A push-pull eraser

Abstract

The utility model provides a kind of push-pull eraser, including shell and rubber body, the slide is equipped in shell, and rubber body is slidably matched in slide;The inner end of rubber body is equipped with seat body;The side wall of the width direction of shell is equipped with push twist slide, and push twist slide is slidably matched with push twist, and locking structure is equipped between push twist and push twist slide;The inner end of push twist is connected with spring piece, and return elastic piece is equipped between push twist and seat body;When push twist is pressed to the direction of slide with force, after push twist moves certain distance, push twist and push twist slide are unlocked each other, and push twist can slide in push twist slide to drive seat body and rubber body together in slide slide.Effectively solve the problem of button body push-pull jam, realize that button is smoothly pushed out and pulled back rubber, significantly improve user experience, operation stability and product service life.

Description

Technical Field

[0001] This utility model relates to the technical field of stationery, and more specifically to a push-pull eraser. Background Technology

[0002] Push-pull erasers, as an innovative alternative to traditional boxed erasers and ordinary erasers, are favored by consumers for their unique push-pull design. Compared to ordinary erasers, which are prone to wear and tear and easy to lose, push-pull erasers store the eraser core inside the outer shell. The eraser is pushed out and pulled back by a button, which avoids contamination caused by direct contact between the eraser and the outside world, and effectively reduces eraser wear. They are clean and convenient to use and are widely used in various scenarios such as students' daily writing and office workers' document editing.

[0003] However, in actual use, the button body, the core component of existing push-pull erasers, exhibits significant defects. During push-pull operation, the button body is not flexible enough, and it is prone to jamming when pushing out or pulling back. This jamming not only severely affects the user's smoothness of operation, making the originally convenient eraser extension and retraction operation laborious and cumbersome, reducing efficiency, but also frequently causing increased friction between the eraser core and the internal structure of the outer shell. Long-term use may lead to eraser core breakage and button malfunction, greatly impacting the overall user experience and lifespan of the push-pull eraser. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a push-pull eraser that effectively solves the problem of jamming when the button body is pushed or pulled, and realizes that the eraser can be pushed out and pulled back smoothly and flexibly, which significantly improves the user experience, operation stability and product life.

[0005] The technical solution of this utility model is to provide a push-pull eraser, including a shell and an eraser body. The shell has a slide rail, and the eraser body slides within the slide rail. The inner end of the eraser body has a seat. A push-twist slide rail is provided on the side wall of the shell in the width direction, and a push-twist slide rail is slidably engaged with the push-twist slide rail. A locking structure is provided between the push-twist and the push-twist slide rail. A spring is provided on the seat, and the inner end of the push-twist is connected to the spring. A return elastic element is provided between the push-twist and the seat. When the push-twist is pressed forcefully towards the slide rail, after the push-twist moves a certain distance, the push-twist and the push-twist slide rail unlock each other, and the push-twist can slide within the push-twist slide rail to drive the seat and the eraser body to slide together within the slide rail.

[0006] Compared with existing technologies, the automatic push-release pen of this utility model has the following advantages: The push-pull eraser cleverly utilizes the lateral space of the housing by mounting the push-button on the side wall along the width direction of the housing, significantly increasing the range of motion of the push-button and effectively avoiding jamming and operational difficulties caused by narrow space. Furthermore, the inclusion of a spring and a return elastic element further enhances the flexibility of the push-button. This structure not only makes the pressing and pushing-pull operation of the push-button smoother but also significantly improves the convenience and efficiency of product use, providing users with a comfortable and smooth user experience.

[0007] As an improvement, the spring is U-shaped, with one end fixedly connected to the base and the other end fixedly connected to the push-twist mechanism. The U-shaped elastic structure gives the spring greater deformation space and buffering capacity, effectively absorbing mechanical vibration and impact during the push-twist sliding process and preventing jamming.

[0008] As an improvement, a through hole is provided on the end face of the rear of the base, and one end of the spring plate extends into the through hole and connects with the side wall of the through hole. The through hole provides the spring plate with greater room for movement, allowing it to fully utilize the elastic deformation capability of the "U"-shaped structure during pushing and pulling, reducing stress concentration caused by excessive tightness, and avoiding jamming or breakage.

[0009] As an improvement, the end of the push knob is provided with a connecting part, which is fixedly connected to the other end of the spring piece; one side of the connecting part protrudes upward to form a convex neck, which slides within the push knob slide rail, and a button is connected to the end of the convex neck, which is exposed outside the housing. The structure is simple, easy to assemble, and allows for precise pressing operation by the user.

[0010] As an improvement, the base is provided with a support portion located below the connecting portion, and the return elastic element is installed between the connecting portion and the support portion. The structure is simple, easy to assemble, and has good overall structural stability.

[0011] As an improvement, the sidewall of the push-twist slide is a serrated strip, and the sidewall of the push-twist has a protrusion that is embedded in the groove of the serrated strip. When the push-twist is pressed forcefully towards the slide, the protrusion can disengage from the groove. The tight fit between the serrated sidewall and the protrusion effectively locks the push-twist position, preventing the eraser from accidentally sliding during use. The structure where the protrusion disengages from the groove when the push-twist is pressed provides the user with a controllable unlocking method, avoiding displacement caused by accidental touches and enabling smooth sliding when the eraser's position needs to be adjusted. This balances stability and convenience, significantly improving the user experience.

[0012] As an improvement, the housing includes a box body and a lid. Both ends of the box body have openings, and the push-to-turn slide groove also has an opening near the lid. The lid covers the opening on one side of the box body and the opening of the push-to-turn slide groove. This design facilitates product assembly, reduces production difficulty, and allows for easy disassembly of the lid during later maintenance, enabling quick inspection or replacement of internal parts, thus balancing practicality and durability.

[0013] As an improvement, the lid is provided with a first limiting piece and a second limiting piece on each side. The end of the first limiting piece abuts against the push button, and the end of the second limiting piece abuts against the base. This limits the range of motion of the push button and the base, preventing them from shifting or misaligning during use and ensuring the stability of the push button's sliding and the rubber's stretching. Simultaneously, the abutting action of the limiting pieces buffers external impacts, reducing wear caused by collisions between components, effectively protecting the push button, the base, and their connecting structures, and extending the product's lifespan. Furthermore, this limiting design makes the positions of each component more precise after the lid and box are assembled, improving the overall reliability and user experience of the product.

[0014] As an improvement, the side wall of the seat is provided with limiting ribs, which abut against the inner wall of the housing. The limiting ribs abut against the inner wall of the housing, which can limit the sliding trajectory of the seat, prevent it from deviating or shaking in the slide, and ensure the stability of the rubber body when it is pushed out and pulled back; this design also enhances the assembly tightness between the seat and the housing, and improves the overall reliability and service life of the product. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the push-pull eraser of this utility model.

[0016] Figure 2 This is a partial exploded structural diagram of the push-pull eraser of this utility model.

[0017] Figure 3 This is a cross-sectional structural diagram of the push-pull eraser of this utility model.

[0018] Figure 4 This is a schematic diagram of the partial assembly structure of the push-pull eraser of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the base, push knob, and spring of the push-pull eraser of this utility model.

[0020] As shown in the figure: 1. Rubber body, 2. Box body, 201. Push-twist slide, 202. Slide, 203. Serrated strip, 3. Box cover, 301. First limiting piece, 302. Second limiting piece, 4. Seat body, 401. Limiting rib, 402. Spring piece, 403. Through hole, 404. Support part, 405. Second spring seat, 5. Push-twist, 501. Protrusion, 502. Connecting part, 503. Protruding neck, 504. Button, 505. First spring seat, 6. Return elastic element. Detailed Implementation

[0021] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0022] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.

[0023] It should also be understood that the terms "comprising," "having," "including," and "containing," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. Furthermore, when expressions such as "...at least one" appear after a list of listed features, they modify the entire listed feature, not individual elements in the list.

[0024] like Figures 1 to 5 As shown, this utility model discloses a push-pull eraser, including a housing and an eraser body 1.

[0025] The housing includes a box body 2 and a lid 3, with openings at both ends of the box body 2. A push-to-turn slide 201 is provided on the side wall of the box body 2 in the width direction, and one end of the push-to-turn slide 201 also has an opening. The lid 3 is connected to one end of the housing, either by a snap-fit ​​or by a fastener; the lid 3 covers the opening on one side of the box body 2 and the opening of the push-to-turn slide 5. The inner cavity of the box body 2 and the opening at the other end of the box body 2 form a slide 202, within which the rubber body 1 slides.

[0026] The inner end of the rubber body 1 is provided with a seat 4, and the rubber body 1 is fixedly connected to the seat 4, or it can be detachably connected, which facilitates the replacement of the rubber body 1. The side wall of the seat 4 is provided with a limiting rib 401, which abuts against the inner wall of the housing.

[0027] The push-twist slide 201 is slidably fitted with a push-twist 5, and a locking structure is provided between the push-twist 5 and the push-twist slide 201. The sidewall of the push-twist slide 201 is a serrated strip 203. In this specific embodiment, both sides of the push-twist slide 201 have a serrated strip 203 structure. The sidewall of the push-twist 5 has a protrusion 501, which is embedded in the tooth groove of the serrated strip 203. In this specific embodiment, both sides of the push-twist 5 have a protrusion 501, and the protrusions 501 on both sides are correspondingly embedded in the tooth grooves of the serrated strips 203 on both sides. The serrated strips 203 and the protrusions 501 form the locking structure. When the push-twist 5 is pressed forcefully towards the slide 202, the protrusions 501 can disengage from the tooth grooves.

[0028] The push knob 5 has a connecting part 502 at its end. One side of the connecting part 502 protrudes upward to form a protruding neck 503. The protruding neck 503 is slidably fitted in the push knob slide 201. A button 504 is connected to the end of the protruding neck 503. The button 504 is exposed outside the housing.

[0029] The base 4 is provided with a spring piece 402, which is U-shaped. One end of the spring piece 402 is fixedly connected to the tail end face of the base 4, and the other end of the spring piece 402 is fixedly connected to the connecting part 502 of the push knob 5. The tail end face of the base 4 is provided with a through hole 403, and one end of the spring piece 402 extends into the through hole 403 and connects to the side wall of the through hole 403; the spring piece 402, the push knob 5, and the base 4 are integrally formed.

[0030] A return elastic element 6, which is a spring, is provided between the push knob 5 and the seat 4. A support portion 404 is provided at the tail of the seat 4, located below the connecting portion 502. The return spring is installed between the connecting portion 502 and the support portion 404. A first spring seat 505 is provided on the connecting portion 502, and a second spring seat 405 is provided on the support portion 404. The two ends of the return spring are respectively sleeved on the first spring seat 505 and the second spring seat 405.

[0031] The box cover 3 is provided with a first limiting piece 301 and a second limiting piece 302 on both sides respectively. The end of the first limiting piece 301 abuts against the push knob 5, and the end of the second limiting piece 302 abuts against the seat 4.

[0032] In use, the push-pull eraser of this invention allows the user to simply press the button 504, which protrudes from the outer casing of the push-touch 5. When the push-touch 5 moves to a specific position, the protrusion 501 on the side wall disengages from the serrated groove of the push-touch slide 201, unlocking the sliding restriction of the push-touch 5. At this point, the user can easily push or pull the push-touch 5 forward or backward as needed. Guided by the push-touch slide 201, the push-touch 5 drives the base 4 and the eraser body 1 to slide smoothly along the slide 202. Pushing the push-touch 5 forward causes the eraser body 1 to slowly extend out of the casing, immediately satisfying the wiping need; pushing the push-touch 5 in the opposite direction causes the eraser body 1 to retract into the casing. The entire operation is smooth and natural, requiring no effort, truly achieving a labor-saving, convenient, and efficient user experience, greatly improving user comfort and work efficiency.

[0033] The above are merely specific embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Any modifications or equivalent substitutions to this utility model without departing from its spirit and scope should be covered within the protection scope of the claims of this utility model.

Claims

1. A push-pull eraser, comprising a housing and an eraser body (1), wherein the housing is provided with a slide rail (202), and the eraser body (1) is slidably engaged within the slide rail (202); characterized in that: The inner end of the rubber body (1) is provided with a seat (4); the side wall of the shell in the width direction is provided with a push-twist slide (201), the push-twist slide (201) is slidably engaged with a push-twist (5), and a locking structure is provided between the push-twist (5) and the push-twist slide (201); the seat (4) is provided with a spring piece (402), the inner end of the push-twist (5) is connected to the spring piece (402), and a return elastic element (6) is provided between the push-twist (5) and the seat (4); when the push-twist (5) is pressed in the direction of the slide (202), after the push-twist (5) moves a certain distance, the push-twist (5) and the push-twist slide (201) unlock each other, and the push-twist (5) can slide in the push-twist slide (201) to drive the seat (4) and the rubber body (1) to slide together in the slide (202).

2. The push-pull eraser according to claim 1, characterized in that: The spring (402) is U-shaped. One end of the spring (402) is fixedly connected to the base (4), and the other end of the spring (402) is fixedly connected to the push knob (5).

3. The push-pull eraser according to claim 2, characterized in that: The end face of the tail of the seat (4) is provided with a through hole (403), and one end of the spring piece (402) extends into the through hole (403) and is connected to the side wall of the through hole (403).

4. The push-pull eraser according to claim 2, characterized in that: The push knob (5) has a connecting part (502) at its end, and the connecting part (502) is fixedly connected to the other end of the spring piece (402); one side of the connecting part (502) protrudes upward to form a protruding neck (503), the protruding neck (503) is slidably fitted in the push knob slide (201), and the end of the protruding neck (503) is connected to a button (504), the button (504) is exposed outside the housing.

5. The push-pull eraser according to claim 4, characterized in that: The seat (4) is provided with a support part (404), which is located below the connecting part (502). The return elastic member (6) is installed between the connecting part (502) and the support part (404).

6. The push-pull eraser according to claim 1, characterized in that: The sidewall of the push-torque slide (201) is a serrated strip (203), and the sidewall of the push-torque (5) is provided with a protrusion (501), which is embedded in the tooth groove of the serrated strip (203); when the push-torque (5) is pressed in the direction of the slide (202), the protrusion (501) can be dislodged from the tooth groove.

7. The push-pull eraser according to any one of claims 1 to 6, characterized in that: The housing includes a box body (2) and a box cover (3). Both ends of the box body (2) are provided with openings. The push-twist (5) groove (201) is also provided with an opening at one end near the box cover (3). The box cover (3) covers the opening on one side of the box body (2) and the opening of the push-twist (5) groove (201).

8. The push-pull eraser according to claim 7, characterized in that: The box cover (3) is provided with a first limiting piece (301) and a second limiting piece (302) on both sides respectively. The end of the first limiting piece (301) abuts against the push knob (5), and the end of the second limiting piece (302) abuts against the seat (4).

9. The push-pull eraser according to claim 1, characterized in that: The side wall of the seat (4) is provided with a limiting rib (401), which abuts against the inner wall of the shell.

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