Electric pencil sharpener capable of adjusting pencil point cutting thickness

Abstract

The utility model provides an electric pencil sharpener capable of adjusting the pencil point cutting thickness. The electric pencil sharpener comprises a shell, a cutting assembly and a driving assembly. The cutting assembly is connected to the inner side of the upper portion of the shell, the driving assembly is connected to the inner side of the lower portion of the shell, and the cutting assembly is in transmission connection with the driving assembly. The electric pencil sharpener further comprises a limiting block, an ejector rod, a rotating piece and a shifting assembly. The limiting block is connected to the cutting assembly in a sliding mode and used for abutting against a pencil point of a pencil, the ejector rod coaxially penetrates through the output end of the driving assembly in an axial moving mode, the rotating piece is horizontally and rotationally connected to the inner side of the shell, the top face of the inner end of the rotating piece forms an inclined face, and the upper end of the ejector rod abuts against the lower end face of the limiting block. The lower end of the ejector rod abuts against the inclined face, the shifting assembly can be horizontally and slidably connected to the side wall of the shell, and the outer end of the rotating piece is in transmission connection with the shifting assembly. According to the pencil sharpener, the pencil point of a pencil can be sharpened to the required thickness state according to the requirements of a user.

Description

Technical Field

[0001] This utility model relates to the field of electric pencil sharpener technology, and more specifically, to an electric pencil sharpener with adjustable pencil tip cutting thickness. Background Technology

[0002] An electric pencil sharpener is a device used to sharpen pencils. Currently, electric pencil sharpeners on the market mainly consist of a housing, a cutting component, and a drive component. Both the cutting component and the drive component are connected inside the housing, and the cutting component is connected to the drive component via a transmission. In addition, there is a button on the side wall of the housing to control the power supply to the drive component. When the pencil is inserted into the cutting component through the hole on the housing, and the button is pressed, the drive component can drive the cutting component to cut the pencil. After the pencil is sharpened, the button is released, and the drive component can stop driving the cutting component. Then, the sharpened pencil can be pulled out of the cutting component. However, in the existing structure of electric pencil sharpeners, the electric pencil sharpener can only sharpen the pencil, but cannot cut the pencil tip to the desired thickness according to the user's needs. That is, the electric pencil sharpener has the disadvantages of limited functionality and poor usage flexibility. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an electric pencil sharpener with adjustable pencil tip cutting thickness, which can cut the pencil tip to the required thickness according to the user's needs, thus having the advantages of multi-functionality and good flexibility of use.

[0004] This utility model provides an electric pencil sharpener with adjustable tip cutting thickness, including a housing, a cutting assembly, and a driving assembly. The cutting assembly is connected to the inner side of the upper part of the housing, and the driving assembly is connected to the inner side of the lower part of the housing, with the cutting assembly and the driving assembly being drive-connected. The electric pencil sharpener also includes a limiting block, a push rod, a rotating component, and a toggle assembly. The limiting block is slidably connected to the cutting assembly and is used to abut against the pencil tip. The push rod is coaxially and axially movable through the output end of the driving assembly. The rotating component is horizontally rotatably connected to the inner side of the housing, and the top surface of the inner end of the rotating component forms an inclined surface. The upper end of the push rod abuts against the lower end surface of the limiting block, and the lower end of the push rod abuts against the inclined surface. The toggle assembly is horizontally slidably connected to the side wall of the housing, and the outer end of the rotating component is drive-connected to the toggle assembly. When the toggle assembly is toggled to drive the rotating component to rotate, the lower end of the push rod slides along the inclined surface and controls the vertical position of the limiting block to limit the stroke of the pencil that can be inserted into the cutting assembly.

[0005] By adopting the above structure, when the actuating component is actuated, it drives the rotating component to rotate. When the rotating component rotates to one side so that the lower end of the push rod slides down the inclined plane, the limiting block and the push rod can move downward under the pushing action of the pencil tip during the insertion of the pencil tip into the cutting component. At this time, the stroke of the pencil tip into the cutting component can be increased, thereby making the pencil tip cut finer. When the rotating component rotates to the other side so that the lower end of the push rod slides up the inclined plane, the limiting block and the push rod can move upward. At this time, the stroke of the pencil tip into the cutting component can be reduced, thereby making the pencil tip cut thicker. That is, this invention can cut the pencil tip to the required thickness according to the user's needs, thus having the advantages of multi-functionality and good flexibility of use.

[0006] In one possible implementation, the cutting assembly includes a tool holder and a hob; both the upper and lower ends of the tool holder are rotatably connected to the housing, and the lower end of the tool holder is engaged with and driven by the output end of the drive assembly; the hob is rotatably connected to one side of the tool holder, and the outer wall of the upper end of the hob is provided with meshing teeth circumferentially, and the inner side wall of the housing is provided with a toothed ring portion circumferentially, with the meshing teeth meshing with the toothed ring portion; a limiting block is slidably connected to the tool holder; by using this cutting assembly, when the drive assembly drives the tool holder to rotate relative to the housing, since the hob is rotatably connected to one side of the tool holder, and under the action of the meshing teeth and the toothed ring portion, the hob can rotate, thereby enabling the hob to cut the pencil inserted in the cutting assembly.

[0007] In one possible implementation, a vertical groove is provided on the tool holder, and a limiting block is slidably connected in the groove. A guide rod is also provided in the groove, with its axis parallel to the axis of the hob. Both ends of the guide rod are fitted tightly into the tool holder. The limiting block is sleeved on the outside of the guide rod and can slide relative to the guide rod along its axial direction. With this structure, the limiting block can be reliably slidably connected in the groove under the action of the groove. And under the action of the guide rod, since its axis is parallel to the axis of the hob, the pencil tip can always abut against the limiting block when the position of the limiting block changes as it slides relative to the tool holder along the guide rod.

[0008] In one possible implementation, the drive assembly includes a motor, a drive gear, a reduction gear set, and an output gear. The motor is fixed inside the housing, the drive gear is coaxially fixed to the motor's drive shaft, the reduction gear set and the output gear are rotatably connected to the housing, and the output gear is driven by the drive gear set. A connecting post is coaxially mounted on the upper end of the output gear, forming the output end of the drive assembly. The connecting post engages with the lower end of the tool holder and provides circumferential limiting. A push rod is coaxially and axially movable through the output gear. With this structure, when the motor drives the drive gear to rotate, the reduction gear set can drive the output gear to rotate, and because the upper end of the output gear is coaxially mounted... The device has a connector that forms the output end of the drive assembly. The connector engages with the lower end of the tool holder and provides circumferential limiting, thereby enabling the output gear to drive the tool holder to rotate. This ensures that the drive assembly reliably drives the tool holder to rotate. Additionally, the housing contains a battery and a control circuit board. A power switch and a charging interface are fixed to the side wall of the housing. The motor, battery, power switch, and charging interface are all electrically connected to the control circuit board. The battery supplies power to the control circuit board. When the power switch is turned on, the control circuit board drives the motor to rotate; when the power switch is turned off, the control circuit board stops driving the motor. When the charging interface is connected to a charging cable, the charging cable charges the battery.

[0009] In one possible implementation, a shaft hole is provided in the middle of the rotating component, and a support shaft is vertically arranged inside the housing. The shaft hole is fitted onto the outside of the support shaft to allow the rotating component to rotate in conjunction with the support shaft. Several support ribs are arranged circumferentially on the outer wall of the support shaft, and a screw is connected to the lower end of the support shaft. The upper and lower end faces of the rotating component abut against the support ribs and the screw, respectively, to achieve axial limiting of the rotating component and the support shaft. With this structure, the rotating component can be reliably rotated together with the housing under the cooperation of the shaft hole and the support shaft. Furthermore, due to the arrangement of the support ribs and the screw, axial limiting of the rotating component can be achieved, thus ensuring the reliability of the rotational connection between the rotating component and the housing.

[0010] In one possible implementation, the actuating assembly includes a transmission member and a lever; the transmission member and the lever are respectively disposed on the inner and outer sides of the housing, the lever is connected to the outer end of the transmission member and is horizontally slidably connected to the housing, and the inner end of the transmission member is kinetically connected to the outer end of the rotating member; when the lever is horizontally actuated, the transmission member drives the rotating member to rotate; by adopting this actuating assembly, when a finger actuates the lever to move the lever horizontally, the lever can drive the transmission member to move horizontally relative to the housing synchronously, and when the transmission member moves horizontally, the actuating assembly can reliably drive the rotating member to rotate.

[0011] In one possible implementation, a sliding hole is horizontally provided on the side wall of the housing, and a pair of hooks are provided on the inner wall of the lever. The pair of hooks pass through the sliding hole and are horizontally slidably connected to the sliding hole. A locking hole is provided on the outer end of the transmission component. The pair of hooks cooperate with the locking hole to lock the lever and the transmission component. With this structure, under the sliding action of the pair of hooks and the sliding hole, the lever assembly can be reliably horizontally slidably connected to the housing, and because the pair of hooks cooperate with the locking hole, the lever can be reliably fixed to the outer end of the transmission component.

[0012] In one possible implementation, an opening slot is provided on the inner end of the transmission component, and a column is vertically provided on the outer end of the rotating component. The column is inserted into the opening slot and fits against the inner wall of the opening slot. The column and the opening slot are movably connected. With this structure, the inner end of the transmission component and the outer end of the rotating component can be reliably movably connected together and a transmission connection can be achieved through the cooperation of the column and the opening slot. That is, when the transmission component moves horizontally relative to the housing, it can drive the rotating component to rotate.

[0013] In one possible implementation, a limiting spring is provided at the top of the transmission component, and the interior of the housing is provided with several limiting grooves spaced apart along the moving direction of the transmission component. When the toggle block drives the transmission component to move, the free end of the limiting spring is used to switch back and forth among the several limiting grooves and finally engage with one of the limiting grooves to lock the actuating component. With this structure, when the toggle block is actuated to make the toggle block drive the transmission component to reciprocate relative to the housing, the free end of the limiting spring can switch back and forth among the several limiting grooves, and when the toggle block is stopped, the free end of the limiting spring can finally engage with one of the limiting grooves to lock the actuating component. This can prevent the actuating component from moving freely relative to the housing, that is, it can prevent the rotating component from rotating freely, which means that the rotating component is synchronously locked to prevent the rotating component from rotating without human intervention. After the rotating component is locked, the downward travel of the push rod and the limiting block is also locked, thereby limiting the travel of the pencil tip into the cutting component.

[0014] In one possible implementation, the outer end face of the transmission component is formed with an arcuate surface for engaging with the inner wall of the housing. By adopting this structure, the outer end of the transmission component can be reliably engaged with the inner wall of the housing, that is, when the lever is actuated to drive the transmission component to move horizontally relative to the housing, the stability and reliability of the horizontal movement of the transmission component can be improved. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of an electric pencil sharpener;

[0016] Figure 2A three-dimensional sectional view of an electric pencil sharpener;

[0017] Figure 3 A schematic diagram of the first three-dimensional structure of an electric pencil sharpener after part of the housing has been removed;

[0018] Figure 4 A second 3D structural diagram of an electric pencil sharpener after part of the housing has been removed;

[0019] Figure 5 This is a three-dimensional structural diagram of the toggle assembly and the rotating component after they are connected.

[0020] Figure 6 A three-dimensional structural diagram of an electric pencil sharpener after removing the actuating mechanism, rotating parts, and part of the housing. Detailed Implementation

[0021] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0022] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0023] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] See Figure 1-6As shown in the illustration, this application discloses an electric pencil sharpener with adjustable tip cutting thickness, comprising a housing 1, a cutting assembly 2, and a driving assembly 3; the cutting assembly 2 is connected to the inner side of the upper part of the housing 1, and the driving assembly 3 is connected to the inner side of the lower part of the housing 1, with the cutting assembly 2 and the driving assembly 3 being drively connected; the electric pencil sharpener also includes a limiting block 4, a push rod 5, a rotating component 6, and a toggle assembly 7; the limiting block 4 is slidably connected to the cutting assembly 2 and is used to abut against the tip of the pencil 8, and the push rod 5 is coaxially and axially movable through the output end of the driving assembly 3. The rotating component 6 is horizontally rotatably connected to the inner side of the housing 1. The top surface of the inner end of the rotating component 6 forms an inclined surface 61. The upper end of the push rod 5 abuts against the lower end surface of the limiting block 4, and the lower end of the push rod 5 abuts against the inclined surface 61. The actuating assembly 7 is horizontally slidably connected to the side wall of the housing 1. The outer end of the rotating component 6 is connected to the actuating assembly 7 in a transmission manner. When the actuating assembly 7 is actuated to drive the rotating component 6 to rotate, the lower end of the push rod 5 slides along the inclined surface 61 and controls the vertical position of the limiting block 4 to limit the stroke of the pencil 8 that can be inserted into the cutting assembly 2.

[0026] See you again Figure 2-4 As shown, the cutting assembly 2 includes a tool holder 21 and a hob 22. Both the upper and lower ends of the tool holder 21 are rotatably connected to the housing 1. The lower end of the tool holder 21 is engaged with and connected to the output end of the drive assembly 3. The hob 22 is rotatably connected to one side of the tool holder 21. The outer wall of the upper end of the hob 22 is provided with meshing teeth in the circumferential direction, and the inner side wall of the housing 1 is provided with a toothed ring portion 11 in the circumferential direction. The meshing teeth mesh with the toothed ring portion 11. The limiting block 4 is slidably connected to the tool holder 21. By using this cutting assembly, when the drive assembly drives the tool holder to rotate relative to the housing, the hob is rotatably connected to one side of the tool holder, and under the action of the meshing teeth and the toothed ring portion, the hob can rotate, thereby enabling the hob to cut the pencil inserted in the cutting assembly.

[0027] See you again Figure 2 As shown, a vertical groove 211 is provided on the tool holder 21, and a limiting block 4 is slidably connected in the groove 211. A guide rod 23 is also provided in the groove 211. The axis of the guide rod 23 is parallel to the axis of the hob 22. Both ends of the guide rod 23 are fitted and tightened with the tool holder 21. The limiting block 4 is sleeved on the outside of the guide rod 23 and can slide relative to the guide rod 23 along the axial direction of the guide rod 23. With this structure, the limiting block can be reliably slidably connected in the groove under the action of the groove. Under the action of the guide rod, since the axis of the guide rod is parallel to the axis of the hob, the pencil tip can always be in contact with the limiting block when the position of the limiting block changes during the sliding of the limiting block relative to the tool holder along the guide rod.

[0028] See you again Figure 2-3As shown, the drive assembly 3 includes a motor 31, a drive gear 32, a reduction gear set 33, and an output gear 34. The motor 31 is fixed inside the housing 1. The drive gear 32 is coaxially fixed on the drive shaft of the motor 31. The reduction gear set 33 and the output gear 34 are both rotatably connected to the housing 1. The output gear 34 is connected to the drive gear 32 via the reduction gear set 33. A plug-in post 341 is coaxially provided at the upper end of the output gear 34, forming the output end of the drive assembly 3. The plug-in post 341 is engaged with the lower end of the tool holder 21 and is circumferentially limited. The push rod 5 is coaxially and axially movable through the output gear 34. With this structure, when the motor drives the drive gear to rotate, the output gear can be driven by the reduction gear set. The output gear rotates, and because a plug-in post is coaxially provided at the upper end of the output gear, forming the output end of the drive assembly 3, the plug-in post engages with the lower end of the tool holder and is circumferentially limited, thereby enabling the output gear to drive the tool holder to rotate, that is, enabling the drive assembly to reliably drive the tool holder to rotate; in addition, a battery and a control circuit board are provided inside the housing, and a power switch and a charging interface are fixed on the side wall of the housing. The motor, battery, power switch and charging interface are all electrically connected to the control circuit board. The battery is used to supply power to the control circuit board. When the power switch is turned on, the control circuit board can drive the motor to rotate. When the power switch is turned off, the control circuit board will stop driving the motor. When the charging interface is connected to the charging cable, the charging cable can charge the battery.

[0029] See you again Figure 4-6 As shown, a shaft hole 62 is provided in the middle of the rotating component 6, and a support shaft 12 is vertically arranged inside the housing 1. The shaft hole 62 is sleeved on the outside of the support shaft 12 so that the rotating component 6 and the support shaft 12 can rotate together. Several support ribs 121 are arranged circumferentially on the outer wall of the support shaft 12. A screw is connected to the lower end of the support shaft 12. The upper and lower end faces of the rotating component 6 abut against the support ribs 121 and the screw respectively to achieve axial limiting of the rotating component 6 and the support shaft 12. With this structure, the rotating component can be reliably rotated together with the housing under the cooperation of the shaft hole and the support shaft. And due to the setting of the support ribs and the screw, the axial limiting of the rotating component can be achieved, that is, the reliability of the rotational connection between the rotating component and the housing can be ensured.

[0030] See you again Figure 2-5As shown, the actuating assembly 7 includes a transmission component 71 and a lever 72. The transmission component 71 and the lever 72 are respectively disposed on the inner and outer sides of the housing 1. The lever 72 is connected to the outer end of the transmission component 71 and is horizontally slidably connected to the housing 1. The inner end of the transmission component 71 is kinetically connected to the outer end of the rotating component 6. When the lever 72 is horizontally actuated, the transmission component 71 drives the rotating component 6 to rotate. By adopting this actuating assembly, when a finger actuates the lever to make the lever move horizontally, the lever can drive the transmission component to move horizontally relative to the housing synchronously. When the transmission component moves horizontally, the actuating assembly can reliably drive the rotating component to rotate.

[0031] See you again Figure 4-6 As shown, a sliding hole 13 is horizontally provided on the side wall of the housing 1, and a pair of hooks 721 are provided on the inner wall of the toggle block 72. The pair of hooks 721 pass through the sliding hole 13 and are horizontally slidably connected to the sliding hole 13. A locking hole 711 is provided on the outer end of the transmission member 71. The pair of hooks 721 cooperate with the locking hole 711 to lock the toggle block 72 and the transmission member 71. With this structure, under the sliding action of the pair of hooks and the sliding hole, the toggle assembly can be reliably horizontally slidably connected to the housing, and because the pair of hooks and the locking hole cooperate with each other, the toggle block can be reliably fixed to the outer end of the transmission member.

[0032] See you again Figure 5 As shown, the inner end of the transmission component 71 is provided with an opening groove 712, and the outer end of the rotating component 6 is provided with a vertical column 63. The column 63 is inserted into the opening groove 712 and fits against the inner wall of the opening groove 712. The column 63 is movably connected to the opening groove 712. With this structure, under the cooperation of the column and the opening groove, the inner end of the transmission component and the outer end of the rotating component can be reliably movably connected together and a transmission connection can be realized. That is, when the transmission component moves horizontally relative to the housing, it can drive the rotating component to rotate.

[0033] See you again Figure 4-6As shown, a limiting spring 713 is provided on the top of the transmission component 71, and a plurality of limiting grooves 14 are provided inside the housing 1, which are spaced apart along the moving direction of the transmission component 71. When the toggle block 72 drives the transmission component 71 to move, the free end of the limiting spring 713 is used to switch back and forth in the plurality of limiting grooves 14 and finally engage with one of the limiting grooves 14 to lock the toggle assembly 7. With this structure, when the toggle block is actuated to drive the transmission component to reciprocate relative to the housing, the free end of the limiting spring 713 can switch back and forth in the plurality of limiting grooves 14 and finally engage with one of the limiting grooves 14 to lock the toggle assembly 7. The mechanism switches back and forth within the limiting slots, and when the toggle block stops moving, the free end of the limiting spring can eventually engage with one of the limiting slots to lock the toggle component. This prevents the toggle component from moving freely relative to the housing, thus preventing the rotating part from rotating freely. This achieves synchronous locking of the rotating part to prevent it from rotating without human intervention. After the rotating part is locked, the downward movement of the push rod and the limiting block is also locked, thereby limiting the stroke of the pencil tip into the cutting component.

[0034] See you again Figure 4-5 As shown, the outer end face of the transmission member 71 forms an arc surface 714 for fitting against the inner wall of the housing 1. By adopting this structure, the outer end of the transmission member can be reliably fitted against the inner wall of the housing. That is, when the paddle is moved to make the paddle drive the transmission member to move horizontally relative to the housing, the stability and reliability of the horizontal movement of the transmission member can be improved.

[0035] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electric pencil sharpener with adjustable tip cutting thickness, comprising a housing (1), a cutting assembly (2), and a driving assembly (3); the cutting assembly (2) is connected to the inner side of the upper part of the housing (1), and the driving assembly (3) is connected to the inner side of the lower part of the housing (1), wherein the cutting assembly (2) and the driving assembly (3) are connected in a transmission connection; characterized in that: The electric pencil sharpener also includes a limiting block (4), a push rod (5), a rotating component (6), and a toggle assembly (7); the limiting block (4) is slidably connected to the cutting assembly (2) and used to abut against the tip of the pencil (8); the push rod (5) is coaxially and axially movable through the output end of the drive assembly (3); the rotating component (6) is horizontally rotatably connected to the inside of the housing (1); the top surface of the inner end of the rotating component (6) forms an inclined surface (61); the upper end of the push rod (5) is connected to the limiting block (4); the upper end of the push rod (5) is connected to the limiting block (6); the upper end of the push rod (6) is connected to the upper end of the pencil sharpener (7); the lower end of the push rod (6) is connected to the upper end of the pencil sharpener (7); the upper ... The lower end face of the top rod (5) abuts against the inclined surface (61), the lower end of the top rod (5) abuts against the inclined surface (61), the actuating component (7) is horizontally slidably connected to the side wall of the housing (1), and the outer end of the rotating component (6) is connected to the actuating component (7) in a transmission manner; when the actuating component (7) is actuated to drive the rotating component (6) to rotate, the lower end of the top rod (5) slides along the inclined surface (61) and controls the vertical position of the limiting block (4) to limit the stroke of the pencil (8) that can be inserted into the cutting component (2).

2. The electric pencil sharpener with adjustable tip cutting thickness according to claim 1, characterized in that: The cutting assembly (2) includes a tool holder (21) and a hob (22); both the upper and lower ends of the tool holder (21) are rotatably connected to the housing (1), the lower end of the tool holder (21) is engaged with the output end of the drive assembly (3) and connected for transmission, the hob (22) is rotatably connected to one side of the tool holder (21), the outer wall of the upper end of the hob (22) is provided with meshing teeth in the circumferential direction, the inner side wall of the housing (1) is provided with a toothed ring (11) in the circumferential direction, the meshing teeth mesh with the toothed ring (11); the limiting block (4) is slidably connected to the tool holder (21).

3. The electric pencil sharpener with adjustable tip cutting thickness according to claim 2, characterized in that: The tool holder (21) is vertically provided with a slide groove (211), and the limiting block (4) is slidably connected in the slide groove (211); a guide rod (23) is also provided in the slide groove (211), the axis of the guide rod (23) is parallel to the axis of the hob (22), both ends of the guide rod (23) are fitted and inserted into the tool holder (21), and the limiting block (4) is sleeved on the outside of the guide rod (23) and can slide relative to the guide rod (23) along the axial direction of the guide rod (23).

4. The electric pencil sharpener with adjustable tip cutting thickness according to claim 2 or 3, characterized in that: The drive assembly (3) includes a motor (31), a drive gear (32), a reduction gear set (33), and an output gear (34). The motor (31) is fixed inside the housing (1). The drive gear (32) is coaxially fixed on the drive shaft of the motor (31). The reduction gear set (33) and the output gear (34) are rotatably connected to the housing (1). The output gear (34) is connected to the drive gear (32) via the reduction gear set (33). The upper end of the output gear (34) is coaxially provided with a plug post (341). The plug post (341) forms the output end of the drive assembly (3). The plug post (341) is engaged with the lower end of the tool holder (21) and circumferentially limited. The push rod (5) is coaxially and axially movable through the output gear (34).

5. The electric pencil sharpener with adjustable tip cutting thickness according to claim 1, characterized in that: The rotating part (6) has a shaft hole (62) in the middle. The housing (1) has a support shaft (12) vertically arranged inside. The shaft hole (62) is sleeved on the outside of the support shaft (12) so that the rotating part (6) and the support shaft (12) can rotate together. The outer wall of the support shaft (12) has a plurality of support ribs (121) arranged circumferentially. The lower end of the support shaft (12) is connected to a screw. The upper end face and the lower end face of the rotating part (6) abut against the support ribs (121) and the screw respectively to achieve axial positioning of the rotating part (6) and the support shaft (12).

6. The electric pencil sharpener with adjustable tip cutting thickness according to claim 1 or 5, characterized in that: The actuating assembly (7) includes a transmission component (71) and a lever (72); the transmission component (71) and the lever (72) are respectively disposed on the inner and outer sides of the housing (1), the lever (72) is connected to the outer end of the transmission component (71) and is horizontally slidably connected to the housing (1), and the inner end of the transmission component (71) is connected to the outer end of the rotating component (6) in a transmission connection; when the lever (72) is horizontally actuated, the transmission component (71) is used to drive the rotating component (6) to rotate.

7. The electric pencil sharpener with adjustable tip cutting thickness according to claim 6, characterized in that: A sliding hole (13) is horizontally provided on the side wall of the housing (1), and a pair of hooks (721) are provided on the inner wall of the lever (72). The pair of hooks (721) are inserted into the sliding hole (13) and are horizontally slidably connected to the sliding hole (13). A locking hole (711) is provided on the outer end of the transmission member (71). The pair of hooks (721) are engaged with the locking hole (711) to lock the lever (72) and the transmission member (71).

8. The electric pencil sharpener with adjustable tip cutting thickness according to claim 6, characterized in that: An opening groove (712) is provided on the inner end of the transmission component (71), and a column (63) is vertically provided on the outer end of the rotating component (6). The column (63) is inserted into the opening groove (712) and fits against the inner wall of the opening groove (712). The column (63) is movably connected to the opening groove (712).

9. The electric pencil sharpener with adjustable tip cutting thickness according to claim 6, characterized in that: The top of the transmission component (71) is provided with a limiting spring buckle (713), and the interior of the housing (1) is provided with a number of limiting grooves (14) that are spaced apart along the moving direction of the transmission component (71). When the toggle block (72) drives the transmission component (71) to move, the free end of the limiting spring buckle (713) is used to switch back and forth in a number of limiting grooves (14) and finally engage with one of the limiting grooves (14) to lock the toggle assembly (7).

10. The electric pencil sharpener with adjustable tip cutting thickness according to claim 6, characterized in that: The outer end face of the transmission component (71) forms an arc surface (714) for fitting against the inner sidewall of the housing (1).

Images