CN213282271U

CN213282271U - Leisure single sofa chair

Info

Publication number: CN213282271U
Application number: CN202022230752.0U
Authority: CN
Inventors: 黄转霞; 赵寿锡; 张远培
Original assignee: Guangzhou Yuanrui Furniture Industrial Co ltd
Current assignee: Guangzhou Yuanrui Furniture Industrial Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-05-28
Anticipated expiration: 2030-10-09

Abstract

The utility model relates to a leisure single sofa chair belongs to furniture technical field, including the sofa seat, be equipped with handrail and back on the sofa seat, be equipped with the connecting block on the back, be equipped with the spread groove on the sofa seat, connecting block and spread groove are pegged graft, are equipped with the pivot on the connecting block, pivot and sofa seat rotate to be connected, be equipped with on the handrail and be used for driving pivot pivoted drive assembly. This application accessible rotates the pivot, and the pivot drives the back and rotates, and then adjusts the angle of back.

Description

Leisure single sofa chair

Technical Field

The application relates to the technical field of furniture, in particular to a leisure single sofa chair.

Background

With the development of the times, the reform and the upgrade of household furniture are also influenced. Nowadays, sofa chairs are widely used in the aspects of office work, leisure, furniture and the like, and the sofa chairs are made of various materials, such as leather, cloth, metal, solid wood and even bamboo rattans.

Chinese patent publication No. CN206964409U discloses a novel single sofa chair, which comprises a body; the utility model discloses a chair, including body, bolt fixedly connected with, right handrail, back, the middle part joint of body has the seatpad, the middle part of seatpad is provided with the guard plate, the below of seatpad is provided with the bearing pad.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the angle of the backrest is basically fixed, the angle of the waist of a person is fixed when the person uses the sofa chair for rest, and the body of the person feels uncomfortable as the sitting and standing time is prolonged.

SUMMERY OF THE UTILITY MODEL

In order to adjust the angle of the backrest, the application provides a leisure single sofa.

The application provides a leisure single sofa chair adopts following technical scheme:

the utility model provides a leisure single sofa chair, includes the sofa seat, be equipped with handrail and back on the sofa seat, be equipped with the connecting block on the back, be equipped with the spread groove on the sofa seat, connecting block and spread groove are pegged graft, are equipped with the pivot on the connecting block, pivot and sofa seat rotate to be connected, be equipped with on the handrail and be used for driving pivot pivoted drive assembly.

Through adopting above-mentioned technical scheme, the connecting block is pegged graft in spread groove department, and the back can rotate in spread groove department. When the angle of the backrest needs to be adjusted, the rotating shaft is driven to rotate by the driving assembly, and the rotating shaft drives the backrest to rotate, so that the angle of the backrest is adjusted. After people sit for a long time, the discomfort can be reduced by adjusting the angle of the backrest.

Preferably, the driving assembly comprises a worm wheel and a worm, the rotating shaft extends into the handrail and is in rotating connection with the handrail, the worm wheel and the rotating shaft are coaxially fixed, the worm is in rotating connection with the handrail, and the worm is meshed with the worm wheel.

Through adopting above-mentioned technical scheme, rotate the worm, worm drive worm wheel rotates, and the worm wheel drives the pivot and rotates, and the pivot drives the back and rotates on the sofa seat, and then realizes adjusting the angle of back. Meanwhile, the self-locking function between the worm wheel and the worm enables the backrest to be fixed after rotating a certain angle.

Preferably, a support is fixed in the handrail, and the worm is rotatably connected with the support.

Through adopting above-mentioned technical scheme, through setting up the support, make the stable rotation of worm connect on the handrail.

Preferably, a bearing is arranged on the support, and the worm is rotatably connected with the support through the bearing.

Through adopting above-mentioned technical scheme, through setting up the bearing, reducible frictional force rotates the worm more easily.

Preferably, the driving assembly comprises a gear and a rack, the rotating shaft extends into the handrail and is rotatably connected with the handrail, the gear and the rotating shaft are coaxially fixed, the rack is slidably connected with the handrail, the rack is meshed with the gear, and a fixing part for fixing the rack is arranged on the handrail.

Through adopting above-mentioned technical scheme, loosen the mounting, promote the back, the back drives the pivot and rotates, and the pivot drives gear revolve, and the gear drives the rack and slides in the handrail, then locks the mounting, and the rigidity of rack, the unable rotation of gear, and then the angle that makes the back is fixed, realizes adjusting the angle of back.

Preferably, a sliding rail is fixed in the armrest, the rack is located in the sliding rail, and the rack is connected with the sliding rail in a sliding manner.

Through adopting above-mentioned technical scheme, through setting up the slide rail, the slide rail is spacing to the slip of rack, makes the slip of rack more steady.

Preferably, the fixing part is a bolt, the bolt is in sliding connection with the handrail, a limiting groove is formed in the rack, the limiting groove is arranged at intervals along the length direction of the rack, and the bolt is connected with one limiting groove in an inserting mode.

Through adopting above-mentioned technical scheme, peg graft on the spacing groove through the bolt, make the fixed position of rack, and then make the angle of back fixed. The backrest with different angles and the bolt are inserted in different limiting grooves.

Preferably, be equipped with the spout on the handrail, be equipped with stopper and spring on the bolt, stopper and spout sliding connection, the spring cup joints in the bolt, the one end and the stopper fixed connection of spring, the inner wall fixed connection of the other end and spout.

Through adopting above-mentioned technical scheme, through setting up the spring, the elasticity of spring makes the tip of bolt peg graft in the spacing groove, improves the connection stability of bolt and spacing groove.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the worm is rotated, the worm drives the worm wheel to rotate, the worm wheel drives the rotating shaft to rotate, and the rotating shaft drives the backrest to rotate on the sofa seat, so that the angle of the backrest is adjusted. Meanwhile, the self-locking function between the worm wheel and the worm enables the backrest to be fixed after rotating a certain angle. After people sit for a long time, the discomfort can be reduced by adjusting the angle of the backrest.

2. The fixing piece is loosened, the backrest is pushed, the backrest drives the rotating shaft to rotate, the rotating shaft drives the gear to rotate, the gear drives the rack to slide in the armrest, then the fixing piece is locked, the position of the rack is fixed, the gear cannot rotate, the angle of the backrest is fixed, and the angle of the backrest is adjusted.

Drawings

FIG. 1 is a schematic view showing a leisure individual sofa chair according to embodiment 1;

fig. 2 is a sectional view of the armrest in embodiment 1;

FIG. 3 is a schematic view showing the structure of a leisure individual sofa in embodiment 2;

fig. 4 is a sectional view of the armrest in embodiment 2.

Description of reference numerals: 1. a sofa seat; 11. connecting grooves; 2. a handrail; 21. a cavity; 22. a support; 23. a bearing; 24. a slide rail; 3. a backrest; 31. connecting blocks; 32. a rotating shaft; 4. a worm gear; 41. a connecting rod; 5. a worm; 6. a gear; 7. a rack; 71. a limiting groove; 8. a chute; 9. a bolt; 91. a limiting block; 92. a spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a leisure single sofa chair.

Example 1

Referring to fig. 1 and 2, the single sofa comprises a sofa seat 1, armrests 2 are fixed on two sides of the sofa seat 1, and a backrest 3 is arranged between the two armrests 2. The sofa seat 1 is provided with a connecting groove 11, the backrest 3 is integrally formed with a connecting block 31, and the connecting block 31 is inserted into the connecting groove 11. The connecting block 31 is fixed with a rotating shaft 32, the rotating shaft 32 is rotatably connected with the sofa seat 1, and the armrest 2 is provided with a driving component for driving the rotating shaft 32 to rotate. By rotating the rotating shaft 32, the rotating shaft 32 drives the backrest 3 to rotate on the sofa seat 1, and the angle of the backrest 3 can be adjusted.

A cavity 21 is arranged in the handrail 2, one end of the rotating shaft 32 extends into the cavity 21, and the rotating shaft 32 is rotatably connected with the handrail 2. The driving assembly comprises a worm wheel 4 and a worm 5, the worm wheel 4 is coaxially fixed at the end part of the rotating shaft 32 in the cavity 21, the worm 5 is vertically arranged, and the worm 5 is meshed with the worm wheel 4.

A bracket 22 is fixed in the cavity 21, the cross section of the bracket 22 is U-shaped, and the opening of the bracket 22 is arranged toward the worm wheel 4. The bracket 22 is provided with a bearing 23, and the worm 5 is rotatably connected with the bracket 22 through the bearing 23. By providing the bearing 23, friction can be reduced and it is easier to turn the worm 5. The top end of the worm 5 is fixed with a connecting rod 41, the connecting rod 41 upwards penetrates through the handrail 2, and the connecting rod 41 is rotatably connected with the handrail 2.

The implementation principle of the embodiment 1 is as follows: the connecting rod 41 is rotated, the worm 5 rotates along with the connecting rod, the worm 5 drives the worm wheel 4 to rotate, the worm wheel 4 drives the rotating shaft 32 to rotate, the rotating shaft 32 drives the backrest 3 to rotate on the sofa seat 1, and then the angle of the backrest 3 is adjusted.

Example 2

Referring to fig. 3 and 4, the single sofa comprises a sofa seat 1, armrests 2 are fixed on two sides of the sofa seat 1, and a backrest 3 is arranged between the two armrests 2. The sofa seat 1 is provided with a connecting groove 11, the backrest 3 is integrally formed with a connecting block 31, and the connecting block 31 is inserted into the connecting groove 11. The connecting block 31 is fixed with a rotating shaft 32, the rotating shaft 32 is rotatably connected with the sofa seat 1, and the armrest 2 is provided with a driving component for driving the rotating shaft 32 to rotate. By rotating the rotating shaft 32, the rotating shaft 32 drives the backrest 3 to rotate on the sofa seat 1, and the angle of the backrest 3 can be adjusted.

A cavity 21 is arranged in the handrail 2, one end of the rotating shaft 32 extends into the cavity 21, and the rotating shaft 32 is rotatably connected with the handrail 2. The driving assembly comprises a gear 6 and a rack 7, the gear 6 is coaxially fixed at the end part of the rotating shaft 32, which is positioned in the cavity 21, the rack 7 is horizontally arranged, the rack 7 is meshed with the gear 6, and the rack 7 is positioned at the top part of the gear 6.

A slide rail 24 is fixed in the cavity 21, the slide rail 24 comprises two rails with U-shaped cross sections, the openings of the two rails are arranged oppositely, the rack 7 is arranged between the two rails in a sliding manner, and the length of the slide rail 24 is greater than that of the rack 7.

The handrail 2 is connected with a bolt 9 in a sliding way, the bolt 9 is vertically arranged, and the bottom end of the bolt 9 extends into the cavity 21. The top surface of rack 7 has seted up spacing groove 71, and spacing groove 71 has a plurality of, and a plurality of spacing groove 71 sets up along the length direction interval of rack 7, and the bottom of bolt 9 is pegged graft with one of them spacing groove 71. The bolt 9 is inserted into the limit groove 71, so that the position of the rack 7 is fixed, and the angle of the backrest 3 is fixed. The backrest 3 with different angles and the bolt 9 are inserted in different limit grooves 71.

A chute 8 is arranged in the handrail 2, and the chute 8 is positioned above the cavity 21. Be provided with stopper 91 and spring 92 on bolt 9, stopper 91 is located spout 8, stopper 91 and spout 8 sliding connection. Spring 92 is sleeved on bolt 9, one end of spring 92 is fixedly connected with limiting block 91, and the other end is fixedly connected with the inner wall of chute 8.

The implementation principle of the embodiment 2 is as follows: extract bolt 9, bolt 9 leaves spacing groove 71, promotes back 3, and back 3 drives pivot 32 and rotates, and pivot 32 drives gear 6 and rotates, and gear 6 drives rack 7 and slides in handrail 2, loosens bolt 9, makes bolt 9 peg graft in spacing groove 71, and the rigidity of rack 7, gear 6 can't rotate, and then makes the angle of back 3 fixed, realizes adjusting the angle of back 3.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a leisure single sofa chair, includes sofa seat (1), be equipped with handrail (2) and back (3) on sofa seat (1), its characterized in that: be equipped with connecting block (31) on back (3), be equipped with spread groove (11) on sofa seat (1), connecting block (31) and spread groove (11) are pegged graft, are equipped with pivot (32) on connecting block (31), pivot (32) and sofa seat (1) rotate to be connected, be equipped with on handrail (2) and be used for driving pivot (32) pivoted drive assembly.

2. The leisure individual sofa chair of claim 1, wherein: the drive assembly comprises a worm wheel (4) and a worm (5), the rotating shaft (32) extends into the handrail (2) and is rotatably connected with the handrail (2), the worm wheel (4) and the rotating shaft (32) are coaxially fixed, the worm (5) is rotatably connected with the handrail (2), and the worm (5) is meshed with the worm wheel (4).

3. The leisure individual sofa chair according to claim 2, characterized in that: a support (22) is fixed in the handrail (2), and the worm (5) is rotatably connected with the support (22).

4. A leisure individual sofa as claimed in claim 3 wherein: the support (22) is provided with a bearing (23), and the worm (5) is rotatably connected with the support (22) through the bearing (23).

5. The leisure individual sofa chair of claim 1, wherein: the driving assembly comprises a gear (6) and a rack (7), the rotating shaft (32) extends into the handrail (2) and is rotatably connected with the handrail (2), the gear (6) and the rotating shaft (32) are coaxially fixed, the rack (7) is slidably connected with the handrail (2), the rack (7) is meshed with the gear (6), and a fixing piece for fixing the rack (7) is arranged on the handrail (2).

6. The leisure individual sofa of claim 5 wherein: a sliding rail (24) is fixed in the handrail (2), the rack (7) is positioned in the sliding rail (24), and the rack (7) is connected with the sliding rail (24) in a sliding manner.

7. The leisure individual sofa of claim 5 wherein: the mounting is bolt (9), bolt (9) and handrail (2) sliding connection, be equipped with spacing groove (71) on rack (7), spacing groove (71) set up along rack (7) length direction interval, and bolt (9) and one of them spacing groove (71) are pegged graft.

8. The leisure individual sofa of claim 7 wherein: be equipped with spout (8) on handrail (2), be equipped with stopper (91) and spring (92) on bolt (9), stopper (91) and spout (8) sliding connection, spring (92) cup joint in bolt (9), the one end and stopper (91) fixed connection of spring (92), the inner wall fixed connection of the other end and spout (8).