A quick-plug terminal block with self-locking function

CN224637436UActive Publication Date: 2026-08-14SHENYANG COBURG RAIL TRANSIT CO LTD
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Patent Information

Application Number
CN202521474475.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-15
Publication Date
2026-08-14
Estimated Expiration
2035-07-15

AI Technical Summary

Technical Problem

[0003]目前的端子排大多采用较为简单的结构设计,在电线更换操作方面存在诸多不便,当需要对电线进行更换时,往往需要借助螺丝刀等复杂工具,通过繁琐的步骤来松开端子排内部卡接电线的弹簧片,不仅操作过程耗时较长,而且对操作人员的技术熟练度要求较高,耗费大量人力和时间成本,难以满足高效作业的需求

Benefits of technology

本端子排通过独特的机械结构设计,在使用结束后,仅需向右移动滑行块,就能依次带动升降滑杆、限位横板、撑驱定块及驱动辊轮移动,驱动辊轮在限位楔块斜面作用下带动升降滑杆下降,进而使转动插杆插入端子排顶端空腔,其梯形杆头可轻松将卡接电线的弹簧片拨到一端,极大地方便了工作人员取出电线进行更换,显著提高了电线更换的效率,相较于传统端子排,无需复杂工具和繁琐操作,大幅节省了人力和时间成本。

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Abstract

This utility model discloses a quick-plug terminal block with a self-locking function, comprising a terminal block, support members fixed on both sides of the top of the terminal block, a linkage member fixed on the inner wall of the support member, a lifting member sliding inside the linkage member, a linkage lifting block fixed at the bottom of the lifting member, a reset connecting rod fixed inside the bottom of the linkage lifting block, and a rotating insertion rod rotatably inserted inside the bottom of the linkage lifting block. Through the movement of the lifting slide rod, the limiting horizontal plate, the support drive block, and the drive roller, the drive roller, under the action of the inclined surface of the limiting wedge, drives the lifting slide rod to descend, thereby allowing the rotating insertion rod to insert into the cavity at the top of the terminal block. Its trapezoidal rod head can easily push the spring plate that holds the wire to one end, greatly facilitating the removal and replacement of the wire by the staff, significantly improving the efficiency of wire replacement. Compared with traditional terminal blocks, it requires no complicated tools and cumbersome operations, greatly saving manpower and time costs.
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Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, specifically a quick-plug terminal block with self-locking function. Background Technology

[0002] Terminal blocks, meaning insulating components that carry multiple or more sets of mutually insulated terminal assemblies and are used for fixing and supporting parts, are used to connect the wiring of equipment inside and outside the panel, enabling signal (current and voltage) transmission. Terminal blocks make wiring neat and easy to maintain. They are reliable for long-distance connections, and easy to install and maintain. In the field of electrical connections, terminal blocks are widely used in various electrical equipment and control systems as key components for wire connection and fixation. With the continuous updating and development of electrical equipment, the requirements for the ease of operation and functionality of terminal blocks are also increasing.

[0003] Most current terminal blocks adopt a relatively simple structural design, which makes wire replacement operations inconvenient. When it is necessary to replace the wire, it is often necessary to use complex tools such as screwdrivers and go through cumbersome steps to loosen the spring clips that hold the wires inside the terminal block. Not only is the operation time-consuming, but it also requires a high level of technical proficiency from the operators, which consumes a lot of manpower and time costs and is difficult to meet the needs of efficient operation. Utility Model Content

[0004] The purpose of this invention is to provide a quick-plug terminal block with a self-locking function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-plug terminal block with self-locking function, comprising a terminal block, with support members fixed on both sides of the top of the terminal block, a linkage member fixed on the inner wall of the support member, a lifting member sliding inside the linkage member, a linkage lifting block fixed at the bottom of the lifting member, a cavity formed inside the bottom of the linkage lifting block, a reset connecting rod fixed inside the cavity, a rotating insertion rod rotatably inside the bottom of the linkage lifting block, and a groove formed at the top of the rotating insertion rod, the other end of the reset connecting rod being fixed in the groove.

[0006] Preferably, the bottom end of the rotating plug is trapezoidal, which facilitates insertion into one end cavity of the terminal block.

[0007] Preferably, the reset link has a spring inside, which can be driven to reset by rotating the groove at the top of the plug.

[0008] Preferably, the support includes a stabilizing bracket, with stabilizing brackets fixed to both sides of the top of the terminal block, a stabilizing strut fixed to the top of the stabilizing bracket, and a stabilizing crossbar fixed to the inner side wall of the stabilizing strut.

[0009] Preferably, the linkage includes a limiting wedge, a plurality of limiting wedges are fixed at the bottom end of the stabilizing crossbar, a limiting slide rail is fixed on the inner wall of the stabilizing bracket, and a sliding block slides on the outer wall of the limiting slide rail.

[0010] Preferably, the lifting component includes a lifting slide rod, the lifting slide rod slides inside the sliding block, a limiting cross plate is fixed to the top of the lifting slide rod, a support block is fixed to the top of the limiting cross plate, and a drive roller rotates inside the support block.

[0011] Preferably, the limiting wedge has inclined surfaces on both sides, which, in conjunction with the drive roller, can drive the lifting slide bar to move up and down.

[0012] Preferably, one end of a spring is fixed to the top of the sliding block, and the other end of the spring is fixed to the bottom of the limiting horizontal plate. The spring's elasticity can drive the lifting slide rod to reset.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This terminal block features a unique mechanical structure design. After use, simply moving the sliding block to the right will sequentially move the lifting slide, the limiting plate, the support block, and the drive roller. The drive roller, under the action of the inclined surface of the limiting wedge, will cause the lifting slide to descend, allowing the rotating insertion rod to be inserted into the cavity at the top of the terminal block. Its trapezoidal rod head can easily push the spring plate that holds the wire to one end, greatly facilitating the removal and replacement of the wire by the staff and significantly improving the efficiency of wire replacement. Compared with traditional terminal blocks, it requires no complicated tools and cumbersome operations, greatly saving manpower and time costs.

[0014] After the wire replacement is completed, the moving slide block removes the limit wedge from the drive roller. At this time, the spring at the bottom of the limit plate and the spring inside the reset link take effect, driving the lifting slide and rotating plug to automatically reset. No manual reset operation is required, simplifying the usage process. At the same time, it ensures that the terminal block can quickly return to its initial state, preparing it for the next use and improving the convenience and smoothness of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A frontal cross-sectional schematic diagram of the connection structure; Figure 3 for Figure 1A side view diagram of the connection structure; Figure 4 for Figure 1 A top view of the connection structure; Figure 5 for Figure 2 Enlarged connection structure diagram at point A; Figure 6 for Figure 3 A magnified schematic diagram of the connection structure at point B.

[0016] In the diagram: 1. Terminal block, 2. Stabilizing bracket, 3. Stabilizing support rod, 4. Stabilizing crossbar, 5. Limiting wedge block, 6. Limiting slide rail, 7. Sliding block, 8. Lifting slide rod, 9. Limiting cross plate, 10. Support drive block, 11. Drive roller, 12. Linkage lifting block, 13. Reset connecting rod, 14. Rotating insertion rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-6 This utility model provides a technical solution: a quick-plug terminal block with self-locking function, including a terminal block 1. Support members are fixed to both sides of the top of the terminal block 1. A linkage member is fixed to the inner wall of the support member. A lifting member slides inside the linkage member. A linkage lifting block 12 is fixed to the bottom of the lifting member. The linkage lifting block 12 is fixed to the bottom of a lifting slide rod 8 and moves up and down with the lifting slide rod 8. A cavity is formed inside the bottom of the linkage lifting block 12. A reset connecting rod 13 is fixed inside the cavity inside the bottom of the linkage lifting block 12. The internal spring is key to resetting the rotating rod 14. The bottom of the linkage lifting block 12 has a rotating rod 14 inside, and the top of the rotating rod 14 has a groove. The other end of the reset link 13 is fixed in the groove. The bottom of the rotating rod 14 is trapezoidal, which makes it easy to insert into the cavity at one end of the terminal block, thus making it easy to pull the wire out of the terminal slot. The bottom of the rotating rod 14 is trapezoidal, which makes it easy to insert into the cavity at one end of the terminal block. The reset link 13 has a spring inside, which can drive the rod 14 to reset by rotating the groove at the top of the rod 14.

[0019] The support includes a stabilizing bracket 2. The stabilizing bracket 2 is fixed to both sides of the top of the terminal block 1. The stabilizing bracket 2 is fixed to both sides of the top of the terminal block 1 and can provide a support foundation for the entire device. The top of the stabilizing bracket 2 is fixed to a stabilizing strut 3. The top of the stabilizing strut 3 is connected to the stabilizing bracket 2, which further enhances the stability of the overall structure. The inner side wall of the stabilizing strut 3 is fixed to a stabilizing crossbar 4. The stabilizing crossbar 4 is fixed to the inner side wall of the stabilizing strut 3, which not only serves to connect the stabilizing strut, but also provides a fixed position for the subsequent installation of linkage components.

[0020] The linkage includes a limiting wedge 5. Multiple limiting wedges 5 are fixed at the bottom end of the stabilizing crossbar 4. The limiting wedges 5 are fixed at the bottom end of the stabilizing crossbar 4 and drive the drive roller 11 to move up and down through the inclined surfaces on both sides. The inner wall of the stabilizing bracket 2 is fixed with a limiting slide rail 6. The limiting slide rail 6 can support the sliding block 7 and limit its movement stroke. The outer wall of the limiting slide rail 6 has a sliding block 7 that can drive the lifting slide bar 8 to move left and right.

[0021] The lifting component includes a lifting slide bar 8. The lifting slide bar 8 slides inside the sliding block 7. The lifting slide bar 8 can transmit the power of the drive roller 11 to the linkage lifting block 12. The top of the lifting slide bar 8 is fixed with a limit plate 9. The limit plate 9 can drive the lifting slide bar 8 to move up and down through the spring at the bottom. The top of the limit plate 9 is fixed with a support block 10. The support block 10 can provide installation space for the parts installed at the top. The drive roller 11 rotates inside the support block 10. The drive roller 11 can drive the lifting slide bar 8 to move up and down through the inclined surfaces on both sides of the limit wedge 5. The limit wedge 5 has inclined surfaces on both sides. With the drive of the drive roller 11, it can drive the lifting slide bar 8 to move up and down. The top of the sliding block 7 is fixed with one end of a spring. The other end of the spring is fixed to the bottom of the limit plate 9. The elasticity of the spring can drive the lifting slide bar 8 to reset.

[0022] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0023] After terminal block 1 is used, slide block 7 moves to the right. Slide block 7 drives lifting slide bar 8 to move to the right on limit slide rail 6. Lifting slide bar 8 drives limit horizontal plate 9 to move to the right. When limit horizontal plate 9 moves to the right, support drive block 10 fixed at its top also moves. Support drive block 10 drives drive roller 11 to move to the right. When drive roller 11 moves to the right, it moves downward through the inclined surfaces on both sides of limit wedge block 5 at the bottom of stabilizing horizontal bar 4. Drive roller 11 drives lifting slide bar 8 to move downward through support drive block 10. Lifting slide bar 8 drives linkage lifting block 12 to move downward. Linkage lifting block 12 drives rotating insertion rod 14 to move downward and insert it into the top of terminal block 1. Inside the cavity, the trapezoidal rod head at its bottom is used to move the spring plate that holds the wire inside the terminal block 1 to one end, making it convenient for staff to remove the wire for replacement. After the replacement is completed, the sliding block 7 is moved, which drives the lifting slide rod 8 to move. The lifting slide rod 8 drives the drive roller 11 to move through the support block 10. The movement of the drive roller 11 cancels the limitation of the limit wedge block 5. After the limit wedge block 5 cancels the limitation of the drive roller 11, the spring at the bottom of the limit plate 9 drives the lifting slide rod 8 to reset through its own elasticity. The lifting slide rod 8 drives the rotating insert rod 14 to reset through the linkage lifting block 12. The reset link 13 drives the rotating insert rod 14 to reset through the internal spring.

[0024] 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 quick-plug terminal strip with self-locking function, comprising a terminal strip (1), characterized in that, Support members are fixed on both sides of the top of the terminal block (1). A linkage member is fixed on the inner wall of the support member. A lifting member slides inside the linkage member. A linkage lifting block (12) is fixed at the bottom of the lifting member. A cavity is formed inside the bottom of the linkage lifting block (12). A reset connecting rod (13) is fixed inside the cavity. A rotating insert rod (14) rotates inside the bottom of the linkage lifting block (12). A groove is formed at the top of the rotating insert rod (14). The other end of the reset connecting rod (13) is fixed in the groove.

2. The quick-plug terminal strip with self-locking function according to claim 1, characterized in that, The bottom end of the rotating plug (14) is trapezoidal, which makes it easy to insert into the cavity at one end of the terminal block.

3. The quick-plug terminal block with self-locking function according to claim 1, characterized in that, The reset link (13) has a spring inside, which can be driven to reset by rotating the groove at the top of the plug (14).

4. The quick-plug terminal block with self-locking function according to claim 1, characterized in that, The support includes a stabilizing bracket (2), the stabilizing bracket (2) is fixed on both sides of the top of the terminal block (1), the stabilizing support rod (3) is fixed on the top of the stabilizing bracket (2), and the stabilizing crossbar (4) is fixed on the inner side wall of the stabilizing support rod (3).

5. The quick-plug terminal block with self-locking function according to claim 4, characterized in that, The linkage includes a limiting wedge (5), a plurality of limiting wedges (5) are fixed at the bottom end of the stabilizing crossbar (4), a limiting slide rail (6) is fixed on the inner wall of the stabilizing bracket (2), and a sliding block (7) slides on the outer wall of the limiting slide rail (6).

6. The quick-plug terminal block with self-locking function according to claim 5, characterized in that, The lifting component includes a lifting slide rod (8), the lifting slide rod (8) slides inside the sliding block (7), the top end of the lifting slide rod (8) is fixed with a limiting horizontal plate (9), the top end of the limiting horizontal plate (9) is fixed with a support drive block (10), and the support drive block (10) has a drive roller (11) rotating inside.

7. The quick-plug terminal block with self-locking function according to claim 6, characterized in that, The limiting wedge (5) has inclined surfaces on both sides, which, in conjunction with the drive roller (11), can drive the lifting slide (8) to move up and down.

8. The quick-plug terminal block with self-locking function according to claim 6, characterized in that, The top of the sliding block (7) is fixed with one end of a spring, and the other end of the spring is fixed to the bottom of the limiting horizontal plate (9). The spring's elasticity can drive the lifting slide rod (8) to reset.