Punching pliers

Abstract

The utility model provides a pair of punching pliers, and relates to the technical field of punching tools. The punching clamp comprises a support, a movable plate and a positioning piece, the movable plate is movably arranged on the support, a plurality of first through holes are formed in the movable plate in the moving direction of the movable plate, a plurality of positioning matching parts are arranged on the movable plate, the positioning piece is arranged on the support, and the positioning piece is selectively matched with any positioning matching part. Therefore, the movable plate can be positioned, and the hole changing action can be quickly completed.

Description

Technical Field

[0001] The present application relates to the technical field of punching tools, and in particular to a punching pliers. Background Art

[0002] Punch pliers are a tool specifically used for punching holes. Punch pliers belong to the category of daily necessities and are designed to punch holes in paper, cardboard or other materials. They usually provide multiple hole sizes to choose from to meet different needs.

[0003] For conventional penetrating punching pliers, a series of complex actions are required to complete the hole changing. The operation is very cumbersome and it is easy to cause inaccurate hole changing position. Utility Model Content

[0004] The purpose of the present application includes, for example, providing a punching pliers that can quickly complete the hole changing action.

[0005] The embodiments of the present application can be implemented as follows:

[0006] An embodiment of the present application provides a punching pliers, which includes a bracket, a movable plate and a positioning member. The movable plate is movably arranged on the bracket. In the moving direction of the movable plate, a plurality of first through holes are opened on the movable plate, and a plurality of positioning matching parts are provided on the movable plate. The positioning member is arranged on the bracket, and the positioning member can selectively cooperate with any one of the positioning matching parts to position the movable plate.

[0007] Optionally, the positioning member is a first elastic member, the positioning matching portion is a slot, and the first elastic member can selectively match with any one of the slots to position the movable plate.

[0008] Optionally, the punching pliers further include a button, the movable plate is inserted into the button, the button can move in a direction perpendicular to the movable plate, and the button can resist and push the first elastic member out of the slot during the movement.

[0009] Optionally, the punching pliers further include a tail cover plate and a base shell, the tail cover plate is connected to the movable plate, the base shell is connected to the bracket, and a fourth elastic member is provided between the tail cover plate and the base shell.

[0010] Optionally, the punching pliers also includes a handle, a first plate is provided on the bracket, the front end of the handle is hinged to the first plate, a first waist-shaped hole is provided on the first plate, and a second waist-shaped hole is provided on the handle. The punching pliers also include a rotating shaft, which is penetrated by the first waist-shaped hole and the second waist-shaped hole at the same time, and a rotating wheel is sleeved on the rotating shaft, and the rotating wheel is provided with a plurality of cutting heads at intervals along its own circumference, and the rotating wheel is provided with a plurality of mating surfaces at intervals along its own circumference, and a second elastic member is provided on the first plate, and the second elastic member can cooperate with any of the mating surfaces to prevent the rotating wheel from rotating.

[0011] Optionally, the second elastic member is a torsion spring having a fixed end and a movable end, the fixed end is connected to the bracket, and the movable end can cooperate with any of the mating surfaces. A limiting screw is provided on the first plate, and the movable end is located between the rotating wheel and the limiting screw.

[0012] Optionally, a third elastic member is provided on the first plate, and the third elastic member is connected to the handle to reset the handle.

[0013] Optionally, a knob is provided at one end of the rotating shaft.

[0014] Optionally, an alignment plate is movably provided on the bracket, and the alignment plate is used to support the piece to be punched. A fastener is provided on the bracket, and the fastener is used to fix the alignment plate to the bracket.

[0015] Optionally, a buffer base is provided at the bottom of the bracket.

[0016] The beneficial effects of the punching pliers provided by the embodiments of the present application include, for example: in order to be able to quickly complete the hole-changing action, a punching pliers is designed, the punching pliers including a bracket, a movable plate and a positioning member, the movable plate is movably arranged on the bracket, a plurality of first through holes are opened on the movable plate in the moving direction of the movable plate, and a plurality of positioning matching parts are provided on the movable plate, the positioning member is provided on the bracket, and the positioning member can selectively match with any one of the positioning matching parts to position the movable plate. When it is necessary to change the hole, the positioning member is released from the positioning matching part, and then the movable plate is moved so that another first through hole moves to the punching position. At this time, the positioning member is matched with the positioning matching part corresponding to its own position to position the movable plate. The movable plate and the bracket are relatively fixed, thereby quickly completing the hole-changing action, and the hole-changing position is relatively accurate due to the positioning function of the positioning member. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the punching pliers in the non-punching state according to an embodiment of the present application;

[0019] Figure 2 This is a schematic diagram of the punching pliers in the punching state according to an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the partial explosion structure of the punching pliers in the embodiment of the present application;

[0021] Figure 4 This is a schematic diagram for illustrating the positional relationship between the movable plate, the bracket, and the button in the embodiment of the present application;

[0022] Figure 5 This is a partial schematic diagram of the first type of punching pliers in the embodiment of the present application;

[0023] Figure 6 This is a second partial schematic diagram of the punching pliers in the embodiment of the present application.

[0024] Icons: 10-punch pliers; 100-bracket; 110-second through hole; 120-first plate; 121-first waist-shaped hole; 122-first torsion spring; 123-limiting screw; 124-second torsion spring; 125-second plate; 130-alignment plate; 140-fastener; 150-buffer base; 160-third through hole; 200-movable plate; 210-first through hole; 220-positioning fit Part; 230-limiting block; 300-elastic clip; 310-ear protector; 400-button; 410-side wing plate; 420-limiting rib; 500-handle; 510-second waist-shaped hole; 520-housing; 600-rotating shaft; 610-rotating wheel; 611-matching surface; 620-cutting head; 630-knob; 700-top cover; 800-tail cover plate; 810-spring; 900-base housing. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0028] In the description of this application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on this application.

[0029] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0030] It should be noted that, in the absence of conflict, the features in the embodiments of this application can be combined with each other.

[0031] The inventors of the present application have found that conventional penetrating punching pliers require a series of complex actions to complete the hole change, which is very cumbersome and prone to inaccurate hole change positions. The embodiments of the present application provide a punching pliers that at least solve this technical problem.

[0032] Please refer to Figures 1-4 The punching pliers 10 provided in the embodiment of the present application include a bracket 100, a movable plate 200 and a positioning member. The movable plate 200 is movably arranged on the bracket 100. In the moving direction of the movable plate 200, a plurality of first through holes 210 are opened on the movable plate 200. The apertures of the plurality of first through holes 210 are different, and a plurality of positioning matching parts 220 are provided on the movable plate 200. The positioning member is arranged on the bracket 100, and the positioning member can selectively cooperate with any one of the positioning matching parts 220 to position the movable plate 200.

[0033] The front end of the bracket 100 is roughly U-shaped, and the U-shaped part of the front end of the bracket 100 is provided with an upward inclination angle to provide a better punching field of view and facilitate observation by the operator; the movable plate 200 is long and narrow, and the moving direction of the movable plate 200 is consistent with the length direction of the movable plate 200. The opening direction of the first through hole 210 is perpendicular to the plate surface of the movable plate 200. The bracket 100 is provided with a second through hole 110 that can be connected to the first through hole 210. The position corresponding to the axial direction of the second through hole 110 is the punching position; the multiple first through holes 210 are arranged as a whole at intervals with the multiple positioning matching parts 220 as a whole. When the positioning member is matched with any one of the positioning matching parts 220, the movable plate 200 and the bracket 100 are relatively fixed.

[0034] When it is necessary to change the hole, the positioning piece is first released from the positioning matching portion 220, and then the movable plate 200 is moved along the length direction of the movable plate 200 so that the other first through hole 210 moves to the punching position. At this time, the positioning piece is matched with the positioning matching portion 220 corresponding to its own position to position the movable plate 200. The movable plate 200 is then fixed relative to the bracket 100, thereby quickly completing the hole changing action, and due to the positioning function of the positioning piece, the hole changing position is more accurate.

[0035] In this embodiment, the positioning member is a first elastic member, and the positioning matching portion 220 is a slot. The first elastic member can selectively match with any one of the slots to position the movable plate 200 .

[0036] The first elastic member is an L-shaped elastic clip 300 , one end of which is fixed to the bracket 100 by screws, and the other end is bent downward and can be selectively engaged with any slot to position the movable plate 200 .

[0037] In other embodiments, the first elastic member may also be other types of elastic members, as long as it can be selectively engaged with any slot, and there is no limitation on this.

[0038] When it is necessary to change the hole, first disengage the elastic clip 300 from one of the slots, then move the movable plate 200 along the length direction of the movable plate 200 so that the other first through hole 210 moves to the punching position. At this time, the elastic clip 300 is then matched with another slot corresponding to its own position, thereby positioning the movable plate 200.

[0039] Please combine Figure 5 、 Figure 6 In this embodiment, the punching pliers 10 also includes a button 400, and the movable plate 200 is inserted into the button 400. The button 400 can move in a direction perpendicular to the movable plate 200. During the movement, the button 400 can resist and push the first elastic member out of the slot.

[0040] Along the direction of the plate surface perpendicular to the movable plate 200, the button 400 has a certain space for movement relative to the movable plate 200. When the button 400 is pressed, the button 400 moves toward the elastic clip 300, and then resists and pushes the elastic clip 300 out of the slot. At this time, the movable plate 200 can be moved to change the hole.

[0041] A side wing plate 410 is provided at the top of the button 400, and an ear protector 310 is provided on the elastic clip 300. When the button 400 is pressed, the side wing plate 410 of the button 400 can be against the ear protector 310 and push the elastic clip 300 out of the slot; a limiting rib 420 is provided inside the button 400. When the button 400 is released, the limiting rib 420 can be supported on the movable plate 200.

[0042] In this embodiment, the punching pliers 10 also includes a handle 500, a first plate 120 is provided on the bracket 100, the front end of the handle 500 is hinged to the first plate 120, a first waist-shaped hole 121 is provided on the first plate 120, and a second waist-shaped hole 510 is provided on the handle 500. The punching pliers 10 also includes a rotating shaft 600, which is penetrated by the first waist-shaped hole 121 and the second waist-shaped hole 510 at the same time, and a rotating wheel 610 is sleeved on the rotating shaft 600. The rotating wheel 610 is provided with a plurality of cutting heads 620 at intervals along its own circumference, and the rotating wheel 610 is provided with a plurality of mating surfaces 611 at intervals along its own circumference. A second elastic member is provided on the first plate 120, and the second elastic member can cooperate with any mating surface 611 to prevent the rotating wheel 610 from rotating.

[0043] The first plate 120 is a main sheet metal frame, and two first plates 120 are arranged opposite to each other along the width direction of the movable plate 200, and the two first plates 120 are both connected to the bracket 100; the handle 500 is a long sheet metal frame, and two handles 500 are arranged opposite to each other along the width direction of the movable plate 200, and the two handles 500 are hinged to the two first plates 120 by rivets respectively. Since the front end of the handle 500 is hinged to the first plate 120, the punching pliers 10 is more labor-saving; the rotating wheel 610 is spliced by two left and right cover bodies, and the two cover bodies are both mounted on the rotating shaft 600, and multiple mating surfaces 611 are all provided on one of the cover bodies.

[0044] One end of the rotating shaft 600 passes through the first waist-shaped hole 121 on one of the first plates 120 and the second waist-shaped hole 510 on one of the handles 500 at the same time, and the other end of the rotating shaft 600 passes through the first waist-shaped hole 121 on the other first plate 120 and the second waist-shaped hole 510 on the other handle 500 at the same time; the rotating wheel 610 is located between the two first plates 120, and the rotating wheel 610 is relatively fixed to the rotating shaft 600. The multiple cutting heads 620 on the rotating wheel 610 are of different models. When the cutting head 620 to be used is rotated to the punching position, the second elastic member is used to cooperate with the mating surface 611 corresponding to its own position to prevent the rotating wheel 610 from rotating, thereby keeping the cutting head 620 stable.

[0045] The number of mating surfaces 611 is the same as the number of cutter heads 620, and multiple mating surfaces 611 are matched one by one with multiple cutter heads 620. For example, when the number of cutter heads 620 is six, the number of mating surfaces 611 is also six. The embodiments of the present application do not limit the number of cutter heads 620 and mating surfaces 611; when the second elastic member is mated with one of the mating surfaces 611, the cutter head 620 matching the mating surface 611 rotates to the punching position.

[0046] In this embodiment, the second elastic member is a first torsion spring 122, which has a fixed end and a movable end. The fixed end is connected to the bracket 100, and the movable end can cooperate with any mating surface 611. A limiting screw 123 is provided on the first plate 120, and the movable end is located between the rotating wheel 610 and the limiting screw 123.

[0047] A first torsion spring 122 riveted shaft is provided on the first plate 120, and the first torsion spring 122 is wound on the riveted shaft of the first torsion spring 122. When the rotating wheel 610 is rotated and the movable end is separated from any mating surface 611, the rotating wheel 610 will give the movable end a force to move toward the limit screw 123. At this time, the limit screw 123 can limit the movable end. When the other mating surface 611 is rotated to a position close to the movable end, the movable end will re-mate with the mating surface 611, thereby preventing the rotating wheel 610 from rotating.

[0048] In the axial direction of the rotating shaft 600 , the cutter head 620 and the movable end of the first torsion spring 122 are staggered, so that interference between the cutter head 620 and the movable end of the first torsion spring 122 is unlikely to occur.

[0049] In other embodiments, the second elastic member may also be a spring sheet, which can also cooperate with any matching surface 611 to prevent the rotating wheel 610 from rotating.

[0050] In this embodiment, a third elastic member is provided on the first plate 120 , and the third elastic member is connected to the handle 500 to reset the handle 500 .

[0051] The third elastic member is arranged between the two first plates 120. The third elastic member is a second torsion spring 124. A second torsion spring 124 riveted axis is provided on the first plate 120 near the front end of the handle 500. The second torsion spring 124 is wound around the second torsion spring 124 riveted axis. The second torsion spring 124 also has a fixed end and a movable end. The fixed end is connected to the bracket 100, and the movable end is connected to any one of the handles 500.

[0052] When the handle 500 is pressed, the handle 500 can drive the rotating wheel 610 and the cutter head 620 to move toward the movable plate 200 through the rotating shaft 600. When the handle 500 is released, the handle 500 will be reset under the elastic action of the third elastic member, so that the cutter head 620 is away from the movable plate 200 to facilitate the hole changing action.

[0053] In some embodiments, the punch pliers 10 further includes a top cover 700 , which is connected to the handle 500 to cover the rotating wheel 610 . The handle 500 is further provided with a shell 520 to cover the portion of the handle 500 near the tail end.

[0054] When the top cover 700 is provided, the movable end of the second torsion spring 124 wound around the riveted axis of the second torsion spring 124 can also be connected to or abutted against the top cover 700 , so that the handle 500 can be reset when the handle 500 is released.

[0055] In this embodiment, the punching pliers 10 further include a tail cover plate 800 and a base shell 900 . The tail cover plate 800 is connected to the movable plate 200 , and the base shell 900 is connected to the bracket 100 . A fourth elastic member is provided between the tail cover plate 800 and the base shell 900 .

[0056] The tail cover 800 is connected to one end of the movable plate 200 by bolts. Each first plate 120 is connected to a second plate 125, and the second plate 125 is also a sheet metal frame. The base shell 900 is simultaneously mounted on the two second plates 125 to cover the tail cover 800 and the fourth elastic member; the fourth elastic member is a spring 810, and the two ends of the spring 810 are respectively connected to the tail cover 800 and the base shell 900.

[0057] After pressing the button 400 to release the elastic clip 300 from the slot, the button 400 is pushed toward the tail cover 800. The button 400 can push the tail cover 800 and the movable plate 200 to move simultaneously, thereby compressing the spring 810. When the button 400 is released, the spring 810 can apply a force to the tail cover 800 toward the movable plate 200 so that the movable plate 200 can be reset.

[0058] A third through hole 160 is provided on the bracket 100 for the movable plate 200 to pass through, and a limit block 230 is provided on the movable plate 200. During the resetting process of the movable plate 200, the limit block 230 can abut against the side wall of the bracket 100 in which the third through hole 160 is provided to limit the resetting action of the movable plate 200.

[0059] The second plate 125 is provided with a scale mark. When the button 400 is pushed, the position of the movable plate 200 is determined by observing the position of the button 400 corresponding to the scale mark, so that the first through hole 210 corresponding to the scale mark size can be moved to the punching position more accurately.

[0060] In this embodiment, a knob 630 is provided at one end of the rotating shaft 600 .

[0061] One end of the rotating shaft 600 extends out of the first plate 120 and is connected to the knob 630. By manually rotating the knob 630, the rotating wheel 610 can be rotated to replace the cutting head 620; the outer surface of the knob 630 is marked with multiple models of the cutting head 620 to indicate the cutting head 620 corresponding to the rotation position of the knob 630.

[0062] In other embodiments, the knob 630 may also be replaced by a driving member such as a rocker.

[0063] In this embodiment, an alignment plate 130 is movably provided on the bracket 100 , and the alignment plate 130 is used to support the piece to be punched. A fastener 140 is provided on the bracket 100 , and the fastener 140 is used to fix the alignment plate 130 to the bracket 100 .

[0064] The fastener 140 includes a bolt and a nut. The bolt passes through the bracket 100 and the alignment plate 130 at the same time. The nut cooperates with the bolt. When it is necessary to support the part to be punched, the nut is loosened and the alignment plate 130 is moved until it abuts against the part to be punched. Then the nut is tightened. The position of the alignment plate 130 is fixed, so as to play a better limiting role on the part to be punched.

[0065] In this embodiment, a buffer base 150 is provided at the bottom of the bracket 100 .

[0066] The cushioning base 150 is made of rubber, which has excellent anti-slip, wear-resistant, corrosion-resistant and support properties, thereby being able to better support the entire punch pliers 10. It is understood that in other embodiments, the cushioning base 150 can also be made of other materials as long as it can provide good support for the punch pliers 10.

[0067] In addition, the overall length of the punching pliers 10 is about 170 mm, and the volume is relatively small. At the same time, when the handle 500 is reset, the distance between the handle 500 and the base shell 900 is about 130 mm, which is convenient for one-handed grip; the maximum opening and closing angle between the handle 500 and the base shell 900 is about 39°, and the movement angle of the handle 500 is about 29°; the distance between the hinge point of the handle 500 and the rotating shaft 600 is about 20 mm, and the distance between the hinge point of the handle 500 and the tail end of the base shell 900 is about 140 mm.

[0068] The working principle of the punching pliers 10 provided in the embodiment of the present application at least includes: during the punching process, the knob 630 is rotated to rotate the rotating wheel 610. When the rotating wheel 610 rotates to an appropriate position, the second elastic member cooperates with the mating surface 611 corresponding to its own position to prevent the rotating wheel 610 from rotating, thereby replacing the cutter head 620 and keeping the cutter head 620 stable; then, the button 400 is pressed to disengage the elastic clip 300 from the slot, and then the button 400 is pushed toward the tail cover plate 800. When the movable plate 200 moves to After the appropriate position, the button 400 is moved downward until the elastic clip 300 is engaged with the other slot. At this time, the other first through hole 210 is aligned with the second through hole 110, and the hole changing action is completed; finally, the handle 500 is pressed, and the handle 500 drives the rotating wheel 610 and the cutter head 620 to move toward the movable plate 200 through the rotating shaft 600. The cutter head 620 passes through the second through hole 110 and the first through hole 210 and punches the part to be punched. After the punching is completed, the handle 500 is released, and the handle 500 will be reset under the elastic action of the third elastic member.

[0069] In summary, the embodiment of the present application provides a punching pliers 10. When it is necessary to change the hole, the first elastic member is first disengaged from the card slot, and then the movable plate 200 is moved along the length direction of the movable plate 200, so that the other first through hole 210 is moved to be aligned with the second through hole 110. At this time, the first elastic member is engaged with the card slot corresponding to its own position under its own elastic force, thereby positioning the movable plate 200 and quickly completing the hole changing action.

[0070] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A punching pliers, characterized in that: It includes a bracket, a movable plate and a positioning member. The movable plate is movably arranged on the bracket. In the moving direction of the movable plate, a plurality of first through holes are opened on the movable plate, and a plurality of positioning matching parts are provided on the movable plate. The positioning member is arranged on the bracket. The positioning member can selectively cooperate with any one of the positioning matching parts to position the movable plate.

2. The punching pliers according to claim 1, characterized in that The positioning member is a first elastic member, the positioning matching portion is a slot, and the first elastic member can selectively match with any one of the slots to position the movable plate.

3. The punching pliers according to claim 2, characterized in that: The punching pliers further include a button, the movable plate is inserted into the button, the button can move in a direction perpendicular to the movable plate, and the button can resist and push the first elastic member out of the slot during the movement.

4. The punching pliers according to claim 2, characterized in that: The punching pliers further include a tail cover plate and a base shell, wherein the tail cover plate is connected to the movable plate, the base shell is connected to the bracket, and a fourth elastic member is provided between the tail cover plate and the base shell.

5. The punching pliers according to claim 1, characterized in that: The punching pliers also include a handle, a first plate is provided on the bracket, the front end of the handle is hinged to the first plate, a first waist-shaped hole is provided on the first plate, and a second waist-shaped hole is provided on the handle. The punching pliers also include a rotating shaft, which is penetrated by the first waist-shaped hole and the second waist-shaped hole at the same time, and a rotating wheel is sleeved on the rotating shaft, and the rotating wheel is provided with multiple cutting heads at intervals along its own circumference, and the rotating wheel is provided with multiple mating surfaces at intervals along its own circumference. A second elastic member is provided on the first plate, and the second elastic member can cooperate with any of the mating surfaces to prevent the rotating wheel from rotating.

6. The punching pliers according to claim 5, characterized in that: The second elastic member is a torsion spring having a fixed end and a movable end. The fixed end is connected to the bracket, and the movable end can cooperate with any of the mating surfaces. A limiting screw is provided on the first plate, and the movable end is located between the rotating wheel and the limiting screw.

7. The punching pliers according to claim 5, characterized in that: A third elastic member is provided on the first plate, and the third elastic member is connected to the handle to reset the handle.

8. The punching pliers according to claim 5, characterized in that: One end of the rotating shaft is provided with a knob.

9. The punching pliers according to claim 1, characterized in that: An alignment plate is movably provided on the bracket, and the alignment plate is used to resist the piece to be punched. A fastener is provided on the bracket, and the fastener is used to fix the alignment plate to the bracket.

10. The punching pliers according to any one of claims 1 to 9, characterized in that: A buffer base is provided at the bottom of the bracket.

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