Puncher

Abstract

The puncher comprises a base, a punch assembly is movably installed on the base, a locking mechanism is installed between the punch assembly and the base, the locking mechanism comprises a connecting piece and a locking piece, the punch assembly is connected with the base through the connecting piece, the locking piece is rotationally installed on the connecting piece, and the connecting piece is connected with the base through the locking piece. The puncher is characterized in that the puncher pin assembly is provided with a limiting part matched with the locking piece, the locking piece is connected with the limiting part through rotation so that the puncher pin assembly can be movably locked, the locking piece is separated from the limiting part through reverse rotation so that the puncher pin assembly can be movably unlocked, and the puncher is limited on the base through the locking mechanism. A user only needs to rotate the locking piece back and forth to enable the punch assembly to be movably locked or unlocked, use is convenient and labor-saving, and the locking mechanism is simple and reliable in structure.

Description

Technical Field

[0001] This application relates to the field of office supplies technology, and more specifically to a hole punch. Background Technology

[0002] Hole punches are widely used to punch holes in paper pages so that the perforated pages can be stored in binders. Traditional hole punches consist of one or more punches. Users apply force to the handle to drive the punches to punch holes in the paper pages. The positions of the punches on the hole puncher are fixed, and the distance between multiple punches cannot be adjusted, making it difficult to adjust the distance between holes on the paper pages according to actual needs. To address the aforementioned issues, a utility model patent with authorization announcement number CN220882628U discloses a movable punching machine with a knife set capable of punching multiple paper sizes. The machine includes a punching body, a base, movable seats, and a lower pressure plate. The punching body has multiple guide grooves. The base is snapped onto the lower end face of the punching body. The end face of the base has a scale line component. Multiple movable seats are slidably connected to the punching body via multiple guide grooves, and each movable seat has multiple punching blades. The lower pressure plate is hinged to the punching body and has a pressing flange that abuts against the multiple punching blades. In this technical solution, the movable seats are slidably connected within the guide grooves, and multiple punching blades (punches) are mounted on the movable seats. The position of the punching blades can be adjusted by sliding. However, the movable seats cannot be locked after sliding, meaning the position of the punching blades cannot be locked. The movable seats easily cause the punching blades to shift, affecting punching efficiency. Some punches use screws to fix the punch head, requiring the screws to be loosened, the punch head to be moved to another suitable position, and then the screws to be tightened again for each adjustment. This is cumbersome and inconvenient to use. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide a punch that is limited on the base by a locking mechanism. The user only needs to rotate the locking part back and forth to lock or unlock the punch assembly. It is convenient and labor-saving to use, and the locking mechanism has a simple and reliable structure.

[0004] This application provides a puncher, including a base, on which a punch assembly is movably mounted. A locking mechanism is installed between the punch assembly and the base. The locking mechanism includes a connector and a locking member. The punch assembly and the base are connected via the connector. The locking member is rotatably mounted on the connector. The punch assembly is provided with a limiting part adapted to the locking member. The locking member engages with the limiting part by rotation to lock the punch assembly. The locking member disengages from the limiting part by reverse rotation to unlock the punch assembly.

[0005] In this technical solution, the punch assembly is movably mounted on the base. The punch assembly adjusts its drilling position by moving on the base. A locking mechanism is provided between the punch assembly and the base. After the punch assembly moves to its correct position, it is limited to the base by the locking mechanism to prevent displacement and ensure the drilling effect. The locking mechanism includes a connector and a locking element. The connector passes through the base and the punch assembly and connects to the locking element, thereby clamping the base and the punch assembly between them. The punch assembly has a limiting part that cooperates with the locking element. The locking element is rotatably mounted on the connector. When drilling is required, the punch assembly on the base is first moved into position, and the user applies force to the locking element to lock it in place. The fastener connects and fits tightly with the limiting part through rotation, thereby clamping and limiting the base and punch assembly. The punch assembly is locked relative to the base, preventing it from moving on the base and ensuring the accuracy and reliability of drilling. When the position of the punch assembly needs to be adjusted, the user applies force to the locking part, causing it to disengage from the limiting part by rotating in the opposite direction. This creates a gap between the base and the punch assembly, unlocking the punch assembly relative to the base. The user can then move the punch assembly on the base to adjust the drilling position. The user only needs to rotate the locking part back and forth to lock or unlock the punch, making it convenient and labor-saving to use. The locking mechanism is also simple and reliable.

[0006] As an improvement, the base is provided with a first slide rail adapted to the connector, and the connector is slidably connected to the first slide rail so that the punch assembly can slide back and forth on the base. In this technical solution, the first slide rail on the base allows the connector to slide, and the connector adjusts the punching position of the punch assembly by sliding back and forth within the first slide rail. The sliding adjustment method is simple and labor-saving. On the other hand, the base is provided with a second slide rail adapted to the punching assembly, and the punching assembly is slidably mounted on the second slide rail. The cooperation between the first and second slide rails makes the sliding of the punching assembly more efficient and reliable.

[0007] As an improvement, this application provides a specific mating structure between a locking member and a limiting part. The locking member has a guide slope at its bottom. When the locking member rotates under force, it is tightly fitted with the limiting part via the guide slope, thereby locking the punch assembly. In this technical solution, the guide slope at the bottom of the locking member allows it to connect and tightly fit with the limiting part through the guiding action of the guide slope when rotating. This clamps and limits the base and the punch assembly, locking the punch assembly relative to the base. The guide slope makes the rotation locking and unlocking methods simpler and less strenuous.

[0008] As an improvement, this application can provide another specific cooperation structure between the locking member and the limiting part, wherein the limiting part is a protruding structure provided on the punch assembly, and the limiting part and the bottom of the locking member are tightly fitted by rotation to make the punch assembly movable and locked. In this technical solution, the limiting part is a protruding structure, and the locking member is connected and tightly fitted to the limiting part of the protruding structure by rotation, thereby clamping and limiting the base and the punch assembly, and the punch assembly is movable and locked relative to the base, making the locking more reliable; on the other hand, the guide slope can also be provided on the protruding structure of the limiting part, making the rotation of the locking member less strenuous.

[0009] As an improvement, this application can also provide another specific cooperation structure between the locking member and the limiting part, wherein the bottom of the locking member is provided with a guide slope, and the limiting part is a protrusion structure provided on the punch assembly. In this technical solution, when the locking member rotates, it connects and fits tightly with the limiting part of the protrusion structure through the guiding action of the guide slope, thereby clamping and limiting the base and the punch assembly, and locking the punch assembly relative to the base. The guide slope makes the rotation locking and unlocking method simpler and less labor-intensive, and the limiting part of the protrusion structure makes the locking more reliable.

[0010] As an improvement, the locking component is provided with a wrench portion, which is subjected to force to drive the locking component to rotate. In this technical solution, a wrench portion is provided on the locking component for user hand operation. The user only needs to move the wrench portion to drive the locking component to rotate back and forth, thereby realizing the active locking or unlocking of the punch assembly. The design of the wrench portion is more ergonomic, making user operation more convenient and effortless.

[0011] As an improvement, a press cover is also included. The press cover is rotatably connected to the base. The press cover rotates under force and acts on the punch assembly to make the punch assembly drill holes. In this technical solution, a rotatable press cover is provided on the base. The press cover is adapted to the punch assembly. The user can press the press cover to rotate it to one side of the base, thereby driving the punch assembly to drill holes, making drilling more labor-saving and efficient.

[0012] As an improvement, this application provides a specific structure for a connector, wherein the connector is a double-sided rivet structure, and the connector connects to the base and the locking member respectively through caps at both ends to limit the punch assembly and the base. In this technical solution, the connector is designed as a double-sided rivet structure, that is, both ends of the connector rod are provided with caps, the connector rod passes through the base, the punch assembly and the locking member, the cap at one end of the connector is used to limit the base, and the cap at the other end of the connector is used to limit the locking member, thereby clamping and limiting the punch assembly and the base, preventing the punch assembly from detaching from the base, and making the connection simple and reliable.

[0013] As an improvement, this application can provide another specific structure for the connector, wherein the connector is a bolt and nut structure, with the bolt passing sequentially through the base, punch assembly, and locking member before connecting to the nut to limit the connection between the punch assembly and the base. In this technical solution, the connector is designed as a bolt and nut combination structure. The bolt passes through the base, punch assembly, and locking member before connecting to the nut. The end of the bolt is used to limit the base, and the nut is used to limit the locking member, thereby clamping and limiting the punch assembly and the base, preventing the punch assembly from detaching from the base, resulting in a simple and reliable connection.

[0014] As an improvement, the punch assembly includes a mounting bracket, a punch, a first retaining spring, and an elastic element. The punch, the first retaining spring, and the elastic element are sequentially installed in the mounting bracket. The mounting bracket has a first through hole adapted to the connector. The connector passes through the first through hole and connects to the locking element. The limiting part is located on the outer periphery of the first through hole. In this technical solution, the punch assembly consists of a mounting bracket, a punch, a first retaining spring, and an elastic element. The punch is installed in the mounting bracket, and the first retaining spring restricts the movement of the punch within the mounting bracket. The elastic element allows the top of the punch to extend out of the mounting bracket, facilitating the punch to bend holes under force. The elastic element provides elastic reset for the punch, eliminating the need for manual reset by the user, making it more convenient and effortless to use. On the other hand, the mounting bracket has a first through hole for the connector to pass through. The connector passes through the base and the first through hole and connects to the locking element, thereby clamping the base and the mounting bracket. The limiting part is located on the mounting bracket and close to the first through hole, allowing it to directly engage with the bottom of the locking element. The overall structure is reasonably designed and space-saving.

[0015] As an improvement, the base is provided with multiple punch holes adapted to the punch assembly; the punch assembly is provided with multiple punches. In this technical solution, the punch holes on the base allow the punches in the punch assembly to extend and punch holes. Multiple punch holes are provided to accommodate the movement of the punch assembly and change the punching position. The multiple punch holes are evenly distributed on the base along a straight line, making punching more precise and efficient. On the other hand, multiple punch assemblies are provided on the base, and multiple punch assemblies punch holes simultaneously to improve the working efficiency of the puncher. Furthermore, all multiple punch assemblies are movable on the base, and the distance between the multiple punch assemblies can be adjusted, so that the distance between holes on the paper pages can be adjusted according to actual needs. Each punch assembly is connected to a locking mechanism, making punching more efficient and reliable. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a hole punch according to this application.

[0017] Figure 2 This is an exploded view of a puncher according to this application.

[0018] Figure 3This is a schematic diagram of the connection structure between the punch assembly and the locking mechanism in this application.

[0019] Figure 4 This is a three-dimensional structural diagram of the punch assembly in this application.

[0020] Figure 5 This is a three-dimensional structural diagram of the locking mechanism in this application.

[0021] Figure 6 This is a three-dimensional structural diagram of the base in this application.

[0022] Figure 7 This is a cross-sectional view of a puncher according to this application.

[0023] The figure shows: 1. Base; 11. First slide rail; 12. Second slide rail; 13. Support; 14. Connecting pin; 15. Second snap ring; 16. Punch; 2. Punch assembly; 21. Mounting bracket; 211. Limiting part; 212. First through hole; 22. Punch; 23. First snap ring; 24. Elastic element; 3. Locking mechanism; 31. Connecting part; 32. Locking part; 321. Wrench part; 322. Guide slope; 4. Handle cover. Detailed Implementation

[0024] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0025] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.

[0026] It should also be understood that the terms "comprising," "including," "having," "containing," and "including," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. The terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (the specific types and constructions may be the same or different), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0027] Furthermore, it should be noted that the terms "installation," "setting," "equipped with," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components; they can refer to a direct installation on another component or the possible presence of another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Example 1

[0029] like Figures 1 to 7 As shown, this application discloses a puncher, including a base 1, a punch assembly 2 movably mounted on the base 1, and a locking mechanism 3 installed between the punch assembly 2 and the base 1. The punch assembly 2 is movably mounted on the base 1, and the punching position is adjusted by moving the punch assembly 2 on the base 1. The locking mechanism 3 is provided between the punch assembly 2 and the base 1, and after the punch assembly 2 moves to its position, it is limited to the base 1 by the locking mechanism 3 to prevent the punch assembly 2 from shifting and affecting the punching effect. The locking mechanism 3 includes a connecting member 31 and a locking member 32, and the punch assembly 2 and the base 1 are connected by a locking mechanism 3. The connector 31 is connected, and the locking member 32 is rotatably mounted on the connector 31. The punch assembly 2 is provided with a limiting part 211 that is adapted to the locking member 32. The locking member 32 engages with the limiting part 211 by rotating to lock the punch assembly 2. The locking member 32 disengages from the limiting part 211 by rotating in the opposite direction to unlock the punch assembly 2. The locking mechanism 3 includes the connector 31 and the locking member 32. The connector 31 passes through the base 1 and the punch assembly 2 and then connects to the locking member 32, so that the base 1 and the punch assembly 2 are clamped by the connector 31 and the locking member 32.

[0030] When punch assembly 2 is needed for drilling, first move punch assembly 2 onto base 1. The user applies force to locking member 32, causing locking member 32 to rotate and connect with limiting part 211, thus clamping and limiting base 1 and punch assembly 2. Punch assembly 2 is locked relative to base 1 and cannot move on base 1, ensuring the accuracy and reliability of drilling. When the position of punch assembly 2 needs to be adjusted, the user applies force to locking member 32, causing locking member 32 to rotate in the opposite direction and disengage from limiting part 211, creating a gap between base 1 and punch assembly 2. Punch assembly 2 is unlocked relative to base 1, allowing the user to move punch assembly 2 on base 1 to adjust the drilling position. The user only needs to rotate locking member 32 back and forth to lock or unlock the punch, making it convenient and labor-saving. The locking mechanism 3 has a simple and reliable structure.

[0031] More specifically, such as Figure 1 , Figure 2 and Figure 6 As shown, the base 1 is provided with a first slide rail 11 adapted to the connector 31. The connector 31 is slidably connected to the first slide rail 11 so that the punch assembly 2 can slide back and forth on the base 1. The first slide rail 11 is provided on the base 1 for the connector 31 to slide. The connector 31 adjusts the punching position of the punch assembly 2 by sliding back and forth in the first slide rail 11. The sliding adjustment method is simple and labor-saving. On the other hand, the base 1 is provided with a second slide rail 12 adapted to the punching assembly. The punching assembly is slidably installed on the second slide rail 12. The cooperation between the first slide rail 11 and the second slide rail 12 makes the sliding of the punching assembly more efficient and reliable.

[0032] More specifically, such as Figures 1 to 3 As shown, the locking member 32 is provided with a wrench part 321. The wrench part 321 is subjected to force to drive the locking member 32 to rotate. The wrench part 321 is provided on the locking member 32 for the user to operate with their hand. The user only needs to move the wrench part 321 to drive the locking member 32 to rotate back and forth, thereby realizing the active locking or unlocking of the punch assembly 2. The design of the wrench part 321 is more ergonomic, making it more convenient and effortless for the user to operate.

[0033] Example 2

[0034] like Figures 1 to 5As shown, this embodiment is based on the punch disclosed in Embodiment 1, and its structure is the same as that of Embodiment 1. In this embodiment, the bottom of the locking member 32 is provided with a guide slope 322. When the locking member 32 is rotated under force, it is tightly fitted with the limiting part 211 through the guide slope 322 so that the punch assembly 2 is movable and locked. The guide slope 322 is provided at the bottom of the locking member 32. When the locking member 32 rotates, it is connected and tightly fitted with the limiting part 211 through the guiding action of the guide slope 322, so that the base 1 and the punch assembly 2 are clamped and limited. The punch assembly 2 is movable and locked relative to the base 1. The guide slope 322 makes the rotation locking and unlocking method simpler and less labor-intensive.

[0035] Example 3

[0036] like Figures 1 to 5 As shown, this embodiment is based on the punch disclosed in Embodiment 1, and its structure is the same as that of Embodiment 1. The limiting part 211 is a protruding structure provided on the punch assembly 2. The limiting part 211 and the bottom of the locking member 32 are tightly fitted by rotation to make the punch assembly 2 movable and locked. The limiting part 211 is a protruding structure. The locking member 32 is connected and tightly fitted to the limiting part 211 of the protruding structure by rotation, so that the base 1 and the punch assembly 2 are clamped and limited. The punch assembly 2 is movable and locked relative to the base 1, and the locking is more reliable. On the other hand, the guide slope 322 can also be provided on the protruding structure of the limiting part 211, so that the rotation of the locking member 32 is more effortless.

[0037] Example 4

[0038] like Figures 1 to 5 As shown, this embodiment is based on the punch disclosed in Embodiment 1, and its structure is the same as that of Embodiment 1. In this embodiment, the bottom of the locking member 32 is provided with a guide slope 322, and the limiting part 211 is a protrusion structure provided on the punch assembly 2. When the locking member 32 rotates, it is connected and tightly fitted with the limiting part 211 of the protrusion structure through the guiding action of the guide slope 322, so that the base 1 and the punch assembly 2 are clamped and limited, and the punch assembly 2 is movably locked relative to the base 1. The guide slope 322 makes the rotation locking and unlocking method simpler and less effortful, and the limiting part 211 of the protrusion structure makes the locking more reliable.

[0039] Example 5

[0040] like Figures 1 to 7As shown, this embodiment discloses a punch based on any one of the embodiments from embodiment one to embodiment four. Its structure is the same as the referenced embodiment. It also includes a press cover 4, which is rotatably connected to the base 1. The press cover 4 rotates under force and acts on the punch assembly 2 to make the punch assembly 2 punch holes. A rotatable press cover 4 is provided on the base 1. The press cover 4 is adapted to the punch assembly 2. The user can press the press cover 4 to rotate it to one side of the base 1, thereby driving the punch assembly 2 to punch holes, making punching more labor-saving and efficient.

[0041] More specifically, such as Figures 2 to 4 As shown, the punch assembly 2 includes a mounting bracket 21, a punch 22, a first retaining spring 23, and an elastic element 24. The punch 22, the first retaining spring 23, and the elastic element 24 are sequentially installed in the mounting bracket 21. The punch 22 is installed in the mounting bracket 21, and the first retaining spring 23 restricts the movement of the punch 22 in the mounting bracket 21. The elastic element 24 keeps the top of the punch 22 protruding from the mounting bracket 21, so that the punch 22 can be subjected to force to punch holes. The elastic element 24 has an elastic reset function for the punch 22, eliminating the need for manual reset by the user, making it more labor-saving and convenient to use.

[0042] More specifically, such as Figures 2 to 4 As shown, the mounting bracket 21 is provided with a first through hole 212 that is adapted to the connector 31. The connector 31 passes through the first through hole 212 and connects to the locking member 32. The limiting part 211 is provided on the outer periphery of the first through hole 212. The mounting bracket 21 is provided with a first through hole 212 for the connector 31 to pass through. The connector 31 passes through the base 1 and the first through hole 212 and connects to the locking member 32, thereby clamping the base 1 and the mounting bracket 21. The limiting part 211 is set on the mounting bracket 21 and close to the first through hole 212. The limiting part 211 can directly cooperate with the bottom of the locking member 32. The overall structure design is reasonable and saves space.

[0043] More specifically, such as Figure 1 and Figure 2 As shown, a support member 13 adapted to the press cover 4 is provided on the base 1. The support member 13 is riveted and fixed to the base 1. The press cover 4 is fixed to the support member 13 by the connecting pin 14 and the second snap ring 15. The press cover 4 rotates on the support member 13 under force, that is, the press cover 4 rotates relative to the base 1. The connection is simple and reliable.

[0044] More specifically, such as Figure 6 As shown, the base 1 is provided with multiple punch holes 16 that are adapted to the punch assembly 2. The punch holes 16 on the base 1 allow the punch 22 inside the punch assembly 2 to extend and punch holes. Multiple punch holes 16 are provided to accommodate the movement of the punch assembly 2 and change the punching position. The multiple punch holes 16 are evenly distributed along a straight line on the base 1, making punching more precise and efficient. On the other hand, as... Figure 1 and Figure 2As shown, multiple punch assemblies 2 are set on the base 1. The multiple punch assemblies 2 punch holes simultaneously to improve the working efficiency of the puncher. The multiple punch assemblies 2 are all movable on the base 1, and the distance between the multiple punch assemblies 2 can be adjusted by the movement, so that the distance between the holes on the paper pages can be adjusted according to actual needs. Each punch assembly 2 is connected to a locking mechanism 3, making punching more efficient and reliable.

[0045] Example 6

[0046] like Figures 1 to 7 As shown, this embodiment discloses a punch based on any one of the embodiments from embodiment one to embodiment five. Its structure is the same as the referenced embodiment. In this embodiment, the connector 31 is a double-sided rivet structure. The connector 31 is connected to the base 1 and the locking member 32 respectively through the caps at both ends to limit the punch assembly 2 and the base 1. The connector 31 is designed as a double-sided rivet structure, that is, both ends of the rod of the connector 31 are provided with caps. The rod of the connector 31 passes through the base 1, the punch assembly 2 and the locking member 32. The cap at one end of the connector 31 is used to limit the base 1, and the cap at the other end of the connector 31 is used to limit the locking member 32. In this way, the punch assembly 2 and the base 1 are clamped and limited, and the punch assembly 2 cannot be separated from the base 1. The connection is simple and reliable.

[0047] Example 7

[0048] This embodiment discloses a punch based on any one of the embodiments from Embodiment 1 to Embodiment 5. Its structure is the same as the referenced embodiment. The connecting member 31 is a bolt and nut structure. The bolt passes through the base 1, the punch assembly 2 and the locking member 32 in sequence and then connects to the nut to limit the punch assembly 2 and the base 1. The connecting member 31 is designed as a bolt and nut combination structure. The bolt passes through the base 1, the punch assembly 2 and the locking member 32 and then connects to the nut. The end of the bolt is used to limit the base 1 and the nut is used to limit the locking member 32. Thus, the punch assembly 2 and the base 1 are clamped and limited, and the punch assembly 2 cannot be separated from the base 1. The connection is simple and reliable.

[0049] This application is not limited to the above-described preferred embodiments. Anyone can derive other products in various forms under the guidance of this application. However, regardless of any changes made to their shape or structure, any technical solution that is the same as or similar to that of this application falls within the protection scope of this application.

Claims

1. A punch, comprising a base (1), characterized in that, A punch assembly (2) is movably mounted on the base (1). A locking mechanism (3) is installed between the punch assembly (2) and the base (1). The locking mechanism (3) includes a connector (31) and a locking member (32). The punch assembly (2) and the base (1) are connected by the connector (31). The locking member (32) is rotatably mounted on the connector (31). The punch assembly (2) is provided with a limiting part (211) that is adapted to the locking member (32). The locking member (32) engages with the limiting part (211) by rotation to lock the punch assembly (2). The locking member (32) disengages from the limiting part (211) by reverse rotation to unlock the punch assembly (2).

2. A hole punch according to claim 1, characterized in that, The base (1) is provided with a first slide rail (11) adapted to the connector (31), and the connector (31) is slidably connected to the first slide rail (11) so that the punch assembly (2) can slide back and forth on the base (1).

3. A hole punch according to claim 1, characterized in that, The bottom of the locking member (32) is provided with a guide slope (322). When the locking member (32) is rotated under force, it is tightly fitted with the limiting part (211) through the guide slope (322) so that the punch assembly (2) is movable and locked.

4. A hole punch according to claim 1 or 3, characterized in that, The limiting part (211) is a protruding structure provided on the punch assembly (2). The limiting part (211) and the bottom of the locking member (32) are tightly fitted by rotation to make the punch assembly (2) movable and locked.

5. A hole punch according to claim 1, characterized in that, The locking member (32) is provided with a wrench part (321), and the wrench part (321) is subjected to force to drive the locking member (32) to rotate.

6. A hole punch according to claim 1, characterized in that, It also includes a press cover (4), which is rotatably connected to the base (1). The press cover (4) is rotated under force and acts on the punch assembly (2) to make the punch assembly (2) punch holes.

7. A hole punch according to claim 1, characterized in that, The connector (31) is a double-sided rivet structure. The connector (31) is connected to the base (1) and the locking member (32) respectively through the caps at both ends to limit the punch assembly (2) and the base (1).

8. A hole punch according to claim 1, characterized in that, The connecting member (31) is a bolt and nut structure. The bolt passes through the base (1), the punch assembly (2) and the locking member (32) in sequence and then connects to the nut to limit the connection between the punch assembly (2) and the base (1).

9. A hole punch according to claim 1, characterized in that, The punch assembly (2) includes a mounting bracket (21), a punch (22), a first retaining ring (23), and an elastic member (24). The punch (22), the first retaining ring (23), and the elastic member (24) are sequentially installed in the mounting bracket (21). The mounting bracket (21) is provided with a first through hole (212) adapted to the connector (31). The connector (31) passes through the first through hole (212) to connect to the locking member (32). The limiting part (211) is provided on the outer periphery of the first through hole (212).

10. A hole punch according to claim 1, characterized in that, The base (1) is provided with a plurality of punch holes (16) that are adapted to the punch assembly (2); the punch assembly (2) is provided with a plurality of punch holes.

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