Tool pliers

Abstract

The utility model is suitable for the technical field of hardware tools, and provides a pair of tool pliers, which comprises a first clamping body, a second clamping body, a padlock and a catching groove, handles are connected to the first clamp body and the second clamp body, and the first clamp body is hinged to the second clamp body; the buckle lock is matched with the buckle groove, the buckle lock is arranged at the position, close to the first clamp body, of the handle of the first clamp body and movably connected with the handle of the first clamp body, and the buckle groove is formed in the second clamp body and located at the arc position with the hinge point of the first clamp body and the second clamp body as the circle center; and when the tool pliers are closed, the buckle lock is buckled with the buckle groove. Due to the fact that the padlock is arranged at the position, close to the first clamp body, of the handle of the first clamp body, and the catching groove is formed in the arc position, with the hinge point as the circle center, of the second clamp body, when the tool pliers are closed, a user only needs to operate the padlock with the thumb, the padlock and the catching groove can be buckled, and convenience of single-hand operation is particularly considered in design.

Description

Technical Field

[0001] This utility model belongs to the field of hardware tool technology, and in particular relates to a pair of pliers. Background Technology

[0002] Pliers are widely used in modern society, enabling cutting, twisting, and clamping operations; examples include needle-nose pliers, flat-nose pliers, and fish pliers. Modern plier design prioritizes not only efficient clamping capabilities but also ease of use and safety. However, existing designs often lack optimization for hand gripping and one-handed operation.

[0003] Many existing pliers designs lack a locking mechanism, which can lead to accidental opening during transport and storage, creating a safety hazard. Even those designs that incorporate some form of locking mechanism often suffer from poor design, making operation cumbersome and difficult to perform with one hand. Utility Model Content

[0004] This utility model provides a pair of pliers, which aims to solve the problem of complicated locking operations in existing pliers.

[0005] This utility model is implemented as follows: a pair of pliers, comprising: a first clamping body, a second clamping body, a latch, and a latching groove;

[0006] Both the first clamp and the second clamp are connected to handles, and the first clamp and the second clamp are hinged together.

[0007] The buckle and the buckle groove are adapted to each other. The buckle is set on the handle of the first clamp body near the first clamp body and is movably connected to the handle of the first clamp body. The buckle groove is set on the second clamp body and is located at the arc with the hinge point of the first clamp body and the second clamp body as the center.

[0008] When the pliers are closed, the latch engages with the latch groove.

[0009] Optionally, the second clamping body is provided with an arc portion of an arc centered at the hinge point of the first clamping body and the second clamping body, and the fastening groove is placed on the arc portion.

[0010] Optionally, the latch includes a base, a buckle, and an operating part. The operating part and the buckle are respectively connected to the base. A receiving groove is provided on the handle of the first clamp. The base is hinged to the handle of the first clamp in the receiving groove. The operating part protrudes from the receiving groove.

[0011] Optionally, two grooves are provided circumferentially along the outer edge of the base;

[0012] The latch also includes a spring and a ball bearing. The spring is in a contracted state, with one end connected to the bottom of the receiving groove and the other end abutting against any of the grooves via the ball bearing.

[0013] Optionally, the first clamping body is provided with a first through hole, and the second clamping body is provided with a second through hole, and the first clamping body and the second clamping body are hinged through the first through hole and the second through hole.

[0014] Optionally, it also includes a retaining ring, which includes a flanged portion and a tightening portion. The tightening portion is provided with an external thread, and a positioning ring extends along the edge of the first through hole. The outer diameter of the positioning ring is adapted to the diameter of the second through hole, and the inner wall of the positioning ring is provided with an internal thread adapted to the external thread.

[0015] Optionally, a washer is provided between the flange and the second clamping body.

[0016] Optionally, it also includes a retaining ring, which includes a flanged portion and a tightening portion. The tightening portion is provided with an external thread, and a positioning ring extends along the edge of the second through hole. The outer diameter of the positioning ring is adapted to the diameter of the first through hole, and the inner wall of the positioning ring is provided with an internal thread adapted to the external thread.

[0017] Optionally, a washer is provided between the flanged portion and the first clamping body.

[0018] Optionally, the first clamp and the second clamp are provided with relief holes, and / or the handle connecting the first clamp and the second clamp is provided with relief holes.

[0019] The beneficial effects achieved by this utility model are as follows: the latch is located on the handle of the first clamping body near the first clamping body, and the latch groove is located on an arc position of the second clamping body with the hinge point as the center. When the pliers are closed, the user only needs to operate the latch with his thumb to make the latch engage with the latch groove. The design takes into account the convenience of one-handed operation and combines ergonomic principles to improve the user's operating experience. Whether cutting or locking, it can be easily completed with one hand, achieving higher operational convenience and safety. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the tool pliers provided by this utility model;

[0021] Figure 2 This is a partial cross-sectional view of the tool pliers provided by this utility model when opened;

[0022] Figure 3 This is a partial cross-sectional view of the tool pliers provided by this utility model when closed;

[0023] Figure 4 This is a schematic diagram of the disassembled structure of the tool pliers provided by this utility model;

[0024] Figure 5 This is an enlarged view of point A.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Pliers; 101. First clamping body; 1011. First through hole; 102. Second clamping body; 1021. Arc part; 1022. Second through hole; 103. Handle; 104. Lock; 1041. Base; 1042. Buckle part; 1043. Operating part; 1044. Ball bearing; 1045. Spring; 1046. Groove; 105. Buckle groove; 106. Receiving groove; 107. Positioning ring; 108. Fixing ring; 1081. Flanged part; 1082. Tightening part; 109. Washer. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Furthermore, it should be understood that the specific embodiments described herein are merely for explaining this utility model and are not intended to limit this utility model.

[0028] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0033] The latch of this utility model is located on the handle of the first clamping body near the first clamping body, and the latch groove is located on an arc position of the second clamping body with the hinge point as the center. When the pliers are closed, the user only needs to operate the latch with his thumb to make the latch engage with the latch groove. The design takes into account the convenience of one-handed operation and combines ergonomic principles to improve the user's operating experience. Whether cutting or locking, it can be easily completed with one hand, achieving higher operating convenience and safety.

[0034] Example 1

[0035] like Figures 1 to 3As shown, this embodiment provides a tool pliers 100, characterized in that it includes: a first clamping body 101, a second clamping body 102, a latch 104, and a latching groove 105;

[0036] A handle 103 is connected to both the first clamp 101 and the second clamp 102, and the first clamp 101 and the second clamp 102 are hinged together.

[0037] The latch 104 and the latch groove 105 are adapted to each other. The latch 104 is located on the handle 103 of the first clamp 101 near the first clamp 101 and is movably connected to the first clamp 101. The latch groove 105 is located on the second clamp 102 and is located at the arc with the hinge point of the first clamp 101 and the second clamp 102 as the center.

[0038] When the pliers 100 is closed, the latch 104 engages with the latch groove 105.

[0039] The first clamping body 101 and the second clamping body 102 are the main working parts of the pliers 100. The first clamping body 101 and the second clamping body 102 are connected by a hinge point, allowing them to rotate relative to each other around the hinge point. A handle 103 is connected to both the first clamping body 101 and the second clamping body 102. The handle 103 is designed for easy gripping and operation by the user, allowing the user to apply force to close or open the first clamping body 101 and the second clamping body 102, thereby achieving the function of cutting or clamping objects.

[0040] The latch 104 is movably connected to the handle 103 of the first clamping body 101, meaning that the latch 104 can move relatively freely on the handle 103 of the first clamping body 101. The latch 104 is positioned on the handle 103 of the first clamping body 101 near the first clamping body 101, allowing the user to operate the latch 104 with their thumb while gripping the handle 103. The latch groove 105 is provided on the second clamping body 102, and the latch groove 105 is arranged at an arc centered on the hinge point. That is, when the second clamping body 102 rotates around the hinge point relative to the first clamping body 101, the latch groove 105 rotates with the second clamping body 102 around the hinge point. When the pliers 100 is closed, that is, when the first clamping body 101 and the second clamping body 102 are closed, the latch groove 105 is aligned with the latch 104. The latch 104 and the latch groove 105 are compatible. When the pliers 100 is closed, the latch 104 and the latch groove 105 are engaged to keep the pliers 100 in the closed state and prevent the pliers 100 from opening accidentally.

[0041] In this embodiment, the latch 104 is located on the handle 103 of the first clamping body 101 near the first clamping body 101, and the latch groove 105 is located on an arc position of the second clamping body 102 with the hinge point as the center. When the pliers 100 is closed, the user only needs to operate the latch 104 with his / her thumb to make the latch 104 engage with the latch groove 105. The design takes into account the convenience of one-handed operation and combines ergonomic principles to improve the user's operating experience. Whether cutting or locking, it can be easily completed with one hand, achieving higher operation convenience and safety.

[0042] Example 2

[0043] like Figure 3 As shown, based on Embodiment 1, the second clamp 102 is provided with an arc portion 1021 of an arc with the hinge point of the first clamp 101 and the second clamp 102 as the center, and the fastening groove 105 is placed on the arc portion.

[0044] The second clamp 102 is provided with an arc 1021, which is an arc with the hinge point of the first clamp 101 and the second clamp 102 as the center. When the tool pliers 100 is in a non-closed state, the arc 1021 and the latch 104 move relative to each other, and the arc 1021 can make smooth contact with the latch 104, so as to avoid the latch 104 from engaging with the non-latch groove 105 position on the second clamp 102, which would cause the tool pliers 100 to jam when in use.

[0045] Example 3

[0046] like Figure 2 As shown, based on Embodiment 1, the latch 104 includes a base 1041, a latch 1042, and an operating part 1043. The operating part 1043 and the latch 1042 are respectively connected to the base 1041. A receiving groove 106 is provided on the handle 103 of the first clamping body 101. The base 1041 is hinged to the handle 103 of the first clamping body 101 in the receiving groove 106. The operating part 1043 protrudes from the receiving groove 106.

[0047] The latch 104 consists of three parts: a base 1041, a latch 1042, and an operating part 1043. Through their coordinated operation, they enable the locking and unlocking of the pliers 100. The base 1041 is the core part of the latch 104, providing the structural foundation for support and connection to other components. The base 1041 is hinged to the receiving groove 106 of the handle 103 of the first clamping body 101, allowing it to rotate within a certain range. The latch 1042 is the part that actually engages with the latch groove 105. When the pliers 100 is closed, the latch 1042 engages with the latch groove 105, achieving locking. The latch 1042 is connected to the base 1041, transmitting force and adjusting its position through the base 1041. The operating part 1043 is the part directly operated by the user, used to control the movement of the latch 1042. The operating part 1043 is connected to the base 1041 and protrudes from the receiving groove 106 of the handle 103 of the first clamp 101, making it convenient for the user to operate with one hand. The user presses or pulls the operating part 1043 with his / her thumb, and the operating part 1043 drives the base 1041 and the buckle 1042 to rotate, thereby realizing the engagement or disengagement of the buckle 1042 from the buckle groove 105.

[0048] A receiving groove 106 is provided on the handle 103 of the first clamp 101 for embedding and fixing the base 1041 of the latch 104, providing a space for fixing and rotating the base 1041 of the latch 104, ensuring the stability and functionality of the latch 104. The receiving groove 106 provides a hinge point for the base 1041, allowing the base 1041 to rotate or swing within the groove, ensuring that the buckle 1042 can accurately engage or disengage from the buckle groove 105.

[0049] Example 4

[0050] like Figure 2 As shown, based on Embodiment 3, two grooves 1046 are provided along the outer circumferential direction of the base 1041;

[0051] The latch 104 also includes a spring 1045 and a ball 1044. The spring 1044 is in a retracted state, with one end connected to the bottom of the receiving groove 106 and the other end abutting against any groove 1046 via the ball 1044.

[0052] One end of the spring 1045 is fixed to the bottom of the receiving groove. The spring 1045 is in a compressed state. A ball 1044 is placed on the other end of the spring 1045. The elastic force of the spring 1045 is applied to the ball 1044, allowing it to make tight contact with the groove 1046. Two grooves 1046 are arranged circumferentially along the outer edge of the base 1041. When the latch 104 rotates, the ball 1044, pushed by the elastic force of the spring 1045, is positioned within either groove 1046.

[0053] When the pliers are in the closed position, the ball bearing 1044 contacts the groove 1046 on the base 1041 near the latch 1042 under the pressure of the spring 1045. At this time, the latch 1042 is engaged with the latch groove 105, thus locking the latch 104 in its initial position. By manually rotating the latch 104, the user can cause the ball bearing 1044 to disengage from the groove 1046 near the latch 1042 and roll into the groove 1046 near the operating part 1043. At this time, the latch 1042 disengages from the latch groove 105 and does not contact the second clamp 102, thus locking the latch 104 in the new position.

[0054] Spring 1045 and ball 1044 provide continuous pressure to ensure that latch 104 remains securely locked during any operation. The design of ball 1044 and groove 1046 allows the pliers 100 to be securely locked in two predetermined positions, preventing contact between latch 1042 and second clamping body 102 during clamping and thus avoiding wear on latch 1042.

[0055] Example 5

[0056] like Figure 4 As shown, based on Embodiment 1, a first through hole 1011 is provided on the first clamping body 101, and a second through hole 1022 is provided on the second clamping body 102. The first clamping body 101 and the second clamping body 102 are hinged together through the first through hole 1011 and the second through hole 1022.

[0057] The first through hole 1011 and the second through hole 1022 are concentric. The first clamping body 101 and the second clamping body 102 are hinged through the first through hole 1011 and the second through hole 1022, specifically through a hinge shaft or other hinge structure passing through the first through hole 1011 and the second through hole 1022. This design ensures smooth operation of the tool pliers 100 and reduces friction and resistance.

[0058] Example 6

[0059] Based on Embodiment 5, a retaining ring 108 is also included. The retaining ring 108 includes a flanged portion 1081 and a tightening portion 1082. An external thread is provided on the tightening portion 1082. A positioning ring 107 extends along the edge of the first through hole 1011. The outer diameter of the positioning ring 107 is adapted to the diameter of the second through hole 1022. An internal thread adapted to the external thread is provided on the inner wall of the positioning ring 107.

[0060] The positioning ring 107 extends along the edge of the first through hole 1011, and its outer diameter is adapted to the diameter of the second through hole 1022, allowing it to be inserted into the second through hole 1022. An internal thread is provided on the inner wall to match the external thread of the fixing ring 108. The tightening part 1082 of the positioning ring 107 is screwed into the positioning ring 107. The fixing ring 108 works in conjunction with the positioning ring 107, functioning similarly to a hinge shaft. The flange of the fixing ring 108 abuts against the end face of the second through hole 1022, providing a limit for the second clamp 102.

[0061] The retaining ring 108 and the positioning ring 107 are threaded together, facilitating disassembly without the need for complex tools or operations. Simply tightening the retaining ring 108 completes the hinged connection of the clamp body. The threaded connection provides excellent self-locking properties, preventing loosening during use and effectively improving the service life and reliability of the pliers 100. Furthermore, the hollow portions of the retaining ring 108 and the positioning ring 107 reduce the overall weight of the pliers 100, making them more portable.

[0062] In one embodiment, a washer 109 is provided between the flange 1081 and the second clamp 102. The washer 109 serves to provide a buffer layer between the flange 1081 and the second clamp 102, reducing wear and friction from direct metal-to-metal contact while improving the stability and durability of the hinged connection. The washer 109 is typically made of abrasion-resistant materials such as stainless steel, brass, or engineering plastics to provide good cushioning and durability.

[0063] Example 7

[0064] Based on Embodiment 5, a retaining ring 108 is also included. The retaining ring 108 includes a flanged portion 1081 and a tightening portion 1082. An external thread is provided on the tightening portion 1082. A positioning ring 107 extends along the edge of the second through hole 1022. The outer diameter of the positioning ring 107 is adapted to the diameter of the first through hole 1011. An internal thread adapted to the external thread is provided on the inner wall of the positioning ring 107.

[0065] The positioning ring 107 extends along the edge of the second through hole 1022, and its outer diameter is adapted to the diameter of the first through hole 1011, allowing it to be inserted into the first through hole 1011. An internal thread is provided on the inner wall to match the external thread of the fixing ring 108. The tightening part 1082 of the positioning ring 107 is screwed into the positioning ring 107. The fixing ring 108 works in conjunction with the positioning ring 107, functioning similarly to a hinge shaft. The flange of the fixing ring 108 abuts against the end face of the first through hole 1011, providing a limit for the first clamp 101.

[0066] The retaining ring 108 and the positioning ring 107 are threaded together, facilitating disassembly without the need for complex tools or operations. Simply tightening the retaining ring 108 completes the hinged connection of the clamp body. The threaded connection provides excellent self-locking properties, preventing loosening during use and effectively improving the service life and reliability of the pliers 100. Furthermore, the hollow portions of the retaining ring 108 and the positioning ring 107 reduce the overall weight of the pliers 100, making them more portable.

[0067] In one embodiment, a washer 109 is provided between the flange 1081 and the first clamping body 101. The washer 109 serves to provide a buffer layer between the flange 1081 and the first clamping body 101, reducing wear and friction from direct metal-to-metal contact while improving the stability and durability of the hinged connection. The washer 109 is typically made of abrasion-resistant materials such as stainless steel, brass, or engineering plastics to provide good cushioning and durability.

[0068] Example 8

[0069] Based on Embodiment 1, a relief hole is provided on the first clamp 101 and the second clamp 102, and / or a relief hole is provided on the handle 103 connected to the first clamp 101 and the second clamp 102.

[0070] By providing weight-reducing holes on the first clamp 101, the second clamp 102, and the handle 103, the overall weight can be reduced, increasing user comfort during operation without affecting the strength and stability of the structure. The weight-reducing holes can be located in non-critical stress areas of the first clamp 101 and the second clamp 102, and / or at appropriate positions on the handle 103.

[0071] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 pair of pliers, characterized in that, include: First clamp, second clamp, latch, and latch groove; Both the first clamp and the second clamp are connected to handles, and the first clamp and the second clamp are hinged together. The buckle and the buckle groove are adapted to each other. The buckle is set on the handle of the first clamp body near the first clamp body and is movably connected to the handle of the first clamp body. The buckle groove is set on the second clamp body and is located at the arc with the hinge point of the first clamp body and the second clamp body as the center. When the pliers are closed, the latch engages with the latch groove.

2. The pliers as described in claim 1, characterized in that, The second clamping body is provided with an arc portion of a circle centered at the hinge point of the first clamping body and the second clamping body, and the fastening groove is placed on the arc portion.

3. The pliers as described in claim 1, characterized in that, The latch includes a base, a buckle, and an operating part. The operating part and the buckle are respectively connected to the base. A receiving groove is provided on the handle of the first clamp. The base is hinged to the handle of the first clamp in the receiving groove. The operating part protrudes from the receiving groove.

4. The pliers as described in claim 3, characterized in that, Two grooves are provided circumferentially along the outer edge of the base; The latch also includes a spring and a ball bearing. The spring is in a contracted state, with one end connected to the bottom of the receiving groove and the other end abutting against any of the grooves via the ball bearing.

5. The pliers as described in claim 1, characterized in that, The first clamping body is provided with a first through hole, and the second clamping body is provided with a second through hole. The first clamping body and the second clamping body are hinged together through the first through hole and the second through hole.

6. The pliers as described in claim 5, characterized in that, It also includes a retaining ring, which includes a flanged portion and a tightening portion. The tightening portion is provided with an external thread, and a positioning ring extends along the edge of the first through hole. The outer diameter of the positioning ring is adapted to the diameter of the second through hole, and the inner wall of the positioning ring is provided with an internal thread adapted to the external thread.

7. The pliers as described in claim 6, characterized in that, A washer is provided between the flange and the second clamp.

8. The pliers as described in claim 5, characterized in that, It also includes a retaining ring, which includes a flanged portion and a tightening portion. The tightening portion is provided with an external thread, and a positioning ring extends along the edge of the second through hole. The outer diameter of the positioning ring is adapted to the diameter of the first through hole, and the inner wall of the positioning ring is provided with an internal thread adapted to the external thread.

9. The pliers as described in claim 8, characterized in that, A washer is provided between the flanged part and the first clamping body.

10. The pliers as described in claim 1, characterized in that, The first clamp and the second clamp are provided with relief holes, and / or the handle connecting the first clamp and the second clamp is provided with relief holes.

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