Automatic paper shredder with curved paper lowering structure

Abstract

The invention discloses an automatic shredder with a bent lower paper structure, comprising an upper cover of the shredder, a lower cover of the shredder, a paper support box, a first bent paper box (or a second bent paper box), a cover plate of the shredder, a paper pressing board, a paper pressing wheel group, a paper picking wheel group, a paper inlet, a knife shaft group, a driving motor, a housing and a waste paper barrel. The invention utilizes the characteristics of the toughness and bendability of paper, combines the characteristics of the single-sided paper picking roller, and utilizes the paper length changed by the bent paper box to shred paper, which is extremely clean, simple and economical, and changes the structural mode of the automatic shredder for flatly laying paper.

Description

Technical Field

[0001] The invention relates to the field of automatic paper shredders, and in particular to an automatic paper shredder with a bent lower paper structure. Background Art

[0002] The automatic paper shredders currently on the market, whether they have two sets of paper pickup rollers that feed paper symmetrically or one set of paper pickup rollers that feed paper asymmetrically, need to add protective walls at both ends of the paper. Because the shape of the entire machine must include the long side of the paper, the shape is larger and it is impossible to completely compress the paper length to streamline the structure.

[0003] The solution of the present invention is to improve the existing automatic paper shredder in view of the above problems. Summary of the invention

[0004] In order to overcome the deficiencies in the prior art, the present invention provides an automatic shredder with a curved lower paper structure, which utilizes the toughness and bendability of paper, combines the characteristics of a single-sided paper rubbing roller, and utilizes a curved paper box to change the length of paper to shred paper, which is extremely clean, simple and economical, and changes the structural mode of the automatic shredder for flatly laying paper.

[0005] In order to achieve the above-mentioned invention object, the technical solution adopted to solve the technical problem is as follows:

[0006] The present invention discloses an automatic paper shredder with a curved paper lowering structure, comprising a paper shredder upper cover, a paper shredder lower cover, a paper supporting box, a first curved paper box, a paper shredder cover, a paper pressing board, a paper pressing wheel group, a paper picking wheel group, a paper inlet, a knife shaft group, a driving motor, a housing and a waste paper barrel, wherein:

[0007] The shredder upper cover is fixedly connected to the shredder lower cover;

[0008] The paper support box is arranged on the upper end surface of the inner side of the lower cover of the paper shredder;

[0009] The first curved paper box is formed by sequentially connecting the first paper box upper side wall, the first paper box paper stop wall and the first paper box lower side wall to form a semi-open downward curved cavity, and is fixedly connected to the lower cover of the shredder, and is connected and combined with the paper supporting box to accommodate stacked paper to be shredded;

[0010] The shredder cover is pivotally connected to one end of the shredder upper cover and is used to close or open the shredder;

[0011] The paper pressing plate is fixedly connected to the lower end surface of the shredder cover plate, and is used to press the stacked shredded paper placed on the paper supporting box when the user closes the shredder cover plate;

[0012] The paper pressing wheel group is arranged on the lower end surface of the paper pressing board, and is arranged correspondingly with the paper picking wheel group in the vertical direction;

[0013] The paper inlet is opened on the paper supporting box;

[0014] The knife shaft assembly is arranged inside the lower cover of the shredder and is located directly below the paper inlet, and is used to crush the stacked paper to be shredded;

[0015] The driving motor is arranged inside the lower cover of the shredder and is electrically connected to the cutter shaft assembly and the paper pickup wheel assembly, and is used to drive the cutter shaft assembly and the paper pickup wheel assembly to operate;

[0016] The pickup wheel assembly is arranged inside the lower cover of the shredder and is located on a side of the cutter shaft assembly away from the first bending paper box, and is used to rotate the pickup wheel assembly under the drive of the driving motor to rub the bottom sheet of paper to be shredded stacked above the paper supporting box toward the direction of the paper stop wall of the first paper box, and move the paper in the opposite direction under the action of the reaction force of the paper stop wall of the first paper box, so that the paper is bent and deformed at the paper inlet and enters the paper inlet downward;

[0017] The housing is disposed below the lower cover of the shredder and is fixedly connected to the lower cover of the shredder;

[0018] The waste paper bucket is arranged inside the shell and is used for collecting paper scraps.

[0019] Preferably, the bottom plane of the paper supporting box gradually slopes downward from an end away from the first curved paper box to an end close to the first curved paper box.

[0020] Furthermore, the angle between the first paper box paper stop wall and the bottom plane of the paper supporting box is less than or equal to 90 degrees.

[0021] Furthermore, the first curved paper box and the paper supporting box are made in one piece or separately.

[0022] Furthermore, when the first curved paper box and the paper supporting box are manufactured separately, the first curved paper box, the paper supporting box and the upper cover of the shredder are connected respectively by screwing, clamping, riveting or welding.

[0023] Furthermore, the sum of the lengths of the first curved paper box and the paper supporting box is equal to the length of the paper to be shredded.

[0024] Preferably, the length of the first curved paper box is less than or equal to half of the length of the paper.

[0025] Preferably, the length of the first curved paper box is less than or equal to one quarter of the length of the paper.

[0026] Preferably, the entrance width of the first curved paper box is equal to the width of the paper supporting box.

[0027] Furthermore, the left and right ends of the lower side wall of the first paper box expand outwards near the paper stop wall of the first paper box to form a first nail receiving box;

[0028] The folded corners at the connection between the two left and right first staple boxes and the lower side wall of the first paper box are used to remove staples or paper clips on the bottom sheet of stacked paper;

[0029] The two facing side surfaces inside the left and right first staple containing boxes are both opening surfaces of the first staple shaving portion and are connected to the waste paper barrel for removing excess staples or paper clips.

[0030] Preferably, the first paper box upper side wall, the first paper box paper stop wall, the first nail containing box and the first paper box lower side wall are integrally formed.

[0031] Furthermore, a first nail shaving plate is provided at the corner portion where the two left and right first nail containing boxes are connected to the lower side wall of the first paper box.

[0032] Furthermore, a plurality of first reinforcing ribs are arranged between the upper portion of the first nail containing box and the lower side wall of the first paper box.

[0033] Furthermore, a first accommodating cavity is provided on the lower cover of the shredder for accommodating the first bent paper box.

[0034] The present invention further discloses an automatic shredder with a curved lower paper structure, comprising a shredder upper cover, a shredder lower cover, a paper support box, a second curved paper box, a shredder cover, a paper pressing board, a paper pressing wheel group, a paper picking wheel group, a paper inlet, a knife shaft group, a driving motor, a housing and a waste paper barrel, wherein:

[0035] The shredder upper cover is fixedly connected to the shredder lower cover;

[0036] The paper support box is arranged on the upper end surface of the inner side of the lower cover of the paper shredder;

[0037] The second curved paper box is formed by sequentially connecting the second paper box upper side wall, the second paper box paper stop wall and the second paper box lower side wall to form a semi-open upward curved cavity, and is fixedly connected to the upper cover of the shredder, and is connected and combined with the paper supporting box to accommodate stacked paper to be shredded;

[0038] The shredder cover is pivotally connected to one end of the shredder upper cover and is used to close or open the shredder;

[0039] The paper pressing plate is fixedly connected to the lower end surface of the shredder cover plate, and is used to press the stacked shredded paper placed on the paper supporting box when the user closes the shredder cover plate;

[0040] The paper pressing wheel group is arranged on the lower end surface of the paper pressing board, and is arranged correspondingly with the paper picking wheel group in the vertical direction;

[0041] The paper inlet is opened on the paper supporting box;

[0042] The knife shaft assembly is arranged inside the lower cover of the shredder and is located directly below the paper inlet, and is used to crush the stacked paper to be shredded;

[0043] The driving motor is arranged inside the lower cover of the shredder and is electrically connected to the cutter shaft assembly and the paper pickup wheel assembly, and is used to drive the cutter shaft assembly and the paper pickup wheel assembly to operate;

[0044] The pickup wheel assembly is arranged inside the lower cover of the shredder and is located on a side of the cutter shaft assembly away from the second curved paper box, and is used to rotate the pickup wheel assembly under the drive of the driving motor to rub the bottom sheet of paper to be shredded stacked above the paper supporting box toward the paper stop wall of the second paper box and move the paper in the opposite direction under the reaction force of the paper stop wall of the second paper box, so that the paper is bent and deformed at the paper inlet and enters the paper inlet downward;

[0045] The housing is disposed below the lower cover of the shredder and is fixedly connected to the lower cover of the shredder;

[0046] The waste paper bucket is arranged inside the shell and is used for collecting paper scraps.

[0047] Preferably, the bottom plane of the paper supporting box gradually tilts upward from an end away from the second curved paper box to an end close to the second curved paper box.

[0048] Furthermore, the angle between the second paper box paper stop wall and the bottom plane of the paper supporting box is less than or equal to 90 degrees.

[0049] Furthermore, the second curved paper box and the paper supporting box are made in one piece or separately.

[0050] Furthermore, when the second curved paper box and the paper supporting box are manufactured separately, the second curved paper box, the paper supporting box and the upper cover of the shredder are connected respectively by screwing, clamping, riveting or welding.

[0051] Furthermore, the sum of the lengths of the second curved paper box and the paper supporting box is equal to the length of the paper to be shredded.

[0052] Preferably, the length of the second curved paper box is less than or equal to one quarter of the length of the paper.

[0053] Preferably, the entrance width of the second curved paper box is equal to the width of the paper supporting box.

[0054] Furthermore, the left and right ends of the lower side wall of the second paper box expand outwards near the paper stop wall of the second paper box to form a second nail receiving box;

[0055] The folded corners at the connection between the left and right second staple boxes and the lower side wall of the second paper box are used to remove staples or paper clips on the bottom sheet of stacked paper;

[0056] The two opposite side surfaces of the outer sides of the left and right second staple boxes are both opening surfaces of the second staple shaving portion, and are connected to the waste paper barrel through through holes arranged at two corners of the lower cover of the shredder for removing excess staples or paper clips.

[0057] Furthermore, the second paper box upper side wall, the second paper box paper stop wall, the second nail containing box and the second paper box lower side wall are integrally formed.

[0058] Furthermore, a second nail shaving plate is provided at the corner portion where the two left and right second nail containing boxes are connected to the lower side wall of the second paper box.

[0059] Furthermore, a plurality of second reinforcing ribs are provided between the upper portion of the second nail containing box and the lower side wall of the second paper box.

[0060] Furthermore, a second accommodating cavity is provided on the upper cover of the shredder for accommodating the second curved paper box.

[0061] The present invention also discloses an automatic shredder with a curved lower paper structure, comprising a shredder upper cover, a shredder lower cover, a paper support box, a shredder cover, a paper pressing board, a paper pressing wheel group, a paper picking wheel group, a paper inlet, a knife shaft group, a driving motor, a third nail container, a shell and a waste paper bucket, wherein:

[0062] The shredder upper cover is fixedly connected to the shredder lower cover;

[0063] The paper support box is arranged on the upper end surface of the inner side of the lower cover of the paper shredder;

[0064] The shredder cover is pivotally connected to one end of the shredder upper cover and is used to close or open the shredder;

[0065] The paper pressing plate is fixedly connected to the lower end surface of the shredder cover plate, and is used to press the stacked shredded paper placed on the paper supporting box when the user closes the shredder cover plate;

[0066] The paper pressing wheel group is arranged on the lower end surface of the paper pressing board, and is arranged correspondingly with the paper picking wheel group in the vertical direction;

[0067] The paper inlet is opened on the paper supporting box;

[0068] The knife shaft assembly is arranged inside the lower cover of the shredder and is located directly below the paper inlet, and is used to crush the stacked paper to be shredded;

[0069] The driving motor is arranged inside the lower cover of the shredder and is electrically connected to the cutter shaft assembly and the paper pickup wheel assembly, and is used to drive the cutter shaft assembly and the paper pickup wheel assembly to operate;

[0070] The side wall of the paper supporting box away from the paper pressing wheel assembly forms a third paper stop wall;

[0071] The pickup wheel assembly is arranged inside the lower cover of the shredder and is located on a side of the cutter shaft assembly away from the third paper stop wall, and is used to rotate the pickup wheel assembly under the drive of the drive motor to rub the bottom sheet of paper to be shredded stacked above the paper support box toward the third paper stop wall and move the paper in the opposite direction under the reaction force of the third paper stop wall so that the paper is bent and deformed at the paper inlet and enters the paper inlet downward;

[0072] The third staple box is recessed at one end of the paper support box and is used to collect the staples or paper clips that are removed;

[0073] The housing is disposed below the lower cover of the shredder and is fixedly connected to the lower cover of the shredder;

[0074] The waste paper bucket is arranged inside the shell and is used for collecting paper scraps.

[0075] Furthermore, the length of the bottom of the paper supporting box is smaller than the length of the stacked papers to be shredded.

[0076] Preferably, the paper press comprises a horizontal paper press and a vertical paper press, the horizontal paper press presses the stacked papers to be shredded onto the paper support box, and the vertical paper press presses part of the stacked papers to be shredded close to the third nail containing box into the third nail containing box.

[0077] Furthermore, the bottom plane of the paper supporting box is horizontally or inclined.

[0078] Furthermore, the bottom plane of the paper supporting box gradually slopes downward from an end away from the third paper stop wall to an end close to the third paper stop wall.

[0079] Preferably, the angle between the third paper stop wall and the bottom plane of the paper supporting box is less than or equal to 90 degrees.

[0080] Furthermore, a third nail shaving plate is provided at the corner portion where the third nail containing box is connected to the bottom plane of the paper supporting box.

[0081] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art:

[0082] 1. In the automatic shredder with a curved paper lower structure of the present invention, the bottom plane of the paper tray is set to be inclined, which is more in line with the user's usage habits and convenient for users to place stacked papers to be shredded. At the same time, it can reduce the friction between the stacked papers to be shredded, so that the friction is decomposed into horizontal and vertical directions;

[0083] 2. The automatic shredder with a bent lower paper structure of the present invention can automatically remove staples and / or paper clips, greatly improve the shredding efficiency, save time, and prevent staples and / or paper clips from damaging the entire machine, thereby protecting the use of the entire machine and extending its service life;

[0084] 3. The present invention discloses an automatic shredder with a bent lower paper structure. It utilizes the bendable characteristics of paper and the characteristics of a single-sided paper rubbing roller to change the length of paper by bending a paper box. The shredder is extremely clean and economical, and changes the structural mode of flat-laying paper in the automatic shredder. The shredder has the characteristics of high automation, ease of use, safety and reliability, ingenious design, simple structure, and economical cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0085] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0086] Figure 1 is a partial cross-sectional view of an automatic paper shredder with a curved lower paper structure according to Embodiment 1 of the present invention;

[0087] Figure 2 This is a structural schematic diagram of an automatic shredder with a curved lower paper structure in accordance with an embodiment of the present invention, in which the first curved paper box is installed in the lower cover of the shredder (with an upper cover of the shredder); (the arrow indicates the direction of paper loading)

[0088] Figure 3 This is an overall cross-sectional view of an automatic paper shredder with a curved lower paper structure according to an embodiment of the present invention; (the arrow indicates the paper loading direction)

[0089] Figure 4 This is a structural schematic diagram of an automatic shredder with a curved lower paper structure in accordance with an embodiment of the present invention, in which a first curved paper box is installed in a lower cover of the shredder (without an upper cover of the shredder);

[0090] Figure 5 This is a schematic diagram of the structure decomposition between the first curved paper box and the upper and lower covers of the shredder in an automatic shredder with a curved lower paper structure according to an embodiment of the present invention; (the arrow indicates the assembly direction)

[0091] Figure 6 This is a schematic diagram of the overall structure of a first curved paper box in an automatic paper shredder with a curved lower paper structure according to an embodiment of the present invention; (arrows indicate the paper loading direction)

[0092] Figure 7 It is a structural schematic diagram of a first accommodating chamber in an automatic paper shredder with a curved lower paper structure according to an embodiment of the present invention;

[0093] Figure 8 is a partial cross-sectional view of an automatic paper shredder with a curved lower paper structure according to a second embodiment of the present invention;

[0094] Fig. 9 This is a schematic diagram of the overall structure of a second curved paper box in an automatic paper shredder with a curved lower paper structure according to a second embodiment of the present invention; (arrows indicate the paper loading direction)

[0095] Fig.10 It is a schematic diagram of the installation structure of a second curved paper box in an automatic paper shredder with a curved lower paper structure according to a second embodiment of the present invention;

[0096] Fig.11 1 is a schematic diagram of the moving direction of the shaving nails in an automatic shredder with a curved lower paper structure according to a third embodiment of the present invention;

[0097] Fig.12 This is a schematic structural diagram of a first paper pressing condition of an automatic paper shredder with a curved lower paper structure according to a third embodiment of the present invention;

[0098] Fig.13 It is a structural schematic diagram of the second paper pressing condition of an automatic paper shredder with a curved lower paper structure according to the third embodiment of the present invention.

[0099]

Explanation of main symbols

[0100] 1- Shredder cover;

[0101] 2- Shredder lower cover;

[0102] 3-Carton support;

[0103] 4- First bending carton;

[0104] 5-Shredder cover;

[0105] 6-press paperboard;

[0106] 7-Paper pressing wheel set;

[0107] 8-Paper pickup wheel set;

[0108] 9-paper inlet;

[0109] 10- knife shaft set;

[0110] 11- driving motor;

[0111] 12- first accommodating chamber;

[0112] 13- upper side wall of the first paper box;

[0113] 14-first paper box paper stop wall;

[0114] 15-lower side wall of the first paper box;

[0115] 16-a first nail container;

[0116] 17- first nail shaving part opening surface;

[0117] 18- first reinforcement rib;

[0118] 19- second curved carton;

[0119] 21-upper side wall of the second paper box;

[0120] 22-second paper box paper stop wall;

[0121] 23-lower side wall of the second paper box;

[0122] 24- second nail container;

[0123] 25- second nail shaving part opening surface;

[0124] 26-through hole;

[0125] 27- second reinforcement rib;

[0126] 28- the third nail container;

[0127] 29- the third paper stop wall;

[0128] 30-Horizontal press board;

[0129] 31-Vertical cardboard press. DETAILED DESCRIPTION

[0130] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0131] It should be noted that the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0132] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by "upper", "lower", "side", "bottom", etc. are based on the directions or positional relationships shown in the drawings, and the purpose is only to facilitate the description of the present invention and simplify the description, and it does not indicate or imply that the components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the expressions "first", "second", "third", etc. are only used to distinguish components with the same function in this case.

[0133] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0134] Embodiment 1 (Using the space under the cover of the paper shredder)

[0135] like Figure 1-7 As shown, the present invention discloses an automatic shredder with a curved lower paper structure, comprising a shredder upper cover 1, a shredder lower cover 2, a paper support box 3, a first curved paper box 4, a shredder cover 5, a paper pressing board 6, a paper pressing wheel group 7, a paper pickup wheel group 8, a paper inlet 9, a knife shaft group 10, a driving motor 11, a housing (not shown) and a waste paper barrel (not shown), wherein:

[0136] The shredder upper cover 1 is fixedly connected to the shredder lower cover 2 . In this embodiment, a first accommodating cavity 12 is formed on the shredder lower cover 2 for accommodating the first curved paper box 4 .

[0137] The paper support box 3 is arranged on the upper end surface of the inner side of the lower cover 2 of the shredder;

[0138] The first curved paper box 4 is formed by sequentially connecting the first paper box upper side wall 13, the first paper box paper stop wall 14 and the first paper box lower side wall 15 to form a semi-open downward curved cavity, and is fixedly connected to the lower cover 2 of the shredder, and is connected and combined with the paper supporting box 3, and is used to accommodate stacked paper to be shredded (the case of a single paper is also applicable);

[0139] The shredder cover plate 5 is pivotally connected to one end of the shredder upper cover 1 and is used to close or open the shredder;

[0140] The paper pressing plate 6 is fixedly connected to the lower end surface of the shredder cover 5, and is used to press the stacked paper to be shredded placed on the paper supporting box 3 when the user closes the shredder cover 5. In this embodiment, the lower surface of the paper pressing plate 6 is arranged parallel to the bottom plane of the paper supporting box 3, which helps the paper pressing plate 6 to press and compact each corner of the stacked paper to be shredded on the paper supporting box 3.

[0141] The paper pressing wheel group 7 is arranged on the lower end surface of the paper pressing board 6, and is arranged vertically corresponding to the paper picking wheel group 8. In this embodiment, the number of the paper pressing wheel group 7 and the paper picking wheel group 8 are both 2, and this number is not limited. More or less numbers of the paper pressing wheel group 7 and the paper picking wheel group 8 are all within the protection scope of this embodiment.

[0142] The paper inlet 9 is opened on the paper supporting box 3;

[0143] The blade shaft assembly 10 is disposed inside the lower cover 2 of the shredder and is located directly below the paper inlet 9, and is used to crush the stacked paper to be shredded;

[0144] The driving motor 11 is disposed inside the lower cover 2 of the shredder and is electrically connected to the cutter shaft assembly 10 and the pickup wheel assembly 8, and is used to drive the cutter shaft assembly 10 and the pickup wheel assembly 8 to operate;

[0145] The pickup wheel group 8 is arranged inside the lower cover 2 of the shredder and is located on the side of the knife shaft group 10 away from the first curved paper box 4. It is used to rotate the pickup wheel group 8 under the drive of the drive motor 11 to rub the bottom sheet of paper to be shredded stacked above the paper support box 3 toward the first paper box paper stop wall 14 and move the paper in the opposite direction under the reaction force of the first paper box paper stop wall 14, and then bend and deform at the paper inlet 9 to enter the paper inlet 9 downward; in this embodiment, the number of the pickup wheel groups 8 is two, and there is no limitation on the number of pickup wheel groups 8 in the actual design, which can be three or more. In addition, the design concept of the single-sided pickup wheel group simplifies the pickup structure and saves economic costs.

[0146] The housing is disposed below the lower cover 2 of the shredder and is fixedly connected to the lower cover 2 of the shredder;

[0147] The waste paper bucket is arranged inside the shell and is used for collecting paper scraps.

[0148] Preferably, the bottom plane of the paper support box 3 gradually slopes downward from the end away from the first curved paper box 4 to the end close to the first curved paper box 4, which is convenient for users to place stacked paper to be shredded and can reduce the friction between stacked paper. In actual operation, the bottom plane of the paper support box 3 can also be set to be horizontal, but it is not the most convenient to place paper.

[0149] Furthermore, the angle A between the first paper box paper stop wall 14 and the bottom plane of the paper support box 3 is less than or equal to 90 degrees. Figure 1 shown.

[0150] Furthermore, the first curved paper box 4 is made integrally with the paper support box 3 or separately. When the first curved paper box 4 is made separately from the paper support box 3, the first curved paper box 4 is connected to the paper support box 3 and the shredder cover 1 by screwing, snapping, riveting or welding. In actual operation, the connection between the upper part of the entrance of the first curved paper box 4 and the shredder cover 1, and the lower part of the entrance of the first curved paper box 4 and the bottom plane of the paper support box 3 can be one or more combinations of fixed connection methods such as screwing, snapping, riveting or welding. As long as the fixed connection effect is achieved, it is within the protection scope of this case.

[0151] Furthermore, the sum of the lengths of the first curved paper box 4 and the paper support box 3 is equal to the length of the paper to be shredded, and the paper length defaults to the length of the long side of the paper. In this embodiment, the length of the first curved paper box 4 is less than or equal to half of the paper length, which can minimize the length of the paper support box 3 and thus greatly reduce the volume of the shredder. In another embodiment, the length of the first curved paper box 4 is less than or equal to one-quarter of the paper length. In this case, the paper pressing effect of the paper pressing board 6 is better than the previous case, and the paper rubbing effect is also better, but correspondingly, the volume of the shredder is larger than the previous case.

[0152] Preferably, the entrance width of the first curved paper box 4 is equal to the width of the paper supporting box 3 , which can effectively prevent the stacked shredded paper sheets above the paper supporting box 3 from moving left and right.

[0153] Furthermore, the left and right ends of the lower side wall 15 of the first paper box expand outward near the first paper box paper stop wall 14 to form a first nail box 16; the folded corners at the connection between the two first nail boxes 16 and the lower side wall 15 of the first paper box are used to remove staples or paper clips on the bottom sheet of stacked paper; the two facing side surfaces inside the two first nail boxes 16 are both first nail shaving opening surfaces 17, and are connected to the waste paper bucket for removing excess staples or paper clips.

[0154] Preferably, the first paper box upper side wall 13, the first paper box paper stop wall 14, the first nail receiving box 16 and the first paper box lower side wall 15 are made in one piece.

[0155] Furthermore, a first nail shaving plate (not shown) is provided at the corner portion where the two first nail containing boxes 16 on the left and right sides are connected to the lower side wall 15 of the first paper box. Preferably, the first nail shaving plate is made of metal material. In this embodiment, the first nail shaving plate made of metal can effectively increase the nail shaving efficiency and extend its service life.

[0156] Figure 6 In the embodiment, a plurality of first reinforcing ribs 18 are arranged between the upper portion of the first nail containing box 16 and the lower side wall 15 of the first paper box. In actual operation, frequent nail shaving leads to accelerated wear between the two, and the arrangement of the first reinforcing ribs 18 can effectively extend the service life of the first curved paper box 4.

[0157] Embodiment 2 (Using the space on the cover of the shredder)

[0158] like Figure 8-11 As shown, the present invention further discloses an automatic shredder with a curved lower paper structure, including a shredder upper cover 1, a shredder lower cover 2, a paper support box 3, a second curved paper box 19, a shredder cover 5, a paper pressing board 6, a paper pressing wheel group 7, a paper pickup wheel group 8, a paper inlet 9, a knife shaft group 10, a drive motor 11, a housing and a waste paper barrel, wherein:

[0159] The shredder upper cover 1 is fixedly connected to the shredder lower cover 2 . In this embodiment, a second accommodating cavity (not shown) is provided on the shredder upper cover 1 for accommodating the second curved paper box 19 .

[0160] The paper support box 3 is arranged on the upper end surface of the inner side of the lower cover 2 of the shredder;

[0161] The second curved paper box 19 is connected in sequence by the second paper box upper side wall 21, the second paper box paper stop wall 22 and the second paper box lower side wall 23 to form a semi-open upward curved cavity, and is fixedly connected to the shredder upper cover 1, and is connected and combined with the paper supporting box 3, and is used to accommodate stacked paper to be shredded (the case of a single paper is also applicable);

[0162] The shredder cover plate 5 is pivotally connected to one end of the shredder upper cover 1 and is used to close or open the shredder;

[0163] The paper pressing plate 6 is fixedly connected to the lower end surface of the shredder cover 5, and is used to press the stacked paper to be shredded placed on the paper supporting box 3 when the user closes the shredder cover 5. In this embodiment, the lower surface of the paper pressing plate 6 is arranged parallel to the bottom plane of the paper supporting box 3, which helps the paper pressing plate 6 to press and compact each corner of the stacked paper to be shredded on the paper supporting box 3.

[0164] The paper pressing wheel group 7 is arranged on the lower end surface of the paper pressing board 6, and is arranged vertically corresponding to the paper picking wheel group 8. In this embodiment, the number of the paper pressing wheel group 7 and the paper picking wheel group 8 are both 2, and this number is not limited. More or less numbers of the paper pressing wheel group 7 and the paper picking wheel group 8 are all within the protection scope of this embodiment.

[0165] The paper inlet 9 is opened on the paper supporting box 3;

[0166] The blade shaft assembly 10 is disposed inside the lower cover 2 of the shredder and is located directly below the paper inlet 9, and is used to crush the stacked paper to be shredded;

[0167] The driving motor 11 is disposed inside the lower cover 2 of the shredder and is electrically connected to the cutter shaft assembly 10 and the pickup wheel assembly 8, and is used to drive the cutter shaft assembly 10 and the pickup wheel assembly 8 to operate;

[0168] The pickup wheel group 8 is arranged inside the lower cover 2 of the shredder and is located on the side of the knife shaft group 10 away from the second curved paper box 19. It is used to rotate the pickup wheel group 8 under the drive of the drive motor 11 to rub the bottom sheet of paper to be shredded stacked above the paper support box 3 toward the second paper box paper stop wall 22 and move the paper in the opposite direction under the reaction force of the second paper box paper stop wall 22, and then bend and deform at the paper inlet 9 to enter the paper inlet 9 downward. In this embodiment, the number of the pickup wheel groups 8 is two. In actual design, there is no limitation on the number of pickup wheel groups 8, which can be three or more. In addition, the design concept of the single-sided pickup wheel group simplifies the pickup structure and saves economic costs.

[0169] The housing is disposed below the lower cover 2 of the shredder and is fixedly connected to the lower cover 2 of the shredder;

[0170] The waste paper bucket is arranged inside the shell and is used for collecting paper scraps.

[0171] Preferably, the bottom plane of the paper support box 3 gradually tilts upward from the end away from the second curved paper box 19 to the end close to the second curved paper box 19, which is convenient for users to place stacked paper to be shredded and can reduce the friction between stacked paper. In actual operation, the bottom plane of the paper support box 3 can also be set to be horizontal, but it is not the most convenient to place paper.

[0172] Furthermore, the included angle B between the second paper box paper stop wall 22 and the bottom plane of the paper support box 3 is less than or equal to 90 degrees. Figure 8 shown.

[0173] Furthermore, the second curved paper box 19 and the paper supporting box 3 are made in one piece or separately.

[0174] Furthermore, when the second curved paper box 19 is made separately from the paper support box 3, the second curved paper box 19 is connected to the paper support box 3 and the shredder cover 1 by screwing, clamping, riveting or welding. In actual operation, the connection between the upper part of the entrance of the second curved paper box 19 and the shredder cover 1, and the lower part of the entrance of the second curved paper box 19 and the bottom plane of the paper support box 3 can be one or more combinations of fixed connection methods such as screwing, clamping, riveting or welding. As long as the fixed connection effect is achieved, it is within the protection scope of this case.

[0175] Furthermore, the sum of the lengths of the second curved paper box 19 and the paper supporting box 3 is equal to the length of the paper to be shredded, and the paper length defaults to the length of the long side of the paper.

[0176] Preferably, the length of the second curved paper box 19 is less than or equal to one-fourth of the length of the paper. In this embodiment, the length of the second curved paper box 19 is not less than or equal to one-half of the length of the paper as in the first embodiment because, in this embodiment, the second curved paper box 19 is arranged in the upper cover 1 of the shredder. If the solution of "the length of the second curved paper box 19 is less than or equal to one-half of the length of the paper" is adopted, the height of the upper cover 1 of the shredder will be increased invisibly. In consideration of the factors of reducing the length of the paper support box 3 and the height of the upper cover 1 of the shredder, the solution of "the length of the second curved paper box 19 is less than or equal to one-fourth of the length of the paper" in this embodiment is more appropriate, which can greatly shorten the length of the paper support box 3, thereby effectively reducing the volume of the shredder, and at the same time, it will not make the upper cover 1 of the shredder too bulky.

[0177] Preferably, the entrance width of the second curved paper box 19 is equal to the width of the paper supporting box 3 , which can effectively prevent the stacked shredded paper sheets above the paper supporting box 3 from moving left and right.

[0178] Furthermore, the left and right ends of the lower side wall 23 of the second paper box expand outward near the second paper box paper stop wall 22 to form a second nail box 24; the folded corners at the connection between the two second nail boxes 24 and the lower side wall 23 of the second paper box are used to remove staples or paper clips on the bottom sheet of stacked paper; the two opposite side surfaces of the outer sides of the two second nail boxes 24 are both second nail shaving opening surfaces 25, and are connected to the waste paper barrel through through holes 26 set at two corners of the lower cover 2 of the shredder to remove excess staples or paper clips. Fig.11 In this embodiment, the two inner side surfaces of the two left and right second staple boxes 24 are both closed and tilted outwards, so as to facilitate the removal of staples or paper clips to move to the through holes 26 at the two corners of the lower cover 2 of the shredder.

[0179] Furthermore, the second paper box upper side wall 21, the second paper box paper stop wall 22, the second nail receiving box 24 and the second paper box lower side wall 23 are integrally formed.

[0180] Furthermore, a second nail shaving plate (not shown) is provided at the corner portion where the two second nail containing boxes 24 and the lower side wall 23 of the second paper box are connected. Preferably, the second nail shaving plate is made of metal material. In this embodiment, the second nail shaving plate made of metal can effectively increase the nail shaving efficiency and extend its service life.

[0181] Fig. 9 In the embodiment, a plurality of second reinforcing ribs 27 are arranged between the upper part of the second nail containing box 24 and the lower side wall 23 of the second paper box. In actual operation, frequent nail shaving leads to accelerated wear between the two. The arrangement of the second reinforcing ribs 27 can effectively extend the service life of the second curved paper box 19.

[0182] Example 3 (Using the paper tray space)

[0183] like Figure 12-13 As shown, the present invention also discloses an automatic shredder with a curved lower paper structure, including a shredder upper cover 1, a shredder lower cover 2, a paper support box 3, a shredder cover 5, a paper pressing board 6, a paper pressing wheel group 7, a paper pickup wheel group 8, a paper inlet 9, a knife shaft group 10, a driving motor 11, a third nail container 28, a shell and a waste paper barrel, wherein:

[0184] The shredder upper cover 1 is fixedly connected to the shredder lower cover 2;

[0185] The paper support box 3 is arranged on the upper end surface of the inner side of the lower cover 2 of the shredder;

[0186] The shredder cover plate 5 is pivotally connected to one end of the shredder upper cover 1 and is used to close or open the shredder;

[0187] The paper pressing plate 6 is fixedly connected to the lower end surface of the shredder cover 5, and is used to press the stacked shredded papers placed on the paper supporting box 3 when the user covers the shredder cover 5;

[0188] The paper pressing wheel group 7 is arranged on the lower end surface of the paper pressing board 6, and is arranged vertically corresponding to the paper picking wheel group 8. In this embodiment, the number of the paper pressing wheel group 7 and the paper picking wheel group 8 are both 2, and this number is not limited. More or less numbers of the paper pressing wheel group 7 and the paper picking wheel group 8 are all within the protection scope of this embodiment.

[0189] The paper inlet 9 is opened on the paper supporting box 3;

[0190] The blade shaft assembly 10 is disposed inside the lower cover 2 of the shredder and is located directly below the paper inlet 9, and is used to crush the stacked paper to be shredded;

[0191] The driving motor 11 is disposed inside the lower cover 2 of the shredder and is electrically connected to the cutter shaft assembly 10 and the pickup wheel assembly 8, and is used to drive the cutter shaft assembly 10 and the pickup wheel assembly 8 to operate;

[0192] A side wall of the paper supporting box 3 away from the paper pressing wheel assembly 7 forms a third paper stop wall 29;

[0193] The pickup wheel group 8 is arranged inside the lower cover 2 of the shredder and is located on the side of the blade shaft group 10 away from the third paper stop wall 29. It is used to rotate the pickup wheel group 8 under the drive of the drive motor 11 to rub the bottom sheet of paper to be shredded stacked above the paper tray 3 toward the third paper stop wall 29 and move the paper in the opposite direction under the reaction force of the third paper stop wall 29, and then bend and deform at the paper inlet 9 to enter the paper inlet 9 downward. In this embodiment, the number of the pickup wheel groups 8 is two. In the actual design, there is no limitation on the number of pickup wheel groups 8, which can be three or more. In addition, the design concept of the single-sided pickup wheel group simplifies the pickup structure and saves economic costs.

[0194] The third staple box 28 is recessed at one end of the paper support box 3 and is used to collect the discarded staples or paper clips;

[0195] The housing is disposed below the lower cover 2 of the shredder and is fixedly connected to the lower cover 2 of the shredder;

[0196] The waste paper bucket is arranged inside the shell and is used for collecting paper scraps.

[0197] Furthermore, the length of the bottom of the paper supporting box 3 is smaller than the length of the stacked paper sheets to be shredded.

[0198] Preferably, the paper pressing plate 6 includes a horizontal paper pressing plate 30 and a vertical paper pressing plate 31, wherein the horizontal paper pressing plate 30 presses the stacked paper to be shredded onto the paper supporting box 3, and the vertical paper pressing plate 31 presses the portion of the stacked paper to be shredded close to the third nail containing box 28 into the third nail containing box 28. In this embodiment, the length of the horizontal paper pressing plate 30 is greater than or equal to the length of the bottom of the paper supporting box 3.

[0199] Furthermore, the bottom plane of the paper supporting box 3 is horizontally or inclined. In this embodiment, the bottom plane of the paper supporting box 3 gradually inclines downward from an end away from the third paper stop wall 29 to an end close to the third paper stop wall 29 .

[0200] Preferably, an included angle C between the third paper stop wall 29 and the bottom plane of the paper supporting box 3 is less than or equal to 90 degrees.

[0201] Furthermore, a third nail shaving plate (not shown) is provided at the corner portion where the third nail containing box 28 is connected to the bottom plane of the paper supporting box 3. Preferably, the third nail shaving plate is made of metal material. In this embodiment, the third nail shaving plate made of metal material can effectively increase the nail shaving efficiency and extend its service life.

[0202] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An automatic paper shredder with a curved paper lowering structure, characterized in that: It includes a shredder upper cover, a shredder lower cover, a paper tray, a first bending paper tray, a shredder cover, a paper pressing board, a paper pressing wheel group, a paper picking wheel group, a paper inlet, a knife shaft group, a driving motor, a housing and a waste paper barrel, wherein: The shredder upper cover is fixedly connected to the shredder lower cover; The paper support box is arranged on the upper end surface of the inner side of the lower cover of the paper shredder; The first curved paper box is formed by sequentially connecting the first paper box upper side wall, the first paper box paper stop wall and the first paper box lower side wall to form a semi-open downward curved cavity, and is fixedly connected to the lower cover of the shredder, and is connected and combined with the paper supporting box to accommodate stacked paper to be shredded; The shredder cover is pivotally connected to one end of the shredder upper cover and is used to close or open the shredder; The paper pressing plate is fixedly connected to the lower end surface of the shredder cover plate, and is used to press the stacked shredded paper placed on the paper supporting box when the user closes the shredder cover plate; The paper pressing wheel group is arranged on the lower end surface of the paper pressing board, and is arranged correspondingly with the paper picking wheel group in the vertical direction; The paper inlet is opened on the paper supporting box; The knife shaft assembly is arranged inside the lower cover of the shredder and is located directly below the paper inlet, and is used to crush the stacked paper to be shredded; The driving motor is arranged inside the lower cover of the shredder and is electrically connected to the cutter shaft assembly and the paper pickup wheel assembly, and is used to drive the cutter shaft assembly and the paper pickup wheel assembly to operate; The pickup wheel assembly is arranged inside the lower cover of the shredder and is located on a side of the cutter shaft assembly away from the first bending paper box, and is used to rotate the pickup wheel assembly under the drive of the driving motor to rub the bottom sheet of paper to be shredded stacked above the paper supporting box toward the direction of the paper stop wall of the first paper box, and move the paper in the opposite direction under the action of the reaction force of the paper stop wall of the first paper box, so that the paper is bent and deformed at the paper inlet and enters the paper inlet downward; The housing is disposed below the lower cover of the shredder and is fixedly connected to the lower cover of the shredder; The waste paper bucket is arranged inside the housing and is used to collect paper scraps; The sum of the lengths of the first bending paper box and the paper supporting box is equal to the length of the paper to be shredded; The left and right ends of the lower side wall of the first paper box expand outwards near the paper stop wall of the first paper box to form a first nail receiving box; The folded corners at the connection between the two left and right first staple boxes and the lower side wall of the first paper box are used to remove staples or paper clips on the bottom sheet of stacked paper; The two facing side surfaces inside the left and right first staple containing boxes are both opening surfaces of the first staple shaving portion and are connected to the waste paper barrel for removing excess staples or paper clips.

2. The automatic paper shredder with a curved paper lowering structure according to claim 1, characterized in that: The bottom plane of the paper supporting box gradually slopes downward from an end away from the first curved paper box to an end close to the first curved paper box.

3. An automatic paper shredder with a curved lower paper structure according to claim 1 or 2, characterized in that: The angle between the first paper box paper stop wall and the bottom plane of the paper supporting box is less than or equal to 90 degrees.

4. The automatic paper shredder with a curved paper lowering structure according to claim 1, characterized in that: The first curved paper box and the paper supporting box are made in one piece or separately.

5. The automatic paper shredder with a curved paper lowering structure according to claim 4, characterized in that: When the first curved paper box and the paper supporting box are manufactured separately, the first curved paper box, the paper supporting box and the upper cover of the shredder are respectively connected by screwing, clamping, riveting or welding.

6. The automatic paper shredder with a curved paper lowering structure according to claim 1, characterized in that: The length of the first curved paper box is less than or equal to half of the length of the paper.

7. The automatic paper shredder with a curved paper lowering structure according to claim 1, characterized in that: The length of the first curved paper box is less than or equal to one quarter of the length of the paper.

8. The automatic paper shredder with a curved paper lowering structure according to claim 1, characterized in that: The entrance width of the first curved paper box is equal to the width of the paper supporting box.

9. The automatic paper shredder with a curved paper lowering structure according to claim 1, characterized in that: The first paper box upper side wall, the first paper box paper stop wall, the first nail containing box and the first paper box lower side wall are integrally formed.

10. The automatic paper shredder with a curved paper lowering structure according to claim 1, characterized in that: The first nail shaving plates are provided at the corner portions where the two left and right first nail containing boxes are connected to the lower side walls of the first paper box.

11. The automatic paper shredder with a curved paper lowering structure according to claim 1, characterized in that: A plurality of first reinforcing ribs are arranged between the upper portion of the first nail containing box and the lower side wall of the first paper box.

12. The automatic paper shredder with a curved paper lowering structure according to claim 1, characterized in that: The lower cover of the shredder is provided with a first accommodating cavity for accommodating the first curved paper box.

13. An automatic paper shredder with a curved paper lowering structure, characterized in that: It includes a shredder upper cover, a shredder lower cover, a paper tray, a second bending paper tray, a shredder cover, a paper pressing board, a paper pressing wheel group, a paper picking wheel group, a paper inlet, a knife shaft group, a driving motor, a housing and a waste paper barrel, wherein: The shredder upper cover is fixedly connected to the shredder lower cover; The paper support box is arranged on the upper end surface of the inner side of the lower cover of the paper shredder; The second curved paper box is formed by sequentially connecting the second paper box upper side wall, the second paper box paper stop wall and the second paper box lower side wall to form a semi-open upward curved cavity, and is fixedly connected to the upper cover of the shredder, and is connected and combined with the paper supporting box to accommodate stacked paper to be shredded; The shredder cover is pivotally connected to one end of the shredder upper cover and is used to close or open the shredder; The paper pressing plate is fixedly connected to the lower end surface of the shredder cover plate, and is used to press the stacked shredded paper placed on the paper supporting box when the user closes the shredder cover plate; The paper pressing wheel group is arranged on the lower end surface of the paper pressing board, and is arranged correspondingly with the paper picking wheel group in the vertical direction; The paper inlet is opened on the paper supporting box; The knife shaft assembly is arranged inside the lower cover of the shredder and is located directly below the paper inlet, and is used to crush the stacked paper to be shredded; The driving motor is arranged inside the lower cover of the shredder and is electrically connected to the cutter shaft assembly and the paper pickup wheel assembly, and is used to drive the cutter shaft assembly and the paper pickup wheel assembly to operate; The pickup wheel assembly is arranged inside the lower cover of the shredder and is located on a side of the cutter shaft assembly away from the second curved paper box, and is used to rotate the pickup wheel assembly under the drive of the driving motor to rub the bottom sheet of paper to be shredded stacked above the paper supporting box toward the paper stop wall of the second paper box and move the paper in the opposite direction under the reaction force of the paper stop wall of the second paper box, so that the paper is bent and deformed at the paper inlet and enters the paper inlet downward; The housing is disposed below the lower cover of the shredder and is fixedly connected to the lower cover of the shredder; The waste paper bucket is arranged inside the housing and is used to collect paper scraps; The sum of the lengths of the second curved paper box and the paper supporting box is equal to the length of the paper to be shredded; The left and right ends of the lower side wall of the second paper box expand outwards near the paper stop wall of the second paper box to form a second nail receiving box; The folded corners at the connection between the left and right second staple boxes and the lower side wall of the second paper box are used to remove staples or paper clips on the bottom sheet of stacked paper; The two opposite side surfaces of the outer sides of the left and right second staple boxes are both opening surfaces of the second staple shaving portion, and are connected to the waste paper barrel through through holes arranged at two corners of the lower cover of the shredder for removing excess staples or paper clips.

14. The automatic paper shredder with a curved paper lowering structure according to claim 13, characterized in that: The bottom plane of the paper supporting box gradually inclines upward from an end away from the second curved paper box to an end close to the second curved paper box.

15. An automatic paper shredder with a curved paper lowering structure according to claim 13 or 14, characterized in that: The angle between the second paper box paper stop wall and the bottom plane of the paper supporting box is less than or equal to 90 degrees.

16. The automatic paper shredder with a curved lower paper structure according to claim 13, characterized in that: The second curved paper box and the paper supporting box are made in one piece or separately.

17. The automatic paper shredder with a curved lower paper structure according to claim 16, characterized in that: When the second curved paper box and the paper supporting box are manufactured separately, the second curved paper box, the paper supporting box and the upper cover of the shredder are respectively connected by screwing, clamping, riveting or welding.

18. The automatic paper shredder with a curved lower paper structure according to claim 13, characterized in that: The length of the second curved paper box is less than or equal to one quarter of the length of the paper.

19. The automatic paper shredder with a curved lower paper structure according to claim 13, characterized in that: The entrance width of the second curved paper box is equal to the width of the paper supporting box.

20. The automatic paper shredder with a curved lower paper structure according to claim 13, characterized in that: The second paper box upper side wall, the second paper box paper stop wall, the second nail containing box and the second paper box lower side wall are integrally formed.

21. The automatic paper shredder with a curved lower paper structure according to claim 13, characterized in that: The second nail shaving plates are arranged at the corner portions where the two left and right second nail containing boxes are connected to the lower side walls of the second paper box.

22. The automatic paper shredder with a curved lower paper structure according to claim 13, characterized in that: A plurality of second reinforcing ribs are arranged between the upper portion of the second nail containing box and the lower side wall of the second paper box.

23. The automatic paper shredder with a curved lower paper structure according to claim 13, characterized in that: The upper cover of the paper shredder is provided with a second accommodating cavity for accommodating the second curved paper box.

24. An automatic paper shredder with a curved paper lowering structure, characterized in that: It includes a shredder upper cover, a shredder lower cover, a paper tray, a shredder cover, a paper pressing board, a paper pressing wheel group, a paper picking wheel group, a paper inlet, a knife shaft group, a driving motor, a third nail box, a shell and a waste paper barrel, wherein: The shredder upper cover is fixedly connected to the shredder lower cover; The paper support box is arranged on the upper end surface of the inner side of the lower cover of the paper shredder; The shredder cover is pivotally connected to one end of the shredder upper cover and is used to close or open the shredder; The paper pressing plate is fixedly connected to the lower end surface of the shredder cover plate, and is used to press the stacked shredded paper placed on the paper supporting box when the user closes the shredder cover plate; The paper pressing wheel group is arranged on the lower end surface of the paper pressing board, and is arranged correspondingly with the paper picking wheel group in the vertical direction; The paper inlet is opened on the paper supporting box; The knife shaft assembly is arranged inside the lower cover of the shredder and is located directly below the paper inlet, and is used to crush the stacked paper to be shredded; The driving motor is arranged inside the lower cover of the shredder and is electrically connected to the cutter shaft assembly and the paper pickup wheel assembly, and is used to drive the cutter shaft assembly and the paper pickup wheel assembly to operate; The side wall of the paper supporting box away from the paper pressing wheel assembly forms a third paper stop wall; The pickup wheel assembly is arranged inside the lower cover of the shredder and is located on a side of the cutter shaft assembly away from the third paper stop wall, and is used to rotate the pickup wheel assembly under the drive of the drive motor to rub the bottom sheet of paper to be shredded stacked above the paper support box toward the third paper stop wall and move the paper in the opposite direction under the reaction force of the third paper stop wall so that the paper is bent and deformed at the paper inlet and enters the paper inlet downward; The third staple box is recessed at one end of the paper support box and is used to collect the staples or paper clips that are removed; The housing is disposed below the lower cover of the shredder and is fixedly connected to the lower cover of the shredder; The waste paper bucket is arranged inside the housing and is used to collect paper scraps; The press paper comprises a horizontal press paper and a vertical press paper, wherein the horizontal press paper presses the stacked paper to be shredded onto the paper support box, and the vertical press paper presses the portion of the stacked paper to be shredded close to the third nail containing box into the third nail containing box; A third nail shaving plate is provided at the corner portion where the third nail containing box is connected to the bottom plane of the paper supporting box.

25. The automatic paper shredder with a curved lower paper structure according to claim 24, characterized in that: The length of the bottom of the paper supporting box is smaller than the length of the stacked papers to be shredded.

26. The automatic paper shredder with a curved lower paper structure according to claim 24, characterized in that: The bottom plane of the paper supporting box is arranged horizontally or inclined.

27. The automatic paper shredder with a bent lower paper structure according to claim 26, characterized in that: The bottom plane of the paper supporting box gradually slopes downward from an end away from the third paper blocking wall to an end close to the third paper blocking wall.

28. The automatic paper shredder with a curved lower paper structure according to claim 24, characterized in that: The included angle between the third paper stop wall and the bottom plane of the paper supporting box is less than or equal to 90 degrees.

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