Combustible gas detector with high protection performance

Abstract

The utility model discloses a combustible gas detector with high protection performance, and relates to the technical field of combustible gas detectors, the combustible gas detector comprises a lower protection box, an upper protection box and a take-up box, connecting plates are arranged in the lower protection box and the upper protection box, and two abutting plates are arranged between the two connecting plates. According to the device, through cooperation of the two threaded rods, the butt joint disc, the butt joint block, the clamping block, the connecting plate, the abutting plate and other structures, abutting against combustible gas detectors with different heights and high protection performance is achieved, and the flexibility and universality of the device are greatly improved; and meanwhile, through cooperation of a bidirectional threaded rod, a clamping plate and other structures, combustible gas detectors with different widths and high protection performance can be conveniently clamped, the practicability is high, and the flexibility is high.

Description

Technical Field

[0001] This application relates to the field of combustible gas detector technology, and in particular to a highly protective combustible gas detector. Background Technology

[0002] Combustible gas detectors are detectors that respond to the concentration of one or more combustible gases. Combustible gas detectors are mainly used to detect two types: toxic and combustible. Toxic gas detectors include catalytic combustion type and semiconductor type; toxic gas detectors include electrochemical type, infrared type and photoionization type. When combustible gas enters the detector, it causes an oxidation reaction on the surface of the platinum wire. The heat generated raises the temperature of the platinum wire, and the resistivity of the platinum wire changes. Infrared type detectors use infrared sensors to detect hydrocarbon combustible gases in the environment by means of the absorption principle of infrared light sources.

[0003] According to literature review, an existing patent (publication number: CN217688849U) discloses a highly protective combustible gas detector, including a combustible gas detector body. A button is fixed on the front of the combustible gas detector body, and an indicator light is fixed on the front of the combustible gas detector body above the button. A protective mechanism is provided on the outer side of the combustible gas detector body to protect it from damage when it falls.

[0004] While the aforementioned existing technology has solved the problem of some existing highly protective combustible gas detectors being damaged when dropped from heights due to lack of protection, in practical use, this existing technology can only protect one type of highly protective combustible gas detector, resulting in poor versatility. It cannot effectively protect highly protective combustible gas detectors of different specifications, leading to a limited range of applications and making it inconvenient to adjust according to the actual specifications of the protected highly protective combustible gas detector, thus reducing its practicality. In view of this, we propose a highly protective combustible gas detector to solve the above problems. Utility Model Content

[0005] In order to improve the problem of poor versatility of some existing highly protective combustible gas detectors, this application provides a highly protective combustible gas detector.

[0006] The combustible gas detector with strong protection provided in this application adopts the following technical solution:

[0007] A highly protective combustible gas detector includes a lower protective box, an upper protective box, and a cable reel box. Both the lower and upper protective boxes have connecting plates inside. Two clamping plates are positioned between the two connecting plates. A damping spring is fixedly connected between the connecting plates and the clamping plates. Guide grooves are formed on the inner walls of both sides of the lower and upper protective boxes. Threaded rods are rotatably connected inside the two guide grooves on the left side, and the two threaded rods are mirror-shaped. Limiting rods are fixedly connected inside the two guide grooves on the right side. Guide plates are slidably connected inside all four guide grooves. The two connecting plates on the left side are threaded onto the surfaces of the two threaded rods. On the right side, the two connecting plates are slidably sleeved on the surfaces of the two limiting rods. The two connecting plates are fixedly connected to the guide plates on both sides. The two threaded rods are fixedly connected to a first extension rod at their adjacent ends. The two first extension rods are rotatably inserted into the interior of the lower protective box and the upper protective box, respectively. The opposite ends of the two first extension rods are fixedly connected to a docking plate. The two docking plates are rotatably sleeved inside the lower protective box and the upper protective box, respectively. The lower docking plate has a docking groove inside, and the bottom wall of the docking groove has a locking groove. The lower surface of the upper docking plate is fixedly connected to a docking block, and the surface of the docking block is fixedly connected to a locking block.

[0008] By adopting the above technical solution, and utilizing the cooperation of structures such as two threaded rods, mating discs, mating blocks, locking blocks, connecting plates, and clamping plates, it is possible to clamp combustible gas detectors with strong protection at different heights, which greatly improves the flexibility and versatility of the device.

[0009] Preferably, the bottom of the lower protective box is provided with a first cable passage groove, and the interior of the connecting plate and the abutment plate on the lower side is provided with a second cable passage groove. The lower protective box and the upper protective box are connected to the cable take-up box through the first cable passage groove, the second cable passage groove, and the cable take-up box.

[0010] By adopting the above technical solution, it is convenient to store and route the power cord and data cable of the combustible gas detector body.

[0011] Preferably, the rear inner walls of both the lower and upper protective boxes are provided with sliding grooves, and the interiors of both sliding grooves are rotatably connected with bidirectional threaded rods. The left ends of the two bidirectional threaded rods respectively rotatably pass through the interiors of the lower and upper protective boxes. Clamping plates are threadedly fitted at the two opposite threaded sections of the two bidirectional threaded rods, and the clamping plates are slidably connected to the sliding grooves.

[0012] By adopting the above technical solution, the combination of bidirectional threaded rod and clamping plate makes it easy to clamp combustible gas detectors of different widths with strong protection, which is highly practical and flexible.

[0013] Preferably, rubber pads are provided on the opposite side surfaces of the two clamping plates.

[0014] By adopting the above technical solution, the rubber pad not only increases the friction between the clamping plate and the protective combustible gas detector housing, but also avoids damage caused by hard contact between the clamping plate and the protective combustible gas detector housing.

[0015] Preferably, a second extension rod is fixedly connected to the upper end of the threaded rod on the upper side, a groove is provided on the upper surface of the upper protective box, the upper end of the second extension rod is rotatably inserted into the interior of the groove, a knob is provided at the upper end of the second extension rod, a cavity is provided inside the knob, the second extension rod is movably inserted into the interior of the cavity, a first mating tooth is fixedly connected to the outer surface of the end of the second extension rod located inside the cavity, and a second mating tooth is fixedly connected to the bottom wall of the cavity.

[0016] By adopting the above technical solution, and with the cooperation of the knob, the first mating tooth, the second mating tooth, and other structures, the threaded rod is prevented from rotating when the knob is accidentally touched, thus improving the anti-accidental touch effect of the device and ensuring the effective clamping of the clamping plate against the highly protective combustible gas detector.

[0017] Preferably, a rotating ring is rotatably sleeved on the bottom wall of the groove, and a spring is fixedly connected between the rotating ring and the knob, the spring being movably sleeved on the outside of the second extension rod.

[0018] By adopting the above technical solution, the knob can be easily reset by the cooperation of the rotating ring and the spring.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. By utilizing the cooperation of two threaded rods, mating discs, mating blocks, locking blocks, connecting plates, and clamping plates, the device can clamp combustible gas detectors of different heights with strong protection, greatly improving the flexibility and versatility of the device. At the same time, the cooperation of bidirectional threaded rods and clamping plates also makes it easy to clamp combustible gas detectors of different widths with strong protection, making it highly practical and flexible.

[0021] 2. By utilizing the cooperation of the knob, the first mating teeth, the second mating teeth, the spring, and the rotating ring, the screw rod is prevented from rotating when the knob is accidentally touched, thus improving the device's anti-accidental touch effect and ensuring the effective clamping of the clamping plate against the highly protective combustible gas detector.

[0022] 3. The rubber pad not only increases the friction between the clamping plate and the protective combustible gas detector housing, but also avoids damage caused by hard contact between the clamping plate and the protective combustible gas detector housing. Attached Figure Description

[0023] Figure 1 This is an overall schematic diagram of the present application;

[0024] Figure 2 This is a cross-sectional view of the lower protective box of this application;

[0025] Figure 3 This is a schematic cross-sectional view of the docking plate in this application;

[0026] Figure 4 This is a cross-sectional view of the knob in this application;

[0027] Figure 5 For the purposes of this application Figure 2 Enlarged diagram of point A in the middle.

[0028] Reference numerals: 1. Lower protective box; 2. Upper protective box; 3. Connecting plate; 4. Abutting plate; 5. Damping spring; 6. Guide groove; 7. Threaded rod; 8. Guide plate; 9. First extension rod; 10. Connecting plate;

[0029] 11. Connecting groove; 12. Engaging groove; 13. Connecting block; 14. Engaging block; 15. Take-up box; 16. First through groove; 17. Second through groove; 18. Limiting rod; 19. Sliding groove; 20. Two-way threaded rod;

[0030] 21. Clamping plate; 22. Rubber pad; 23. Second extension rod; 24. Knob; 25. Cavity; 26. First mating tooth; 27. Second mating tooth; 28. Spring; 29. ​​Groove; 30. Rotating ring. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0032] This application discloses a highly protective combustible gas detector.

[0033] Reference Figures 1-5A highly protective combustible gas detector includes a lower protective box 1, an upper protective box 2 for protecting the detector, and a cable tray 15 for storing the power cord and data cable of the detector. Both the lower and upper protective boxes 1 and 2 have connecting plates 3 inside. Two clamping plates 4 are positioned between the connecting plates 3 to press against the combustible gas detector. A damping spring 5 is fixedly connected between the connecting plates 3 and the clamping plates 4, providing a buffer. Moving the connecting plates 3 moves the clamping plates 4. Guide grooves 6 are provided on the inner walls of both sides of the lower and upper protective boxes 1 and 2 to restrict the movement trajectory of the structure. The two guide grooves 6 on the left side are rotatably connected to threaded rods 7 for transmission, and the two threaded rods 7 are mirror-shaped. The two guide grooves 6 on the right side are fixedly connected to limiting rods 18 to restrict the movement trajectory. Guide plates 8 are slidably connected inside all four guide grooves 6.

[0034] The two connecting plates 3 on the left are threaded onto the surfaces of the two threaded rods 7, and the two connecting plates 3 on the right are slidably fitted onto the surfaces of the two limiting rods 18. When the connecting plates 3 move, the two guide plates 8 on the right slide on the outer surfaces of the two limiting rods 18. The two connecting plates 3 are fixedly connected to the guide plates 8 on both sides. The rotation of the two threaded rods 7 can drive the guide plates 8 to move relative to or in opposite directions, thereby driving the connecting plates 3 to move relative to or in opposite directions. The two threaded rods 7 are fixedly connected to the same first extension rod 9 at their adjacent ends, which also serve a connecting function. The rotation of the upper threaded rod 7 can drive the rotation of the upper first extension rod 9.

[0035] Two first extension rods 9 are respectively rotatably inserted into the interior of the lower protective box 1 and the upper protective box 2. Each of the opposite ends of the two first extension rods 9 is fixedly connected to a docking plate 10 for easy connection. Rotation of the upper first extension rod 9 drives the rotation of the upper docking plate 10. The two docking plates 10 are respectively rotatably fitted inside the lower protective box 1 and the upper protective box 2, and are flush with the end faces of the lower and upper protective boxes 1 and 2. The lower docking plate 10 has a docking groove 11 inside, and a locking groove 12 is formed on the bottom wall of the docking groove 11. A docking block 13 is fixedly connected to the lower surface of the upper docking plate 10, and a locking block 14 is fixedly connected to the surface of the docking block 13. By rotating the upper protective box 2... When the lower protective box 1 and the upper protective box 2 are connected, the two connecting plates 10 will be aligned, so the connecting block 13 will be inserted into the interior of the connecting groove 11, and the locking block 14 will be inserted into the interior of the locking groove 12. The connecting groove 11 and the connecting block 13 are compatible, and the locking groove 12 and the locking block 14 are compatible. With the cooperation of the connecting block 13, the locking block 14, the connecting groove 11 and the locking groove 12, the rotation of the upper connecting plate 10 will drive the rotation of the lower connecting plate 10. The rotation of the lower connecting plate 10 will drive the rotation of the lower first extension rod 9. The rotation of the lower first extension rod 9 will drive the rotation of the lower threaded rod 7, and finally achieve the synchronous rotation of the two threaded rods 7.

[0036] Among them, the threads, pitch, length and thread shape of the two threaded rods 7 are the same.

[0037] The bottom of the lower protective box 1 is provided with a first wire passage groove 16 for wire passage, and the interior of the lower connecting plate 3 and the abutment plate 4 is provided with a second wire passage groove 17 for wire passage. The lower protective box 1 and the upper protective box 2 are connected to the wire take-up box 15 through the first wire passage groove 16, the second wire passage groove 17 and the wire take-up box 15.

[0038] Both the lower protective box 1 and the upper protective box 2 have sliding grooves 19 on their rear inner walls to restrict the movement trajectory of the structure. Both sliding grooves 19 are rotatably connected to bidirectional threaded rods 20. The left ends of the two bidirectional threaded rods 20 respectively rotatably pass through the interior of the lower protective box 1 and the upper protective box 2. The two opposite threads of the two bidirectional threaded rods 20 are threaded with clamping plates 21 for clamping the combustible gas detector. The rotation of the bidirectional threaded rods 20 can drive the two clamping plates 21 to slide inside the sliding grooves 19. The clamping plates 21 and the sliding grooves 19 are slidably connected.

[0039] Rubber pads 22 are provided on the opposite side surfaces of the two clamping plates 21. The rubber pads 22 not only increase the friction between the clamping plates 21 and the protective combustible gas detector housing, but also prevent damage caused by hard contact between the clamping plates 21 and the protective combustible gas detector housing.

[0040] The upper end of the upper threaded rod 7 is fixedly connected to a second extension rod 23, which serves as a connecting element. Rotation of the second extension rod 23 drives the rotation of the upper threaded rod 7. The upper surface of the upper protective box 2 has a groove 29. The upper end of the second extension rod 23 rotates and passes through the interior of the groove 29. The upper end of the second extension rod 23 is provided with a knob 24 for easy gripping. The inside of the knob 24 has a cavity 25. The second extension rod 23 moves through the interior of the cavity 25. The outer surface of the end of the second extension rod 23 located inside the cavity 25 is fixedly connected to a first mating tooth 26. The bottom wall of the cavity 25 is fixedly connected to a second mating tooth 27. By pulling the knob 24 upward, the knob 24 will slide outside the second extension rod 23. During the upward movement of the knob 24, the first mating tooth 26 will engage with the second mating tooth 27. Then, by rotating the knob 24, the second extension rod 23 can be rotated through the engagement of the first mating tooth 26 and the second mating tooth 27.

[0041] A rotating ring 30 is rotatably sleeved on the bottom wall of the groove 29. A spring 28 is fixedly connected between the rotating ring 30 and the knob 24 to facilitate the reset of the knob 24. The spring 28 is movably sleeved on the outside of the second extension rod 23. When the knob 24 is rotated, the rotating ring 30 will rotate on the bottom wall of the groove 29 due to the setting of the spring 28.

[0042] The fixing method between the upper protective box 1, the lower protective box 2 and the take-up box 15 can refer to the existing technology with publication number CN217688849U, so it will not be described in detail here.

[0043] The implementation principle of a highly protective combustible gas detector according to an embodiment of this application is as follows: First, the power cord and data cord on the lower side of the combustible gas detector body are passed through the first through groove 16 and the second through groove 17 opened inside the lower protective box 1.

[0044] Then, by connecting the upper protective box 2 and the lower protective box 1, the two connecting discs 10 will align when the lower protective box 1 and the upper protective box 2 are connected. This causes the connecting block 13 to engage with the inside of the connecting groove 11, and the engaging block 14 to engage with the inside of the engaging groove 12. Subsequently, by pulling the knob 24 upwards, the knob 24 will slide outside the second extension rod 23. During the upward movement of the knob 24, the first connecting tooth 26 and the second connecting tooth 27 will engage with each other. Then, by rotating the knob 24, the second extension rod 23 can be rotated through the engagement of the first connecting tooth 26 and the second connecting tooth 27. The rotation of the second extension rod 23 will drive the rotation of the upper threaded rod 7, which in turn will drive the rotation of the upper first extension rod. The rotation of rod 9, through the rotation of the upper first extension rod 9, drives the rotation of the upper docking plate 10. At this time, with the cooperation of docking block 13, locking block 14, docking groove 11 and locking groove 12, the lower docking plate 10 will be rotated. The rotation of the lower docking plate 10 will drive the rotation of the lower first extension rod 9. The rotation of the lower first extension rod 9 will drive the rotation of the lower threaded rod 7, ultimately achieving synchronous rotation of the two threaded rods 7. Since the two threaded rods 7 are mirror images, the rotation of the two threaded rods 7 can drive the guide plate 8 to move relative to or opposite to each other, thereby driving the connecting plate 3 to move relative to or opposite to each other. The movement of the connecting plate 3 can drive the movement of the pressing plate 4, ultimately achieving the pressing of the upper and lower ends of the combustible gas detector body.

[0045] Meanwhile, when the connecting plate 3 moves, the two guide plates 8 on the right side will slide on the outer surface of the two limit rods 18 respectively. When the knob 24 is rotated, the rotating ring 30 will rotate on the bottom wall of the groove 29 due to the setting of the spring 28.

[0046] Then, by rotating the lower bidirectional threaded rod 20, the two clamping plates 21 on the lower side can be driven to slide inside the sliding groove 19, so that the rubber pad 22 and the housing of the combustible gas detector body can contact and clamp, thereby realizing the clamping of combustible gas detector bodies of different widths.

[0047] Then rotate the upper bidirectional threaded rod 20 so that the two upper clamping plates 21 also clamp the combustible gas detector body. After the fixation is completed, fix the lower protective box 1 and the upper protective box 2.

[0048] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A highly protective combustible gas detector, characterized by: The system includes a lower protective box (1), an upper protective box (2), and a take-up box (15). Both the lower and upper protective boxes (1 and 2) have connecting plates (3) inside. Two abutting plates (4) are positioned between the two connecting plates (3). A damping spring (5) is fixedly connected between the connecting plates (3) and the abutting plates (4). Guide grooves (6) are provided on the inner walls of both sides of the lower and upper protective boxes (1 and 2). Threaded rods (7) are rotatably connected inside the two guide grooves (6) on the left side. The two threaded rods (7) are mirror images of each other. Limiting rods (18) are fixedly connected inside the two guide grooves (6) on the right side. Guide plates (8) are slidably connected inside the four guide grooves (6). The two connecting plates (3) on the left side are threaded onto the surfaces of the two threaded rods (7). The two connecting plates (3) on the right side... Plate (3) is slidably sleeved on the surface of two limiting rods (18). The two connecting plates (3) are fixedly connected to the guide plates (8) on both sides. The two threaded rods (7) are fixedly connected to the first extension rod (9) at their close ends. The two first extension rods (9) are rotatably inserted into the interior of the lower protective box (1) and the upper protective box (2). The two first extension rods (9) are fixedly connected to the docking plate (10) at their opposite ends. The two docking plates (10) are rotatably sleeved in the interior of the lower protective box (1) and the upper protective box (2). The lower docking plate (10) has a docking groove (11) inside. The bottom wall of the docking groove (11) has a locking groove (12). The lower surface of the upper docking plate (10) is fixedly connected to a docking block (13). The surface of the docking block (13) is fixedly connected to a locking block (14).

2. A combustible gas detector according to claim 1, wherein: The bottom of the lower protective box (1) is provided with a first wire channel (16), and the interior of the lower connecting plate (3) and the abutment plate (4) is provided with a second wire channel (17). The lower protective box (1) and the upper protective box (2) are connected to the second wire channel (17) and the take-up box (15) through the first wire channel (16).

3. A combustible gas detector according to claim 2, wherein: The rear inner walls of the lower protective box (1) and the upper protective box (2) are provided with sliding grooves (19), and the interiors of the two sliding grooves (19) are rotatably connected with bidirectional threaded rods (20). The left ends of the two bidirectional threaded rods (20) respectively rotatably pass through the interiors of the lower protective box (1) and the upper protective box (2).

4. A combustible gas detector according to claim 3, wherein: Each of the two bidirectional threaded rods (20) has a clamping plate (21) threadedly fitted at the two opposite threads, and the clamping plate (21) and the sliding groove (19) are slidably connected.

5. A combustible gas detector according to claim 4, wherein: Rubber pads (22) are provided on the opposite side surfaces of the two clamping plates (21).

6. A combustible gas detector according to claim 1, wherein: The upper end of the threaded rod (7) on the upper side is fixedly connected to a second extension rod (23). The upper surface of the upper protective box (2) is provided with a groove (29). The upper end of the second extension rod (23) rotates and penetrates into the interior of the groove (29). The upper end of the second extension rod (23) is provided with a knob (24). The inside of the knob (24) is provided with a cavity (25).

7. A combustible gas detector according to claim 6, wherein: The second extension rod (23) is movably inserted into the interior of the cavity (25). The outer surface of one end of the second extension rod (23) located inside the cavity (25) is fixedly connected with a first mating tooth (26), and the bottom wall of the cavity (25) is fixedly connected with a second mating tooth (27).

8. A combustible gas detector according to claim 7, wherein: A rotating ring (30) is rotatably sleeved on the bottom wall of the groove (29). A spring (28) is fixedly connected between the rotating ring (30) and the knob (24). The spring (28) is movably sleeved on the outside of the second extension rod (23).

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