Explosion-proof tail light with cable clamping and fixing function

Abstract

This application relates to the field of explosion-proof lights and discloses an explosion-proof taillight with cable clamping and fixing function, including a mounting base, a lamp cover, and a lamp body. The mounting base has an inner cavity with a through hole for the cable to pass through. Two clamps are arranged in the inner cavity of the mounting base, with a clamping gap between them. Each clamp has an inclined first guide wall at its far end. A push ring is slidably arranged in the mounting base, with its inner wall abutting against the first guide walls of the two clamps. The push ring has a locking element for fixing itself in the mounting base. This application allows the push ring to drive the two clamps to move, clamping and fixing the cable. When the cable is subjected to external force, the wires inside the cable are less likely to disconnect from the terminals, thus making the explosion-proof taillight less prone to failure. This improves the effectiveness of addressing the problem of unstable cable installation in explosion-proof taillights.

Description

Technical Field

[0001] This application relates to the field of explosion-proof lights, and in particular to an explosion-proof taillight with cable clamping and fixing function. Background Technology

[0002] Explosion-proof lamps are lamps used in hazardous locations where flammable gases and dust exist. They are designed to prevent electric arcs, sparks, and high temperatures generated inside the lamp from igniting flammable gases and dust in the surrounding environment, thereby meeting explosion-proof requirements.

[0003] Currently, explosion-proof taillights consist of a mounting base, a lamp cover, and a lamp body. The lamp body is mounted on the mounting base, and the lamp cover is placed over the lamp body and fixedly mounted on the mounting base. The mounting base is fixedly mounted on equipment or a wall, thus mounting the lamp body on the equipment or wall. The mounting base has a through hole, through which the wires in the cable pass and connect to the lamp body, thereby supplying power to the lamp body.

[0004] Regarding the aforementioned technologies, explosion-proof taillights are used in hazardous locations. During use, the cables supplying power to the explosion-proof taillights are easily pulled by external forces. At this time, the wires inside the cable are easily pulled off the terminals. The moment the wires fall off, an electric arc can be generated, which may cause an explosion, thus causing the explosion-proof taillights to malfunction. The inventor believes that there is a defect that the explosion-proof taillights are prone to malfunction due to the unstable installation of the explosion-proof taillight cables. Summary of the Invention

[0005] In order to improve the problem of explosion-proof taillights being prone to failure due to unstable installation of explosion-proof taillight cables, this application provides an explosion-proof taillight with cable clamping and fixing function.

[0006] The explosion-proof taillight with cable clamping and fixing function provided in this application adopts the following technical solution: An explosion-proof taillight with cable clamping and fixing function includes a mounting base, a lamp cover, and a lamp body. The mounting base has an inner cavity, and both ends of the mounting base have through holes for cables to pass through. The mounting base has two clamps in the inner cavity, and a clamping gap for cables to pass through is formed between the two clamps. The ends of the two clamps that are far apart from each other have inclined first guide walls. A push ring is slidably disposed in the mounting base in the inner cavity. The inner side wall of the push ring abuts against the first guide walls of the two clamps, and the push ring is provided with a locking element for fixing itself in the mounting base.

[0007] By adopting the above technical solution, when installing the explosion-proof taillight, the cable is inserted into the inner cavity of the mounting base through the through hole. The cable first passes through the clamping gap between the two clamps, then passes through the mounting base through another through hole and connects to the lamp body. The push ring is pushed towards the clamps, and the inner wall of the push ring abuts against the two second guide walls, thereby driving the two clamps to move towards the clamping gap. The two clamps move and clamp the cable. A locking device is then used to fix the push ring inside the mounting base, thus securing the cable in place. This configuration, using clamps to hold and fix the cable, makes the cable installation within the mounting base more stable. When the cable is subjected to external force, the two clamps hold and fix the cable, making it difficult for the wires inside the cable to disconnect from the terminals, thus reducing the likelihood of malfunctions in the explosion-proof taillight.

[0008] Preferably, a support ring is slidably disposed in the inner cavity of the mounting base, and the two grippers are disposed on the same side wall of the support ring. An elastic pad is disposed in the inner cavity of the mounting base on the side of the support ring away from the push ring. The elastic pad has a through hole, one side of the elastic pad abuts against the mounting base, and the other side abuts against the support ring.

[0009] By adopting the above technical solution, during cable installation, the cable first enters the inner cavity of the mounting base through the perforation, then passes sequentially through the through hole, support ring, clamping gap, and push ring. When clamping the cable, the push ring slides, pushing the jaws to slide. The jaws then drive the support ring to slide, which in turn pushes the elastic pad to slide. When the elastic pad abuts against the bottom wall of the mounting base within the inner cavity, the push ring drives the two jaws to clamp the cable. With this configuration, when the cable is subjected to external force, the cable is compressed against the elastic pad by the jaws and support ring, causing the elastic pad to deform slightly and thus buffering the tension, making it less likely for the cable sheath held by the jaws to tear.

[0010] Preferably, the mounting base is provided with a slide rail on the side wall of the inner cavity, and the push ring is provided with a slide groove, and the push ring is slidably mounted on the slide rail along its own axis through the slide groove.

[0011] By adopting the above technical solution, the push ring slides on the slide rail through the slide groove. The slide rail and the slide groove cooperate to limit the sliding of the push ring, making the sliding of the push ring more stable.

[0012] Preferably, a limiting post is provided on the side wall of the support ring near the elastic pad, a limiting groove is provided on the elastic pad, and the limiting post is slidably disposed in the limiting groove along the sliding direction of the support ring.

[0013] By adopting the above technical solution, the limiting post of the support ring is inserted into the limiting groove of the elastic pad. The limiting post and the limiting groove cooperate to limit the sliding of the elastic pad, making the sliding of the elastic pad more stable.

[0014] Preferably, the mounting base has a limiting sleeve in the through hole near one end of the lamp body for the wires inside the cable to pass through, and the limiting sleeve has a fixing member for fixing the wires.

[0015] By adopting the above technical solution, the conductor inside the cable passes through the limiting sleeve, then through the mounting base and connects to the lamp body. The fixing component inside the limiting sleeve fixes the conductor, thereby further improving the stability of the cable installed in the mounting base.

[0016] Preferably, the two grippers are provided with a plurality of ratchet plates at intervals on their sidewalls that are close to each other to increase the friction between the grippers and the cable.

[0017] By adopting the above technical solution, after the two jaws clamp and fix the cable, the ratchet increases the friction between the jaws and the cable sheath, thereby making the clamping of the cable by the jaws more stable.

[0018] Preferably, two push rods are slidably disposed inside the elastic pad along the vertical cable length direction. The limiting post abuts against the push rods and drives the push rods to slide. The two push rods are respectively located on both sides of the through hole. The push rods extend into the through hole, and the ends of the push rods located in the through hole are provided with clamping plate assemblies for clamping the cable and buffering the cable pull.

[0019] By adopting the above technical solution, when the support ring pushes the elastic pad to move, the support ring simultaneously drives the limiting post to slide in the limiting groove. The limiting post slides and drives the push rod to slide. The push rod slides and drives the clamping plate assembly to move. When the support ring pushes the elastic pad to abut against the bottom wall of the mounting seat located in the inner cavity, the two clamping plate assemblies move and clamp the cable, thereby further clamping and fixing the cable.

[0020] Preferably, the end of the limiting post near the push rod has a first inclined wall, and the end of the push rod near the limiting post has a second inclined wall. The first inclined wall of the limiting post is adapted to abut against the second inclined wall of the push rod, and the limiting post drives the push rod to slide towards the through hole.

[0021] By adopting the above technical solution, the limiting post drives the first inclined wall to move during the movement process. The first inclined wall abuts against and fits against the second inclined wall and cooperates with the second inclined wall, thereby enabling the limiting post to drive the push rod to move.

[0022] Preferably, the clamping plate assembly includes a base, a sliding plate, and an elastic buffer. The base is fixedly mounted on the end of the push rod. The sliding plate is slidably mounted on the side wall of the base away from the push rod along the length of the cable. The elastic buffer is disposed inside the base. A limiting push block is provided on the side wall of the sliding plate near the base. One end of the elastic buffer abuts against the inner side wall of the base, and the other end of the elastic buffer abuts against the limiting push block.

[0023] By adopting the above technical solution, the push rod drives the base to move, the base drives the sliding plate to move, and the sliding plate abuts against the cable to clamp and fix the cable. When the cable is pulled by an external force, the cable drives the two sliding plates to slide on the base. The movement of the sliding plates drives the limiting push block to slide, and the limiting push block moves and squeezes the elastic buffer. The elastic buffer deforms and buffers the tension. With this configuration, the clamping plate assembly can clamp the cable, making the cable more stable in the mounting bracket. On the other hand, it can buffer the tension on the cable, and with the elastic pad, it can achieve secondary buffering of tension, thus making the cable jacket held by the claw less likely to tear.

[0024] Preferably, the elastic pad has an installation groove, and an elastic reset member is provided in the installation groove. A reset ring is provided on the push rod. The reset ring abuts against the end of the elastic reset member away from the clamping plate assembly, and the end of the elastic reset member near the clamping plate assembly abuts against the bottom wall of the installation groove.

[0025] By adopting the above technical solution, when the cable does not pass through the through hole of the elastic pad, the elastic element in the mounting groove acts on the push rod through the reset ring, so that the push rod drives the clamping plate assembly to move and abut against the side wall of the elastic pad located in the through hole, thereby moving the two clamping plate assemblies away from each other, making it easier for the cable to pass through the through hole of the elastic pad.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By using a push ring to drive two grippers to move towards the clamping gap, the two grippers move and clamp the cable. Then, a locking device is used to fix the push ring in the mounting base, so that the grippers hold the cable in place. This makes the cable more stable when installed in the mounting base. When the cable is pulled by external force, the two grippers hold and fix the cable, making it difficult for the wires in the cable to disconnect from the terminals, thus making the explosion-proof taillight less prone to failure. 2. By using elastic pads, when the cable is pulled by external force, the cable is squeezed by the clamps and support rings, and the elastic pads undergo slight deformation to buffer the tension, making it less likely for the cable jacket held by the clamps to tear. 3. By using a clamping plate assembly, the cable can be clamped, making the cable more stable in the mounting bracket. On the other hand, it can buffer the tension on the cable and, together with the elastic pad, achieve secondary buffering of tension, so that the cable jacket held by the clamping claw is not easily torn. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the explosion-proof taillight in Embodiment 1 of this application; Figure 2 This is a frontal explosion diagram of the overall structure of the explosion-proof taillight in Embodiment 1 of this application; Figure 3 This is a reverse explosion schematic diagram of the overall structure of the explosion-proof taillight in Embodiment 1 of this application; Figure 4 This is a cross-sectional view of the overall structure of the explosion-proof taillight in Embodiment 1 of this application; Figure 5 This is a cross-sectional view of the connector of the explosion-proof taillight in Embodiment 1 of this application; Figure 6 This is a frontal explosion diagram of the explosion-proof taillight in Embodiment 1 of this application, highlighting a portion of the gripper structure. Figure 7 This is a reverse explosion schematic diagram of the explosion-proof taillight in Embodiment 1 of this application, highlighting a portion of the gripper structure; Figure 8 This application Figure 7 Enlarged view of point A in the middle; Figure 9 This is a partial structural cross-sectional view of the explosion-proof taillight in Embodiment 2 of this application, highlighting the internal structure of the elastic pad. Figure 10 This is an exploded cross-sectional view of a portion of the structure of the explosion-proof taillight in Embodiment 2 of this application, highlighting the clamp assembly. Figure 11 This is an exploded cross-sectional view of part of the base structure of the explosion-proof taillight in Embodiment 2 of this application, highlighting the internal structure of the base.

[0028] Explanation of reference numerals in the attached drawings: 1. Mounting base; 11. Connecting base; 12. Lamp holder; 13. Connecting plate; 2. Lamp cover; 3. Lamp body; 4. Inner cavity; 5. Through hole; 6. Clamping claw; 7. Clamping gap; 8. First guide wall; 9. Push ring; 10. Locking element; 14. Support ring; 15. Elastic pad; 16. Through hole; 17. Slide rail; 18. Slide groove; 19. Limiting post; 20. Limiting groove; 21. Limiting sleeve; 22. Fixing element; 23. Ratchet; 24. Push 25. Rod; 25. Clamping plate assembly; 251. Base; 252. Slide plate; 253. Elastic buffer; 26. First inclined wall; 27. Second inclined wall; 28. Limiting push block; 29. ​​Mounting groove; 30. Elastic reset component; 31. Reset ring; 32. Round hole; 33. Second guide wall; 34. Fixing seat; 35. Snap-fit ​​corner; 36. Snap-fit ​​groove; 37. Circuit board; 38. Sliding groove; 39. Receiving cavity; 40. Sliding strip hole; 41. Deformation groove. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail.

[0030] This application discloses an explosion-proof taillight with cable clamping and fixing function.

[0031] Example 1: Reference Figure 1 and 2 An explosion-proof taillight with cable clamping and fixing function includes a mounting base 1 fixedly installed on equipment or a wall. A lamp body 3 is fixedly installed on the top of the mounting base 1, and a lamp cover 2 is detachably installed on the top of the mounting base 1, covering the lamp body 3. In this application, the lamp body 3 can be selected as an LED lamp. A cable passes through the mounting base 1 and connects to the lamp body 3, thereby supplying power to the lamp body 3.

[0032] Reference Figure 2 and 3 Specifically, the mounting base 1 consists of a connecting base 11, a connecting plate 13, and a lamp holder 12. The connecting base 11 is fixedly installed on the equipment or wall. The connecting plate 13 is fixedly installed on the top of the connecting base 11 by four bolts. The lamp holder 12 is fixedly installed on the side wall of the connecting plate 13 away from the connecting base 11 by four bolts. The lamp body 3 is fixedly installed on the side wall of the lamp holder 12 away from the connecting plate 13, and the lamp cover 2 is threadedly detachably installed on the end of the lamp holder 12 away from the connecting plate 13.

[0033] Reference Figure 2 and 4Both the bottom center of the connector 11 and the center of the connector plate 13 have through holes 5. A limiting sleeve 21 is fixedly inserted into the connector plate 13 within the through holes 5. A circuit board 37 is fixedly installed inside the lamp holder 12, and a round hole 32 is opened at the top center of the lamp holder 12. The cable passes through the through holes 5 of the connector 11 into the connector 11. The wires inside the cable pass through the limiting sleeve 21, through the connector plate 13, and into the lamp holder 12 to connect with the circuit board 37. The wires on the circuit board 37 pass through the round hole 32 into the lamp holder 12 and connect with the lamp body 3, thereby supplying power to the lamp body 3.

[0034] Two limiting sleeves 21 are provided, with their ends located in the connecting seat 11 and the lamp holder 12, respectively. Both ends of the sidewalls of the limiting sleeves 21 are threaded with fixing members 22. In this application, the fixing members 22 can be bolts. After the cable conductor passes through the limiting sleeve 21, rotating the fixing member 22 causes its end to press against the conductor, thereby fixing the conductor inside the limiting sleeve 21.

[0035] Reference Figure 4 An inner cavity 4 is formed between the bottom end of the connecting seat 11 and the connecting plate 13. A push ring 9 is slidably installed in the inner cavity 4 of the connecting seat 11. A support ring 14 is also slidably installed in the inner cavity 4 of the connecting seat 11, and the support ring 14 is located on the side of the push ring 9 away from the connecting plate 13. Two clamping claws 6 are integrally fixedly installed on the side wall of the support ring 14 near the push ring 9. The two clamping claws 6 are installed at intervals, and a clamping gap 7 is formed between the side walls of the two clamping claws 6 that are close to each other. The cable enters the inner cavity 4 through the through hole 5 of the connecting seat 11, passes through the clamping gap 7, and then exits the inner cavity 4 through the limiting sleeve 21.

[0036] Reference Figure 6 and 7 Furthermore, inclined first guide walls 8 are formed on the sidewalls of the two grippers 6 that are far apart from each other. The thickness of the grippers 6 gradually increases from the push ring 9 toward the support ring 14. An annular second guide wall 33 is formed on the inner sidewall of the push ring 9 near the grippers 6. The width of the cross-section of the push ring 9 gradually decreases from the push ring 9 toward the support ring 14, and the second guide wall 33 of the push ring 9 fits and abuts against the first guide wall 8 of the two grippers 6. Pushing the push ring 9 toward the support ring 14 causes the push ring 9 to move the support ring 14 through the two grippers 6. When the support ring 14 moves and abuts against the bottom wall of the connecting seat 11 located in the inner cavity 4, the push ring 9 is pushed further. At this time, the push ring 9 drives the two grippers 6 to move toward the clamping gap 7 through the cooperation of the second guide wall 33 and the first guide wall 8 of the grippers 6, thereby causing the two grippers 6 to clamp the cable in the clamping gap 7.

[0037] Reference Figure 5 and 6Two locking elements 10 are installed on the push ring 9. Two fixing seats 34 are integrally and symmetrically fixed to the bottom of the inner wall of the connecting seat 11. In this application, the locking elements 10 can be bolts, and the locking elements 10 are threaded into the fixing seats 34. Rotating the two locking elements 10 can drive the push ring 9 to move and fix it in the connecting seat 11. When the push ring 9 drives the support ring 14 to move to the bottom wall of the inner cavity 4 of the connecting seat 11, the push ring 9 abuts against the two clamps 6, so that the two clamps 6 can firmly clamp and fix the cable. When the cable is pulled by external force, the two clamps 6 clamp and fix the cable, so that the wires in the cable are not easily disconnected from the terminals, thus making the explosion-proof taillight less prone to failure.

[0038] Reference Figure 7 and 8 Furthermore, three ratchet plates 23 are fixedly installed at intervals on the side wall of the clamping jaws 6 near the clamping gap 7. The ratchet plates 23 are installed along the width direction of the cable, and the three ratchet plates 23 are installed at equal intervals along the length direction of the cable. The end of the ratchet plate 23 located away from the support ring 14 protrudes outward towards the clamping gap 7 to form a snap-fit ​​angle 35, and a snap-fit ​​groove 36 is formed between every two ratchet plates 23. When the two clamping jaws 6 clamp and fix the cable, the ratchet plates 23 of the clamping jaws 6 abut against the cable sheath. At this time, the snap-fit ​​angle 35 squeezes the cable sheath, causing the cable sheath to deform slightly and enter into the snap-fit ​​groove 36. When the cable is pulled by external force, the cable sheath located in the snap-fit ​​groove 36 increases the friction between the cable and the clamping jaws 6, thereby making the clamping jaws 6 clamp the cable more firmly.

[0039] Reference Figure 5 and 6 The connecting seat 11 has two slide rails 17 fixedly installed on the side wall of the inner cavity 4. The two slide rails 17 are symmetrically and integrally installed on opposite sides of the side wall of the inner cavity 4 of the connecting seat 11, and are installed along the axis of the push ring 9. The opposite sides of the outer wall of the push ring 9 are symmetrically provided with slide grooves 18. The slide rails 17 are fitted into the slide grooves 18, and the push ring 9 slides on the slide rails 17 through the slide grooves 18. The cooperation between the slide rails 17 and the slide grooves 18 makes it less likely for the push ring 9 to deflect when sliding, thus making the sliding of the push ring 9 more stable.

[0040] Reference Figure 4 and 6An elastic pad 15 is installed in the inner cavity 4 of the connecting seat 11. The elastic pad 15 is located on the side of the support ring 14 away from the push ring 9, and one side wall of the elastic pad 15 abuts against the support ring 14, while the other side wall abuts against the bottom wall of the inner cavity 4 of the connecting seat 11. A through hole 16 is provided in the middle of the elastic pad 15. In this application, the elastic pad 15 can be a rubber block. The cable first enters the inner cavity 4 of the mounting seat 1 through the through hole 5, and then passes through the through hole 16, the support ring 14 and the clamping gap 7 in sequence. When the cable is pulled by an external force, the cable squeezes the elastic pad 15 through the clamp 6 and the support ring 14. The elastic pad 15 undergoes slight deformation to buffer the pulling force, making it less likely for the cable jacket held by the clamp 6 to tear.

[0041] Reference Figure 6 and 7 Two limiting posts 19 are fixedly installed along their own axis on the side wall of the support ring 14 near the elastic pad 15. Two limiting grooves 20 are formed on the side wall of the elastic pad 15 near the support block. The limiting posts 19 are slidably installed within the limiting grooves 20 along their own length. The limiting posts 19 and the limiting grooves 20 cooperate to limit the sliding of the elastic pad 15, making the sliding of the elastic pad 15 more stable and less prone to deflection. A deformation groove 41 is formed in the middle of the outer side wall of the elastic pad 15. The cross-section of the deformation groove 41 is V-shaped, and the bottom end of the deformation groove 41 faces the middle position of the elastic pad 15. The deformation groove 41 facilitates the deformation of the elastic pad 15, thereby improving the cushioning effect of the elastic pad 15.

[0042] The implementation principle of Embodiment 1 of this application is as follows: The cable first enters the inner cavity 4 of the mounting base 1 through the through hole 5, and then passes through the through hole 16, the support ring 14, the clamping gap 7 and the push ring 9 in sequence. The wires in the cable pass through the connecting plate 13 from the limiting sleeve 21 and enter the lamp holder 12 to connect with the circuit board 37. The wires on the circuit board 37 pass through the round hole 32 from the lamp holder 12 and connect with the lamp body 3, thereby supplying power to the lamp body 3. Rotating the two locking parts 10 causes the locking parts 10 to drive the push ring 9 to slide towards the support ring 14. The push ring 9 drives the support ring 14 to move through the two grippers 6. When the support ring 14 moves and abuts against the bottom wall of the connecting base 11 located in the inner cavity 4, the locking parts 10 are rotated again. At this time, the push ring 9 drives the two grippers 6 to move towards the clamping gap 7 through the cooperation of the second guide wall 33 and the first guide wall 8 of the grippers 6, thereby causing the two grippers 6 to clamp the cable in the clamping gap 7. When the cable is pulled by an external force, the two clamps 6 hold and fix the cable, making it difficult for the wires inside the cable to disconnect from the terminals, thus making the explosion-proof taillight less prone to failure.

[0043] Example 2: Reference Figure 9 and 10The difference between this embodiment and Embodiment 1 is that the elastic pad 15 has a sliding groove 38 that communicates with the limiting groove 20, and one end of the sliding groove 38 away from the limiting groove 20 is connected to the through hole 16. Two push rods 24 are slidably installed in the sliding groove 38 of the elastic pad 15. The two push rods 24 are slidably installed on both sides of the elastic pad 15 located in the through hole 16 along the length direction perpendicular to the limiting post 19, and the two ends of each push rod 24 are located in the through hole 16 and the limiting groove 20, respectively. Clamping plate assemblies 25 are fixedly installed on the ends of the two push rods 24 that are close to each other, and both clamping plate assemblies 25 are located in the through hole 16 of the elastic pad 15.

[0044] A first inclined wall 26 is formed at the end of the limiting post 19 near the push rod 24. The first inclined wall 26 is inclined at 45° in the horizontal direction. A second inclined wall 27 is formed at the end of the push rod 24 near the limiting post 19. The second inclined wall 27 is inclined at 45° in the horizontal direction and is adapted to abut and adhere to the first inclined wall 26. When the support ring 14 moves the limiting post 19, the limiting post 19 moves the first inclined wall 26. The first inclined wall 26 of the limiting post 19 moves the push rod 24 toward the through hole 16 through the second inclined wall 27. The two push rods 24 move the two clamping plate assemblies 25 toward each other, thereby clamping and fixing the cable, making the cable installed more stably in the mounting base 1.

[0045] Reference Figure 10 and 11 The clamping plate assembly 25 includes a base 251, a sliding plate 252, and an elastic buffer 253. The base 251 is fixedly installed at the end of the push rod 24 away from the limiting post 19. A receiving cavity 39 is formed inside the base 251. A sliding strip hole 40 communicating with the receiving cavity 39 is formed on the side wall of the base 251 away from the push rod 24 along the cable length direction. The sliding plate 252 is slidably installed on the side wall of the base 251 away from the push rod 24 along the cable length direction. A T-shaped limiting push block 28 is fixedly installed on the side wall of the sliding plate 252 near the base 251, and the limiting push block 28 is slidably installed in the sliding strip hole 40 and the receiving cavity 39 along the sliding direction of the sliding plate 252. The limiting push block 28 limits the sliding of the sliding plate 252, making the sliding of the sliding plate 252 on the base 251 more stable.

[0046] Two elastic buffers 253 are installed, both within the receiving cavity 39 of the base 251. One end of each elastic buffer 253 abuts against the side wall of the base 251 in the receiving cavity 39 away from the limiting post 19, and the other end abuts against the limiting push block 28. In this application, the elastic buffer 253 can be a spring. The push rod 24 drives the sliding plate 252 to clamp the cable via the base 251. When the cable is pulled by an external force, the cable drives the two sliding plates 252 to slide on the two bases 251. The movement of the sliding plates 252 causes the limiting push block 28 to slide, and the limiting push block 28 moves and squeezes the elastic buffer 253. The elastic buffer 253 deforms and buffers the tension, thus making it less likely for the cable sheath held by the gripper 6 to tear.

[0047] An elastic pad 15 has a mounting groove 29 that communicates with a sliding groove 38. An elastic reset member 30 is installed in the mounting groove 29 within the elastic pad 15. A reset ring 31 is fixedly installed on the outer wall of the push rod 24, and the reset ring 31 is located in the mounting groove 29. One end of the elastic reset member 30 abuts against the side wall of the elastic pad 15 near the clamping plate assembly 25 in the mounting groove 29, and the other end abuts against the reset ring 31. In this application, the elastic reset member 30 can be a spring. When the cable does not pass through the through hole 16 of the elastic pad 15, the elastic member in the mounting groove 29 acts on the push rod 24 through the reset ring 31, causing the push rod 24 to move the clamping plate assembly 25. The clamping plate assembly 25 abuts against the side wall of the elastic pad 15 in the through hole 16, thereby moving the two clamping plate assemblies 25 away from each other, facilitating the cable to pass through the through hole 16 of the elastic pad 15.

[0048] The implementation principle of Embodiment 2 of this application is as follows: The support ring 14 drives the push rod 24 to move through the limiting post 19. The push rod 24 drives the base 251 to move. The base 251 drives the sliding plate 252 to move. The sliding plate 252 abuts against the cable to clamp and fix the cable. When the cable is pulled by an external force, the cable drives the two sliding plates 252 to slide on the base 251. The movement of the sliding plate 252 drives the limiting push block 28 to slide. The limiting push block 28 moves and squeezes the elastic buffer 253. The elastic buffer 253 deforms and buffers the tension. The clamping plate assembly 25 can clamp the cable on the one hand, making the cable more stable in the mounting base 1. On the other hand, it can buffer the tension on the cable and, together with the elastic pad 15, achieve secondary buffering of the tension, so that the cable jacket held by the clamping claw 6 is not easily torn.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An explosion-proof taillight with cable clamping and fixing function, comprising a mounting base (1), a lamp cover (2), and a lamp body (3), characterized in that: The mounting base (1) has an inner cavity (4) formed inside. Both ends of the mounting base (1) in the inner cavity (4) are provided with through holes (5) for cables to pass through. The mounting base (1) in the inner cavity (4) is provided with two clamps (6). A clamping gap (7) for cables to pass through is formed between the two clamps (6). An inclined first guide wall (8) is formed at the ends of the two clamps (6) that are far apart from each other. A push ring (9) is slidably provided in the mounting base (1) in the inner cavity (4). The inner sidewall of the push ring (9) abuts against the first guide wall (8) of the two clamps (6). The push ring (9) is provided with a locking member (10) for fixing itself in the mounting base (1).

2. The explosion-proof taillight with cable clamping and fixing function according to claim 1, characterized in that: A support ring (14) is slidably disposed in the inner cavity (4) of the mounting base (1). Two grippers (6) are disposed on the same side wall of the support ring (14). An elastic pad (15) is disposed in the inner cavity (4) of the mounting base (1) on the side of the support ring (14) away from the push ring (9). A through hole (16) is opened in the elastic pad (15). One side of the elastic pad (15) abuts against the mounting base (1) and the other side abuts against the support ring (14).

3. The explosion-proof taillight with cable clamping and fixing function according to claim 1, characterized in that: The mounting base (1) is provided with a slide (17) on the side wall of the inner cavity (4), and the push ring (9) is provided with a slide groove (18). The push ring (9) is slidably disposed on the slide (17) along its own axis through the slide groove (18).

4. The explosion-proof taillight with cable clamping and fixing function according to claim 2, characterized in that: The support ring (14) is provided with a limiting post (19) on the side wall near the elastic pad (15). The elastic pad (15) is provided with a limiting groove (20), and the limiting post (19) is slidably disposed in the limiting groove (20) along the sliding direction of the support ring (14).

5. The explosion-proof taillight with cable clamping and fixing function according to claim 1, characterized in that: The mounting base (1) is provided with a limiting sleeve (21) in the through hole (5) near the end of the lamp body (3) for the inner wire of the cable to pass through. The limiting sleeve (21) is provided with a fixing member (22) for fixing the wire.

6. The explosion-proof taillight with cable clamping and fixing function according to claim 1, characterized in that: On the sidewalls of the two grippers (6) that are close to each other, there are multiple ratchet plates (23) at intervals to increase the friction between the grippers (6) and the cable.

7. The explosion-proof taillight with cable clamping and fixing function according to claim 4, characterized in that: Two push rods (24) are slidably disposed inside the elastic pad (15) along the vertical cable length direction. The limiting post (19) abuts against the push rods (24) and drives the push rods (24) to slide. The two push rods (24) are respectively located on both sides of the through hole (16). The push rods (24) extend into the through hole (16), and the end of the push rod (24) located in the through hole (16) is provided with a clamping plate assembly (25) for clamping the cable and buffering the cable pull.

8. The explosion-proof taillight with cable clamping and fixing function according to claim 7, characterized in that: The end of the limiting post (19) near the push rod (24) has a first inclined wall (26), and the end of the push rod (24) near the limiting post (19) has a second inclined wall (27). The first inclined wall (26) of the limiting post (19) is adapted to abut against the second inclined wall (27) of the push rod (24), and the limiting post (19) drives the push rod (24) to slide towards the through hole (16).

9. An explosion-proof taillight with cable clamping and fixing function according to claim 7, characterized in that: The clamping plate assembly (25) includes a base (251), a sliding plate (252), and an elastic buffer (253). The base (251) is fixedly mounted on the end of the push rod (24). The sliding plate (252) is slidably mounted on the side wall of the base (251) away from the push rod (24) along the length of the cable. The elastic buffer (253) is disposed inside the base (251). A limiting push block (28) is provided on the side wall of the sliding plate (252) near the base (251). One end of the elastic buffer (253) abuts against the inner side wall of the base (251), and the other end of the elastic buffer (253) abuts against the limiting push block (28).

10. An explosion-proof taillight with cable clamping and fixing function according to claim 7, characterized in that: An installation groove (29) is provided in the elastic pad (15). An elastic reset member (30) is provided in the installation groove (29) of the elastic pad (15). A reset ring (31) is provided on the push rod (24). The reset ring (31) abuts against the end of the elastic reset member (30) away from the clamping plate assembly (25), and the end of the elastic reset member (30) close to the clamping plate assembly (25) abuts against the bottom wall of the installation groove (29).

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