JP6727003B2 - Heating tester - Google Patents

Description

The present invention relates to a heating tester for testing a thermal fire detector.

BACKGROUND ART Conventionally, there is a heating tester that heats a fire sensor to perform a test in order to perform a test by operating a spot-type heat-sensitive fire sensor that detects a fire based on the heat of the fire.

The most popular heating tester is of the type that uses benzine and is heated by the heat of the catalytic reaction using platinum as a catalyst. It cannot be used. Therefore, a heating tester capable of heating the fire detector without using a combustible material has been devised, for example, one using hot water (see Patent Document 1) or one using the chemical reaction heat of slaked lime ( Patent Document 2). In addition, there is one that supplies electric power to a heater to heat it (see Patent Document 3 and Non-Patent Document 1).

Japanese Utility Model Publication No. 01-160596 Japanese Utility Model Publication No. 04-136792 Registered utility model No. 3042120

NKS-3 Heating/Smoke Tester (Catalog), [0nline], September 27, 2013, Nittan Corporation, [Search March 25, 2016], Internet <URL:http://www. nittan.com/download/pdf/k1105.pdf>

Although the heating testers of Patent Document 1 and Patent Document 2 described above can be used in a limited manner within a limited time, instead of a heating tester that uses a catalytic reaction, the entire building that is a fire protection target It did not allow for continuous testing in. Furthermore, it did not generate heat when and when it was needed.

The heating tester of Patent Document 3 uses a heater, but an electric wire for supplying electric power to the heater is exposed between the heating tester main body and its supporting rod. Therefore, if there is an obstacle around the fire detector to be tested or the surrounding space is narrow, the electric wire may be caught by the obstacle.

In the heating tester of Non-Patent Document 1 described above, a main body provided with a heating means and a support rod are connected by a hinge portion capable of fixing the angle in six steps, and a wire for supplying power is not exposed through the inside thereof. However, if the angle between the main body and the support rod does not match due to the surroundings of the fire detector to be tested, it is necessary to lower the tester once and reset the hinge angle, and repeat trial and error several times. There is a risk of being lost.

In view of the above circumstances, the present invention can repeatedly perform the fire detector operation test at any timing without using a combustible material, and also fixes the angle between the main body and the support rod. The purpose is to obtain a heating tester that can prevent electric wires from being caught in obstacles around the fire detector.

The present invention comprises a main body having a heating means for heating and actuating a heat-sensitive fire sensor, and a tester attaches the main body to the tip of a support rod supporting the fire sensor to perform an operation test. In the heating tester, the heating means includes a heating element formed of a heating wire, and a tubular body that houses the heating element and has both ends opened, and the main body has one end of the tubular body. From the heating means and the battery power source for supplying electric power for driving the blowing means, the battery power source is provided with the heating means and the blowing means. In the state of performing the operation test, the blower means is provided above the body so as to be close to the side of the heating means, and below the body than the heating means. The heating tester is characterized in that a space for accommodating the battery power source is formed therein .

Further, in the present invention, the heating means includes a heat radiation suppressing means, and the blower means is provided above the main body so as to be close to a side of the heating means, so that the battery power source is provided below the main body. It is a heating tester characterized by forming a space for storing.

Further, according to the present invention, the main body is provided with an opening for attaching and detaching the battery power source, a cover for closing the opening, and a lock member for preventing the battery power source from falling off. The heating tester is characterized in that a mechanism that does not close the cover unless it is in a locked state to prevent the falling off is provided.

The tubular body may be a tubular outer cylinder having both ends open, and an inner cylinder made of a heat-resistant material having both ends open and being housed inside the outer cylinder so as to be separated from the outer cylinder. The heating element is housed in the inner cylinder, and one opening of each of the inner cylinder and the outer cylinder can be used as an inlet for blowing air and the other opening can be used as an outlet.

According to the present invention, since the fire detector is heated by the hot air having the heating wire as the heat source, the fire detector operation test can be repeated at any timing without using a combustible material. Further, since an electric wire for supplying electric power to the heating tester main body from the outside is unnecessary, the angle between the main body and the support rod is not fixed, and the electric wire is not caught by an obstacle around the fire detector.

Therefore, according to the present invention, it is possible to repeat the operation test of the fire detector at any timing without using a combustible material, and without fixing the angle between the main body and the support rod, It is possible to obtain a heating tester that can prevent an electric wire from being caught in an obstacle around a fire detector.

Further, according to the present invention, since the heating means is provided with the heat radiation suppressing means, it is possible to provide the air blowing means near the side of the heating means. Further, since the blower means can be provided side by side above the main body together with the heating means, a space for accommodating the battery power source can be formed below the heating means and the blower means, that is, below the main body. Since a large space for accommodating the battery power supply can be secured inside the main body, the capacity of the battery power supply can also be increased.

Further, according to the present invention, the battery power source can be attached/detached from the opening of the main body, and the structure is such that the cover cannot be closed unless the lock member is in the locked state preventing the battery power source from falling off. Since the cover cannot be closed unless the power source is securely housed and fixed in the main body, it is possible to prevent the battery power source from being accidentally dropped.

An explanatory view showing an example of an embodiment of the present invention, showing an outline of a test device attached to the tip of a support rod, and showing a state when performing an operation test from directly below a fire detector attached to a ceiling. Is. 1 is a side view showing an example of an embodiment of the present invention, showing a side surface of a hood and a side wall side of a main body short side in a main body portion, in which a fire detector for performing an operation test is shown by a broken line inside the hood Is. It is a side view which shows an example of embodiment of this invention, and has shown the side surface of the hood and the side wall side of the main body long side in the main body part, and (a) shows the side provided with the outside air inlet. 3B shows the side where the side wall is provided with an indicator lamp or the like for indicating the operating state. An example of embodiment of this invention is shown, (a) in a hood and a main-body part is a top view, (b) is a bottom view. It is an enlarged view of FIG. 4A is a sectional view taken along the line AA of FIG. 4A, and FIG. 4B is an enlarged view of a main part of the sectional view. It is a BB line sectional view taken on the line of FIG. 4 (a).

First, the outline of the configuration of the heating tester 1 according to the present invention and the manner in which an operation test of the fire detector D is performed by the heating tester 1 attached to the tip of the support rod 5 will be briefly described with reference to FIG. explain. The fire detector D to be tested by the heating tester 1 is a heat-sensitive spot-type fire detector, and includes, for example, a constant temperature spot-type detector, a differential spot-type detector, and a compensation-type spot-type detector. It is a container etc.

The heating tester 1 includes a main body 2, a hood 3 provided on the top of the main body 2, and a bracket 4 that pivotally supports the main body 2 so as to support the main body 2 toward the fire detector D. It is attached to the tip of the support rod 5 for use. Then, for example, when performing an operation test of the fire detector D installed on the ceiling surface C, the tester H supports the main body 2 toward the fire detector D with the support rod 5, and the fire detector with the hood 3. While covering D, the upper end is brought into contact with the ceiling surface C, and an operation test is performed in that state (see FIG. 1). Instead of covering the entire fire detector D, the hood 3 may cover the periphery of the sensing portion of the fire detector D. According to the heating tester 1, details will be described later, but even when the operation test is performed directly below the fire detector D as shown in FIG. It is possible to directly see L.

Next, the configuration of the main body 2 and the hood 3, particularly the configuration of the heating tester 1, will be described in detail.

The main body 2 has a substantially rectangular parallelepiped shape, and an operating means for operating the fire detector D is housed inside. Shaft attachment portions 4c and 4d are provided above the center of gravity of the heating tester 1 on both side walls 2a and 2b on the long side, and both arm portions 4a and 4b of the bracket 4 having a substantially U-shape are attached to the shaft attachment portions 4c. , 4d. The main body 2 is pivotally supported by the bracket 4 so as to be rotatable around an axis along the short side direction. In addition, in the bracket 4, 4e is a connection part with the support bar 5, and the tip of the support bar 5 is detachably connected to the connection part 4e (see FIGS. 1 and 2).

The hood 3 has a bottomed, substantially cylindrical shape with an open upper end, and is provided on the top of the main body 2 as described above. At the time of an operation test, the upper end is brought into contact with the ceiling surface C, The fire detector D can be positioned inside the substantially cylindrical tubular portion 3a having the bottom portion 3b to cover the periphery thereof (see FIGS. 1 and 2). Here, in the case of the present embodiment, the tubular portion 3a and the bottom portion 3b are formed separately and are joined together. Specifically, the lower opening edge of the tubular portion 3a is fitted into the groove provided on the outer peripheral edge of the bottom portion 3b, and thereby the both are joined (see FIGS. 6 and 7). The formation of the hood 3 is not limited to this. For example, the hood 3 may be integrally formed. 3c is a hood cover that covers the entire circumference of the upper opening edge of the tubular portion 3a. Specifically, like the bottom portion 3b, it is formed separately from the tubular portion 3a, and the upper opening edge of the tubular portion 3a is fitted into the concave groove provided on the outer peripheral edge, and thereby joined to the tubular portion 3a. (See FIGS. 6 and 7). The formation of the hood cover 3c is not limited to this, and the hood cover 3c may be integrally formed with the tubular portion 3a, like the bottom portion 3b.

Further, in the present embodiment, the heating tester 1 is configured such that the bottom portion 3b of the hood 3 is formed of a translucent member (transparent or translucent member). Specifically, all of the bottom portion 3b is formed as a translucent member. In addition, a non-projecting portion that does not project directly below the bottom portion 3b of the hood 3 is provided on the side portion of the main body 2, and the side of the non-projecting portion is located directly below the translucent member 3b. It is assumed that a space S that does not block the line of sight to the operation confirmation lamp L having the light emitting region is formed in the peripheral portion of the fire detector D to be tested through the translucent member 3b. Specifically, the main body 2 is formed into a substantially rectangular parallelepiped shape as described above, and the flat side surface portions parallel to the lower side of the side walls 2a and 2b on the long side thereof are the non-projecting portions, and the side portions thereof are It is assumed that a space S is formed immediately below the translucent member 3b and does not block the line of sight from the tester H directly below to the operation confirmation lamp L via the translucent member 3b (FIGS. 1 and 2). reference).

Therefore, according to the heating tester 1, the tester H himself performs the test even from directly below the fire detector D through the space S on the side of the non-projecting portion of the main body 2 and the translucent member 3b. The operation confirmation lamp L of the fire detector D is visible. That is, the tester H himself can recognize the operation of the fire detector D during the test, and even one person can perform the operation test of the fire detector D (see FIGS. 1 and 2). Even if the operation confirmation light L is not located at the peripheral portion of the fire detector D, the light emitting region of the operation confirmation light L is at the peripheral portion of the fire detector D and corresponds to the light-transmissive member 3b. Even if the tester H is right under the fire detector, the light emission of the operation confirmation lamp L can be visually recognized even if the tester H exists even in part.

Further, the heating tester 1 has a substantially rectangular shape in which the main body 2 is projected directly below, and its short side is located inside the peripheral edge of the bottom portion 3b of the hood 3. Specifically, the main body 2 has a substantially rectangular parallelepiped shape, and all of the top 4 sides thereof are located inside the peripheral edge of the bottom 3b of the hood 3 (see FIG. 4b). According to this heating tester 1, the line of sight from the tester H directly below to the translucent member in the space S formed on the side of the side walls 2a and 2b which are the non-projecting portions of the main body 2 is not blocked. It is possible to secure the volume of the main body 2 with a sufficient size while securing the volume with a sufficient size.

Further, in the case of the present embodiment, a plurality of protrusions 3d, which are formed of an elastic body (e.g., elastomer), are provided on the outer periphery of the bottom 3b of the hood 3 and project outward (see FIGS. 4 and 5). These protrusions 3d can prevent the heating tester 1 from rolling. Further, it is possible to prevent the projections 3d from absorbing the shock and causing the shock to reach the inside of the heating tester 1.

Specifically, the plurality of protrusions 3d are formed to have corners at the tips and protrude outward, but the tips of the protrusions 3d may be rounded. Further, it is continuous in the circumferential direction so as to form a polygonal shape in a plan view, and has a shape in which four corners of a quadrangle are cut out in a substantially V shape in a plan view (FIG. 4 and FIG. (See FIG. 5). In addition, in the present embodiment, the plurality of protrusions 3d have a lightening portion, and have a shape that easily crushes against an external force and easily absorbs an impact.

Further, in the heating tester 1, the main body 2 is also provided with a shock absorbing member 2c made of an elastic body. The shock absorbing member 2c has a frame-like shape along the outer shape of the main body 2 and is provided at the bottom of the main body 2 (see FIG. 4b). This shock absorbing member 2c can also prevent an impact from being applied to the inside of the heating tester 1, and in particular, can prevent an impact from being applied to the inside of the main body 2.

Although the hood cover 3c is provided on the upper opening edge of the hood 3, the hood cover 3c may also be made of an elastic body, and the hood cover 3c may also be capable of absorbing shock.

Here, regarding the material of the hood 3, at least a part of the bottom portion 3b forming the space S immediately below may be made of a transparent member, but the bottom portion 3b is entirely made of a transparent member. May be Further, the entire hood 3 including the tubular portion 3a, the hood cover 3c, and the protrusion 3d may be made of a light-transmissive member. By doing so, the operation confirmation lamp can be visually recognized from a wide direction. It is preferable because it can be done. Further, the bottom portion 3b may be formed as a translucent member and an elastic body together with the protruding portion 3d. In that case, for example, it may be made of transparent or translucent silicone rubber. Similarly, the hood cover 3c may be made of transparent or translucent silicone rubber. The tubular portion 3a may be made of, for example, transparent or translucent plastic instead of being an elastic member.

Next, among the constitutions of the heating tester 1, particularly the constitutions of the heating means 6 and the blowing means 7 will be described in detail.

The heating tester 1 includes a heating unit 6 and a blowing unit 7 inside the main body 2 as an operating unit of the heat detector type fire detector D.

The heating means 6 includes a cylindrical outer cylinder 6a having both ends open, an inner cylinder 6b made of a heat-resistant cylindrical material having a cylindrical outer space 6a and a space inside the outer cylinder 6a, and both ends open. 6b has a heating element 6c formed of a heating wire. In this heating means 6, the downward opening of the outer cylinder 6a is used as the inlet 6d (between the outer cylinder 6a and the inner cylinder 6b), and the upward opening is defined as the outlet 6f (the outer cylinder 6a and the inner cylinder 6b). Between). The downward opening of the inner cylinder 6b is used as the inlet 6e, and the upward opening is used as the outlet 6g (see FIG. 6b). The heating means 6 is provided at the center of the upper portion of the main body 2. Further, a top opening 2d which communicates with a bottom opening 3f provided in a bottom 3b of the hood 3 attached to the top of the main body 2 and also communicates with the outlets 6f and 6g of the inner cylinder and the outer cylinder of the heating means 6 is provided. Has been. As a result, the high temperature air blown from the outlets 6f and 6g of the heating means 6 (particularly the outlet 6g of the inner cylinder 6b) is blown into the hood 3 through the top opening 2d of the main body 2 and the bottom opening 3f of the hood 3. It is supposed to be done.

The blower unit 7 blows the air sucked from the outside air introduction port 2e to the inlets 6d and 6e of the heating unit 6 (see arrow A1 in FIG. 6b), and from the inlet 6e of the inner cylinder 6b to the outlet 6g. The air is blown so as to pass through the inside of the inner cylinder 6 (see arrow A2), and the air is blown so as to pass between the outer cylinder 6a and the inner cylinder 6b from the inlet 6d of the outer cylinder 6a toward the outlet 6f. (Refer to the same arrow A3).

The heating means 6 and the blowing means 7 are provided as described above, and heat the fire detector D by applying the hot air that is heated by the heating element 6c and blows out from the inner cylinder 6b into the hood 3. On the other hand, the air blower 7 causes air to flow between the inner cylinder 6b and the outer cylinder 6a, so that the heat of the inner cylinder 6b is prevented from being transferred to the outer cylinder 6a, and the heat radiation from the outer cylinder 6a to the inside of the main body 2 is prevented. It is supposed to suppress.

Therefore, according to this heating tester 1, since the fire detector D is heated by the high temperature air using the heating wire as a heat source, the operation test of the fire detector D is repeated at any timing without using a combustible material. It can be carried out. Further, since heat radiation to the inside of the heating tester 1 is suppressed, the mounting density in the main body 2 can be increased, and the heating tester 1 can be downsized. Further, even if the heating output is increased, for example, even if the heating output is increased to such an extent that the fire sensor of the compensation rate system having an operating temperature of 150° C. can be operated, heat damage in the main body 2 can be prevented, It is possible to prevent the heat tester 1 from being damaged by heat.

In addition, in the present embodiment, the heating element 6c has a winding portion of the heating element 6c that is wound while being separated in the air blowing direction by the air blowing unit 7 and that generates a substantially annular heating region R (see FIG. 5). ing.

As a result, the air blown from the blowing means 7 to the inlet 6e of the inner cylinder 6b passes through the inner peripheral side R′ and the outer peripheral side R″ of the substantially annular heating region R, and the outlet of the inner cylinder 6b. Since 6 g is blown into the hood 3 as high temperature air having an annular high temperature distribution area to heat the fire detector D, it is possible to prevent the heating from concentrating on one point and burn the fire detector D. Can be prevented.

Further, in the case of the present embodiment, the blower unit 7 is located on the side of the heating unit 6, is provided inside the main body 2 in a direction along the side wall 2a of the main body 2, and is an example of a centrifugal fan that can be formed thinly. It is a turbo fan. Further, the blower means 7 which is the centrifugal fan has an air outlet 7c which blows out the air sucked from the air inlet 7a downward, and the air blown out from the air outlet 7c is provided with a ventilation passage 8 provided below. The air is blown to the air inlets 6d and 6e of the heating means 6 through the air (see arrow A1 in FIG. 6b).

As a result, it is possible to reduce the thickness of the main body 2 by forming the blower means 7 to the side of the heating means 6 while making the thickness thin. Further, since the heating means 6, the blowing means 7 and the like are concentrated on the upper portion of the main body 2, a space can be secured below them, and the space can be used as a mounting space for other components and members. .. For example, as will be described in detail later, it can be used as a storage space for the battery power source 12 that drives the heating unit 6, the blowing unit 7, and the like.

The blower unit 7 sucks air inside the main body 2 as an intake port, in addition to the first intake port 7a for sucking external air through the outside air inlet port 2e provided on the side wall 2a of the main body 2. The second intake port 7b may be provided.

As a result, the air inside the main body 2 can be discharged to the outside via the heating means 6, and the heat is prevented from being accumulated inside the main body 2, which also prevents the heat damage inside the main body 2. it can. As a result, the blower unit 7 attached to the side wall 2a of the main body 2 can be provided close to the side of the heating unit 6, and the thickness of the main body 2 can be reduced.

Here, in the present embodiment, the blower unit 7 is specifically configured by accommodating fins for blowing air in the centrifugal direction in a thin box-shaped fan case 7d, one side surface of which is the main body 2. It is provided so as to be close to or in contact with the side wall 2a. Further, the first intake port 7a is provided on one side surface of the fan case 7d so as to open toward the outside air introduction port 2e side, and when the second intake port 7b is provided, the first intake port 7a of the fan case 7d is provided. The other side surface is provided so as to open toward the heating means 6 side, and the exhaust port 7c is provided at the bottom surface so as to open toward the inlet 8a side which is one end opening of the ventilation passage 8. Has been. As described above, in the present embodiment, the turbo fan is used as the centrifugal fan that can be formed thin, but the present invention is not limited to this, and other centrifugal fans, such as a sirocco fan, blow air in various centrifugal directions. A blower can be used.

Further, the ventilation passage 8 is specifically provided so that the inlet 8a, which is an opening at one end thereof, is opened toward the exhaust port 7c side of the blower 7. The inlet 8a of the ventilation passage 8 may be provided so as to be in contact with the exhaust port 7c of the blower 7 so as to communicate therewith. Further, an outlet 8b which is the other end opening of the ventilation passage 8 is provided so as to be open toward both the inlets 6d and 6e of the heating means 6. Further, the ventilation passage 8 is provided so as to form a substantially U-shaped flow passage as a whole, and in the flow passage, a first deflecting portion that changes the wind direction from downward to sideward. 8c and a second deflecting portion 8d that changes from side to upward. Each of the deflecting portions 8c and 8d is formed as a curved surface to reduce air resistance. The outlet 8b may be provided with a rectifying means such as a net so that the air blown to the heating means 6 is equalized.

As described above, the heating means 6 has the inner cylinder 6b made of a heat-resistant material, but the inner cylinder 6b can be specifically made of, for example, ceramics or pottery. Further, as described above, the inner cylinder 6b is housed in the outer cylinder 6a, and air is flown between the outer cylinder 6a and the inner cylinder 6b, so that the inner cylinder 6b and the outer cylinder 6a are separated from each other. An air flow for heat insulation is generated, and heat radiation from the outer cylinder 6a to the inside of the main body 2 is suppressed. The outer cylinder 6a may be made of a metal material such as stainless steel, but may be made of a resin material having high heat resistance or a heat insulating material. By forming the outer cylinder 6a with a heat insulating material, the heat radiation from the inner cylinder 6b can be further blocked by the outer cylinder 6a, and the heat radiation from the outer cylinder 6a to the inside of the main body 2 can be further suppressed.

In the heating means 6, the heating element 6c has the winding portion for generating the substantially annular heating region R as described above. In the case of the present embodiment, the winding portion is arranged apart from the inner wall of the inner cylinder 6b and wound in a coil shape. It may be wound in another form, but by winding it in a coil shape, it is easy to process, and the winding portion for generating the substantially annular heating region R as described above is formed. Can be easily obtained.

Further, the heating tester 1 includes a printed circuit board 9 for controlling the heating means 6, the blowing means 7 and the like inside the main body 2. As described above, by blowing air between the outer cylinder 6a and the inner cylinder 6b as well, the heat radiation from the outer cylinder 6a can be suppressed, and further, the air inside the main body 2 is sucked by the blowing means 7. This can prevent heat from accumulating inside the main body 2. Therefore, even if the heating means 6 is provided inside the main body 2 as in the heating tester 1, heat damage to the printed circuit board 9 provided inside the main body 2 can be prevented.

Therefore, the printed circuit board 9 can be provided on the side opposite to the blowing unit 7 with the heating unit 6 interposed therebetween. That is, since the air blower 7, the heater 6, and the printed circuit board 9 are arranged side by side in the short side direction of the main body 2 in a concentrated manner to the space on the top side, a large space is provided below the main body 2. Can be secured. Then, the lower space can be used as a storage space for various components such as the battery power supply 12.

Further, since the heating tester 1 can prevent heat damage to the components inside the main body 2 as described above, even if the battery power source 12 and the like are stored inside the main body 2, the heat It can prevent harm. Further, the printed circuit board 9 is provided on the side wall 2b opposite to the side where the air blowing means 7 is provided, with the heating means 6, which is preferably arranged at the center for heating the fire detector D, interposed therebetween. Alternatively, they are provided close to each other along the side wall 2b. This also makes it possible to reduce the thickness of the main body 2.

Further, the heating tester 1 includes a proximity sensor 10 on the top of the main body 2, and when the distance from the fire sensor D becomes a predetermined value or less, the heating element 6c of the heating means 6 is energized to start the test. Alternatively, the test may not be started at any other time without energization.

As a result, it is possible to prevent the heating tester 1 from being unnecessarily energized before approaching the fire detector D to be tested, and thus it is possible to make the battery power source last longer and perform repeated tests. The proximity sensor 10 is provided because, as described above, it is possible to prevent heat damage to the components inside the main body 2. In the present embodiment, the proximity sensor 10 is provided on the side of the heating means 6 (on the long side of the main body 2), and the sensor opening formed on the top of the main body 2. The sensor portion is exposed from the window 2j toward the center of the top of the hood 3.

Further, the heating tester 1 is provided with an indicator lamp 11 for displaying the operating status thereof. The indicator lamp 11, together with the main power switch 13 and the operation switch 14, is provided on the side surface of the side wall 2b on the side where the printed circuit board 9 is provided inside. As a result, the printed circuit board 9 that needs wiring and the like, the indicator lamp 11, the main power switch 13, the operation switch 14, and the like can be provided in close proximity to each other, and can be integrated with the printed circuit board 9.

Further, although not shown, it is possible to further include output varying means for varying the output of electric power from the battery power source 12 that drives the heating element 6c of the heating means 6. By providing such an output varying means to change the magnitude of the output or the rate of increase in output according to the operating temperature of the fire detector D to be tested, the fire detector D for high temperature operation, for example, the operating temperature is 150° C. Even with the compensation rate type constant temperature type sensor, it is possible to obtain an operable output.

The indicator lamp 11 is in a mode in which the tester H can grasp the operating conditions of the proximity sensor 10, the output condition of the output varying means, and the like according to each operating condition of the heating tester 1. It can be displayed. As a result, the tester H can be appropriately informed of whether or not the test is being executed, the setting status of the output, etc., and it is possible to prevent an operation error and prevent the fire sensor from being damaged by being burnt or the like.

Next, the battery power supply 12 inside the main body 2 in the configuration of the heating tester 1 will be described in detail.

The heating tester 1 includes a heating means 6 and a blowing means 7 as an operating means of the heat-sensitive fire detector D, and a battery power source 12 for supplying electric power for driving them, inside the main body 2.

As a result, the fire sensor D is heated by the high-temperature air that uses the heating element 6c, which is a heating wire, as a heat source. Therefore, an operation test of the fire sensor D can be repeatedly performed at any timing without using a combustible material. it can. Further, since the electric wire for supplying electric power is not exposed between the bracket 4 that supports the main body 2 from the outside and the inside of the main body 2, even if there is an obstacle around the fire detector D, The wire will not get caught.

Therefore, according to the heating tester 1, the operation test of the fire detector D can be repeatedly performed at any timing without using a combustible substance, and the electric wire is attached to the obstacle around the fire detector D. You can prevent getting caught.

Further, in the case of the present embodiment, as described above, the blower means 7 is provided inside the main body 2 beside the heating means 6. A printed circuit board 9 is also provided. Then, the heating means 6, the blowing means 7 and the printed circuit board 9 which are provided side by side, and the ventilation path which is located below the heating means 6 and the blowing means 7 and connects the blowing means 7 and the heating means 6 to each other. A battery power source 12 is housed below the battery 8.

As a result, members other than the battery power source 12, such as the heating unit 6, the air blowing unit 7, and the printed circuit board 9, can be centrally arranged in the space on the top side inside the main body 2, and the battery power source 12 below it can be housed. A large space can be secured, and the capacity of the battery power supply 12 can be increased.

Further, in the present embodiment, an opening 2f for attaching and detaching the battery power source 12 is provided at the bottom of the main body 2. As a result, the battery power source 12 can be attached and detached from the bottom opening 2f and can be easily detached by utilizing gravity, so that the work can be facilitated.

A cover 2g for opening and closing the bottom opening 2f, a lock member 2h for preventing the power supply battery 12 from falling off, and a lock member 2i for holding the cover 2g in a closed state are provided on the bottom of the main body 2. The cover 2g and the battery lock member 2h cooperate with each other to form a mechanism in which the cover 2g cannot be closed unless the battery power supply lock member 2h is in a locked state that prevents the battery power supply 12 from falling. As a result, the cover 2g cannot be closed unless the battery power supply lock member 2h securely stores and fixes the battery power supply 12 in the main body 2, so that the battery power supply 12 is imperfectly fixed and accidentally falls. Prevent that. That is, it constitutes a foolproof mechanism.

The battery power source 12 can be a secondary battery such as a lithium-ion battery, a nickel-hydrogen storage battery, or a nickel-cadmium battery, and can be a battery pack containing an assembled battery of these secondary batteries. By using the battery pack, the battery power supply 12 can be arbitrarily and easily replaced as needed.

Although the embodiments of the present invention have been described with reference to FIGS. 1 to 7, the present invention is not limited to the above embodiments and examples, and various modifications can be made within the scope of the invention. Is.

For example, the heating means 6, the blowing means 7 and the battery power source 12 are housed in the main body 2, but the battery power source 12 is heated so that the electric wire for power supply is not exposed to the outside from the main body 2. It is desirable that the means 6 and the blowing means 7 are connected to the inside of the main body 2. Further, the air blower 7 causes air to flow between the inner cylinder 6b and the outer cylinder 6a, so that heat of the inner cylinder 6b is prevented from being transferred to the outer cylinder 6a, and heat radiation from the outer cylinder 6a to the inside of the main body 2 is prevented. Although the heat radiation suppressing means is formed, the heat radiation suppressing means is not limited to this, and the heat radiation suppressing means may be formed by another method. Since the mounting density inside the main body 2 can be increased by providing such heat radiation suppressing means, the air blowing means 7 can be provided above the main body 2 in the vicinity of the side of the heating means 6. By doing so, a space for accommodating the battery power source 12 can be formed below the main body 2. Further, although the opening 2f for attaching and detaching the battery power source 12 is provided in the bottom portion of the main body 2, it is not limited to this and may be provided in any position of the main body 2. At this time, the battery power supply lock member 2h constitutes a mechanism in which the cover 2g cannot be closed unless the battery power supply 12 is locked so as to prevent the battery power supply 12 from falling off. The cover 2g cannot be closed unless it is securely stored and fixed, so that the battery power source 12 is prevented from being imperfectly fixed and accidentally falling off. In addition, all of the four points of the substantially rectangular top formed when the main body 2 of the substantially rectangular parallelepiped is projected downward are included in the shape formed when the hood 3 is projected downward, and The space S that does not block the line of sight from the tester H to the operation confirmation lamp L having the light emitting area at the peripheral edge of the fire detector D to be tested through the translucent member 3b is the side of the four sides of the substantially rectangular shape. It may be formed on one side. Alternatively, even if all of the four points of the substantially rectangular top portion formed when the substantially rectangular parallelepiped main body 2 is projected downward are not included in the shape formed when the hood 3 is projected downward, A part of the long side of the substantially rectangular shape is positioned inside the shape formed when the hood 3 is projected downward, and the fire of the test target from the tester H directly below through the translucent member 3b. A space S that does not block the line of sight to the operation confirmation lamp L, which is provided with the light emitting region in the peripheral portion of the sensor D, may be formed on the side of the long side. Further, the protrusion 3d provided on the outer periphery of the hood 3 may have a shape continuous in the circumferential direction so as to form a polygonal shape in a plan view. For example, the four corners of a quadrangle in a plan view are substantially V-shaped. It may have a shape like a notch. Further, the shock absorbing member 2c provided on the outer periphery of the main body 2 may be provided on the outer periphery of the bottom portion of the main body 2, or may have a frame-like shape along the outer periphery of the main body 2, or an elastomer or the like. It may be formed of an elastic body. The tubular portion 3a of the hood 3 may have an enlarged diameter or may have a bellows structure that is vertically contractible. Further, the hood 3 should be close to the fire detector D and cover at least the periphery of the sensing portion of the fire detector D without contacting the mounting surface of the fire detector D to form a closed space. May be. Further, the battery power source 12 may be a primary battery such as a dry battery instead of a secondary battery, may be a plurality of batteries to be housed individually instead of an assembled battery, or may be a fuel cell. Good. The battery power source 12 may be provided outside and connected by a cable without being housed inside the main body 2, or may be housed inside the support rod 5. Further, the heating element 6c is not limited to the coil-shaped winding, but may be a plurality of layers of regular polygonal windings, and may be a cylindrical heating element that does not use a heating wire. .. Further, the blower means 7 uses a centrifugal fan having a blowout port that deflects the air sucked from the intake port at a right angle and blows it out, but the present invention is not limited to this, and an axial fan or the like that does not deflect the blower direction. It may be another fan of. In addition, it is equipped with an indicator lamp that displays the situation in a manner that allows the operator to grasp the operating conditions of the tester, including the output change condition of the output varying means, the output condition, and the operation condition of the proximity sensor. The operation status of the tester may be easily grasped by the tester. Further, the indicator lamp for displaying the output status, the operation status of the proximity sensor, and the like may also be used. Further, in order to change the temperature and the temperature rise of the hot air blown out, the magnitude of the output energizing the heating element 6c or the output increase rate is variable, but the voltage output to the heating element 6c may be variable. The pulse rate output to the heating element 6c may be variable. Further, in order to change the temperature and temperature rise of the hot air blown out, instead of changing the output of the heating element 6c, the air volume of the blowing means 7 may be changed, and the voltage output to the blowing means 7 may be changed. Alternatively, the rate or the like of the pulse output to the blower 7 may be variable. These are provided as temperature varying means for varying the temperature of the hot air or the rate of temperature rise. Further, the output varying means and the temperature varying means may be operated by a changeover switch or a volume. Further, when applied to the smoke tester, the actuation means for actuating the fire detector is not limited to the one that injects the aerosol using liquid paraffin, and may be another aerosol. Further, the test apparatus of the present invention that allows the tester H directly below to visually recognize the confirmation light L of the fire detector D to be tested is a spot type fire detector having an operation confirmation light. The fire detector to be tested is not limited to the heat-sensitive type or the smoke-sensing type, and may be a flame detector that detects the radiation from a flame, or an odor, etc. It may be a fire detector based on the detection principle.

1: Heating tester 2: Main body 2a: Long side sidewall 2b: Long side sidewall 2c: Impact absorbing member 2d: Top opening 2e: Outside air inlet 2f: Bottom opening 2g: Bottom cover 2h: Battery lock member 2i: Lock member for cover 2j: Open window for sensor 3: Hood 3a: Cylindrical part 3b: Bottom part 3c: Hood cover 3d: Projection part 3f: Bottom part opening 4: Bracket 4a: Arm part 4b: Arm part 4c: Shaft attachment Part 4d: Shaft mounting part 4e: Connection part 5: Support rod 6: Heating means 6a: Outer cylinder 6b: Inner cylinder 6c: Heating element 6d: Inlet (outer cylinder side) 6e: Inlet (inner cylinder side) 6f: Outlet (outer cylinder side)
6g: Blow-out port (inner cylinder side) 7: Blower means (centrifugal fan) 7a: First intake port 7b: Second intake port 7c: Exhaust port 7d: Fan case 8: Ventilation passage 8a: Inlet 8b: Outlet 8c : 1st deflection part 8d: 2nd deflection part 9: Printed circuit board 10: Proximity sensor 11: Indicator light
12: Battery power 13: Main power switch 14: Operation switch C: Ceiling surface D: Fire detector H: Tester L: Operation confirmation light S: Space R: Annular heating area R': Inner circumference heating area R'' : Outer heating area A1 to A3: Air flow

Claims (1)

A heating tester including a main body having a heating means for heating and operating a heat-sensitive fire detector, the tester attaching the main body to the tip of a support rod supporting the fire detector to perform an operation test. There
The heating means has a heating element composed of a heating wire, and a tubular body that houses the heating element and has both ends open.
The main body includes a blowing unit that blows high-temperature air from one end of the tubular body to the other end, and a battery power source that supplies electric power for driving the heating unit and the blowing unit. The power source is connected to the heating means and the air blowing means inside the main body ,
A space for accommodating the battery power source below the main body with respect to the heating means, in the state of performing the operation test, the blower means is provided near the side of the heating means and above the main body. A heating tester characterized by being formed .

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