Anti-loose wiring strip for lighting circuit of coal preparation plant

Abstract

The utility model discloses a kind of anti-loosening wiring harness for coal preparation plant lighting circuit, it is related to electrical connector technical field, the wiring harness includes lower shell, baffle and the upper shell slidable in lower shell sliding slot, the buffer mechanism of spring one being equipped between the slider of upper shell and baffle, for absorbing cable tension, lower shell is also equipped with clamping mechanism, by clamping block and the ball, spring two cooperation in another wiring harness clamping slot, realize quick splicing.The utility model solves the problem that wiring is easy to loosen and break due to pulling in prior art, and multiple groups are inconvenient to install and disassemble, it effectively disperses impact force by buffer mechanism, significantly improves the connection reliability;Greatly improve installation and maintenance efficiency by modular clamping mechanism, structure is ingenious, very suitable for industrial environment.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to an anti-loosening terminal block for lighting circuits in coal preparation plants. Background Technology

[0002] In industrial production environments such as coal preparation plants, the safety and reliability of electrical circuits are of paramount importance. Among these, terminal blocks are widely used as the basic components for achieving electrical connections.

[0003] In actual use, the operation of large equipment and the movement of personnel in coal preparation plants often cause the laid lighting cables to be subjected to unexpected vibration or pulling. Most existing terminal blocks adopt a rigid structure, with the cable directly fixed to the terminal block. When external tension is generated, the force will be directly transmitted to the vulnerable connection point without buffering. This structural design makes the screws at the connection point easy to loosen, and may even directly break the cable core, which not only affects normal lighting, but also causes serious safety hazards.

[0004] In addition, the lighting system in the factory area usually requires a large number of terminal blocks to be installed in parallel to form a centralized circuit distribution. The current common installation method is to fix each terminal block to the mounting plate or slide rail one by one with bolts and other fasteners. This method is cumbersome to disassemble and assemble during the initial installation or later circuit modification and maintenance, which consumes a lot of time and reduces the efficiency of installation and maintenance.

[0005] Therefore, this utility model proposes an anti-loosening terminal block for lighting circuits in coal preparation plants to address the shortcomings of existing technologies. Utility Model Content

[0006] In view of the problems existing in the anti-loosening terminal block for lighting circuits in coal preparation plants, such as the lack of a buffer structure leading to easy loosening and breakage of cables when pulled, and the inconvenience of parallel installation and disassembly of multiple devices, this utility model aims to provide an anti-loosening terminal block for lighting circuits in coal preparation plants with an improved structure that can effectively solve the above problems.

[0007] This utility model provides an anti-loosening terminal block for lighting circuits in a coal preparation plant, comprising: a lower outer shell, a baffle fixed to the lower outer shell, an upper outer shell, a terminal cylinder disposed on the upper outer shell, a slider disposed at the bottom of the upper outer shell, and a sliding groove formed at the top of the lower outer shell; and a buffer mechanism including a spring.

[0008] The upper outer shell is slidably engaged with the groove at the top of the lower outer shell via a slider at its bottom.

[0009] Furthermore, the spring is disposed on the lower outer shell and located between the baffle and the slider. Through this cooperative structure, when the upper outer shell is subjected to force and slides, the spring can be elastically compressed or stretched, thereby achieving buffering.

[0010] Preferably, the top of the upper housing is provided with a screw, and the bottom of the screw is threadedly connected to a buffer cylinder. The buffer cylinder is disposed inside the junction box and is used to clamp and fix the cable under the drive of the screw.

[0011] Preferably, the anti-loosening terminal block for lighting circuits in a coal preparation plant further includes a slide rail, and the lower housing is slidably installed in the slide rail to achieve neat arrangement of multiple terminal blocks.

[0012] Preferably, the lower housing is further provided with a locking mechanism for detachably connecting multiple terminal blocks. In one specific embodiment, the locking mechanism includes a locking block fixed to one side of the lower housing and a locking groove on the opposite side of the lower housing. A slider and a second spring are disposed inside the locking groove, and the second spring applies an elastic force to the slider to hold it in the locked position of the locking block. Furthermore, a ball groove is formed on the inner wall of the locking groove, allowing the slider to slide within the ball groove, providing clearance for the slider when the locking block is inserted or removed. A buffer plate is also provided between the slider and the second spring for auxiliary cushioning.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model solves the problem in the prior art that the wiring device lacks buffering when the cable is accidentally pulled, which can easily lead to loose connection points or cable breakage. It achieves the technical effect of effectively absorbing and dispersing impact force and significantly improving the reliability of line connection by setting up a buffer mechanism composed of an upper shell, a lower shell, a spring, and a slider groove.

[0015] 2. This utility model solves the problem that existing technologies typically use bolts for fixing multiple wiring devices in parallel installation, which is complex and inconvenient to disassemble and assemble. By setting up a locking mechanism composed of a locking block, a locking groove, and a built-in sliding ball and spring, it achieves the technical effect of realizing modular and rapid splicing and separation of multiple terminal blocks, greatly improving installation and maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a perspective view of an anti-loosening terminal block for lighting circuits in a coal preparation plant, as proposed in this utility model.

[0017] Figure 2 This is an exploded view of the buffer mechanism for an anti-loosening terminal block used in a coal preparation plant lighting circuit, as proposed in this utility model.

[0018] Figure 3 This is a structural exploded view of the locking mechanism for an anti-loosening terminal block used in a coal preparation plant lighting circuit, as proposed in this utility model.

[0019] Figure 4 for Figure 3 Enlarged view of point A in the image.

[0020] Legend:

[0021] 1. Slide rail; 2. Buffer mechanism; 201. Baffle; 202. Spring 1; 203. Slider; 204. Slide groove; 205. Screw; 206. Buffer cylinder; 3. Engaging mechanism; 301. Locking block; 302. Locking groove; 303. Ball groove; 304. Spring 2; 305. Buffer plate; 306. Sliding ball; 4. Lower outer shell; 5. Upper outer shell; 6. Junction cylinder. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] Example:

[0024] Please refer to Figures 1 to 4 This utility model provides an anti-loosening terminal block for lighting circuits in coal preparation plants, which aims to solve the problems in the prior art where the wiring device is prone to loosening and breaking due to external force pulling the cable, and the inconvenience of installing and disassembling multiple devices in parallel.

[0025] like Figure 1 and Figure 2 As shown, an anti-loosening terminal block for lighting circuits in a coal preparation plant includes a slide rail 1 and a lower housing 4 slidably installed in the slide rail 1. An upper housing 5 is slidably provided on the upper part of the lower housing 4. The lower housing 4 serves as the mounting base for the entire device, while the upper housing 5 is used to support the wiring assembly and generate buffer displacement when subjected to force.

[0026] To solve the above-mentioned technical problems, the technical solution of this embodiment is that an anti-loosening terminal block for lighting circuits in a coal preparation plant further includes a buffer mechanism 2, and the buffer mechanism 2 forms a specific structural fit and connection relationship with the aforementioned lower outer shell 4 and upper outer shell 5.

[0027] Please refer to the following carefully. Figure 1 and Figure 2The top surface of the lower outer shell 4 is integrally formed with a sliding groove 204. A baffle 201 is also fixed on the lower outer shell 4. The bottom of the upper outer shell 5 is correspondingly provided with a slider 203 that slides in cooperation with the sliding groove 204. The sliding connection structure between the slider 203 and the sliding groove 204 provides guidance and limitation for the movement of the upper outer shell 5. The buffer mechanism 2 also includes a spring 202. The spring 202 is set on the lower outer shell 4 and is located between the baffle 201 and the slider 203. When the upper outer shell 5 is pulled by an external force, the slider 203 will squeeze the spring 202. The elastic deformation of the spring 202 absorbs the impact force, thereby achieving a buffering effect. In order to achieve reliable fixing of the cable, a junction box 6 is also provided on the upper outer shell 5. A screw 205 is rotatably connected to the top of the upper outer shell 5. A buffer cylinder 206 is threadedly connected to the bottom of the screw 205. The buffer cylinder 206 is located inside the junction box 6. By turning the screw 205, the buffer cylinder 206 can be driven to move downward to clamp the cable placed in the junction box 6.

[0028] Based on the above embodiments, the present invention may further include the following preferred technical solutions:

[0029] As a preferred implementation method, to achieve modular and rapid assembly and disassembly of multiple terminal blocks, please refer to... Figure 1 , Figure 3 and Figure 4 The lower outer shell 4 is also provided with a locking mechanism 3. The locking mechanism 3 includes a locking block 301 fixed to one side of the lower outer shell 4 and a locking groove 302 opened on the opposite side of another set of lower outer shells 4. The shape of the locking groove 302 matches the locking block 301. The inside of the locking groove 302 is provided with a slider 306 and a second spring 304. The second spring 304 is used to apply elastic force to the slider 306 to lock the slider 306 in the locked position of the locking block 301. In order to provide space for the movement of the slider 306, a ball groove 303 is opened on the inner wall of the locking groove 302. The slider 306 can slide in the ball groove 303 to provide clearance space for the slider 306 when the locking block 301 is inserted or pulled out. A buffer piece 305 is also provided between the slider 306 and the second spring 304.

[0030] As another preferred embodiment, please refer to Figure 1 To facilitate the neat installation and fixation of multiple terminal blocks, the terminal block also includes a slide rail 1, and the lower housing 4 is slidably installed in the slide rail 1.

[0031] Working principle: The buffer mechanism 2 can distribute the force on the cable. The terminal blocks are installed sequentially into the slide rail 1. The lighting cable to be wired is inserted into the terminal cylinder 6. Tightening the screw 205 threaded to the top of the upper housing 5 causes the buffer cylinder 206, threaded to the bottom of the screw 205, to press downwards until it clamps the cable. Without a buffer structure, the cable is easily loosened or even disconnected when accidentally pulled. When the cable is pulled, the upper housing 5, fixedly connected to the top of the terminal cylinder 6, will pull the upper housing... Spring 202 is fixedly connected to one side of the front and rear sides of the upper outer shell 5. Spring 202 is compressed by elastic force, and the elastic force is dispersed by baffle 201 fixedly connected to the side away from spring 202. The slider 203 fixedly connected to the bottom of spring 202 will slide in the groove 204 opened on the top of the lower outer shell 4 and be limited to prevent the upper outer shell 5 from deviating. Through the buffering effect of the upper outer shell 5, the force of the cable being pulled is effectively buffered, preventing the cable from breaking and solving the problem of cable breaking due to pulling in the prior art.

[0032] Furthermore, the locking mechanism 3 achieves portable assembly and disassembly of the device through a modular snap-fit ​​structure. When multiple sets of terminal blocks need to be assembled, the locking block 301, which is fixedly connected to the right side of the lower housing 4, is aligned with the locking slot 302 opened on the left side of another set of lower housing 4 and pushed in. During the pushing process, the locking block 301 will squeeze the sliding ball 306 inside the locking slot 302. The sliding ball 306 first offsets part of the squeezing force through the buffer plate 305 fixedly connected to it, and then the elasticity of the spring 304 fixedly connected to the other side of the buffer plate 305 acts as a buffer. When in use, slide the ball groove 303 along the inner wall of the slot 302 inward until the block 301 is fully engaged in the slot 302. The spring 304 then resets and pushes the ball 306 to lock the block 301, completing the assembly and fixing. Similarly, when disassembly is required, simply pull the two sets of lower outer shells 4 in opposite directions. The block 301 will then squeeze the ball 306 again and compress the spring 304, causing the ball 306 to return to the ball groove 303, thus easily separating the two sets of terminal blocks. This solves the problem of inconvenient disassembly of the device in the prior art.

Claims

1. A type of anti-loosening terminal block for lighting circuits in a coal preparation plant, comprising: The lower outer shell (4) has a sliding groove (204) on its top and a baffle (201) fixed on its top. The upper outer shell (5) is provided with a wiring tube (6), and the bottom of the upper outer shell (5) is provided with a slider (203) that slides in cooperation with the sliding groove (204), so that the upper outer shell (5) can be slidably disposed on the lower outer shell (4); Its features are, The terminal block also includes a buffer mechanism (2), which includes a spring (202) disposed on the lower housing (4) and located between the baffle (201) and the slider (203).

2. The anti-loosening wiring strip for a coal preparation plant lighting circuit according to claim 1, characterized in that, The top of the upper housing (5) is provided with a screw (205), and the bottom of the screw (205) is threaded with a buffer cylinder (206). The buffer cylinder (206) is located inside the junction box (6) and is used to clamp the cable under the drive of the screw (205).

3. The anti-loose wiring strip for lighting circuit in coal preparation plant according to claim 1, characterized in that, The terminal block also includes a slide rail (1), and the lower housing (4) is slidably mounted in the slide rail (1).

4. The anti-loose wiring strip for coal preparation plant lighting circuit according to claim 1, characterized in that, The lower housing (4) is also provided with a locking mechanism (3) for detachably splicing multiple terminal blocks.

5. The anti-loose wiring strip for coal preparation plant lighting circuit according to claim 4, characterized in that, The locking mechanism (3) includes: a locking block (301) fixed to one side of the lower housing (4); and a locking groove (302) opened on the opposite side of the lower housing (4), the shape of the locking groove (302) matching the locking block (301).

6. The anti-loose wiring strip for coal preparation plant lighting circuit according to claim 5, characterized in that, The locking mechanism (3) further includes a slider (306) and a second spring (304). The slider (306) and the second spring (304) are disposed inside the slot (302). The second spring (304) is used to apply an elastic force to the slider (306) to lock the slider (306) in the locking position of the locking block (301).

7. The anti-loose wiring strip for coal preparation plant lighting circuit according to claim 6, characterized in that, A ball groove (303) is provided on the inner wall of the slot (302), and the slider (306) can slide in the ball groove (303) to provide clearance space for the slider (306) when the block (301) is inserted or pulled out.

8. The anti-loose wiring strip for coal preparation plant lighting circuit according to claim 6, characterized in that, The engaging mechanism (3) further includes a buffer plate (305), which is disposed between the slider (306) and the second spring (304).

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