CN211994898U

CN211994898U - Eraser telescopic component and telescopic eraser

Info

Publication number: CN211994898U
Application number: CN202020575388.9U
Authority: CN
Inventors: 金响标
Original assignee: Yiwu Dingbang Stationery And Sporting Goods Co ltd
Current assignee: Yiwu Dingbang Stationery And Sporting Goods Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-11-24
Anticipated expiration: 2030-04-17

Abstract

The utility model discloses an elastic rubber component and an elastic rubber, which comprises a front sleeve, a rear sleeve and a push rod with the front end connected with a rubber piece, wherein the front sleeve is in front-back butt joint with the rear sleeve, and the back sleeve pipe can rotate for the front sleeve pipe, the front end opening of front sleeve pipe, the push rod is located by the house steward intracavity that front sleeve pipe and back sleeve pipe constitute, the push rod outer wall is equipped with first screw thread, at least partly be equipped with the first screw thread assorted second screw thread of push rod of back sheathed tube inner wall, rotate the back sleeve pipe and send the push rod front end stretch out and draw back around in the front sleeve pipe, rubber spare is fixed at the front end of push rod by detachably, and is flexible around following the removal of push rod, exposes rubber telescopic component outside or hide in rubber telescopic component, overall structure is comparatively simple, and it is comparatively convenient to use, and can exhaust rubber spare to the furthest, avoids the wasting of resources.

Description

Eraser telescopic component and telescopic eraser

Technical Field

The utility model relates to a stationery especially relates to an eraser flexible subassembly and scalable eraser, and the steerable eraser of eraser flexible subassembly is flexible around going on.

Background

The eraser is widely used as a stationery product, and is mainly used for erasing pencil handwriting so as to facilitate a user to correct a file or drawing. Generally, an eraser is formed in a shape of a small block, a long strip, or the like, so that a user can hold a part of the eraser and make contact with a sheet with its end to perform wiping.

However, the conventional eraser has the following problems in use: firstly, the surface of the rubber is exposed, so that the rubber is easily polluted by dirt in use, and the paper surface is further polluted; and secondly, in the later use period, when the volume of the eraser is gradually reduced, the user cannot hold the eraser, so that the eraser cannot be used up, and the resource waste is caused.

If the utility model with the authorization notice number of CN 202088751U discloses a rotary telescopic eraser, which comprises an outer cylinder, a lifting base and a knob in threaded connection with the lifting base, wherein the eraser is arranged on the lifting base; when in use, the eraser in the outer cylinder is rotated out only by rotating the knob, and the knob is rotated in the opposite direction after use, and the rotated eraser enters the outer cylinder.

As another example, the application publication No. CN 102848825a discloses an elastic eraser with a fixing sheath, which comprises a hollow cylindrical fixing sheath and an eraser rod embedded in the fixing sheath. One end of the fixed outer sleeve is matched with an adjusting knob, one side of the adjusting knob, which faces the inner cavity of the fixed outer sleeve, is fixed with a screw, the screw is matched with a rotating sleeve with an internal thread, and one end of the rubber rod is contacted with the rotating sleeve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a convenient to use's flexible subassembly of rubber, further have the scalable eraser of the flexible subassembly of above-mentioned rubber.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the rubber telescopic assembly comprises a front sleeve, a rear sleeve and a push rod, wherein the front end of the push rod is connected with a rubber piece, the front sleeve is in front-back butt joint with the rear sleeve, the rear sleeve can rotate relative to the front sleeve, the front end of the front sleeve is provided with an opening, the push rod is positioned in a main pipe cavity formed by the front sleeve and the rear sleeve, the outer wall of the push rod is provided with first threads, at least one part of the inner wall of the rear sleeve is provided with second threads matched with the first threads of the push rod, and the rear sleeve is rotated to enable the front end of the push rod to be stretched back and forth in the front sleeve.

The utility model discloses a further optimization scheme does: the outer wall of the front sleeve is provided with an annular rib, the inner wall of the rear sleeve is provided with an annular groove, and the annular groove is matched with the annular rib to enable the rear sleeve to rotate relative to the front sleeve.

The utility model discloses a further optimization scheme does: the second thread is arranged on the inner wall of the front end of the rear sleeve.

The utility model discloses a further optimization scheme does: the main pipe cavity consists of a first pipe cavity of a front sleeve and a second pipe cavity of a rear sleeve which are positioned on the same axis, the front part of the push rod is positioned in the first pipe cavity, and the rear part of the push rod is positioned in the second pipe cavity.

The utility model discloses a further optimization scheme does: the tail part of the rear sleeve is provided with a detachable cover cap.

The utility model discloses a further optimization scheme does: the push rod comprises a connecting head connected with the rubber piece and a screw rod provided with a first thread, the outer diameter of the connecting head is larger than that of the screw rod, a limiting part is arranged on the inner wall of the joint of the front sleeve and the rear sleeve, and the limiting part is used for limiting the connecting head with the larger outer diameter to move backwards.

The utility model discloses a further optimization scheme does: the coupling head is provided with a dovetail groove for coupling the rubber piece.

The utility model discloses a further optimization scheme does: the front sleeve, the rear sleeve and the push rod are made of plastics.

The utility model discloses a further optimization scheme does: the outer diameter of the coupling head is equivalent to the inner diameter of the front sleeve.

The utility model discloses another theme does: the telescopic eraser is characterized by comprising an eraser piece and an eraser telescopic assembly, wherein the eraser piece is fixedly arranged at the front end of the push rod.

Compared with the prior art, the utility model has the advantages that preceding sleeve pipe and back sleeve pipe butt joint all around, push rod and back sleeve pipe threaded connection rotate the back sleeve pipe and can make the push rod front end flexible around the preceding cover intraductal to drive rubber spare and expose outside the flexible subassembly of rubber or hide in the flexible subassembly of rubber, overall structure is comparatively simple, and it is comparatively convenient to use, and can exhaust rubber spare to the furthest, avoids the wasting of resources.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic view of a retracted state of a rubber member according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view showing an extended state of the rubber member according to a preferred embodiment of the present invention;

FIG. 3 is a cross-sectional view of the rubber member in an extended state according to a preferred embodiment of the present invention;

fig. 4 is an exploded view of a preferred embodiment of the present invention;

FIG. 5 is a schematic view of a front sleeve and a rear sleeve of a preferred embodiment of the present invention;

FIG. 6 is a schematic view of a rubber member and a push rod according to a preferred embodiment of the present invention;

fig. 7 is a partially enlarged schematic view one of fig. 3 according to a preferred embodiment of the present invention;

fig. 8 is a partially enlarged schematic view of fig. 3 according to a preferred embodiment of the present invention.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

1-4, the retractable eraser comprises an eraser 100 and an eraser extension assembly 200, wherein the eraser 100 is arranged in the eraser extension assembly 200.

Specifically, as shown in fig. 3-4, the rubber expansion assembly 200 includes a front sleeve 01, a rear sleeve 02, and a push rod 03 having a front end coupled with a rubber member, the front sleeve 01 and the rear sleeve 02 are butted front and back, the rear sleeve 02 is rotatable with respect to the front sleeve 01, the front end of the front sleeve 01 is open, the push rod 03 is located in a main pipe cavity S formed by the front sleeve 01 and the rear sleeve 02, the outer wall of the push rod 03 is provided with a first thread 1, at least a portion of the inner wall of the rear sleeve 02 is provided with a second thread 2 matching with the first thread 1 of the push rod 03, the rear sleeve 02 is rotated to expand and contract the front end of the push rod 03 back and forth in the front sleeve 01, and the rubber member 100 is detachably fixed at the front end of the push rod 03 to expand and contract back and forth following the movement of the push rod 03 to expose the rubber expansion assembly 200 or hide the rubber.

When a user needs to use the eraser, the eraser telescopic assembly 200 pushes the eraser 100 out, and the user holds the eraser telescopic assembly 200 to enable the front end of the eraser 100 to be in contact with the surface of paper or other objects with erasers to be wiped, so that pencil handwriting can be wiped off, and the eraser is convenient to use; when the eraser is used gradually and the volume is reduced gradually, the whole length of the eraser can be kept by the aid of the eraser telescopic assembly 200, a user can hold the eraser telescopic assembly 200 to wipe only by adjusting the eraser telescopic assembly 200 to expose the eraser 100, the eraser telescopic assembly is not affected by the volume change of the eraser 100, and therefore the eraser can be used up to the maximum extent.

Preferably, as shown in fig. 5 and 7, the outer wall of the front sleeve 01 is provided with an annular rib 7, the inner wall of the rear sleeve 02 is provided with an annular groove 8 matched with the annular rib 7, the front sleeve 01 and the rear sleeve 02 are butted by embedding the annular rib 7 into the annular groove 8, and the annular rib 7 and the annular groove 8 are in clearance fit, so that the rear sleeve 02 can rotate relative to the front sleeve 01. Through the design, the front sleeve 01 and the rear sleeve 02 can be rotatably connected, the reliability and the stability of connection of the front sleeve 01 and the rear sleeve 02 are improved, the connection structure between the front sleeve 01 and the rear sleeve 02 is simplified, and the production cost is saved.

Preferably, as shown in fig. 3, the main lumen S is composed of a first lumen S1 of the front cannula 01 and a second lumen S2 of the rear cannula 02 which are in the same axis, a front portion of the push rod 03 is located in the first lumen S1, and a rear portion of the push rod 03 is located in the second lumen S2; the first lumen S1 and the second lumen S2 communicate.

More preferably, as shown in fig. 5, the rear end of the front sleeve 01 is provided with a first connecting end 3, the front end of the rear sleeve 02 is provided with a second connecting end 4, the first connecting end 3 is a boss with a diameter smaller than the outer diameter of the front sleeve 01, the first lumen S1 penetrates through the middle of the boss, the second connecting end 4 is a groove matched with the first connecting end 3, and the second lumen S2 penetrates through the middle of the groove. When the first coupling end 3 is plugged into the second coupling end 4, the front sleeve 01 is coaxially butted against the rear sleeve 02, and the first lumen S1 and the second lumen S2 are coaxially butted against each other.

Further preferably, as shown in fig. 1 and 2, the diameter of the front sleeve 01 is the same as that of the rear sleeve 02, so that the housing of the rubber telescopic assembly 200 is kept flat to form a cylindrical shape, which not only makes the appearance of the telescopic eraser more concise and beautiful, but also makes the user more comfortable and convenient to hold, and improves the use experience of the eraser.

In this embodiment, the second thread 2 is disposed on the inner wall of the front end of the rear sleeve 02, the user can finely adjust the extension length of the rubber member 100 by rotating the thread, and the thread pitches of the first thread 1 and the second thread 2 can be set as required. The user can adjust the extension length of the rubber piece by rotating the rear sleeve, so that the use is more convenient.

Furthermore, as shown in fig. 3 and 4, the rear sleeve 02 is preferably provided at its rear end with a removable cap 04, and the cap 04 seals the end of the second lumen S2 to prevent external interference factors such as dust, moisture, etc. from entering the inside of the rubber telescopic assembly 200, thereby contaminating the rubber member 100 or damaging the internal knot to affect the smooth movement of the rubber telescopic assembly 200.

As shown in fig. 6 and 8, as a specific embodiment of the push rod 03, in this embodiment, the push rod 03 includes a coupling head 31 coupled to the rubber member 100 and a screw rod 32 provided with a first thread 1, an outer diameter of the coupling head 31 is larger than an outer diameter of the screw rod 32, an inner wall of a joint of the front sleeve 01 and the rear sleeve 02 is provided with a limiting portion 9, and the limiting portion 9 limits the coupling head with the larger outer diameter to move backwards, so as to realize the limiting movement of the rubber member 100.

When the push rod 03 retracts to the limit position of the rear side, the front end of the rubber piece 100 is positioned on the inner side of the front end opening of the front sleeve 01, so that the rubber piece 100 is integrally hidden in the tube body of the rubber telescopic assembly 200, the rubber is contained and protected, and the rubber is prevented from being damaged and polluted; when the push rod 03 extends to the limit position of the front side, the joint of the rubber piece 100 and the push rod 03 is positioned outside the front end opening of the front sleeve 01, so that the rubber piece 100 is used up to the maximum extent, and resource waste is avoided.

Preferably, the coupling head 31 is provided with a dovetail groove 5 for coupling a rubber member. The rubber piece 100 is embedded in the dovetail groove 5 in an interference manner, the diameter of a front port of the dovetail groove 5 is smaller than that of a rear end, namely the section of the front port is smaller closer to a mouth part, and correspondingly, the rear end connecting part 6 of the rubber piece 100 is in a form that the width is gradually increased, so that the connection of the rubber piece 100 is firmer, and the rubber piece 100 is prevented from being separated from the connecting head 31.

Further preferably, the outer diameter of the coupling head 31 is equivalent to the inner diameter of the front sleeve 01, and the inner wall of the first lumen S1 of the front sleeve 01 supports and guides the coupling head 31, so that the push rod 03 can move stably when extending back and forth.

It should be understood that the material selection is not limited, and the front sleeve 01, the rear sleeve 02 and the push rod 03 are made of plastic or metal.

It is right above the utility model provides a flexible subassembly of rubber and scalable eraser have carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and implementation mode have been elucidated, and the explanation of above embodiment is only used for helping the assistant the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The rubber telescopic assembly is characterized by comprising a front sleeve, a rear sleeve and a push rod, wherein the front end of the push rod is connected with a rubber piece, the front sleeve is in front-back butt joint with the rear sleeve, the rear sleeve can rotate relative to the front sleeve, the front end of the front sleeve is provided with an opening, the push rod is positioned in a main pipe cavity formed by the front sleeve and the rear sleeve, the outer wall of the push rod is provided with first threads, at least one part of the inner wall of the rear sleeve is provided with second threads matched with the first threads of the push rod, and the rear sleeve is rotated to enable the front end of the push rod to stretch back and forth in the front sleeve.

2. The assembly as claimed in claim 1, wherein said front sleeve has an outer wall provided with an annular rib and said rear sleeve has an inner wall provided with an annular groove, said annular groove cooperating with said annular rib to allow said rear sleeve to be rotated relative to said front sleeve.

3. The rubber expansion assembly of claim 1, wherein said second thread is disposed on the inner wall of the front end of the rear sleeve.

4. The rubber expansion assembly of claim 1, wherein said manifold chamber is composed of a first chamber of a front sleeve and a second chamber of a rear sleeve on the same axis, a front portion of said push rod being located in said first chamber and a rear portion of said push rod being located in said second chamber.

5. The rubber expansion assembly of claim 1, wherein the rear sleeve is provided with a removable cap at its rear end.

6. The rubber expansion assembly of claim 1, wherein the push rod comprises a coupling head coupled to the rubber member and a screw having a first thread, the coupling head has an outer diameter larger than that of the screw, and a stopper is provided on an inner wall of a junction between the front and rear casings to restrict the coupling head having the larger outer diameter from moving backward.

7. A rubber expansion assembly as claimed in claim 6, wherein said coupling head is provided with a dovetail groove for coupling with a rubber member.

8. The rubber expansion assembly of claim 1, wherein said front sleeve, said rear sleeve and said push rod are made of plastic.

9. The rubber expansion assembly of claim 6, wherein said coupling head has an outer diameter comparable to the inner diameter of said front sleeve.

10. The telescopic eraser as claimed in any one of claims 1 to 9, comprising an eraser member and an eraser extension unit, wherein said eraser member is fixedly mounted on the front end of the push rod.