Distance-adjustable paper shredder structure

Abstract

The utility model relates to the technical field of paper shredders, in particular to a distance-adjustable paper shredder structure which comprises a bottom box, a shredded paper collecting box is movably inserted into the left end of the bottom box, a shredding box is fixedly connected to the upper end of the bottom box, and a control keyboard is fixedly connected to the middle of the left end of the shredding box. An upper cover plate is movably installed at the upper end of the smashing box, a paper inlet is formed in the middle of the upper end of the upper cover plate, four screw hole grooves are formed in the upper portion of the front end and the upper portion of the rear end of the smashing box, and screws are movably connected into the two longitudinally-distributed screw hole grooves in a threaded mode. According to the paper shredder structure capable of adjusting the distance, the paper shredder structure capable of adjusting the distance can flexibly adapt to paper of different thicknesses and materials by arranging the structure capable of adjusting the distance, the problem that the distance of the blades cannot be adjusted is solved, meanwhile, the blades and the tooth crushing cutters which are distributed in a staggered mode can enable the paper to be shredded more evenly, the paper shredding effect is improved, follow-up processing is facilitated, and the confidentiality effect is enhanced; operation is convenient, and shredded paper is convenient to collect.

Description

Technical Field

[0001] This utility model relates to the field of paper shredder technology, and in particular to a paper shredder structure with adjustable distance. Background Technology

[0002] In modern office and information security fields, paper shredders are widely used to process various confidential documents and waste materials. As the requirements for shredding effect and efficiency continue to increase, the existing paper shredder structure has gradually exposed some problems. Among them, the inability to adjust the distance of the shredder blades is a prominent shortcoming. This makes it difficult for the paper shredder to adapt to paper of different thicknesses and materials, limiting its application range. At the same time, uneven shredding is also common, resulting in paper particles of different sizes. This not only affects subsequent processing but may also reduce the confidentiality effect. Therefore, the development of a paper shredder structure with adjustable distance is of great practical significance. Summary of the Invention

[0003] The main objective of this invention is to provide an adjustable-distance paper shredder structure, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An adjustable-distance paper shredder structure includes a base box, a shredded paper collection box movably inserted into the left end of the base box, a shredding box fixedly connected to the upper end of the base box, a control keyboard fixedly connected to the middle of the left end of the shredding box, a top cover plate movably installed on the upper end of the shredding box, a paper inlet opening in the middle of the upper end of the top cover plate, four screw holes opening on the upper front and upper rear ends of the shredding box, two of the longitudinally distributed screw holes opening on the upper front and upper rear ends of the shredding box, screws being threadedly connected to the two screw holes, a left-end through-hole limiting groove opening on the left side of the inner front wall and the left side of the inner rear wall of the shredding box, and a paper shredding device fixedly connected to the right front end of the shredding box.

[0006] Preferably, the paper shredding device includes a servo motor, which is fixedly connected to the front end of the shredding box. The output end of the servo motor passes through the left front end of the shredding box and is fixedly connected to a connecting column. The rear end of the connecting column is movably connected to the shredding box through a bearing. Several shredding blades and several curved shredding teeth are fixedly connected to the outer surface of the connecting column. An adjustable shredding spacing structure is provided on the left side of the connecting column.

[0007] Preferably, the plurality of the crushing blades and the plurality of the curved crushing teeth are distributed alternately and staggeredly.

[0008] Preferably, the adjustable crushing spacing structure includes a fixed rod, on the outer surface of which are fixedly connected a plurality of crushing blades and a plurality of curved crushing teeth. Limiting rods are fixedly connected to both the front and rear ends of the fixed rod. A retaining plate is fixedly connected to the upper end of each of the two retaining rods. Four through threaded holes are opened on the right side of the ends of the two retaining plates that are far apart from each other. A slot is opened on the end of each of the two retaining rods that is close to the crushing box.

[0009] Preferably, the plurality of the second crushing blades and the plurality of the second curved crushing teeth are alternately staggered, and the plurality of the second crushing blades and the plurality of the second curved crushing teeth do not come into contact with the plurality of the first crushing blades and the plurality of the first curved crushing teeth, respectively.

[0010] Preferably, the two limiting rods are movably inserted into the two limiting grooves respectively.

[0011] Preferably, the two limiting rods are respectively engaged with the front and rear walls of the crushing box through two slots, and the two clamping plates are respectively tightly abutted against the front and rear ends of the crushing box.

[0012] Preferably, the four threaded holes match the size of the screws, and the two clamping plates are detachably connected to the crushing box through two longitudinally distributed threaded holes and two screws, respectively.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this invention, the adjustable shredding spacing structure allows for easy replacement of the fixing rods with different spacings according to the paper thickness and material. When processing thick paper, increasing the blade spacing can prevent paper jams and ensure a smooth shredding process. When processing thin paper, decreasing the spacing can result in finer shredding and improved confidentiality. At the same time, the alternating staggered distribution of blades and shredding teeth ensures more even force on the paper during shredding, improving the shredding effect. This flexible spacing adjustment function allows the shredder to adapt to various office scenarios and meet the diverse shredding needs of different users.

[0015] In this invention, the first shredding blade and the first curved toothed blade, as well as the second shredding blade and the second curved toothed blade, are alternately and staggered, so that the paper can be subjected to cutting forces from multiple directions and at multiple locations during the shredding process. When the paper enters the shredding area, these staggered blades and toothed blades act in sequence, preventing the paper from being concentrated in one place and thus effectively reducing uneven shredding. This design ensures that the size of the shredded paper particles tends to be uniform, which not only facilitates the subsequent processing of shredded paper scraps, such as recycling, but also greatly enhances the confidentiality effect and prevents the risk of information recovery that may be caused by large differences in the size of the shredded paper particles. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of an adjustable-distance paper shredder according to the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the shredder box in an adjustable-distance paper shredder according to this utility model.

[0018] Figure 3 This is a schematic diagram of the overall structure of a paper shredder device with an adjustable distance according to the present invention.

[0019] Figure 4 This is a schematic diagram of the adjustable shredding spacing structure of an adjustable shredder according to the present invention.

[0020] In the diagram: 1. Base box; 2. Shredded paper collection box; 3. Shredder; 4. Control keyboard; 5. Top cover; 6. Paper inlet; 7. Shredder; 8. Screw; 9. Screw hole groove; 10. Limiting groove; 71. Servo motor; 72. Connecting column; 73. Shredder blade one; 74. Curved shredder blade one; 75. Adjustable shredding spacing structure; 751. Fixing rod; 752. Shredder blade two; 753. Curved shredder blade two; 754. Limiting rod; 755. Clamping plate; 756. Threaded hole; 757. Slot. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. 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 an indirect connection through an intermediate medium; it can be a connection within 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] An adjustable-distance paper shredder structure includes a base box 1, a shredded paper collection box 2 movably inserted into the left end of the base box 1, a shredding box 3 fixedly connected to the upper end of the base box 1, a control keyboard 4 fixedly connected to the middle of the left end of the shredding box 3, an upper cover plate 5 movably installed on the upper end of the shredding box 3, a paper inlet 6 opened in the middle of the upper end of the upper cover plate 5, four screw hole slots 9 opened on the upper front and upper rear ends of the shredding box 3, and screws 8 are threadedly connected to the two longitudinally distributed screw hole slots 9, a left-end through-limiting groove 10 opened on the left side of the inner front wall and the left side of the inner rear wall of the shredding box 3, and a paper shredding device 7 fixedly connected to the right side of the front end of the shredding box 3.

[0026] In this embodiment, the paper shredding device 7 includes a servo motor 71, which is fixedly connected to the front end of the shredding box 3. The output end of the servo motor 71 passes through the left front end of the shredding box 3 and is fixedly connected to a connecting post 72. The rear end of the connecting post 72 is movably connected to the shredding box 3 via a bearing. Several shredding blades 73 and several curved toothed blades 74 are fixedly connected to the outer surface of the connecting post 72. An adjustable shredding spacing structure 75 is provided on the left side of the connecting post 72. The several shredding blades 73 and several curved toothed blades 74 are alternately staggered. The adjustable shredding spacing structure 75 includes a fixing rod 751, which is fixedly connected to several shredding blades 752 and several curved toothed blades 753. Limiting rods 754 are fixedly connected to both the front and rear ends of the fixing rod 751. A clamping plate 75 is fixedly connected to the upper end of each of the two limiting rods 754. 5. Each of the two clamping plates 755 has four through threaded holes 756 on the right side of its far-away ends. Each of the two limiting rods 754 has a slot 757 on its end near the crushing box 3. Several crushing blades 752 and several curved crushing teeth 753 are alternately staggered. The several crushing blades 752 and several curved crushing teeth 753 do not contact the several crushing blades 73 and several curved crushing teeth 74 respectively. The two limiting rods 754 are movably inserted into the two limiting grooves 10 respectively. The two limiting rods 754 are respectively engaged with the front and rear walls of the crushing box 3 through the two slots 757. The two clamping plates 755 are tightly abutted against the front and rear ends of the crushing box 3 respectively. The four threaded holes 756 match the size of the screws 8. The two clamping plates 755 are detachably connected to the crushing box 3 through the two longitudinally distributed threaded holes 756 and the two screws 8 respectively.

[0027] Through the above solution: When the paper shredder is running, the servo motor 71 drives the connecting column 72 to rotate, which in turn drives the first shredding blade 73 and the first curved shredding tooth blade 74 on it to rotate for initial shredding. The fixed rod 751 in the adjustable shredding spacing structure 75 is engaged with the shredding box 3 through the limiting rod 754. The second shredding blade 752 and the second curved shredding tooth blade 753 on it work together with the first shredding blade 73 and the first curved shredding tooth blade 74 to further shred the paper. When it is necessary to adjust the shredding spacing, the screw 8 is unscrewed, the limiting rod 754 is pulled out, and the adjustable shredding spacing structure 75 with a suitable spacing is replaced. Then, the screw 8 is used to fix the clamping plate 755 to the shredding box 3 through the threaded hole 756. Thus, the problem of the blades not being able to be adjusted is solved by the adjustable shredding spacing structure 75, so that the paper shredder can adapt to paper of different thicknesses and materials, expanding its application range. The alternating staggered distribution of the blades and shredding tooth blades increases the cutting points, making the paper more evenly stressed, effectively improving the uneven shredding situation, making the shredded paper particles more uniform, and improving the convenience of subsequent processing and the confidentiality effect.

[0028] It should be noted that this utility model is an adjustable-distance paper shredder structure. During use, firstly, the paper shredder is turned on via the control keyboard 4, and paper is fed into the paper inlet 6. The servo motor 71 starts, driving the connecting column 72 to rotate. The alternatingly staggered shredding blades 73 and curved toothed blades 74 on the connecting column 72 begin to initially cut the paper. Simultaneously, the alternatingly staggered shredding blades 752 and curved toothed blades 753 on the fixed rod 751 work in conjunction with the alternatingly staggered shredding blades 73 and 74 to further shred the paper, causing the shredded paper scraps to fall into the shredder. In the collection box 2, when it is necessary to process paper of different thicknesses or materials, unscrew the screw 8, pull out the limiting rod 754 from the limiting groove 10, replace it with an adjustable shredding spacing structure 75 with a suitable spacing, then insert the limiting rod 754 into the limiting groove 10, and engage it with the shredding box 3 through the slot 757. Finally, use the screw 8 to pass through the threaded hole 756 to fix the card plate 755 to the shredding box 3. Therefore, the adjustable spacing paper shredder solves the problem of blades not being able to be adjusted through the adjustable shredding spacing structure 75, enabling the paper shredder to adapt to different types of paper. The staggered distribution of blades and shredding teeth ensures uniform shredding, improving the scope of use and the confidentiality effect.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A structure of a distance-adjustable paper shredder comprising a bottom box (1), characterized in that: The left end of the bottom box (1) is movably inserted with a shredded paper collecting box (2), the upper end of the bottom box (1) is fixedly connected with a shredding box (3), the left end middle part of the shredding box (3) is fixedly connected with a control keyboard (4), the upper end of the shredding box (3) is movably installed with an upper cover plate (5), the upper end middle part of the upper cover plate (5) is opened with a paper inlet (6), the front end upper part and the rear end upper part of the shredding box (3) are both opened with four screw hole grooves (9), the longitudinally distributed two screw hole grooves (9) are both movably connected with screws (8) in a threaded manner, the left part of the inner front wall and the left part of the inner rear wall of the shredding box (3) are both opened with a left end through limiting groove (10), and the front right part of the shredding box (3) is fixedly connected with a shredded paper device (7). The shredded paper device (7) comprises a servo motor (71), the servo motor (71) is fixedly connected with the front end of the shredding box (3), the output end of the servo motor (71) penetrates through the front left part of the shredding box (3) and is fixedly connected with a connecting column (72), the rear end of the connecting column (72) is movably connected with the shredding box (3) through a bearing, the outer surface of the connecting column (72) is fixedly connected with a plurality of shredding blades one (73) and a plurality of curved broken tooth knives one (74), and the left side of the connecting column (72) is provided with an adjustable shredding spacing structure (75); the adjustable shredding spacing structure (75) comprises a fixed rod (751), the outer surface of the fixed rod (751) is fixedly connected with a plurality of shredding blades two (752) and a plurality of curved broken tooth knives two (753), the front end and the rear end of the fixed rod (751) are both fixedly connected with a limiting rod (754), the upper end of the two limiting rods (754) is both fixedly connected with a clamping plate (755), the right part of the ends of the two clamping plates (755) away from each other is both opened with four through threaded holes (756), and the end close to the shredding box (3) of the two limiting rods (754) is both opened with a slot (757).

2. A structure of a distance-adjustable paper shredder according to claim 1, characterized in that: The plurality of shredding blades one (73) and the plurality of curved broken tooth knives one (74) are alternately staggered.

3. The structure of a distance-adjustable paper crusher according to claim 1, characterized in that: The plurality of shredding blades two (752) and the plurality of curved broken tooth knives two (753) are alternately staggered, and the plurality of shredding blades two (752) and the plurality of curved broken tooth knives two (753) are not in contact with the plurality of shredding blades one (73) and the plurality of curved broken tooth knives one (74) respectively.

4. The structure of a distance-adjustable paper crusher according to claim 1, characterized in that: The two limiting rods (754) are movably inserted into the two limiting grooves (10) respectively.

5. The structure of a distance-adjustable paper crusher according to claim 1, characterized in that: The two limiting rods (754) are clamped with the front plate wall and the rear plate wall of the shredding box (3) through the two slots (757) respectively, and the two clamping plates (755) are tightly abutted with the front end and the rear end of the shredding box (3) respectively.

6. The structure of a distance-adjustable paper crusher according to claim 1, characterized in that: The four threaded holes (756) are consistent in size with the screws (8), and the two clamping plates (755) are detachably connected with the shredding box (3) through the longitudinally distributed two threaded holes (756) and the two screws (8) respectively.

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