Angle adjustment locking mechanism for seat armrest and seat armrest

Abstract

The utility model belongs to the technical field of seat armrests, and particularly relates to an angle adjusting and locking mechanism for a seat armrest and the seat armrest, the angle adjusting and locking mechanism comprises a connecting arm, the connecting arm comprises a rotating part located at the top of the connecting arm, a placing part located at the bottom of the connecting arm and a communicating part used for communicating the placing part with the rotating part; the rotating part is arranged in the rotating part and is rotationally connected with the connecting arm; wherein a first abutting part is arranged at the bottom of the rotating piece; the locking piece is in sliding connection with the placing part and the communicating part; when the locking piece slides into the rotating part, the locking piece makes contact with the first abutting part of the rotating piece so as to limit rotation of the rotating piece. According to the angle adjustment locking mechanism for the seat armrest and the seat armrest, rotation limiting on the rotating piece is canceled when the locking piece slides and retreats from the interior of the rotating part, rotation limiting on the rotating piece is achieved through the locking piece, the situation that a user is pinched due to accidental rotation of the armrest plate is effectively prevented, and the safety of a product is improved.

Description

Technical Field

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

[0002] Current gaming chairs, study chairs, etc. are usually equipped with armrests to support the user's arms to meet comfort needs.

[0003] Traditional chair armrests typically feature a rotating design that allows them to rotate with the user's arm to a certain angle, but lack a locking mechanism. This can lead to unexpected rotation during use, causing significant inconvenience for the user. When a user's hand is within the armrest's rotational range, it can easily be pinched, causing injury. This design flaw not only impacts the user experience but also poses a safety hazard.

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

[0005] The utility model aims to provide an angle adjustment locking mechanism for a seat armrest and a seat armrest, so as to solve the technical problem that the armrest plate is easy to pinch the hand.

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

[0007] The connecting arm comprises: a rotating portion located at the top of the connecting arm, a placing portion located at the bottom of the connecting arm, and a connecting portion for connecting the placing portion and the rotating portion;

[0008] The rotating member is arranged in the rotating part and is rotatably connected to the connecting arm;

[0009] A first abutment portion is provided at the bottom of the rotating member;

[0010] The locking member is slidably connected with the placement portion and the communication portion; wherein

[0011] When the locking member slides into the rotating portion, the locking member contacts the first abutting portion of the rotating member to limit the rotation of the rotating member; and

[0012] When the locking member slides out of the rotating portion, the rotation limit on the rotating member is cancelled.

[0013] Furthermore, a spring is provided in the placement portion; wherein

[0014] The two ends of the spring respectively abut against the inner wall of the placement portion and the locking member; and

[0015] The spring is suitable for supporting the locking member to be located in the rotating portion so as to limit the rotation of the rotating member.

[0016] Furthermore, the locking member is in the shape of a "factory";

[0017] The locking member is adapted to compress the spring when pressed and be pushed out from the rotating portion to cancel the rotation limit on the rotating member.

[0018] Furthermore, a first limiting cylinder is provided at one end of the locking member;

[0019] A second limiting cylinder is provided in the placement portion;

[0020] The second limiting cylinder is connected to the inner wall of the placement portion; and

[0021] The two ends of the spring are respectively sleeved on the first limiting cylinder and the second limiting cylinder.

[0022] Furthermore, a decorative cover is provided at the bottom of the connecting arm;

[0023] The decorative cover is engaged with the placement portion;

[0024] The decorative cover is provided with an avoidance passage; and

[0025] The avoidance passage is suitable for sliding avoidance of the locking piece.

[0026] Furthermore, decorative pieces are provided on both sides of the locking member;

[0027] The decorative sheet is located between the decorative cover and the placement portion.

[0028] Furthermore, at least one positioning ball screw is embedded in the bottom of the rotating member;

[0029] A second abutment portion is provided in the rotating portion;

[0030] The second abutment portion is adapted to be located below the locking member when the locking member is located in the rotating portion;

[0031] At least one first recess and at least one second recess are provided in the rotating portion; wherein

[0032] When the rotating member is not rotating, the first abutting portion contacts the locking member, and the positioning ball screw is located in the first recess; and

[0033] When the rotating member rotates until the first abutting portion contacts the second abutting portion, the positioning ball screw is located in the second recess.

[0034] On the other hand, the present invention also provides a chair armrest, comprising:

[0035] Telescopic arm, armrest plate, connecting plate connected to the telescopic arm and the seat armrest angle adjustment locking mechanism; wherein

[0036] The telescopic arm is rotatably connected to the seat armrest via a connecting arm of an angle adjustment locking mechanism; and

[0037] The armrest plate is connected to the seat armrest using a rotating member of an angle adjustment locking mechanism.

[0038] The beneficial effects of the utility model are:

[0039] (1) When it is necessary to lock the angle of the armrest, slide the locking member along the connecting portion into the rotating portion so that it contacts the first abutting portion of the rotating member. At this time, the locking member limits the rotating member to prevent it from rotating, thereby achieving angle locking of the armrest; when it is necessary to adjust the angle of the armrest, slide the locking member along the connecting portion out of the rotating portion to release the rotation limit of the rotating member. At this time, the rotating member can rotate freely, driving the armrest to adjust to the desired angle; by limiting the rotation of the rotating member by the locking member, the armrest is effectively prevented from being pinched by the user due to accidental rotation, thereby improving the safety of the product.

[0040] 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.

[0041] 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

[0042] 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.

[0043] Figure 1 is a cross-sectional view of a preferred embodiment of the connecting arm of the present utility model;

[0044] Figure 2 The explosion of the preferred embodiment of the utility model is Figure 1 ;

[0045] Figure 3 The explosion of the preferred embodiment of the utility model is Figure 2 ;

[0046] Figure 4 It is a perspective view of a preferred embodiment of the entirety of the present invention;

[0047] Figure 5 It is a three-dimensional diagram of a preferred embodiment of the seat armrest of the present utility model.

[0048] In the picture:

[0049] Connecting arm 1, rotating portion 101, placement portion 102, communication portion 103, second limiting cylinder 104, second abutting portion 105, first recess 106, second recess 107;

[0050] Rotating member 2, first abutting portion 201;

[0051] Locking member 3, first limiting cylinder 301, decorative piece 302;

[0052] Spring 4, decorative cover 5, avoidance passage 501;

[0053] Position the ball screw 6, telescopic arm 7, and armrest plate 8. DETAILED DESCRIPTION

[0054] 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

[0055] like Figures 1 to 4 As shown, this embodiment provides an angle adjustment locking mechanism for a seat armrest, comprising:

[0056] The connecting arm 1 comprises: a rotating portion 101 located at the top of the connecting arm 1, a placing portion 102 located at the bottom of the connecting arm 1, and a connecting portion 103 for connecting the placing portion 102 and the rotating portion 101; a rotating member 2 arranged in the rotating portion 101, which is rotatably connected to the connecting arm 1; wherein a first abutting portion 201 is provided at the bottom of the rotating member 2; a locking member 3, which is slidably connected to the placing portion 102 and the connecting portion 103; wherein when the locking member 3 slides into the rotating portion 101, the locking member 3 contacts the first abutting portion 201 of the rotating member 2 to limit the rotation of the rotating member 2; and when the locking member 3 slides out of the rotating portion 101, the rotation limit of the rotating member 2 is cancelled.

[0057] In this embodiment, when it is necessary to lock the angle of the armrest, the locking member 3 is slid along the connecting portion 103 into the rotating portion 101 so that it contacts the first abutment portion 201 of the rotating member 2. At this time, the locking member 3 limits the rotating member 2 to prevent it from rotating, thereby achieving angle locking of the armrest; when it is necessary to adjust the angle of the armrest, the locking member 3 is slid out of the rotating portion 101 along the connecting portion 103 to release the rotation limit of the rotating member 2. At this time, the rotating member 2 can rotate freely, driving the armrest to adjust to the desired angle; the rotation limit of the rotating member 2 by the locking member 3 effectively prevents the armrest from pinching the user due to accidental rotation, thereby improving the safety of the product.

[0058] A spring 4 is provided in the placement portion 102; wherein the two ends of the spring 4 respectively abut against the inner wall of the placement portion 102 and the locking member 3; and the spring 4 is suitable for supporting the locking member 3 to be located in the rotating portion 101 to limit the rotation of the rotating member 2; wherein by providing the spring 4, the locking member 3 is automatically pushed to a position in contact with the first abutting portion 201 in the rotating portion 101 by the elastic force of the spring 4, and the user does not need to manually apply additional force to maintain the locked state, thereby improving the convenience of use.

[0059] The locking piece 3 is in the shape of a "factory"; the locking piece 3 is suitable for compressing the spring 4 when pressed and being pushed out from the rotating part 101 to cancel the rotation limit of the rotating piece 2; since the locking piece 3 is in the shape of a "factory", the top and side parts of the "factory" shape allow the locking piece 3 to slide smoothly in the placement part 102 and the connecting part 103. When the locking piece 3 needs to be slid into the rotating part 101 to lock the rotating piece 2, its shape helps to ensure the smooth and accurate sliding action, while also limiting the sliding distance; in order to cancel the rotation limit of the rotating piece 2, the user needs to press the locking piece 3. Due to the "factory" shape design of the locking piece 3, especially its side part, an area that is easy to apply force is provided, and the user can easily press the locking piece 3 with his fingers to compress the spring 4 and withdraw it from the rotating part 101.

[0060] A first limiting cylinder 301 is provided at one end of the locking member 3; a second limiting cylinder 104 is provided in the placement portion 102; the second limiting cylinder 104 is connected to the inner wall of the placement portion 102; and the two ends of the spring 4 are respectively sleeved on the first limiting cylinder 301 and the second limiting cylinder 104; by providing the first limiting cylinder 301 and the second limiting cylinder 104, the correct installation and positioning of the spring 4 are ensured, and the lateral movement or twisting of the spring during the release process of the compression box is prevented.

[0061] A decorative cover 5 is provided at the bottom of the connecting arm 1; wherein the decorative cover 5 is engaged with the placement portion 102; an avoidance passage 501 is provided on the decorative cover 5; and the avoidance passage 501 is suitable for sliding avoidance of the locking member 3; wherein the decorative cover 5 is provided and a snap connection is adopted between the decorative cover 5 and the placement portion 102 to ensure that the decorative cover 5 is firmly fixed to the bottom of the connecting arm 1 and is not easy to fall off. At the same time, the snap connection also allows the user to easily remove the decorative cover 5 when necessary to maintain or replace parts inside the mechanism; by providing the avoidance passage 501, it is ensured that the locking member 3 can pass smoothly during the sliding process without being hindered by the decorative cover 5.

[0062] Decorative sheets 302 are provided on both sides of the locking member 3; wherein the decorative sheet 302 is located between the decorative cover 5 and the placement portion 102; wherein by providing the decorative sheet 302, the gap between the locking member 3 and the avoidance portion 501 when it moves is blocked, thereby enhancing the overall aesthetics of the mechanism.

[0063] At least one positioning ball screw 6 is embedded in the bottom of the rotating member 2; a second abutment portion 105 is provided in the rotating portion 101; wherein the second abutment portion 105 is adapted to be located below the locking member 3 when the locking member 3 is located in the rotating portion 101; at least one first recess 106 and at least one second recess 107 are provided in the rotating portion 101; wherein when the rotating member 2 is not rotated, the first abutment portion 201 contacts the locking member 3, and the positioning ball screw 6 is located in the first recess 106; and when the rotating member 2 rotates until the first abutment portion 201 contacts the second abutment portion 105, the positioning ball screw 6 is located in the second recess 107; wherein by providing the positioning ball screw 6, its function is to provide a retractable and elastic positioning point, with which when the rotating member 2 rotates relative to the connecting arm 1, the positioning ball screw 6 can move in different recesses, thereby achieving angular positioning and locking; wherein by providing the second abutment portion 105, it is ensured that the rotating member 2 can stop rotating when it reaches a predetermined angle. Example 2

[0064] like Figure 5 As shown, this embodiment provides a chair armrest, comprising:

[0065] A telescopic arm 7, an armrest plate 8, a connecting plate 9 connected to the telescopic arm 7, and the seat armrest angle adjustment locking mechanism; wherein the telescopic arm 7 is rotatably connected to the connecting arm 1 of the seat armrest angle adjustment locking mechanism; and the armrest plate 8 is connected to the rotating part 2 of the seat armrest angle adjustment locking mechanism; wherein the telescopic arm 7 is provided to drive the seat armrest angle adjustment locking mechanism and the armrest plate 8 to move up or down.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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. An angle adjustment locking mechanism for a seat armrest, characterized in that: include: A connecting arm (1), comprising: a rotating portion (101) located at the top of the connecting arm (1), a placement portion (102) located at the bottom of the connecting arm (1), and a connecting portion (103) for connecting the placement portion (102) and the rotating portion (101); A rotating member (2) is arranged in the rotating portion (101) and is rotatably connected to the connecting arm (1); wherein A first abutting portion (201) is provided at the bottom of the rotating member (2); The locking member (3) is slidably connected to the placement portion (102) and the communication portion (103); wherein When the locking member (3) slides into the rotating portion (101), the locking member (3) contacts the first abutting portion (201) of the rotating member (2) to limit the rotation of the rotating member (2); and When the locking member (3) slides out of the rotating portion (101), the rotation limit on the rotating member (2) is cancelled.

2. The seat armrest angle adjustment locking mechanism according to claim 1, wherein: A spring (4) is provided in the placement portion (102); wherein The two ends of the spring (4) respectively abut against the inner wall of the placement portion (102) and the locking member (3); and The spring (4) is suitable for supporting the locking member (3) to be located in the rotating portion (101) so as to limit the rotation of the rotating member (2).

3. The seat armrest angle adjustment locking mechanism according to claim 2, wherein: The locking member (3) is in a "factory" shape; The locking member (3) is adapted to compress the spring (4) when pressed, and to be pushed out from the rotating portion (101) to cancel the rotation limit of the rotating member (2).

4. The seat armrest angle adjustment locking mechanism according to claim 3, wherein: One end of the locking member (3) is provided with a first limiting cylinder (301); A second limiting cylinder (104) is provided in the placement portion (102); wherein The second limiting cylinder (104) is connected to the inner wall of the placement portion (102); and The two ends of the spring (4) are respectively sleeved on the first limiting cylinder (301) and the second limiting cylinder (104).

5. The seat armrest angle adjustment locking mechanism according to claim 4, wherein: A decorative cover (5) is provided at the bottom of the connecting arm (1); wherein The decorative cover (5) is engaged with the placement portion (102); The decorative cover (5) is provided with an avoidance passage (501); and The avoidance passage (501) is suitable for sliding avoidance of the locking member (3).

6. The seat armrest angle adjustment locking mechanism according to claim 5, wherein: Decorative pieces (302) are provided on both sides of the locking piece (3); wherein The decorative sheet (302) is located between the decorative cover (5) and the placement portion (102).

7. The seat armrest angle adjustment locking mechanism according to claim 6, wherein: At least one positioning ball screw (6) is embedded in the bottom of the rotating member (2); A second abutting portion (105) is provided in the rotating portion (101); wherein The second abutment portion (105) is suitable for being located below the locking member (3) when the locking member (3) is located in the rotating portion (101); At least one first recess (106) and at least one second recess (107) are provided in the rotating portion (101); wherein When the rotating member (2) is not rotating, the first abutting portion (201) contacts the locking member (3), and the positioning ball screw (6) is located in the first recess (106); and When the rotating member (2) rotates until the first abutting portion (201) contacts the second abutting portion (105), the positioning ball screw (6) is located in the second recess (107).

8. A chair armrest, characterized in that: include: A telescopic arm (7), an armrest plate (8), a connecting plate (9) connected to the telescopic arm (7), and an angle adjustment locking mechanism for a seat armrest as described in any one of claims 1 to 7; wherein The telescopic arm (7) is rotatably connected to the connecting arm (1) of the seat armrest angle adjustment locking mechanism; and The armrest plate (8) is connected to the rotating member (2) of the seat armrest angle adjustment locking mechanism.

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