Anti-falling wiring terminal structure

By employing a single-shell structure and multi-point limiting design, the problem of terminal blocks falling off during vibration or pulling is solved, achieving stable circuit connection and simplifying installation and disassembly, thus improving the protection and maintenance convenience of the terminal blocks.

CN223809329UActive Publication Date: 2026-01-16KUNSHAN MAOJIKUN METAL TECH CO LTD
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Patent Information

Application Number
CN202520371821.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-01-16
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

Existing terminal blocks are prone to falling off when vibrated or pulled, and snap-fit ​​structures are loose, while screw-fastening structures are cumbersome to install and prone to rust.

Method used

It adopts a single-shell structure, combined with components such as an insulating protective cover, a flip-top base plate, a limiting top plate, and a positioning base plate. Through multi-point limiting and fixing, it prevents the wires from falling off and provides a convenient installation and disassembly method.

Benefits of technology

It effectively prevents the terminals from falling off under external force, improves the stability and reliability of circuit connections, reduces dust and moisture corrosion, extends service life, and simplifies the installation and maintenance process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electrical connection equipment, and particularly discloses an anti-falling wiring terminal structure which comprises a single shell which is arranged to be a row-shaped wiring connector shell structure, grooves are formed in the upper end face and the lower end face of the single shell at equal intervals, an insulating protective cover is installed in the groove in the upper end of the single shell, and the insulating protective cover is arranged in the groove in the lower end of the single shell. And the lower end of the single shell is rotatably connected with the flip type bottom plate, and the groove at the lower end of the single shell and the flip type bottom plate clamp and limit the wiring terminal. According to the anti-falling wiring terminal structure, through the design of the grooves in the upper end and the lower end of the single shell, the insulation protection cover is installed at the upper end of the single shell, and the lower end of the single shell is rotationally connected with the flip type bottom plate, effective protection is provided for the wiring terminal, meanwhile, the flip type bottom plate is aligned with the grooves in the lower end of the single shell to form a circular wiring port, and further, the wiring terminal is prevented from falling off. And the groove is formed inside and is matched with the limiting top plate, the positioning bottom plate and the wire bunching block, so that the electric wire is limited and fixed and is prevented from falling off.
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Description

Technical Field

[0001] This utility model relates to the field of electrical connection equipment technology, specifically to a terminal block structure that prevents detachment. Background Technology

[0002] In electrical systems, terminal blocks are crucial components for ensuring reliable wire connections, and their importance is self-evident. Existing terminal blocks are prone to wire detachment when subjected to external forces such as vibration and pulling, which can not only cause circuit interruptions and affect the normal operation of equipment, but also potentially lead to safety hazards.

[0003] Existing methods for preventing terminal block detachment use a simple snap-fit ​​structure, which is prone to loosening after long-term vibration. Although screw fastening can prevent detachment to some extent, installation and disassembly are cumbersome, and the screws are prone to rust, affecting connection performance. Utility Model Content

[0004] The purpose of this utility model is to provide a terminal block structure that prevents detachment, in order to solve the problems mentioned in the background art, such as the simple snap-on structure being prone to loosening after long-term vibration, and the screw-fastening structure being cumbersome in terms of installation and disassembly.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a terminal block structure for preventing detachment, comprising a single housing, which is configured as a row-shaped connector housing structure, wherein grooves are provided at equal intervals on both the upper and lower end faces of the single housing, and an insulating protective cover is installed in the upper groove of the single housing, and the lower end of the single housing is rotatably connected to a flip-top base plate, wherein the lower groove of the single housing and the flip-top base plate clamp and limit the terminal block.

[0006] One end of the single housing is penetrated by a busbar, and the busbar is connected to one end of the wire adapter frame. The busbar is located near the flip-top bottom plate. An insulating positioning rod penetrates the groove at the upper end of the single housing and also penetrates one end of the insulating protective cover.

[0007] The insulating protective cover has a cavity, and the cavity is connected to a spherical component at one end of the spherical connecting rod. The spherical connecting component at the bottom of the spherical connecting rod has a U-shaped frame, and the U-shaped frame of the spherical connecting rod is engaged with the limiting top plate. The rod body of the spherical connecting rod is a two-section sliding connecting sleeve rod. The bottom end of the limiting top plate abuts against the positioning base plate, and wire harness blocks are respectively provided on the surfaces of the positioning base plate and the limiting top plate.

[0008] By adopting the above technical solution, the device has high overall flexibility, is easy to match with different installation effects, and has strong overall maintainability.

[0009] Preferably, the opening groove at the upper end of the single shell is U-shaped, and the groove at the lower end of the single shell is semi-circular.

[0010] By adopting the above technical solution, different single-shell groove structures facilitate the limiting installation of the device.

[0011] Preferably, the semi-circular groove at the lower end of the single shell is aligned with the semi-circular groove on the surface of the flip-top base plate, and a groove is provided in the circular wiring port formed by the flip-top base plate and the single shell.

[0012] Using the above technical solution, the flip-top base plate and the single shell close together to form a circular wiring opening, which facilitates the binding of cables.

[0013] Preferably, the single housing has a strip opening that connects the insulating protective cover and the flip-top base plate, and a reserved protective cover is installed in the strip opening of the single housing, and the reserved protective cover is made of insulating silicone.

[0014] With the above technical solution, the strip-shaped opening inside the single shell facilitates the removal of the reserved protective cover for quick inspection later.

[0015] Preferably, the flip-top base plate has shafts on both sides that are rotatably connected to the bottom end of the single shell, and the bottom ends of the single shell are engaged with the flip-top base plate.

[0016] Using the above technical solution, the connection point can be quickly disassembled through the rotating connection between the flip-top base plate and the single shell, which facilitates later maintenance.

[0017] Preferably, the limiting top plate penetrates through the single shell, and the single shell is provided with a sloping opening at the penetration point, and the sloping opening of the single shell is opened adjacent to the strip opening.

[0018] By adopting the above technical solution, a sloping opening is made at the point where the single shell is penetrated, making it easier for the limiting top plate to be removed as it is lifted.

[0019] Preferably, the positioning base plate and the limiting top plate are located in the groove of the circular wiring port, and the positioning base plate abuts against the surface of the flip-top base plate.

[0020] By adopting the above technical solution, the positioning base plate and the limiting top plate abut against each other to further limit the cable of the terminal block.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the structure of the anti-detachment terminal block:

[0022] 1. When in use, the device utilizes the groove design at the upper and lower ends of the single housing. An insulating protective cover is installed at the upper end of the single housing, and the lower end of the single housing is rotatably connected to the flip-top base plate, providing effective protection for the wiring terminals. At the same time, the flip-top base plate and the groove at the lower end of the single housing are aligned to form a circular wiring port. Furthermore, grooves are opened inside, which, together with the limiting top plate, positioning base plate, and wire harness block, limit and fix the wires from multiple directions, effectively preventing the wiring terminals from falling off, ensuring stable circuit connection, reducing the corrosion of the wiring terminals by external environmental factors such as dust and moisture, and improving their service life.

[0023] 2. In use, the busbar passes through the single housing and connects to the wire adapter frame to allow direct connection between a single housing and the equipment, or two single housings can be connected, with the assistance of the busbar to achieve current wiring. The busbar provides a stable channel for power transmission and enhances the reliability of the overall electrical connection. At the same time, the insulating positioning rod passes through the single housing, and the cable position is restricted by the cable tie block on one side and the cable tie block on the positioning base plate, which can further fix the internal structure and prevent loosening. Furthermore, the beveled opening at the single housing where the limiting top plate passes through facilitates the adjustment and maintenance of the internal wires. Meanwhile, the reserved protective cover installed at the strip opening of the single housing not only provides protection but also facilitates the addition or modification of the wiring according to actual needs. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the two single-shell assembly of this utility model;

[0025] Figure 2 This is a schematic diagram of the splicing structure of the single-shell housing and the wire adapter frame of this utility model;

[0026] Figure 3 This is a three-dimensional side-section diagram of the internal structure of the single-shell structure of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the insulating protective cover of this utility model in the open state;

[0028] Figure 5 This is a side-sectional three-dimensional structural diagram of the two single-shell spliced ​​parts of this utility model;

[0029] Figure 6 This is a three-dimensional structural diagram of the installation of the limiting top plate, positioning bottom plate, and wire harness block of this utility model.

[0030] In the diagram: 1. Single shell; 2. Insulating protective cover; 3. Flip-top base plate; 4. Wire adapter frame; 5. Busbar; 6. Insulating positioning rod; 7. Spherical connecting rod; 8. Limiting top plate; 9. Positioning base plate; 10. Cable bundle block; 11. Reserved protective cover. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1-6 This utility model provides a technical solution: a terminal block structure that prevents detachment, including a single shell 1, an insulating protective cover 2, a flip-top base plate 3, a wire adapter frame 4, a busbar 5, an insulating positioning rod 6, a spherical connecting rod 7, a limiting top plate 8, a positioning base plate 9, a wire harness block 10, and a reserved protective cover 11.

[0033] Among them, the single housing 1 is configured as a row-shaped wiring connector housing structure. The upper and lower end faces of the single housing 1 are provided with grooves at equal intervals. An insulating protective cover 2 is installed in the upper groove of the single housing 1. The lower end of the single housing 1 is rotatably connected to the flip-type base plate 3. The lower groove of the single housing 1 and the flip-type base plate 3 clamp and limit the wiring terminals.

[0034] One end of the single housing 1 is penetrated by a busbar 5, and the busbar 5 is connected to one end of the wire adapter frame 4. The busbar 5 is close to the side of the flip-top base plate 3. An insulating positioning rod 6 is penetrated in the groove at the upper end of the single housing 1, and the insulating positioning rod 6 penetrates one end of the insulating protective cover 2. The opening groove at the upper end of the single housing 1 is U-shaped, and the groove at the lower end of the single housing 1 is semi-circular. The semi-circular groove at the lower end of the single housing 1 is aligned with the semi-circular groove on the surface of the flip-top base plate 3. A groove is opened in the circular wiring port formed by the flip-top base plate 3 and the single housing 1. A strip opening is opened in the single housing 1 to connect the insulating protective cover 2 and the flip-top base plate 3. A reserved protective cover 11 is installed in the strip opening of the single housing 1. The reserved protective cover 11 is made of insulating silicone. Shafts are provided on both sides of the flip-top base plate 3 to be rotatably connected to the bottom end of the single housing 1. The two sides of the bottom end of the single housing 1 are engaged with the flip-top base plate 3.

[0035] Referring to the attached diagrams in the instruction manual Figure 1-6 As shown, when using the wiring, the installation position is adjusted according to the wiring requirements. When the shunt current needs to be used, the two single housings 1 are connected together, and the wiring effect is achieved through the busbar 5 between the two single housings 1. When using it to connect with other electrical equipment, the busbar 5 of a single housing 1 is directly installed to the electrical equipment to achieve the power transmission connection with other lines.

[0036] During wiring, first open the flip-top base plate 3 around the rotating shaft on both sides of the bottom end of the single housing 1. Since the semi-circular groove at the lower end of the single housing 1 aligns with the semi-circular groove on the surface of the flip-top base plate 3, opening it creates a larger operating space, facilitating subsequent operations. Then, insert the cable into the groove on the surface of the flip-top base plate 3 and the busbar 5 on one side of the single housing 1. As the single housing 1 and the flip-top base plate 3 close, a circular wiring port is formed. Figure 1-4 As shown, at this time, the groove in the circular terminal can initially limit the wire and prevent it from rolling at will. At the same time, the positioning base plate 9 and the limiting top plate 8 are located in the groove of the circular terminal, and the positioning base plate 9 abuts against the surface of the flip-top base plate 3. The wire is placed between the positioning base plate 9 and the limiting top plate 8, and the wire harness block 10 on the inclined surfaces of the two is used to initially fix the wire and prevent it from shifting during the wiring process. As the flip-top base plate 3 is engaged with the bottom sides of the single housing 1, the stability of the overall structure is further ensured, preventing the flip-top base plate 3 from being opened accidentally during use, ensuring that the terminal structure can effectively resist external forces, preventing the wire from falling off, and ensuring the stability and reliability of the circuit connection.

[0037] The insulating protective cover 2 has a cavity, and the cavity of the insulating protective cover 2 is connected to a spherical part at one end of the spherical connecting rod 7. The spherical connecting part at the bottom of the spherical connecting rod 7 is provided with a U-shaped frame, and the U-shaped frame of the spherical connecting rod 7 is engaged with the limiting top plate 8. The rod of the spherical connecting rod 7 is a two-section sliding connecting sleeve rod. The bottom end of the limiting top plate 8 abuts against the positioning bottom plate 9, and the positioning bottom plate 9 and the limiting top plate 8 are respectively provided with wire harness blocks 10. The limiting top plate 8 penetrates the single shell 1, and the single shell 1 is provided with a sloping opening at the penetration point. The sloping opening of the single shell 1 is adjacent to the strip opening. The positioning bottom plate 9 and the limiting top plate 8 are in the groove of the circular wiring port, and the positioning bottom plate 9 abuts against the surface of the flip-type bottom plate 3.

[0038] Referring to the attached diagrams in the instruction manual Figure 1-6As shown, the spherical connecting rod 7 inside the insulating protective cover 2 can rotate flexibly within the cavity of the insulating protective cover 2 via a spherical component at one end. Its bottom U-shaped frame engages with the limiting top plate 8. When it is necessary to further adjust the position of the limiting top plate 8 to better fix the wire, the wire can be clamped by adjusting the height of the spherical connecting rod 7. During this process, the inclined opening of the single shell 1 is adjusted in conjunction with the position adjustment of the limiting top plate 8. At the same time, the insulating positioning rod 6 passes through the groove at the upper end of the single shell 1 and one end of the insulating protective cover 2, further enhancing the structural stability and preventing the insulating protective cover 2 from moving arbitrarily, thus ensuring the protection effect on the internal circuits. The strip opening inside the single shell 1 connects the insulating protective cover 2 and the flip-top bottom plate 3, facilitating later maintenance and observation of the circuit status. When not in use, the strip opening is covered by a reserved protective cover 11 made of insulating silicone material. While ensuring the protection of the internal circuits, if it is necessary to adjust the circuit or add new circuits later, the reserved protective cover 11 can be opened and operated from the strip opening, greatly reducing the overall maintenance and handling difficulty.

[0039] Working principle: When using this anti-detachment terminal block structure, before wiring, open the flip-top base plate 3 and the single housing 1. Insert the wires into the grooves of the flip-top base plate 3. Then, try closing the flip-top base plate 3 and the single housing 1 to check if the wiring is loose. After that, open the flip-top base plate 3 and the single housing 1 again. By opening the insulating protective cover 2, adjust the length of the ball connecting rod 7 so that the position of the limiting top plate 8 can better lower and limit the wires to prevent them from falling off. At the same time, the positioning base plate 9 and the limiting top plate 8 are in the groove of the circular wiring port, and the positioning base plate 9 and the flip-top... The surfaces of the base plates 3 abut against each other, clamping the wires between them. The wires are initially fixed by the wire-binding blocks 10 on the surfaces of the positioning base plate 9 and the limiting top plate 8 to prevent them from sliding during wiring. The flip-top base plate 3 and the bottom sides of the single housing 1 are snapped together to ensure the stability of the overall structure and prevent the flip-top base plate 3 from being opened accidentally. This allows the wiring terminals to effectively resist external forces and ensures a stable circuit connection. When in use, the busbars 5 of the two single housings 1 can be connected together as needed, or the busbars 5 of the single housing 1 can be directly connected to the wire adapter frame 4 to achieve current transmission and increase the overall practicality.

[0040] 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 anti-drop terminal structure, comprising: a single shell (1) is arranged as a row of terminal connector housing structure, the upper and lower end faces of the single shell (1) are provided with grooves at equal intervals, and an insulating protective cover (2) is installed in the upper end groove of the single shell (1), and the lower end of the single shell (1) is rotationally connected with a flip type bottom plate (3), the lower end groove of the single shell (1) is in abutment with the flip type bottom plate (3) to clamp and limit the terminal; characterized in that: one end of the single shell (1) is penetrated by a busbar (5), and the busbar (5) is connected with one end of a wire adapter frame (4), and the busbar (5) is close to one side of the flip type bottom plate (3), the upper end groove of the single shell (1) is penetrated by an insulating positioning rod (6), and one end of the insulating positioning rod (6) penetrates the insulating protective cover (2); a cavity is formed in the insulating protective cover (2), and a spherical part at one end of a spherical connecting rod (7) is connected with the cavity of the insulating protective cover (2), a U-shaped frame is arranged on the spherical connecting part at the bottom end of the spherical connecting rod (7), the U-shaped frame of the spherical connecting rod (7) is clamped and connected with a limiting top plate (8), the rod body of the spherical connecting rod (7) is a two-section slidingly connected sleeve rod, the bottom end of the limiting top plate (8) abuts against a positioning bottom plate (9), and the limiting top plate (8) and the positioning bottom plate (9) are respectively provided with wire binding blocks (10) on the surfaces thereof.

2. The anti-disengagement terminal structure according to claim 1, wherein: The opening groove at the upper end of the single shell (1) is arranged in a U shape, and the groove at the lower end of the single shell (1) is arranged in a semicircle.

3. The anti-dislodgement terminal structure of claim 1, wherein: The semicircular groove at the lower end of the single shell (1) is aligned with a semicircular groove on the surface of the flip type bottom plate (3), and a groove is formed in the circular terminal port formed by the flip type bottom plate (3) and the single shell (1).

4. The anti-dislodgement terminal structure of claim 1, wherein: A strip-shaped opening is formed in the single shell (1) to communicate with the insulating protective cover (2) and the flip type bottom plate (3), a reserved protective cover (11) is installed in the strip-shaped opening of the single shell (1), and the reserved protective cover (11) is made of insulating silica gel.

5. The anti-dislodgement terminal structure of claim 1, wherein: The flip type bottom plate (3) is provided with shafts rotationally connected with the bottom end of the single shell (1) on both sides thereof, and the bottom end of the single shell (1) is clamped and connected with the flip type bottom plate (3) on both sides thereof.

6. The anti-dislodgement terminal structure of claim 1, wherein: The limiting top plate (8) penetrates the single shell (1), and the single shell (1) is provided with a beveled opening at the penetrated part, and the beveled opening of the single shell (1) is adjacent to the strip-shaped opening.

7. The anti-dislodgement terminal structure of claim 1, wherein: The positioning bottom plate (9) and the limiting top plate (8) are in the groove of the circular terminal port, and the positioning bottom plate (9) abuts against the surface of the flip type bottom plate (3).