Rotary limiting device

Abstract

The utility model relates to a connecting assembly, in particular to a rotation limiting device which comprises a first sleeve and a second sleeve. The first end of the adapter sleeve is arranged in the first sleeve in a penetrating manner and is fixedly connected with the first sleeve; the first surface of the limiting module is used for abutting against the first sleeve, and the second surface of the limiting module is used for abutting against the second sleeve; a first key is arranged at the position, facing the limiting module, of the first sleeve, a first fan-shaped groove extending in the axial direction is formed in the first face of the limiting module, and the first key is arranged in the first fan-shaped groove in a penetrating mode. A second key is arranged at the position, facing the limiting module, of the second sleeve, a second fan-shaped groove extending in the axial direction is formed in the second face of the limiting module, and the second key is arranged in the second fan-shaped groove in a penetrating mode. By means of the structure, the first face and the second face of the limiting module are respectively provided with the fan-shaped grooves unfolded at the corresponding angles, and the relative rotation angle of the support can reach more than 360 degrees.

Description

TECHNICAL FIELD

[0001] The utility model relates to a connecting assembly, especially a rotary limiting device. BACKGROUND

[0002] The description in this part only provides the background information related to the utility model disclosure and does not constitute the prior art.

[0003] The existing connecting assembly of support is generally the traditional bearing connection without limiting, in some cases, considering the space use demand or preventing the transmission wire material inside the support from breaking, therefore the connecting assembly is combined by the combination of the convex key and the concave groove to reach the purpose of limiting the rotary angle of support.

[0004] However, in some use scenarios, the support needs to be limited to a larger angle, and the existing connecting assembly can generally only realize the limiting within 360 degrees, which is difficult to meet the use demand.

[0005] It should be noted that the above introduction to the technical background is only to facilitate the clear and complete description of the technical scheme of the utility model, and to facilitate the understanding of the technical personnel in the art. The above technical scheme cannot be considered as known to the technical personnel in the art only because it is described in the background technology part of the utility model. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a rotary limiting device, which can set the corresponding angle expanding fan-shaped grooves on the first face and the second face of the limiting module respectively, so that the relative rotary angle of the support can reach more than 360 degrees.

[0007] In order to achieve the above purpose, the utility model discloses a rotary limiting device, which comprises:

[0008] A first sleeve;

[0009] A second sleeve;

[0010] An adapter sleeve, which has oppositely arranged first and second ends, the first end of the adapter sleeve is arranged in the interior of the first sleeve and is fixedly connected with the first sleeve;

[0011] A limiting module is arranged between the first sleeve and the second sleeve, the limiting module has a first surface and a second surface arranged oppositely, the first surface of the limiting module is used for abutting against the first sleeve, the second surface of the limiting module is used for abutting against the second sleeve, the limiting module has a through hole, the adapter sleeve passes through the through hole, so that the second end of the adapter sleeve extends into the interior of the second sleeve and abuts against the inner wall of the second sleeve.

[0012] The first sleeve is provided with a first key towards the limiting module, the first surface of the limiting module is provided with a first fan-shaped slot extending in the axial direction, the first key passes through the first fan-shaped slot to limit the rotation angle of the first sleeve relative to the limiting module; the second sleeve is provided with a second key towards the limiting module, the second surface of the limiting module is provided with a second fan-shaped slot extending in the axial direction, the second key passes through the second fan-shaped slot to limit the rotation angle of the second sleeve relative to the limiting module.

[0013] As a further description of the above technical solution, the sum of the angles of the first fan-shaped slot and the second fan-shaped slot is not less than 360 degrees.

[0014] As a further description of the above technical solution, the limiting module is provided with a rubber ring.

[0015] As a further description of the above technical solution, the limiting module is provided as an integral structure.

[0016] As a further description of the above technical solution, the rotation limiting device further comprises a fastener, the fastener passes through the first end of the adapter sleeve and the first sleeve to fix the first sleeve and the adapter sleeve.

[0017] As a further description of the above technical solution, the first fan-shaped slot and the second fan-shaped slot have the same diameter.

[0018] As a further description of the above technical solution, the projection planes of the first fan-shaped slot and the second fan-shaped slot are mirror images.

[0019] Through the above technical solution, the beneficial effects of the present application are as follows:

[0020] The rotating limiting device can be used for rotating the bracket to a certain angle through the first sleeve and the second sleeve.

[0021] For further understanding of the features and technical contents of the present application, please refer to the following detailed description and drawings of the present application, however, the drawings provided are only for reference and illustration, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0023] Figure 1 is a perspective view of a rotating limiting device provided by the present application;

[0024] Figure 2 is a perspective view of a rotating limiting device provided by the present application;

[0025] Figure 3 is a bottom view of a limiting module of a rotating limiting device provided by the present application;

[0026] Figure 4 is a top view of a limiting module of a rotating limiting device provided by the present application;

[0027] In the drawings: 1, first sleeve; 11, first key; 2, second sleeve; 21, second key; 3, adapter sleeve; 4, limiting module; 41, first fan-shaped groove; 42, second fan-shaped groove; 5, rubber ring; 6, fastener. DETAILED DESCRIPTION

[0028] In order to make the person skilled in the art better understand the technical solutions in the specification, the technical solutions in the specification will be clearly and completely described below in combination with the drawings in the specification. Obviously, the described embodiments are only a part of the embodiments of the specification, not all. Based on the embodiments in the specification, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the specification.

[0029] The following is to illustrate the embodiments of the utility model through specific specific embodiments, and the person skilled in the art can understand the advantages and effects of the utility model from the disclosed content of the specification. The utility model can be implemented or applied through other different specific embodiments, and each detail in the specification can be modified and changed in various ways based on different viewpoints and applications without departing from the concept of the utility model. In addition, the drawings of the utility model are only simple schematic illustrations, not the depiction of actual size, and the prior declaration is made. The following embodiments will further illustrate the related technical content of the utility model in detail, but the disclosed content is not used to limit the protection scope of the utility model.

[0030] It should be understood that although the terms "first", "second", "third" and the like may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein may include any one or more combinations of the associated listed items.

[0031] Please refer to Figures 1-4 , a rotating limiting device, wherein the rotating limiting device comprises:

[0032] The first sleeve 1;

[0033] The second sleeve 2;

[0034] The adapter sleeve 3 has oppositely arranged first and second ends, the first end of the adapter sleeve 3 is arranged in the interior of the first sleeve 1 and is fixedly connected with the first sleeve 1;

[0035] The limiting module 4 is arranged between the first sleeve 1 and the second sleeve 2, the limiting module 4 has oppositely arranged first and second faces, the first face of the limiting module 4 is used for abutting against the first sleeve 1, and the second face of the limiting module 4 is used for abutting against the second sleeve 2. The limiting module 4 has a through hole, the adapter sleeve 3 passes through the through hole, so that the second end of the adapter sleeve 3 extends into the interior of the second sleeve 2 and abuts against the inner wall of the second sleeve 2;

[0036] The first sleeve 1 is provided with a first key 11 at the position facing the limiting module 4, the first surface of the limiting module 4 is provided with a first sector slot 41 extending around the axial direction, and the first key 11 is arranged in the first sector slot 41 to limit the rotation angle of the first sleeve 1 relative to the limiting module 4; the second sleeve 2 is provided with a second key 21 at the position facing the limiting module 4, the second surface of the limiting module 4 is provided with a second sector slot 42 extending around the axial direction, and the second key 21 is arranged in the second sector slot 42 to limit the rotation angle of the second sleeve 2 relative to the limiting module 4.

[0037] Through the above structure, during installation, the operator only needs to install the limiting module 4 with the corresponding first sector slot 41 and second sector slot 42 around the axial angle between the first sleeve 1 and the second sleeve 2 according to the actual limiting angle requirement, and then inserts the first key 11 into the matching first sector slot 41 and the second key 21 into the matching second sector slot 42, and inserts the adapter sleeve 3 into the second sleeve 2 and is fixed between the first sleeve 1.

[0038] During the above use process, when the support rotates, the first key 11 moves in the first sector slot 41 until it touches the edge wall surface of the first sector slot 41, and then further rotates the limiting module 4 relative to the second key 21 of the second sleeve 2 until the second key 21 touches the edge wall surface of the second sector slot 42 of the limiting module 4 to reach the maximum limiting angle.

[0039] With the above structure, since the first sector slot 41 can be greater than 180 degrees, and the second sector slot 42 can also be greater than 180 degrees, the final rotation angle is the combined angle of the first sector slot 41 and the second sector slot 42, that is, the relative rotation maximum angle of the support in the embodiment before being limited can exceed 360 degrees, which significantly improves the application range compared with the existing limiting device capable of limiting 360 degrees.

[0040] It is worth noting that, by means of the structure of the embodiment, limiting within 720 degrees can be achieved, of course, under the condition of considering the material strength, the actual rotation limiting angle that makes the rotation relatively stable can be selected as needed. At the same time, through the fit and abutment of the adapter sleeve 3 to the inner wall of the second sleeve 2, the stability of rotation can be effectively improved.

[0041] Further, the sum of the angles of the first sector slot 41 and the second sector slot 42 is not less than 360 degrees. That is, on the basis of the embodiment, the support can realize the setting of a limiting angle of more than 360 degrees of a full circle on the basis of the effective physical limiting of the limiting module 4.

[0042] Further, please refer to Figure 2The rubber ring 5 is arranged outside the limiting module 4, so that the limiting module 4 can be effectively prevented from being abraded under the influence of external force collision, and the rotating noise can be reduced to a certain extent, and the stability of rotation is improved.

[0043] Further, the limiting module 4 is arranged in an integrated structure, so that the integrated structure has better structural strength when limiting the first sleeve 1 and the second sleeve 2 at the limiting point, and damage caused by excessive rotating torque can be avoided.

[0044] Further, the rotating limiting device further comprises a fastener 6, the fastener 6 is arranged through the first end of the adapter sleeve 3 and the first sleeve 1, so that the first sleeve 1 and the adapter sleeve 3 are fixed with each other. The fastener 6 is arranged through the first sleeve 1 and the adapter sleeve 3 along the radial direction, so that the two can be effectively fixed, and assembly and disassembly are facilitated.

[0045] Further, the diameters of the first fan-shaped groove 41 and the second fan-shaped groove 42 are the same, and the projection planes of the first fan-shaped groove 41 and the second fan-shaped groove 42 are mirror images. Through the above structure, when the first fan-shaped groove 41 and the second fan-shaped groove 42 are processed, time and processing cost can be saved, and the specific angles of the first fan-shaped groove 41 and the second fan-shaped groove 42 are determined on the basis of the total limiting angle.

[0046] The above disclosed content is only the preferred feasible embodiment of the utility model, and does not limit the patent application range of the utility model, so that equivalent technical changes made by applying the utility model specification and drawing are included in the patent application range of the utility model.

[0047] Each embodiment in the specification is described in a progressive manner, and the same or similar parts of each embodiment can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0048] Although the present application is described through embodiments, those skilled in the art know that the present application has many modifications and changes without departing from the spirit of the present application, and it is hoped that the attached embodiments include these modifications and changes without departing from the present application.

Claims

1. A rotation limiting device, characterized in that, The rotation limiting device includes: First sleeve; Second sleeve; An adapter sleeve has a first end and a second end that are disposed opposite to each other. The first end of the adapter sleeve passes through the interior of the first sleeve and is fixedly connected to the first sleeve. A limiting module is disposed between the first sleeve and the second sleeve. The limiting module has a first surface and a second surface that are disposed opposite to each other. The first surface of the limiting module is used to abut against the first sleeve, and the second surface of the limiting module is used to abut against the second sleeve. The limiting module has a through hole through which the adapter sleeve passes, such that the second end of the adapter sleeve extends into the interior of the second sleeve and abuts against the inner wall of the second sleeve. The first sleeve has a first key facing the limiting module, and the first side of the limiting module has a first sector-shaped groove extending around the axis. The first key passes through the first sector-shaped groove to limit the rotation angle of the first sleeve relative to the limiting module. The second sleeve has a second key facing the limiting module, and the second side of the limiting module has a second sector-shaped groove extending around the axis. The second key passes through the second sector-shaped groove to limit the rotation angle of the second sleeve relative to the limiting module.

2. The rotation limiting device according to claim 1, characterized in that: The sum of the angles between the first sector groove and the second sector groove is not less than 360 degrees.

3. The rotation limiting device according to claim 1, characterized in that: The limiting module is fitted with a rubber ring.

4. The rotation limiting device according to claim 1, characterized in that: The limiting module is configured as an integral structure.

5. The rotation limiting device according to claim 1, characterized in that: The rotation limiting device also includes a fastener, which passes through the first end of the adapter sleeve and the first sleeve to fix the first sleeve and the adapter sleeve to each other.

6. The rotation limiting device according to claim 1, characterized in that: The first sector groove has the same diameter as the second sector groove.

7. The rotation limiting device according to claim 6, characterized in that: The projection surfaces of the first sector slot and the second sector slot are mirror images of each other.

Images