JP6920229B2 - Test equipment for flame detectors - Google Patents

Description

The present invention relates to a flame detector test apparatus used for testing a flame detector.

Currently, flame detectors that detect flames generated in buildings and notify them of fires are widely used. A flame detector cannot play its role unless it operates reliably in the event of a fire. Therefore, at the place where the flame detector is installed, for example, a test for confirming whether or not the flame detector operates normally (hereinafter, also referred to as "operation test") is performed.

Among various tests of the flame detector, for example, the operation test is performed using an operation test device for a flame detector as described in Patent Document 1. The flame caused by a fire becomes wavelength light having a unique spectral ratio due to carbon dioxide resonance radiation. For this reason, in the operation test using the operation test device for the flame detector, it is confirmed whether the flame detector operates normally by reproducing the wavelength light having the same spectral ratio as the flame caused by the fire. ..

The wavelength light emitted from the flame by carbon dioxide resonance radiation has the spectral characteristics of infrared rays having a peak in the wavelength 4.5 μm band, and these spectral characteristics are large with the spectral characteristics of infrared rays emitted from objects other than flames. different.
On the other hand, the infrared flame detector is provided with an infrared detection element for detecting infrared rays. The infrared detection element is provided in the flame detector as a photodetector having sensitivity in the carbon dioxide resonance radiation band. There are two types of infrared flame detectors: single wavelength type and three wavelength type. The single-wavelength flame detector is equipped with one infrared detection element that is sensitive to the peak wavelength of the carbon dioxide resonance radiation band, and the three-wavelength flame detector is sensitive to different wavelength bands of the carbon dioxide resonance radiation band. It is provided with three infrared detection elements having.

The operation test device for a flame detector used in a single-wavelength flame detector irradiates an infrared detection element of the flame detector with infrared rays in the wavelength band of 4.5 μm. On the other hand, the flame detector operation test device used for the three-wavelength flame detector (hereinafter, also referred to as "three-wavelength flame detector operation test device") has infrared rays having a wavelength of 4.5 μm and a wavelength of 4. It is necessary to irradiate the three infrared detection elements of the flame detector with infrared rays in the wavelength band longer than 5 μm and infrared rays in the wavelength band shorter than 4.5 μm at the same spectral ratio as the carbon dioxide resonance radiation by the flame. be. Therefore, the operation test device for the three-wavelength flame detector has a function of irradiating the three infrared detection elements of the flame detector with infrared rays of a specific wavelength by using, for example, three bandpass filters having different transmission wavelength ranges. There is one equipped with. However, if a bandpass filter is used, the cost of the operation test device for the flame detector becomes high.

Therefore, in the operation test device for a three-wavelength flame detector, the amount of test light emitted from the light source is limited by three transmission holes, so that the flame detector has a spectral ratio similar to that of a flame caused by a fire. Some of the three infrared detection elements can be irradiated with test light. In this type of operation test device for a three-wavelength flame detector, it is necessary to accurately align the three transmission holes with respect to the three infrared detection elements of the three-wavelength flame detector. This is because the misalignment between the corresponding infrared detection element and the transmission hole may change the dose of infrared rays to be irradiated to the infrared detection element through the transmission hole, which may adversely affect the result of the operation test.

Therefore, the operation test device for the three-wavelength flame detector is provided with a fitting frame corresponding to the outer shape of the flame detector. Then, in the actual operation test, the flame detector is fitted to the fitting frame to align the flame detector operation test device and the flame detector relative to each other.

Japanese Unexamined Patent Publication No. 2007-264847

However, conventionally, an operation test device for a dedicated flame detector is prepared for each flame detector and an operation test is carried out. That is, the flame detector and the operation test device for the flame detector are associated with each other in a one-to-one relationship. Therefore, for example, when performing an operation test of two flame detectors having different external dimensions, it is necessary to prepare two flame detector operation test devices that match the external dimensions of these flame detectors.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a flame detector test apparatus capable of testing a plurality of flame detectors having different external dimensions.

The present invention is a flame detector test apparatus used for testing a flame detector having a photodetector for flame sensing.
A panel having a transmission hole for transmitting the test light for the test,
A fitting frame that is attached to the panel and into which the flame detector is fitted for alignment of the transmission hole and the photodetector.
A mounting position changing mechanism capable of changing the mounting position of the fitting frame so that a plurality of flame detectors having different external dimensions can be fitted to the fitting frame.
To be equipped.

According to the present invention, it is possible to provide a flame detector test apparatus capable of supporting an operation test of a plurality of flame detectors having different external dimensions.

It is a perspective view which shows an example of the flame detector which is the object of the operation test. It is a front view of the flame detector shown in FIG. It is a perspective view which looked at the operation test apparatus for a flame detector which concerns on 1st Embodiment of this invention from the back side. It is a perspective view which looked at the operation test apparatus for a flame detector which concerns on 1st Embodiment of this invention from the front side. It is a front view of the operation test apparatus for a flame detector shown in FIGS. 3A and 3B. It is a rear view of the operation test apparatus for a flame detector shown in FIGS. 3A and 3B. FIG. 3A is a side view of the flame detector operation test apparatus shown in FIG. 3A as viewed from the VI direction. FIG. 3A is a side view of the flame detector operation test apparatus shown in FIG. 3A as viewed from the VII direction. It is sectional drawing at the position VIII-VIII of the operation test apparatus for a flame detector shown in FIG. 7. It is a perspective view of the back side which shows the example which changed the mounting position of a pair of 1st guide members. It is a front side perspective view which shows the example which changed the mounting position of a pair of 1st guide members. It is a front view which shows the example which changed the mounting position of a pair of 1st guide members. It is a rear view which shows the example which changed the mounting position of a pair of 1st guide members. It is a perspective view of the back side which shows the state which set the operation test apparatus for a flame detector in a flame detector. It is a front side perspective view which shows the state which set the flame detector operation test apparatus in a flame detector. It is a perspective view of the back side which shows the state which set the operation test apparatus for a flame detector in another flame detector. It is a front side perspective view which shows the state which set the flame detector operation test apparatus in another flame detector. It is a perspective view which looked at the operation test apparatus for a flame detector which concerns on 2nd Embodiment of this invention from the back side. FIG. 6 is a perspective view of the flame detector operation test apparatus shown in FIG. 14 as viewed from the front side. It is a front view of the operation test apparatus for a flame detector shown in FIG.

<Inventor's knowledge>
In general, new models of flame detectors are developed for the purpose of achieving high functionality, improved reliability, miniaturization, and weight reduction. Among these, for example, if the flame detector is miniaturized, the external dimensions of the flame detector will change between the old model before development and the new model after development. Also, if the outer shape of the flame detector is changed between the old model and the new model, the outer dimensions of the flame detector will also change. In that case, in order to perform an operation test of a new model flame detector, it is customary to redesign a dedicated flame detector test device.

Even if a new model of flame detector is released by the manufacturer, the switch from the old model to the new model is not immediately performed. Therefore, the period in which the old model and the new model coexist will continue for a certain period of time. In addition, there are cases where old models and new models coexist, for example, by giving superiority or inferiority to functions. In such a case, in the conventional technical idea of redesigning the flame detector test device according to the specifications of the flame detector, it is necessary to prepare a dedicated flame detector test device for each flame detector. Therefore, in an environment where old and new flame detector models coexist, it is necessary to separately prepare a flame detector test device suitable for each model.

The present inventor basically changes the position of the photodetector when the flame detector is viewed from the front even if the external dimensions of the flame detector are changed due to a design change accompanying the development of the flame detector or the like. Focusing on the fact that there is no such point, the present invention was conceived.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In the embodiment of the present invention, the flame detector will be described first, and then the flame detector operation test apparatus, which is an example of the flame detector test apparatus, will be described.

<Flame detector>
FIG. 1 is a perspective view showing an example of a flame detector to be tested for operation, and FIG. 2 is a front view of the flame detector shown in FIG.
As shown in FIGS. 1 and 2, the flame detector 1 includes a detector body 2. The sensor main body 2 is formed in a quadrangular front view, using, for example, an aluminum alloy as a main material. The front surface 2a of the sensor main body 2 is formed in a circular shape when viewed from the front. Four side surfaces 2b and 2c are formed on the outer peripheral portion of the sensor main body 2. Of the four side surfaces 2b and 2c, the two side surfaces 2b are arranged parallel to each other, and the two side surfaces 2c are also arranged parallel to each other. Further, the side surface 2b and the side surface 2c are arranged so as to form a right angle to each other. Here, when the flame detector 1 is viewed from the front, the external dimensions of the flame detector 1 defined by the two side surfaces 2b are La, and the external dimensions of the flame detector 1 defined by the two side surfaces 2c are defined as La. Let it be Lb. In the flame detector 1 shown in FIG. 2, La = Lb is set as an example.

The sensor main body 2 is provided with a detection window 3. The detection window 3 is formed by being recessed on the back side of the front surface 2a of the sensor main body 2. Further, the detection window 3 is arranged at the center of the front surface 2a of the sensor main body 2. A plurality of photodetecting elements 4a, 4b, and 4c are arranged in the detection window 3. Therefore, the external light enters the respective photodetecting elements 4a, 4b, 4c through the detection window 3. The photodetector elements 4a, 4b, and 4c are arranged in a row at predetermined intervals. In this embodiment, an embodiment in which three photodetector elements 4a, 4b, and 4c are arranged in a line at equal intervals is shown as an example. Further, among the external dimensions La and Lb of the flame detector 1, the external dimensions in the alignment direction of the three photodetectors 4a, 4b, and 4c are Lb, and the external dimensions in the direction orthogonal to the alignment direction are La.

Each photodetector 4a, 4b, 4c is composed of an infrared detection element having sensitivity to a different wavelength band in the wavelength band in which a fire flame is radiated by carbon dioxide resonance radiation. To give a specific example, the photodetector 4a is composed of an infrared detector having sensitivity in the wavelength band of 4.5 μm. Further, the photodetector 4b is composed of an infrared detection element having a sensitivity in the wavelength 5.0 μm band, and the photodetector 4c is composed of an infrared detection element having a sensitivity in the wavelength 4.2 μm band.

The flame detector 1 having the above configuration receives the light incident on the detection window 3 by the three photodetectors 4a, 4b, and 4c. As a result, the three photodetecting elements 4a, 4b, and 4c each detect infrared rays in different wavelength bands and output a detection signal. At this time, the detection signal output by the photodetector 4a corresponds to the amount of infrared rays received in the wavelength band of 4.5 μm. Further, the detection signal output by the photodetector 4b corresponds to the amount of infrared rays received in the wavelength 5.0 μm band, and the detection signal output by the photodetector 4c corresponds to the amount of infrared rays received in the wavelength 4.2 μm band. It will correspond to. In the flame detector 1, the spectral ratio of the wavelength light grasped from the detection signals of the respective light detection elements 4a, 4b, 4c is set to the reference spectral ratio preset in the flame detection unit of the flame detector 1. If they are similar, a fire signal will be emitted. The reference spectral ratio is set according to the spectral ratio of the light emitted by the flame caused by the fire.

[First Embodiment]
<Operation test device for flame detector>
FIG. 3A is a perspective view of the flame detector operation test device according to the first embodiment of the present invention as viewed from the rear side, and FIG. 3B shows the flame detector operation test device according to the first embodiment of the present invention. It is a perspective view seen from the front side. Further, FIG. 4 is a front view of the flame detector operation test device shown in FIG. 3, FIG. 5 is a rear view of the flame detector operation test device shown in FIG. 3, and FIG. 6 is shown in FIG. It is a side view of the operation test apparatus for a flame detector as seen from the VI direction. Further, FIG. 7 is a side view of the flame detector operation test apparatus shown in FIG. 3 as viewed from the VII direction, and FIG. 8 is a cross-sectional view of the flame detector operation test apparatus shown in FIG. 7 at the VIII-VIII position. Is.

As shown in FIGS. 3 to 8, the flame detector operation test device 10 includes a box 11, a panel 12, and a fitting frame 15.

(box)
The box 11 is formed in a rectangular parallelepiped shape. Both ends of the box 11 are open in a quadrangular shape. A folded-back portion 20 (see FIG. 5) is formed in one opening of the box 11, and a lid 22 is attached to the folded-back portion 20 using a screw 21. The lid 22 is attached so as to close one opening of the box 11. On the other hand, a pair of flange portions 24 are formed in the other opening of the box 11. The pair of flange portions 24 have an integral structure with the box 11. Each flange portion 24 is fixed to the panel 12 by using a plurality of fasteners 25.

Auxiliary rod mounting portions 30 project from the two side wall portions 11a of the box 11 facing each other. The auxiliary rod attachment portion 30 is a portion for attaching an auxiliary rod (not shown) when using the flame detector operation test device 10. The auxiliary rod mounting portion 30 is used when performing an operation test of the flame detector 1 installed in a high place such as the ceiling of a building. A non-slip portion 31 is provided at the tip of the auxiliary rod mounting portion 30. The non-slip portion 31 prevents both of them from slipping when the auxiliary rod is attached to the auxiliary rod attachment portion 30.

As shown in FIG. 8, a light source 32, a battery holder 33, a control board 34, and a reflector 35 are arranged inside the box 11. The light source 32 emits a test light for an operation test, and is configured by using, for example, a lamp. However, the light source 32 is not limited to the lamp, and may be any light source that emits light having a wavelength suitable for the operation test of the flame detector 1. Of the wavelength light emitted from the flame by carbon dioxide resonance radiation, the wavelength light in the infrared band is particularly used as the test light 35. The test light is emitted from the reflector 35 toward the front surface of the box 11. The battery holder 33 is a holder for accommodating a battery that serves as a power source for light emission of the light source 32. The control board 34 is composed of a circuit board for controlling the drive of the light source 32.

(panel)
As shown in FIGS. 4 to 6, the panel 12 is formed in the shape of a flat plate having a rectangular shape in a plan view. Specifically, the panel 12 is formed into a rectangular shape in a plan view by two long side portions 12a parallel to each other and two short side portions 12b parallel to each other and perpendicular to the long side portion 12a. The panel 12 is mainly composed of a metal material such as an aluminum alloy. The thickness dimension of the panel 12 is set to, for example, about 1 to 2 mm in order to secure rigidity so that the entire panel 12 is not easily deformed.

Three transmission holes 40a, 40b, and 40c are formed in the central portion of the panel 12. The three transmission holes 40a, 40b, 40c are provided corresponding to the three photodetector elements 4a, 4b, 4c provided in the flame detector 1. The permeation holes 40a, 40b, and 40c penetrate the panel 12 in the thickness direction. Here, assuming that the longitudinal direction of the panel 12 is the first direction X and the lateral direction of the panel 12 is the second direction Y, the three transmission holes 40a, 40b, and 40c are the three flame detectors 1. The photodetectors 4a, 4b, and 4c are arranged side by side at equal intervals in the second direction Y so as to correspond to the arrangement intervals. In the second direction Y, the distance between the centers of the transmission hole 40a and the transmission hole 40b is set to be the same as the distance between the centers of the photodetector 4a and the photodetector 4b in the flame detector 1, and the transmission hole 40b The distance between the centers of the light detection element 4b and the light detection element 4c is set to be the same as the distance between the centers of the light detection element 4b and the light detection element 4c.

When the operation test of the flame detector 1 is performed using the flame detector operation test device 10, the transmission hole 40a and the photodetector 4a are arranged coaxially, and the transmission hole 40b and the photodetector 4b are arranged. Ideally, the transmission holes 40c and the photodetector 4c are arranged coaxially. However, in order to ensure the reliability of the test results of the operation test, a deviation of about several mm is allowed in the positional relationship between the corresponding transmission holes and the photodetector.

(Mating frame)
The fitting frame 15 is more specific to align the relative alignment between the flame detector operation test device 10 and the flame detector 1 when the flame detector operation test device 10 is used to perform the operation test of the flame detector 1. Is attached to the panel 12 for alignment of the three transmission holes 40a, 40b, 40c and the three light detection elements 4a, 4b, 4c. The fitting frame 15 is a portion to which the flame detector 1 is fitted at the time of the above alignment.

The fitting frame 15 is attached to the panel 12. Here, if one of the two main surfaces of the panel 12 is the front surface and the other main surface, which is the back side thereof, is the back surface, the box 11 is attached to the back surface side of the panel 12 and has a fitting frame. 15 is attached to the front side of the panel 12. Therefore, the fitting frame 15 and the box 11 are located on opposite sides of each other with the panel 12 in between.

The fitting frame 15 has a pair of first guide members 51 and a pair of second guide members 52. The pair of first guide members 51 guide the flame detector from both sides in the first direction X, and the pair of second guide members 52 guide the flame detector from both sides in the second direction Y. It guides you to pinch it. The first guide member 51 and the second guide member 52 are each formed in a prismatic shape. The first guide member 51 and the second guide member 52 can be made of, for example, a resin material.

The pair of first guide members 51 are arranged so as to face each other in the first direction X. Here, the facing distance between the pair of first guide members 51 in the first direction X is Lx (see FIG. 4). The facing distance Lx is a distance in a direction orthogonal to the arrangement direction of the three transmission holes 40a, 40b, and 40c. The pair of first guide members 51 are located at equal distances to one and the other of the first direction X from the virtual reference line K (see FIG. 4) passing through the center positions of the three transmission holes 40a, 40b, and 40c. That is, they are arranged at a distance of Lx / 2.

The pair of second guide members 52 are arranged so as to face each other in the second direction Y. Each second guide member 52 is formed with a recess 52a corresponding to the outer shape of the flame detector 1. The first guide member 51 and the second guide member 52 are arranged so as to form a right angle to each other. Therefore, the fitting frame 15 is framed in a quadrangle in which the four corners are at right angles to each other when viewed from the front side of the panel 12. Further, the frame shape of the fitting frame 15 corresponds to the outer shape of the flame detector 1 fitted in the fitting frame 15.

The pair of second guide members 52 are attached to the panel 12 using three screws 54, respectively. Each second guide member 52 is provided with three screw holes 55 corresponding to the three screws 54. Each screw 54 is screwed into a corresponding screw hole 55. Screwing means that the female screw and the male screw mesh with each other. Each screw 54 is tightened with an appropriate force, and the second guide member 52 is fixed to the panel 12 by this tightening force.

(Mounting position change mechanism)
On the other hand, the mounting position of the pair of first guide members 51 can be changed by the mounting position changing mechanism 45. The mounting position changing mechanism 45 is configured so that the mounting position of the fitting frame 15 can be changed so that a plurality of flame detectors having different external dimensions can be fitted to the fitting frame 15. In the present embodiment, the mounting position changing mechanism 45 can change the mounting position of the pair of first guide members 51 so as to change the facing distance Lx of the pair of first guide members 51 in the first direction X. It is composed.

The mounting position changing mechanism 45 is a position of a support portion 46 that movably supports a pair of first guide members 51 along the first direction X, and a pair of first guide members 51 supported by the support portion 46. Each has a fixing portion 47 and a fixing portion 47 for fixing the above.

The support portion 46 is composed of a slide elongated hole 57 provided in the panel 12 and a protrusion 61 provided in the first guide member 51. The fixing portion 47 is composed of a screw 56 with a knob, a long fixing hole 58 provided in the panel 12, and a screw hole 62 provided in the first guide member 51.

Hereinafter, the configuration of the mounting position changing mechanism 45 will be described in more detail.
Each of the pair of first guide members 51 is attached to the panel 12 using one screw with a knob 56. The knob-attached screw 56 is tightened with an appropriate force, and the first guide member 51 is fixed to the panel 12 by this tightening force. Two slide elongated holes 57 and one fixing elongated hole 58 are provided in the vicinity of each short side portion 12b of the panel 12. The fixing elongated holes 58 are arranged in the middle portion in the second direction Y, and the two sliding elongated holes 57 are arranged on both sides of the second direction Y with the fixing elongated holes 58 in between. .. As a result, a total of four slide elongated holes 57 and a total of two fixing elongated holes 58 are formed on the panel 12.

The slide elongated hole 57 and the fixing elongated hole 58 each penetrate the panel 12 in the thickness direction. Further, the longitudinal direction of each slide elongated hole 57 and the longitudinal direction of each fixing elongated hole 58 are both parallel to the first direction X.

On the other hand, the pair of first guide members 51 are provided with two protrusions 61 and one screw hole 62, respectively. The two protrusions 61 are engaged with two corresponding elongated slide holes 57. The protrusion 61 is movably engaged with the elongated slide hole 57 in the longitudinal direction. The knob-attached screw 56 is screwed into the screw hole 62 of the first guide member 51 and is appropriately tightened in that state to fix the first guide member 51 to the panel 12.

(Operating principle of mounting position change mechanism)
Subsequently, the operating principle of the mounting position changing mechanism 45 will be described.
First, in the state where the screw with knob 56 is tightened, the first guide member 51 is fixed to the panel 12. Therefore, the mounting position of the first guide member 51 cannot be changed while the knob-attached screw 56 is still tightened.

On the other hand, when the knob-attached screw 56 is loosened, the protrusion 61 becomes movable in the longitudinal direction of the slide elongated hole 57, and the knob-attached screw 56 becomes movable in the longitudinal direction of the fixing elongated hole 58. Therefore, by loosening the screw 56 with the knob, the first guide member 51 can be moved in the first direction X in a slide manner, and the mounting position of the first guide member 51 can be changed. The slide-type movement means that the object slides and moves.

The movement of the first guide member 51 in the first direction X is guided by the engagement between the long slide hole 57 and the protrusion 61. Further, when the first guide member 51 is moved in the first direction X, the facing distance Lx of the pair of first guide members 51 changes. Specifically, when the first guide member 51 is moved inside the panel 12, the facing distance Lx becomes short, and when the first guide member 51 is moved outside the panel 12, the facing distance Lx becomes long. .. The inside of the panel 12 described here means a direction in which the first guide member 51 approaches the three transmission holes 40a, 40b, 40b, and the outside of the panel 12 means three first guide members 51. It means a direction away from the transmission holes 40a, 40b, 40b.

In the first embodiment, as shown in FIGS. 3, 4 and 5, a protrusion 61 is abutted against the inner end of the elongated slide hole 57 in the longitudinal direction, and a screw with a knob 56 is tightened. 1 The mounting position of the guide member 51 is defined as the “first mounting position”. Further, as shown in FIGS. 9A, 9B, 10 and 11, the first guide member when the protrusion 61 is abutted against the outer end of the elongated slide hole 57 in the longitudinal direction and the screw 56 with a knob is tightened. The mounting position of 51 is referred to as a "second mounting position". When the pair of first guide members 51 are present at the first mounting position and the second mounting position, the facing distance Lx is longer in the latter case than in the former case. However, the distances from the virtual reference line K (see FIG. 10) passing through the center positions of the three transmission holes 40a, 40b, and 40c to the first guide member 51 are all Lx / 2. .. The reason for setting in this way is that even if the flame detectors have different external dimensions, the position of the photodetector when the flame detector is viewed from the front is basically the same, and the external dimensions of the flame detector are 1. This is because it is set at / 2.

<Operation test>
Next, an operation test of the flame detector using the operation test device for the flame detector according to the first embodiment of the present invention will be described. In the first embodiment, a case where the flame detector 1 shown in FIGS. 1 and 2 is a test target and a case where a flame detector having an external dimension different from that of the flame detector 1 is a test target are given as an example. I will explain.

First, when the flame detector 1 is the subject of the test, the pair of first guide members 51 are first formed by abutting the protrusion 61 on the inner end of the elongated slide hole 57 and tightening the screw with knob 56. Fix it in the mounting position. In this case, the facing distance Lx of the pair of first guide members 51 is set to a dimension slightly longer than the external dimension La of the flame detector 1. Specifically, the facing distance Lx of the pair of first guide members 51 is set to a dimension longer than the external dimension La of the flame detector 1 by about 0.4 mm.

On the other hand, with respect to the pair of second guide members 52, the mounting positions of the respective second guide members 52 are fixed by screwing and tightening the three screws 54 into the screw holes 55. In this case, the facing distance between the pair of second guide members 52 (recesses 52a) in the second direction Y is compared with the external dimension Lb of the flame detector 1 as in the case of the pair of first guide members 51 described above. Is set to a slightly longer dimension. The facing distance of the pair of second guide members 52 (recessed portions 52a) described here refers to the facing distance on the virtual reference line K passing through the center positions of the three transmission holes 40a, 40b, and 40c.

The attachment work of the pair of second guide members 52 is not performed for each operation test, but is performed in the first assembly step of the flame detector operation test device 10 or the subsequent maintenance work.

Next, the operation test device 10 for the flame detector is brought closer to the flame detector 1 with the fitting frame 15 facing the flame detector 1. At this time, the alignment directions of the three transmission holes 40a, 40b, 40c of the panel 12 and the alignment directions of the three photodetector elements 4a, 4b, 4c of the flame detector 1 are aligned. Then, the front surface of the panel 12 comes into contact with the front surface 2a of the sensor body 2 while guiding the four side surfaces 2b and 2c of the flame detector 1 with the pair of first guide members 51 and the pair of second guide members 52. The flame detector 1 is fitted into the fitting frame 15. At that time, the pair of first guide members 51 guide the flame detector 1 so as to sandwich the flame detector 1 from both sides in the first direction X, and the pair of second guide members 52 guide the flame detector 1 in the second direction Y. Guide it so that it is sandwiched from both sides. Further, of the four side surfaces 2b and 2c of the flame detector 1, the two side surfaces 2b are arranged close to or in contact with the corresponding first guide member 51, and the two side surfaces 2c correspond to each other. It is arranged in close proximity to or in contact with the second guide member 52.

FIG. 12A is a rear perspective view showing a state in which the flame detector operation test device 10 is set in the flame detector 1, and FIG. 12B is a state in which the flame detector operation test device 10 is set in the flame detector 1. It is a perspective view of the front side which shows. Further, the alternate long and short dash line in FIG. 4 indicates the position of the flame detector 1 when the flame detector 1 is fitted to the fitting frame 15 of the flame detector operation test device 10.

In this way, by fitting the flame detector 1 into the fitting frame 15 of the flame detector operation test device 10, the flame detector 1 is positioned in the main surface of the panel 12. As a result, the three transmission holes 40a, 40b, 40c of the panel 12 and the three photodetector elements 4a, 4b, 4c of the flame detector 1 can be aligned with each other. Therefore, the test light 35 emitted from the light source 32 of the flame detector operation test device 10 is passed through the three transmission holes 40a, 40b, 40c of the panel 12 and the corresponding three photodetector elements 4a, 4b, 4c. Can be accurately irradiated. Therefore, the operation test of the flame detector 1 can be performed with high reliability.
As shown by the alternate long and short dash line in FIG. 4, the distance between the recesses 52a of the pair of second guide members 52 in the second direction Y, which is formed corresponding to the outer shape of the flame detector 1, is set to the flame. The flame detector 1 is positioned within the main surface of the panel 12 by setting it substantially equal to the external dimension Lb of the sensor 1. However, the pair of second guide members 52 are not provided with the recesses 52a, and the facing distance between the inner surfaces of the pair of second guide members 52 in the second direction Y is set to be substantially equal to the external dimension Lb of the flame detector 1. By doing so, the flame detector 1 may be positioned in the main surface of the panel 12.

On the other hand, when another flame detector having a different external dimension from that of the flame detector 1 is to be tested, the mounting position of the pair of first guide members 51 is changed from the first mounting position to the second mounting position. change. When changing the mounting position of the pair of first guide members 51, the mounting position changing mechanism 45 is used. In the first embodiment, as another flame detector, a flame detector having a larger external dimension La among the external dimensions La and Lb of the flame detector 1 is assumed. In the following description, the other flame detector will be referred to as a "second flame detector". In this assumption, for example, the flame detector 1 corresponds to the new model, and the second flame detector corresponds to the old model.

When changing the mounting position of the pair of first guide members 51, it is necessary to move each of the first guide members 51 in the first direction X. Therefore, first, the screw with the knob 56 is loosened to move the first guide member 51 in the longitudinal direction of the long slide hole 57. The movement of the first guide member 51 is guided by the engagement of the long slide hole 57 and the protrusion 61. At this time, as shown in FIGS. 9A and 11, the protrusion 61 of the first guide member 51 is abutted against the outer end of the long slide hole 57. As a result, the mounting position of the first guide member 51 is changed from the first mounting position to the second mounting position, and the knob screw 56 is tightened in that state. As a result, the pair of first guide members 51 can be fixed at the second mounting position.

In this way, when the pair of first guide members 51 are fixed at the second mounting position, the pair of first guide members 51 in the first direction X is compared with the case where the pair of first guide members 51 is fixed at the first mounting position. The facing distance Lx becomes longer. Therefore, for example, in the first direction X, even if the external dimension of the second flame detector fitted to the fitting frame 15 is larger than that of the flame detector 1, the second flame detector is mounted on the fitting frame 15. Can be fitted. Specifically, when the pair of first guide members 51 are moved to the second mounting position, the facing distance Lx is set to be slightly larger than the external dimensions of the second flame detector. Therefore, the second flame detector can be fitted to the fitting frame 15.

FIG. 13A is a rear perspective view showing a state in which the flame detector operation test device 10 is set in the second flame detector 100, and FIG. 13B shows the flame detector operation test device 10 set in the second flame detector 100. It is a perspective view of the front side which shows the state which was set in. Further, the alternate long and short dash line in FIG. 10 indicates the position of the second flame detector 100 when the second flame detector 100 is fitted into the fitting frame 15 of the flame detector operation test device 10.

In this way, by fitting the second flame detector 100 into the fitting frame 15 of the flame detector operation test device 10, the second flame detector 100 is positioned within the main surface of the panel 12. As a result, the three transmission holes 40a, 40b, 40c of the panel 12 and the three photodetectors (not shown) of the second flame detector 100 can be aligned with each other. Therefore, the test light emitted from the light source 32 of the flame detector operation test device 10 is accurately irradiated to the corresponding three photodetector elements through the three transmission holes 40a, 40b, and 40c of the panel 12. Can be done. Therefore, the operation test of the second flame detector 100 can be performed with high reliability.
The pair of second guide members 52 can be provided by setting the facing distance between the recesses 52a to be substantially equal to the external dimension Lb of the flame detector 1 (two-dot chain line in FIG. 4), and the pair of second guides. By setting the facing distance of the inner surface of the member 52 substantially equal to the external dimension Lb of the second flame detector 100 (two-dot chain line in FIG. 10), each of the flame detector 1 and the second flame detector 100 It is configured to be positioned within the main surface of the panel 12. By providing the recess 52a in the second guide member 52 in this way, the flame detectors 1 and the second flame detectors having slightly different external dimensions Lb without changing the fixed positions of the pair of second guide members 52. Each of the 100 can be positioned within the main surface of the panel 12.

<Effect of the first embodiment>
According to the first embodiment of the present invention, one or more of the following effects can be obtained.

In the first embodiment of the present invention, a mounting position changing mechanism capable of changing the mounting position of the pair of first guide members 51 so as to change the facing distance of the pair of first guide members 51 in the first direction X. The configuration provided with 45 is adopted. This makes it possible to carry out an operation test of the flame detector 1 and the second flame detector 100 having different external dimensions by using a common flame detector operation test device 10. Further, for example, when the flame detector 1 is a new model and the second flame detector 100 is an old model, the flame detector operation test device 10 used for the new model flame detector 1 is the second model of the old model. It can also be used with the flame detector 100. Therefore, the versatility of the flame detector operation test device 10 can be improved.

In the first embodiment of the present invention, a support portion 46 that movably supports a pair of first guide members 51 along a first direction X, and a pair of first guide members supported by the support portions 46. The mounting position changing mechanism 45 is configured by fixing portions 47 that fix the positions of 51 respectively. As a result, when the mounting position of the pair of first guide members 51 is changed between the first mounting position and the second mounting position, the support portion 46 is moved while supporting the first guide member 51. The first guide member 51 can be fixed at a predetermined position. Therefore, the work of changing the mounting position of the first guide member 51 can be performed easily and in a short time.

Incidentally, as a configuration for changing the mounting positions of the pair of first guide members 51, holes for fixing the first guide members 51 are provided at the first mounting position and the second mounting position, respectively, and the holes are provided. The first guide member 51 may be fixed to the first mounting position or the second mounting position by screwing. This configuration can also be one of the embodiments of the present invention. However, when this configuration is adopted, it is necessary to remove the first guide member 51 from the panel 12 each time the mounting position of the pair of first guide members 51 is changed, so that the work of changing the mounting position is required. It is troublesome and takes a long time. On the other hand, when the configuration of the first embodiment is adopted, each first guide member 51 can be obtained by simply loosening the knob-attached screw 56 while the pair of first guide members 51 are attached to the panel 12. It can be moved in a slide format. Therefore, it is preferable to adopt the configuration of the first embodiment.

In the first embodiment of the present invention, the flame detector 1 has three photodetectors 4a, 4b, 4c, and correspondingly, three transmission holes are formed in the panel 12 of the flame detector operation test device 10. A configuration in which 40a, 40b, and 40c are provided is adopted. As a result, when the flame detector 1 that detects the flame of a fire using the three photodetectors 4a, 4b, 4c is the target of the operation test, the photodetectors 4a, 4b, 4c and the light corresponding to each other are used. The detection elements 4a, 4b, and 4c can be accurately aligned by simply fitting the flame detector 1 into the fitting frame 15. This effect is the same when the panel 12 is provided with two or four or more transmission holes according to the number of photodetectors provided in the flame detector. However, the operation test device for a flame detector according to the present invention is not limited to the one provided with a panel having a plurality of permeation holes, and can be applied to the one provided with a panel having one permeation hole. Specifically, when a flame detector that detects a flame using one light detection element, such as a single-wavelength flame detector, is to be tested, a panel having one transmission hole is provided. An operation test can be performed using an operation test device for a flame detector.

[Second Embodiment]
Next, the operation test device for a flame detector according to the second embodiment of the present invention will be described.
FIG. 14 is a perspective view of the flame detector operation test device according to the second embodiment of the present invention as viewed from the rear side. Further, FIG. 15 is a perspective view of the flame detector operation test device shown in FIG. 14 as viewed from the front side, and FIG. 16 is a front view of the flame detector operation test device shown in FIG. In the second embodiment of the present invention, the same reference numerals are given to the elements corresponding to the components mentioned in the first embodiment, and duplicate description will be omitted.

The flame detector operation test device 10A according to the second embodiment of the present invention has a second flame detector operation test device 10 in addition to the mounting position changing mechanism 45, as compared with the flame detector operation test device 10 shown in FIGS. The difference is that the mounting position changing mechanism 75 is provided.

(Second mounting position change mechanism)
The second mounting position changing mechanism 75 changes the mounting position of the pair of second guide members 52 so as to change the facing distance Ly (see FIG. 16) of the pair of second guide members 52 in the second direction Y. It is configured to be possible.

The second mounting position changing mechanism 75 includes a support portion 76 that movably supports the pair of second guide members 52 along the second direction Y, and a pair of second guide members supported by the support portion 76. It has a fixing portion 77 for fixing the position of each of the 52.

The support portion 76 is composed of a slide elongated hole 87 provided in the panel 12 and a protrusion 88 provided in the second guide member 52. The fixing portion 77 is composed of a screw 89 with a knob, a fixing elongated hole 90 provided in the panel 12, and a screw hole 91 provided in the second guide member 52.

Hereinafter, the configuration of the second mounting position changing mechanism 75 will be described in more detail.
Each of the pair of second guide members 52 is attached to the panel 12 using one screw 89 with a knob. The knob-attached screw 89 is tightened with an appropriate force, and the second guide member 52 is fixed to the panel 12 by this tightening force. Two slide elongated holes 87 and one fixing elongated hole 90 are provided in the vicinity of each long side portion 12a of the panel 12. The fixing elongated holes 90 are arranged in the middle portion of the first direction X, and the two sliding elongated holes 87 are arranged on both sides of the first direction X with the fixing elongated holes 90 sandwiched between them. .. As a result, a total of four slide elongated holes 87 and a total of two fixing elongated holes 90 are formed on the panel 12.

The slide elongated hole 87 and the fixing elongated hole 90 penetrate each other in the thickness direction of the panel 12. Further, the longitudinal direction of each slide elongated hole 87 and the longitudinal direction of each fixing elongated hole 90 are both parallel to the second direction Y.

On the other hand, the pair of second guide members 52 are each provided with two protrusions 88 and one screw hole 91. The two protrusions 88 are engaged with two corresponding elongated slide holes 87. The protrusion 88 is movably engaged with the elongated slide hole 87 in the longitudinal direction. The knob-attached screw 89 is screwed into the screw hole 91 of the second guide member 52 and is appropriately tightened in that state to fix the second guide member 52 to the panel 12.

Subsequently, the operating principle of the second mounting position changing mechanism 75 will be described.
First, in the state where the screw 89 with the knob is tightened, the second guide member 52 is fixed to the panel 12. Therefore, the mounting position of the second guide member 52 cannot be changed while the knob-attached screw 89 is still tightened.

On the other hand, when the knob-attached screw 89 is loosened, the protrusion 88 becomes movable in the longitudinal direction of the slide elongated hole 87, and the knob-attached screw 89 becomes movable in the longitudinal direction of the fixing elongated hole 90. Therefore, by loosening the screw 89 with the knob, the second guide member 52 can be moved in the second direction Y in a slide manner, and the mounting position of the second guide member 52 can be changed.

The movement of the second guide member 52 in the second direction Y is guided by the engagement between the long slide hole 87 and the protrusion 88. Further, when the second guide member 52 is moved in the second direction Y, the facing distance Ly of the pair of second guide members 52 changes. Specifically, when the second guide member 52 is moved inside the panel 12, the facing distance Ly becomes short, and when the second guide member 52 is moved outside the panel 12, the facing distance Ly becomes long. .. The inside of the panel 12 described here means a direction in which the second guide member 52 approaches the three transmission holes 40a, 40b, 40b, and the outside of the panel 12 means three second guide members 52. It means a direction away from the transmission holes 40a, 40b, 40c.

In the second embodiment, the mounting position of the second guide member 52 when the protrusion 88 is abutted against the inner end of the elongated slide hole 87 in the longitudinal direction and the screw 89 with the knob is tightened is set to "third mounting". "Position". Further, as shown in FIG. 14, the mounting position of the second guide member 52 when the protrusion 88 is abutted against the outer end of the long slide hole 87 in the longitudinal direction and the screw 89 with the knob is tightened is set to "4th". "Mounting position". When the pair of second guide members 52 are present at the third mounting position and the fourth mounting position, the facing distance Ly is longer in the latter case than in the former case, but the transmission hole The distances from the center position of 40b to each of the second guide members 52 are all equal at the distance of Ly / 2. The reason for setting in this way is that even if the flame detectors have different external dimensions, the position of the photodetector when the flame detector is viewed from the front is basically the same, and the external dimensions of the flame detector are 1. This is because it is set at / 2.

As described above, in the flame detector operation test device 10A according to the second embodiment of the present invention, in addition to the mounting position changing mechanism 45 capable of changing the mounting position of the pair of first guide members 51, the pair of second guide members 51 is changed. A configuration including a second mounting position changing mechanism 75 capable of changing the mounting position of the guide member 52 is adopted. Therefore, both the facing distance Lx of the pair of first guide members 51 and the facing distance Ly of the pair of second guide members 52 can be changed according to the external dimensions of the flame detector to be tested. Therefore, for example, among the external dimensions La and Lb of the flame detector 1 shown in FIG. 2, it is possible to correspond not only to the change of the external dimension La but also to the change of the external dimension Lb. As a result, it is possible to provide a more versatile operation test device for a flame detector.

Further, according to the second embodiment of the present invention, when the flame detector operation test device 10A is used, one embodiment suitable for the external dimensions of the flame detector is selected from the four embodiments shown below. Can be used in.
(1) An embodiment in which a pair of first guide members 51 are fixed at a first mounting position and a pair of second guide members 52 are fixed at a third mounting position for use.
(2) An embodiment in which a pair of first guide members 51 are fixed at a first mounting position and a pair of second guide members 52 are fixed at a fourth mounting position for use.
(3) An embodiment in which a pair of first guide members 51 are fixed at a second mounting position, and a pair of second guide members 52 are fixed at a third mounting position for use.
(4) An embodiment in which a pair of first guide members 51 are fixed at a second mounting position, and a pair of second guide members 52 are fixed at a fourth mounting position for use.

Needless to say, in the second embodiment of the present invention, the same effects as those in the first embodiment can be obtained. Further, as in the first embodiment, the flame detector operation test apparatus according to the present invention is not limited to the one provided with a panel having a plurality of transmission holes, and a single wavelength flame detector is used as a test target. It is also applicable to those provided with a panel having one permeation hole.

<Modification example, etc.>
The technical scope of the present invention is not limited to the above-described embodiment, but also includes a form in which various changes and improvements are made to the extent that a specific effect obtained by the constituent requirements of the invention and the combination thereof can be derived.

For example, in each of the above embodiments, the slide elongated hole 57 formed in the panel 12 and the protrusion 61 formed in the first guide member 51 are configured as a support portion 46 that movably supports the first guide member 51. However, the present invention is not limited to this, although a configuration is adopted in which the first guide member 51 is movably supported in the first direction X by engaging with the first guide member 51. For example, although not shown, a long groove is formed in the first guide member 51 along the first direction X, and a protrusion that engages with the long groove is formed as a panel 12, and the long groove and the protrusion are engaged with each other. A configuration may be adopted in which the first guide member 51 is movably supported in the first direction X. This point also applies to the configuration of the support portion 76 that movably supports the second guide member 52.

Further, in each of the above embodiments, the mounting position of the pair of first guide members 51 is set to either the first mounting position or the second mounting position by using the mounting position changing mechanism 45. However, the present invention is not limited to this, and an arbitrary position including an intermediate position between the first attachment position and the second attachment position may be set as the attachment position of the pair of first guide members 51. That is, the mounting positions of the pair of first guide members 51 that can be changed by using the mounting position changing mechanism 45 are not limited to two, and may be three or more. Further, in that case, an index indicating the position where each first guide member 51 should be attached may be provided on the panel 12, and a configuration in which the attachment position of the first guide member 51 can be set according to this index may be adopted. .. The above points are the same for the second mounting position changing mechanism 75 corresponding to the pair of second guide members 52.

Further, in each of the above embodiments, it is assumed that the photodetector is arranged at 1/2 of the external dimensions of the flame detector with respect to the position of the photodetector provided in the detection window of the flame detector. , Although an example of arranging the panel so that the distances from the permeation holes of the panel to the pair of guide members are equal is shown, the present invention is not limited to this. For example, of the pair of first guide members 51, one of the first guide members 51 is fixed at the first mounting position, and the other first guide member 51 is fixed at the second mounting position, whereby the panel 12 It is also possible to arrange so that the distance from the transmission hole 40b of the above to one first guide member 51 and the distance to the other first guide member 51 are different. Further, regarding the pair of second guide members 52, by fixing one second guide member 52 to the third mounting position and fixing the other second guide member 52 to the fourth mounting position, the panel 12 It is also possible to arrange so that the distance from the transmission hole 40b of the above to one second guide member 52 and the distance to the other second guide member 52 are different.

Further, in the above embodiment, the flame detector operation test device has been described as an example of the flame detector test device, but the present invention can also be applied to other test devices used for the flame detector. .. For example, the present invention may be applied to a sensitivity test device or the like that prevents aging by adjusting the light receiving level of the photodetector element that receives light emitted from the test device to a predetermined value.

1 Flame detector, 4a Photodetector, 4b Photodetector, 4c Photodetector, 10,10A Flame detector operation test device, 12 panels, 15 Fitting frame, 40a transmission hole, 40b transmission hole, 40c transmission Hole, 45 Mounting position changing mechanism, 46 Supporting part, 47 Fixing part, 51 First guide member, 52 Second guide member, 75 Second mounting position changing mechanism, X 1st direction, Y 2nd direction, Lx facing distance, Ly facing distance.

Claims (4)

A flame detector test device used for testing a flame detector having a photodetector for flame detection.
A panel having a transmission hole for transmitting the test light for the test,
A fitting frame that is attached to the panel and into which the flame detector is fitted for alignment of the transmission hole and the photodetector.
A mounting position changing mechanism capable of changing the mounting position of the fitting frame so that a plurality of flame detectors having different external dimensions can be fitted to the fitting frame.
A test device for flame detectors. The fitting frame includes a pair of first guide members that guide the flame detector so as to be sandwiched from both sides in the first direction, and a pair of guide members that guide the flame detector so as to be sandwiched from both sides in the second direction. Has a second guide member,
The mounting position changing mechanism is configured so that the mounting position of the pair of first guide members can be changed so as to change the facing distance of the pair of first guide members in the first direction. The test device for the flame detector described in. The mounting position changing mechanism fixes the positions of a support portion that movably supports the pair of first guide members along the first direction and the positions of the pair of guide members supported by the support portions. The test apparatus for a flame detector according to claim 2, further comprising a fixing portion. 2. The test apparatus for a flame detector according to 3.

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