An automatic paper shredder

Abstract

The utility model relates to automatic paper shredder technical field, specifically disclose a kind of automatic paper shredder, the automatic paper shredder includes casing, paper shredder core, paper feed mechanism and cover lifting. The automatic paper shredder of the utility model is set to paper platform in paper shredder core, simultaneously, paper feed roller group is rotatably set in paper shredder core, so setting can guarantee the fixing of relative position between paper platform and paper feed roller group, to ensure that automatic paper feeding is reliable, will not because cover lifting and the self-weight of paper to be shredded will give paper shredder core larger downward pressure, lead to the relative position between paper platform and paper feed roller group is smaller, effectively solve the automatic paper shredder in prior art exists automatic paper feeding is not smooth or not paper feeding problem;And, there is gap between paper platform and casing, so when paper shredder core works, vibration will not be transmitted to casing by paper platform, to reduce noise, improve the sound insulation effect of automatic paper shredder.

Description

Technical Field

[0001] This utility model relates to the field of automatic paper shredders, and in particular to an automatic paper shredder. Background Technology

[0002] Currently, in existing automatic paper shredders, the paper placement platform is usually fixed on the top cover. In order to achieve automatic shredding, the paper to be shredded is subjected to pressure from the pressure plate. Under the weight of the pressure plate and the paper to be shredded, a large downward pressure is exerted on the shredder core. Since the paper feed roller and the shredder core are connected by rotation, the relative position between the paper feed roller and the paper placement platform will decrease, resulting in unsmooth automatic paper feeding or failure to feed paper, which affects the user experience. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic paper shredder to solve the problems of uneven paper feeding or failure to feed paper in existing automatic paper shredders.

[0004] To address the aforementioned problems, this utility model provides an automatic paper shredder, comprising: a housing; a shredder core disposed within the cavity of the housing, the shredder core having a paper inlet and a shredding chamber communicating with each other; a paper feeding mechanism including a paper placement platform and a paper feeding roller assembly, the paper placement platform being disposed within the shredder core and having a gap with the housing, the paper placement platform being capable of carrying paper to be shredded, the paper feeding roller assembly being rotatably disposed within the shredder core and located at the paper inlet, at least a portion of the paper feeding roller assembly being located above the paper placement platform, the paper feeding roller assembly being used to press the paper to be shredded on the paper placement platform from the paper inlet into the shredding chamber; and a hinged cover disposed in the housing, the hinged cover being capable of providing a downward force to the paper to be shredded on the paper placement platform.

[0005] As an optional technical solution for the automatic paper shredder, the automatic paper shredder also includes fasteners, and the paper placement platform is connected to the shredder core through the fasteners.

[0006] As an optional technical solution for an automatic paper shredder, the automatic paper shredder further includes an upper cover and a lower cover, both of which are disposed within the cavity of the housing. The paper shredder core is disposed within the cavity formed by the upper cover and the lower cover, and there is a gap between the paper placement platform and the upper cover.

[0007] As an optional technical solution for an automatic paper shredder, the paper shredder core includes a core body and a first side plate and a second side plate respectively connected to both sides of the core body. The first side plate and the second side plate are both connected to the lower cover. The paper placement platform is connected to the core body. One end of the paper feeding roller assembly is rotatably connected to the core body, and the other end of the paper feeding roller assembly is rotatably connected to the first side plate or the second side plate. The core body has the paper inlet. The core body, the first side plate, and the second side plate form the shredding chamber.

[0008] As an optional technical solution for an automatic paper shredder, the automatic paper shredder also includes a drive motor and a transmission structure. The drive motor is installed on the first side plate or the second side plate, and the drive motor is connected to the paper feed roller assembly through the transmission structure to drive the paper feed roller assembly to rotate.

[0009] As an optional technical solution for an automatic paper shredder, the automatic paper shredder further includes a first elastic shock absorber and a second elastic shock absorber. The first side plate is connected to the lower cover through the first elastic shock absorber, and the second side plate is connected to the lower cover through the second elastic shock absorber.

[0010] As an optional technical solution for an automatic paper shredder, the paper feed roller assembly includes a first paper feed roller and a second paper feed roller. At least a portion of the first paper feed roller and at least a portion of the second paper feed roller are located above the paper placement platform. The first paper feed roller and the second paper feed roller are arranged opposite to each other on the paper shredder core and are located on both sides of the paper inlet. The first paper feed roller and the second paper feed roller are used to press the paper to be shredded on the paper placement platform from the paper inlet into the shredding chamber.

[0011] As an optional technical solution for an automatic paper shredder, the inner surface of the cover is provided with a paper pressing structure. The paper pressing structure can cooperate with the paper placement platform and the paper feeding roller assembly, and ensure that the paper to be shredded always has a downward force.

[0012] As an optional technical solution for an automatic paper shredder, the paper pressing structure includes a pressing plate and an elastic element. The pressing plate is connected to the inner surface of the cover through the elastic element. The elastic element always has a force that keeps the pressing plate away from the inner surface of the cover. The pressing plate can cooperate with the paper placement platform and the paper feeding roller assembly.

[0013] As an optional technical solution for an automatic paper shredder, the automatic paper shredder further includes a paper shredding mechanism disposed in the paper shredding chamber, which is used to shred the paper to be shredded that enters the paper shredding chamber.

[0014] The beneficial effects of this utility model are as follows:

[0015] This utility model provides an automatic paper shredder, which includes a housing, a shredder core, a paper feeding mechanism, and a hinged cover. The paper feeding mechanism includes a paper placement platform and a paper feeding roller assembly. In this automatic paper shredder, the paper placement platform is positioned within the shredder core, and the paper feeding roller assembly is also rotatably mounted within the shredder core. This arrangement ensures a fixed relative position between the paper placement platform and the paper feeding roller assembly, thereby ensuring reliable automatic paper feeding. It prevents excessive downward pressure on the shredder core due to the weight of the hinged cover and the paper to be shredded, which could cause the relative position between the paper placement platform and the paper feeding roller assembly to shrink. This effectively solves the problem of uneven or non-feeding paper in existing automatic paper shredders. Furthermore, the gap between the paper placement platform and the housing prevents vibrations from being transmitted to the housing during operation, thus reducing noise and improving the sound insulation of the automatic paper shredder. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the automatic paper shredder in an embodiment of the present invention;

[0017] Figure 2 This is a cross-sectional view of the automatic paper shredder in an embodiment of this utility model;

[0018] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0019] Figure 4 This is a cross-sectional view of the automatic paper shredder in an embodiment of the present invention from another angle;

[0020] Figure 5 This is a schematic diagram of the automatic paper shredder part of the embodiment of this utility model;

[0021] Figure 6 This is a cross-sectional view of the automatic paper shredder being fed into the paper to be shredded in an embodiment of this utility model.

[0022] In the picture:

[0023] 1. Housing;

[0024] 2. Shredder mechanism; 21. Paper inlet; 22. Shredding chamber; 23. Mechanism body; 24. First side plate; 25. Second side plate;

[0025] 3. Paper feeding mechanism; 31. Paper placement platform; 32. Paper feeding roller assembly; 321. First paper feeding roller; 322. Second paper feeding roller;

[0026] 4. Lid opening; 41. Paper pressing structure; 411. Pressing board; 412. Elastic element;

[0027] 5. Fasteners;

[0028] 61. Top cover; 62. Bottom cover;

[0029] 71. Drive motor; 72. Transmission structure; 73. First elastic damping component; 74. Second elastic damping component;

[0030] 8. Shredder;

[0031] 9. Paper to be shredded. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0036] like Figures 1 to 6 As shown, this embodiment provides an automatic paper shredder, which includes a housing 1, a shredder core 2, a paper feeding mechanism 3, and a hinged cover 4. The shredder core 2 is disposed within the cavity of the housing 1, and has a paper inlet 21 and a shredding chamber 22 that are interconnected. The paper feeding mechanism 3 includes a paper placement platform 31 and a paper feeding roller assembly 32. The paper placement platform 31 is disposed within the shredder core 2 and has a gap with the housing 1. The paper placement platform 31 can hold the paper to be shredded 9. The paper feeding roller assembly 32 is rotatably disposed within the shredder core 2 and located at the paper inlet 21. At least a portion of the paper feeding roller assembly 32 is located above the paper placement platform 31, and the paper feeding roller assembly 32 is used to press the paper to be shredded 9 on the paper placement platform 31 from the paper inlet 21 into the shredding chamber 22. The hinged cover 4 is closable and can provide a downward force to the paper to be shredded 9 on the paper placement platform 31.

[0037] The automatic paper shredder of this invention features a paper placement platform 31 positioned within the shredder core 2, along with a rotatably mounted paper feed roller assembly 32. This arrangement ensures a fixed relative position between the paper placement platform 31 and the paper feed roller assembly 32, guaranteeing reliable automatic paper feeding. The weight of the cover 4 and the paper to be shredded 9 will not exert excessive downward pressure on the shredder core 2, preventing a decrease in the relative position between the paper placement platform 31 and the paper feed roller assembly 32. This effectively solves the problem of uneven or non-feeding paper feeding in existing automatic paper shredders. Furthermore, the gap between the paper placement platform 31 and the housing 1 prevents vibrations from being transmitted to the housing 1 during operation, thus reducing noise and improving the sound insulation of the automatic paper shredder.

[0038] In some embodiments, the automatic shredder further includes a fastener 5, wherein the paper placement platform 31 is connected to the shredder core 2 via the fastener 5. This arrangement facilitates the installation and removal of the paper placement platform 31.

[0039] Optionally, fastener 5 may include, but is not limited to, bolts.

[0040] In this embodiment, the automatic paper shredder also includes an upper cover 61 and a lower cover 62. Both the upper cover 61 and the lower cover 62 are disposed within the cavity of the housing 1. The paper shredder core 2 is disposed within the cavity formed by the upper cover 61 and the lower cover 62, facilitating the installation of the paper shredder core 2. Simultaneously, a gap exists between the paper placement platform 31 and the upper cover 61, effectively preventing vibrations from being transmitted to the upper cover 61 through the paper placement platform 31 when the paper shredder core 2 is operating, thus improving the sound insulation effect of the automatic paper shredder.

[0041] Furthermore, the shredder core 2 includes a core body 23 and a first side plate 24 and a second side plate 25 respectively connected to both sides of the core body 23. Both the first side plate 24 and the second side plate 25 are connected to the lower cover 62. The paper placement platform 31 is connected to the core body 23. One end of the paper feed roller assembly 32 is rotatably connected to the core body 23, and the other end of the paper feed roller assembly 32 is rotatably connected to either the first side plate 24 or the second side plate 25, thus ensuring the rotation of the paper feed roller assembly 32. The core body 23 has a paper inlet 21, and the core body 23, the first side plate 24, and the second side plate 25 form a shredding chamber 22.

[0042] In this embodiment, in order to achieve the rotation of the paper feed roller assembly 32, the automatic paper shredder also includes a drive motor 71 and a transmission structure 72. The drive motor 71 is installed on the first side plate 24 or the second side plate 25. The drive motor 71 is connected to the paper feed roller assembly 32 through the transmission structure 72, thereby achieving the purpose of driving the paper feed roller assembly 32 to rotate.

[0043] Optionally, the transmission structure 72 may include, but is not limited to, a gear transmission assembly.

[0044] To reduce vibration of the shredder core 2 during operation, in some embodiments, the automatic shredder further includes a first elastic damping element 73 and a second elastic damping element 74. The first side plate 24 is connected to the lower cover 62 via the first elastic damping element 73, and the second side plate 25 is connected to the lower cover 62 via the second elastic damping element 74. This configuration can effectively reduce vibration of the shredder core 2 during operation.

[0045] Optionally, the first elastic damping element 73 and the second elastic damping element 74 may include, but are not limited to, springs.

[0046] In this embodiment, the paper feed roller assembly 32 includes a first paper feed roller 321 and a second paper feed roller 322. At least a portion of the first paper feed roller 321 and at least a portion of the second paper feed roller 322 are located above the paper placement platform 31. The first paper feed roller 321 and the second paper feed roller 322 are arranged opposite to each other on the shredder core 2 and are located on both sides of the paper inlet 21. This allows the first paper feed roller 321 and the second paper feed roller 322 to press the paper to be shredded 9 on the paper placement platform 31 from the paper inlet 21 into the shredding chamber 22.

[0047] Specifically, the inner surface of the cover 4 is provided with a paper pressing structure 41, which can cooperate with the paper placement platform 31 and the paper feeding roller assembly 32 to ensure that the paper to be shredded 9 always has a downward force. This facilitates the paper to be shredded 9 to be pressed from the paper inlet 21 into the shredding chamber 22 by the paper feeding roller assembly 32.

[0048] In this embodiment, the paper pressing structure 41 includes a pressing plate 411 and an elastic element 412. The pressing plate 411 is connected to the inner surface of the flip cover 4 through the elastic element 412. The elastic element 412 always exerts a force to keep the pressing plate 411 away from the inner surface of the flip cover 4. This allows the pressing plate 411 to cooperate with the paper placement platform 31 and the paper feeding roller assembly 32, and ensures that the paper to be shredded 9 always has a downward force.

[0049] In some embodiments, the automatic paper shredder further includes a shredding mechanism 8, wherein the shredding mechanism 8 is disposed in the shredding chamber 22, and the paper 9 to be shredded entering the shredding chamber 22 can be shredded by the shredding mechanism 8.

[0050] Optionally, the paper shredding mechanism 8 includes a first paper shredder and a second paper shredder. The first paper shredder and the second paper shredder are rotatably disposed in the paper shredding chamber 22. The first paper shredder and the second paper shredder can be used to shred the paper 9 that enters the paper shredding chamber 22.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automatic paper shredder, characterized in that, include: Casing (1); The paper shredder core (2) is disposed in the cavity of the housing (1), and the paper shredder core (2) has a paper inlet (21) and a shredding chamber (22) that are interconnected. The paper feeding mechanism (3) includes a paper placement platform (31) and a paper feeding roller assembly (32). The paper placement platform (31) is disposed on the shredder core (2) and has a gap with the housing (1). The paper placement platform (31) can carry the paper to be shredded (9). The paper feeding roller assembly (32) is rotatably disposed on the shredder core (2) and located at the paper inlet (21). At least part of the paper feeding roller assembly (32) is located above the paper placement platform (31). The paper feeding roller assembly (32) is used to press the paper to be shredded (9) on the paper placement platform (31) from the paper inlet (21) into the shredding chamber (22). A hinged cover (4) is provided on the housing (1) and can be opened and closed. The hinged cover (4) can provide a downward force to the paper to be shredded (9) located on the paper placement platform (31).

2. The automatic paper shredder according to claim 1, characterized in that, The automatic paper shredder also includes a fastener (5), and the paper placement platform (31) is connected to the paper shredder core (2) through the fastener (5).

3. The automatic paper shredder according to claim 1, characterized in that, The automatic paper shredder also includes an upper cover (61) and a lower cover (62), both of which are located in the cavity of the housing (1). The paper shredder core (2) is located in the cavity formed by the upper cover (61) and the lower cover (62). There is a gap between the paper placement platform (31) and the upper cover (61).

4. The automatic paper shredder according to claim 3, characterized in that, The paper shredder core (2) includes a core body (23) and a first side plate (24) and a second side plate (25) respectively connected to both sides of the core body (23). The first side plate (24) and the second side plate (25) are both connected to the lower cover (62). The paper placement platform (31) is connected to the core body (23). One end of the paper feed roller assembly (32) is rotatably connected to the core body (23). The other end of the paper feed roller assembly (32) is rotatably connected to the first side plate (24) or the second side plate (25). The core body (23) has the paper inlet (21). The core body (23), the first side plate (24) and the second side plate (25) form the paper shredding chamber (22).

5. The automatic paper shredder according to claim 4, characterized in that, The automatic paper shredder also includes a drive motor (71) and a transmission structure (72). The drive motor (71) is mounted on the first side plate (24) or the second side plate (25). The drive motor (71) is connected to the paper feed roller assembly (32) through the transmission structure (72) to drive the paper feed roller assembly (32) to rotate.

6. The automatic paper shredder according to claim 4, characterized in that, The automatic paper shredder also includes a first elastic damping component (73) and a second elastic damping component (74). The first side plate (24) is connected to the lower cover (62) through the first elastic damping component (73), and the second side plate (25) is connected to the lower cover (62) through the second elastic damping component (74).

7. The automatic paper shredder according to claim 1, characterized in that, The paper feed roller assembly (32) includes a first paper feed roller (321) and a second paper feed roller (322). At least a portion of the first paper feed roller (321) and at least a portion of the second paper feed roller (322) are located above the paper placement platform (31). The first paper feed roller (321) and the second paper feed roller (322) are arranged opposite to each other on the shredder core (2) and are located on both sides of the paper inlet (21). The first paper feed roller (321) and the second paper feed roller (322) are used to press the paper to be shredded (9) located on the paper placement platform (31) from the paper inlet (21) into the shredding chamber (22).

8. The automatic paper shredder according to claim 1, characterized in that, The inner surface of the cover (4) is provided with a paper pressing structure (41). The paper pressing structure (41) can cooperate with the paper placement platform (31) and the paper feeding roller group (32) and make the paper to be shredded (9) always have a downward force.

9. The automatic paper shredder according to claim 8, characterized in that, The paper pressing structure (41) includes a pressing plate (411) and an elastic element (412). The pressing plate (411) is connected to the inner surface of the cover (4) through the elastic element (412). The elastic element (412) always has a force that keeps the pressing plate (411) away from the inner surface of the cover (4). The pressing plate (411) can cooperate with the paper placement platform (31) and the paper feeding roller assembly (32).

10. The automatic paper shredder according to any one of claims 1-9, characterized in that, The automatic paper shredder also includes a paper shredding mechanism (8), which is disposed in the paper shredding chamber (22) and is used to shred the paper (9) to be shredded into the paper shredding chamber (22).

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