Improved blade for paper shredder

Abstract

The utility model relates to an improved blade for a paper shredder, which belongs to the technical field of paper shredding knives and comprises a plurality of bulges which are respectively fixed on the peripheral sides of at least two groups of cutter heads at intervals along the circumferential directions of the at least two groups of cutter heads. According to the utility model, the plurality of bulges are fixed on the peripheral side of the cutter head along the circumferential direction at intervals, so that shredded paper strips form wave-shaped fluffy paper strips similar to raffia paper under the impact of high-speed rotation of the bulges and the occlusion among the gears, and the shredded paper strips are full of expandability, can be used as filling and packaging materials and can be reused.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper cutter technology field especially relates to an improved blade for paper shredder. BACKGROUND

[0002] With the continuous improvement of economic level, more and more office places or families have paperboard paper shredder. But the traditional paper shredder uses the function to be relatively single, and the paper that is pulverized is discarded as garbage generally.

[0003] With the continuous enhancement of green environmental protection consciousness, more and people hope that the paper strip that is shredded can be repeatedly used. And the transmission paper shredder cannot realize the above-mentioned function.

[0004] Therefore, how to design an improved blade for paper shredder that can repeatedly use the paper strip that is shredded is the problem that the person skilled in the art needs to solve urgently. INVENTION CONTENTS

[0005] The utility model provides an improved blade for paper shredder, solves the technical problem that the paper strip that the existing paper shredder is shredded cannot be repeatedly used.

[0006] The utility model solves the technical scheme of the above-mentioned technical problem, an improved blade for paper shredder, paper shredder includes the casing, the cutter shaft and multiple cutter discs, the opposite two side walls of casing are equipped with at least two relative arrangement's connecting hole respectively;The cutter shaft is at least two and its two ends are rotated and are connected in the relative arrangement's two connecting holes in bearing respectively;Multiple cutter discs are divided into at least two groups, and the middle part of at least two groups cutter discs is equipped with shaft hole and is along the circumferential interval of the cutter shaft and is fixed on at least two cutter shafts, and multiple cutter discs of at least two groups are staggered arrangement;Including: multiple protrusions, multiple protrusions are along the circumferential interval of multiple cutter discs of at least two groups and are fixed on the outer circumferential side of multiple cutter discs of at least two groups respectively.

[0007] The utility model has the advantages that by the circumferential interval fixed multiple protrusions on the outer circumferential side of cutter disc, make the paper strip that is torn and shredded under the high-speed rotation impact of these convex points and the occlusion between gear, form the fluffy paper strip similar to raffia grass paper, so that the paper strip that is shredded is full of expansibility, can be used as filling packaging material, and is repeatedly used.

[0008] On the basis of the above-mentioned technical scheme, the utility model can also be improved as follows.

[0009] Further, at least two groups cutter discs and multiple protrusions thereon are integrally formed.

[0010] Further, the cross section of multiple protrusions is trapezoidal structure.

[0011] Furthermore, the cross-section of the shaft hole is square. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of an improved blade for a paper shredder mounted on a paper shredder cutter shaft according to the present invention;

[0013] Figure 2 This is a three-dimensional structural diagram of an improved blade for a paper shredder according to the present invention;

[0014] Figure 3 This utility model relates to an improved blade for a paper shredder, which produces paper strips.

[0015] The attached diagram lists the components represented by each number as follows:

[0016] 1. Housing; 11. Connecting hole; 2. Cutter shaft; 3. Cutter disc; 31. Shaft hole; 4. Protrusion. Detailed Implementation

[0017] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0018] like Figure 1 As shown, an improved blade for a paper shredder is disclosed. The paper shredder includes a housing 1, a blade shaft 2, and multiple blade discs 3. At least two oppositely arranged connecting holes 11 are provided on the opposite side walls of the housing 1. There are at least two blade shafts 2, and their two ends are rotatably connected to the two oppositely arranged connecting holes 11 by bearings. The multiple blade discs 3 are divided into at least two groups, and each of the at least two groups of blade discs 3 has a shaft hole 31 in the middle and is fixedly fitted onto the at least two blade shafts 2 at intervals along the circumference of the blade shafts 2. The multiple blade discs 3 of the at least two groups are arranged alternately. The shredder also includes multiple protrusions 4, which are fixed at intervals along the circumference of the multiple blade discs 3 of the at least two groups on the outer periphery of the multiple blade discs 3 of the at least two groups.

[0019] In some specific embodiments, at least two sets of cutter discs 3 and their multiple protrusions 4 are integrally formed structures.

[0020] Specifically, the cross-sections of the multiple protrusions 4 can all be trapezoidal structures.

[0021] Specifically, the cross-section of the shaft hole 31 can be a square structure.

[0022] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An improved blade for a paper shredder, the paper shredder comprising a housing (1), a blade shaft (2) and a plurality of blade discs (3), opposite side walls of the housing (1) are respectively provided with at least two oppositely arranged connecting holes (11); the blade shaft (2) is at least two and its two ends are respectively rotatably connected in the oppositely arranged two connecting holes (11) through bearings; the plurality of blade discs (3) are divided into at least two groups, the middle part of the blade discs (3) in the at least two groups are respectively provided with shaft holes (31) and are fixed on the at least two blade shafts (2) along the circumferential direction of the blade shaft (2), and the plurality of blade discs (3) in the at least two groups are arranged alternately; characterized in that, Comprise: a plurality of protrusions (4), a plurality of said protrusions (4) are respectively fixed on the outer circumferential side of a plurality of said cutter heads (3) in at least two groups along the circumferential direction.

2. The improved blade for a paper shredder according to claim 1, wherein At least two groups of said cutter heads (3) and a plurality of said protrusions (4) thereon are an integral structure.

3. The improved blade for a paper shredder according to claim 1, wherein The cross section of a plurality of said protrusions (4) is a trapezoidal structure.

4. The improved blade for a paper shredder according to claim 1, wherein The cross section of said shaft hole (31) is a square structure.

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