Dust-proof cover removal device

Abstract

To obtain a dust-proof cover removal device capable of removing a dust-proof cover of a fire sensor without using a long-sized operation support rod.SOLUTION: A dust-proof cover removal device 1 of a fire sensor includes: an unmanned flying body 2 to move in the sky by a remote operation or an autonomous operation; and a removal tool 3 attached to the unmanned flying body 2. The removal tool 3 is configured to be inserted between the dust-proof cover for covering at least a part of the fire sensor and an installation place of the fire sensor, so as to remove the dust-proof cover from the fire sensor.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a dustproof cover removal device for removing a dustproof cover of a fire detector. [Background technology]

[0002] Fire detectors are installed on the ceilings or walls of buildings, but during construction work on a building, the fire detectors can become dirty due to dust or particles that are generated. For example, Patent Document 1 discloses a dust cover that is attached to the fire detector to protect it from such dirt, and a detacher for attaching and detaching the dust cover. A long operating support rod that reaches the ceiling is connected to the detacher described in Patent Document 1, and a worker holds the operating support rod to remove the dust cover from the fire detector. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6982425 Summary of the Invention [Problem to be solved by the invention]

[0004] However, depending on the height of the ceiling, the operating support rod that reaches the ceiling can be 4 to 6 meters long, and some ceilings require even longer operating support rods. For example, operating a 6-meter operating support rod requires considerable strength. It is also difficult to visually inspect the area around a fire detector that is 6 meters high. For this reason, when trying to remove the dust cover of a fire detector installed on a high ceiling using an operating support rod, the fire detector can be damaged or the operation can take a long time.

[0005] The present invention has been made in light of the above-mentioned circumstances, and aims to provide a dustproof cover removal device that can remove the dustproof cover of a fire detector without using a long operating support rod. [Means for solving the problem]

[0006] The dustproof cover removal device of the present invention comprises an unmanned aerial vehicle, a dustproof cover attached to the unmanned aerial vehicle and covering at least a portion of a fire detector, and a removal tool inserted between the installation location of the fire detector to remove the dustproof cover from the fire detector. [Effects of the Invention]

[0007] According to the present invention, since a removal tool is attached to the unmanned aerial vehicle, the dust cover of the fire detector can be removed without using a long operating support rod. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic front view of a dustproof cover removal device according to a first embodiment. [Figure 2] 1 is a schematic side view of a dustproof cover removal device according to a first embodiment. [Figure 3] 1 is a schematic top view of a dustproof cover removal device according to a first embodiment. FIG. [Figure 4] 5A to 5C are diagrams illustrating the operation of the dustproof cover removal device according to the first embodiment. [Figure 5] FIG. 10 is a schematic front view of a dustproof cover removal device according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiments, and various modifications are possible without departing from the spirit of the present invention. Furthermore, the present invention includes all possible combinations of the configurations shown in the following embodiments. Furthermore, the configurations shown in the drawings are examples of the present invention, and the present invention is not limited to the aspects shown in the drawings. Furthermore, in each drawing, parts with the same reference numerals are the same or equivalent, and this is common throughout the entire specification.

[0010] Embodiment 1 In this embodiment, a dustproof cover removal device 1 that removes a dustproof cover attached to a fire detector will be described. Here, the dustproof cover protects the fire detector attached to the ceiling or wall of a building from dust or particles that are generated during construction work on the building. The dustproof cover is removed from the fire detector after the construction work is completed.

[0011] Fig. 1 is a schematic front view of a dustproof cover removal device 1 according to embodiment 1. Fig. 2 is a schematic side view of the dustproof cover removal device 1 according to embodiment 1. Fig. 3 is a schematic top view of the dustproof cover removal device 1 according to embodiment 1. The dustproof cover removal device 1 includes an unmanned aerial vehicle 2, a removal tool 3, and a guide 4.

[0012] The unmanned aerial vehicle 2 is a device that moves through the air by remote control or autonomous operation, such as a drone. The unmanned aerial vehicle 2 has propellers for flight, and flies when the propellers are rotated by a motor (not shown). The unmanned aerial vehicle 2 operates based on wireless control signals from a remote controller (not shown).

[0013] The removal tool 3 is attached to the unmanned aerial vehicle 2 and removes the dust cover from the fire detector. The removal tool 3 in this embodiment has a first leg 31 extending upward from the top surface of the unmanned aerial vehicle 2 and an engagement part 32 extending in a direction intersecting with the first leg 31. In this embodiment, the engagement part 32 is connected to the upper end of the first leg 31, and the first leg 31 and the engagement part 32 together form a roughly L-shaped member. Furthermore, in this embodiment, the lower surface of the engagement part 32 has an inclined surface 33 that rises as it moves away from the first leg 31. Therefore, the thickness of the engagement part 32 in the vertical direction (Z direction in Figures 1 to 3) decreases from the first leg 31 toward the tip. In this embodiment, the upper surface of the engagement part 32 is flat.

[0014] The guide 4 is a member for positioning the removal tool 3 relative to the dust cover of the fire detector. The guide 4 has a second leg portion 41 extending upward from the upper surface of the unmanned aerial vehicle 2, and a guide portion 42 extending in a direction intersecting the second leg portion 41. The guide portion 42 is arranged with a horizontal gap (Y direction in Figures 1 to 3) between it and the engagement portion 32. In this embodiment, the guide portion 42 and the engagement portion 32 are arranged at approximately the same height from the upper surface of the unmanned aerial vehicle 2. The rod-shaped guide portion 42 extends generally parallel to the engagement portion 32. In this embodiment, the guide portion 42 is a rectangular parallelepiped, but may also be a circular cylinder or polygonal prism. The horizontal gap between the guide portion 42 and the engagement portion 32 is large enough to accommodate a fire detector 101 (see Figure 4), which will be described later.

[0015] FIG. 4 is a diagram illustrating the operation of the dustproof cover removal device 1 according to the first embodiment. Here, an example is described in which a spot-type fire detector 101, such as a smoke detector, a heat detector, or a flame detector, is attached to a ceiling 100, which is the installation location. A dustproof cover 200 that covers at least a portion of the fire detector 101 is attached to the fire detector 101. In the example of FIG. 4, the entire lower half of the fire detector 101 is covered by the dustproof cover 200. The dustproof cover 200 has a cup-shaped cover portion 201 that covers the fire detector 101 and a flange portion 202 that protrudes from the outer periphery of the cover portion 201. The cover portion 201 has a size that allows the fire detector 101 to fit therein, and the dustproof cover 200 is held to the fire detector 101 by at least a portion of the inner surface of the cover portion 201 coming into contact with the fire detector 101.

[0016] 4(1) shows the state before the dustproof cover 200 is removed by the dustproof cover removal device 1. There is a vertical gap between the ceiling 100 and the flange 202 above the flange 202. The unmanned aerial vehicle 2 of the dustproof cover removal device 1 moves to a position where the engagement part 32 is at approximately the same height as the vertical gap between the ceiling 100 and the dustproof cover 200.

[0017] 4(2a) to (2c) show a state in which the engagement portion 32 of the dustproof cover removal device 1 is inserted between the ceiling 100 and the dustproof cover 200. Fig. 4(2a) is a schematic front view, Fig. 4(2b) is a schematic side view, and Fig. 4(2c) is a schematic top view.

[0018] The unmanned aerial vehicle 2 of the dustproof cover removal device 1 moves horizontally to insert the engagement part 32 into the gap between the ceiling 100 and the dustproof cover 200. In this embodiment, the engagement part 32 has an inclined surface 33 on its underside and a tapered shape, so that the engagement part 32 can easily fit between the ceiling 100 and the dustproof cover 200.

[0019] 4(2b) and (2c), the engaging portion 32 and the guide portion 42 extend generally parallel to each other, so that the fire detector 101 can be sandwiched between them. This allows the engaging portion 32 to be positioned horizontally relative to the dust cover 200.

[0020] When the unmanned aerial vehicle 2 moves horizontally so as to bring the engagement portion 32 closer to the fire detector 101 and the dust cover 200, the inclined surface 33 comes into contact with the upper surface of the dust cover 200, and the inclined surface 33 pushes the dust cover 200 from above, causing it to detach from the fire detector 101 and fall. As shown in FIG. 4(3), the unmanned aerial vehicle 2 may move downward and push the dust cover 200 from above with the engagement portion 32. Here, it is preferable to form the height of the inclined surface 33 at the intermediate position to be greater than the gap between the flange 202 of the dust cover 200 and the ceiling 100 so that the engagement or press-fit state between the dust cover 200 and the fire detector 101 is released and the dust cover 200 can be removed by inserting the inclined surface 33 into the gap between the flange 202 of the dust cover 200 and the ceiling 100.

[0021] 4(2c), when the planar shape of the flange 202 of the dustproof cover 200 is rectangular, it is advisable to position the engaging portion 32 and the guide portion 42 on opposite corners across the fire detector 101. By doing so, the area of ​​the dustproof cover 200 that comes into contact with the engaging portion 32 can be increased, making it easier to remove the dustproof cover 200.

[0022] Next, we will explain the dimensions and materials of each part of the dustproof cover removal device 1. The length of the first leg 31 in the Z direction (the length from the surface to the top end of the unmanned aerial vehicle 2 in Figure 1) should be greater than the thickness of the fire detector 101. By doing so, as explained with reference to Figure 4, when the engagement portion 32 is inserted between the installation location of the fire detector 101 (ceiling 100) and the dustproof cover 200, the unmanned aerial vehicle 2 does not interfere with the fire detector 101.

[0023] The length of the engagement portion 32 in the X direction may be such that the tip of the engagement portion 32 is positioned outside the unmanned aerial vehicle 2, as shown in Figures 1 and 3. Alternatively, the length of the engagement portion 32 in the X direction may be such that the tip of the engagement portion 32 is not positioned outside the unmanned aerial vehicle 2. In this way, the center of gravity of the dustproof cover removal device 1 approaches the center of gravity of the unmanned aerial vehicle 2, thereby improving stability during flight. Note that while the sizes of the first leg 31 and the engagement portion 32 have been described here, the sizes of the guide portion 42 and the second leg 41, which are provided on the unmanned aerial vehicle 2 substantially parallel to these, also conform to the sizes of the first leg 31 and the engagement portion 32.

[0024] A low-friction member such as a wheel or a fluororesin may be provided on the surface of the engaging portion 32 opposite the inclined surface 33, i.e., the surface facing the installation location, such as the ceiling 100 or a wall. This allows the engaging portion 32 to slide easily along the installation location. This also enables the dustproof cover removal device 1 to operate in such a way that the unmanned aerial vehicle 2 is moved so that the engaging portion 32 comes into contact with the installation location, and then the engaging portion 32 is slid over the installation location to approach the dustproof cover 200. Because the positional relationship between the engaging portion 32 and the installation location can be fixed by bringing the engaging portion 32 into contact with the installation location, the engaging portion 32 can be accurately inserted between the dustproof cover 200 and the installation location by relatively easy remote control.

[0025] A cushioning material made of an elastic material such as natural rubber, silicone, or urethane may be attached to the surfaces of the engaging portion 32 and the guide portion 42. This makes it possible to suppress damage to the fire detector 101 or the installation location when the engaging portion 32 collides with the fire detector 101 or the installation location.

[0026] The materials of the detachment tool 3 and the guide 4 are not particularly limited, but may be synthetic resin, metal, paper, wood, etc. By reducing the weight of the detachment tool 3 and the guide 4, the stability of the unmanned aerial vehicle 2 during flight can be improved.

[0027] As described above, the dustproof cover removal device 1 of this embodiment includes the unmanned aerial vehicle 2 and the removal tool 3. The removal tool 3 is attached to the unmanned aerial vehicle 2 and includes the dustproof cover 200 that covers at least a portion of the fire detector 101 and the removal tool 3 that is inserted between the dustproof cover 200 and the installation location of the fire detector 101 to remove the dustproof cover 200 from the fire detector 101.

[0028] The dustproof cover removal device 1 of this embodiment is equipped with the unmanned aerial vehicle 2, and therefore, by remotely moving the unmanned aerial vehicle 2 to a high location such as a ceiling, the dustproof cover 200 can be removed using the removal tool 3. Therefore, the dustproof cover 200 can be removed without the need for a long operating support rod, as in the past, thereby reducing the burden on the worker. Furthermore, according to this embodiment, it is also possible to remove the dustproof cover 200 of a fire detector 101 that is installed at a high location where the operating support rod cannot reach.

[0029] In addition, the removal tool 3 of the dustproof cover removal device 1 of this embodiment is equipped with a first leg portion 31 extending from the unmanned aerial vehicle 2, and an engagement portion 32 extending in a direction intersecting the first leg portion 31 and inserted between the dustproof cover 200 and the installation location of the fire detector 101.

[0030] Therefore, with the engaging portion 32 inserted between the dustproof cover 200 and the installation location of the fire detector 101, moving the unmanned aerial vehicle 2 in a direction away from the dustproof cover 200 (the Z direction, which is the downward direction in this embodiment) causes the engaging portion 32 to push the dustproof cover 200. This allows the dustproof cover 200 to be removed from the fire detector 101. Furthermore, because the engaging portion 32 in this embodiment is a long member, it is possible to apply force to the dustproof cover 200 in a surface or line, making it possible to easily remove the dustproof cover 200.

[0031] Furthermore, in the removal tool 3 of this embodiment, the lower surface of the engaging portion 32, which is the surface facing the dustproof cover 200, has an inclined surface 33 that is inclined upward as it moves away from the first leg portion 31, so that the thickness of the engaging portion 32 decreases. As such, the lower surface of the engaging portion 32 has an inclined surface 33 that rises toward the tip. Therefore, by moving the engaging portion 32 inserted between the installation location and the dustproof cover 200 in a straight line, the inclined surface 33 presses against the dustproof cover 200, making it possible to remove the dustproof cover 200. It is also preferable that the tip of the engaging portion 32 has a tapered shape. This makes it easier to insert the engaging portion 32 between the installation location and the dustproof cover 200.

[0032] Furthermore, the dustproof cover removal device 1 of this embodiment is attached to the unmanned aerial vehicle 2 and includes a guide portion 42 arranged with a gap between it and the removal tool 3. The gap between the engagement portion 32 of the removal tool 3 and the guide portion 42 is larger than the diameter of the fire detector 101, and the fire detector 101 can be inserted between the engagement portion 32 of the removal tool 3 and the guide portion 42.

[0033] In this way, when the engaging portion 32 of the removal tool 3 is inserted onto the dustproof cover 200, the engaging portion 32, the guide portion 42, and the fire detector 101 are positioned in the Y direction. Therefore, even if the position of the unmanned aerial vehicle 2 is displaced with the engaging portion 32 inserted onto the dustproof cover 200, the fire detector 101 is sandwiched between the guide portion 42 and the engaging portion 32, so the engaging portion 32 will not come far off from above the dustproof cover 200. Therefore, the difficulty of remotely operating the unmanned aerial vehicle 2 to remove the dustproof cover 200 is reduced, and an operator can remove the dustproof cover 200 using the engaging portion 32 relatively easily.

[0034] Embodiment 2 In this embodiment, a dustproof cover removal device 1A will be described that includes a removal tool 3A having a different configuration from that of embodiment 1. In this embodiment, the differences from embodiment 1 will be mainly described.

[0035] FIG. 5 is a schematic front view of a dustproof cover removal device 1A according to the second embodiment. A dustproof cover 200A is also shown in FIG. 5. In the dustproof cover removal device 1A, a removal tool 3A includes a first leg 31 and an engaging portion 32A. The first leg 31 extends upward from the top surface of the unmanned aerial vehicle 2. The engaging portion 32A is a hook-shaped member that bends downward from the upper end of the first leg 31 in a U-shape. Alternatively, the engaging portion 32A may be bent downward from the upper end of the first leg 31 in a V-shape. The removal tool 3A is made of, for example, synthetic resin, metal, paper, or wood. In this embodiment, the dustproof cover removal device 1A does not include a guide 4. The engaging portion 32A may be provided with a structure to prevent the removed dustproof cover 200A from falling or scattering. For example, a sheet or coating of rubber or silicone may be provided on the surface of the engaging portion 32A so that the dustproof cover 200A is held by the engaging portion 32A.

[0036] The flange 202 of the dust cover 200A has an opening 203A. The opening 203A is a hole that penetrates the flange 202.

[0037] When removing the dustproof cover 200A, the unmanned aerial vehicle 2 of the dustproof cover removal device 1A moves and inserts the tip of the engagement part 32A into the opening 203A. The engagement part 32A inserted into the opening 203A is shown by the dashed line in Figure 5. Then, when the unmanned aerial vehicle 2 moves downward, a downward force is applied from the engagement part 32A to the dustproof cover 200A, and the dustproof cover 200A is removed.

[0038] As described above, the dustproof cover removal device 1A of this embodiment is equipped with an unmanned aerial vehicle 2, so similar to embodiment 1, the worker can remove the dustproof cover 200A without using a long operating support rod as in the conventional case, thereby reducing the physical burden on the worker.

[0039] Furthermore, the removal tool 3A of the dustproof cover removal device 1A of this embodiment includes a first leg 31 extending upward from the top surface of the unmanned aerial vehicle 2, and an engaging portion 32A bending downward in a U-shape or V-shape from the upper end of the first leg 31. The engaging portion 32A is inserted into an opening 203A provided in the dustproof cover 200A. In this state, the unmanned aerial vehicle 2 is moved in a direction away from the fire detector 101, whereby the dustproof cover 200A can be removed.

[0040] Although the first and second embodiments show an example in which the dustproof covers 200, 200A are removed from the fire detector 101 attached to the ceiling 100, the dustproof cover removal device 1, 1A can also remove the dustproof covers 200, 200A from the fire detector 101 attached to a wall. In this case, the dustproof covers 200, 200A can be removed by inserting the engagement portions 32, 32A between the wall and the dustproof covers 200, 200A and moving the unmanned aerial vehicle 2 horizontally in a direction away from the wall.

[0041] Furthermore, in the first and second embodiments, the removal tools 3, 3A are provided on the top surface of the unmanned aerial vehicle 2, but the removal tools 3, 3A may be provided on the side surface of the unmanned aerial vehicle 2. [Explanation of symbols]

[0042] 1 Dustproof cover removal device, 1A Dustproof cover removal device, 2 Unmanned aerial vehicle, 3 Removal tool, 3A Removal tool, 4 Guide, 31 First leg portion, 32 Engagement portion, 32A Engagement portion, 33 Inclined surface, 41 Second leg portion, 42 Guide portion, 43 Removal tool, 100 Ceiling, 101 Fire detector, 200 Dustproof cover, 200A Dustproof cover, 201 Cover portion, 202 Flange portion, 203A Opening.

Claims

1. Unmanned aerial vehicles and a removal tool that is attached to the unmanned aerial vehicle and that covers at least a part of the fire detector, and that is inserted between the dustproof cover and the installation location of the fire detector to remove the dustproof cover from the fire detector. Dustproof cover removal device.

2. The removal tool includes: a first leg extending from the unmanned air vehicle; an engaging portion extending in a direction intersecting the first leg portion and inserted between the dustproof cover and the installation location; The dustproof cover removal device according to claim 1.

3. The surface of the engaging portion facing the dustproof cover has an inclined surface that is inclined so that the thickness of the engaging portion decreases as it moves away from the first leg portion. The dustproof cover removal device according to claim 2.

4. a guide portion attached to the unmanned aerial vehicle and disposed with a gap between it and the removal tool; The gap is larger than the diameter of the fire detector, and the fire detector can be inserted between the removal tool and the guide portion. The dustproof cover removal device according to any one of claims 1 to 3.

5. The removal tool includes: a first leg extending upward from the unmanned air vehicle; an engaging portion bent downward in a U-shape or a V-shape from an upper end of the first leg portion, The engaging portion is inserted into an opening provided in the dust cover. The dustproof cover removal device according to claim 1.

6. The bent engaging portion of the removal tool is provided with a structure that can prevent the dustproof cover from falling or scattering. The dustproof cover removal device according to claim 5.

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