CN213757419U

CN213757419U - Angle-adjustable office chair

Info

Publication number: CN213757419U
Application number: CN202023170717.0U
Authority: CN
Inventors: 苏付团; 向光文
Original assignee: Foshan Zhongde Wenyi Furniture Manufacturing Co ltd
Current assignee: Foshan Zhongde Wenyi Furniture Manufacturing Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-07-23
Anticipated expiration: 2030-12-24

Abstract

The utility model relates to an office chair with adjustable angle relates to the field of chair, its include the base, set up in sit on the base the bench and set up in sit the back of the chair on the bench, it is provided with down the connecting seat to sit the bench bottom, the bottom position in the back of the chair outside is provided with the connecting seat, the connecting seat is provided with the drum down, it is provided with the pivot of rotation connection in the drum to go up the connecting seat, the drum is provided with the fastening components who goes on fixing to the pivot. The adjustable angle of sitting between bench and the back of the chair improves its travelling comfort.

Description

Angle-adjustable office chair

Technical Field

The application relates to the field of chairs, in particular to an angle-adjustable office chair.

Background

The office chair is defined narrowly as a back rest chair on which a person sits while performing a desktop work in a sitting posture, and is defined broadly as all chairs used in offices. Office chairs are a wide variety of types, but office chairs are tools that provide support for people.

Chinese patent No. CN211862329U discloses an office chair with simple installation, which comprises: the chair frame is formed by bending and/or welding steel pipes to form a main frame body, the main frame body is connected with a stool mounting frame at the stool part of the office chair, and the main frame body is connected with a chair back mounting frame at the chair back part of the office chair; the stool is arranged above the stool mounting frame and comprises a stool main board and a stool connecting part integrally connected to the rear part of the stool main board; the back of the chair, the back of the chair is installed in back of the chair mounting bracket front side, including back of the chair main part and the back of the chair connecting portion of a body coupling in back of the chair main part below, back of the chair connecting portion with sit bench connecting portion and pass through block and screw connection.

In view of the above-mentioned related technologies, the inventor believes that the back of the chair with different angles needs to be leaned on due to the difference of individual sitting habits, and the back of the chair and the stool are fixedly connected, so that the angle between the back of the chair and the stool is difficult to adjust, and the comfort is low.

SUMMERY OF THE UTILITY MODEL

In order to be able to adjust the angle between the chair back and the stool, the present application provides an angularly adjustable office chair.

The application provides an office chair with adjustable angle adopts following technical scheme:

the utility model provides an office chair with adjustable angle, includes the base, still including set up in sit on the base the bench and set up in sit the back of the chair on the bench, it is provided with down the connecting seat to sit the bench bottom, the bottom position in the back of the chair outside is provided with the connecting seat, the connecting seat is provided with the drum down, the drum internal rotation is connected with the pivot, it is provided with the connecting axle of being connected with the pivot to go up the connecting seat, the drum is provided with the fastening components who goes on fixing to the pivot.

Through adopting above-mentioned technical scheme, rotate the back of the chair, the connecting seat drives the pivot and rotates in the back of the chair accessible to can adjust the back of the chair and sit the angle between the bench, fastening components's setting can be fixed between drum and the pivot, thereby can fix the back of the chair and sit the bench, and then improve its travelling comfort.

Optionally, the fastening assembly comprises a fastening disc arranged at the end part of the cylinder and a fastening rod hinged to the end part of the rotating shaft, the end part of the rotating shaft extends out of the cylinder, one side, far away from the cylinder, of the fastening disc is provided with a plurality of clamping grooves matched with the fastening rod in a clamping mode, and the plurality of clamping grooves are arranged along the circumferential direction of the central axis of the fastening disc.

Through adopting above-mentioned technical scheme, when needs are fixed the back of the chair, pull the anchorage bar, make the anchorage bar joint in the draw-in groove of fastening disc to can fix between countershaft and the drum, and then fix the back of the chair.

Optionally, a rear connecting seat is arranged at a position, away from the sitting stool, on the outer side of the chair back, a rear connecting rod is arranged in the rear connecting seat, rear supporting rods for supporting the chair back are arranged at two opposite end portions of the rear connecting rod, and two ends, away from the rear connecting rod, of the rear supporting rods are connected through horizontal supporting rods.

By adopting the technical scheme, when the chair back is adjusted to be in a horizontal state, a user can lie down on the sitting stool and the chair back, and at the moment, the horizontal support rod can support the chair back, so that the phenomenon that the office chair turns backwards is reduced.

Optionally, the back connecting rod rotates with the back connecting seat to be connected, the back of the chair outside is provided with locking Assembly, locking Assembly including set up in the locking frame and the screw thread of back connecting seat one side wear to locate the locking screw of locking frame, locking screw runs through the back connecting seat, locking screw tip and back connecting rod outside butt.

By adopting the technical scheme, when the rear connecting rod is not needed, the rear connecting rod is rotated to reduce the occupied space of the rear supporting rod and improve the utilization rate of the space; when the horizontal support rod needs to support the chair back, the rear connecting rod is rotated to a corresponding angle, and then the locking screw rod is rotated, so that the end part of the locking screw rod is abutted against the outer side of the rear connecting rod, and the rear connecting rod is fixed.

Optionally, the position that the back bracing piece was corresponded in the back of the chair outside is provided with the joint seat, the joint seat is kept away from the one end of the back of the chair and is seted up with back bracing piece joint complex joint groove.

Through adopting above-mentioned technical scheme, when need not use the horizontal support pole, rotate the back connecting rod to make back bracing piece joint in the joint inslot of joint seat, be convenient for accomodate back bracing piece, reduce the space that back bracing piece occupy.

Optionally, the position of keeping away from the back of the chair of stool bottom articulates there is the leg bearing board, it is provided with fixed subassembly to sit between stool and the leg bearing board, fixed subassembly including articulate in the regulation pole of leg bearing board bottom, set up in sit the slide rail of stool bottom, articulate in adjust pole keep away from leg bearing board one end and sliding connection in the slide rail and to the mounting that the slide block goes on fixing.

By adopting the technical scheme, when a user needs to lie on the office chair and the chair back is flatly placed, the leg bearing plate is rotated to be in a horizontal state, so that the legs of the user can be conveniently supported, and the comfort of the user is improved; when the leg bearing plate needs to be fixed, the fixing piece is adjusted, and the sliding seat is fixed, so that the leg bearing plate is fixed.

Optionally, the two ends of the sliding rail are provided with openings, and one end of the sliding rail, which is far away from the leg bearing plate, is connected with a connecting block through a screw.

Through adopting above-mentioned technical scheme, can realize the detachable connection between connecting block and the slide rail, be convenient for install the sliding seat in the slide rail.

Optionally, a buffer sleeve is sleeved outside the horizontal support rod.

Through adopting above-mentioned technical scheme, the cushion collar can cushion the horizontal support pole to cushion the back of the chair, improve its travelling comfort.

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

1. the chair back is rotated, the chair back can drive the rotating shaft to rotate through the upper connecting seat, so that the angle between the chair back and the sitting stool can be adjusted, and the fastening assembly can fix the cylinder and the rotating shaft, so that the chair back and the sitting stool can be fixed, and the comfort of the chair back and the sitting stool is improved;

2. when the chair back is adjusted to be in a horizontal state, a user can lie on the sitting stool and the chair back, and at the moment, the horizontal support rod can support the chair back, so that the phenomenon that the office chair turns backwards is reduced; when a user needs to lie on the office chair and flatly places the chair back, the leg bearing plate is rotated to be in a horizontal state, so that the legs of the user can be conveniently supported, and the comfort of the user is improved.

Drawings

FIG. 1 is a schematic view of an angularly adjustable office chair;

FIG. 2 is a schematic view of a fastening assembly of the angularly adjustable office chair;

FIG. 3 is a schematic view of a leg rest plate and securing assembly of an angularly adjustable office chair.

Description of reference numerals: 1. a base; 2. a stool; 3. a chair back; 4. a lower connecting seat; 5. an upper connecting seat; 6. a cylinder; 7. a rotating shaft; 8. a yielding groove; 9. a connecting shaft; 10. fastening a disc; 11. a fastening rod; 12. a card slot; 13. a rear connecting seat; 14. a rear connecting rod; 15. a rear support bar; 16. a horizontal support bar; 17. locking the frame; 18. locking the screw rod; 19. a buffer sleeve; 20. a clamping seat; 21. a clamping groove; 22. a leg-bearing plate; 23. adjusting a rod; 24. a slide rail; 25. a sliding seat; 26. fixing the screw rod; 27. connecting blocks; 28. and (4) screws.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses office chair with adjustable angle. Referring to fig. 1, the office chair with adjustable angle comprises a base 1, a stool 2 and a chair back 3, wherein the stool 2 is horizontally arranged at the top of the base 1, the base 1 supports the stool 2, and the chair back 3 is arranged at the top of the stool 2 near one end. One side of the chair back 3 close to the stool 2 is the inner side of the chair back 3, and one side of the chair back 3 far away from the stool 2 is the outer side of the chair back 3.

Referring to fig. 1 and 2, base 1 bottom is the plane setting, the position level that base 1 bottom surface is close to back of the chair 3 is fixed with lower connecting seat 4, lower connecting seat 4 is located back of the chair 3 below, lower connecting seat 4 is rectangular shape setting, the position level that the back of the chair 3 outside is close to the bottom is fixed with connecting seat 5, it is located down connecting seat 4 top to go up connecting seat 5, it is rectangular shape setting equally to go up connecting seat 5, and the length direction of going up connecting seat 5 is parallel with the length direction of lower connecting seat 4, the one end level that seat bench 2 was kept away from to lower connecting seat 4 is fixed with drum 6, the length direction of drum 6 is parallel with the length direction of lower connecting seat 4. Drum 6 is the cavity setting, drum 6 internal rotation is connected with pivot 7, pivot 7 can be at drum 6 internal rotation, the groove 8 of stepping down has been seted up to the middle part position of drum 6 outer peripheral face, the groove 8 of stepping down extends along drum 6's outer peripheral face circumference, the corresponding position an organic whole that steps down groove 8 in the pivot 7 outside is connected with connecting axle 9, the length direction of connecting axle 9 is perpendicular with the length direction of pivot 7, and step down groove 8 and supply connecting axle 9 to pass, the one end that pivot 7 was kept away from to connecting axle 9 is fixed with last connecting seat 5 bottoms, and the turned angle of pivot 7 is 90 degrees.

Install two sets of fastening components on drum 6, two sets of fastening components are located the both ends that drum 6 is relative respectively, and fastening components includes fastening disc 10 and anchorage bar 11, and fastening disc 10 is installed in the position that is close to the tip in the drum 6 outside, and fastening disc 10 keeps away from the one end of drum 6 and offers the draw-in groove 12 of a plurality of rectangular shapes, and the length direction of draw-in groove 12 passes the central axis of fastening disc 10, and a plurality of draw-in grooves 12 arrange along the central axis circumference of fastening disc 10. The both ends that drum 6 is relative all are the opening setting, and the drum 6 outside is all stretched out at the both ends that pivot 7 is relative, and anchorage bar 11 articulates in pivot 7 tip, and anchorage bar 11 is rectangular shape, and anchorage bar 11 and draw-in groove 12 joint cooperation.

When the angle of the chair back 3 needs to be adjusted, the fastening rod 11 is pulled to separate the fastening rod 11 from the clamping groove 12, the angle between the chair back 3 and the sitting stool 2 which needs to be adjusted is adjusted to the chair back 3, the fastening rod 11 is aligned with the clamping groove 12 at the corresponding position, then the fastening rod 11 is pulled to clamp the fastening rod 11 into the clamping groove 12, and therefore the rotating shaft 7 and the cylinder 6 are rotated to fix the chair back 3 and the sitting stool 2.

Referring to fig. 1, the position of keeping away from bench 2 outside back of the chair 3 is fixed with back connecting seat 13, back connecting seat 13 is rectangular form, the length direction of back connecting seat 13 is parallel with the length direction of last connecting seat 5, back connecting seat 13 internal rotation is connected with back connecting rod 14, connecting seat 5 is all stretched out at the relative both ends of back connecting rod 14, the equal body coupling in the relative both ends of back connecting rod 14 has back bracing piece 15, the length direction of back bracing piece 15 is perpendicular with the length direction of back connecting rod 14, the one end that back bracing piece 15 kept away from back connecting rod 14 is connected through a horizontal support bar 16, the length direction of horizontal support bar 16 is parallel with the length direction of back connecting rod 14, and back bracing piece 15 and horizontal support bar 16 are connected as an organic whole. In addition, locking Assembly is installed in the back of the chair 3 outside, and locking Assembly includes locking frame 17 and locking screw 18, and locking frame 17 is installed in back connecting seat 13 one end, and locking screw 18 screw thread is worn to locate locking frame 17, and locking screw 18 one end runs through back connecting seat 13 to in stretching into back connecting seat 13, locking screw 18's length direction is perpendicular with the length direction of back connecting

rod

14, and 18 tip of locking screw and the outside butt of back connecting rod 14.

When a user needs to lie down on the office chair, the chair back 3 is adjusted to be in a horizontal state, then the rear connecting rod 14 is rotated, the length direction of the rear connecting rod 14 is perpendicular to the outer side face of the chair back 3, then the locking screw 18 is rotated, the end part of the locking screw 18 is abutted to the outer side of the rear connecting rod 14, the rear connecting rod 14 is fixed, the horizontal supporting rod 16 can support the chair back 3, and the phenomenon that the office chair turns backwards is reduced.

In order to buffer the chair back 3, a buffer sleeve 19 is fixedly sleeved on the outer side of the horizontal support rod 16, and the buffer sleeve 19 can buffer the horizontal support rod 16, so that the comfort of the office chair is improved. In the present embodiment, the cushion sheath 19 is made of a rubber material.

The position that the back bracing piece 15 is corresponded in the 3 outsides of the back of the chair has joint seat 20, and joint seat 20 is located the 3 outsides of the back of the chair and is close to the position of horizontal support bar 16, and joint seat 20 keeps away from the one end of the back of the chair 3 and has seted up joint groove 21, and joint groove 21 cooperates with the 15 joint of back bracing piece. In this embodiment, the latch base 20 is made of plastic and has a certain plasticity. When the horizontal support bar 16 is not needed, the rear connecting bar 14 is correspondingly rotated, and the rear support bar 15 is clamped in the clamping groove 21 of the clamping seat 20, so that the occupied area of the rear support bar 15 and the horizontal support bar 16 is reduced.

Referring to fig. 1 and 3, a position of the bottom surface of the stool 2 far away from the chair back 3 is hinged with a leg support plate 22 through a hinge, the width of the leg support plate 22 is the same as that of the stool 2, a fixing assembly is installed between the stool 2 and the leg support plate 22, and the stool 2 and the leg support plate 22 are fixed through the fixing assembly. When a user needs to lie down on the office chair, and the chair back 3 is adjusted to be in a horizontal state, the leg bearing plate 22 is rotated to be in a horizontal state, and then the leg bearing plate 22 is fixed through the fixing assembly, so that the legs of the user can be placed on the leg bearing plate 22, and the use comfort is improved.

Referring to fig. 3, the fixing assemblies are provided in two groups, each fixing assembly includes an adjusting rod 23, a sliding rail 24, a sliding seat 25 and a fixing member, one end of each adjusting rod 23 is hinged to one side of the leg-supporting plate 22 close to the sitting stool 2, the sliding rail 24 is horizontally fixed to the bottom of the sitting stool 2 corresponding to the position of the adjusting rod 23, the length direction of the sliding rail 24 is perpendicular to the length direction of a hinge shaft of the adjusting rod 23, the sliding seat 25 is slidably connected in the sliding rail 24, and one end of the adjusting rod 23 far away from the leg-supporting plate 22 is hinged to the sliding seat 25. In this embodiment, the fixing member is a fixing screw 26, the fixing screw 26 is threaded through the outer side of the slide rail 24, and the fixing screw 26 penetrates through the inner side and the outer side of the slide rail 24. When the leg support plate 22 is in a horizontal state, the sliding seat 25 can slide to a position corresponding to the fixing screw 26. When the leg support plate 22 needs to be fixed, the fixing screw 26 is correspondingly rotated to bring the end of the fixing screw 26 into contact with the slide holder 25, thereby fixing the slide holder 25 in the slide rail 24.

To facilitate the installation of the sliding seat 25 in the sliding rail 24, the two opposite ends of the sliding rail 24 are open. In order to reduce the phenomenon that the sliding seat 25 is separated from the sliding rail 24 when sliding, a connecting block 27 is installed at one end of the sliding rail 24 far away from the leg bearing plate 22, and the connecting block 27 is detachably installed at the end of the sliding rail 24 through a screw 28.

The implementation principle of the office chair with the adjustable angle in the embodiment of the application is as follows: a user sits on the sitting stool 2 and leans against the chair back 3, when the angle of the chair back 3 needs to be adjusted, the fastening rod 11 is pulled to enable the fastening rod 11 to be separated from the clamping groove 12, the angle between the chair back 3 and the sitting stool 2 which needs to be adjusted enables the fastening rod 11 to be aligned with the clamping groove 12 in the corresponding position, then the fastening rod 11 is pulled to enable the fastening rod 11 to be clamped into the clamping groove 12, and therefore the chair back 3 and the sitting stool 2 are fixed; when the user needs to lie flat on the office chair, adjust back of the chair 3 to the horizontality, then rotate back connecting rod 14, make the length direction of back connecting rod 14 perpendicular with back of the chair 3 lateral surface, then rotate locking screw 18, make locking screw 18 tip and the 14 outside butt of back connecting rod, at this moment, horizontal support pole 16 can support back of the chair 3, cushion collar 19 can cushion horizontal support pole 16, then rotate leg bearing board 22 to the horizontality, and fix sliding seat 25 through set screw 26, make user's shank can be put on leg bearing board 22, the travelling comfort of use is improved.

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. An office chair with adjustable angle, includes base (1), its characterized in that: still including set up in sit bench (2) on base (1) and set up in sit back of the chair (3) on bench (2), sit bench (2) bottom and be provided with down connecting seat (4), the bottom position in the back of the chair (3) outside is provided with connecting seat (5), connecting seat (4) are provided with drum (6) down, drum (6) internal rotation is connected with pivot (7), it is provided with connecting axle (9) of being connected with pivot (7) to go up connecting seat (5), drum (6) are provided with and carry out the fastening components who fixes to pivot (7).

2. An angularly adjustable office chair as claimed in claim 1, wherein: the fastening assembly comprises a fastening disc (10) arranged at the end part of the cylinder (6) and a fastening rod (11) hinged to the end part of the rotating shaft (7), the end part of the rotating shaft (7) extends out of the outer side of the cylinder (6), one side, far away from the cylinder (6), of the fastening disc (10) is provided with a plurality of clamping grooves (12) matched with the fastening rod (11) in a clamping mode, and the clamping grooves (12) are circumferentially arranged along the central axis of the fastening disc (10).

3. An angularly adjustable office chair as claimed in claim 1, wherein: the position of keeping away from bench (2) outside the back of the chair (3) is provided with back connecting seat (13), be provided with back connecting rod (14) in back connecting seat (13), the relative both ends of back connecting rod (14) all are provided with back bracing piece (15) that carry out the support to back of the chair (3), two the one end that back connecting rod (14) were kept away from in back bracing piece (15) is passed through horizontal support rod (16) and is connected.

4. An angularly adjustable office chair as claimed in claim 3, wherein: back connecting rod (14) rotate with back connecting seat (13) and be connected, the back of the chair (3) outside is provided with locking Assembly, locking Assembly including set up in locking frame (17) and the screw thread of back connecting seat (13) one side wear to locate locking screw (18) of locking frame (17), locking screw (18) run through back connecting seat (13), locking screw (18) tip and back connecting rod (14) outside butt.

5. An angularly adjustable office chair as claimed in claim 4, wherein: the position that back bracing piece (15) were corresponded in the back of the chair (3) outside is provided with joint seat (20), joint seat (20) keep away from the one end of back of the chair (3) seted up with back bracing piece (15) joint complex joint groove (21).

6. An angularly adjustable office chair as claimed in claim 1, wherein: sit the position that bench (2) bottom kept away from back of the chair (3) and articulate and have leg bearing board (22), it is provided with fixed subassembly to sit between bench (2) and leg bearing board (22), fixed subassembly including articulate in regulation pole (23) of leg bearing board (22) bottom, set up in slide rail (24) of sitting bench (2) bottom, articulate in adjust pole (23) keep away from leg bearing board (22) one end and sliding seat (25) and to sliding seat (25) carry out the fixed mounting in slide rail (24).

7. An angularly adjustable office chair as claimed in claim 6, wherein: slide rail (24) both ends are the opening setting, the one end that the legging board (22) was kept away from in slide rail (24) is connected with connecting block (27) through screw (28).

8. An angularly adjustable office chair as claimed in claim 3, wherein: and a buffer sleeve (19) is sleeved on the outer side of the horizontal supporting rod (16).