CN217455471U

CN217455471U - Pencil sharpener

Info

Publication number: CN217455471U
Application number: CN202122300113.1U
Authority: CN
Inventors: 厉家挺
Original assignee: Ningbo Yibai Children's Products Co ltd
Current assignee: Ningbo Yibai Children's Products Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-09-20
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a pencil sharpener, which comprises a knife rest, a locking sleeve and a handle, wherein the locking sleeve and the handle are sequentially sleeved outside the knife rest from left to right; the left part of the tool rest is provided with a pen inlet hole, the right part of the tool rest is connected with a sliding part in a sliding manner, the left end of the sliding part is provided with a push rod part which is used for abutting against a pen point positioned in the pen inlet hole, the handle is rotatably connected with a rotating wheel, the rotating wheel is circumferentially provided with a first limiting groove and a second limiting groove which are alternately embedded with the right end part of the sliding part, the distance from the groove bottom of the first limiting groove to the axis of the rotating wheel is smaller than the distance from the groove bottom of the second limiting groove to the axis of the rotating wheel, an elastic structure is arranged between the sliding part and the tool rest, and the elastic structure is used for applying elastic force to the sliding part to slide towards one side of the rotating wheel; the utility model discloses can cut out the nib of different thicknesses on the tip of pencil to can satisfy the user demand of user to the nib of different thicknesses.

Description

Pencil sharpener

Technical Field

The utility model relates to an office supplies technical field, concretely relates to sharpener.

Background

The pencil sharpener is a tool for sharpening a pencil, and when the pencil sharpener in the market is used at present, penpoints with different thicknesses cannot be sharpened on the end part of the pencil according to the requirements of a user, so that the pencil sharpener has the defect of single function.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a pencil sharpener, it can cut out the nib of different thicknesses on the tip of pencil in the use to can satisfy the user demand to the nib of different thicknesses.

The utility model discloses a pencil sharpener, including the knife rest, be used for with the lock sleeve of pencil sharpener casing coupling and be used for driving the handle of knife rest pivoted, lock sleeve and handle are established outside the knife rest from left to right side in proper order, the lock sleeve rotates with the knife rest to be connected, the handle is connected with the knife rest transmission; the left part of knife rest is provided with into a hole, the right part sliding connection of knife rest has the slider, the left end of slider is provided with the push rod portion that is arranged in with the nib counterbalance that is located into a hole, it is connected with the rotation wheel to rotate on the handle, it is used for with the first spacing groove of the alternative gomphosis of the right-hand member portion of slider and second spacing groove to rotate to take turns to go up circumference, the tank bottom of first spacing groove is less than the tank bottom of second spacing groove to the distance of the axis of rotation wheel to the tank bottom of rotation wheel, be provided with elastic construction between slider and the knife rest, elastic construction is used for exerting towards the gliding elasticity of rotation wheel one side to the slider.

The utility model discloses a pencil sharpener, wherein, be located and be provided with first spigot surface on the outer wall of the rotating wheel between first spacing groove and second spacing groove, when the rotating wheel rotated, first spigot surface was used for cooperating the direction with the right-hand member portion of slider in order to make things convenient for the right-hand member portion of slider to break away from first spacing groove after imbedding in the second spacing groove or in order to make things convenient for the right-hand member portion of slider to break away from second spacing groove after imbedding in the first spacing groove; through the setting of first spigot surface, rotating the in-process that rotates the wheel, first spigot surface can be with the right-hand member cooperation direction of slider in order to make things convenient for the right-hand member portion of slider to break away from imbed in the second spacing groove behind the first spacing groove or in order to make things convenient for the right-hand member portion of slider to break away from behind the second spacing groove imbed in the first spacing groove.

The utility model discloses a pencil sharpener, wherein, the right end of the sliding part is provided with a bulge which is alternatively embedded with the first limit groove and the second limit groove, and the end surface of the bulge facing to one side of the rotating wheel is an arc surface; through the setting of bulge, the right-hand member portion of slider can be in the same place with first spacing groove or second spacing groove gomphosis more easily, in addition, through set up the bulge towards the terminal surface of rotating wheel one side to the arcwall face after, at the in-process of rotating the wheel, the bulge can break away from behind the first spacing groove more easily and imbed in the second spacing groove or the bulge can break away from behind the second spacing groove more easily and imbed in the first spacing groove.

The utility model discloses a pencil sharpener, wherein, still be provided with on the perisporium of rotating wheel and be used for the butt against the portion of leaning on with the right-hand member of slider, the butt against the portion and the slider butt against the one end of leaning on to the distance of the axis of rotating wheel be greater than the tank bottom of second spacing groove to the distance of the axis of rotating wheel, when the rotating wheel was rotated so that butt against the portion and the right-hand member of slider when leaning on, push rod portion was used for pushing out the refill of splitting in advancing the hole outside advancing the hole; in the process that the pencil sharpener cuts the pencil, when the nib of pencil broke, through rotate the rotation wheel make the portion of leaning on the perisporium that is located the rotation wheel lean on the back with the right-hand member portion of slider, lie in the left push rod portion of slider and can further be close to into a hole, the distance between push rod portion and the hole of advancing promptly can further reduce, so, the push rod can be with the nib of fracture on the knife rest release outside the knife rest.

The utility model discloses a pencil sharpener, wherein, first spacing groove, second spacing groove and support portion distribute in proper order along the circumference direction of rotating the wheel, are provided with the second spigot surface on the outer wall of rotating the wheel between support portion and the second spacing groove, when support portion and the right-hand member of slider support and when the rotating the wheel is released, the second spigot surface is used for guiding with the right-hand member cooperation of slider so that the right-hand member of slider slides into the second spacing groove; by adopting the structure, when the rotating wheel rotates towards one direction, namely the right end part of the sliding part is sequentially abutted against the first limiting groove, the second limiting groove and the abutting part, the distance between the push rod and the pen inlet hole can be gradually reduced, when the rotating wheel rotates towards the other direction, namely the right end part of the sliding part is sequentially abutted against the abutting part, the second limiting groove and the first limiting groove, the distance between the push rod and the pen inlet hole can be gradually increased, namely after the structure is adopted, in the rotating process of the rotating wheel, the phenomenon that the distance between the push rod and the pen inlet hole is suddenly increased or suddenly reduced can be avoided, namely the distance between the push rod and the pen inlet hole can be smoothly increased and reduced; in addition, through the setting of second spigot surface, after rotating the running wheel so that the portion of leaning on supports with the right-hand member of slider and leans on, if the running wheel is released, the second spigot surface can be with the right-hand member cooperation direction of slider in order to make things convenient for the right-hand member of slider to slide in the second spacing groove.

The utility model discloses a pencil sharpener, wherein, the right-hand member of the handle is detachably connected with an end cover, the rotating wheel is rotatably connected with the end cover, the end cover is provided with an opening, and one part of the rotating wheel is exposed out of the end cover after passing through the opening; through the setting of end cover, the end cover can realize the reliable support to rotating the wheel, and rotates the wheel and can assemble reliably on the handle and rotate with the handle and be connected.

The utility model discloses a pencil sharpener, wherein, all be provided with the pivot on two terminal surfaces of rotating wheel, the axis of pivot and the axis coincidence of rotating wheel, be provided with the draw-in groove with each pivot one-to-one on the interior terminal surface of end cover, each pivot all cooperates the joint with the draw-in groove on the corresponding position, each pivot all is connected with the draw-in groove rotation on the corresponding position; by adopting the structure, the rotating wheel can be reliably and rotatably connected with the end cover.

The utility model discloses a pencil sharpener, wherein, be provided with the instruction arrow point on the outer terminal surface of end cover, be provided with first mark and second mark on the terminal surface of runner, when the right-hand member of slider was inlayed with first spacing groove, first mark was used for aligning with the instruction arrow point, when the right-hand member of slider was inlayed with second spacing groove, the second mark was used for aligning with the instruction arrow point; by adopting such a configuration, when the right end portion of the slider is engaged with the first stopper groove, the first mark can be aligned with the indication arrow, and thus the pencil sharpener can be instructed to sharpen the tip of the pencil at that time, and when the right end portion of the slider is engaged with the second stopper groove, the second mark can be aligned with the indication arrow, and thus the pencil sharpener can be instructed to sharper the tip of the pencil at that time, and the first mark is a mark symbol of a finer tip, and the second mark is a mark symbol of a coarser tip.

The pencil sharpener of the utility model is characterized in that the end surface of the rotating wheel is provided with a limiting column, when the right end part of the sliding part is abutted against the abutting part, the limiting column is abutted against the inner end surface of the end cover; through the setting of spacing post, rotating the wheel and being rotated and make the right-hand member portion of support portion and slider support and lean on the back, spacing post can support with the interior terminal surface of end cover and lean on, so, can avoid rotating the wheel excessive pivoted condition that appears, also can realize spacing the rotation of rotating the wheel, support the back because of the right-hand member portion that supports portion and slider, do not possess locking and spacing effect between the right-hand member portion of support portion and slider, consequently, the purpose that sets up spacing post is realized spacing the rotation of rotating the wheel.

The utility model discloses a pencil sharpener, wherein, the peripheral wall of the rotating wheel positioned outside the end cover is provided with a boss which is used for abutting against fingers so as to conveniently stir the rotating wheel; after the boss is arranged on the peripheral wall of the rotating wheel positioned outside the end cover, when the rotating wheel needs to be rotated, the boss only needs to be shifted, so that convenience can be brought to rotation of the rotating wheel.

The utility model discloses a pencil sharpener, wherein, the edge of the inner end of the end cover is provided with a plurality of grabs distributed circumferentially, the inner wall of the handle is provided with a clamping table corresponding to each grabs one by one, and each grabs is clamped with the clamping table on the corresponding position in a matching way; by adopting the structure, the end cover can be conveniently assembled with the handle.

The utility model discloses a pencil sharpener, wherein, the lateral wall of lock sleeve is provided with an open slot, when the handle drives the end cover to rotate relative to the lock sleeve, the open slot is used for aligning with a plurality of grabs alternatively, the open slot is used for the object to pass, the object is used for pushing the grabs after passing through the open slot so as to make the grabs break away from the clamping table; after the open slot is formed in the side wall of the locking sleeve, when the handle drives the end cover to rotate relative to the locking sleeve, the open slot can be aligned with the plurality of hooks alternately; when the open slot is aligned with the first hook, a rod object can penetrate through the open slot and push the first hook to enable the first hook to be separated from the corresponding clamping table, then the handle is continuously rotated to drive the end cover to rotate, when the open slot is aligned with the second hook, the rod object can penetrate through the open slot and push the second hook to enable the second hook to be separated from the corresponding clamping table, the steps are repeated until all the hooks are separated from the clamping tables at the corresponding positions, the end cover can be detached from the handle, and when the end cover is detached from the handle, cleaning or replacement of the sliding part and the rotating wheel can be achieved.

The utility model discloses a pencil sharpener, wherein, the elastic structure comprises a spring, the spring is sleeved outside the push rod part, and two ends of the spring are respectively abutted against the tool rest and the sliding part; through the setting of spring, the spring can apply towards the gliding elasticity trend of rotating wheel one side to the slider, can make the right-hand member portion of slider lean on with the rotating wheel all the time promptly, in addition, through adopting the spring as the part of elastic construction after, have elastic construction simple structure, the reliability is high and advantage with low costs.

The utility model discloses in the use, stir and rotate the wheel and can adjust the ejector pin portion and advance the interval between the hole, cut the ware promptly and carry out the process of cutting to the pencil, can adjust the degree of depth that the nib of pencil inserted in the knife rest, so, can make and cut out the nib of different thicknesses by the ware of cutting on the tip of pencil to can satisfy the user demand of user to the nib of different thicknesses.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic view of a first three-dimensional structure of the present invention;

fig. 2 is a schematic view of a second three-dimensional structure of the present invention;

fig. 3 is a third schematic perspective view of the present invention;

FIG. 4 is a schematic sectional view of the present invention;

FIG. 5 is a first partially exploded view of the present invention;

FIG. 6 is a second partially exploded view of the present invention;

fig. 7 is a perspective view of a rotating wheel with a boss.

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of various embodiments of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 4, in order to facilitate the description of the structure of the present invention, the side of the pen inlet 11 is defined as the left side, the left portion or the left end of the present invention, and the side of the end cover 6 is defined as the right side, the right portion or the right end of the present invention.

As shown in fig. 1-7, the pencil sharpener of the present invention comprises a pencil sharpener 1, a locking sleeve 2 for connecting with a pencil sharpener housing, and a handle 3 for driving the pencil sharpener 1 to rotate, wherein the locking sleeve 2 and the handle 3 are sequentially sleeved outside the pencil sharpener 1 from left to right, the locking sleeve 2 is rotatably connected with the pencil sharpener 1, and the handle 3 is in transmission connection with the pencil sharpener 1; the pen feeding hole 11 is formed in the left portion of the knife rest 1, the sliding piece 4 is connected to the right portion of the knife rest 1 in a sliding mode, a push rod portion 41 used for abutting against a pen point located in the pen feeding hole 11 is arranged at the left end of the sliding piece 4, the rotating wheel 5 is connected to the handle 3 in a rotating mode, a first limiting groove 51 and a second limiting groove 52 used for being alternately embedded with the right end portion of the sliding piece 4 are circumferentially arranged on the rotating wheel 5, the distance from the groove bottom of the first limiting groove 51 to the axis of the rotating wheel 5 is smaller than the distance from the groove bottom of the second limiting groove 52 to the axis of the rotating wheel 5, an elastic structure is arranged between the sliding piece 4 and the knife rest 1 and used for exerting elastic force, sliding towards one side of the rotating wheel 5, on the sliding piece 4.

A first guide surface 501 is arranged on the outer wall of the rotating wheel 5 between the first limiting groove 51 and the second limiting groove 52, and when the rotating wheel 5 rotates, the first guide surface 501 is used for being matched with the right end part of the sliding part 4 for guiding so as to facilitate the right end part of the sliding part 4 to be separated from the first limiting groove 51 and then embedded into the second limiting groove 52 or facilitate the right end part of the sliding part 4 to be separated from the second limiting groove 52 and then embedded into the first limiting groove 51; through the setting of first spigot surface, rotating the in-process that rotates the wheel, first spigot surface can be with the right-hand member cooperation direction of slider in order to make things convenient for the right-hand member portion of slider to break away from imbed in the second spacing groove behind the first spacing groove or in order to make things convenient for the right-hand member portion of slider to break away from behind the second spacing groove imbed in the first spacing groove.

The right end part of the sliding part 4 is provided with a convex part 42 which is alternately embedded with the first limiting groove 51 and the second limiting groove 52, and the end surface of one side of the convex part 42 facing the rotating wheel 5 is an arc surface; through the setting of bulge, the right-hand member portion of slider can more easily be in the same place with first spacing groove or second spacing groove gomphosis, in addition, through set up the bulge towards the terminal surface that rotates wheel one side to the arcwall face after, at the in-process that rotates the wheel, the bulge can break away from behind the first spacing groove more easily and imbed in the second spacing groove or the bulge can break away from behind the second spacing groove more easily and imbed in the first spacing groove.

The peripheral wall of the rotating wheel 5 is further provided with an abutting part 53 for abutting against the right end part of the sliding part 4, the distance from one end of the abutting part 53 abutting against the sliding part 4 to the axis of the rotating wheel 5 is greater than the distance from the groove bottom of the second limiting groove 52 to the axis of the rotating wheel 5, and when the rotating wheel 5 is rotated to enable the abutting part 53 to abut against the right end part of the sliding part 4, the push rod part 41 is used for pushing the pen core broken in the pen inlet hole 11 out of the pen inlet hole 11; in the process that the pencil sharpener cuts the pencil, when the nib of pencil broke, through rotate the rotation wheel make the portion of leaning on the perisporium that is located the rotation wheel lean on the back with the right-hand member portion of slider, lie in the left push rod portion of slider and can further be close to into a hole, the distance between push rod portion and the hole of advancing promptly can further reduce, so, the push rod can be with the nib of fracture on the knife rest release outside the knife rest.

The first limiting groove 51, the second limiting groove 52 and the abutting part 53 are sequentially distributed along the circumferential direction of the rotating wheel 5, a second guide surface 502 is arranged on the outer wall of the rotating wheel 5 between the abutting part 53 and the second limiting groove 52, and when the abutting part 53 abuts against the right end part of the sliding part 4 and the rotating wheel 5 is released, the second guide surface 502 is used for being matched with the right end part of the sliding part 4 for guiding so as to facilitate the right end part of the sliding part 4 to slide into the second limiting groove 52; by adopting the structure, when the rotating wheel rotates towards one direction, namely the right end part of the sliding part is sequentially abutted against the first limiting groove, the second limiting groove and the abutting part, the distance between the push rod and the pen inlet hole can be gradually reduced, and when the rotating wheel rotates towards the other direction, namely the right end part of the sliding part is sequentially abutted against the abutting part, the second limiting groove and the first limiting groove, the distance between the push rod and the pen inlet hole can be gradually increased, namely after the structure is adopted, in the rotating process of the rotating wheel, the phenomenon that the distance between the push rod and the pen inlet hole is suddenly increased or suddenly reduced can be avoided, namely the increase and reduction of the distance between the push rod and the pen inlet hole can be smoother; in addition, through the setting of second spigot surface, rotate the wheel so that the portion of leaning on supports with the right-hand member portion of slider and lean on the back, when rotating the wheel and being released, the second spigot surface can be with the right-hand member portion cooperation direction of slider in order to make things convenient for the right-hand member portion of slider to slide into the second spacing groove.

An end cover 6 is detachably connected to the right end of the handle 3, the rotating wheel 5 is rotatably connected with the end cover 6, an opening 61 is formed in the end cover 6, and a part of the rotating wheel 5 penetrates through the opening 61 and then is exposed out of the end cover 6; through the setting of end cover, the end cover can realize reliably supporting rotating wheel, and rotating wheel can assemble reliably on the handle and rotate with the handle and be connected.

The two end faces of the rotating wheel 5 are respectively provided with a rotating shaft 54, the axis of each rotating shaft 54 is superposed with the axis of the rotating wheel 5, the inner end face of the end cover 6 is provided with clamping grooves 62 which are in one-to-one correspondence with the rotating shafts 54, each rotating shaft 54 is matched and clamped with the clamping groove 62 in the corresponding position, and each rotating shaft 54 is rotatably connected with the clamping groove 62 in the corresponding position; by adopting the structure, the rotating wheel can be reliably and rotationally connected with the end cover.

An indication arrow 63 is provided on the outer end face of the end cap 6, a first mark 55 and a second mark 56 are provided on the end face of the rotating wheel 5, the first mark 55 is used for aligning with the indication arrow 63 when the right end portion of the slider 4 is engaged with the first limit groove 51, and the second mark 56 is used for aligning with the indication arrow 63 when the right end portion of the slider 4 is engaged with the second limit groove 52; with this configuration, when the right end portion of the slider is engaged with the first stopper groove, the first mark can be aligned with the indication arrow, and thus the pencil sharpener can be indicated to be able to sharpen the tip of the pencil at this time, and when the right end portion of the slider is engaged with the second stopper groove, the second mark can be aligned with the indication arrow, and thus the pencil sharpener can be indicated to be able to sharpen the tip of the pencil at this time, and the first mark is a mark symbol for a relatively thin tip, and the second mark is a mark symbol for a relatively thick tip.

A limiting column 57 is arranged on the end surface of the rotating wheel 5, and when the right end part of the sliding part 4 abuts against the abutting part 53, the limiting column 57 is used for abutting against the inner end surface of the end cover 6; through the setting of spacing post, being rotated the wheel and being rotated and make the right-hand member portion that supports to portion and slider to support to the back, spacing post can support with the inner terminal surface of end cover and lean on, so, can avoid rotating the wheel and appear the excessive pivoted condition, also can realize spacing to the rotation of rotating the wheel, support to the back because of the right-hand member portion that supports to portion and slider, support to do not possess locking and spacing effect between the right-hand member portion of portion and slider, consequently, the purpose that sets up spacing post is realized spacing to the rotation of rotating the wheel.

As shown in fig. 7, a boss 58 for abutting against a finger to conveniently shift the rotating wheel 5 may be further provided on the peripheral wall of the rotating wheel 5 located outside the end cover 6; after the boss is arranged on the peripheral wall of the rotating wheel positioned outside the end cover, when the rotating wheel needs to be rotated, the boss only needs to be stirred, so that convenience can be brought to rotation of the rotating wheel.

A plurality of clamping hooks 64 which are distributed circumferentially are arranged at the edge of the inner end part of the end cover 6, clamping platforms 31 which are in one-to-one correspondence with each clamping hook 64 are arranged on the inner wall of the handle 3, and each clamping hook 64 is matched and clamped with the clamping platform 31 at the corresponding position; by adopting the structure, the end cover can be conveniently assembled with the handle.

The side wall of the locking sleeve 2 is provided with an open slot 21, when the handle 3 drives the end cover 6 to rotate relative to the locking sleeve 2, the open slot 21 is used for aligning with the plurality of hooks 64 alternately, the open slot 21 is used for an object to pass through, and the object passes through the open slot 21 and then is used for pushing the hooks 64 to enable the hooks 64 to be separated from the clamping table 31; after the open slot is formed in the side wall of the locking sleeve, when the handle drives the end cover to rotate relative to the locking sleeve, the open slot can be aligned with the plurality of hooks alternately; when the open slot is aligned with the first hook, a rod object can penetrate through the open slot and push the first hook to enable the first hook to be separated from the corresponding clamping table, then the handle is continuously rotated to drive the end cover to rotate, when the open slot is aligned with the second hook, the rod object can penetrate through the open slot and push the second hook to enable the second hook to be separated from the corresponding clamping table, the steps are repeated until all the hooks are separated from the clamping tables at the corresponding positions, the end cover can be detached from the handle, and when the end cover is detached from the handle, cleaning or replacement of the sliding part and the rotating wheel can be achieved.

The elastic structure comprises a spring 7, the spring 7 is sleeved outside the push rod part 41, and two ends of the spring 7 are respectively abutted against the tool rest 1 and the sliding part 4; through the setting of spring, the spring can exert towards the gliding elasticity trend of rotating wheel one side to the slider, can make the right-hand member portion of slider lean on with the rotating wheel all the time promptly, in addition, through adopting the spring as behind the part of elastic construction, has elastic construction simple structure, the reliability is high and advantage with low costs.

In the process of using the utility model, when the rotating wheel is rotated to enable the right end part of the sliding part to abut against the first limiting groove, the distance between the push rod part and the pencil feeding hole can be increased, thus, when the pencil is cut by the pencil sharpener, the depth of the pencil point of the pencil inserted into the knife rest can be increased, and the pencil point of the pencil cut by the pencil sharpener can be thinner; when the rotating wheel is rotated to enable the right end portion of the sliding piece to abut against the second limiting groove, the distance between the push rod portion and the pencil feeding hole can be reduced, so that when the pencil is cut by the pencil sharpener, the depth of the pencil point inserted into the knife rest can be reduced, and the pencil point of the pencil cut by the pencil sharpener can be thicker; when the in-process of sharpener at the cutting pencil, when the nib fracture of pencil, through rotate the rotation wheel make the portion of leaning on the perisporium that is located the rotation wheel lean on the back with the right-hand member portion of slider, lie in the left push rod portion of slider and can further be close to into a hole, the distance between push rod portion and the hole of advancing a hole promptly can further reduce, so, the push rod can be with the nib of fracture on the knife rest release outside the knife rest.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A pencil sharpener comprises a knife rest (1), a locking sleeve (2) and a handle (3), wherein the locking sleeve (2) is used for being connected with a pencil sharpener shell, the handle (3) is used for driving the knife rest (1) to rotate, the locking sleeve (2) and the handle (3) are sequentially sleeved outside the knife rest (1) from left to right, the locking sleeve (2) is rotatably connected with the knife rest (1), and the handle (3) is in transmission connection with the knife rest (1); the left part of knife rest (1) is provided with into a hole (11), the right part sliding connection of knife rest (1) has slider (4), the left end of slider (4) is provided with and is used for the push rod portion (41) that leans on with the nib counterbalance that is located into a hole (11), its characterized in that: rotate on handle (3) and be connected with and rotate wheel (5), it is used for first spacing groove (51) and second spacing groove (52) with the alternative gomphosis of the right-hand member portion of slider (4) to rotate wheel (5) to go up circumference, the tank bottom of first spacing groove (51) is less than the tank bottom of second spacing groove (52) to the distance of the axis of rotating wheel (5) to the tank bottom of rotating wheel (5), be provided with elastic construction between slider (4) and knife rest (1), elastic construction is used for applying towards the gliding elasticity in rotation wheel (5) one side to slider (4).

2. The pencil sharpener as claimed in claim 1, wherein a first guide surface (501) is provided on the outer wall of the rotating wheel (5) between the first limit groove (51) and the second limit groove (52), and when the rotating wheel (5) rotates, the first guide surface (501) is used for guiding in cooperation with the right end of the sliding member (4) so as to facilitate the right end of the sliding member (4) to be embedded into the second limit groove (52) after being separated from the first limit groove (51) or to facilitate the right end of the sliding member (4) to be embedded into the first limit groove (51) after being separated from the second limit groove (52).

3. The pencil sharpener according to claim 1 or 2, characterized in that the right end of the sliding member (4) is provided with a projection (42) for alternately fitting with the first limit groove (51) and the second limit groove (52), and the end surface of the projection (42) facing the rotating wheel (5) is an arc-shaped surface.

4. The sharpener of claim 1, wherein the peripheral wall of the rotating wheel (5) is further provided with an abutting portion (53) for abutting against the right end portion of the sliding member (4), the distance from the end of the abutting portion (53) abutting against the sliding member (4) to the axis of the rotating wheel (5) is greater than the distance from the groove bottom of the second limit groove (52) to the axis of the rotating wheel (5), and the push rod portion (41) is configured to push out the pen core broken in the pen feeding hole (11) out of the pen feeding hole (11) when the rotating wheel (5) is rotated to abut against the abutting portion (53) against the right end portion of the sliding member (4).

5. The pencil sharpener as claimed in claim 4, wherein the first limiting groove (51), the second limiting groove (52) and the abutting portion (53) are distributed in sequence along the circumferential direction of the rotating wheel (5), a second guide surface (502) is provided on the outer wall of the rotating wheel (5) between the abutting portion (53) and the second limiting groove (52), and when the abutting portion (53) abuts against the right end of the sliding member (4) and the rotating wheel (5) is released, the second guide surface (502) is used for guiding in cooperation with the right end of the sliding member (4) to facilitate the sliding of the right end of the sliding member (4) into the second limiting groove (52).

6. The pencil sharpener as claimed in claim 4 or 5, wherein an end cover (6) is detachably connected to the right end of the handle (3), the rotating wheel (5) is rotatably connected with the end cover (6), an opening (61) is formed in the end cover (6), and a part of the rotating wheel (5) passes through the opening (61) and then is exposed out of the end cover (6).

7. The pencil sharpener as claimed in claim 6, wherein rotating shafts (54) are arranged on two end faces of the rotating wheel (5), the axis of each rotating shaft (54) coincides with the axis of the rotating wheel (5), clamping grooves (62) corresponding to the rotating shafts (54) one by one are arranged on the inner end face of the end cover (6), each rotating shaft (54) is in matched clamping connection with the clamping groove (62) in the corresponding position, and each rotating shaft (54) is in rotating connection with the clamping groove (62) in the corresponding position.

8. The pencil sharpener as claimed in claim 6, wherein an indication arrow (63) is provided on an outer end face of the end cap (6), a first mark (55) and a second mark (56) are provided on an end face of the rotating wheel (5), the first mark (55) being for aligning with the indication arrow (63) when a right end portion of the slider (4) is engaged with the first stopper groove (51), and the second mark (56) being for aligning with the indication arrow (63) when a right end portion of the slider (4) is engaged with the second stopper groove (52).

9. The pencil sharpener as claimed in claim 6, characterized in that a limiting post (57) is arranged on the end face of the rotating wheel (5), the limiting post (57) being used for abutting against the inner end face of the end cap (6) when the right end of the slider (4) abuts against the abutting portion (53).

10. The sharpener according to claim 6, characterized in that the peripheral wall of the rotating wheel (5) outside the end cap (6) is provided with a boss (58) for abutting against a finger to facilitate the turning of the rotating wheel (5).

11. The pencil sharpener as claimed in claim 6, wherein a plurality of circumferentially distributed hooks (64) are arranged at the edge of the inner end part of the end cover (6), a clamping table (31) corresponding to each hook (64) is arranged on the inner wall of the handle (3), and each hook (64) is in matched clamping connection with the clamping table (31) at the corresponding position.

12. The pencil sharpener as claimed in claim 11, wherein an open slot (21) is formed in a side wall of the locking sleeve (2), when the handle (3) drives the end cap (6) to rotate relative to the locking sleeve (2), the open slot (21) is used for being aligned with a plurality of hooks (64) alternately, the open slot (21) is used for an object to pass through, and the object is used for pushing the hooks (64) to enable the hooks (64) to be separated from the clamping table (31) after passing through the open slot (21).

13. The pencil sharpener according to claim 1, wherein the elastic structure comprises a spring (7), the spring (7) is sleeved outside the push rod portion (41), and two ends of the spring (7) are respectively abutted against the tool rest (1) and the sliding member (4).