JP6219137B2 - Imaging device - Google Patents

Description

  The present invention relates to a photographing apparatus for performing a photographing operation of a lever in a lever series.

  In overhead power transmission facilities, insulators are often used for insulation. In the example shown in FIG. 11, two insulator series 10 are installed so as to hang in a V shape from a portion projecting laterally from the steel tower 2. As shown in FIG. 12, the insulator series 10 is formed by connecting a plurality of suspended insulators 3 in series.

  An example of the hanging insulator 3 is shown in FIG. The hanging insulator 3 is formed by joining connecting metal fittings with cement or the like on both front and back sides of the cap portion 301 which is a cap-shaped porcelain insulator. A metal cap portion 302 is placed on the front side of the cap portion 301. A connecting pin 303 is attached to the back side of the cap 301 so as to protrude. The connection pin 303 is for connecting to the cap part of the suspension insulator adjacent to the lower side. Concentric folds are provided on the back side of the cap 301. In places where salt damage, dust, etc. are intense, a salt-resistant suspension insulator having a shape in which the folds on the back side of the cap 301 are deeper than a normal suspension insulator is also used. A salt-resistant hanging insulator is also a type of hanging insulator.

  The individual suspended insulators 3 constituting the insulator series 10 may become soiled due to adhesion of dust and salt in the air. If the shade 301 porcelain insulating part of the hanging insulator 3 becomes too dirty, current can flow through the dirt adhering to the surface of the porcelain insulating part, so that the insulation performance is reduced and the role of the insulator cannot be sufficiently fulfilled. Moreover, since the connecting metal fitting hidden behind the shade is a metal part, it may be corroded over many years of use.

  Thus, it is important to inspect the insulators contained in the insulators as part of the maintenance.

  Such insulators are often installed at high places on the tower, and work on the tower is done while avoiding the danger of falling. was there. Moreover, since it is necessary to avoid power outages as much as possible, it is required to perform the work in a live state. Especially in high-voltage power transmission lines, even if it should be insulated by insulators, there is a risk of electric shock due to the high voltage caused by the charge generated by induction. It was done.

  When inspecting the dirt of the insulator, it is necessary to inspect not only the front side but also the back side of the insulator. For this purpose, an operator who has gone as close as possible to the point to be inspected holds the insulation rod with the photographing device necessary for the work in his hand and operates the insulation rod manually to withstand the necessary device. It has been considered to work near a desired location on the tensioning device.

  Regarding an operator holding and operating an operation rod provided with an imaging device at the tip of an insulating member, JP 2011-87347 A (Patent Document 1) and “1. Overhead power transmission maintenance camera” Development of Inspection Device ”, Electrical Review, Vol. 95, No. 1, issued on Jan. 20, 2010, page 103 (Non-patent Document 1).

  An example of an inspection device that photographs the connecting part of insulators using a digital camera attached to the tip of an insulating rod is “4. Overhead metal fitting inspection device (insulator connecting part inspection device)”, Electric Review, 94, No. 12, issued December 10, 2009, page 28 (Non-Patent Document 2).

JP 2011-87347 A

"1. Development of a camera inspection device for overhead power transmission maintenance", Electrical Review, Vol. 95, No. 1, published on January 20, 2010, p. 103 "4. Overhead Wire Inspection System (Insulator Connection System Inspection System)", Electrical Review, Vol. 94, No. 12, issued on December 10, 2009, page 28

  In the case of working with an insulating rod, the length of the insulating rod can be extended by adding, but if the worker actually works with the insulating rod alone on a limited scaffold on the steel tower, However, there is a limit to the length that can be stably stretched, and therefore there is a limit to the range in which shooting can be performed.

  In addition, when working with an insulation rod in hand, the device may be shaken at the tip of a long rod due to camera shake or wind, making it difficult to align the device with the desired work location, making it possible to stably and accurately shoot the insulator. It was difficult to do. Forcing such a difficult work requiring attention in a high place and a high voltage environment was a heavy burden on the operator.

  In the apparatus described in Non-Patent Document 2, a digital camera can be linked to a personal computer via a wireless LAN, and operations such as zooming, focusing, and photographing can be performed while checking images on the personal computer screen. However, there is a problem that strong electromagnetic waves are generated by induction in the space near the insulator series, and wireless communication such as wireless LAN may be hindered in this space. Therefore, it is desirable that the photographing apparatus can be positioned so as to have a relatively preferable positional relationship with respect to the insulator without relying on wireless communication.

  Therefore, an object of the present invention is to provide an imaging apparatus that can easily and stably perform an inspection operation of an insulator included in an insulator series without relying on wireless communication.

  In order to achieve the above object, an imaging apparatus according to the present invention is an insulator formed by connecting in series a plurality of suspension insulators having a cap portion having a front side and a back side and a cap portion protruding to the front side of the cap portion. An imaging device for imaging a connecting portion of a series of the hanging insulators, wherein the main body portion is one of a plurality of hanging insulators extending from the body portion and included in the insulator series. A pair of support arms for contacting the front side surface of the shade portion of the first suspension insulator so as to sandwich the cap portion of the first suspension insulator, and adjacent to the first suspension insulator on the back side of the shade portion of the first suspension insulator A pair of shooting arms extending from the main body so as to sandwich the cap portion of the second hanging insulator connected in this way, and one or more cameras installed to face the shooting arm pair diagonally upward, The camera arm pair includes the main body. A contact portion disposed so as to contact the first suspension lever when approaching the lever chain within a predetermined distance; and the camera when the contact portion is pressed against the first suspension lever. A shutter cooperation mechanism including a shutter operation unit arranged to apply a shutter operation.

  According to the present invention, the shutter cooperation mechanism allows a good photograph to be taken with a high probability with a simple operation, so that it is easy to check the insulators included in the insulators without relying on wireless communication. An imaging apparatus that can be stably and safely performed can be realized.

It is a perspective view of the imaging device in Embodiment 1 based on this invention. It is a perspective view of a mode that the imaging device in Embodiment 1 based on this invention was attached to the insulator series. It is the figure which looked at a mode that the imaging device in Embodiment 1 based on this invention was attached to the insulator from the back of the main-body part. It is a top view of the imaging device in Embodiment 1 based on this invention. It is a partial side view of the imaging device in Embodiment 1 based on this invention. It is a front view of the camera with which the imaging device in Embodiment 1 based on this invention is equipped. It is a partial side view which shows the camera vicinity of the imaging device in Embodiment 1 based on this invention. It is explanatory drawing which shows the state which the shutter cooperation mechanism with which the imaging device in Embodiment 1 based on this invention is equipped has not pushed the shutter button of the camera. It is explanatory drawing which shows the use condition of the imaging device in Embodiment 1 based on this invention. It is explanatory drawing which shows the use condition on the steel tower of the imaging device in Embodiment 1 based on this invention. It is a partial front view of the steel tower provided with the insulator series based on a prior art. It is the elements on larger scale of the insulator series based on a prior art. It is a side view of the suspension insulator based on a prior art.

(Embodiment 1)
(Constitution)
With reference to FIGS. 1-8, the imaging device in Embodiment 1 based on this invention is demonstrated. A perspective view of the photographing apparatus 101 is shown in FIG. A state in which the photographing apparatus 101 is attached to the insulator series 10 is shown in FIG. FIG. 3 shows a state in which the photographing apparatus 101 in this state is viewed from directly behind. In FIG. 2 and FIG. 3, an insulating rod that is connected to the photographing apparatus 101 and used for moving the photographing apparatus 101 is not shown. A plan view of the photographing apparatus 101 is shown in FIG. FIG. 5 shows a state in which a part of the photographing apparatus 101 is viewed from the side so that the state where the photographing apparatus 101 is attached to the insulator series 10 can be seen.

  The photographing apparatus 101 according to the present embodiment has the above-described suspension of the insulator series 10 formed by connecting in series a plurality of suspension insulators having a cap portion having a front side and a back side and a cap portion protruding to the front side of the cap portion. A photographing apparatus for photographing a connecting portion of the insulators, the first hanging insulator 3a being one of a main body 30 and a plurality of hanging insulators extending from the main body 30 and included in the insulator series. A pair of support arms 31 for contacting the front side surface of the shade portion of the first suspension insulator 3a so as to sandwich the cap portion of the first suspension insulator 3a, on the back side of the shade portion of the first suspension insulator 3a, adjacent to the first suspension insulator 3a. A photographing arm pair 32 extending from the main body 30 so as to sandwich the cap portion of the connected second suspension insulator 3b, and one or more cameras 35 installed to face the photographing arm pair 32 obliquely upward. .

  In the photographing apparatus 101, the support arm pair 31 is formed as an integral part made of a substantially U-shaped resin. The photographing arm pair 32 is also formed as an integral part made of a substantially U-shaped resin. The main body 30 is also formed as a resin part. The main body 30, the support arm pair 31, and the imaging arm pair 32 are connected by being bolted through metal auxiliary parts.

  The imaging apparatus 101 shown here includes two cameras 35 as shown in FIGS. 1 to 4, but this is just an example, and even if the number of cameras is one, three or more. It may be.

  The imaging arm pair 32 is provided with an LED device 42 for illuminating the side to be photographed by the camera 35. The same number of LED devices 42 as the cameras 35 are installed corresponding to each of the cameras 35. The LED device 42 is installed on the photographing arm pair 32 so as to face obliquely upward. Each of the LED devices 42 can turn on / off illumination by appropriately operating a switch (not shown).

  As shown in FIGS. 2 and 3, a locking portion 41 is provided on the back surface of the main body portion 30. Details of the locking portion will be described later.

  As shown in FIGS. 1, 4, and 5, the photographing apparatus 101 includes a tongue-like member 39 that contacts the lower end of the shade portion of the first hanging insulator 3 a. The imaging device 101 is positioned with respect to the first suspension lever 3a so that the tongue portion 39 and the support arm pair 31 sandwich the cap portion of the first suspension lever 3a from above and below. The tongue-like member 39 is preferably made of resin.

  FIG. 6 shows a state where the camera 35 provided in the photographing arm pair 32 of the photographing apparatus 101 is taken out alone. The camera 35 is a commercially available small digital camera including a shutter button 35h and a lens 35i. As the camera 35, it is preferable to select a model having as many resin portions as possible among commercially available digital cameras. As the camera 35, it is preferable to select a model that is as thin and light as possible. FIG. 7 shows a view of the structure in the vicinity of the camera 35 from the side of the photographing apparatus 101. The photographing arm pair 32 includes a contact portion 61 disposed so as to contact the first suspension lever 3a when the main body portion 30 comes close to the lever series 10 within a certain distance, and the contact portion 61 has a first suspension portion. A shutter cooperation mechanism 36 including a shutter operation unit 62 arranged to apply a shutter operation to the camera 35 when pressed against the lever 3a is provided. The shutter cooperation mechanism 36 includes a bent arm-shaped portion. This bending degree is, for example, 45 °. The shutter cooperation mechanism 36 is rotatably supported by a shutter cooperation mechanism support portion 38. Another state of the shutter cooperation mechanism 36 is shown in FIG. FIG. 8 shows a state in which the contact portion 61 is not yet pressed against the first suspension insulator 3a. When the abutment portion 61 is pressed against the first suspension lever 3a, the shutter cooperation mechanism 36 rotates clockwise in FIG. 8, so that the shutter operation portion 62 is moved to the shutter button of the camera 35 as shown in FIG. 35h is to be pushed. The shutter cooperation mechanism 36 is urged by a spring (not shown) in a direction in which the shutter operation unit 62 moves away from the shutter button 35h. The operation of the shutter operation unit 62 pressing the shutter button 35h is performed against the bias of this spring. For smooth operation, it is preferable that the contact portion 61 has a cylindrical shape as shown in FIGS.

(Action / Effect)
In this embodiment, since the photographing apparatus 101 has the above-described configuration, the photographing apparatus 101 can be used with the insulating rod 5 attached to the tip as shown in FIG. That is, the operator operates with the insulating rod 5 so that the photographing apparatus 101 is brought close to the insulator series 10 and embraces the first suspended insulator 3a which is one of the plurality of suspended insulators 3 included in the insulator series 10. Insert into. This insertion is performed from a direction substantially perpendicular to the longitudinal direction of the insulator series 10. In the example shown in FIG. 9, it is inserted into the insulator series 10 from substantially the upper side in the figure.

  As a result of inserting the photographing apparatus 101 as shown in FIG. 9, the suspension insulator 3a hits the contact portion 61 as shown in FIG. 7, and the shutter button 35h of the camera 35 is naturally moved by the action of the shutter cooperation mechanism 36. Pressed. As a result, the back side of the first hanging insulator 3a is photographed by the camera 35. At this time, the camera 35 can set the photographing apparatus 101 in advance so as to have an optimum direction and optimum distance for photographing the back side of the hanging insulator 3, so that the operator can work on the site. Sometimes, there is no need to worry about camera zoom adjustment, focus adjustment, etc., but it is only necessary to insert and press the photographing device 101 against the target hanging insulator 3 so that the burden on the operator is reduced. It is greatly reduced.

  Here, among the insulator series 10, the second one from the end is called the first suspended insulator 3a, and the third one from the end is called the second suspended insulator 3b, but this is a provisional convenience. The photographing operation can be performed in the same manner for any of the hanging insulators 3 included in the insulator series 10. When inspecting the insulator series 10, for example, a method of use is considered in which the photographing apparatus 101 is inserted one by one from the end in order to photograph each of the suspended insulators 3 included in the insulator series 10. It is done.

  If the imaging device 101 is used, for example, as shown in FIG. 10, it is possible to inspect the insulator series 10 on the steel tower 2. An operator (not shown) holds the insulating rod 5 and inserts the photographing apparatus 101 into the lever series 10. In this way, the operator can perform inspection work on the insulator series 10 via the insulating rod 5 while being at a safe position away from the insulator series 10.

  The camera 35 of the photographing apparatus 101 can take a good photograph with a high probability by a simple operation by the shutter cooperation mechanism 36, and therefore does not need to rely on wireless communication.

  Therefore, in the present embodiment, it is possible to realize an imaging apparatus that can easily and stably perform the inspection work of the insulator included in the insulator series without relying on wireless communication.

  In the present embodiment, each main part has been described as being made of resin. The reason for using resin is to make an insulator. The resin to be employed is not particularly limited, but may be, for example, a nylon resin. For example, MC nylon (R) may be used as the nylon resin. As shown in the present embodiment, it is preferable that all of the main body 30, the support arm pair 31, the photographing arm pair 32, and the shutter cooperation mechanism 36 are mainly made of an insulator. These parts may be made with a metal frame, etc., but in that case, in order to avoid the destruction of the camera due to the induction caused by the high voltage around the insulator, the camera is a sealed case mainly made of insulator It is preferable to install in the state accommodated in the. As such a sealed case, a commercially available sealed camera case made of resin for underwater photography can be used.

  It is preferable that a bumper member 37 that protects the camera 35 from collision with the suspension lever 3 is disposed at the tip of the photographing arm pair 32. By providing such a bumper member 37, the camera 35 is attached to the suspension insulator 3 even when the photographing apparatus 101 is inserted in a state of being shifted from the position where it should originally be inserted with respect to the first suspension insulator 3 a. Since the bumper member 37 collides with the suspension insulator 3 before the collision, the camera 35 can be prevented from colliding with the suspension insulator 3. The bumper member 37 is preferably made of resin.

  As shown in FIG. 2 and FIG. 3, the main body 30 preferably includes a locking portion 41 to which a work bar can be connected on the side opposite to the lever series 10. The working bar is, for example, the insulating bar 5 as shown in FIGS. In FIGS. 2 and 3, the locking portion 41 is drawn so as to grow directly from the main body portion 30, but actually, the locking portion 41 is not necessarily integrally molded with the main body portion 30. The locking part 41 may be made of metal. The locking portion 41 may be formed in advance as a metal part and attached to the main body 30 with a bolt or the like. The locking portion 41 shown here has an annular portion as an example. However, the shape of the locking portion 41 shown here is merely an example, and is not limited to this shape. The locking part 41 may have a more complicated structure and may include a movable part.

  In addition, the said embodiment disclosed this time is an illustration in all the points, Comprising: It is not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and includes all modifications within the scope and meaning equivalent to the terms of the claims.

  2 Steel tower, 3 insulators, 10 insulator series, 30 main body part, 31 support arm pair, 32 photographing arm pair, 35 camera, 35h shutter button, 35i lens, 36 shutter cooperation mechanism, 37 bumper member, 38 shutter cooperation mechanism support part, 39 Tongue member, 41 Locking portion, 42 LED device, 61 Abutting portion, 62 Shutter operation portion, 101 photographing device, 301 cap portion, 302 cap portion, 303 connecting pin.

Claims (4)

Photographing for photographing the connecting portion of the suspension insulators formed by connecting a plurality of suspension insulators having a cap portion having a front side and a back side and a cap portion protruding to the front side of the shade portion in series A device,
The main body,
Extending from the main body and abutting on the front side surface of the cap portion of the first suspended insulator so as to sandwich a cap portion of a first suspended insulator that is one of a plurality of suspended insulators included in the insulator series A pair of support arms for,
A pair of photographing arms extending from the main body so as to sandwich a cap portion of a second suspended insulator connected adjacent to the first suspended insulator on the back side of the shade portion of the first suspended insulator;
One or more cameras installed so as to face diagonally upward to the pair of photographing arms,
The photographing arm pair includes a contact portion disposed so as to contact the first suspension lever when the main body portion comes close to the lever series within a certain distance, and the contact portion includes the first suspension arm. An imaging apparatus provided with a shutter cooperation mechanism including a shutter operation unit arranged to apply a shutter operation to the camera when pressed against an insulator.   The imaging apparatus according to claim 1, wherein the main body, the support arm pair, the imaging arm pair, and the shutter cooperation mechanism are all mainly made of an insulator.   The imaging device according to claim 1, wherein a bumper member that protects the camera from collision with the suspension lever is disposed at a tip of the imaging arm pair.   The imaging device according to any one of claims 1 to 3, wherein the main body portion includes a locking portion to which a work bar can be connected on a side opposite to the lever series.

Images