Subway joint debugging and joint test fire early warning detection device
By using limit connection and dustproof net design, the problem of inconvenient disassembly of subway fire early warning detection device has been solved, realizing convenient disassembly and maintenance, and improving the practicality and detection accuracy of the device.
Patent Information
- Application Number
- CN202520511641.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-21
AI Technical Summary
The existing subway fire early warning detection device is inconvenient to disassemble and maintain, which affects the normal use of the equipment.
The device uses a limiting connection between a fixing block and a fixing groove. The main body of the testing equipment is installed on the outside of the mounting plate through the installation components. A dustproof net is designed to prevent dust from entering. Disassembly can be performed by reversing the operation.
It enables convenient disassembly and maintenance of the detection equipment, improves the practicality of the fire early warning detection device, and prevents dust from affecting the detection effect.
Smart Images

Figure CN223966955U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metro commissioning and testing technology, specifically to a fire early warning and detection device for metro commissioning and testing. Background Technology
[0002] Metro joint commissioning and testing is the final stage of the entire testing and commissioning process for urban rail transit. It comprehensively verifies and confirms the overall performance of the rail transit system, aiming to check whether the interface relationships between major systems are correct, whether their operation is coordinated, and whether their capabilities meet various possible design scenarios and operational requirements. Through testing, the availability, stability, and safety of the urban rail transit system are comprehensively verified. Metro joint commissioning and testing is a crucial step in ensuring the safe and efficient operation of the metro system. Fire early warning detection devices play a vital role in this process. As an important component of urban public transportation, the operational safety of the metro directly relates to the lives and property of passengers. Fire early warning detection devices can detect and alarm in the early stages of a fire, providing strong protection for the safe operation of the metro system.
[0003] In practical use, fire early warning detection devices are fixed using mounting bolts and nuts. The bolts are used to position the four corners to achieve installation. However, when fixing the device with bolts, tools are needed to remove each bolt individually for disassembly and maintenance. This makes disassembly and maintenance inconvenient after installation, thus affecting the normal use of the equipment. Therefore, it is particularly important to improve the existing fire early warning detection devices and design a new type of fire early warning detection device for subway joint commissioning and testing to solve the above-mentioned technical defects and improve the overall practicality of the fire early warning detection device. Utility Model Content
[0004] The purpose of this utility model is to provide a fire early warning detection device for subway commissioning and testing. A fixing block is connected to a fixing groove and a receiving groove for limiting their positions, thereby limiting the connection with a mounting plate. A connecting shell is installed inside the receiving groove, and the main body of the detection device is installed on the outside of the mounting plate. When it is necessary to disassemble the main body of the detection device, the above operation is repeated in reverse to disassemble the main body of the detection device. This facilitates the removal of the main body of the detection device from the outside of the mounting plate for maintenance and repair, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A fire early warning detection device for subway commissioning and testing includes a detection equipment body and a mounting plate. The detection equipment body is located on the outside of the mounting plate. A connecting shell is fixedly connected to one end of the detection equipment body near the mounting plate. The connecting shell contains mounting components. A dustproof net is provided at one end of the detection equipment body away from the mounting plate. The dustproof net is connected to the detection equipment body through two sets of connecting components.
[0007] The mounting assembly is used to mount the main body of the testing equipment on the outside of the mounting plate. The mounting assembly consists of two sets of rotating disks, multiple sets of rotating rods, multiple sets of moving blocks, and multiple sets of fixed blocks. The two sets of rotating disks are rotatably connected to the inside of the connecting shell. The two sets of rotating rods are respectively rotatably connected to the two ends of the bottom of the rotating disk. The moving blocks are rotatably connected to the outside of the rotating rods. The fixed blocks are fixedly connected to one end of the bottom of the moving blocks.
[0008] In a preferred embodiment of this utility model, the two sets of movable blocks are connected by two sets of sliding rods, the sliding rods are fixedly connected to the inside of the connecting shell, and the movable blocks and the sliding rods are slidably connected.
[0009] As a preferred embodiment of this utility model, the two sets of rotating disks are fixedly connected by a transmission rod, and a worm gear is rotatably connected to the outside of the connecting shell and inside the main body of the detection equipment, and a worm is meshed with the outside of the worm gear.
[0010] As a preferred embodiment of this utility model, the worm gear extends into the interior of the connecting shell and is fixedly connected to a drive rod, the end of the drive rod away from the worm gear is fixedly connected to a transmission rod, and the worm extends into the outer side of the main body of the detection equipment and is fixedly connected to a fixing rod.
[0011] As a preferred embodiment of this utility model, the mounting plate has a receiving groove at one end near the main body of the testing equipment. The mounting plate is connected to the connecting shell through the receiving groove. Each of the four sets of the receiving groove has a fixing groove, and the receiving groove is connected to the fixing block through the fixing groove.
[0012] As a preferred embodiment of this utility model, the connecting assembly consists of a connecting rod, a limiting rod, a connecting ring, and a compression spring. The connecting rod is slidably connected to the end of the main body of the detection equipment near the dustproof net. The limiting rod is fixedly connected to the end of the connecting rod near the dustproof net. The connecting ring is fixedly connected to the outside of the limiting rod. The compression spring is sleeved on the outside of the connecting ring and located on the outside of the limiting rod.
[0013] As a preferred embodiment of this utility model, the outer side of the dustproof net is provided with multiple sets of equally spaced limiting grooves, and the dustproof net is connected to the limiting rod through the limiting grooves.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. In this utility model, through the design of the installation components, the fixing block is limited to the fixing groove and the receiving groove, and then limited to the mounting plate. The connecting shell is installed inside the receiving groove, thereby installing the main body of the testing equipment on the outside of the mounting plate. When it is necessary to disassemble the main body of the testing equipment, the above operation is repeated in reverse to disassemble the main body of the testing equipment, making it convenient to remove the main body of the testing equipment from the outside of the mounting plate for maintenance and repair.
[0016] 2. In this utility model, through the design of the connecting component, when it is necessary to install the dustproof net on the outside of the main body of the detection equipment, the connecting component can easily install it on the outside of the main body of the detection equipment. The dustproof net can prevent dust from entering the interior of the main body of the detection equipment and affecting the detection of flue gas by the main body of the detection equipment. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the connecting shell structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the installation component structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the connecting component structure of this utility model.
[0021] In the diagram: 1. Main body of the testing equipment; 2. Mounting plate; 3. Connecting shell; 4. Mounting assembly; 5. Dustproof net; 6. Connecting assembly; 7. Rotating disk; 8. Rotating rod; 9. Moving block; 10. Fixed block; 11. Sliding rod; 12. Worm gear; 13. Worm; 14. Fixed rod; 15. Receiving groove; 16. Fixed groove; 17. Connecting rod; 18. Limiting rod; 19. Connecting ring; 20. Compression spring; 21. Limiting groove. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] Example:
[0024] Please see Figures 1-4 This utility model provides a technical solution:
[0025] A fire early warning detection device for subway commissioning and testing includes a detection equipment body 1 and a mounting plate 2. The detection equipment body 1 is located on the outside of the mounting plate 2. A connecting shell 3 is fixedly connected to one end of the detection equipment body 1 near the mounting plate 2. An installation component 4 is provided inside the connecting shell 3. A dustproof net 5 is provided at one end of the detection equipment body 1 away from the mounting plate 2. The dustproof net 5 is connected to the detection equipment body 1 through two sets of connecting components 6. The mounting plate 2 is fixedly connected to the subway car.
[0026] The mounting assembly 4 is used to mount the main body 1 of the testing equipment on the outside of the mounting plate 2. The mounting assembly 4 consists of two sets of rotating disks 7, multiple sets of rotating rods 8, multiple sets of moving blocks 9 and multiple sets of fixed blocks 10. Both sets of rotating disks 7 are rotatably connected to the inside of the connecting shell 3. The two sets of rotating rods 8 are rotatably connected to the two ends of the bottom of the rotating disks 7 respectively. The moving blocks 9 are rotatably connected to the outside of the rotating rods 8. The fixed blocks 10 are fixedly connected to one end of the bottom of the moving blocks 9.
[0027] Furthermore, the two sets of moving blocks 9 are connected by two sets of sliding rods 11. The sliding rods 11 are fixedly connected inside the connecting shell 3. The moving blocks 9 and the sliding rods 11 are slidably connected. When the moving blocks 9 are displaced, the two sets of sliding rods 11 can guide them to prevent displacement and affect the displacement of the fixed block 10.
[0028] Two sets of rotating disks 7 are fixedly connected by a transmission rod. A worm gear 12 is rotatably connected to the outside of the connecting shell 3 and inside the main body 1 of the testing equipment. A worm 13 is meshed with the outside of the worm gear 12. A drive rod is fixedly connected to the inside of the connecting shell 3. The end of the drive rod away from the worm gear 12 is fixedly connected to the transmission rod. A fixed rod 14 is fixedly connected to the outside of the main body 1 of the testing equipment. Rotating the fixed rod 14 drives the worm 13 to rotate, which in turn drives the worm gear 12 to rotate, which in turn drives the drive rod to rotate. When the drive rod rotates, it drives the transmission rod to rotate, which causes the two sets of rotating disks 7 to rotate, which in turn causes the two sets of rotating rods 8 to move, which in turn causes the moving block 9 to move, thereby causing the fixed block 10 to move.
[0029] Furthermore, the mounting plate 2 has a receiving groove 15 at one end near the main body 1 of the testing equipment. The mounting plate 2 is connected to the connecting shell 3 through the receiving groove 15. The receiving groove 15 has four sets of fixing grooves 16 inside. The receiving groove 15 is connected to the fixing block 10 through the fixing grooves 16. The connecting shell 3 is connected to the receiving groove 15. When the fixing block 10 is displaced, it is displaced into the inside of the fixing groove 16 and is limited to the receiving groove 15, so that it is limited to the mounting plate 2. The connecting shell 3 is installed inside the receiving groove 15, thereby installing the main body 1 of the testing equipment on the outside of the mounting plate 2.
[0030] Furthermore, the connecting assembly 6 consists of a connecting rod 17, a limiting rod 18, a connecting ring 19, and a compression spring 20. The connecting rod 17 is slidably connected to the end of the main body 1 of the detection equipment near the dustproof net 5. The limiting rod 18 is fixedly connected to the end of the connecting rod 17 near the dustproof net 5. The connecting ring 19 is fixedly connected to the outside of the limiting rod 18. The compression spring 20 is sleeved on the outside of the connecting ring 19 and located outside the limiting rod 18. When it is necessary to install the dustproof net 5 on the outside of the main body 1 of the detection equipment, the connecting assembly 6 can be used to easily install it on the outside of the main body 1 of the detection equipment. The dustproof net 5 can prevent dust from entering the interior of the main body 1 of the detection equipment and affecting the detection of flue gas by the main body 1 of the detection equipment.
[0031] Furthermore, the outer side of the dustproof net 5 has multiple sets of equally spaced limiting grooves 21. The dustproof net 5 is connected to the limiting rod 18 through the limiting grooves 21. Pulling the connecting rod 17 causes the limiting rod 18 to move, so that the limiting rod 18 moves into the interior of the main body 1 of the testing equipment, connecting the dustproof net 5 to the main body 1 of the testing equipment. Loosening the connecting rod 17, the compression spring 20, in conjunction with the connecting ring 19, causes the connecting rod 17 to move, so that the limiting rod 18 moves into the interior of the limiting groove 21 and is limited to the dustproof net 5, thus installing the dustproof net 5 on the outer side of the main body 1 of the testing equipment.
[0032] In this embodiment, the specific implementation scenario is as follows: In actual use, the main body 1 of the detection equipment is connected to the mounting plate 2, causing the connecting shell 3 to move into the interior of the receiving groove 15. The rotating fixed rod 14 drives the worm gear 13 to rotate, causing the worm wheel 12 to rotate, which in turn drives the drive rod to rotate. When the drive rod rotates, it drives the transmission rod to rotate, causing the two sets of rotating disks 7 to rotate, which in turn drives the two sets of rotating rods 8 to move, causing the moving block 9 to move, thereby causing the fixed block 10 to move. When the fixed block 10 moves, it moves into the interior of the fixed groove 16, forming a limiting connection with the receiving groove 15, and thus a limiting connection with the mounting plate 2. The connecting shell 3 is installed inside the receiving groove 15, thereby installing the main body 1 of the detection equipment on the outside of the mounting plate 2. When it is necessary to adjust the main body of the detection equipment... 1. When disassembling, repeat the above operation in reverse to disassemble the main body 1 of the detection equipment. This facilitates the removal of the main body 1 from the outside of the mounting plate 2 for maintenance and repair. Connect the dustproof net 5 to the main body 1 of the detection equipment, loosen the connecting rod 17, and use the compression spring 20 and connecting ring 19 to move the connecting rod 17, causing the limiting rod 18 to move. Move the limiting rod 18 into the limiting groove 21 and connect it with the dustproof net 5, so that the dustproof net 5 is installed on the outside of the main body 1 of the detection equipment. The dustproof net 5 can prevent dust from entering the interior of the main body 1 of the detection equipment and affecting the detection of smoke. Compared with the existing fire early warning detection device, this utility model can improve the overall practicality of the fire early warning detection device through design.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A subway joint debugging and testing fire warning detection device, comprising a detection equipment main body (1) and a mounting plate (2), characterized in that: The detection equipment body (1) is located outside the mounting plate (2), one end of the detection equipment body (1) is fixedly connected with the connecting shell (3) close to the mounting plate (2), the inside of the connecting shell (3) is provided with the mounting assembly (4), one end of the detection equipment body (1) is provided with the dust screen (5) away from the mounting plate (2), the dust screen (5) is connected with the detection equipment body (1) through two groups of connecting assemblies (6); The mounting assembly (4) is used for mounting the detection equipment body (1) outside the mounting plate (2), the mounting assembly (4) is composed of two groups of rotating discs (7), a plurality of rotating rods (8), a plurality of moving blocks (9) and a plurality of fixed blocks (10), the two groups of rotating discs (7) are both rotationally connected to the inside of the connecting shell (3), the two groups of rotating rods (8) are respectively rotationally connected to both ends of the bottom of the rotating disc (7), the moving block (9) is rotationally connected to the outside of the rotating rod (8), and the fixed block (10) is fixedly connected to one end of the bottom of the moving block (9).
2. The metro joint debugging fire warning detection device according to claim 1, characterized in that: The two groups of moving blocks (9) are connected through two groups of sliding rods (11), the sliding rod (11) is fixedly connected to the inside of the connecting shell (3), and the moving block (9) and the sliding rod (11) are in sliding connection.
3. The metro joint debugging fire warning detection device according to claim 1, characterized in that: The two groups of rotating discs (7) are fixedly connected through transmission rods, the worm wheel (12) is rotationally connected to the inside of the connecting shell (3) and located in the detection equipment body (1), and the outside of the worm wheel (12) is meshedly connected with the worm (13).
4. The metro joint debugging fire warning detection device according to claim 3, characterized in that: The worm wheel (12) extends to the inside of the connecting shell (3) and is fixedly connected with the driving rod, one end of the driving rod away from the worm wheel (12) is fixedly connected with the transmission rod, and the worm (13) extends to the outside of the detection equipment body (1) and is fixedly connected with the fixed rod (14).
5. The metro joint debugging fire warning detection device according to claim 1, characterized in that: One end of the mounting plate (2) close to the detection equipment body (1) is provided with an accommodating groove (15), the mounting plate (2) is connected with the connecting shell (3) through the accommodating groove (15), four groups of fixed grooves (16) are formed in the inside of the accommodating groove (15), and the accommodating groove (15) is connected with the fixed block (10) through the fixed groove (16).
6. The metro joint debugging fire warning detection device according to claim 1, characterized in that: The connecting assembly (6) is composed of a connecting rod (17), a limiting rod (18), a connecting ring (19) and a compression spring (20), the connecting rod (17) is slidingly connected to one end of the detection equipment body (1) close to the dust screen (5), the limiting rod (18) is fixedly connected to one end of the connecting rod (17) close to the dust screen (5), the connecting ring (19) is fixedly connected to the outside of the limiting rod (18), and the compression spring (20) is sleeved outside the connecting ring (19) and located outside the limiting rod (18).
7. The metro joint debugging fire warning detection device according to claim 6, characterized in that: A plurality of limiting grooves (21) are formed in the outside of the dust screen (5) at equal intervals, and the dust screen (5) is connected with the limiting rod (18) through the limiting groove (21).