Quick hole changing type portable punching pliers

Abstract

The utility model relates to the technical field of punching tools, in particular to a pair of quick hole-changing type portable punching pliers. The quick hole-changing type portable punching clamp comprises a tool bit seat, a base, a lower pressing clamp and an upper pressing clamp. And the tool bit seat and the base are fixedly connected to one end of the lower pressing clamp. And a rotary tool bit disc is mounted on the tool bit seat. A plurality of tool bits are arranged in the circumferential direction of the rotary tool bit disc at intervals. And a rotating hole site disc is mounted on the base. A plurality of receding holes are formed in the rotating hole site disc in the circumferential direction. And the upper pressing clamp is in transmission connection with the rotary tool bit disc. The base is further provided with a first connecting piece. And a plurality of second connecting pieces are arranged on the rotating hole site disc. When the rotating hole site disc rotates, the second connecting pieces are sequentially close to the first connecting piece. The first connecting piece and the second connecting piece are connected to lock the rotating hole position disc. According to the quick hole changing type portable punching pliers, holes can be quickly and accurately changed, the punching stability and the hole changing gear hand feeling are improved, and punching is more labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of punching tools, in particular to a quick-hole-changing portable punching pliers. Background Art

[0002] Punch pliers are a tool used to punch holes in materials such as leather, paper, metal sheets and cloth.

[0003] The inventors have found through research that the existing punching pliers with interchangeable holes have very complicated operations for rotating and changing holes, and the hole changing positions are not accurate. Utility Model Content

[0004] The purpose of the utility model is to provide a portable punching pliers with quick hole-changing function, which can quickly and accurately change holes, improve the punching stability and the feel of the hole-changing gear.

[0005] The embodiment of the present utility model is achieved as follows:

[0006] The utility model provides a quick-change hole-punching pliers, comprising a cutter head seat, a base, a lower pressing pliers and an upper pressing pliers, the cutter head seat and the base are fixedly connected to one end of the lower pressing pliers, the cutter head seat and the base are arranged at intervals, the cutter head seat is equipped with a rotating cutter head disk, and the rotating cutter head disk is circumferentially spaced apart with a plurality of cutter heads, the base is equipped with a rotating hole position disk, and the rotating hole position disk is provided with a plurality of avoidance holes along the circumferential direction, and the avoidance holes correspond to the cutter heads one by one, the upper pressing pliers is transmission-connected with the rotating cutter head disk to drive the rotating cutter head disk close to the rotating hole position disk so that the cutter heads enter the corresponding avoidance holes, the base is also provided with a first connecting member, and the rotating hole position disk is provided with a plurality of second connecting members. When the rotating hole position disk rotates, the plurality of second connecting members successively approach the first connecting member, and the first connecting member is connected to the second connecting member to lock the rotating hole position disk.

[0007] In an optional embodiment, the first connecting member is an elastic bumper, and the second connecting member is a transposition groove, the transposition groove is arranged along the circumference and corresponds one-to-one to the avoidance hole, and a accommodating groove is provided on the base, the accommodating groove is used to accommodate the elastic bumper, and the elastic bumper can be compressed into the accommodating groove, or stretched to pop out of the accommodating groove and engage with the transposition groove.

[0008] In an optional embodiment, a ventilation hole is provided at the bottom of the accommodating groove.

[0009] In an optional embodiment, a through hole is further provided on the base, and the cutter head can pass through the avoidance hole and enter the through hole.

[0010] In an optional embodiment, the rotary aperture plate includes at least one edge extending out of the base.

[0011] In an optional embodiment, the upper pressure clamp is hinged to the cutter head seat, a slider is also fixedly provided on the rotating cutter head disk, a first slide rail is provided on the cutter head seat, and the direction of the first slide rail is set toward or away from the rotating hole disk, and the upper pressure clamp is transmission-connected to the slider for driving the slider to move along the first slide rail.

[0012] In an optional embodiment, the upper pressing clamp is further provided with a second slide rail, and the slider is in sliding engagement with the second slide rail.

[0013] In an optional embodiment, the rotating cutter head disc further includes a rotating shaft, which is rotatably disposed on the cutter head seat, and one end of the rotating shaft is connected to a knob.

[0014] In an optional embodiment, an elastic member is further provided in the cutter head seat, and two ends of the elastic member are respectively connected to the upper pressure clamp and the cutter head seat.

[0015] In an optional embodiment, the elastic member is a torsion spring, which is sleeved on the hinge shaft of the upper pressure clamp and the cutter head seat, one end of the torsion spring is fixedly connected to the cutter head seat, and the other end of the torsion spring is provided with a crank arm. The cutter head seat is also provided with a third slide rail, and the upper pressure clamp is also provided with a fourth slide rail. The crank arm passes through the third slide rail and the fourth slide rail in sequence, and slides with the third slide rail and the fourth slide rail.

[0016] The beneficial effects of the embodiments of the present utility model are:

[0017] This portable, quick-change hole punch features a first connector within the base that mates with a second connector on a rotating hole-positioning disk. As the rotating hole-positioning disk rotates, multiple second connectors sequentially rotate to the position of the first connector. When the rotating hole-positioning disk is in place, the first connector connects with the second connector, enabling quick and accurate hole-changing, improving punching stability and the feel of the hole-changing position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention 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 paying any creative work.

[0019] Figure 1A schematic structural diagram of a first-view perspective of a portable quick-hole-changing punching pliers in a first state provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the second state structure of the quick-hole-changing portable punching pliers provided by an embodiment of the present utility model;

[0021] Figure 3 A cross-sectional view of a portable quick-change punching pliers according to an embodiment of the present invention;

[0022] Figure 4 A schematic structural diagram of a portable quick-hole-changing punching pliers according to an embodiment of the present invention in a first state from a second perspective;

[0023] Figure 5 for Figure 4 Enlarged view of part A in the middle.

[0024] Icon: 100-Quick-change portable punching pliers; 10-Cutter head holder; 11-Rotating cutter head disk; 111-Cutter head; 112-Rotating shaft; 113-Knob; 114-Slider; 13-First slide rail; 14-Third slide rail; 15-Torsion spring; 151-Crank arm; 20-Base; 21-Rotating hole disk; 211-Avoidance hole; 212-Transposition groove; 22-Elastic bumper; 23-Accommodation groove; 24-Ventilation hole; 25-Through hole; 30-Lower pressure clamp; 40-Upper pressure clamp; 41-Second slide rail; 42-Fourth slide rail. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention 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 invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[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 utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0030] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] Please refer to Figure 1 The present embodiment provides a quick-change portable punching pliers 100 , which includes a cutter head holder 10 , a base 20 , a lower pressing pliers 30 and an upper pressing pliers 40 .

[0032] The cutter head seat 10 and the base 20 are respectively fixedly connected to one end of the lower pressing clamp 30. The cutter head seat 10 and the base 20 are arranged at intervals. It is understandable that the object that needs to be punched is inserted into the gap between the cutter head seat 10 and the base 20 to punch.

[0033] A rotating cutter head disc 11 is mounted on the cutter head seat 10. A plurality of cutter heads 111 are arranged at circumferential intervals on the rotating cutter head disc 11. Specifically, the plurality of cutter heads 111 face in various directions from the center of the rotating cutter head disc 11. A cavity is provided inside the cutter head seat 10, and the rotating cutter head disc 11 and the cutter heads 111 can rotate within the cavity of the cutter head seat 10. It is understood that the sizes of the various cutter heads 111 on the rotating cutter head disc 11 are different. When the rotating cutter head disc 11 is rotated, the appropriate cutter head 111 can be selected to align with the base 20 for drilling.

[0034] A rotating hole disk 21 is mounted on the base 20. A plurality of avoidance holes 211 are provided on the rotating hole disk 21 along the circumferential direction. It can be understood that the avoidance holes 211 are arranged in an array around the rotation center circumference of the rotating hole disk 21. The avoidance holes 211 correspond one-to-one with the cutter heads 111. Specifically, the rotation axes of the rotating cutter head disk 11 and the rotating hole disk 21 are perpendicular so that the cutter head 111 can be set toward the avoidance holes 211. The shape and size of the avoidance holes 211 correspond one-to-one with the shape and size of the cutter head 111. After rotating the rotating cutter head disk 11 to select a suitable cutter head 111 to face the rotating hole disk 21, the rotating hole disk 21 is rotated again so that the avoidance holes 211 are arranged relative to the cutter head 111.

[0035] Optionally, in this embodiment, the number of the cutter heads 111 is six, and they are cylindrical, and the diameter gradually increases along the circumference of the rotating cutter head disk 11. Correspondingly, the number of the avoidance holes 211 is also six, and they are all circular holes, and the diameter gradually increases along the circumferential direction. In other embodiments, the number of the cutter heads 111 can be set to five, seven, or other numbers, and the shape of the cutter heads 111 can also be set to other shapes, such as square, polygonal, or other shapes. The avoidance holes 211 can also be set to other numbers or other shapes. As long as the number and shape of the cutter heads 111 can correspond to the number and shape of the avoidance holes 211, the present invention does not impose any restrictions.

[0036] Please refer to Figure 1 and Figure 2 . In this embodiment, the upper pressure clamp 40 is hinged to the cutter head seat 10. Specifically, the upper pressure clamp 40 is hinged to one end of the cutter head seat 10 away from the lower pressure clamp 30, so that the rotation fulcrum of the upper pressure clamp 40 and the lower pressure clamp 30 is located at the end. The upper pressure clamp 40 is connected to the rotating cutter head disk 11 by transmission to drive the rotating cutter head disk 11 to move close to the rotating hole disk 21 so that the cutter head 111 enters the avoidance hole 211. It can be understood that the operator holds the upper pressure clamp 40 and the lower pressure clamp 30 by hand, and uses force to make the upper pressure clamp 40 close to the lower pressure clamp 30 so that the cutter head 111 moves toward the rotating hole disk 21 and enters the avoidance hole 211, completing the punching of the object between the cutter head seat 10 and the rotating hole disk 21. Since the quick-change portable punching pliers 100 in this embodiment adopts the lever principle, the rotation fulcrum is set at the end of the upper pressure clamp 40 and the lower pressure clamp 30, the force arm is lengthened, so that punching is more labor-saving.

[0037] Optionally, in other embodiments, the upper pressing clamp 40 may be hinged to the end of the lower pressing clamp 30 or to the base 20 , as long as the upper pressing clamp 40 can drive the rotating cutter head disk 11 to move.

[0038] In this embodiment, both the upper pressing clamp 40 and the lower pressing clamp 30 are provided with arc-shaped handles to improve the operator's grip feel.

[0039] Please refer to Figure 3 . A first connecting member is also provided on the base 20. A second connecting member is provided on the rotating hole disk 21. A plurality of second connecting members are provided on the side of the rotating hole disk 21 close to the base 20. When the rotating hole disk 21 rotates, the plurality of second connecting members approach the first connecting member in turn. Specifically, the second connecting member rotates relative to the first connecting member, and the plurality of second connecting members move to the position of the first connecting member in turn to cooperate with the first connecting member. The first connecting member is connected to the second connecting member to lock the rotating hole disk. When one of the second connecting members moves to the first connecting member, the first connecting member can be connected to the second connecting member to fix the rotating hole disk 21 relative to the base. It can be understood that when it is necessary to continue to rotate the rotating hole disk 21, the force of rotating the rotating hole disk 21 should cause the first connecting member and the second connecting member to disconnect to switch the rotation gear of the rotating hole disk 21.

[0040] In this embodiment, the first connecting member is an elastic ball 22. The second connecting member is a transposition groove 212. A plurality of transposition grooves 212 are provided on the side of the rotating hole disk 21 close to the base 20. The transposition grooves 212 are arranged along the circumference and correspond one-to-one with the avoidance holes 211. The elastic ball 22 can engage with the transposition groove 212. It is understandable that the elastic ball 22 can be ejected or retracted relative to the base 20. The number of transposition grooves 212 is the same as the number of avoidance holes 211, and the spacing angle between the transposition grooves 212 is the same as the spacing angle between the avoidance holes 211. Since the avoidance holes 211 in this embodiment are arranged around the rotation center circumference of the rotating hole disk 21, and the transposition grooves 212 are arranged around the rotation center circumference of the rotating hole disk 21, when the rotating hole disk 21 rotates a certain angle, the rotation angle of the corresponding avoidance hole 211 is the same as the rotation angle of the transposition groove 212. When the rotating hole disk 21 is rotated to a preset position, that is, the cutter head 111 and the avoidance hole 211 are arranged opposite each other, the transposition groove 212 is exactly located at the position of the elastic contact ball 22, and the elastic contact ball 22 pops out of the base 20 and engages with the transposition groove 212. This prevents the rotating hole disk 21 from rotating excessively, enables fast and accurate hole changing, and improves the hole changing feel.

[0041] In this embodiment, the avoidance hole 211 and the corresponding transposition groove 212 are arranged in the same radial direction of the rotating hole disk 21. The avoidance hole 211 is close to the rotation center of the rotating hole disk 21, while the transposition groove 212 is far away from the rotation center of the rotating hole disk 21. In other embodiments, the avoidance hole 211 and the corresponding transposition groove 212 can be staggered, that is, the avoidance hole 211 and the corresponding transposition groove 212 can be located at different radial directions of the rotating hole disk 21. The avoidance hole 211 can also be further away from the rotation center of the rotating hole disk 21 than the transposition groove 212, but this is not limited in the present invention.

[0042] Specifically, a receiving groove 23 is provided on the base 20. The receiving groove 23 is used to accommodate the elastic bump ball 22. The elastic bump ball 22 can be compressed into the receiving groove 23, or stretched to pop out of the receiving groove 23 and engage with the transposition groove 212. It can be understood that the receiving groove 23 is fixed on the base 20, and the rotating transposition disk above rotates to move different transposition grooves 212 to the top of the receiving groove 23. When the rotating transposition disk is rotated, the rotating transposition disk presses the elastic bump ball 22 into the receiving groove 23. When the transposition groove 212 moves to the top of the receiving groove 23, the elastic bump ball 22 pops up and engages with the transposition groove 212. At this time, greater force is required to rotate the rotating transposition disk, which can effectively improve the feel of switching hole positions.

[0043] Furthermore, a vent hole 24 is provided at the bottom of the accommodating groove 23 to balance the air pressure in the accommodating groove 23 and ensure that the elastic bump ball 22 can work normally.

[0044] Furthermore, a through hole 25 is provided on the base 20. The cutter head 111 can pass through the avoidance hole 211 and enter the through hole 25. This prevents the cutter head 111 from moving too much and contacting the base 20 to damage the cutter head 111.

[0045] Please refer to Figure 1 . The rotating hole disk 21 includes at least one edge extending from the base 20. It is understandable that when the operator rotates the rotating hole disk 21, he can contact the edge of the rotating hole disk 21, so that the rotating hole disk 21 rotates relative to the base 20. Specifically, in the present embodiment, both ends of the rotating hole disk 21 extend out of the edge of the base 20, and the operator can hold the rotating hole disk 21 to rotate it. Optionally, in the present embodiment, the rotating hole disk 21 is hexagonal, and the distance between the opposite sides of the rotating hole disk 21 is greater than the width of the base 20. In other embodiments, the rotating hole disk 21 may be circular or other shapes. When the rotating hole disk 21 is circular, the diameter of the rotating hole disk 21 is greater than the width of the base 20. As long as it is convenient for the operator to rotate the rotating hole disk 21, the utility model does not limit the shape of the rotating hole disk 21.

[0046] A slider 114 is also fixedly mounted on the rotating cutter head disk 11. A first slide rail 13 is provided on the cutter head base 10. The first slide rail 13 is oriented toward or away from the rotating aperture disk 21. The upper pressure clamp 40 is in driving connection with the slider 114, driving the slider 114 along the first slide rail 13. Specifically, the first slide rail 13 is a strip-shaped groove, through which the slider 114 of the rotating cutter head disk 11 extends out of the cutter head base 10.

[0047] Furthermore, the upper pressure clamp 40 is also provided with a second slide rail 41. The slider 114 and the second slide rail 41 are slidably matched. Specifically, the second slide rail 41 is also a strip-shaped groove. The slider 114 is arranged through the first slide rail 13 and the second slide rail 41 in sequence. Optionally, in this embodiment, the slider 114 is arranged at the rotation center of the rotating cutter head disk 11. In other embodiments, the slider 114 can also be arranged at other positions of the rotating cutter head disk 11, as long as it can be ensured that the upper pressure clamp 40 can drive the rotating cutter head disk 11 and the cutter head 111 to move, the utility model does not make any limitation.

[0048] Please refer to Figure 4 In order to facilitate the switching of the cutter head 111, the rotating cutter head disk 11 also includes a rotating shaft 112. The rotating shaft 112 is rotatably set on the cutter head seat 10. One end of the rotating shaft 112 is connected to a knob 113. Specifically, the rotating shaft 112 extends out of the cutter head seat 10, and one end of the rotating shaft 112 is fixedly connected to the knob 113, and the rotating cutter head disk 11 is driven to rotate by rotating the knob 113. Furthermore, a cutter head 111 signal mark is also provided on the knob 113, such as a marked size and shape mark, etc., to facilitate the operator to select a suitable cutter head 111. Correspondingly, a hole position signal mark is also provided on the rotating hole position disk 21 at the position corresponding to the avoidance hole 211, which is used to mark the size and shape information of the avoidance hole 211.

[0049] Please refer to Figure 1 、 Figure 4 and Figure 5 An elastic member is also provided in the cutter head holder 10. The two ends of the elastic member are connected to the upper pressing clamp 40 and the cutter head holder 10, respectively, to provide a restoring force to the upper pressing clamp 40. When drilling is completed, the upper pressing clamp 40 can be moved away from the lower pressing clamp 30 under the action of the elastic member, removing the cutter head 111 from the avoidance hole 211.

[0050] In this embodiment, the elastic member is a torsion spring 15. The torsion spring 15 is sleeved on the hinge shaft of the upper pressure clamp 40 and the cutter head seat 10. One end of the torsion spring 15 is fixedly connected to the cutter head seat 10, and the other end of the torsion spring 15 is provided with a crank arm 151. A third slide rail 14 is also provided on the cutter head seat 10. A fourth slide rail 42 is also provided on the upper pressure clamp 40. The crank arm 151 passes through the third slide rail 14 and the fourth slide rail 42 in sequence, and slides with the third slide rail 14 and the fourth slide rail 42. Specifically, the third slide rail 14 is an arc-shaped slide groove, and the center of the third slide rail 14 is located at the hinge point of the upper pressure clamp 40 and the cutter head seat 10.

[0051] The quick-change portable punching pliers 100 provided in this embodiment have the following beneficial effects:

[0052] The portable quick-change hole punch 100 of the present invention is provided with an elastic bump 22 in the base 20, and the elastic bump 22 cooperates with the shifting groove 212 of the rotating hole position disk 21. When the rotating hole position disk 21 is rotated into place, the shifting groove 212 abuts against the elastic bump 22, so that the hole can be changed quickly and accurately, improving the drilling stability and the hole-changing gear feel.

[0053] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A quick-change portable punching pliers, characterized in that: The cam is provided with a plurality of second connecting members, and the plurality of second connecting members are connected to the cam at the bottom end of the cam, and the plurality of second connecting members are connected to the cam at the bottom end of the cam.

2. The quick-change portable punching pliers according to claim 1, characterized in that: The first connecting member is an elastic bumper, and the second connecting member is a transposition groove. The transposition groove is arranged along the circumference and corresponds one-to-one to the avoidance hole. A accommodating groove is provided on the base, and the accommodating groove is used to accommodate the elastic bumper. The elastic bumper can be compressed into the accommodating groove, or stretched to pop out of the accommodating groove and engage with the transposition groove.

3. The quick-change portable punching pliers according to claim 2, characterized in that: The bottom of the accommodating tank is provided with an air hole.

4. The quick-change portable punching pliers according to claim 1, characterized in that: The base is also provided with a through hole, and the cutter head can pass through the avoidance hole and enter the through hole.

5. The quick-change portable punching pliers according to claim 1, characterized in that: The rotary aperture plate includes at least one edge extending outward from the base.

6. The quick-change portable punching pliers according to claim 1, characterized in that: The upper pressure clamp is hinged to the cutter head seat, and a slider is fixedly provided on the rotating cutter head disk. A first slide rail is provided on the cutter head seat, and the direction of the first slide rail is set toward or away from the rotating hole disk. The upper pressure clamp is transmission-connected to the slider for driving the slider to move along the first slide rail.

7. The quick-change portable punching pliers according to claim 6, characterized in that: The upper pressing clamp is also provided with a second slide rail, and the sliding block is slidably matched with the second slide rail.

8. The quick-change portable punching pliers according to claim 1, characterized in that: The rotary cutter head disc further comprises a rotating shaft, which is rotatably arranged on the cutter head seat, and one end of the rotating shaft is connected to a knob.

9. The quick-change portable punching pliers according to claim 1, characterized in that: An elastic member is further provided in the cutter head seat, and two ends of the elastic member are respectively connected to the upper pressing clamp and the cutter head seat.

10. The quick-change portable punching pliers according to claim 9, characterized in that: The elastic member is a torsion spring, which is sleeved on the hinge shaft of the upper pressure clamp and the cutter head seat. One end of the torsion spring is fixedly connected to the cutter head seat, and the other end of the torsion spring is provided with a crank arm. The cutter head seat is also provided with a third slide rail, and the upper pressure clamp is also provided with a fourth slide rail. The crank arm passes through the third slide rail and the fourth slide rail in sequence, and slides with the third slide rail and the fourth slide rail.

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