Rotating mechanism for seat armrest and seat armrest

Abstract

The utility model belongs to the technical field of seat armrests, and particularly relates to a rotating mechanism for a seat armrest and the seat armrest, the rotating mechanism comprises a support plate, a rotating shaft, a rotating shaft and a rotating shaft, a plurality of C-shaped parts are circularly arranged on the inner wall of the first concave part at equal intervals in an array manner; the disc is arranged in the first concave part, and a first bulge is arranged at the bottom of the disc; wherein the first bulge is positioned in the first through part; the rotating seat is arranged at the bottom of the first bulge and is connected with the first bulge; the at least two first positioning bead screws are embedded in the arc surface of the disc at equal intervals; according to the rotating mechanism for the seat armrest and the seat armrest, the supporting plate is rotated relative to the disc and the rotating base, in the rotating process, all the C-shaped parts can sequentially extrude the first positioning bead screws and are clamped into the current C-shaped part when the supporting plate stops rotating, and therefore the 360-degree rotating positioning function is achieved, the supporting plate is locked at different angles, and the rotating effect is good. And different use requirements of users are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of seat armrests, and particularly relates to a rotating mechanism for a seat armrest and the seat armrest. Background Art

[0002] A seat armrest refers to a configuration located on the side of a seat or between two seats. Its main function is to provide elbow support to increase riding comfort.

[0003] In the design and application of seat armrests, the rotation angle of the armrest has always been a key consideration. Traditional seat armrests often limit the rotation angle of the armrest to ensure safety. Although this restriction reduces the possibility of armrest instability or detachment to a certain extent, it also brings obvious disadvantages. The excessive angle restriction makes the armrest severely inflexible in different usage scenarios and user needs. For example, when the user needs to lean on the armrest in various postures or positions, the limited rotation angle cannot provide comfortable and effective support. This not only affects the user experience, but also limits the functionality and applicability of the seat armrest.

[0004] Therefore, in order to solve the above problems, it is necessary to design a seat armrest rotation mechanism and a seat armrest. Utility Model Content

[0005] The purpose of the utility model is to provide a rotating mechanism for a seat armrest and a seat armrest, so as to solve the technical problems mentioned in the background technology.

[0006] In order to solve the above technical problems, the utility model provides a rotating mechanism for a seat armrest, comprising:

[0007] The support plate has a first recess and a first through portion in its middle;

[0008] A plurality of C-shaped portions are provided in a circular equidistant array on the inner wall of the first recess;

[0009] The disc is arranged in the first recess and has a first protrusion at its bottom;

[0010] The first protrusion is located in the first through portion;

[0011] A rotating seat is provided at the bottom of the first protrusion and connected to the first protrusion;

[0012] At least two first positioning ball screws are equidistantly embedded on the arc surface of the disc;

[0013] The two first positioning ball screws are adapted to be sequentially inserted into adjacent C-shaped portions when the support plate rotates, so as to achieve rotational positioning.

[0014] Furthermore, a special-shaped recess is provided at the bottom of the first protrusion;

[0015] The top of the rotating seat is provided with a special-shaped protrusion;

[0016] The special-shaped protrusion is adapted to the special-shaped recess; and

[0017] The special-shaped protrusion is suitable for being inserted into the special-shaped recess.

[0018] Furthermore, a threaded hole is provided on the top of the special-shaped protrusion;

[0019] A through hole is provided in the middle of the disc;

[0020] The rotating seat and the disc are adapted to be connected by bolts; and

[0021] The bolt is adapted to pass through the through hole and engage with the threaded hole.

[0022] Furthermore, at least two hemispherical recesses are provided in the first recess; wherein

[0023] The two hemispherical recesses are equidistantly arranged around the first through portion;

[0024] At least two second positioning ball screws are embedded in the bottom of the disc;

[0025] The two second positioning ball screws are equidistantly arranged around the through hole;

[0026] When the support plate is rotated to a specified angle, the two second positioning ball screws are clamped into the corresponding hemispherical recesses.

[0027] Furthermore, an armrest base is provided at the bottom of the support plate;

[0028] A long through portion is provided in the middle of the armrest base; and

[0029] The special-shaped protrusion is suitable for passing through the long through portion and then being inserted into the special-shaped recess.

[0030] Furthermore, an armrest cover is engaged with the top of the armrest base.

[0031] On the other hand, the present invention also provides a chair armrest, comprising:

[0032] A connecting arm, a telescopic arm rotatably connected to the connecting arm, a fixed arm connected to the telescopic arm, and the rotating mechanism for the seat armrest; wherein

[0033] The connecting arm is rotatably connected to the seat armrest via a rotating seat of a rotating mechanism.

[0034] The beneficial effects of the utility model are:

[0035] (1) When the angle of the seat armrest needs to be adjusted, the user can rotate the support plate relative to the disc and the rotating seat. During the rotation process, each C-shaped part will squeeze the first positioning ball screw in turn and get stuck in the current C-shaped part when the support plate stops rotating, thereby realizing a 360° rotation positioning function to lock the support plate at different angles to meet the different usage needs of users.

[0036] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 The explosion of the preferred embodiment of the utility model is Figure 1 ;

[0040] Figure 2 The explosion of the preferred embodiment of the utility model is Figure 2 ;

[0041] Figure 3 It is an assembly perspective view of the preferred embodiment of the entire utility model;

[0042] Figure 4 It is a three-dimensional diagram of a preferred embodiment of the seat armrest of the present utility model.

[0043] In the picture:

[0044] Support plate 1, first recessed portion 101, first through portion 102, C-shaped portion 103, hemispheric recessed portion 104;

[0045] Disc 2, first protrusion 201, irregularly shaped recess 202, through hole 203;

[0046] Rotating seat 3, special-shaped protrusion 301, threaded hole 302;

[0047] First positioning ball screw 4, second positioning ball screw 5, handrail base 6, long through portion 601;

[0048] Armrest cover 7, connecting arm 8, telescopic arm 9, fixed arm 10. DETAILED DESCRIPTION

[0049] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention. Example 1

[0050] like Figures 1 to 3 As shown, this embodiment provides a rotating mechanism for a seat armrest, comprising:

[0051] A support plate 1 is provided with a first recess 101 and a first through portion 102 in the middle thereof; wherein a plurality of C-shaped portions 103 are provided in a circular equidistant array on the inner wall of the first recess 101; a disc 2 is arranged in the first recess 101, and a first protrusion 201 is provided at the bottom thereof; wherein the first protrusion 201 is located in the first through portion 102; a rotating seat 3 is arranged at the bottom of the first protrusion 201 and connected to the first protrusion 201; at least two first positioning ball screws 4 are equidistantly embedded in the arc surface of the disc 2; wherein the two first positioning ball screws 4 are suitable for being sequentially snapped into adjacent C-shaped portions 103 when the support plate 1 rotates to achieve rotational positioning; wherein the connection between the rotating seat 3 and the first protrusion 201 provides stable support for the support plate 1, so that the first through portion 102 of the support plate 1 can rotate 360° around the first protrusion 201.

[0052] In this embodiment, when the angle of the seat armrest needs to be adjusted, the user can rotate the support plate 1 relative to the disc 2 and the rotating seat 3. During the rotation process, each C-shaped portion 103 will squeeze the first positioning ball screw 4 in turn, and when the support plate 1 stops rotating, it will be stuck in the current C-shaped portion 103, thereby realizing a 360° rotation positioning function to lock the support plate 1 at different angles to meet the different usage needs of users.

[0053] A special-shaped recess 202 is provided at the bottom of the first protrusion 201; a special-shaped protrusion 301 is provided at the top of the rotating seat 3; the special-shaped protrusion 301 is adapted to the special-shaped recess 202; and the special-shaped protrusion 301 is suitable for being inserted into the special-shaped recess 202; the adaptation design of the special-shaped recess 202 and the special-shaped protrusion 301 ensures a firm connection between the disc 2 and the rotating seat 3, thereby improving the overall stability and reliability.

[0054] A threaded hole 302 is provided at the top of the special-shaped protrusion 301; a through hole 203 is provided in the middle of the disc 2; the rotating seat 3 and the disc 2 are suitable for being connected by bolts; and the bolts are suitable for passing through the through hole 203 and then engaging with the threaded hole 302; the rotating seat 3 and the disc 2 are connected by bolts, which greatly enhances the connection strength between them.

[0055] At least two hemispherical recesses 104 are provided in the first recess 101; wherein the two hemispherical recesses 104 are equidistantly arranged around the first through portion 102; at least two second positioning ball screws 5 are embedded in the bottom of the disc 2; wherein the two second positioning ball screws 5 are equidistantly arranged around the through hole 203; when the support plate 1 is rotated to a specified angle, the two second positioning ball screws 5 are snapped into the corresponding hemispherical recesses 104; wherein, by providing the hemispherical recesses 104 and the second positioning ball screws 5, it is achieved that when rotating to a certain angle, the second positioning ball screw 5 is snapped into the hemispherical recess 104 (when not snapped into the hemispherical recess 104, it is offset against the first recess 101) to enhance the rotation resistance and remind the user of the current rotation angle of the support plate 1 (the support plate 1 is perpendicular to the backrest). If the angle of the support plate 1 needs to be adjusted again, the user can slide the second positioning ball screw 5 in the hemispherical recess 104 to the first recess 101 by applying a slight force.

[0056] An armrest base 6 is provided at the bottom of the support plate 1 ; a long through portion 601 is provided in the middle of the armrest base 6 ; and the special-shaped protrusion 301 is adapted to pass through the long through portion 601 and then be inserted into the special-shaped recess 202 .

[0057] An armrest cover 7 is engaged with the top of the armrest base 6 .

[0058] In this embodiment, by providing an armrest base 6 and an armrest cover 7, dust and other debris can be prevented from entering the rotating mechanism, thereby extending the service life of the rotating mechanism; at the same time, the addition of the armrest cover 7 can make the user more comfortable when supporting the user's arm. Example 2

[0059] like Figure 4 As shown, this embodiment also provides a chair armrest, comprising:

[0060] A connecting arm 8, a telescopic arm 9 rotatably connected to the connecting arm 8, a fixed arm 10 connected to the telescopic arm 9 and the seat armrest rotating mechanism; wherein the connecting arm 8 is rotatably connected to the rotating seat 3 of the seat armrest rotating mechanism.

[0061] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0062] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0063] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0064] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A rotary mechanism for a seat armrest, characterized in that: include: A support plate (1), wherein a first recess (101) and a first through portion (102) are provided in the middle thereof; in A plurality of C-shaped portions (103) are provided in a circular equidistant array on the inner wall of the first recess (101); The disc (2) is arranged in the first recess (101), and a first protrusion (201) is provided at the bottom thereof; wherein The first protrusion (201) is located in the first through portion (102); A rotating seat (3) is arranged at the bottom of the first protrusion (201) and connected to the first protrusion (201); At least two first positioning ball screws (4) are equidistantly embedded on the arc surface of the disc (2); wherein The two first positioning ball screws (4) are adapted to be sequentially snapped into adjacent C-shaped portions (103) when the support plate (1) rotates, so as to achieve rotational positioning.

2. The seat armrest rotation mechanism according to claim 1, wherein: A special-shaped recess (202) is provided at the bottom of the first protrusion (201); The top of the rotating seat (3) is provided with a special-shaped protrusion (301); wherein The special-shaped protrusion (301) is adapted to the special-shaped recess (202); and The special-shaped protrusion (301) is suitable for being inserted into the special-shaped recess (202).

3. The seat armrest rotation mechanism according to claim 2, wherein: A threaded hole (302) is provided on the top of the special-shaped protrusion (301); A through hole (203) is provided in the middle of the disc (2); wherein The rotating seat (3) and the disc (2) are adapted to be connected via bolts; and The bolt is adapted to pass through the through hole (203) and then engage with the threaded hole (302).

4. The seat armrest rotation mechanism according to claim 3, wherein: At least two hemispherical recesses (104) are provided in the first recess (101); wherein The two hemispherical recesses (104) are equidistantly arranged around the first through portion (102); At least two second positioning ball screws (5) are embedded in the bottom of the disc (2); wherein The two second positioning ball screws (5) are arranged at equal distances around the through hole (203); When the support plate (1) is rotated to a specified angle, the two second positioning ball screws (5) are snapped into the corresponding hemispherical recesses (104).

5. The seat armrest rotation mechanism according to claim 4, wherein: The bottom of the support plate (1) is provided with an armrest base (6); wherein A long through portion (601) is provided in the middle of the armrest base (6); and The special-shaped protrusion (301) is suitable for passing through the long through portion (601) and then being inserted into the special-shaped recess (202).

6. The seat armrest rotation mechanism according to claim 5, wherein: An armrest cover (7) is engaged with the top of the armrest base (6).

7. A chair armrest, characterized in that: include: A connecting arm (8), a telescopic arm (9) rotatably connected to the connecting arm (8), a fixed arm (10) connected to the telescopic arm (9), and a rotating mechanism for a seat armrest as claimed in any one of claims 1 to 6; wherein The connecting arm (8) is rotatably connected to the rotating seat (3) of the seat armrest rotating mechanism.

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