A quick-release, wide-opening pliers wrench with a pivot pin

Abstract

This utility model provides a quick-opening, wide-opening pliers wrench with a pivot pin, relating to the field of wrench technology. It includes a fixed pliers body with an arc-shaped groove inside. A pivot pin body is slidably connected within the arc-shaped groove, and a compression spring is fixed inside the pivot pin body. A steel ball is fixed to one end of the compression spring, and the steel ball slides within the pivot pin body. A pin cap is fixed to the top of the pivot pin body. This device consists of seven parts: a fixed pliers body, a movable handle body, a wrench jaw, a pivot pin body, a pin cap, a compression spring, and a steel ball. The arc-shaped groove inside the fixed pliers body is a single-sided arc, making opening and closing smoother and more convenient, thus achieving quick size adjustment. It has a wide range of applications, suitable for water and electricity installations and industrial and mining enterprises. Compared with similar tools, this improved wrench eliminates the need for frequent pressing of the pivot pin; the desired size can be moved simply by pulling it open. It has a larger clamping range and is more practical.

Description

Technical Field

[0001] This utility model relates to the field of wrench technology, and in particular to a quick-release large-opening pliers wrench with a pivot pin. Background Technology

[0002] In industries such as machinery manufacturing, construction, and power, it is often necessary to tighten or loosen large bolts, nuts, or other pipe fittings. Traditional wrenches have limited opening sizes, making it difficult to meet the clamping requirements of large workpieces. However, wide-opening pliers can open a larger diameter to accommodate large workpieces of different specifications, improving the efficiency of installation and maintenance of large equipment in industrial production.

[0003] Currently, a type of quick-release large-opening pliers wrench with a pivot pin typically consists of seven parts: a fixed pliers body, a movable handle body, a pliers jaw, a pivot pin, a pin cover, a leaf spring, and a Phillips head screw. During use, the pivot pin needs to be pressed frequently to disengage and clamp the workpiece. This manual adjustment method is slow, inefficient, and cumbersome. Furthermore, due to variations in workpiece thickness and size, each adjustment may not reach the appropriate clamping position, making it difficult to achieve a tight clamping in one go. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that existing wrenches generally consist of seven parts: a fixed clamp body, a movable handle body, a wrench opening, a pivot pin, a pin cover, a leaf spring, and a Phillips head screw. During use, the pivot pin needs to be pressed frequently to disengage and clamp the workpiece. Manual adjustment is slow, inefficient, and cumbersome. Furthermore, the pivot pin needs to be pressed frequently to adjust the opening, which is tedious and slow. Because the thickness and size of the workpiece vary, each adjustment may not reach the appropriate clamping position, making it difficult to achieve a tight clamping in one go. Therefore, this invention proposes a quick-release, large-opening pliers wrench with a pivot pin.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick-release large-opening pliers wrench with a pivot pin, comprising a fixed pliers body, an arc-shaped groove toothed interior of the fixed pliers body, a pivot pin body slidably connected within the arc-shaped groove toothed interior, a compression spring fixed within the pivot pin body, a steel ball fixed at one end of the compression spring, the steel ball sliding within the pivot pin body, a pin cap fixed at the top of the pivot pin body, and a movable handle body rotatably connected to the outer side of the pivot pin body, located on the side of the steel ball, with the end of the steel ball away from the compression spring abutting against the movable handle body, and a pivot pin toothed at one end of the pivot pin body matching the arc-shaped groove toothed interior.

[0006] Preferably, the fixing clamp body has a groove on one side of the arc-shaped groove tooth that matches the arc-shaped groove tooth, and one end of the pivot pin tooth abuts against the arc-shaped groove tooth.

[0007] Preferably, the angle of the groove is parallel to the angle of the arc-shaped groove teeth.

[0008] Preferably, the fixing clamp body is provided with a plate opening, and both ends of the inner wall of the plate opening are fixed with bosses, which slide in the groove.

[0009] Preferably, one end of the plate opening is rotatably connected to the main body of the pivot pin, and the object is held between the fixing clamp and the plate opening.

[0010] Preferably, the movable handle body has a movable handle arc that matches the pivot pin body and the steel ball.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] In this invention, by grasping the fixed handle built into the fixed clamp body and pulling the movable handle body upwards, the movable handle rotates, applying force to the compression spring and steel ball, causing the pivot pin to separate from the arc-shaped groove of the fixed clamp body. This allows the plate jaw boss to move rapidly along the grooves on both sides of the fixed clamp body. When clamping, by grasping the fixed clamp body and pulling the movable handle body upwards, the movable handle rotates, applying force to the compression spring and steel ball, causing the pivot pin to separate from the arc-shaped groove of the fixed clamp body and move backwards. Simultaneously, the plate jaw boss moves backwards along the double grooves on the fixed clamp body. When an object is placed between the fixed clamp body and the plate jaw, pushing the movable handle body forward moves the plate jaw upwards to the object, engaging the fixed clamp. This device, designed for quick clamping of objects, consists of seven parts: a fixed clamp body, a movable handle body, a jaw, a pivot pin body, a pin cover, a compression spring, and steel balls. The curved teeth within the fixed clamp body are single-sided, allowing for smoother and more convenient opening and closing, thus enabling rapid size adjustment. It has a wide range of applications, suitable for water and electricity installations and industrial and mining enterprises. Compared with similar tools, this improved design eliminates the need for frequent pressing of the pivot pin; the desired size can be moved simply by pulling it open. The opening and clamping range are larger. Traditional straight-tooth quick-clamp wrenches have a small opening and limited clamping range. By designing the fixed clamp body's teeth as curved teeth, the clamping range is increased, making it more widely applicable. Attached Figure Description

[0013] Figure 1 This utility model provides a front view of the open jaws of a quick-release large-opening pliers wrench with a pivot pin.

[0014] Figure 2 This utility model provides a front view of the closed jaws of a quick-release large-opening pliers wrench with a pivot pin.

[0015] Figure 3 This utility model presents a schematic diagram of the internal structure of the fixed clamp body of a quick-release large-opening pliers wrench with a pivot pin.

[0016] Figure 4 This utility model provides a schematic diagram of the internal structure of the movable handle of a quick-release large-opening pliers wrench with a pivot pin.

[0017] Figure 5 This utility model presents a schematic diagram of the internal structure of a quick-release large-opening pliers wrench with a pivot pin.

[0018] Figure 6 This utility model provides a schematic diagram of the internal structure of the pin cover of a quick-release large-opening pliers wrench with a pivot pin.

[0019] Figure 7 A top view of the pin cover of a quick-release large-opening pliers wrench with a pivot pin is provided for this utility model.

[0020] Figure 8 A front view of the pin cover of a quick-release large-opening pliers wrench with a pivot pin is provided for this utility model.

[0021] Figure 9 This utility model provides an internal structural diagram of the pivot pin body of a quick-release large-opening pliers wrench with a pivot pin.

[0022] Figure 10 A longitudinal cross-sectional view of the internal structure of the pivot pin body of a quick-release large-opening pliers wrench with a pivot pin is provided for this utility model.

[0023] Figure 11 A front view of the main body of a quick-release large-opening pliers wrench with a pivot pin is provided for this utility model.

[0024] Illustration: 1. Fixed clamp body; 2. Movable handle body; 3. Plate opening; 4. Rotary pin body; 5. Pin cover; 6. Compression spring; 7. Steel ball; 8. Boss; 9. Groove; 10. Arc-shaped groove; 11. Rotary pin teeth; 12. Movable handle arc; 13. Object. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1, as Figure 1-11 As shown, this utility model provides a quick-release large-opening pliers wrench with a pivot pin, including a fixed pliers body 1, an arc-shaped groove 10 inside the fixed pliers body 1, a pivot pin body 4 slidably connected inside the arc-shaped groove 10, a compression spring 6 fixed inside the pivot pin body 4, a steel ball 7 fixed at one end of the compression spring 6, the steel ball 7 sliding inside the pivot pin body 4, a pin cap 5 fixed at the top of the pivot pin body 4, a movable handle body 2 rotatably connected to the outer side of the pivot pin body 4 on one side of the steel ball 7, the end of the steel ball 7 away from the compression spring 6 abutting against the movable handle body 2, and a pivot pin tooth 11 matching the arc-shaped groove 10 at one end of the pivot pin body 4.

[0028] The overall effect of embodiment 1 is as follows: when the fixed handle inside the fixed clamp body 1 is grasped, the movable handle body 2 is pulled upwards, and the movable handle arc 12 rotates, applying force to the compression spring 6 and steel ball 7, causing the pivot pin 11 to separate from the arc-shaped groove 10 of the fixed clamp body 1. This allows the protrusion 8 of the plate opening 3 to move rapidly along the grooves 9 on both sides of the fixed clamp body 1. When clamping, when the fixed clamp body 1 is grasped, the movable handle body 2 is pulled upwards, and the movable handle arc 12 rotates, applying force to the compression spring 6 and steel ball 7, causing the pivot pin 11 to separate from the arc-shaped groove 10 of the fixed clamp body 1 and move backwards. At the same time, the protrusion 8 of the plate opening 3... It will move backward along the double grooves 9 on the fixed clamp body 1, placing the object 13 between the fixed clamp body 1 and the plate opening 3. This device consists of a fixed clamp body 1, a movable handle body 2, a plate opening 3, a pivot pin body 4, a pin cover 5, a compression spring 6, and a steel ball 7. The arc-shaped groove teeth 10 inside the fixed clamp body 1 are single-sided arc teeth, making opening and closing smoother and more convenient, thus achieving rapid size adjustment. It has a wide range of applications and is suitable for water and electricity installation and industrial and mining enterprises. Compared with similar tools, the improved version does not require frequent pressing of the pivot pin to complete the operation. It can be moved to the desired size by hand pulling it open, and the opening clamping range is larger.

[0029] Example 2, as Figure 1-11 As shown, a groove 9 matching the arc-shaped groove 10 is provided on one side of the fixed clamp body 1. One end of the pivot pin 11 abuts against the arc-shaped groove 10. The angle of the groove 9 is parallel to the angle of the arc-shaped groove 10. A plate opening 3 is provided in the fixed clamp body 1. Both ends of the inner wall of the plate opening 3 are fixed with bosses 8. The bosses 8 slide in the groove 9. One end of the plate opening 3 is rotatably connected to the pivot pin body 4. An object 13 is clamped between the fixed clamp body 1 and the plate opening 3. An movable handle arc 12 matching the pivot pin body 4 and the steel ball 7 is provided in the movable handle body 2.

[0030] The effect achieved by the entire embodiment 2 is that, when clamping, the fixed clamp body 1 is held and the movable handle body 2 is pulled upward to rotate through the movable handle arc 12, which applies force to the compression spring 6 and the steel ball 7, causing the pivot pin tooth 11 to separate from the arc groove tooth 10 of the fixed clamp body 1 and move backward. At the same time, the boss 8 of the plate mouth 3 will move backward along the double groove 9 on the fixed clamp body 1, placing the object 13 between the fixed clamp body 1 and the plate mouth 3. Pushing the movable handle body 2 forward will drive the plate mouth 3 to move upward to the object 13, and cooperate with the fixed clamp body 1 to quickly clamp the object 13.

[0031] Working principle: When using this device, hold the fixed handle inside the fixed clamp body 1 and pull the movable handle body 2 upwards. The movable handle rotates via the arc 12, applying force to the compression spring 6 and steel ball 7, causing the rotating pin 11 to separate from the arc-shaped groove 10 of the fixed clamp body 1. This allows the protrusion 8 of the plate opening 3 to move rapidly along the grooves 9 on both sides of the fixed clamp body 1. During clamping, holding the fixed clamp body 1 and pulling the movable handle body 2 upwards rotates via the arc 12, applying force to the compression spring 6 and steel ball 7, causing the rotating pin 11 to separate from the arc-shaped groove 10 of the fixed clamp body 1 and move backwards. Simultaneously, the protrusion 8 of the plate opening 3 moves backwards along the double grooves 9 on the fixed clamp body 1, gripping the object 13. Placed between the fixed clamp body 1 and the plate opening 3, the movable handle body 2 is pushed forward to move the plate opening 3 upward to the object 13, and quickly clamps the object 13 in cooperation with the fixed clamp body 1. This device consists of a fixed clamp body 1, a movable handle body 2, a plate opening 3, a pivot pin body 4, a pin cover 5, a compression spring 6, and a steel ball 7. The arc-shaped groove 10 inside the fixed clamp body 1 is a single-sided arc tooth, which makes opening and closing smoother and more convenient, thereby achieving rapid size adjustment. It has a wide range of applications and is suitable for water and electricity installation and industrial and mining enterprises. Compared with similar tools, the improved version does not require frequent pressing of the pivot pin to complete the operation. It can be moved to the desired size by hand pulling it open, and the opening clamping range is larger.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A quick-release large-opening pliers wrench with a pivot pin, comprising a fixed pliers body (1), characterized in that: The fixed clamp body (1) has an arc-shaped groove (10) inside. A pivot body (4) is slidably connected inside the arc-shaped groove (10). A compression spring (6) is fixed inside the pivot body (4). A steel ball (7) is fixed at one end of the compression spring (6). The steel ball (7) slides inside the pivot body (4). A pin cap (5) is fixed at the top of the pivot body (4). A movable handle body (2) is rotatably connected to the outside of the pivot body (4) on the side of the steel ball (7). The end of the steel ball (7) away from the compression spring (6) abuts against the movable handle body (2). A pivot tooth (11) matching the arc-shaped groove (10) is opened at one end of the pivot body (4).

2. A quick-release large-opening pliers wrench with a pivot pin according to claim 1, characterized in that: The fixing clamp (1) has a groove (9) that matches the arc-shaped groove (10) on one side, and one end of the pivot pin (11) abuts against the arc-shaped groove (10).

3. A quick-release large-opening pliers wrench with a pivot pin according to claim 2, characterized in that: The angle of the groove (9) is parallel to the angle of the arc-shaped tooth (10).

4. A quick-release large-opening pliers wrench with a pivot pin according to claim 1, characterized in that: The fixing clamp (1) has a plate opening (3) inside, and both ends of the inner wall of the plate opening (3) are fixed with bosses (8), which slide in the groove (9).

5. A quick-release large-opening pliers wrench with a pivot pin according to claim 4, characterized in that: One end of the plate opening (3) is rotatably connected to the main body of the pivot pin (4), and the object (13) is held between the fixing clamp body (1) and the plate opening (3).

6. A quick-release large-opening pliers wrench with a pivot pin according to claim 4, characterized in that: The movable handle body (2) has a movable handle arc (12) that matches the pivot body (4) and the steel ball (7).

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