CN215820287U

CN215820287U - Bar chair with self-adaptive backrest

Info

Publication number: CN215820287U
Application number: CN202121274110.9U
Authority: CN
Inventors: 王海华; 李元洪
Original assignee: Anji Juyuan Furniture Co ltd
Current assignee: Anji Juyuan Furniture Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2022-02-15
Anticipated expiration: 2031-06-08

Abstract

The utility model provides a back-adaptive bar chair, which relates to the technical field of chairs and comprises a supporting part, a supporting plate and a cushion plate, wherein the supporting plate is arranged above the supporting part, one side of the supporting plate is provided with an inserting groove, an L-shaped inserting plate is movably inserted in the inserting groove, an inserting cylinder is arranged in the middle of the top of the supporting plate, gears are rotatably arranged at two ends of the inserting cylinder, racks on two sides are arranged in the middle of the bottom of the cushion plate, and the racks on two sides are movably inserted in the inserting cylinder; the utility model has a self-adaptive structure, when a user sits on the cushion plate, the cushion plate presses downwards, so that racks on two sides move downwards in the inserting cylinder to drive gears on two sides to rotate, the gears drive the rotating shaft to rotate, and the nut pipe is driven to move under the action of the external threads, so that the L-shaped inserting plate and the backrest framework are driven to move, the distance between the backrest and the back of the user is adjusted in a self-adaptive manner, and the user with different heights can be effectively supported.

Description

Bar chair with self-adaptive backrest

Technical Field

The utility model relates to the technical field of chairs, in particular to a bar chair with a self-adaptive backrest.

Background

Bar chairs are commonly found in two categories: fixed and split type, fixed bar chair is most all monolithic structures: the structure can be divided into an all-wood structure, an all-plastic structure and an all-iron structure; split type bar chair comprises upper and lower two halves: the upper half part can be plastic, wood or iron; the lower half part is a five-star foot, a round chassis, a square chassis, a wood foot and the like;

in the prior art, the backrest of a common bar chair is fixed, the position of the backrest cannot be automatically adjusted according to the needs of users, when people with different heights sit on the chair, the distance between the back of a human body and the backrest is different, so that the backrest on the chair cannot effectively support the users with different heights, and in the prior art, the height and the angle of the backrest cannot be adjusted, so that the use comfort level is affected.

SUMMERY OF THE UTILITY MODEL

The utility model provides a backrest self-adaptive bar chair which is provided with a self-adaptive structure, when a user sits on a cushion plate, the cushion plate presses downwards, so that racks on two sides move downwards in an inserting cylinder to drive gears on two sides to rotate, the gears drive a rotating shaft to rotate, a nut pipe is driven to move under the action of external threads, an L-shaped inserting plate and a backrest framework are driven to move, the distance between a backrest and the back of the user is adjusted in a self-adaptive mode, and the user with different heights can be effectively supported.

In order to realize the purpose of the utility model, the utility model is realized by the following technical scheme: a back self-adaptive bar chair comprises a supporting part, a supporting plate and a cushion plate, wherein the supporting plate is arranged above the supporting part, one side of the supporting plate is provided with a slot, an L-shaped inserting plate is inserted in the slot in an internal movable manner, an inserting cylinder is arranged in the middle position of the top of the supporting plate, gears are rotatably arranged at two ends of the inserting cylinder, racks on two sides are arranged in the middle position of the bottom of the cushion plate, the racks on two sides are movably inserted into the inserting cylinder, the racks on two sides are matched with the gears at two ends, and reset components are arranged at four corners of the top of the supporting plate;

the both ends of backup pad top one side all are equipped with the axle bed, and one side of axle bed rotates installs the pivot, and is two sets of the pivot runs through two sets ofly respectively the gear and with gear connection, two sets of the one end in the pivot outside all is equipped with the external screw thread, the inboard both ends of L type picture peg all be equipped with the nut pipe, and the nut pipe box in the outside of pivot one end and with external screw thread looks adaptation, the outside of L type picture peg is equipped with the carousel, and rotates on the carousel and be equipped with the back skeleton, the upper end of back skeleton one side is equipped with fixed cushion, and movable mounting has movable bustle on the back skeleton.

The further improvement lies in that: the rotary table is provided with a first limiting hole, a plurality of groups of first limiting holes are formed in the edge, surrounding the rotary table, of the rotary table, a fixing hole is formed in the lower end of one side of the backrest framework, and a bolt is inserted into the first limiting hole and the fixing hole.

The further improvement lies in that: one side of activity bustle is equipped with the movable sleeve, and the activity bustle passes through the movable sleeve cover to be established on the back skeleton, one side of back skeleton is equipped with the spacing hole of second, and the spacing hole equidistance of second is equipped with the multiunit, be equipped with the knob bolt on the back skeleton, and the spacing hole looks adaptation of knob bolt and second.

The further improvement lies in that: the supporting part comprises four groups of supporting legs and fastening rings, the supporting legs are obliquely arranged at four corners below the supporting plate, and the fastening rings are arranged among the four groups of supporting legs.

The further improvement lies in that: the lower ends of the four groups of supporting legs are all sleeved with rubber sleeves.

The further improvement lies in that: the reset assembly comprises a supporting block, a spring and a shock pad, wherein the supporting block is arranged at the four corners of the top of the supporting plate, the spring is arranged on the supporting block, the shock pad is arranged on the spring, and the cushion plate is supported on the shock pad.

The further improvement lies in that: the cushion plate is composed of a steel plate and a soft cushion, the bottom of the steel plate is welded with the racks on the two sides, and the soft cushion is wrapped above the steel plate.

The utility model has the beneficial effects that:

1. the utility model has a self-adaptive structure, when a user sits on the cushion plate, the cushion plate presses downwards, so that racks on two sides move downwards in the inserting cylinder to drive gears on two sides to rotate, the gears drive the rotating shaft to rotate, and the nut pipe is driven to move under the action of the external threads, so that the L-shaped inserting plate and the backrest framework are driven to move, the distance between the backrest and the back of the user is adjusted in a self-adaptive manner, and the user with different heights can be effectively supported.

2. The backrest framework can be rotated to different angles through the rotary disc, and the bolt is inserted into different first limiting holes and fixing holes to fix the backrest framework, so that the backrest framework can meet the supporting requirements of different angles.

3. The movable waist cushion is movably arranged on the backrest framework through the movable sleeve, and the movable waist cushion can be fixed through installing the knob bolt into different second limiting holes, so that the movable waist cushion is suitable for supporting requirements of different positions.

4. The utility model provides an elastic function through the reset component, when a user does not sit, the cushion plate can be lifted to reset the L-shaped inserting plate, and when the user sits down, the impact force is buffered through the elastic supporting function of the spring matched with the shock pad, so that the user sits down more comfortably.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the upper structure of the support plate of the present invention;

FIG. 3 is a schematic view of the installation of the movable lumbar pad of the present invention;

fig. 4 is a schematic view of the cushion plate of the present invention.

Wherein: 1. a support plate; 2. a cushion plate; 3. an L-shaped plug board; 4. inserting a cylinder; 5. a gear; 6. a bilateral rack; 7. a shaft seat; 8. a rotating shaft; 9. an external thread; 10. a nut tube; 11. a turntable; 12. a backrest frame; 13. fixing the back cushion; 14. a movable waist pad; 15. a first limit hole; 16. a bolt; 17. a movable sleeve; 18. a second limiting hole; 19. a knob bolt; 20. a support leg; 21. a fastening ring; 22. a support block; 23. a spring; 24. a shock pad; 25. a steel plate; 26. a soft cushion.

Detailed Description

In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

Example one

According to the figures 1, 2, 3 and 4, the embodiment provides a back self-adaptive bar chair, which comprises a supporting part, a supporting plate 1 and a cushion plate 2, wherein the supporting plate 1 is arranged above the supporting part, one side of the supporting plate 1 is provided with a slot, an L-shaped inserting plate 3 is movably inserted in the slot, an inserting cylinder 4 is arranged in the middle of the top of the supporting plate 1, gears 5 are rotatably arranged at two ends of the inserting cylinder 4, a double-side rack 6 is arranged in the middle of the bottom of the cushion plate 2, the double-side rack 6 is movably inserted in the inserting cylinder 4, the double-side rack 6 is matched with the gears 5 at the two ends, and reset components are arranged at four corners of the top of the supporting plate 1;

the both ends of 1 top one side of backup pad all are equipped with axle bed 7, and one side of axle bed 7 is rotated and is installed pivot 8, and is two sets of pivot 8 runs through two sets of respectively gear 5 is connected with gear 5, and is two sets of the one end in the 8 outsides of pivot all is equipped with

external screw thread

9, 3 inboard both ends of L type picture peg all be equipped with nut pipe 10, and nut pipe 10 cover in the outside of 8 one ends of pivot and with external screw thread 9 looks adaptation, the outside of L type picture peg 3 is equipped with carousel 11, and rotates on the carousel 11 and be equipped with back skeleton 12, the upper end of back skeleton 12 one side is equipped with fixed cushion 13, and movable mounting has activity bustle 14 on back skeleton 12. During the use, when the user sits on cushion board 2, cushion board 2 pushes down for two side racks 6 are in inserting a section of thick bamboo 4 downstream, and it is rotatory to drive the gear 5 of both sides, and gear 5 drives pivot 8 rotatory, utilizes the effect of external screw thread 9, and drive nut pipe 10 removes, thereby drives L type picture peg 3 and back skeleton 12 and removes, and the distance at self-adaptation regulation back and user back can effectively support the user of different heights.

Be equipped with first spacing hole 15 on the carousel 11, and first spacing hole 15 is equipped with the multiunit around the edge of carousel 11, the lower extreme of back skeleton 12 one side is equipped with the fixed orifices, insert in first spacing hole 15 and the fixed orifices and be equipped with bolt 16. When the backrest frame is used, the backrest frame 12 is rotated to different angles through the rotary disc 11, and the bolt 16 is inserted into different first limiting holes 15 and fixing holes to fix the backrest frame 12, so that the backrest frame is adaptive to the supporting requirements of different angles.

One side of activity bustle 14 is equipped with movable sleeve 17, and activity bustle 14 overlaps through movable sleeve 17 and establish on back skeleton 12, one side of back skeleton 12 is equipped with the spacing hole of second 18, and the spacing hole of second 18 equidistance is equipped with the multiunit, be equipped with knob bolt 19 on the back skeleton 12, and knob bolt 19 and the spacing hole of second 18 looks adaptations. When in use, the movable waist cushion 14 can be fixed by installing the knob bolt 19 into different second limiting holes 18, so that the support requirements of different positions are met.

The supporting part comprises four groups of supporting legs 20 and fastening rings 21, the four groups of supporting legs 20 are obliquely arranged at four corners below the supporting plate 1, and the fastening rings 21 are arranged among the four groups of supporting legs 20.

The lower ends of the four groups of supporting legs 20 are all sleeved with rubber sleeves. And (4) skid resistance.

The cushion plate 2 consists of a steel plate 25 and a soft cushion 26, the bottom of the steel plate 25 is welded with the racks 6 on the two sides, and the soft cushion 26 is coated on the steel plate 25.

Example two

According to the figures 1, 2 and 4, the embodiment provides a back self-adaptive bar chair, which comprises a supporting part, a supporting plate 1 and a cushion plate 2, wherein the supporting plate 1 is arranged above the supporting part, one side of the supporting plate 1 is provided with a slot, an L-shaped inserting plate 3 is movably inserted in the slot, an inserting cylinder 4 is arranged in the middle of the top of the supporting plate 1, gears 5 are rotatably arranged at two ends of the inserting cylinder 4, a double-side rack 6 is arranged in the middle of the bottom of the cushion plate 2, the double-side rack 6 is movably inserted in the inserting cylinder 4, the double-side rack 6 is matched with the gears 5 at two ends, and reset components are arranged at four corners of the top of the supporting plate 1;

external screw thread

Reset assembly includes tray 22, spring 23 and shock pad 24, the four corners department at backup pad 1 top all is equipped with tray 22, and is equipped with spring 23 on the tray 22, be equipped with shock pad 24 on the spring 23, cushion board 2 supports on shock pad 24. Provide the elastic action through the subassembly that resets, when the user does not sit, can lift up cushion board 2 and make L type picture peg 3 reset, when sitting down, through the elastic support effect of spring 23 cooperation shock pad 24, cushion the impact force for it is more comfortable to sit down.

The self-adaptive bar chair with the backrest has a self-adaptive structure, when a user sits on the cushion plate 2, the cushion plate 2 presses downwards to enable the racks 6 at two sides to move downwards in the inserting cylinder 4 to drive the gears 5 at two sides to rotate, the gears 5 drive the rotating shaft 8 to rotate, the nut pipe 10 is driven to move by the action of the external thread 9, so as to drive the L-shaped inserting plate 3 and the backrest framework 12 to move, the distance between the backrest and the back of the user can be adjusted in a self-adaptive mode, the user with different heights can be effectively supported, the backrest framework 12 can be rotated to different angles through the rotating plate 11, the bolt 16 is inserted into different first limiting holes 15 and fixing holes to fix the backrest framework 12, so as to adapt to the supporting requirements of different angles, meanwhile, the movable waist cushion 14 is movably installed on the backrest framework 12 through the movable sleeve 17, the movable waist cushion 14 can be fixed by installing the knob bolt 19 into different second limiting holes 18, the support that is fit for different positions needs, in addition, provides the elastic action through the subassembly that resets, when the user does not sit, can lift up cushion board 2 and make L type picture peg 3 reset, when sitting down, through the elastic support effect of spring 23 cooperation shock pad 24, cushions the impact force for it is more comfortable to sit down.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a bar chair of back self-adaptation, includes supporting part, backup pad (1) and cushion board (2), its characterized in that: the seat cushion plate is characterized in that the supporting plate (1) is arranged above the supporting part, a slot is formed in one side of the supporting plate (1), an L-shaped inserting plate (3) is movably inserted into the slot, an inserting cylinder (4) is arranged in the middle of the top of the supporting plate (1), gears (5) are rotatably mounted at two ends of the inserting cylinder (4), double-side racks (6) are arranged in the middle of the bottom of the seat cushion plate (2), the double-side racks (6) are movably inserted into the inserting cylinder (4), the double-side racks (6) are matched with the gears (5) at two ends, and reset components are arranged at four corners of the top of the supporting plate (1);

the both ends of backup pad (1) top one side all are equipped with axle bed (7), and one side of axle bed (7) is rotated and is installed pivot (8), and is two sets of pivot (8) run through two sets ofly respectively gear (5) and be connected with gear (5), two sets of the one end in pivot (8) outside all is equipped with external screw thread (9), the both ends of L type picture peg (3) inboard all are equipped with nut pipe (10), and nut pipe (10) cover in the outside of pivot (8) one end and with external screw thread (9) looks adaptation, the outside of L type picture peg (3) is equipped with carousel (11), and rotates on carousel (11) and is equipped with back skeleton (12), the upper end of back skeleton (12) one side is equipped with fixed cushion (13), and movable mounting has movable waist pad (14) on back skeleton (12).

2. The bar chair of claim 1, wherein: be equipped with first spacing hole (15) on carousel (11), and first spacing hole (15) are equipped with the multiunit around the edge of carousel (11), the lower extreme of back skeleton (12) one side is equipped with the fixed orifices, insert in first spacing hole (15) and the fixed orifices and be equipped with bolt (16).

3. The bar chair with self-adaptive backrest as claimed in claim 2, wherein: one side of activity bustle (14) is equipped with movable sleeve (17), and activity bustle (14) establish on back skeleton (12) through movable sleeve (17) cover, one side of back skeleton (12) is equipped with spacing hole of second (18), and spacing hole of second (18) equidistance is equipped with the multiunit, be equipped with knob bolt (19) on back skeleton (12), and knob bolt (19) and the spacing hole of second (18) looks adaptation.

4. The bar chair with self-adaptive backrest as claimed in claim 3, wherein: the supporting part comprises supporting legs (20) and fastening rings (21), the supporting legs (20) are provided with four groups, the four groups of supporting legs (20) are obliquely arranged at four corners below the supporting plate (1), and the fastening rings (21) are arranged between the four groups of supporting legs (20).

5. The bar chair of claim 4, wherein: the lower ends of the four groups of supporting legs (20) are all sleeved with rubber sleeves.

6. The bar chair according to any one of claims 1 to 5, wherein: reset assembly includes tray (22), spring (23) and shock pad (24), the four corners department at backup pad (1) top all is equipped with tray (22), and is equipped with spring (23) on tray (22), be equipped with shock pad (24) on spring (23), cushion board (2) support on shock pad (24).

7. The bar chair of claim 1, wherein: cushion board (2) comprise steel sheet (25) and cushion (26), steel sheet (25) bottom and two side rack (6) welded fastening, the top at steel sheet (25) is wrapped in cushion (26).