CN217429599U

CN217429599U - Hand-operated adjusting handrail structure

Info

Publication number: CN217429599U
Application number: CN202220394730.4U
Authority: CN
Inventors: 许昌沛; 褚嘉瑜; 谢继镁
Original assignee: Zhejiang Wellsun Automobile Parts Co ltd
Current assignee: Zhejiang Wellsun Automobile Parts Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-09-16
Anticipated expiration: 2032-02-25

Abstract

The utility model discloses a manual regulation handrail structure in the relevant technical field of seat, including seat position frame and back main part support, seat position frame with adjust the pivot through the back between the back main part support and rotate the connection, the both sides limit of back main part support is provided with handrail installation bedplate, install the support handrail through the cross assembly axle on the handrail installation bedplate. The utility model discloses in through setting up cross assembly axle and handrail adjusting nut, can easily realize carrying out the regulation of angle to supporting the handrail, it is protruding to be provided with locking on the contact surface of handrail adjusting nut and support handrail, can effectual increase frictional force, reinforcing locking effect, through setting up back adjustment seat and back adjustment spanner, can easily realize the regulation to back main part support angle, power adjusting device in the back adjustment seat is ratchet, good controllability can, can satisfy diversified market demand, it is various to make the seat function, the travelling comfort is good.

Description

Hand-operated adjusting handrail structure

Technical Field

The utility model relates to a relevant technical field of seat specifically is a manual regulation handrail structure.

Background

The traditional seat can only adjust the height of the seat and the supporting angle of the headrest, cannot adjust the armrests and the backrest, and cannot meet diversified market demands. Accordingly, one skilled in the art provides a manually adjustable armrest structure that solves the problems set forth in the background above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a manual regulation handrail structure to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a manual regulation handrail structure, includes seat frame and back main part support, seat frame with adjust the pivot through the back between the back main part support and rotate the connection, the both sides limit of back main part support is provided with handrail installation bedplate, install the support handrail through cross assembly axle on the handrail installation bedplate, it is protruding to be provided with locking on the lateral wall of support handrail, handrail adjusting nut is installed to the axle head of cross assembly axle, the end position that the pivot was adjusted to the back is installed in back adjustment seat, the side of back adjustment seat is provided with back adjustment spanner.

As a further aspect of the present invention: the utility model discloses a chair, including seat frame, seat support chassis, damping spring, shock-absorbing spring, damping performance for reinforcing seat, improve the travelling comfort of seat, the below of seat frame is provided with the seat and supports the chassis, the both ends of seat support chassis through connecting branch with the seat frame is connected, the intermediate position that the seat supported the chassis is installed damping spring for the damping performance of reinforcing seat improves the travelling comfort of seat.

As a further aspect of the present invention: the middle position of the seat frame of the seat is provided with a seat supporting net which is a repeated bending structure, and the middle position of the backrest main body support is provided with a transverse backrest reinforcing supporting rod for increasing the overall strength and mechanical performance of the backrest main body support.

As a further aspect of the present invention: the outer end integral type of cross assembly axle is provided with the location shaft shoulder, the outer end of location shaft shoulder is provided with the handrail regulating spindle, install support bearing on the handrail regulating spindle, support bearing installs in the handrail installation bedplate, the location shaft shoulder be used for right support bearing's terminal surface is fixed a position, the end cap is installed to the end position of handrail regulating spindle.

As a further aspect of the present invention: the utility model discloses a backrest adjusting spanner, including backrest adjusting spanner, ratchet, connecting rod, drive pawl, ratchet adjusting spanner, the end position of backrest adjusting spanner is connected with the connecting rod, be provided with the drive pawl on the connecting rod, the drive pawl cooperatees with the ratchet, the central point of ratchet puts and is provided with centre bore and keyway, the ratchet with pass through the key-type connection between the pivot is adjusted to the backrest, the ratchet can drive the pivot is adjusted to the backrest rotates, realizes the regulation of backrest angle.

As a further aspect of the present invention: the side of ratchet is provided with the non return pawl, the top of non return pawl is provided with the non return preforming, the non return pawl is used for the restriction the ratchet reversal guarantees the angle modulation effect.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, through setting up cross assembly axle and handrail adjusting nut, can easily realize carrying out the regulation of angle to supporting the handrail, be provided with the locking arch on handrail adjusting nut and the contact surface that supports the handrail, can effectual increase frictional force, reinforcing locking effect.

2. The utility model discloses in, through setting up back adjustment seat and back adjustment spanner, can easily realize the regulation to back main part support angle, the power adjusting device in the back adjustment seat is ratchet mechanism, manual regulation, and controllability can be good, can satisfy diversified market demand, makes the seat function various, and the travelling comfort is good.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of an armrest adjustment part according to the present invention;

fig. 3 is a schematic view of the adjusting portion of the backrest of the present invention.

In the figure: 1. a seat support chassis; 2. a seat frame of the seat; 3. a damping spring; 4. connecting a support rod; 5. a seat support net; 6. a backrest adjusting rotating shaft; 7. a backrest body bracket; 8. a support arm rest; 9. a backrest reinforcing support bar; 10. a backrest adjusting seat; 11. a backrest adjustment wrench; 12. the seat board is installed on the handrail; 13. an end cap; 14. an armrest adjustment shaft; 15. a support bearing; 16. positioning the shaft shoulder; 17. a cross assembly shaft; 18. a locking protrusion; 19. an armrest adjustment nut; 20. a connecting rod; 21. a drive pawl; 22. a ratchet wheel; 23. a non-return pawl; 24. a check tabletting; 25. a central bore; 26. a keyway.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, in the embodiment of the present invention, a manual armrest adjustment structure includes a seat frame 2 and a backrest main body support 7, the seat frame 2 is rotatably connected to the backrest main body support 7 via a backrest adjustment shaft 6, two side edges of the backrest main body support 7 are provided with armrest mounting seat plates 12, the armrest mounting seat plates 12 are provided with support armrests 8 via cross-shaped assembly shafts 17, outer side walls of the support armrests 8 are provided with locking protrusions 18, shaft ends of the cross-shaped assembly shafts 17 are provided with armrest adjustment nuts 19, end positions of the backrest adjustment shaft 6 are installed in a backrest adjustment seat 10, side edges of the backrest adjustment seat 10 are provided with backrest adjustment wrenches 11, angle adjustment of the backrest main body support 7 can be easily achieved, a power adjustment device in the backrest adjustment seat 10 is a ratchet 22 mechanism, manual adjustment is achieved, and controllability is good, can satisfy diversified market demand, make the seat function various, the travelling comfort is good.

A seat supporting underframe 1 is arranged below the seat frame 2, two ends of the seat supporting underframe 1 are connected with the seat frame 2 through connecting support rods 4, and a damping spring 3 is arranged in the middle of the seat supporting underframe 1 and used for enhancing the damping performance of the seat and improving the comfort of the seat; a seat supporting net 5 is arranged at the middle position of the seat frame 2, the seat supporting net 5 is of a repeated bending structure, and a transverse backrest reinforcing supporting rod 9 is arranged at the middle position of the backrest main body bracket 7 and is used for increasing the overall strength and mechanical property of the backrest main body bracket 7; the outer end of the cross-shaped assembly shaft 17 is integrally provided with a positioning shaft shoulder 16, the outer end of the positioning shaft shoulder 16 is provided with a handrail adjusting shaft 14, a supporting bearing 15 is mounted on the handrail adjusting shaft 14, the supporting bearing 15 is mounted in the handrail mounting seat plate 12, the positioning shaft shoulder 16 is used for positioning the end face of the supporting bearing 15, and the end cap 13 is mounted at the end position of the handrail adjusting shaft 14; the end position of the backrest adjusting wrench 11 is connected with a connecting rod 20, the connecting rod 20 is provided with a driving pawl 21, the driving pawl 21 is matched with a ratchet wheel 22, the central position of the ratchet wheel 22 is provided with a central hole 25 and a key groove 26, the ratchet wheel 22 is connected with the backrest adjusting rotating shaft 6 through a key, and the ratchet wheel 22 can drive the backrest adjusting rotating shaft 6 to rotate so as to realize the adjustment of the backrest angle; the side of ratchet 22 is provided with non return pawl 23, and the top of non return pawl 23 is provided with non return preforming 24, and non return pawl 23 is used for limiting ratchet 22 reversal, guarantees the angle modulation effect.

The utility model discloses a theory of operation is: when the angle of the supporting armrest 8 needs to be adjusted, the armrest adjusting nut 19 is loosened, the armrest adjusting nut 19 and the supporting armrest 8 are in a separated state, the supporting armrest 8 is rotated to a proper angle as required, then the armrest adjusting nut 19 is screwed down for position locking, a locking protrusion 18 is arranged at a position where the outer side of the supporting armrest 8 is in contact with the armrest adjusting nut 19, the friction force between the armrest adjusting nut 19 and the supporting armrest 8 can be effectively increased, the self-locking effect is improved, the two supporting armrests 8 on the seat can be independently adjusted, when the angle of the backrest main body support 7 needs to be adjusted, the backrest adjusting wrench 11 is pulled, the backrest adjusting wrench 11 drives the driving pawl 21 to rotate and shift through the connecting rod 20, the driving pawl 21 drives the ratchet wheel 22 to rotate, the angle of the backrest main body support 7 is adjusted, the non-return pawl 23 and the non-return pressing sheet 24 are arranged on the side of the ratchet wheel 22, can restrict the ratchet 22 reversal, realize the auto-lock, guarantee angle modulation effect, manual regulation, controllability can be good, can satisfy diversified market demand, makes the seat function various, and the travelling comfort is good.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a manual regulation handrail structure, includes seat frame (2) and back main part support (7), its characterized in that: seat frame (2) with adjust pivot (6) through the back between back main part support (7) and rotate the connection, the both sides limit of back main part support (7) is provided with handrail installation bedplate (12), install support handrail (8) through cross assembly axle (17) on handrail installation bedplate (12), be provided with locking arch (18) on the lateral wall of support handrail (8), handrail adjusting nut (19) are installed to the axle head of cross assembly axle (17), the end position that pivot (6) were adjusted to the back is installed in back adjustment seat (10), the side of back adjustment seat (10) is provided with back adjustment spanner (11).

2. A manually adjustable armrest structure, as set forth in claim 1, wherein: the utility model discloses a chair support, including seat frame (2), seat support chassis (1), connecting strut (4) and seat frame (2), the below of seat frame (2) is provided with seat support chassis (1), the both ends of seat support chassis (1) through connecting strut (4) with seat frame (2) are connected, damping spring (3) are installed to the intermediate position of seat support chassis (1).

3. A manually adjustable armrest structure, as set forth in claim 1, wherein: the middle position of the seat frame (2) is provided with a seat supporting net (5), the seat supporting net (5) is of a repeated bending structure, and the middle position of the backrest main body support (7) is provided with a transverse backrest reinforcing supporting rod (9).

4. A manually adjustable armrest structure, as set forth in claim 1, wherein: the outer end integral type of cross assembly axle (17) is provided with location shaft shoulder (16), the outer end of location shaft shoulder (16) is provided with handrail regulating spindle (14), install supporting bearing (15) on handrail regulating spindle (14), supporting bearing (15) are installed in handrail installation bedplate (12), end cap (13) are installed to the end position of handrail regulating spindle (14).

5. A manually adjustable armrest structure, as set forth in claim 1, wherein: the end position of back adjustment spanner (11) is connected with connecting rod (20), be provided with drive pawl (21) on connecting rod (20), drive pawl (21) cooperate with ratchet (22), the central point of ratchet (22) puts and is provided with centre bore (25) and keyway (26), ratchet (22) with through the key-type connection between back regulation pivot (6).

6. A manually adjustable armrest structure, as set forth in claim 5, wherein: the side of the ratchet wheel (22) is provided with a non-return pawl (23), and a non-return pressing sheet (24) is arranged above the non-return pawl (23).