Paper shredder

Abstract

The application provides a paper shredder. The paper shredder comprises a paper supporting plate with a paper supporting surface, a paper supporting plate with a paper entering opening, a paper pressing plate with a paper pressing surface facing the paper supporting surface, a nail removing structure comprising a first nail removing part arranged on the paper supporting surface, and the first nail removing part and the paper pressing surface are configured to clamp the paper and remove nails on the paper; or the nail removing structure further comprises a second nail removing part arranged on the paper pressing surface, and the first nail removing part and the second nail removing part are configured to clamp the paper and remove nails on the paper. The first nail removing part and the paper pressing surface, or the first nail removing part and the second nail removing part, clamp the paper and remove nails on the paper, thereby ensuring the reliability of nail removing and paper shredding, and improving the paper shredding efficiency.

Description

Technical Field

[0001] This application relates to the field of paper shredding technology, and more specifically, to a paper shredder. Background Technology

[0002] In an automatic paper shredder, the lower layer of paper moves toward the shredding assembly. When multiple sheets of paper are stapled together, the pulling force of the moving lower layer of paper and the linkage effect of the staples on the upper layer of paper can cause multiple sheets of paper to be bitten together by the shredding assembly, resulting in stalling or overload, which affects the reliability and efficiency of shredding. Utility Model Content

[0003] This application addresses the shortcomings of existing methods by proposing a paper shredder that solves the technical problem that, due to the linkage effect of staples on the paper, multiple sheets of paper are easily bitten together by the shredding component, causing blockage or overload, thus affecting the reliability and efficiency of shredding.

[0004] This application provides a paper shredder, including: A paper tray has a paper tray surface; the paper tray has a paper inlet opening. The pressing board has a pressing surface facing the paper-supporting surface; The staple removal structure includes a first staple removal part disposed on the paper support surface; The first staple removal part and the paper pressing surface are configured to cooperate in clamping the paper and removing staples from the paper; or, the staple removal structure further includes a second staple removal part disposed on the paper pressing surface, and the first staple removal part and the second staple removal part are configured to cooperate in clamping the paper and removing staples from the paper.

[0005] Optionally, at least one of the first and second nail removal portions includes a protrusion.

[0006] Optionally, the first staple removal portion that mates with the paper pressing surface includes a protrusion.

[0007] Optionally, the first nail removal part includes a first protrusion, and the second nail removal part includes a second protrusion that corresponds to and engages with the first protrusion; or, The first nail removal part includes a protrusion, and the second nail removal part includes a groove that matches the protrusion; or, The first nail removal part includes a groove, and the second nail removal part includes a protrusion adapted to the groove.

[0008] Optionally, the protrusion extends in a direction parallel to the direction of the paper feed opening.

[0009] Optionally, the extension direction of the protrusion forms an angle with the extension direction of the paper inlet; Angles can be acute or obtuse.

[0010] Optionally, the paper tray includes: The paper is held flat, and the paper inlet is located on the flat paper surface. An inclined paper support surface located on at least one side of the paper inlet.

[0011] Optionally, the paper guide is tilted away from the pressure plate in a direction away from the paper inlet.

[0012] Optionally, the inclined paper support surface is perpendicular to the flat paper support surface and is located on the side of the flat paper support surface away from the pressure plate; or, The paper guide is tilted towards the side away from the pressure plate, along the direction closest to the paper inlet.

[0013] Optionally, the first staple removal part is located at the corner where the inclined paper support surface and the flat paper support surface meet; or, The corner where the oblique paper surface and the flat paper surface meet serves as the first nail removal section.

[0014] Optionally, the first staple removal part is disposed on the first inclined paper support surface on the first side of the paper inlet; The paper pressing surface includes a first paper pressing surface corresponding to the first inclined paper support surface; The first staple removal part mates with the first paper pressing surface; or, the first paper pressing surface is provided with a second staple removal part that mates with the first staple removal part.

[0015] Optionally, the first staple removal part is disposed on the second inclined paper support surface on the second side of the paper inlet; The paper pressing surface includes a second paper pressing surface corresponding to the second inclined paper support surface; The first staple removal part mates with the second paper pressing surface; or, the second paper pressing surface is provided with a second staple removal part that mates with the first staple removal part.

[0016] Optionally, at least two first staple removal sections are provided on the first inclined paper support surface; At least two first staple removal sections are distributed along the extension direction of the paper feed opening.

[0017] Optionally, at least two second staple removal sections are provided on the first pressing surface; At least two second nail removal sections are provided in a one-to-one correspondence with at least two first nail removal sections.

[0018] Optionally, the second inclined paper support surface is provided with at least two first staple removal sections; At least two first staple removal sections are distributed along the extension direction of the paper feed opening.

[0019] Optionally, at least two of the first staple removal sections mate with the second paper pressing surface; or, The second paper pressing surface is provided with at least two second staple removal parts, and the at least two second staple removal parts are arranged in a one-to-one correspondence with at least two first staple removal parts.

[0020] Optionally, the paper pressing surface is provided with at least two second staple removal portions and at least one third protrusion; At least two second staple removal sections are distributed along the extension direction of the paper inlet; The third protrusion is disposed between two adjacent second staple removal sections, and at least one third protrusion extends in a direction perpendicular to the paper feed opening.

[0021] The beneficial technical effects of the technical solutions provided in this application include: In this embodiment, the paper shredder includes a staple removal structure. This structure removes staples from the paper, separating multiple sheets of paper that are stapled together. This releases the staples from binding the sheets, allowing each sheet to be individually fed into the paper feed and shredded by the shredding assembly, ensuring the reliability and efficiency of the staple-removed shredding process. Because the staples are removed by the staple removal structure, upper sheets of paper are prevented from being fed into the paper feed along with lower sheets, and from moving to the shredding assembly together. This avoids the blockage or overload problems caused by multiple sheets of paper being caught in the shredding assembly.

[0022] In this embodiment, the first staple removal part of the staple removal structure is located on the paper support surface, and the first staple removal part can cooperate with the paper pressing surface to clamp the paper and remove the staples on the paper. Alternatively, the first staple removal part of the staple removal structure is located on the paper support surface, and the second staple removal part of the staple removal structure is located on the paper pressing surface, and the first staple removal part can also cooperate with the second staple removal part to clamp the paper and remove the staples on the paper.

[0023] Under the clamping force provided by the first staple removal section and the paper pressing surface, or the first and second staple removal sections, and the force provided by the upward tilting of the lower layer of paper and the downward tilting of the upper layer of paper, the staples binding multiple layers of paper together are removed at the location where the first staple removal section and the paper pressing surface, or the location where the first and second staple removal sections, are engaged. This achieves the effect of staple removal while also separating the multiple layers of paper, preventing the upper layer of paper with staples from entering the shredding assembly along with the lower layer of paper. The clamping effect of the first staple removal section and the paper pressing surface, or the clamping effect of the first and second staple removal sections, reduces the risk of multiple sheets of paper being caught in the shredding assembly, causing jamming or overload, and ensures the reliability of staple removal and shredding.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a partial structural diagram of a paper shredder provided in an embodiment of this application; Figure 2This is a cross-sectional schematic diagram of a partial structure of a paper shredder provided in an embodiment of this application; Figure 3 This is an enlarged cross-sectional view of a portion of the structure of a paper shredder provided in an embodiment of this application; Figure 4 This is a schematic diagram of a partial structure of a paper shredder provided in an embodiment of the present application, and the driving relationship between the movement of the lower layer of paper and the upper layer of paper (where the thick arrow indicates the direction of paper movement). Figure 5 This is an enlarged cross-sectional view of another part of the structure of a paper shredder provided in an embodiment of this application; Figure 6 This is a schematic diagram of another part of the structure of a paper shredder provided in an embodiment of this application, as well as the driving relationship between the movement of the lower layer of paper and the upper layer of paper (where the thick arrow indicates the direction of paper movement). Figure 7 A schematic diagram of the structure of the pressure plate and the second staple removal section of a paper shredder provided in this application embodiment; Figure 8 This is a schematic diagram of the structure of the first extension portion and the second staple removal portion of the pressure plate of a paper shredder provided in an embodiment of this application.

[0026] Figure label: 100-Paper Shredder; 20-body; 30-board tray; 31-Paper side; 32 - Flat paper support; 331 - First oblique paper support; 332 - Second oblique paper support; 34 - First convex auricle; 35 - Second convex auricle; 41-Paper inlet; 42-Manual paper feed inlet; 50 - Pressing board; 51 - Pressing surface; 52-First extension portion; 521-First pressing surface; 53-Second extension portion; 531-Second pressing surface; 54 - Third protrusion; 55 - Main body; 56 - Rotating shaft; 60 - Paper feed assembly; 70 - Shredder Component; 80-Anti-nail structure; 81-First nail removal section; 811-First protrusion; 82-Second nail removal section; 821-Second protrusion; 90 - Paper. Detailed Implementation

[0027] The embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the embodiments described below with reference to the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions of the embodiments of this application.

[0028] Those skilled in the art will understand that, unless specifically stated otherwise, the terms "described" and "the" as used herein may also include plural forms. It should be further understood that the term "comprising" as used in the specification of this application means the presence of the stated features, integers, and / or components, but does not exclude implementations of other features, components, and / or combinations thereof supported by this art. The term "and / or" as used herein refers to at least one of the items defined by the term; for example, "A and / or B" can be implemented as "A," or as "B," or as "A and B."

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0030] The paper shredder provided in this application is intended to solve the above-mentioned technical problems in related technologies.

[0031] The technical solution of this application and how it solves the above-mentioned technical problems are described in detail below with specific embodiments. It should be noted that the following embodiments can be referenced, borrowed, or combined with each other, and the same terms, similar features, and similar implementation steps in different embodiments will not be described again.

[0032] This application provides a paper shredder 100, the structural schematic diagram of which is shown below. Figure 1 and Figure 2 As shown, it includes: Paper tray 30 has a paper tray surface 31; a paper inlet 41 is provided on the paper tray 30.

[0033] The pressing board 50 has a pressing surface 51 facing the paper support surface 31.

[0034] The staple removal structure 80 includes a first staple removal part 81 disposed on the paper support surface 31.

[0035] The first staple removal part 81 and the paper pressing surface 51 are configured to cooperate in clamping the paper 90 and removing staples from the paper 90; or, the staple removal structure 80 further includes a second staple removal part 82 disposed on the paper pressing surface 51, and the first staple removal part 81 and the second staple removal part 82 are configured to cooperate in clamping the paper 90 and removing staples from the paper 90.

[0036] In this embodiment, the paper-supporting surface 31 of the paper tray 30 is used to support stacked paper with staples. The paper 90 can move through the paper inlet 41 on the paper tray 30 to the shredder assembly 70 of the shredder 100, and thus become shreds under the action of the shredder assembly 70. The paper-pressing surface 51 of the pressure plate 50 is arranged facing the paper-supporting surface 31, and the paper 90 is placed between the paper-supporting surface 31 and the pressure surface 51.

[0037] In this embodiment, the paper shredder 100 includes a staple removal structure 80, which removes staples from the paper 90, thereby separating multiple sheets of paper 90 that are stapled together. This releases the binding effect of the staples on the multiple sheets of paper, allowing each sheet of paper 90 to be fed into the paper inlet 41 and shredded by the paper shredder assembly 70 one by one, ensuring the reliability and efficiency of staple removal and shredding. Because the staples on the paper 90 are removed by the staple removal structure 80, the upper layer of paper 90 is prevented from being fed into the paper inlet 41 along with the lower layer of paper 90, and the upper layer of paper 90 is prevented from moving to the paper shredder assembly 70 together with the lower layer of paper 90. This avoids the blockage or overload problems caused by multiple sheets of paper being caught by the paper shredder assembly 70.

[0038] In this embodiment, the first staple removal part 81 of the staple removal structure 80 is disposed on the paper support surface 31. The first staple removal part 81 can cooperate with the paper pressing surface 51 to clamp the paper 90 and remove the staples on the paper 90. Alternatively, the first staple removal part 81 of the staple removal structure 80 is disposed on the paper support surface 31, and the second staple removal part 82 of the staple removal structure 80 is disposed on the paper pressing surface 51. The first staple removal part 81 can also cooperate with the second staple removal part 82 to clamp the paper 90 and remove the staples on the paper 90.

[0039] like Figure 4 and Figure 6 As shown, the first staple removal part 81 and the paper pressing surface 51 cooperate, or the first staple removal part 81 and the second staple removal part 82 cooperate, to form a clamping effect on the middle paper 90. The lower paper 90 is rubbed by the paper feeding assembly 60 and moves towards the paper shredding assembly 70. The paper shredding assembly 70 pulls the lower paper 90, making the lower paper 90 shorter and the lower paper 90 (e.g., the tail end) is stapled to the upper paper 90. The movement of the lower paper 90 pulls the upper paper 90. The lower paper 90 is pulled upward by the upper paper 90 in the opposite direction and curls up. The upper paper 90 is driven to arch downward or curl downward.

[0040] Under the clamping force provided by the first staple removal part 81 and the paper pressing surface 51, or the first staple removal part 81 and the second staple removal part 82, and the force provided by the upward tilting of the lower layer paper 90 and the downward tilting of the upper layer paper 90, the staples that bind the multiple layers of paper together are removed at the position where the first staple removal part 81 and the paper pressing surface 51 are engaged, or at the position where the first staple removal part 81 and the second staple removal part 82 are engaged. This not only achieves the effect of staple removal, but also separates the multiple layers of paper, preventing the upper layer of paper with staples from entering the shredder assembly 70 along with the lower layer of paper.

[0041] Under the clamping of the first staple removal section 81 and the paper pressing surface 51, or under the clamping of the first staple removal section 81 and the second staple removal section 82, the risk of multiple sheets of paper being bitten by the paper shredder 70 together, causing jamming or overload, is reduced, thus ensuring the reliability of staple removal and paper shredding.

[0042] Optionally, such as Figures 1 to 3 as well as Figure 5 As shown in the embodiment of this application, the paper shredder 100 further includes a body 20 and a cover that can be opened and closed on the body 20. A paper tray 30 is disposed on the body 20, with the paper-holding surface 31 of the paper tray 30 facing the body 20. A pressure plate 50 is disposed on the cover. The cover is opened to place paper, and when the cover is closed, the paper is located between the paper tray 30 and the pressure plate 50.

[0043] Optionally, such as Figure 1 and Figure 2 As shown in the embodiment of this application, the paper shredder 100 further includes a paper-feeding assembly 60 and a paper-shredding assembly 70. The paper-feeding assembly 60 is disposed on the machine body 20 and near the paper inlet 41, and the paper-shredding assembly 70 is disposed on the machine body 20 and located below the paper inlet 41. The paper-feeding assembly 60 is used to agitate the paper, causing the paper to move through the paper inlet 41 towards the paper-shredding assembly 70. The paper-shredding assembly 70 is used to cut the paper into small pieces, thereby achieving an automatic paper-shredding effect.

[0044] Optionally, such as Figure 5 and Figure 6 As shown in the embodiments of this application, the first staple removal part 81 and the paper pressing surface 51 cooperate to clamp the paper 90, or the first staple removal part 81 and the second staple removal part 82 cooperate to clamp the paper 90. The distance between the first staple removal part 81 and the paper pressing surface 51, or the distance between the first staple removal part 81 and the second staple removal part 82, is equal to or close to the thickness of the clamped paper. When there are staples on the paper, the thickness of the staples is greater than the thickness of the paper. In this way, the staples on the paper move with the paper to the first staple removal part 81 and the paper pressing surface 51. When the first staple removal part 81 and the second staple removal part 82 are joined together, the thickness of the staple on the paper is greater than the distance between the first staple removal part 81 and the paper pressing surface 51, or the distance between the first staple removal part 81 and the second staple removal part 82. As a result, the first staple removal part 81 and the paper pressing surface 51, or the first staple removal part 81 and the second staple removal part 82, can block the staple on the paper. The paper continues to move towards the paper inlet 41 under the rubbing action of the paper feeding assembly 60, while the staple is intercepted and torn off the paper, thereby achieving the staple removal effect.

[0045] In some optional embodiments of this application, such as Figures 2 to 4 As shown, when the first staple removal part 81 and the second staple removal part 82 cooperate to clamp the paper 90 and remove staples from the paper 90, at least one of the first staple removal part 81 and the second staple removal part 82 includes a protrusion.

[0046] In this embodiment, the first staple removal part 81 and the second staple removal part 82 cooperate to clamp the paper 90. When the paper 90 moves toward the paper inlet 41, the protrusions can block the staples on the paper 90. Under the pulling action of the moving paper 90, the staples are pulled off the paper 90, thereby achieving the effect of staple removal and separating multiple layers of paper. This prevents the paper with staples from being pulled together with the lower layer of paper and shredded by the paper shredder 70, thus avoiding stalling or overload.

[0047] Optionally, such as Figures 2 to 4 As shown, in this application, the first nail removal part 81 includes a first protrusion 811, and the second nail removal part 82 includes a second protrusion 821 that corresponds to and cooperates with the first protrusion 811.

[0048] In this embodiment, the first protrusion 811 and the second protrusion 821 cooperate to clamp the paper 90 and prevent the nails on the paper from moving with the paper when the lower paper 90 moves. Under the pulling force of the paper, the nails can be pulled off the paper, achieving the nail removal effect. This separates the multiple layers of paper that are fixed together by nails, so that the multiple layers of paper can move to the shredding assembly 70 layer by layer and be shredded, ensuring the reliability and efficiency of nail removal and shredding.

[0049] The embodiments of this application, by setting the first protrusion 811 and the second protrusion 821, can achieve the functions and effects of pre-forming clamping, pre-blocking of paper with nails, and separating multiple layers of paper.

[0050] Of course, in other optional embodiments of this application, the first nail removal part 81 may include a protrusion and the second nail removal part 82 may include a groove adapted to the protrusion, or the first nail removal part 81 may include a groove and the second nail removal part 82 may include a protrusion adapted to the groove, depending on actual needs.

[0051] In the embodiments of this application, the clamping effect and nail removal effect can be enhanced by the cooperation of protrusions with each other, protrusions with grooves, or grooves with protrusions.

[0052] Optionally, such as Figures 2 to 4 As shown in the embodiment of this application, a protrusion may be provided on the paper-supporting surface 31, and a protrusion may also be provided at the corresponding position on the paper-pressing surface 51 (when the machine cover and the machine body 20 are closed, the orthographic projections of the protrusions on the paper-pressing surface 51 and the protrusions on the paper-supporting surface 31 on the horizontal plane intersect). The protrusions on the paper-supporting surface 31 and the protrusions on the paper-pressing surface 51 work together to achieve the effect of clamping the paper and removing the staples from the paper.

[0053] Of course, in other optional embodiments of this application, protrusions can be provided on the paper-supporting surface 31 and corresponding grooves can be provided at the corresponding positions on the paper-pressing surface 51, so that the protrusions on the paper-supporting surface 31 and the grooves on the paper-pressing surface 51 cooperate to form a paper-clamping 90 and a nail-removing effect; or, grooves can be provided on the paper-supporting surface 31 and corresponding protrusions can be provided at the corresponding positions on the paper-pressing surface 51, so that the grooves on the paper-supporting surface 31 and the protrusions on the paper-pressing surface 51 cooperate to form a paper-clamping 90 and a nail-removing effect.

[0054] Of course, in other alternative embodiments of this application, such as Figure 2 , Figure 5 and Figure 6 As shown, the first staple removal part 81 that cooperates with the paper pressing surface 51 (i.e., when the first staple removal part 81 and the paper pressing surface 51 cooperate to clamp the paper 90 and remove staples from the paper 90) includes a protrusion. The protrusion is provided on the paper holding surface 31.

[0055] In this embodiment, the protrusion on the paper support surface 31 and the paper pressing surface 51 cooperate to clamp the paper 90. When the lower layer of paper 90 moves, the protrusion on the paper support surface 31 can prevent the nails on the paper from moving with the paper. Thus, the nails can be pulled off the paper under the pulling force of the paper, achieving the nail removal effect. This separates the multiple layers of paper that are fixed together by nails, allowing the multiple layers of paper to move to the shredding component 70 layer by layer and be shredded, ensuring the reliability and efficiency of nail removal and paper shredding.

[0056] This embodiment of the application provides a protrusion on the paper support surface 31 and makes the protrusion cooperate with the paper pressing surface 51, which can achieve the functions and effects of pre-forming clamping, pre-blocking of paper with nails, and separating multiple layers of paper.

[0057] Optionally, such as Figure 1 , Figure 7 and Figure 8 As shown in this embodiment, the protrusions (including protrusions on the paper-supporting surface 31 or the paper-pressing surface 51) extend in a direction parallel to the extension direction of the paper inlet 41. The paper moves towards the paper inlet 41 under the agitation of the paper-feeding assembly 60. The direction of paper movement is perpendicular to the extension direction of the paper inlet 41. By setting the protrusions on the paper-supporting surface 31 or the paper-pressing surface 51 in this embodiment to extend in a direction parallel to the extension direction of the paper inlet 41, the paper can move in a direction perpendicular to the extension direction of the protrusions. This allows the protrusions to effectively block staples on the paper, achieving a reliable staple removal effect.

[0058] Optionally, such as Figure 1As shown in the embodiment of this application, the protrusion at the paper support surface 31 can be set at the position corresponding to the short side or long side of the paper with nails (the paper's twisting direction is towards the paper inlet 41 and the paper shredder 70). Regardless of whether the protrusion is located at the paper support surface 31 corresponding to the short side or long side of the paper, the protrusion is parallel or nearly parallel to the paper inlet 41.

[0059] Of course, in other optional embodiments of this application, the extending direction of the protrusion and the extending direction of the paper inlet 41 can be made at an angle according to actual needs; the angle can be acute or obtuse. This allows the paper to move in a direction that forms an angle with the extending direction of the protrusion, so that the protrusion can effectively block the staples on the paper and achieve a reliable staple removal effect.

[0060] Optionally, in the embodiments of this application, the positions, shapes, and extension directions of the mating protrusions and protrusions, or the mating protrusions and grooves, are the same or similar.

[0061] Optionally, in this embodiment, the protrusion can be a rib (i.e., a strip-shaped protrusion) parallel to or at an angle to the paper inlet 41. Optionally, in a cross-section perpendicular to the axial direction of the rib (i.e., a radial cross-section), the cross-sectional shape of the rib includes, but is not limited to, regular shapes such as circles, rectangles, and arcs, or other irregular shapes. Of course, in other optional embodiments of this application, the protrusion can also be a point-shaped protrusion or a surface-shaped protrusion, depending on actual needs.

[0062] Optionally, such as Figures 1 to 3 as well as Figure 5 As shown in the embodiment of this application, the paper support surface 31 includes a flat paper support surface 32 and an inclined paper support surface, with the paper inlet 41 located on the flat paper support surface 32. The inclined paper support surface is located on at least one side of the paper inlet 41.

[0063] In this embodiment, the inclined paper support surface is located on at least one side of the paper inlet 41 at the flat paper support surface 32, and the inclined paper support surface and the flat paper support surface 32 are connected.

[0064] Optionally, such as Figures 1 to 3 as well as Figure 5 As shown in this embodiment, the inclined paper support is tilted towards the side away from the pressure plate 50 along the direction away from the paper inlet 41.

[0065] In this embodiment, the inclined paper support surface has a first side close to the flat paper support surface 32 and a second side away from the flat paper support surface 32. The first side of the inclined paper support surface is connected to the flat paper support surface 32, and the second side of the inclined paper support surface is located on the side of the flat paper support surface 32 away from the pressure plate 50, that is, the inclined paper support surface gradually moves away from the pressure plate 50 from the first side to the second side.

[0066] Optionally, such as Figures 1 to 3 as well as Figure 5As shown in the embodiment of this application, the paper support surface 31 includes: a first inclined paper support surface 331 disposed on the first side of the paper inlet 41 and a second inclined paper support surface 332 disposed on the second side of the paper inlet 41. The first inclined paper support surface 331 and the second inclined paper support surface 332 are located on both sides of the flat paper support surface 32 in a direction perpendicular to the extending direction of the paper inlet 41.

[0067] Optionally, such as Figures 1 to 4 As shown in the embodiment of this application, the first staple removal part 81 is disposed on the first inclined paper support surface 331 on the first side of the paper inlet 41; the paper pressing surface 51 includes a first paper pressing surface 521 corresponding to the first inclined paper support surface 331. The first paper pressing surface 521 is provided with a second staple removal part 82 that cooperates with the first staple removal part 81.

[0068] In this embodiment, the first nail removal part 81 on the first inclined paper support surface 331 and the second nail removal part 82 on the first paper pressing surface 521 cooperate to clamp the paper 90 and remove the nails on the paper 90, which can ensure the reliability and efficiency of nail removal and paper shredding.

[0069] like Figure 4 and Figure 6 As shown in this embodiment, during the shredding process, when the lower layer of paper 90 moves towards the paper inlet 41 under the shredding action of the paper feeding assembly 60, since the lower layer of paper 90 is stapled together with the upper layer of paper 90, when the bottom layer of paper is shredded and driven, the upper layer of paper is pulled towards the first inclined paper support surface 331 due to the reverse pull of the staples and the downward pressure of the pressure plate. Under the action of the reverse pull, the paper 90 arches at the first inclined paper support surface 331. By providing a first staple removal part 81 on the first inclined paper support surface 331 and cooperating with a second staple removal part 82 on the first pressure surface 521, the paper 90 can be clamped, and due to the clamping force formed, the staples are left at the cooperation of the first staple removal part 81 and the second staple removal part 82, or slide into the paper support channel. With the first staple removal part 81 on the first inclined paper support surface 331 and the second staple removal part 82 on the first paper pressing surface 521 clamping together, the problem of multiple sheets of paper being bitten by the paper shredder 70 together, causing jamming or overload, is reduced, ensuring the reliability of staple removal and separating the shredded paper.

[0070] Optionally, such as Figure 1 As shown in the embodiment of this application, at least two first staple removal parts 81 are provided on the first inclined paper support surface 331; the at least two first staple removal parts 81 are distributed along the extension direction of the paper inlet 41.

[0071] During the paper shredding process, the paper moves in a direction perpendicular to the paper inlet 41. In this embodiment, at least two first nail removal parts 81 on the first inclined paper support surface 331 are arranged to be distributed along the extension direction of the paper inlet 41. That is, the distribution direction of the at least two first nail removal parts 81 is perpendicular to the paper movement direction, which improves the blocking effect and probability of the at least two first nail removal parts 81 on the nails on the paper, thereby improving the reliability and efficiency of nail removal.

[0072] Of course, in other optional embodiments of this application, at least two first nail removal portions 81 on the first inclined paper support surface 331 can be connected as a whole, depending on actual needs.

[0073] Optionally, such as Figure 7 and Figure 8 As shown in the embodiment of this application, at least two second staple removal parts 82 are provided on the first paper pressing surface 521; the at least two second staple removal parts 82 are arranged in a one-to-one correspondence with at least two first staple removal parts 81.

[0074] In this embodiment, the first staple removal part 81 and the second staple removal part 82 cooperate one-to-one to clamp the paper and remove staples from the paper. At least two second staple removal parts 82 are distributed in a direction parallel to the extension direction of the paper inlet 41.

[0075] Optionally, such as Figure 1 and Figure 3 As shown in the embodiment of this application, the first staple removal part 81 includes a first protrusion 811, and at least two first protrusions 811 of the first staple removal parts 81 are distributed in a direction parallel to the extending direction of the paper inlet 41, and each extends in the extending direction of the paper inlet 41. The second staple removal part 82 includes a second protrusion 821, and at least two second protrusions 821 of the second staple removal parts 82 are distributed in a direction parallel to the extending direction of the paper inlet 41, and each extends in the extending direction of the paper inlet 41. The first protrusions 811 of the at least two first staple removal parts 81 and the second protrusions 821 of the at least two second staple removal parts 82 are provided in a one-to-one correspondence.

[0076] In this embodiment, the first protrusion 811 on the first inclined paper support surface 331 and the second protrusion 821 on the first paper pressing surface 51 cooperate to clamp the paper, which generates greater resistance to the staples on the paper, resulting in stronger and earlier staple removal and indirectly separating the layers of paper. The cooperation between the first protrusion 811 on the first inclined paper support surface 331 and the second protrusion 821 on the first paper pressing surface 51 avoids the problem of multiple sheets of paper being rubbed into the paper shredder 70 together due to not being separated, causing stalling or overload.

[0077] It should be noted that, in the embodiments of this application, the corresponding settings include position correspondence, shape correspondence, and length correspondence, etc.

[0078] Of course, in other optional embodiments of this application, the first staple removal part 81 may include a protrusion, and the second staple removal part 82 may include a groove adapted to the protrusion, depending on actual needs; or, the first staple removal part 81 may include a groove, and the second staple removal part 82 may include a protrusion adapted to the groove. At least two protrusions are distributed in a direction parallel to the extending direction of the paper inlet 41, and at least two grooves are distributed in a direction parallel to the extending direction of the paper inlet 41. At least two protrusions and at least two grooves are provided in a one-to-one correspondence.

[0079] Of course, in other optional embodiments of this application, at least two first nail removal portions 81 on the first inclined paper support surface 331 may be made to cooperate with the first paper pressing surface 521 as needed.

[0080] Optionally, such as Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown in this embodiment, the first staple removal part 81 is disposed on the second inclined paper support surface 332 on the second side of the paper inlet 41; the paper pressing surface 51 includes a second paper pressing surface 531 corresponding to the second inclined paper support surface 332. The first staple removal part 81 and the second paper pressing surface 531 cooperate.

[0081] In this embodiment, the first nail removal part 81 and the second paper pressing surface 531 on the second inclined paper support surface 332 cooperate to clamp the paper and remove the nails on the paper, which can ensure the reliability and efficiency of nail removal and paper shredding.

[0082] like Figure 4 and Figure 6 As shown in this embodiment, during the shredding process, when the lower layer of paper 90 moves towards the paper inlet 41 under the rubbing action of the paper feed assembly 60, since the lower layer of paper 90 is stapled together with the upper layer of paper 90, when the bottom layer of paper is rubbed up, the upper layer of paper is pulled towards the second inclined paper support surface 332 due to the reverse pull of the staples and the downward pressure of the pressure plate. Under the action of the reverse pull, the paper 90 arches at the second inclined paper support surface 332. By providing a first staple removal part 81 on the second inclined paper support surface 332 and cooperating with the second pressure surface 531, the paper 90 can be clamped, and due to the clamping force, the staples are left at the cooperation between the first staple removal part 81 and the second pressure surface 531, or slide into the paper support channel. With the first staple removal part 81 and the second pressure surface 531 clamping on the second inclined paper support surface 332, the problem of multiple sheets of paper being bitten together by the shredding assembly 70, causing blockage or overload, is reduced, ensuring the reliability of staple removal and separating the shredded paper.

[0083] Optionally, such as Figure 1 As shown in the embodiment of this application, at least two first staple removal parts 81 are provided on the second inclined paper support surface 332; the at least two first staple removal parts 81 are distributed along the extension direction of the paper inlet 41.

[0084] During the paper shredding process, the paper moves in a direction perpendicular to the paper inlet 41. In this embodiment, at least two first nail removal parts 81 on the second inclined paper support surface 332 are arranged to be distributed along the extension direction of the paper inlet 41. That is, the distribution direction of the at least two first nail removal parts 81 is perpendicular to the paper movement direction, which improves the blocking effect and probability of the at least two first nail removal parts 81 on the nails on the paper, thereby improving the reliability and efficiency of nail removal.

[0085] Of course, in other optional embodiments of this application, at least two first nail removal portions 81 on the second inclined paper surface 332 can be connected as a whole, depending on actual needs.

[0086] Optionally, such as Figure 1 , Figures 5 to 7 As shown in the embodiment of this application, at least two first staple removal parts 81 cooperate with the second paper pressing surface 531 to clamp the paper 90 and remove staples from the paper 90.

[0087] Optionally, such as Figure 1 and Figure 5 As shown in the embodiment of this application, the first staple removal part 81 on the second inclined paper support surface 332 includes a protrusion, and the protrusions of at least two first staple removal parts 81 are distributed in a direction parallel to the extension direction of the paper inlet 41, and each extends along the extension direction of the paper inlet 41.

[0088] In this embodiment, the protrusion on the second inclined paper support surface 332 and the second paper pressing surface 531 cooperate to clamp the paper 90, which generates great resistance to the staples on the paper 90, resulting in stronger and earlier staple removal and indirectly separating the layers of paper. The cooperation between the protrusion on the second inclined paper support surface 332 and the second paper pressing surface 531 avoids the problem of multiple sheets of paper being rubbed into the paper shredder 70 together due to not being separated, causing stalling or overload.

[0089] Of course, in other optional embodiments of this application, at least two second staple removal parts 82 may be provided on the second paper pressing surface 531 according to actual needs, and the at least two second staple removal parts 82 are provided in a one-to-one correspondence with at least two first staple removal parts 81.

[0090] Optionally, in this embodiment, the first staple removal portion 81 on the second inclined paper support surface 332 includes a first protrusion 811, and the second staple removal portion 82 on the second paper pressing surface 531 includes a second protrusion 821 corresponding to the first protrusion 811; or, the first staple removal portion 81 on the second inclined paper support surface 332 includes a protrusion, and the second staple removal portion 82 on the second paper pressing surface 531 includes a groove adapted to the protrusion; or, the first staple removal portion 81 on the second inclined paper support surface 332 includes a groove, and the second staple removal portion 82 on the second paper pressing surface 531 includes a protrusion adapted to the groove. At least two protrusions are distributed in a direction parallel to the extending direction of the paper inlet 41, and at least two grooves are distributed in a direction parallel to the extending direction of the paper inlet 41. At least two protrusions and at least two grooves are provided in a one-to-one correspondence.

[0091] Optionally, such as Figure 7 and Figure 8 As shown in the embodiment of this application, the paper pressing surface 51 is provided with at least two second staple removal parts 82 and at least one third protrusion 54; the at least two second staple removal parts 82 are distributed along the extension direction of the paper inlet 41; the third protrusion 54 is disposed between two adjacent second staple removal parts 82, and each of the at least one third protrusion 54 extends in a direction perpendicular to the paper inlet 41.

[0092] In this embodiment, the third protrusion 54 can press the paper located between the paper support surface 31 and the paper pressing surface 51 toward the paper support surface 31, thereby achieving a better clamping effect. When the paper staples move toward the paper inlet 41 along with the paper, the third protrusion 54 can block the paper staples to a certain extent, thereby helping to remove the paper staples.

[0093] Optionally, such as Figure 1 , Figure 7 and Figure 8 As shown in the embodiment of this application, the first inclined paper support surface 331 is provided with two first nail removal parts 81, and the first paper pressing surface 521 is provided with two second nail removal parts 82 and two third protrusions 54.

[0094] The first staple removal part 81 on the first inclined paper support surface 331 includes a first protrusion 811. Two first protrusions 811 on the first inclined paper support surface 331 are distributed in a direction parallel to the paper inlet 41 and each extends in the direction of the paper inlet 41.

[0095] The second staple removal part 82 on the first paper pressing surface 521 includes a second protrusion 821 corresponding to the first protrusion 811. Two second protrusions 821 on the first paper pressing surface 521 are distributed parallel to the paper inlet 41 and extend along the same direction. A third protrusion 54 on the first paper pressing surface 521 extends perpendicularly to the second protrusions 821, and two third protrusions 54 are located between the two second protrusions 821. In a cross-section perpendicular to the extension direction of the paper inlet 41, the cross-sectional shape of the third protrusion 54 is triangular or similar to a triangle. The top wall of the third protrusion 54 is in contact with or close to the first inclined paper support surface 331. The third protrusion 54 can press the paper onto the first inclined paper support surface 331, and during the movement of the paper towards the paper inlet 41, the third protrusion 54 also provides some obstruction to staples on the paper, helping to remove staples from the paper.

[0096] In this embodiment, the first paper pressing surface 521 is provided with protrusions arranged in two directions, namely, a second protrusion 821 along the direction of the paper inlet 41 and a third protrusion 54 perpendicular to the direction of the paper inlet 41.

[0097] Optionally, such as Figure 7 and Figure 8 As shown in the embodiments of this application, the third protrusion 54 includes, but is not limited to, a rib.

[0098] Optionally, such as Figure 1 As shown in the embodiment of this application, the first staple removal part 81 on the first inclined paper support surface 331 and the second inclined paper support surface 332 are located at both ends of the stapled paper and arranged within the size range of the paper being rolled up by the staples from the paper inlet 41. The staples are on the ends of the paper, which can be on the long side or the short side. Whenever the paper moves towards the paper inlet 41, when the upper layer of paper has staples, the protrusions arranged within the size range of the paper ends being rolled up by the staples from the paper inlet 41 clamp the paper, thus achieving the effect of separating multiple layers of paper and removing staples.

[0099] Optionally, such as Figure 1 , Figure 7 and Figure 8 As shown in the embodiment of this application, the protrusions of at least two first staple removal portions 81 are ribs extending along the extension direction of the paper inlet 41, and the ribs of at least two first staple removal portions 81 are distributed in a direction parallel to the extension direction of the paper inlet 41. Of course, in other optional embodiments of this application, the protrusions of at least two first staple removal portions 81 can also be dot-shaped protrusions or surface-shaped protrusions, and the at least two dot-shaped protrusions or surface-shaped protrusions can be distributed in a direction parallel to the extension direction of the paper inlet 41, or multiple dot-shaped protrusions or surface-shaped protrusions can be distributed in an array, or other arbitrary forms can be used, without limitation.

[0100] Optionally, such as Figure 1As shown in the embodiment of this application, the first inclined paper support surface 331 is provided with a first lug 34. The top surface of the first lug 34 is flush with or nearly flush with the flat paper support surface 32. The first lug 34 is located in the middle section of the first inclined paper support surface 331 along the extension direction of the paper inlet 41, dividing the first inclined paper support surface 331 into two parts. Each of the two parts of the first inclined paper support surface 331 is provided with at least one first nail removal part 81 near the flat paper support surface 32.

[0101] The top surface of the first lug 34 can support the middle of the paper. As the paper moves toward the paper inlet 41, the corner or edge of the paper corresponding to the first inclined paper support surface 331 (and the pins located on the corner or edge of the paper) will curl toward the middle. Due to the provision of the first lug 34, the degree of curling of the paper toward the middle is reduced, and the distance between the pins on the paper and the first pin removal part 81 on the first inclined paper support surface 331 is shortened, making it easier for the pins on the paper to be blocked by the first pin removal part 81, thereby improving the reliability and efficiency of pin removal.

[0102] Optionally, one or two or more first lugs 34 may be provided on the first inclined paper support surface 331 along the extending direction of the paper inlet 41.

[0103] Optionally, such as Figure 1 As shown in the embodiment of this application, the second inclined paper support surface 332 is provided with a second lug 35. The top surface of the second lug 35 is flush with or nearly flush with the flat paper support surface 32. The second lug 35 is located in the middle section of the second inclined paper support surface 332. The second inclined paper support surface 332 includes two parts located on both sides of the second lug 35. Each of the two parts of the second inclined paper support surface 332 is provided with at least one first nail removal part 81 near the flat paper support surface 32.

[0104] The top surface of the second lug 35 can support the middle of the paper. As the paper moves toward the paper inlet 41, the corner or edge of the paper corresponding to the second inclined paper surface 332 (and the pins located on the corner or edge of the paper) will curl toward the middle. Due to the provision of the second lug 35, the degree of curling of the paper toward the middle is reduced, and the distance between the pins on the paper and the first pin removal part 81 on the second inclined paper surface 332 becomes shorter, making it easier for the pins on the paper to be blocked by the first pin removal part 81, thereby improving the reliability and efficiency of pin removal.

[0105] Of course, in some other optional embodiments of this application, the inclined paper support surface (e.g., at least one of the first inclined paper support surface 331 and the first inclined paper support surface 331) can be arranged perpendicularly to the flat paper support surface 32, with the inclined paper support surface located on the side of the flat paper support surface 32 away from the pressure plate 50, or the inclined paper support surface (e.g., at least one of the first inclined paper support surface 331 and the first inclined paper support surface 331) can be inclined towards the side away from the pressure plate 50 in the direction of the paper inlet 41 near the flat paper support surface 32. At this time, depending on the actual situation and needs, the first staple removal part 81 can be set at the corner where the inclined paper support surface (e.g., at least one of the first inclined paper support surface 331 and the first inclined paper support surface 331) connects with the flat paper support surface 32, so that the first staple removal part 81 cooperates with the paper pressing surface 51 or with the second staple removal part 82 on the paper pressing surface 51 to clamp the paper 90 and remove the staples on the paper 90; or, the corner where the inclined paper support surface (e.g., at least one of the first inclined paper support surface 331 and the first inclined paper support surface 331) connects with the flat paper support surface 32 can be used as the first staple removal part 81 to cooperate with the paper pressing surface 51 or with the second staple removal part 82 on the paper pressing surface 51 to clamp the paper 90 and remove the staples on the paper 90.

[0106] Optionally, such as Figure 7 As shown in this embodiment, the pressing board 50 includes a main body portion 55 and an extension portion connected to the main body portion 55. The main body portion 55 is connected to the machine cover, and the extension portion is located on at least one side of the main body portion 55 away from the paper inlet 41. The main body portion 55 has a main pressing surface corresponding to the flat paper support surface 32.

[0107] Optionally, such as Figure 1 , Figure 2 and Figure 7 As shown in this embodiment, the first extension portion 52 located on the first side of the main body portion 55 corresponding to the paper inlet 41 can be fixed to the first side of the main body portion 55, serving as the paper pressing portion of the entire paper pressing board 50. The first extension portion 52 has a first paper pressing surface 521.

[0108] Optionally, the first extension portion 52 and the main body portion 55 are integrally formed.

[0109] Optionally, such as Figure 7 and Figure 8 As shown in the embodiment of this application, the first extension portion 52 and the main body portion 55 are movably connected, and the first extension portion 52 is movably disposed below the cover.

[0110] Optionally, such as Figure 7 and Figure 8 As shown in the embodiment of this application, the first extension portion 52 is detachably disposed on the main body portion 55, so that the first extension portion 52 can serve as an active part of the main body portion 55.

[0111] Optionally, such as Figure 7 and Figure 8 As shown in the embodiment of this application, the first extension portion 52 is pivotally connected to the main body portion 55 via a pivot 56.

[0112] Optionally, such as Figure 2 and Figure 7 As shown in this embodiment, the second extension portion 53 located on the second side of the main body portion 55 corresponding to the paper inlet 41 can be fixed to the second side of the main body portion 55, serving as the paper pressing portion of the entire paper pressing board 50. The second extension portion 53 has a second paper pressing surface 531.

[0113] Optionally, the second extension portion 53 and the main body portion 55 are integrally formed.

[0114] Of course, in other optional embodiments of this application, the second extension portion 53 and the main body portion 55 may be movably connected as needed, with the second extension portion 53 serving as the movable portion of the main body portion 55.

[0115] Optionally, in this embodiment, the paper pressing surface 51 further includes a flat paper pressing surface (or a near-horizontal paper pressing surface), which is disposed opposite to the flat paper supporting surface 32. Optionally, the bottom surface of the main body portion 55 serves as the flat paper pressing surface.

[0116] Of course, in some other optional embodiments of this application, the first staple removal part 81 can also be disposed on the flat paper support surface 32 according to actual needs. Optionally, the first staple removal part 81 on the flat paper support surface 32 includes a protrusion that cooperates with the paper pressing surface 51 (e.g., the flat paper pressing surface mentioned above), or with the protrusion or groove of the second staple removal part 82 on the paper pressing surface 51 (e.g., the flat paper pressing surface mentioned above), to clamp the paper 90 and remove the staples on the paper 90; or, the first staple removal part 81 on the flat paper support surface 32 includes a groove that cooperates with the protrusion of the second staple removal part 82 on the paper pressing surface 51 (e.g., the flat paper pressing surface mentioned above), to clamp the paper 90 and remove the staples on the paper 90.

[0117] Optionally, in this embodiment, when the first nail removal part 81 on the flat paper support 32 includes a protrusion, the height of the protrusion on the flat paper support 32 is less than the height of the paper feeding roller of the paper feeding assembly 60 protruding from the flat paper support 32. While ensuring that the paper 90 is clamped and the nails on the paper 90 are removed, the paper 90 can be smoothly rubbed and moved towards the paper inlet 41.

[0118] This application provides an automatic paper shredder with a reinforced antimony nail structure (i.e., nail removal structure 80). The first nail removal part 81 on the paper support surface 31 (or the inclined paper support surface) plays a key role in nail removal. The corresponding paper pressing surface 51 or the second nail removal part 82 on the paper pressing surface 51 plays a passive role, removing nails when a small amount of paper remains.

[0119] The operation steps of the paper shredder 100 provided in this application embodiment include: 1. Opening the machine cover, placing paper into the paper tray of the machine body 20, and closing the machine cover. The first nail removal part 81 on the tray 30 and the paper pressing surface 51 on the pressing plate 50 cooperate, or the first nail removal part 81 on the tray 30 and the second nail removal part 82 on the pressing plate 50 cooperate to clamp the paper. 2. Activating the paper feeding assembly 60 and the paper shredding assembly 70, the lower layer of paper is shredded by the paper feeding assembly 60 into the blade core of the paper shredding assembly 70. During the shredding process, the nails on the paper are blocked by the first nail removal part 81 and the paper pressing surface 51, or the first nail removal part 81 and the second nail removal part 82, and are pulled off the paper, achieving the nail removal effect. The nails fixing multiple layers of paper are removed, the multiple layers of paper are separated, and thus multiple layers of paper can be shredded one by one.

[0120] Optionally, such as Figure 2 , Figure 4 and Figure 6 As shown in the embodiment of this application, the first staple removal part 81 includes a protrusion. When the protrusion of the first staple removal part 81 engages with the paper pressing surface 51, or when the protrusion of the first staple removal part 81 engages with the protrusion of the second staple removal part 82, it can clamp a thick multi-layered paper and remove staples from the paper. When the protrusion of the first staple removal part 81 engages with the groove of the second staple removal part 82, or when the first staple removal part 81 includes a groove and the second staple removal part 82 includes a protrusion, the groove of the first staple removal part 81 engages with the protrusion of the second staple removal part 82, it can clamp a thin multi-layered paper and remove staples from the paper.

[0121] Optionally, in this embodiment, the first staple removal part 81 and the paper pressing surface 51 cooperate, or the first staple removal part 81 and the second staple removal part 82 cooperate, to clamp 3 to 15 sheets of paper. Of course, in other optional embodiments of this application, the first staple removal part 81 and the paper pressing surface 51, or the first staple removal part 81 and the second staple removal part 82, can be configured to clamp 1, 2, 16, or more sheets of paper, depending on actual needs. No limitation is made here.

[0122] Optionally, such as Figure 2 As shown in this embodiment, the machine cover is provided with a manual paper feed port 42, which penetrates the main body 55 of the pressure plate 50. When the machine cover and the machine body 20 are closed, the manual paper feed port 42 is located above and connected to the paper inlet 41. The other end of the manual paper feed port 42 is connected to the external environment. Paper can be manually fed into the machine through the manual paper feed port 42 and then fed through the paper inlet 41 to the shredder assembly 70 for shredding, thus achieving a manual paper shredding effect.

[0123] By applying the embodiments of this application, at least the following beneficial effects can be achieved: In this embodiment, the paper-supporting surface of the paper tray is used to support stacked paper with staples. The paper can move through the paper inlet on the paper tray to the shredding assembly of the shredder, where it is shredded by the shredding assembly. The paper-pressing surface of the pressure plate is positioned facing the paper-supporting surface, and the paper is placed between the paper-supporting surface and the pressure surface.

[0124] In this embodiment, the paper shredder includes a staple removal structure. This structure removes staples from the paper, separating multiple sheets of paper that are stapled together. This releases the staples from binding the sheets, allowing each sheet to be individually fed into the paper feed and shredded by the shredding assembly, ensuring the reliability and efficiency of the staple-removed shredding process. Because the staples are removed by the staple removal structure, upper sheets of paper are prevented from being fed into the paper feed along with lower sheets, and from moving to the shredding assembly together. This avoids the blockage or overload problems caused by multiple sheets of paper being caught in the shredding assembly.

[0125] In this embodiment, the first staple removal part of the staple removal structure is located on the paper support surface, and the first staple removal part can cooperate with the paper pressing surface to clamp the paper and remove the staples on the paper. Alternatively, the first staple removal part of the staple removal structure is located on the paper support surface, and the second staple removal part of the staple removal structure is located on the paper pressing surface, and the first staple removal part can also cooperate with the second staple removal part to clamp the paper and remove the staples on the paper.

[0126] The first staple removal part cooperates with the paper pressing surface, or the first staple removal part cooperates with the second staple removal part, to create a clamping effect on the middle paper. The lower layer of paper is rubbed by the paper feeding assembly and moves towards the paper shredder assembly. The paper shredder assembly pulls on the lower layer of paper, shortening it and fixing the lower layer of paper (e.g., the tail end) to the upper layer of paper. The movement of the lower layer of paper pulls on the upper layer of paper, causing the lower layer of paper to be pulled upwards by the upper layer of paper, while the upper layer of paper is driven to arch downwards or curl downwards.

[0127] Under the clamping force provided by the first staple removal part and the paper pressing surface, or the first staple removal part and the second staple removal part, and the force provided by the upward tilting of the lower layer of paper and the downward tilting of the upper layer of paper, the staples that bind multiple layers of paper together are removed at the position where the first staple removal part and the paper pressing surface are engaged, or the position where the first staple removal part and the second staple removal part are engaged. This not only achieves the effect of staple removal, but also separates multiple layers of paper, preventing the upper layer of paper with staples from entering the shredder along with the lower layer of paper.

[0128] Under the clamping of the first staple removal section and the paper pressing surface, or under the clamping of the first staple removal section and the second staple removal section, the risk of multiple sheets of paper being bitten by the paper shredder assembly at the same time, causing jamming or overload, is reduced, thus ensuring the reliability of staple removal and paper shredding.

[0129] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate directions or positional relationships based on the exemplary directions or positional relationships shown in the accompanying drawings. They are used to facilitate the description or simplification of the embodiments of this application and are not intended to indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0130] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0131] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0132] The above description is only a partial implementation of this application. It should be noted that for those skilled in the art, other similar implementation methods based on the technical concept of this application, without departing from the technical concept of this application, also fall within the protection scope of the embodiments of this application.

Claims

1. A paper shredder, characterized in that, include: A paper tray has a paper-supporting surface; the paper tray has a paper inlet opening. The pressure plate has a pressure surface facing the paper-supporting surface; The staple removal structure includes a first staple removal part disposed on the paper support surface; The first staple removal part and the paper pressing surface are configured to cooperate in clamping the paper and removing staples from the paper; or, the staple removal structure further includes a second staple removal part disposed on the paper pressing surface, wherein the first staple removal part and the second staple removal part are configured to cooperate in clamping the paper and removing staples from the paper.

2. The paper shredder according to claim 1, characterized in that, At least one of the first nail removal portion and the second nail removal portion includes a protrusion.

3. The paper shredder according to claim 1, characterized in that, The first staple removal part, which mates with the paper pressing surface, includes a protrusion.

4. The paper shredder according to claim 2, characterized in that, The first nail removal part includes a first protrusion, and the second nail removal part includes a second protrusion that corresponds to and engages with the first protrusion; or, The first nail removal part includes a protrusion, and the second nail removal part includes a groove adapted to the protrusion; or, The first nail removal part includes a groove, and the second nail removal part includes a protrusion adapted to the groove.

5. The paper shredder according to any one of claims 2 to 4, characterized in that, The protrusion extends in a direction parallel to the extension direction of the paper inlet.

6. The paper shredder according to any one of claims 2 to 4, characterized in that, The extension direction of the protrusion and the extension direction of the paper inlet form an angle; The included angle can be acute or obtuse.

7. The paper shredder according to claim 1, characterized in that, The paper tray includes: The paper is flat and the paper inlet is located on the flat paper surface. An inclined paper support surface located on at least one side of the paper inlet.

8. The paper shredder according to claim 7, characterized in that, The inclined paper support is tilted away from the pressure plate in a direction away from the paper inlet.

9. The paper shredder according to claim 7, characterized in that, The inclined paper support surface is perpendicular to the flat paper support surface and is located on the side of the flat paper support surface away from the pressing board; or, Along the direction close to the paper inlet, the inclined paper support is tilted towards the side away from the pressure plate.

10. The paper shredder according to claim 9, characterized in that, The first nail removal part is located at the corner where the inclined paper support surface and the flat paper support surface meet; or... The corner where the inclined paper support surface and the flat paper support surface meet serves as the first nail removal section.

11. The paper shredder according to claim 7, characterized in that, The first staple removal part is disposed on the first inclined paper support surface on the first side of the paper inlet; The paper pressing surface includes a first paper pressing surface corresponding to the first inclined paper supporting surface; The first staple removal part cooperates with the first paper pressing surface; or, the first paper pressing surface is provided with a second staple removal part that cooperates with the first staple removal part.

12. The paper shredder according to claim 7, characterized in that, The first staple removal part is disposed on the second inclined paper support surface on the second side of the paper inlet; The paper-pressing surface includes a second paper-pressing surface corresponding to the second inclined paper-supporting surface; The first staple removal part and the second paper pressing surface cooperate; or, the second paper pressing surface is provided with a second staple removal part that cooperates with the first staple removal part.

13. The paper shredder according to claim 11, characterized in that, At least two of the first nail removal parts are provided on the first inclined paper support surface; At least two of the first staple removal sections are distributed along the extension direction of the paper inlet.

14. The paper shredder according to claim 13, characterized in that, At least two second staple removal sections are provided on the first paper pressing surface; At least two second nail removal sections are provided in a one-to-one correspondence with at least two first nail removal sections.

15. The paper shredder according to claim 12, characterized in that, The second inclined paper support surface is provided with at least two of the first nail removal parts; At least two of the first staple removal sections are distributed along the extension direction of the paper inlet.

16. The paper shredder according to claim 15, characterized in that, At least two of the first staple removal parts mate with the second paper pressing surface; or... The second paper pressing surface is provided with at least two second staple removal parts, and the at least two second staple removal parts are arranged in a one-to-one correspondence with the at least two first staple removal parts.

17. The paper shredder according to claim 1, characterized in that, The paper pressing surface is provided with at least two second staple removal parts and at least one third protrusion; At least two second staple removal sections are distributed along the extension direction of the paper inlet; The third protrusion is disposed between two adjacent second staple removal portions, and at least one of the third protrusions extends in a direction perpendicular to the paper inlet.

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