CN213593998U

CN213593998U - Pencil clamping device and pencil sharpener

Info

Publication number: CN213593998U
Application number: CN202022584878.8U
Authority: CN
Inventors: 殷杰; 陈晓平; 叶余嘉; 刘学肸
Original assignee: Shanghai M&G Stationery Inc
Current assignee: Shanghai M&G Stationery Inc
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-07-02
Anticipated expiration: 2030-11-10

Abstract

The utility model provides a pencil clamping device and ware of cutting, the utility model discloses an upper cover plate, lower apron, elastic component, a plurality of connecting rod and a plurality of holder, wherein, upper cover plate and lower apron fixed connection, a plurality of holders center on the axis of first through-hole evenly sets up inside the upper cover plate, the inside first fixed part of apron is rotatory at the limited range for the axle above the holder can, and a plurality of holders link to each other and link through the connecting rod, and wherein the elastic component is connected to the holder of one end, resumes initial position under the elastic component effect. The utility model discloses still including the ware of cutting that adopts pencil clamping device. The utility model discloses a pencil clamping device and cut a ware can effectually resist the cutting force that transmits to the pencil when cutting the pencil, let the pencil be in best cutting position all the time to improve and cut a quality.

Description

Pencil clamping device and pencil sharpener

Technical Field

The utility model relates to a stationery field, in particular to pencil clamping device and sharpener.

Background

Most pencil clamping devices of pencil sharpeners in the market need to open a switch by hand and then put a pencil into a clamping port for clamping. In addition, most electric pencils on the market do not have a pencil clamping mechanism, and most electric pencils with a small part of clamping devices are relatively complex mechanisms. The pencil clamping device has very useful effect on both manual and electric pencil sharpeners, can effectively reduce the influence of cutting force generated during the cutting of the pencil, and can effectively lead the pencil to be in the optimal cutting position, thereby improving the quality of the cutting surface of the pencil.

Therefore, there is a need for a pencil holder and a pencil sharpener that improve the comfort and convenience of the consumer, reduce the cost, and improve the quality of the pencil cutting surface.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pencil clamping device and sharpener can weaken the cutting force that transmits on the pencil effectively when cutting the pencil, lets the pencil be in best cutting position all the time to improve the cutting face quality.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a pencil holding device, comprising: an upper cover plate, a lower cover plate, an elastic piece, a plurality of connecting rods and a plurality of clamping pieces, wherein,

the axial center of the upper cover plate is provided with a first through hole for a pencil to pass through, the upper cover plate is provided with a plurality of first fixing parts and a second fixing part, the first fixing parts are used for fixing the clamping piece, and the second fixing parts are used for fixing the elastic piece;

the axial center of the lower cover plate is provided with a second through hole, the axis of the second through hole is superposed with the axis of the first through hole so as to lead a pencil to pass through, and the lower cover plate is fixedly connected with the upper cover plate so as to lead the elastic piece, the connecting rods and the clamping pieces to be contained between the upper cover plate and the lower cover plate;

one end of the elastic piece is connected with the second fixing part, and the other end of the elastic piece is connected with an adjacent clamping piece in the plurality of clamping pieces so as to enable the clamping pieces to have a tendency of moving to an initial position;

the clamping pieces are uniformly arranged on the upper cover plate around the axis of the first through hole, and are connected into mutual linkage through the connecting rods; one end of each clamping piece, which is close to the first through hole, is provided with a clamping part used for being jointed with the outer peripheral surface of the pencil, and the plurality of clamping parts cooperate to clamp the pencil; in the initial position of the clamp, the clamp is closest to the first through hole axis; the clamping portion comprises a guide portion for guiding a pencil into engagement with the clamping portion; the clamping piece comprises a third fixing part, the third fixing part is arranged on one side of the clamping piece, and the third fixing part and the corresponding first fixing part of each clamping piece are fixed on the upper cover plate through a first fixing piece and can rotate within a limited range by taking the first fixing part as an axis.

Furthermore, the upper cover plate comprises at least one limiting piece, and the limiting piece is fixedly arranged on the upper cover plate in the direction of the moving trend of the clamping piece under the action of the elastic piece and is used for abutting against the clamping piece so as to limit the initial position of the clamping piece.

Furthermore, the limiting members are multiple, and the limiting members and the clamping members are correspondingly arranged.

Furthermore, a plurality of reinforcing ribs are arranged at the bottom of the second fixing portion to increase the connection strength between the second fixing portion and the upper cover plate.

Further, the clamping piece comprises fourth fixing parts which are arranged on two spaced sides of one end of the clamping piece, which is far away from the first through hole; the clamping pieces are sequentially connected into a non-closed ring shape through the connecting rod and the fourth fixing part, and one fourth fixing part of one clamping piece adjacent to the elastic piece in the clamping pieces is connected with the elastic piece.

Furthermore, one surface of the lower cover plate facing the upper cover plate is provided with a plurality of fifth fixing parts which are correspondingly arranged with the first fixing parts and are matched with the first fixing parts, so that the upper cover plate and the lower cover plate are fixedly connected; and one surface of the lower cover plate, which is far away from the upper cover plate, is provided with a plurality of counter bores which are correspondingly arranged with the fifth fixing part and are matched with the fifth fixing part, so as to accommodate the first fixing part.

Further, the connecting rod is arc-shaped.

Further, one end, far away from the first through hole, of the clamping piece is arc-shaped.

Further, the holder, first fixed part and first mounting are 3, the connecting rod is 2.

The utility model also provides a pencil sharpener, including above pencil clamping device.

The utility model has the advantages that:

the utility model discloses a pencil clamping device and adopt device's ware of cutting through the linkage of connecting rod, applys even, stable centre gripping to the pencil, effectively resists the cutting force that transmits on the pencil, makes the pencil be in best cutting position at the cutting in-process to improve and cut a quality.

Drawings

The foregoing summary, as well as the following detailed description of the invention, will be better understood when read in conjunction with the appended drawings. It is to be noted that the figures are only intended as examples of the claimed solution. In the drawings, like reference characters designate the same or similar elements.

FIG. 1 is a schematic view of a pencil holding device according to an embodiment of the present invention;

FIG. 2 is a schematic view of the connection between the upper cover plate and the clamping member according to an embodiment of the present invention;

fig. 3a is a schematic view of a clamp according to an embodiment of the present invention;

fig. 3b is a schematic view of another orientation of a clamp according to an embodiment of the present invention;

fig. 4 is a schematic view of a connecting rod according to an embodiment of the present invention;

fig. 5 is a schematic view of an elastic member according to an embodiment of the present invention;

fig. 6a is a schematic perspective view of an upper cover plate according to an embodiment of the present invention;

fig. 6b is a schematic plan view of an upper cover plate according to an embodiment of the present invention;

fig. 7a is a schematic perspective view of a lower cover plate according to an embodiment of the present invention;

fig. 7b is a schematic plan view of the lower cover plate according to another embodiment of the present invention.

Wherein the reference numerals are as follows:

100 upper cover plate

101 first via hole

102 first fixed part

103 second fixing part

104 position limiter

105 reinforcing rib

200 lower cover plate

201 second through hole

202 fifth fixing part

203 counter bore

300 elastic member

400 connecting rod

500 clamping piece

510 clamping part

511 guide part

520 third fixing part

530 fourth fixing part

600 first fixing member

Detailed Description

The detailed features and advantages of the present invention are described in detail in the detailed description, which is sufficient for anyone skilled in the art to understand the technical content of the present invention and to implement the present invention, and the related objects and advantages of the present invention can be easily understood by those skilled in the art from the description, the claims and the accompanying drawings disclosed in the present specification.

As shown in fig. 1-5, the utility model discloses a pencil clamping device, include: the pencil sharpener comprises an upper cover plate 100, a lower cover plate 200, an elastic part 300, a plurality of connecting rods 400 and a plurality of clamping parts 500, wherein a first through hole 101 is formed in the axial center of the upper cover plate 100 and used for allowing a pencil to pass through, a plurality of first fixing parts 102 and a second fixing part 103 are arranged on the upper cover plate 100, the first fixing parts 102 are of hollow cylindrical structures (or other suitable structures) and used for fixing the clamping parts 500, and the second fixing parts 103 are used for fixing the elastic part 300; the axial center of the lower cover plate 200 is provided with a second through hole 201, the axis of the second through hole 201 is superposed with the axis of the first through hole 101 so as to lead a pencil to pass through, and the lower cover plate 200 is fixedly connected with the upper cover plate 100 so as to contain the elastic element, the connecting rods and the clamping elements between the surface cover and the rear cover; one end of the elastic member 300 is connected to the second fixing portion 103, and the other end of the elastic member 300 is connected to an adjacent one of the plurality of clamping members 500, so that the clamping member 500 has a tendency to move to an initial position; the plurality of clamps 500 are coupled to be interlocked with each other by the plurality of links 400.

It can be understood that when a certain clamping piece moves, the connecting rod is driven, so that the connecting rod simultaneously acts on another clamping piece connected with the other end of the connecting rod, and linkage of the clamping pieces is realized.

It should be noted that any suitable tool having resilient properties without external force can be used for the elastic member, and in this embodiment, the elastic member is a tension spring.

A plurality of clamping members 500 are uniformly arranged inside the upper cover plate 100 around the axis of the first through hole 101, one end of each clamping member 500 near the first through hole 101 is provided with a clamping portion 510 extending generally along the axis of the first through hole 101 toward the upper cover plate 100, the plurality of clamping portions cooperate to clamp the pencil, the clamping portion 510 has a clamping surface for engaging with the outer peripheral surface of the pencil and a guide portion 511 for guiding the pencil into a contact state with the clamping surface. The guide 511 may be generally wedge-shaped to guide an inserted pencil. The position of the clamping portion 510 closest to the axis of the first through hole 101 is the initial position of the clamping member 500 described above. The clamping member 500 includes a third fixing portion 520, the third fixing portion 520 is a through hole structure (or other suitable structures), the third fixing portion 520 is disposed at one side of the clamping member 500, the third fixing portion 520 and a corresponding one of the first fixing portions 102 of each clamping member are fixed to the upper cover plate 100 through the first fixing member 600, and the clamping member can rotate within a limited range with the first fixing portion 102 as an axis.

The clamping member 500 further includes a fourth fixing portion 530, the fourth fixing portion 530 is a circular truncated cone structure (or other suitable structures), the fourth fixing portion 530 is disposed on two sides of one end of the clamping member 500 away from the first through hole 101, the clamping members 500 are sequentially connected to form a non-closed ring through the connecting rod 400 and the fourth fixing portion 530, that is, the clamping members 500 are connected in series and are not connected end to end, so that one connecting rod can be omitted; of course, it is also possible to connect all the holders two by two in a closed loop. A fourth fixing portion 530 of one of the plurality of clamping members 500 adjacent to the elastic member 300 is connected to the elastic member 300.

It can be understood that the plurality of clamping pieces are uniformly arranged around the axis of the first through hole, and the clamping pieces are identical in structure, so that the pencil inserted into the pencil sharpener can be uniformly stressed, and the pencil can be stably positioned in the center of the first through hole. Of course, the effect of slight structural differences and/or uneven placement on the pencil holding effect is within the contemplation of those skilled in the art.

It can be understood that when the pencil is inserted into the first through hole, the pencil simultaneously acts on the guide portions of the plurality of holding members and then contacts the holding surfaces of the holding members, during which the plurality of holding members are rotated in a set direction; the elastic piece connected with the adjacent clamping piece is stressed when the clamping piece rotates, so that the clamping piece has a trend of moving to the initial position.

It will also be appreciated that during the cutting of the pencil, the pencil is subjected to a cutting force which is then transmitted to the holder which resists the cutting force transmitted to the pencil.

As shown in fig. 6a-6b, in the illustrated embodiment, the upper plate 100 includes a plurality of position-limiting members 104, the position-limiting members 104 are uniformly disposed in the upper plate 100 around the axis of the first through hole 101, and the position-limiting members 104 are fixedly disposed on the upper plate 100 in a one-to-one correspondence manner in the direction of the moving trend of the clamping members 500 under the action of the elastic member 300, so as to abut against the clamping members 500, thereby limiting the rotation of the clamping members 500.

It should be noted that the number of the limiting members may also be one or any other suitable number than one.

It can be understood that the stopper limits the initial position of the clamping member when the clamping member is restored to the initial position by the elastic member.

The second fixing portion 103 is a cylindrical structure (or other suitable structures), and a plurality of ribs 105 are disposed at the bottom of the second fixing portion 103 to increase the connection strength between the second fixing portion 103 and the upper cover plate 100.

It should be noted that any suitable number of ribs may be used, and in this embodiment, there are three ribs.

As shown in fig. 7a-7b, the lower cover plate 200 is provided with a plurality of fifth fixing portions 202 corresponding to and engaged with the first fixing portions 102 on the surface facing the upper cover plate 100, and the fifth fixing portions 202 are hollow cylindrical structures (or other suitable structures) for connecting and fixing the upper cover plate 100 and the lower cover plate 200; the lower cover plate 200 has a plurality of counter bores 203 corresponding to and matching with the fifth fixing portions 202 on a surface thereof away from the upper cover plate 100 for receiving the first fixing members 600.

It can be understood that the first fixing member is accommodated in the counter bore, so that the head of the first fixing member does not protrude relative to the lower cover plate, and the surface of the lower cover plate far away from the upper cover plate is kept flat.

It can also be understood that the first fixing portion supports the lower cover plate so that the lower cover plate cannot be pressed to the clamping member and the clamping member can rotate in the upper cover plate.

In the illustrated embodiment, the linkage 400 is arcuate; the end of the clamping member 500 away from the first through hole is arc-shaped.

It should be noted that the end of the connecting rod and the clamping member remote from the first through hole may take any other suitable shape.

In the illustrated embodiment, the number of the clamping members 500, the first fixing portions 102 and the first fixing members 600 is 3, and the number of the connection rods 400 is 2.

It should be noted that, the clamping piece and the first fixing portion can adopt any other suitable number, the number of the connecting rods is matched with that of the clamping pieces, and the number of the first fixing pieces is matched with that of the first fixing portions.

Another aspect provides a sharpener (not shown) comprising the pencil holding device of this embodiment.

The terms and expressions which have been employed are used as terms of description and not of limitation. The use of such terms and expressions is not intended to exclude any equivalents of the features shown and described (or portions thereof), and it is recognized that various modifications may be made within the scope of the claims. Other modifications, variations, and alternatives are also possible. Accordingly, the claims should be looked to in order to cover all such equivalents.

Also, it should be noted that, although the present invention has been described with reference to the specific embodiments, it should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention, and that various equivalent changes or substitutions can be made without departing from the spirit of the present invention, and therefore, it is intended that all changes and modifications to the above embodiments within the scope of the present invention be included in the claims of the present invention.

Claims

1. A pencil holding device, comprising: an upper cover plate, a lower cover plate, an elastic piece, a plurality of connecting rods and a plurality of clamping pieces, wherein,

2. The pencil holding device of claim 1, wherein the upper cover plate includes at least one stopper fixedly disposed on the upper cover plate in a direction of a movement tendency of the holding member by the elastic member for abutting against the holding member to limit the initial position of the holding member.

3. The pencil holding device of claim 2, wherein the plurality of position limiters are disposed corresponding to the holder.

4. The pencil holding device as claimed in claim 1, wherein a plurality of ribs are formed at the bottom of the second fixing portion to increase the coupling strength between the second fixing portion and the upper cover plate.

5. The pencil holding device of claim 1, wherein the holding member includes a fourth fixing portion disposed on two spaced sides of an end of the holding member away from the first through hole; the clamping pieces are sequentially connected into a non-closed ring shape through the connecting rod and the fourth fixing part, and one fourth fixing part of one clamping piece adjacent to the elastic piece in the clamping pieces is connected with the elastic piece.

6. The pencil holding device as claimed in claim 1, wherein a plurality of fifth fixing portions are provided on a surface of the lower cover plate facing the upper cover plate, the fifth fixing portions corresponding to and cooperating with the first fixing portions, for connecting and fixing the upper cover plate and the lower cover plate; and one surface of the lower cover plate, which is far away from the upper cover plate, is provided with a plurality of counter bores which are correspondingly arranged with the fifth fixing part and are matched with the fifth fixing part, so as to accommodate the first fixing part.

7. The pencil holding device of claim 1, wherein said link is arcuate.

8. The pencil holding device of claim 1, wherein an end of the holding member away from the first through hole is arcuate.

9. The pencil holding device as claimed in any one of claims 1 to 8, wherein the number of the holding member, the first fixing portion and the first fixing member is 3, and the number of the connecting rods is 2.

10. A pencil sharpener comprising the pencil holding device of any one of claims 1 to 9.