Mini rotary positioning mechanism

Abstract

The utility model relates to the field of positioning mechanisms, in particular to a mini-type rotary positioning mechanism which comprises a base, a cylindrical connecting portion is arranged at the top of the base, a rotating piece is rotatably connected to the top of the base, a rotating portion matched with the cylindrical connecting portion in a rotating mode is arranged at the end of the rotating piece, and the cylindrical connecting portion is connected with the rotating piece in a rotating mode. The rotating part is arranged on the outer side of the cylindrical connecting part in a sleeving mode, V-shaped grooves are symmetrically formed in the cylindrical connecting part, V-shaped elastic pieces are installed in the V-shaped grooves, the cylindrical connecting part is provided with four limiting parts through the V-shaped grooves, and the ends of the limiting parts make contact with the outer walls of the V-shaped elastic pieces. According to the mini-type rotary positioning mechanism, the two V-shaped elastic pieces are placed on the base, then the rotating piece and the decorating piece are placed on the V-shaped elastic pieces respectively, the rotating piece and the decorating piece are locked together through screws to form a module, and modularization effectively improves the installation efficiency, effectively reduces the manufacturing cost and reduces the use size requirement.

Description

Technical Field

[0001] The utility model relates to the field of positioning mechanisms, in particular to a miniature rotary positioning mechanism. Background Art

[0002] At present, the rotary positioning mechanism generally uses glass beads, springs, etc. for limiting. The coordination of multiple parts makes the installation complicated, the cost is high, and the size is large. In order to improve assembly efficiency and reduce production costs, the size used is controlled.

[0003] Therefore, it is necessary to provide a miniature rotary positioning mechanism to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a miniature rotary positioning mechanism.

[0005] The utility model provides a miniature rotary positioning mechanism, comprising a base, a cylindrical connecting portion is provided on the top of the base, a rotating member is rotatably connected to the top of the base, a rotating portion is provided at the end of the rotating member for rotationally cooperating with the cylindrical connecting portion, and the rotating portion is sleeved on the outside of the cylindrical connecting portion, and V-shaped grooves are symmetrically provided on the cylindrical connecting portion, a V-shaped spring sheet is installed in the V-shaped groove, and the V-shaped groove forms four limiting portions on the cylindrical connecting portion, the end of the limiting portion contacts the outer wall of the V-shaped spring sheet, and the inner wall of the rotating portion is provided with a plurality of positioning grooves cooperating with the bending parts of the V-shaped spring sheet.

[0006] An inclined portion is provided at the end of the V-shaped spring piece, and the V-shaped spring piece is clamped with the V-shaped groove through the inclined portion.

[0007] The bending part of the V-shaped spring piece is arc-shaped.

[0008] A copper nut is embedded and fixed inside the cylindrical connecting part, and a decorative piece is provided on the top of the rotating part to prevent the rotating part from being separated from the cylindrical connecting part. The decorative piece is connected to the copper nut by a screw.

[0009] A mounting groove is arranged on the top of the decorative element, and a cover is installed in the mounting groove.

[0010] Compared with the related art, the utility model has the following beneficial effects:

[0011] Two V-shaped springs are placed on the base, and then the rotating parts and decorative parts are placed respectively, and locked together by screws to form a module. Modularization effectively improves installation efficiency, effectively reduces manufacturing costs, and reduces usage size requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an exploded schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the base of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the rotating part of the utility model;

[0015] Figure 4 It is a schematic diagram of the rotating member and the cylindrical connecting part after being matched with each other in the utility model.

[0016] Numbers in the figure: 1. Positioning mechanism; 2. Base; 3. Cylindrical connecting part; 4. Rotating part; 5. Rotating part; 6. V-shaped groove; 7. V-shaped spring; 8. Limiting part; 9. Positioning groove; 10. Inclined part; 11. Arc; 12. Copper nut; 13. Decorative part; 14. Screw; 15. Mounting groove; 16. Cover. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0018] Please refer to Figures 1 to 4 A miniature rotary positioning mechanism 1 includes a base 2, a cylindrical connecting portion 3 is provided on the top of the base 2, a rotating member 4 is rotatably connected to the top of the base 2, a rotating portion 5 which is rotatably matched with the cylindrical connecting portion 3 is provided at the end of the rotating member 4, and the rotating portion 5 is sleeved on the outside of the cylindrical connecting portion 3, the cylindrical connecting portion 3 on the base 2 provides a space for rotation and a basis for positioning for the rotating portion 5 of the rotating member 4, the cylindrical connecting portion 3 is symmetrically provided with a V-shaped groove 6, a V-shaped spring piece 7 is installed in the V-shaped groove 6, and the design of the V-shaped spring piece 7 enables it to deform when subjected to external force and return to its original state after the external force disappears. The V-shaped groove 6 forms four limiting portions 8 on the cylindrical connecting portion 3, the end of the limiting portion 8 contacts the outer wall of the V-shaped spring piece 7, and the inner wall of the rotating portion 5 is provided with a plurality of positioning grooves 9 which match the bending part of the V-shaped spring piece 7. When the rotating part 5 rotates to a certain specific position, the bending part of the V-shaped spring piece 7 will be caught by the positioning groove 9, thereby realizing the positioning of the rotating part.

[0019] The end of the V-shaped spring piece 7 is provided with an inclined portion 10, and the V-shaped spring piece 7 is clamped with the V-shaped groove 6 through the inclined portion 10, which not only facilitates the installation of the V-shaped spring piece 7, but also enables it to deform more easily when it contacts the rotating part 5 to adapt to the positioning grooves 9 in different positions.

[0020] The bending part of the V-shaped spring piece 7 is in an arc shape 11 , which reduces the wear between the V-shaped spring piece 7 and the rotating part 5 and prolongs the service life of the rotating part 5 .

[0021] A copper nut 12 is embedded and fixed inside the cylindrical connecting part 3, and a decorative piece 13 is provided on the top of the rotating part 5 to prevent the rotating part 5 from detaching from the cylindrical connecting part 3. The decorative piece 13 is connected to the copper nut 12 by a screw 14, and the rotating part 4 is limited by the decorative piece 13.

[0022] The top of the decorative element 13 is provided with a mounting groove 15, and a cover 16 is installed in the mounting groove 15. The cover 16 not only increases the aesthetics of the mechanism, but also effectively prevents dust and debris from entering the interior of the mechanism, thereby protecting the internal parts thereof.

[0023] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A miniature rotary positioning mechanism, characterized in that: The invention comprises a base (2), wherein a cylindrical connecting portion (3) is provided at the top of the base (2), a rotating member (4) is rotatably connected to the top of the base (2), a rotating portion (5) rotatably matched with the cylindrical connecting portion (3) is provided at the end of the rotating member (4), and the rotating portion (5) is sleeved on the outside of the cylindrical connecting portion (3), and a V-shaped groove (6) is symmetrically provided on the cylindrical connecting portion (3), a V-shaped spring sheet (7) is installed in the V-shaped groove (6), and the V-shaped groove (6) forms four limiting portions (8) on the cylindrical connecting portion (3), and the end of the limiting portion (8) contacts the outer wall of the V-shaped spring sheet (7), and the inner wall of the rotating portion (5) is provided with a plurality of positioning grooves (9) matched with the bending part of the V-shaped spring sheet (7).

2. A miniature rotary positioning mechanism according to claim 1, characterized in that: An inclined portion (10) is provided at the end of the V-shaped spring piece (7), and the V-shaped spring piece (7) is clamped with the V-shaped groove (6) via the inclined portion (10).

3. A miniature rotary positioning mechanism according to claim 1, characterized in that: The bending part of the V-shaped spring piece (7) is in an arc shape (11).

4. A miniature rotary positioning mechanism according to claim 1, characterized in that: A copper nut (12) is embedded and fixed inside the cylindrical connecting part (3), and a decorative piece (13) is provided on the top of the rotating part (5) to prevent the rotating part (5) from being separated from the cylindrical connecting part (3), and the decorative piece (13) is connected to the copper nut (12) via a screw (14).

5. A miniature rotary positioning mechanism according to claim 4, characterized in that: A mounting groove (15) is provided on the top of the decorative element (13), and a cover (16) is installed in the mounting groove (15).

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