Blade structure of paper shredder
By designing an annular blade array with chamfered structure, the problem of uneven stress on the existing paper shredder blades is solved, and a more efficient paper shredding process and lower motor costs are achieved.
Patent Information
- Application Number
- CN202421153816.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-24
AI Technical Summary
The blades of existing paper shredders are designed in a tooth-like manner, which leads to unbalanced stress on paper grabbing and affects the efficiency of paper shredding.
A blade structure of a paper shredder is designed, in which the outer side of the blade is chamfered, the blades are arranged in an annular array with the cutting plate as the center, and the blades on the upper and lower sides are distributed staggered and equidistantly in the horizontal direction.
Through balanced paper gripping, paper shredding resistance and motor power consumption can be reduced, motor cost can be reduced, paper shredding efficiency can be improved, and paper jams can be effectively avoided.
Smart Images
Figure CN222490360U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of paper shredders, in particular to a blade structure of a paper shredder. Background Art
[0002] A shredder is composed of a set of rotating blades, a paper comb and a driving motor. Paper is fed in from the middle of the interlocking blades and is cut into many small pieces of paper to achieve the purpose of confidentiality. The shredding method refers to the shape of the paper after it is processed by the shredder and cut by the shredder. In the prior art, a shredder is used to shred paper. The shredder relies on the blades on the blade group in the shredder to cut the paper. The existing blades use toothed blades, so when the toothed blades shred paper, the force of grabbing the paper is uneven, which seriously affects the shredding efficiency. Therefore, we introduce a blade structure for a shredder. Utility Model Content
[0003] The main purpose of the utility model is to provide a blade structure of a paper shredder, which can effectively solve the problems in the background technology.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A blade structure of a paper shredder, comprising a driving motor, wherein the output end of the driving motor is fixedly connected to a first gear, the middle of the right end of the first gear is fixedly connected to a first rotating rod, the lower part of the outer surface of the first gear is meshedly connected to a second gear, the middle of the left end of the second gear is fixedly connected to a short shaft rod, the middle of the right end of the second gear is fixedly connected to a second rotating rod, and the outer surfaces of the first rotating rod and the outer surfaces of the second rotating rod are both fixedly connected to a plurality of main body devices;
[0006] The main device comprises a cutter disc, a connecting groove is provided in the middle of the right end of the cutter disc, a plurality of blades are fixedly connected to the outer surface of the cutter disc, and the cutter disc is fixedly connected to the outer surface of the No. 1 rotating rod.
[0007] Preferably, the plurality of blades are arranged in a ring array with the blade disc as the center.
[0008] Preferably, outer sides of several of the blades are chamfered.
[0009] Preferably, the plurality of blades on the upper side and the plurality of blades on the lower side are distributed in a staggered manner.
[0010] Preferably, the plurality of blades are distributed laterally and equidistantly.
[0011] Preferably, the position and size of the connecting groove are matched with the position and size of the first rotating rod and the second rotating rod.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. The outer sides of several blades are chamfered, and several blades are arranged in a ring array with the blade disc as the center, so that when shredding, the force of grabbing paper is balanced, the shredding resistance and motor power consumption are reduced, the motor cost is reduced, and the shredding efficiency is improved;
[0014] 2. The upper blades are staggered with the lower blades, and one side of the curved blades is not parallel to the direction of paper travel, which can drag the paper and effectively avoid paper jams. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of a blade structure of a paper shredder according to the utility model;
[0016] Figure 2 This is a schematic diagram of the overall structure of the main device of the blade structure of a paper shredder of the utility model;
[0017] Figure 3 It is a schematic diagram of the enlarged structure of the details of the blade structure of a paper shredder of the utility model at A;
[0018] Figure 4 This is a schematic diagram of the enlarged structure of the detail B of the blade structure of a paper shredder of the utility model.
[0019] In the figure: 1. driving motor; 2. gear No. 1; 3. rotating rod No. 1; 4. short shaft; 5. gear No. 2; 6. rotating rod No. 2; 7. main device; 71. cutter disc; 72. blade; 73. connecting groove. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] See also Figure 1-4 , the utility model provides a technical solution:
[0024] A blade structure of a paper shredder, comprising a driving motor 1, wherein the output end of the driving motor 1 is fixedly connected to a first gear 2, a first rotating rod 3 is fixedly connected to the middle of the right end of the first gear 2, a second gear 5 is meshedly connected to the lower part of the outer surface of the first gear 2, a short shaft rod 4 is fixedly connected to the middle of the left end of the second gear 5, a second rotating rod 6 is fixedly connected to the middle of the right end of the second gear 5, and a plurality of main body devices 7 are fixedly connected to the outer surfaces of the first rotating rod 3 and the outer surfaces of the second rotating rod 6;
[0025] The main device 7 includes a cutter disc 71, a connecting groove 73 is opened in the middle of the right end of the cutter disc 71, a plurality of blades 72 are fixedly connected to the outer surface of the cutter disc 71, and the cutter disc 71 is fixedly connected to the outer surface of the No. 1 rotating rod 3;.
[0026] In this embodiment, a plurality of blades 72 are arranged in a circular array with the cutter disc 71 as the center; the outer sides of the plurality of blades 72 are chamfered; the plurality of blades 72 on the upper side are staggered with the plurality of blades 72 on the lower side; the plurality of blades 72 are distributed one by one at equal intervals in the horizontal direction; the position and size of the connecting groove 73 are adapted to the position and size of the first rotating rod 3 and the second rotating rod 6; the position and size of the connecting groove 73 are adapted to the position and size of the first rotating rod 3 and the second rotating rod 6, so that the plurality of cutter discs 71 are fixedly mounted on the outer surfaces of the first rotating rod 3 and the second rotating rod 6, respectively, and the outer sides of the plurality of blades 72 are chamfered, and the plurality of blades 72 are arranged in a circular array with the cutter disc 71 as the center, so that when shredding paper, the force of grabbing paper is balanced, the resistance to shredding and the power consumption of the motor are reduced, and the efficiency of shredding paper is improved.
[0027] It should be noted that the utility model is a blade structure of a shredder. During use, shredded paper is placed on a plurality of cutter discs 71. By starting the drive motor 1, the No. 1 gear 2 is driven to rotate, so that it meshes with the No. 2 gear 5 to rotate, and at the same time, the cutter disc 71 on the No. 1 rotating rod 3 and the cutter disc 71 on the No. 2 rotating rod 6 are driven to rotate, and a plurality of blades 72 shred the paper. Since the outer sides of the plurality of blades 72 are chamfered structures, and the plurality of blades 72 are arranged in a ring array with the cutter disc 71 as the center, when shredding paper, the force of grabbing the paper is balanced, which reduces the resistance to shredding and the power consumption of the motor, reduces the cost of the motor, improves the efficiency of shredding, and has a good use effect.
[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A blade structure for a paper shredder, comprising a drive motor (1), characterized in that: The output end of the driving motor (1) is fixedly connected to a first gear (2), the middle of the right end of the first gear (2) is fixedly connected to a first rotating rod (3), the lower part of the outer surface of the first gear (2) is meshingly connected to a second gear (5), the middle of the left end of the second gear (5) is fixedly connected to a short shaft rod (4), the middle of the right end of the second gear (5) is fixedly connected to a second rotating rod (6), and the outer surfaces of the first rotating rod (3) and the outer surfaces of the second rotating rod (6) are both fixedly connected to a plurality of main body devices (7); The main body device (7) comprises a cutter disc (71), a connection groove (73) is provided in the middle of the right end of the cutter disc (71), a plurality of blades (72) are fixedly connected to the outer surface of the cutter disc (71), and the cutter disc (71) is fixedly connected to the outer surface of the No. 1 rotating rod (3).
2. The blade structure of a paper shredder according to claim 1, characterized in that: The plurality of blades (72) are arranged in a ring array with the blade disc (71) as the center.
3. The blade structure of a paper shredder according to claim 1, characterized in that: The outer sides of the plurality of blades (72) are all chamfered.
4. The blade structure of a paper shredder according to claim 1, characterized in that: The plurality of blades (72) on the upper side and the plurality of blades (72) on the lower side are distributed in a staggered manner.
5. The blade structure of a paper shredder according to claim 1, characterized in that: The plurality of blades (72) are distributed laterally and equidistantly.
6. The blade structure of a paper shredder according to claim 1, characterized in that: The position and size of the connecting groove (73) are matched with the position and size of the first rotating rod (3) and the second rotating rod (6).