CN211574013U - Internal and external tooth meshing structure capable of realizing folding of folding screen product - Google Patents
Internal and external tooth meshing structure capable of realizing folding of folding screen product Download PDFInfo
- Publication number
- CN211574013U CN211574013U CN201921132817.9U CN201921132817U CN211574013U CN 211574013 U CN211574013 U CN 211574013U CN 201921132817 U CN201921132817 U CN 201921132817U CN 211574013 U CN211574013 U CN 211574013U
- Authority
- CN
- China
- Prior art keywords
- shell
- half shaft
- middle shell
- arc
- folding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Extensible Doors And Revolving Doors (AREA)
Abstract
The utility model relates to the technical field of folding screen products, in particular to an internal and external tooth meshing structure capable of realizing folding of a folding screen product, which comprises a first shell, a middle shell and a second shell, wherein the first shell and the middle shell are rotatably arranged, and the second shell is connected with the middle shell; the first shell is rotatably arranged with the middle shell through the half shaft piece, the half shaft piece is provided with an arc-shaped groove and an arc-shaped inner gear ring positioned in the arc-shaped groove, the arc-shaped inner gear ring is arranged around the rotating axes of the half shaft piece and the middle shell, the outer gear is rotatably arranged on the middle shell, and the outer gear is meshed with the arc-shaped inner gear ring; when the folding screen is bent and folded, the first shell rotates relative to the middle shell through the half shaft piece, and in the rotating process of the half shaft piece, the outer gear is engaged with the arc-shaped inner gear ring in a friction fit mode, so that the folding screen is stably folded or stably unfolded, and the damage caused by instantaneous folding or instantaneous unfolding of the folding screen is avoided.
Description
Technical Field
The utility model relates to a folding screen product technical field especially discloses a can realize folding inside and outside tooth meshing structure of folding screen product.
Background
With the development of science and technology, electronic products such as tablet computers and smart phones have gradually become one of the basic tools of people in daily life, and in the use process of the tablet computers and the smart phones, users often need to adjust the screen display angles of the screen computers and the smart phones according to the actual use states, so that electronic products with foldable screens can be produced at the same time.
Because the structural design of the electronic product with the foldable screen in the prior art is unreasonable, the foldable screen can be folded or unfolded instantly in the folding process or the unfolding process of the foldable screen, and the damage to the foldable screen is easily caused.
Disclosure of Invention
In order to overcome the shortcoming and the not enough that exist among the prior art, the utility model aims to provide a can realize folding inside and outside tooth meshing structure of shielding product folding utilizes the meshing friction fit of outer gear and arc ring gear for folding screen is steadily folded or steadily expandes, avoids folding screen folding in the twinkling of an eye or expandes in the twinkling of an eye and harm.
In order to achieve the above object, the present invention provides an internal and external teeth meshing structure capable of folding a foldable screen product, including a first casing, a middle casing, and a second casing, wherein the first casing and the middle casing are rotatably disposed, the second casing is connected to the middle casing, the first casing and the second casing are used for connecting two ends of an external foldable screen, and the middle casing corresponds to the middle part of the foldable screen connected to the first casing and the second casing; the half shaft part and the middle shell are rotatably arranged, the first shell is detachably connected with the half shaft part, the first shell is rotatably arranged with the middle shell through the half shaft part, the half shaft part is provided with an arc-shaped groove and an arc-shaped inner gear ring located in the arc-shaped groove, the arc-shaped inner gear ring is arranged around the rotating axis of the half shaft part and the rotating axis of the middle shell, the outer gear is rotatably arranged in the middle shell, and the outer gear is located in the arc-shaped groove and meshed with the arc-shaped inner gear ring.
The half shaft piece is provided with a pit, the pit and the arc-shaped groove are respectively formed by concavely arranging two sides of the half shaft piece, which are far away from each other, the middle shell is provided with an elastic protruding column, and the elastic protruding column is used for extending into the pit.
The elastic stud comprises an elastic piece and a rolling ball, the middle shell is provided with a containing hole, the elastic piece and the rolling ball are both positioned in the containing hole, and the rolling ball is extruded and pushed by the elastic piece under the action of elastic force so that the rolling ball extends out of the middle shell and enters the concave pit.
The elastic stud also comprises an adjusting screw, the adjusting screw is screwed in the accommodating hole, the elastic piece is positioned between the adjusting screw and the rolling ball, and the adjusting screw is used for extruding the elastic piece to change the elastic force applied to the rolling ball by the elastic piece.
Wherein, the middle shell is provided with the stopper, and the stopper is equipped with the groove of stepping down that is used for holding to establish semi-axis spare, and semi-axis spare rotates with the middle shell via the groove of stepping down and sets up, and elasticity abrupt post sets up in the lateral wall of groove one side of stepping down, and the external gear rotates and sets up in the lateral wall of groove opposite side of stepping down.
The two sides of the half shaft piece, which are far away from each other, are provided with lug parts, and the lug parts on the two sides of the half shaft piece are respectively blocked above the side walls on the left side and the right side of the limiting abdicating groove.
Has the advantages that: when the folding screen is bent and folded, the first shell rotates relative to the middle shell through the half shaft piece, and in the rotating process of the half shaft piece, the outer gear is engaged with the arc-shaped inner gear ring in a friction fit mode, so that the folding screen is stably folded or stably unfolded, and the damage caused by instantaneous folding or instantaneous unfolding of the folding screen is avoided.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a perspective view of the half shaft member, the external gear, the limiting block and the elastic stud of the present invention.
Fig. 4 is a perspective view of the half shaft member of the present invention.
Fig. 5 is a perspective view of another view angle of the half shaft of the present invention.
The reference numerals include:
1-first housing 2-intermediate housing 3-second housing
4-half shaft part 5-external gear 6-arc groove
7-arc inner gear ring 8-pit 9-elastic protruding column
11-elastic piece 12-rolling ball 13-adjusting screw
14-a limiting block 15-a abdicating groove 16-a lug part.
Detailed Description
The present invention will be further described with reference to the following examples and accompanying drawings.
Referring to fig. 1 to 5, an inner and outer teeth meshing structure for folding a foldable screen product of the present invention includes a first casing 1, a middle casing 2, and a second casing 3, wherein the first casing 1 and the middle casing 2 are rotatably disposed, the second casing 3 is connected to the middle casing 2, the first casing 1 and the second casing 3 are used for connecting the left and right ends of an external foldable screen, and the middle casing 2 corresponds to the middle portion of the foldable screen connected to the first casing 1 and the second casing 3; still include half shaft spare 4, external gear 5, half shaft spare 4 is the semicircle column, external gear 5 is the cylindrical gear, half shaft spare 4 rotates with middle shell 2 and sets up, first casing 1 can dismantle with half shaft spare 4 and be connected, first casing 1 rotates the setting with middle shell 2 via half shaft spare 4, be equipped with arc recess 6 on the half shaft spare 4 and be located the arc ring gear 7 of arc recess 6, arc recess 6 is established from the terminal surface of half shaft spare 4 is concave and is formed, arc ring gear 7 encircles half shaft spare 4 and the axis of rotation setting of middle shell 2, external gear 5 rotates and sets up on middle shell 2, external gear 5 is located arc recess 6 and meshes with arc ring gear 7.
When the folding screen is bent and folded, the first shell 1 rotates relative to the middle shell 2 through the half shaft piece 4, and in the rotating process of the half shaft piece 4, the outer gear 5 and the arc-shaped inner gear ring 7 are engaged and friction-fitted, so that the folding screen is stably folded or stably unfolded, the damage caused by instantaneous folding or instantaneous unfolding of the folding screen is avoided, the service life of the folding screen is prolonged, and the service performance of a folding screen product is improved.
Be provided with pit 8 on the half axle spare 4, pit 8, arc recess 6 are established from the both sides that half axle spare 4 kept away from each other concavely respectively and are formed, are provided with elasticity abrupt post 9 on middle shell 2, and elasticity abrupt post 9 is used for stretching into in the pit 8. During the rotation of the half shaft piece 4, the side surface of the half shaft piece 4 presses the elastic protruding column 9, so that the elastic protruding column 9 is internally cabled; when the half shaft piece 4 rotates to a preset folding angle, the elastic protruding column 9 protrudes into the concave pit 8, the inner pit wall of the concave pit 8 is abutted against the elastic protruding column 9, the folding angle of the folding screen can be stably positioned, and the using performance of a folding screen product is improved.
The elastic stud 9 comprises an elastic part 11 and a rolling ball 12, a containing hole is formed in the middle shell 2, the elastic part 11 and the rolling ball 12 are both located in the containing hole, and the rolling ball 12 is pushed by the elastic part 11 under the action of elastic force, so that the rolling ball 12 protrudes out of the middle shell 2 and enters the concave pit 8. In the rotation process of the half shaft piece 4, the surface of the half shaft piece 4 is abutted against the rolling ball 12, the rolling ball 12 and the half shaft piece 4 roll relatively, the abrasion between the half shaft piece 4 and the elastic protruding column 9 is reduced, and the friction noise between the half shaft piece 4 and the elastic protruding column 9 is reduced.
The elastic stud 9 further includes an adjusting screw 13, the adjusting screw 13 is screwed in the receiving hole, the elastic element 11 is located between the adjusting screw 13 and the rolling ball 12, preferably, the elastic element 11 is a spring, two ends of the spring respectively abut against the rolling ball 12 and the adjusting screw 13, and the adjusting screw 13 is used for pressing the elastic element 11 to change the elastic force applied by the elastic element 11 on the rolling ball 12.
In the use process of the folding screen product, according to the actual needs of different users, the adjusting screw 13 is rotated, so that the adjusting screw 13 moves along the accommodating hole, the moved adjusting screw 13 pushes the elastic piece 11 or releases the elastic piece 11, the elastic force applied on the rolling ball 12 by the elastic piece 11 is changed, and the blocking force for positioning the folding screen at a preset folding angle by the elastic stud 9 is changed. Preferably, the number of the elastic posts 9 is plural, and the plural elastic posts 9 are provided around the rotational axis between the half shaft member 4 and the intermediate case 2.
Be provided with stopper 14 on middle shell 2, stopper 14 is equipped with the groove of stepping down 15 that is used for holding half axle spare 4, and the groove of stepping down 15 is established from the top surface of middle shell 2 is concave and is formed, and half axle spare 4 sets up through stepping down groove 15 and middle shell 2 rotation, and elasticity is suddenly post 9 and is set up the lateral wall in groove of stepping down 15 one side, and external gear 5 rotates the lateral wall that sets up at groove of stepping down 15 opposite sides, and elasticity is suddenly post 9, external gear 5 is located the lateral wall of the groove of stepping down 15 left and right sides respectively.
The two sides of the half shaft piece 4 far away from each other are provided with lug parts 16, and the lug parts 16 on the two sides of the half shaft piece 4 are respectively blocked above the side walls on the left side and the right side of the limiting abdicating groove 15. The half shaft piece 4 and the middle shell 2 are directly connected without other components, the lug parts 16 are arranged to block the external gear 5 in the arc-shaped groove 6 through the lug parts 16, the half shaft piece 4 is firmly limited in the abdicating groove 15 by the external gear 5 and the elastic protruding columns 9, and the half shaft piece 4 is prevented from moving out of the abdicating groove 15 and being separated from the middle shell 2.
The above description is only for the preferred embodiment of the present invention, and the present specification should not be construed as limiting the present invention.
Claims (6)
1. An internal and external tooth meshing structure capable of realizing folding of a folding screen product comprises a first shell, a middle shell and a second shell, wherein the first shell and the middle shell are rotatably arranged, the second shell is connected with the middle shell, the first shell and the second shell are used for connecting two ends of an external folding screen, and the middle shell corresponds to the middle part of the folding screen connected with the first shell and the second shell; the method is characterized in that: the half shaft part and the middle shell are rotatably arranged, the first shell is detachably connected with the half shaft part, the first shell is rotatably arranged with the middle shell through the half shaft part, the half shaft part is provided with an arc-shaped groove and an arc-shaped inner gear ring located in the arc-shaped groove, the arc-shaped inner gear ring is arranged around the rotating axis of the half shaft part and the rotating axis of the middle shell, the outer gear is rotatably arranged in the middle shell, and the outer gear is located in the arc-shaped groove and meshed with the arc-shaped inner gear ring.
2. The structure of claim 1, wherein the inner and outer teeth are engaged with each other to fold the foldable screen product, and the structure comprises: the half shaft piece is provided with a pit, the pit and the arc-shaped groove are respectively formed by concavely arranging two sides of the half shaft piece, which are far away from each other, and the middle shell is provided with an elastic protruding column which is used for extending into the pit.
3. The structure of claim 2, wherein the inner and outer teeth are engaged with each other to fold the foldable screen product, and the structure comprises: the elastic stud comprises an elastic piece and a rolling ball, the middle shell is provided with a containing hole, the elastic piece and the rolling ball are both positioned in the containing hole, and the rolling ball is extruded and pushed by the elastic piece under the action of elastic force so that the rolling ball extends out of the middle shell and enters the concave pit.
4. The structure of claim 3, wherein the inner and outer teeth are engaged with each other to fold the foldable screen product, and the structure comprises: the elastic stud further comprises an adjusting screw, the adjusting screw is screwed in the accommodating hole, the elastic piece is located between the adjusting screw and the rolling ball, and the adjusting screw is used for extruding the elastic piece to change the elastic force applied to the rolling ball by the elastic piece.
5. The structure of claim 2, wherein the inner and outer teeth are engaged with each other to fold the foldable screen product, and the structure comprises: the middle shell is provided with the stopper, and the stopper is equipped with the groove of stepping down that is used for holding to establish semi-axis spare, and semi-axis spare rotates the setting with the middle shell via the groove of stepping down, and elasticity abrupt post sets up in the lateral wall of groove one side of stepping down, and the external gear rotates and sets up in the lateral wall of groove opposite side of stepping down.
6. The structure of claim 5, wherein the inner and outer teeth are engaged with each other to fold the foldable screen product, and the structure comprises: the two sides of the half shaft piece, which are far away from each other, are provided with lug parts, and the lug parts on the two sides of the half shaft piece are respectively blocked above the side walls on the left side and the right side of the limiting abdicating groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921132817.9U CN211574013U (en) | 2019-07-18 | 2019-07-18 | Internal and external tooth meshing structure capable of realizing folding of folding screen product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921132817.9U CN211574013U (en) | 2019-07-18 | 2019-07-18 | Internal and external tooth meshing structure capable of realizing folding of folding screen product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211574013U true CN211574013U (en) | 2020-09-25 |
Family
ID=72522006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921132817.9U Expired - Fee Related CN211574013U (en) | 2019-07-18 | 2019-07-18 | Internal and external tooth meshing structure capable of realizing folding of folding screen product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211574013U (en) |
-
2019
- 2019-07-18 CN CN201921132817.9U patent/CN211574013U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20240111340A1 (en) | Folding mechanism and electronic device | |
| US20210271294A1 (en) | Rotating Shaft Mechanism and Mobile Terminal | |
| CN100572829C (en) | Multi-section rotation shaft structure | |
| CN113719525A (en) | Rotary hinge, folding machine shell and electronic equipment | |
| CN112153179B (en) | Rotating shaft mechanism and mobile terminal | |
| CN211741963U (en) | Rotating shaft mechanism and electronic equipment | |
| CN211574013U (en) | Internal and external tooth meshing structure capable of realizing folding of folding screen product | |
| CN209881840U (en) | Damping type limiting mechanism of foldable screen product | |
| CN216044966U (en) | Rotary hinge, folding machine shell and electronic equipment | |
| CN116708613B (en) | Foldable mechanism and foldable terminal | |
| CN112738308B (en) | Folding mechanism and folding electronic equipment | |
| EP4354835A1 (en) | Folding mechanism and electronic device | |
| CN210015402U (en) | Double-screen type foldable structure | |
| CN112153832B (en) | Rotating shaft mechanism and foldable mobile terminal | |
| CN210351882U (en) | Cam jacking mechanism of foldable screen product | |
| CN113721372B (en) | Intelligent glasses hinge structure | |
| CN211574008U (en) | Limiting mechanism for folding angle of foldable screen | |
| CN215769526U (en) | Rotating shaft structure and folding electronic equipment | |
| CN113562322B (en) | Storage box and opening and closing device of storage box | |
| CN116075083A (en) | Rotating shaft mechanism and electronic equipment | |
| CN210949514U (en) | Rotating shaft with angle self-locking function | |
| WO2024037140A1 (en) | Hinge device, folding housing and electronic apparatus | |
| CN216490591U (en) | Connecting assembly and electronic equipment protective shell | |
| CN217957110U (en) | Mobile terminal spring hinge | |
| CN212838939U (en) | Hinge mechanism and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200925 Termination date: 20210718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |