CN210309703U

CN210309703U - Protective sheath of stable in structure and assembly eraser of this protective sheath

Info

Publication number: CN210309703U
Application number: CN201920898574.3U
Authority: CN
Inventors: 刘光成
Original assignee: Dongyang Qihao Stationery Co ltd
Current assignee: Zhejiang Qihao Cultural Creative Design Co ltd
Priority date: 2019-06-15
Filing date: 2019-06-15
Publication date: 2020-04-14
Anticipated expiration: 2029-06-15

Abstract

A protective sleeve with stable structure comprises a clamping device and a sleeve shell, wherein the clamping device comprises a clamping part for connecting an eraser and a connecting part for connecting the sleeve shell, two limiting grooves are arranged on the inner wall of the sleeve shell, a fastening component is embedded in the connecting part and comprises a first limiting rod, a first transmission rod and a second limiting rod, the first transmission rod and the second limiting rod are fixedly connected with the first limiting rod, the second transmission rod is fixedly connected with the second limiting rod, the spring is used for connecting the first limiting rod and the second limiting rod, two ends of the spring are respectively fixedly connected with the first limiting rod and the second limiting rod, the first transmission rod is located at one end, close to the spring, of the first limiting rod, the second transmission rod is located at one end, close to the spring, of the second limiting rod, clamping protrusions are arranged at one ends, far away from the spring, of the first transmission rod and the second transmission rod, and the orientation of the two clamping protrusions deviates from each other. The utility model discloses a be connected stably between clamping device and the cover shell, the process that the cover shell was taken off simultaneously is simple and convenient.

Description

Protective sheath of stable in structure and assembly eraser of this protective sheath

Technical Field

The utility model relates to an eraser technical field specifically is a stable in structure's protective sheath and assemble the eraser of this protective sheath.

Background

It is now a common practice for both students and workers to use a pencil to write or draw. When writing and drawing errors occur, people generally hold the eraser with bare hands to erase the errors, sweat and dust on the hands are easily adhered to the surface of the eraser, so that the surface of the eraser is easily blackened, the appearance is affected, and when the eraser and a pencil are placed in a writing case together, the pencil is contacted with the eraser, and the surface of the eraser is also easily blackened. In order to solve the problems, various erasers with protective sleeves appear in the market at present, the protective sleeves are divided into two parts, namely a clamping device and a sleeve, one end of each eraser is fixed in the clamping device, the sleeve is sleeved at the other end of each eraser, the sleeve is connected with the clamping device in a matched mode, the protective sleeves play a role in protecting the erasers, and the clamping devices and the sleeve in the market at present are connected in a clamping or threaded connection mode. However, the clamping mode is adopted, the connection between the clamping device and the sleeve is unstable, the sleeve is easy to fall off, the threaded connection mode is adopted, and the sleeve can be screwed off after a long time. Therefore, a protective sleeve which is stable in connection and convenient to take off the casing is urgently needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a protective sleeve with stable structure, which solves the problem that the connection between the clamping device and the casing is unstable and the casing is inconvenient to take down.

The second objective of the present invention is to provide an eraser with a protective sheath with a stable structure.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

a protective sleeve with stable structure comprises a clamping device and a casing, wherein the clamping device comprises a clamping part for connecting an eraser and a connecting part for connecting the casing, two limiting grooves are formed in the inner wall of the casing, a fastening assembly is embedded in the connecting part and comprises a first limiting rod, a first transmission rod fixedly connected with the first limiting rod, a second transmission rod fixedly connected with the second limiting rod, and a spring for connecting the first limiting rod and the second limiting rod, two ends of the spring are respectively fixedly connected with the first limiting rod and the second limiting rod, the first transmission rod is positioned at one end, close to the spring, of the first limiting rod, the second transmission rod is positioned at one end, close to the spring, of the second limiting rod, clamping protrusions are arranged at one ends, far away from the spring, of the first transmission rod and the second transmission rod, and the orientation of the two clamping bulges deviates from each other.

Furthermore, a limiting sleeve is sleeved outside the spring and comprises a first limiting sleeve and a second limiting sleeve, one end of the first limiting sleeve is fixedly connected with the first limiting rod, the other end of the first limiting sleeve is inserted into the second limiting sleeve, and the other end of the second limiting sleeve is fixedly connected with the second limiting rod.

Furthermore, a sliding groove is formed in the inner side wall of the second limiting sleeve, a sliding block used for being inserted into the sliding groove is arranged at one end, inserted into the second limiting sleeve, of the first limiting sleeve, and the sliding block slides in the sliding groove.

Furthermore, the first limiting rod and one end, far away from the spring, of the second limiting rod are provided with buttons convenient for fingers to press.

Furthermore, one end, back to the fastening component, of the connecting part is provided with an extension block, and a brush is arranged on the extension block.

Further, the extension block is sleeved with a brush sleeve used for shielding the brush, and the brush sleeve is connected with the extension block in a screwing mode through threads.

The second purpose of the utility model is realized by adopting the following technical scheme:

the eraser comprises the protective sleeve and an eraser body, wherein a groove for placing the eraser body is formed in the clamping part, and the eraser body is in interference fit with the groove.

Furthermore, one end of the rubber body, which is inserted into the groove, is provided with a first slot and a second slot which are vertically crossed, a through hole corresponding to the positions of the first slot and the second slot is formed in the wall of the groove, a first insertion rod and a second insertion rod which are in interference fit with the first slot and the second slot are respectively arranged in the first slot and the second slot in a penetrating manner, and a through hole used for penetrating through the second insertion rod is formed in the first insertion rod.

Compared with the prior art, the beneficial effects of the utility model are that: the connecting part is connected with the casing through the fastening assembly, the clamping device is stably connected with the casing, the clamping device is not easy to fall off, and the process of taking down the casing is simple and convenient.

Drawings

FIG. 1 is a schematic structural view of a structurally stable protective sheath and an eraser with the protective sheath;

FIG. 2 is a schematic structural view of the eraser body in FIG. 1;

fig. 3 is a schematic structural view of the stop collar in fig. 1.

In the figure: 1. a clamping device; 2. a housing; 3. a clamping portion; 4. a connecting portion; 5. a fastening assembly; 6. a first limit rod; 7. a first drive lever; 8. a second limiting rod; 9. a second transmission rod; 10. a spring; 11. a clamping bulge; 12. a limiting sleeve; 13. a first stop collar; 14. a second stop collar; 15. a chute; 16. a slider; 17. a button; 18. an extension block; 19. a brush; 20. a brush sleeve; 21. an eraser body; 22. a first slot; 23. a second slot; 24. inserting a first rod; 25. and a second inserting rod.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Referring to fig. 1-3, a protective sheath with stable structure comprises a holding device 1 and a casing 2, the holding device 1 comprises a holding portion 3 for connecting an eraser and a connecting portion 4 for connecting the casing 2, two limiting grooves are disposed on the inner wall of the casing 2, a fastening assembly 5 is embedded in the connecting portion 4, the fastening assembly 5 comprises a first limiting rod 6, a first transmission rod 7 fixedly connected with the first limiting rod 6, a second limiting rod 8, a second transmission rod 9 fixedly connected with the second limiting rod 8, and a spring 10 for connecting the first limiting rod 6 and the second limiting rod 8, two ends of the spring 10 are respectively fixedly connected with the first limiting rod 6 and the second limiting rod 8, the first transmission rod 7 is disposed at one end of the first limiting rod 6 close to the spring 10, the second transmission rod 9 is disposed at one end of the second limiting rod 8 close to the spring 10, clamping protrusions 11 are disposed at one ends of the first transmission rod 7 and the second transmission rod 9 far from the spring 10, and the orientation of the two blocking bulges 11 is deviated.

The clamping device 1 fixes one end of the eraser, the casing 2 is sleeved on the other end of the eraser, the casing 2 is connected with the clamping device 1 in a matching mode, and the clamping device 1 and the casing 2 jointly protect the eraser. When the cover shell 2 needs to be taken down, press first gag lever post 6 and second gag lever post 8, under the effect of external force, spring 10 is compressed, thereby can let first gag lever post 6 and second gag lever post 8 remove inwards, first gag lever post 6 and second gag lever post 8 remove inwards and drive first transfer line 7 and second transfer line 9 and remove inwards, thereby can drive the protruding 11 inward removals of screens, at this moment, the protruding 11 spacing grooves that break away from of screens, alright realize the alternate segregation between connecting portion 4 and the cover shell 2, and the same principle, can realize the equipment between connecting portion 4 and the cover shell 2, and is swift effective, and be difficult for breaking away from after the equipment, and the practicality is strong. The utility model discloses a be connected stably between clamping device 1 and the cover shell 2, the process that cover shell 2 taken off simultaneously is simple and convenient.

The outside of spring 10 has cup jointed stop collar 12, and stop collar 12 includes first stop collar 13 and second stop collar 14, and the one end and the first gag lever post 6 fixed connection of first stop collar 13, the other end of first stop collar 13 insert in second stop collar 14, the other end and the 8 fixed connection of second gag lever post of second stop collar 14.

The position of the spring 10 is conveniently limited by the limiting sleeve 12, and the spring 10 is prevented from being bent and twisted. As the spring 10 is continuously compressed, the end of the first stop collar 13 inserted into the second stop collar 14 gradually penetrates into the interior of the second stop collar 14, whereby the length of the stop collar 12 corresponds to the length of the spring 10.

A sliding groove 15 is formed in the inner side wall of the second limiting sleeve 14, a sliding block 16 used for being inserted into the sliding groove 15 is arranged at one end, inserted into the second limiting sleeve 14, of the first limiting sleeve 13, and the sliding block 16 slides in the sliding groove 15.

When one end of the first position-limiting sleeve 13 moves in the second position-limiting sleeve 14, the sliding block 16 on the first position-limiting sleeve 13 slides in the sliding groove 15 of the second position-limiting sleeve 14, and when the sliding block 16 slides to two ends of the sliding groove 15, the sliding block 16 cannot continuously slide, so that the first position-limiting sleeve 13 cannot slide in the second position-limiting sleeve 14 any more, and the first position-limiting sleeve 13 is prevented from falling from the second position-limiting sleeve 14.

The first limiting rod 6 and the second limiting rod 8 are provided with buttons 17 which are convenient for fingers to press at the ends far away from the spring 10.

Pressing the button 17 can drive the first limiting rod 6 and the second limiting rod 8 to move, the stress area of the button 17 is larger than the first limiting rod 6 and the second limiting rod 8, and the hand is pressed more comfortably.

The end of the connecting part 4 facing away from the fastening component 5 is provided with an extension block 18, and the extension block 18 is provided with a brush 19.

After the eraser is used for wiping, the hairbrush 19 on the extension block 18 can be used for timely recycling and finishing the residues, so that the effects of quick finishing and environmental protection are achieved.

The extension block 18 is sleeved with a brush sleeve 20 for shielding the brush 19, and the brush sleeve 20 is screwed with the extension block 18 through threads.

When the brush 19 is not needed, the brush sleeve 20 is screwed on the extension block 18 through threads, so that the brush 19 is shielded and protected, and the brush 19 is prevented from being polluted.

An eraser comprises the protective sleeve with the stable structure and an eraser body 21, wherein a groove for placing the eraser body 21 is formed in a clamping part 3, and the eraser body 21 is in interference fit with the groove.

One end of the eraser body 21 penetrates into a groove of the clamping part 3, the clamping part 3 is made of plastic materials, the eraser body 21 is in interference fit with the groove, and the eraser body 21 can be firmly clamped in the groove by the aid of elasticity of the eraser body 21.

One end of the rubber body 21 inserted into the groove is provided with a first slot 22 and a second slot 23 which are vertically crossed, the wall of the groove is provided with a through hole corresponding to the positions of the first slot 22 and the second slot 23, the first slot 22 and the second slot 23 are respectively provided with a first inserted rod 24 and a second inserted rod 25 which are in interference fit with the first slot 22 and the second slot 23 in a penetrating way, and the first inserted rod 24 is provided with a through hole for penetrating the second inserted rod 25.

After one end of the eraser body 21 is inserted into the groove, the first insertion rod 24 penetrates into the eraser body 21 through the through hole and the first insertion slot 22, at the moment, the second insertion slot 23 corresponds to the position of the through hole, the second insertion rod 25 penetrates into the eraser body 21 through the through hole, the second insertion slot 23 and the through hole, the first insertion rod 24 and the second insertion rod 25 are in interference fit with the first insertion slot 22 and the second insertion slot 23 respectively, and the first insertion rod 24 and the second insertion rod 25 can be stably inserted into the eraser body 21 by utilizing the elasticity of the eraser body 21.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A structurally stable protective sheath, comprising a holding device (1) and a case (2), characterized in that: the clamping device (1) comprises a clamping part (3) used for connecting an eraser and a connecting part (4) used for connecting a casing (2), two limiting grooves are formed in the inner wall of the casing (2), a fastening component (5) is embedded in the connecting part (4), the fastening component (5) comprises a first limiting rod (6), a first transmission rod (7) fixedly connected with the first limiting rod (6), a second limiting rod (8), a second transmission rod (9) fixedly connected with the second limiting rod (8), and a spring (10) used for connecting the first limiting rod (6) and the second limiting rod (8), two ends of the spring (10) are fixedly connected with the first limiting rod (6) and the second limiting rod (8) respectively, the first transmission rod (7) is located at one end, close to the spring (10), of the first limiting rod (6), the second transfer line (9) are located be close to on second gag lever post (8) the one end of spring (10), first transfer line (7) with keep away from on second transfer line (9) the one end of spring (10) all is provided with screens arch (11), and the orientation of two screens arch (11) deviates from mutually.

2. A structurally stable protective casing according to claim 1, wherein: stop collar (12) has been cup jointed to the outside of spring (10), stop collar (12) include first stop collar (13) and second stop collar (14), the one end of first stop collar (13) with first gag lever post (6) fixed connection, the other end of first stop collar (13) inserts in second stop collar (14), the other end of second stop collar (14) with second gag lever post (8) fixed connection.

3. A structurally stable protective casing according to claim 2, wherein: a sliding groove (15) is formed in the inner side wall of the second limiting sleeve (14), a sliding block (16) used for being inserted into the sliding groove (15) is arranged at one end, inserted into the second limiting sleeve (14), of the first limiting sleeve (13), and the sliding block (16) slides in the sliding groove (15).

4. A structurally stable protective casing according to claim 1, wherein: the first limiting rod (6) and the second limiting rod (8) are provided with buttons (17) which are convenient for fingers to press at one ends of the springs (10).

5. A structurally stable protective casing according to claim 1, wherein: one end, back to the fastening component (5), of the connecting part (4) is provided with an extending block (18), and a brush (19) is arranged on the extending block (18).

6. A structurally stable protective casing according to claim 5, wherein: the brush sleeve (20) used for shielding the brush (19) is sleeved on the extension block (18), and the brush sleeve (20) is connected with the extension block (18) in a screwing mode through threads.

7. An eraser, which is characterized in that: comprises a structurally stable protective sleeve as claimed in any one of claims 1 to 6 and a rubber body (21), wherein a groove for placing the rubber body (21) is arranged on the clamping part (3), and the rubber body (21) is in interference fit with the groove.

8. An eraser according to claim 7, wherein: one end of the rubber body (21) inserted into the groove is provided with a first slot (22) and a second slot (23) which are vertically crossed, the wall of the groove is provided with a through hole corresponding to the positions of the first slot (22) and the second slot (23), the first slot (22) and the second slot (23) are respectively provided with a first inserted rod (24) and a second inserted rod (25) which are in interference fit with the first inserted rod and the second inserted rod, and the first inserted rod (24) is provided with a through hole for penetrating through the second inserted rod (25).