CN219396732U

CN219396732U - Comfortable ergonomic chair

Info

Publication number: CN219396732U
Application number: CN202223378909.XU
Authority: CN
Inventors: 吕拥锋
Original assignee: Zhejiang Anji Yongfeng Furniture Co ltd
Current assignee: Zhejiang Anji Yongfeng Furniture Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-07-25
Anticipated expiration: 2032-12-16

Abstract

The utility model discloses a comfortable ergonomic chair, and relates to the field of ergonomic chairs. The back frame is internally provided with a back cushion, and a supporting device capable of adjusting the arch radian of the lower part of the back cushion is arranged between the back frame and the back cushion. The support device capable of adjusting the arch radian of the lower part of the back cushion is arranged between the back frame and the back cushion, the support device is provided with the grid frame capable of moving back and forth relative to the back frame, the grid frame supports the lower part of the back cushion and adjusts the arch radian of the lower part of the back cushion, so that the back cushion is more attached to the waist of a user, the grid frame has elasticity, the most closely attached support can be provided for the user, the waist back can be more relaxed and comfortably attached to the waist, and the vertebra can be relaxed, thereby relieving the fatigue of the vertebra.

Description

Comfortable ergonomic chair

Technical Field

The utility model discloses a comfortable ergonomic chair, and relates to the field of ergonomic chairs.

Background

The known ergonomic chair utilizes a chair back that conforms to the curvature of the human body, allowing the user to relax the back while sitting,

is more comfortable, thereby avoiding the strain of waist and back and keeping healthy.

Most ergonomic chairs are designed in size, mostly based on standard body shapes, or sized for different weights. But still cannot be made to fit the size of each individual, there is a need to solve this problem to improve the comfort of the ergonomic chair.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a comfortable ergonomic chair.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a comfortable ergonomic chair is equipped with back frame, its characterized in that: the back frame is internally provided with a back cushion, and a supporting device capable of adjusting the arch radian of the lower part of the back cushion is arranged between the back frame and the back cushion.

Further, strutting arrangement includes rack, wire rope and coiling mechanism, and rack laminating back of the body fills up, and wire rope is equipped with at least one, and wire rope end is fixed in one side of back of the body frame, and the other end passes through behind the rack and is fixed on coiling mechanism after bypassing the back of the body frame opposite side, and coiling mechanism winds wire rope and can make wire rope tighten gradually, makes the rack can advance gradually and then drives the arch radian that the back of the body fills up lower part forward and change the back of the body.

Further, the rack includes two dead levers that the symmetry set up and sets up a plurality of snakelike springs between two dead levers, and snakelike spring both ends are equipped with connecting portion, and connecting portion at each snakelike spring both ends are interlude respectively to two dead levers, and connecting portion should be interference fit with the dead lever, and the dead lever both ends are equipped with the location portion of buckling.

Further, the winding device comprises a winding shaft arranged on the side face of the back frame, the winding shaft comprises a movable shaft rod, a limiting disc and an outer connecting rod which are integrally arranged, the limiting disc is arranged among the movable shaft rod, the limiting disc and the outer connecting rod, and the movable shaft rod and the outer connecting rod are coaxially arranged; the back frame is provided with a shaft sleeve and an end cover, the shaft sleeve is fixed on the back frame, a movable shaft rod of the winding shaft is inserted into the shaft sleeve and can rotate in the shaft sleeve, the end cover can axially move along the shaft sleeve, the end cover is sleeved on an outer connecting rod and is fixed with the shaft sleeve, the end cover and a limiting disc form limiting fit to prevent the movable shaft rod from separating from the shaft sleeve, a knob is fixed on the outer connecting rod, a circle of positioning rod is arranged on the limiting disc around the movable shaft, a steel wire rope penetrates into the end cover and can be wound on the positioning rod, and a positioning slot matched with the positioning rod is arranged on the periphery of the shaft sleeve.

Further, a hook and a connector are arranged, the hook comprises a first hook and a second hook, the first hook is hooked on one side of the back frame, and the end part of the steel wire rope is fixedly connected with the tail end of the first hook;

the connector is clamped on a fixed rod of the net rack, and the back of the connector is provided with a wire passing channel for a steel wire rope to pass through;

the second hook comprises a hook part and a sleeve part, the hook part is hooked on the other side of the back frame, and the sleeve part is provided with a through hole for the steel wire rope to pass through;

the wire rope passes through the tail end of the first hook, the joint at the back of the net rack, the sleeve part of the second hook and the back frame, and finally passes through the inner part of the entering shaft sleeve to be wound on the winding shaft.

Further, a decorative layer is sleeved outside the back frame and the back pad.

Furthermore, a neck pillow is arranged above the back cushion, a waist rest is arranged below the back cushion, and the neck pillow and the waist rest are made of elastic materials.

Further, the back cushion, the neck pillow and the waist rest are of an integrated structure.

Further, the top of the neck pillow is provided with a headrest, the headrest is made of metal elastic sheets and silica gel, the metal elastic sheets are embedded in the silica gel, and the metal elastic sheets are in an inverted V shape.

The beneficial effects are that: the support device capable of adjusting the arch radian of the lower part of the back cushion is arranged between the back frame and the back cushion, the support device is provided with the grid frame capable of moving back and forth relative to the back frame, the grid frame supports the lower part of the back cushion and adjusts the arch radian of the lower part of the back cushion, so that the back cushion is more attached to the waist of a user, the grid frame has elasticity, the most closely attached support can be provided for the user, the waist back can be more relaxed and comfortably attached to the waist, and the vertebra can be relaxed, thereby relieving the fatigue of the vertebra.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective side view of the present utility model;

FIG. 3 is a schematic view of the internal structure of the back frame of the present utility model;

FIG. 4 is a schematic view of the back structure of the grid of the present utility model;

FIG. 5 is an enlarged view of FIG. 4 at A;

FIG. 6 is a schematic view of an embodiment of a winding apparatus of the present utility model;

FIG. 7 is a schematic view of a structural exploded view of one embodiment of the winding device of the present utility model;

FIG. 8 is a schematic view of a winding shaft of the winding device of the present utility model;

reference numerals illustrate: a back frame 1;

a seat frame 2;

a back cushion 3, a neck pillow 31 and a waist rest 32;

a headrest 4;

the net rack 5, the fixed rod 51, the positioning part 511, the serpentine spring 52 and the connecting part 521;

a wire rope 6;

winding shaft 71, movable shaft lever 711, limiting disc 712, outer connecting rod 713, positioning rod 714, shaft sleeve 72, positioning slot 721, slot 722, end cover 73 and knob 74;

a first hook 8;

a second hook 9, a hook portion 91, a sleeve portion 92;

a joint 10.

Detailed Description

The utility model is further described below with reference to the drawings and specific examples. Those of ordinary skill in the art will be able to implement the utility model based on these descriptions. In addition, the embodiments of the present utility model referred to in the following description are typically only some, but not all, embodiments of the present utility model. Therefore, all other embodiments, which can be made by one of ordinary skill in the art without undue burden, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

Referring to fig. 1 to 8, a comfortable ergonomic chair includes a back frame 1 and a seat frame 2, wherein the back frame 1 can be adjusted in angle with respect to the seat frame 2 so that the chair can be adjusted according to the sitting posture of a user, and a specific adjusting structure can refer to the prior art.

The back frame 1 and the seat frame 2 are respectively provided with a cushion and a back cushion 3, and the cushion and the back cushion 3 can be made of elastic materials such as memory cotton, so as to reduce the compression area of the back of the buttocks and the acupoints at the stressed positions and promote the blood circulation of the back of the buttocks. And be equipped with neck pillow 31 in the top of back up 3, be equipped with waist rest 32 on the below of back up 3, neck pillow 31 and waist rest 32 the same can be made of elastic material such as memory cotton, and neck pillow 31 can laminate neck when the user lies down backward and have supported it to alleviate neck fatigue, and waist rest 32 can support the natural bending of backbone, slows down waist fatigue.

In this embodiment, the back pad 3, the neck pillow 31 and the lumbar support 32 may be made of memory cotton, so that the back pad, the neck pillow and the lumbar support 32 may be integrally formed by one-step molding, and the production cost is reduced.

In this embodiment, the top of neck pillow 31 is equipped with headrest 4, and the travelling comfort when the headrest 4 can support the head in order to improve the lying to headrest 4 adopts metal shrapnel and silica gel to make, and metal shrapnel embedding is in the silica gel, and metal shrapnel is used for the design, makes headrest 4 form the structure of an inverted V type, and it has fine elasticity, makes the neck laminate neck pillow 31 more, and outer silica gel can make headrest 4 have better sense of touch.

In this embodiment, a supporting device capable of adjusting the arch radian of the lower part of the back cushion 3 is arranged between the back frame 1 and the back cushion 3, the supporting device is provided with a net frame 5 capable of moving back and forth relative to the back frame 1, the net frame 5 supports the lower part of the back cushion 3 and adjusts the arch radian of the lower part of the back cushion 3, so that the back cushion 3 is more attached to the waist of a user, the net frame 5 has elasticity, the most closely attached support can be provided for the user, the waist can be more relaxed and comfortable to attach to the waist, and the vertebra can be relaxed, thereby relieving the fatigue of the vertebra.

In this embodiment, the net rack 5 includes two symmetrically disposed fixing rods 51 and a plurality of serpentine springs 52 disposed between the two fixing rods 51, two ends of each serpentine spring 52 are formed with a connecting portion 521 after being crimped by a machine, when assembled, the fixing rods 51 are straight rods, so that the fixing rods 51 can easily penetrate through the connecting portions 521 of each serpentine spring 52, the connecting portions 521 and the fixing rods 51 are in interference fit, the net rack 5 can move on the fixing rods 51 under the action of large external force when assembled, so that the serpentine springs 52 are distributed at certain intervals, but after being assembled, the serpentine springs 52 can be fixed at positions where the serpentine springs are located by friction force generated by the interference fit of the connecting portions 521 and the fixing rods 51, and after being assembled, the two ends of each fixing rod 51 are bent to form positioning portions 511, so as to avoid the serpentine springs 52 from falling off from the fixing rods 51.

The supporting device further comprises a steel wire rope 6 and a winding device, wherein the end part of the steel wire rope 6 is fixed on one side of the back frame 1, the other end of the steel wire rope passes through the back of the net frame 5 and bypasses the other side of the back frame 1 and then is fixed on the winding device, the winding device can wind the steel wire rope 6, so that the steel wire rope 6 is gradually tightened, the net frame 5 can gradually move forward and then drive the lower part of the back cushion 3 to move forward, and the arch radian of the back cushion 3 is changed. In the conventional state, the steel wire rope 6 is loose, so that the back cushion 3 can be mostly embedded in the back frame 1, after the steel wire rope 6 is tightened, the back cushion 3 is mostly ejected out of the back frame 1 by the net frame 5, and the arch radian is gradually changed in the changing process from loose to tight. The adjusting method has the advantages of convenience and simplicity.

It should be noted that, the back pad 3 is ejected out of the back frame 1 but is not separated from the back frame 1, so that a structure may be adopted in which two sides of the back pad 3 are adhered to the back frame 1, or a decorative layer is sleeved outside the whole back pad 3 of the back frame 1, and the decorative layer may be made of leather, cloth, or the like.

As an alternative embodiment, the winding device may employ a motorized winch to effect winding of the wire rope 6. However, in view of the inconvenience of electricity, it is preferable that a winding shaft 71 is provided at a side surface of the back frame 1 in the present embodiment, and the winding shaft 71 winds the wire rope 6 by a manual operation. Specifically, the winding shaft 71 includes a movable shaft 711, a limiting disc 712 and an outer connecting rod 713 with an integral structure, the limiting disc 712 is arranged between the movable shaft 711, the limiting disc 712 and the outer connecting rod 713, and the movable shaft 711 and the outer connecting rod 713 are coaxially arranged; the back frame 1 is provided with a shaft sleeve 72 and an end cover 73 which are arranged corresponding to the winding shaft 71, the shaft sleeve 72 is fixed on the back frame 1, a movable shaft lever 711 of the winding shaft 71 is inserted into the shaft sleeve 72 and can rotate in the shaft sleeve 72, the end cover 73 is sleeved on an outer connecting rod 713 and is fixed with the shaft sleeve 72, the end cover 73 and a limiting disc 712 form limiting fit for preventing the movable shaft lever 711 from being separated from the shaft sleeve 72, a knob 74 is fixed on the outer connecting rod 713, a steel wire rope 6 can penetrate into the end cover 73, a circle of positioning rod 714 is arranged on the limiting disc 712 around the movable shaft lever 711, the steel wire rope 6 penetrates into the end cover 73 and can be wound on the positioning rod 714, a positioning slot 721 matched with the positioning rod 714 is arranged on the periphery of the shaft sleeve 72, the movable shaft lever 711 can be inserted into the positioning slot 721 along the shaft sleeve 72 to enable the movable shaft lever 711 to be fixed and not to rotate any more, therefore after the arc of the back cushion 3 is adjusted, the movable shaft lever 711 can be enabled to move along the shaft sleeve 72 to be positioned by the positioning rod 714, and the positioning slot 721 can be adjusted again.

Outside the sleeve 72 is a ring of side wall which is of an integral structure with the sleeve 72, and a plurality of slots 722 are formed in the side wall for the penetration of the steel wire rope 6. In contrast, it is not said in the foregoing that there are not only one wire rope 6 but at least two wire ropes 6, one wire rope 6 being provided at least on the upper and lower sides of the back pad 3, so that the net frame 5 can be moved as a whole.

As an alternative embodiment, the place where the wire rope 6 passes around or through may be positioned by a pulley, but considering the cost of the pulley. In this embodiment, a hook and a joint 10 are provided, the hook is divided into a first hook 8 and a second hook 9, the first hook 8 is hooked on one side of the back frame 1, and the end of the wire rope 6 is fixedly connected with the tail end of the first hook 8. The joint 10 is clamped on the fixed rod 51 of the net rack 5, and the back of the joint 10 is provided with a wire passing channel through which the steel wire rope 6 can pass. The second hook 9 includes a hook portion 91 and a sleeve portion 92, the hook portion 91 is hooked on the other side of the back frame 1, the sleeve portion 92 is provided with a through hole, the wire rope 6 can pass through, the wire rope 6 passes through the tail end of the first hook 8, passes through the joint 10 at the back of the net frame 5, passes through the sleeve portion 92 of the second hook 9, and finally passes through the back frame 1 into the shaft sleeve 72 to be wound on the winding shaft 71. Compared with a pulley, the structure of the design is simpler, and the cost is lower.

While the utility model has been described in terms of embodiments, it will be appreciated by those skilled in the art that the utility model is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present utility model are intended to be included within the scope of the appended claims.

Claims

1. A comfortable ergonomic chair provided with a back frame (1), characterized in that: a back cushion (3) is arranged in the back frame (1), and a supporting device capable of adjusting the lower arch radian of the back cushion (3) is arranged between the back frame (1) and the back cushion (3);

the supporting device comprises a net rack (5), a steel wire rope (6) and a winding device, wherein the net rack (5) is attached to the back of the back cushion (3), at least one steel wire rope (6) is arranged, the end part of the steel wire rope (6) is fixed on one side of the back frame (1), the other end of the steel wire rope passes through the back of the net rack (5) and is fixed on the winding device after bypassing the other side of the back frame (1), the winding device winds the steel wire rope (6) to enable the steel wire rope (6) to be gradually tightened, and the net rack (5) can gradually move forward to drive the lower part of the back cushion (3) to move forward so as to change the arch radian of the back cushion (3).

2. A comfortable ergonomic chair of claim 1 wherein: the net rack (5) comprises two symmetrically arranged fixing rods (51) and a plurality of snake springs (52) arranged between the two fixing rods (51), connecting portions (521) are arranged at two ends of each snake spring (52), the two fixing rods (51) are respectively inserted into the connecting portions (521) at two ends of each snake spring (52), the connecting portions (521) and the fixing rods (51) are in interference fit, and bent positioning portions (511) are arranged at two ends of the fixing rods (51).

3. A comfortable ergonomic chair of claim 1 wherein: the winding device comprises a winding shaft (71) arranged on the side surface of the back frame (1), wherein the winding shaft (71) comprises a movable shaft lever (711), a limiting disc (712) and an outer connecting rod (713) which are integrally arranged, the limiting disc (712) is arranged between the movable shaft lever (711), the limiting disc (712) and the outer connecting rod (713), and the movable shaft lever (711) and the outer connecting rod (713) are coaxially arranged; the back frame (1) is provided with a shaft sleeve (72) and an end cover (73) which are arranged corresponding to the winding shaft (71), the shaft sleeve (72) is fixed on the back frame (1), a movable shaft lever (711) of the winding shaft (71) is inserted into the shaft sleeve (72) and can rotate in the shaft sleeve (72), the end cover (73) is sleeved on the outer connecting rod (713) and is fixed with the shaft sleeve (72), the end cover (73) and the limiting disc (712) form limiting fit so as to prevent the movable shaft lever (711) from separating from the shaft sleeve (72), a knob (74) is fixed on the outer connecting rod (713), a circle of positioning rod (714) is arranged on the limiting disc (712) around the movable shaft lever (711), a steel wire rope (6) penetrates into the end cover (73) and can be wound on the positioning rod (714), and a positioning slot (721) matched with the positioning rod (714) is arranged on the periphery of the shaft sleeve (72).

4. A comfortable ergonomic chair of claim 3 wherein: the device is provided with a hook and a connector (10), the hook comprises a first hook (8) and a second hook (9), the first hook (8) is hooked on one side of the back frame (1), and the end part of the steel wire rope (6) is fixedly connected with the tail end of the first hook (8);

the connector (10) is clamped on a fixed rod (51) of the net rack (5), and a wire passing channel is formed in the back of the connector (10) for a steel wire rope (6) to pass through;

the second hook (9) comprises a hook part (91) and a sleeve part (92), the hook part (91) is hooked on the other side of the back frame (1), and the sleeve part (92) is provided with a through hole for the steel wire rope (6) to pass through;

the wire rope (6) passes through the tail end of the first hook (8), the joint (10) at the back of the net rack (5) and the sleeve part (92) of the second hook (9) and finally passes through the back frame (1) and the entering shaft sleeve (72) to be wound on the winding shaft (71).

5. A comfortable ergonomic chair of claim 1 wherein: the outer parts of the back frame (1) and the back pad (3) are sleeved with a decorative layer.

6. A comfortable ergonomic chair of claim 1 wherein: the upper part of the back cushion (3) is provided with a neck pillow (31), the lower part of the back cushion (3) is provided with a waist rest (32), and the neck pillow (31) and the waist rest (32) are made of elastic materials.

7. A comfortable ergonomic chair of claim 6 wherein: the back cushion (3), the neck pillow (31) and the waist rest (32) are of an integrated structure.

8. A comfortable ergonomic chair of claim 1 wherein: the top of neck pillow (31) is equipped with headrest (4), and headrest (4) are made for metal shell fragment and silica gel, and metal shell fragment embedding is in the silica gel, and metal shell fragment is the type of falling V.