Protection device for rail transit weak current installation

Abstract

The utility model relates to the technical field of protection detection devices, and particularly discloses a protection device for rail transit weak current installation, which comprises a rack, a plurality of groups of first racks and second racks are fixedly connected to two ends of the rack respectively, and the first racks and the second racks are oppositely arranged in a staggered manner. A limiting rod is fixedly connected into the machine frame, a nut seat is arranged outside the limiting rod in a penetrating mode, the device is installed in an area needing fire protection, after installation is completed, the nut seat can be driven by the driving assembly to do linear reciprocating motion, and therefore the nut seat can drive the rotating plate to do synchronous motion; the protection area can be monitored through the detection assembly at the bottom of the rotating plate; besides, in the reciprocating motion process of the nut seat, the gear is meshed with the first rack and the second rack in a staggered mode, the rotating plate can be driven to continuously rotate left and right, and therefore the monitoring range of an external detection assembly of the rotating plate can be enlarged.

Description

Technical Field

[0001] This utility model relates to the field of protection and detection device technology, and in particular to a protection device for low-voltage electrical installations in rail transit. Background Technology

[0002] Low-voltage electrical systems in rail transit refer to the electrical systems with lower voltage and relatively lower power in rail transit systems. They mainly include subsystems such as communication, signaling, automatic fare collection, and integrated monitoring. The communication system acts as the "nervous system" of rail transit, transmitting and exchanging voice, data, and images through transmission lines and switching equipment, ensuring unimpeded information flow between the control center and stations, vehicles, and other parts of the system. The signaling system is the "commander" of train operation, using various signals, switch machines, and other equipment to precisely control the direction, speed, and intervals of trains, ensuring safe and efficient train operation. Furthermore, fire protection devices are required for special areas.

[0003] In existing technologies, fire detection typically involves installing a smoke sensor at a fixed location, which allows the smoke sensor to detect a fixed area, but cannot further extend the detection and protection range. Utility Model Content

[0004] In response to the technical problem that fire detection in the past involved installing a smoke sensor at a fixed location, which could only detect a fixed area and could not further expand the detection and protection range, this utility model provides a protection device for low-voltage electrical installations in rail transit.

[0005] The technical solution adopted by this utility model is: a protection device for low-voltage electrical installation in rail transit, including a frame, with multiple sets of first racks and second racks fixedly connected to both ends of the frame, the first racks and second racks being arranged opposite to each other and interleaved, a limit rod fixedly connected in the frame, a nut seat penetrating the outside of the limit rod, a rotating shaft rotatably connected in the nut seat, a rotating plate fixedly connected to the bottom of the rotating shaft, a detection component installed at the bottom of the rotating plate, a gear fixedly connected to the top of the rotating shaft, and a drive component for driving the nut seat to move on the frame.

[0006] The present invention is further configured such that the drive assembly includes a reciprocating lead screw rotatably connected to the frame and a first motor fixedly connected to the outside of the frame, wherein the output end of the first motor is fixedly connected to the reciprocating lead screw, and the reciprocating lead screw is threadedly connected to a nut seat.

[0007] A further feature of this invention is that the detection components are a smoke sensor fixedly connected to the bottom of the rotating plate and an alarm fixedly connected to the outside of the frame. A controller is also fixedly connected to the outside of the frame, and both the alarm and the smoke sensor are electrically coupled to the controller.

[0008] A further feature of this invention is that both ends of the nut seat are fixedly connected to mounting brackets, a threaded rod is rotatably connected to the mounting bracket, a nut block is threadedly connected to the outside of the threaded rod, a guide post is fixedly connected to the mounting bracket, the guide post passes through the nut block, a second motor is fixedly connected to the outside of the mounting bracket, and the output end of the second motor is fixedly connected to the threaded rod.

[0009] In a further embodiment of this invention, a rotating rod is rotatably connected to the bottom of the nut block, a spray gun is fixedly connected to the outside of the rotating rod, a valve is fixedly connected to the outside of the spray gun, a third motor is fixedly connected to the outside of the nut block, and the output end of the third motor is fixedly connected to the rotating rod.

[0010] A further feature of this invention is that a fire extinguishing tank is provided on the outside of the frame, and the output end of the fire extinguishing tank is connected to a valve on the outside of the spray gun via a pipe.

[0011] A further feature of this invention is that the valve is a solenoid valve, and the valve is electrically coupled to the controller.

[0012] The beneficial effects of this utility model are as follows: In this utility model, the device is installed in an area that needs fire protection. After installation, the drive component can drive the nut seat to move linearly back and forth, thereby driving the rotating plate to move synchronously. The detection component at the bottom of the rotating plate can monitor the protected area. In addition, during the reciprocating motion of the nut seat, the gears mesh with the first rack and the second rack, which can drive the rotating plate to rotate left and right continuously, thereby increasing the monitoring range of the external detection component of the rotating plate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of the bottom structure of the frame in this utility model;

[0016] Figure 4 yes Figure 3 A magnified structural diagram of region A in the middle.

[0017] The diagram is marked as follows:

[0018] 1. Frame; 2. First rack; 3. Second rack; 4. First motor; 5. Reciprocating lead screw; 6. Limit rod; 7. Nut seat; 8. Gear; 9. Rotating shaft; 10. Rotating plate; 11. Detection assembly; 12. Mounting bracket; 13. Second motor; 14. Threaded rod; 15. Guide column; 16. Nut block; 17. Rotating rod; 18. Third motor; 19. Spray gun; 20. Valve; 21. Alarm; 22. Controller. Detailed Implementation

[0019] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] The following is in conjunction with the appendix Figure 1-4 The present invention will be further described below.

[0021] In order to solve the problems existing in the background technology, this application proposes the following technical solution: a protection device for low-voltage installation in rail transit, including a frame 1, with multiple sets of first racks 2 and second racks 3 fixedly connected to both ends of the frame 1, the first racks 2 and the second racks 3 being arranged opposite to each other and interleaved.

[0022] In this embodiment, a limiting rod 6 is fixedly connected in the frame 1. A nut seat 7 is provided through the outside of the limiting rod 6. A rotating shaft 9 is rotatably connected in the nut seat 7. A rotating plate 10 is fixedly connected to the bottom of the rotating shaft 9. A detection component 11 is installed at the bottom of the rotating plate 10. A gear 8 is fixedly connected to the top of the rotating shaft 9. A drive assembly for driving the nut seat 7 to move is provided on the frame 1. The drive assembly includes a reciprocating lead screw 5 rotatably connected to the frame 1 and a first motor 4 fixedly connected to the outside of the frame 1. The output end of the first motor 4 is fixedly connected to the reciprocating lead screw 5. The reciprocating screw 5 is threadedly connected to the nut seat 7. The first motor 4 drives the reciprocating screw 5 to rotate, and through the guidance of the limit rod 6, it can drive the nut seat 7 to move linearly back and forth. Thus, the nut seat 7 can drive the rotating plate 10 to move synchronously. The detection component 11 at the bottom of the rotating plate 10 can monitor the protected area. During the reciprocating motion of the nut seat 7, the gear 8 meshes with the first rack 2 and the second rack 3, which can drive the rotating plate 10 to rotate left and right continuously, thereby increasing the monitoring range of the rotating plate 10.

[0023] In this embodiment, the detection component 11 is a smoke sensor fixedly connected to the bottom of the rotating plate 10 and an alarm 21 fixedly connected to the outside of the frame 1. A controller 22 is also fixedly connected to the outside of the frame 1. The alarm 21 and the smoke sensor are both electrically coupled to the controller 22. The smoke sensor is used to detect smoke, and the alarm 21 is an audible and visual alarm 21.

[0024] To achieve fire extinguishing, mounting brackets 12 are fixedly connected to both ends of the nut seat 7. A threaded rod 14 is rotatably connected to the mounting bracket 12, and a nut block 16 is threadedly connected to the outside of the threaded rod 14. A guide post 15 is fixedly connected to the mounting bracket 12, and the guide post 15 passes through the nut block 16. A second motor 13 is fixedly connected to the outside of the mounting bracket 12, and the output end of the second motor 13 is fixedly connected to the threaded rod 14. A rotating rod 17 is rotatably connected to the bottom of the nut block 16, and a spray gun 19 is fixedly connected to the outside of the rotating rod 17. A valve 20, which is a solenoid valve, is fixedly connected to the outside of the spray gun 19. Valve 20 is electrically coupled to controller 22. A third motor 18 is fixedly connected to the outside of nut block 16. The output end of the third motor 18 is fixedly connected to rotating rod 17. Fire extinguishing tank is provided on the outside of frame 1. The output end of fire extinguishing tank is connected to valve 20 outside spray gun 19 through pipe. The second motor 13 drives threaded rod 14 to rotate. Threaded rod 14 drives nut block 16 to move. Nut block 16 drives spray gun 19 to move. The third motor 18 drives spray gun 19 to adjust the angle so that spray gun 19 is aimed at the fire source. Then, by opening valve 20, fire extinguishing agent is sprayed out to extinguish the fire.

[0025] The usage method of this embodiment is as follows:

[0026] Install this device in the area that needs fire protection. After installation, start the first motor 4. The first motor 4 drives the reciprocating screw 5 to rotate. Guided by the limit rod 6, it can drive the nut seat 7 to move linearly back and forth. Thus, the nut seat 7 can drive the rotating plate 10 to move synchronously. The detection component 11 at the bottom of the rotating plate 10 can monitor the protected area.

[0027] In addition, during the reciprocating motion of the nut seat 7, the gear 8 meshes with the first rack 2 and the second rack 3 alternately, which can drive the rotating plate 10 to rotate continuously left and right, thereby increasing the monitoring range of the rotating plate 10.

[0028] Once the detection component 11 detects a fire, the controller 22 controls the alarm 21 to sound an alarm and simultaneously controls the second motor 13 to operate. The second motor 13 drives the threaded rod 14 to rotate, the threaded rod 14 drives the nut block 16 to move, the nut block 16 drives the spray gun 19 to move, and the third motor 18 drives the spray gun 19 to adjust its angle so that the spray gun 19 is aimed at the fire source. Then, by opening the valve 20, the extinguishing agent is sprayed out to extinguish the fire.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A protective device for low-voltage electrical installations in rail transit, characterized in that, The frame includes a frame (1), with multiple sets of first racks (2) and second racks (3) fixedly connected to both ends of the frame (1). The first racks (2) and second racks (3) are arranged opposite to each other and interleaved. A limit rod (6) is fixedly connected in the frame (1). A nut seat (7) is provided through the outside of the limit rod (6). A rotating shaft (9) is rotatably connected in the nut seat (7). A rotating plate (10) is fixedly connected to the bottom of the rotating shaft (9). A detection component (11) is installed at the bottom of the rotating plate (10). A gear (8) is fixedly connected to the top of the rotating shaft (9). A drive component for driving the nut seat (7) to move is provided on the frame (1).

2. The protection device for low-voltage electrical installation in rail transit according to claim 1, characterized in that, The drive assembly includes a reciprocating lead screw (5) rotatably connected to the frame (1) and a first motor (4) fixedly connected to the outside of the frame (1). The output end of the first motor (4) is fixedly connected to the reciprocating lead screw (5), and the reciprocating lead screw (5) is threadedly connected to the nut seat (7).

3. A protection device for low-voltage electrical installations in rail transit according to claim 2, characterized in that, The detection component (11) consists of a smoke sensor fixedly connected to the bottom of the rotating plate (10) and an alarm (21) fixedly connected to the outside of the frame (1). A controller (22) is also fixedly connected to the outside of the frame (1). The alarm (21) and the smoke sensor are both electrically coupled to the controller (22).

4. A protection device for low-voltage electrical installations in rail transit according to claim 3, characterized in that, Both ends of the nut seat (7) are fixedly connected to the mounting bracket (12). A threaded rod (14) is rotatably connected in the mounting bracket (12). A nut block (16) is threadedly connected to the outside of the threaded rod (14). A guide post (15) is fixedly connected in the mounting bracket (12). The guide post (15) passes through the nut block (16). A second motor (13) is fixedly connected to the outside of the mounting bracket (12). The output end of the second motor (13) is fixedly connected to the threaded rod (14).

5. A protection device for low-voltage electrical installations in rail transit according to claim 4, characterized in that, A rotating rod (17) is rotatably connected to the bottom of the nut block (16). A spray gun (19) is fixedly connected to the outside of the rotating rod (17). A valve (20) is fixedly connected to the outside of the spray gun (19). A third motor (18) is fixedly connected to the outside of the nut block (16). The output end of the third motor (18) is fixedly connected to the rotating rod (17).

6. A protection device for low-voltage electrical installations in rail transit according to claim 5, characterized in that, The frame (1) is equipped with a fire extinguishing tank on its outside, and the output end of the fire extinguishing tank is connected to a valve (20) on the outside of the spray gun (19) through a pipe.

7. A protection device for low-voltage electrical installations in rail transit according to claim 6, characterized in that, The valve (20) is a solenoid valve, and the valve (20) is electrically coupled to the controller (22).

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