Head-replaceable pliers

Abstract

The utility model discloses a pair of head-replaceable pliers, which comprises a handle, a pair of head-replaceable pliers and a pair of head-replaceable pliers, the at least one tong head is detachably mounted in the mounting cavity; the limiting piece comprises a first connecting piece, at least part of the outer wall of the first connecting piece is provided with a first limiting part matched with the inner wall of the mounting cavity, and at least part of the inner wall of the first connecting piece is provided with a second limiting part matched with the side wall of the tong head; and the second plate body is connected with the first connecting piece in a bending manner, and at least part of the second plate body is provided with a third limiting part for limiting the tong head. According to the utility model, the structure is simple, the elastic piece is arranged at the plier head part, so that the plier arms of the plier head can be propped against the mounting cavity, the plier head can be quickly disassembled and assembled, is convenient to replace and use and is easy to carry, the plier handle can be matched with a plurality of plier heads with different functions, the cost is effectively reduced, and the occupied space is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of tool accessories and equipment, and specifically relates to a head-changing pliers. Background Technology

[0002] Pliers are hand tools used to grip and hold workpieces or to twist, bend, and cut metal wires. Different types of pliers are selected based on the object being gripped or the function being performed. Common types include wire cutters, wire strippers, pipe wrenches, needle-nose pliers, and flat-nose pliers. Workers often need to carry multiple pairs of different types of pliers to meet various needs. However, because pliers are made of metal alloys, they are heavy, take up a lot of space, and are inconvenient to carry. Therefore, having a pair of pliers with interchangeable heads is essential. Utility Model Content

[0003] To solve at least one of the above-mentioned technical problems, this utility model provides a head-changing pliers, comprising:

[0004] The handle has a mounting cavity.

[0005] At least one clamp head is detachably mounted in the mounting cavity;

[0006] At least one limiting member, the limiting member comprising:

[0007] The first connector has at least a first limiting part on its outer wall that mates with the inner wall of the mounting cavity, and at least a second limiting part on its inner wall that mates with the side wall of the pliers head.

[0008] The second plate is bent and connected to the first connector, and the second plate is at least partially provided with a third limiting part that limits the clamp head.

[0009] The handle has at least one mounting hole, and the first connector includes:

[0010] A first plate, on which a connection hole is provided;

[0011] The mounting member passes through the mounting hole and the connecting hole to secure the handle and the limiting member. The first limiting portion is formed on the outer wall of the first plate, and the inner wall of the mounting member at least partially forms the second limiting portion.

[0012] Through the above technical solution, the pliers head can be wire cutters, wire strippers, pipe cutters, needle-nose pliers, flat-nose pliers, scissor heads, sheet metal shears, fruit pruning shears, chicken bone shears, cable cutters, diagonal pliers, crimping pliers, etc., and can be detachably connected to the handle, which can reduce the weight of carrying.

[0013] Preferably, the mounting component includes rivets, which are used to securely rivet the limiting component to the handle.

[0014] The inner wall of the rivet fits against the side wall of the pliers head. The shape of the first plate is an arc surface adapted to the inner wall of the mounting cavity, increasing the stability of the connection.

[0015] The line containing the second plate is perpendicular to the clamp arm of the clamp head. Two limiting members are provided and symmetrically arranged on the inner wall of the mounting cavity.

[0016] The pliers head includes a first plier arm and a second plier arm, which are connected by a second pivot. At least part of the bottom of the first plier arm and the second plier arm is placed in the mounting cavity. An elastic member is installed between the first plier arm and the second plier arm placed in the mounting cavity, and the elastic member abuts the first plier arm and the second plier arm against the second limiting part.

[0017] The first clamp arm and / or the second clamp arm have protrusions and / or grooves on their opposite sidewalls, and the two ends of the elastic member rest on the protrusions and / or grooves.

[0018] The elastic element is a fixed-diameter spring or a variable-diameter spring.

[0019] The two sidewalls of the mounting limiting component can fit against part of the sidewall of the pliers head. Since this invention can be made of alloy material, it will generate magnetism after repeated friction, increasing the installation stability during connection and achieving stable limiting. The second limiting part can also generate a certain amount of magnetism after repeated friction, increasing the installation stability during connection.

[0020] The handle includes a first handle body and a second handle body, which are connected by a first pivot.

[0021] The limiting component also includes a third plate that is angled to the first plate, and the second handle has at least one first limiting groove that cooperates with the third plate to limit the opening angle of the first handle and the second handle.

[0022] Alternatively, a second limiting groove is provided on the second handle, and a protrusion is provided on the inner wall of the first handle. The protrusion moves within the second limiting groove to limit the opening angle of the first handle and the second handle.

[0023] Compared with the prior art, the advantages of this utility model are as follows: This utility model has a simple structure. By setting an elastic element in the pliers head, the pliers arm can be pressed against the mounting cavity, which can realize quick disassembly and assembly of the pliers head, making it easy to replace, convenient to use, and easy to carry. The pliers handle can be used with multiple pliers heads with different functions, which effectively reduces costs and space occupation. Attached Figure Description

[0024] Figure 1 This is a side view of the present invention;

[0025] Figure 2 This is a perspective view of the cross-section of the present invention;

[0026] Figure 3 This is a perspective view of the present utility model;

[0027] Figure 4 Side view of the cross section of this utility model in use. Figure 1 ;

[0028] Figure 5 Side view of the cross section of this utility model in use. Figure 2 ;

[0029] Figure 6 This is a cross-sectional schematic diagram of other clamp head structures of this utility model;

[0030] Figure 7 This is a schematic diagram of the cross-section of the handle section;

[0031] Figure 8 A 3D view of the limiting component;

[0032] Figure 9 A three-dimensional view of the rivet structure;

[0033] Figure 10 Enlarged cross-section diagram of the second limiting groove section Figure 1 ;

[0034] Figure 11 Schematic diagram of the cross-section of the rivet structure. Figure 2 ;

[0035] Figure 12 This is a schematic diagram of the cross-section of the protrusion in other embodiments.

[0036] Figure label:

[0037] 1. Handle; 101. Mounting cavity; 102. Mounting hole; 103. First handle body; 104. Second handle body; 1041. First limiting groove; 1042. Second limiting groove; 105. Anti-slip sleeve; 106. First pivot;

[0038] 2. Pliers head; 201. First pliers arm; 202. Second pliers arm; 203. Elastic element; 204. Protrusion; 205. Groove; 206. Second pivot;

[0039] 3. Limiting component; 301. First connecting component; 3011. First plate; 30111. Connecting hole; 3012. Mounting component; 302. Second plate; 303. First limiting part; 304. Second limiting part; 305. Third limiting part; 306. Third plate; 307. Rivet structure. Detailed Implementation

[0040] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model concept, and are only a part of the embodiments of this utility model. The specific and direct description of related structures is only for the convenience of understanding this utility model, and the specific features do not necessarily or directly limit the scope of implementation of this utility model.

[0041] Referring to the accompanying drawings, this utility model adopts the following technical solution: this utility model provides a head-changing pliers, comprising:

[0042] Handle 1, the handle 1 is provided with a mounting cavity 101;

[0043] At least one clamp head 2 is detachably mounted in the mounting cavity 101;

[0044] At least one limiting member 3, the limiting member 3 comprising:

[0045] The first connector 301 has at least a first limiting part 303 on its outer wall that mates with the inner wall of the mounting cavity 101, and at least a second limiting part 304 on its inner wall that mates with the side wall of the pliers head 2.

[0046] The second plate 302 is bent and connected to the first connector 301, and the second plate 302 is at least partially provided with a third limiting part 305 that limits the clamp head 2.

[0047] The handle 1 has at least one mounting hole 102, and the first connector 301 includes:

[0048] The first plate 3011 has a connecting hole 30111.

[0049] Mounting member 3012 passes through mounting hole 102 and connecting hole 30111 to fix handle 1 and limiting member 3. First limiting part 303 is formed on the outer wall of first plate 3011. The inner wall of mounting member 3012 at least partially forms second limiting part 304.

[0050] Through the above technical solution, the pliers head 2 can be wire cutters, wire strippers, pipe cutters, needle-nose pliers, flat-nose pliers, scissor heads, sheet metal shears, fruit pruning shears, chicken bone shears, cable cutters, diagonal pliers, crimping pliers, etc., and can be detachably connected to the handle 1, which can reduce the weight of carrying.

[0051] Preferably, the mounting component 3012 includes rivets, which are used to fix the limiting component 3 to the handle 1.

[0052] The inner wall of the rivet fits against the side wall of the clamp head 2. The shape of the first plate 3011 is adapted to the arc surface of the inner wall of the mounting cavity 101, increasing the stability of the connection.

[0053] The line containing the second plate 302 is perpendicular to the clamp arm of the clamp head 2. Two limiting members 3 are provided and symmetrically arranged on the inner wall of the mounting cavity 101.

[0054] The clamp head 2 includes a first clamp arm 201 and a second clamp arm 202, which are connected by a second rotating shaft 206. The bottom of the first clamp arm 201 and the second clamp arm 202 is at least partially placed in the mounting cavity 101. An elastic member 203 is installed between the first clamp arm 201 and the second clamp arm 202 in the mounting cavity 101. The elastic member 203 abuts the first clamp arm 201 and the second clamp arm 202 against the second limiting part 304.

[0055] The first clamp arm 201 and / or the second clamp arm 202 are provided with protrusions 204 and / or grooves 205 on the sidewalls opposite to each other, and the two ends of the elastic member 203 are located at the protrusions 204 and / or grooves 205.

[0056] The elastic element 203 is a fixed-diameter spring or a variable-diameter spring.

[0057] The two sidewalls of the mounting limiting member 3 can fit against part of the sidewalls of the pliers head 2. Since this invention can be made of alloy material, it will generate magnetism after repeated friction, increasing the installation stability during connection and achieving stable positioning. The second limiting part 304 can also generate a certain amount of magnetism after repeated friction, increasing the installation stability during connection.

[0058] The handle 1 includes a first handle body 103 and a second handle body 104, which are connected by a first rotating shaft 106.

[0059] Anti-slip sleeves 105 can be fitted over the first handle body 103 and the second handle body 104.

[0060] The limiting member 3 also includes a third plate 306 that is angled to the first plate 3011. The second handle 104 is provided with at least one first limiting groove 1041 that cooperates with the third plate 306 to limit the opening angle of the first handle 103 and the second handle 104.

[0061] Alternatively, a second limiting groove 1042 is provided on the second handle 104, and a protrusion is provided on the inner wall of the first handle 103. The protrusion moves within the second limiting groove 1042 to limit the opening angle of the first handle 103 and the second handle 104. In this embodiment, a rivet structure 307 can be installed on the first handle, and the rivet structure 307 located on the inner side forms the protrusion. In other embodiments, the protrusion can be integrally formed by stamping on the first handle, such as... Figure 12 As shown.

[0062] When this utility model is put into use, the end of the pliers head 2 can be squeezed to compress the spring at the other end. Then, the pliers arm is inserted into the mounting cavity 101 and released. The spring will press the pliers arm against the second limiting part 304. When in use, after the first handle body 103 and the second handle body 104 are retracted, the second limiting part 304 presses against the pliers arm to retract the spring, thus realizing the function of using pliers.

[0063] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure. By setting the elastic element 203 in the pliers head 2, the pliers arm of the pliers head 2 can be pressed against the mounting cavity 101, which can realize the quick disassembly and assembly of the pliers head 2, which is convenient to replace, easy to use, and easy to carry. The pliers handle can be used with multiple pliers head 2 with different functions, which effectively reduces costs and space occupation.

[0064] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A type of head-changing pliers, characterized in that: include: Handle (1), with a mounting cavity (101) on the handle (1); At least one clamp head (2) is detachably mounted in the mounting cavity (101); At least one limiting member (3), said limiting member (3) comprising: The first connector (301) has at least a first limiting part (303) on its outer wall that cooperates with the inner wall of the mounting cavity (101), and at least a second limiting part (304) on its inner wall that cooperates with the side wall of the pliers head (2). The second plate (302) is bent and connected to the first connector (301), and the second plate (302) is at least partially provided with a third limiting part (305) for limiting the pliers (2).

2. The tipper tongs according to claim 1, characterized in that: The handle (1) has at least one mounting hole (102), and the first connector (301) includes: The first plate (3011) has a connecting hole (30111) on it. Mounting member (3012) passes through mounting hole (102) and connecting hole (30111) to fix handle (1) and limiting member (3), the first limiting part (303) is formed with the outer wall of the first plate (3011), and the inner wall of mounting member (3012) at least partially forms the second limiting part (304).

3. The tipper tongs according to claim 2, characterized in that: The mounting component (3012) includes rivets.

4. The interchangeable tip forceps according to claim 3, wherein: The inner wall of the rivet is at least partially in contact with the side wall of the pliers (2).

5. The tipper tongs according to claim 2, characterized in that: The first plate (3011) is shaped to fit the arc surface of the inner wall of the mounting cavity (101).

6. The tipper tongs according to claim 1, characterized in that: The line of the second plate (302) is perpendicular to the clamp arm of the clamp head (2); and / or, the limiting member (3) is provided in two and symmetrically arranged on the inner wall of the mounting cavity (101).

7. The head-changing pliers according to claim 1, characterized in that: The clamp head (2) includes a first clamp arm (201) and a second clamp arm (202), the first clamp arm (201) and the second clamp arm (202) are connected by a second rotating shaft (206), the bottom of the first clamp arm (201) and the second clamp arm (202) are at least partially placed in the mounting cavity (101), and a head elastic member (203) is installed between the first clamp arm (201) and the second clamp arm (202) in the mounting cavity (101), the elastic member (203) abuts the first clamp arm (201) and the second clamp arm (202) against the second limiting part (304).

8. The tipper tongs according to claim 7, characterized in that: The first clamp arm (201) and / or the second clamp arm (202) have protrusions (204) and / or grooves (205) on their opposite sidewalls, and the two ends of the elastic member (203) are located at the protrusions (204) and / or grooves (205). And / or, the elastic element (203) is a variable diameter spring.

9. The tipper tongs according to claim 1, characterized in that: The handle (1) includes a first handle body (103) and a second handle body (104), and the first handle body (103) and the second handle body (104) are connected by a first pivot (106).

10. The tip changing forceps according to claim 9, characterized by: The limiting member (3) also includes a third plate (306) that is angled to the first plate (3011), and at least one first limiting groove (1041) that cooperates with the third plate (306) is provided on the second handle (104) to limit the opening angle of the first handle (103) and the second handle (104); Alternatively, a second limiting groove (1042) is provided on the second handle (104), and a protrusion is provided on the inner wall of the first handle (103). The protrusion moves within the second limiting groove (1042) to limit the opening angle of the first handle (103) and the second handle (104).

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