Paper shredder

Abstract

The paper shredder comprises a cover plate and a mounting base, the cover plate is mounted on the mounting base, a rotary connecting mechanism is arranged between the cover plate and the mounting base, the cover plate can be rotationally opened and closed on the mounting base through the rotary connecting mechanism, the rotary connecting mechanism comprises a rotary shaft and a reset elastic piece, and the reset elastic piece is arranged on the rotary shaft. The rotating shaft is rotatably installed on the installation base, the cover plate is provided with a first side plate extending in the length direction, the rotating shaft is provided with a connecting part used for being connected with the first side plate, and the rotating shaft is sleeved with the reset elastic piece so that the cover plate can rotate and reset. The rotating shaft and the reset elastic piece are both located between the first side plate and the inner wall of the installation base, so that the rotating connection mechanism can be installed more compactly, the gap between the cover plate and the installation base is smaller, and the smoothness of rotating opening and closing of the cover plate is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of office equipment, more particularly to a paper shredder. BACKGROUND

[0002] A paper shredder is a common office equipment, which mainly functions to cut paper or other document materials into small pieces for the purpose of privacy and security in handling sensitive information. A paper shredder is usually composed of a set of rotating blades, a paper guide comb and a driving motor. Paper is fed into the gap between the interlocking blades and is cut into many small pieces. However, the pulling force generated by the paper shredder during the shredding process may pull fingers or other foreign objects into the paper inlet, posing a certain safety hazard. In addition, the entry of excessive paper or larger hard objects may also cause the paper shredder to jam, affecting the normal operation of the machine, even damaging the blades, reducing the shredding efficiency and the service life of the machine. In order to solve these problems, the existing paper shredder is usually provided with a cover plate at the paper inlet. This cover plate can close the paper inlet by opening and closing, and a safety switch triggered by a large amount of paper entering can stop the machine, thereby preventing fingers from contacting the blades or foreign objects from falling in, and improving the safety of use. However, the existing cover plate of the paper shredder has some disadvantages, such as large size, heavy weight, many parts, and complex and laborious opening and closing of the cover plate.

[0003] In view of the above problems, a utility model patent with the publication number CN217631938U discloses a paper shredder cover plate rotating connection assembly for the rotating connection between the cover plate and the upper cover of a paper shredder, which comprises a mounting seat, a rotating shaft and a torsion spring. The mounting seat is fixed on the cover plate by a first mounting member. The rotating shaft is arranged at one end of the mounting seat. The torsion spring is sleeved on the rotating shaft, and its execution end is fixed on the rotating shaft, and its fixed end is fixed on the upper cover by a second mounting member. The torsion spring applies an elastic force to the rotating shaft and the cover plate away from the rotation of the upper cover. In this technical solution, the rotating connection between the cover plate and the upper cover is achieved by setting the mounting seat, the rotating shaft and the torsion spring, which simplifies the structure. However, in this solution, a side plate is arranged on the cover plate, the mounting seat is arranged on the inner side of the side plate, the rotating shaft is vertically distributed with the mounting seat, the rotating shaft needs to pass through the side plate and extend to the outer side of the side plate, and then the torsion spring is sleeved on the rotating shaft. This installation mode will cause a large gap between the side plate of the cover plate and the upper cover, which not only has poor appearance, but also exposes part of the rotating shaft and the torsion spring, so that dust and other impurities can easily enter through the gap between the side plate and the upper cover, thereby affecting the smooth rotation of the cover plate. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a paper shredder, which installs a rotating connection mechanism between a first side plate of a cover plate and a mounting seat, the first side plate being a side plate extending along the length direction of the cover plate, so that the rotating connection mechanism can be more compactly installed, the gap between the cover plate and the mounting seat is smaller, and the smoothness of the opening and closing of the cover plate is improved.

[0005] The present application provides a paper shredder, which comprises a cover plate and a mounting seat, the cover plate being installed on the mounting seat, a rotating connection mechanism being arranged between the cover plate and the mounting seat, the cover plate being rotatable open and closed on the mounting seat through the rotating connection mechanism, the rotating connection mechanism comprising a rotating shaft and a reset elastic member, the rotating shaft being rotatably installed on the mounting seat, the cover plate being provided with a first side plate extending along the length direction, the rotating shaft being provided with a connecting portion for connecting the first side plate, the reset elastic member being sleeved on the rotating shaft to reset the cover plate, the rotating shaft and the reset elastic member being located between the first side plate and the inner wall of the mounting seat. In the technical solution, the rotating connection mechanism is installed between the cover plate and the mounting seat, so that the cover plate can be flexibly opened and closed, which is convenient for user operation and provides better safety. The reset elastic member of the rotating connection mechanism is installed on the rotating shaft, which ensures that the cover plate can be automatically reset after being opened, improves the operation convenience of the user, and improves the user experience. The rotating shaft is rotatably installed on the mounting seat, the rotating shaft is connected with the cover plate through the connecting portion, the cover plate is rotatable relative to the mounting seat through the rotating shaft, the design of the connecting portion makes the connection of the rotating shaft and the cover plate simpler and more reliable, the cover plate is provided with the first side plate extending along the length direction, the rotating shaft and the reset elastic member are located between the first side plate and the inner wall of the mounting seat, which reduces the installation gap between the side plate of the cover plate and the upper cover, avoids the possibility of dust and other impurities entering the inside, protects the internal mechanical structure, the compact installation design reduces the resistance of the cover plate during the opening and closing process, makes the rotation of the cover plate more smooth, and the connection strength of the cover plate and the mounting seat is higher, the rotation of the cover plate on the mounting seat is more reliable, the rotating connection mechanism has fewer parts, and is simple and labor-saving to install.

[0006] As improvement, the rotating shaft is in a linear type; the connecting part is located at one side of the rotating shaft along the length direction, and the reset elastic member is sleeved at the other side of the rotating shaft along the length direction. In the technical scheme, the rotating shaft is located between the first side plate and the inner wall of the mounting base, the rotating shaft is installed along the length direction of the cover plate, the rotating shaft is in a linear type, which is beneficial to the positioning and fixing of the rotating shaft in the mounting base, and the linear rotating shaft has a small volume, and does not need additional space to accommodate the complex rotating shaft structure, so that the whole rotating connection mechanism is more compact, and the linear rotating shaft can be accurately installed along the length direction of the first side plate, so that the installation gap between the cover plate and the mounting base is minimized, the linear rotating shaft provides a stable rotation center, reduces the instability problem caused by the bending or bending of the rotating shaft, and improves the stability and durability of the whole cover plate rotating connection mechanism; the connecting part is located at one side of the rotating shaft, and the reset elastic member is located at the other side, which allows the first side plate of the cover plate to be directly connected with the rotating shaft, and the reset elastic member can provide a reset force for the cover plate to ensure that the cover plate can be reset smoothly and accurately after being opened.

[0007] As improvement, the rotating connection mechanism further comprises a pressing plate, the pressing plate is installed on the mounting base, the rotating shaft and the reset elastic member are installed on the pressing plate, and the mounting base and the pressing plate cooperate to clamp the rotating shaft and the reset elastic member. In the technical scheme, the pressing plate is added in the rotating connection mechanism, the pressing plate is installed on the mounting base, and is used for fixing the rotating shaft and the reset elastic member, so as to provide an additional fixing level for the rotating shaft and the reset elastic member, so that the positioning of the two key components is more accurate and stable, and the overall stability of the rotating connection mechanism is enhanced. The mounting base and the pressing plate cooperate to clamp the rotating shaft and the reset elastic member, which ensures the stability and reliability of the rotating connection mechanism during operation, and also provides a compact installation mode. Through the cooperation of the pressing plate and the mounting base, the assembly process of the rotating shaft and the reset elastic member can be simplified, and the assembly time is reduced. The use of the pressing plate reduces the direct stress of the rotating shaft and the reset elastic member, improves the durability and reliability of the whole rotating connection mechanism, and the close cooperation of the pressing plate and the mounting base reduces the noise and vibration of the rotating shaft during operation, and provides a more stable operation experience.

[0008] As improvement, the connecting part is designed as a protruding block structure, the pressing plate is provided with a receiving groove for accommodating the connecting part, and the connecting part is inserted into the receiving groove in the vertical direction to be connected with the first side plate, so that the connecting part can be accurately positioned on the pressing plate, and the stability and reliability of the connection are ensured.

[0009] As improvement, the mounting base is provided with a receiving cavity adapted to the rotating connecting mechanism, and the rotating shaft and the reset elastic member are positioned in the receiving cavity by the pressing plate, so that the rotating connecting mechanism can be hidden in the receiving cavity to avoid being exposed in the installation gap between the cover plate and the mounting base, and the rotating connecting mechanism is better protected.

[0010] As improvement, the first side plate is provided with an extension plate adapted to the connecting part, and the extension plate is inserted into the receiving groove in the horizontal direction to be connected with the connecting part, so that the connection between the first side plate and the rotating shaft is more stable and accurate, the overall structure is more compact, and the overall size of the rotating connecting mechanism is reduced.

[0011] As improvement, the extension plate is provided with positioning holes, the connecting part is provided with positioning protrusions matched with the positioning holes, and the positioning holes are connected with the positioning protrusions to positionally install the connecting part on the extension plate.

[0012] As improvement, the extension plate and the connecting part are installed with fasteners, and the extension plate and the connecting part are connected and locked through the fasteners.

[0013] As improvement, the pressing plate is provided with connecting holes at both ends, the mounting seat is provided with connecting columns matched with the connecting holes, and the connecting holes are connected with the connecting columns and connected and locked through fasteners.

[0014] As improvement, the reset elastic member is a torsion spring, the end of the rotating shaft is provided with a limiting groove matched with the reset elastic member, one end of the reset elastic member is installed in the limiting groove, and the other end of the reset elastic member abuts against the pressing plate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of a paper shredder.

[0016] Figure 2 It is an explosion structure schematic view of a paper shredder.

[0017] Figure 3 It is an exploded structural schematic view of the rotating connection mechanism in the application.

[0018] Figure 4 It is a sectional structural schematic view of a paper shredder in the application.

[0019] Figure 5 It is a sectional structural schematic view of a paper shredder in the application. Figure 4 It is a partial enlarged schematic view of A in the application.

[0020] Figure 6 It is a three-dimensional structural schematic view of the cover plate in the application.

[0021] Figure 7 It is a three-dimensional structural schematic view of the mounting seat in the application.

[0022] As shown in the figure: 1, cover plate; 11, first side plate; 111, extension plate; 112, positioning hole; 2, mounting seat; 21, accommodating cavity; 22, connecting column; 3, rotating connection mechanism; 31, rotating shaft; 311, connecting part; 312, positioning protrusion; 313, limiting groove; 32, reset elastic piece; 33, pressing plate; 331, accommodating groove; 332, connecting hole. DETAILED DESCRIPTION

[0023] In order to better understand the application, various aspects of the application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are only a description of exemplary embodiments of the application, and do not limit the scope of the application in any way. Throughout the specification, the same reference numbers refer to the same elements.

[0024] In the drawings, the thickness, size and shape of the objects have been slightly exaggerated for ease of illustration. The drawings are merely exemplary and not strictly drawn to scale.

[0025] It should also be understood that the terms "comprise", "include", "have", "contain", "comprising", "including", "have", "contain", when used in the specification, mean that the presence of the described features, whole, steps, operations, elements and / or components, but not exclude the presence or addition of one or more other features, whole, steps, operations, elements, components and / or combinations thereof. The terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific type and structure may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0026] Furthermore, it should be pointed out that the terms "mounting", "arrangement", "provided with", "connected", "connected to" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or an internal connection between two devices, elements or components; it can be directly arranged on another component, or there can be another intermediate component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application herein are for the purpose of describing specific embodiments only and are not intended to limit the present application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] As shown in Figures 1 to 7 The present application discloses a paper shredder, which comprises a cover plate 1 and a mounting seat 2, the cover plate 1 is mounted on the mounting seat 2, a rotating connection mechanism 3 is arranged between the cover plate 1 and the mounting seat 2, the cover plate 1 is rotatable relative to the mounting seat 2 through the rotating connection mechanism 3, the rotating connection mechanism 3 is arranged between the cover plate 1 and the mounting seat 2, so that the cover plate 1 can be flexibly opened and closed, which is convenient for users to operate and provides better safety; the rotating connection mechanism 3 comprises a rotating shaft 31 and a reset elastic member 32, the rotating shaft 31 is rotatably mounted on the mounting seat 2, the cover plate 1 is provided with a first side plate 11 extending in the length direction, the rotating shaft 31 is provided with a connecting portion 311 for connecting the first side plate 11, the reset elastic member 32 is sleeved on the rotating shaft 31 to reset the cover plate 1, the rotating shaft 31 and the reset elastic member 32 are both located between the first side plate 11 and the inner wall of the mounting seat 2, the reset elastic member 32 of the rotating connection mechanism 3 is mounted on the rotating shaft 31, which ensures that the cover plate 1 can be automatically reset after being opened, improves the operation convenience of users and improves the user experience, the rotating shaft 31 is rotatably mounted on the mounting seat 2, the cover plate 1 is connected to the mounting seat 2 through the connecting portion 311, the cover plate 1 is stressed through the rotating shaft 31 to rotate relative to the mounting seat 2, the design of the connecting portion 311 makes the connection between the rotating shaft 31 and the cover plate 1 more simple and reliable, the cover plate 1 is provided with the first side plate 11 extending in the length direction, the rotating shaft 31 and the reset elastic member 32 are both located between the first side plate 11 and the inner wall of the mounting seat 2, which reduces the installation gap between the side plate of the cover plate 1 and the upper cover, avoids the possibility of dust and other impurities entering the interior, protects the internal mechanical structure, the compact installation design reduces the resistance of the cover plate 1 during the opening and closing process, makes the rotation of the cover plate 1 more smooth, and the connection strength between the cover plate 1 and the mounting seat 2 is higher, the rotation of the cover plate 1 on the mounting seat 2 is more reliable, the rotating connection mechanism 3 has fewer parts, and is simple and labor-saving to install.

[0028] More specifically, as shown in Figures 2 to 5 The rotating shaft 31 is in a linear shape, and is installed in the length direction of the cover plate 1. The linear rotating shaft 31 is not only conducive to the positioning and fixing of the rotating shaft 31 in the mounting seat 2, but also has a smaller volume, and does not require additional space to accommodate the complex structure of the rotating shaft 31, thereby making the entire rotating connection mechanism 3 more compact. Due to the linear shape of the linear rotating shaft 31, it can be accurately installed along the length direction of the first side plate 11, thereby minimizing the installation gap between the cover plate 1 and the mounting seat 2. The linear rotating shaft 31 provides a stable rotation center, reduces the structural instability problem that may be caused by the bending or bending of the rotating shaft 31, thereby improving the stability and durability of the entire cover plate 1 rotating connection mechanism 3. The connecting part 311 is located on one side of the rotating shaft 31 in the length direction, and the reset elastic member 32 is sleeved on the other side of the rotating shaft 31 in the length direction. This distribution allows the first side plate 11 of the cover plate 1 to be directly connected to the rotating shaft 31, and at the same time the reset elastic member 32 can provide a reset force for the cover plate 1 to ensure that the cover plate 1 can be reset smoothly and accurately after being opened.

[0029] More specifically, as shown in Figures 2 to 5 The rotating connection mechanism 3 further comprises a pressing plate 33, which is installed on the mounting seat 2, and the rotating shaft 31 and the reset elastic member 32 are both installed on the pressing plate 33. The mounting seat 2 cooperates with the pressing plate 33 to clamp the rotating shaft 31 and the reset elastic member 32. The addition of the pressing plate 33 in the rotating connection mechanism 3 provides an additional fixing level for the rotating shaft 31 and the reset elastic member 32, making the positioning of these two key components more accurate and stable, and enhancing the overall stability of the rotating connection mechanism 3. The mounting seat 2 cooperates with the pressing plate 33 to clamp the rotating shaft 31 and the reset elastic member 32, which ensures the stability and reliability of the rotating connection mechanism 3 during operation, and also provides a compact installation method. Through the cooperation of the pressing plate 33 and the mounting seat 2, the assembly process of the rotating shaft 31 and the reset elastic member 32 can be simplified, and the assembly time can be reduced. The use of the pressing plate 33 reduces the direct stress on the rotating shaft 31 and the reset elastic member 32, thereby improving the durability and reliability of the entire rotating connection mechanism 3. The close cooperation of the pressing plate 33 and the mounting seat 2 reduces the noise and vibration of the rotating shaft 31 during operation, providing a smoother operation experience.

[0030] More specifically, as shown in Figure 3As shown, the connecting part 311 is in a protruding block structure, the pressing plate 33 is provided with a receiving groove 331 for accommodating the connecting part 311, the connecting part 311 is inserted into the receiving groove 331 in the vertical direction to be connected with the first side plate 11, the connecting part 311 is designed in a protruding block structure, which can provide a firm connecting point and is easy to connect with the first side plate 11, the receiving groove 331 is specially provided on the pressing plate 33 for accommodating the connecting part 311, so that the connecting part 311 can be accurately positioned on the pressing plate 33, ensuring the stability and reliability of the connection, the use of the connecting part 311 in a protruding block structure and the receiving groove 331 can provide a stable connection, the connecting part 311 is inserted into the receiving groove 331 in the vertical direction, which is easier to align and operate than horizontal insertion, and also reduces the space requirement during installation.

[0031] More specifically, as shown in Figures 2 to 5 , Figure 7 The mounting seat 2 is provided with a receiving cavity 21 adapted to the rotating connection mechanism 3, the mounting seat 2 limits the rotating shaft 31 and the reset elastic member 32 in the receiving cavity 21 through the pressing plate 33, the receiving cavity 21 is provided in the mounting seat 2, the shape and size of the receiving cavity 21 are adapted to the rotating connection mechanism 3, ensuring that the rotating shaft 31 and the reset elastic member 32 can be accurately placed inside, the rotating connection mechanism 3 can be hidden in the receiving cavity 21 to avoid being exposed in the installation gap between the cover plate 1 and the mounting seat 2, better protecting the rotating connection mechanism 3, the rotating shaft 31 and the reset elastic member 32 can be simultaneously limited in the receiving cavity 21 through the use of the pressing plate 33, the pressing plate 33 not only has a fixing function but also provides a limiting function, ensuring the correct position of the rotating shaft 31 and the reset elastic member 32 in the receiving cavity 21, preventing displacement during the opening and closing process of the cover plate 1.

[0032] More specifically, as shown in Figures 3 to 6 The first side plate 11 is provided with an extension plate 111 adapted to the connecting part 311, the extension plate 111 is inserted into the receiving groove 331 in the horizontal direction to be connected with the connecting part 311, the first side plate 11 is provided with the extension plate 111 adapted to the connecting part 311, making the connection of the first side plate 11 and the rotating shaft 31 more stable and accurate, the extension plate 111 is inserted into the receiving groove 331 in the horizontal direction to be connected with the connecting part 311, making the overall structure more compact, the extension plate 111 inserts the connecting part 311 in the receiving groove 331, the extension plate 111 and the connecting part 311 overlap in the vertical direction, saving installation space and being beneficial to reducing the overall size of the rotating connection mechanism 3.

[0033] More specifically, as shown in Figures 3 to 6As shown, the extension plate 111 is provided with a positioning hole 112, and the connecting part 311 is provided with a positioning protrusion 312 matched with the positioning hole 112. The positioning hole 112 is connected with the positioning protrusion 312 to position and install the connecting part 311 on the extension plate 111. By providing the positioning hole 112 on the extension plate 111 and the positioning protrusion 312 on the connecting part 311, the correct installation of the connecting part 311 on the extension plate 111 is ensured by precise mechanical cooperation. The design of the positioning hole 112 and the positioning protrusion 312 provides an intuitive assembly guide, reduces the adjustment and alignment work during assembly, and realizes the precise positioning and installation of the connecting part 311 on the extension plate 111. The cooperation of the positioning protrusion 312 and the positioning hole 112 serves as an anti-dislocation design to ensure the position of the connecting part 311 on the extension plate 111 fixed, prevent displacement caused by improper installation or external force, and improve the accuracy and reliability of assembly.

[0034] More specifically, as shown in the drawings, Figures 3 to 6 As shown, the extension plate 111 and the connecting part 311 are installed with fasteners, and the extension plate 111 and the connecting part 311 are connected and locked by the fasteners. The fasteners ensure the firm connection between the two components. The fasteners include but are not limited to bolts, nuts, buckles, etc. The use of fasteners can significantly enhance the connection firmness between the extension plate 111 and the connecting part 311, reduce the connection loosening caused by vibration or impact, and improve the connection stability and safety.

[0035] More specifically, the two ends of the pressing plate 33 are provided with connecting holes 332, and the mounting seat 2 is provided with connecting columns 22 matched with the connecting holes 332. The connecting holes 332 are engaged with the connecting columns 22 and connected and locked by fasteners. The connecting holes 332 and the connecting columns 22 are matched and connected and locked by fasteners to ensure the position of the pressing plate 33 on the mounting seat 2 fixed and improve the connection stability between the pressing plate 33 and the mounting seat 2.

[0036] More specifically, as shown in the drawings, Figures 3 to 6As shown, the reset elastic member 32 is a torsion spring, using a torsion spring as the reset elastic member 32, the torsion spring can provide stable and reliable reset force, ensuring that the cover plate 1 can automatically and accurately return to the initial position after opening; The end of the rotating shaft 31 is provided with a limiting groove 313 matched with the reset elastic member 32, one end of the reset elastic member 32 is installed in the limiting groove 313, the other end of the reset elastic member 32 abuts against the pressing plate 33, by setting the limiting groove 313 on the end of the rotating shaft 31, the torsion spring is sleeved on the rotating shaft 31, one end of the torsion spring is fixed through the limiting groove 313, the other end abuts against the pressing plate 33, ensuring that the torsion spring provides reset force while its position is effectively limited, preventing the torsion spring from shifting and disengaging from the rotating shaft 31, making the installation of the torsion spring more accurate and labor-saving.

[0037] The present application is not limited to the above best mode of implementation, and anyone can derive other various forms of products under the inspiration of the present application, but regardless of any changes in shape or structure, any technical solution with the same or similar to the present application falls within the scope of the present application.

Claims

1. A paper shredder, comprising a cover plate (1) and a mounting base (2), wherein the cover plate (1) is mounted on the mounting base (2), and a rotating connection mechanism (3) is provided between the cover plate (1) and the mounting base (2), wherein the cover plate (1) is rotatably opened and closed by the mounting base (2) via the rotating connection mechanism (3), characterized in that, The rotating connecting mechanism (3) comprises a rotating shaft (31) and a reset elastic member (32), the rotating shaft (31) is rotatably installed on the mounting seat (2), the cover plate (1) is provided with a first side plate (11) extending along the length direction, the rotating shaft (31) is provided with a connecting part (311) for connecting the first side plate (11), the reset elastic member (32) is sleeved on the rotating shaft (31) to reset the cover plate (1), and the rotating shaft (31) and the reset elastic member (32) are located between the first side plate (11) and the inner wall of the mounting seat (2).

2. A paper shredder according to claim 1, wherein The rotating shaft (31) is in the form of a character; the connecting part (311) is located on one side of the rotating shaft (31) along the length direction, and the reset elastic member (32) is sleeved on the other side of the rotating shaft (31) along the length direction.

3. A paper shredder according to claim 1 or 2, wherein The rotating connecting mechanism (3) further comprises a pressing plate (33), the pressing plate (33) is installed on the mounting seat (2), the rotating shaft (31) and the reset elastic member (32) are installed on the pressing plate (33), and the mounting seat (2) and the pressing plate (33) cooperate to clamp the rotating shaft (31) and the reset elastic member (32).

4. A paper shredder as claimed in claim 3, wherein The connecting part (311) is in the form of a protruding block, the pressing plate (33) is provided with a receiving groove (331) for accommodating the connecting part (311), and the connecting part (311) is inserted into the receiving groove (331) in the vertical direction to be connected with the first side plate (11).

5. A paper shredder as claimed in claim 3, wherein, The mounting seat (2) is provided with a receiving cavity (21) matched with the rotating connecting mechanism (3), and the mounting seat (2) limits the rotating shaft (31) and the reset elastic member (32) in the receiving cavity (21) through the pressing plate (33).

6. A paper shredder as claimed in claim 4, wherein The first side plate (11) is provided with an extension plate (111) matched with the connecting part (311), and the extension plate (111) is inserted into the receiving groove (331) in the horizontal direction to be connected with the connecting part (311).

7. A paper shredder as claimed in claim 6, wherein The extension plate (111) is provided with a positioning hole (112), the connecting part (311) is provided with a positioning protrusion (312) matched with the positioning hole (112), and the positioning hole (112) is connected with the positioning protrusion (312) to position and install the connecting part (311) on the extension plate (111).

8. A paper shredder as defined in claim 6, wherein A fastener is installed between the extension plate (111) and the connecting part (311), and the extension plate (111) and the connecting part (311) are connected and locked through the fastener.

9. A paper shredder as defined in claim 3, wherein Both ends of the pressing plate (33) are provided with connecting holes (332), the mounting seat (2) is provided with connecting columns (22) opposite to the connecting holes (332), the connecting holes (332) are engaged with the connecting columns (22) and are connected and locked through fasteners.

10. A paper shredder as defined in claim 3, wherein The reset elastic member (32) is a torsion spring; the end of the rotating shaft (31) is provided with a limiting groove (313) matched with the reset elastic member (32), one end of the reset elastic member (32) is installed in the limiting groove (313), and the other end of the reset elastic member (32) abuts against the pressing plate (33).

Images