CN217682801U

CN217682801U - Pivot device with overvoltage protection

Info

Publication number: CN217682801U
Application number: CN202220769728.0U
Authority: CN
Inventors: 尤昨尧; 苏宪纮
Original assignee: Leohab Enterprise Co Ltd
Current assignee: Leohab Enterprise Co Ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-10-28
Anticipated expiration: 2032-03-30

Abstract

The utility model relates to a pivot device with overvoltage protection, including a axostylus axostyle and a connecting piece, the axostylus axostyle is including a pole body and a pole head, the pole head is provided with a pivot curved surface and an overpressure curved surface along the radial outer peripheral edges of pole body, pivot curved surface forms a first radius to the distance at pole body center, overpressure curved surface forms a second radius to the distance at pole body center, first radius is less than the second radius, be provided with a backstop convex surface between pivot curved surface and the overpressure curved surface, the pole body is located to the connecting piece pivot, and can rotate between pivot state and overpressure state, and include a tongue piece, when the connecting piece is at pivot state, the tongue piece supports and leans on in pivot curved surface, when the connecting piece is at overpressure state, the tongue piece supports and leans on in overpressure curved surface, and the tongue piece can produce elastic deformation, even the pivot device sees through above-mentioned structure excessive pivot pendulum can not damage yet.

Description

Pivot device with overvoltage protection

Technical Field

The present invention relates to a pivot device, and more particularly to a pivot device with overvoltage protection.

Background

Please refer to the patent of taiwan patent No. M606990, "pivot with multi-stage switching", which is a pivot with multi-stage switching, including a first shaft and a second shaft opposite to the first shaft, wherein the first shaft and the second shaft are respectively sleeved with a torsion member set at one end and a positioning set at the other end. The positioning group is provided with a first positioning plate, a second positioning plate and a positioning block which are separated by a set distance. The first transmission group is arranged between the first positioning plate and the second positioning plate, and the second transmission group is arranged between the second positioning plate and the positioning block. The first transmission set and the second transmission set respectively comprise a concave wheel sleeved on the first shaft, a cam sleeved on the second shaft and a sliding block capable of moving between the concave wheel and the cam.

However, when the pivot is opened or closed, the first limiting portion and the second limiting portion are engaged to control the opening and closing limit states of the pivot, but if the user is unfamiliar with the operation mode of the electronic device, the pivot is still turned over by force in the limit state, which may cause the structure of the first limiting portion and the second limiting portion to be deformed and damaged.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a pivot device with overvoltage protection.

The utility model provides a pivot device with overvoltage protection, its main aim at, a pivot device including a axostylus axostyle and a connecting piece is provided, this axostylus axostyle is including a pole body and a pole head, this pole head can't cup joint in this pole body with rotating relatively, this pole head is provided with a pivotal surface and an overpressure curved surface along the radial outer peripheral edges of this pole body, the distance of this pivotal surface to this pole body center forms a first radius, the distance of this overpressure curved surface to this pole body center forms a second radius, this first radius is less than this second radius, be provided with a backstop convex surface between this pivotal surface and this overpressure curved surface, the distance of this backstop convex surface to this pole body center forms a third radius, this third radius is greater than this first radius and is less than this second radius, this connecting piece pivot is located this pole body, this connecting piece is provided with a tongue piece, this connecting piece can be in the pivot state, limit state and the overpressure state rotates between the state, this tongue piece is when this pivot state, this tongue piece supports and leans on this pivot curved surface to produce this overpressure elastic connection piece, even this tongue piece can not damage by this overpressure curved surface, this pivot structure.

The connecting piece comprises a main board, the tongue piece is provided with a first flat plate section and a second flat plate section, the first flat plate section is connected to the main board, the second flat plate section is connected with one side, far away from the main board, of the first flat plate section in an angle mode and correspondingly contacted with the club head, when the connecting piece is in the pivoting state, the second flat plate section abuts against the pivoting curved surface, when the connecting piece is in the limit state, the second flat plate section abuts against the stopping convex surface, and when the connecting piece is in the overpressure state, the second flat plate section abuts against the overpressure curved surface.

The connecting piece is provided with a pin joint sleeve which is connected with the main board and is arranged on the rod body in a pin joint mode, the tongue piece is connected with the main board, and when the connecting piece is in the limit state, one end, opposite to the main board, of the tongue piece abuts against the stop convex surface.

The pin joint sleeve is adjacent to the tongue piece, the connecting piece is provided with a separation groove along the radial direction of the rod body, and the separation groove is arranged between the pin joint sleeve and the tongue piece so that the pin joint sleeve and the tongue piece are not contacted.

The club body is provided with a round bar section and an edge cutting section, the pin joint sleeve is pivoted on the round bar section, and the club head is fixedly arranged on the edge cutting section.

The tongue piece is further provided with a third plate section which is connected with one side of the second plate section far away from the first plate section in an angle mode, the rod body is provided with a first limiting surface and a second limiting surface along the radial outer periphery of the rod body, and when the connecting piece rotates in the pivoting state, the first limiting surface or the second limiting surface can abut against the third plate section in a surface contact mode.

The third plate segment has a width less than a width of the second plate segment.

The main plate and the first plate section form a main included angle, when the connecting piece is in the pivoting state or the limiting state, the main included angle is substantially equal to 180 degrees, and when the connecting piece is in the overpressure state, the main included angle is larger than 180 degrees.

The utility model has the advantages that, this connecting piece rotates when this excessive pressure state by this extreme condition, and this tongue piece can produce elastic deformation, even this pivot device relies on above-mentioned structure excessive pivot pendulum can not damage yet.

Drawings

Fig. 1 is a perspective view of a photo frame type display showing the pivot device with overvoltage protection of the present invention for pivotally connecting a display panel and a supporting frame.

Fig. 2 is a perspective view of the pivot device with overvoltage protection according to the present invention.

Fig. 3 is an exploded perspective view of the pivot assembly with overvoltage protection of the present invention.

Fig. 4 is a front plan view of the pivot assembly with overvoltage protection of the present invention.

Fig. 5 is a sectional view of the head of the pivotal device connecting member with overvoltage protection of the present invention in a pivotal state.

Fig. 6 is a sectional view of the shaft in a pivoted state of the pivot device connecting member with overvoltage protection according to the present invention.

Fig. 7 is a sectional view of the head of the pivotal device connecting member with overvoltage protection of the present invention in the extreme state.

Fig. 8 is a cross-sectional view of the connecting member of the pivot device with overvoltage protection according to the present invention in an overvoltage state.

The reference numbers illustrate: 10-a pivot means; 20-shaft lever; 21-a shaft; 211-a pole segment; 212-edging section; 2121-a first limiting surface; 2122-a second limiting surface; 22-a club head; 221-a pivoting surface; 222-an overpressure curved surface; 223-a stop convex surface; 30-a connector; 31-a main board; 32-a pivot bushing; 33-a tongue; 331-a first plate section; 332-a second plate segment; 333-a third plate segment; 34-separation groove; 90-a display panel; 91-a support frame; r0-maximum diameter length; r1-a first radius; r2-a second radius; r3-third radius; theta-main angle.

Detailed Description

Referring to fig. 1 and 2, the pivot device 10 with overvoltage protection of the present invention is applied to a display support frame, especially a photo frame type display support frame, the pivot device 10 is pivotally connected to a display panel 90 and a support frame 91, so as to enable the display to be used at different operation angles, wherein some components such as a housing are omitted in some drawings for convenience of description. Fig. 2 shows two pivot devices 10 of the present invention, which are symmetrically disposed and have the same actuation relationship, so only one of them will be described. The pivot assembly 10 includes a shaft 20 and a connector 30, as described in detail below.

Referring to fig. 3, 4 and 5, the shaft 20 includes a shaft 21 and a club head 22, the shaft has a shaft section 211 and a chamfered section 212, the chamfered section 212 has a maximum diameter length R0; the club head 22 is fixed to the chamfered section 212, and in the embodiment, the club head 22 is sleeved on the club body 21 without being rotated relatively, but not limited thereto. The club head 22 is provided with a pivot curved surface 221 and an overpressure curved surface 222 along the radial outer periphery of the club body 21, a first radius R1 is formed by the distance from the pivot curved surface 221 to the center of the club body 21, a second radius R2 is formed by the distance from the overpressure curved surface 222 to the center of the club body 21, the first radius R1 is smaller than the second radius R2, a stop convex surface 223 is arranged between the pivot curved surface 221 and the overpressure curved surface 222, a third radius R3 is formed by the distance from the stop convex surface 223 to the center of the club body 21, and the third radius R3 is larger than the first radius R1 and smaller than the second radius R2. Wherein, the maximum diameter length R0 is less than two times of R1 and less than two times of R2.

Referring to fig. 6, 7 and 8, the connecting member 30 is pivotally disposed on the shaft 21, the connecting member 30 has a main plate 31, a pivot sleeve 32 and a tongue 33, the pivot sleeve 32 and the tongue 33 are adjacently connected to a same side edge of the main plate 31, the pivot sleeve 32 is pivotally disposed on the circular rod section 211 (i.e. the enveloping center) of the shaft 21, so that the connecting member 30 can rotate and change between the pivot state, the limit state and the overpressure state, the tongue 33 has a first plate section 331, a second plate section 332 and a third plate section 333, the first plate section 331 is connected to the main plate 31, the second plate section 332 is angularly connected to a side of the first plate section 331 away from the main plate 31 and correspondingly contacts with the club head 22, and the third plate section 333 is angularly connected to a side of the second plate section 332 away from the first plate section 331. When the connecting member 30 is in the pivot state, the second plate section 332 abuts against the curved pivot surface 221, when the connecting member 30 is in the limit state, the second plate section 332 abuts against the convex stop surface 223, when the connecting member 30 is in the overpressure state, the second plate section 332 abuts against the curved overpressure surface 222, and the tongue piece 33 can be elastically deformed. The width of the third plate section 333 is smaller than the width of the second plate section 332, so as to avoid the interference between the club head 22 and the third plate section 333.

Referring to fig. 5 again, the main plate 31 and the first plate 331 form a main included angle θ, the main included angle θ is substantially equal to 180 degrees in the pivot state or the limit state, and the main included angle θ is greater than 180 degrees, for example, 195 degrees when the connecting member 30 is in the overpressure state, and the 15 degree angle difference is generated due to the elastic deformation of the tongue piece 33 relative to the main plate 31. Further, the larger the difference between the second radius R2 and the first radius R1, the larger the angular difference of the main included angle θ, and the smaller the difference between the second plate R2 and the first radius R1, the smaller the angular difference of the main included angle θ, which may be a change of 5 to 30 degrees, for example.

It should be added that when the connecting element 30 is rotated to the limit state, the stopping convex surface 223 has a stopping point effect, so that the user can feel the hand and avoid further rotating the connecting element 30, but even if the user carelessly rotates excessively, the tongue piece 33 can elastically deform (change the main included angle θ) to avoid damage when the connecting element 30 is rotated to the limit state.

In addition, the pivot sleeve 32 is adjacent to the tongue piece 33, and the connecting member 30 is provided with a separating groove 34 along the radial direction of the shaft 21, i.e. between the pivot sleeve 32 and the tongue piece 33, so that the tongue piece 33 can easily generate elastic deformation relative to the main plate 31.

In this embodiment, the chamfered section 212 of the shaft 21 is a double chamfered edge, that is, a first limiting surface 2121 and a second limiting surface 2122 are disposed along the radial outer periphery thereof, when the connecting member 30 rotates in the pivot state, the first limiting surface 2121 or the second limiting surface 2122 can abut against the third flat section 333 of the tongue piece 33 in a surface contact manner, and the above design can enhance the hand feeling of the user during operation.

To sum up, the utility model discloses pivot device with overvoltage protection, wherein pivot device is including a axostylus axostyle and a connecting piece, this axostylus axostyle is including a pole body and a pole head, this pole head can't cup joint in this pole body with rotating relatively, this pole head is provided with a pivot surface and an overpressure curved surface along this radial outer peripheral edge of pole body, the distance of this pivot surface to this pole body center forms a first radius, the distance of this overpressure curved surface to this pole body center forms a second radius, this first radius is less than this second radius, be provided with a backstop convex surface between this pivot surface and this overpressure curved surface, the distance of this backstop convex surface to this pole body center forms a third radius, this third radius is greater than this first radius and is less than this second radius, this connecting piece pivot is located this pole body, this connecting piece is provided with a tongue piece, this connecting piece can be at pivot state, limit state and overpressure state rotate, this tongue piece is at this pivot state, this tongue piece supports and leans on this pivot curved surface, this tongue piece can be passed through this overpressure curved surface and rotate this pivot structure when this limit state, even this tongue piece can be damaged by this overpressure elastic connection piece.

Claims

1. A pivot device with overvoltage protection, comprising:

the club head is provided with a pivoting curved surface and an overpressure curved surface along the radial outer periphery of the club body, the distance from the pivoting curved surface to the center of the club body forms a first radius, the distance from the overpressure curved surface to the center of the club body forms a second radius, the first radius is smaller than the second radius, a stopping convex surface is arranged between the pivoting curved surface and the overpressure curved surface, the distance from the stopping convex surface to the center of the club body forms a third radius, and the third radius is larger than the first radius and smaller than the second radius;

the connecting piece is pivoted on the rod body, can rotate between a pivoting state and an overpressure state and comprises a tongue piece, when the connecting piece is in the pivoting state, the tongue piece abuts against the pivoting curved surface, when the connecting piece is in the overpressure state, the tongue piece abuts against the overpressure curved surface, and the tongue piece can generate elastic deformation.

2. The pivot device with overvoltage protection as claimed in claim 1, wherein the stop convex surface is connected between the pivot curved surface and the overvoltage curved surface, the connecting member can rotate to an extreme state, and the tongue piece abuts against the stop convex surface.

3. The pivot device with overvoltage protection as claimed in claim 2, wherein the connecting member includes a main plate, the tongue has a first plate section and a second plate section, the first plate section is connected to the main plate, the second plate section is connected to a side of the first plate section away from the main plate at an angle and is correspondingly contacted by the rod head, when the connecting member is in the pivot state, the second plate section abuts against the curved pivot surface, when the connecting member is in the limit state, the second plate section abuts against the convex stop surface, and when the connecting member is in the overvoltage state, the second plate section abuts against the curved overpressure surface.

4. The pivot device with overvoltage protection as claimed in claim 3, wherein the connecting member further comprises a pivot sleeve, the pivot sleeve is connected to the main plate and pivotally connected to the shaft, the tongue piece is connected to the main plate, and the tongue piece can elastically deform relative to the main plate.

5. The pivot device with overvoltage protection as claimed in claim 4, wherein the pivot sleeve is adjacent to the tongue, and the connecting member is provided with a separation groove along the radial direction of the shaft, the separation groove being provided between the pivot sleeve and the tongue.

6. The pivot device with overvoltage protection as claimed in claim 5, wherein said shaft has a circular section and a chamfered section, said pivot sleeve is pivotally mounted on said circular section, said head is mounted on said chamfered section.

7. The pivot device with overvoltage protection as claimed in claim 6, wherein said tongue further has a third plate section, said third plate section is angularly connected to a side of said second plate section away from said first plate section, said shaft is provided with a first limiting surface and a second limiting surface along its radial outer periphery, said first limiting surface or said second limiting surface can abut against said third plate section in a surface contact manner when said connecting member rotates in said pivot state.

8. The pivot device with overvoltage protection as claimed in claim 7, wherein the width of said third plate section is less than the width of said second plate section.

9. The pivot device with overvoltage protection as claimed in claim 7, wherein the main plate and the first plate section form a main included angle, the main included angle is equal to 180 degrees when the connecting member is in the pivot state or the limit state, and the main included angle is greater than 180 degrees when the connecting member is in the overvoltage state.