Mute rotation stopping structure of correction tape
By using gravity moving parts and limiting column structures in the correction belt, the unidirectional rotation and noise reduction of the conveyor wheel are solved, and the adaptability of the quiet environment is improved.
Patent Information
- Application Number
- CN202420327136.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-22
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-02-22
AI Technical Summary
The ratchet mechanism of the traditional correction belt causes noise problems, especially in a quiet environment, such as when exams or classes are taken, which can have an impact on others.
The gravity moving parts and limit column structure are adopted, and the buckles of the inner ring gear and the outer ring gear can realize one-way rotation of the conveyor wheel and prevent it from reversing and reduce noise.
It effectively reduces the noise generated during the use of the correction belt, prevents the conveyor wheel from rotating in reverse, improves the damping effect, and maintains the flexibility and smoothness of the correction belt.
Smart Images
Figure CN222159431U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stationery products, in particular to a silent anti-rotation structure of a correction tape. Background Art
[0002] The traditional correction tape comprises an outer shell, a pressure head, a tape feed wheel, a tape take-up wheel and a core tape, the side of the outer shell is provided with an opening, and the pressure head is exposed to the outside through the opening; the tape feed wheel and the tape take-up wheel can be rotatably installed in the inner cavity of the outer shell, and the tape feed wheel drives the tape take-up wheel to rotate through a gear set; the core tape is installed on the wheel shaft of the tape feed wheel; a first guide shaft and a second guide shaft are provided in the inner cavity of the outer shell, the first guide shaft is located on one side between the tape feed wheel and the tape take-up wheel, and the second guide shaft is located between the pressure head and the tape take-up wheel, the tape feed wheel rotates in a clockwise direction, and the tape take-up wheel rotates in a counterclockwise direction; the free end of the core tape is unwound from the tape feed wheel in a clockwise direction, passes around the first guide shaft, the pressure head and the second guide shaft in sequence, and is fixed on the tape take-up wheel.
[0003] The above-mentioned tape wheel is also provided with a ratchet mechanism, and the ratchet acts on the pawl to prevent the tape wheel from rotating in the opposite direction. Usually, the teeth in the ratchet of the tape wheel are densely distributed, and the spacing between the teeth is very small, so that the pawl has very little room to rotate between the teeth to ensure that the tape does not loosen. In addition, the root of the pawl is also thicker, and it has a strong resilience in the interaction with the ratchet. This structure brings problems to the correction tape in use. The strong resilience of the pawl increases the degree of collision between the ratchet and the pawl, and the dense distribution of the teeth makes the collision occur very frequently, thereby generating noises of "click, click, click...", which will still have a certain impact on others in environments with special requirements for quietness, such as exams or lectures. Utility Model Content
[0004] The problem to be solved by the utility model is to provide a silent anti-rotation structure of a correction tape, which can make the tape feed wheel rotate in one direction and prevent the reverse rotation, thereby reducing the noise generated by the correction tape during use.
[0005] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:
[0006] A silent anti-rotation structure for a correction belt, comprising a shell, a pressure head, a belt-feeding wheel, a belt-receiving wheel and a core belt, wherein an opening is provided on the side of the shell, and the pressure head is exposed to the outside through the opening; a first clamping column and a second clamping column are provided in the shell, a first inner ring sleeve is provided at the center of the belt-feeding wheel, and the first inner ring sleeve is sleeved on the first clamping column, a second inner ring sleeve is provided at the center of the belt-receiving wheel, and the second inner ring sleeve is sleeved on the second clamping column; the belt-feeding wheel drives the belt-receiving wheel to rotate through a gear set; the core belt is mounted on the first inner ring sleeve; the feature is that it also comprises two gravity movable parts, and the shell is provided with two corresponding gravity movable parts The first clamping column is located between the two limiting columns, an inner gear ring and an outer gear ring are convexly arranged on one surface of the tape feeding wheel, the outer gear ring is in the inner gear ring, the two limiting columns are located between the inner gear ring and the outer gear ring, and the two gravity movable parts are respectively mounted on the corresponding limiting columns; when the tape feeding wheel rotates counterclockwise, the outer end of the gravity movable part is snap-fitted with the inner gear ring, and the inner end of the gravity movable part is snap-fitted with the outer gear ring; when the tape feeding wheel rotates clockwise, the outer end of the gravity movable part is disengaged from the inner gear ring, and the inner end of the gravity movable part is disengaged from the outer gear ring.
[0007] The above-mentioned definition of inside and outside is: taking the first card post as a reference, the side close to the first card post is the inside, and the side away from the first card post is the outside.
[0008] When the correction tape is being unwound, the tape feed wheel and the tape take-up wheel in the housing are in a vertical state, one gravity movable part is above the first clamping post, and the other gravity movable part is below the first clamping post: the outer end of the gravity movable part below the first clamping post swings downward due to its own gravity, so that the outer end of the gravity movable part is snap-fitted with the inner gear ring; the inner end of the gravity movable part below the first clamping post swings downward due to its own gravity, so that the inner end of the gravity movable part is snap-fitted with the outer gear ring, the tape feed wheel unwounds in a clockwise direction, and the tape take-up wheel takes up the tape in a counterclockwise direction.
[0009] In the preferred embodiment, the gravity movable part includes a limiting sleeve, an outer clamping strip, an inner clamping strip and a weighting plate. The inner wall of the limiting sleeve is provided with a guide groove, and the outer wall of the limiting column is provided with a guide strip matching the guide groove. The limiting sleeve is sleeved on the limiting column, and the guide strip is in the guide groove; the inner end of the outer clamping strip, the outer end of the inner clamping strip, and one end of the weighting plate are all installed on the outer wall of the limiting sleeve, and there is an angle between the outer clamping strip and the inner clamping strip, the weighting plate is in the area where the angle is located, and the outer clamping strip, the inner clamping strip, and the weighting plate are all on the same plane; the outer end of the outer clamping strip is snap-fitted with the inner gear ring, and the inner end of the inner clamping strip is snap-fitted with the outer gear ring. The above-mentioned limiting sleeve is sleeved on the limiting column, and the guide strip is in the guide groove. When the tape feed wheel rotates, the limiting sleeve of the gravity movable part cannot rotate around the limiting column because the limiting sleeve is restricted by the guide strip. Therefore, when the tape feed wheel is to rotate counterclockwise, the outer end of the outer clamping strip is snap-fitted with the inner gear ring, and the inner end of the inner clamping strip is snap-fitted with the outer gear ring, thereby limiting the rotation of the tape feed wheel. Since the weighting sheet is within the angle between the outer clamping strip and the inner clamping strip, and the outer clamping strip, the inner clamping strip and the weighting sheet are all on the same plane, the weighting sheet can increase the weight of one side of the limiting sleeve, so that the center of gravity of the gravity movable part is shifted downward, so that the gravity movable part can swing downward due to its own gravity.
[0010] In a further preferred embodiment, an inner tooth groove is provided between two adjacent inner teeth on the inner tooth ring, and an outer clamping tooth is provided on the outer end of the outer clamping strip, and the outer clamping tooth is located in the inner tooth groove; an outer tooth groove is provided between two adjacent outer teeth on the outer tooth ring, and an inner clamping tooth is provided on the inner end of the inner clamping strip, and the inner clamping tooth is located in the outer tooth groove. When the tape feed wheel rotates counterclockwise, the outer clamping tooth of the gravity movable part below the first clamping column is located in the inner tooth groove, and the outer clamping tooth is engaged with the corresponding inner tooth buckle; the inner clamping tooth of the gravity movable part above the first clamping column is located in the outer tooth groove, and the inner clamping tooth is engaged with the corresponding outer tooth buckle, which can prevent the correction tape from rotating in the opposite direction and improve the damping effect of the correction tape.
[0011] In a further preferred embodiment, each of the inner teeth is provided with a first guide surface and a first vertical surface, each of the first guide surfaces is inclined counterclockwise from the outside to the inside, and an outer arc portion is provided on the outer end portion of the external tooth, the outer arc portion slides with each first guide surface, and the tooth tip of the external tooth snaps with the first vertical surface; each of the outer teeth is provided with a second guide surface and a second vertical surface, each of the second guide surfaces is inclined counterclockwise from the inside to the outside, and an inner arc portion is provided on the inner end portion of the internal tooth, the inner arc portion slides with each second guide surface, and the tooth tip of the internal tooth snaps with the second vertical surface. When the tape feeding wheel unwinds in a clockwise direction, the outer tooth of the gravity movable part below the first clamping column has an outer arc-shaped portion, and under the guidance of the first guide surface on each inner tooth, the tooth tip of the outer tooth is lifted up, so that the tooth tip of the outer tooth is disengaged from the first vertical surface, and then the outer tooth is disengaged from the inner tooth groove, and is not affected by the inner tooth groove, and the tooth tip of the outer tooth can slide on the surface of the inner tooth groove without noise; the inner tooth of the gravity movable part above the first clamping column has an inner arc-shaped portion, and under the guidance of the second guide surface on each outer tooth, the tooth tip of the inner tooth is lifted up, so that the tooth tip of the inner tooth is disengaged from the second vertical surface, and then the inner tooth is disengaged from the outer tooth groove, and is not affected by the outer tooth groove, and the tooth tip of the inner tooth can slide on the surface of the outer tooth groove without noise, so that the tape feeding wheel can rotate normally in the clockwise direction.
[0012] In a further preferred embodiment, the angle opening of the gravity movable part below the first clamping column is the first opening, and the angle opening of the gravity movable part above the first clamping column is the second opening, the first opening faces the pressure head, and the second opening is opposite to the first opening. By setting the first opening and the second opening, the gravity movable part can cooperate in different positions and directions to limit the rotation direction of the tape feed wheel.
[0013] In a further preferred embodiment, the angle between the outer card strip and the inner card strip is 110°-140°. By selecting a reasonable angle, sufficient damping effect can be provided while avoiding the influence of too large an angle on the flexibility and smoothness of the correction tape.
[0014] Compared with the prior art, the utility model has the following advantages:
[0015] The utility model can effectively reduce the clicking sound produced by the correction tape during use and reduce the influence of noise pollution on the surrounding environment and others, and can also prevent the tape feed wheel from rotating in the reverse direction, thereby realizing the limitation and control of different rotation directions of the tape feed wheel. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1It is a structural schematic diagram of an embodiment of the utility model;
[0017] Figure 2 yes Figure 1 A schematic diagram of the structure after the components are assembled;
[0018] Figure 3 yes Figure 1 Schematic diagram of the structure of the medium gravity moving parts;
[0019] Figure 4 yes Figure 1 Schematic diagram of the structure of the center feed pulley. DETAILED DESCRIPTION
[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] like Figure 1-4 As shown, the silent anti-rotation structure of the correction tape in this embodiment includes a shell 1, a pressure head 2, a tape feed wheel 3, a tape take-up wheel 4, a core belt 5 and two gravity movable parts 6. An opening is opened on the side of the shell 1, and the pressure head 2 is exposed to the outside from the opening; a first clamping column 11 and a second clamping column 12 are provided in the shell 1, a first inner ring sleeve 31 is provided at the center of the tape feed wheel 3, and the first inner ring sleeve 31 is sleeved on the first clamping column 11, and a second inner ring sleeve 41 is provided at the center of the tape take-up wheel 4, and the second inner ring sleeve 41 is sleeved on the second clamping column 12; the tape feed wheel 3 drives the tape take-up wheel 4 to rotate through a gear set; the core belt 5 is installed on the first inner ring sleeve 31; the shell 1 is provided with two corresponding gravity movable parts 6 The limiting column 13, the first clamping column 11 is located between the two limiting columns 13, an inner gear ring 32 and an outer gear ring 33 are convexly provided on one surface of the tape feeding wheel 3, the outer gear ring 33 is located in the inner gear ring 32, the two limiting columns 13 are located between the inner gear ring 32 and the outer gear ring 33, and the two gravity movable parts 6 are respectively sleeved on the corresponding limiting columns 13; when the tape feeding wheel 3 rotates counterclockwise, the outer end of the gravity movable part 6 is snap-fitted with the inner gear ring 32, and the inner end of the gravity movable part 6 is snap-fitted with the outer gear ring 33; when the tape feeding wheel 3 rotates clockwise, the outer end of the gravity movable part 6 is disengaged from the inner gear ring 32, and the inner end of the gravity movable part 6 is disengaged from the outer gear ring 33.
[0022] The above-mentioned definition of inside and outside is: taking the first card post 11 as a reference, the side close to the first card post 11 is the inside, and the side away from the first card post 11 is the outside.
[0023] When the correction tape is being unwound, the tape feed wheel 3 and the tape take-up wheel 4 in the housing 1 are in a vertical state, one gravity movable part 6 is above the first clamping column 11, and the other gravity movable part 6 is below the first clamping column 11: the outer end of the gravity movable part 6 below the first clamping column 11 swings downward due to its own gravity, so that the outer end of the gravity movable part 6 is snap-fitted with the inner gear ring 32; the inner end of the gravity movable part 6 below the first clamping column 11 swings downward due to its own gravity, so that the inner end of the gravity movable part 6 is snap-fitted with the outer gear ring 33, the tape feed wheel 3 unwound the tape in a clockwise direction, and the tape take-up wheel 4 took up the tape in a counterclockwise direction.
[0024] The gravity movable part 6 includes a limiting sleeve 61, an outer clamping strip 62, an inner clamping strip 63 and a weighting piece 64. A guide groove 611 is provided on the inner wall of the limiting sleeve 61, and a guide strip 131 matching the guide groove 611 is provided on the outer wall of the limiting column 13. The limiting sleeve 61 is sleeved on the limiting column 13, and the guide strip 131 is in the guide groove 611; the inner end of the outer clamping strip 62, the outer end of the inner clamping strip 63, and one end of the weighting piece 64 are all installed on the outer wall of the limiting sleeve 61, and there is an angle α between the outer clamping strip 62 and the inner clamping strip 63. The weighting piece 64 is in the area where the angle α is located, and the outer clamping strip 62, the inner clamping strip 63, and the weighting piece 64 are all in the same plane; the outer end of the outer clamping strip 62 is snap-fitted with the inner gear ring 32, and the inner end of the inner clamping strip 63 is snap-fitted with the outer gear ring 33. The above-mentioned limiting sleeve 61 is sleeved on the limiting column 13, and the guide strip 131 is in the guide groove 611. When the tape feed wheel 3 rotates, the limiting sleeve 61 of the gravity movable part 6 cannot rotate around the limiting column 13 because the limiting sleeve 61 is limited by the guide strip 131. Therefore, when the tape feed wheel 3 is to rotate counterclockwise, the outer end of the outer clamping strip 62 is snap-fitted with the inner gear ring 32, and the inner end of the inner clamping strip 63 is snap-fitted with the outer gear ring 33, thereby limiting the rotation of the tape feed wheel 3. Since the weighting sheet 64 is within the angle α between the outer clamping strip 62 and the inner clamping strip 63, and the outer clamping strip 62, the inner clamping strip 63, and the weighting sheet 64 are all on the same plane, the weighting sheet 64 can increase the weight of one side of the limiting sleeve 61, so that the center of gravity of the gravity movable part 6 is shifted downward, so that the gravity movable part 6 can swing downward due to its own gravity.
[0025] On the inner gear ring 32, an inner tooth groove 321 is provided between two adjacent inner teeth 322, and an outer clamping tooth 621 is provided on the outer end of the outer clamping strip 62, and the outer clamping tooth 621 is located in the inner tooth groove 321; on the outer gear ring 33, an outer tooth groove 331 is provided between two adjacent outer teeth 332, and an inner clamping tooth 631 is provided on the inner end of the inner clamping strip 63, and the inner clamping tooth 631 is located in the outer tooth groove 331. When the tape feed wheel 3 rotates counterclockwise, the outer clamping tooth 621 of the gravity movable part 6 located below the first clamping column 11 is located in the inner tooth groove 321, and the outer clamping tooth 621 is snap-fitted with the corresponding inner tooth 322; the inner clamping tooth 631 of the gravity movable part 6 located above the first clamping column 11 is located in the outer tooth groove 331, and the inner clamping tooth 631 is snap-fitted with the corresponding outer tooth 332, which can prevent the correction tape from rotating in the opposite direction and improve the damping effect of the correction tape.
[0026] Each of the inner teeth 322 is provided with a first guide surface 3221 and a first vertical surface 3222, and each of the first guide surfaces 3221 is inclined counterclockwise from the outside to the inside, and an outer arc portion 622 is provided on the outer end portion of the external tooth 621, and the outer arc portion 622 is slidably matched with each of the first guide surfaces 3221, and the tooth tip of the external tooth 621 is snap-fitted with the first vertical surface 3222; each of the outer teeth 332 is provided with a second guide surface 3321 and a second vertical surface 3322, and each of the second guide surfaces 3321 is inclined counterclockwise from the inside to the outside, and an inner arc portion 632 is provided on the inner end portion of the internal tooth 631, and the inner arc portion 632 is slidably matched with each of the second guide surfaces 3321, and the tooth tip of the internal tooth 631 is snap-fitted with the second vertical surface 3322. When the tape delivery wheel 3 unwinds the tape in a clockwise direction, the outer tooth 621 of the gravity movable member 6 located below the first clamping column 11 has an outer arc-shaped portion 622. Under the guidance of the first guide surface 3221 on each inner tooth 322, the tooth tip of the outer tooth 621 is lifted up, so that the tooth tip of the outer tooth 621 is disengaged from the first vertical surface 3222, thereby disengaging the outer tooth 621 from the inner tooth groove 321 and not being affected by the inner tooth groove 321. Moreover, the tooth tip of the outer tooth 621 can slide on the surface of the inner tooth groove 321 without making any noise. The inner tooth 631 of the gravity movable part 6 above the first clamping column 11 has an inner arc portion 632. Under the guidance of the second guide surface 3321 on each outer tooth 332, the tooth tip of the inner tooth 631 is lifted up, so that the tooth tip of the inner tooth 631 is disengaged from the second vertical surface 3322, and then the inner tooth 631 is disengaged from the outer tooth groove 331, and is not affected by the outer tooth groove 331. Moreover, the tooth tip of the inner tooth 631 can slide on the surface of the outer tooth groove 331 without noise, so that the tape feed wheel 3 can rotate normally in the clockwise direction.
[0027] The opening of the angle α of the gravity movable part 6 below the first clamping column 11 is the first opening, and the opening of the angle α of the gravity movable part 6 above the first clamping column 11 is the second opening. The first opening faces the pressure head 2, and the second opening is opposite to the first opening. By setting the first opening and the second opening, the gravity movable part 6 can cooperate in different positions and directions to limit the rotation direction of the tape feed wheel 3.
[0028] The angle α between the outer clamping strip 62 and the inner clamping strip 63 is 130°. By properly selecting the angle α, sufficient damping effect can be provided while avoiding the influence of too large an angle α on the flexibility and smoothness of the correction tape.
[0029] In addition, it should be noted that the names of the various parts of the specific embodiments described in this specification may be different, and any equivalent or simple changes made based on the structure, features and principles described in the utility model patent concept are included in the protection scope of the utility model patent. The technical personnel of the technical field to which the utility model belongs can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.
Claims
1. A silent anti-rotation structure for a correction belt, comprising a shell, a pressure head, a belt-feeding wheel, a belt-receiving wheel and a core belt, wherein an opening is provided on the side of the shell, and the pressure head is exposed to the outside through the opening; a first clamping column and a second clamping column are provided in the shell, a first inner ring sleeve is provided at the center of the belt-feeding wheel, and the first inner ring sleeve is sleeved on the first clamping column, a second inner ring sleeve is provided at the center of the belt-receiving wheel, and the second inner ring sleeve is sleeved on the second clamping column; the belt-feeding wheel drives the belt-receiving wheel to rotate through a gear set; the core belt is installed on the first inner ring sleeve; the characteristics are as follows: It also includes two gravity movable parts, two limiting posts corresponding to the corresponding gravity movable parts are arranged in the outer shell, the first clamping post is located between the two limiting posts, an inner gear ring and an outer gear ring are convexly arranged on one surface of the tape feed wheel, the outer gear ring is located in the inner gear ring, the two limiting posts are located between the inner gear ring and the outer gear ring, and the two gravity movable parts are respectively mounted on the corresponding limiting posts; when the tape feed wheel rotates counterclockwise, the outer end of the gravity movable part is snap-fitted with the inner gear ring, and the inner end of the gravity movable part is snap-fitted with the outer gear ring; when the tape feed wheel rotates clockwise, the outer end of the gravity movable part is disengaged from the inner gear ring, and the inner end of the gravity movable part is disengaged from the outer gear ring.
2. The silent anti-rotation structure of the correction tape according to claim 1, characterized in that: The gravity movable part includes a limiting sleeve, an outer clamping strip, an inner clamping strip and a weighting sheet. A guide groove is provided on the inner wall of the limiting sleeve, and a guide strip matching the guide groove is provided on the outer wall of the limiting column. The limiting sleeve is sleeved on the limiting column, and the guide strip is in the guide groove; the inner end of the outer clamping strip, the outer end of the inner clamping strip, and one end of the weighting sheet are all installed on the outer wall of the limiting sleeve, and there is an angle between the outer clamping strip and the inner clamping strip, the weighting sheet is in the area where the angle is located, and the outer clamping strip, the inner clamping strip, and the weighting sheet are all on the same plane; the outer end of the outer clamping strip is snap-fitted with the inner gear ring, and the inner end of the inner clamping strip is snap-fitted with the outer gear ring.
3. The silent anti-rotation structure of the correction tape according to claim 2, characterized in that: On the inner gear ring, an inner tooth groove is provided between two adjacent inner teeth, and an outer clamping tooth is provided on the outer end of the outer clamping strip, and the outer clamping tooth is located in the inner tooth groove; on the outer gear ring, an outer tooth groove is provided between two adjacent outer teeth, and an inner clamping tooth is provided on the inner end of the inner clamping strip, and the inner clamping tooth is located in the outer tooth groove.
4. The silent anti-rotation structure of the correction tape according to claim 3, characterized in that: Each of the inner teeth is provided with a first guide surface and a first vertical surface, each of the first guide surfaces is inclined in a counterclockwise direction from the outside to the inside, an outer arc portion is provided on the outer end portion of the external clamping tooth, the outer arc portion is slidably matched with each of the first guide surfaces, and the tooth tip of the external clamping tooth is snap-fitted with the first vertical surface; each of the outer teeth is provided with a second guide surface and a second vertical surface, each of the second guide surfaces is inclined in a counterclockwise direction from the inside to the outside, an inner arc portion is provided on the inner end portion of the internal clamping tooth, the inner arc portion is slidably matched with each of the second guide surfaces, and the tooth tip of the internal clamping tooth is snap-fitted with the second vertical surface.
5. The silent anti-rotation structure of the correction tape according to claim 2, characterized in that: The angle opening of the gravity movable part below the first clamping column is the first opening, and the angle opening of the gravity movable part above the first clamping column is the second opening. The first opening faces the pressure head, and the second opening direction is opposite to the first opening direction.
6. The silent anti-rotation structure of the correction tape according to claim 2, characterized in that: The included angle between the outer card strip and the inner card strip is 110°-140°.