CN214351971U - Rotary positioning mechanism - Google Patents
Rotary positioning mechanism Download PDFInfo
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- CN214351971U CN214351971U CN202120193301.6U CN202120193301U CN214351971U CN 214351971 U CN214351971 U CN 214351971U CN 202120193301 U CN202120193301 U CN 202120193301U CN 214351971 U CN214351971 U CN 214351971U
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- positioning
- rotating shaft
- rotating body
- positioning mechanism
- washer
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Abstract
The utility model provides a rotary positioning mechanism, rotary positioning mechanism includes a rotator, outer support, first setting element, second setting element and pivot. The first positioning piece is fixedly connected to the rotating body, and a first tooth part is arranged on one side, away from the rotating body, of the first positioning piece; the second positioning piece is fixedly connected to the outer bracket, and a second tooth part is arranged on one side, far away from the outer bracket, of the second positioning piece; the first end of pivot passes in proper order outer support, second setting element and first setting element with the rotator is connected, and the first end of pivot extends to the rotator in, the second end of pivot is equipped with the flange of radial extension and this flange is located one side that the second setting element was kept away from to the outer support. The utility model discloses a tooth portion meshing on first setting element and the second setting element realizes the location of rotator and outer support, can make the rotator firmly fix and be unlikely to not hard up on the outer support, has improved location effect and anti-vibration performance, has increased the reliability of product.
Description
Technical Field
The utility model belongs to the technical field of rotational positioning, a rotational positioning mechanism is related to.
Background
The existing rotary positioning mechanism generally adopts a method of screwing a screw to enable two or more rotating parts to be mutually pressed to increase friction force so as to fix the rotating position between the parts. However, in the positioning method, when the components are subjected to a large torque or vibrate, the components connected by the screws easily slip due to insufficient pressing force or friction coefficient, so that the components which have been positioned originally rotate relative to each other to deviate from the original rotation positioning position, and a user needs to readjust the positioning position of the components, thereby affecting the use feeling.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art not enough, provide a rotary positioning mechanism, the location effect that aims at solving current rotary positioning mechanism is not good, the not good problem of performance of anti-vibration.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a rotational positioning mechanism comprising:
a rotating body;
an outer support;
the first positioning piece is fixedly connected to the rotating body, and a first tooth part is arranged on one side, far away from the rotating body;
the second positioning piece is fixedly connected to the outer bracket, and a second tooth part is arranged on one side, far away from the outer bracket, of the second positioning piece, wherein the second tooth part can be meshed with or separated from the first tooth part;
the first end part of the rotating shaft sequentially penetrates through the outer support, the second positioning piece and the first positioning piece to extend into the rotating body and is connected with the rotating body, and the second end part of the rotating shaft is provided with a flange extending in the radial direction and is positioned on one side of the outer support, which is far away from the second positioning piece;
the rotating body is connected with the outer bracket through the rotating shaft, and when the second tooth part is separated from the first tooth part, the rotating body can rotate around the rotating shaft relative to the outer bracket.
Preferably, a first opening is formed in a central axis of the first positioning element, through which the rotating shaft passes, and the first teeth are circumferentially distributed around an outer periphery of the first opening.
Preferably, a second opening through which the rotating shaft passes is formed in a central axis of the second positioning element, and the second tooth portions are circumferentially distributed around the outer periphery of the second opening.
Preferably, the first positioning member is fixed to the rotating body by a first connecting member, and the first connecting member is a countersunk screw.
Preferably, the second positioning element is fixed on the outer bracket through a second connector, and the second connector is a cup head screw.
Furthermore, the nut of the second connecting piece is positioned on one side of the outer bracket, which is far away from the second positioning piece.
Preferably, the rotating shaft is a screw, the screw rod of the rotating shaft is in threaded connection with the rotating body, and the nut of the rotating shaft is located on one side, away from the second positioning piece, of the outer support.
Preferably, the device comprises an elastic washer sleeved on the rotating shaft and abutted between a flange of the rotating shaft and the outer support.
Furthermore, the elastic washer includes first packing ring and second packing ring, first packing ring butt is in the one side that the second setting element was kept away from to the outer support, the second packing ring stack be in first packing ring keep away from one side of outer support and with the flange butt of pivot, the second packing ring is spring washer.
Preferably, the first positioning piece is provided with scales distributed circumferentially, and the second positioning piece is provided with an indication mark pointing to the scales.
The utility model has the advantages that: the utility model provides a rotary positioning mechanism, the utility model discloses a tooth portion meshing on first setting element and the second setting element realizes the location of rotator and outer support, and the rotator is firmly fixed and is unlikely to not hard up on the outer support in time, has improved the location effect and the anti-shock dynamic performance of rotator and support, has improved rotator location effect, has increased the reliability of product.
Drawings
Fig. 1 is a structural diagram of a rotary positioning mechanism according to an embodiment of the present invention;
fig. 2 is an exploded view of a rotary positioning mechanism according to an embodiment of the present invention;
fig. 3 is a structural diagram of a second positioning element according to an embodiment of the present invention;
fig. 4 is a structural diagram of the first positioning member according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of a rotational positioning mechanism according to an embodiment of the present invention;
fig. 6 is an enlarged view at a in fig. 5.
The labels in the figure are: 100. a rotating shaft; 101. a flange; 200. a metal gasket; 201. a first gasket; 202. a second gasket; 300. a second connecting member; 400. an outer support; 500. a second positioning member; 501. a second opening; 502. an indication mark; 503. a second tooth portion; 600. a first connecting member; 700. a first positioning member; 701. a first opening; 702. calibration; 703. a first tooth portion; 800. a rotating body; 801. a cavity.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1 to 6, an embodiment of a rotational positioning mechanism according to the present invention is shown.
As shown in fig. 1 to 2 and 5 to 6, the rotary positioning mechanism includes a rotary body 800, an outer bracket 400, a first positioning member 700, a second positioning member 500, and a rotary shaft 100. The first positioning member 700 is fixedly connected to the rotating body 800, the first positioning member 700 can rotate along with the rotation of the rotating body 800, and a first tooth part 703 is arranged on one side of the first positioning member 700 away from the rotating body 800; the second positioning member 500 is fixedly connected to the outer bracket 400, and a second tooth 503 is arranged on one side away from the outer bracket 400; the first end of the rotating shaft 100 sequentially passes through the outer bracket 400, the second positioning element 500 and the first positioning element 700 and is connected with the rotating body 800, the first end of the rotating shaft 100 extends into the rotating body 800, the second end of the rotating shaft 100 is provided with a flange 101 extending radially, and the flange 101 is located on one side of the outer bracket 400 far away from the second positioning element 500.
Wherein, the rotating shaft 100 is connected with the rotating body 800 after passing through the outer bracket 400, the second positioning member 500 and the first positioning member 700, the radially extending flange 101 on the rotating shaft 100 abuts against the outer bracket 400, so that the outer bracket 400 is connected with the rotating body 800 through the rotating shaft 100, and the first tooth part 703 and the second tooth part 503 are correspondingly arranged: when the control shaft 100 moves away from the outer bracket 400, a space is formed between the first tooth 703 on the first positioning member 700 and the second tooth 503 on the second positioning member 500, and the first tooth 703 can be disengaged from the second tooth 503; when the control shaft 100 moves towards the outer bracket 400, the second positioning member 500 presses towards the first positioning member 700, and the concave-convex teeth on the first tooth portion 703 and the second tooth portion 503 can be engaged with each other. When the first tooth portion 703 and the second tooth portion 503 are disengaged, the first positioning member 700 and the second positioning member 500 are separated from each other, and at this time, the rotating body 800 can rotate around the rotating shaft 100 relative to the outer bracket 400, and after the rotating body rotates to a predetermined angle, the rotating shaft 100 is controlled to move towards the outer bracket 400, so that the second positioning member 500 is pressed towards the first positioning member 700, and the first tooth portion 703 and the second tooth portion 503 are engaged, thereby positioning the rotating body 800 and the outer bracket 400.
The utility model discloses a tooth meshing on first setting element 700 and the second setting element 500 realizes the location of rotator 800 and outer support 400, has improved the location effect and the anti-vibration performance of rotator 800 with the support, and first setting element 700 and second location remain the static state of relative fixation throughout after first tooth portion 703 and the meshing of second tooth portion 503 to make rotator 800 and outer support 400 also fixed, can not rotate relatively. The mutual engagement of the teeth can firmly fix the rotating body 800 on the outer bracket 400 without loosening, thereby improving the positioning effect of the rotating body 800 and increasing the reliability of the product.
Preferably, as shown in fig. 4, in the present embodiment, a first opening 701 is formed on a central axis of the first positioning member 700 for the rotating shaft 100 to pass through, and the first teeth 703 are circumferentially distributed around an outer periphery of the first opening 701. The first teeth 703 are circumferentially distributed so that the rotating body 800 can be rotated and positioned at any angle. Specifically, the first positioning member 700 has a disc-shaped structure.
Preferably, as shown in fig. 3, a second opening 501 for the rotating shaft 100 to pass through is formed on a central axis of the second positioning element 500, and the second tooth portions 503 are circumferentially distributed around an outer periphery of the second opening 501. In this embodiment, the first tooth portion 703 and the second tooth portion 503 are both of a concave-convex tooth structure, so that the first tooth portion 703 and the second tooth portion 503 are fitted without a gap, thereby improving the fastening property of fixation. In this embodiment, the first tooth portion 703 and the second tooth portion 503 are disposed in a star lake correspondence and are both circumferentially distributed, the rotating body 800 can rotate 360 degrees around the rotating shaft 100 and realize fixed positioning at any angle, and the circumferentially distributed concave-convex teeth are adopted, so that the rotational positioning of the rotating body 800 is not limited, and the meshing area of the first tooth portion 703 and the second tooth portion 503 is increased, so that the product is firmer. Specifically, the second positioning member 500 has a disc-shaped structure,
preferably, as shown in fig. 1 to 6, the first positioning member 700 is fixed to the rotating body 800 by a first connecting member 600, and the first connecting member 600 is a countersunk screw. Specifically, the nut of the countersunk head screw is located on the first positioning member 700, and the screw passes through the first positioning member 700 and is fixed to the rotating body 800 by a thread. Specifically, the rotating body 800 is provided with a cavity 801, and a screw of the countersunk head screw penetrates through the cavity wall of the rotating body 800 and is in threaded connection with the cavity wall of the rotating body 800. In this embodiment, the number of the countersunk screws is four, and the four countersunk screws are circumferentially distributed on the periphery of the first opening 701. The utility model discloses a countersunk screw fixes first locating part 700 and rotator 800, can avoid the screw head protrusion to influence the relative outer support 400 rotation of rotator 800 on the side of first locating part 700.
Preferably, as shown in fig. 2 and 5 to 6, the second positioning element 500 is fixed on the outer bracket 400 by a second connector 300, and the second connector 300 is a cuphead screw. The screw of the second connector 300 passes through the outer bracket 400 and is connected with the second positioning element 500, specifically, the nut of the second connector 300 is located at one side of the outer bracket 400 far away from the second positioning element 500, that is, one end of the second connector 300 is located in the second positioning element 500, and the bottom surface of the nut at the other end is abutted against the side surface of the outer bracket 400, so as to prevent the nut from protruding out of the second positioning element 500 to influence the rotation of the rotating body 800 relative to the outer bracket 400. Specifically, the outer bracket 400 is fixedly connected to the second positioning element 500 through four cup screws.
In other embodiments, the first positioning member 700 may be fixed to the outer side of the rotating body 800 by an adhesive, and the second positioning member 500 may be fixed to a bracket by an adhesive.
Preferably, as shown in fig. 2 and 6, the rotational positioning mechanism further includes a metal gasket 200, and the metal gasket 200 is sleeved on the rotating shaft 100 and abuts between the flange 101 of the rotating shaft 100 and the outer bracket 400.
Further, in this embodiment, the metal gasket 200 includes a first gasket 201 and a second gasket 202, the first gasket 201 abuts against a side of the external bracket 400 away from the second positioning member 500, the second gasket 202 is stacked on a side of the first gasket 201 away from the external bracket 400 and abuts against the flange 101 of the rotating shaft 100, the first gasket 201 is a flat gasket for improving the tightness of the rotating shaft 100 in screwing the external bracket 400 and the rotating body 800, and the second gasket 202 is a spring gasket for preventing screws from loosening.
In this embodiment, the rotating shaft 100 is a cup head screw.
In this embodiment, as shown in fig. 1 to fig. 2 and fig. 5, the rotating body 800 is a housing with a cavity 801, two ends of the outer bracket 400 are respectively and symmetrically connected to two sides of the rotating body 800, the number of the first positioning elements 700 and the second positioning elements 500 is two, the two first positioning elements 700 are symmetrically connected to two sides of the rotating body 800, the two second positioning elements 500 are symmetrically connected to two ends of the outer bracket 400, and the rotational positioning of the rotating body 800 is more stable.
Preferably, as shown in fig. 3 and 4, in the present embodiment, the first positioning member 700 is provided with scales 702 distributed circumferentially, and the second positioning member 500 is provided with an indication mark 502 pointing to the scales 702. When the rotating body 800 rotates, the first positioning member 700 also rotates along with the rotating body 800, the indication mark 502 fixed on the second positioning member 500 can point to the current rotating angle of the first positioning member 700, so that a user can visually see the current rotating angle of the rotating body 800, and the angle can be conveniently adjusted.
In some embodiments, the rotating body 800 may further include a light source, and the rotating and positioning mechanism may control the light source to rotate 360 ° around the rotating shaft by adjusting and fixing the rotating body 800, so as to adjust the light emitting direction of the light source. Specifically, in one embodiment of the present invention, the rotational positioning mechanism can be applied to a lighting fixture, and the light source of the lighting fixture is disposed on the rotating body 800, so that the light source of the lighting fixture forms an annular light source capable of being rotationally positioned by 360 degrees.
When the rotary positioning mechanism provided by this embodiment is used, the rotating shaft 100 is unscrewed to increase the distance between the outer rack 400 and the rotating body 800, the first toothed portion 703 of the first positioning member 700 and the second toothed portion 503 of the second positioning member 500 are disengaged, the rotating body 800 can rotate around the rotating shaft 100 relative to the outer rack 400 to perform rotation angle adjustment, after the angle of the rotating body 800 is adjusted, the rotating shaft 100 is screwed to engage the first toothed portion 703 and the second toothed portion 503, so as to fix the position of the rotating body 800, and the scale 702 on the first positioning member 700 pointed by the indication mark 502 on the second positioning member 500 is read to obtain the rotation angle information of the current rotating body 800.
The above-mentioned embodiments are only one of the preferred embodiments of the present invention, and the ordinary changes and substitutions performed by those skilled in the art within the technical scope of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A rotational positioning mechanism, comprising:
a rotating body;
an outer support;
the first positioning piece is fixedly connected to the rotating body, and a first tooth part is arranged on one side, far away from the rotating body;
the second positioning piece is fixedly connected to the outer bracket, and a second tooth part is arranged on one side, far away from the outer bracket, of the second positioning piece, wherein the second tooth part can be meshed with or separated from the first tooth part;
the rotating shaft part sequentially penetrates through the outer support, the second positioning part and the first positioning part to be connected with the rotating body, the first end part of the rotating shaft extends into the rotating body, and the second end part of the rotating shaft is provided with a flange extending in the radial direction and is positioned on one side of the outer support, which is far away from the second positioning part;
the rotating body is connected with the outer bracket through the rotating shaft, and when the second tooth part is separated from the first tooth part, the rotating body can rotate around the rotating shaft relative to the outer bracket.
2. The rotary positioning mechanism of claim 1, wherein a central axis of the first positioning member defines a first opening for the rotation shaft to pass through, and the first teeth are circumferentially distributed around an outer periphery of the first opening.
3. The rotating positioning mechanism according to claim 1, wherein a second opening is formed in a central axis of the second positioning member for the rotating shaft to pass through, and the second teeth are circumferentially distributed around an outer periphery of the second opening.
4. The rotational positioning mechanism of claim 1, wherein the first positioning member is fixed to the rotating body by a first connecting member, and the first connecting member is a countersunk screw.
5. The rotational positioning mechanism of claim 1, wherein the second positioning member is fixed to the outer bracket by a second connector, and the second connector is a cup screw.
6. The rotating positioning mechanism of claim 5, wherein the nut of the second connecting member is located on a side of the outer bracket away from the second positioning member.
7. The rotary positioning mechanism according to claim 1, wherein the rotating shaft is a screw, the screw of the rotating shaft is in threaded connection with the rotating body, and the nut of the rotating shaft is located on a side of the outer bracket away from the second positioning element.
8. The rotary positioning mechanism as claimed in claim 1, comprising a metal gasket, wherein the metal gasket is sleeved on the rotating shaft and abuts between the flange of the rotating shaft and the external bracket.
9. The rotary positioning mechanism of claim 8, wherein the metal washer comprises a first washer and a second washer, the first washer abuts against a side of the outer bracket away from the second positioning member, the second washer is stacked on a side of the first washer away from the outer bracket and abuts against the flange of the rotating shaft, the first washer is a flat washer, and the second washer is a spring washer.
10. The rotary positioning mechanism as recited in any one of claims 1-9, wherein the first positioning member is provided with circumferentially distributed scales, and the second positioning member is provided with indication marks pointing to the scales.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120193301.6U CN214351971U (en) | 2021-01-23 | 2021-01-23 | Rotary positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120193301.6U CN214351971U (en) | 2021-01-23 | 2021-01-23 | Rotary positioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214351971U true CN214351971U (en) | 2021-10-08 |
Family
ID=77958822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120193301.6U Active CN214351971U (en) | 2021-01-23 | 2021-01-23 | Rotary positioning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214351971U (en) |
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2021
- 2021-01-23 CN CN202120193301.6U patent/CN214351971U/en active Active
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