Push type eraser

Abstract

The utility model relates to a push style eraser relates to stationery article field, including shell, positioning subassembly and limit subassembly, the inside of shell is provided with the eraser body, the shell is provided with the discharge port, the positioning subassembly includes slider, rotating shaft, torque spring, a plurality of splint and fixture block, slider is connected in the shell in sliding mode, and the limit subassembly is provided with the discharge port. A sliding hole is formed in the shell in the length direction of the eraser body, the sliding block extends out of the shell through the sliding hole and is rotationally connected with the rotating shaft, the rotating shaft is sleeved with the torque spring, the torque spring is rotationally connected to the sliding block through the rotating shaft, the sliding block is connected with the eraser body, one side of the clamping block is connected to the face, close to the shell, of the clamping plate, and the other side of the clamping block is connected with the clamping plate. And the other side of the connecting rod is propped against the shell, and grooves are formed in the two sides of the shell. According to the eraser, the sliding position of the eraser can be controlled more conveniently through the positioning assembly, and the eraser is difficult to move into the shell in the erasing process.

Description

Technical Field

[0001] The utility model relates to the field of stationery, in particular to a push-type eraser. Background Art

[0002] Eraser is a common stationery item used to erase marks on materials such as graphite or ink. Erasers are generally made in blocks. In order to better protect the eraser and extend its service life, manufacturers will cover the outer surface of the eraser with a protective shell.

[0003] At present, the Chinese utility model patent application with the publication date of September 23, 2022 and the publication number of CN217476957U proposes an eraser, including an eraser with a triangular prism shape and a shell arranged on the outside of the length direction of the eraser, a channel for accommodating the eraser and matching the shape of the eraser is arranged in the shell, one end of the channel is the eraser outlet, the eraser is slidably arranged in the channel, and the head end of the eraser can extend from the eraser outlet; a slide groove is arranged on the shell, and a rubber positioning member is slidably arranged in the channel along the extension direction of the channel; the rubber positioning member is arranged at the tail end of the rubber, and the rubber positioning member moves synchronously with the rubber; a toggle piece is arranged on the rubber positioning member, the toggle piece extends from the slide groove, and the toggle piece is moved so that the rubber positioning member drives the rubber to slide in the channel. The advantage of the utility model is that the position of the eraser can be controlled at will, especially when the length of the eraser becomes shorter after continuous use, the eraser can still be extended from the shell by controlling the rubber positioning member; there is a certain damping force between the rubber positioning member and the shell, so that the eraser will not move arbitrarily on the shell due to the effect of gravity.

[0004] However, in actual use, there is a damping force between the rubber locating piece and the outer shell, but the magnitude of the damping force is difficult to control. If the damping force is large, it is difficult to control the sliding position of the rubber locating piece; if the damping force is small, when the user uses the rubber to wipe, the rubber is prone to shaking and there is a high probability that it will move into the outer shell, affecting the wiping effect. Utility Model Content

[0005] In order to more conveniently control the sliding position of the eraser and make it difficult for the eraser to move into the shell during the wiping process, thereby improving the wiping effect, the utility model provides a push-type eraser.

[0006] The utility model provides a push-type eraser, which comprises a shell, a positioning assembly and a limiting assembly. A rubber body is arranged inside the shell, a material outlet is arranged on the shell, the positioning assembly comprises a slider, a rotating shaft, a torque spring, a plurality of clamping plates and a plurality of clamping blocks, the slider is slidably connected in the shell, the shell is provided with a sliding hole along the length direction of the rubber body, the slider extends to the outside of the shell through the sliding hole and is rotatably connected with the rotating shaft, the torque spring is sleeved on the rotating shaft, a plurality of clamping plates are arranged on both sides of the shell and are rotatably connected to the slider through the rotating shaft, the slider is connected to the rubber body, one side of the clamping block is connected to a surface of the clamping plate close to the shell, and the other side abuts against the side wall of the shell, and grooves are provided on both sides of the shell.

[0007] By adopting the above technical scheme, when the eraser in the shell needs to be used, the clamping plates on both sides of the shell are turned over so that the card block no longer abuts against the side wall of the shell, and the clamping plates are moved along the length direction of the eraser body, so that the slider drives the eraser to slide until the eraser body extends out of the discharge port; in order to make it difficult for the eraser to move into the shell during wiping, after determining the extension length, the clamping plates are released, and the clamping plates are turned over in the direction close to the shell under the elastic force of the torque spring, and the card block is moved into the card slot, and the eraser slides, rubs and abuts against the wiped object during wiping, and after the eraser body generates pressure on the shell in the direction close to the shell through the positioning component, the card block abuts against the card slot, making it difficult for the eraser body to move in the direction close to the shell; due to the setting of the positioning component, the user can more conveniently control the sliding position of the eraser by turning over and moving the clamping plates, and through the card block and the groove, it is difficult for the eraser to move into the shell during wiping.

[0008] Optionally, the clamping plate includes a clamping section, a connecting section and an operating section, the clamping section abuts against the side wall of the shell through a clamping block, the connecting section is rotatably connected to the rotating shaft, one side of the connecting section is connected to the clamping section, and the other side is connected to the operating section.

[0009] By adopting the above technical solution, when the clamping plate is needed, the operating sections on both sides of the shell are pressed in the direction close to the shell, and the clamping plate can be flipped over. After the clamping plate is no longer in contact with the shell, the clamping plate can be slid along the length direction of the eraser body, and the sliding position of the eraser can be more conveniently controlled by the slider. The arrangement of the clamping section, the connecting section and the operating section makes it convenient for the user to flip or move the clamping plate, thereby more conveniently controlling the sliding position of the eraser.

[0010] Optionally, a gap is provided between the inner wall of the shell and the rubber body.

[0011] By adopting the above technical solution, when moving the eraser, the clamping plate is flipped and moved so that the eraser body extends out from the discharge port. The existence of the gap greatly reduces the contact area between the eraser body and the inner wall of the shell, so that the friction force generated between the eraser body and the shell during the movement is small. Therefore, the setting of the gap is used to reduce the friction force generated between the eraser body and the shell during the movement, so that the user can move the eraser more conveniently.

[0012] Optionally, the limiting assembly includes a plurality of positioning rollers, the plurality of positioning rollers are arranged on the outside of the rubber body, the positioning rollers are rotatably connected to the inner wall of the shell and are in contact with the side wall of the rubber body.

[0013] By adopting the above technical scheme, when it is necessary to extend the eraser, the clamping plate is flipped and moved to make the eraser body extend from the discharge port, and friction is generated between the positioning roller in contact with the eraser body and the eraser body, and rolling occurs; since a gap is provided between the shell and the side wall of the eraser body, the eraser is prone to shaking during movement or use, which affects the use effect of the eraser, and the positioning roller is provided so that the eraser is not prone to shaking due to rolling friction with the positioning roller during movement; the eraser will contact with the positioning roller during wiping and use, which reduces the frequency of shaking of the eraser during use.

[0014] Optionally, the limiting assembly includes a limiting bar, which is fixedly connected to the inner wall of the shell, and the limiting bar is arranged at the discharge port and is attached to the side wall of the rubber body.

[0015] By adopting the above technical scheme, the shell is held in the hand, and the eraser is rubbed against the wiped object for use. When the eraser body is about to shake in the shell under the action of friction, the side wall of the eraser body abuts against the limit bar, making it difficult for the eraser to shake in the shell; the positioning roller is cylindrical, so that there is still a gap between the rubber body at the discharge port and the inner wall of the shell, and the eraser is still prone to shaking during wiping and use. Therefore, a limit bar is provided. When the eraser is in use, the side wall of the rubber body abuts against the limit bar, making it difficult for the eraser to shake at the discharge port.

[0016] Optionally, a material changing port is provided on a side of the shell away from the material discharge port, a storage slot is provided on the slider, and the rubber body is clamped on the slider through the storage slot.

[0017] By adopting the above technical solution, after the eraser body is used up and it is necessary to replace the eraser, the slider and the remaining eraser body are taken out from the material changing port, the remaining eraser body is taken out, and a new eraser is replaced, and the eraser and the slider are moved from the material changing port to the shell body, and the operation is simple and convenient to continue using. The setting of the material changing port and the storage slot makes it convenient for users to change materials, thereby increasing the service life of the push-type eraser.

[0018] Optionally, a slide bar is provided on the slider, a slide groove is provided on the shell along the length direction of the rubber body, and the slide bar is slidably arranged in the slide groove.

[0019] By adopting the above technical solution, when the slider needs to be moved, the slide bar is aligned with the slide groove, and the clamp is pushed. The slide bar can slide and fit with the inner wall of the slide groove. The setting of the slide bar and the slide groove makes it difficult for the slider to shake when it slides in the shell, reducing the degree of wear and tear between the slider and the shell due to friction, making it convenient to take out or put back the pull-out shell.

[0020] In summary, the present invention includes at least one of the following beneficial technical effects:

[0021] 1. A gap is provided between the inner wall of the shell and the eraser body, and the slider is slidably connected to the shell. The user can flip and move the clamp plate to more conveniently control the sliding position of the eraser through the slider, and through the block and the groove, the eraser is difficult to move into the shell during the wiping process.

[0022] 2. When the eraser moves, it rolls against the positioning roller and sticks to the side wall of the limit strip, making it less likely to shake. When the eraser is used for wiping, it comes into contact with the positioning roller and the side wall of the limit strip, reducing the frequency of shaking of the eraser during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure;

[0024] Figure 2 is a schematic diagram of the positioning component structure;

[0025] Figure 3 It is a schematic diagram of the internal structure of the shell;

[0026] Figure 4 for Figure 3 Enlarged view of part B in the middle.

[0027] Explanation of the reference numerals: 10, shell; 11, rubber body; 12, discharge port; 13, groove; 14, material change port; 15, slide hole; 16, slide groove; 20, positioning assembly; 21, slider; 211, storage slot; 212, slide bar; 22, rotating shaft; 23, torque spring; 24, clamp; 241, clamping section; 242, connecting section; 243, operating section; 25, block; 30, limit assembly; 31, positioning roller; 32, limit bar. DETAILED DESCRIPTION

[0028] The following combination Figure 1-Figure 4 The utility model is described in further detail.

[0029] This embodiment discloses a push-type eraser: Figure 1-Figure 4 A push-type eraser includes a shell 10, a positioning assembly 20 and a limiting assembly 30. An eraser body 11 is arranged inside the shell 10, and a discharge port 12 is arranged on the shell 10. The positioning assembly 20 is used to more conveniently control the sliding position of the eraser; the limiting assembly 30 reduces the frequency of shaking of the eraser body 11 during movement or use.

[0030] When the user needs to use the eraser, the positioning component 20 is used to move the eraser body 11 until the eraser body 11 extends from the discharge port 12. When the eraser body 11 extends to a suitable position, the positioning component 20 can be used to fix the sliding position of the eraser body 11, so that the user can use the eraser conveniently. The operation is simple and convenient. The damping force set between the positioning component 20 and the shell 10 is small; the user can more conveniently control the sliding position of the eraser.

[0031] Reference Figure 1-Figure 2 The positioning assembly 20 includes a slider 21, a rotating shaft 22, a torque spring 23, a plurality of clamps 24 and a plurality of blocks 25. The slider 21 is slidably connected in the housing 10. The housing 10 is provided with a sliding hole 15 along the length direction of the rubber body 11. The slider 21 extends to the outside of the housing 10 through the sliding hole 15 and is rotatably connected to the rotating shaft 22. The torque spring 23 is sleeved on the rotating shaft 22. The plurality of clamps 24 are provided on both sides of the housing 10 and are rotatably connected to the slider 21 through the rotating shaft 22. The slider 21 is connected to the rubber body 11. One side of the block 25 is connected to a side of the clamp 24 close to the housing 10, and the other side abuts against the side wall of the housing 10. Grooves 13 are provided on both sides of the housing 10.

[0032] When the user needs to move the eraser and fix the moving position of the eraser, the clamping plates 24 on both sides of the shell 10 are turned over so that the card block no longer abuts against the side wall of the shell 10, and the clamping plates 24 are moved along the length direction of the eraser body 11, so that the slider 21 drives the eraser to slide, and the moving position of the eraser can be changed; in order to make it difficult for the eraser to move into the shell during wiping, after determining the extended length, the clamping plates 24 are released, and the clamping plates 24 are turned over in the direction close to the shell 10 under the elastic force of the torque spring 23, and the card block 25 is moved into the card slot. During wiping, the eraser slides, rubs and abuts against the wiped object. After the eraser body 11 generates pressure on the shell 10 in the direction close to the shell 10 through the positioning assembly 20, the card block 25 abuts against the card slot, making it difficult for the eraser body 11 to move in the direction close to the shell 10.

[0033] Reference Figure 1-Figure 2The clamping plate 24 includes a clamping section 241, a connecting section 242 and an operating section 243. The clamping section 241 abuts against the side wall of the shell 10 through a clamping block 25. The connecting section 242 is rotatably connected to the rotating shaft 22. One side of the connecting section 242 is connected to the clamping section 241, and the other side is connected to the operating section 243.

[0034] When the user needs to flip or move the clamping plate 24, the user can press the operating sections 243 on both sides of the shell 10 in the direction close to the shell 10 to flip the clamping plate 24. After the clamping plate is no longer in contact with the shell 10, the clamping plate 24 can be slid along the length direction of the eraser body 11, and the sliding position of the eraser can be more conveniently controlled through the slider 21. The arrangement of the clamping section 241, the connecting section 242 and the operating section 243 makes it convenient for the user to flip or move the clamping plate 24, thereby more conveniently controlling the sliding position of the eraser.

[0035] Reference Figure 1-Figure 2 The slider 21 is provided with a slide bar 212 , and the housing 10 is provided with a slide groove 16 along the length direction of the rubber body 11 , and the slide bar 212 is slidably disposed in the slide groove 16 .

[0036] When sliding the slider 21, in order to further reduce the damping force between the slider 21 and the inner wall of the shell 10, a slide bar 212 and a slide groove 16 are set; when the slider 21 needs to be moved, the slide bar 212 is aligned with the slide groove 16, and the clamping plate 24 is pushed, and the slide bar 212 can slide and fit with the inner wall of the slide groove 16. The setting of the slide bar 212 and the slide groove 16 makes it difficult for the slider 21 to shake when it slides in the shell 10, reducing the degree of wear and tear between the slider 21 and the shell 10 due to friction, making it convenient to take out or put back the pull-out shell.

[0037] Reference Figure 2-Figure 4 A gap is provided between the inner wall of the shell 10 and the rubber body 11 .

[0038] When moving the eraser, the clamping plate 24 is turned over and moved so that the eraser body 11 extends out from the discharge port 12. The existence of the gap greatly reduces the contact area between the eraser body 11 and the inner wall of the shell 10, so that the friction force generated between the eraser body 11 and the shell 10 during the movement is small. Therefore, the setting of the gap is used to reduce the friction force generated between the eraser body 11 and the shell 10 during the movement, so that the user can move the eraser more conveniently.

[0039] Reference Figure 3-Figure 4 The limiting assembly 30 includes a plurality of positioning rollers 31 , which are disposed on the outside of the rubber body 11 . The positioning rollers 31 are rotatably connected to the inner wall of the housing 10 and are in contact with the side wall of the rubber body 11 .

[0040] When the eraser needs to be extended, due to the setting of the gap between the inner wall of the shell 10 and the eraser body 11, the eraser is prone to shake during movement or use, affecting the use effect of the eraser. To solve this problem, a positioning roller 31 is set, and the clamping plate 24 is flipped and moved to make the eraser body 11 extend from the discharge port 12. The positioning roller 31 that is in contact with the eraser body 11 generates friction with the rubber body 11 and rolls. Therefore, the setting of the positioning roller 31 causes the eraser to have rolling friction with the positioning roller 31 during movement, and is not prone to shaking. The eraser will abut against the positioning roller 31 during wiping and use, reducing the frequency of shaking of the eraser during use.

[0041] Reference Figure 3-Figure 4 The limiting assembly 30 includes a limiting strip 32 , which is fixedly connected to the inner wall of the shell 10 . The limiting strip 32 is arranged at the discharge port 12 and is attached to the side wall of the rubber body 11 .

[0042] During the process of wiping with an eraser, the positioning roller 31 is cylindrical, so that there is still a gap between the eraser body 11 at the discharge port 12 and the inner wall of the shell 10. The eraser is still prone to shaking during wiping. Therefore, a limit strip 32 is provided. The shell 10 is held by hand to rub the eraser against the wiped object for use. When the eraser body 11 is about to shake in the shell 10 under the action of friction, the side wall of the eraser body 11 abuts against the limit strip 32, making it difficult for the eraser to shake in the shell 10.

[0043] Reference Figure 1-Figure 2 A material changing port 14 is disposed on one side of the housing 10 away from the material discharging port 12 , a placing groove 211 is provided on the slider 21 , and the rubber body 11 is clamped on the slider 21 through the placing groove 211 .

[0044] After the eraser body 11 is used up and needs to be replaced, the slider 21 and the remaining eraser body 11 are taken out from the material changing port 14, the remaining eraser body 11 is taken out, and a new eraser is replaced, so that the eraser and the slider 21 are moved from the material changing port 14 to the housing 10, and the operation is simple and convenient. The setting of the material changing port 14 and the storage slot 211 makes it convenient for users to change materials and increases the service life of the push-type eraser.

[0045] The implementation principle of a push-type eraser of the present embodiment is:

[0046] When the eraser in the housing 10 needs to be used, the operating sections 243 on both sides of the housing 10 are pressed in the direction close to the housing 10, and the clamping plate 24 is turned over so that the clamping plate is no longer in contact with the housing 10. Then, the clamping plate 24 and the slider 21 are slid along the length direction of the eraser body 11, and the eraser body 11 is moved in the direction close to the discharge port 12 and extended from the discharge port 12. The slider 21 is slidably connected to the housing 10, so that the user can more conveniently control the sliding position of the eraser. After determining the extended length of the eraser body 11, the operating section 243 is released, and the clamping section 241 is in Under the elastic force of the torque spring 23, the block 25 is flipped toward the direction close to the shell 10, so that the block 25 moves into the slot. During the wiping process, the eraser slides, rubs and abuts against the wiped object. After the eraser body 11 generates pressure on the shell 10 in the direction close to the shell 10 through the positioning component 20, the block 25 abuts against the slot, making it difficult for the eraser body 11 to move toward the shell 10. Therefore, the setting of the positioning component 20 can make it easier for the user to control the sliding position of the eraser and make it difficult for the eraser to move into the shell 10 during the wiping process.

[0047] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A push-type eraser, comprising a housing (10), a positioning assembly (20) and a limiting assembly (30), characterized in that: A rubber body (11) is arranged inside the shell (10), a discharge port (12) is arranged on the shell (10), the positioning assembly (20) comprises a slider (21), a rotating shaft (22), a torque spring (23), a plurality of clamping plates (24) and a plurality of clamping blocks (25), the slider (21) is arranged inside the shell (10), a sliding hole (15) is arranged on the shell (10) along the length direction of the rubber body (11), and the slider (21) extends to the shell (10) through the sliding hole (15). The housing (10) is provided with a plurality of clamping plates (24) on both sides thereof and is rotatably connected to a rotating shaft (22). The plurality of clamping plates (24) are provided on both sides of the housing (10) and are rotatably connected to a slider (21) through the rotating shaft (22). The slider (21) is connected to the rubber body (11). One side of the clamping block (25) is connected to a surface of the clamping plate (24) close to the housing (10), and the other side abuts against a side wall of the housing (10). Grooves (13) are provided on both sides of the housing (10).

2. A push-type eraser according to claim 1, characterized in that: The clamping plate (24) comprises a clamping section (241), a connecting section (242) and an operating section (243); the clamping section (241) is abutted against the side wall of the shell (10) through a clamping block (25); the connecting section (242) is rotatably connected to the rotating shaft (22); one side of the connecting section (242) is connected to the clamping section (241), and the other side is connected to the operating section (243).

3. A push-type eraser according to claim 2, characterized in that: A gap is provided between the inner wall of the shell (10) and the rubber body (11).

4. A push-type eraser according to any one of claims 1 to 3, characterized in that: The limiting assembly (30) comprises a plurality of positioning rollers (31), the plurality of positioning rollers (31) being arranged on the outside of the rubber body, the positioning rollers (31) being rotatably connected to the inner wall of the shell (10) and being in contact with the side wall of the rubber body (11).

5. A push-type eraser according to claim 4, characterized in that: The limiting assembly (30) comprises a limiting strip (32), wherein the limiting strip (32) is fixedly connected to the inner wall of the shell (10), and the limiting strip (32) is arranged at the discharge port (12) and is in contact with the side wall of the rubber body (11).

6. A push-type eraser according to claim 1, characterized in that: A material replacement port (14) is provided on a side of the housing (10) away from the material discharge port (12), a storage groove (211) is provided on the slider (21), and the rubber body (11) is clamped on the slider (21) via the storage groove (211).

7. A push-type eraser according to claim 1, characterized in that: The slider (21) is provided with a slide bar (212), the housing (10) is provided with a slide groove (16) along the length direction of the rubber body (11), and the slide bar (212) is slidably arranged in the slide groove (16).

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