Mounting base and method for attaching and detaching a fire detector body

Abstract

To provide a fitting base and an attachment / detachment method of a fire sensor body for solving a problem that torque required for rotating the fire sensor body is difficult to be obtained when the fire sensor body is attached to or detached from the fitting base by a multicopter.SOLUTION: A fitting base 1 of a fire sensor comprises: a first blade receiving metal fitting 141; a second blade receiving metal fitting provided above the first blade receiving metal fitting; a conduction terminal 145 exposed to the outside to receive supply of power from the outside; and an actuator 143 connected with the first blade receiving metal fitting and the second blade receiving metal fitting to receive power through the conduction terminal. The fire sensor can be fixed to the fitting base by sandwiching a blade metal fitting of a fire sensor body between the first blade receiving metal fitting and the second blade receiving metal fitting. The actuator is driven and the first blade receiving metal fitting is separated from the second blade receiving metal fitting by supply of power to the conduction terminal.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a mounting base for a fire detector and a method for attaching and detaching a fire detector main body.

Background Art

[0002] A fire detector such as a smoke detector is installed in a building by attaching a fire detector main body to a mounting base previously fixed to a ceiling or the like. Further, the fire detector main body attached to the mounting base is removed for inspection or the like. In the fire detector of Patent Document 1, in order to attach and detach a sensor main body, which is the fire detector main body, to and from a base main body, which is the mounting base, the base main body is provided with a blade receiving fitting and a contact spring.

[0003] FIG. 1 shows a conventional fire detector attached to a ceiling board C as in Patent Document 1. FIG. 1(a) shows a cross-sectional view of a mounting base 8 attached to a hole in the ceiling board C and a fire detector main body 2 before being attached to the mounting base 8. Further, FIG. 1(b) shows a cross-sectional view of the mounting base 8 and the fire detector main body 2 attached to the mounting base 8.

[0004] The fire detector is composed of a mounting base 8 fixed in advance to the ceiling board C and a fire detector main body 2 detachably attached to the mounting base 8. The mounting base 8 includes a base main body 81, a flange portion 82 provided around the base main body 81, and a fixing member 89 provided on the upper portion of the base main body 81. In this specification, up and down are described in a state where the mounting base or the like is attached to the ceiling board C. The fixing member 89 includes a pressing piece 891 provided on the back side of the base main body 81, a square female screw 892, and a male screw 893 screwed into the square female screw 892 through the pressing piece 891. Two sets of the pressing piece 891, the square female screw 892, and the male screw 893 are provided.

[0005] When fixing the mounting base 8 to the ceiling board C, with both ends of the pressing piece 891 standing on the back side of the mounting base body 81, insert the fixing member 89 and the mounting base body 81 into the hole opened in the ceiling board C. Then, by turning the male screw 893, tighten the pressing piece 891 between the square female screw 892 and the back protrusion 811 to expand the pressing piece 891. Sandwich the ceiling board C between the outer end of the expanded pressing piece 891 and the flange portion 82, and the mounting base 8 is fixed to the ceiling board C as shown in Fig. 1(a).

[0006] The fire detector body 2 is held by the operator's hand and brought close to the mounting base 8 from below as shown in Fig. 1(a). Then, after inserting it into the fitting space 83 and rotating it, it is attached to the mounting base 8 as shown in Fig. 1(b). Also, in the attached state shown in Fig. 1(b), when the operator rotates the fire detector body 2 in the opposite direction to when it is attached, the fire detector body 2 can be removed from the mounting base 8.

[0007] Fig. 2 shows a bottom view of the mounting base 8 attached to the ceiling board C. In the fitting space 83 of the mounting base 8, two sets of contact springs 841 and blade receiving metal fittings 842 are provided. The blade receiving metal fittings 842 are located on the back side of the contact springs 841. Since the periphery of the mounting base 8 is the ceiling board C and the pressing piece 891 is on the upper side of the ceiling board C, it is not visible in Fig. 2. The contact spring 841 has its base 841a fixed to the blade receiving metal fitting 842, and its end 841b is bent in the direction opposite to the blade receiving metal fitting 842. The end 841b is biased in the direction of the blade receiving metal fitting 842.

[0008] Fig. 3 shows a top view of the fire detector body 2. Two blade fittings 22 are attached to the fire detector body 2 at positions facing each other on the detector back panel 21. Fig. 4 shows an enlarged view of the blade fitting 22 shown in Fig. 3. Fig. 4(a) is a top view of the blade fitting 22, and Fig. 4(b) is a side view of the blade fitting 22. The blade fitting 22 is configured by bending a single conductor plate into a contact portion 221, an intermediate portion 222, and a fixing portion 223. The contact portion 221 and the intermediate portion 222 are bent in one direction, and the intermediate portion 222 and the fixing portion 223 are bent in the opposite direction. A fixing screw hole 224 is provided in the fixing portion 223. By screwing a screw into the fixing screw hole 224, the fixing portion 223 is fixed to the detector back panel 21, and the blade fitting 22 is fixed to the detector back panel 21.

[0009] When attaching the fire detector body 2 to the mounting base 8, by rotating the fire detector body 2 within the fitting space 83, the contact portion 221 of the blade fitting 22 is inserted between the contact spring 841 and the blade receiving fitting 842 of the mounting base 8. Then, the contact portion 221 is clamped between the contact spring 841 and the blade receiving fitting 842. Thereby, the fire detector body 2 is attached to the mounting base 8 and is electrically connected by the conductive blade fitting 22, the contact spring 841, and the blade receiving fitting 842. Also, by rotating the fire detector body 2 in the direction opposite to when it is attached, the blade fitting 22 can be removed from between the contact spring 841 and the blade receiving fitting 842, and the fire detector body 2 can be removed from the mounting base 8.

Prior Art Documents

Patent Documents

[0010]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0011] The attachment and removal of the fire detector body to and from the mounting base are performed by an operator manually holding the fire detector body and rotating it. When performing these operations in a general office building or the like, a stepladder can be used. However, when performing these operations on a fire detector installed on the ceiling of an atrium or theater with a high ceiling, it is necessary to set up a high scaffold, which incurs high costs. Therefore, it is conceivable to use a multi-copter type drone.

[0012] The blade fitting of the fire detector body is sandwiched between the blade receiving fitting of the mounting base and the contact spring, and a certain amount of torque is required to rotate the fire detector body. However, although a multi-copter can generate torque by performing a turning operation, it is difficult to obtain sufficient torque to rotate the fire detector body with the blade fitting sandwiched because it is flying.

[0013] An object of the present invention is to solve the problem that it is difficult to obtain the torque necessary to rotate the fire detector body when attaching or detaching the fire detector body to or from the mounting base with a multi-copter.

Means for Solving the Problem

[0014] The mounting base according to an embodiment of the present invention is a mounting base for a fire detector, and includes a first blade receiving fitting, a second blade receiving fitting provided above the first blade receiving fitting, an energization terminal that is exposed to the outside and receives power supply from the outside, and an actuator that is connected to the first blade receiving fitting and the second blade receiving fitting and receives power through the energization terminal. The blade fitting of the fire detector can be sandwiched between the first blade receiving fitting and the second blade receiving fitting to fix the fire detector, and when power is supplied to the energization terminal, the actuator is driven to separate the first blade receiving fitting and the second blade receiving fitting.

Effect of the Invention

[0015] According to the present invention, a fire detector main body can be removed from a mounting base installed at a high place or attached to the mounting base by using a multicopter.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Modes for Carrying Out the Invention

Examples

[0017] As described above, in this specification, up and down are described with the mounting base or the like attached to the ceiling board C. FIG. 5 shows a bottom view of the mounting base 1 in an embodiment of the present invention. The mounting base 1 includes a mounting base main body 11 and a flange portion 12 having a frustum side surface shape that extends outward therefrom. The inside of the mounting base main body 11 is a fitting space 13 for fitting the fire detector main body 2. This fire detector main body 2 is the same as the fire detector main body 2 in the conventional example shown in FIGS. 3 and 4.

[0018] On the mounting base main body 11, a mounting member 14 for mounting the fire detector main body 2 is provided above the fitting space 13. The mounting member 14 includes a first blade receiving fitting 141, a second blade receiving fitting 142, an actuator 143, a spacer member 144, and an energization terminal 145 exposed to the outside. The second blade receiving fitting 142 is provided above the first blade receiving fitting 141 and is not shown in FIG. 5 because it is in a hidden position. The mounting base 1 is circular, and the energization terminal 145 is provided in an arc shape with a width at two opposed positions on the outer periphery of the mounting base 1 facing the flange portion 12. In addition to the energization terminal 145, an LED lamp 15 is provided on the flange portion 12. The actuator 143 in Example 1 is a linear solenoid actuator.

[0019] The mounting base 1 includes a fixing member 19, similar to the fixing member 89 of the conventional mounting base 8. Male screws 193 of the fixing member 19 are provided at two locations. Also, the square female screw 192 is hidden on the back side of the mounting base main body 11. The pressing piece 191 is omitted from the description.

[0020] Fig. 6 shows an enlarged view of the mounting portion in the first direction in Example 1. The first direction is the direction of the arrow A in Fig. 5. When looking in the direction of A with the front side being downward in Fig. 5, the separation member 144 is on the left side as shown in Fig. 6. Also, Fig. 7 shows an enlarged view of the mounting portion in the second direction in Example 1. The second direction is the direction of the arrow B in Fig. 5. Figs. 6 and 7(a) show a state in which the contact portion 221 of the fitting 22 of the fire detector main body 2 is sandwiched between the first blade receiving fitting 141 and the second blade receiving fitting 142 of the mounting base 1. Fig. 7(b) shows a state in which a gap has occurred between the second blade receiving fitting 142 and the fitting 22, and Fig. 7(c) shows a state in which the fitting 22 has come out from between the first blade receiving fitting 141 and the second blade receiving fitting 142.

[0021] The first blade receiving fitting 141 is fixed, and the second blade receiving fitting 142 is movable in a direction away from the first blade receiving fitting 141 by driving the actuator 143. In order to place the fitting 22 on it, the first blade receiving fitting 141 is made of thick metal and serves as the base of the blade receiver. In the sense of the base of the blade receiver, it corresponds to the blade receiving fitting 842 of the conventional example. Also, the second blade receiving fitting 142 is a leaf spring having elasticity and corresponds to the contact spring 841 of the conventional example. In Example 1, the configuration is such that the contact spring 841 and the blade receiving fitting 842 of the conventional example are turned upside down. By doing so, even if the second blade receiving fitting 142 is thin and has a large flexibility, the fitting 22 can be stably placed on the first blade receiving fitting 141.

[0022] Also, Figs. 6 and 7 show a separation member 144 in which the vicinity of the tip 144b is a tapered surface 144c. As shown in Fig. 6, the base 144a of the separation member 144 is fixed to the tip of the plunger 143a of the actuator 143. Then, the tip 144b of the separation member 144 and the tapered surface 144c in its vicinity are inserted between the first blade receiving fitting 141 and the second blade receiving fitting 142.

[0023] When current is supplied from the energization terminal 145 to the actuator 143, the plunger 143a moves in the direction of P in Fig. 6. Then, the tip 144b of the separation member 144 is pushed out in the direction of P, and the tapered surface 144c pushes up the second blade receiving fitting 142 in the direction of R. Fig. 7(a) shows the state before the plunger 143a moves in the direction of P, and Fig. 7(b) shows the state after the plunger 143a moves in the direction of the arrow P. In Fig. 7(b), due to the movement of the plunger 143a, the separation member 144 pushes up the second blade receiving fitting 142 in the direction of the arrow R, creating a gap between the contact portion 221 of the blade fitting 22 and the second blade receiving fitting 142.

[0024] As a result, the blade fitting 22 sandwiched between the first blade receiving fitting 141 and the second blade receiving fitting 142 can freely move in the direction of the arrow M in Fig. 7(b), and the fire detector body 2 attached to the mounting base 1 can be easily rotated and removed.

[0025] When the fire detector body 2 is removed and the current supply to the actuator 143 is interrupted, the plunger 143a is structured to return in the direction opposite to the arrow P shown in Fig. 6. As a result, most of the separation member 144 comes out from between the first blade receiving fitting 141 and the second blade receiving fitting 142, reaching the state shown in Fig. 7(c).

[0026] When attaching the fire detector body 2 to the mounting base 1, current is supplied to the actuator 143 in the state shown in Fig. 7(c). Then, as the plunger 143a moves in the direction of the arrow P, the separation member 144 opens the space between the first blade receiving fitting 141 and the second blade receiving fitting 142. As a result, by slightly rotating the drone on the spot, the blade fitting 22 can be easily inserted between the first blade receiving fitting 141 and the second blade receiving fitting 142.

[0027] In Embodiment 1, the bit fitting 22 of the fire detector main body 2 can be attached by sandwiching it between the first bit receiving fitting 141 and the second bit receiving fitting 142. Then, when current is supplied to the energization terminal 145, the actuator 143 is driven and the first bit receiving fitting 141 and the second bit receiving fitting 142 are separated.

[0028] (Circuit configuration of the mounting base 1) FIG. 8 shows the circuit configuration of the mounting base 1 in Embodiment 1. The two energization terminals 145 are connected to the two actuators 143 via a rectifier 146. When voltage is supplied to the energization terminal 145, no matter which voltage of the two energization terminals 145 is higher, it is rectified by the rectifier 146. Then, current flows through the actuator 143 and the plunger 143a protrudes. In this way, when current is supplied between the two energization terminals 145, the plunger 143a protrudes from the two actuators 143 no matter which is the higher voltage. Also, when the current between the energization terminals 145 disappears, the plunger 143a of the actuator 143 retracts.

[0029] Also, the output of the rectifier 146 is connected to the LED lamp 15 shown in FIG. 5. Therefore, while current is flowing through the actuator 143 and the space between the first bit receiving fitting 141 and the second bit receiving fitting 142 is open, the LED lamp 15 lights up. By visually recognizing the lighting state of the LED lamp 15, the operator can determine that the energization has started and the space between the first bit receiving fitting 141 and the second bit receiving fitting 142 is open, or that there is no energization and the space between the first bit receiving fitting 141 and the second bit receiving fitting 142 is closed.

[0030] (Attachment and detachment of the fire detector main body 2 by the multicopter 3) Figure 9 shows the fire detector provided on the ceiling panel C in Example 1 and the multicopter 3 flying in the vicinity of the fire detector. The fire detector includes a mounting base 1 fixed to the ceiling panel C which is the installation part, and a fire detector main body 2 removably attached to the mounting base 1. The mounting base 1 is fixed to the ceiling panel C by a fixing member 19. The fixing member 19 includes two pressing pieces 191, two square female screws 192, and two male screws 193. By turning the male screw 193, the pressing piece 191 is tightened between the square female screw 192 and the back protrusion 111, the pressing piece 191 is expanded, and the ceiling panel C is sandwiched between both ends of the expanded pressing piece 191 and the flange part 12, thereby fixing the mounting base 1.

[0031] The multicopter 3, which is a type of drone, includes a plurality of propellers 31 and can perform not only ascending, descending, and moving left and right, but also hovering and turning left and right. The multicopter 3 includes a motor 32 that rotates the propeller 31, an ESC 33 that controls the rotation speed of the motor 32, a control unit 34, a transceiver unit 35, and a battery 36. The control unit 34 controls the flight of the multicopter 3 such as hovering, ascending, descending, moving left and right, and turning left and right by controlling the rotation speed of the plurality of motors 32.

[0032] The multicopter 3 of Example 1 includes a sensor holding part 37, a pair of contact springs 38, and a camera 39 on the upper part. The sensor holding part 37 is a columnar member with a recessed upper part, and the fire detector main body 2 can be placed in the recess in the upper part. The upper part of the sensor holding part 37 is a mortar-shaped recess and is provided with a rubber pad (not shown) inside for anti-slip. A pair of contact springs 38 are provided on both sides of the sensor holding part 37 facing upward. A contact 381 that contacts the energization terminal 145 is formed near the tip of the contact spring 38, and a predetermined voltage is applied between the pair of contacts 381. Also, the camera 39 is attached to the side surface of the sensor holding part 37 facing upward.

[0033] The method for attaching and detaching the fire detector main body 2 by the multicopter 3 is as follows. By transmitting a wireless control signal from a controller (not shown) to the transceiver unit 35, the multicopter 3 is flight-controlled under the control of the control unit 34. Also, the video from the camera 39 is sent to the transceiver unit 35 via the control unit 34, and the video signal is transmitted wirelessly to a display device (not shown). The operator can fly and control the multicopter 3 by operating the controller while visually observing or looking at the display on the display device. Since the camera 39 faces upward, the display on the display device is useful when the multicopter 3 approaches the mounting base 1 and makes fine position adjustments or the like. Also, the video from the camera 39 can be used for the automatic flight control of the multicopter 3.

[0034] When removing the fire detector main body 2 attached to the mounting base 1 installed on the high ceiling board C, as shown in FIG. 9, fly the multicopter 3 toward the fire detector attached to the ceiling board C. Then, as shown in FIG. 10, bring the contact 381 of the multicopter 3 into contact with the energizing terminal 145 of the mounting base 1. The energizing terminal 145 is provided in an arc shape having a width at the flange portion 12 of the mounting base 1 as shown in FIG. 5, and the two energizing terminals 145 are arranged spaced apart at positions facing each other. The two contacts 381 in the multicopter 3 of Example 1 are arranged at positions that come into contact with the two energizing terminals 145.

[0035] When the multi-copter 3 is set to an appropriate turning position and the sensor holding part 37 is brought into contact with the fire detector main body 2, as shown in FIG. 10, two contacts 381 come into contact with two energization terminals 145. A voltage is applied between the two contacts 381 so as to generate a potential difference. When the contact 381 comes into contact with the energization terminal 145, current flows from the contact spring 38 of the multi-copter 3 to the energization terminal 145 of the mounting base 1. Then, due to the function of the rectifier 146 shown in FIG. 8, the current is rectified and the two actuators 143 project the plunger 143a. No matter which of the two energization terminals 145 the high-voltage contact 381 contacts, a current in the direction of projecting the plunger 143a is generated by the function of the rectifier 146. Since the current flows only while in contact with the energization terminal 145, consumption of the battery 36 can be suppressed.

[0036] The projected plunger 143a, as shown in FIG. 7(b), causes the tapered surface 144c of the separation member 144 to push up the second blade receiving fitting 142, widening the gap between the first blade receiving fitting 141 and the second blade receiving fitting 142. Thereby, the contact part 221 of the blade fitting 22 is released from the first blade receiving fitting 141 and the second blade receiving fitting 142.

[0037] As shown in FIG. 7(b), when the multi-copter 3 is turned with the contact part 221 in the open state, the fire detector main body 2 rotates together due to the anti-slip action of the rubber pad in the sensor holding part 37. Then, due to the rotation of the fire detector main body 2, even with a small torque, the blade fitting 22 can be easily removed in the direction of the arrow M from between the first blade receiving fitting 141 and the second blade receiving fitting 142 with an increased gap. Until the multi-copter 3 turns and the blade fitting 22 comes out from between the first blade receiving fitting 141 and the second blade receiving fitting 142, as shown in FIG. 10, the two contacts 381 move while contacting the arc-shaped energization terminal 145. While the contact 381 and the energization terminal 145 are in contact, current continues to flow to the actuator 143, and the gap between the first blade receiving fitting 141 and the second blade receiving fitting 142 remains open even when the multi-copter 3 is turning.

[0038] When the multicopter 3 further rotates and either one of the contacts 381 disengages from the energizing terminal 145, the current is interrupted, and the plunger 143a returns to its original position. Then, the separation member 144 is pulled in the direction opposite to the arrow P in FIG. 6, and the first blade receiving fitting 141 and the second blade receiving fitting 142 approach or come into contact with each other as shown in FIG. 7(c). Also, even if either one of the contacts 381 disengages from the energizing terminal 145 due to the descent of the multicopter 3, the state shown in FIG. 7(c) is achieved.

[0039] In this way, as shown in FIG. 11, the fire detector main body 2 can be removed from the mounting base 1 attached at a high place by housing the fire detector main body 2 in the detector holding portion 37 of the multicopter 3. After removing the fire detector main body 2, the multicopter 3 is lowered to recover the fire detector main body 2.

[0040] Also, when attaching the fire detector main body 2 to the mounting base 1, the reverse process of the removal case may be performed. First, the fire detector main body 2 is mounted on the detector holding portion 37 of the multicopter 3, the multicopter 3 is lifted, and it is brought close to the mounting base 1 as shown in FIG. 11. Then, as shown in FIG. 10, the fire detector main body 2 is housed in the fitting space 13 of the mounting base 1. Thereby, the two contacts 381 come into contact with the energizing terminals 145, and current is supplied. Then, the plunger 143a of the actuator 143 projects, and the distance between the first blade receiving fitting 141 and the second blade receiving fitting 142 is increased.

[0041] When the multicopter 3 is rotated in the opposite direction to when it is removed, the fire detector main body 2 also rotates together. And since the distance between the first blade receiving fitting 141 and the second blade receiving fitting 142 is open, even with a small torque, as shown in FIG. 7(b), the contact portion 221 of the blade fitting 22 enters between the first blade receiving fitting 141 and the second blade receiving fitting 142. At this time, since the two contacts 381 slide while remaining in contact with the two energizing terminals 145, the space between the first blade receiving fitting 141 and the second blade receiving fitting 142 remains open.

[0042] When the multicopter 3 descends, as shown in FIGS. 6 and 7(a), the contact portion 221 of the blade fitting 22 is sandwiched between the first blade receiving fitting 141 and the second blade receiving fitting 142. As a result, the fire detector main body 2 is attached to the mounting base 1 and electrically connected.

[0043] As described above, the multicopter 3 flies to the position where the mounting base 1 is installed. Then, by supplying current from the contact 381 of the multicopter 3 to the mounting base 1 via the energizing terminal 145, the actuator 143 is driven and the first blade receiving fitting 141 and the second blade receiving fitting 142 are separated. By turning the multicopter 3 in this state, it is possible to insert or remove the blade fitting 22 of the fire detector main body 2 into the space created by the separation.

Embodiment

[0044] In Embodiment 1, a separation member 144 was inserted between the first blade receiving fitting 141 and the second blade receiving fitting 142 to form a gap and release the blade fitting 22 of the fire detector main body 2. However, the blade fitting 22 may be released by other methods. FIG. 12 shows the configuration of the mounting member 44 in the mounting base 4 of Embodiment 2. The mounting base 4 of Embodiment 2 has the same configuration as that of Embodiment 1 except for the mounting member 44.

[0045] The mounting member 44 of Embodiment 2 includes a first blade receiving fitting 441, a second blade receiving fitting 442, an actuator 443, and a clamping member 444. FIG. 12(a) shows a state where the space between the first blade receiving fitting 441 and the second blade receiving fitting 442 is closed, and FIG. 12(b) shows a state where the space between the first blade receiving fitting 441 and the second blade receiving fitting 442 is open. The first blade receiving fitting 441 has an upward bending portion 441a, and the second blade receiving fitting 442 has a downward bending portion 442a. One end of the bending portion 441a is provided with a tip portion 441b, and the other end is provided with an inclined portion 441c. Also, one end of the bending portion 442a is provided with a tip portion 442b, and the other end is provided with an inclined portion 442c.

[0046] In Example 2, the first blade receiving fitting 441 and the second blade receiving fitting 442 tend to open at their tip portions 441b and 442b due to their own spring properties. The clamping member 444 consists of two fixed cylinders, and the inclined portion 441c of the first blade receiving fitting 441 and the inclined portion 442c of the second blade receiving fitting 442 are pressed from the outside by the two clamping members 444.

[0047] Figure 12(a) shows a state where no current is flowing through the actuator 443, the plunger 443a does not protrude from the actuator 443, and the first blade receiving fitting 441 and the second blade receiving fitting 442 are in a state of being pulled in the direction of the actuator 443. In this state, since the first blade receiving fitting 441 and the second blade receiving fitting 442 are pressed inward by the clamping member 444, the space between the tip portions 441b and 442b is closed.

[0048] Figure 12(b) shows a state where current is supplied from the multicopter 3 to drive the actuator 443 and the plunger 443a protrudes. When the plunger 443a protrudes, the first blade receiving fitting 441 and the second blade receiving fitting 442 move to the left in Figure 12, and the inclined portion 441c and the inclined portion 442c also move to the left. As a result, the first blade receiving fitting 441 and the second blade receiving fitting 442, which were trying to expand due to their own spring properties, expand, and the space between the tip portions 441b and 442b is separated. It is possible to insert or remove the bit 22 of the fire detector body 2 into the separated space.

Example

[0049] Figure 13 shows the mounting base 5 and the multicopter 6 of Example 3. The mounting base 5 of Example 3 does not have an inclined peripheral portion like the flange portion 12 of Example 1. The mounting base 5 is circular, and the outer periphery of the mounting base 5 is a side surface portion 52 having a cylindrical side surface shape. And the energization terminals 545 of the mounting member 54 are formed at two opposing locations on the side surface portion 52. One of the energization terminals 545 is visible in Figure 13. The pair of energization terminals 545 are both exposed to the outside.

[0050] The multicopter 6 of Example 3 is provided with a plurality of propellers 61 and can perform hovering, turning left and right, as well as ascending, descending, and moving left and right. The multicopter 6 includes a motor 62 for rotating the propellers 61, an ESC 63 for controlling the rotation speed of the motor 62, a control unit 64, a transceiver 65, and a battery 66. The control unit 64 controls the rotation speeds of the plurality of motors 62 to perform flight control of the multicopter 6, such as hovering, ascending, descending, moving left and right, and turning left and right.

[0051] Furthermore, the multicopter 6 of Example 3 is further provided with a sensor holder 67, a pair of contact springs 68, and a camera 69 at the upper part. The sensor holder 67 is a concave cylindrical member, and the fire sensor main body 2 can be placed in the upper recess. The upper part of the sensor holder 67 is a mortar-shaped recess and is provided with a rubber pad (not shown) inside for anti-slip. A pair of contact springs 68 are provided on both outer sides of the sensor holder 67 facing upward. Near the tip of the contact spring 68, a contact 681 that contacts the energization terminal 545 on the inside is formed, and a predetermined voltage is applied between the pair of contacts 681. Also, the camera 69 is attached to the side surface of the sensor holder 67 facing upward.

[0052] The multicopter 6 of Example 3 is the same as the multicopter 3 of Example 1 except for the structure of the contact spring 68. The contact spring 68 of the multicopter 6 is configured such that the contact 681 sandwiches from both sides. In Example 3, the energization terminal 545 is brought into contact between the contacts 681 of the pair of contact springs 68 provided in the multicopter 6 to allow current to flow. Then, due to the current flowing through the energization terminal 545, the blade fitting 22 of the fire sensor main body 2 can be easily removed or attached by opening the space between the first blade receiving fitting (not shown) and the second blade receiving fitting (not shown) of the mounting base 5.

[0053] By using the mounting base of the embodiment described above and a multi-copter having a battery (power supply unit) necessary for driving to separate the two blade receiving fittings, it becomes possible to remove and attach the fire detector by the multi-copter using the conventional fire detector body. Therefore, when attaching and detaching the fire detector installed at a high place, the operator can operate the multi-copter from near the floor surface, and the fire detector can be attached, detached, and transported, improving the detachability of the detector and the safety and workability of the inspection work.

[0054] The fire detector body and the mounting base of the above embodiment are a two-terminal type fire detector body provided with two blade fittings and a mounting base corresponding to the two-terminal type fire detector body. However, it may also be used for a four-terminal type fire detector body and a mounting base provided with four blade fittings. In the four-terminal type mounting base, four sets of first blade receiving fittings and second blade receiving fittings are used.

[0055] As a mechanism for separating the first blade receiving fitting and the second blade receiving fitting, various mechanisms can be used. Also, in Example 1, the lower first blade receiving fitting 141 was fixed, and the upper second blade receiving fitting 142 moved upward and separated. However, the upper second blade receiving fitting may be fixed as in the conventional example, and the lower first blade receiving fitting may move and separate.

[0056] Although two energization terminals are provided in the embodiment, it is sufficient if a plurality of energization terminals are provided, and three or more may be provided. It is preferable to use a material with a slippery surface for the energization terminals. It may be a metal plate or a plurality of conducting wires along the circumference. Also, the contact may be any that can conduct current while sliding with the energization terminal. For example, it may be near the tip of a bent linear spring or may be one with a conductive brush attached.

[0057] In addition, the specific configuration is not limited to the embodiments, and design changes and the like within the scope not departing from the gist of the present invention are also included in the present invention. Also, the above-described embodiments can be combined by diverting each other's technologies as long as there are no particular contradictions or problems in their purposes and configurations.

Description of Symbols

[0058] 1 Mounting base, 11 Mounting base body, 111 Rear protruding portion, 12 Flange portion, 13 Fitting space, 14 Mounting member, 141 First blade receiving fitting, 142 Second blade receiving fitting, 143 Actuator, 143a Plunger, 144 Spacing member, 144a Base portion, 144b Tip, 144c Tapered surface, 145 Energizing terminal, 146 Rectifier, 15 LED lamp, 19 Fixing member, 191 Pressing piece, 192 Square female screw, 193 Male screw, 2 Fire detector body, 21 Detector back panel, 22 Blade fitting, 221 Contact portion, 222 Intermediate portion, 223 Fixing portion, 224 Fixing screw hole, 3 Multicopter, 31 Propeller, 32 Motor, 33 ESC, 34 Control unit, 35 Transceiver, 36 Battery, 37 Detector holding portion, 38 Contact spring, 381 Contact, 39 Camera, 4 Mounting base, 44 Mounting member, 441 First blade receiving fitting, 441a Bent portion, 441b Tip portion, 441c Inclined portion, 442 Second blade receiving fitting, 442a Bent portion, 442b Tip portion, 442c Inclined portion, 443 Actuator, 443a Plunger, 444 Clamping member, 5 Mounting base, 51 Mounting base body, 52 Side surface portion, 54 Mounting member, 545 Energizing terminal, 6 Multicopter, 61 Propeller, 62 Motor, 63 ESC, 64 Control unit, 65 Transceiver, 66 Battery, 67 Detector holding portion, 68 Contact spring, 681 Contact, 69 Camera, 8 Mounting base, 81 Mounting base body, 811 Rear protruding portion, 82 Flange portion, 83 Fitting space, 84 Mounting member, 841 Contact spring, 841a Base portion, 841b End portion, 842 Blade receiving fitting, 89 Fixing member, 891 Pressing piece, 892 Square female screw, 893 Male screw, C Ceiling board

Claims

1. A mounting base for a fire detector main body, comprising: a first blade receiving fitting; a second blade receiving fitting provided above the first blade receiving fitting; a power supply terminal that is exposed to the outside and can receive current supply from the outside; an actuator connected to the first blade receiving fitting and the second blade receiving fitting and receiving current through the power supply terminal; The fire detector main body can be attached by sandwiching the blade fitting of the fire detector main body between the first blade receiving fitting and the second blade receiving fitting; When current is supplied to the power supply terminal, the actuator is driven to separate the first blade receiving fitting and the second blade receiving fitting. Mounting base.

2. The first blade receiving fitting is fixed, and the second blade receiving fitting is movable in a direction away from the first blade receiving fitting by the actuator. The mounting base according to Claim 1.

3. The mounting base is circular, and a plurality of the power supply terminals are provided on the outer periphery of the mounting base. The mounting base according to Claim 1.

4. A multi-copter capable of mounting a fire detector main body, and a mounting base fixed to an installation part and capable of attaching the fire detector main body are used. The multi-copter has a contact for supplying current. The mounting base includes: a first blade receiving fitting; a second blade receiving fitting provided above the first blade receiving fitting; a power supply terminal that is exposed to the outside and can receive current supply from the outside; an actuator connected to the first blade receiving fitting and the second blade receiving fitting and receiving current through the power supply terminal; The multi-copter flies to the position where the mounting base is installed, and by supplying current from the contact of the multi-copter to the mounting base through the power supply terminal, the actuator is driven to separate the first blade receiving fitting and the second blade receiving fitting, and the blade fitting of the fire detector main body can be inserted into or removed from the space formed by the separation. Method for attaching and detaching a fire detector main body.

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