CN210028630U - Large gear friction structure of correction tape - Google Patents
Large gear friction structure of correction tape Download PDFInfo
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- CN210028630U CN210028630U CN201920654152.1U CN201920654152U CN210028630U CN 210028630 U CN210028630 U CN 210028630U CN 201920654152 U CN201920654152 U CN 201920654152U CN 210028630 U CN210028630 U CN 210028630U
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- connecting rod
- gearwheel
- friction structure
- piece
- correction tape
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Abstract
The utility model discloses a correction tape gear wheel friction structure, including gear wheel (1) and area core circle (2), the one end of the centre bore of gear wheel (1) is equipped with connecting rod (3), establish outside connecting rod (3) area core circle (2), its characterized in that: an elastic part (4) which enables the connecting rod (3) to be radially opened is arranged in the connecting rod (3), and at least one close-fitting point is arranged on the inner wall of the connecting rod (3) and the inner wall of the core ring (2) under the action of the elastic part (4). The structure can ensure that the gearwheel and the belt core ring have enough friction and good stability.
Description
Technical Field
The utility model relates to a study article technical field, specifically say a correction tape gear wheel friction structure.
Background
The correction tape is mainly used for correcting wrong characters, symbols and the like, and is a common study and work article for people. When the correction tape is used, the tape core ring is driven to rotate when the correction tape is coated, the tape core ring drives the large gear to rotate, the large gear is meshed with the small gear, the small gear is driven to rotate, and the used tape is wound on the small gear. Because the friction structure of the current correction belt gearwheel comprises the gearwheel and the belt core ring, one end of the central hole of the gearwheel is provided with a connecting rod, the belt core ring is arranged outside the connecting rod, the gearwheel and the belt core ring of the structure are only attached by means of the matching tolerance of the gearwheel and the belt core ring, and are easily affected by high temperature, low temperature and time, so that the friction force is unstable, and the dragging phenomenon can often occur.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a correction area gear wheel friction structure that can guarantee that gear wheel and area core circle have sufficient frictional force and stability is good.
The technical scheme of the utility model is, a correction area gear wheel friction structure with following structure is provided, including gear wheel and area core circle, the one end of the centre bore of gear wheel is equipped with the connecting rod, the area core circle is established outside the connecting rod, be equipped with in the connecting rod and make the radial open elastic component of connecting rod, the outer wall of connecting rod and the inner wall of taking the core circle are equipped with a point of hugging closely at least under the effect of elastic component.
The outer wall of the connecting rod is at least provided with a convex strip which is distributed along the axial direction, and the convex strip is tightly attached to the inner wall of the belt core ring.
The elastic piece is an arched elastic piece and protrudes outwards in the radial direction.
The connecting rod comprises an inner rod and an outer rod, the outer rod comprises a first arc sheet and a second arc sheet, and a space is formed between two side walls of the first arc sheet and two side walls of the second arc sheet; the elastic piece is located between the inner rod and the outer rod, one end of the elastic piece abuts against the first arc piece, and the other end of the elastic piece abuts against the second arc piece.
A stop strip is arranged between the inner wall of the first arc piece and the inner rod, grooves distributed along the axial direction are formed in the second arc piece, one end of the elastic piece abuts against the stop strip, and the other end of the elastic piece is embedded into the grooves.
The other end of the elastic piece is provided with an outward bending edge, and the bending edge is embedded into the groove.
And a space is arranged between the end part of the outer end of the groove and the end part of the outer end of the second arc sheet.
The convex strip is positioned on the back surface of the groove.
The convex strips are arc surfaces.
After the structure more than adopting, the utility model has the advantages of it is following: through increasing the elastic component in the connecting rod, provide the radial open elasticity of connecting rod, the inner wall of connecting rod and band core circle is equipped with a point of hugging closely at least to both produce frictional force through the point of hugging closely, the elasticity of elastic component can guarantee that both have sufficient, stable frictional force, and it is rotatory to make the rotation of band core circle can drive the gear wheel, and the frictional force of both like this is produced by the elastic component, and frictional force is stable not influenced by high low temperature and time.
As the improvement, the outer wall of connecting rod is equipped with one at least along the sand grip of axial distribution, the sand grip is hugged closely with the inner wall of taking the core circle, and the sand grip enables the connecting rod to have more contact position with the inner wall of taking the core circle, and stability is better.
As an improvement, the elastic piece is an arched elastic piece and protrudes outwards in the radial direction, the elastic piece is convenient to mount, the elastic piece has elasticity when being opened, and the supporting connecting rod is opened in the radial direction.
As an improvement, the connecting rod comprises an inner rod and an outer rod, the outer rod comprises a first arc sheet and a second arc sheet, and a space is arranged between two side walls of the first arc sheet and two side walls of the second arc sheet; the elastic piece is located between the inner rod and the outer rod, one end of the elastic piece abuts against the first arc piece, the other end of the elastic piece abuts against the second arc piece, and the elastic piece enables the first arc piece and the second arc piece of the outer rod to be in radial stretching positions.
As an improvement, a stop strip is arranged between the inner wall of the first arc piece and the inner rod, grooves distributed along the axial direction are formed in the second arc piece, one end of the elastic piece abuts against the stop strip, the other end of the elastic piece is embedded into the grooves, and the installation stability of the elastic piece is improved.
As an improvement, the other end of the elastic piece is provided with an outward bending edge, and the bending edge is embedded into the groove, so that the elastic piece and the groove are connected more firmly.
As the improvement, be equipped with the interval between the outer end tip of recess and the outer end tip of second circular arc piece, the recess does not extend to the tip promptly to there is axial spacing nature after making the elastic component embedding, increase stability.
As an improvement, the raised strips are positioned on the back of the grooves, so that the structure is compact, and the strength is ensured.
As an improvement, the raised strips are arc surfaces, so that the raised strips can be abutted against the belt core ring at any angle.
Drawings
Fig. 1 is a schematic view of the front view of the present invention.
Fig. 2 is a schematic diagram of the explosion of the present invention.
Fig. 3 is a schematic structural view of a first view angle of the gearwheel of the present invention.
Fig. 4 is a schematic structural diagram of a second view angle of the gearwheel of the present invention.
Shown in the figure:
1. bull gear, 2, area core circle, 3, connecting rod, 3.1, interior pole, 3.2, outer pole, 3.2.1, first circular arc piece, 3.2.1.1, shelves strip, 3.2.2, second circular arc piece, 3.2.2.1, recess, 3.3, sand grip.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-4, the utility model discloses a correction tape gear wheel friction structure, including gear wheel 1 and area core circle 2, the one end of the centre bore of gear wheel 1 is equipped with connecting rod 3, area core circle 2 is established outside connecting rod 3, be equipped with in the connecting rod 3 and make the radial open elastic component 4 of connecting rod 3, the outer wall of connecting rod 3 and the inner wall of taking core circle 2 are equipped with a point of hugging closely at least under the effect of elastic component 4, still can be for a plurality of points, or a line or a face of constituteing by a plurality of points.
This implementation the outer wall of connecting rod 3 is equipped with a sand grip 3.3 along axial distribution, sand grip 3.3 is hugged closely with the inner wall of taking core circle 2. A plurality of convex strips 3.3 and the like can be arranged on the outer wall.
The elastic piece 4 is an arched elastic piece and protrudes outwards in the radial direction, and the elastic piece 4 is an arc surface and can generate elasticity after being extruded after being installed. The elastic element 4 may also be made of other parts, such as strip-shaped elastic wires, and the elastic element 4 may be made of metal material or other materials with strong deformation resistance.
Connecting rod 3 includes interior pole 3.1 and outer pole 3.2, outer pole 3.2 includes first circular arc piece 3.2.1 and second circular arc piece 3.2.2, and first circular arc piece 3.2.1 and second circular arc piece 3.2.2 are located same ring-shaped, be equipped with the interval between the both sides wall of first circular arc piece 3.2.1 and the both sides wall of second circular arc piece 3.2.2, also two are separated to have the space of radially opening or contracting. The elastic piece 4 is located between the inner rod 3.1 and the outer rod 3.2, one end of the elastic piece 4 abuts against the first arc piece 3.2.1, and the other end of the elastic piece 4 abuts against the second arc piece 3.2.2. The method specifically comprises the following steps: be equipped with shelves strip 3.2.1.1 between the inner wall of first circular arc piece 3.2.1 and interior pole 3.1, the inside of second circular arc piece 3.2.2 is equipped with along the recess 3.2.2.1 of axial distribution, the one end of elastic component 4 offsets in shelves strip 3.2.1.1, and the other end embedding is in recess 3.2.2.1. The other end of the elastic piece 4 is provided with an outward bending edge 4.1, and the bending edge 4.1 is embedded in the groove 3.2.2.1. And a space is arranged between the end part of the outer end of the groove 3.2.2.1 and the end part of the outer end of the second arc piece 3.2.2. The outer end tip of recess 3.2.2.1 and the outer end tip of second circular arc piece 3.2.2 still have certain distance promptly to make 4.1 of bending have fine axial positioning effect after embedding recess 3.2.2.1, guarantee elastic component 4's installation reliability, avoid droing.
The sand grip 3.3 is located the back of recess 3.2.2.1, establishes recess 3.2.2.1 in sand grip 3.3 bottoms to can not reduce second circular arc piece 3.2.2 and increase recess 3.2.2.1 thickness, guarantee second circular arc piece 3.2.2's intensity.
The convex strips 3.3 are arc surfaces.
Claims (9)
1. The utility model provides a correction area gear wheel friction structure, includes gear wheel (1) and takes core circle (2), the one end of the centre bore of gear wheel (1) is equipped with connecting rod (3), take core circle (2) to establish outside connecting rod (3), its characterized in that: an elastic part (4) which enables the connecting rod (3) to be radially opened is arranged in the connecting rod (3), and at least one clinging point is arranged on the outer wall of the connecting rod (3) and the inner wall of the core ring (2) under the action of the elastic part (4).
2. The correction tape gearwheel friction structure according to claim 1, characterized in that: the outer wall of connecting rod (3) is equipped with one at least and follows rib (3.3) of axial distribution, rib (3.3) are hugged closely with the inner wall of taking core circle (2).
3. The correction tape gearwheel friction structure according to claim 1, characterized in that: the elastic piece (4) is an arched elastic piece and protrudes outwards in the radial direction.
4. The correction tape gearwheel friction structure according to claim 2, characterized in that: the connecting rod (3) comprises an inner rod (3.1) and an outer rod (3.2), the outer rod (3.2) comprises a first arc piece (3.2.1) and a second arc piece (3.2.2), and a distance is arranged between two side walls of the first arc piece (3.2.1) and two side walls of the second arc piece (3.2.2); the elastic piece (4) is located between the inner rod (3.1) and the outer rod (3.2), one end of the elastic piece (4) abuts against the first arc piece (3.2.1), and the other end of the elastic piece abuts against the second arc piece (3.2.2).
5. The correction tape gearwheel friction structure according to claim 4, characterized in that: be equipped with shelves strip (3.2.1.1) between the inner wall of first circular arc piece (3.2.1) and interior pole (3.1), the inside of second circular arc piece (3.2.2) is equipped with along axially distributed recess (3.2.2.1), the one end of elastic component (4) offsets in shelves strip (3.2.1.1), and the other end embedding is in recess (3.2.2.1).
6. The correction tape gearwheel friction structure according to claim 5, characterized in that: the other end of the elastic piece (4) is provided with an outward bending edge (4.1), and the bending edge (4.1) is embedded in the groove (3.2.2.1).
7. The correction tape gearwheel friction structure according to claim 6, characterized in that: and a space is arranged between the end part of the outer end of the groove (3.2.2.1) and the end part of the outer end of the second arc piece (3.2.2).
8. The correction tape gearwheel friction structure according to claim 5, characterized in that: the convex strips (3.3) are positioned on the back surface of the grooves (3.2.2.1).
9. The correction tape gearwheel friction structure according to claim 2 or 8, characterized in that: the convex strips (3.3) are arc surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920654152.1U CN210028630U (en) | 2019-05-08 | 2019-05-08 | Large gear friction structure of correction tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920654152.1U CN210028630U (en) | 2019-05-08 | 2019-05-08 | Large gear friction structure of correction tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210028630U true CN210028630U (en) | 2020-02-07 |
Family
ID=69364464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920654152.1U Active CN210028630U (en) | 2019-05-08 | 2019-05-08 | Large gear friction structure of correction tape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210028630U (en) |
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2019
- 2019-05-08 CN CN201920654152.1U patent/CN210028630U/en active Active
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