Handrail with automatic locking of the angle of inversion

Abstract

The utility model relates to office chair accessory technical field, specifically disclose an automatic locking reverse angle's handrail, including handrail body and setting in the handrail body side surface handrail mounting piece, handrail mounting piece with handrail body rotation is connected, be provided with locking ratchet, ratchet mounting plate and several springs between handrail body and handrail mounting piece, the inside of handrail body is provided with several with locking ratchet adapts to ratchet recess, the end of locking ratchet passes through ratchet mounting plate and with ratchet recess is opposite, spring is opposite with handrail mounting piece and locking ratchet respectively, the outside of handrail body is provided with with handrail mounting piece opposite angle adjustment button. The utility model is adjusted to the suitable angle after, by locking ratchet and hold up ratchet recess on handrail body, thereby lock the reverse angle of handrail body, realize according to user demand to lock to the angle that the person needed suitably, and the application scope is wider.

Description

Technical Field

[0001] This utility model relates to the field of office chair accessories technology, and in particular to an armrest with an automatic locking and reversing angle. Background Technology

[0002] As part of the office chair, the most basic function of the armrest is to support the arms. In order to adapt to the needs of various users and sitting postures, the armrest can be adjusted to a suitable tilt angle.

[0003] A search revealed that Chinese utility model patent CN202321337175.2 discloses an office chair armrest structure, relating to the field of office supplies technology. The office chair armrest structure includes a fixed base and an adjusting rod. The fixed base has a rotating shaft rotatably connected to its front side center. An adjusting rod is fixedly mounted on the front side of the rotating shaft. A sliding rod is slidably connected inside the adjusting rod. A sliding groove is provided in the middle of the front side of the adjusting rod. The middle of the lower surface of the armrest is connected to the top of the sliding rod. Both ends of the upper surface of the armrest have mounting grooves. A fixing component is provided at the bottom of the front side of the sliding rod. A second fixing plate is installed to the bottom of the chair seat using bolts. Rotating the rotating shaft facilitates adjustment of the armrest angle. Locking components are provided on both the left and right sides of the adjusting rod. The structure also includes a second fixing plate and bolts. The second fixing plate is located at the bottom of the rear side of the fixed base, and a bolt is threaded into the screw hole at the top of the second fixing plate. This office chair armrest structure is easy to adjust, highly safe, and practical.

[0004] While the existing handrail structures can meet basic usage needs, they cannot lock the reversal angle during use, nor can they be locked to a suitable angle according to the user's needs, thus limiting their applicability. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an automatic locking and reversing angle handrail, which addresses the above-mentioned defects of the prior art. By setting springs to abut against the locking teeth and the handrail mounting parts respectively, after adjusting to a suitable angle, the locking teeth can abut against the tooth groove on the handrail body, thereby locking the reversing angle of the handrail body. This allows the handrail to be locked to a suitable angle according to the user's needs, and has a wide range of applications.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] An automatically locking and reversing angle handrail includes a handrail body and a handrail mounting member disposed on the side of the handrail body. The handrail mounting member is rotatably connected to the handrail body. A locking tooth, a tooth mounting plate, and several springs are disposed between the handrail body and the handrail mounting member. Several tooth grooves adapted to the locking tooth are disposed on the inner side of the handrail body. The end of the locking tooth passes through the tooth mounting plate and abuts against the tooth groove. The springs abut against the handrail mounting member and the locking tooth respectively. An angle adjustment button abutting against the handrail mounting member is disposed on the outer side of the handrail body.

[0008] Preferably, one side of the locking teeth is provided with a plurality of spring positioning posts adapted to the spring, the inner side of the handrail mounting component is provided with a spring mounting groove adapted to the spring, and the other side of the locking teeth is provided with a first tooth group and a second tooth group that are symmetrical to each other.

[0009] Preferably, the tooth groove includes a first tooth groove and a second tooth groove, the first tooth groove and the second tooth groove respectively abutting against the first tooth group and the second tooth group.

[0010] Preferably, the locking tooth mounting plate has a locking tooth through hole adapted to the locking tooth, and the end of the locking tooth passes through the locking tooth through hole.

[0011] Preferably, a reset post is provided on the side of the handrail mounting component, and the locking teeth, the tooth mounting plate and the handrail body are all provided with reset post through holes adapted to the reset post. The reset post passes through the reset post through hole and abuts against the angle adjustment button.

[0012] Preferably, the side of the angle adjustment button is provided with a plurality of button latching feet, and the outer side of the armrest body is provided with a plurality of latching foot through holes that are adapted to the button latching feet.

[0013] By adopting the above technical solution, the present invention provides an automatic locking and reversing angle handrail, which has the following beneficial effects: the handrail mounting component is rotatably connected to the handrail body, and a locking tooth, a locking tooth mounting plate, and several springs are provided between the handrail body and the handrail mounting component. The inner side of the handrail body is provided with several locking tooth grooves that are adapted to the locking tooth. The end of the locking tooth passes through the locking tooth mounting plate and abuts against the locking tooth groove. The springs abut against the handrail mounting component and the locking tooth respectively. The outer side of the handrail body is provided with an angle adjustment button that abuts against the handrail mounting component. By setting the springs to abut against the locking tooth and the handrail mounting component respectively, when in use, after adjusting to a suitable angle, the locking tooth can abut against the locking tooth groove on the handrail body, so that the handrail body and the handrail mounting component remain relatively fixed, thereby locking the reversing angle of the handrail body. This allows the handrail to be locked to an angle suitable for the user's body according to their needs, and has a wide range of applications. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention;

[0015] Figure 2 This is a perspective view of the present utility model;

[0016] Figure 3 This is an exploded view of the present invention from another angle;

[0017] Figure 4 This is a perspective view of the present invention from another angle;

[0018] In the diagram, 1-handrail body, 2-handrail mounting piece, 3-locking tooth, 4-tooth mounting plate, 5-spring, 6-tooth groove, 7-angle adjustment button, 8-spring positioning post, 9-first tooth group, 10-second tooth group, 11-first tooth groove, 12-second tooth groove, 13-tooth through hole, 14-reset post, 15-reset post through hole, 16-button latching pin, 17-latching pin through hole. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] like Figure 1-4 As shown, the automatically locking and reversing armrest includes an armrest body 1 and an armrest mounting member 2 disposed on the side of the armrest body 1. The armrest mounting member 2 is rotatably connected to the armrest body 1. A locking tooth 3, a tooth mounting plate 4, and several springs 5 ​​are disposed between the armrest body 1 and the armrest mounting member 2. Several tooth grooves 6 that are adapted to the locking tooth 3 are disposed on the inner side of the armrest body 1. The end of the locking tooth 3 passes through the tooth mounting plate 4 and abuts against the tooth groove 6. The springs 5 ​​abut against the armrest mounting member 2 and the locking tooth 3 respectively. An angle adjustment button 7 that abuts against the armrest mounting member 2 is disposed on the outer side of the armrest body 1. It can be understood that in practical applications, an armrest board is installed on the armrest body 1, and the armrest mounting member 2 is fixedly connected to the office chair.

[0023] Specifically, one side of the locking tooth 3 is provided with several spring positioning posts 8 that are adapted to the spring 5, and the inner side of the handrail mounting part 2 is provided with a spring mounting groove adapted to the spring 5. The other side of the locking tooth 3 is provided with a first tooth group 9 and a second tooth group 10 that are symmetrical to each other. The tooth groove 6 includes a first tooth groove 11 and a second tooth groove 12, which respectively abut against the first tooth group 9 and the second tooth group 10. The tooth mounting plate 4 is provided with a locking tooth 3. The locking tooth 3 has a matching through hole 13, and its end passes through the through hole 13. A reset post 14 is provided on the side of the handrail mounting piece 2. The locking tooth 3, the tooth mounting plate 4, and the handrail body 1 all have reset post through holes 15 that match the reset post 14. The reset post 14 passes through the reset post through hole 15 and abuts against the angle adjustment button 7. The side of the angle adjustment button 7 has several button locking feet 16, and the outer side of the handrail body 1 has several locking foot through holes 17 that match the button locking feet 16. It can be understood that the tooth grooves 6 are arranged obliquely along the arc-shaped edge. When adjusting the angle, each time the locking tooth 3 slides into a tooth groove 6, it represents one setting. The spring force of the spring 5 holds the locking tooth 3 against the tooth groove 6.

[0024] Understandably, this utility model has a reasonable design and unique structure. By setting springs 5 ​​to abut against the locking teeth 3 and the handrail mounting piece 2 respectively, when in use, after adjusting to a suitable angle, the locking teeth 3 can abut against the locking tooth groove 6 on the handrail body 1, so that the handrail body 1 and the handrail mounting piece 2 remain relatively fixed, thereby locking the reverse angle of the handrail body 1. This allows it to be locked to a suitable angle according to the user's needs, and has a wide range of applications.

[0025] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A handrail capable of automatically locking a reverse angle, comprising a handrail body and a handrail mounting arranged on the side of the handrail body, the handrail mounting being rotationally connected with the handrail body, characterized in that: A locking tooth, a locking tooth mounting plate, and several springs are provided between the handrail body and the handrail mounting component. The inner side of the handrail body is provided with several locking tooth grooves that are adapted to the locking tooth. The end of the locking tooth passes through the locking tooth mounting plate and abuts against the locking tooth groove. The springs abut against the handrail mounting component and the locking tooth respectively. The outer side of the handrail body is provided with an angle adjustment button that abuts against the handrail mounting component.

2. The self-locking reverse-angle handrail according to claim 1, characterized in that: One side of the locking teeth is provided with several spring positioning pins that are adapted to the spring, and the inner side of the handrail mounting component is provided with a spring mounting groove that is adapted to the spring. The other side of the locking teeth is provided with a first set of locking teeth and a second set of locking teeth that are symmetrical to each other.

3. The self-locking reverse-angle handrail according to claim 2, characterized in that: The locking tooth groove includes a first locking tooth groove and a second locking tooth groove, and the first locking tooth groove and the second locking tooth groove respectively abut against the first locking tooth group and the second locking tooth group.

4. The self-locking reverse-angle handrail according to claim 1, characterized in that: The locking tooth mounting plate has a locking tooth through hole adapted to the locking tooth, and the end of the locking tooth passes through the locking tooth through hole.

5. The self-locking reverse-angle handrail according to claim 1, characterized in that: The side of the handrail mounting component is provided with a reset post. The locking teeth, the tooth mounting plate and the handrail body are all provided with reset post through holes that are adapted to the reset post. The reset post passes through the reset post through hole and abuts against the angle adjustment button.

6. The self-locking reverse-angle handrail according to claim 1, characterized in that: The side of the angle adjustment button is provided with several button latching feet, and the outer side of the armrest body is provided with several latching foot through holes that are adapted to the button latching feet.

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