CN221892116U - Punch pliers - Google Patents

Abstract

The utility model discloses a punching clamp, which aims to solve the technical problem that the existing punching clamp is not labor-saving enough. In order to solve the technical problems, the utility model adopts the following technical scheme: a perforating clamp is designed, comprising: the handle comprises a fixed handle and a rotary handle; the upper part of the fixed handle is fixedly connected with the clamp seat, and the upper part of the rotary handle is hinged with the clamp seat; the punching needle is arranged below the opening of the clamp seat, the jaw part of the clamp seat is provided with a punching hole, and the top end of the punching needle is arranged in the punching hole; the pressure lever is obliquely downwards arranged, the front part of the pressure lever is hinged with the clamp seat, the front end of the pressure lever is abutted to the bottom of the punching needle, the tail end of the pressure lever is positioned on the inner side of the rotating handle, and the front end of the pressure lever can be driven to upwards push the punching needle when the rotating handle rotates. The utility model has the beneficial effects that: simplifying the structure of the device and saving more labor.

Description

Punch pliers

Technical Field

The utility model relates to the technical field of hardware tools, in particular to a punching pliers.

Background Art

Punching pliers are tools for punching holes in sheet materials such as leather, paper, thin metal, and plastic. The punch is pushed by a handle to punch. The punch is set in the clamp seat, and the handle and the clamp seat are connected by rotation to form a lever. According to the lever principle, the longer the handle, the less effort is required. However, if the handle is too long, the distance between the two handles will be too large and inconvenient to operate. If the handle is too short, it will be more laborious. The handle of the existing punching pliers is set below the clamp seat, which is not conducive to increasing the length of the handle. Therefore, it is necessary to save as much effort as possible to complete the punching work at a suitable handle length.

Summary of the invention

The utility model provides a punching pliers to solve the technical problem that the existing punching pliers are not labor-saving enough.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

Design a punching pliers, including:

Handle, including fixed handle and rotating handle;

A clamp seat, an opening is arranged on one side of the upper part of the clamp seat, the opening has an upper jaw and a lower jaw, the upper part of the fixed handle is fixedly connected to the clamp seat, and the upper part of the rotating handle is hinged to the clamp seat;

A punching needle is arranged below the opening of the clamp seat, the lower jaw of the clamp seat has a punching needle hole, and the top end of the punching needle is arranged in the punching needle hole;

The pressure rod is arranged obliquely downward, the front part of the pressure rod is hinged with the clamp seat and the front end of the pressure rod abuts against the bottom of the punch needle. The end of the pressure rod is located on the inner side of the rotating handle. When the rotating handle is rotated, the front end of the pressure rod can be driven to push the punch needle upward.

Furthermore, the pressure rod is bent and has a bending point. The pressure rod before the bending point is arranged obliquely upward, and the pressure rod after the bending point is arranged obliquely downward.

Furthermore, a clamping groove is provided inside the clamp seat, the rotating handle is hinged at the top of the clamping groove, and the pressure rod is hinged at the bottom of the clamping groove.

Furthermore, positioning grooves are provided on both sides of the clamp seat, the upper part of the fixed handle is U-shaped, and the upper part of the fixed handle is arranged in the positioning groove to clamp the clamp seat inside the U shape.

Furthermore, a first limit pin is provided on the clamp seat above the rotating rod, and a second limit pin is provided on the clamp seat below the pressing rod.

Furthermore, the front end of the pressure rod is provided with a front roller or a front arc-shaped protrusion abutting against the bottom of the punch needle, and the end of the pressure rod is provided with a rear roller or a front arc-shaped protrusion abutting against the rotating handle.

Furthermore, the punching needle includes a needle body, a base, and a connecting sleeve. The bottom of the connecting sleeve and the base are threadedly connected or integrally formed. The top of the connecting sleeve is provided with a needle groove, and the needle body is arranged in the needle groove.

Furthermore, a return spring is arranged on the punch pin, and a contact portion is arranged at the bottom of the punch pin. The lower end of the return spring abuts against the contact portion, and the upper end abuts against the bottom surface of the lower jaw of the clamp seat.

Further, the upper jaw of the clamp seat is provided with a punch cap, the punch cap includes a clamping bolt and a cap body, the upper jaw of the clamp seat includes a punch cap hole, the punch cap hole has a step portion, the cap body is arranged in the punch cap hole and abuts against the step portion, the clamping bolt is threadedly connected with the punch cap hole and clamps the cap body. Alternatively, the punch cap includes a cap column and a cap head, the cap head is located below the upper jaw of the clamp seat and abuts against the lower edge of the punch cap hole, the cap column is located in the punch cap hole, and a top screw is arranged on the side of the upper jaw of the cavity to fix the punch cap.

Compared with the prior art, the beneficial technical effect of the utility model is that: the utility model connects the top of the rotating rod and the top of the clamp seat to increase the effective length of the rotating rod subjected to force, and a pressure rod is provided to abut the rotating handle. When the rotating handle pushes the pressure rod to rotate, the resistance arm of the pressure rod will become smaller, which is more labor-saving.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of the punching pliers of the present invention.

FIG. 2 is a schematic diagram of the internal structure of the punching pliers of the present invention.

FIG. 3 is a schematic right side view of the clamp seat of the punching pliers of the present invention.

FIG. 4 is a schematic structural diagram of a fixed handle of the punching pliers of the present invention.

FIG. 5 is a schematic structural diagram of a punching needle of the utility model punching pliers.

FIG. 6 is a schematic diagram of the punch cap structure of the punching pliers of the present invention.

In the figure, handle 1, rotating handle 11, fixed handle 12, grip rod 121, clamp 122; clamp seat 2, opening 21, upper jaw 22, lower jaw 23, clamping groove 24, positioning groove 25, first limit pin 26, second limit pin 27; punch 3, needle body 31, base 32, connecting sleeve 33, reset spring 34; pressure strip 4, bending point 41, first hinge point 42; tightening bolt 51, cap body 52.

DETAILED DESCRIPTION

The specific implementation modes of the present invention are described below in conjunction with the accompanying drawings and embodiments. However, the following embodiments are only used to illustrate the present invention in detail and do not limit the scope of the present invention in any way.

Embodiment 1: A punching pliers, see Figures 1 and 2, includes a handle 1, a pliers seat 2, a punch needle 3, and a pressure rod 4, wherein the structure of the pliers seat 2 is shown in Figures 1 and 3, the pliers seat 2 is arranged on the upper part of the punching pliers, an opening 21 is arranged on one side of the pliers seat 2, the opening 21 has an upper jaw 22 and a lower jaw 23, the lower part and the side of the pliers seat 2 have a connecting clamping groove 24, the handle 1 includes a rotating handle 11 and a fixed handle 12, the rotating handle 11 is arranged in the clamping groove 24 on the right side of the pliers seat 2, and its top is hinged to the pliers seat 2, and the fixed handle 12 is fixed to the left side of the pliers seat 2.

The structure of the fixed handle is shown in Figure 4, which includes a grip rod 121 at the bottom and two clamps 122 at the top. Positioning grooves 25 are set on the front and rear surfaces of the clamp seat 2. The clamps 122 are fixed to the top of the positioning grooves 25 so that the fixed handle clamps the clamp seat 2, which is more conducive to maintaining structural stability.

A punching needle 3 is arranged in the clamping groove 24 on the left side of the clamp seat 2, and the top of the punching needle 3 is located in the punching needle hole arranged on the lower jaw 23. The structure of the punching needle 3 is shown in Figure 5, including a needle body 31, a base 32, and a connecting sleeve 33. The top of the connecting sleeve 33 is provided with a needle groove, and the bottom of the needle body 31 is arranged in the needle groove. The needle groove serves as a limit for the needle body 31, and the needle groove and the needle body 31 can be threaded or sleeved. The bottom of the connecting sleeve 33 is threadedly connected to the base 32, and the length of the punching needle can be adjusted by threading the base 33. In some other trial methods, the needle body 31 and the connecting sleeve 33 can also be an integrally formed structure, or the base 32 and the connecting sleeve 33 are an integrally formed structure, or the entire punching needle is an integrally formed structure.

As a further improvement, the punching needle 3 further comprises a return spring 34 , one end of the return spring 34 abuts against the base 32 , and the other end abuts against the bottom surface of the lower jaw 23 of the clamp seat 2 .

A pressure rod 4 is arranged in the clamping groove 24 below the clamp seat 2. The pressure rod 4 is bent and has a bending point 41. The pressure rod 4 on the left side of the bending point 41 is arranged obliquely upward, and the pressure rod 4 behind the bending point 41 is arranged obliquely downward. A first hinge point 42 is arranged at the front of the pressure rod 4 to be hinged with the clamp seat 2. A U-shaped groove can be arranged at the front end of the pressure rod 4 below the punch 3 and a roller can be added to reduce friction. Similarly, a U-shaped groove can be arranged at the position where the end of the pressure rod 4 abuts against the rotating handle 11, and a roller can be added, or an arc-shaped protrusion can be provided.

A first limiting pin 26 is provided on the clamp seat 2 above the rotating handle 11 , and a second limiting pin 27 is provided below the pressing rod 4 .

A punch cap is provided in the upper jaw 22 of the clamp seat 2, see FIG6, the punch cap includes a clamp bolt 51 and a cap body 52, the upper jaw 22 of the clamp seat 2 is provided with a punch cap hole, the punch cap hole has a step portion, the cap body 52 is provided in the punch cap hole and abuts against the step portion, the clamp bolt 51 and the punch cap hole are threadedly connected and clamp the cap body 52. In some other embodiments, a threaded hole may be provided at the bottom of the clamp bolt to be threadedly connected to the cap body 52, or the clamp bolt 51 and the cap body 52 may be made into an integral body, in which case the step portion is no longer required in the punch cap hole.

Alternatively, the punch cap may also adopt the following structure: comprising a cap column and a cap head, the cap head being located below the upper jaw of the clamp seat and abutting against the lower edge of the punch cap hole, the cap column being located in the punch cap hole, and a top screw being arranged on the side of the upper jaw of the cavity to fix the punch cap.

When in use, the handle 11 is pressed inward to rotate, and the right rear half of the pressure rod 4 rotates downward. At this time, according to the lever principle, the left front half of the pressure rod 4 rotates upward, pushing the punch needle 3 upward, and cooperating with the punch cap to punch a hole on the plate placed in the opening 21. Since the resistance arm of the pressure rod 4 will gradually become smaller during the punching operation, the use process is more labor-saving.

The utility model is described in detail above with reference to the accompanying drawings and embodiments. However, those skilled in the art will appreciate that, without departing from the spirit of the utility model, the specific parameters in the above embodiments may be changed to form a plurality of specific embodiments, which are all within the common variation range of the utility model and will not be described in detail here.

Claims (10)

1. A punching pliers, characterized by comprising: a handle, including a fixed handle and a rotating handle; A clamp seat, an opening is arranged on one side of the upper part of the clamp seat, the opening has an upper jaw and a lower jaw, the upper part of the fixed handle is fixedly connected to the clamp seat, and the upper part of the rotating handle is hinged to the clamp seat; A punching needle is arranged below the opening of the clamp seat, the lower jaw of the clamp seat has a punching needle hole, and the top end of the punching needle is arranged in the punching needle hole; The pressure rod is arranged obliquely downward, the front part of the pressure rod is hinged with the clamp seat and the front end of the pressure rod abuts against the bottom of the punch needle. The end of the pressure rod is located on the inner side of the rotating handle. When the rotating handle is rotated, the front end of the pressure rod can be driven to push the punch needle upward. 2. The punching pliers according to claim 1 are characterized in that the pressure rod is bent and has a bending point, the end of the pressure rod before the bending point is located below the punch needle, and the end of the pressure rod after the bending point is arranged obliquely downward to abut against the rotating handle. 3. The punching pliers according to claim 1 are characterized in that a clamping groove is provided inside the pliers seat, the rotating handle is hinged at the top of the clamping groove, and the pressure rod is hinged at the bottom of the clamping groove. 4. The punching pliers according to claim 1 are characterized in that positioning grooves are provided on both sides of the pliers seat, the upper part of the fixed handle is U-shaped, and the upper part of the fixed handle is arranged in the positioning groove to clamp the pliers seat inside the U shape. 5. The punching pliers according to claim 1 are characterized in that a first limit pin is provided on the pliers seat above the rotating rod, and a second limit pin is provided on the pliers seat below the pressure rod. 6. The punching pliers according to claim 1 are characterized in that the front end of the pressure rod is provided with a front roller or a front arc-shaped protrusion abutting against the bottom of the punch needle, and the end of the pressure rod is provided with a rear roller or a rear arc-shaped protrusion abutting against the rotating handle. 7. The punching pliers according to claim 1 are characterized in that the punching needle includes a needle body, a base, and a connecting sleeve, the bottom of the connecting sleeve and the base are threadedly connected or integrally formed, a needle groove is provided on the top of the connecting sleeve, and the needle body is arranged in the needle groove. 8. The punching pliers according to claim 7 are characterized in that a return spring is provided on the punch needle, a contact portion is provided at the bottom of the punch needle, the lower end of the return spring abuts against the contact portion, and the upper end abuts against the bottom surface of the lower jaw of the pliers seat. 9. The punching pliers according to claim 1 are characterized in that the upper jaw of the pliers seat is provided with a punch cap, the punch cap includes a clamping bolt and a cap body, the upper jaw of the pliers seat includes a punch cap hole, the punch cap hole has a step portion, the cap body is arranged in the punch cap hole and abuts against the step portion, the clamping bolt and the punch cap hole are threadedly connected and clamp the cap body. 10. The punching pliers according to claim 1 are characterized in that the upper jaw of the pliers seat is provided with a punch cap, and the upper jaw of the pliers seat is provided with a punch cap hole, the punch cap includes a cap column and a cap head, the cap head is located below the upper jaw of the pliers seat and abuts against the lower edge of the punch cap hole, the cap column is located in the punch cap hole, and a top screw is provided on the side of the upper jaw of the cavity to fix the punch cap.