A type of connector disassembly expansion pliers

Abstract

This utility model discloses a connector disassembly and expansion pliers, belonging to the technical field of connector disassembly tools, aiming to solve the technical problems of easy damage and inconvenience of manual disassembly of connectors in the prior art. The connector disassembly and expansion pliers include handles, with a pair of handles. One end of each handle is bent towards each other and respectively provided with a first clamping arm and a second clamping arm. The ends of the handles facing the first and second clamping arms are hinged together. The opening and closing of the first and second clamping arms is controlled by the movement of the handles together or apart. This connector disassembly and expansion pliers, utilizing the synergistic action of the handles, first clamping arms, and second clamping arms, can apply force evenly, avoiding the problem of locking ring breakage due to improper force application. This improves the safety and reliability of connector disassembly and avoids the frequent occurrence of locking ring breakage due to uneven or excessive force when disassembling connectors manually in the past. Furthermore, it is easy to operate.

Description

Technical Field

[0001] This utility model belongs to the technical field of joint disassembly tools, specifically relating to a joint disassembly expansion pliers. Background Technology

[0002] In the field of automotive repair and maintenance, the Volkswagen OBD quick-connect connector is a key component connecting the vehicle's diagnostic system to external testing equipment, and the ease and safety of its installation and removal are paramount. OBD (On-Board Diagnostics) is an on-board automatic diagnostic system that monitors the real-time operating status of multiple critical components of a vehicle, such as the engine and emission control system, and stores fault information as codes in the vehicle's electronic control unit. Repair personnel connect the OBD quick-connect connector and use specialized diagnostic equipment to read the fault codes, thereby quickly and accurately locating vehicle faults and performing targeted repairs.

[0003] However, traditional methods have many drawbacks in actual connector disassembly. Currently, the disassembly of Volkswagen OBD quick-connect connectors mainly relies on manual operation. Due to the lack of professional tools, operators often find it difficult to accurately control the magnitude and direction of force during disassembly, easily resulting in uneven or excessive force. Furthermore, the connector's locking ring is usually made of relatively fragile materials, making it prone to breakage under uneven or excessive external force. Once the locking ring is damaged, it not only prevents the connector from being properly disassembled but may also affect the subsequent use of the vehicle's diagnostic system, increasing repair costs and time. Therefore, this application proposes a connector disassembly expansion pliers. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a connector disassembly expansion pliers, which aims to solve the technical problem that the connector is easily damaged and not convenient to disassemble by hand under the existing technology.

[0005] Technical solution To solve the above-mentioned technical problems, this utility model provides a connector disassembly and expansion pliers, including handles. The handles are provided in pairs, with one end of each handle bent towards each other and respectively provided with a first clamping arm and a second clamping arm. The ends of the handles facing the first clamping arm and the second clamping arm are hinged to each other. The two handles can be brought together or separated to control the expansion and closure of the first clamping arm and the second clamping arm. A pair of first clamping heads are provided at the bottom of the first clamping arm, and a pair of second clamping heads are provided at the bottom of the second clamping arm. The pair of first clamping heads and the pair of second clamping heads are aligned. A protrusion is provided on the side of each pair of second clamping heads away from the first clamping heads.

[0006] Preferably, a connecting shaft is provided between the ends of the pair of grips facing the first and second clamp arms, and the pair of grips are hinged to each other via the connecting shaft.

[0007] Preferably, a spring is provided between the pair of grips near the connecting shaft.

[0008] Preferably, the pair of handles are curved in an arc shape toward each other, and the opposite sides of the pair of handles are set as arc surfaces.

[0009] Preferably, the first and second clamp arms are arranged in a flattened manner along the connecting shaft axis, and a pair of first clamp heads and a pair of second clamp heads are respectively distributed at the bottom ends of the first and second clamp arms, and the width of the first and second clamp heads is consistent with that of the first and second clamp arms, respectively.

[0010] Preferably, the opposing surfaces of the first pair of jaws are connected to the lower surface of the first jaw arm to form an arc surface, and the opposing surfaces of the second pair of jaws are connected to the lower surface of the second jaw arm to form an arc surface.

[0011] Preferably, the pair of protrusions are curved in an arc shape toward opposite sides, and the protrusions are generally conical in structure. The inner arc surface of the protrusion is aligned with the inner wall of the second jaw, and the outer arc surface of the protrusion is gradually inclined toward the inner arc surface of the protrusion in a direction away from the second jaw. Beneficial effects

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The reasonable structural design of this utility model utilizes the synergistic effect of components such as the handle, the first clamp arm, and the second clamp arm to apply force evenly, avoiding the problem of the locking ring breaking due to improper force application. This improves the safety and reliability of connector disassembly and avoids the situation where the locking ring is often broken due to uneven or excessive force when disassembling the connector manually in the traditional way.

[0013] In this invention, the first and second pliers have a large contact area with the connector surface, and their widths are consistent with those of the first and second pliers arms, forming an arc surface. This allows for a better fit with the connector, increasing friction and effectively preventing slippage during operation. Simultaneously, the protrusions allow for precise engagement with the retaining ring for connector disassembly, simplifying operation and improving work efficiency.

[0014] In this invention, a pair of handles are curved in an arc shape with their opposite sides facing away from each other. This design conforms to ergonomic principles, better fits the operator's hand curve, increases comfort and stability when holding the handle, reduces fatigue from prolonged operation, and improves the operator's work experience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application 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 only some embodiments of this application. 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 overall structure of this utility model; Figure 2 This is the front view of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is the left view of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the present invention applied to the separation of the first and second joints; Figure 6 This is a schematic diagram of the overall structure of the present invention applied to the separation of the first connector and the second connector.

[0017] The markings in the attached diagram are as follows: 1. Handle; 2. First clamp arm; 3. Second clamp arm; 4. Connecting shaft; 5. Spring; 6. First clamp head; 7. Second clamp head; 8. Protrusion; 9. First connector; 10. Second connector; 11. Locking ring; 12. Snap ring. Detailed Implementation

[0018] 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.

[0019] This embodiment provides a connector disassembly expansion clamp, the structural diagram of which is shown below. Figures 1-6 As shown, it includes a handle 1, a first clamp arm 2, a second clamp arm 3, a first clamp head 6, a second clamp head 7, and a protrusion 8. In this embodiment, a pair of handles 1 are provided, and the pair of handles 1 are curved in an arc shape in the direction away from each other, and the side of the pair of handles 1 that is away from each other is set as an arc surface. This design is ergonomic, makes it easy for the operator to hold, and increases the comfort and stability when holding.

[0020] Furthermore, in this embodiment, one end of the pair of handles 1 is bent towards each other, and a first clamping arm 2 and a second clamping arm 3 are respectively provided at the bent ends. A connecting shaft 4 is provided between the ends of the pair of handles 1 facing the first clamping arm 2 and the second clamping arm 3. The pair of handles 1 are hinged together by the connecting shaft 4, allowing the pair of handles 1 to rotate relative to each other around the connecting shaft 4, thereby realizing the action of the pair of handles 1 moving closer together or separating. At the same time, a spring 5 is provided between the pair of handles 1 near the connecting shaft 4. The spring 5 allows the pliers to remain open in a natural state, making it convenient for the operator to use without having to manually open the pliers after each use.

[0021] Furthermore, in this embodiment, the first clamp arm 2 and the second clamp arm 3 are flattened along the connecting shaft 4. This flattened design makes the pliers more flexible during operation and better adaptable to disassembly of connectors at different angles and positions. A pair of first clamp heads 6 are provided at the bottom of the first clamp arm 2, and a pair of second clamp heads 7 are provided at the bottom of the second clamp arm 3. The pair of first clamp heads 6 and the pair of second clamp heads 7 are aligned. The pair of first clamp heads 6 and the pair of second clamp heads 7 are respectively distributed at the bottom ends of the first clamp arm 2 and the second clamp arm 3, and the widths of the first clamp heads 6 and the second clamp heads 7 are consistent with the widths of the first clamp arm 2 and the second clamp arm 3. This design ensures the connection strength and stability between the clamp heads and the clamp arms.

[0022] Furthermore, the opposing sides of a pair of first jaws 6 connect with the lower surface of the first jaw arm 2 to form an arc surface, and the opposing sides of a pair of second jaws 7 connect with the lower surface of the second jaw arm 3 to form an arc surface as well. This arc surface design can better fit the joint surface, increase the contact area, and reduce damage to the joint.

[0023] In a preferred embodiment, each of the pair of second jaws 7 has a protrusion 8 on the side away from the first jaw 6. The protrusions 8 are curved in an arc shape towards their opposite sides, and the protrusions 8 have an overall conical structure. The inner arc surface of the protrusion 8 is aligned with the inner wall of the second jaw 7, and the outer arc surface of the protrusion 8 gradually slopes towards the inner arc surface of the protrusion 8 in the direction away from the second jaw 7. The size of the protrusion 8 is set according to the outer diameter of the mounting connector to ensure accurate mating with components such as the retaining ring 12 on the connector, enabling effective expansion and disassembly operations.

[0024] In practical use, taking the disassembly of a Volkswagen OBD quick-connect connector as an example, the connector includes a first connector 9 and a second connector 10. A locking ring 11 is provided at the joint of the first connector 9, and a retaining ring 12 is provided at the joint of the second connector 10. The retaining ring 12 nests with the locking ring 11 and engages for locking and limiting. The operator first places the pair of first jaws 6 and 7 at the bottom of the first jaw arm 2 and the second jaw arm 3 onto the first connector 9, with the second jaws 7 facing the second connector 10. Then, pressing the handle 1 causes the first jaw arm 2 and the second jaw arm 3 to separate due to the rotation of the handle 1 around the connecting shaft 4. At this time, the first jaw arm 2 and the pair of first jaws 6 abut against the end flange or boss of the first connector 9. The second jaw arm 3 drives the second jaws 7 and the protrusion 8 towards the second connector 10, forcing the protrusion 8 to be squeezed into the retaining ring 12. Due to the conical structure and special design of the protrusion 8, the retaining ring 12 expands outward during the squeezing process. When the inner diameter of the retaining ring 12 is larger than the outer diameter of the locking ring 11, the retaining ring 12 pops out. Continue to press the handle 1, and when the top of the protrusion 8 contacts the root of the locking ring 11, the retaining ring 12 pushes out the locking ring 11. At this time, the second connector 10 can be easily removed from the first connector 9, completing the disassembly of the connector.

[0025] Working principle: This connector disassembly and expansion pliers is mainly used for separating the first connector 9 and the second connector 10. The first connector 9 is provided with a locking ring 11 at the joint, and the second connector 10 is provided with a retaining ring 12 at the joint. The retaining ring 12 and the locking ring 11 are nested and locked together to achieve a stable connection between the two connectors.

[0026] In use, the pair of first jaws 6 and second jaws 7 at the bottom of the first jaw arm 2 and the second jaw arm 3 are fitted onto the first connector 9, ensuring that the second jaws 7 face the second connector 10. When the handle 1 is pressed, since the pair of handles 1 are hinged together by the connecting shaft 4, the pressing action will cause the pair of handles 1 to rotate around the connecting shaft 4, thereby causing the first jaw arm 2 and the second jaw arm 3 to separate. The first jaw arm 2 and the pair of first jaws 6 abut against the end flange or boss of the first connector 9, providing support. The second jaw arm 3 moves the second jaws 7 and the protrusion 8 toward the second connector 10, and the protrusion 8 will squeeze into the retaining ring 12. Since the protrusion 8 has a conical structure and its outer arc surface gradually slopes inward toward the inner arc surface away from the second jaws 7, it will exert an outward expansion force on the retaining ring 12 during the squeezing process, forcing the retaining ring 12 to expand outward. When the inner diameter of the retaining ring 12 is greater than the outer diameter of the locking ring 11, the retaining ring 12 pops out and no longer provides a locking and limiting function for the locking ring 11. Continue pressing the handle 1. When the top of the protrusion 8 contacts the root of the locking ring 11, the retaining ring 12 will push out the locking ring 11. At this time, the connection between the second connector 10 and the first connector 9 is released, and the second connector 10 can be easily removed from the first connector 9 to complete the disassembly operation.

[0027] All technical features in this embodiment can be freely combined according to actual needs.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connector disassembly spreader, comprising a handle (1), characterized in that: The grip (1) is provided in a pair. One end of the pair of grips (1) is bent close to each other and is respectively provided with a first clamp arm (2) and a second clamp arm (3). The ends of the pair of grips (1) facing the first clamp arm (2) and the second clamp arm (3) are hinged to each other. The pair of grips (1) can control the expansion and closing of the first clamp arm (2) and the second clamp arm (3) by bringing them close together or separating them. The first clamp arm (2) is provided with a pair of first clamp heads (6) at the bottom, and the second clamp arm (3) is provided with a pair of second clamp heads (7) at the bottom. The pair of first clamp heads (6) and the pair of second clamp heads (7) are aligned. The pair of second clamp heads (7) are provided with protrusions (8) on the side away from the first clamp heads (6).

2. The connector disassembly expansion pliers according to claim 1, characterized in that, A connecting shaft (4) is provided between one end of the pair of grips (1) facing the first clamp arm (2) and the second clamp arm (3), and the pair of grips (1) are hinged to each other through the connecting shaft (4).

3. The connector disassembly expansion pliers according to claim 2, characterized in that, A spring (5) is provided between the pair of grips (1) near the connecting shaft (4).

4. The connector disassembly expansion pliers according to claim 1, characterized in that, The pair of handles (1) are curved in an arc shape toward each other, and the opposite sides of the pair of handles (1) are set as arc surfaces.

5. A connector disassembly expansion clamp according to claim 2, characterized in that, The first clamp arm (2) and the second clamp arm (3) are arranged in a flattened manner along the connecting shaft (4). A pair of first clamp heads (6) and a pair of second clamp heads (7) are respectively distributed at the bottom ends of the first clamp arm (2) and the second clamp arm (3), and the first clamp head (6) and the second clamp head (7) are consistent with the width of the first clamp arm (2) and the second clamp arm (3).

6. A connector disassembly expansion clamp according to claim 1, characterized in that, The opposing sides of the first clamp heads (6) are connected to the lower surface of the first clamp arm (2) to form an arc surface, and the opposing sides of the second clamp heads (7) are connected to the lower surface of the second clamp arm (3) to form an arc surface.

7. A connector disassembly expansion clamp according to claim 6, characterized in that, The pair of protrusions (8) are curved in an arc shape toward each other, and the protrusions (8) are generally conical in shape. The inner arc surface of the protrusions (8) is aligned with the inner wall of the second pliers (7), and the outer arc surface of the protrusions (8) is gradually inclined toward the inner arc surface of the protrusions (8) in a direction away from the second pliers (7).

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