A sliding rail type cover terminal
By designing a sliding rail type protective cover for the terminal block, and using an insulating cover to cover the locking screw, the problem of exposed locking screws is solved, improving aesthetics and safety, and simplifying the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN CONNECTION ELECTRONIC CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-19
AI Technical Summary
The existing terminal block screws are exposed, which affects the appearance and poses a safety hazard.
The design incorporates a sliding rail-type protective cover for the terminal block. The insulating cover conceals the locking screw, and can move up and down to expose or cover the screw. Combined with a limit plate and sliding groove structure, this ensures stability and ease of operation.
It improves the aesthetics and safety of the terminal blocks, prevents maintenance personnel from touching the locking nuts, and is simple and convenient to operate.
Smart Images

Figure CN224384608U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of terminal blocks, and in particular to a sliding rail type protective cover terminal block. Background Technology
[0002] The locking screws on existing terminal blocks are generally exposed, which facilitates wiring. However, the exposed state of these terminal blocks after wiring is unsightly. In addition, when the power is on, maintenance personnel may touch the exposed locking nuts during maintenance, posing a certain safety hazard. Therefore, designing a terminal block that can cover the locking screws has become an urgent technical problem to be solved. Utility Model Content
[0003] In order to overcome the existing technical defects, the purpose of this utility model is to provide a sliding rail type cover terminal block to solve the above-mentioned technical problems.
[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:
[0005] According to one aspect of this utility model, a sliding rail type protective cover terminal block is designed, comprising: a terminal housing, a conductive bar, and an insulating cover. The conductive bar is disposed inside the terminal housing, and locking screws are respectively provided at the upper and lower ends of the conductive bar. The threaded end of the locking screw passes through the through hole on the conductive bar and is threadedly engaged with the threaded hole on the terminal housing. The insulating cover is vertically slidably fitted on the front side of the terminal housing to cover all the locking screws. When the insulating cover moves upward, the locking screw at the lower end of the conductive bar is exposed; when the insulating cover moves downward, the locking screw at the upper end of the conductive bar is exposed. The insulating cover can be maintained in the adjusted state of moving upward or downward.
[0006] By adopting the above technical solution, an insulating cover is installed on the front side of the terminal housing. The insulating cover can cover all the locking nuts, preventing them from being exposed and making the overall appearance more aesthetically pleasing. In addition, it can prevent maintenance personnel from touching the exposed locking nuts during maintenance, thus improving safety. When wiring is required, the insulating cover can be moved up or down to expose the locking bolts for wiring operations. After the operation is completed, the insulating cover can be moved back to cover all the locking nuts. The operation is simple and the effect is good.
[0007] To better address the aforementioned technical deficiencies, this utility model also offers a superior technical solution:
[0008] In some embodiments, two vertical strips are provided on the rear side of the insulating cover, and a sliding groove is provided on the outer side of the vertical strips. Two sliding parts are provided on the inner side wall of the terminal housing. The two sliding parts slide vertically with the two sliding grooves, and the side of the sliding part abuts against the side wall of the sliding groove or / and the outer side wall of the rear end of the vertical strip abuts against the inner side wall of the terminal housing, so that the insulating cover is kept in the adjusted state after moving up or down.
[0009] In some embodiments, a first limiting plate is provided on the rear side of the upper end of the insulating cover, and a second limiting plate is provided on the rear side of the lower end. When the insulating cover moves downward and the first limiting plate contacts the limiting protrusion on the terminal housing, the locking screw at the upper end of the conductive busbar is exposed. When the insulating cover moves upward and the second limiting plate contacts the limiting protrusion, the locking screw at the lower end of the conductive busbar is exposed. The first and second limiting plates can limit the insulating cover and prevent it from separating from the terminal housing during movement.
[0010] In some embodiments, a plurality of triangular reinforcing blocks are vertically arranged on the inner side of the vertical strip and connected to the cover plate. This can improve the strength of the vertical plate and make it less prone to deformation.
[0011] In some embodiments, a nut is fixed inside the terminal housing, and the locking screw is threadedly engaged with the nut.
[0012] In some embodiments, the insulating cover is provided with arrows that have recessed or raised structures. Attached Figure Description
[0013] Figure 1 A schematic diagram of the structure of a slide rail type protective cover terminal block according to one embodiment of the present utility model;
[0014] Figure 2 A top view of the sliding rail type cover terminal block structure;
[0015] Figure 3 for Figure 2 An enlarged view of position A in the middle;
[0016] Figure 4 This is a schematic diagram of the insulating cover.
[0017] Figure 5 A cross-sectional view of the sliding rail type protective cover terminal block after the insulating cover has been moved upwards;
[0018] Figure 6 A cross-sectional view of the sliding rail type protective cover terminal block after the insulating cover has been moved down.
[0019] Figure label:
[0020] 1. Terminal housing; 11. Sliding part; 12. Limiting protrusion; 2. Conductive bar; 3. Insulating cover; 31. Vertical strip; 311. Slide groove; 32. Triangular reinforcing block; 33. First limiting plate; 34. Second limiting plate; 35. Arrow; 4. Locking screw. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, and fixing should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0024] refer to Figures 1 to 6 As shown, the present invention provides a sliding rail type protective cover terminal block, including: a terminal housing 1, a conductive bar 2, and an insulating cover 3. The conductive bar 2 is a copper bar or an aluminum bar. There is one conductive bar 2 or two, three or more horizontally distributed conductive bars 2. In this embodiment, there is one conductive bar 2, which is located inside the terminal housing 1. The upper and lower ends of the conductive bar 2 are respectively provided with locking screws 4. The threaded end of the locking screw 4 passes through the through hole on the conductive bar 2 and is threadedly engaged with the nut fixed on the terminal housing 1. The locking screw 4 is fitted with a flat washer and an open spring washer.
[0025] The insulating cover 3 slides vertically onto the front side of the terminal housing 1 to cover all the wire-locking screws 4, such as... Figure 5 As shown, when the insulating cover 3 is moved upward, the locking screw 4 at the lower end of the conductive bar 2 is exposed, as follows. Figure 6As shown, when the insulating cover 3 is moved down, the locking screw 4 at the upper end of the conductive bar 2 can be exposed. The insulating cover 3 can remain in the adjusted state after being moved up or down. Furthermore, two vertical strips 31 are provided on the rear side of the insulating cover 3. Vertical through grooves 311 are distributed on the outer side of the two vertical strips 31. A sliding part 11 is distributed on the left and right side walls inside the terminal housing 1. The two sliding parts 11 are symmetrical. The sliding part 11 is a vertical strip-shaped protrusion. The two sliding parts 11 slide vertically with the two grooves 311. The side of the sliding part 11 abuts against the side wall of the groove 311 and / or the outer side wall 311 of the rear end of the vertical strip 31 abuts against the inner side wall of the terminal housing 1, so that the insulating cover 3 is kept in the adjusted state of moving up or down. In this embodiment, it is preferable that the outer side wall 311 of the rear end of the vertical strip 31 abuts against the inner side wall of the terminal housing 1. Two, three, four or more triangular reinforcing blocks 32 are vertically provided on the inner side of each vertical strip 31. The triangular reinforcing blocks 32, the vertical strips 31 and the insulating cover 3 are an integral structure. The material is any one of PE, PVC, PS, PTFE, PP, PA, etc.
[0026] The upper rear side of the insulating cover 3 is provided with a first limiting plate 33, and the lower rear side is provided with a second limiting plate 34. When the insulating cover 3 moves down and the first limiting plate 33 contacts the top of the limiting protrusion 12 on the terminal housing 1, the locking screw 4 at the upper end of the conductive bus 2 is exposed. When the insulating cover 3 moves up and the second limiting plate 34 contacts the bottom of the limiting protrusion 12, the locking screw 4 at the lower end of the conductive bus 2 is exposed.
[0027] The insulating cover 3 is provided with an arrow 35 with a recessed or raised structure, which can indicate the direction of movement of the insulating cover 3.
[0028] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. A sliding rail type protective cover terminal block, characterized in that, include: The device comprises a terminal housing, a conductive busbar, and an insulating cover. The conductive busbar is disposed inside the terminal housing. A locking screw is provided at both the upper and lower ends of the conductive busbar. The threaded end of the locking screw passes through a through hole on the conductive busbar and engages with a threaded hole on the terminal housing. The insulating cover is vertically slidably fitted on the front side of the terminal housing to cover all the locking screws. When the insulating cover moves upward, the locking screw at the lower end of the conductive busbar is exposed; when the insulating cover moves downward, the locking screw at the upper end of the conductive busbar is exposed. The insulating cover can remain in the adjusted state after moving upward or downward.
2. The sliding rail type protective cover terminal block according to claim 1, characterized in that, Two vertical strips are provided on the rear side of the insulating cover. A sliding groove is provided on the outer side of the vertical strips. Two sliding parts are provided on the inner side wall of the terminal housing. The two sliding parts slide vertically with the two sliding grooves, and the side of the sliding part abuts against the side wall of the sliding groove or / and the outer side wall of the rear end of the vertical strip abuts against the inner side wall of the terminal housing, so that the insulating cover is kept in the adjusted state after moving up or down.
3. A sliding rail type protective cover terminal block according to claim 1 or 2, characterized in that, The insulating cover has a first limiting plate on the rear side of the upper end and a second limiting plate on the rear side of the lower end. When the insulating cover moves down and the first limiting plate contacts the limiting protrusion on the terminal housing, the locking screw at the upper end of the conductive busbar is exposed. When the insulating cover moves up and the second limiting plate contacts the limiting protrusion, the locking screw at the lower end of the conductive busbar is exposed.
4. The sliding rail type protective cover terminal block according to claim 2, characterized in that, The inner side of the vertical strip is provided with several triangular reinforcing blocks that are connected to the cover plate.
5. A sliding rail type protective cover terminal block according to claim 1, characterized in that, A nut is fixed inside the terminal housing, and the locking screw is threadedly engaged with the nut.
6. A sliding rail type protective cover terminal block according to claim 1, characterized in that, The insulating cover is provided with arrows that have a recessed or raised structure.