Pencil feeding mechanism and intelligent pencil sharpener thereof

Abstract

The utility model discloses a pencil feeding mechanism and an intelligent pencil sharpener thereof, and the pencil feeding mechanism comprises a fixing part, a driving part and a driving part, the triggering assembly is installed on the fixing piece, and the triggering assembly is suitable for moving between a closing position and a starting position so as to close or start the intelligent pencil sharpener; the adjusting plate is connected to the fixing piece, and the adjusting plate is suitable for rotating around the central axis relative to the fixing piece; the pen clamping modules are arranged in the circumferential direction of the central axis, the pen clamping modules are installed on the fixing piece, and the pen clamping modules are suitable for moving in the radial direction of the fixing piece; the pen clamping module is movably connected to the adjusting plate; the linkage part is arranged between the trigger assembly and the adjusting plate, and under the condition that the trigger assembly moves from the closing position to the starting position, the trigger assembly is suitable for enabling the adjusting plate to rotate around the central axis in the first direction through the linkage part, so that the pen clamping module moves in the radial direction opposite to the central axis relative to the fixing part; therefore, the pencil feeding mechanism is suitable for clamping pencils with different diameters.

Description

Technical Field

[0001] This application relates to the field of intelligent pencil sharpeners, specifically, a pencil feeding mechanism and an intelligent pencil sharpener thereof. Background Technology

[0002] A smart pencil sharpener is a new type of stationery. It works by activating a motor when a pencil is inserted, causing the blade holder to rotate and automatically sharpen the pencil, replacing the traditional hand-cranked sharpener.

[0003] However, there are many different types of pencils on the market, and their diameters vary. Currently, the feeding mechanism of smart pencil sharpeners is not compatible with the wide variety of pencils. If the pencil has a large diameter, it may be difficult to insert the pencil into the feeding mechanism or it may not be able to be inserted at all. Utility Model Content

[0004] One object of this application is to provide a pencil feeding mechanism suitable for holding pencils of different diameters.

[0005] Another object of this application is to provide an intelligent pencil sharpener having the above-described pencil feeding mechanism, so that the intelligent pencil sharpener is suitable for cutting pencils of different diameters.

[0006] To achieve at least one of the above objectives, the technical solution adopted in this application is as follows: a pen feeding mechanism, comprising: a fixing member defining a central axis; a trigger component mounted on the fixing member, the trigger component being adapted to move between a closed position and an activated position to close or open a smart pen sharpener; an adjustment plate connected to the fixing member, the adjustment plate being adapted to rotate relative to the fixing member about the central axis; a plurality of pen clamping modules circumferentially arranged along the central axis, the pen clamping modules being mounted on the fixing member, the pen clamping modules being adapted to move radially along the fixing member; the pen clamping modules being movably connected to the adjustment plate; and a linkage component disposed between the trigger component and the adjustment plate, wherein, under the condition that the trigger component moves from the closed position to the activated position, the trigger component is adapted to cause the adjustment plate to rotate about the central axis in a first direction via the linkage component, so that the pen clamping modules move radially away from the central axis relative to the fixing member.

[0007] As a preferred embodiment, the linkage is rotatably connected to the fixing member to be adapted to rotate in a plane perpendicular to the central axis. The linkage includes a driving end and a driven end disposed opposite to each other. The driving end is connected to the triggering component, and the driven end is connected to the adjusting plate. When the triggering component moves from the closed position to the activated position, the triggering component drives the linkage to rotate, thereby driving the adjusting plate to rotate about the central axis in a first direction.

[0008] As a preferred embodiment, the adjusting plate includes a plate body and a transverse partition protruding from and connected to the plate body; the linkage includes a main body portion, the opposite ends of which define the driving end and the driven end, the driving end having a driving surface on the side facing the triggering component, the driving surface being adapted to abut against the triggering component, the driven end having a driven surface on the side facing the transverse partition, the driven surface being adapted to abut against the transverse partition, under the condition that the triggering component moves from the closed position to the activated position, the triggering component drives the linkage to rotate, thereby changing the distance from the contact point between the transverse partition and the driven surface to the rotation center of the linkage, thereby driving the adjusting plate to rotate around the central axis in a first direction.

[0009] As a preferred embodiment, the adjusting plate also has a stop wall, which protrudes and connects to the plate body and is spaced apart from the transverse partition wall along the circumference of the adjusting plate, defining a limiting groove between the stop wall and the transverse partition wall. The linkage also includes a protrusion, which is connected to the driven end and extends into the limiting groove. The protrusion and the side of the main body facing the transverse partition wall define the driven surface. The side of the protrusion facing the stop wall has a stop surface, which is adapted to abut against the stop wall.

[0010] As a preferred embodiment, the pen feeding mechanism further includes a first reset member, which elastically connects the adjusting plate and the fixing member to provide a force that drives the adjusting plate to rotate about the central axis in a second direction, so that the pen clamping module moves radially toward the central axis relative to the fixing member, wherein the first direction is opposite to the second direction.

[0011] As a preferred embodiment, the adjustment plate has a plurality of rotationally symmetrically distributed adjustment grooves. One end of the adjustment groove is located close to the central axis, and the other end of the adjustment groove is located away from the central axis. The two ends of the adjustment groove are offset circumferentially. The pen clamping module is connected to the adjustment groove to facilitate sliding along the adjustment groove.

[0012] As a preferred embodiment, the fixing member includes a base and a guide groove. The base has a plurality of communicating cavities that can accommodate the pen clamping module. The guide groove is formed in the base and extends radially along the fixing member. The pen clamping module has a protruding guide portion that is fitted and adapted to the guide groove so that the pen clamping module is suitable for radial movement relative to the fixing member.

[0013] As a preferred embodiment, the plate body of the adjustment plate is further provided with a plurality of auxiliary grooves arranged circumferentially; the pen clamping module further includes an auxiliary part, the auxiliary part extending into the auxiliary groove, the auxiliary part being adapted to move radially and circumferentially relative to the auxiliary groove, the auxiliary part having an auxiliary surface, the auxiliary surface being adapted to abut against the groove wall of the auxiliary groove to withstand radial and circumferential forces.

[0014] As a preferred embodiment, the triggering component includes a start / stop element and a pair of sliders. The start / stop element is adapted to move between a closed position and an activated position along the X direction. The two sliders are symmetrically connected to the start / stop element relative to the X direction, defining a pen insertion gap between the two sliders. When the pen insertion gap widens and the two sliders move in opposite directions along the Y direction, the start / stop element can move towards the activated position to activate the intelligent pencil sharpener. At least one of the sliders can cause the adjustment plate to rotate about the central axis in a first direction via the linkage, wherein the X direction, Y direction, and central axis are perpendicular to each other.

[0015] To achieve at least one of the above objectives, the technical solution adopted in this application is as follows: an intelligent pencil sharpener, comprising: a pencil feeding mechanism as described above; a blade holder located below the pencil feeding mechanism for cutting pencils; a drive assembly connected to the blade holder for driving the blade holder to rotate; and a switch connected to a trigger assembly of the pencil feeding mechanism, wherein the switch connects or disconnects the circuit when the trigger assembly is in an active or inactive position, thereby turning the intelligent pencil sharpener on or off.

[0016] Compared with the prior art, the beneficial effects of this application are as follows:

[0017] (1) The pen clamping module is adapted to move radially relative to the fixed part, thereby adjusting the size of the pen clamping gap between each pen clamping module so that the pen feeding mechanism is adapted to clamp pencils of different diameters.

[0018] (2) When the trigger component moves from the closed position to the activated position, the trigger component is adapted to make the adjustment plate rotate around the central axis in the first direction through the linkage, so that the pen clamping module moves radially away from the central axis relative to the fixed part, thereby expanding the pen clamping gap between each pen clamping module, which is more conducive to inserting the pencil into the pen clamping gap with less effort. Attached Figure Description

[0019] Figure 1 This is an exploded view of a pen feeding mechanism according to some embodiments of this application.

[0020] Figure 2 This is a three-dimensional structural diagram of a linkage component according to some embodiments of this application.

[0021] Figure 3 This is a three-dimensional structural schematic diagram of an adjustment plate according to some embodiments of this application.

[0022] Figure 4 This is a three-dimensional structural schematic diagram of a slider according to some embodiments of this application.

[0023] Figure 5 This is a three-dimensional structural schematic diagram of a support frame according to some embodiments of this application.

[0024] Figure 6 This is a three-dimensional structural schematic diagram of a pen clip assembly according to some embodiments of this application.

[0025] Figure 7 This is a cross-sectional view of a support frame connected to an adjustment plate according to some embodiments of this application.

[0026] Figure 8 This is a three-dimensional structural schematic diagram of a fastener according to some embodiments of this application.

[0027] Figure 9 This is a schematic diagram of the triggering component at the start position according to some embodiments of this application.

[0028] Figure 10 This is a schematic diagram of the slider and linkage of the trigger component in the start position according to some embodiments of this application.

[0029] Figure 11 This is a schematic diagram of the trigger component and pen clamping module in the start position according to some embodiments of this application.

[0030] Figure 12 This is a schematic diagram of the trigger component in the off position according to some embodiments of this application.

[0031] Figure 13 This is a schematic diagram of the slider and linkage of the trigger component in the closed position according to some embodiments of this application.

[0032] Figure 14 This is a schematic diagram of the linkage and pen clamping module of the trigger component in the closed position according to some embodiments of this application.

[0033] In the diagram: 1. Pen feeding mechanism; 10. Fixing component; 11. Base; 111. Cavity; 12. Guide groove; 13. Guide part; 20. Trigger assembly; 21. Start / stop component; 211. Protruding post; 22. Slider; 221. Main block; 2211. Slide groove; 222. Extension part; 223. Pen insertion gap; 23. Second reset component; 30. Adjustment plate; 31. Plate body; 32. Horizontal partition wall; 33. Stop wall; 331. Limiting groove; 34. Adjustment groove; 35. Guide groove; 36. Auxiliary groove; 361. Groove wall; 40. Linkage component; 41. Main body; 411. Drive end; 4111. Drive surface; 412. Driven end; 4121. Driven surface; 4122. Stop surface; 42. Protrusion; 50. Pen clamping module; 51. Pen clamping gap; 52. Pen clamping assembly; 521. First shaft section; 522. Impeller; 523. Roller; 524. Second shaft section; 525. Elastic element; 53. Support frame; 531. Main frame body; 5311. Receiving cavity; 532. Guide part; 533. Fitting part; 534. Auxiliary part; 5341. Auxiliary surface; 60. Worm gear. Detailed Implementation

[0034] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0035] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0036] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0037] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0038] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" 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, a contact connection, or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] A pen feeding mechanism 1, such as Figures 1-14 As shown, the device includes: a fixing member 10, a trigger assembly 20, an adjustment plate 30, several pen-clamping modules 50, and a linkage member 40. The fixing member 10 defines a central axis C. The trigger assembly 20 is mounted on the fixing member 10 and is adapted to move between a closed position and an activated position to turn the smart pencil sharpener on or off. The adjustment plate 30 is connected to the fixing member 10 and is adapted to rotate relative to the fixing member 10 about the central axis C. Several pen-clamping modules 50 are arranged circumferentially along the central axis C, and a pen-clamping gap 51 is defined between each pen-clamping module 50. The pen-clamping modules 50 are mounted on the fixing member 10 and are adapted to move radially along the fixing member 10; the pen-clamping modules 50 are movably connected to the adjustment plate 30. The linkage 40 is disposed between the trigger assembly 20 and the adjustment plate 30. When the trigger assembly 20 moves from the closed position to the activated position, the trigger assembly 20 is adapted to cause the adjustment plate 30 to rotate around the central axis C in the first direction P through the linkage 40, so that the pen clamping module 50 moves radially away from the central axis C relative to the fixing member 10, and the pen clamping gap 51 is expanded.

[0040] It should be understood that the pen clamping module 50 is adapted to move radially relative to the fixing member 10, thereby adjusting the size of the pen clamping gap 51 between the various pen clamping modules 50 so that the pen feeding mechanism 1 is adapted to clamp pencils of different diameters.

[0041] Furthermore, when the trigger component 20 moves from the closed position to the activated position, the trigger component 20 is adapted to cause the adjusting plate 30 to rotate around the central axis C in the first direction P via the linkage 40, so that the pen clamping module 50 moves radially away from the central axis C relative to the fixing member 10, thereby expanding the pen clamping gap 51 between each pen clamping module 50, which is beneficial to insert the pencil into the pen clamping gap 51 more effortlessly.

[0042] Without the linkage 40, the pen clamping gap 51 is at its minimum size when the pencil is inserted, requiring the pencil tip to press against the pen clamping module 50 to move it radially away from the central axis C relative to the fixing member 10, which is quite laborious. In this embodiment, by setting the linkage 40, while the pencil pushes the trigger component 20 to move towards the start position, the linkage 40 drives the adjustment plate 30 to rotate, causing the pen clamping module 50 to move radially away from the central axis C relative to the fixing member 10. This expands the pen clamping gap 51, so that when the pencil is inserted into the pen clamping gap 51, the size of the pen clamping gap 51 is larger than the minimum size, making it easier to insert the pencil into the pen clamping gap 51 with less effort.

[0043] In some embodiments, such as Figure 2 , Figure 10 , Figure 11 , Figure 13 and Figure 14 As shown, the linkage 40 is rotatably connected to the fixing member 10 to be adapted to rotate in the plane of the vertical central axis C. The linkage 40 includes a driving end 411 and a driven end 412 arranged opposite to each other. The driving end 411 is connected to the trigger assembly 20, and the driven end 412 is connected to the adjusting plate 30. When the trigger assembly 20 moves from the closed position to the start position, the trigger assembly 20 drives the linkage 40 to rotate, thereby driving the adjusting plate 30 to rotate around the central axis C in the first direction P.

[0044] It should be understood that the linkage 40 is rotatably connected to the fixed member 10, which makes the movement of the linkage 40 simpler and more controllable, thereby improving the reliability of the transmission between the trigger component 20, the linkage 40, and the adjusting plate 30. Furthermore, the rotation of the linkage 40 in the plane perpendicular to the central axis C helps to avoid the linkage 40 occupying too much space in the direction parallel to the central axis C, thus making the structure of the pen feeding mechanism 1 more compact and reducing the height of the intelligent pencil sharpener. It is worth mentioning that the connection between the driving end 411 and the trigger component 20, and the connection between the driven end 412 and the adjusting plate 30, include, but are not limited to, abutment, sliding hinge, etc., and this application does not impose specific limitations on these.

[0045] In other embodiments, the linkage 40 may also be slidably connected to the fixing member 10; or the driving end 411 of the linkage 40 may be hinged to the triggering component 20, and the driven end 412 may be hinged to the adjusting plate 30, that is, a linkage mechanism is formed between the triggering component 20, the linkage 40 and the adjusting plate 30; or the triggering component 20, the linkage 40 and the adjusting plate 30 may be meshed together, and this application does not impose specific limitations on this.

[0046] In some embodiments, such as Figure 2 and Figure 3As shown, the adjusting plate 30 includes a plate body 31 and a transverse partition 32 protruding and connected to the plate body 31; the linkage 40 includes a main body 41, the two opposite ends of the main body 41 are respectively defined as a driving end 411 and a driven end 412. The driving end 411 has a driving surface 4111 on the side facing the trigger assembly 20, and the driving surface 4111 is adapted to abut against the trigger assembly 20. The driven end 412 has a driven surface 4121 on the side facing the transverse partition 32, and the driven surface 4121 is adapted to abut against the transverse partition 32. When the trigger assembly 20 moves from the closed position to the activated position, the trigger assembly 20 drives the linkage 40 to rotate, so that the distance from the contact point of the transverse partition 32 and the driven surface 4121 to the rotation center of the linkage 40 changes, thereby driving the adjusting plate 30 to rotate around the central axis C in the first direction P.

[0047] It is understandable that the contact between the trigger component 20, the linkage component 40 and the adjustment plate 30 reduces the processing difficulty of the trigger component 20, the linkage component 40 and the adjustment plate 30, thereby helping to reduce the production cost of the pen feeding mechanism 1; in addition, it also helps to reduce the assembly difficulty and assembly accuracy of the pen feeding mechanism 1, thereby improving the production efficiency of the pen feeding mechanism 1.

[0048] It is worth mentioning that the linkage 40 abuts against the trigger component 20 through the driving surface 4111 and against the transverse partition 32 of the adjusting plate 30 through the driven surface 4121, thereby increasing the mating area between the linkage 40 and the trigger component 20 and the transverse partition 32. This helps to avoid transmission failure between the linkage 40 and the trigger component 20 and between the linkage 40 and the transverse partition 32, thereby improving the transmission reliability and stability of the pen feeding mechanism 1.

[0049] In some embodiments, the pen feeding mechanism 1 further includes a first reset member that elastically connects the adjusting plate 30 and the fixing member 10 to provide a force that drives the adjusting plate 30 to rotate about the central axis C in a second direction Q, so that the pen clamping module 50 moves radially relative to the fixing member 10 toward the central axis C, wherein the first direction P is opposite to the second direction Q. In at least one embodiment, the reset member is implemented as a torsion spring.

[0050] In at least one embodiment, when the trigger component 20 moves from the closed position to the activated position, the trigger component 20 drives the linkage 40 to rotate, thereby increasing the distance from the contact point between the transverse partition 32 and the driven surface 4121 to the rotation center of the linkage 40. That is, the pushing force of the linkage 40 on the adjusting plate 30 overcomes the force of the first reset component, causing the adjusting plate 30 to rotate about the central axis C in the first direction P. The pen clamping module 50 can then move radially away from the central axis C relative to the fixing member 10, thereby widening the pen clamping gap 51, which facilitates easier insertion of the pencil into the pen clamping gap 51. When the trigger component 20 moves from the activated position to the closed position, the external force of the trigger component 20 on the linkage 40 is removed. Under the force of the first reset component, the adjusting plate 30 rotates about the central axis C in the second direction Q, while simultaneously driving the linkage 40 to rotate in the opposite direction until the pen clamping module 50 is reset.

[0051] In at least one embodiment, when the trigger component 20 moves from the closed position to the activated position, the external force exerted by the trigger component 20 on the linkage 40 is removed, thereby reducing the distance from the contact point between the transverse partition 32 and the driven surface 4121 to the rotation center of the linkage 40. That is, the linkage 40 can avoid the adjusting plate 30, which rotates around the central axis C in the first direction P under the force of the first reset component. The pen-clamping module 50 can then move radially away from the central axis C relative to the fixing member 10, thereby widening the pen-clamping gap 51, which facilitates easier insertion of the pencil into the gap. When the trigger component 20 moves from the activated position to the closed position, the trigger component 20 drives the linkage 40 to rotate. The pushing force of the linkage 40 on the adjusting plate 30 overcomes the force of the first reset component, driving the adjusting plate 30 to rotate around the central axis C in the second direction Q until the pen-clamping module 50 is reset.

[0052] In some embodiments, such as Figures 1-3 As shown, the adjusting plate 30 also has a stop wall 33, which protrudes and is connected to the plate body 31 and is spaced apart from the transverse partition wall 32 along the circumference of the adjusting plate 30. A limiting groove 331 is defined between the stop wall 33 and the transverse partition wall 32. The linkage member 40 also includes a protrusion 42, which is connected to the driven end 412 and extends into the limiting groove 331. The side of the protrusion 42 and the main body 41 facing the transverse partition wall 32 defines the driven surface 4121. The side of the protrusion 42 facing the stop wall 33 is provided with a stop surface 4122, which is adapted to abut against the stop wall 33.

[0053] It can be understood that the protrusion 42 and the main body 41 are coplanar on the side facing the transverse partition 32, which helps to extend the length of the contact line between the linkage 40 and the transverse partition 32, or increase the contact area between the linkage 40 and the transverse partition 32, thereby improving the reliability of force transmission and extending the service life of the linkage 40. Furthermore, the protrusion 42 extends into the limiting groove 331, that is, the protrusion 42 is limited between the transverse partition 32 and the stop wall 33, which helps to prevent the linkage 40 and the adjusting plate 30 from disengaging and causing transmission failure, thereby further improving the connection reliability and transmission reliability of the linkage 40 and the adjusting plate 30.

[0054] In at least one embodiment, when the trigger component 20 is in the closed position, the stop surface 4122 of the linkage 40 abuts against the stop wall 33 of the adjusting plate 30, while the driven surface 4121 and the transverse partition 32 are kept at a distance. That is, when the trigger component 20 moves from the closed position to the activated position, the trigger component 20 needs to move a certain distance so that the linkage 40 rotates through a certain angle before abutting against the transverse partition 32, which helps to avoid accidental activation.

[0055] Furthermore, when the trigger component 20 moves from the start position to the stop position, the external force of the trigger component 20 on the linkage 40 is removed. Under the action of the first reset component, the adjustment plate 30 rotates around the central axis C in the second direction Q. At the same time, the adjustment plate 30 drives the linkage 40 to rotate in the opposite direction. It should be understood that at this time, the driven surface 4121 of the linkage 40 abuts against the transverse partition 32, and the stop surface 4122 and the stop wall 33 are kept at a distance. This helps to avoid interference between the linkage 40 and the adjustment plate 30, so that the adjustment plate 30 can rotate around the central axis C in the second direction Q until the pen clamp module 50 is reset.

[0056] In some embodiments, such as Figure 1 As shown, the trigger component 20 includes a start / stop element 21 and a pair of sliders 22. The start / stop element 21 is adapted to move between a closed position and an activated position along the X direction. The two sliders 22 are symmetrically connected to the start / stop element 21 relative to the X direction, defining a pen insertion gap 223 between the two sliders 22. Specifically, when the pen insertion gap 223 widens and the two sliders 22 move in opposite directions along the Y direction, the start / stop element 21 can move towards the activated position to turn on the intelligent pencil sharpener. At least one slider 22 can cause the adjustment plate 30 to rotate around the central axis C along the first direction P via the linkage 40, wherein the X direction, Y direction, and central axis C are perpendicular to each other.

[0057] In at least one embodiment, such as Figure 4As shown, the slider 22 includes a main block 221 and a groove 2211 formed in the main block 221. The groove 2211 extends in a plane perpendicular to the central axis C and is set at an angle with the X and Y directions. The start / stop member 21 is provided with a protrusion 211, which extends into the groove 2211 and is adapted to move along the groove 2211. Thus, through the cooperation of the protrusion 211 and the groove 2211, under the condition that the two sliders 22 move in opposite directions or towards each other in the Y direction, the start / stop member 21 can move towards the start position or towards the stop position in the X direction.

[0058] Furthermore, such as Figure 4 and Figure 10 As shown, one of the sliders 22 also includes an extension 222, which is connected to the main block 221 and extends toward the linkage 40 along the central axis C, so as to abut against the driving surface 4111 of the linkage 40.

[0059] Furthermore, such as Figure 9 and Figure 12 As shown, the trigger component 20 also includes a second reset member 23, which is disposed between the start / stop member 21 and the fixing member 10. The second reset member 23 is adapted to move the start / stop member 21 from the start position to the stop position along the X direction, thereby disconnecting the circuit of the intelligent pencil sharpener's switch. It is worth mentioning that the start / stop member 21 can drive the two sliders 22 to move towards each other, thereby reducing the pencil insertion gap 223. At the same time, the force exerted by the sliders 22 on the linkage member 40 is removed.

[0060] In some embodiments, such as Figure 3 , Figure 10 , Figure 11 , Figure 13 and Figure 14 As shown, the plate body 31 of the adjustment plate 30 has several rotationally symmetrically distributed adjustment grooves 34. One end of the adjustment groove 34 is set close to the central axis C, and the other end of the adjustment groove 34 is set away from the central axis C. The two ends of the adjustment groove 34 are offset along the circumference. The pen clamping module 50 is connected to the adjustment groove 34 to facilitate sliding along the adjustment groove 34.

[0061] In some embodiments, such as Figure 5 and Figure 6 As shown, the pen clamping module 50 includes a pen clamping assembly 52 and a support frame 53. The pen clamping assembly 52 is rotatably connected to the support frame 53 about its own axis, and a pen clamping gap 51 is formed between each pen clamping assembly 52. ​​The support frame 53 is radially movable and connected to the fixing member 10. The support frame 53 is slidably connected to the adjusting plate 30 along the adjusting groove 34. Under the condition that the adjusting plate 30 rotates about the central axis C, the support frame 53 is adapted to move radially relative to the fixing member 10 to adjust the size of the pen clamping gap 51.

[0062] Specifically, such as Figure 5 As shown, the support frame 53 includes a main frame 531 and a mating part 533 connected to the main frame 531. The main frame 531 has a receiving cavity 5311 for accommodating the pen clamping assembly 52. ​​That is, the pen clamping assembly 52 is rotatably connected to the main frame 531 and housed in the receiving cavity 5311, which helps to make the structure of the pen feeding mechanism 1 more compact.

[0063] Furthermore, such as Figure 5 and Figure 7 As shown, the mating part 533 protrudes from the top surface of the main frame 531 along the central axis C, and extends into the adjusting groove 34 to allow the support frame 53 to slide along the adjusting groove 34. It should be understood that, under the condition that the adjusting plate 30 rotates relative to the fixing member 10 about the central axis C, the relative movement between the mating part 533 and the adjusting groove 34 drives the support frame 53 to move radially relative to the fixing member 10.

[0064] In some embodiments, such as Figure 3 , Figure 5 and Figure 7 As shown, the plate body 31 of the adjustment plate 30 is also provided with a plurality of auxiliary grooves 36 arranged in the circumferential direction; the pen clamping module 50 also includes an auxiliary part 534, which extends into the auxiliary groove 36. The auxiliary part 534 is adapted to move radially and circumferentially relative to the auxiliary groove 36. The auxiliary part 534 has an auxiliary surface 5341, which is adapted to abut against the groove wall 361 of the auxiliary groove 36 to withstand radial and circumferential forces, thereby improving the force transmission reliability between the adjustment plate 30 and the pen clamping module 50.

[0065] In at least one embodiment, such as Figure 7 As shown, the auxiliary groove 36 is opened on the outer edge of the plate 31 of the adjustment plate 30, and the auxiliary part 534 is set on the side of the support frame 53 away from the central axis C. This helps to increase the distance from the contact point of the groove wall 361 and the auxiliary surface 5341 of the auxiliary groove 36 to the central axis C, that is, it helps to increase the torque of the interaction force between the groove wall 361 and the auxiliary surface 5341 to the central axis C. Under the condition that the pencil squeezing clamp module 50 moves radially away from the central axis C, the adjustment plate 30 can be driven to rotate around the central axis C in the first direction P with less effort, and the pencil can be inserted into the pencil feeding mechanism 1 with less effort.

[0066] In some embodiments, such as Figure 5 and Figure 8As shown, the fixing member 10 includes a base 11 and a guide groove 12. The base 11 has several communicating cavities 111, which can accommodate the pen-clamping module 50, making the structure of the pen feeding mechanism 1 more compact and reducing the size of the pen feeding mechanism 1 along the central axis C, thereby reducing the height of the intelligent pen sharpener. It is worth mentioning that the fixing member 10 surrounds the outer periphery of the pen-clamping module 50, which can protect the pen-clamping module 50 and at the same time help to avoid interference between other parts of the intelligent pen sharpener and the pen-clamping module 50, thereby improving the reliability of the pen feeding mechanism 1. Furthermore, the guide groove 12 is formed in the base 11 and extends radially along the fixing member 10; the pen-clamping module 50 has a protruding guide portion 532, which is fitted and adapted to the guide groove 12 so that the pen-clamping module 50 can move radially relative to the fixing member 10.

[0067] In at least one embodiment, such as Figure 5 and Figure 8 As shown, each of the two opposing inner sidewalls of the cavity 111 has a guide groove 12, which is connected to the cavity 111, thus reducing manufacturing difficulty. Each of the two opposing outer sidewalls of the support frame 53 of the pen clip module 50 has a guide portion 532, which is respectively installed and adapted to the two guide grooves 12. In other words, the support frame 53 is connected to the fixing member 10 in a pull-out structure, which improves the reliability of the coordinated movement of the support frame 53 and the fixing member 10, and allows for a more uniform distribution of the interaction force between the support frame 53 and the fixing member 10, thus balancing the force on the support frame 53 and extending its service life.

[0068] In some embodiments, such as Figure 3 and Figure 7 As shown, the plate body 31 of the adjusting plate 30 has three circumferentially distributed guide grooves 35, and the imaginary lines extending from the three guide grooves 35 are concentric. Correspondingly, the fixing member 10 also includes three guide portions 13 connected to the base 11. The guide portions 13 protrude from the top surface of the base 11 along the central axis C, and are respectively fitted to the three guide grooves 35 of the adjusting plate 30, so that the adjusting plate 30 is suitable for rotating relative to the fixing member 10 around the central axis C. It should be understood that the cooperation of multiple pairs of guide grooves 35 and guide portions 13 improves the reliability of the coordinated movement of the adjusting plate 30 and the fixing member 10, and makes the distribution of the interaction force between the adjusting plate 30 and the fixing member 10 more uniform, thus balancing the forces on the adjusting plate 30 and extending its service life.

[0069] In some embodiments, such as Figure 1As shown, the pen feeding mechanism 1 also includes a worm gear 60, which is located below the pen clamping module 50, so that the pen clamping module 50 is pressed between the fixing member 10 and the worm gear 60 along the central axis C. Further, as... Figure 6 As shown, the pen clamping assembly 52 includes a first shaft segment 521, an impeller 522, a roller 523, and a second shaft segment 524 arranged sequentially along the axial direction of the pen clamping assembly 52. ​​The first shaft segment 521 and the second shaft segment 524 are rotatably connected to the support frame 53 so that the pen clamping assembly 52 is mounted on the support frame 53. The impeller 522 can mesh with the worm gear 60 to drive the pen clamping assembly 52 to rotate, thereby realizing the insertion or removal of the pen. Furthermore, the pen clamping assembly 52 also includes an elastic element 525, which is sleeved on the second shaft segment 524. The elastic element 525 and the roller 523 are arranged axially, so that the roller 523 is suitable for axial movement to adjust the position and size of the pen clamping gap 51, which is beneficial for more stable and reliable pen clamping.

[0070] The working principle of pen feeding mechanism 1 is as follows.

[0071] like Figures 9-11 As shown, when the pencil is inserted into the pencil gap 223 between the two sliders 22, the pencil can squeeze the sliders 22, causing the two sliders 22 to move away from each other in the Y direction. At the same time, the sliders 22 can drive the start / stop component 21 to move towards the start position, thereby enabling the switch of the intelligent pencil sharpener to connect the circuit. Furthermore, at least one of the sliders 22 can drive the linkage component 40 to rotate, so that the adjustment plate 30 rotates around the central axis C in the first direction P through the linkage component 40, causing the pencil clamping module 50 to move radially away from the central axis C relative to the fixing component 10. The pencil clamping gap 51 is widened, so that when the pencil is inserted into the pencil clamping gap 51, the size of the pencil clamping gap 51 is larger than the minimum size, which makes it easier to insert the pencil into the pencil clamping gap 51 with less effort.

[0072] Furthermore, with the pencil inserted into the clamping gap 51, the pencil abuts against each clamping module 50. The clamping module 50, in conjunction with the adjusting groove 34, drives the adjusting plate 30 to rotate further around the central axis C in the first direction P. This allows each clamping module 50 to move radially away from the central axis C, thereby increasing the size of the clamping gap 51 to accommodate pencils of different diameters. Simultaneously, the first resetting member provides a force to drive the adjusting plate 30 to rotate around the central axis C in the second direction Q, giving the adjusting plate 30 a tendency to rotate around the central axis C in the second direction Q. Furthermore, the adjusting groove 34, in conjunction with the clamping module 50, gives the clamping module 50 a tendency to move radially toward the central axis C, thus reliably clamping the pencil between the clamping modules 50 to achieve pencil insertion or retraction.

[0073] This should be understandable, such as Figures 12-14As shown, under the condition that the external force is removed, such as when the pencil is pulled out, the first reset member drives the adjustment plate 30 to rotate around the central axis C in the second direction Q. Furthermore, through the cooperation of the adjustment groove 34 with the pencil clamping module 50, the pencil clamping module 50 moves radially toward the central axis C, thereby reducing the size of the pencil clamping gap 51 to accommodate thinner pencils. Simultaneously, the second reset member 23 moves the start / stop member 21 to the closed position in the X direction, thereby disconnecting the circuit of the intelligent pencil sharpener's switch. The start / stop member 21 then drives the two sliders 22 to move towards each other in the Y direction, removing the force exerted by the sliders 22 on the linkage member 40. The first reset member then further drives the adjustment plate 30 to rotate around the central axis C in the second direction Q until the pencil clamping module 50 is reset.

[0074] A smart pencil sharpener includes: the aforementioned pencil feeding mechanism 1, a blade holder, a drive assembly, and a switch. The blade holder is located below the pencil feeding mechanism 1 and is used to cut pencils. The drive assembly is connected to the blade holder and drives the blade holder to rotate. The switch is connected to a trigger assembly 20 of the pencil feeding mechanism 1. When the trigger assembly 20 is in the start or stop position, the switch can connect or disconnect the circuit to turn the smart pencil sharpener on or off.

[0075] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A pen feed mechanism characterized by comprising: The utility model relates to a pen feeding mechanism of intelligent pen sharpener, comprising: a fixing part defining a central axis; a trigger assembly mounted on the fixing part, the trigger assembly being adapted to move between a closed position and an activated position to close or open the intelligent pen sharpener; an adjusting plate connected to the fixing part, the adjusting plate being adapted to rotate about the central axis relative to the fixing part; a plurality of pen clamping modules arranged along the circumference of the central axis, the pen clamping modules being mounted on the fixing part and adapted to move radially along the fixing part, the pen clamping modules being movably connected to the adjusting plate; a linkage arranged between the trigger assembly and the adjusting plate, the trigger assembly being adapted to rotate the adjusting plate about the central axis in a first direction through the linkage when the trigger assembly moves from the closed position to the activated position, so as to move the pen clamping modules radially away from the central axis relative to the fixing part.

2. The pen delivery mechanism according to claim 1, characterized by The linkage is rotatably connected to the fixing part to be adapted to rotate in a plane perpendicular to the central axis, the linkage comprising oppositely arranged driving and driven ends, the driving end being connected to the trigger assembly, and the driven end being connected to the adjusting plate, the trigger assembly driving the linkage to rotate when the trigger assembly moves from the closed position to the activated position, so as to drive the adjusting plate to rotate about the central axis in the first direction.

3. The pen delivery mechanism of claim 2, wherein The adjusting plate comprises a plate body and a transverse partition wall protruding from the plate body, and the linkage comprises a main body portion, opposite ends of the main body portion defining the driving and driven ends, the driving end being provided with a driving surface on a side facing the trigger assembly, the driving surface being adapted to abut against the trigger assembly, the driven end being provided with a driven surface on a side facing the transverse partition wall, the driven surface being adapted to abut against the transverse partition wall, the trigger assembly driving the linkage to rotate when the trigger assembly moves from the closed position to the activated position, so as to change the distance from the contact point between the transverse partition wall and the driven surface to the rotation center of the linkage, and drive the adjusting plate to rotate about the central axis in the first direction.

4. The pen delivery mechanism of claim 3, wherein The adjusting plate further comprises a stop wall protruding from the plate body and arranged along the circumference of the adjusting plate to be spaced apart from the transverse partition wall, a limiting groove being defined between the stop wall and the transverse partition wall, the linkage further comprises a protruding portion connected to the driven end and extending into the limiting groove, the protruding portion and the side of the main body portion facing the transverse partition wall defining the driven surface, and the protruding portion being provided with a stop surface on a side facing the stop wall, the stop surface being adapted to abut against the stop wall.

5. The pen delivery mechanism according to any one of claims 1 to 4, wherein The pen feeding mechanism further comprises a first reset member elastically connecting the adjusting plate and the fixing part to provide a force for driving the adjusting plate to rotate about the central axis in a second direction, so as to move the pen clamping modules radially towards the central axis relative to the fixing part, wherein the first direction is opposite to the second direction.

6. The pen delivery mechanism according to any one of claims 1 to 4, wherein The adjusting plate is also provided with a plurality of rotationally symmetrical adjusting grooves, one end of the adjusting groove is arranged close to the central axis, the other end of the adjusting groove is arranged away from the central axis, the two ends of the adjusting groove are arranged in a circumferential direction, and the pencil clamping module is connected to the adjusting groove to be adapted to slide along the adjusting groove.

7. The pen delivery mechanism according to any one of claims 1 to 4, wherein The fixing member includes a base and a guide groove, the base is provided with a plurality of communicating cavities for accommodating the pencil clamping module, the guide groove is arranged on the base and extends in a radial direction of the fixing member, and the pencil clamping module is provided with a protruding guide part which is adapted to the guide groove to enable the pencil clamping module to move radially relative to the fixing member.

8. The pen delivery mechanism of claim 7, wherein The adjusting plate is also provided with a plurality of circumferential auxiliary grooves, and the pencil clamping module further includes an auxiliary part which extends into the auxiliary groove and is adapted to move radially and circumferentially relative to the auxiliary groove, and the auxiliary part is provided with an auxiliary surface which is adapted to abut against a groove wall of the auxiliary groove to bear the radial and circumferential forces.

9. The pen delivery mechanism according to any one of claims 1 to 4, wherein The trigger assembly includes a start-stop member adapted to move in an X direction between a closed position and a starting position, and a pair of sliders connected to the start-stop member in a symmetrical manner relative to the X direction and defining a pencil inserting gap between the two sliders, under the condition that the pencil inserting gap is enlarged and the two sliders move away from each other in a Y direction, the start-stop member is moved to the starting position to start the intelligent pencil sharpener, and at least one of the sliders is adapted to rotate the adjusting plate in a first direction about the central axis through the linkage, wherein the X direction, the Y direction and the central axis are perpendicular to each other.

10. A smart pencil sharpener, characterized by, The intelligent pencil sharpener includes: The pencil feeding mechanism according to any one of claims 1-9; A cutter holder arranged below the pencil feeding mechanism to cut the pencil; A driving assembly connected to the cutter holder to drive the cutter holder to rotate; A switch member connected to the trigger assembly of the pencil feeding mechanism, under the condition that the trigger assembly is in the starting position or the closed position, the switch member is adapted to turn on or off the circuit to start or stop the intelligent pencil sharpener.

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