CN218978420U

CN218978420U - Backrest structure of integrated headrest waist support

Info

Publication number: CN218978420U
Application number: CN202223121494.8U
Authority: CN
Inventors: 冯元峰; 王军; 厉威杨; 厉伟军; 陈倩
Original assignee: Kuka Home Co Ltd
Current assignee: Kuka Home Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-05-09
Anticipated expiration: 2032-11-22

Abstract

The utility model belongs to the technical field of furniture articles and specifically relates to a back structure that integrated headrest waist held in palm is related to, including back skeleton, back skeleton's upper portion articulates there is the headrest skeleton, back skeleton articulates there is the waist to hold in the palm the skeleton, the waist holds in the palm the skeleton and is located the below of headrest skeleton, back skeleton is provided with the regulation headrest skeleton's swing angle's first adjustment mechanism, back skeleton is provided with the regulation the second adjustment mechanism that waist held in the palm the swing angle of skeleton. The application has the effects of meeting the use demands of different crowds on high-back sofas and improving the use comfort.

Description

Backrest structure of integrated headrest waist support

Technical Field

The application relates to the technical field of furniture articles, in particular to a back rest structure of an integrated headrest waist support.

Background

The sofa is a chair with soft cushion, and the sofa is a soft furniture. Sofa is a furniture necessary for many families, and the sofa sold on the market generally comprises three types of low-back sofa, high-back sofa and common sofa between the two.

The high-back sofa comprises a sofa seat and a back rest arranged on the sofa seat, wherein the back rest is provided with a headrest part and a waist support part in a protruding mode, so that the back brain and the waist of a human body can lean against the back rest surface of the back rest at the same time. With respect to the related art in the above, there are the following drawbacks: the headrest portion and the waist support portion of the high-back sofa in the current market are fixed, the functionality is single, and the use requirements of different crowds are difficult to meet, so that further improvement is needed.

Disclosure of Invention

In order to meet the use demands of different crowds on high-back sofas, the application provides a backrest structure of an integrated headrest waist support.

The application provides a back structure of integrated headrest waist holds in palm adopts following technical scheme:

the utility model provides an integrated headrest waist holds in palm back structure, includes back skeleton, back skeleton's upper portion articulates there is the headrest skeleton, back skeleton articulates there is the waist to hold in the palm the skeleton, the waist holds in the palm the skeleton and is located the below of headrest skeleton, back skeleton is provided with the regulation headrest skeleton's swing angle's first adjustment mechanism, back skeleton is provided with the regulation the second adjustment mechanism of swing angle of waist support skeleton.

Through adopting above-mentioned technical scheme, when the user uses the sofa of being made by this back skeleton, the user can adjust headrest skeleton's swing angle through first adjustment mechanism according to self height, adjust headrest skeleton's bulge degree and with the relative position of leaning on the skeleton, thereby make headrest skeleton adaptation laminating more in user's back brain, adjust the swing angle of waist support skeleton through second adjustment mechanism, adjust waist support skeleton's bulge degree and with lean on the relative position of skeleton, make waist support skeleton adaptation laminating in user's waist, satisfy the user demand of different crowds to the back sofa and improve use comfort.

Preferably, the headrest framework comprises a headrest supporting arm and a headrest connecting plate fixedly connected with the headrest supporting arm, an upper connecting plate is fixed on the backrest framework, and the headrest connecting plate is hinged with the upper connecting plate through a headrest hinge shaft.

Through adopting above-mentioned technical scheme, through being provided with headrest connecting plate, upper connecting plate and headrest articulated shaft, realize articulating headrest support arm in the back skeleton.

Preferably, the first adjusting mechanism comprises a first telescopic adjusting arm and an extension arm, the first telescopic adjusting arm is located below the headrest framework, one end of the first telescopic adjusting arm is hinged to the backrest framework, one end of the extension arm is connected to the other end of the first telescopic adjusting arm, and one end, away from the first telescopic adjusting arm, of the extension arm is rotationally connected to the headrest connecting plate.

Through adopting above-mentioned technical scheme, when the length of first flexible adjusting arm contracts, through the axis downward swing of extension arm pulling headrest connecting plate around headrest articulated shaft's axis, and then realize the purpose to headrest support arm's swing angle regulation, when the length extension of first flexible adjusting arm, headrest support arm swing resets.

Preferably, the first telescopic adjusting arm is a first electric push rod, the cylinder body of the first electric push rod is hinged to the back frame, and the end part of the extension arm is fixedly connected to a piston rod of the first electric push rod.

Through adopting above-mentioned technical scheme, realize the headrest support arm through the flexible of first electric putter's piston rod and carry out the luffing motion regulation around the axis of headrest articulated shaft, regulating speed is fast.

Preferably, an elastic reset piece forcing the headrest support arm to turn upwards around the axis of the headrest hinge shaft is arranged between the headrest connection plate and the upper connection plate.

Through adopting above-mentioned technical scheme, be provided with the elasticity piece that resets between headrest connecting plate and the upper connecting plate, improve headrest support arm and reset the effort of gyration for headrest support arm's gyration is more smooth and easy.

Preferably, the headrest connecting plate is provided with a connecting part, the connecting part is provided with a sliding groove, the sliding groove is an arc-shaped groove, the axis of the sliding groove is coincident with the axis of the headrest hinge shaft, the end part of the extension arm is fixedly provided with an inserting rod which rotates to penetrate through the sliding groove, and the inserting rod slides along the extending direction of the sliding groove.

Through adopting above-mentioned technical scheme, through setting up the sliding tray, and the inserted bar on the extension arm slides and connect in the sliding tray for there is little upset space between headrest skeleton and the back skeleton, and under the effect of elasticity restoring to the throne the piece, inserted bar perisporium butt in the lower extreme inner peripheral wall of sliding tray, receives the effort of turning over downwards when headrest skeleton's free end, and headrest skeleton can carry out the elastic turnover, realizes making headrest skeleton possess the pressure resistance ability.

Preferably, the headrest connecting plate is provided with a wear-resistant bushing sliding along the extending direction of the sliding groove, and the insert rod is rotatably inserted into the wear-resistant bushing.

Through adopting above-mentioned technical scheme, be provided with wear-resisting bush, reduce the possibility of inserted bar and headrest connecting plate direct contact, improve the durability of inserted bar and headrest connecting plate.

Preferably, the waist support framework comprises a waist support plate and a waist support connecting plate fixedly connected to the waist support plate, the back support framework is provided with a lower connecting plate, and the waist support connecting plate is hinged with the lower connecting plate through a waist support hinge shaft.

Through adopting above-mentioned technical scheme, through being provided with waist support connecting plate, lower connecting plate and waist support articulated shaft, realize articulated in back skeleton with the waist layer board.

Preferably, the second adjusting mechanism comprises a second telescopic adjusting arm, one end of the second telescopic adjusting arm is hinged to the backrest framework, and the other end of the second telescopic adjusting arm is hinged to the waist support connecting plate.

Through adopting above-mentioned technical scheme, when the length extension of the flexible regulating arm of second, drive the free end of waist support connecting plate and support the axis swing of articulated shaft around the waist to adjust the relative position of waist layer board, make the waist that the waist layer board formed hold in the palm portion adaptation laminating in user's waist, when the length shrink of the flexible regulating arm of second, waist layer board swing resets.

Preferably, the lower part both sides of back skeleton all are provided with grafting slide rail, and grafting slide rail is used for with the grafting cooperation of couch seat.

By adopting the technical scheme, the backrest framework is provided with the plug-in sliding rail, so that plug-in assembly of the backrest framework and the sofa seat is realized, and the installation of the high-back sofa is facilitated.

In summary, the utility model has the following beneficial effects:

1. the user can adjust the swing angle of the headrest framework through the first adjusting mechanism according to the height of the user, and adjust the protruding degree of the headrest framework and the relative position of the headrest framework and the backrest framework, so that the headrest framework is more suitable for being attached to the back brain of the user, and the swing angle of the waist support framework is adjusted through the second adjusting mechanism, and the protruding degree of the waist support framework and the relative position of the waist support framework are adjusted, so that the waist support framework is suitable for being attached to the waist of the user, the use requirements of different crowds on high-back sofas are met, and the use comfort is improved;

2. through setting up the sliding tray, and the inserted bar on the extension arm slides and connect in the sliding tray for there is little upset space between headrest skeleton and the back skeleton, under the effect of elasticity restoring to the throne the spare in the normality, inserted bar perisporium butt in the lower extreme inner peripheral wall of sliding tray, receives the effort of turning over down when the free end of headrest skeleton, and headrest skeleton can carry out the elastic turnover, realizes making headrest skeleton possess the pressure resistance ability.

Drawings

FIG. 1 is a schematic overall construction of a back rest structure of an integrated headrest lumbar support;

FIG. 2 is a schematic view of the connection structure of the headrest connection plate and the upper connection plate;

FIG. 3 is a schematic structural view of a second adjustment mechanism;

fig. 4 is a schematic view of a connection structure of the lumbar support frame and the back frame.

In the figure, 1, a back frame; 11. back the main rod; 12. a backrest reinforcing rod; 13. a bow spring; 14. a fixing seat; 15. inserting a sliding rail; 16. a first mounting bar; 17. a second mounting bar; 18. an upper connecting plate; 181. a limit clamping groove; 19. a lower connecting plate; 10. a limit button; 2. a headrest framework; 21. a headrest support arm; 211. a headrest crossbar; 212. a headrest vertical rod; 22. a headrest connection plate; 23. a headrest hinge shaft; 24. a connection part; 25. a sliding groove; 26. wear-resistant bushings; 27. a limit column; 28. a clockwork spring; 3. a waist support framework; 31. a waist support plate; 32. a waist support connecting plate; 33. a waist support hinge shaft; 4. a first adjustment mechanism; 41. a first telescopic adjustment arm; 42. an extension arm; 43. a rod; 5. a second adjustment mechanism; 51. a second telescopic adjustment arm; 52. a mounting base; 53. a driving arm; 54. and connecting the cross bars.

Detailed Description

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

The embodiment of the application discloses back structure that integrated headrest waist held in palm, refer to fig. 1, including back skeleton 1, back skeleton 1 includes that a pair of back mobile jib 11 that is parallel arrangement and fixed connection are leaned on back stiffener 12 between two back mobile jib 11 lower parts, fixedly connected with bow spring 13 between the upper portion of two back mobile jib 11, the lower part lateral wall fixedly connected with fixing base 14 of back mobile jib 11, fixing base 14 lateral wall fixedly connected with grafting slide rail 15, grafting slide rail 15 is used for pegging graft the cooperation with the couch seat.

Referring to fig. 1 and 2, a first mounting rod 16 is fixedly connected to the inner side wall of one fixing seat 14, a second mounting rod 17 is fixedly connected to the inner side wall of the other fixing seat 14, and upper connecting plates 18 located above the bow springs 13 are fixedly connected to the upper portions of the two back main rods 11. The upper portion of the back rest frame 1 is hinged with a headrest frame 2, the headrest frame 2 comprises a headrest support arm 21 and a headrest connecting plate 22 fixedly connected to the headrest support arm 21, the headrest support arm 21 comprises a headrest cross bar 211 and a pair of headrest vertical bars 212 fixedly connected to the headrest cross bar 211, and the headrest support arm 21 is . The headrest connecting plates 22 are provided with two headrest connecting plates which are respectively and correspondingly fixedly connected to the headrest vertical rods 212, and the headrest connecting plates 22 and the upper connecting plates 18 are hinged through headrest hinge shafts 23.

One side of the headrest connecting plate 22 above the first mounting rod 16 protrudes to have a connecting portion 24, the connecting portion 24 is provided with a sliding groove 25, the sliding groove 25 is an arc-shaped groove, the axis of the sliding groove 25 is coincident with the axis of the headrest hinge shaft 23, and the headrest connecting plate 22 is provided with a wear-resistant bushing 26 sliding along the extending direction of the sliding groove 25. The back frame 1 is provided with a first adjusting mechanism 4 that drives the free end of the headrest connecting plate 22 to turn down to adjust the swing angle of the headrest connecting plate 22, and the first adjusting mechanism 4 includes a first telescopic adjusting arm 41 and an extension arm 42. The first flexible adjusting arm 41 is located the below of headrest skeleton 2, and first flexible adjusting arm 41 is first electric putter, and second installation pole 17 is located to first electric putter's cylinder body rotation cover, and the one end fixedly connected with of extension arm 42 is in first electric putter's piston rod, and the other end fixedly connected with inserted bar 43 of extension arm 42, and inserted bar 43 rotates and inserts and locate wear-resisting bush 26.

The back main rod 11 is fixedly connected with a limit buckle 10, the limit buckle 10 is provided with a U-shaped clamping groove, and the extension arm 42 is embedded in the U-shaped clamping groove of the limit buckle 10 to limit the extension arm 42 to slide along the direction parallel to the headrest cross rod 211. The outside wall protrusion fixedly connected with spacing post 27 of headrest connecting plate 22, when headrest connecting plate 22 upwards overturns to spacing post 27 butt in the up end of upper connecting plate 18, the axis coincidence of headrest montant 212 and the axis of back mobile jib 11 makes headrest framework 2 upset to vertical state. The upper end face of the upper connecting plate 18 is provided with a limit clamping groove 181 for embedding the limit post 27, when the limit post 27 is embedded into the limit clamping groove 181, the headrest framework 2 is turned to an inclined state, and the swing angle of the headrest framework 2 from the vertical state to the inclined state is 60 degrees.

An elastic restoring member for forcing the headrest support arm 21 to turn upward to a vertical state around the axis of the headrest hinge shaft 23 is arranged between the headrest connection plate 22 and the upper connection plate 18 above the second mounting rod 17, in this embodiment, the elastic restoring member is a spring 28, the spring 28 is wound around the headrest hinge shaft 23, one end of the spring 28 is fixedly connected to the upper connection plate 18, and the other end of the spring 28 is fixedly connected to the headrest connection plate 22.

Referring to fig. 1 and 3, the waist support frame 3 includes a waist support plate 31 and a waist support connection plate 32 fixedly connected to the waist support plate 31, the length direction of the waist support plate 31 is parallel to the length direction of the headrest cross bar 211, and the waist support connection plate 32 is provided with two ends respectively corresponding to and fixedly connected to the waist support plate 31. The back main rod 11 is hinged with a lower connecting plate 19 positioned above the back reinforcing rod 12, and the upper part of the lower connecting plate 19 is hinged with the upper part of the waist support connecting plate 32 through a waist support hinge shaft 33.

Referring to fig. 3 and 4, the backrest main rod 11 is provided with a second adjusting mechanism 5 for adjusting the swing angle of the lumbar support connecting plate 32, the second adjusting mechanism 5 includes a second telescopic adjusting arm 51, an installation seat 52 and a driving arm 53, in this embodiment, the second telescopic adjusting arm 51 is a second electric push rod, one second electric push rod is arranged, a cylinder body of the second electric push rod is rotationally sleeved on the second installation rod 17, the installation seat 52 is installed on a piston rod of the second electric push rod, a connecting cross rod 54 is fixedly connected with a side wall of the installation seat 52, two driving arms 53 are provided, one end of one driving arm 53 is fixedly connected with the installation seat 52, one end of the other driving arm 53 is fixedly connected with the connecting cross rod 54, and the other ends of the two driving arms 53 are respectively correspondingly hinged to the middle part of the lumbar support connecting plate 32.

The implementation principle of the backrest structure of the integrated headrest waist support of the embodiment of the application is as follows: when a user uses the sofa made of the backrest frame 1, when the user needs to adjust the swing angle of the headrest frame 2, the piston rod of the first electric push rod contracts and pulls the headrest connecting plate 22 to rotate through the extension arm 42, so that the headrest supporting arm 21 swings downwards around the axis of the headrest hinge shaft 23 to adjust the protruding degree of the headrest frame 2 and the relative position of the headrest frame 1, the headrest frame 2 is more suitable for being attached to the back brain of the user, and the spring 28 forces the headrest connecting plate 22 to rotate and reset to a vertical state in the extension process of the piston rod of the first electric push rod.

When the user needs to adjust the swing angle of waist layer board 31, when the piston rod of second electric putter stretches, drive the free end of waist support connecting plate 32 through mount pad 52, actuating arm 53 and swing around the axis of waist support articulated shaft 33 to adjust the relative position of waist layer board 31, make the waist that waist layer board 31 formed hold in the palm the portion adaptation laminating in the waist of user, when the piston rod of second electric putter shortens, waist layer board 31 swing resets, satisfies the user demand of different crowds to the high back sofa and improves use comfort.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a back structure of integrated headrest waist holds in palm which characterized in that: the novel waist support comprises a backrest framework (1), wherein a headrest framework (2) is hinged to the upper portion of the backrest framework (1), a waist support framework (3) is hinged to the backrest framework (1), the waist support framework (3) is located below the headrest framework (2), a first adjusting mechanism (4) for adjusting the swing angle of the headrest framework (2) is arranged on the backrest framework (1), and a second adjusting mechanism (5) for adjusting the swing angle of the waist support framework (3) is arranged on the backrest framework (1); the headrest framework (2) comprises a headrest supporting arm (21) and a headrest connecting plate (22) fixedly connected to the headrest supporting arm (21), the backrest framework (1) is fixedly provided with an upper connecting plate (18), and the headrest connecting plate (22) and the upper connecting plate (18) are hinged through a headrest hinge shaft (23); the first adjusting mechanism (4) comprises a first telescopic adjusting arm (41) and an extension arm (42), the first telescopic adjusting arm (41) is located below the headrest framework (2), one end of the first telescopic adjusting arm (41) is hinged to the backrest framework (1), one end of the extension arm (42) is connected to the other end of the first telescopic adjusting arm (41), and one end, away from the first telescopic adjusting arm (41), of the extension arm (42) is rotatably connected to the headrest connecting plate (22); the waist support framework (3) comprises a waist support plate (31) and a waist support connecting plate (32) fixedly connected to the waist support plate (31), the back support framework (1) is provided with a lower connecting plate (19), and the waist support connecting plate (32) and the lower connecting plate (19) are hinged through a waist support hinge shaft (33); the second adjusting mechanism (5) comprises a second telescopic adjusting arm (51), one end of the second telescopic adjusting arm (51) is hinged to the back frame (1), and the other end of the second telescopic adjusting arm (51) is hinged to the waist support connecting plate (32).

2. The back structure of an integrated headrest lumbar support according to claim 1, wherein: the first telescopic adjusting arm (41) is a first electric push rod, the cylinder body of the first electric push rod is hinged to the back frame (1), and the end part of the extension arm (42) is fixedly connected to a piston rod of the first electric push rod.

3. The back structure of an integrated headrest lumbar support according to claim 1, wherein: an elastic reset piece which forces the headrest supporting arm (21) to turn upwards around the axis of the headrest hinging shaft (23) is arranged between the headrest connecting plate (22) and the upper connecting plate (18).

4. A back structure of an integrated headrest lumbar support according to claim 3, wherein: the headrest connecting plate (22) is provided with a connecting part (24), the connecting part (24) is provided with a sliding groove (25), the sliding groove (25) is an arc-shaped groove, the axis of the sliding groove (25) is coincident with the axis of the headrest hinge shaft (23), the end part of the extension arm (42) is fixedly provided with a plug rod (43) which rotates and penetrates through the sliding groove (25), and the plug rod (43) slides along the extending direction of the sliding groove (25).

5. The back structure of the integrated headrest lumbar support according to claim 4, wherein: the headrest connecting plate (22) is provided with a wear-resistant bushing (26) sliding along the extending direction of the sliding groove (25), and the insert rod (43) is rotatably inserted into the wear-resistant bushing (26).

6. The back structure of an integrated headrest lumbar support according to claim 1, wherein: the two sides of the lower part of the backrest framework (1) are provided with inserting sliding rails (15), and the inserting sliding rails (15) are used for being matched with a sofa seat in an inserting mode.