Multifunctional chair armrest

Abstract

A multifunctional chair armrest comprises a base, a supporting arm and an armrest body, the bottom end of the supporting arm is rotationally installed on the base through a rotating seat, and the supporting arm can swing left and right around a first rotating shaft perpendicular to the horizontal plane and can also swing up and down around a second rotating shaft parallel to the horizontal plane; the handrail comprises a handrail cap and a handrail seat, the handrail seat is rotationally installed at the top end of the supporting arm, front-back dip angle adjustment can be achieved around a third rotating shaft, and the handrail cap can be adjusted in multiple directions. An elastic mechanism is arranged between the supporting arm and the rotating seat and provides elastic supporting force for upward rotation. A positioning mechanism is arranged at the joint of the armrest seat and the supporting arm, so that the armrest can be stably kept at a specific inclination angle. The adjustable armrest has various adjusting functions, greatly meets the diversified requirements of different users on arm supporting angles and positions, effectively improves the use comfort level, is ingenious in design, solves the problems that a traditional armrest is single in adjusting angle, the spacing distance between armrests on the two sides is fixed and the like, and is suitable for people with different body types.

Description

TECHNICAL FIELD

[0001] The utility model relates to chair handrail technical field, concretely relates to a multifunctional chair handrail. BACKGROUND

[0002] As an important part of the chair, the design of the chair handrail not only affects the overall appearance of the chair, but also relates to the comfort and use experience of the user. With the diversification of modern work and living environment, and the increasing emphasis on healthy office and leisure life, the traditional handrail design has been difficult to meet the multi-angle adjustment needs of users when using the chair handrail.

[0003] For example, the adjustable handrail disclosed in Chinese utility model patent application No. 202122677349.7, which sets the lifting mechanism on the base, the lifting mechanism is used to move the hand along the vertical direction, and the sliding mechanism is set on the base, the sliding mechanism is used to move the hand along the length direction of itself. Thus, to some extent, the use needs of different users for different positions of the handrail can be met.

[0004] However, the handrail structure with the above structure still has the following defects:

[0005] 1. After adjusting the height of the handrail along the vertical direction, the hand is always in a horizontal state, and the angle cannot be adjusted according to the supporting height of the arm, so the supporting method of the arm is relatively single, which can easily lead to a decrease in comfort during supporting;

[0006] 2. Since the base is fixedly installed on the seat, the interval distance of the handrails on both sides of the seat is fixed and cannot be adjusted. For different groups of users, the width of their shoulders will be different, so the distance between the two arms after sitting down will also be different, which can only make people with a suitable body type comfortable to sit on the chair, thus having certain limitations. INVENTION CONTENTS

[0007] In order to overcome the shortcomings of the prior art, the utility model provides a multifunctional chair handrail.

[0008] The technical scheme adopted by the utility model to solve its technical problems is:

[0009] The utility model discloses a multifunctional chair handrail, including the base for fixing on the seat, the support arm connected in the base top and the handrail connected in the support arm top, the bottom of support arm rotatory connection has the rotary seat, and the support arm is rotatory installation on the base through rotary seat, and the first pivot between rotary seat and base is perpendicular to the horizontal plane, and the second pivot between support arm and rotary seat is parallel to the horizontal plane, the handrail includes the handrail cap of top and the handrail seat of bottom, the handrail cap movable installation is in the top of handrail seat, the bottom of handrail seat rotatory installation is in the top of support arm, and the third pivot between handrail seat and support arm is parallel to second pivot.

[0010] In the utility model, the elastic mechanism is arranged between the support arm and the rotary seat, the elastic mechanism includes the spring seat fixed on the top of the rotary seat, the torsion spring installed on the spring seat and the column rod fixed on the support arm, a fixed block is arranged on the top of the rotary seat, a movable block hinged with the fixed block is arranged on the bottom of the support arm, the spring seat is wrapped and installed on the outside of the fixed block, the column rod is fixedly connected with the movable block and extends to one side, the center end of the torsion spring is embedded on the center of the side close to the column rod of the spring seat, and the tail end of the torsion spring is hooked on the extending end of the column rod.

[0011] Further, the movable block is composed of a plurality of connecting pieces with flaky structure and same structure, the connecting piece includes a fixed end and a hinged end, when the plurality of connecting pieces are stacked, the fixed end is fixed on the support arm, and the hinged end is hinged on the fixed block.

[0012] Further, a cover is arranged on the outside of the movable block.

[0013] In the utility model, the support arm includes two support plates made of metal and an outer shell correspondingly covering the outside of the two support plates, the two support plates are symmetrically connected through the connecting column, the outer shell wraps the two support plates, the bottom end of the two support plates clamps the fixed end of the movable block and is fixed through the bolt, and the top end of the two support plates clamps the handrail seat and is fixed through the bolt.

[0014] In the utility model, a positioning mechanism is further arranged at the connection between the handrail seat and the support arm, the positioning mechanism includes a positioning block fixed on the top end of the support arm, a lever movably installed in the handrail seat and a return spring abutting against the lever, a plurality of positioning grooves circumferentially arranged around the third pivot are arranged on the positioning block, one end of the lever is hinged in the handrail seat, the other end extends from the front end of the handrail seat and is used for pushing, a clamping block downwardly extending is further arranged on the bottom of the lever, the clamping block is clamped into the positioning groove to form positioning, and the return spring abuts between the lever and the top surface in the handrail seat.

[0015] Further, the handrail seat is internally provided with an upwardly open mounting cavity, and a seat cover covering the mounting cavity, and the positioning mechanism is mounted in the mounting cavity.

[0016] In the utility model, the handrail cap comprises a handrail support and a soft pad mounted on the handrail support, the handrail support is internally hollow and is provided with an adjusting mechanism, and the adjusting mechanism enables the handrail cap to realize multiple adjusting functions of forward and backward, left and right and rotation angle.

[0017] The utility model has the advantages and beneficial effects that:

[0018] In the adjusting function, the supporting arm can swing left and right around the first rotation shaft perpendicular to the horizontal plane and can swing up and down around the second rotation shaft parallel to the horizontal plane, the handrail seat can realize forward and backward inclination angle adjustment around the third rotation shaft parallel to the second rotation shaft, and the handrail cap itself can realize multidirectional adjustment of forward and backward, left and right and rotation angle, greatly meeting the diversified needs of different users for the arm supporting angle and position and effectively improving the use comfort. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described below in combination with the drawings and embodiments:

[0020] Figure 1 It is a structure schematic view of the handrail in the embodiment;

[0021] Figure 2 It is a disassembled view of the handrail in the embodiment;

[0022] Figure 3 It is a structure schematic view of the elastic mechanism in the embodiment;

[0023] Figure 4 It is a structure schematic view of the movable block in the embodiment;

[0024] Figure 5 It is a structure schematic view of the positioning mechanism in the embodiment;

[0025] Figure 6 It is a structure schematic view of the handrail cap in the embodiment. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below, and the utility model is not limited to the following embodiments.

[0027] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, top, bottom, inner, outer, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if the embodiments of the utility model involve descriptions of "first" or "second" and the like, the descriptions of "first" or "second" and the like are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary technical personnel in the art, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.

[0029] As shown in Figures 1 to 6 The embodiments disclose a multifunctional chair armrest, which comprises a base 1 for being fixed on a chair seat, a supporting arm 2 connected at the top end of the base 1 and an armrest 3 connected at the top end of the supporting arm 2, the bottom end of the supporting arm 2 is rotatably connected with a rotating base 4, the supporting arm 2 is rotatably installed on the base 1 through the rotating base 4, the first rotation shaft A between the rotating base 4 and the base 1 is perpendicular to the horizontal plane, so that the supporting arm 2 can drive the armrest 3 to swing left and right around the first rotation shaft A, in addition, the second rotation shaft B between the supporting arm 2 and the rotating base 4 is parallel to the horizontal plane, so that the supporting arm 2 can also drive the armrest 3 to swing up and down around the second rotation shaft B, further, the armrest 3 comprises an armrest cap 31 at the top and an armrest base 32 at the bottom, the armrest cap 31 is movably installed at the top of the armrest cap 31, the bottom of the armrest base 32 is rotatably installed at the top end of the supporting arm 2, and the third rotation shaft C between the armrest base 32 and the supporting arm 2 is parallel to the second rotation shaft B, so that the armrest cap 31 can be adjusted by itself, and the front and rear inclination angles of the armrest cap 31 can also be adjusted by the armrest base 32 around the third rotation shaft C.

[0030] In this embodiment, the support arm 2 and the rotating seat 4 are provided with an elastic mechanism 40, which provides the support arm 2 with an elastic support force in the rotating direction, thereby improving the comfort of the handrail 3. The elastic mechanism 40 comprises a spring seat 401 fixed on the top of the rotating seat 4, a torsion spring 402 installed on the spring seat 401, and a column 403 fixed on the support arm 2. Specifically, a fixed block 41 is arranged on the top of the rotating seat 4, and a movable block 21 is arranged on the bottom end of the support arm 2 and hinged to the fixed block 41. The spring seat 401 is wrapped around the outside of the fixed block. The column 403 is fixedly connected to the movable block 21 and extends to one side. The center end of the torsion spring 402 is embedded in the center of the spring seat 401 near the column 403, and the end of the torsion spring 402 is hooked to the extended end of the column 403. Thus, when the support arm 2 is pressed down around the first rotation axis A, the support arm 2 drives the torsion spring 402 to twist and generate elastic potential energy through the column 403, thereby forming an elastic support.

[0031] Further, in order to improve the structural strength of the support arm 2 and reduce the production cost, the movable block 21 is stacked by a plurality of connecting pieces 210 with the same structure. The connecting piece 210 comprises a fixed end 211 and a hinged end 212. When the plurality of connecting pieces 210 are stacked, the fixed end 211 is fixed on the support arm 2, and the hinged end 212 is hinged to the fixed block 41. When it is necessary to increase the connection strength or change the connection structure, only the number of connecting pieces 210 needs to be simply increased or decreased, without the need to redesign the entire connecting piece.

[0032] Further, in order to improve the appearance of the connection between the support arm 2 and the rotating seat 4, a cover 42 is further arranged on the outside of the movable block 21, which covers the hinged end 212 of the movable block 21 and wraps the plurality of stacked connecting pieces 210.

[0033] Further, the support arm 2 comprises two support plates 22 made of metal and an outer shell 23 corresponding to the two support plates 22. The two support plates 22 are symmetrically connected by a connecting column. The outer shell 23 wraps the two support plates 22. The bottom end of the two support plates 22 clamps the fixed end 211 of the movable block 21 and is fixed by a bolt. The top end of the two support plates 22 clamps the handrail seat 32 and is fixed by a bolt.

[0034] In this embodiment, in order to enable the handrail 3 to be kept at a specific inclination angle, a positioning mechanism 33 is further arranged at the connection between the handrail seat 32 and the support arm 2, the positioning mechanism 33 comprising a positioning block 331 fixed at the top end of the support arm 2, a push rod 332 movably arranged inside the handrail seat 32, and a reset spring 333 abutting against the push rod 332, the positioning block 331 being provided with a plurality of positioning grooves 334 arranged circumferentially around the third rotation axis C, one end of the push rod 332 being hingedly connected inside the handrail seat 32 and the other end extending out of the front end of the handrail seat 32 for pushing, the bottom of the push rod 332 being further provided with a clamping block 335 extending downward, the clamping block 335 being clamped into the positioning groove 334 to form positioning, in addition, the reset spring 333 abuts between the push rod 332 and the top surface inside the handrail 3, the reset spring 333 providing a certain downward pressure to the clamping block 335 to improve the stability of the positioning mechanism 33; when it is desired to adjust the inclination angle of the handrail 3, the clamping block 335 can be caused to disengage from the positioning groove 334 by pushing the push rod 332 upward, then the handrail 3 is rotated to cause the clamping block 335 to be clamped into the positioning groove 334 at a different position, and then the push rod 332 is released, so that positioning can be performed at different inclination angles. Specifically, the handrail seat 32 is further provided with an installation cavity opening upward, and a seat cover 34 covering the installation cavity, and the positioning mechanism 33 is arranged in the installation cavity.

[0035] In this embodiment, the handrail cap 31 comprises a handrail support 311 and a soft pad 312 arranged on the handrail support 311, the handrail support 311 being hollow inside and provided with an adjusting mechanism, the adjusting mechanism enabling the handrail cap 31 to realize multiple adjusting functions of forward and backward, left and right, and rotation angle, and the specific structure of the adjusting mechanism can refer to the multi-directional adjusting handrail disclosed in the Chinese patent application No. CN201611102233.8, and will not be described in more detail here.

[0036] The above described in the specification of the present application is only an example of the present application, and those skilled in the art can make various modifications or supplements or use similar ways to replace the described specific embodiments, as long as they do not deviate from the content of the specification of the present application or exceed the scope defined by the claims, and should belong to the protection scope of the present application.

Claims

1. A multifunctional armrest of a chair, comprising a base (1) for fastening to a seat, a support arm (2) connected to the top end of the base (1) and an armrest (3) connected to the top end of the support arm (2), characterized in that, The bottom end of the support arm (2) is rotatably connected with a rotating seat (4), and the support arm (2) is rotatably installed on the base (1) through the rotating seat (4), the first rotation axis (A) between the rotating seat (4) and the base (1) is perpendicular to the horizontal plane, and the second rotation axis (B) between the support arm (2) and the rotating seat (4) is parallel to the horizontal plane; the handrail (3) comprises a handrail cap (31) at the top and a handrail seat (32) at the bottom, the handrail cap (31) is movably installed at the top of the handrail seat (32), the bottom of the handrail seat (32) is rotatably installed at the top end of the support arm (2), and the third rotation axis (C) between the handrail seat (32) and the support arm (2) is parallel to the second rotation axis (B).

2. The multi-functional chair armrest according to claim 1, wherein, The support arm (2) and the rotating seat (4) are provided with an elastic mechanism (40), the elastic mechanism (40) comprises a spring seat (401) fixed at the top of the rotating seat (4), a torsion spring (402) installed on the spring seat (401) and a column rod (403) fixed on the support arm (2); a fixed block (41) is arranged at the top of the rotating seat (4), an activity block (21) is arranged at the bottom end of the support arm (2) and hinged with the fixed block (41), the spring seat (401) is wrapped and installed on the outer side of the fixed block (41), the column rod (403) is fixedly connected with the activity block (21) and extends to one side, the center end of the torsion spring (402) is embedded on the spring seat (401) at the center close to the column rod (403), and the end of the torsion spring (402) is hooked on the extending end of the column rod (403).

3. The multi-functional chair armrest according to claim 2, wherein, The activity block (21) is composed of a plurality of sheet-shaped connecting pieces (210) with the same structure, the connecting piece (210) comprises a fixed end (211) and a hinged end (212), when the plurality of connecting pieces (210) are stacked, the fixed end (211) is fixed on the support arm (2), and the hinged end (212) is hinged on the fixed block (41).

4. The multi-functional chair armrest according to claim 3, wherein, A cover (42) is further arranged on the outer side of the activity block (21), and the cover (42) is sleeved on the hinged end (212) of the activity block (21).

5. The multi-functional chair armrest of claim 1, wherein, The support arm (2) comprises two support plates (22) made of metal and an outer shell (23) corresponding to the outer sides of the two support plates (22), the two support plates (22) are symmetrically connected through connecting columns, the outer shell (23) wraps the two support plates (22), the bottom ends of the two support plates (22) clamp the fixed end (211) of the activity block (21) and are fixed through bolts, and the top ends of the two support plates (22) clamp the handrail seat (32) and are fixed through bolts.

6. The multi-functional chair armrest of claim 1, wherein, A positioning mechanism (33) is further arranged at the connection between the armrest seat (32) and the support arm (2), which comprises a positioning block (331) fixed at the top end of the support arm (2), a push rod (332) movably arranged in the armrest seat (32), and a reset spring (333) abutting against the push rod (332). The positioning block (331) is provided with a plurality of positioning grooves (334) arranged circumferentially around the third rotation axis (C). One end of the push rod (332) is hingedly connected to the inside of the armrest seat (32), and the other end thereof extends from the front end of the armrest seat (32) for pushing. The bottom of the push rod (332) is further provided with a downwardly extending clamping block (335) which is clamped into the positioning groove (334) to form positioning. The reset spring (333) abuts between the push rod (332) and the top surface of the inside of the armrest seat (32).

7. The multi-functional chair armrest according to claim 6, wherein, An upwardly open mounting cavity is further arranged in the armrest seat (32), and a seat cover (34) is arranged to cover the mounting cavity. The positioning mechanism (33) is arranged in the mounting cavity.

8. The multi-functional chair armrest of claim 1, wherein, The armrest cap (31) comprises an armrest holder (311) and a soft pad (312) arranged on the armrest holder (311). The armrest holder (311) is hollow and is provided with an adjusting mechanism. The adjusting mechanism enables the armrest cap (31) to realize multiple adjusting functions of forward and backward, left and right, and rotation angle.

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