A roll-up stationery with automatic unlocking by pushing the nozzle

Abstract

The present invention discloses a winding-type stationery with a push nozzle that can automatically unlock, comprising a shell, a replacement core, a pressure nozzle, a belt-discharging wheel, a belt-receiving wheel, a first toothed circumference, a second toothed circumference, a first elastic rib and a second elastic rib, and the shell is provided with a first push rib and a second push rib. The present invention restricts the reverse rotation of the belt-discharging wheel by engaging the first toothed circumference with the first elastic rib, and restricts the reverse rotation of the belt-receiving wheel by engaging the second toothed circumference with the second elastic rib, that is, both the belt-discharging wheel and the belt-receiving wheel are in a locked wheel state, so that the correction belt body will not easily loosen when it is in a state such as transportation; by pushing the mobile control mechanism, the first push rib and the second push rib respectively squeeze the first elastic rib and the second elastic rib, so that the first elastic rib is separated from the first toothed circumference and the second elastic rib is separated from the second toothed circumference, that is, the belt-discharging wheel and the belt-receiving wheel are in an unlocked state, which is convenient for smooth belt stripping.

Description

Technical Field

[0001] The invention relates to the technical field of stationery, in particular to a winding stationery with a push nozzle that automatically unlocks. Background Art

[0002] Correction tape is an indispensable product in modern office and study. It is gradually replacing traditional correction fluid and becoming the mainstream correction product because of its advantages of fast and clean correction, smooth surface, environmental protection and non-toxicity. There are many styles of correction tape, such as square, round, pen and other different shapes. Among them, pen-shaped correction tape is favored by primary and secondary school students because of its advantages of being slim and easy to hold.

[0003] A Chinese utility model patent (CN201520330338.3) discloses a retractable pen-shaped correction tape, including a shell, a correction tape body, a winding mechanism, a nozzle and a mounting block. The shell is provided with an extension port for the nozzle to extend or retract. The correction tape body bypasses the nozzle and is connected to the winding mechanism. The winding mechanism and the nozzle are fixedly mounted on the mounting block. The mounting block is movably arranged in the shell in a manner that it can reciprocate in the direction of the extension port. The shell is provided with a moving control mechanism that controls the reciprocating movement of the mounting block, and its control component extends out of the shell. The above-mentioned correction tape only needs the user to gently operate the moving control mechanism to realize the nozzle extending or retracting the shell, and has the advantages of easy operation, simple structure and reasonable design. However, the above-mentioned correction tape body is prone to rewinding and loosening during transportation.

[0004] In view of this, the inventor of this case conducted in-depth research on the above-mentioned issues, which resulted in this case. Summary of the invention

[0005] The object of the present invention is to provide a roll-up stationery with a push nozzle that can automatically unlock, so as to solve the problem in the prior art that the correction belt body is easy to loosen, causing inconvenience in use.

[0006] In order to achieve the above object, the present invention adopts such technical solution:

[0007] A winding-type stationery with automatic unlocking by pushing the nozzle comprises a shell, a replacement core, a pressure nozzle installed on the replacement core, a first limiting structure for limiting the rotation of the tape delivery wheel, and a second limiting structure for limiting the rotation of the tape take-up wheel, the shell is provided with an extension opening for the pressure nozzle to extend or retract into the shell, the replacement core is movably arranged in the shell in a manner that it can reciprocate in the direction of the extension opening, the replacement core comprises a mounting block, and a correction tape body and a winding-up mechanism installed on the mounting block, the winding-up mechanism comprises a tape delivery wheel and a tape take-up wheel, and a gear mechanism that drives the tape take-up wheel to rotate as the tape delivery wheel rotates, the first limiting structure A limiting structure includes a first toothed circumferential portion coaxially arranged with the tape output wheel and a first elastic rib for limiting the movement of the first toothed circumferential portion; the second limiting structure includes a second toothed circumferential portion coaxially arranged with the tape take-up wheel and a second elastic rib for limiting the movement of the second toothed circumferential portion; a first pushing rib that promotes elastic deformation of the first elastic rib until the first elastic rib is separated from the first toothed circumferential portion is arranged at a position of the shell corresponding to the first elastic rib; and a second pushing rib that promotes elastic deformation of the second elastic rib until the second elastic rib is separated from the second toothed circumferential portion is arranged at a position corresponding to the second elastic rib.

[0008] Preferably, the mounting block includes a first mounting plate and a second mounting plate that are interlocked with each other, the correction belt body and the winding mechanism are both arranged between the first mounting plate and the second mounting plate, the gear mechanism is installed between the first mounting plate and the tape-out wheel and the tape-receiving wheel, the pressure nozzle is fixedly installed between the first mounting plate and the second mounting plate, and the operating end of the pressure nozzle extends out of the replacement core.

[0009] Preferably, the first toothed circumferential portion is installed between the belt-out pulley and the second mounting plate, and the second toothed circumferential portion is installed between the belt-taking pulley and the second mounting plate.

[0010] Preferably, the first tooth-profile circumferential portion and the second tooth-profile circumferential portion are both in the form of an inner circumferential tooth profile or an outer circumferential tooth profile, a partial tooth profile or a closed-loop continuous tooth profile.

[0011] Preferably, a first movable groove is opened on the second mounting plate at a position corresponding to the first toothed circumference, and the second elastic rib is arranged in the first movable groove; a second movable groove is opened on the second mounting plate at a position corresponding to the second toothed circumference, and the second elastic rib is arranged in the second movable groove.

[0012] Preferably, the first elastic rib has a first free end and a first connecting end connected to the groove wall of the first movable groove, the first free end is provided with a first elastic rib lock buckle and a first protrusion which is conducive to engaging with the tooth shape of the first toothed circumferential portion, the first elastic rib lock buckle extends in a direction away from the first mounting plate, and the first protrusion extends in the direction of the first mounting plate; the second elastic rib has a second free end and a second connecting end connected to the groove wall of the second movable groove, the second free end is provided with a second elastic rib lock buckle and a second protrusion which is conducive to engaging with the tooth shape of the second toothed circumferential portion, the second elastic rib lock buckle extends in a direction away from the first mounting plate, and the second protrusion extends in the direction of the first mounting plate.

[0013] Preferably, the first protrusion and the first toothed circumferential portion have a first tooth-shaped tooth convexly arranged on the mating surface thereof for facilitating engagement with the first toothed circumferential portion, and the second protrusion and the second toothed circumferential portion have a second tooth-shaped tooth convexly arranged on the mating surface thereof for facilitating engagement with the second toothed circumferential portion.

[0014] Preferably, the first elastic rib is arranged along the tangential direction of the first tooth-shaped circumferential portion or in a direction close to the tangential direction, and the second elastic rib is arranged along the tangential direction of the second tooth-shaped circumferential portion or in a direction close to the tangential direction.

[0015] Preferably, a supporting convex strip for supporting the refill away from the shell is convexly provided on one side of the shell corresponding to the second mounting plate, and a convex block matched with the supporting convex strip is provided on the second mounting plate.

[0016] By adopting the above-mentioned design scheme, the beneficial effects of the present invention are as follows: the first toothed circumference and the first elastic rib are engaged to limit the reverse rotation of the belt-out wheel fixed with the first toothed circumference, and the second toothed circumference and the second elastic rib are engaged to limit the reverse rotation of the belt-receiving wheel fixed with the second toothed circumference, that is, the belt-out wheel and the belt-receiving wheel are both in a locked wheel state, so that the correction belt body will not easily loosen when it is in a state such as transportation; by pushing the mobile control mechanism, the first pushing rib and the second pushing rib are respectively squeezed by the first elastic rib and the second elastic rib, so that the teeth of the first elastic rib are separated from the first toothed circumference and the teeth of the second elastic rib are separated from the second toothed circumference, that is, the belt-out wheel and the belt-receiving wheel are in an unlocked state, and the belt can be normally used. The present invention can lock the correction belt body through the first elastic rib, the second elastic rib, the first toothed circumference and the second toothed circumference, so that the correction belt body will not loosen, and by pushing the mobile control mechanism, the lock of the correction belt can be automatically unlocked, which is convenient for smooth belt stripping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 This is an exploded view of the refill in the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the second housing and the second mounting plate cooperating with each other in the present invention;

[0020] Figure 4 is an exploded view of the second housing and the second mounting plate in the present invention;

[0021] In the figure: shell 1, first shell 11, second shell 12, supporting convex strip 121, extension port 13, first push rib 14, second push rib 15, convex block 16, replacement core 2, first mounting plate 21, second mounting plate 22, first movable groove 221, second movable groove 222, first elastic rib 23, first free end 231, first elastic rib lock 2311, first convex particle 2312, first connecting end 232, second elastic rib 24, second free end 241, second elastic rib lock 2411, second convex particle 2412, second connecting end 242, pressure nozzle 3, first toothed circumferential portion 41, second toothed circumferential portion 42. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Reference Figures 1 to 4

[0024] A roll-up stationery with automatic unlocking by pushing a nozzle comprises a housing 1, a refill 2 and a pressure nozzle 3 mounted on the refill 2. The housing 1 is provided with an extension opening 13 for the pressure nozzle 3 to extend or retract into the housing 1. The refill 2 is movably arranged in the housing 1 in a manner that it can reciprocate toward the extension opening 13. The housing 1 is in a long strip shape and comprises a first housing 11 and a second housing 12 that are buckled together by a snap-fit ​​structure. It is worth noting that the housing 1 can also be other common structures in the industry.

[0025] The first housing 11 is provided with a movement control mechanism for controlling the refill 2 to reciprocate, and its control components extend out of the housing 1. Specifically, the movement control mechanism can be the movement control mechanism available on the market (such as Chinese utility model patent CN204687662U), which will not be described here.

[0026] The replacement core 2 includes a mounting block, a correction tape body (not shown in the figure) mounted on the mounting block, and a winding mechanism, wherein the winding mechanism has a delivery wheel and a take-up wheel for winding the correction tape body, and a gear mechanism that drives the take-up wheel to rotate as the delivery wheel rotates. The winding mechanism is a well-known technology and will not be described here. The correction tape body is wound around the delivery wheel, and the head end of the correction tape body bypasses the pressure nozzle 3 to the take-up wheel.

[0027] The second shell 12 is provided with a supporting convex strip 121 for supporting the refill 2 from the second shell 12, and the second mounting plate 22 (described in detail below) is provided with a convex block 16 that matches the supporting convex strip 121. The convex block 16 is provided in the middle of the second mounting plate 22 along the length direction, and the convex block 16 extends along the direction of the second shell 12. There can be multiple convex blocks 16. Specifically, in the present invention, there can be two convex blocks 16. By utilizing the cooperation between the supporting convex strip 121 and the convex block 16, the wear on the shell 1 when the refill 2 moves can be reduced, and the movement of the refill 2 can be smoother. The mounting block of the refill 2 of the present invention is composed of a first mounting plate 21 and a second mounting plate 22 that are interlocked with each other, which can facilitate the replacement of the correction tape body or the replacement of the winding mechanism, bring convenience to use, and the design is more reasonable. Specifically, the first mounting plate 21 and the second mounting plate 22 can be detachably matched by means of positioning holes and positioning columns. It is worth noting that, in addition to the above-mentioned combination of positioning holes and positioning columns, other conventional buckle structures may also be used.

[0028] Furthermore, the correction belt body and the winding mechanism are both installed between the first mounting plate 21 and the second mounting plate 22, and the gear mechanism is installed between the first mounting plate 21 and the tape-out wheel and the tape-receiving wheel, the pressure nozzle 3 is fixedly installed between the first mounting plate 21 and the second mounting plate 22, and the operating end of the pressure nozzle 3 extends out of the replacement core 2.

[0029] The present invention also includes a first limiting structure for limiting the rotation of the belt-out wheel and a second limiting structure for limiting the rotation of the belt-receiving wheel, wherein the first limiting structure includes a first toothed circumferential portion 41 coaxially arranged with the belt-out wheel and a first elastic rib 23 for limiting the movement of the first toothed circumferential portion 41, and the first toothed circumferential portion 41 is located between the belt-out wheel and the second mounting plate 22; the second limiting structure includes a second toothed circumferential portion 42 coaxially arranged with the belt-receiving wheel and a second elastic rib 24 for limiting the movement of the second toothed circumferential portion 42, and the second toothed circumferential portion 42 is located between the belt-receiving wheel and the second mounting plate 22. The first toothed circumferential portion 41 and the second toothed circumferential portion 42 can both be in the form of an inner circumferential tooth profile or an outer circumferential tooth profile, a partial tooth profile or a closed-loop continuous tooth profile. In this embodiment, the first toothed circumferential portion 41 and the second toothed circumferential portion 42 are both in the form of a closed-loop continuous tooth profile, and the outer circumferential edge of the closed-loop continuous tooth profile is in the form of an outer circumferential tooth profile.

[0030] The second mounting plate 22 is provided with a first movable groove 221 at a position corresponding to the first toothed circumferential portion 41. The first elastic rib 23 is arranged in the first movable groove 221. The first elastic rib 23 has a first free end 231 and a first connecting end 232 connected to the groove wall of the first movable groove 221. The first free end 231 is provided with a first elastic rib lock 2311 and a first convex particle 2312 which is conducive to engaging with the toothed shape of the first toothed circumferential portion 41. The first elastic rib lock 2311 extends in the direction of the second housing 12, and the first convex particle 2312 extends in the direction of the first housing 11. The second mounting plate 22 is provided with a second movable groove 222 at a position corresponding to the second toothed circumferential portion 42, and the second elastic rib 24 is arranged in the second movable groove 222. The second elastic rib 24 has a second free end 241 and a second connecting end 242 connected to the groove wall of the second movable groove 222. The second free end 241 is provided with a second elastic rib lock 2411 and a second protrusion 2412 that is conducive to engaging with the tooth profile of the second toothed circumferential portion 42. The second elastic rib lock 2411 extends in the direction of the second shell 12, and the second protrusion 2412 extends in the direction of the first shell 11. It should be noted that tooth-shaped teeth are convexly provided on the mating surfaces of the first protrusion 2312 and the second protrusion 2412 with the toothed disc to facilitate engagement. Specifically, the first elastic rib 23 is arranged along the tangential direction of the first tooth-shaped circular portion 41 or close to the tangential direction, and the second elastic rib 24 is arranged along the tangential direction of the second tooth-shaped circular portion 42 or close to the tangential direction. The shape and size of the first movable groove 221 only need to be compatible with the shape, size, elastic range of activity, etc. of the first elastic rib 23, and the shape and size of the second movable groove 222 only need to be compatible with the shape, size, elastic range of activity, etc. of the second elastic rib 24.

[0031] The position of the second shell 12 corresponding to the first elastic rib lock 2311 is provided with a first push rib 14 that promotes the elastic deformation of the first elastic rib 23 to the separation of the first protrusion 2312 from the tooth profile of the first tooth profile circumferential portion 41, and the position of the second shell 12 corresponding to the second elastic rib lock 2411 is provided with a second push rib 15 that promotes the elastic deformation of the second elastic rib 24 to the separation of the second protrusion 2412 from the tooth profile of the second tooth profile circumferential portion 42. The first push rib 14 and the second push rib 15 are provided on the inner side wall of the second shell 12 and are provided along the length direction of the second shell 12.

[0032] The state in which the pressure nozzle 3 is arranged in the first housing 1 is taken as the initial state. In this initial state, the first protrusion 2312 is engaged with the first toothed circumferential portion 41, thereby limiting the belt-out wheel fixed with the first toothed circumferential portion 41 from rotating in the reverse direction in the direction causing the correction belt body on the belt-out wheel to loosen, thereby preventing the correction belt body from loosening, that is, the belt-out wheel is in a locked wheel state. Similarly, the second protrusion 2412 is engaged with the second toothed circumferential portion 42, thereby limiting the belt-receiving wheel fixed with the second toothed circumferential portion 42 from rotating in the reverse direction in the direction causing the correction belt body on the belt-receiving wheel to loosen, thereby preventing the correction belt body from loosening, that is, the belt-receiving wheel is in a locked wheel state. When both the belt-out wheel and the belt-receiving wheel are in the locked wheel state, the correction belt body will not easily loosen even in a state such as transportation.

[0033] When it is needed, the moving control mechanism is pushed to move the mounting block in the direction of the nozzle 3, that is, the first pushing rib 14 presses the first elastic rib lock buckle 2311 in the direction away from the nozzle 3, thereby causing the first elastic rib 23 to undergo elastic deformation, thereby achieving the tooth-shaped teeth of the first protrusion 2312 to disengage from the first tooth-shaped circumferential portion 41, that is, the tape delivery wheel is in an unlocked state; similarly, the second pushing rib 15 presses the second elastic rib lock buckle 2411 in the direction away from the nozzle 3, thereby causing the second elastic rib 24 to undergo elastic deformation, thereby achieving the tooth-shaped teeth of the second protrusion 2412 to disengage from the second tooth-shaped circumferential portion 42, that is, the tape take-up wheel is in an unlocked state. During the use of the correction tape, the first protrusion 2312 and the second protrusion 2412 are always limited to the first pushing rib 14 and the second pushing rib 15, and the tape delivery wheel and the tape take-up wheel are always in an unlocked state, so as to facilitate the use of the correction tape scratching function.

[0034] By adopting the above-mentioned design scheme, the beneficial effects of the present invention are as follows: by engaging the toothed teeth of the first protrusion 2312 with the first toothed circumferential portion 41 and the toothed teeth of the second protrusion 2412 with the second toothed circumferential portion 42, the reverse rotation of the tape output wheel and the reverse rotation of the tape take-up wheel are restricted, that is, the tape output wheel and the tape take-up wheel are both in a locked wheel state, thereby preventing the correction belt body from loosening; by pushing the movement control mechanism, the first pushing rib 14 and the second pushing rib 15 squeeze the first elastic rib lock buckle 2311 and the second elastic rib lock buckle 2411 respectively, and the first elastic rib 23 and the second elastic rib 24 undergo elastic deformation, so that the toothed teeth of the first protrusion 2312 are disengaged from the first toothed circumferential portion 41 and the toothed teeth of the second protrusion 2412 are disengaged from the second toothed circumferential portion 42, that is, the tape output wheel and the tape take-up wheel are in an unlocked state, and the tape can be used normally. The present invention can lock the correction tape body through the first elastic rib 23, the second elastic rib 24, the first elastic rib lock buckle 2311, the second elastic rib lock buckle 2411, the first protrusion 2312, the second protrusion 2412, the first toothed circular portion 41 and the second toothed circular portion 42, so that the correction tape body will not loosen during transportation and other conditions. By pushing the mobile control mechanism, the lock of the correction tape can be automatically unlocked, which is convenient for smooth tape drawing.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roll-up stationery with a push nozzle that automatically unlocks, comprising a shell, a refill and a pressure nozzle mounted on the refill, the shell being provided with an extension opening for the pressure nozzle to extend or retract into the shell, the refill being movably arranged in the shell in a manner that it can reciprocate toward the extension opening, the refill comprising a mounting block and a correction tape body and a winding mechanism mounted on the mounting block, the winding mechanism comprising a tape delivery wheel and a tape take-up wheel and a gear mechanism that drives the tape take-up wheel to rotate as the tape delivery wheel rotates, characterized in that: The invention also includes a first limiting structure for limiting the rotation of the tape output wheel and a second limiting structure for limiting the rotation of the tape take-up wheel, the first limiting structure including a first toothed circumferential portion coaxially arranged with the tape output wheel and a first elastic rib for limiting the movement of the first toothed circumferential portion, the second limiting structure including a second toothed circumferential portion coaxially arranged with the tape take-up wheel and a second elastic rib for limiting the movement of the second toothed circumferential portion, a first pushing rib for promoting elastic deformation of the first elastic rib until the first elastic rib is separated from the first toothed circumferential portion is arranged at a position of the shell corresponding to the first elastic rib, and a second pushing rib for promoting elastic deformation of the second elastic rib until the second elastic rib is separated from the second toothed circumferential portion is arranged at a position corresponding to the second elastic rib; The mounting block comprises a first mounting plate and a second mounting plate that are buckled together; A first movable groove is formed on the second mounting plate at a position corresponding to the first tooth-shaped circumference, and the first elastic rib is arranged in the first movable groove; a second movable groove is formed on the second mounting plate at a position corresponding to the second tooth-shaped circumference, and the second elastic rib is arranged in the second movable groove; The first elastic rib has a first free end and a first connecting end connected to the groove wall of the first movable groove, the first free end is provided with a first elastic rib lock buckle and a first protrusion that is conducive to engaging with the tooth profile of the first tooth profile circumferential portion, the first elastic rib lock buckle extends in a direction away from the first mounting plate, and the first protrusion extends in the direction of the first mounting plate; The second elastic rib has a second free end and a second connecting end connected to the groove wall of the second movable groove, the second free end is provided with a second elastic rib lock buckle and a second protrusion that is conducive to engaging with the tooth profile of the second tooth profile circumferential portion, the second elastic rib lock buckle extends in a direction away from the first mounting plate, and the second protrusion extends in the direction of the first mounting plate; The first pushing rib and the second pushing rib are arranged on the inner side wall of the shell and along the length direction of the shell.

2. A roll-up stationery with automatic unlocking by pushing the nozzle as claimed in claim 1, characterized in that: The first toothed circumferential portion is installed between the belt-out pulley and the second mounting plate, and the second toothed circumferential portion is installed between the belt-receiving pulley and the second mounting plate.

3. A roll-up stationery with automatic unlocking by pushing the nozzle as claimed in claim 2, characterized in that: The correction belt body and the winding mechanism are both arranged between the first mounting plate and the second mounting plate, the gear mechanism is installed between the first mounting plate and the belt delivery wheel and the belt take-up wheel, the pressure nozzle is fixedly installed between the first mounting plate and the second mounting plate, and the operating end of the pressure nozzle extends out of the replacement core.

4. A roll-up stationery with automatic unlocking by pushing the nozzle as claimed in claim 1, characterized in that: The first tooth-profile circumferential portion and the second tooth-profile circumferential portion are in the form of an inner circumferential tooth profile, an outer circumferential tooth profile, a partial tooth profile, or a closed-loop continuous tooth profile.

5. A roll-up stationery with automatic unlocking by pushing the nozzle as claimed in claim 1, characterized in that: The first protrusion and the first toothed circumferential portion have a first tooth-shaped tooth protruding on the mating surface thereof, which is convenient for engaging with the first toothed circumferential portion; the second protrusion and the second toothed circumferential portion have a second tooth-shaped tooth protruding on the mating surface thereof, which is convenient for engaging with the second toothed circumferential portion.

6. A roll-up stationery with automatic unlocking by pushing the nozzle as claimed in claim 1, characterized in that: The first elastic rib is arranged along a tangential direction or a direction close to a tangential direction of the first tooth-shaped circumference, and the second elastic rib is arranged along a tangential direction or a direction close to a tangential direction of the second tooth-shaped circumference.

7. A roll-up stationery with automatic unlocking by pushing the nozzle as claimed in claim 1, characterized in that: A supporting convex strip for supporting the refill away from the shell is convexly provided on one side of the shell corresponding to the second mounting plate, and a convex block matching with the supporting convex strip is arranged on the second mounting plate.

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