Electric pencil sharpener

Abstract

The present application relates to a kind of electric pencil sharpener, including pencil mechanism, for automatically entering pencil;Knife rest mechanism, for cutting pencil;Scrap bucket, for accommodating scrap;Base;The pencil mechanism, knife rest mechanism and base are sequentially arranged from top to bottom;The pencil mechanism includes pencil box, and knife rest mechanism includes knife rest seat, and the knife rest seat is equipped with the outwardly protruding clamping block, and the pencil box is equipped with the downwardly protruding clamping hook, and the clamping block is matched with the clamping hook, and the scrap bucket is sleeved in the outside of knife rest mechanism, and the upper and lower ends of scrap bucket are respectively connected with pencil box and base.A kind of electric pencil sharpener obtained by the present application has the following advantages: the design of clamping block and clamping hook makes the disassembly and assembly of pencil mechanism and knife rest mechanism simple and convenient, and only needs to rotate pencil mechanism to disassemble and assemble the whole pencil mechanism.The two ends of scrap bucket are only buckled on pencil box and base, and disassembly and assembly are simple, which is convenient for the treatment of scrap.

Description

Technical Field

[0001] This invention relates to the field of stationery, and in particular to an electric pencil sharpener. Background Technology

[0002] An electric pencil sharpener is a common stationery item, consisting of a housing assembly, a blade holder assembly, a drive assembly, and a power supply assembly. The blade holder assembly, drive assembly, and power supply assembly are located inside the housing assembly. The drive assembly consists of a motor and a gearbox, with the motor electrically connected to the power supply assembly, and the gearbox drivingly connecting the motor and the blade holder assembly. Thus, the motor's power is transmitted to the blade holder, causing the blade on the blade holder to rotate, ultimately completing the pencil sharpening process.

[0003] In the existing technology, electric pencil sharpeners have many mechanisms, and disassembly and assembly are usually difficult. When sharpening pencils, the pencil tip may break off inside, making it troublesome for users to deal with this kind of failure. Summary of the Invention

[0004] One objective of this application is to provide an electric pencil sharpener that is easy to assemble and disassemble, and facilitates the removal of broken pencil tips.

[0005] The technical solution adopted in this application is: an electric pencil sharpener, comprising...

[0006] The pen feeding mechanism is used for automatic pen feeding.

[0007] Tool holder mechanism, used for cutting pens;

[0008] Waste bins are used to hold waste materials;

[0009] Base;

[0010] The pen feeding mechanism, the knife holder mechanism, and the base are arranged sequentially from top to bottom. The pen feeding mechanism includes a pen feeding box, the knife holder mechanism includes a knife holder seat, the knife holder seat is provided with an outwardly protruding locking block, the pen feeding box is provided with a downwardly protruding locking hook, the locking block and the locking hook cooperate, the waste bin is sleeved outside the knife holder mechanism, and the upper and lower ends of the waste bin are connected to the pen feeding box and the base, respectively.

[0011] Compared with existing technologies, the advantages of this application lie in the design of the locking block and hook, which makes the assembly and disassembly of the pen feeding mechanism and the blade holder mechanism simple and convenient. The entire pen feeding mechanism can be disassembled and assembled simply by rotating it. The two ends of the waste bin are only fastened to the pen feeding box and the base, making disassembly and assembly simple and facilitating the disposal of waste. The base design can accommodate the motor, etc., concentrating the weight at the bottom and making the entire electric pencil sharpener more stable. After removing the pen feeding mechanism and waste bin, the blade holder mechanism is exposed, and without the obstruction of the pen feeding mechanism, broken pencils can be directly removed.

[0012] In some embodiments of the present application, the pen entry mechanism comprises a first rotating shaft and a second rotating shaft arranged symmetrically, the first rotating shaft and the second rotating shaft are arranged in the pen entry box, a first clamping wheel and a first limiting sleeve are sleeved on the first rotating shaft, a second clamping wheel and a second limiting sleeve are sleeved on the second rotating shaft, the first limiting sleeve and the second limiting sleeve are arranged at opposite ends; the first clamping wheel is movable in the axial direction on the first rotating shaft, and the second clamping wheel is movable in the axial direction on the second rotating shaft; in the pen entry state, the first clamping wheel and the second clamping wheel have a movement trend towards misalignment.

[0013] Further, the first rotating shaft and the second rotating shaft are provided below a rotating disc, a first gear for transmission connection with the rotating disc is sleeved on the first rotating shaft, and a second gear for transmission connection with the rotating disc is sleeved on the second rotating shaft; the rotating disc is provided with a convex point arranged around the center of rotation of the rotating disc.

[0014] Further, the first gear is a first helical gear arranged on the rotation path of the convex point; a first boss is arranged on the side of the first helical gear facing the first clamping wheel; the top of the first boss is conical; the second gear is a second helical gear arranged on the rotation path of the convex point; a second boss is arranged on the side of the second helical gear facing the second clamping wheel; the top of the second boss is conical.

[0015] In some embodiments of the present application, a delay pen withdrawal mechanism is arranged in the base; the delay pen withdrawal mechanism comprises a pen tip triggering rod, a delay block and a pen withdrawal triggering rod, the pen tip triggering rod and the delay block are in transmission connection; the delay block is provided with a pushing surface; one end of the pen withdrawal triggering rod is arranged on the movement path of the pushing surface; a delay distance is arranged between the pen withdrawal triggering rod and the pushing surface.

[0016] Further, the delay block is provided with a rack; the pen tip triggering rod is provided with a first delay gear; in the delay state, the first delay gear and the rack are in transmission connection; a second delay gear is arranged between the first delay gear and the rack, the second delay gear is arranged below the first delay gear, the second delay gear is engaged with the rack, and the projection of the first delay gear on the horizontal plane is engaged with the projection of the second delay gear on the horizontal plane.

[0017] Further, a connecting sleeve is sleeved on part of the pen tip triggering rod, the two ends of the connecting sleeve are connected with the first delay gear and the pen tip triggering rod respectively; a square groove is arranged on the side of the connecting sleeve facing the first delay gear, a square rod is arranged on the first delay gear, and the square rod is arranged in the square groove; a circular hole is arranged on the side of the connecting sleeve facing the pen tip triggering rod, the circular hole is communicated with the square groove, and the pen tip triggering rod is rotationally connected with the connecting sleeve through the circular hole.

[0018] Further, the base is internally provided with a rack locking mechanism; the rack locking mechanism comprises a touch lever and a locking block; the touch lever is in transmission connection with the locking block; the delay block is provided with a locking groove on the side facing the locking block; in the locking state, the locking block is clamped into the locking groove.

[0019] Further, the touch lever is provided with at least a push block protruding towards the side of the locking block, and the touch lever is in transmission connection with the locking block through the push block; in the locking state, the side surface of the push block is in abutment with the locking block; the push block adopts a circular truncated cone, the circular truncated cone is coaxial with the touch lever, the maximum diameter of the circular truncated cone is greater than the diameter of the touch lever, and the inclined surface of the circular truncated cone faces downward; a cylindrical body is arranged above the circular truncated cone, and the cylindrical body is connected with the circular truncated cone.

[0020] Further, the locking block is arranged on the side of the delay block and on the same side of the locking groove; the locking block comprises a locking hook, a rotating plate and a rotating sleeve, the locking hook and the rotating plate are both connected with the rotating sleeve, the locking hook is matched with the locking groove, and the rotating plate is in transmission connection with the touch lever; the locking hook and the rotating plate synchronously rotate around the center of the rotating sleeve; in the locking state, the locking hook is clamped into the locking groove; the locking block is provided with a first reset spring, and the first reset spring is used for resetting the locking block; the first reset spring adopts a torsional spring, and the torsional spring is sleeved on the rotating sleeve.

[0021] Further, it further comprises a pen tip thickness adjusting mechanism; the pen tip thickness adjusting mechanism comprises an adjusting piece, and the adjusting piece is used for adjusting the distance between the first delay gear and the second delay gear; the top surface of the adjusting piece is in abutment with the bottom surface of the second delay gear; the second delay gear is provided with an elastic piece, and the two ends of the second delay gear are respectively in abutment with the adjusting piece and the elastic piece.

[0022] Further, the pen tip thickness adjusting mechanism further comprises an adjusting wheel, and the adjusting wheel is in transmission connection with the adjusting piece; the adjusting piece is provided with a waist hole, the adjusting wheel is provided with a push column, and the push column is arranged in the waist hole; the adjusting wheel is provided with an extension plate, and the push column is arranged on the extension plate.

[0023] Further, it further comprises a starting touch block synchronization mechanism; the starting touch block synchronization mechanism comprises a starting touch block, a synchronization piece, a transmission piece and a partition plate, the starting touch block is used for judging the entry of the pen barrel, the synchronization piece is used for synchronizing the action of the starting touch block, the transmission piece is used for transmitting the action of the starting touch block to the touch lever, and the partition plate is used for separating the starting touch block synchronization mechanism and the pen entering mechanism, and the partition plate is arranged on the pen entering box; the pen entering mechanism is provided with a pen entering hole; the starting touch blocks are symmetrically arranged on the two sides of the pen entering hole; part of the starting touch blocks shields the pen entering hole; the starting touch blocks can move on the partition plate; the synchronization pieces are symmetrically arranged, and the two synchronization pieces are respectively connected with the starting touch blocks on one side; the two synchronization pieces are synchronously rotated or moved through a transmission assembly; in the working state, the two synchronization pieces respectively drive the relative movement of the starting touch blocks on one side. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1is a structural schematic diagram of embodiment 1 of the present application;

[0025] Figure 2 is a structural schematic diagram of the separation pen feeding mechanism and the scrap barrel of embodiment 1 of the present application;

[0026] Figure 3 is Figure 2 is an enlarged view of A part in

[0027] Figure 4 is Figure 2 is an enlarged view of B part in

[0028] Figure 5 is a structural schematic diagram of the pen feeding mechanism of embodiment 1 of the present application;

[0029] Figure 6 is an exploded view of the pen feeding mechanism of embodiment 1 of the present application;

[0030] Figure 7 is a structural schematic diagram of the large pen entering the pen feeding mechanism of embodiment 1 of the present application;

[0031] Figure 8 is a structural schematic diagram of the small pen entering the pen feeding mechanism of embodiment 1 of the present application;

[0032] Figure 9 is a structural schematic diagram of the inside of the base of embodiment 1 of the present application Figure 1 ;

[0033] Figure 10 is a structural schematic diagram of the inside of the base of embodiment 1 of the present application Figure 2 ;

[0034] Figure 11 is a top view of embodiment 1 of the present application;

[0035] Figure 12 is Figure 11 is a sectional view after rotation in C-C direction in

[0036] Figure 13 is Figure 11 is a sectional view after rotation in D-D direction in

[0037] Figure 14 is a structural schematic diagram of the time delay block of embodiment 1 of the present application;

[0038] Figure 15 is a structural schematic diagram of the connecting sleeve of embodiment 1 of the present application;

[0039] Figure 16 is a structural schematic diagram of the rack locking mechanism of embodiment 1 of the present application;

[0040] Figure 17is a structural schematic view of the lock block of the embodiment 1 of the present application;

[0041] Figure 18 is a structural schematic view of the pen tip thickness adjusting mechanism of the embodiment 1 of the present application;

[0042] Figure 19 is a structural schematic view of the adjusting wheel of the embodiment 1 of the present application;

[0043] Figure 20 is a structural schematic view of the adjusting member of the embodiment 1 of the present application;

[0044] Figure 21 is a structural schematic view of the starting touch block synchronization mechanism of the embodiment 1 of the present application;

[0045] Figure 22 is a structural schematic view of the starting touch block synchronization mechanism of the embodiment 1 of the present application; Figure 13

[0046] Figure 23 is a structural schematic view of the synchronization member of the embodiment 1 of the present application.

[0047] ​In the figure: 1, pen feeding mechanism; 11, pen feeding box; 111, clasp; 112, protruding block; 113, mounting plate; 114, mounting groove; 12, first rotating shaft; 121, first clamping wheel; 122, first limiting sleeve; 13, second rotating shaft; 131, second clamping wheel; 132, second limiting sleeve; 14, rotating disc; 141, protruding point; 15, first helical gear; 151, first boss; 16, second helical gear; 161, second boss; 17, pen feeding hole; 2, knife holder mechanism; 21, knife holder seat; 211, clamping block; 212, fixing groove; 3, pen retracting mechanism; 31, pen tip triggering rod; 32, delay block; 321, pushing surface; 322, rack; 323, locking groove; 324, third return spring; 325, mounting column; 33, pen retracting triggering rod; 34, delay distance; 35, first delay gear; 351, square rod; 352, second return spring; 353, guide column; 36, second delay gear; 361, upper rod; 362, lower rod; 37, connecting sleeve; 371, square groove; 372, round hole; 38, pen blocking block; 4, rack locking mechanism; 41, triggering rod; 411, circular table; 412, cylindrical body; 42, locking block; 421, locking hook; 422, rotating plate; 423, rotating sleeve; 44, first return spring; 5, pen tip thickness adjusting mechanism; 51, adjusting piece; 511, waist hole; 512, step surface; 52, elastic piece; 53, adjusting wheel; 531, pushing column; 532, extension plate; 54, rack pressing block; 541, second guide groove; 542, second guide hole; 543, through hole; 6, starting trigger block synchronization mechanism; 61, starting trigger block; 611, guide strip; 62, synchronization piece; 621, hook; 63, transmission piece; 631, through groove; 64, partition plate; 65, transmission assembly; 651, synchronization gear; 66, fourth return spring; 7, motor; 71, gear set; 72, driving gear; 9, base; 91, motor support; 92, first guide groove; 93, first guide hole; 94, rotating column; 95, notch; 10, scrap bucket. DETAILED DESCRIPTION

[0048] In order to further clarify the technical means and effects adopted by the present application to achieve the predetermined object of the present application, the specific embodiments, structures, features and effects thereof according to the present application are described in detail below in combination with the drawings and preferred embodiments.

[0049] Example 1

[0050] The electric pen sharpener provided in the present embodiment, as shown in the figure, comprises Figures 1-4 a pen feeding mechanism 1 for automatically feeding a pen;

[0051] a knife holder mechanism 2 for cutting the pen;

[0052]

[0053] ​A waste bin 10 is arranged for containing the waste;

[0054] The base 9;

[0055] The pen feeding mechanism 1, the knife holder mechanism 2 and the base 9 are arranged in sequence from top to bottom; the pen feeding mechanism 1 comprises a pen feeding box 11, the knife holder mechanism 2 comprises a knife holder seat 21, the knife holder seat 21 is provided with a clamping block 211 protruding outward, the pen feeding box 11 is provided with a clamping hook 111 protruding downward, the clamping block 211 cooperates with the clamping hook 111, the waste bin 10 is sleeved outside the knife holder mechanism 2, and the upper and lower ends of the waste bin 10 are connected with the pen feeding box 11 and the base 9 respectively.

[0056] The pen feeding mechanism 1 is arranged at the top, which is convenient for feeding and disassembling. The design of the clamping block 211 and the clamping hook 111 makes the disassembly of the pen feeding mechanism 1 and the knife holder mechanism 2 simple and convenient, and the pen feeding mechanism 1 can be disassembled and assembled by rotating the pen feeding mechanism 1. The two ends of the waste bin 10 are only buckled on the pen feeding box 11 and the base 9, and the disassembly is simple and convenient, which is convenient for the treatment of waste. The design of the base 9 can accommodate a motor and the like, so that the weight is concentrated at the bottom, and the whole electric pencil sharpener is placed more stably.

[0057] In order to make the pen feeding mechanism 1 more firm, the clamping block 211 is provided with a fixing groove 212, the clamping hook 111 is provided with a protruding block 112, and the fixing groove 212 cooperates with the protruding block 112.

[0058] In order to feed the pen reliably, the pen feeding mechanism 1 is provided with a clamping block 211, the pen feeding box 11 is provided with a clamping hook 111, and the clamping block 211 cooperates with the clamping hook 111. Figures 5-8As shown, the pen insertion mechanism 1 comprises a first rotating shaft 12 and a second rotating shaft 13 arranged symmetrically, the first rotating shaft 12 and the second rotating shaft 13 are arranged in the pen insertion box 11, the first rotating shaft 12 is sleeved with a first clamping wheel 121 and a first limiting sleeve 122, the second rotating shaft 13 is sleeved with a second clamping wheel 131 and a second limiting sleeve 132, the first limiting sleeve 122 and the second limiting sleeve 132 are arranged at opposite ends; the first clamping wheel 121 can move axially on the first rotating shaft 12, and the second clamping wheel 131 can move axially on the second rotating shaft 13; in the pen insertion state, the first clamping wheel 121 and the second clamping wheel 131 have a movement trend of being arranged towards misalignment. The first limiting sleeve 122 and the second limiting sleeve 132 are used to limit the position of the first clamping wheel 121 and the second clamping wheel 131, prevent the misalignment distance of the first clamping wheel 121 and the second clamping wheel 131 from being too large, causing difficulty in inserting the pen; the first clamping wheel 121 and the second clamping wheel 131 can move axially, so that the pen tip of a large pen can push apart the first clamping wheel 121 and the second clamping wheel 131, ensuring that the large pen can be inserted, and the pen barrel of a small pen can be clamped by the misalignment movement of the first clamping wheel 121 and the second clamping wheel 131 in the pen insertion state; in the pen insertion state, the first clamping wheel 121 and the second clamping wheel 131 have a movement trend of being arranged towards misalignment, that is, the axial movement of the first clamping wheel 121 on the first rotating shaft 12 and the axial movement of the second clamping wheel 131 on the second rotating shaft 13 are opposite movements, which can clamp different sizes of pencils, improve the application range, and the clamping area is large and stable. The movement trend of the first clamping wheel 121 and the second clamping wheel 131 can be provided by a resilient member.

[0059] In order to rotate smoothly, a shaft sleeve is arranged between the first clamping wheel 121 and the first rotating shaft 12, and a shaft sleeve is arranged between the second clamping wheel 131 and the second rotating shaft 13.

[0060] In order to rotate reliably, the lower part of the first rotating shaft 12 and the second rotating shaft 13 is provided with a rotating disc 14, the first rotating shaft 12 is sleeved with a first gear for transmission connection with the rotating disc 14, and the second rotating shaft 13 is sleeved with a second gear for transmission connection with the rotating disc 14. The power of the rotating disc 14 is provided by the motor 7, the rotating disc 14 drives the first gear and the second gear, the first gear and the second gear drive the first rotating shaft 12 and the second rotating shaft 13 to rotate respectively, so that the first clamping wheel 121 and the second clamping wheel 131 rotate, which is convenient for inserting the pen.

[0061] In order to transmit reliably, the rotating disc 14 is provided with a convex point 141 arranged around the center of rotation of the rotating disc 14. In this embodiment, 18 convex points 141 are arranged. Compared with the machining of a spiral line, the design of the convex point 141 is more convenient, and the use is less likely to be damaged, and the durability is better.

[0062] In order to ensure reliable transmission, the first gear is a first helical gear 15 arranged on the rotation path of the convex point 141; the first helical gear 15 is provided with a first boss 151 on the side surface facing the first clamping wheel 121; the top of the first boss 151 is tapered; the second gear is a second helical gear 16 arranged on the rotation path of the convex point 141; the second helical gear 16 is provided with a second boss 161 on the side surface facing the second clamping wheel 131; the top of the second boss 161 is tapered. The first helical gear 15 and the second helical gear 16 are in the state of meshing in and out at every moment in work, and there is no meshing blind area, so as to ensure the uniformity and stability of the speed. In addition, the first helical gear 15 and the second helical gear 16 will generate a force moving towards the first clamping wheel 121 and the second clamping wheel 131 respectively in work, so as to press the first clamping wheel 121 and the second clamping wheel 131 tightly by the first helical gear 15 and the second helical gear 16 respectively, so as to ensure the stable clamping force and reliable transmission, and at the same time, the first clamping wheel 121 and the second clamping wheel 131 can move towards the first limiting sleeve 122 and the second limiting sleeve 132 respectively, so as to reset the first clamping wheel 121 and the second clamping wheel 131 and keep the staggered arrangement of the first clamping wheel 121 and the second clamping wheel 131. The cooperation of the helical gear and the spiral line will be limited by the spiral line, and the axial movement distance is small. However, the convex point 141 can mesh in the axial range of the first helical gear 15, so that the axial movement distance of the first helical gear 15 on the first rotating shaft 12 is large, and the size range of the applicable pen barrel can be improved. The second helical gear 16 is the same. The design of the first boss 151 can ensure reliable transmission between the first helical gear 15 and the first clamping wheel 121. The first boss 151 can grip the first clamping wheel 121, the first clamping wheel 121 is a rubber wheel, and the first boss 151 can make the rubber concave when being pressed in, so as to increase the friction between them. The second boss 161 is the same. The top of the first boss 151 and the second boss 161 is tapered, the top area is small, the pressure is large, it can be pressed into the rubber more easily, and the grip on the first clamping wheel 121 or the second clamping wheel 131 can be better, so as to prevent the relative sliding between the first helical gear 15 and the first clamping wheel 121 and the relative sliding between the second helical gear 16 and the second clamping wheel 131 during transmission.

[0063] The clamping surfaces of the first clamping wheel 121 and the second clamping wheel 131 are both arc-shaped, which is more suitable for the shape of the pen barrel, has a larger contact area, is not easy to shake, and is more conducive to the pen entering. In addition, the two arc-shaped surfaces are staggered, and the pen barrel can also abut against the side surface of the arc-shaped surface, so as to ensure the clamping of the pen barrel.

[0064] For reliable installation, the pen feed box 11 is provided with two opposing mounting plates 113. The mounting plates 113 are provided with mounting grooves 114 for mounting the first rotating shaft 12 and the second rotating shaft 13. The mounting plates 113 can provide support for the first rotating shaft 12 and the second rotating shaft 13, and the mounting grooves 114 facilitate the placement and installation of the first rotating shaft 12 and the second rotating shaft 13.

[0065] To delay retraction of the pen, such as Figures 9-12 As shown, the base 9 is equipped with a delayed pen retraction mechanism 3; the delayed pen retraction mechanism 3 includes a pen tip actuation rod 31, a delay block 32, and a pen retraction actuation rod 33, with the pen tip actuation rod 31 and the delay block 32 being tractively connected; the delay block 32 is provided with a pushing surface 321; one end of the pen retraction actuation rod 33 is positioned on the moving path of the pushing surface 321; a delay gap 34 is provided between the pen retraction actuation rod 33 and the pushing surface 321. In this embodiment, the pushing surface 321 is an inclined surface. The pen tip actuation rod 31 passes through the base 9, and the base 9 guides the movement of the pen tip actuation rod 31. The pushing surface 321 is used to push the retracting trigger rod 33; the retracting trigger rod 33 is set on the moving path of the pushing surface 321, which can ensure that the movement of the delay block 32 can cause the pushing surface 321 to push the retracting trigger rod 33; the design of the delay distance 34 means that the movement of the delay block 32 cannot cause the pushing surface 321 to directly trigger the retracting trigger rod 33. The delay block 32 needs to first reduce the delay distance 34 until the pushing surface 321 and the retracting trigger rod 33 come into contact. During this period, the pencil is still in the cutting state, which can make the tip sharper, and the wear caused by the tip pressing down will also be cut and repaired during this period.

[0066] To ensure reliable transmission between the pen tip actuation lever 31 and the delay block 32, such as Figure 14 As shown, the delay block 32 is equipped with a rack 322; the pen tip actuation rod 31 is equipped with a first delay gear 35; in the delay state, the first delay gear 35 and the rack 322 are connected in a transmission manner. Compared with pushing the delay block 32, the transmission efficiency of the gear meshing is higher and the transmission is more reliable. The control of the moving speed of the delay block 32 by the rack 322 is also more convenient.

[0067] In order to facilitate the control of the moving speed of the delay block 32, the first delay gear 35 and the rack 322 are provided with a second delay gear 36, the second delay gear 36 is arranged below the first delay gear 35, the second delay gear 36 is engaged with the rack 322, and the projection of the first delay gear 35 on the horizontal plane is engaged with the projection of the second delay gear 36 on the horizontal plane. In the delay state, the first delay gear 35 is engaged with the second delay gear 36. The second delay gear 36 is divided into upper and lower parts, the upper part can be engaged with the first delay gear 35, and the lower part is engaged with the rack 322. The second delay gear 36 is designed so that the first delay gear 35 does not directly contact the rack 322, but the first delay gear 35 is transmitted to the second delay gear 36, and then the second delay gear 36 drives the rack 322, thereby moving the delay block 32, facilitating the adjustment of the moving speed of the delay block 32, controlling the delay trigger time, and at the same time, the moving distance of the first delay gear 35 downward until the second delay gear 36 is engaged, which also serves as the delay distance.

[0068] In order to reliably install the first delay gear 35 and the pen tip triggering rod 31, a connecting sleeve 37 is sleeved on part of the pen tip triggering rod 31, and the two ends of the connecting sleeve 37 are connected with the first delay gear 35 and the pen tip triggering rod 31 respectively. The design of the connecting sleeve 37 makes the connection between the first delay gear 35 and the pen tip triggering rod 31 more reliable.

[0069] In order to connect reliably, as shown in Figure 13 , Figure 15 , the side of the connecting sleeve 37 facing the first delay gear 35 is provided with a square groove 371, the first delay gear 35 is provided with a square rod 351, and the square rod 351 is arranged in the square groove 371; the side of the connecting sleeve 37 facing the pen tip triggering rod 31 is provided with a circular hole 372, the circular hole 372 is communicated with the square groove 371, and the pen tip triggering rod 31 is rotatably connected with the connecting sleeve 37 through the circular hole 372. The cooperation of the square groove 371 and the square rod 351 enables the connecting sleeve 37 to rotate synchronously with the first delay gear 35; the cooperation of the circular hole 372 and the pen tip triggering rod 31 enables the rotation of the connecting sleeve 37 not to affect the pen tip triggering rod 31, and the communication between the circular hole 372 and the square groove 371 enables the pen tip triggering rod 31 to be directly connected with the square rod 351, thereby ensuring the reliable transmission of the first delay gear 35 by the pen tip triggering rod 31, and the downward pressing of the pen tip triggering rod 31 only acts on the square rod 351, without affecting the connecting sleeve 37.

[0070] In order to ensure the rotation of the first delay gear 35, a motor 7 is further arranged, and the motor 7 is drivingly connected with the connecting sleeve 37 through a gear set 71. Specifically, a driving gear 72 is arranged on the connecting sleeve 37, and the driving gear 72 is drivingly connected with the motor 7 through the gear set 71. The motor 7 is used to provide the rotating power of the first delay gear 35, the cutting power of the tool holder mechanism 2, and the rotating power of the pen feeding mechanism 1.

[0071] In order to reset the first delay gear 35 reliably, the first delay gear 35 is provided with a second reset spring 352 for resetting the first delay gear 35; the first delay gear 35 is provided with a guide column 353, and the second reset spring 352 is sleeved on the guide column 353. The design of the second reset spring 352 enables the first delay gear 35 to be reset upward under the pushing of the second reset spring 352 after the stylus is no longer pressed down, and simultaneously resets the stylus triggering rod 31.

[0072] In order to reset the delay block 32 reliably, the delay block 32 is provided with a third reset spring 324 for resetting the delay block 32; the delay block 32 is provided with a mounting column 325, one end of the third reset spring 324 is connected with the mounting column 325, and the other end of the third reset spring 324 is connected with the base 9. The design of the third reset spring 324 enables the delay block 32 to be reset under the pulling of the third reset spring 324 after the first delay gear 35 is reset.

[0073] In order to trigger the stylus reliably, the upper side of the stylus triggering rod 31 is provided with a pen blocking block 38; the pen blocking block 38 is in transmission connection with the stylus triggering rod 31. The design of the pen blocking block 38 enables the area that can be triggered by the stylus to be larger, and guarantees the reliable triggering of the stylus triggering rod 31; the pen blocking block 38 can be made of soft material, and is better in protection of the stylus, and prevents the stylus from being broken or worn when being pressed down.

[0074] In order to guarantee the stable operation of the pen retraction, as shown in Figure 16 The base 9 is provided with a rack locking mechanism 4; the rack locking mechanism 4 includes a triggering rod 41 and a locking block 42; the triggering rod 41 is in transmission connection with the locking block 42; the delay block 32 is provided with a locking groove 323 on the side facing the locking block 42; in the locked state, the locking block 42 is clamped into the locking groove 323. The cooperation of the locking block 42 and the locking groove 323 enables the delay block 32 to be locked after being moved to the position, prevents the delay block 32 from being retracted, guarantees the stable operation of the pen retraction, and is a pure mechanical locking, which is reliable.

[0075] In order to trigger the locking block 42 reliably by the triggering rod 41, the triggering rod 41 is provided with a pushing block protruding at least on the side facing the locking block 42, and the triggering rod 41 is in transmission connection with the locking block 42 through the pushing block; in the locked state, the side surface of the pushing block is in abutment with the locking block 42. The design of the pushing block enables the triggering rod 41 to push the locking block 42, and guarantees the reliable clamping of the locking block 42 into the locking groove 323.

[0076] To ensure reliable pushing of the push block, the push block is a frustum 411, coaxial with the contact rod 41. The maximum diameter of the frustum 411 is larger than the diameter of the contact rod 41, and the inclined surface of the frustum 411 faces downwards. A cylinder 412 is provided above the frustum 411, and the cylinder 412 is connected to the frustum 411. The design of the frustum 411 ensures that the rotation of the contact rod 41 does not affect the pushing of the locking block 42 by the frustum 411, facilitating the installation of the contact rod 41. The downward-facing inclined surface allows the locking block 42 to move outwards along the inclined surface, preventing the push block and the locking block 42 from jamming together. The design of the cylinder 412 ensures that after the locking block 42 moves to the side of the frustum 411, it will also abut against the outer surface of the cylinder 412, resulting in a large contact area and stable support for the locking block 42. Of course, the push block can also be a frustum of a pyramid.

[0077] For reliable locking of lock block 42, such as Figure 17 As shown, the locking block 42 is located on the side of the delay block 32 and on the same side as the locking groove 323. The locking block 42 includes a locking hook 421, a rotating plate 422, and a rotating sleeve 423. The locking hook 421 and the rotating plate 422 are both connected to the rotating sleeve 423. The locking hook 421 cooperates with the locking groove 323, and the rotating plate 422 is connected to the contact rod 41. The locking hook 421 and the rotating plate 422 rotate synchronously around the center of the rotating sleeve 423. In the locked state, the locking hook 421 is engaged in the locking groove 323. The locking block 42 is provided with a first return spring 44, which is used to reset the locking block 42. The first return spring 44 is a torsion spring, which is sleeved on the rotating sleeve 423. One end of the torsion spring abuts against the rotating plate 422, and the other end is connected to the motor bracket 91.

[0078] To ensure reliable locking, at least two locking slots 323 are provided. In this embodiment, five locking slots 323 are provided. The design of multiple locking slots 323 ensures that even if the lock block 42 does not engage with the first locking slot 323, it can still engage with subsequent locking slots 323, thus guaranteeing reliable locking.

[0079] To ensure that multiple locking slots 323 can be used, the side of the locking slot 323 away from the locking block 42 is not locked to the locking block 42, while the side of the locking slot 323 close to the locking block 42 can be locked to the locking block 42, so that the movement of the delay block 32 toward the triggering direction will not be locked by the locking block 42. In this embodiment, the side of the locking slot 323 away from the locking block 42 has an incline, and the contact surface between the locking block 42 and this side also has an incline.

[0080] In order to install reliably, the base 9 is provided with a motor support 91 for providing an installation position; the delay block 32 and the lock block 42 are arranged on the motor support 91; the motor support 91 is provided with a first guide groove 92 and a first guide hole 93, the delay block 32 is arranged on the first guide groove 92, and the touch rod 41 is arranged on the first guide hole 93. The cylinder 412 and the circular truncated cone 411 are arranged on the same side of the motor support 91 and the lock block 42, the diameter of the cylinder 412 is greater than the diameter of the first guide hole 93; the motor support 91 is provided with a rotating column 94, and the rotating sleeve 423 is sleeved on the rotating column 94. The design of the first guide groove 92 can play a guiding role, so that the delay block 32 moves on the first guide groove 92, and the stability of the movement of the delay block 32 is guaranteed; the design of the first guide hole 93 can play a guiding role, so that the touch rod 41 moves on the first guide hole 93, and the stability of the movement of the touch rod 41 is guaranteed; the diameter of the cylinder 412 is greater than the diameter of the first guide hole 93, so that the first guide hole 93 can play a limiting role, and the circular truncated cone 411 is prevented from falling out.

[0081] In order to facilitate the adjustment of the thickness of the pen tip, as shown in Figure 18 , a pen tip thickness adjusting mechanism 5 is further included; the pen tip thickness adjusting mechanism 5 includes an adjusting piece 51 for adjusting the distance between the first delay gear 35 and the second delay gear 36; the top surface of the adjusting piece 51 is in abutment with the bottom surface of the second delay gear 36. By adjusting the height of the second delay gear 36 through the adjusting piece 51, the distance between the second delay gear 36 and the first delay gear 35 is changed, and then the height required for the first delay gear 35 to drop is changed, that is, the height of the pen tip to be pressed and the triggering time of the delay block 32 are changed.

[0082] In order to adjust the stability of the adjusting piece 51, as shown in Figure 20 , at least two stepped surfaces 512 are arranged on the adjusting piece 51, and the heights of the stepped surfaces 512 are arranged in order from low to high or from high to low; the second delay gear 36 is in abutment with the stepped surface 512; and the stepped surface 512 is arranged in parallel with the horizontal plane. The design of the plurality of stepped surfaces 512 realizes the adjustment of the distance between the second delay gear 36 and the first delay gear 35 by the abutment of the second delay gear 36 with the stepped surfaces 512 of different heights. Of course, the stepped surface 512 can be replaced by an inclined surface to realize infinite adjustment.

[0083] In order to reliably abut the second delay gear 36 with the adjusting piece 51, the second delay gear 36 is provided with an elastic piece 52, and the two ends of the second delay gear 36 are in abutment with the adjusting piece 51 and the elastic piece 52, respectively. The design of the elastic piece 52 enables the second delay gear 36 to maintain abutment with the adjusting piece 51, so that the height adjustment of the second delay gear 36 by the adjusting piece 51 is reliable. In the embodiment, the elastic piece 52 is a spring.

[0084] To ensure reliable adjustment of the adjusting component 51, a rack and pinion block 54 is provided below the delay block 32. The rack and pinion block 54 is used to limit the delay block 32. A second guide groove 541 is provided on the rack and pinion block 54, and part of the adjusting component 51 is disposed on the second guide groove 541. The design of the second guide groove 541 can guide the movement of the adjusting component 51, so that the movement of the adjusting component 51 can adjust the height of the second delay gear 36.

[0085] The rack and pinion block 54 is also provided with a second guide hole 542 and a through hole 543; the guide post 353 passes through the second guide hole 542, and the guide post 353 and the second guide hole 542 cooperate to ensure the reliable movement of the first delay gear 35; the second return spring 352 is provided between the first delay gear 35 and the second guide hole 542; the two ends of the second delay gear 36 are respectively provided with a protruding upper rod 361 and a lower rod 362, the elastic element 52 is sleeved on the upper rod 361, and the lower rod 362 abuts against the step surface 512 through the through hole 543. The lower rod 362 and the through hole 543 cooperate to ensure the reliable movement of the second delay gear 36.

[0086] To facilitate the movement of the adjusting component 51, such as Figure 19 As shown, the pen tip thickness adjustment mechanism 5 also includes an adjustment wheel 53, which is connected to the adjustment member 51 via a transmission connection. The adjustment member 51 has a waist hole 511, and the adjustment wheel 53 has a push post 531, which passes through the waist hole 511. Of course, the waist hole 511 can also be replaced by a long slot. The design of the adjustment wheel 53 facilitates the movement of the adjustment member 51; simply rotating the adjustment wheel 53 is enough to move the adjustment member 51. The waist hole 511 and the push post 531 work together to decompose the circular motion of the push post 531 into movement along the length of the waist hole 511 and pushing the adjustment member 51, ensuring the stable movement of the adjustment member 51 on the second guide slot 541.

[0087] To increase the adjustment range of the adjusting wheel 53, an extension plate 532 is provided on the adjusting wheel 53, and the pushing column 531 is set on the extension plate 532. The design of the extension plate 532 increases the rotation radius of the pushing column 531, so that after the adjusting wheel 53 rotates by the same angle, the pushing column 531 moves a greater distance.

[0088] For easy adjustment, the base 9 has a notch 95, and some of the adjustment wheels 53 are set outside the base 9 through the notch 95.

[0089] To trigger reliability, such as Figure 21As shown, the starting touch block synchronization mechanism 6 comprises a starting touch block 61, a synchronization piece 62, a transmission piece 63, and a partition plate 64. The starting touch block 61 is used to determine the entry of the pen barrel. The synchronization piece 62 is used to synchronize the action of the starting touch block 61. The transmission piece 63 is used to transmit the action of the starting touch block 61 to the touch rod 41. The partition plate 64 is used to separate the starting touch block synchronization mechanism 6 and the pen entry mechanism 1, and is arranged on the pen entry box 11. The pen entry mechanism 1 is provided with a pen entry hole 17. The starting touch block 61 is symmetrically arranged on both sides of the pen entry hole 17. Part of the starting touch block 61 blocks the pen entry hole 17. The starting touch block 61 can move on the partition plate 64. The synchronization piece 62 is symmetrically arranged, and two synchronization pieces 62 are respectively connected with the starting touch block 61 on one side. The two synchronization pieces 62 are synchronously rotated or moved through a transmission assembly 65. In the working state, the two synchronization pieces 62 drive the starting touch block 61 on one side to move relatively.

[0090] In order to transmit reliably, as shown, Figure 22 The top of the transmission piece 63 is provided with a through slot 631, and the starting touch block 61 is provided with a guide bar 611 matched with the through slot 631. The guide bar 611 is arranged on the through slot 631. The height of the bottom surface of the guide bar 611 gradually increases from the starting touch block 61 to the transmission piece 63. The upper end of the through slot 631 is arranged with an upward slope away from the side of the starting touch block 61, and the lower end of the through slot 631 is arranged with a downward slope close to the side of the starting touch block 61, so as to facilitate the entry and movement of the guide bar 611. The transmission piece 63 is a straight rod, the transmission distance is long, the through slot 631 is matched with the guide bar 611, the movement of the starting touch block 61 drives the guide bar 611 to move synchronously, and then the guide bar 611 drives the through slot 631 to move, so that the transmission piece 63 moves up and down. The guide bar 611 is arranged from low to high in a slanting manner, so that the guide bar 611 can drive the transmission piece 63 to move continuously downward or upward.

[0091] As shown, Figure 23 The transmission assembly 65 adopts two meshing synchronization gears 651, and the two synchronization gears 651 are respectively connected with the synchronization piece 62 on one side. The synchronization gear 651 and the synchronization piece 62 are in an integral structure.

[0092] The synchronization piece 62 is provided with a hook 621, and the hooks 621 are provided with a fourth reset spring 66.

[0093] The bottom of the touch rod 41 is provided with a micro switch for controlling the starting of the motor 7. In the embodiment, the tool holder mechanism 2 is a prior art, such as the electric pencil sharpener disclosed in the application number 201710692080.5, which will not be described herein.

[0094] In this embodiment, the reversing of the pen advancing mechanism 1 can be triggered by the upward movement of the pen retracting lever 33 to control the micro switch for reversing the motor 7, or a reversing assembly can be provided to control the advancing and retracting directions of the pen barrel of the pen advancing mechanism 1. The reversing assembly is a prior art, such as an automatic advancing and retracting pen mechanism and a pencil sharpener having the same, with an application number of 202320580181.4, which will not be described herein.

[0095] When the pen barrel is advanced, the pen barrel pushes the starting touch block 61 outward, the starting touch block 61 drives the transmission member 63 to move downward, the transmission member 63 pushes the touch lever 41 downward, the circular table 411 on the touch lever 41 pushes the rotating plate 422, the locking hook 421 moves synchronously toward the delay block 32, the locking hook 421 abuts against the delay block 32, the locking hook 421 is always in the entering locking state, which can ensure that the locking hook 421 is clamped into the locking slot 323 at any time, and at the same time, the touch lever 41 presses the micro switch to start the motor 7; the pen barrel is further inserted to push away the first clamping wheel 121 and the second clamping wheel 131 arranged in a staggered manner, so that the space between the first clamping wheel 121 and the second clamping wheel 131 is adapted to the pen barrel, the rotating disc 14 drives the first bevel gear 15 and the second bevel gear 16 to rotate, the first bevel gear 15 and the second bevel gear 16 move toward the center due to the rotation force, so that the first bevel gear 15 and the second bevel gear 16 abut against the first clamping wheel 121 and the second clamping wheel 131, respectively, and drive the first clamping wheel 121 and the second clamping wheel 131 to rotate and move toward the first limiting sleeve 122 and the second limiting sleeve 132, so that the pen barrel is clamped by the first clamping wheel 121 and the second clamping wheel 131, and the pen barrel is conveniently advanced with the first clamping wheel 121 and the second clamping wheel 131.

[0096] After the pencil point is sharpened, the pencil point is pressed to the pen blocking block 38, the pen blocking block 38 pushes the pencil point touch lever 31 downward, the pencil point touch lever 31 pushes the first delay gear 35, the first delay gear 35 moves downward and engages with the second delay gear 36, so that the rotation of the first delay gear 35 is transmitted to the rack 322 through the second delay gear 36, and the rack 322 moves the delay block 32 toward the pen retracting lever 33, in the process of moving the delay block 32, the pencil point is still in the cutting state, until the pushing surface 321 abuts against and pushes the pen retracting lever 33 upward, the pen retracting lever 33 is triggered to retract the pen; in the process of triggering the pen retracting, the delay block 32 moves, the locking slot 323 moves synchronously, the locking hook 421 is clamped into the locking slot 323, which can lock the delay block 32 to ensure the reliability of the pen retracting.

[0097] When the thickness of the pen tip is adjusted, the adjusting wheel 53 is rotated to move the adjusting member 51, and the movement of the adjusting member 51 makes the height of the second delay gear 36 at the stepped surface 512 different, that is, the height of the second delay gear 36 is increased or decreased; in the state that the height of the second delay gear 36 is increased, the distance between the first delay gear 35 and the second delay gear 36 is shortened, the distance that the pen tip needs to press the first delay gear 35 is shortened, the trigger time of the delay block 32 is advanced, the length of the pen tip is shortened, and the pen tip is thicker; in the state that the height of the second delay gear 36 is decreased, the distance between the first delay gear 35 and the second delay gear 36 is increased, the distance that the pen tip needs to press the first delay gear 35 is increased, the trigger time of the delay block 32 is delayed, the length of the pen tip is increased, and the pen tip is thinner.

[0098] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, change, and equivalent modification of the above embodiments, which does not depart from the technical solution of the present application, are still within the scope of the present application.

Claims

1. An electric pencil sharpener characterized by comprising: The utility model relates to a pencil sharpener, which comprises a pencil feeding mechanism (1) for automatically feeding a pencil, a pencil sharpener mechanism (2) for cutting a pencil, a scrap barrel (10) for containing scrap, a base (9), the pencil feeding mechanism (1), the pencil sharpener mechanism (2) and the base (9) are arranged in sequence from top to bottom, the pencil feeding mechanism (1) comprises a pencil feeding box (11), the pencil sharpener mechanism (2) comprises a pencil sharpener seat (21), the pencil sharpener seat (21) is provided with a clamping block (211) protruding outward, the pencil feeding box (11) is provided with a clamping hook (111) protruding downward, the clamping block (211) is matched with the clamping hook (111), the scrap barrel (10) is sleeved outside the pencil sharpener mechanism (2), and the upper end and the lower end of the scrap barrel (10) are connected with the pencil feeding box (11) and the base (9) respectively. The base (9) is provided with a delay pencil feeding mechanism (3), the delay pencil feeding mechanism (3) comprises a pencil tip triggering rod (31), a delay block (32) and a pencil feeding triggering rod (33), the pencil tip triggering rod (31) and the delay block (32) are in transmission connection, the delay block (32) is provided with a pushing surface (321), one end of the pencil feeding triggering rod (33) is arranged on the moving path of the pushing surface (321), and a delay interval (34) is arranged between the pencil feeding triggering rod (33) and the pushing surface (321). The base (9) is provided with a rack locking mechanism (4), the rack locking mechanism (4) comprises a triggering rod (41) and a locking block (42), the triggering rod (41) and the locking block (42) are in transmission connection, one side of the delay block (32) towards the locking block (42) is provided with a locking groove (323), and in the locking state, the locking block (42) is clamped into the locking groove (323). The locking block (42) is arranged at the side of the delay block (32) and on the same side of the locking groove (323), the locking block (42) comprises a locking hook (421), a rotating plate (422) and a rotating sleeve (423), the locking hook (421) and the rotating plate (422) are connected with the rotating sleeve (423), the locking hook (421) is matched with the locking groove (323), and the rotating plate (422) is in transmission connection with the triggering rod (41); the locking hook (421) and the rotating plate (422) synchronously rotate around the center of the rotating sleeve (423); in the locking state, the locking hook (421) is clamped into the locking groove (323); the locking block (42) is provided with a first reset spring (44), and the first reset spring (44) is used for resetting the locking block (42); the first reset spring (44) is a torsional spring, and the torsional spring is sleeved on the rotating sleeve (423). ​ ​ ​ ​ 2. An electric pencil sharpener according to claim 1, characterized in that: The pen entering mechanism (1) comprises a first rotation shaft (12) and a second rotation shaft (13) arranged symmetrically, the first rotation shaft (12) and the second rotation shaft (13) are arranged in the pen entering box (11), a first clamping wheel (121) and a first limiting sleeve (122) are sleeved on the first rotation shaft (12), a second clamping wheel (131) and a second limiting sleeve (132) are sleeved on the second rotation shaft (13), the first limiting sleeve (122) and the second limiting sleeve (132) are arranged at opposite ends; the first clamping wheel (121) can move axially on the first rotation shaft (12), the second clamping wheel (131) can move axially on the second rotation shaft (13); in the pen entering state, the first clamping wheel (121) and the second clamping wheel (131) have a movement trend towards the misalignment arrangement.

3. An electric pencil sharpener according to claim 2, characterized in that: The lower part of the first rotation shaft (12) and the second rotation shaft (13) is provided with a rotating disc (14), the first rotation shaft (12) is sleeved with a first gear for transmission connection with the rotating disc (14), the second rotation shaft (13) is sleeved with a second gear for transmission connection with the rotating disc (14); the rotating disc (14) is provided with a convex point (141) arranged around the rotating center of the rotating disc (14).

4. An electric pencil sharpener according to claim 3 wherein: The first gear is a first helical gear (15), the first helical gear (15) is arranged on the rotating path of the convex point (141); the side surface of the first helical gear (15) towards the first clamping wheel (121) is provided with a first boss (151); the top of the first boss (151) is conical; the second gear is a second helical gear (16), the second helical gear (16) is arranged on the rotating path of the convex point (141); the side surface of the second helical gear (16) towards the second clamping wheel (131) is provided with a second boss (161); the top of the second boss (161) is conical.

5. The electric pencil sharpener according to claim 1, wherein: The delay block (32) is provided with a rack (322); the pen nib touch lever (31) is provided with a first delay gear (35); in the delay state, the first delay gear (35) and the rack (322) are in transmission connection; a second delay gear (36) is arranged between the first delay gear (35) and the rack (322), the second delay gear (36) is arranged below the first delay gear (35), the second delay gear (36) is engaged with the rack (322), the projection of the first delay gear (35) on the horizontal plane is engaged with the projection of the second delay gear (36) on the horizontal plane.

6. An electric pencil sharpener according to claim 5 wherein: A connecting sleeve (37) is sleeved on part of the pen nib touch lever (31), the two ends of the connecting sleeve (37) are connected with the first delay gear (35) and the pen nib touch lever (31) respectively; the side of the connecting sleeve (37) towards the first delay gear (35) is provided with a square groove (371), the first delay gear (35) is provided with a square rod (351), the square rod (351) is arranged in the square groove (371); the side of the connecting sleeve (37) towards the pen nib touch lever (31) is provided with a circular hole (372), the circular hole (372) is communicated with the square groove (371), the pen nib touch lever (31) is rotationally connected with the connecting sleeve (37) through the circular hole (372).

7. The electric pencil sharpener according to claim 1, wherein: The push rod (41) is provided with a push block protruding at least on the side towards the lock block (42), and the push rod (41) is in transmission connection with the lock block (42) through the push block; in the locked state, the side surface of the push block abuts against the lock block (42); the push block adopts a circular truncated cone (411), the circular truncated cone (411) is coaxial with the push rod (41), the maximum diameter of the circular truncated cone (411) is greater than the diameter of the push rod (41), and the inclined surface of the circular truncated cone (411) faces downward; a cylindrical body (412) is arranged above the circular truncated cone (411), and the cylindrical body (412) is connected with the circular truncated cone (411).

8. The electric pencil sharpener according to claim 5, wherein: The pen tip thickness adjusting mechanism (5) further comprises an adjusting wheel (53), the adjusting wheel (53) is in transmission connection with the adjusting piece (51); the adjusting piece (51) is provided with a waist hole (511), the adjusting wheel (53) is provided with a push column (531), and the push column (531) is arranged on the waist hole (511); the adjusting wheel (53) is provided with an extension plate (532), and the push column (531) is arranged on the extension plate (532).

9. An electric pencil sharpener according to claim 8, characterized in that: The pen tip thickness adjusting mechanism (5) further comprises an adjusting wheel (53), the adjusting wheel (53) is in transmission connection with the adjusting piece (51); the adjusting piece (51) is provided with a waist hole (511), the adjusting wheel (53) is provided with a push column (531), and the push column (531) is arranged on the waist hole (511); the adjusting wheel (53) is provided with an extension plate (532), and the push column (531) is arranged on the extension plate (532).

10. The electric pencil sharpener according to claim 1, wherein: The starting touch block synchronization mechanism (6) further comprises a starting touch block (61), a synchronization piece (62), a transmission piece (63) and a partition plate (64), the starting touch block (61) is used for determining the entry of the pen barrel, the synchronization piece (62) is used for synchronizing the action of the starting touch block (61), the transmission piece (63) is used for transmitting the action of the starting touch block (61) to the push rod (41), and the partition plate (64) is used for separating the starting touch block synchronization mechanism (6) and the pen entry mechanism (1), and the partition plate (64) is arranged on the pen entry box (11); the pen entry mechanism (1) is provided with a pen entry hole (17); the starting touch block (61) is symmetrically arranged on both sides of the pen entry hole (17); part of the starting touch block (61) blocks the pen entry hole (17); the starting touch block (61) can move on the partition plate (64); the synchronization pieces (62) are symmetrically arranged, and each starting touch block (61) on one side is connected with a synchronization piece (62); the two synchronization pieces (62) are synchronously rotated or moved through a transmission assembly (65); in the working state, the two synchronization pieces (62) drive the relative movement of the starting touch blocks (61) on one side.

Images