CN216610662U

CN216610662U - Push-pull type eraser

Info

Publication number: CN216610662U
Application number: CN202123216808.8U
Authority: CN
Inventors: 徐亮志
Original assignee: Zhejiang Yizheng Cultural Supplies Co ltd
Current assignee: Zhejiang Yizheng Cultural Supplies Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-05-27
Anticipated expiration: 2031-12-17

Abstract

The utility model relates to the field of stationery, in particular to a push-pull type eraser, which comprises a base and an eraser body; the base comprises a barrel body at least the front end part of which is provided with a front side opening, and a moving seat arranged on the barrel body; the side wall of the cylinder body is provided with a sliding chute along the length direction of the side wall, and at least one side wall of the sliding chute is provided with locking teeth along the length direction of the side wall; the movable seat comprises an insertion part positioned on the inner side of the cylinder, a push-pull part positioned on the outer side of the cylinder and a neck part positioned in the sliding groove and used for connecting the insertion part and the push-pull part; the eraser body can extend into the barrel from the front opening and be inserted into the insertion part of the movable seat. Still be equipped with on the removal seat in this scheme can with the fixed joint portion of locking tooth joint, based on joint portion relative locking tooth joint or unblock to when making the removal seat can follow barrel removal regulation eraser body and use length, can fix a position the eraser body again, stable, not hard up when guaranteeing its use, it is lighter to erase the note.

Description

Push-pull type eraser

Technical Field

The utility model relates to the field of stationery, in particular to a push-pull type eraser.

Background

In daily life, the eraser is often easy to be forgotten in a certain corner, and is inconvenient to hold and pinch. Sometimes, because the eraser is frequently used, the whole eraser is exposed outside for a long time, so that the whole eraser is easy to become dirty, and the eraser is easy to erase more dirty paper when erasing handwriting; and as the volume of the eraser is smaller and smaller along with the use time, the eraser is difficult to hold, and the use of the eraser is influenced.

The existing pressing type eraser please refer to the taiwan patent with the certificate number M275963, which includes an outer tube, a pressing cap and an eraser body, wherein the pressing cap is disposed at the rear end of the outer tube, the eraser body is slidably disposed in the outer tube, when the pressing cap is pressed, the eraser body can axially move relative to the outer tube and protrude out of the outer tube, however, the eraser body can extend out of the outer tube by a small length only by pressing for many times, which is inconvenient in use.

Or the eraser described in the patent document of the Chinese utility model with the publication number "CN 202271732U", comprises an eraser body, an outer sleeve, a base, a screw rod and a lifting disc, wherein the lower end of the outer sleeve is provided with the base which can rotate relative to the outer sleeve, the screw rod is fixed in the center of the base, and the screw rod is in screw connection with the lifting disc and penetrates through the eraser body arranged on the lifting disc; the center of the rubber body is provided with a thread matched with the screw rod; the inner wall of the outer sleeve is provided with a slideway which protrudes inwards, and the side surfaces of the lifting disc and the eraser body are provided with concave slideways which are suitable for the slideways on the inner wall of the outer sleeve. When in use, the eraser can freely stretch and slide in the outer sleeve through the screw structure, but the proposal has more inconvenience.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a push-pull eraser, wherein a moving seat in the solution is provided with a clamping portion capable of being clamped and fixed with a locking tooth, and the clamping portion is clamped or unlocked relative to the locking tooth, so that the moving seat can move along a cylinder to adjust the length of the eraser body, and at the same time, the eraser body can be positioned, thereby ensuring that the eraser body is stable and not loose during use, and erasing notes are easier.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the push-pull type eraser comprises a base and an eraser body; the method is characterized in that: the base comprises a cylinder body at least the front end part of which is provided with a front opening, and a moving seat arranged on the cylinder body; the side wall of the cylinder body is provided with a strip-shaped opening along the length direction of the side wall, and at least one side wall of the strip-shaped opening is provided with locking teeth along the length direction of the side wall; the movable seat comprises an insertion part positioned on the inner side of the cylinder, a push-pull part positioned on the outer side of the cylinder and a neck part positioned in the strip-shaped opening and used for connecting the insertion part and the push-pull part; the eraser body can extend into the barrel from the front side opening and is inserted into the insertion part of the movable seat; the movable seat is provided with a clamping part which can be fixedly clamped with the locking teeth, and the movable seat is positioned in the strip-shaped opening when the clamping part is fixedly clamped with the locking teeth; when joint portion and locking tooth unblock, remove the seat and can follow the bar opening and remove.

The utility model adopts the technical scheme, and relates to a push-pull type eraser which comprises a base and an eraser body. The base comprises a cylinder and a movable seat capable of sliding along the cylinder, and an insertion part of the movable seat in the cylinder can be used for connecting the eraser body; the push-pull part of the movable seat, which is positioned at the outer side of the cylinder body, is used for a user to push, pull and apply force to drive the movable seat and the eraser body on the movable seat to telescopically slide relative to the base; the neck of the movable seat is arranged in the strip-shaped opening, so that the movable seat guides sliding on one hand and is also used for connecting the plug part and the push-pull part on the other hand.

On this basis, be equipped with on the removal seat in this scheme can with the fixed joint portion of locking tooth joint, based on relative locking tooth joint of joint portion or unblock to make the removal seat can follow the barrel and remove when adjusting the eraser body and use length, can fix a position the eraser body again, stable when guaranteeing its use, not hard up, it is lighter to erase the note.

Preferably, the clamping part comprises an elastic arm connected to the neck of the movable seat, and the free end parts of the elastic arm are respectively provided with a clamping hook capable of being clamped with the locking teeth; the movable base is movably connected with a locking block, and the locking block can apply force to the elastic arm in a moving path relative to the movable base, so that the clamping hook on the free end of the elastic arm is close to or far away from the locking tooth relative to the locking tooth. In the technical scheme, a locking block is movably connected to a movable seat. The user needs to lock the length of the eraser to act on the locking block, and the locking block acts on the elastic arm to deform the elastic arm, so that the hook on the free end of the elastic arm is close to the locking tooth to be locked. When the length of the eraser needs to be adjusted, the eraser also needs to act on the locking block, so that the locking block does not act on the elastic arm, and the elastic arm is elastically reset to realize unlocking.

In a further scheme, locking teeth are arranged on two side walls of the strip-shaped opening along the length direction of the strip-shaped opening, the clamping part comprises two elastic arms, and the distance between the two elastic arms is gradually reduced from the connecting end to the free end; the locking block is movably arranged on the clamping portion and comprises a pressing portion located between the two elastic arms. When the locking block moves relative to the moving seat, the pressing part moves between the connecting end and the free end. The width of the pressing part is larger than the distance between the free ends of the two elastic arms but smaller than the distance between the connecting ends of the two elastic arms. When the pressing part is positioned between the free ends of the two elastic arms, the pressing part applies force to the elastic arms at the two sides to enable the clamping hooks at the free ends of the elastic arms to be locked relative to the locking teeth, namely, the pressing part props open the free ends of the elastic arms at the two sides to realize locking of the clamping hooks relative to the locking teeth. When the pressing part is positioned between the connecting ends of the two elastic arms, the clamping hook is unlocked relative to the locking tooth based on the elasticity of the elastic arms.

Preferably, a sliding groove is formed on the neck of the movable seat, and the locking block is connected and arranged in the sliding groove. In the specific scheme, sliding grooves are formed in two side walls of the neck of the moving seat, and a blocking wall is arranged at the front end part of each sliding groove; the locking block is provided with two connecting arms extending forwards, and the free ends of the two connecting arms are provided with sliding hook parts; two connecting arms of the locking block are respectively arranged on two sides of the neck of the movable seat, and a sliding hook part on the locking block is embedded into the sliding groove and can move along the sliding groove. In the scheme, the locking block can move along the sliding groove relative to the moving seat, and enters the control card hook to be locked or released relative to the locking teeth. And two connecting arms of the locking block are respectively arranged on two sides of the neck of the movable seat, so that the locking block can be connected with the movable seat without separation. The blocking wall can limit the sliding hook part to pass through, so that the locking block is prevented from being separated from the moving seat.

Preferably, the top surface of the push-pull part is provided with an antiskid projection which can prevent skidding when pushing, pulling and applying force.

Preferably, the inner wall of the cylinder body is provided with a plurality of guide protrusions arranged along the direction of the strip-shaped opening, the insertion part of the movable seat is provided with a guide groove matched with the guide protrusions, or the side wall of the insertion part of the movable seat can be matched and embedded between two adjacent guide protrusions. The guide bulge and the guide groove are used for guiding the movable seat when the movable seat is installed in the cylinder body on one hand, and are used for avoiding the movable seat from being assembled and loosened in the cylinder body on the other hand.

Preferably, the rear end part of the cylinder body is provided with a rear opening, and an end cover is connected to the rear opening of the cylinder body; the front end part of the strip-shaped opening on the side wall of the cylinder body is closed, and the rear end part of the strip-shaped opening extends to the opening of the rear side. In the technical scheme, the movable seat is sealed through the end cover after being installed into the barrel through the opening at the rear side of the barrel. The front end part of the strip-shaped opening is closed, so that the maximum extension length of the eraser is limited, and the eraser can be prevented from being completely pushed out when in use.

In a further scheme, a hanging ring is constructed on the end cover, and the whole push-pull eraser can be hung on the hanging ring to avoid loss.

Drawings

Fig. 1 is a three-dimensional structure view of the push-pull type eraser.

Fig. 2 is an exploded view of the structure of the push-pull eraser.

Fig. 3 is a schematic view of the cartridge structure.

Fig. 4 is a first schematic view of the assembly of the movable seat and the locking block.

Fig. 5 is a second schematic view of the assembly of the movable seat and the locking block.

FIG. 6 is a schematic view of the movable base locked with respect to the barrel.

Fig. 7 is a schematic view of the movable seat moving relative to the cylinder.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

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

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. 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 the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in figures 1-7, the present embodiment relates to a push-pull eraser comprising a base and an eraser body 1. The base comprises a cylinder 2 provided with a front opening 23 at least at the front end portion, and a movable seat 3 provided on the cylinder 2. The side wall of the cylinder body 2 is provided with a strip-shaped opening 21 along the length direction, and at least one side wall of the strip-shaped opening 21 is provided with a locking tooth 22 along the length direction. The movable seat 3 comprises an insertion part 31 at the inner side of the cylinder 2, a push-pull part 32 at the outer side of the cylinder 2, and a neck part 33 in the strip-shaped opening 21 for connecting the insertion part 31 and the push-pull part 32. The eraser body 1 can extend into the barrel 2 from the front opening 23 and be inserted into the insertion part 31 of the movable seat 3, the top surface of the push-pull part 32 is provided with the anti-skid protrusions 321, and the anti-skid protrusions 321 can prevent skidding during pushing, pulling and applying force.

The technical scheme relates to a push-pull type eraser which comprises a base and an eraser body 1. The base comprises a cylinder 2 and a movable seat 3 capable of sliding along the cylinder 2, and an insertion part 31 of the movable seat 3 in the cylinder 2 can be used for connecting the eraser body 1. The push-pull part 32 of the movable seat 3, which is positioned outside the cylinder 2, is pushed and pulled by a user to apply force, so as to drive the movable seat 3 and the eraser body 1 thereon to telescopically slide relative to the base. The neck 33 of the mobile seat 3 is located in the strip-shaped opening 21, on the one hand to guide the sliding movement and on the other hand also to connect the plug-in part 31 and the push-pull part 32.

On this basis, be equipped with on the removal seat 3 and can with the fixed joint portion of locking tooth 22 joint, when joint portion and locking tooth 22 joint are fixed, remove seat 3 location at bar opening 21. When the clamping portion is unlocked from the locking teeth 22, the movable seat 3 can move along the strip-shaped opening 21. This scheme is based on the relative locking tooth 22 joint of joint portion or unblock to make and remove seat 3 and can move along barrel 2 and adjust the eraser body 1 length of using, can fix a position the eraser body again, stable when guaranteeing its use, not hard up, it is lighter to erase the note.

As shown in fig. 4 or 5, the locking portion includes an elastic arm 34 connected to the neck 33 of the movable base 3, and the free ends 34a of the elastic arm 34 are provided with hooks 35 capable of locking with the locking teeth 22. The movable base 3 is movably connected with a locking block 4, and the locking block 4 can apply force to the elastic arm 34 in a moving path relative to the movable base 3, so that the hook 35 on the free end 34a of the elastic arm 34 is close to or away from the locking tooth 22. In the technical scheme, a locking block 4 is movably connected to a movable seat 3. The user needs to lock the length of the eraser so as to act on the locking block 4, and the locking block 4 acts on the elastic arm 34 to deform the elastic arm, so that the hook 35 on the free end 34a is locked close to the locking tooth 22. When the length of the eraser needs to be adjusted, the eraser also needs to act on the locking block 4, so that the locking block 4 does not act on the elastic arm 34, and the elastic arm 34 is elastically reset to realize unlocking. In a specific scheme, the locking teeth 22 are arranged on two side walls of the strip-shaped opening 21 along the length direction thereof, the clamping portion comprises two elastic arms 34, and the distance between the two elastic arms 34 is gradually reduced from the connecting end 34b to the free end 34 a. The locking block 4 is movably arranged on the clamping portion, and the locking block 4 comprises a pressing portion 41 between the two elastic arms 34. When the locking block 4 moves relative to the movable base 3, the pressing portion 41 moves between the connecting end 34b and the free end 34 a. The width of the pressing portion 41 is greater than the distance between the free ends 34a of the two elastic arms 34 but less than the distance between the connecting ends 34b of the two elastic arms 34. When the pressing portion 41 is located between the free ends 34a of the two elastic arms 34, the pressing portion 41 applies force to the two elastic arms 34 to lock the hooks 35 on the free ends 34a of the elastic arms 34 with respect to the locking teeth 22, that is, the pressing portion 41 stretches the free ends 34a of the two elastic arms 34 apart to lock the hooks 35 with respect to the locking teeth 22. When the pressing portion 41 is located between the connecting ends 34b between the two elastic arms 34, the hook 35 is unlocked from the locking tooth 22 based on the elasticity of the elastic arms 34.

As shown in fig. 4 or 5, a sliding groove 331 is formed on the neck 33 of the movable seat 3, and the locking block 4 is connected and disposed in the sliding groove 331. In a specific embodiment, the two side walls of the neck 33 of the movable seat 3 are respectively formed with a sliding slot 331, and the front end of the sliding slot 331 is provided with a blocking wall 332. The locking block 4 is provided with two connecting arms 42 extending forwards, and the free ends 34a of the two connecting arms 42 are provided with sliding hook parts 43. The two connecting arms 42 of the locking block 4 are respectively disposed on both sides of the neck portion 33 of the movable base 3, and the sliding hook 43 thereof is inserted into the sliding slot 331 and can move along the sliding slot 331. In this embodiment, the locking block 4 can move along the slide slot 331 relative to the movable base 3, and the access control hook 35 is locked or unlocked relative to the locking tooth 22. Furthermore, the two connecting arms 42 of the locking block 4 are respectively arranged on the two sides of the neck portion 33 of the movable base 3, so that the locking block 4 and the movable base 3 can be connected without being separated. The blocking wall 332 is able to limit the passage of the sliding hook 43, thus preventing the locking block 4 from disengaging from the mobile seat 3.

As shown in fig. 2 and 3, the rear end of the cylinder 2 is provided with a rear opening 24, and the end cap 5 is connected to the rear opening 24 of the cylinder 2. The front end of the sliding groove 331 on the side wall of the cylinder 2 is closed, and the rear end extends to the rear opening 24. In this embodiment, the movable base 3 is installed in the cylinder 2 through the rear opening 24 of the cylinder 2 and then closed by the end cap 5. The front end of the sliding groove 331 is closed to limit the maximum extension length of the eraser, so that the eraser can be prevented from being completely pushed out during use. In a further scheme, a hanging ring 51 is constructed on the end cover 5, and the hanging ring 51 can connect the whole push-pull eraser with a hanging belt, so that the eraser is prevented from being lost.

As shown in fig. 3, the inner wall of the cylinder 2 is provided with a plurality of guiding protrusions 25 arranged along the direction of the strip-shaped opening 21, and the insertion part 31 of the movable seat 3 is provided with a guiding groove adapted to the guiding protrusions 25, or the side wall of the insertion part 31 of the movable seat 3 can be adapted to be embedded between two adjacent guiding protrusions 25. The guide projections 25 and the guide grooves are intended, on the one hand, to guide the movable seat 3 during the insertion into the cylinder 2 and, on the other hand, to prevent the movable seat 3 from becoming loose during the assembly inside the cylinder 2.

When the push-pull type eraser is assembled, the end cover 5 is firstly taken down from the rear opening 24 of the cylinder body 2, the movable seat 3 is pushed out from the rear opening 24 of the cylinder body 2, and then the eraser body is arranged on the insertion part 31 of the movable seat 3; and then, the eraser body and the moving seat 3 are pushed into the barrel 2 from the rear side opening 24, and the locking block 4 is operated to lock after moving along the barrel 2 and adjusting to a proper eraser extension length, and the upper end cover 5 is covered. In the subsequent use process, the length of the eraser can be adjusted by only operating the locking block 4 and the push-pull part 32.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims

1. The push-pull type eraser comprises a base and an eraser body (1); the method is characterized in that: the base comprises a cylinder (2) at least the front end of which is provided with a front opening (23), and a movable seat (3) arranged on the cylinder (2); a strip-shaped opening (21) is formed in the side wall of the barrel (2) along the length direction of the barrel, and locking teeth (22) are arranged on at least one side wall of the strip-shaped opening (21) along the length direction of the barrel; the movable seat (3) comprises an insertion part (31) positioned on the inner side of the barrel body (2), a push-pull part (32) positioned on the outer side of the barrel body (2), and a neck part (33) positioned in the strip-shaped opening (21) and used for connecting the insertion part (31) with the push-pull part (32); the eraser body (1) can extend into the barrel body (2) from the front opening (23) and is inserted into the insertion part (31) of the movable seat (3); a clamping part capable of being fixedly clamped with the locking teeth (22) is arranged on the movable seat (3), and when the clamping part is fixedly clamped with the locking teeth (22), the movable seat (3) is positioned in the strip-shaped opening (21); when the clamping portion is unlocked with the locking teeth (22), the movable seat (3) can move along the strip-shaped opening (21).

2. A push-pull eraser according to claim 1, wherein: the clamping part comprises elastic arms (34) connected to the neck part (33) of the moving seat (3), and the free ends (34 a) of the elastic arms (34) are respectively provided with a clamping hook (35) which can be clamped with the locking teeth (22); the movable base (3) is movably connected with a locking block (4), the locking block (4) can apply force to the elastic arm (34) in a moving path relative to the movable base (3), and a clamping hook (35) on the free end (34 a) of the elastic arm (34) is close to or far away from the locking tooth (22) relatively.

3. A push-pull eraser according to claim 2, wherein: the locking teeth (22) are arranged on two side walls of the strip-shaped opening (21) along the length direction of the strip-shaped opening, the clamping portion comprises two elastic arms (34), and the distance between the two elastic arms (34) is gradually reduced from the connecting end (34 b) to the free end (34 a); the locking block (4) is movably arranged on the clamping part, and the locking block (4) comprises a pressing part (41) positioned between the two elastic arms (34); when the locking block (4) moves relative to the moving seat (3), the pressing part (41) moves between the connecting end (34 b) and the free end (34 a); when the pressing part (41) is positioned between the free ends (34 a) of the two elastic arms (34), the pressing part (41) applies force to the elastic arms (34) at two sides to enable the clamping hooks (35) on the free ends (34 a) of the elastic arms (34) to be locked relative to the locking teeth (22); when the pressing part (41) is positioned between the connecting ends (34 b) between the two elastic arms (34), the clamping hook (35) is unlocked relative to the locking tooth (22) based on the elasticity of the elastic arms (34).

4. A push-pull eraser according to claim 2, wherein: a strip-shaped opening (21) is formed in the neck (33) of the movable seat (3), and the locking block (4) is connected and arranged in the strip-shaped opening (21).

5. A push-pull eraser according to claim 4, wherein: strip-shaped openings (21) are formed in the two side walls of the neck (33) of the movable seat (3), and a blocking wall (332) is arranged at the front end part of each strip-shaped opening (21); the locking block (4) is provided with two connecting arms (42) in a forward extending mode, and the free ends (34 a) of the two connecting arms (42) are provided with sliding hook parts (43); two connecting arms (42) of the locking block (4) are respectively arranged at two sides of a neck (33) of the moving seat (3), and a sliding hook part (43) on the two connecting arms is embedded into the strip-shaped opening (21) and can move along the strip-shaped opening (21); the stopper wall (332) can restrict the passage of the slide hook (43).

6. A push-pull eraser according to claim 1, wherein: the top surface of the push-pull part (32) is provided with an anti-skid bulge (321).

7. A push-pull type eraser according to claim 1, characterized in that: the inner wall of the barrel body (2) is provided with a plurality of guide protrusions (25) arranged along the direction of the sliding groove (331), the insertion part (31) of the movable seat (3) is provided with a guide groove matched with the guide protrusions (25), or the side wall of the insertion part (31) of the movable seat (3) can be matched and embedded between two adjacent guide protrusions (25).

8. A push-pull eraser according to claim 1, wherein: a rear opening (24) is formed in the rear end of the barrel (2), and an end cover (5) is connected to the rear opening (24) of the barrel (2); the front end part of the sliding groove (331) on the side wall of the barrel body (2) is closed, and the rear end part of the sliding groove extends to the rear side opening (24).

9. A push-pull eraser according to claim 8, wherein: a hanging ring (51) is constructed on the end cover (5).