Tool pliers

Abstract

The utility model relates to the technical field of hardware tools, in particular to a pair of tool pliers, which comprises a plier head, a plier handle, a plier handle locking mechanism and a plier head limiting structure, the plier head and the plier handle are mutually hinged, the plier handle locking mechanism comprises an elastic component, the elastic component is arranged on the plier handle and is provided with a first limiting part, and the plier head is provided with a second limiting part. The first limiting part can be in contact with the second limiting part, and the tong head limiting structure is arranged at the tail end, close to the tong head, of the tong handle; when the forceps head and the forceps handles are in an opened or closed state, the first limiting part and the second limiting part are propped against or clamped with each other; and when the forceps head and the forceps handles are opened or closed, the first limiting part is separated from the second limiting part. According to the utility model, the locking structure is arranged, so that the forcep handles are relatively large in resistance when being opened or closed and relatively small in resistance when being opened, the comfort degree of opening and closing the forcep handles can be improved, and the user experience is improved.

Description

Technical Field

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

[0002] Pliers are common hand tools used in daily life. They can be divided into various types according to their functions and structures, and are suitable for different scenarios. Most multi-tool pliers currently on the market use metal bars or springs to lock and limit the opening and closing of the pliers heads. This method affects the comfort of opening and closing the pliers handles. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a pair of pliers. By setting a locking structure, the pliers handle only experiences greater resistance when opening or closing, and less resistance during the opening process, which can improve the comfort of opening and closing the pliers handle and enhance the user experience.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A pair of pliers is provided, including a plier head and a plier handle hinged together; it also includes a plier handle locking mechanism and a plier head limiting structure. The plier handle locking mechanism includes an elastic member mounted on the plier handle, the elastic member having a first limiting portion, and the plier head having a second limiting portion. The first limiting portion can abut or engage with the second limiting portion. The plier head limiting structure is mounted on the plier handle near the tail end of the plier head. When the plier head and the plier handle are in an open state, the first limiting portion abuts or engages with the second limiting portion, and the plier head limiting structure abuts with the tail end of the plier head. When the plier head and the plier handle are in a closed state, the first limiting portion also abuts or engages with the second limiting portion. When the plier head and the plier handle are in the process of opening or closing, the first limiting portion disengages from the second limiting portion.

[0006] The pliers handle locking mechanism of this utility model is used to lock the position of the pliers head and handle when the pliers head is open in use or closed in storage, so as to prevent the handle from rotating arbitrarily, thereby affecting the use or storage of the pliers. When the pliers head is open in use, the pliers head limiting structure is used to rigidly limit the pliers head and bear the clamping force of the pliers head, thereby preventing the pliers head from swinging during the force process, and thus preventing the pliers handle locking mechanism from being subjected to excessive force and thus being damaged. This design enhances the strength of the pliers while providing greater resistance when opening or closing the handle, with less resistance during the opening process. During opening, the first and second limiting parts disengage, but the first limiting part remains in contact with the pliers head, preventing the head or handle from wobbling during opening. However, when the first and second limiting parts are in contact or locked, the handle experiences greater force. When the first limiting part is in contact with the head but not with the second limiting part, the force on the handle is less, thus improving the comfort of opening and closing the handle and enhancing the user experience.

[0007] Furthermore, the first limiting part is a protrusion, and the second limiting part is a groove; or the first limiting part is a groove, and the second limiting part is a protrusion; or the first limiting part is a protrusion, and the second limiting part is a plane. The first and second limiting parts are used to lock the positions of the pliers head and handle, preventing the handle from rotating arbitrarily and affecting the use or storage of the pliers. The pliers head limiting structure rigidly limits the front end of the handle and the tail end of the pliers head; while the handle is provided with an elastic component, which simultaneously clamps the inner and outer sides of the pliers head, or simply limits it from the inner or outer side. The first and second limiting parts abut or engage: when the first limiting part is a protrusion and the second limiting part is a groove; or when the first limiting part is a groove and the second limiting part is a protrusion; when the handle is open or closed, the first limiting part engages with the second limiting part of the pliers head for locking. When the first limiting part is a protrusion and the second limiting part is a plane, the clamp handle is in the open or closed state, and the first limiting part and the second limiting part abut and limit each other.

[0008] Furthermore, there are at least two second limiting parts, which are arranged facing each other with the hinge point between the jaw and the handle as the center. When the jaw and the handle are in the open or closed state, the first limiting part abuts or engages with the second limiting part at different positions. By setting the second limiting parts on the inner and outer sides of the jaw facing each other, or by setting two second limiting parts on the adjacent sides of the jaw and the inner and outer sides, but on both sides of the hinge point between the jaw and the handle, the first limiting part can abut or engage with the second limiting part at different positions when the handle is open or closed, thereby limiting the handle.

[0009] Furthermore, the elastic component and the jaw limiting structure are respectively located on opposite or adjacent sides of the jaw handle. The opposite sides can be opposing inner and outer sides, while the adjacent sides are one on the inner or outer side and the other on the side adjacent to the inner or outer side. The elastic component limits the rotation of the jaw handle, that is, it limits the rotation of the jaw head. The jaw limiting structure bears the clamping force when the jaw head performs its clamping or cutting function. Because their functions are different and their force application points are different, placing them in different positions is more conducive to achieving their respective functions.

[0010] Furthermore, the jaw limiting structure is located at the front end of the jaw handle and relative to the tail end of the jaw. This arrangement allows the jaw limiting structure to withstand the clamping force; while the elastic component is relatively flexible in its placement, and can be located on the other side of the jaw handle to limit the rotation of the jaw or jaw; it also prevents the elastic component from being damaged due to excessive force.

[0011] Furthermore, the elastic component is integrally formed with the pliers handle and cantilevered, with a clearance opening on the pliers handle next to the elastic component; or the elastic component and the pliers handle are detachably connected. The integrally formed elastic component and pliers handle facilitate processing and save costs; the detachably connected elastic component and pliers handle facilitate replacement of the elastic component and allow the elastic component and pliers handle to be made of different materials.

[0012] Furthermore, when the elastic component is integrally formed with the pliers handle, the elastic component is an elastic rod; when the elastic component and the pliers handle are separate, the elastic component includes a mounting member and an elastic rod, the elastic rod is integrally formed with the mounting member, the mounting member has a clearance gap on the side of the elastic rod, the elastic rod is cantilevered on the mounting member, and the mounting member is fixedly connected to the pliers handle. By providing a first limiting part on the elastic rod, the pliers handle can be limited in the open and closed states to achieve a pliers handle locking function; when the elastic component is an elastic rod, it facilitates the integral forming of the elastic component and the pliers handle; another embodiment is to install the elastic rod through the mounting member, and simultaneously connect the mounting member to the pliers handle to achieve the connection between the elastic rod and the pliers handle, thereby making it easier for the elastic rod to limit the pliers handle.

[0013] Furthermore, the clamp head limiting structure is a stop provided on the clamp handle near the clamp head end. Preferably, a limiting step is provided on the inner side and adjacent inner side of the clamp head tail end. Through the abutting cooperation between the stop and the limiting step, the clamp head is stabilized in the open use state, and the stop can withstand the clamping force of the clamp head.

[0014] Furthermore, the pliers include a first pliers head and a second pliers head hinged together, and the pliers handle includes a first pliers handle hinged to the tail end of the first pliers head and a second pliers handle hinged to the tail end of the second pliers head. The first pliers handle drives the first pliers head, and the second pliers handle drives the second pliers head, so that actions are applied to the first and second pliers handles to achieve clamping, pressing, or shearing between the first and second pliers heads. Simultaneously, the first pliers handle can rotate relative to the first pliers head, and the second pliers handle can rotate relative to the second pliers head.

[0015] Furthermore, the pliers handle has a space for accommodating the pliers head, which can be rotated, folded, and stored in the pliers handle. When not in use, the pliers head can be stored in the pliers handle by rotating it relative to the handle, thus saving storage space.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The pliers head limiting structure rigidly limits the front end of the pliers handle to the tail end of the pliers head, satisfying the function of clamping or cutting during the use of the pliers. The clamping force of the pliers head during use acts on the pliers head limiting structure, which is integrally formed with the pliers handle and can withstand large clamping forces without being easily damaged. The first limiting part of the pliers handle locking mechanism, together with the second limiting part of the pliers head, limits the rotation of the pliers head and handle, ensuring that there is significant resistance when switching the pliers head and handle from the closed state to the open state, or from the open state to the closed state. This resistance must be overcome manually before unlocking, thus preventing accidental operation. During the opening of the pliers handle relative to the pliers head or the opening of the pliers head relative to the pliers handle, the resistance on the pliers handle is small, thereby improving the comfort of opening and closing the pliers handle and enhancing the user experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the tool pliers of this utility model;

[0019] Figure 2 This is an exploded structural diagram of Embodiment 1 of the present invention;

[0020] Figure 3 for Figure 1 A structural diagram with part of the handle removed;

[0021] Figure 4 for Figure 1 A sectional view;

[0022] Figure 5 for Figure 1 Sectional view in the closed state;

[0023] Figure 6This is a schematic diagram of the elastic component structure in Embodiment 2 of this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of a tool pliers according to Embodiment 3 of the present invention in the open pliers head state;

[0025] Figure 8 This is an exploded structural diagram of Embodiment 3 of the present invention;

[0026] Figure 9 for Figure 7 A structural diagram with part of the handle removed;

[0027] Figure 10 This is a cross-sectional view of a third embodiment of the tool pliers of the present invention in the pliers head closed state;

[0028] Figure 11 This is a cross-sectional view of embodiment 3 of the tool pliers of this utility model in the pliers head open state;

[0029] Figure 12 This is a schematic diagram of the elastic component structure in Embodiment 3 of this utility model.

[0030] The markings in the diagram are explained below:

[0031] 1. Pliers head; 11. First pliers head; 12. Second pliers head; 2. Pliers handle; 21. First pliers handle; 22. Second pliers handle; 3. Elastic component; 31. Elastic rod; 32. Mounting component; 4. Pliers head limiting structure; 51. First limiting part; 52. Second limiting part. Detailed Implementation

[0032] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0033] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] Example 1

[0035] like Figures 1 to 5 The illustration shows an embodiment 1 of a pair of pliers according to the present invention, including a plier head 1 and a plier handle 2 that are hinged together; it also includes a plier handle locking mechanism and a plier head limiting structure 4. The plier handle locking mechanism includes an elastic component 3, which is installed on the plier handle 2 and has a first limiting part 51. The plier head 1 has a second limiting part 52, and the first limiting part 51 can abut or engage with the second limiting part 52. The plier head limiting structure 4 is installed on the plier handle 2 near the tail end of the plier head 1. When the plier head 1 and the plier handle 2 are in the open state, the first limiting part 51 abuts or engages with the second limiting part 52, and the plier head limiting structure 4 abuts with the tail end of the plier head 1. When the plier head 1 and the plier handle 2 are in the closed state, the first limiting part 51 also abuts or engages with the second limiting part 52. When the plier head 1 and the plier handle 2 are in the process of opening or closing, the first limiting part 51 and the second limiting part 52 disengage. The pliers handle 2 has a space for accommodating the pliers head 1, which can be rotated, folded, and stored in the pliers handle 2.

[0036] By abutting against the first limiting part 51 and the second limiting part 52, the pliers head 1 and the pliers handle 2 can be switched from the closed state to the open state, or from the open state to the closed state. There is significant resistance, requiring manual overcoming of the resistance to unlock, thus preventing accidental operation. During the opening of the pliers handle 2 relative to the pliers head 1, or the opening of the pliers head 1 relative to the pliers handle 2, the pliers handle 2 remains in contact with the pliers head 1, but the first limiting part 51 does not contact the second limiting part 52. Therefore, the pliers handle 2 experiences less resistance, improving the comfort of opening and closing the pliers handle 2 and enhancing the user experience. The pliers head limiting structure 4 only rigidly abuts and limits the pliers head 1 when it is fully open and in use, satisfying the function of clamping or cutting during the use of the pliers. The clamping force of the pliers head 1 during use acts on the pliers head limiting structure 4. The pliers head limiting structure 4 is integrally formed with the pliers handle 2, can withstand large clamping forces, and is not easily damaged.

[0037] In this embodiment, the first limiting part 51 is a protrusion, and the second limiting part 52 is a plane. There are two second limiting parts 52, which are located on different sides of the pliers head 1. Specifically, the two second limiting parts 52 are the inner plane and the outer plane of the pliers head 1, respectively. When the pliers head 1 and the pliers handle 2 are in the open or closed state, the first limiting part 51 abuts against the inner plane and the outer plane of the pliers head 1, respectively.

[0038] Specifically, the pliers 1 includes a first pliers 11 and a second pliers 12 hinged together. The pliers handle 2 includes a first pliers handle 21 hinged to the tail end of the first pliers 11 and a second pliers handle 22 hinged to the tail end of the second pliers 12. In this embodiment, the pliers handle locking mechanism includes two elastic components 3, respectively disposed on the first pliers handle 21 and the second pliers handle 22, to respectively limit the rotation of the first pliers 11 and the first pliers handle 21, and the second pliers 12 and the second pliers handle 22. There are also two pliers head limiting structures 4, one disposed at the front end of the first pliers handle 21 and integrally formed with it, to limit the first pliers 11 after it is opened and to withstand the clamping force from the first pliers 11; the other pliers head limiting structure 4 is disposed at the front end of the second pliers handle 22 and integrally formed with it, to limit the second pliers 12 after it is opened and to withstand the clamping force from the second pliers 12.

[0039] As an improvement to this embodiment, the elastic component 3 and the jaw limiting structure 4 are located on opposite sides of the jaw handle 2. The jaw handle locking mechanism and the jaw limiting structure 4 have different functions: the jaw handle locking mechanism is used to restrict the free rotation of the jaw head 1 and the jaw handle 2, while the jaw limiting structure 4 is used to support the jaw head 1 and bear its clamping force after the jaw head 1 is opened; therefore, the jaw handle locking mechanism and the jaw limiting structure 4 are located in different positions. When the jaw handle 2 is open or closed, the jaw handle locking mechanism achieves its function by abutting against the second limiting part 52 located on the side of the jaw head 1 through the elastic component 3. During the opening or closing process of the jaw handle 2, the jaw handle 2 abuts against the jaw head arc surface between the two second limiting parts 52 to obtain less resistance and prevent the jaw handle 2 from shaking freely during the opening or closing process; after opening, the jaw limiting structure 4 achieves its function by abutting against the tail end of the jaw head 1. Both the elastic component 3 and the jaw limiting structure 4 are located on the jaw handle 2.

[0040] Specifically, the pliers head limiting structure 4 is located at the front end of the pliers handle 2 and relative to the tail end of the pliers head 1. This arrangement facilitates the pliers head limiting structure 4 in bearing the clamping force; the pliers head limiting structure 4 is a stop located on the pliers handle 2 near the end of the pliers head 1. Preferably, a limiting step is provided on the inner and adjacent sides of the tail end of the pliers head 1. Through the abutment and cooperation between the stop and the limiting step, the pliers head 1 is stabilized in the open use state, and the stop can withstand the clamping force of the pliers head 1.

[0041] The arrangement of the elastic component 3 is quite flexible: the handle 2 can rotate relative to the head 1, so when the head 1 is in the closed state, the elastic component 3 is located on the outside of the head 1, and when the head 1 is in the open state, the elastic component 3 is located on the inside of the head 1; the elastic component 3 can also be arranged on both sides of the handle 2, so that the elastic component 3 abuts against the second limiting part 52 on the inside and outside of the head 1, whether the head 1 is in the open or closed state; within the knowledge of those skilled in the art, the elastic component 3 can also be arranged on other sides of the handle 2.

[0042] As an improvement to this embodiment, the elastic component 3 is integrally formed with the clamp handle 2 and cantilevered, with a clearance gap provided on the clamp handle 2 beside the elastic component 3; the elastic component 3 is an elastic rod 31. By providing a first limiting part 51 on the elastic rod 31, the clamp handle 2 can be limited in the open and closed states to achieve the locking function of the clamp handle 2; the integrally formed elastic rod 31 and clamp handle 2 make processing simpler, save processing steps, and reduce processing costs.

[0043] Example 2

[0044] like Figure 6 The illustration shows a second embodiment of the tool pliers of this utility model. This embodiment is similar to embodiment 1, except that the elastic component 3 and the pliers handle 2 are separately configured. The elastic component 3 includes a mounting part 32 and an elastic rod 31. The elastic rod 31 and the mounting part 32 are integrally formed. The mounting part 32 has a clearance gap on the side of the elastic rod 31. The elastic rod 31 is cantilevered on the mounting part 32. The mounting part 32 is fixedly connected to the pliers handle 2. The fixed connection can be a detachable connection using a snap-fit ​​method, or it can be fixed by riveting, welding, or other methods. The elastic rod 31 is installed through the mounting part 32, and at the same time, the mounting part 32 is connected to the pliers handle 2 to realize the connection between the elastic rod 31 and the pliers handle 2, thereby making it easier for the elastic rod 31 to limit the movement of the pliers handle 2.

[0045] Example 3

[0046] like Figures 7 to 12 The image shows Embodiment 3 of a pair of pliers according to this utility model. This embodiment is similar to Embodiment 2, except that the first limiting part 51 is a protrusion and the second limiting part 52 is a groove; or the first limiting part 51 is a groove and the second limiting part 52 is a protrusion. The plier head limiting structure 4 rigidly limits the front end of the plier handle 2 and the tail end of the plier head 1; while the elastic component 3 is provided on both the inner and outer sides of the plier handle 2, or on one side, or as shown in the image. Figure 9As shown, the elastic component 3 is located on the adjacent side of the pliers handle 2, which is located on the pliers head limiting structure 4. The elastic component 3 clamps the inner and outer sides of the pliers head 1 or limits it from one side. In the open or closed state, the first limiting part 51 engages with the second limiting part 52 at different positions on the pliers head 1, so that when the pliers handle 2 is open or closed, the first limiting part 51 of the elastic component 3 on the pliers handle 2 falls into the second limiting part 52 of the pliers head 1 for locking.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A pair of pliers, comprising a plier head (1) and a plier handle (2) hinged together; characterized in that, It also includes a handle locking mechanism and a head limiting structure (4). The handle locking mechanism includes an elastic component (3), which is installed on the handle (2). The elastic component (3) has a first limiting part (51), and the head (1) has a second limiting part (52). The first limiting part (51) can abut or engage with the second limiting part (52). The head limiting structure (4) is installed on the handle (2) near the tail end of the head (1). When the head (1) engages with the handle, the locking mechanism can lock the handle. When the handle (2) is in the open state, the first limiting part (51) abuts or engages with the second limiting part (52), and the pliers head limiting structure (4) abuts with the tail end of the pliers head (1); when the pliers head (1) and the handle (2) are in the closed state, the first limiting part (51) also abuts or engages with the second limiting part (52); when the pliers head (1) and the handle (2) are in the process of opening or closing, the first limiting part (51) and the second limiting part (52) disengage.

2. The pliers according to claim 1, characterized in that, The first limiting part (51) is a protrusion and the second limiting part (52) is a groove; or the first limiting part (51) is a groove and the second limiting part (52) is a protrusion; or the first limiting part (51) is a protrusion and the second limiting part (52) is a plane.

3. The pliers according to claim 2, characterized in that, There are at least two second limiting parts (52). The two second limiting parts (52) are arranged facing each other with the hinge point of the pliers head (1) and the pliers handle (2) as the center. When the pliers head (1) and the pliers handle (2) are in the open or closed state, the first limiting part (51) abuts or engages with the second limiting parts (52) at different positions respectively.

4. The pliers according to claim 3, characterized in that, The elastic component (3) and the clamp head limiting structure (4) are located on opposite or adjacent sides of the clamp handle (2).

5. The pliers according to claim 4, characterized in that, The clamp head limiting structure (4) is located at the front end of the clamp handle (2) and relative to the tail end of the clamp head (1).

6. The pliers according to any one of claims 1 to 5, characterized in that, The elastic component (3) is integrally formed with the pliers handle (2) and cantilevered. A clearance gap is provided on the pliers handle (2) on the side of the elastic component (3); or the elastic component (3) and the pliers handle (2) are detachably connected.

7. The pliers according to claim 6, characterized in that, When the elastic component (3) is integrally formed with the pliers handle (2), the elastic component (3) is an elastic rod (31); when the elastic component (3) and the pliers handle (2) are separately arranged, the elastic component (3) includes a mounting part (32) and an elastic rod (31). The elastic rod (31) and the mounting part (32) are integrally formed. The mounting part (32) is provided with a clearance gap on the side of the elastic rod (31). The elastic rod (31) is cantilevered on the mounting part (32). The mounting part (32) is fixedly connected to the pliers handle (2).

8. The pliers according to claim 1, characterized in that, The clamp head limiting structure (4) is a stop located on the clamp handle (2) near the end of the clamp head (1).

9. The pliers according to claim 1, characterized in that, The pliers (1) includes a first pliers (11) and a second pliers (12) hinged together, and the pliers (2) includes a first pliers (21) hinged to the tail end of the first pliers (11) and a second pliers (22) hinged to the tail end of the second pliers (12).

10. The pliers according to claim 1, characterized in that, The pliers handle (2) has a space for accommodating the pliers head (1), which can be rotated, folded and stored in the pliers handle (2).

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