A pre-assembled left terminal assembly with insulation protection structure
By designing an insulating protection box and a pressing mechanism on the terminal block, the short circuit problem caused by exposed terminal blocks is solved, achieving improved safety and convenient connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN JINLEFENG HARDWARE PARTS CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-12
AI Technical Summary
Existing wiring terminals are exposed to the outside and are prone to contact with other devices, which can cause short circuits and affect safety.
A pre-assembled left terminal assembly with an insulating protection structure is designed, including an insulating protection box and a pressing mechanism. The insulating protection box prevents the terminal body from contacting external devices, and the pressing mechanism facilitates the connection of wires.
It effectively prevents short circuits, improves safety, and simplifies the wire connection process.
Smart Images

Figure CN224355457U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of terminal block technology, and in particular to a pre-installed left terminal block assembly with an insulating protection structure. Background Technology
[0002] Terminal blocks are generally used in electrical equipment, power transmission and other fields. Their function is to connect adjacent wires. Due to their advantages such as simple use, low manufacturing cost and high working efficiency, terminal blocks are widely used.
[0003] Most existing terminal blocks are directly exposed to the outside without a protective shell. This makes them prone to contact with other devices, causing short circuits and affecting their safety. Utility Model Content
[0004] This utility model provides a pre-installed left terminal assembly with an insulating protection structure, which solves the technical problem that the wiring terminal is prone to contact with other devices, causing short circuits and thus affecting its safety.
[0005] To achieve this technical objective, the present invention adopts the following solution: a pre-installed left terminal assembly with an insulating protection structure, comprising a terminal body, an insulating protection box, and a pressing mechanism;
[0006] The insulating protection box contains a detachable terminal body;
[0007] The terminal body has multiple wire-passing holes that are evenly spaced along its length;
[0008] The pressing mechanism is installed through the top of the terminal body and is connected to the wire hole to press the wire inside the wire hole.
[0009] Furthermore, the insulating protection box includes a box body and a top cover;
[0010] The box has clearance openings on two opposite sides, which are used to allow wires to pass through the box and be inserted into the wire hole;
[0011] The top cover is set on the top of the box body with an interference fit. The two opposite sides of the top cover are integrally formed with baffles, which cover the top of the clearance opening.
[0012] Furthermore, the top of the terminal body is provided with multiple clearance holes that are evenly distributed along its length, and each clearance hole is through a wire hole.
[0013] Two L-shaped inserts are fixed on the two opposite side walls of the terminal body. The two L-shaped inserts on the same side are mirrored. The end of the L-shaped insert away from the terminal body is inserted into the socket on the side wall of the box.
[0014] Furthermore, the pressing mechanism includes a support plate, a pressing rod, and a return spring;
[0015] The support plate is fixedly mounted on the top of the terminal body;
[0016] The top of the pressure rod is integrally formed with a limit ring. The rod body of the pressure rod passes through the support plate and the clearance hole in sequence. A partition is fixed on the rod body of the pressure rod. The partition is set outside the wire hole. The bottom end of the pressure rod extends into the wire hole.
[0017] The return spring is sleeved on the outside of the lower pressure rod, and its two ends abut against the support plate and the partition plate, respectively.
[0018] Furthermore, the support plate includes a supporting long plate and a connecting vertical plate;
[0019] The support plate covers all the clearance holes, and each pressure rod passes through the support plate. Both ends of the support plate are fixed with connecting vertical plates, which are fixedly connected to the top surface of the terminal body.
[0020] Furthermore, the support plate includes multiple supporting short plates and connecting vertical plates;
[0021] Each support short plate is covered with a clearance hole, each support short plate corresponds to a pressure rod, and both ends of the support short plate are fixed with connecting vertical plates, which are fixedly connected to the top surface of the terminal body.
[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0023] This invention features an insulating protective box outside the pre-installed left terminal assembly to prevent the terminal body from contacting external devices, thereby reducing the possibility of short circuits. It also includes a pressing mechanism that allows for quick and convenient wire connection. Attached Figure Description
[0024] Figure 1 A schematic diagram of a pre-installed left terminal assembly with an insulating protection structure provided for a specific embodiment of this utility model;
[0025] Figure 2 A front view of a pre-assembled left terminal assembly with an insulating protection structure provided in Embodiment 1 of this utility model:
[0026] Figure 3 A top view of a pre-assembled left terminal assembly with an insulating protection structure provided in Embodiment 1 of this utility model;
[0027] Figure 4 A front view of a pre-assembled left terminal assembly with an insulating protection structure provided in Embodiment 2 of this utility model.
[0028] Explanation of reference numerals in the attached figures:
[0029] 1. Terminal body; 11. Wire hole; 12. L-shaped plug; 2. Insulation protection box; 21. Box body; 211. Clearance opening; 212. Socket; 22. Top cover; 221. Baffle; 3. Pressing mechanism; 31. Support plate; 311. Support long plate; 312. Connecting vertical plate; 313. Support short plate; 32. Pressing rod; 321. Limiting ring; 322. Partition; 33. Return spring. Detailed Implementation
[0030] To fully understand the purpose, features and effects of this utility model, the following specific embodiments will be used to describe this utility model in detail, but this utility model is not limited thereto.
[0031] Example 1
[0032] like Figures 1 to 3 As shown, the present invention provides a pre-assembled left terminal assembly with an insulating protection structure, comprising a terminal body 1, an insulating protection box 2, and a pressing mechanism 3. The terminal body 1 is detachably disposed within the insulating protection box 2.
[0033] Please refer to Figure 1 and Figure 2 The terminal body 1 has multiple through holes 11 evenly distributed along its length direction, and the top of the terminal body 1 has multiple clearance holes (not shown in the figure) evenly distributed along its length direction, each clearance hole passing through a through hole 11.
[0034] Please refer to Figure 1 and Figure 2 The insulating protection box 2 includes a box body 21 and a top cover 22. The box body 21 has clearance openings 211 on two opposite sides, allowing wires to pass through the box body 21 and be inserted into the wiring hole 11. The top cover 22 is fitted onto the top of the box body 21 with an interference fit. Two baffles 221 are integrally formed on opposite sides of the top cover 22, covering the top of the clearance openings 211. In other words, after the top cover 22 is installed, the baffles 221 only cover the pressing mechanism 3, not the wiring hole 11, thus the baffles 221 do not affect the insertion of the wire into the wiring hole 11.
[0035] As a connection method between the terminal body 1 and the insulating protective box 2, two L-shaped plugs 12 are fixed on the two opposite side walls of the terminal body 1. The two L-shaped plugs 12 on the same side are mirror-distributed, and the end of the L-shaped plug 12 away from the terminal body 1 is inserted into the socket 212 opened on the side wall of the box 21. Preferably, the L-shaped plug 12 is made of a rigid material with a certain elasticity, such as sheet metal with a certain thickness. In use, first press the L-shaped plug 12 inward by hand so that the end of the L-shaped plug 12 away from the terminal body 1 abuts against the inner side wall of the box 21. Then press the terminal body 1 down to make the terminal body 1 slide down until the L-shaped plug 12 is inserted into the socket 212.
[0036] The pressing mechanism 3 is disposed through the top of the terminal body 1 and is connected to the wire hole 11 to press the wire inside the wire hole 11.
[0037] The pressing mechanism 3 includes a support plate 31, a pressing rod 32, and a return spring 33. The support plate 31 is fixedly mounted on the top of the terminal body 1. The top end of the pressing rod 32 is integrally formed with a limit ring 321. The rod body of the pressing rod 32 passes through the support plate 31 and the clearance hole in sequence. A partition plate 322 is fixedly mounted on the rod body of the pressing rod 32. The partition plate 322 is located outside the wire hole 11. The bottom end of the pressing rod 32 extends into the wire hole 11. The return spring 33 is sleeved on the outside of the pressing rod 32. The two ends of the return spring 33 abut against the support plate 31 and the partition plate 322, respectively.
[0038] In this embodiment, the support plate 31 includes a support elongated plate 311 and a connecting vertical plate 312. The support elongated plate 311 covers all the clearance holes, and each pressing rod 32 passes through the support elongated plate 311. The connecting vertical plate 312 is fixedly provided at both ends of the support elongated plate 311, and the connecting vertical plate 312 is fixedly connected to the top surface of the terminal body 1.
[0039] In use, first install the terminal body 1 into the housing 21, then pull the limiting ring 321 upwards. The limiting ring 321 drives the lowering rod 32 upwards, causing the bottom end of the lowering rod 32 to leave the wire hole 11. During this process, the return spring 33 is further compressed. Then, insert the wires to be connected into the wire hole 11 from both ends. Then release the limiting ring 321. Under the action of the return spring 33, the bottom of the lowering rod 32 presses the wire connection point tightly, thus achieving wire connection. In the pressed state, the return spring 33 remains compressed and needs to maintain a certain pressure to improve the reliability of wire connection. After connecting the wires, install the top cover 22 on the top of the housing 21.
[0040] Example 2
[0041] like Figure 4As shown, this embodiment of the pre-assembled left terminal assembly with an insulating protection structure is basically the same as that in Embodiment 1. The only difference is that in this embodiment, the support plate 31 includes multiple supporting short plates 313 and connecting vertical plates 312;
[0042] Each support short plate 313 is covered with a clearance hole, and each support short plate 313 corresponds to a pressure rod 32. Both ends of the support short plate 313 are fixedly provided with connecting vertical plates 312, and the connecting vertical plates 312 are fixedly connected to the top surface of the terminal body 1.
[0043] Finally, it should be noted that the above-listed embodiments are merely preferred embodiments of the present invention. Of course, those skilled in the art can make modifications and variations to the present invention. If such modifications and variations fall within the scope of the claims of the present invention and their equivalents, they should be considered as being within the protection scope of the present invention.
Claims
1. A pre-assembled left terminal assembly with an insulating protection structure, characterized in that, It includes a terminal body (1), an insulating protection box (2), and a pressing mechanism (3); The terminal body (1) is detachably disposed inside the insulating protection box (2); The terminal body (1) has multiple through holes (11) that are evenly spaced along its length. The pressing mechanism (3) is disposed through the top of the terminal body (1) and is connected to the wire hole (11) to press the wire inside the wire hole (11).
2. The pre-assembled left terminal assembly with an insulating protection structure according to claim 1, characterized in that, The insulating protective box (2) includes a box body (21) and a top cover (22); The box (21) has clearance openings (211) on two opposite sides. The clearance openings (211) are used to allow the wire to pass through the box (21) and be inserted into the wire hole (11). The top cover (22) is disposed on the top of the box body (21) in an interference fit manner. The two opposite sides of the top cover (22) are integrally formed with baffles (221), which cover the top of the clearance opening (211).
3. A pre-assembled left terminal assembly with an insulating protection structure according to claim 2, characterized in that, The terminal body (1) has a plurality of clearance holes that are equally spaced along its length direction on its top, and each clearance hole passes through a wire hole (11). Two L-shaped plugs (12) are fixed on the two opposite side walls of the terminal body (1). The two L-shaped plugs (12) on the same side are mirrored. The end of the L-shaped plug (12) away from the terminal body (1) is inserted into the plug hole (212) opened on the side wall of the box body (21).
4. A pre-assembled left terminal assembly with an insulating protection structure according to claim 3, characterized in that, The pressing mechanism (3) includes a support plate (31), a pressing rod (32), and a return spring (33); The support plate (31) is fixedly disposed on the top of the terminal body (1); The top end of the pressure rod (32) is integrally formed with a limiting ring (321). The rod body of the pressure rod (32) passes through the support plate (31) and the clearance hole in sequence. A partition plate (322) is fixed on the rod body of the pressure rod (32). The partition plate (322) is located outside the wire hole (11). The bottom end of the pressure rod (32) extends into the wire hole (11). The return spring (33) is sleeved on the outside of the pressure rod (32), and the two ends of the return spring (33) abut against the support plate (31) and the partition plate (322) respectively.
5. A pre-assembled left terminal assembly with an insulating protection structure according to claim 4, characterized in that, The support plate (31) includes a support elongated plate (311) and a connecting vertical plate (312); The support plate (311) covers all the clearance holes, and each pressure rod (32) passes through the support plate (311). The connecting vertical plate (312) is fixed at both ends of the support plate (311), and the connecting vertical plate (312) is fixedly connected to the top surface of the terminal body (1).
6. A pre-assembled left terminal assembly with an insulating protection structure according to claim 4, characterized in that, The support plate (31) includes multiple support short plates (313) and connecting vertical plates (312); Each of the support short plates (313) is covered with a clearance hole, and each of the support short plates (313) corresponds to a pressure rod (32). Both ends of the support short plates (313) are fixedly provided with connecting vertical plates (312), and the connecting vertical plates (312) are fixedly connected to the top surface of the terminal body (1).