A new type of loose-leaf binding punch

Abstract

The utility model relates to a novel loose-leaf binding puncher. Adopted technical scheme is: including pressing plate, fixed plate, punch assembly and pressure application subassembly, the built-in oval punch and circular punch of punch assembly are movably inserted on the fixed plate, the pressure application subassembly drives the rack and pinion linkage through the first adjusting screw, makes the pressure column rotate 90 degrees, switches the first pressure block of alignment oval punch or the second pressure block of circular punch, realizes the quick switching of round hole and oval hole. The fixed plate rear side wall is equipped with L type supporting plate, and the cooperation alignment block can assist the alignment of different specifications of paper. The utility model has the advantages of: solve the single hole type of existing puncher, the problem that switching is complicated, simple structure, convenient operation can improve the use flexibility and efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of binding punchers, and relates to a novel loose-leaf binding puncher. Background Technology

[0002] As a commonly used tool in office work, study, and handicrafts, the core function of a loose-leaf binder hole punch is to punch holes in materials such as paper and thin plastic to accommodate the loose-leaf rings, enabling flexible binding and unbinding of materials. With the diversification of loose-leaf products, the demand for different hole types has gradually diversified: for example, standard loose-leaf rings are mostly compatible with round holes, while some wide-format binders or special binding scenarios, such as thick loose-leaf books that require frequent flipping, are more suitable for oval holes to reduce friction between the hole and the loose-leaf ring and prevent tearing of the material.

[0003] However, existing loose-leaf binding hole punchers generally suffer from the problem of limited hole types: most products can only punch out one fixed hole type, either round or oval. If users need to switch between different hole types, they need to purchase multiple hole punchers, which not only increases the cost of use but also makes it inconvenient to carry and store the tools.

[0004] Therefore, this utility model provides a novel loose-leaf binding punch to solve the above problems. Utility Model Content

[0005] In view of the problems existing in the prior art, this utility model discloses a novel loose-leaf binding hole punch. The technical solution adopted includes a pressure plate, the two rear corners of the lower side wall of the pressure plate being hinged to the left and right corners of the upper rear edge of a fixing plate, respectively. Rectangular through slots are formed through the left and right side walls of the fixing plate. Several elliptical slots are evenly formed from left to right in the middle of the upper and lower side walls of the fixing plate. A punching assembly is movably inserted into the elliptical slots. The punching assembly includes an elliptical punch. A rectangular notch is formed through the middle of the front and rear side walls of the upper part of the elliptical punch on the fixing plate. The upper ends of the side walls of adjacent elliptical punches are fixedly connected by a first pressure block. A first spring is fixedly connected to the fixing plate between adjacent elliptical punches through a slot. The upper part of the first spring is fixedly connected to the lower part of the first pressure block. A circular punch is fitted inside the elliptical punch. Second pressure blocks are fixedly connected to the upper parts of the front and rear side walls of the circular punch, respectively, opposite the front and rear rectangular notches. The lower parts of the front and rear second pressure blocks are also fixedly connected to the first spring. The lower parts of the front and rear first springs are embedded and fixedly connected to... Within the countersunk holes on the fixed plate, symmetrical alignment countersunk holes are formed on both sides of the upper end of the elliptical punch and the circular punch. A pressure-applying component is provided on the upper part of the punching assembly. The pressure-applying component includes a pressure block. A hole is formed on the lower part of the pressure block opposite the circular punch to rotatably engage a first pin. A gear is fixedly mounted on the lower part of the first pin at the lower part of the pressure block. A pin at the lower part of the gear is fixedly connected to a connecting block. Pressure-applying columns are fixedly connected to the lower front and rear sides of the connecting block opposite the front and rear alignment countersunk holes. The gear... The front side engages with the teeth of a rack that is slidably disposed at the lower part of the pressure block. The left end of the rack is bent downward and rotates and engages with the right end of the first adjusting screw. The left side of the first adjusting screw is threadedly connected to a threaded sleeve. The upper part of the threaded sleeve is fixedly connected to the pressure block. The lower sides of the left and right ends of the pressure block are fixedly connected to second pins. The lower ends of the left and right second pins are movably inserted into the left and right sides of the fixed plate. The part of the second pin located at the upper part of the fixed plate is fitted with a second spring. An L-shaped support plate is installed on the rear side wall of the fixed plate.

[0006] As a preferred embodiment of this utility model, the two rear corners of the lower side wall of the pressure plate are respectively fixedly provided with first fixing ears, the left and right first fixing ears are inserted with rotating shafts, the rotating shafts between the left and right first fixing ears are respectively fitted with torsion springs, and the rotating shafts on the outer sides of the left and right first fixing ears are respectively inserted with second fixing ears.

[0007] In a preferred embodiment of this utility model, the second fixing ear is fixedly connected to the fixing plate.

[0008] As a preferred embodiment of this utility model, the four alignment countersunk holes on the periphery of the same circular punch are equally spaced from the circular punch; this design of the alignment countersunk holes makes it easy for the pressure column at the bottom of the same connecting block to align with the corresponding alignment countersunk hole when it is rotated 90 degrees and pressed down.

[0009] In a preferred embodiment of this utility model, the lower ends of the elliptical punch and the circular punch are flush with the lower surface of the fixing plate.

[0010] As a preferred embodiment of this utility model, the upper part of the pressure block is higher in the front and lower in the back, and it slides in contact with the lower surface of the pressure plate.

[0011] As a preferred embodiment of this utility model, the rack with a groove in the middle is slidably connected to the lower side wall of the pressure block by a pin; this design of the rack facilitates the left and right movement of the rack under the action of the first adjusting screw, thereby allowing for the rotational switching of each set of connecting blocks and pressure columns.

[0012] As a preferred embodiment of this utility model, the first adjusting screw is fitted with limiting rings on both the left and right sides of the bent portion at the left end of the rack; this design makes it easy to turn the first adjusting screw and drive the rack to move left and right.

[0013] In a preferred embodiment of this utility model, an alignment block is movably disposed within the gap between the lower horizontal plate of the L-shaped tray and the fixed plate. The middle of the rear side wall of the alignment block is rotatably engaged with the front end of the second adjusting screw, which is screwed into the rear side wall of the L-shaped tray. Marking scales are respectively opened on the left and right side walls of the L-shaped tray. By using the second adjusting screw to drive the alignment block to move back and forth, the edges of papers of different sizes are aligned, improving the convenience of punching.

[0014] The beneficial effects of this utility model are as follows: By setting a punching assembly, which includes an elliptical punch and a circular punch fitted inside the elliptical punch, and by adjusting the first adjusting screw of the pressure application assembly, the first adjusting screw drives the rack to move, which in turn drives each gear fixedly fitted on the first pin to rotate, thereby driving the connecting block at the lower end of the first pin and the pressure column to rotate 90 degrees. This allows for quick switching between the pressure column aligning with the first pressure blocks on both sides of the elliptical punch or the second pressure blocks on the front and rear sides of the circular punch, thus enabling rapid switching between making elliptical holes and circular holes with the binding punch, improving the flexibility and convenience of the device in daily use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2This is a schematic diagram of the assembly of the pressure plate and the fixing plate of this utility model;

[0017] Figure 3 This is a schematic diagram of the punching assembly of this utility model;

[0018] Figure 4 This is a partial detail view of the punching component of this utility model;

[0019] Figure 5 This is a schematic diagram of the pressure application component of this utility model;

[0020] Figure 6 This is a partial detail view of the pressure application component of this utility model;

[0021] Figure 7 This is a cross-sectional view of the pressure application component of this utility model;

[0022] Figure 8 This is a schematic diagram of the L-shaped tray of this utility model;

[0023] Figure 9 This is a cross-sectional view of the L-shaped pallet of this utility model.

[0024] In the diagram: 1-Pressure plate, 2-Fixing plate, 3-Punching assembly, 4-Pressure application assembly, 5-L-shaped support plate, 11-First fixing ear, 12-Rotating shaft, 13-Torsion spring, 14-Second fixing ear, 21-Rectangular through slot, 22-Oval slot, 31-Oval punch, 311-Rectangular notch, 32-First pressure stop block, 33-First spring, 34-Circular punch, 35-Second pressure stop block, 36-Aligning countersunk hole, 41-Pressure application block, 42-First pin, 43-Gear, 44-Connecting block, 45-Pressure application column, 46-Rack, 47-First adjusting screw, 471-Threaded sleeve, 472-Limiting ring, 48-Second pin, 49-Second spring, 51-Alignment block, 52-Second adjusting screw, 53-Marking scale. Detailed Implementation

[0025] Example 1

[0026] like Figures 1 to 9As shown, the novel loose-leaf binding punch of this utility model adopts the following technical solution: It includes a pressure plate 1. First fixing ears 11 are fixedly provided at the two rear corners of the lower side wall of the pressure plate 1. Rotating shafts 12 are inserted into the left and right first fixing ears 11. Torsion springs 13 are respectively fitted onto the rotating shafts 12 between the left and right first fixing ears 11. Second fixing ears 14 are inserted into the rotating shafts on the outer sides of the left and right first fixing ears 11. The second fixing ears 14 are respectively fixedly connected to the fixing plate 2. Rectangular through slots 21 are formed through the left and right side walls of the fixing plate 2. A plurality of elliptical slots 22 are evenly formed from left to right in the middle of the upper and lower side walls of the fixing plate 2. Punching components 3 are movably inserted into the elliptical slots 22. The punching assembly 3 includes an elliptical punch 31. A rectangular notch 311 is formed through the middle of the front and rear sidewalls of the upper part of the fixed plate 2. The upper ends of the sidewalls of adjacent elliptical punches 31 are fixedly connected by a first pressure-stopping block 32. A first spring 33 is fixedly connected to the fixed plate between adjacent elliptical punches 31 through a slot. The upper part of the first spring 33 is fixedly connected to the lower part of the first pressure-stopping block 32. A circular punch 34 is fitted inside the elliptical punch 31. The lower ends of the elliptical punch 31 and the circular punch 34 are flush with the lower surface of the fixed plate 2. Second pressure-stopping blocks are fixedly connected to the upper parts of the front and rear sidewalls of the circular punch 34, directly opposite the front and rear rectangular notches 311. Block 35, the lower part of the front and rear second pressure blocks 35 are also fixedly connected to the first spring 33 respectively. The lower part of the front and rear first springs 33 are embedded and fixed in the countersunk holes of the fixed plate. The pressure blocks on both sides of the upper end of the elliptical punch 31 and the circular punch 34 are respectively symmetrically provided with alignment countersunk holes 36. The four alignment countersunk holes 36 around the same circular punch 34 are equally spaced from the circular punch 34. The upper part of the punching assembly 3 is provided with a pressure application assembly 4. The pressure application assembly 4 includes a pressure application block 41. The upper part of the pressure application block 41 is higher in the front and lower in the back, and slides in contact with the lower surface of the pressure plate 1. The lower part of the pressure application block 41, facing the circular punch 34, is provided with holes for rotating and engaging the first pin. 42. The first pin 42 is located at the lower part of the pressure block to fix the gear 43. The pin at the lower part of the gear 43 is fixedly connected to the connecting block 44. The lower parts of the front and rear sides of the connecting block 44 are respectively fixedly connected to the front and rear alignment countersunk holes 36. The front side of the gear 43 meshes with the teeth of the rack 46 that is slidably set at the lower part of the pressure block 41. The rack 46 has a groove in the middle and is slidably connected to the lower side wall of the pressure block 41 by a pin. The left end of the rack 46 is bent downward and rotated to engage with the right end of the first adjusting screw 47. The left side of the first adjusting screw 47 is threadedly connected to the threaded sleeve 471. The upper part of the threaded sleeve 471 is fixedly connected to the pressure block 41.The first adjusting screw 47 is fitted onto the left and right sides of the bent portion at the left end of the rack 46, and limiting rings 472 are fixedly installed on each side. Second pins 48 are fixedly connected to the lower sides of the left and right ends of the pressure block 41. The lower ends of the second pins 48 are movably inserted into the left and right sides of the fixing plate 2. A second spring 49 is fitted onto the upper part of the second pin 48 on the fixing plate. An L-shaped support plate 5 is installed on the rear side wall of the fixing plate 2. An alignment block 51 is movably installed in the gap between the lower horizontal plate of the L-shaped support plate 5 and the fixing plate 2. The middle of the rear side wall of the alignment block 51 is rotatably engaged with the front end of the second adjusting screw 52. The second adjusting screw 52 is screwed into the rear side wall of the L-shaped support plate 5. Marking scales 53 are respectively opened on the left and right side walls of the L-shaped support plate 5.

[0027] The working principle of this utility model is as follows: When in use, the user neatly stacks the paper to be punched. According to the paper specifications, such as A3, A4, or A5, adjusts the second adjusting screw 52 to move the alignment block 51 until it aligns with the corresponding marking 53. Then, the side of the stacked paper to be punched is inserted into the gap between the fixing plate 2 and the L-shaped support plate 5, ensuring that the side to be punched is aligned with the alignment block 51. When punching a round hole, observe whether the pressure post 45 at the bottom of the connecting block 44 aligns with the alignment countersunk hole 36 on the front and rear second pressure blocks 35. If aligned, press down on the anti-slip strip on the front edge of the pressure plate 1, causing the pressure plate 1 to press down on the pressure block 41. The pressure block 41 moves the lower connecting block 44 and the corresponding pressure post 45 downwards. The pressure post 45 presses against the corresponding second pressure block 35, which in turn moves the corresponding circular punch 34 downwards, punching a round hole in the paper. After releasing the pressure plate 1, the second spring 49... When the second pins 48 on both sides are lifted, the pressure block 41 moves upward to its original position. At the same time, the first springs 33 on the front and rear sides of the circular punch 34 lift it back to its original position, preparing for the next punching. If an elliptical hole needs to be made, rotate the first adjusting screw 47. The first adjusting screw 47 moves to the right relative to the threaded sleeve 471, which in turn moves the rack 46 to the right, causing the corresponding gear 43 to rotate counterclockwise. This causes the first pin 42 to rotate counterclockwise by 90 degrees, causing the connecting block 44 and the pressure column 45 at its lower end to rotate counterclockwise by 90 degrees. This causes the pressure column 45 to align with the alignment countersunk holes 36 on the first pressure blocks 32 on both sides of the elliptical punch 31. Press the front and rear edges of the pressure plate 1 again. The pressure block 41 drives the lower connecting block 44 and the corresponding pressure column 45 to move downward. The pressure column 45 squeezes the corresponding first pressure block 32. The first pressure block 32 drives the corresponding elliptical punch 31 to move downward, making an elliptical hole in the paper.

[0028] Electrical connection methods or structures not described in detail in this article are existing technologies.

[0029] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A new type of loose-leaf binding puncher characterized by: The system includes a pressure plate (1), the two rear corners of the lower side wall of the pressure plate (1) are hinged to the left and right corners of the upper rear edge of the fixing plate (2), the left and right side walls of the fixing plate (2) have rectangular through slots (21), and the upper and lower side walls of the fixing plate (2) have several elliptical slots (22) evenly spaced from left to right. A punching assembly (3) is movably inserted into the elliptical slots (22). The punching assembly (3) includes an elliptical punch (31), and the elliptical punch (31) has a rectangular notch (311) through the middle of the front and rear side walls of the upper part of the fixing plate (2). The upper ends of the side walls of adjacent elliptical punches (31) are fixedly connected by a first pressure-stopping block (32). A first spring (33) is fixedly connected to a slotted plate between adjacent elliptical punches (31). The upper part of the first spring (33) is fixedly connected to the lower part of the first pressure block (32). A circular punch (34) is fitted inside the elliptical punch (31). The upper parts of the front and rear side walls of the circular punch (34) are respectively fixedly connected to the front and rear rectangular notches (311). The lower parts of the front and rear second pressure blocks (35) are also respectively fixedly connected to the first spring (33). The lower parts of the front and rear first springs (33) are embedded and fixedly connected to the countersunk holes in the fixed plate. The upper ends of the elliptical punch (31) and the circular punch (34) are respectively fixedly connected to the first spring (33). The pressure blocks are symmetrically provided with alignment countersunk holes (36). A pressure-applying component (4) is provided on the upper part of the punching assembly (3). The pressure-applying component (4) includes a pressure block (41). The lower part of the pressure block (41) facing the circular punch (34) has holes for rotating and engaging a first pin (42). A gear (43) is fixedly mounted on the lower part of the first pin (42). A pin at the lower part of the gear (43) is fixedly connected to a connecting block (44). Pressure-applying columns (45) are fixedly connected to the lower front and rear sides of the connecting block (44) facing the front and rear alignment countersunk holes (36), respectively. The front side of the gear (43) is slidably mounted on the pressure block. 41) The teeth of the lower rack (46) are engaged. The left end of the rack (46) is bent downward and rotated and engaged with the right end of the first adjusting screw (47). The left side of the first adjusting screw (47) is threadedly connected to the threaded sleeve (471). The upper part of the threaded sleeve (471) is fixedly connected to the pressure block (41). The lower sides of the left and right ends of the pressure block (41) are respectively fixedly connected to the second pins (48). The lower ends of the left and right second pins (48) are respectively movably inserted into the left and right sides of the fixed plate (2). The second pins (48) located at the upper part of the fixed plate are fitted with the second spring (49). The rear side wall of the fixed plate (2) is fitted with an L-shaped support plate (5).

2. A new type of loose-leaf binding puncher according to claim 1, characterized in that: The lower side wall of the pressure plate (1) is fixed with two first fixing ears (11) at the rear corners respectively. A rotating shaft (12) is inserted into the left and right first fixing ears (11). A torsion spring (13) is fitted on the rotating shaft (12) between the left and right first fixing ears (11). The rotating shafts on the outside of the left and right first fixing ears (11) are respectively inserted into the second fixing ears (14).

3. A new type of loose-leaf binding puncher according to claim 2, characterized in that: The second fixing ear (14) is fixedly connected to the fixing plate (2).

4. A new type of loose-leaf binding puncher according to claim 1, characterized in that: The four alignment holes (36) on the periphery of the same circular punch (34) are equally spaced from the circular punch (34).

5. A novel loose-leaf binding punch according to claim 1, characterized in that: The lower ends of the elliptical punch (31) and the circular punch (34) are flush with the lower surface of the fixing plate (2).

6. A novel loose-leaf binding punch according to claim 1, characterized in that: The upper part of the pressure block (41) is higher in the front and lower in the back, and it slides in contact with the lower surface of the pressure plate (1).

7. A novel loose-leaf binding punch according to claim 1, characterized in that: The rack (46) has a slot in the middle and is slidably connected to the lower side wall of the pressure block (41) by a pin.

8. A novel loose-leaf binding punch according to claim 1, characterized in that: The first adjusting screw (47) is fitted onto the left and right sides of the bent portion at the left end of the rack (46) and a limiting ring (472) is fixed thereon.

9. A novel loose-leaf binding punch according to claim 1, characterized in that: An alignment block (51) is movably disposed in the gap between the lower horizontal plate of the L-shaped tray (5) and the fixed plate (2). The middle of the rear side wall of the alignment block (51) is rotatably engaged with the front end of the second adjusting screw (52). The second adjusting screw (52) is screwed into the rear side wall of the L-shaped tray (5). Marking scales (53) are respectively opened on the left and right side walls of the L-shaped tray (5).

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