CN214156758U - Chair with linked chair seat and chair back - Google Patents

Abstract

The application relates to a chair of linkage of seat support back of the chair, connect in the back of the chair of bottom support, rotate the back of the chair and the seat support of sliding connection in the bottom support of connecting in the bottom support including bottom support, rotation, the seat support rotates to be connected in the back of the chair, is equipped with the elastic component that resets that is used for making the seat support keep at initial condition between bottom support and the seat support. When the chair is used, the back of a user leans backwards, the chair back rotates relative to the bottom support, and meanwhile, the chair back pushes the chair seat to slide relative to the bottom support, so that the chair seat slides towards one side far away from the chair back, and a human body is in a comfortable state. Leave the back of the chair at user's back, when rising, under the effect of the elastic component that resets, the seat support is pulled back initial position, and the back of the chair also returns initial position under the effect of seat support, no longer needs manual regulation, just automatic for taking next time and has prepared, improved user's use and experienced.

Description

Chair with linked chair seat and chair back

Technical Field

The application relates to the field of home furnishing, in particular to a chair with linked chair seat and chair back.

Background

Chairs are important furniture in the domestic life and office environment. Most of the existing chairs are integrally fixed, and in order to meet the increasingly rich requirements of people, some chairs with adjustable backrest angles are also available in the market.

Like application number CN 201922203848.5's patent, this patent provides a chair, including chair chassis, handrail, seat support and the back of the chair, the handrail is located on the chair chassis, be equipped with the slider on the seat support, be equipped with the walking constant head tank on the chair chassis, the slider wears to locate on the walking constant head tank and can slide and spacing on the walking constant head tank, the back of the chair is articulated with the seat support, the back of the chair rotates to be connected on the handrail.

When using, slide through the seat support, the seat support slides along with the slider slides and slides on the walking constant head tank, the seat support slides and drives the articulated back of the chair and rotates, when the back of the chair rotates required angle, make the slider be positioned on the walking constant head tank, perhaps can also be through rotating the back of the chair, make the back of the chair rotate required position, the back of the chair drives the articulated seat support and removes, the slider slides on the walking constant head tank and is positioned on the walking constant head tank at last, consequently, through adjusting seat support or the back of the chair all can realize back of the chair seat support linkage regulation.

To the correlation technique among the above-mentioned, the utility model people think there is the defect that needs artificial manual adjustment to reset.

SUMMERY OF THE UTILITY MODEL

In order to reset automatically, improve user's use and experience, the chair of seat back of the chair back linkage that this application provided adopts following technical scheme:

the utility model provides a chair of chair seat back of chair linkage, includes the bottom support, rotates the back of the chair, rotate the chair back and the seat support of sliding connection in the bottom support of connecting in the bottom support that connect in the bottom support, the seat support rotates to be connected in the back of the chair, be equipped with between bottom support and the seat support and be used for making the seat support keep the elastic component that resets at initial condition.

Through adopting above-mentioned technical scheme, when using, user's back leans on backward, and the relative bottom support of the back of the chair rotates, and here simultaneously, the back of the chair promotes the relative bottom support of seat support and slides to make the seat support slide towards keeping away from back of the chair one side, make the human body be in a comparatively comfortable state. Because the buttocks of the user generally move outwards when the back of the user leans backwards, the matching movement is more man-machine-friendly. Leave the back of the chair at user's back, when rising, under the effect of the elastic component that resets, the seat support is pulled back initial position, and the back of the chair also returns initial position under the effect of seat support, no longer needs manual regulation, just automatic for taking next time and has prepared, improved user's use and experienced.

Preferably, the bottom support includes fore-stock, after-poppet, is used for connecting the connecting rod of fore-stock and after-poppet, the after-poppet is used for connecting the back of the chair, sliding connection has universal bearing on the connecting rod, universal bearing passes through bearing frame fixed mounting in the seat support.

By adopting the technical scheme, the universal bearing can slide, the inclination angle change of the chair seat caused by the rotation of the chair back can be eliminated, the sliding stroke is increased, and the smooth movement of the chair seat and the chair back is ensured.

Preferably, at least two connecting rods are arranged at intervals along the width direction of the chair seat.

Through adopting above-mentioned technical scheme to can be more stable connect fore-stock and after-poppet.

Preferably, the connecting rod forms a guide plane, the guide plane is arranged in an inclined manner, one end, close to the front support, of the guide plane is higher than one end, close to the rear support, of the guide plane, and the seat is parallel to the guide plane in an initial state.

Through adopting above-mentioned technical scheme to let the user can be more stable take on the seat support, reduce the probability that the user down slides outwards and leads to it to leave the seat support.

Preferably, a reinforcing rod is arranged between every two adjacent connecting rods, and two ends of the reinforcing rod are respectively and fixedly connected to the two connecting rods.

Through adopting above-mentioned technical scheme to the wholeness between the connecting rod has been improved, the overall structure intensity of bottom support has been improved.

Preferably, the elastic component that resets one end is connected in seat support and the other end and is passed through the connecting piece and connect in the bottom support, the connecting piece is along the elastic component length direction sliding connection that resets in the stiffener, be equipped with the locking piece that is used for relative stiffener locking connecting piece on the connecting piece.

Through adopting above-mentioned technical scheme, the relative stiffener slip connecting piece of accessible to adjust the initial elastic potential energy of the elastic component that resets, thereby make the elastic component that resets have sufficient power can realize the reseing of seat support and back of the chair.

Preferably, the connecting piece is a screw rod, and the locking piece is in threaded connection with one end, far away from the elastic restoring piece, of the connecting piece and is abutted against the reinforcing rod.

Through adopting above-mentioned technical scheme, make the connecting piece fixed convenient operation relative bottom support through twisting the locking piece. When the position of the connecting piece relative to the bottom bracket needs to be adjusted, the locking piece only needs to be unscrewed.

Preferably, the back of the chair includes back of the chair frame, be provided with connecting bolt along back of the chair width direction on the after-poppet, connecting bolt passes back of the chair frame and rotates and connect in back of the chair frame, threaded connection has the lock nut who is used for adjusting back of the chair relative after-poppet resistance when rotating on the connecting bolt, lock nut threaded connection is in connecting bolt.

By adopting the technical scheme, the resistance which needs to be overcome when the chair back rotates relative to the bottom bracket can be adjusted by screwing the locking nut, so that the sensitivity of the chair back is adjusted to the degree required by a user.

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

1. the chair back and the chair seat can move in a linkage way, so that the use experience of a user is high;

2. the chair back and the chair seat can be automatically reset to the initial state;

3. simple structure, the operation is smooth and easy, and structural strength is high.

Drawings

Fig. 1 is a schematic structural diagram of the embodiment.

Fig. 2 is a partial schematic view of an embodiment.

Fig. 3 is an enlarged view at a in fig. 1.

Fig. 4 is a side view of the embodiment.

Fig. 5 is an enlarged view at B in fig. 2.

Description of reference numerals: 1. a bottom bracket; 2. a chair back; 3. a chair seat; 4. a restoring elastic member; 5. a front bracket; 6. a rear leg; 7. a connecting rod; 8. a reinforcing bar; 9. a connecting bolt; 10. locking the nut; 11. a guide plane; 12. a bearing seat; 13. a universal bearing; 14. a connecting member; 15. a locking member.

Detailed Description

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

The embodiment of the application discloses a chair with linked chair seat and chair back. Referring to fig. 1, a chair with a linked seat and backrest comprises a bottom bracket 1, a backrest 2 and a seat 3. Back of the chair 2 rotates to be connected in bottom support 1, and seat support 3 sliding connection is in bottom support 1, and seat support 3 rotates to be connected in back of the chair 2. A reset elastic part 4 is arranged between the bottom bracket 1 and the chair seat 3.

The user sits on seat support 3, and when the back leaned on backward, back of the chair 2 atress was relative bottom support 1 rotated, and back of the chair 2 promoted seat support 3 and slided relative bottom support 1 in the pivoted, realized 2 seat supports 3 linkage regulation of back of the chair. When the back of a user leaves the chair back 2, the chair back 2 loses the limiting force, reversely rotates relative to the bottom bracket 1 under the action of the reset elastic piece 4, and resets to the initial state.

Specifically, referring to fig. 1 and 2, the base bracket includes a front bracket 5, a rear bracket, and a connecting rod 7 for connecting the front bracket 5 and the rear bracket. The front bracket 5 is Contraband-shaped and is opened downwards. The rear support comprises two rear legs 6, and the height of the rear legs 6 is higher than that of the front support 5. The connecting rods 7 are provided with two connecting rods and respectively correspond to the two rear supports. One end of the connecting rod 7 is fixedly connected with the front bracket 5 and the other end is fixedly connected with the corresponding rear bracket. Be equipped with between two connecting rods 7 and be used for the stiffener 8 of reinforcing, stiffener 8 both ends are fixed connection in two connecting rods 7 respectively.

Referring to fig. 3, the seatback 2 includes a seatback 2 frame, and the seatback 2 frame is located between two rear legs 6. And the rear supporting legs 6 are provided with connecting bolts 9 along the width direction of the frame of the chair back 2, and the connecting bolts 9 penetrate through the frame of the chair back 2 and are rotatably connected with the frame of the chair back 2. So that the seat back 2 can rotate relative to the bottom bracket 1. The connecting bolt 9 is in threaded connection with a locking nut 10, and the locking nut 10 is in threaded connection with the connecting bolt 9. By screwing the lock nut 10, the resistance of the chair back 2 when rotating relative to the rear bracket is adjusted, thereby adjusting the flexibility of the chair back 2 when rotating relative to the bottom bracket 1.

Referring to fig. 2 and 4, the seat 3 is pivotally connected to the backrest 2 by hinges. The two connecting rods 7 form a guide plane 11, the guide plane 11 is arranged obliquely, and one end of the guide plane 11 close to the front support 5 is higher than one end of the guide plane 11 close to the rear support. In the initial state, the seat 3 is parallel to the guide plane 11. A bearing seat 12 is fixedly arranged on the lower end surface of the seat 3, and the bearing seat 12 is provided with two connecting rods 7 respectively corresponding to the two connecting rods. The bearing seat 12 is internally provided with a universal bearing 13, and the universal bearing 13 is sleeved outside the connecting rod 7 and is connected with the connecting rod 7 in a sliding manner.

The seat 3 is slidably connected to the base support 1 by means of a universal bearing 13. The universal bearing 13 can slide, and can eliminate the inclination angle change of the chair seat 3 caused by the rotation of the chair back 2 and increase the sliding stroke.

Referring to fig. 2 and 5, the return elastic member 4 is a spring. One end of the elastic restoring element 4 is fixedly connected to the chair seat 3, and the other end is connected to the reinforcing rod 8 through a connecting element 14. The connecting member 14 is a screw rod, and its axial direction is parallel to the sliding direction of the seat 3 relative to the bottom bracket 1. The connecting member 14 passes through the reinforcing bar 8 and is slidably connected to the reinforcing bar 8. One end of the connecting rod 7 is fixedly connected to the elastic restoring member 4, and one end of the connecting member 14 away from the elastic restoring member 4 is in threaded connection with a locking member 15. The locking member 15 abuts against the reinforcing bar 8. By screwing the locking member 15, the connecting member 14 can slide with respect to the reinforcing rod 8, thus allowing the preset elastic potential of the return elastic member 4 to be adjusted. The elastic restoring element 4 can ensure that the chair back 2 and the chair seat 3 can restore to the initial state without receiving external force.

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 (8)

1. A chair with linked chair seat and chair back is characterized in that: including bottom support (1), rotate to connect in back of the chair (2) of bottom support (1) and seat support (3) of sliding connection in bottom support (1), seat support (3) rotate to be connected in back of the chair (2), be equipped with between bottom support (1) and seat support (3) and be used for making seat support (3) keep in initial condition's elastic component (4) that resets.

2. A chair with linked seat and backrest as claimed in claim 1, wherein: bottom support (1) includes fore-stock (5), after-poppet, is used for connecting rod (7) of fore-stock (5) and after-poppet, the after-poppet is used for connecting the back of the chair (2), sliding connection has universal bearing (13) on connecting rod (7), universal bearing (13) are through bearing frame (12) fixed mounting in seat support (3).

3. A chair having a linked seat and backrest according to claim 2, wherein: the connecting rods (7) are at least arranged in two at intervals along the width direction of the chair seat (3).

4. A chair having a linked seat and backrest according to claim 3, wherein: connecting rod (7) form guide plane (11), guide plane (11) are the slope setting, just guide plane (11) are close to fore-stock (5) one end and are higher than guide plane (11) and are close to rear bracket one end, and when initial condition, seat support (3) are on a parallel with guide plane (11).

5. A chair having a linked seat and backrest according to claim 3, wherein: be equipped with stiffener (8) between two adjacent connecting rods (7), stiffener (8) both ends are fixed connection in two connecting rods (7) respectively.

6. The chair of claim 4, wherein: reset elastic component (4) one end and connect in bottom support (1) in seat support (3) and the other end through connecting piece (14), connecting piece (14) are along resetting elastic component (4) length direction sliding connection in stiffener (8), be equipped with locking piece (15) that are used for relative stiffener (8) locking connecting piece (14) on connecting piece (14).

7. The chair of claim 6, wherein: the connecting piece (14) is a screw rod, and the locking piece (15) is connected to one end, far away from the reset elastic piece (4), of the connecting piece (14) in a threaded mode and abuts against the reinforcing rod (8).

8. A chair having a linked seat and backrest according to claim 2, wherein: back of the chair (2) is including back of the chair (2) frame, be provided with connecting bolt (9) along back of the chair (2) width direction on the after-poppet, connecting bolt (9) pass back of the chair (2) frame and rotate and connect in back of the chair (2) frame, threaded connection has lock nut (10) that is used for adjusting back of the chair (2) resistance when relative after-poppet rotates on connecting bolt (9), lock nut (10) threaded connection is in connecting bolt (9).

Images