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 supporting piece, the supporting piece defines a central axis, the supporting piece is covered with a cover body, the cover body and the supporting piece define a containing cavity, and the cover body is provided with an abutting part; the multiple pencil clamping assemblies are arranged in the containing cavity in the circumferential direction around the central axis, and the pencil clamping assemblies are suitable for moving in the radial direction relative to the central axis so as to clamp pencils; the synchronizing part is rotationally connected with the pen clamping assemblies so as to provide acting force for driving the pen clamping assemblies to move towards the radial direction of the central axis; the touch piece is arranged on one side, far away from the supporting piece, of the cover body in a sliding manner; the locking piece is installed on the synchronizing piece in a sliding mode, and when the touch piece slides away from the central axis, the locking piece abuts against the abutting portion, so that the rotating angle of the synchronizing piece is limited, the resistance needing to be overcome when a user inserts a pen is greatly reduced, and more labor is saved in the using process.

Description

Technical Field

[0001] This invention relates to the field of intelligent pencil sharpeners, specifically to a pencil feeding mechanism and its intelligent pencil sharpener. 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. In order to accommodate pencils of different diameters, the feeding mechanism of a smart pencil sharpener can expand or converge as the pencil is inserted into the sharpener. The feeding mechanism expands as the user inserts the pencil into the sharpener, but this operation is inconvenient for children with less strength. Users with less strength may not be able to fully insert the pencil into the sharpener, making it very inconvenient during use. Summary of the Invention

[0004] One objective of this application is to provide a pen feeding mechanism that allows even children with limited strength to use it independently, making it convenient for children to operate.

[0005] Another objective of this application is to provide an intelligent pencil sharpener having the aforementioned pencil feeding mechanism, so that the intelligent pencil sharpener is suitable for cutting pencils of different diameters, enabling even children with limited strength to use it independently and improving the user's actual experience.

[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 support member defining a central axis and covered with a cover, the cover and the support member defining a receiving cavity, the cover having an abutment portion; a plurality of pen clamping assemblies, the plurality of pen clamping assemblies being circumferentially disposed within the receiving cavity around the central axis, the pen clamping assemblies being adapted to move radially relative to the central axis to clamp a pencil; a synchronizing member rotatably connected to the pen clamping assemblies to provide a force driving each of the pen clamping assemblies to move radially toward the central axis; an actuating member slidably mounted on the side of the cover away from the support member; and a locking member slidably mounted on the synchronizing member, the locking member abutting against the abutment portion when the actuating member slides away from the central axis.

[0007] As a preferred embodiment, the cover has an opening, and the edge of the opening near the central axis has several steps along the first plane of the cover, the steps forming the abutment portion. When the actuating member slides away from the central axis, the synchronizing member rotates around the central axis, causing the locking member to rotate and abut against the abutment portion. The first plane is a plane perpendicular to the central axis.

[0008] As a preferred embodiment, the synchronizing member is provided with a first guide portion, the locking member is provided with a mating portion, and the mating portion extends along the central axis direction. The mating portions are close to each other and engage with the first guide portion, so that the locking member can slide back and forth along the extension direction of the first guide portion.

[0009] As a preferred embodiment, the mating part is further provided with an abutting protrusion, and the first guide part is provided with an embedding groove that cooperates with the abutting protrusion. When the mating part and the first guide part are engaged with each other, the abutting protrusion is located in the embedding groove.

[0010] As a preferred embodiment, the locking member is further provided with a first reset member and a first mounting surface, the synchronizing member is provided with a protrusion, the protrusion is provided with a second mounting surface opposite to the first mounting surface, the first reset member is deformably disposed between the first mounting surface and the second mounting surface, when the locking member slides away from the central axis, the first mounting surface and the second mounting surface move closer to each other and squeeze the first reset member.

[0011] As a preferred embodiment, a second guide portion is provided between the first mounting surface and the second mounting surface, and the first reset member is sleeved on the second guide portion.

[0012] As a preferred embodiment, one end of the second guide portion is fixed to the first mounting surface, the protrusion is provided with a mounting groove, and the other end of the second guide portion is slidably mounted in the mounting groove.

[0013] As a preferred embodiment, the cover is provided with a guide slide, the actuator is slidably installed in the guide slide, and the guide slide has limiting protrusions on both sides to restrict the actuator from sliding back and forth along the guide slide.

[0014] As a preferred embodiment, the pen feeding mechanism further includes a second reset member, which elastically connects the synchronizing member and the supporting member, and provides a force to drive the synchronizing member to rotate about the central axis.

[0015] To achieve at least one of the above objectives, the technical solution adopted in this application is: an intelligent pencil sharpener, including the aforementioned pencil feeding mechanism. Attached Figure Description

[0016] Figure 1 This is an exploded view of the pen feeding mechanism according to some embodiments of this application;

[0017] Figure 2 This is a first structural schematic diagram of a pen feeding mechanism according to some embodiments of this application;

[0018] Figure 3 This is a second structural schematic diagram of a pen feeding mechanism according to some embodiments of this application;

[0019] Figure 4 This is a schematic diagram of the structure of the cover according to some embodiments of this application;

[0020] Figure 5 This is a schematic diagram of the structure in which the synchronizing element and the locking element cooperate with each other according to some embodiments of this application;

[0021] Figure 6 This is a schematic diagram of the structure of a locking member according to some embodiments of this application;

[0022] Figure 7 This is a first-view structural schematic diagram of a synchronization element according to some embodiments of this application;

[0023] Figure 8 yes Figure 7 A magnified view of region A in the middle;

[0024] Figure 9 This is a structural schematic diagram from a second perspective of a synchronization element according to some embodiments of this application;

[0025] Figure 10 yes Figure 9 A magnified view of region B in the middle;

[0026] Figure 11 This is a third structural schematic diagram of a pen feeding mechanism according to some embodiments of this application;

[0027] Figure 12 This is a schematic diagram of the pen clamp assembly according to some embodiments of this application;

[0028] Figure 13 This is a schematic diagram of the structure of a pen clip assembly according to some embodiments of this application;

[0029] Figure 14 This is a schematic diagram of the worm gear structure according to some embodiments of this application.

[0030] In the diagram: 1. Pen feeding mechanism; 10. Support component; 20. Cover; 21. Opening; 211. Abutment part; 22. Guide slide; 221. Limiting protrusion; 30. Synchronizing component; 31. First guide part; 311. Embedded groove; 32. Protrusion; 322. Mounting groove; 40. Actuating component; 50. Locking component; 51. Mating part; 511. Abutment protrusion; 52. First reset component; 53. First mounting surface; 54. Second guide part; 60. Second reset component; 70. Pen clamping assembly; 71. Pen clamping gap; 72. Rotating component; 721. Impeller; 73. Bracket; 80. Worm gear. Detailed Implementation

[0031] The present invention will now be further described in conjunction with 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.

[0032] In the description of this invention, it should be noted that 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 invention 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 invention.

[0033] 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.

[0034] 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.

[0035] In the description of this invention, it should also be noted that, unless otherwise explicitly 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 invention according to the specific circumstances.

[0036] In existing technology, when using a pencil sharpener, the user needs to forcefully insert the pencil into the sharpener. During the process of inserting the pencil, the clamping device inside the sharpener is expanded by external force, allowing the pencil to be inserted and sharpened. However, for children, the process of inserting the pencil requires a lot of force, making it impossible for children to use the sharpener independently. This causes great inconvenience to users in actual use.

[0037] Therefore, based on the above analysis, this application provides a pen feeding mechanism 1 and its intelligent pen sharpener, optimizing the internal structure of the pen feeding mechanism 1 so that even children with less strength can use it independently, making it more convenient and effortless to use.

[0038] In some embodiments, as shown in the appendix Figure 1 As shown, the pen feeding mechanism 1 includes: a support member 10, the support member 10 defining a central axis C, and a cover 20 covering the support member 10, the cover 20 defining a receiving cavity between the support member 10, and as shown... Figure 4 As shown, the cover 20 has a stop portion 211; a plurality of pen-clamping assemblies 70, which are circumferentially arranged in the receiving cavity around the central axis C, and the pen-clamping assemblies 70 are adapted to move radially relative to the central axis C to clamp the pencil; a synchronizing member 30, which is rotatably connected to the pen-clamping assemblies 70 to drive the individual pen-clamping assemblies 70 to move radially toward the central axis C; and an actuating member 40, such as... Figure 2 As shown, the actuating element 40 is slidably mounted on the side of the cover 20 away from the support element 10; the locking element 50 is slidably mounted on the synchronizing element 30, and when the actuating element 40 slides away from the central axis C, the locking element 50 abuts against the abutting part 211.

[0039] Specifically, such as Figure 1 As shown, the pencil clamping assembly 70 is circumferentially arranged around the central axis C, which can apply clamping force to the pencil evenly from all directions. By adopting a multi-point clamping method, the clamping stability is increased, which can adapt to pencils of different diameters, reduce shaking and loosening during the clamping process, and prevent the pencil lead from breaking due to shaking and loosening during the sharpening process.

[0040] It is worth mentioning that the pen clamping assembly 70 can move radially relative to the central axis C, so that the pen clamping assembly 70 can automatically adjust the clamping position according to the diameter of the pencil, thereby achieving precise clamping of the pencil. At the same time, the clamping position of the pen clamping assembly 70 can be adjusted according to the actual situation, making it more convenient to use.

[0041] In some embodiments, such as Figure 2 As shown, the actuating elements 40 are arranged in pairs. When no pencil is inserted into the pencil feeding mechanism 1, the actuating elements 40 are positioned opposite each other and abut against each other. At this time, the locking element 50 abuts against the end of the actuating element 40 away from the central axis C. When the user inserts a pencil into the pencil feeding mechanism 1, due to the process of inserting the pencil into the pencil feeding mechanism 1, such as... Figure 3 As shown, the actuating member 40, pushed by the pencil, slides away from the central axis C, pushing the locking member 50 to move. During the contact between the pencil and the clamping assembly 70, the synchronizing member 30 rotates along the first direction. This rotation causes the locking member 50 to rotate, thus abutting against the abutment part 211 to limit the rotation angle of the synchronizing member 30. It should be noted that when the synchronizing member 30 rotates, it causes the clamping assembly 70 to expand, allowing the pencil to be inserted into the clamping gap 71 between the clamping assemblies 70. Figure 12 As shown, the pen clamping assembly 70 has three sets, and the space between the pen clamping assemblies 70 forms a pen clamping gap 71. The larger the rotation angle of the synchronizing member 30, the larger the opening angle of the pen clamping assembly 70, and the larger the pen clamping gap 71, the more suitable it is for pencils with larger diameters.

[0042] In some embodiments, the cover 20 is provided with an opening 21. The edge of the opening 21 near the central axis C is provided with a plurality of steps along the first plane of the cover 20. The steps form an abutment portion 211. When the actuating member 40 slides away from the central axis C, the synchronizing member 30 rotates around the central axis C, causing the locking member 50 to rotate and abut against the abutment portion 211. The first plane is a plane perpendicular to the central axis C.

[0043] In some embodiments, such as Figure 4 As shown, several steps form abutment 211, providing a clear abutment position for locking member 50, making locking and unlocking actions more precise and reliable, and better restricting the movement direction of locking member 50. The first plane is perpendicular to the central axis C; that is, the first plane is the plane on which the cover 20 is located.

[0044] In some embodiments, the synchronizing member 30 is provided with a first guide portion 31, the locking member 50 is provided with a mating portion 51, and the mating portion 51 extends along the central axis C. The mating portions 51 approach each other and engage with the first guide portion 31, so that the locking member 50 can slide back and forth along the extending direction of the first guide portion 31.

[0045] Specifically, such as Figure 7 and Figure 8 As shown, where, Figure 8 yes Figure 7 An enlarged view of region A shows that the synchronizing element 30 has a radially arranged first guide portion 31, as shown in the image. Figure 6 As shown, the locking member 50 is provided with a mating part 51, which extends along the central axis C. When the locking member 50 is installed on the synchronizing member 30, the mating part 51 engages with the first guide part 31, causing the locking member 50 to slide along the first guide part 31, thus limiting the sliding direction of the locking member 50 and reducing sliding deviation. In other words, the mating part 51 is implemented as a pair of clamping arms, which are close to each other, so that the locking member 50 is always engaged with the synchronizing member 30 during the sliding process, effectively reducing loosening or shaking between components and improving the structural stability of the pen feeding mechanism 1.

[0046] In some embodiments, the mating part 51 is further provided with an abutment protrusion 511, and the first guide part 31 is provided with an embedding groove 311 that cooperates with the abutment protrusion 511. When the mating part 51 and the first guide part 31 are engaged with each other, the abutment protrusion 511 is provided in the embedding groove 311.

[0047] Specifically, such as Figure 6 As shown, the mating part 51 is provided with an abutment protrusion 511, and the abutment protrusion 511 is disposed opposite to each other; as Figure 9 and Figure 10 As shown, where, Figure 10 yes Figure 9 An enlarged view of region B shows that the first guide portion 31 is provided with an embedding groove 311, which is located on the side of the first guide portion 312 away from the cover 20, as shown below. Figure 10 As shown, when the mating part 51 and the first guide part 31 are engaged with each other, the abutment protrusion 511 is provided in the embedded groove 311 to restrict the movement of the mating part 51 along the central axis C, prevent the mating part 51 from disengaging from the first guide part 31, and increase the reliability and stability of the pen feeding mechanism 1.

[0048] In some embodiments, the locking member 50 is further provided with a first reset member 52 and a first mounting surface 53, and the synchronizing member 30 is provided with a protrusion 32. The protrusion 32 is provided with a second mounting surface opposite to the first mounting surface 53. The first reset member 52 is deformably disposed between the first mounting surface 53 and the second mounting surface. When the locking member 50 slides away from the central axis C, the first mounting surface 53 and the second mounting surface approach each other and squeeze the first reset member 52.

[0049] Specifically, such as Figure 1 As shown, the locking member 50 is provided with a first reset member 52, such as Figure 6As shown, the locking member 50 also has a first mounting surface 53, such as Figure 8 As shown, the synchronizing member 30 is provided with a protrusion 32, and the protrusion 32 has a second mounting surface that is disposed opposite to the first mounting surface 53, such as... Figure 5 As shown, when the first mounting surface 53 and the second mounting surface approach each other, the first reset member 52 is compressed and deformed, allowing the first reset member 52 to be stably subjected to force. When the user pulls out the pencil, the actuating member 40 returns to its initial position, that is, the position when the pencil is not inserted. The first reset member 52 extends, pushing the first mounting surface 53 away from the second mounting surface, causing the locking member 50 to disengage from the abutment 211, thus completing the reset.

[0050] In some embodiments, a second guide portion 54 is provided between the first mounting surface 53 and the second mounting surface, and the first reset member 52 is sleeved on the second guide portion 54.

[0051] Specifically, such as Figure 5 As shown, a second guide portion 54 is provided between the first mounting surface 53 and the second mounting surface. The first reset member 52 is sleeved on the second guide portion 54. The second guide portion 54 not only fixes the first reset member 52 between the first mounting surface 53 and the second mounting surface, but also provides stable support for the first reset member 52, ensuring that the first reset member 52 can deform evenly during the stress process and avoid local stress concentration.

[0052] In some embodiments, one end of the second guide portion 54 is fixed on the first mounting surface 53, the protrusion 32 is provided with a mounting groove 322, and the other end of the second guide portion 54 is slidably mounted in the mounting groove 322.

[0053] Specifically, such as Figure 6 As shown, one end of the second guide portion 54 is radially fixed to the first mounting surface 53, as... Figure 8 As shown, the protrusion 32 is provided with a mounting groove 322, and the other end of the second guide 54 is slidably disposed in the mounting groove 322. When the first mounting surface 53 and the second mounting surface approach each other or move away from each other, the second guide 54 slides back and forth along the mounting groove 322.

[0054] In some embodiments, the locking member 50 is a plastic part, the second guide portion 54 is separately disposed from the locking member 50, and the second guide portion 54 is then bonded to the first mounting surface 53 by adhesive bonding; or, the second guide portion 54 and the locking member 50 are an integral part, integrally injection molded.

[0055] In some embodiments, the cover 20 is provided with a guide slide 22, and the actuator 40 is slidably installed in the guide slide 22. Limiting protrusions 221 are provided on both sides of the guide slide 22 to limit the actuator 40 from sliding back and forth along the guide slide 22.

[0056] Specifically, such as Figure 4 As shown, the cover 20 has a guide slide 22 on the side away from the support member 10. The actuator 40 is slidably mounted on the guide slide 22. The guide slide 22 provides a clear sliding path for the actuator 40, ensuring that the actuator 40 can only slide back and forth in a predetermined direction. Through the constraint of the guide slide 22, the sliding of the actuator 40 is more stable and precise, avoiding the deviation of the sliding direction caused by external force or manufacturing error, thereby improving the motion accuracy of the pen feeding mechanism 1.

[0057] In some embodiments, the pen feeding mechanism 1 further includes a second reset member 60, which is elastically connected to the synchronizing member 30 and the support member 10, and the second reset member 60 provides a force to drive the synchronizing member 30 to rotate about the central axis C.

[0058] Specifically, such as Figure 11 As shown, the second reset member 60 elastically connects the synchronizing member 30 and the supporting member 10. When subjected to external force, such as when a thicker pencil is inserted between the pencil clamping assemblies 70, the pencil abuts against each pencil clamping assembly 70, thereby driving the synchronizing member 30 to rotate around the central axis C in the first direction. This allows each pencil clamping assembly 70 to move radially away from the central axis C, thereby increasing the size of the pencil clamping gap 71 and making it easier to insert the pencil into the pencil clamping gap 71.

[0059] At the same time, the second reset member 60 provides a force to drive the synchronizing member 30 to rotate about the central axis C in the second direction, so that the synchronizing member 30 has a tendency to rotate about the central axis C in the second direction, so that the pen clamping assembly 70 has a tendency to move radially toward the central axis C, thereby enabling the pencil to be reliably clamped between the various pen clamping assemblies 70 to achieve pen advance or retraction.

[0060] In some embodiments, when the external force is removed, such as when a thicker pencil is pulled out, the second reset member 60 can drive the synchronizing member 30 to rotate about the central axis C in a second direction, so that the pencil clamping assembly 70 moves radially toward the central axis C until the initial position, thereby reducing the size of the pencil clamping gap 71 to be suitable for clamping a thinner pencil.

[0061] Specifically, the second reset member 60 is implemented as a torsion spring; the first direction and the second direction are opposite directions, wherein the first direction is counterclockwise and the second direction is clockwise.

[0062] In some embodiments, the specific structure of the pen clip assembly 70 is as follows: Figure 13 As shown, the pen clamp assembly 70 includes a rotating member 72 and a bracket 73. The bracket 73 has an installation space, and the rotating member 72 is mounted within the installation space of the bracket 73. The rotating member 72 is also equipped with an impeller 721, and the impeller 721 has meshing teeth around its perimeter. Figure 14 As shown, the pen feeding mechanism 1 also includes a worm gear 80, which is located below the pen clamping assembly 70. When the rotating member 72 is mounted in the mounting space of the bracket 73, the meshing teeth around the impeller 721 mesh with the worm gear 80 to drive the pen clamping assembly 70 to rotate.

[0063] like Figure 12 As shown, each pen clamping assembly 70 is rotationally symmetrical about the central axis C, which helps to avoid positional interference caused by the impellers 721 of two adjacent pen clamping assemblies 70 being too close. The impellers 721 of each pen clamping assembly 70 are evenly distributed in the circumference, making the force on the worm gear 80 from the impellers 721 more uniform, making the force on the worm gear 80 more balanced, avoiding stress concentration, which helps to improve the service life of the worm gear 80 and improve the reliability of the meshing transmission between the worm gear 80 and each impeller 721.

[0064] In general, when subjected to external force, such as when a user inserts a pencil into the pencil clamping gap 71 between the pencil clamping assemblies 70, the pencil contacts the actuating member 40 before the user inserts the pencil. The actuating member 40 is pushed by the pencil and slides away from the central axis C. When the actuating member 40 slides, it pushes the locking member 50 to slide. At this time, the first reset member 52 is compressed, and the first reset member 52 is implemented as a spring. When the pencil is inserted into the pencil clamping gap 71, it will abut against the pencil clamping assembly 70, causing the synchronizing member 30 to rotate along the first direction. During the rotation of the synchronizing member 30, the locking member 50 and the abutting part 211 abut against each other, which limits the rotation angle of the synchronizing member 30 to a certain extent. When the synchronizing member 30 rotates, the second reset member 60 is deformed by the traction force. At the same time, the second reset member 60 also has the same contraction force. The pencil clamping assembly 70 clamps the pencil and inserts the pencil.

[0065] When the external force is removed, for example when the pencil is dislodged from the pencil clamp gap 71, the contractile force of the second reset member 60 drives the synchronizing member 30 to rotate in the second direction, causing the locking member 50 to disengage from the abutment 211. The first reset member 52 extends and pushes the locking member 50 to slide toward the central axis C. When the pencil is completely pulled out, the trigger member 40 returns to its initial position. The two trigger members 40 are symmetrically arranged and abut against each other.

[0066] The abutment part 211 is formed into multiple steps. The larger the diameter of the pencil, the greater the distance the locking member 50 is pushed, the greater the angle of rotation of the synchronizing member 30, and consequently the greater the angle of rotation of the locking member 50. The steps of the abutment part 211 can cooperate with the locking member 50 rotating at different angles. There can be multiple steps, and the steps are arranged around the central axis C to accommodate pencils of different sizes.

[0067] It is worth mentioning that the existing pen feeding device relies on the force of the user inserting the pen to stretch and deform the pressure spring, driving the pen clamping assembly 70 to move away from each other. When retracting the pen, it relies solely on the force of the spring contraction to reset, which makes it impossible for children with little strength to use independently. Therefore, this application optimizes the pen feeding mechanism 1. When the user inserts the pen, the actuating member 40 is pushed, and the locking member 50 slides due to the pushing force from the actuating member 40. The synchronizing member 30 drives the locking member 50 to rotate, and the locking member 50 abuts against the abutment 211, limiting the rotation angle of the synchronizing member 30. During this process, the second reset member 60 deforms under force. When the synchronizing member 30 rotates, the second reset member 60 only needs to provide a small reaction force, greatly reducing the resistance that the user needs to overcome when inserting the pen. After the pen is sharpened, the second reset member 60 releases elastic potential energy, driving the synchronizing member 30 to rotate. The synchronizing member 30 drives the locking member 50 to rotate, thereby disengaging from the abutment 211 and completing the reset.

[0068] It is worth mentioning that the second reset member 60 is implemented as a compression spring. Compared with the absence of a locking member 50 and the reliance on a compression spring with greater elasticity to achieve pen feeding and retraction, the resistance that the pen feeding mechanism 1 provided in this application needs to overcome is reduced. Therefore, a compression spring with less elasticity can be selected, which not only saves more effort during use but also reduces the manufacturing cost of the pen feeding mechanism 1.

[0069] This application also provides an intelligent pencil sharpener, which includes the aforementioned pencil feeding mechanism 1, and therefore has all the beneficial effects of the above-mentioned technical solutions, which will not be repeated here.

[0070] The basic principles, main features, and advantages of this invention have been described above. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made without departing from the spirit and scope of the invention, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection claimed by this invention is defined by the appended claims and their equivalents.

Claims

1. A pen feed mechanism characterized by comprising: include: A support member, the support member defining a central axis, and a cover covering the support member, the cover and the support member defining a receiving cavity, the cover having an abutment portion; A plurality of pen-clamping assemblies are arranged circumferentially around the central axis within the receiving cavity, and the pen-clamping assemblies are adapted to move radially relative to the central axis to clamp a pencil. A synchronizing element, rotatably connected to the pen clamping assembly, provides a force that drives each of the pen clamping assemblies to move radially toward the central axis; An actuating element, which is slidably mounted on the side of the cover away from the support; A locking element is slidably mounted on the synchronizing element, and when the actuating element slides away from the central axis, the locking element abuts against the abutting part.

2. The pen feeding mechanism according to claim 1, characterized in that, The cover has an opening, and the edge of the opening near the central axis has several steps along the first plane of the cover. The steps form the abutment. When the actuating member slides away from the central axis, the synchronizing member rotates around the central axis, causing the locking member to rotate and abut against the abutment. The first plane is a plane perpendicular to the central axis.

3. The pen delivery mechanism of claim 1, wherein The synchronizing member is provided with a first guide portion, and the locking member is provided with a mating portion. The mating portions extend along the central axis and are close to each other, thereby engaging with the first guide portion and allowing the locking member to slide back and forth along the extension direction of the first guide portion.

4. The pen delivery mechanism of claim 3, wherein The mating part is further provided with abutting protrusion, and the first guide part is provided with an embedding groove that cooperates with the abutting protrusion. When the mating part and the first guide part are engaged with each other, the abutting protrusion is located in the embedding groove.

5. The pen delivery mechanism of claim 4, wherein The locking member is further provided with a first reset member and a first mounting surface. The synchronizing member is provided with a protrusion. The protrusion is provided with a second mounting surface opposite to the first mounting surface. The first reset member is deformably disposed between the first mounting surface and the second mounting surface. When the locking member slides away from the central axis, the first mounting surface and the second mounting surface approach each other and squeeze the first reset member.

6. The pen delivery mechanism of claim 5, wherein A second guide portion is provided between the first mounting surface and the second mounting surface, and the first reset member is sleeved on the second guide portion.

7. The pen delivery mechanism of claim 6, wherein One end of the second guide portion is fixed to the first mounting surface, the protrusion is provided with a mounting groove, and the other end of the second guide portion is slidably mounted in the mounting groove.

8. The pen feeding mechanism as described in claim 1, characterized in that, The cover is provided with a guide slide, and the actuating element is slidably installed in the guide slide. Limiting protrusions are provided on both sides of the guide slide to restrict the actuating element from sliding back and forth along the guide slide.

9. The pen delivery mechanism according to any one of claims 1 to 8, wherein The pen feeding mechanism further includes a second reset member, which elastically connects the synchronizing member and the supporting member, and provides a force to drive the synchronizing member to rotate about the central axis.

10. A smart pencil sharpener, characterized by, include: The pen feeding mechanism as described in any one of claims 1-9.

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