CN215850493U

CN215850493U - Casing and top cap connection structure of pencil sharpener

Info

Publication number: CN215850493U
Application number: CN202121756002.5U
Authority: CN
Inventors: 娄宗茂
Original assignee: Jinyi Stationery Co ltd
Current assignee: Jinyi Stationery Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-02-18
Anticipated expiration: 2031-07-29

Abstract

The utility model relates to the technical field of pencil sharpeners, and discloses a connecting structure of a casing and a top cover of a pencil sharpener, which comprises: the outer wall of the shell is provided with a plurality of clamping grooves along the circumferential direction of the shell, and the side surfaces of the clamping grooves are provided with openings communicated with the clamping grooves; the top cover is detachably arranged on the shell; the inner wall of the top cover is provided with a plurality of clamping blocks along the circumferential direction of the top cover, and the clamping blocks can be clamped into the clamping grooves along the openings. The utility model has the advantages that the shell and the top cover are firmly clamped and are simple to operate.

Description

Casing and top cap connection structure of pencil sharpener

Technical Field

The utility model relates to the technical field of pencil sharpeners, in particular to a connecting structure of a casing and a top cover of a pencil sharpener.

Background

The automatic pencil sharpener is characterized in that a tool rest, a hob and other components of the automatic pencil sharpener are arranged in the shell, and after the tool rest, the hob and the shell are assembled, the automatic pencil sharpener is arranged on the shell through a top cover, and the whole pencil sharpener is assembled. The existing shell and the top cover are easy to loosen and have poor stability.

For example, patent "CN 210026839U" discloses a housing assembly of a pencil sharpener, comprising: the top of the upper shell is provided with a first arc surface and a second arc surface which are connected; the first arc surface is downwards concave, the second arc surface is upwards convex, and the first arc surface and the second arc surface are connected with a positioning ring; a plurality of clamping blocks are arranged at the bottom of the upper shell; the top cover is sleeved on the positioning ring, and the bottom of the top cover is provided with a third arc surface and a fourth arc surface which are connected; the third arc surface is attached to the first arc surface, and the fourth arc surface is attached to the second arc surface; the clamping device comprises an upper shell, a lower shell, a clamping block and a clamping block, wherein the upper shell is arranged above the lower shell; and a bottom cover disposed below the lower case. In this scheme, there is not any joint structure between top cap and the casing, and it is not hard up easily to use for a long time, and fixed effect is poor, can't guarantee structural stability.

For example, patent "CN 210026842U" discloses a holder assembly for a pencil sharpener, comprising: a mounting seat with a sliding groove; a top cover is arranged above the mounting seat, a fixed sleeve is connected below the mounting seat, and an accommodating cavity is formed in the middle of the fixed sleeve; a connecting piece with a buckle is arranged in the chute; the tool rest is arranged in the accommodating cavity and is positioned between the fixed sleeve and the mounting seat; the shell is provided with a clamping groove and is arranged below the top cover; the buckle is clamped in the clamping groove. In this scheme, fix through setting up extra connecting piece between shell and the top cap, the structure is complicated.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings in the prior art, the utility model provides a connection structure for a housing and a top cover of a pencil sharpener, which is stable in clamping and simple in structure.

The technical scheme adopted by the utility model for solving the technical problem is to provide a connecting structure of a shell and a top cover of a pencil sharpener, which comprises the following steps:

the outer wall of the shell is provided with a plurality of clamping grooves along the circumferential direction of the shell, and the side faces of the clamping grooves are provided with openings communicated with the clamping grooves;

a top cover detachably disposed on the housing; the inner wall of the top cover is provided with a plurality of clamping blocks along the circumferential direction of the inner wall, and the clamping blocks can be clamped into the clamping grooves along the openings.

Furthermore, a protruding part is arranged on the outer wall of the shell, and the clamping groove is formed in the protruding part;

the bulge extends out of a fixed block towards the clamping groove, and a fixed groove is formed in the fixed block; the fixed block is detachably clamped in the fixed groove.

Furthermore, a guide head is arranged at the end part of the protruding part close to the opening, and the sectional area of the guide head is gradually increased from one end far away from the fixed block to one end close to the fixed block.

Further, the fixed block is the arc piece, the fixed slot is the arc groove.

Furthermore, the top of the boss is provided with a guide inclined plane which is gradually inclined outwards from top to bottom.

Furthermore, the outer wall of the shell is provided with two clamping grooves in a centrosymmetric manner, and the inner wall of the top cover is provided with two clamping blocks in a centrosymmetric manner;

the two clamping blocks can be clamped into the two clamping grooves respectively along the clockwise direction.

Furthermore, a convex ring is arranged at the top of the shell, and the convex part is positioned on the convex ring;

a plurality of ribs are arranged on the inner wall of the top cover along the circumferential direction of the inner wall, and the ribs are attached to the outer surface of the convex ring.

Furthermore, a plurality of positioning grooves are formed in the inner wall of the convex ring.

Furthermore, the top cover protrudes upwards to form two lugs, and the two lugs are symmetrically arranged on the top cover.

Compared with the prior art, the utility model has at least the following beneficial effects:

in the utility model, a clamping groove with an opening is arranged on the convex part of the shell, a clamping block is arranged on the top cover, and the clamping block can be clamped into the clamping groove along the clockwise direction so as to fix the top cover on the shell; the clamping groove is internally provided with a fixed block, the fixed block is provided with a fixed groove, the fixed block is matched with the fixed groove, the top cover is ensured to be fixed on the shell, the top cover cannot be loosened due to repeated rotation of the knife rest in the pencil sharpening process, and the pen is reliable in fixation and high in stability; and the fixed slot is the arc wall, and the fixed block is the arc piece, makes things convenient for the arc piece can smoothly block in the arc wall, and the retardant sense is little, and in addition, the direction head that sets up on the bellying all makes things convenient for the top cap joint to fix on the shell with the direction inclined plane. Two clamping blocks which are centrosymmetric on the top cover and two clamping grooves which are centrosymmetric on the shell are mutually detachably clamped, so that the clamping is firm and reliable, and the stress is balanced.

Drawings

FIG. 1 is a schematic structural view of a connection structure between a housing and a top cover of a pencil sharpener of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;

FIG. 4 is a top view of FIG. 1;

fig. 5 is a cross-sectional view taken along a-a of fig. 4.

In the figure:

1. a housing; 10. a convex ring; 101. positioning a groove; 11. a boss portion; 111. a card slot; 112. a fixed block; 113. a guide head; 114. a guide slope;

2. a top cover; 20. a clamping block; 201. fixing grooves; 21. ribs; 22. a lug.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 5, a housing and cap connecting structure of a pencil sharpener includes: the shell comprises a shell 1 and a top cover 2, wherein the outer wall of the shell 1 is provided with a plurality of clamping grooves 111 along the circumferential direction of the shell 1, and the side surfaces of the clamping grooves 111 are provided with openings communicated with the clamping grooves 111; i.e. the side opening. A top cover 2 detachably provided on the housing 1; the inner wall of the top cover 2 is provided with a plurality of clamping blocks 20 along the circumferential direction of the inner wall, and the clamping blocks 20 can be clamped into the clamping grooves 111 along the openings. Specifically, the outer wall of the housing 1 is provided with two clamping grooves 111 in a centrosymmetric manner, and the inner wall of the top cover 2 is provided with two clamping blocks 20 in a centrosymmetric manner; the two latch blocks 20 can be respectively latched into the two latch slots 111 along the clockwise direction. That is, one latch 20 is latched into one latch groove 111, and the other latch 20 is latched into the other latch groove 111. When the top cover 2 needs to be detached from the housing 1, the top cover 2 can be rotated in the counterclockwise direction, so that the two latches 20 are respectively disengaged from the two slots 111.

As shown in fig. 2, the outer wall of the housing 1 has a protruding portion 11, and the locking slot 111 is opened on the protruding portion 11; the protruding portion 11 extends out of the fixing block 112 into the slot 111, and the fixing block 20 is provided with a fixing slot 201; the fixing block 112 is detachably clamped in the fixing groove 201. Through the block of fixed block 112 and fixed slot 201, be equivalent to with fixture block 20 locking in draw-in groove 111, prevent that top cap 2 from taking place anticlockwise motion at the in-process of cutting the pen repeatedly, also prevent to appear maloperation and make top cap 2 break away from shell 1.

In the actual use process, a clamping groove 111 with an opening is arranged on the convex part 11 of the shell 1, a clamping block 20 is arranged on the top cover 2, and the clamping block 20 can be clamped into the clamping groove 111 along the clockwise direction so as to fix the top cover 2 on the shell 1; and be equipped with fixed block 112 in draw-in groove 111, be equipped with fixed slot 201 on the fixture block 20, fixed block 112 and fixed slot 201 looks adaptation guarantee that top cap 2 fixes on shell 1, and in the process of cutting a pencil, the repeated rotation of knife rest can not make top cap 2 not hard up yet, and is fixed reliable, stability is high.

As shown in fig. 2, 3 and 5, a guide head 113 is disposed at an end portion of the protruding portion 11 close to the opening, and a sectional area of the guide head 113 gradually increases from one end far away from the fixed block 112 to one end close to the fixed block 112, that is, the end portion is transited through a fillet and a chamfer, so that the latch 20 is conveniently latched into the latch groove 111. The fixed block 112 is the arc piece, the fixed slot 201 is the arc wall, and the joint cooperation of arc piece and arc wall, the block is smooth and easy. Wherein, the top of the protruding part 11 is provided with a guiding inclined plane 114 which is gradually inclined outwards from top to bottom. In the actual use process, the guide head 113 and the guide inclined surface 114 arranged on the protrusion 11 facilitate the top cover 2 to be clamped and fixed on the housing 1, that is, the guide inclined surface 114 facilitates the top cover to be vertically clamped, and the guide head 113 facilitates the clamping block 20 to be laterally clamped into the clamping groove 111.

Wherein, the top of the shell 1 is provided with a convex ring 10, and the convex part 11 is positioned on the convex ring 10; a plurality of ribs 21 are arranged on the inner wall of the top cover 2 along the circumferential direction of the inner wall, and the plurality of ribs 21 are attached to the outer surface of the convex ring 10. The rib 21 can not only strengthen the structural strength of the top cover 2, but also stick to the outer surface of the convex ring 10 during assembly, so that the top cover 2 and the convex ring 10 can be quickly aligned, and the top cover 2 can be accurately fixed on the shell 1. The inner wall of the convex ring 10 is provided with a plurality of positioning grooves 101, specifically two positioning grooves 101 are symmetrically arranged and used for being mutually inserted and positioned with positioning blocks on the pencil sharpener top frame.

As shown in fig. 1-3, the top cover 2 protrudes upwards to form two lugs 22, and the two lugs 22 are symmetrically arranged on the top cover 2, and the two symmetrically arranged lugs 22 facilitate manual operation no matter when the top cover 2 is rotationally clamped on the housing 2 or when the top cover 2 is reversely rotated and disengaged from the housing 2; and the overall appearance of the pencil sharpener is beautiful.

In this scheme, the joint between this shell 1 and the top cap 2 is firm, and easy operation. Compare in the cooperation between current shell 1 and the top cap 2, need not set up extra fixed part, also be difficult for appearing top cap 2 at the pencil sharpener in-process of sharpening, the rotation repeatedly of knife rest, and make the not hard up condition of top cap 2.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention 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, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Claims

1. A shell and top cap connection structure of a pencil sharpener is characterized by comprising:

2. The connection structure of the casing and the top cover of the pencil sharpener as claimed in claim 1, wherein the outer wall of the casing is provided with a protruding portion, and the clamping groove is formed in the protruding portion;

3. The structure as claimed in claim 2, wherein the protrusion has a guiding head at an end thereof adjacent to the opening, and the guiding head has a cross-sectional area gradually increasing from an end thereof away from the fixing block to an end thereof adjacent to the fixing block.

4. The structure as claimed in claim 2, wherein the fixing block is an arc-shaped block, and the fixing groove is an arc-shaped groove.

5. The structure as claimed in claim 2, wherein the protrusion has a guiding slope inclined outward from top to bottom.

6. The connection structure for the housing and the top cover of the pencil sharpener according to any one of claims 1-5, wherein the outer wall of the housing is centrally and symmetrically provided with two clamping grooves, and the inner wall of the top cover is centrally and symmetrically provided with two clamping blocks;

7. The structure of claim 2, wherein a protruding ring is disposed on the top of the housing, and the protrusion is disposed on the protruding ring;

8. The sharpener housing and cap connection structure of claim 7 wherein said raised ring has a plurality of detents on its inner wall.

9. The structure as claimed in claim 1, wherein the top cover has two protruding lugs protruding upward, and the two lugs are symmetrically disposed on the top cover.