TWM630315U - Pivot device with overvoltage protection - Google Patents

Abstract

The pivot device with overpressure protection in the present invention includes a shaft rod and a connecting piece, the shaft rod includes a rod body and a rod head, and the rod head is provided with a pivot surface and a rod head along the radial outer periphery of the rod body. Overpressure surface, the distance from the pivot surface to the center of the shaft forms a first radius, and the distance from the overpressure surface to the center of the shaft forms a second radius, the first radius is smaller than the second radius, and the distance between the pivot surface and the overpressure surface forms a second radius. A stop convex surface is arranged between the two parts, the connecting piece is pivoted on the rod body, and can rotate between the pivoting state and the overpressure state, and includes a tongue piece, when the connecting piece is in the pivoting state, the tongue piece abuts against the The pivoting curved surface, when the connector is in the overpressure state, the tongue piece abuts against the overpressure curved surface, and the tongue piece can produce elastic deformation, and the pivot device will not be damaged even if it is pivoted excessively through the above structure.

Description

Pivot unit with overvoltage protection

This creation mainly discloses a pivot device, especially a pivot device with overvoltage protection.

Please refer to Chinese Patent No. M606990 "Pivot with Multi-stage Switching", which is a pivot with multi-stage switching, including a first axis and a second axis opposite to the first axis, the first axis and the second axis Each end is sleeved with the torsion member group, and the other end is sleeved with the positioning group. The positioning group has a first positioning plate, a second positioning plate and a positioning block 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. Each of the first and second transmission groups includes a cam wheel sleeved on the first shaft, a cam sleeved on the second shaft, and a slider that can move between the cam wheel and the cam.

However, when the pivot shaft is unfolded or closed, the limit state of the pivot shaft being unfolded and closed is controlled by the cooperation of the first restriction portion and the second restriction portion. However, if the user is not familiar with the operation method of the electronic device, the pivot shaft is in In the limit state, if the force is still turned over, the structural deformation of the first restricting part and the second restricting part will be damaged.

In view of the lack of the above-mentioned conventional structure, the inventors have designed a pivot device with overvoltage protection, which can overcome all the shortcomings of the above-mentioned conventional structure.

The main purpose of this invention is to provide a pivot device including a shaft and a connecting piece, and the shaft includes a shaft and a head, and the head cannot rotate relatively is sleeved on the shaft, the head is provided with a pivoting curved surface and an overpressure curved surface along the radial outer periphery of the shaft, the distance from the pivoting curved surface to the center of the shaft forms a first radius, the The distance from the overpressure curved surface to the center of the shaft forms a second radius, the first radius is smaller than the second radius, a stop convex surface is arranged between the pivot curved surface and the overpressure curved surface, and the stop convex surface reaches the The distance from the center of the shaft forms a third radius, the third radius is greater than the first radius and smaller than the second radius, the connecting piece is pivoted on the shaft, the connecting piece is provided with a tongue, and the connecting piece can Rotating between the pivoting state, the limit state and the overpressure state, when the connecting piece is in the pivoting state, the tongue piece abuts against the pivoting curved surface, and when the connecting piece is in the limit state, one end of the tongue piece abuts against the pivoting curved surface. Relying on the stop convex surface, when the connecting piece is in the overpressure state, the tongue piece abuts against the overpressure curved surface, and when the connecting piece is rotated from the limit state to the overpressure state, the tongue piece can produce elastic deformation , the pivot device will not be damaged even if it is pivoted excessively through the above structure.

The connector includes a main plate, the tongue has a first plate segment and a second plate segment, the first plate segment is connected to the main plate, and the second plate segment is angularly connected to the first plate segment away from the main plate. one side, and corresponding to the contact of the rod head, when the connecting piece is in the pivoting state, the second flat plate segment abuts against the pivoting curved surface, and when the connecting piece is in the extreme state, the second flat plate segment Abutting against the blocking convex surface, when the connecting piece is in the overpressure state, the second flat plate segment abuts against the overpressure curved surface.

The connecting piece is provided with a pivoting sleeve, the pivoting sleeve is connected to the main board and pivoted to the shaft, the tongue piece is connected to the main board, when the connecting piece is in the limit state, the tongue piece is opposite to One end of the main board abuts against the blocking convex surface.

The pivoting sleeve is adjacent to the tongue piece, the connecting member is provided with a separation groove along the radial direction of the shaft, and the separation groove is arranged between the pivoting sleeve and the tongue piece, so that the pivoting sleeve is Both are not in contact with the tongue.

The shaft has a round rod section and a chamfered section, the pivoting sleeve is pivoted on the round rod section, and the rod head is fixed on the chamfered section.

The tongue piece further has a third flat plate segment, the third flat plate segment is angularly connected to the side of the second flat plate segment away from the first flat plate segment, and the shaft is provided with a first limit along its radial outer periphery. A position surface and a second position limit surface, when the connecting member rotates in the pivot state, the first position limit surface or the second position limit surface can abut against the third flat plate segment in a surface contact manner.

The width of the third plate segment is smaller than the width of the second plate segment.

The main plate and the first plate segment form a main angle. When the connecting member is in the pivot state or the limit state, the main angle is substantially equal to 180 degrees. When the connecting member is in the overpressure state, the main angle is substantially equal to 180 degrees. The included angle is greater than 180 degrees.

Other objects, advantages and novelty of the present invention will become more apparent from the following detailed description and the associated drawings.

10: Pivot device

20: Axle

21: Shaft

211: Round rod segment

212: edge trim

2121: The first limit surface

2122: Second limit surface

22: club head

221: Pivot Surface

222: Overpressure Surface

223: Stop Convex

30: Connector

31: Motherboard

32: Pivot sleeve

33: Tongue

331: First plate segment

332: Second plate segment

333: Third plate segment

34: Separation trench

90: Display panel

91: Support frame

R0: maximum diameter

R1: first radius

R2: Second radius

R3: The third radius

θ: main angle

Figure 1: is a three-dimensional appearance view of a photo frame type display, showing the pivot device with overvoltage protection for pivoting the display panel and the support frame.

Figure 2: The three-dimensional external view of the pivot device with overvoltage protection of the present invention.

Figure 3: An exploded perspective view of the pivot device with overvoltage protection of the present invention.

Figure 4: The front plan view of the pivot device with overvoltage protection for the present invention.

FIG. 5 is a cross-sectional structural view of the club head when the connecting member of the pivot device with overvoltage protection of the present invention is in a pivoted state.

FIG. 6 is a cross-sectional structural view of the shaft when the connecting piece of the pivot device with overvoltage protection of the present invention is in a pivoted state.

FIG. 7 is a cross-sectional structural view of the club head when the connecting member of the pivot device with overvoltage protection of the present invention is in the limit state.

FIG. 8 is a cross-sectional structural view of the club head when the connecting member of the pivot device with overvoltage protection of the present invention is in an overvoltage state.

Regarding the techniques, means and effects used in this creation, a preferred embodiment is given and described in detail with the drawings as follows, which is for illustrative purposes only, and is not limited by this structure in the patent application.

As shown in FIG. 1 and FIG. 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 the display panel 90 and the support frame 91 , so that the display can be used at different operating angles, and some elements such as the casing are omitted in some drawings for convenience of description. FIG. 2 shows two pivot devices 10 of the present invention. Since they are symmetrically arranged and have the same actuation relationship, only one of them will be described. The pivot device 10 includes a shaft 20 and a connecting member 30, the details of which are as follows.

Please refer to FIG. 3 , FIG. 4 and FIG. 5 , the shaft 20 includes a shaft 21 and a head 22 , the shaft has a round rod section 211 and a chamfered section 212 , and the chamfered section 212 has a maximum diameter length R0; the rod head 22 is fixed on the chamfered section 212, in this embodiment, the rod head 22 is sleeved on the Shaft 21, but not limited thereto. The rod head 22 is provided with a pivoting curved surface 221 and an overpressure curved surface 222 along the radial outer periphery of the shaft 21 . The distance from the pivoting curved surface 221 to the center of the shaft 21 forms a first radius R1 , and the overpressure curved surface 221 forms a first radius R1 . The distance from the pressing curved surface 222 to the center of the shaft 21 forms a second radius R2, the first radius R1 is smaller than the second radius R2, and a stop convex surface 223 is provided between the pivoting curved surface 221 and the overpressure curved surface 222 , the distance from the blocking convex surface 223 to the center of the shaft 21 forms a third radius R3, and the third radius R3 is greater than the first radius R1 and smaller than the second radius R2. Among them, the maximum diameter R0 is less than twice R1 and less than twice R2.

Referring to FIG. 6 , FIG. 7 and FIG. 8 , the connecting member 30 is pivoted on the shaft 21 , and the connecting member 30 is provided with a main board 31 , a pivoting sleeve 32 and a tongue piece 33 . The pivoting sleeve 32 is provided with a tongue piece 33 . The tongue piece 33 is adjacently connected to the same side edge of the main board 31, and the pivoting sleeve 32 is pivoted on the round rod section 211 (ie, the axis of the circle) of the rod body 21, whereby the connecting member 30 can be pivoted. The tongue piece 33 has a first plate segment 331, a second plate segment 332 and a third plate segment 333, and the first plate segment 331 is connected to the main board 31. The second flat plate section 332 is angularly connected to the side of the first flat plate section 331 away from the main board 31, and corresponds to the contact of the head 22, the third flat plate section 333 is angularly connected to the second flat plate section 332 away from the main board 31. One side of the first plate segment 331 . When the connecting element 30 is in the pivoting state, the second flat plate segment 332 abuts against the pivoting curved surface 221 , and when the connecting element 30 is in the extreme state, the second flat plate segment 332 abuts against the stopper The convex surface 223, when the connecting member 30 is in the overpressure state, the second flat plate segment 332 abuts against the overpressure curved surface 222, and the tongue piece 33 can produce elastic deformation. Wherein, the width of the third flat plate section 333 is smaller than the width of the second flat plate section 332 to avoid interference between the club head 22 and the third flat plate section 333 .

Please refer to FIG. 5 again, the main plate 31 and the first plate segment 331 form a main angle θ. When the connecting member 30 is in the pivot state or the limit state, the main angle θ is substantially equal to 180 degrees. even When the connector 30 is in the overpressure state, the main angle θ will be greater than 180 degrees, eg, 195 degrees. The 15-degree angle difference is caused by the elastic deformation of the tongue 33 relative to the main board 31 . Further, the greater the difference between the second radius R2 and the first radius R1, the greater the angle difference of the main angle θ, the smaller the difference between the second radius R2 and the first radius R1, the larger the main angle θ The smaller the angle difference is, for example, it can be a change of 5 to 30 degrees.

It should be added that when the connecting piece 30 is turned to the limit state, since the stop convex surface 223 has a stop point effect, the user will have a hand feeling to avoid continuing to rotate the connecting piece 30, but even if the user accidentally turns excessively , when the connecting piece 30 is transferred to the limit state, the tongue piece 33 can produce elastic deformation (change of the main angle θ) to avoid damage.

In addition, the pivoting sleeve 32 is adjacent to the tongue 33 , and the connecting member 30 is provided with a separation groove 34 along the radial direction of the shaft 21 , that is, between the pivoting sleeve 32 and the tongue 33 . Therefore, the tongue piece 33 can easily deform elastically relative to the main board 31 .

In this embodiment, the chamfered section 212 of the shaft 21 is double chamfered, that is, a first limiting surface 2121 and a second limiting surface 2122 are provided along its radial outer periphery. 30. When rotating in the pivoted state, the first limiting surface 2121 or the second limiting surface 2122 can abut against the third flat plate segment 333 of the tongue piece 33 in a surface contact manner. The above design can strengthen the user feel during operation.

To sum up, the present invention has a pivot device with overvoltage protection, wherein the pivot device includes a shaft rod and a connecting piece, the shaft rod includes a rod body and a rod head, and the rod head cannot rotate relatively. Sleeve to the shaft, the head is provided with a pivoting curved surface and an overpressure curved surface along the radial outer periphery of the shaft, the distance from the pivoting curved surface to the center of the shaft forms a first radius, the overpressure The distance from the pressing surface to the center of the shaft forms a second radius, the first radius is smaller than the second radius, a stop convex surface is arranged between the pivoting curved surface and the overpressure curved surface, and the stop convex surface reaches the rod body center distance A third radius is formed, the third radius is larger than the first radius and smaller than the second radius, the connecting piece is pivoted on the shaft, the connecting piece is provided with a tongue, and the connecting piece can be pivoted , Rotate between the limit state and the overpressure state, when the connector is in the pivot state, the tongue abuts against the pivoting curved surface, and when the connector is in the limit state, one end of the tongue abuts against the stop A blocking convex surface, when the connecting piece is in the overpressure state, the tongue piece abuts against the overpressure curved surface, and when the connecting piece is rotated from the limit state to the overpressure state, the tongue piece can produce elastic deformation, and the pivot Through the above structure, the device will not be damaged even if it is pivoted excessively.

However, the above are only the preferred embodiments of this creation, and should not be used to limit the scope of implementation of this creation. Therefore, any changes in numerical values or replacement of equivalent components, or equivalents made in accordance with the scope of the patent application for this creation Changes and modifications should still fall within the scope of this patent.

10: Pivot device

20: Axle

21: Shaft

22: club head

30: Connector

31: Motherboard

32:Pivot sleeve

33: Tongue

Claims (9)

A pivot device with overpressure protection, comprising: a shaft, including a shaft and a head, the head is provided with a pivot curved surface and an overpressure curved surface along the radial outer periphery of the shaft, The distance from the pivoting curved surface to the center of the shaft forms a first radius, the distance from the overpressure curved surface to the center of the shaft forms a second radius, and the first radius is smaller than the second radius. A stop convex surface is arranged between the overpressure curved surfaces, and the distance from the stop convex surface to the center of the shaft forms a third radius, and the third radius is larger than the first radius and smaller than the second radius; a connecting piece, pivoting It is arranged on the shaft and can be rotated between the pivoting state and the overpressure state, and includes a tongue piece, when the connecting piece is in the pivoting state, the tongue piece abuts against the pivoting curved surface, when the When the connecting piece is in the overpressure state, the tongue piece abuts against the overpressure curved surface, and the tongue piece can be elastically deformed. The pivot device with overpressure protection as claimed in claim 1, wherein the stop convex surface is connected between the pivoting curved surface and the overpressure curved surface, the connecting piece can be rotated to a limit state, and the tongue piece abut against the stop convex surface. The pivot device with overvoltage protection as claimed in claim 2, wherein the connecting member comprises a main board, the tongue piece has a first flat plate segment and a second flat plate segment, and the first flat plate segment is connected to the main board , the second plate segment is angularly connected to the side of the first plate segment away from the main plate, and corresponds to the contact of the rod head, when the connecting piece is in the pivoting state, the second plate segment abuts against the pivot When the connecting piece is in the limit state, the second flat plate segment abuts against the stop convex surface, and when the connecting piece is in the overpressure state, the second flat plate segment abuts against the overpressure curved surface. The pivot device with overvoltage protection as claimed in claim 3, wherein the connecting member further comprises a pivoting sleeve, the pivoting sleeve is connected to the main board and pivoted to the shaft, and the tongue is connected to on the main board, and the tongue can be elastically deformed relative to the main board. The pivot device with overpressure protection as claimed in claim 4, wherein the pivot sleeve is adjacent to the tongue piece, the connecting member is provided with a separation groove along the radial direction of the shaft, and the separation groove is arranged at between the pivoting sleeve and the tongue. The pivot device with overvoltage protection as claimed in claim 5, wherein the shaft has a round rod section and a chamfered section, the pivot sleeve is pivoted on the round rod section, and the rod head is fixed on the The trimmed segment. The pivot device with overpressure protection as claimed in claim 6, wherein the tongue piece further has a third plate segment, and the third plate segment is angularly connected to a portion of the second plate segment remote from the first plate segment. side, the shaft is provided with a first limit surface and a second limit surface along its radial outer periphery, when the connecting piece rotates in the pivot state, the first limit surface or the second limit surface The plane can abut against the third plate segment in a surface contact manner. The pivot device with overvoltage protection as claimed in claim 7, wherein the width of the third plate segment is smaller than the width of the second plate segment. The pivot device with overvoltage protection as claimed in claim 7, wherein the main plate and the first plate segment form a main angle, and when the connector is in the pivot state or the limit state, the main angle Substantially equal to 180 degrees, when the connector is in the overvoltage state, the main included angle is greater than 180 degrees.

Images