CN212090145U

CN212090145U - Massage armchair seat back adjustment mechanism

Info

Publication number: CN212090145U
Application number: CN201922195541.5U
Authority: CN
Inventors: 江军; 阚广奇; 廖祎辉
Original assignee: Ningbo Guangxing Health Technology Co ltd
Current assignee: Ningbo Guangxing Health Technology Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-12-08
Anticipated expiration: 2029-12-10

Abstract

The utility model discloses a chair seat backrest adjusting mechanism of a massage chair, which comprises a bottom frame, a chair frame and a driving device, wherein the chair frame is movably connected with the front end of the bottom frame through a pull rod, the rear end of the bottom frame is provided with a fixed pulley for supporting the chair frame, and the chair frame is provided with a chute matched with the fixed pulley in a sliding way; when the driving device drives the chair frame to rotate relative to the bottom frame, the sliding groove of the chair frame synchronously realizes rotation and sliding by taking the fixed pulley as a fulcrum under the limiting action of the pull rod. The utility model can make the chair backrest rotate and simultaneously assist in sliding movement, so as to reduce the variation deviation of the position of the center of gravity of the user, save space and have better use experience; the sliding fit of the sliding groove and the fixed pulley is adopted, so that the massage chair is more reliable to use, and the noise is reduced.

Description

Massage armchair seat back adjustment mechanism

Technical Field

The utility model belongs to the technical field of massage equipment, concretely relates to massage armchair seat support back adjustment mechanism.

Background

The massage chair comprises a base and a chair seat, wherein the chair seat is provided with a chair seat backrest, and the chair seat and the base of the common massage chair can be rotatably connected for the convenience of switching sitting postures. Generally, in the prior art, an electric push rod is adopted to drive a seat back to rotate and adjust relative to a seat, for example, see a massage chair disclosed in CN206587141U, which includes a seat frame, a back frame, a bottom frame and a driving device, wherein the back frame and the bottom frame of the seat back are rotatably connected through a rotating shaft, that is, the seat back of the massage chair is adjusted by rotating an arc with the rotating shaft as an axis, the center of gravity position of a user is changed greatly during adjustment, and occupies a large space, the experience feeling of use is poor, and the rotary abrasion of the rotating shaft easily damages the massage chair, resulting in noise and other problems.

Disclosure of Invention

In view of the above-mentioned deficiencies of the prior art, the present invention provides a chair seat backrest adjusting mechanism for a massage chair, which can make the chair seat backrest rotate and simultaneously assist in sliding movement, so as to reduce the variation deviation of the position of the center of gravity of the user, save space and have better use experience; the massage chair further aims to adopt the sliding fit of the sliding groove and the fixed pulley, so that the massage chair is more reliable to use, and the noise is reduced.

In order to achieve the above purpose, the utility model adopts the technical scheme that.

A chair seat backrest adjusting mechanism of a massage chair comprises a bottom frame, a chair frame and a driving device, wherein the chair frame is movably connected with the front end of the bottom frame through a pull rod, the rear end of the bottom frame is provided with a fixed pulley for supporting the chair frame, and the chair frame is provided with a sliding chute matched with the fixed pulley in a sliding manner; when the driving device drives the chair frame to rotate relative to the bottom frame, the sliding groove of the chair frame synchronously realizes rotation and sliding by taking the fixed pulley as a fulcrum under the limiting action of the pull rod.

Furthermore, the driving device is an electric push rod, the cylinder body end of the electric push rod is movably hinged with the bottom frame, and the piston rod of the electric push rod is movably hinged with the chair frame. The chair frame is equipped with first articulated seat, and the chassis is equipped with the articulated seat of second, the both ends of connecting rod are articulated with the articulated seat activity of first articulated seat and second respectively.

Furthermore, the sliding groove is obliquely arranged along the inclination direction of the chair backrest. The chair frame comprises two support rods which are arranged in parallel, and the sliding groove erected on the fixed pulley is formed between the two support rods.

The fixed pulley is erected on the underframe through the upright post, and is made of wear-resistant materials.

After the technical scheme is adopted, compared with the prior art, the utility model the advantage that has is.

The utility model discloses an adjustment mechanism can make the seat support back be assisted with the motion of sliding in the pivoted to reduce user's focus position and change the deviation, have better use and experience. Specifically, the chair frame is movably connected with the front end of the underframe through a pull rod, the pull rod and the fixed pulley are used for supporting the chair frame above the underframe, and the chair frame can rotate relative to the underframe under the driving of the driving device. Compared with the mode that uses the axis of rotation to rotate the regulation as the axle center among the prior art, the utility model discloses a chair frame receives the limiting displacement of pull rod on the one hand, and on the other hand receives the guide effect of fixed pulley through its spout again for when the chair frame rotates for the chassis, the spout of chair frame rotates and the compound motion that slides for the fixed pulley simultaneously, and the regulative mode of this kind of seat support back has better user experience, and practices thrift the space.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, 1, an underframe, 2, a chair frame, 3, an electric push rod, 4, a pull rod, 5, a fixed pulley, 6, a sliding chute, 7, a first hinged seat, 8, a second hinged seat and 9, a stand column are arranged.

Detailed Description

The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.

Referring to fig. 1, the chair seat backrest adjusting mechanism of the massage chair comprises a bottom frame 1, a chair frame 2 and a driving device, wherein the driving device is an electric push rod 3, the cylinder body end of the electric push rod 3 is movably hinged with the bottom frame 1, and the piston rod of the electric push rod 3 is movably hinged with the chair frame 2. Chair frame 2 passes through pull rod 4 swing joint with the front end of chassis 1, specifically, chair frame 2 is equipped with first articulated seat 7, and chassis 1 is equipped with the articulated seat 8 of second, the both ends of connecting rod 4 are articulated with first articulated seat 7 and the articulated seat 6 activity of second respectively. The rear end of chassis 1 is provided with fixed pulley 5 that is used for supporting chair frame 2, fixed pulley 5 erects through stand 9 on the chassis 1, just fixed pulley 5 is wear-resisting material and makes. The chair frame 2 is provided with a sliding chute 6 which is matched with the fixed pulley 5 in a sliding way; the slide groove 6 is arranged obliquely along the inclination direction of the backrest of the chair seat. The chair frame 2 comprises two support rods which are arranged in parallel, and a sliding groove 6 which is erected on the fixed pulley 5 is formed between the two support rods. The sliding chute 6 is in sliding fit with the fixed pulley 5, the structure is stable, the massage chair is more reliable to use, and the noise of rotation adjustment of the chair seat and the backrest can be reduced.

When the driving device drives the chair frame 2 to rotate relative to the underframe 1, the chair frame 2 enables the sliding groove 6 of the chair frame 2 to synchronously rotate and slide by taking the fixed pulley 5 as a fulcrum under the limiting action of the pull rod 4. Specifically, the chair frame 2 is movably connected with the front end of the underframe 1 through a pull rod 4, the pull rod 4 and the fixed pulley 5 are used together for supporting the chair frame 2 above the underframe 1, and the chair frame 2 can rotate relative to the underframe 1 under the driving of the electric push rod 3. Wherein, chair frame 2 receives the limiting displacement of pull rod 4 on the one hand, and on the other hand receives the guide effect of fixed pulley 5 through its spout 6 again for chair frame 2 is when rotating for chassis 1, and the spout 6 of chair frame 2 rotates and the compound motion that slides for fixed pulley 5 simultaneously, and this kind of seat back's regulation mode has better user experience, and practices thrift the space.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides a massage armchair seat back adjustment mechanism, includes chassis (1), chair frame (2) and drive arrangement, its characterized in that: the chair frame (2) is movably connected with the front end of the bottom frame (1) through a pull rod (4), the rear end of the bottom frame (1) is provided with a fixed pulley (5) for supporting the chair frame (2), and the chair frame (2) is provided with a sliding chute (6) in sliding fit with the fixed pulley (5); when the driving device drives the chair frame (2) to rotate relative to the bottom frame (1), the chair frame (2) enables the sliding groove (6) of the chair frame (2) to synchronously rotate and slide by taking the fixed pulley (5) as a fulcrum under the limiting action of the pull rod (4).

2. The massage chair seat back adjustment mechanism of claim 1, wherein: the driving device is an electric push rod (3), the cylinder end of the electric push rod (3) is movably hinged with the bottom frame (1), and the piston rod of the electric push rod (3) is movably hinged with the chair frame (2).

3. The massage chair seat back adjustment mechanism of claim 1, wherein: the sliding groove (6) is obliquely arranged along the inclination direction of the chair backrest.

4. The massage chair seat back adjustment mechanism of claim 1, wherein: the chair frame (2) comprises two support rods which are arranged in parallel, and a sliding groove (6) which is erected on the fixed pulley (5) is formed between the two support rods.

5. The massage chair seat back adjustment mechanism of claim 1, wherein: chair frame (2) are equipped with first articulated seat (7), and chassis (1) is equipped with the articulated seat of second (8), the both ends of pull rod (4) are articulated with first articulated seat (7) and the articulated seat of second (8) activity respectively.

6. The massage chair seat back adjustment mechanism of claim 1, wherein: the fixed pulley (5) is erected on the underframe (1) through an upright post (9), and the fixed pulley (5) is made of wear-resistant materials.