Anti-loose wire harness terminal

Abstract

The utility model relates to a kind of anti-loosening wire harness terminal, belong to wiring terminal technical field.The anti-loosening wire harness terminal, comprising: first terminal and second terminal, the first terminal is connected between second terminal by anti-loosening component;The first terminal is symmetrically provided with clamping block in the side close to second terminal, the second terminal surface is symmetrically provided with sliding slot, the sliding block is slidably connected in sliding slot and positioning groove, and the sliding block surface is fixedly connected with the sliding frame slidably connected on the second terminal surface, the above-mentioned anti-loosening wire harness terminal, by the cooperation of clamping plate, limiting head and first spring in anti-loosening component, first terminal and second terminal can be connected stable, effectively prevent terminal loosening due to vibration, pulling and other external force, improve the reliability of wire harness connection;Through the mutual cooperation of sliding block and sliding frame, it can be conveniently unlocked, and the installation and disassembly between the first terminal and second terminal are more convenient.

Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, and in particular to a wire harness terminal block that prevents loosening. Background Technology

[0002] Terminal blocks are a type of component that people frequently encounter. Their function is very simple: to bridge the gaps in a circuit or between isolated circuits, thereby allowing current to flow and enabling the circuit to perform its intended function. Terminal blocks are an indispensable component in automotive wiring.

[0003] As shown in the reference case "An automotive terminal block for preventing wire harness detachment" (publication number CN221226722U), the wire harness assembly is connected by a plastic-sealed head fixedly connected to the left end face of the base. This solves the problem that existing methods mostly rely on elastic snap-fit ​​to engage the two connected terminals. The frictional force limits the quick fixation of the receiving end and the insertion end. Compared with the traditional elastic snap-fit ​​method, this design is more secure and effectively extends the overall service life of the device, further improving the overall reliability and stability of the device. It effectively prevents the insertion end and the receiving end from detaching, which could cause abnormal connection between the wire harness assemblies.

[0004] However, when installing and removing the above-mentioned terminals, it is necessary to tighten the nut to prevent loosening through friction. If the number of turns of the nut is insufficient, the loosening effect is poor. If the number of turns of the nut is excessive, the squeezing force is large, which can damage the terminal connection. It is also difficult to control the force and the installation and removal speed is slow. Utility Model Content

[0005] Therefore, it is necessary to provide a wire harness terminal that prevents loosening, addressing the issues of slow installation and removal speeds and difficulty in controlling force.

[0006] A wire harness terminal block for preventing loosening includes: a first terminal and a second terminal, which are connected by an anti-loosening component; wherein, the anti-loosening component includes a positioning groove on one side of the second terminal, a clamping plate rotatably connected in the positioning groove, a limit head fixedly connected to one side of the clamping plate, the two clamping plates being fixedly connected by a first spring, and a sliding block being provided between the two clamping plates; a locking block is symmetrically provided on the side of the first terminal near the second terminal; a sliding groove is symmetrically provided on the surface of the second terminal; the sliding block is slidably connected in the sliding groove and the positioning groove, and a sliding frame slidably connected to the surface of the sliding block is fixedly connected to the surface of the second terminal.

[0007] In one embodiment, the sliding frame completely covers the slide groove, and an anti-slip pad is fixedly connected to the surface of the sliding frame.

[0008] In one embodiment, both the limiting head and the card block are polished, the card block is arc-shaped near the positioning groove, and the limiting head is circular.

[0009] In one embodiment, an annular protrusion is fixedly connected to one side of the first terminal, and an annular groove is formed at the corresponding position of the second terminal.

[0010] In one embodiment, a disengagement component is further provided between the first terminal and the second terminal. The disengagement component includes a positioning rod symmetrically arranged on one side of the first terminal, and a positioning hole is opened at the corresponding position of the second terminal. A second spring is fixedly connected in the positioning hole.

[0011] In one embodiment, the length of the positioning rod is greater than the length of the locking block, the positioning rod is clearance-fitted with the positioning hole, and the diameter of the second spring is smaller than the diameter of the positioning hole.

[0012] In one embodiment, a guide head is fixedly connected to the end of the positioning rod away from the first terminal, and the guide head is shaped like a frustum conical.

[0013] In one embodiment, the length of the second spring in its natural state is greater than the depth of the positioning hole, and the elastic force of the second spring is less than the maximum tension of the first spring.

[0014] Beneficial effects 1. The above-mentioned anti-loosening wire harness terminal, through the cooperation of the clamp, limit head and the first spring in the anti-loosening component, can make the connection between the first terminal and the second terminal secure, effectively preventing the terminal from loosening due to external forces such as vibration and pulling, and improving the reliability of the wire harness connection; through the cooperation of the sliding block and the sliding bracket, the locking can be easily released, and the installation and disassembly between the first terminal and the second terminal is relatively convenient, simply by inserting them tightly; 2. Through the cooperation of the positioning rod and the second spring, the terminals can be quickly separated, taking into account both connection stability and ease of operation. Furthermore, the guiding and positioning effect of the positioning rod and the positioning hole facilitates the quick connection between the first terminal and the second terminal. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the second terminal of this utility model; Figure 3 This is a schematic diagram of the structure of the first terminal of this utility model; Figure 4 This is a schematic diagram of the detachable component of this utility model; Figure 5 This is a cross-sectional view of the connection between the first and second terminals of this utility model. Figure 6 For the present utility model Figure 5 Enlarged view of point A in the middle.

[0017] Figure label: 100, First terminal; 200, Second terminal; 300, Anti-loosening component; 310, Positioning groove; 320, Clamping plate; 330, Limiting head; 340, First spring; 350, Sliding block; 360, Slide groove; 370, Sliding frame; 380, Locking block; 400, Disengagement component; 410, Positioning rod; 420, Positioning hole; 430, Second spring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of 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 some, not all, of the embodiments of this utility model. 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.

[0019] The following is combined with Figures 1-6 This invention describes an anti-loosening wire harness terminal block.

[0020] In one embodiment, a non-loosening wire harness terminal includes: a first terminal 100 and a second terminal 200, which are connected by a non-loosening component 300. The non-loosening component 300 includes a positioning groove 310 on one side of the second terminal 200, a clamping plate 320 rotatably connected in the positioning groove 310, a limit head 330 fixedly connected to one side of the clamping plate 320, and the two clamping plates 320 are fixedly connected by a first spring 340. A sliding block 350 is also provided between the two clamping plates 320. A locking block 380 is symmetrically provided on the side of the first terminal 100 near the second terminal 200. A sliding groove 360 ​​is symmetrically provided on the surface of the second terminal 200. The sliding block 350 is slidably connected in the sliding groove 360 ​​and the positioning groove 310, and a sliding frame 370 is fixedly connected to the surface of the sliding block 350 and slidably connected to the surface of the second terminal 200.

[0021] like Figure 1 , Figure 2 and Figure 6 As shown, the sliding frame 370 completely covers the sliding groove 360, and an anti-slip pad is fixedly connected to the surface of the sliding frame 370. The surfaces of the limiting head 330 and the locking block 380 are both polished. The locking block 380 is arc-shaped near the positioning groove 310, and the limiting head 330 is circular. An annular protrusion is fixedly connected to one side of the first terminal 100, and an annular groove is formed at the corresponding position of the second terminal 200.

[0022] In this embodiment, the anti-slip pad increases the friction when the operator pulls the sliding frame 370, facilitating operation and preventing slippage. The polishing treatment of the surfaces of the limiting head 330 and the locking block 380 reduces the frictional resistance when they come into contact, making the insertion of the locking block 380 into the positioning groove 310 smoother. The arc-shaped setting of the locking block 380 near the positioning groove 310 and the circular setting of the limiting head 330 work together to reduce the resistance when the locking block 380 presses against the clamping plate 320, improving the connection efficiency. The cooperation between the annular protrusion and the annular groove plays a role in positioning and auxiliary sealing when the first terminal 100 and the second terminal 200 are attached, enhancing the stability of the connection between the two. After the first terminal 100 and the second terminal 200 are connected, it prevents dust and impurities from entering the interior of the terminals, providing a certain degree of protection.

[0023] like Figure 2 , Figure 3 and Figure 4 As shown, a disengagement component 400 is also provided between the first terminal 100 and the second terminal 200. The disengagement component 400 includes a positioning rod 410 symmetrically arranged on one side of the first terminal 100, and a positioning hole 420 is opened at the corresponding position of the second terminal 200. A second spring 430 is fixedly connected in the positioning hole 420. The length of the positioning rod 410 is greater than the length of the locking block 380, and the positioning rod 410 is clearance-fitted with the positioning hole 420. The diameter of the second spring 430 is smaller than the diameter of the positioning hole 420. A guide head is fixedly connected to the end of the positioning rod 410 away from the first terminal 100. The guide head is shaped like a frustum of a cone. The length of the second spring 430 in its natural state is greater than the depth of the positioning hole 420, and the elastic force of the second spring 430 is less than the maximum tension of the first spring 340.

[0024] In this embodiment, the disengagement component 400 facilitates the separation of the first terminal 100 and the second terminal 200. After the first terminal 100 and the second terminal 200 are disengaged, the positioning rod 410, under the action of the second spring 430, drives the first terminal 100 to move away from the second terminal 200, thereby separating the first terminal 100 and the second terminal 200. This facilitates the separation of the first terminal 100 and the second terminal 200 in certain confined spaces. The truncated cone design of the guide head facilitates the precise insertion of the positioning rod 410 into the positioning hole 420, reducing deviations during the docking process. The clearance fit between the positioning rod 410 and the positioning hole 420 ensures smooth movement of the positioning rod 410 within the positioning hole 420. The length of the second spring 430 in its natural state is greater than the depth of the positioning hole 420, allowing the positioning rod 410 to compress the second spring 430 when the first terminal 100 is connected to the second terminal 200, providing sufficient elasticity for separation. The elasticity of the second spring 430 is less than the maximum tension of the first spring 340, ensuring that the elasticity of the second spring 430 will not affect the secure locking of the anti-loosening component 300 when the first terminal 100 and the second terminal 200 are locked together. Furthermore, the length of the positioning rod 410 is greater than the length of the locking block 380. When the first terminal 100 is connected to the second terminal 200, the positioning rod 410 and the positioning hole 420 are used to position the first terminal 100 and the second terminal 200 to ensure the accuracy of the connection and to ensure that the locking block 380 can be accurately inserted into the positioning groove 310.

[0025] Working principle: When connecting the first terminal 100 and the second terminal 200, the first terminal 100 is brought closer to the second terminal 200. Guided by the positioning rod 410 and the positioning hole 420, the first terminal 100 moves closer to the second terminal 200. The locking block 380 is gradually inserted into the positioning groove 310. The arc-shaped surface of the locking block 380 presses against the two clamping plates 320, causing the clamping plates 320 to rotate outward against the tension of the first spring 340. At this time, the positioning rod 410 penetrates into the positioning hole 420 and gradually compresses the second spring 430. When the first terminal 100 and the second terminal 200 are fully engaged, the annular protrusion engages in the annular groove. At this time, under the pull of the first spring 340, the clamping plate 320 drives the limiting head 330 to engage in the slot on the surface of the locking block 380, completing the locking of the first terminal 100 and the second terminal 200, preventing the terminals from separating and falling off due to bumps or other factors.

[0026] When it is necessary to separate the first terminal 100 and the second terminal 200, the sliding bracket 370 is pulled. The sliding bracket 370 drives the sliding block 350 to move within the sliding groove 360 ​​and the positioning groove 310. The sliding block 350 pushes the two clamping plates 320 to rotate outward against the tension of the first spring 340, causing the limiting head 330 to disengage from the slot on the surface of the clamping block 380. At this time, the compressed second spring 430 releases its elastic force, pushing the positioning rod 410 to move the first terminal 100 away from the second terminal 200, thus separating the first terminal 100 from the second terminal 200. In some space-constrained locations, it is not necessary to pull out the two connected terminals separately with both hands, making disassembly convenient.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wire harness terminal block for preventing loosening, characterized in that, include: A first terminal (100) and a second terminal (200) are connected by an anti-loosening component (300); The anti-loosening component (300) includes a positioning groove (310) on one side of the second terminal (200), a clamping plate (320) is rotatably connected in the positioning groove (310), a limiting head (330) is fixedly connected to one side of the clamping plate (320), the two clamping plates (320) are fixedly connected by a first spring (340), and a sliding block (350) is also provided between the two clamping plates (320). A locking block (380) is symmetrically arranged on the side of the first terminal (100) near the second terminal (200), and a sliding groove (360) is symmetrically opened on the surface of the second terminal (200). The sliding block (350) is slidably connected in the sliding groove (360) and the positioning groove (310), and a sliding frame (370) is fixedly connected to the surface of the sliding block (350) and slidably connected to the surface of the second terminal (200).

2. The anti-loosening wire harness terminal according to claim 1, characterized in that, The sliding frame (370) completely covers the slide groove (360), and an anti-slip pad is fixedly connected to the surface of the sliding frame (370).

3. The anti-loosening wire harness terminal according to claim 1, characterized in that, The surfaces of the limiting head (330) and the locking block (380) are both polished. The locking block (380) is arc-shaped on the side near the positioning groove (310), and the limiting head (330) is circular.

4. The anti-loosening wire harness terminal according to claim 1, characterized in that, The first terminal (100) has an annular protrusion fixedly connected to one side, and the second terminal (200) has an annular groove at the corresponding position.

5. The anti-loosening wire harness terminal according to claim 1, characterized in that, A disengagement component (400) is also provided between the first terminal (100) and the second terminal (200). The disengagement component (400) includes a positioning rod (410) symmetrically arranged on one side of the first terminal (100). A positioning hole (420) is opened at the corresponding position of the second terminal (200). A second spring (430) is fixedly connected in the positioning hole (420).

6. The anti-loosening wire harness terminal according to claim 5, characterized in that, The length of the positioning rod (410) is greater than the length of the locking block (380), the positioning rod (410) is clearance-fitted with the positioning hole (420), and the diameter of the second spring (430) is smaller than the diameter of the positioning hole (420).

7. The anti-loosening wire harness terminal according to claim 5, characterized in that, The positioning rod (410) has a guide head fixedly connected to one end away from the first terminal (100), and the guide head is shaped like a frustum cone.

8. The anti-loosening wire harness terminal according to claim 5, characterized in that, The length of the second spring (430) in its natural state is greater than the depth of the positioning hole (420), and the elastic force of the second spring (430) is less than the maximum tension of the first spring (340).

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