A labor-saving pliers for high-voltage harness connector disassembly

Abstract

This utility model discloses a labor-saving pliers for disassembling high-voltage wire harness connectors, belonging to the technical field of manual disassembly tools. The labor-saving pliers include a handle, a pliers body fixed to the handle, and a first pressing block fixed to the pliers body. It also includes a handle, a first sliding plate, and a disassembly assembly with a quick-change structure; the disassembly assembly includes a second detachable pressing block, a second sliding plate, a limiting block, a pressing rod, and a spring, with a slot within the second pressing block. During operation, the handle drives the first sliding plate, which in turn moves the second sliding plate and the second pressing block toward the first pressing block to achieve clamping. During replacement, pressing the pressing rod drives the second sliding plate to move, causing the limiting block fixed thereon to disengage from the slot. This utility model solves the problems of fixed jaws and poor versatility in existing disassembly pliers, and has the advantages of ingenious structure, tool-free quick jaw replacement, multi-purpose use, and labor-saving and convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of manual disassembly tools, and in particular to a force-saving pliers for disassembling high-voltage wire harness connectors. Background Technology

[0002] With the rapid development of new energy technologies, especially the electric vehicle industry, the safety and reliability of high-voltage wiring harnesses, as core energy transmission components, are of paramount importance. High-voltage wiring harness connectors are key components ensuring circuit integrity and safe connection. To prevent accidental detachment under harsh conditions such as high vibration, these connectors are typically designed with complex and robust self-locking mechanisms.

[0003] When performing vehicle repair, maintenance, or assembly work, it is necessary to disassemble these high-voltage wiring harness connectors. Due to their precise locking structure, disassembling them directly by hand or with general-purpose pliers can easily damage the connector's clips or housing due to improper application of force or excessive force, creating serious safety hazards. Therefore, the industry typically uses specialized disassembly pliers for this operation.

[0004] Existing specialized connector removal pliers typically have jaws designed with a fixed shape specific to the unlocking mechanism of a particular connector model. However, in practical applications, a single device or vehicle often uses multiple high-voltage wiring harness connectors from different suppliers, with varying specifications, sizes, and unlocking methods. This necessitates maintenance personnel carrying a complete set of specialized pliers for each connector, increasing tool costs and carrying burden, and requiring frequent tool changes during operation, significantly reducing work efficiency. Current technology lacks a universal solution capable of adapting to the diverse connector removal needs.

[0005] Therefore, this utility model proposes a force-saving pliers for disassembling high-voltage wire harness connectors to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems that existing force-saving pliers for disassembling high-voltage wire harness connectors have a single and fixed jaw structure, which cannot adapt to connectors of different sizes and specifications, resulting in poor versatility and limited functionality, this utility model aims to provide a force-saving pliers for disassembling high-voltage wire harness connectors with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a force-saving pliers for disassembling high-voltage wire harness connectors, including: a handle, a pliers body fixed to the handle, and a first pressing block fixed to the pliers body; it also includes a handle, a first sliding plate, a second sliding plate, a second pressing block, a limiting block, a pressing rod, and a spring.

[0008] The second extrusion block has a locking slot inside, and it is detachably mounted on the second sliding plate.

[0009] Furthermore, the handle is pivotally connected to the grip or clamp body, and the handle is driven to one end of the sliding plate one. The other end of the sliding plate one is used to drive the sliding plate two. The sliding plate two is slidably mounted on the clamp body. The limiting block is fixed to the sliding plate two and selectively engages with the slot of the pressing block two. The pressing rod is movably inserted in the sliding plate two and is used to drive the sliding plate two together with the limiting block thereon to move together, so that the limiting block is disengaged from the slot. The spring is used to apply a reset thrust to the sliding plate two so that the limiting block remains engaged with the slot.

[0010] Preferably, the clamp body and the squeezing block together constitute a restricting mechanism.

[0011] Preferably, the handle and the sliding plate together constitute the extrusion mechanism.

[0012] Preferably, the second extrusion block, the extrusion rod, the second sliding plate, the limiting block, the spring, and the slot together constitute the disassembly assembly.

[0013] Preferably, the spring is sleeved on the outer periphery of the extrusion rod, and the two ends of the spring abut against the sliding plate and a flange at the end of the extrusion rod, respectively.

[0014] Preferably, the sliding plate 2 is provided with a guide groove, and the base of the extrusion block 2 is provided with a guide rail that slides in cooperation with the guide groove, for guiding the disassembly and installation of the extrusion block 2.

[0015] Preferably, the limiting block is a pin-shaped structure, and the slot is a groove or through hole adapted to the pin-shaped structure.

[0016] Preferably, the compression block is detachably fixed to the clamp body by means of a threaded or snap-fit ​​structure.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model solves the problem that the jaw structure of the existing disassembly pliers is single and fixed, and cannot adapt to connectors of different sizes and specifications, by setting a detachable squeezing block and designing a quick-change assembly consisting of a squeezing rod, a sliding plate, a limiting block and a spring. It achieves the effect of disassembling multiple connectors by simply changing the squeezing block of different shapes, which greatly enhances the versatility and applicability of the tool.

[0019] 2. This utility model, through the ingenious cooperation of the extrusion rod, the spring-driven limiting block, and the slot, solves the problem of cumbersome operation when changing the jaws of existing interchangeable head tools, which sometimes requires the use of other tools to complete the disassembly and assembly. It achieves the effect of quickly and easily changing the extrusion block by hand without the need for any additional tools, making the operation simple and fast and significantly improving the efficiency of maintenance work.

[0020] 3. This utility model, by setting up a grip and handle that cooperate with each other, uses the lever principle to drive the sliding plate to drive the squeezing block for clamping, which solves the problem of laborious manual operation when disassembling some tightly fitted or connectors that require a large pressing force to unlock. It achieves the effect of amplifying the operating force and reducing the physical exertion of the workers, making the disassembly process more labor-saving and easy. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a force-saving pliers for disassembling high-voltage wire harness connectors according to the present invention.

[0022] Figure 2 This is a schematic diagram of the squeezing block of a force-saving pliers for disassembling high-voltage wire harness connectors according to the present invention.

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0025] Legend:

[0026] 1. Handle;

[0027] 2. Restriction mechanism; 21. Clamp body; 22. Extrusion block one;

[0028] 3. Extrusion mechanism; 31. Handle; 32. Sliding plate one;

[0029] 4. Disassembly components; 41. Compression block two; 42. Compression rod; 43. Sliding plate two; 44. Limiting block; 45. Spring; 46. Slot. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in 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 a part of the embodiments of this utility model, and not all of them. 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.

[0031] Example:

[0032] Please refer to Figures 1 to 4 This utility model provides a force-saving pliers for disassembling high-voltage wire harness connectors, which aims to solve the problem that the existing pliers for disassembling high-voltage wire harness connectors have a single clamping jaw structure, which cannot adapt to connectors of different sizes and specifications, resulting in poor versatility.

[0033] like Figure 1 As shown, the force-saving pliers for disassembling high-voltage wire harness connectors include a handle 1 and a clamp body 21 fixedly connected to the handle 1. The handle 1 is used for the operator to grip and apply force. The clamp body 21 serves as the mounting base for the entire device. A clamping block 22 is fixed on the clamp body 21. The clamp body 21 and the clamping block 22 together constitute a limiting mechanism 2. The limiting mechanism 2 provides a fixed limiting platform for the clamping action. The force-saving pliers also include a handle 31 pivotally connected to the handle 1 or the clamp body 21. One end of the handle 31 is drivenly connected to a sliding plate 32. The handle 31 and the sliding plate 32 together constitute a clamping mechanism 3. The other end of the sliding plate 32 drives a disassembly component 4. When the handle 31 is pulled upward, the sliding plate 32 moves upward, thereby driving the disassembly component 4 to move towards the clamping block 22, thus achieving the clamping of the high-voltage wire harness connector.

[0034] Please refer to the following carefully. Figures 2 to 4 The core structure is described in detail below: The disassembly assembly 4 includes a second sliding plate 43, a second pressing block 41, a pressing rod 42, a limiting block 44, a spring 45, and a slot 46 formed inside the second pressing block 41; the second sliding plate 43 is slidably mounted on the clamp body 21 and is driven by the other end of the first sliding plate 32; the second pressing block 41 is detachably mounted on the second sliding plate 43 and is used to cooperate with the first pressing block 22 to clamp the connector; specifically, the second sliding plate 43 is provided with a guide groove, and the base of the second pressing block 41 is correspondingly provided with a guide rail that slides and cooperates with the guide groove. The cooperation structure of the track and groove provides precise guidance and limitation for the disassembly and installation of the second pressing block 41, ensuring the stability of the installation.

[0035] To achieve locking and unlocking of the compression block 41, a limiting block 44 is fixed on the sliding plate 43. The limiting block 44 is a pin-shaped structure, and the slot 46 inside the compression block 41 is a groove or through hole that matches the pin-shaped structure. In the installed state, the limiting block 44 is engaged in the slot 46 to fix the compression block 41. The compression rod 42 is movably inserted into the sliding plate 43. Its function is to drive the sliding plate 43 and the limiting block 44 on it to move together, thereby disengaging the limiting block 44 from the slot 46 and releasing the locking of the compression block 41. The spring 45 is used to provide a restoring force. When the compression rod 42 is not subjected to external force, the spring 45 always applies a restoring thrust to the sliding plate 43 to keep the limiting block 44 in the locked state engaged with the slot 46.

[0036] As a preferred structural division method, the clamp body 21 and the first pressing block 22 together constitute a limiting mechanism 2, providing a stable fixed reference for the clamping action; the handle 31 and the first sliding plate 32 together constitute a pressing mechanism 3, which is used to convert the hand operation force into a linear driving force; the second pressing block 41, the pressing rod 42, the second sliding plate 43, the limiting block 44, the spring 45 and the slot 46 together constitute a disassembly assembly 4, which integrates clamping and quick replacement functions.

[0037] As a preferred embodiment, to achieve a reliable reset function, please refer to... Figure 2 Spring 45 is a compression spring. Spring 45 is sleeved on the outer periphery of extrusion rod 42, and the two ends of spring 45 abut against the inner wall of sliding plate 43 and a flange at the end of extrusion rod 42, respectively. With this arrangement, spring 45 can continuously apply a stable thrust to sliding plate 43, causing it to tend to lock.

[0038] As another preferred embodiment, in order to further improve the smoothness and accuracy of the replacement process of the second extrusion block 41, a guide groove is provided on the second sliding plate 43, and a guide rail correspondingly provided at the base of the second extrusion block 41 to slide in cooperation with the guide groove. When the second extrusion block 41 is installed or removed, the guide rail slides along the guide groove, effectively preventing skewing or shaking during the installation process.

[0039] As a specific implementation of the locking structure, the limiting block 44 is preferably a pin-shaped structure, and the slot 46 is correspondingly designed as a groove or through hole that matches the shape and size of the pin-shaped structure. This pin-slot fit structure is simple and reliable, can withstand large shear forces, and ensures the stability of the locked state.

[0040] In order to enable this utility model to adapt to more types of connectors, as a preferred option, the compression block 22 is also designed to be detachable. It is detachably fixed to the clamp body 21 by means of threads or snap-fit ​​structure, thereby allowing the user to combine and replace the upper and lower compression blocks, which greatly expands the applicability of the tool.

[0041] The working principle is as follows:

[0042] When it is necessary to clamp and disassemble the high-voltage wire harness connector, the operator holds the handle 1 and pulls the handle 31 upward. The handle 31 rotates around its pivot point, which drives the sliding plate 32 connected to it to move upward. The sliding plate 32 then pushes the sliding plate 43 in the disassembly assembly 4, so that the pressing block 41 installed on the sliding plate 43 moves towards the pressing block 22 fixed on the clamp body 21. Finally, the disassembly operation of the connector is completed through the coordinated clamping of the pressing block 22 and the pressing block 41.

[0043] When it is necessary to replace the second pressing block 41 to accommodate connectors of different specifications, press the pressing rod 42 inward. When the pressing rod 42 moves, it will compress the spring 45 and drive the second sliding plate 43 to move together with the limiting block 44 fixed on it. As the limiting block 44 moves, it disengages from the slot 46 inside the second pressing block 41. At this time, the locking state of the second pressing block 41 is released, and the operator can slide the second pressing block 41 outward along the guide groove opened on the second sliding plate 43, thereby achieving quick disassembly.

[0044] When installing the new extrusion block 41, press the extrusion rod 42 inward again to retract the limiting block 44. Align the guide rail of the new extrusion block 41 with the guide groove of the sliding plate 43 and slide it in. After the extrusion block 41 has slid into place, release the extrusion rod 42. Under the restoring force generated by the compression of the spring 45, the sliding plate 43 is pushed back to its original position, and the limiting block 44 automatically engages in the slot 46 of the new extrusion block 41 to complete the locking. Through the synergistic action of the extrusion rod 42, the sliding plate 43, the limiting block 44, the spring 45, and the slot 46, this utility model solves the problems of fixed jaws and poor versatility of existing tool pliers.

Claims

1. A force-saving pliers for disassembling high-voltage wire harness connectors, comprising a handle (1) and a pliers body (21) fixed to the handle (1), wherein a pressing block (22) is fixed on the pliers body (21); Its features are, The force-saving clamp also includes: A handle (31) pivotally connected to the grip (1) or clamp body (21); A sliding plate (32) is connected at one end to the handle (31) in a transmission manner; Sliding plate two (43) is slidably mounted on the clamp body (21) and driven by the other end of the sliding plate one (32); The extrusion block 2 (41) has a slot (46) inside and is detachably mounted on the sliding plate 2 (43); A limiting block (44) is fixed to the sliding plate (43) and selectively engages with the slot (46); A pressing rod (42) is movably inserted into the second sliding plate (43) and is used to drive the second sliding plate (43) together with the limiting block (44) thereon to move so that the limiting block (44) disengages from the slot (46); And a spring (45) for applying a reset thrust to the second sliding plate (43) so that the limiting block (44) remains engaged with the slot (46).

2. The force-saving pliers for disassembling high-voltage wire harness connectors according to claim 1, characterized in that, The clamp (21) and the compression block (22) together constitute the limiting mechanism (2).

3. The force-saving pliers for disassembling high-voltage wire harness connectors according to claim 1, characterized in that, The handle (31) and the sliding plate (32) together constitute the pressing mechanism (3).

4. The force-saving pliers for disassembling high-voltage wire harness connectors according to claim 1, characterized in that, The compression block (41), compression rod (42), sliding plate (43), limiting block (44), spring (45) and slot (46) together constitute the disassembly assembly (4).

5. The force-saving pliers for disassembling high-voltage wire harness connectors according to claim 1, characterized in that, The spring (45) is sleeved on the outer periphery of the extrusion rod (42), and the two ends of the spring (45) respectively abut against the sliding plate (43) and a flange at the end of the extrusion rod (42).

6. The force-saving pliers for disassembling high-voltage wire harness connectors according to claim 1, characterized in that, The sliding plate 2 (43) is provided with a guide groove, and the base of the extrusion block 2 (41) is provided with a guide rail that slides in cooperation with the guide groove to guide the disassembly and installation of the extrusion block 2 (41).

7. The force-saving pliers for disassembling high-voltage wire harness connectors according to claim 1, characterized in that, The limiting block (44) is a pin-shaped structure, and the slot (46) is a groove or through hole adapted to the pin-shaped structure.

8. The force-saving pliers for disassembling high-voltage wire harness connectors according to claim 1, characterized in that, The compression block (22) is detachably fixed to the clamp body (21) by a snap-fit ​​structure.

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