CN217743670U

CN217743670U - Back connection structure and swivel chair

Info

Publication number: CN217743670U
Application number: CN202222095937.4U
Authority: CN
Inventors: 许晓莉
Original assignee: Zhangzhou Aimoli Furniture Co ltd
Current assignee: Zhangzhou Aimoli Furniture Co ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2022-11-08
Anticipated expiration: 2032-08-10

Abstract

The utility model relates to a lean against connection structure and swivel chair relates to chair connection structure's technical field, and it is including leaning against subassembly, coupling assembling and seat subassembly, coupling assembling installs in the bottom surface of seat subassembly and rather than swing joint, the lower extreme both sides that lean against the subassembly can be dismantled with coupling assembling and be connected, when leaning against the subassembly and being connected with coupling assembling, outside the coupling assembling part stretches out the seat subassembly, when leaning against subassembly and coupling assembling separation, coupling assembling wholly can remove to the vertical projection within range of seat subassembly. This application has the back of the back and dismantles the back, and the coupling assembling of chair can not influence the effect of the comfort level of people's end seat.

Description

Back connection structure and swivel chair

Technical Field

The application relates to the technical field of chair connection structures, in particular to a backrest connection structure and a swivel chair.

Background

The chair can alleviate people because of the tired sense that long-term standing brought, in order to provide stable and comfortable back support for people when using, more and more back chairs appear on the market, but along with the increase of the amusement project of life, contact and visit between the people are gradually frequent day by day, when people gathered together, back chair's occupation space is big and be difficult for the seat of enclosing.

For example, chinese patent with publication No. CN214433082U discloses a detachable chair in the related art, which comprises a connecting assembly, a supporting assembly, a seat assembly and a backrest assembly, wherein the connecting assembly is detachably disposed at the left and right sides of the seat assembly, the connecting assembly is in an inverted J-shaped configuration and is detachably connected to the supporting assembly, and the backrest assembly is detachably connected to the connecting assembly.

To the correlation technique among the above-mentioned, the applicant finds that coupling assembling links to each other supporting legs and back subassembly, if want to dismantle to lean against and save space and supply everybody to gather, need dismantle coupling assembling, but coupling assembling is the type of falling J and sets up in seat subassembly left and right sides, dismantles the back of leaning on, and coupling assembling's the part of protruding seat subassembly can make the arm collide, and influence everybody's end seat's comfort level, consequently needs the improvement.

SUMMERY OF THE UTILITY MODEL

In order to provide one kind and to lean against the dismantlement back, the coupling assembling of chair can not influence the comfort level of people's end seat, this application provides one kind and leans against connection structure and swivel chair.

In a first aspect, the present application provides a backrest connecting structure that adopts the following technical solution:

the utility model provides a lean against connection structure, includes and leans against subassembly, coupling assembling and seat subassembly, coupling assembling installs in the bottom surface of seat subassembly and rather than swing joint, the lower extreme both sides of leaning against the subassembly can be dismantled with coupling assembling and be connected, works as when leaning against the subassembly and being connected with coupling assembling, the coupling assembling part stretches out outside the seat subassembly, works as when leaning against the subassembly and when coupling assembling separation, the whole vertical projection within range that can remove to the seat subassembly of coupling assembling.

Through adopting above-mentioned technical scheme, coupling assembling is at the swing joint of bottom surface, can make coupling assembling be convenient for the removal of each position.

Optionally, the connecting assembly includes two support rods, two of them one end of support rod all is connected with seat subassembly bottom surface rotation, two the position that support rod and seat subassembly rotate to be connected all deviates from the vertical central line of seat subassembly.

By adopting the technical scheme, the fixing positions of the two supporting rods are arranged at the vertical center deviated from the seat assembly, so that the supporting rods are hidden to the bottom of the seat assembly and then positioned in the range of the vertical projection of the seat assembly.

Optionally, a sleeve is arranged at one end of the support rod, which is far away from the vertical center line of the seat assembly, the top of the sleeve is lower than the bottom of the seat assembly, inserting shafts are arranged on two sides of the lower end of the backrest assembly, and when the backrest assembly is connected with the seat assembly, the two inserting shafts are respectively inserted into the two sleeves.

Through adopting above-mentioned scheme, the height that highly is less than the bottom of seat subassembly at sleeve top can be so that when accomodating into the seat subassembly with coupling assembling, avoid seat subassembly and coupling assembling portion to produce the interference, in addition, the telescopic setting can realize being connected of subassembly and seat subassembly by leaning on through being connected with the plug shaft.

Optionally, the two support rods are rotatably connected with the seat assembly through the same rotating shaft, one end of one of the support rods, which is rotatably connected with the seat assembly, is provided with a yielding groove, and the other end of the support rod, which is rotatably connected with the seat assembly, is located in the yielding groove.

By adopting the scheme, the arrangement of the abdicating groove in one supporting rod provides a placing space for the other supporting rod, and in addition, the rotating shaft can realize the connection of the two supporting rods.

Optionally, the backrest assembly includes an arc plate and an insertion shaft, the insertion shaft is disposed at lower ends of two sides of the arc plate, a limiting groove matched with the insertion shaft is disposed in the sleeve, and the insertion shaft can be inserted into the limiting groove of the sleeve.

Through adopting above-mentioned technical scheme, insert the axle through inserting and establish into telescopic spacing inslot to realize the sleeve and insert being connected of axle.

Optionally, a containing groove is formed in the bottom of the inserting shaft, a built-in nut is arranged in the containing groove, a first locking bolt matched with the built-in nut is arranged at the bottom of the sleeve, and the built-in nut is inserted into the first locking bolt.

Through adopting above-mentioned technical scheme, insert through inserting first locking bolt and establish built-in nut, can realize inserting the fixed connection between axle and the sleeve.

In a second aspect, the present application provides a swivel chair, which adopts the following technical solutions:

optionally, the backrest rotating mechanism comprises a supporting assembly, a rotating assembly and a backrest connecting structure, wherein the rotating assembly is arranged between the supporting assembly and the backrest connecting structure, the top of the rotating assembly is fixedly connected with the backrest connecting structure, and the bottom of the rotating assembly is fixedly connected with the supporting assembly.

Through adopting above-mentioned technical scheme, the setting of runner assembly can realize being connected of supporting component and subassembly of leaning on.

Optionally, the rotating assembly comprises a mounting seat, a rotating shaft and a rotating seat, the mounting seat is fixedly connected to the backrest connecting structure, the rotating shaft is arranged at one end, far away from the backrest connecting structure, of the mounting seat, the rotating seat is arranged at the lower end of the rotating shaft, and one end, far away from the rotating shaft, of the rotating seat is fixedly connected with the supporting assembly.

Through adopting above-mentioned technical scheme, through the rotation of axis of rotation, can drive the rotation of leaning against the subassembly with axis of rotation fixed connection.

Optionally, the supporting component includes supporting leg and connecting seat, the supporting leg sets up in all sides of connecting seat, the bottom of connecting seat is provided with the second and locks the bolt, the second is locked the bolt and is arranged in the bottom of connecting seat in circumference equidistance, the bolt body of second lock bolt wear to establish rotate the seat and with rotate seat bottom threaded connection.

Through adopting above-mentioned technical scheme, the setting of bolt has been paid to the second lock has realized being connected between supporting component and the rotation seat.

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

1. the fixed positions of the two support rods are arranged to deviate from the vertical center of the seat assembly, so that the support rods are positioned in the range of the vertical projection of the seat assembly after being hidden to the bottom of the seat assembly;

2. the first locking bolt is inserted into the built-in nut, so that the fixed connection between the insertion shaft and the sleeve can be realized;

3. through the rotation of axis of rotation, can drive the rotation of leaning against the subassembly with axis of rotation fixed connection.

Drawings

Fig. 1 is a schematic structural view of a backrest connection structure according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a connection assembly of an embodiment of the present application;

FIG. 3 is a schematic view of a partially enlarged structure A of FIG. 1;

FIG. 4 is a schematic structural diagram of an insert shaft according to an embodiment of the present application;

FIG. 5 is a schematic view of the overall structure of the swivel chair according to the embodiment of the present application;

FIG. 6 is a schematic cross-sectional view of a rotating assembly according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a support assembly according to an embodiment of the present application;

in the drawings, 1, a backrest assembly; 11. an arc-shaped plate; 12. inserting a shaft; 121. a containing groove; 122. a nut is arranged inside; 2. a connection assembly; 21. a support bar; 211. a yielding groove; 22. a sleeve; 221. a limiting groove; 222. a first locking bolt; 3. a seat assembly; 4. a support assembly; 41. a connecting seat; 42. supporting legs; 411. a second locking bolt; 5. a rotating assembly; 51. a mounting seat; 52. a rotating shaft; 53. and (6) rotating the seat.

Detailed Description

The present application is described in further detail below with reference to fig. 1-7.

The application discloses connecting structure leans against, refer to fig. 1, including leaning against subassembly 1, coupling assembling 2 and seat subassembly 3, coupling assembling 2 all installs in seat subassembly 3's bottom surface, and swing joint between coupling assembling 2 and the bottom surface of seat subassembly 3 for outside coupling assembling 2 part can shift out seat subassembly 3's bottom surface, the lower extreme both sides of leaning against subassembly 1 can be dismantled with coupling assembling 2 and be connected.

When the backrest assembly 1 is connected with the connecting assembly 2, the connecting assembly 2 partially extends out of the seat assembly 3, and when the backrest assembly 1 is separated from the connecting assembly 2, the connecting assembly 2 can integrally move to the vertical projection range of the seat assembly 3.

Referring to fig. 1 and 2, the connecting assembly 2 includes two support rods 21, one end of each of the two support rods 21 is rotatably connected to the bottom surface of the seat assembly 3, the axis of the rotating shaft between the support rod 21 and the seat assembly 3 is vertically arranged, the positions of the two support rods 21 rotatably connected to the seat assembly 3 are deviated from the vertical center line of the seat assembly 3, one ends of the two support rods 21 away from the vertical center line of the seat assembly 3 are provided with sleeves 22, and two sides of the lower end of the backrest assembly 1 are respectively inserted into the two support rods 21 to be connected to the connecting assembly 2.

Referring to fig. 3, two support rods 21 are rotatably connected to the seat assembly 3 through the same rotating shaft, wherein one end of one support rod 21 rotatably connected to the seat assembly 3 is provided with a yielding groove 211, and the other end of the other support rod 21 rotatably connected to the seat assembly 3 is located in the yielding groove 211; when the backrest assembly 1 is connected with the connecting assembly 2, two sides of the lower end of the backrest assembly 1 are respectively fixedly connected with one ends of the two support rods 21 far away from the vertical center line of the seat assembly 3, and the side surface of the backrest assembly 1 is attached to the side surface of the seat assembly 3.

Wherein, the cross-sectional area of sleeve 22 is circular, and is provided with spacing groove 221 in the sleeve 22 to be used for the connection of subassembly 1 of leaning on, the height of sleeve 22 is less than the height of seat subassembly 3 bottom surface, can make when accomodating into seat subassembly 3 with coupling assembling 2, can not produce the interference between seat subassembly 3 and the coupling assembling 2.

Referring to fig. 1, the backrest assembly 1 comprises an arc plate 11, both ends of the bottom of the arc plate 11 are provided with insertion shafts 12, the insertion shafts 12 and the arc plate 11 are of an integrated structure, the arc plate 11 is used for supporting the back of people, and when the insertion shafts 12 are inserted into the sleeves 22, the detachable connection of the arc plate 11 and the seat assembly 3 can be simply realized.

Referring to fig. 1 and 4, the bottom of the spindle 12 is provided with an accommodating groove 121, an internal nut 122 is fixed in the accommodating groove 121, the bottom of the sleeve 22 is inserted with a first locking bolt 222, and a bolt body of the first locking bolt 222 penetrates through the limiting groove and is in threaded connection with the internal nut 122. The two insertion shafts 12 are inserted into the limiting grooves 221 of the sleeve 22 in an interference fit manner to realize relative fixation between the sleeve 22 and the insertion shafts 12, and the first locking bolt 222 is inserted into the built-in nut 122 to realize locking of the insertion shafts 12 and the sleeve 22.

The implementation principle of the embodiment of the application is as follows: when the backrest assembly 1 and the seat assembly 3 are installed, the connecting assembly 2 partially extends out of the seat assembly 3, the insertion shafts 12 on two sides of the lower end of the backrest assembly 1 are inserted into the limiting grooves 221 of the sleeves 22 to achieve relative fixing of the sleeves 22 and the insertion shafts 12, the sleeves 22 and the insertion shafts 12 are locked through the mutual matching of the first locking bolts 222 and the built-in nuts 122 in the insertion shafts 12 to achieve stability of the backrest assembly 1 and the seat assembly 3, when the backrest assembly 1 is disassembled, the first locking bolts 222 of the built-in nuts 122 are loosened, the insertion shafts 12 are pulled out of the sleeves 22, the connecting assembly 2 is rotated into the bottom of the seat assembly 3, and the connecting assembly 2 can integrally move into a vertical projection range of the seat assembly 3.

The application also discloses a swivel chair, refer to fig. 5, including supporting component 4, rotating assembly 5 and as above lean against connection structure, rotating assembly 5 sets up between supporting component 4 and lean against connection structure.

Referring to fig. 6, the rotating assembly 5 includes a mounting seat 51, a rotating shaft 52 and a rotating seat 53, the mounting seat 51 is fixedly connected to the bottom of the seat assembly 3, the rotating shaft 52 is disposed on one side of the mounting seat 51 far away from the backrest connecting structure, the rotating shaft 52 is fixedly connected to the mounting seat 51, the lower end of the rotating shaft 52 is inserted into the rotating seat 53, the rotating seat 53 is rotatably connected to the rotating shaft 52, and the lower end of the rotating seat 53 is fixedly connected to the top of the supporting assembly 4.

Referring to fig. 7, the support assembly 4 includes support legs 42 and a connecting seat 41, the support legs 42 are provided in four, and the four support legs 42 are circumferentially arranged around the axis of the connecting seat 41 at equal intervals, and the top of each support leg 42 is fixedly connected with the connecting seat.

The rotation of the rotating shaft 53 can change the direction of the body by twisting the waist directly during the sitting process, so that the direction adjustment of the user who is not convenient to move, i.e. the user does not need to make a strenuous rising way, and the safety and convenience of the use process can be improved.

The implementation principle of the embodiment of the application is as follows: when a user sits on the seat, the user can apply an external force to the backrest rotating structure by twisting waist and rotating, the rotating shaft 52 below the installation seat 51 can rotate, and the backrest connecting structure fixedly connected with the installation seat 51 can rotate in the same direction.

The embodiments of the present invention are preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, wherein like parts are denoted by like reference numerals. Therefore, the method comprises the following steps: 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 connection structure backs, its characterized in that, includes and leans against subassembly (1), coupling assembling (2) and seat subassembly (3), coupling assembling (2) install in the bottom surface of seat subassembly (3) and rather than swing joint, the lower extreme both sides of leaning against subassembly (1) can be dismantled with coupling assembling (2) and be connected, when leaning against subassembly (1) and coupling assembling (2) and be connected, coupling assembling (2) part stretches out outside seat subassembly (3), when leaning against subassembly (1) and coupling assembling (2) separation, coupling assembling (2) whole can move to the vertical projection within range of seat subassembly (3).

2. A backrest connecting structure as claimed in claim 1, wherein the connecting assembly (2) comprises two support rods (21), one end of each support rod (21) is rotatably connected to the bottom surface of the seat assembly (3), and the positions of the rotatable connection of the support rods (21) to the seat assembly (3) are offset from the vertical center line of the seat assembly (3).

3. The backrest connecting structure as claimed in claim 2, wherein a sleeve (22) is provided at one end of the support rod (21) away from the vertical center line of the seat assembly (3), the height of the top of the sleeve (22) is lower than the height of the bottom of the seat assembly (3), two insertion shafts (12) are provided at both sides of the lower end of the backrest assembly (1), and when the backrest assembly (1) is connected with the seat assembly (3), the two insertion shafts (12) are respectively inserted into the two sleeves (22).

4. The backrest connecting structure according to claim 2, wherein the two support rods (21) are rotatably connected with the seat assembly (3) through a same rotating shaft, one end of one of the support rods (21) rotatably connected with the seat assembly (3) is provided with a yielding groove (211), and the other end of the other support rod (21) rotatably connected with the seat assembly (3) is located in the yielding groove (211).

5. A backrest connection structure as claimed in claim 3, wherein the bottom of the insertion shaft (12) is provided with a receiving groove (121), a built-in nut (122) is provided in the receiving groove (121), the bottom of the sleeve (22) is provided with a first locking bolt (222) adapted to the built-in nut (122), and the first locking bolt (222) is inserted into the built-in nut (122).

6. A swivel chair, characterized by, including supporting component (4), rotating component (5) and according to any one of claims 1-5 lean against the connection structure, rotating component (5) sets up between supporting component (4) and the connection structure of leaning against, rotating component's (5) top with lean against connection structure fixed connection, rotating component's (5) bottom and supporting component (4) fixed connection.

7. A swivel chair according to claim 6, characterized in that the swivel assembly (5) comprises a mounting seat (51), a swivel shaft (52) and a swivel seat (53), the mounting seat (51) is fixedly connected to the backrest connecting structure, the swivel shaft (52) is arranged at the end of the mounting seat (51) far away from the backrest connecting structure, the swivel seat (53) is arranged at the lower end of the swivel shaft (52), and the end of the swivel seat (53) far away from the swivel shaft (52) is fixedly connected with the support assembly (4).

8. A swivel chair according to claim 6, characterized in that the support assembly (4) comprises a support leg (42) and a connecting seat (41), the support leg (42) is arranged on the periphery of the connecting seat (41), a second locking bolt (411) is arranged at the bottom of the connecting seat (41), the second locking bolt (411) is circumferentially arranged at the bottom of the connecting seat (41) at an equal distance, and the bolt body of the second locking bolt (411) penetrates through the rotating seat (53) and is in threaded connection with the bottom of the rotating seat (53).