CN210600774U

CN210600774U - Multi-angle rotating limiting structure

Info

Publication number: CN210600774U
Application number: CN201921350052.6U
Authority: CN
Inventors: 罗成一
Original assignee: SHANGHAI THINKWISE INDUSTRIAL CO LTD
Current assignee: SHANGHAI THINKWISE INDUSTRIAL CO LTD
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-05-22
Anticipated expiration: 2029-08-19

Abstract

The utility model relates to a multi-angle rotating limit structure, including mounting and rotating member, the rotating member is fixed a position on the mounting through the pivot, wherein: the fixed piece and the rotating piece move adjacent surfaces, one surface is provided with a caulking groove with orientation constraint, a gear piece with a central round hole is placed in the caulking groove, and the gear piece is provided with a convex pin and can be rotatably placed in different orientations of the caulking groove and constrained; the other surface is provided with more than two arc grooves corresponding to the rotating track of the convex pin; the rotating member is assembled with the fixed member, and the orientation of the protruding pin is selected and inserted into one of the two or more arc grooves, allowing the rotating member to rotate within the designed angle of the arc groove. The utility model has the characteristics of angle restraint and position are adjusted doubly, with the help of gear piece and circular arc groove cooperation, both can realize the spacing of multi-angle, and the gear piece is in different positions, can adjust the angular rotation of rotating member in specific position again, satisfies the needs of more polybasic angle modulation.

Description

Multi-angle rotating limiting structure

The technical field is as follows:

the utility model belongs to machinery limit structure field, in particular to multi-angle rotating limit structure especially is suitable for and uses on the display support, prevents excessive swing.

Background art:

the existing positioning structure with the help of the convex pin and the arc groove is a common scheme in the mechanical field, but the existing positioning structure can only realize the restriction of one angle range. For example, patent application No. 201620900414.4 discloses a swivel stand, which comprises a base, a support rod, an adapter, a swivel head and a first screw; the lower end of the supporting rod is locked on the base, and the upper end of the supporting rod is fixed with an adapter; the first screw penetrates through a through hole of a center shaft of the rotating head, the rear end part of the first screw is locked on the adapter, and a rotating limiting part is arranged between the rotating head and the adapter; the rotary limiting part comprises an arc-shaped slideway on the rotary head and a second screw locked on the adapter body, and the head of the second screw is in sliding fit with the arc-shaped slideway to form rotary limiting. That is, one side of the screw is restricted in the arc angle range of the arc slideway to rotate through the matching of the arc slideway on the rotary contact end surface and the screw. The restriction of only satisfying an angle scope, this is also a rotation limit scheme that current machinery field is common.

The invention content is as follows:

the utility model aims at designing an utilize the gear piece of setting on mounting and rotating member looks proximal surface, with the rotating member on two or two above circular arc groove cooperations, the multi-angle rotation limit structure of formation.

The utility model discloses technical scheme realizes like this: the utility model provides a multi-angle rotating limit structure, includes mounting and rotating member, and the rotating member passes through the pivot location on the mounting, its characterized in that: the fixed part and the rotating part are adjacent in movement, a caulking groove with orientation constraint is arranged on one surface of the fixed part and the rotating part by taking the rotating shaft as the center, a gear piece with a central round hole is placed in the caulking groove, and a convex pin is arranged on the gear piece and can be rotatably selected to be placed in different orientations of the caulking groove and constrained so as to adjust the orientation of the convex pin; the other surface is provided with two or more arc grooves corresponding to the rotation track of the convex pin; the rotating member is assembled with the fixed member, and the orientation of the protruding pin is selected and inserted into one of the two or more arc grooves, allowing the rotating member to rotate within the design angle of the arc groove.

The caulking groove is a gear-like multi-tooth part bearing concave, 4-12 tooth parts are uniformly distributed on the circumference, the tooth width of each tooth part is equivalent to that of the convex pin, and at least one tooth part is provided with a sunk groove capable of accommodating the convex pin; at least one convex tooth matched with the tooth part of the caulking groove is distributed on the circumference of the gear piece, and the convex pin is convexly arranged on the surface of the convex tooth.

Three convex teeth are distributed on the circumference of the gear piece.

A gasket is further arranged between the gear piece and the rotating piece in a cushioning mode, a through hole is formed in the position, corresponding to the convex pin, of the gasket, and the convex pin can penetrate through the gasket in an assembling mode.

The rotating shaft is fixed on the rotating piece, and a positioning ring groove is formed in the surface of the rotating shaft; the fixing piece is provided with a shaft hole for the rotating shaft to pass through, and threaded holes are radially formed in the position, corresponding to the positioning ring grooves, of the shaft hole, and the rotating shaft is restrained by means of a positioning jackscrew.

The utility model has the characteristics of angle restraint and position are adjusted doubly, with the help of gear piece and the cooperation of two above circular arc grooves, both can realize the spacing of multi-angle, and utilize the gear piece to be in different positions, can adjust the angular rotation of rotating member in specific position again, satisfy the needs of more polybasic angle modulation.

Description of the drawings:

the present invention will be further explained with reference to the following specific drawings:

FIG. 1 is a schematic view of a rotating cantilever

FIG. 2 is a schematic cross-sectional view of a rotating cantilever

FIG. 3 is an exploded view of the rotary cantilever

Wherein

1-fixed part 11-shaft hole 12-threaded hole 13-caulking groove

131-tooth part 132-sink groove 2-rotating part 21-arc groove

3-rotating shaft 31-positioning ring groove 4-jackscrew 5-gear piece

51-center circular hole 52-convex tooth 53-convex pin 6-gasket

61-through hole

The specific implementation mode is as follows:

with reference to fig. 1, 2, and 3, a display cantilever will be described as an example. Multi-angle rotating limit structure includes: the device comprises a fixed part 1, a rotating part 2 and a rotating shaft 3; the rotating member 2 is positioned on the fixed member 1 by a rotating shaft 3, and the two can rotate relatively. More specifically, the rotating shaft 3 is fixed on the rotating member 2 or the rotating member and the rotating member are connected, and a positioning ring groove 31 is formed on the surface of the rotating shaft 3; the fixing piece 1 is provided with a shaft hole 11 for the rotating shaft to pass through, a threaded hole 12 is radially formed in the position, corresponding to the positioning ring groove 31, of the shaft hole, the rotating shaft 3 is restrained by means of a positioning jackscrew 4, and the rotating shaft 3 and the rotating piece 2 are prevented from being accidentally separated. This is also the conventional rotational positioning manner of the fixed member 1 and the rotating member 2, if there is no additional angle constraint, that is, the rotating member 2 can rotate 360 degrees, and if the rotation angle is too large, the rotating member 2 as the display cantilever is not useful for practical use, and can rotate and easily cause damage to the article, but the angle actually required to rotate and observe is limited, so how to design the rotation limit for the rotating member 2 to be engaged becomes necessary. The following is a specific structure:

the fixed part 1 and the rotating part 2 are adjacent to each other in motion, a slot 13 with orientation constraint is arranged on one surface of the fixed part by taking the rotating shaft 3 as a center, more specifically, the slot 13 is a gear-like multi-tooth bearing concave, 4-12 teeth 131 are evenly distributed on the circumference, a gear piece 5 is placed in the slot 13, a central round hole 51 for the rotating shaft to pass through is arranged on the gear piece 5, three convex teeth 52 matched with the slot teeth 131 are arranged on the circumference, and a convex pin 53 is arranged on the surface of one convex tooth 52. The gear piece 5 can be formed by punching a steel plate, and the convex pin 53 is directly formed by bending the end part of the convex tooth 52 at right angle; of course, the casting may be selected to ensure sufficient rigidity.

The gear piece 5 can be rotated to select different orientations to rest in the slot 13 and is restrained, namely, the rotation restraint on different orientations is formed according to the fact that the convex teeth 52 on the gear piece fall into different tooth parts 131 in the slot, and therefore the orientation of the convex pin 53 is adjusted.

Two or more arc grooves 21 are arranged on one surface of the rotating piece 2 corresponding to the rotating track of the convex pin 53; the rotating member 2 is assembled with the fixed member 1, and the orientation of the protruding pin 53 is selected and inserted into one of the two or more circular arc grooves 21, allowing the rotating member to rotate within the designed angle of the circular arc groove 21. If two arc grooves 21 are provided, one is a central angle of 180 degrees, and the other is a central angle of 90 degrees, the convex pin 53 is inserted, so that the rotating part 2 can be restrained to rotate by 180 degrees or 90 degrees; or three and four may be provided, such as in the following combinations of central angles, one, 180 degrees, 90 degrees and 30 degrees; two, 180 degrees, 90 degrees and 60 degrees; and so on. Although more than two circular arc grooves 21 are on the same circumference and have different orientations, the protruding pins 53 matching with the circular arc grooves can be changed in orientation, so as to satisfy the restriction that the rotating member 2 selects different rotating angles in a specific orientation.

In addition, the tooth widths of the teeth 131 correspond to the width of the stud 53, and at least one of the teeth 131 is formed with a counter sink 132 capable of receiving the stud. When the rotation member 2 is not required to be limited in angle, the gear piece 5 can be turned upside down, the convex pin 53 is inserted into the sunken groove 132, the gear piece 5 placed in the embedded groove 13 can keep the adjacent rotating surfaces flush, the rotation member 2 is not limited, the gear piece 5 can be stored in the embedded groove 13, and the gear piece can be turned over for use when waiting for needs.

In order to reduce abrasion during rotation, a gasket 6 is further arranged between the gear piece 5 and the rotating piece 2 in a cushioning mode, a through hole 61 is formed in the position, corresponding to the convex pin 53, of the gasket 6, and the convex pin 53 can penetrate through the gasket 6 when the gasket is assembled in place.

The above fixed member 1 and the rotating member 2 are defined only for convenience of description, and the structures of the two are interchangeable, or the rotating shaft 3 still remains fixed with the rotating member 2, while the other matching structures are interchanged, that is, the inserting groove 13 is arranged on one side of the rotating member, and the arc groove 21 is arranged on one side of the fixed member 1. However, it is preferable that the stopper 5 is located below the lower member in use, and the stopper 5 and the spacer 6 are held in contact with the groove 13 of the lower member by gravity during operation such as adjustment of the orientation.

In practical application, the number of the tooth parts 131 in the caulking groove can be considered according to different products and applications, for example, 12 teeth are arranged, that is, the azimuth angle corresponding to each tooth is 30 degrees, and the 30-degree orientation of the convex pin can be changed by rotating one tooth, so that the centering condition of the rotating member 2 is ensured, and the selection and the switching of different rotating angles are realized.

Claims

1. The utility model provides a multi-angle rotating limit structure, includes mounting and rotating member, and the rotating member passes through the pivot location on the mounting, its characterized in that: the fixed part and the rotating part are adjacent in movement, a caulking groove with orientation constraint is arranged on one surface of the fixed part and the rotating part by taking the rotating shaft as the center, a gear piece with a central round hole is placed in the caulking groove, and a convex pin is arranged on the gear piece and can be rotatably selected to be placed in different orientations of the caulking groove and constrained so as to adjust the orientation of the convex pin; the other surface is provided with two or more arc grooves corresponding to the rotation track of the convex pin; the rotating member is assembled with the fixed member, and the orientation of the protruding pin is selected and inserted into one of the two or more arc grooves, allowing the rotating member to rotate within the design angle of the arc groove.

2. The multi-angle rotation limiting structure of claim 1, wherein: the caulking groove is a gear-like multi-tooth part bearing concave, 4-12 tooth parts are uniformly distributed on the circumference, the tooth width of each tooth part is equivalent to that of the convex pin, and at least one tooth part is provided with a sunk groove capable of accommodating the convex pin; at least one convex tooth matched with the tooth part of the caulking groove is distributed on the circumference of the gear piece, and the convex pin is convexly arranged on the surface of the convex tooth.

3. The multi-angle rotation limiting structure of claim 2, wherein: three convex teeth are distributed on the circumference of the gear piece.

4. The multi-angle rotation limiting structure of claim 1 or 2, wherein: a gasket is further arranged between the gear piece and the rotating piece in a cushioning mode, a through hole is formed in the position, corresponding to the convex pin, of the gasket, and the convex pin can penetrate through the gasket in an assembling mode.

5. The multi-angle rotation limiting structure of claim 1, wherein: the rotating shaft is fixed on the rotating piece, and a positioning ring groove is formed on the surface of the rotating shaft; the fixing piece is provided with a shaft hole for the rotating shaft to pass through, and threaded holes are radially formed in the position, corresponding to the positioning ring grooves, of the shaft hole, and the rotating shaft is restrained by means of a positioning jackscrew.