Single-hole punching machine

Abstract

The utility model provides a single-hole perforating machine, which belongs to the technical field of perforating machines, and comprises a fixing shell, the cross section of the fixing shell is of a [-shaped structure, a limiting seat is arranged at the top of the fixing shell, a perforating assembly is arranged above the fixing shell, the perforating assembly is used for perforating paper, the perforating assembly comprises a fixing seat, and the fixing seat is arranged on the fixing shell. The fixing base is installed at the top of the limiting base, a rotating rod is rotatably installed at the top of the fixing base in a penetrating mode, a clamping opening is formed in the surface of the side wall of the fixing base, a limiting opening is formed in the top of the fixing base, penetrating openings are formed in the surfaces of the fixing base and the fixing shell, and a limiting piece is arranged in the fixing base. A punching rod is installed in the limiting piece in a sliding and penetrating mode, and a first reset spring is installed outside the punching rod in a sleeving mode. According to the punching machine, the punching assembly is arranged, paper can be punched in a labor-saving mode, meanwhile, the pressing handle and the lower handle can be locked together, the overall size of the punching machine is reduced, and the punching machine is convenient to carry.

Description

Technical Field

[0001] This utility model relates to the field of drilling machine technology, and in particular to a single-hole drilling machine. Background Technology

[0002] Hole punchers, as a common processing tool, are widely used in office supplies, packaging, leather goods, and industrial manufacturing, primarily for quickly creating through holes in materials such as paper, plastics, and fabrics. Traditional hole punchers are mainly divided into two categories: manual and electric. Manual hole punchers typically rely on the lever principle, using manual pressure to drive the punch and complete the punching operation.

[0003] The prior art, disclosed in publication number CN219006295U, discloses a handheld single-hole punch, which "includes an upper handle, a lower handle, a blade holder, and a base, wherein the blade holder is provided with a hollow blade with a through hole in the middle, the base is provided with a blade pad that can rotate in the horizontal plane, the hollow blade is located above the blade pad, the blade holder is also fitted with a blade holder sleeve, the upper handle and the blade holder sleeve are connected by an elastic member, both the blade holder sleeve and the blade holder are provided with a top through hole for the hollow blade to pass through, and both the blade holder sleeve and the blade holder are provided with side through holes for the placement screw to pass through";

[0004] The aforementioned handheld puncher exhibits poor material positioning during operation, leading to easy displacement of the punching position. This is particularly problematic with soft or thin materials, where positioning stability is insufficient. Furthermore, it lacks a reliable locking mechanism when not in use, allowing the punch and moving parts to move freely due to external forces or equipment movement. This not only poses safety hazards but may also cause collisions and wear to critical components. Especially in scenarios involving frequent carrying or storage, the loose structure can reduce equipment reliability and consume additional space. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes a single-hole punching machine, which more accurately solves the problems of poor punching positioning, safety hazards, and inconvenience of existing punching machines.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model proposes a single-hole punching machine, including a fixed shell. The fixed shell has a cross-section with an inverted shape. A limiting seat is installed on the top of the fixed shell. A punching component is arranged above the fixed shell. The punching component is used to punch holes in paper.

[0008] Furthermore, the surface of the fixed shell has multiple sets of latches, a lower shell is provided below the fixed shell, a lower handle is installed at the bottom of the lower shell, and multiple sets of fixing protrusions are symmetrically arranged on the inner wall of the lower shell.

[0009] Furthermore, the bayonet is provided in correspondence with the fixed protrusion, the lower handle has an arc-shaped structure, and there is a cavity between the lower housing and the fixed housing.

[0010] Furthermore, the drilling assembly includes a fixing seat, which is installed on the top of the limiting seat. A rotating rod is rotatably installed on the top of the fixing seat. A locking opening is provided on the side wall surface of the fixing seat. A limiting opening is provided on the top of the fixing seat. Through openings are provided on both the surface of the fixing seat and the surface of the fixing shell. A limiting piece is provided inside the fixing seat.

[0011] Furthermore, the fixed seat has a U-shaped cross-section, and notches are provided on both sides of the limiting seat.

[0012] Furthermore, a punching rod is slidably installed inside the limiting piece, a first return spring is sleeved on the outside of the punching rod, a lower pressure seat is sleeved on the outside of the punching rod, a fixing rod is installed through the top of the lower pressure seat, and an upper handle is sleeved on the outside of the fixing rod and the rotating rod.

[0013] Furthermore, the punching rod is correspondingly arranged with the through hole, the bottom cross-section of the punching rod has an inverted V-shaped structure, the first reset spring is located between the fixed seat and the lower pressure seat, and the cross-section of the lower pressure seat has an inverted V-shaped structure.

[0014] Furthermore, a locking rod is installed through the side wall of the lower pressure seat. The locking rod has an I-shaped cross-section. A second return spring is sleeved on the outside of the locking rod. The second return spring is located between the end of the locking rod and the inner wall of the upper handle. The locking rod is correspondingly arranged with the locking hole. A pressing handle is sleeved on the outside of the upper handle. A silicone soft sleeve is provided at the end of the pressing handle.

[0015] The beneficial effects of this utility model are:

[0016] This utility model proposes a single-hole punch, which, with the arrangement of a fixed shell, a lower shell, a bayonet, and a fixing protrusion, facilitates the assembly and disassembly of the fixed shell and the lower shell, thereby facilitating the collection and processing of debris generated during paper punching. With the arrangement of a fixed base, a lower handle, an upper handle, a pressing handle, a limiting piece, a lower pressing base, a punching rod, a through-hole, a rotating rod, and a fixing rod, the lever-type structure is lightweight and labor-saving, enabling efficient and labor-saving punching of paper.

[0017] With the first return spring, locking rod, locking port, and second return spring, the pressing handle and the lower handle can be locked together, reducing the overall size of the punch and making it easier to carry. At the same time, it avoids collision and wear of key components, reducing safety hazards when carrying the punch. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the locking state structure of this utility model;

[0020] Figure 3 This is an exploded view of the entire utility model;

[0021] Figure 4 This is an exploded view of the locked state of this utility model;

[0022] Figure 5 This is a schematic diagram of the fixing base structure of this utility model.

[0023] The attached figures are labeled as follows:

[0024] In the diagram: 1. Fixed shell; 2. Limiting seat; 3. Bayonet; 4. Lower shell; 5. Lower handle; 6. Fixed protrusion; 7. Fixed seat; 8. Rotating rod; 9. Locking port; 10. Limiting port; 11. Through port; 12. Limiting piece; 13. Drilling rod; 14. First return spring; 15. Lower pressure seat; 16. Fixed rod; 17. Upper handle; 18. Locking rod; 19. Second return spring; 20. Press handle. Detailed Implementation

[0025] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will provide further details.

[0026] Please refer to Figures 1-5 This utility model proposes a single-hole punching machine, including a fixed shell 1. The fixed shell 1 has a U-shaped cross-section. A limiting seat 2 is installed on the top of the fixed shell 1 to limit the end of the paper and simultaneously create a gap between the fixing seat 7 and the fixed shell 1 for placing the paper. A punching assembly is provided above the fixed shell 1 for punching holes in the paper. Multiple sets of latches 3 are formed on the surface of the fixed shell 1. A lower shell 4 is provided below the fixed shell 1, and a lower handle 5 is installed at the bottom of the lower shell 4 for easy gripping of the punching machine by the user. This design facilitates easy assembly and disassembly of the lower housing 4. Multiple sets of fixing protrusions 6 are symmetrically arranged on the inner wall of the lower housing 4. The latch 3 corresponds to the fixing protrusions 6. The lower handle 5 has an arc-shaped structure. A cavity exists between the lower housing 4 and the fixed housing 1. With the lower housing 4 and the fixed housing 1 in place, paper scraps generated during punching fall into the cavity through the through-hole 11, allowing for scrap collection and preventing the scraps from flying. The latch 3 and fixing protrusions 6 also allow for easy assembly and disassembly of the lower housing 4 and the fixed housing 1, facilitating the handling of the scraps generated during punching.

[0027] The drilling assembly includes a fixing base 7, which is mounted on top of the limiting base 2. A rotating rod 8 is rotatably mounted on the top of the fixing base 7 to ensure the rotation of the upper handle 17 and the pressing handle 20. A locking slot 9 is provided on the side wall surface of the fixing base 7 for subsequent locking between the upper handle 17 and the lower handle 5. A limiting opening 10 is provided on the top of the fixing base 7 to limit the fixing rod 16. Both the fixing base 7 and the fixing shell 1 have through openings 11 for limiting and guiding the drilling rod 13. A limiting piece 12 is provided inside the fixing base 7 to limit the drilling rod 13 and ensure the vertical movement of the drilling rod 13. The fixing base 7 has a U-shaped cross-section. The limiting base 2 has openings on both sides. A notch is provided to ensure the downward movement of the lower pressure seat 15 and the punching rod 13. The lower pressure seat 15 and the fixed seat 7 are locked together. The punching rod 13 is slidably installed inside the limiting piece 12 for punching holes in the paper. A first return spring 14 is sleeved on the outside of the punching rod 13 for resetting the lower pressure seat 15, the upper handle 17, and the pressing handle 20. The lower pressure seat 15 is sleeved on the outside of the punching rod 13. A fixing rod 16 is installed through the top of the lower pressure seat 15 for limiting the connection between the upper handle 17 and the lower pressure seat 15. The upper handle 17 is sleeved on the outside of the fixing rod 16 and the rotating rod 8. The punching rod 13 is correspondingly positioned to the through opening 11. The bottom cross-section of the punching rod 13 has an inverted V-shaped structure, which facilitates... For rapid paper punching, the first return spring 14 is located between the fixed base 7 and the lower pressure base 15. The lower pressure base 15 has a U-shaped cross-section, and a locking rod 18 is installed through the side wall of the lower pressure base 15 for locking the upper handle 17 and the lower handle 5. The locking rod 18 has an I-shaped cross-section, and a second return spring 19 is sleeved on the outside of the locking rod 18. The second return spring 19 is located between the end of the locking rod 18 and the inner wall of the upper handle 17. The locking rod 18 is correspondingly arranged with the locking port 9. A pressing handle 20 is sleeved on the outside of the upper handle 17, and a silicone soft sleeve is provided at the end of the pressing handle 20. When punching is required, the user places the paper between the fixed shell 1 and the fixed base 7. Then, grasp the pressing handle 20 and the lower handle 5 and squeeze them together. The downward pressure of the pressing handle 20 causes the upper handle 17 to press down, which in turn causes the lower pressure seat 15 to press down. The downward pressure of the lower pressure seat 15 causes the punching rod 13 to press down and compress the first return spring 14. With the cooperation of the fixed seat 7 and the fixed shell 1, the paper is punched. The lever structure is lightweight and labor-saving. When the puncher needs to be carried or stored, the user presses the pressing handle 20 down to compress the first return spring 14. At the same time, the locking rod 18 moves to the side of the locking port 9. Then, the user presses the locking rod 18 inward to lock it into the locking port 9. Finally, the user releases the pressing handle 20. At this time, the second return spring 19 is in a compressed state.The reset force of the second reset spring 19 and the reset force of the first reset spring 14 mutually restrain each other, causing the pressing handle 20 and the lower handle 5 to lock together. This reduces the overall size of the puncher, making it easier to carry, and at the same time avoids collision and wear of key components, reducing safety hazards when carrying the puncher.

[0028] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A single-hole punching machine, characterized in that, The device includes a fixed shell, the fixed shell having a U-shaped cross-section, a limiting seat installed on the top of the fixed shell, and a punching assembly provided above the fixed shell for punching holes in the paper. The drilling assembly includes a fixing seat, which is installed on the top of the limiting seat. A rotating rod is rotatably installed on the top of the fixing seat. A locking opening is provided on the side wall surface of the fixing seat. A limiting opening is provided on the top of the fixing seat. Through openings are provided on both the surface of the fixing seat and the surface of the fixing shell. A limiting piece is provided inside the fixing seat. A punching rod is slidably installed inside the limiting piece. A first return spring is sleeved on the outside of the punching rod. A lower pressure seat is sleeved on the outside of the punching rod. A fixing rod is installed through the top of the lower pressure seat. An upper handle is sleeved on the outside of the fixing rod and the rotating rod. A locking rod is installed through the side wall of the lower pressure seat. The locking rod has an I-shaped cross-section. A second return spring is sleeved on the outside of the locking rod. The second return spring is located between the end of the locking rod and the inner wall of the upper handle. The locking rod is correspondingly set with the locking hole. A pressing handle is sleeved on the outside of the upper handle. A silicone soft sleeve is provided at the end of the pressing handle.

2. A single-hole punching machine according to claim 1, characterized in that, The surface of the fixed shell has multiple sets of latches, and a lower shell is provided below the fixed shell. A lower handle is installed at the bottom of the lower shell, and multiple sets of fixing protrusions are symmetrically arranged on the inner wall of the lower shell.

3. A single-hole punching machine according to claim 2, characterized in that, The bayonet is provided corresponding to the fixed protrusion, the lower handle has an arc-shaped structure, and there is a cavity between the lower shell and the fixed shell.

4. A single-hole punching machine according to claim 1, characterized in that, The fixed seat has an inverted cross-section and notches are provided on both sides of the limiting seat.

5. A single-hole punching machine according to claim 1, characterized in that, The punching rod is positioned corresponding to the through-hole, and the bottom cross-section of the punching rod has an inverted V-shaped structure. The first reset spring is located between the fixed seat and the lower pressure seat, and the cross-section of the lower pressure seat has an inverted V-shaped structure.

Images