CN219229418U

CN219229418U - Chassis structure and seat with same

Info

Publication number: CN219229418U
Application number: CN202223378073.3U
Authority: CN
Inventors: 甘惠淋; 王小荣
Original assignee: Gaoyao District Jinli Town Chuangyiming Hardware Furniture Factory; Foshan Shengyi Furniture Co ltd
Current assignee: Gaoyao District Jinli Town Chuangyiming Hardware Furniture Factory; Guangdong Shengyi Furniture Group Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-06-23
Anticipated expiration: 2032-12-14

Abstract

The utility model relates to the technical field of seats, in particular to a chassis structure and a seat with the chassis structure, wherein the chassis structure comprises a fixed seat and a seat mounting plate, and the fixed seat is rotationally connected with a rocker; the bottom of the seat mounting plate is provided with a first lifting bracket, and the front end of the seesaw is rotationally connected with the first lifting bracket; the chair comprises a chair back, a chair seat, chair legs and a chassis structure, wherein the chair back is fixedly connected with the rear end of the seesaw, the seesaw is rotationally connected to the fixed seat, the front end of the seesaw is rotationally connected with the first lifting bracket at the bottom of the chair seat, when the chair back is backward leaned, the front end of the seesaw can upwards lift the chair seat, the phenomenon that the front edge of the chair seat is upwards leaned to prop up and press thighs and the chair is backward leaned is avoided, and the comfort and the safety of the chair are improved; meanwhile, the chassis is used as an independent mechanism, the chassis bolts are only required to be fixed at the bottom of the chair seat in the installation process, the installation operation is simple, and the installation cost is low.

Description

Chassis structure and seat with same

Technical Field

The utility model relates to the technical field of seats, in particular to a chassis structure and a seat with the same.

Background

Seat pans, also known as seat trays, are an important component that fits under the seat base of a seat. The lifting of the seat, the adjustment of the tilting angle of the backrest and locking are completed by virtue of the chassis, when the backrest tilts backwards, most of the seats on the market have the front edge of the seat capable of tilting upwards to push thighs, so that the comfort is poor, and certain safety problem exists.

As disclosed in patent documents CN207837192U and CN207285696U, when the chair back leans back, the front edge of the chair seat can tilt up to push the thigh, so that the center of gravity of the human body and the chair moves backward, the comfort is poor, the chair is easy to turn backward, and a certain safety problem exists.

As another example, patent document publication No. CN206603492U discloses a seat chassis comprising: a base configured to be coupled to a chair base assembly; the rocker is used for connecting the chair back support and is connected with the rear part of the base in a pivoting manner; and the reset device is connected between the base and the seesaw, and when the seesaw rotates around the pivot, the reset device is deformed to generate reset elastic force. The seat chassis is characterized in that a reset device is directly arranged between a base and a rocker, and when the rocker rotates, the reset device is directly promoted to deform to generate reset elastic force; the seat and chassis mechanism has the effect that the edge of the front part of the seat is not upwarp, and the gravity center of the seat and a human body can not seriously move backwards when the seat and the chassis mechanism are tilted, but the technology has the following defects: the seat structure is relatively complex, each rotary connecting mechanism is not easy to install, and a certain large number of rotary connecting auxiliary parts are needed to be connected with the seat back; the installation is time-consuming and laborious, and installation technical requirement is high, and installation effectiveness is lower, and installation component cost and human cost are all higher.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to: provided are a chassis structure and a seat having the same.

The utility model adopts the technical scheme that:

the chassis structure comprises a fixed seat and a seat mounting plate arranged above the fixed seat, wherein the fixed seat is connected with a rocker through a pivot, and the pivot is positioned in the middle of the rocker; the bottom of the seat mounting plate is provided with a first lifting bracket, and the front end of the seesaw is rotationally connected with the first lifting bracket; when the rear end of the wane rotates downwards, the front end of the wane can horizontally upwards lift the seat mounting plate through the first lifting bracket. The chassis structure is rotationally connected with a wane on the fixed seat, and the front end of the wane is rotationally connected with a first lifting bracket fixedly connected to the bottom of the seat mounting plate; when the rear end of the seesaw rotates downwards, the front end of the seesaw can lift the seat mounting plate upwards, and the seat mounting plate is lifted upwards integrally to prevent the front edge of the seat mounting plate from being lifted upwards.

As a further improvement of the technical scheme, the chair further comprises a second lifting bracket, wherein the first lifting bracket is arranged at the front end of the bottom of the chair seat mounting plate; the second lifting bracket is arranged at the rear end of the bottom of the seat mounting plate; the middle part of the lifting swing block is rotationally connected to the fixed seat through a second bolt shaft pin; the front end of the lifting swing block is rotationally connected with the seesaw through a first bolt shaft pin; the lifting swing block is provided with a third arc-shaped guide hole, the first bolt shaft pin is arranged on the third arc-shaped guide hole, and the first bolt shaft pin can slide on the third arc-shaped guide hole; the rear end of the lifting swing block is rotationally connected with the second lifting bracket through a second lifting shaft pin; the left side and the right side of the second lifting bracket are respectively provided with a second arc-shaped guide hole, two end parts of the second lifting shaft pin are inserted into the second arc-shaped guide holes, and the second lifting shaft pin can slide on the second arc-shaped guide holes; when the rear end of the wane rotates downwards, the wane drives the lifting swing block to rotate clockwise, and the rear end of the lifting swing block can upwards lift the seat mounting plate through the second lifting bracket. Through the front end installation first lifting support in seat support mounting panel bottom, the rear end installation second lifting support in seat support mounting panel bottom makes the seat rise more steadily in the time of the intensity of lifting structure in two directions simultaneously upwards lifting seat support mounting panel from front and back.

As a further improvement of the technical scheme, the second arc-shaped guide hole and the third arc-shaped guide hole are provided with flexible gaskets. Wear of the components is reduced by providing a flexible gasket, and durability of the seat structure is improved.

As a further improvement of the technical scheme, the number of the lifting pendulum blocks is two, the lifting pendulum blocks are arranged inside the fixing seat, and a spacer is further arranged between the lifting pendulum blocks and the inner wall of the fixing seat. Through setting up the spacer and preventing lifting pendulum piece and fixing base direct contact, reduce frictional force, make rising and decline action more smooth and easy.

As a further improvement of the above technical solution, the front end of the rocker is rotatably connected with the first lifting bracket through a first lifting shaft pin; the left side and the right side of the fixing seat are respectively provided with a first arc-shaped guide hole, two end parts of the first lifting shaft pin are inserted into the first arc-shaped guide holes, and the first lifting shaft pin can slide on the first arc-shaped guide holes. The first arc-shaped guide hole is arranged to prevent the first lifting shaft pin from ascending excessively, so that the phenomenon of seat back-turning is further avoided.

As a further improvement of the above technical solution, a flexible washer is installed on the first arc-shaped guiding hole. Wear of the components is reduced by providing a flexible gasket, and durability of the seat structure is improved.

As a further improvement of the technical scheme, the device further comprises a shell, and the fixing seat is arranged in the shell. The chassis core structure is protected by arranging the shell, so that the appearance is better.

The seat comprises the chassis structure, a chair back, a chair seat and chair legs, wherein the chassis structure is fixedly connected below the chair seat, the lower end of the chair back is fixedly connected with the rear end of the seesaw, and the chair legs are arranged at the bottom of the chassis structure; when the chair back rotates backwards, the chair chassis structure can lift the chair seat upwards. According to the seat, the chair back is fixedly connected with the rear end of the seesaw, the seesaw is rotatably connected to the fixing seat, the front end of the seesaw is rotatably connected with the first lifting bracket at the bottom of the seat, and when the chair back leans backwards, the seat can be integrally lifted upwards by the seesaw, so that the front edge of the seat is prevented from being lifted upwards and the seat is prevented from being turned backwards, and the comfort of the seat is improved; meanwhile, the chassis is used as an independent mechanism, the chassis bolts are only required to be fixed at the bottom of the seat in the installation process, the installation operation is simple, other additional auxiliary mechanisms and accessories are not required, the installation cost and the installation technical difficulty are greatly reduced, the installation efficiency is greatly improved, and most of seat types can be adapted.

The beneficial effects of the utility model are as follows:

1. the chassis structure is characterized in that a rocker is rotatably connected to a fixed seat, and the front end of the rocker is rotatably connected with a first lifting bracket fixedly connected to the bottom of a seat mounting plate; when the rear end of the seesaw rotates downwards, the front end of the seesaw can lift the seat mounting plate upwards, and the seat mounting plate is lifted upwards integrally to prevent the front edge of the seat mounting plate from being lifted upwards.

2. According to the seat, the chair back is fixedly connected with the rear end of the rocker, the rocker is rotationally connected to the fixed seat, the front end of the rocker is rotationally connected with the first lifting bracket at the bottom of the seat, and when the chair back leans backwards, the front end of the rocker can integrally lift the seat upwards, so that the phenomenon that the front edge of the seat leans upwards to push thighs and the seat backwards is avoided, and the comfort and safety of the seat are improved; meanwhile, the chassis is used as an independent mechanism, the chassis bolts are only required to be fixed at the bottom of the seat in the installation process, the installation operation is simple, other additional auxiliary mechanisms and accessories are not required, the installation cost and the installation technical difficulty are greatly reduced, the installation efficiency is greatly improved, and most of seat types can be adapted.

Drawings

The utility model is further illustrated by the following description and examples of the embodiments in conjunction with the accompanying drawings.

FIG. 1 is a schematic view of the chassis structure of the present utility model;

FIG. 2 is a second overall schematic view of the chassis structure of the present utility model;

FIG. 3 is an exploded view of the chassis of the present utility model;

FIG. 4 is a perspective effect diagram of the initial state of the chassis structure of the present utility model;

FIG. 5 is a perspective effect view showing the tilting midway state of the chassis structure of the utility model;

FIG. 6 is a perspective view showing the effect of the chassis structure of the present utility model in a tilted end position;

FIG. 7 is a partially exploded view of a seat employing the chassis structure of the present utility model;

in the figure: 1-a fixed seat, 11-a seat mounting plate, 12-a rocker, 120-a pivot, 111-a first lifting bracket, 2-a lifting swing block, 20-a second bolt shaft pin, 112-a second lifting bracket, 21-a second lifting shaft pin, 1120-a second arc-shaped guide hole, 22-first bolt shaft pin, 23-third arc-shaped guide hole, 3-flexible washer, 24-spacer, 1110-first lifting shaft pin, 5-outer shell, 6-chair back, 7-chair seat, 8-gear adjusting mechanism, 9-torsion spring, 10-first arc-shaped guide hole.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 7, a chassis structure includes a housing 5, a fixing base 1 is installed in the housing 5, a seat mounting plate 11 is installed above the fixing base 1, the fixing base 1 is rotatably connected with a rocker 12 through a pivot 120, and the pivot 120 is installed in the middle of the rocker 12 and divides the rocker 12 into a front end and a rear end. The rear end of the rocker 12 is adapted to be connected to the back 6 of the seat.

The bottom of the front end of the bottom of the seat mounting plate 11 is provided with a first lifting bracket 111, and the front end of the rocker 12 is rotatably connected with the first lifting bracket 111 through a first lifting shaft pin 1110; the left and right sides of fixing base 1 all is provided with first arc guiding hole 10, first arc guiding hole 10 top-down sets up, the both ends portion of first lifting axle pin 1110 peg graft on first arc guiding hole 10 to can follow first arc guiding hole 10 and slide from top to bottom, still install flexible packing ring 3 on the first arc guiding hole 10.

The bottom of the rear end of the seat mounting plate 11 is provided with a second lifting bracket 112, the left side and the right side of the second lifting bracket 112 are respectively provided with a second arc-shaped guide hole 1120, the fixed seat 1 and the second lifting bracket 112 are connected through a lifting pendulum block 2, the lifting pendulum block 2 is rotationally connected with the fixed seat 1 through a second bolt shaft pin 20, and the positions of the second bolt shaft pin 20 and the fixed seat 1 are relatively fixed; the second bolt shaft pin 20 is located at the middle of the lifting pendulum 2, and the second bolt shaft pin 20 is located at the rear side of the pivot 120. The rear end of the lifting swing block 2 is rotatably connected with the second lifting bracket 112 through a second lifting shaft pin 21, two ends of the second lifting shaft pin 21 are inserted into the second arc-shaped guide hole 1120, and the second lifting shaft pin 21 can slide in the second arc-shaped guide hole 1120, such as a cam assembly. The front end of the lifting pendulum block 2 is rotatably connected with the seesaw 12 through a first bolt shaft pin 22, and the first bolt shaft pin 22 comprises a bolt and a spacer ring; the front end of the lifting swing block 2 is provided with a third arc-shaped guide hole 23, and the first bolt shaft pin 22 is connected to the third arc-shaped guide hole 23 in a sliding manner, and is shaped like a cam assembly; the rocker 12 is provided with a shaft hole 100 matched with the first bolt shaft pin 22, the shaft hole 100 corresponds to the third arc-shaped guide hole 23, and the first bolt shaft pin 22 passes through the shaft hole 100 and the third arc-shaped guide hole 23 to enable the lifting pendulum block 2 to be rotatably connected to the rocker 12; the shaft holes are fixed relative to the first bolt shaft pin 22. When the rocker 12 rotates backward, the lifting pendulum block 2 can rotate along the time direction, the rear end of the lifting pendulum block 2 lifts the seat mounting plate 11 upwards, and at this time, the seat mounting plate 11 rises and has a certain displacement in the horizontal direction, so that the second lifting shaft pin 21 slides in the obliquely downward direction; the rocker 12 is counter to the direction of rotation of the lifting pendulum 2.

The number of the lifting pendulum blocks 2 is two, the lifting pendulum blocks 2 are respectively arranged on the left inner side and the right inner side of the fixing base 1, and a spacer 24 is clamped between the lifting pendulum blocks 2 and the inner side wall of the fixing base 1.

When the rear end of the rocker 12 rotates downwards (rotates anticlockwise), the front end of the rocker 12 integrally lifts the seat mounting plate 11 upwards through the first lifting bracket 111; while rotating, the rocker 12 drives the lifting pendulum block 2 to rotate clockwise, and the rear end of the lifting pendulum block 2 can integrally lift the seat mounting plate 11 upwards through the second lifting bracket 112.

The first arc-shaped guide hole 10, the second arc-shaped guide hole 1120 and the third arc-shaped guide hole 23 are respectively provided with a flexible gasket 3.

The seat mechanism and the chassis can not be freely adjusted according to the self-body weight of a user group and the requirement of tilting comfort, so that the use comfort is slightly poor and the applicable crowd range is reduced;

still install gear adjustment mechanism 8 on the fixing base 1, adjustment mechanism 8 includes torsional spring and fast adjustment cam, be provided with five contact top surfaces on the fast adjustment cam, the cooperation of torsional spring and fast adjustment cam can realize the fast adjustment of gear, through setting up gear adjustment mechanism 8, this structure can be according to user's demand, adjusts wane 12's restoring force.

The seat comprises the chassis structure, a chair back 6, a chair seat 7 and chair legs (not shown), wherein the chassis is connected below the chair seat 7 through bolts, the rocker 12 and the chair back are combined into a whole through welding, and the chair legs are arranged below the chassis; the seat 7 is screwed above the seat mounting plate 11 by bolts. The seat bottom structure is able to lift the seat base 7 upwards when the seat back 6 is rotated backwards. The chair further comprises a reset structure, wherein the reset structure comprises a torsion spring 9, and when a human body pushes the chair back 6 to enable the rocker 12 to rotate around the pivot 120, the torsion spring 9 is deformed to generate reset elastic force, and the reset structure is embedded in the fixed seat 1.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims

1. A chassis structure, characterized in that:

comprises a fixed seat (1) and a seat mounting plate (11) arranged above the fixed seat (1);

the fixing seat (1) is rotationally connected with the rocker (12) through a pivot (120), and the pivot (120) is positioned in the middle of the rocker (12);

the bottom of the seat mounting plate (11) is provided with a first lifting bracket (111), and the front end of the rocker (12) is rotationally connected with the first lifting bracket (111);

when the rear end of the rocker (12) rotates downwards, the front end of the rocker (12) can lift the seat mounting plate (11) upwards through the first lifting bracket (111).

2. A chassis structure as claimed in claim 1, wherein:

the chair also comprises a second lifting bracket (112), wherein the first lifting bracket (111) is arranged at the front end of the bottom of the chair seat mounting plate (11); the second lifting bracket (112) is arranged at the rear end of the bottom of the seat mounting plate (11);

the lifting pendulum block (2) is further included, and the middle part of the lifting pendulum block (2) is rotationally connected to the fixed seat (1) through a second bolt shaft pin (20);

the front end of the lifting swing block (2) is rotationally connected with the rocker (12) through a first bolt shaft pin (22); a third arc-shaped guide hole (23) is formed in the lifting swing block (2), the first bolt shaft pin (22) is arranged on the third arc-shaped guide hole (23), and the first bolt shaft pin (22) can slide on the third arc-shaped guide hole (23);

the rear end of the lifting swing block (2) is rotationally connected with the second lifting bracket (112) through a second lifting shaft pin (21); the left side and the right side of the second lifting bracket (112) are respectively provided with a second arc-shaped guide hole (1120), two end parts of the second lifting shaft pin (21) are inserted into the second arc-shaped guide holes (1120), and the second lifting shaft pin (21) can slide on the second arc-shaped guide holes (1120);

when the rear end of the rocker (12) rotates downwards, the rocker (12) drives the lifting pendulum block (2) to rotate clockwise, and the rear end of the lifting pendulum block (2) can upwards lift the seat mounting plate (11) through the second lifting bracket (112).

3. A chassis structure as claimed in claim 2, wherein:

and the second arc-shaped guide hole (1120) and the third arc-shaped guide hole (23) are respectively provided with a flexible gasket (3).

4. A chassis structure as claimed in claim 2, wherein:

the number of the lifting pendulum blocks (2) is two, the lifting pendulum blocks (2) are arranged inside the fixed seat (1), and a spacer (24) is further arranged between the lifting pendulum blocks (2) and the inner wall of the fixed seat (1).

5. A chassis structure as claimed in claim 1, wherein:

the front end of the rocker (12) is rotatably connected with the first lifting bracket (111) through a first lifting shaft pin (1110);

the left side and the right side of the fixing seat (1) are respectively provided with a first arc-shaped guide hole (10), two end parts of the first lifting shaft pin (1110) are inserted into the first arc-shaped guide holes (10), and the first lifting shaft pin (1110) can slide on the first arc-shaped guide holes (10).

6. A chassis structure according to claim 5, wherein:

and the first arc-shaped guide hole (10) is provided with a flexible gasket (3).

7. A chassis structure as claimed in claim 1, wherein:

the device also comprises a shell (5), and the fixing seat (1) is arranged in the shell (5).

8. A seat comprising a chassis structure as claimed in any one of claims 1 to 7,

the novel chair also comprises a chair back (6), a chair seat (7) and chair legs, wherein the chassis structure is arranged below the chair seat (7), the lower end of the chair back (6) is fixedly connected with the rear end of the rocker (12), and the chair legs are arranged at the bottom of the chassis structure;

when the chair back (6) rotates backwards, the chassis structure can lift the chair seat (7) upwards.