CN111823961B

CN111823961B - Multi-gear automobile seat adjusting device

Info

Publication number: CN111823961B
Application number: CN202010723958.9A
Authority: CN
Inventors: 李晓宇; 甄勇; 孟翔; 彭劲; 王骏; 蔡灿; 王珊珊
Original assignee: Hefei Yunhe Andaotuo Car Seat Co ltd
Current assignee: Hefei Yanfeng Yunhe Automobile Seat Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2025-01-17
Anticipated expiration: 2040-07-24
Also published as: CN111823961A

Abstract

The invention discloses a multi-gear automobile seat adjusting device which comprises a ratchet wheel assembly, a hand-held part and a gear shifting limiting assembly, wherein the ratchet wheel assembly comprises gear teeth and a driven shaft arranged at the axis of the gear teeth, one side surface of the gear teeth is sequentially provided with circumferentially arranged ball holes and ball grooves used for connecting circumferentially adjacent ball holes, the gear teeth are bi-directional rectangular teeth, the ratchet wheel assembly is rigidly connected with the driven shaft, the hand-held part and the gear teeth take the driven shaft as a common rotation center and drive the gear teeth to rotate so as to realize gear adjustment, the hand-held part can return to the original position after gear adjustment, and the gear shifting limiting assembly can limit the hand-held part to increase angular displacement after gear shifting adjustment and can lock the gear of the ratchet wheel assembly. The invention has simple structure, the handle can return automatically, and the gear has a memory function.

Description

Multi-gear automobile seat adjusting device

Technical Field

The invention relates to the technical field of mechanical gear adjustment, in particular to a multi-gear automobile seat adjusting device.

Background

Among the traditional mechanical gear adjusting structures, the adjusting handle of one gear is frequently fresh: the adjusting handle is usually exposed in an easy-to-operate and easy-to-touch space environment, so that the space occupation rate of the handle is high, and meanwhile, in the easy-to-touch environment, the position of the handle is often and unintentionally adjusted, so that the equipment is not in an ideal gear when in work. The prior art has the defects that the adjusting handle can not keep the same position and is very easy to touch, so that the equipment can not be kept at an ideal gear.

Disclosure of Invention

The invention aims to provide a multi-gear automobile seat adjusting device. The adjustable gear can be adjusted in multiple gears while maintaining ideal gears in an environment which is easy to operate and is touched. To solve the problems set forth in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

a multi-gear car seat adjustment device comprising:

The ratchet assembly comprises a driven shaft with gear teeth and a shaft center arranged on the gear teeth;

the hand-held part and the gear teeth take the driven shaft as a common rotation center and drive the gear teeth to rotate so as to realize gear adjustment, and the hand-held part can return to the original position after the gear adjustment;

And the gear shifting limiting assembly can limit the handheld part to increase the angular displacement after gear shifting adjustment, and can lock the ratchet assembly in gear.

Preferably, the ratchet assembly is rigidly connected to the driven shaft.

Preferably, a side surface of the gear tooth is provided with N ball holes which are circumferentially arranged and N ball grooves which are used for connecting circumferentially adjacent ball holes in sequence, wherein N is the number of teeth of the gear, and the gear tooth is a bidirectional rectangular tooth.

Preferably, the hand-held part is provided with a gear groove for placing the gear-shifting limiting assembly, the gear groove can limit the maximum angular displacement of the hand-held part when in gear adjustment, and the hand-held part is provided with a connecting shaft.

Preferably, one end of the connecting shaft is connected with at least two pawls which are in bidirectional engagement with the gear teeth, and the pawls are engaged with the toothed baffle plate to rotate to any side in an engaged manner so as to realize bidirectional gear adjustment.

Preferably, the other end of the connecting shaft is connected with a return spring for returning after the hand-held part rotates, a tooth blocking plate is arranged between the pawl and the gear teeth, and the tooth blocking plate is of a fixed structure and cannot rotate along with the gear teeth or the pawl.

Preferably, the return spring is arranged to be sleeved on the driven shaft and the connecting shaft in an annular mode, and the tail end of the return spring abuts against the connecting shaft for return.

Preferably, the inside of shifting restriction subassembly is provided with locking ball pressure spring and place in the locking ball of shifting restriction subassembly one end, locking ball pressure spring with locking ball cooperation the ball hole can realize the gear locking.

Preferably, the shift limiting assembly is provided in a fixed configuration and is not rotatable with the ratchet mechanism and the handpiece.

Compared with the prior art, the invention has the beneficial effects that the structure is novel, the bidirectional adjustment of multiple gears can be realized, the adjusting handle can automatically return, the double-safety ratchet and ratchet locking and spring and ball locking characteristics are realized, and the adjusting mode opens up a new path for the traditional mechanical adjusting mode.

Drawings

FIG. 1 is a schematic front view of a multi-position handle adjustment device of the present invention;

FIG. 2 is a rear structural schematic view of the multi-position handle adjustment device of the present invention;

FIG. 3 is a schematic view of the structure of the invention with the hand-held portion removed;

FIG. 4 is a schematic view of the gear adjustment of the present invention;

FIG. 5 is a schematic view of the gear adjustment of the present invention with the handpiece removed;

Fig. 6 is a schematic view of the structure of the tooth blocking plate of the present invention.

In the figure, 1, a ratchet assembly, 10, a driven shaft, 11, a ball hole, 12, a ball groove, 2, a hand-held part, 20, a gear groove, 21, a return spring, 22, a connecting shaft, 3, a pawl, 30, a pawl return spring, 4, a gear shifting limiting assembly, 40, a locking ball pressure spring, 41, a locking ball, 5 and a gear blocking plate.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-6, in an embodiment of the present invention, a multi-gear car seat adjusting device includes:

The ratchet assembly 1, the ratchet assembly 1 comprises gear teeth 13 and a driven shaft 10 arranged at the axle center of the gear teeth 13, the ratchet assembly 1 is an external meshing ratchet mechanism, the gear teeth 13 are bidirectional rectangular teeth, one side surface of the gear teeth 13 is simultaneously provided with N ball holes 11 and N ball grooves 12 which are circumferentially arranged at equal intervals in sequence, wherein N is the number of teeth of the wheel;

The hand-held part 2 and the gear teeth 13 take the axle center of the driven shaft 10 as the common rotation center, and the hand-held part 2 can return to the original position after gear adjustment. The hand-held part 2 is also provided with a connecting shaft 22, one end of the connecting shaft 22 is connected with two pawls 3 of the two-way meshing gear teeth 13, and drives the gear teeth 13 to rotate so as to realize gear adjustment. The other end of the connecting shaft 22 is connected with a return spring 21 for returning after the hand-held part 2 rotates, the torsion is annularly sleeved on the driven shaft 10 and the connecting shaft 22, and the tail end of the return spring 21 abuts against the connecting shaft 22 for returning. And a gear baffle plate 5 is arranged between the pawl 3 and the gear teeth 13, and the pawl 2 is meshed with the gear baffle plate 5 to rotate to any side, so that bidirectional gear adjustment can be realized. Wherein, the tooth baffle plate 5 is a fixed structure and can not rotate along with the gear teeth 13 or the pawl 3;

The inside of the gear shift limiting assembly 4 is provided with a locking ball pressure spring 40 and a locking ball 41 placed at one end of the gear shift limiting assembly 4, and the locking ball pressure spring 40 and the locking ball 41 are matched with the ball hole 11 to realize gear locking. While enabling gear locking of the ratchet assembly 1. The hand-held part 2 is provided with a gear groove 20 for placing the gear-shifting limiting assembly 4, and the gear groove 20 can limit the maximum angular displacement of the hand-held part 2 after the gear shifting is successful. The shift limiting assembly 2 is a fixed structure and cannot rotate with the ratchet assembly 1 or the handpiece 2.

The operation process is that the pawl is driven to rotate by the axis of the driven shaft through stirring the adjusting handheld part, and the pawl is in hard contact with the tooth blocking plate in the deflection process; at the moment, one side of the pawl drives the ratchet wheel to do rotary motion to carry out gear shifting adjustment, the rotation of the ratchet wheel needs to overcome the friction force of a locking small ball, the locking small ball overcomes the pressure of a locking ball pressure spring, the ratchet wheel realizes an unlocking function, the ratchet wheel rotates to the next gear, and the hand-held part realizes the return function of the hand-held part under the action of a return spring.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Multi-gear car seat adjusting device, its characterized in that includes:

The ratchet assembly (1) comprises a driven shaft (10) which is provided with gear teeth (13) and is arranged at the axle center of the gear teeth;

The hand-held part (2) takes the driven shaft as a common rotation center with the gear teeth and drives the gear teeth to rotate so as to realize gear adjustment, and the hand-held part can return to the original position after the gear adjustment;

a shift limiting assembly (4) capable of limiting the hand-held portion to increase an angular displacement amount after shift adjustment while being capable of gear locking the ratchet assembly;

The gear shifting limiting device comprises a gear shifting limiting component, a gear shifting shaft, a gear shifting spring, a gear shifting limiting component, a driven shaft, a gear shifting ball and a locking ball, wherein the gear shifting shaft is provided with a gear shifting limiting component, the gear shifting shaft is provided with a gear shifting groove (20) for placing the gear shifting limiting component, the gear shifting groove can limit the maximum angular displacement of the hand-held portion when in gear shifting, the hand-held portion is provided with a connecting shaft (22), one end of the connecting shaft is connected with at least two pawls (3) which are in bidirectional engagement with the gear shifting shaft, the pawls are engaged and rotated to any side to achieve bidirectional gear shifting, the other end of the connecting shaft is connected with a return spring (21) for returning after rotation of the hand-held portion, a gear blocking plate (5) is arranged between the pawls and the gear shifting shaft, the gear blocking plate is arranged to be of a fixed structure and can not rotate along with the gear shifting shaft, the tail end of the return spring is sleeved on the driven shaft and the connecting shaft, the tail end of the return spring is abutted to the connecting shaft, a locking ball (40) and a locking ball (41) arranged at one end of the gear shifting limiting component can achieve the bidirectional gear shifting limiting.

2. The multi-position car seat adjustment apparatus of claim 1 wherein the ratchet assembly is rigidly connected to the driven shaft.

3. The multi-gear automobile seat adjusting device according to claim 1, wherein one side surface of the gear teeth is provided with N ball holes (11) which are circumferentially arranged and N ball grooves (12) which are used for connecting circumferentially adjacent ball holes in sequence, wherein N is the number of gear teeth, and the gear teeth are bidirectional rectangular teeth.