CN210526350U

CN210526350U - Car seat with adjustable backrest supporting curved surface

Info

Publication number: CN210526350U
Application number: CN201921737641.XU
Authority: CN
Inventors: 邱宗敏
Original assignee: Zhejiang Institute of Communications
Current assignee: Zhejiang Institute of Communications
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-05-15
Anticipated expiration: 2029-10-16

Abstract

The utility model discloses a back supports curved surface adjustable car seat, including cushion (1), back and headrest (2), the back includes hollow back casing (3), and the front side of back casing (3) is equipped with cushion (4), and back casing (3) and cushion (4) are overlapped jointly and are located back cover (5), and the lower part of back casing (3) front side is equipped with through-hole (8), is equipped with adjustment mechanism in through-hole (8), adjustment mechanism can be at through-hole (8) within range upper and lower back-and-forth movement. The utility model has the advantages of adjustable supporting surface of the backrest, and is not easy to cause fatigue.

Description

Car seat with adjustable backrest supporting curved surface

Technical Field

The utility model belongs to car seat field of family car especially relates to a back supports curved surface adjustable car seat.

Background

The automobile seat is an important component of an automobile and determines the comfort level of the automobile to a great extent. The automobile seat consists of a cushion, a backrest and a headrest, wherein the backrest is used for supporting the back of a human body (the back comprises a back part and a waist part). Because the backrest is already shaped when leaving factory, the shape of the supporting curved surface which is attached to the back of a human body on the backrest is fixed and cannot be adjusted, so that the waist of a large number of people cannot be effectively supported when sitting on the automobile seat, or the waist is excessively supported, and fatigue is easily caused. Therefore, the conventional automobile seat has the defect that the back support curved surface is fixed and unadjustable, and is easy to cause fatigue.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a back supports curved surface adjustable car seat. The utility model has the advantages of adjustable supporting surface of the backrest, and is not easy to cause fatigue.

The technical scheme of the utility model: the utility model provides a curved surface adjustable car seat is supported to back, includes cushion, back and headrest, the back includes hollow back casing, and the front side of back casing is equipped with the cushion, and back casing and cushion are together overlapped and are located the back cover, and the lower part of back casing front side is equipped with the through-hole, is equipped with adjustment mechanism in the through-hole, adjustment mechanism can be at through-hole within range upper and lower back-and-forth movement.

In the automobile seat with the adjustable backrest support curved surface, the adjusting mechanism comprises a backup plate arranged in the through hole, the rear side of the backup plate is provided with a telescopic device, and the telescopic device is connected with the backrest shell through a lifting device.

In the automobile seat with the adjustable backrest support curved surface, the telescopic device comprises an inclined rotating plate and a lifting plate which are sequentially positioned at the rear side of the backrest plate; a rotating shaft is arranged between the backup plate and the tilting plate, a first support and a second support are arranged on the rotating shaft, the rotating shaft is rotatably connected with the backup plate through the first support, and the rotating shaft is rotatably connected with the tilting plate through the second support; be equipped with first guide arm and screw rod between tilting plate and the lifter plate, the one end of first guide arm with tilt the board fixed, the other end passes the lifter plate, be equipped with the first guide pin bushing fixed with the lifter plate on the first guide arm, the one end of screw rod with tilt the board ball articulated, the other end and lifter plate threaded connection, be equipped with passive bevel gear on the first screw rod, passive bevel gear passes through initiative bevel gear and connects the primary shaft, the tip of primary shaft passes back casing and back cover in proper order, the tip of primary shaft is equipped with first hand wheel.

In the automobile seat with the adjustable backrest support curved surface, the lifting device comprises a rotating rod positioned at the rear side of the lifting plate, bearings are arranged at two ends of the rotating rod, the rotating rod is rotatably connected with the backrest shell through the bearings, a nut fixed with the lifting plate is arranged on the rotating rod, a worm wheel is arranged on the rotating rod, the worm wheel is connected with a second shaft through a worm, the end part of the second shaft sequentially penetrates through the backrest shell and the backrest sleeve, and a second hand wheel is arranged at the end part of the second shaft; one side of the rotating rod is provided with a second guide rod fixed with the backrest shell, and the second guide rod is provided with a second guide sleeve fixed with the lifting plate.

In the automobile seat with the adjustable backrest support curved surface, the backup plate is provided with the concave curved surface, and the edge of the backup plate is provided with the turned edge which is bent backwards.

In the automobile seat with the adjustable backrest support curved surface, the cushion is made of sponge, a nylon plate is arranged on the rear side surface of the cushion, and the thickness of the nylon plate is 0.5-8 mm; and an elastic fabric is arranged in the through hole.

Compared with the prior art, the utility model discloses set up the backup plate in the lower part of back, the backup plate can be under the adjustment mechanism effect back-and-forth movement and reciprocate, and the position through the adjustment backup plate can change the support curved surface shape of back, makes human waist obtain just comparatively appropriate support dynamics to make the user be difficult to produce fatigue. Therefore, the utility model has the advantages of the back supports the curved surface adjustable, is difficult to make the people produce fatigue.

Drawings

Fig. 1 is a right side view of the present invention.

Fig. 2 is a front view of the adjustment mechanism.

Fig. 3 is a left side view of the adjustment mechanism.

Fig. 4 is a cross-sectional view of the cushion.

Fig. 5 is a plan view of the backup plate.

Fig. 6 is a front view of the present invention.

The labels in the figures are: 1-cushion, 2-headrest, 3-backrest shell, 4-soft cushion, 5-backrest sleeve, 6-backup plate, 7-nylon plate and 8-through hole;

701-tilting plate, 702-lifting plate, 703-rotating shaft, 704-first bracket, 705-second bracket, 706-first guide rod, 707-screw rod, 708-first guide sleeve, 709-driven bevel gear, 710-driving bevel gear, 711-first shaft, 712-first hand wheel, 713-switching bracket;

801-rotating rod, 802-bearing, 803-nut, 804-worm wheel, 805-worm, 806-second shaft, 807-second hand wheel, 808-second guide rod and 809-second guide sleeve.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. The utility model provides a back supports curved surface adjustable car seat, as shown in figure 1, includes cushion 1, back and headrest 2, the back includes hollow back casing 3, and the front side of back casing 3 is equipped with cushion 4, and back casing 3 and cushion 4 overlap jointly and locate in back cover 5, and back cover 5 is sewed by elastic fabric and forms, and the lower part of back casing 3 front side is equipped with through-hole 8, the vertical width of through-hole 8 is 22cm, and horizontal ascending length is 25-30cm, is equipped with adjustment mechanism in the through-hole 8, adjustment mechanism can be at the upper and lower back-and-forth movement of through-hole 8 within range.

The adjusting mechanism comprises a backup plate 6 arranged in the through hole 8, the vertical width of the backup plate 6 is 15cm, a telescopic device is arranged on the rear side of the backup plate 6, and the telescopic device is connected with the backrest shell 3 through a lifting device.

The telescopic device comprises a tilting plate 701 and a lifting plate 702 which are sequentially positioned at the rear side of the backup plate 6; a rotating shaft 703 is arranged between the backup plate 6 and the tilting plate 701, a first bracket 704 and a second bracket 705 are arranged on the rotating shaft 703, the first bracket 704 and the second bracket 705 are both U-shaped brackets, shaft holes through which the rotating shaft 703 passes are arranged on the first bracket 704 and the second bracket 705, the rotating shaft 703 is rotatably connected with the backup plate 6 through the first bracket 704, and the rotating shaft 703 is rotatably connected with the tilting plate 701 through the second bracket 705; a first guide rod 706 and a screw 707 are arranged between the tilting plate 701 and the lifting plate 702, one end of the first guide rod 706 is fixed with the tilting plate 701, the other end of the first guide rod passes through the lifting plate 702, a first guide sleeve 708 fixed with the lifting plate 702 is arranged on the first guide rod 706, one end of the screw 707 is in spherical hinge with the tilting plate 701, the other end of the screw 707 is in threaded connection with the lifting plate 702, a driven bevel gear 709 is arranged on the first screw 707, the driven bevel gear 709 is connected with a first shaft 711 through a driving bevel gear 710, the end of the first shaft 711 sequentially passes through the backrest shell 3 and the backrest sleeve 5, a first hand wheel 712 is arranged at the end of the first shaft 711, the first shaft 711 is fixed with the lifting plate 702 through a switching bracket 713, the switching bracket 713 is also a U-shaped bracket, and the first shaft 711 vertically passes through. The backrest shell 3 and the backrest cover 5 are provided with long holes at the positions where the first shaft 711 passes through.

The lifting device comprises a rotating rod 801 positioned at the rear side of a lifting plate 702, bearings 802 are arranged at two ends of the rotating rod 801, the rotating rod 801 is rotatably connected with the backrest shell 3 through the bearings 802, the bearings 802 are bearings with seats, a nut 803 fixed with the lifting plate 702 is arranged on the rotating rod 801, the rotating rod 801 is in threaded connection with the nut 803, a worm wheel 804 is arranged on the rotating rod 801, the worm wheel 804 is connected with a second shaft 806 through a worm 805, the end part of the second shaft 806 sequentially penetrates through the backrest shell 3 and the backrest sleeve 5, and a second wheel 807 is arranged at the end part of the second shaft 806; a second guide rod 808 fixed with the backrest shell 3 is arranged on one side of the rotating rod 801, and a second guide sleeve 809 fixed with the lifting plate 702 is arranged on the second guide rod 808.

The backup plate 6 is provided with a concave curved surface 61, and the edge of the backup plate 6 is provided with a curled edge 62 which is bent backwards. The concave curved surface 61 is attached to the curved surface of the waist of the human body, so that the human body is supported more comfortably; the curled edge is used for preventing the cushion 4 from being cut when the backup plate 6 moves up and down.

The material of cushion 4 is the sponge of thickness 3-5cm, is equipped with nylon board 7 on the trailing flank of cushion 4, and the thickness of nylon board 7 is 0.5-8 mm. The nylon plate 7 has good wear resistance, the cushion 4 can be further prevented from being cut when the backup plate 6 moves up and down, and meanwhile, the nylon plate 7 also prevents the cushion 4 from sinking into the backrest shell 3 from the through hole 8.

The working principle is as follows: the up-and-down movement of the backup plate 6 is adjusted. As shown in fig. 2 and 3, when the second hand wheel 807 is rotated, the second hand wheel 807 drives the worm 805 to rotate through the second shaft 806, the worm 805 drives the rotating rod 801 to rotate through the worm wheel 804, the rotating rod 801 drives the lifting plate 702 to move up and down through the nut 803, and the lifting plate 702 drives the backup plate 6 to move up and down through the first guide rod 706, the tilting plate 701, the second bracket 705, the rotating shaft 703 and the first bracket 704 in sequence.

Back plate 6 moves back and forth. When the first hand wheel 712 is rotated, the first hand wheel 712 drives the driving bevel gear 710 to rotate through the first shaft 711, the driving bevel gear 710 drives the screw 707 to rotate through the driven bevel gear 709, and the screw 707 moves forwards and backwards when rotating, so that the leaning plate 6 is driven to move forwards and backwards through the tilting plate 701, the second bracket 705, the rotating shaft 703 and the first bracket 704 in sequence.

When the back leans against the backrest, the back plate 6 receives pressure, the back plate 6 rotates around the rotating shaft 703 through the first support 704, the back plate 6 is in contact with the back comprehensively, the stress on the back is uniform, and the fatigue of a human body can be further relieved.

The curved support surface in this embodiment is the front side surface of the backrest cover 5, and the shape of the front side surface of the backrest cover 5 is changed by adjusting the position of the backup plate 6.

Therefore, the utility model has the advantages of the back supports the curved surface adjustable, is difficult to make the people produce fatigue.

Claims

1. The utility model provides a back supports curved surface adjustable car seat, includes cushion (1), back and headrest (2), its characterized in that: the backrest comprises a hollow backrest shell (3), a cushion (4) is arranged on the front side of the backrest shell (3), the backrest sleeve (5) is sleeved with the backrest shell (3) and the cushion (4) together, a through hole (8) is formed in the lower portion of the front side of the backrest shell (3), an adjusting mechanism is arranged in the through hole (8), and the adjusting mechanism can move up and down and back and forth within the range of the through hole (8).

2. The adjustable back support contour vehicle seat of claim 1, further comprising: the adjusting mechanism comprises a backup plate (6) arranged in the through hole (8), the rear side of the backup plate (6) is provided with a telescopic device, and the telescopic device is connected with the backrest shell (3) through a lifting device.

3. The adjustable back support contour vehicle seat of claim 2, further comprising: the telescopic device comprises an inclined rotating plate (701) and a lifting plate (702) which are sequentially positioned at the rear side of the backup plate (6); a rotating shaft (703) is arranged between the backup plate (6) and the tilting plate (701), a first bracket (704) and a second bracket (705) are arranged on the rotating shaft (703), the rotating shaft (703) is rotatably connected with the backup plate (6) through the first bracket (704), and the rotating shaft (703) is rotatably connected with the tilting plate (701) through the second bracket (705); a first guide rod (706) and a screw rod (707) are arranged between the tilting plate (701) and the lifting plate (702), one end of the first guide rod (706) is fixed with the tilting plate (701), the other end of the first guide rod penetrates through the lifting plate (702), a first guide sleeve (708) fixed with the lifting plate (702) is arranged on the first guide rod (706), one end of the screw rod (707) is in spherical hinge connection with the tilting plate (701), the other end of the screw rod is in threaded connection with the lifting plate (702), a driven bevel gear (709) is arranged on the first screw rod (707), the driven bevel gear (709) is connected with a first shaft (711) through a driving bevel gear (710), the end part of the first shaft (711) sequentially penetrates through the backrest shell (3) and the backrest sleeve (5), and a first hand wheel (712) is arranged at the end part.

4. The adjustable back support contour vehicle seat of claim 3, further comprising: the lifting device comprises a rotating rod (801) positioned at the rear side of a lifting plate (702), bearings (802) are arranged at two ends of the rotating rod (801), the rotating rod (801) is rotatably connected with a backrest shell (3) through the bearings (802), a nut (803) fixed with the lifting plate (702) is arranged on the rotating rod (801), a worm wheel (804) is arranged on the rotating rod (801), the worm wheel (804) is connected with a second shaft (806) through a worm (805), the end part of the second shaft (806) sequentially penetrates through the backrest shell (3) and a backrest sleeve (5), and a second hand wheel (807) is arranged at the end part of the second shaft (806); one side of the rotating rod (801) is provided with a second guide rod (808) fixed with the backrest shell (3), and the second guide rod (808) is provided with a second guide sleeve (809) fixed with the lifting plate (702).

5. The adjustable back support contour vehicle seat of claim 2, further comprising: the backup plate (6) is provided with an inwards concave curved surface (61), and the edge of the backup plate (6) is provided with a curled edge (62) which is bent backwards.

6. The adjustable back support contour vehicle seat of claim 1, further comprising: the material of cushion (4) is the sponge, is equipped with nylon board (7) on the trailing flank of cushion (4), and the thickness of nylon board (7) is 0.5-8 mm.