CN201641140U

CN201641140U - Seat chassis with improved structure

Info

Publication number: CN201641140U
Application number: CN2010201065848U
Authority: CN
Inventors: 陈育成
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-29
Filing date: 2010-01-29
Publication date: 2010-11-24
Anticipated expiration: 2020-01-29
Also published as: WO2011091617A1

Abstract

The utility model discloses a seat chassis with an improved structure, comprising a chassis base; and the chassis base is arranged at the top part of a pneumatic rod and is pivoted with a left connecting rod and a right connecting rod of a seat back frame. The seat chassis is characterized in that the chassis base is internally provided with a rotating shaft, a spring and a spring rotating base; the spring is sheathed on the rotating shaft in a ring manner and is positioned in the spring rotating base; the rotating shaft is connected on the axis of the spring rotating base in a penetrating manner and is fixedly connected with the spring rotating base; the two ends of the rotating shaft are fixedly connected with the left connecting rod and the right connecting rod of the seat back frame; the chassis base is internally provided with two racks which can be meshed with each other, wherein one end of one rack is positioned in a sliding groove on the spring rotating base, and the other end thereof presses against the spring; the other rack can slide in the chassis base so as to be meshed or separated with the rack, and is connected with a handle by a pulling line; one exposed head of the spring presses the cavity wall of the spring rotating base, and the other exposed head thereof presses a sliding block which moves up and down; the sliding block is connected with a screw by thread; and the top part of the screw is provided with a rotating disc which is connected with one end of a rocking handle by bevels. The seat chassis has the advantages of simple structure, convenient operation, small volume, light weight and conformity with ergonomics.

Description

A kind of Chair underframe that improves structure

Technical field

The utility model relates to a kind of Chair underframe that improves structure, specifically a kind of simple in structure, easy to operate, volume is little, the Chair underframe of in light weight, the improvement structure that meets ergonomics.

Background technology

In the conventional seat chassis, because the space on chassis is very limited, have multi-functional chassis structure and often have very big volume, weight, and the control lever of various adjustment functions all evagination extend the outside, not only the carrying on labor intensive, and the appearance design of monolithic seat also is affected easily and reduces aesthetic feeling, and not easy to operate.For this reason, people have proposed a kind of new structure, are about to chassis and chair back rack and articulate, and then a chair back rack and a sliding bar are articulated, and form chair back rack chassis swing relatively, and sliding bar is controlled by the spring of adjusting wheel control.Rail is connected to slidably sliding seat on chair seat frame, shakes the screw rod degree of depth relatively by screw rod again and controls chair cushion front and back displacement and angle of inclination.The chassis of this structure still exists complex structure, inconvenient operation, bulky shortcoming.Conventional seat all is to be locked on certain angle on the layback function, and after the user left, seat can not directly return to former state, and so not only space hold is many, and is also not attractive in appearance, more do not meet ergonomics.

Summary of the invention

The purpose of this utility model provide a kind of simple in structure, easy to operate, volume is little, the Chair underframe of in light weight, the improvement structure that meets ergonomics.

The purpose of this utility model is achieved through the following technical solutions.

A kind of Chair underframe that improves structure, comprise subbase, subbase is installed in the top of atmospheric pressure pole, the left and right sides connecting rod of subbase and chair back rack articulates, it is characterized in that: be provided with rotating shaft, spring and spring rotating basis in the described subbase, ring spring is enclosed within the rotating shaft, and spring is positioned at the spring rotating basis, the rotating shaft cross-under is fixedlyed connected on the axle center of spring rotating basis and with the spring rotating basis, fixedlys connected with the left and right sides connecting rod of chair back rack in the two ends of rotating shaft; Being provided with in the described subbase can intermeshing two tooth bar, wherein an end of a tooth bar is positioned at the chute on the spring rotating basis, other end roof pressure one spring, another tooth bar can slide in subbase so that mesh or disengagement with aforementioned tooth bar, and this tooth bar is connected by a backguy and a handle; One of described spring is lifted one's head on the chamber wall that is pressed in the spring rotating basis, and another is lifted one's head and is pressed on the slide block of an oscilaltion, and slide block is connected with a screw flight, and this screw rod top is provided with a rotating disk, and rotating disk is connected by the awl tooth with an end of a rocking handle.

The described handle that is connected with tooth bar by backguy is installed on the subbase in the mode that swings up and down.

Described rotating shaft is provided with two springs, and two spring symmetrical rings are enclosed within the rotating shaft.

Be provided with slide sliding position control device between housing and the slide left and right sidesing supporting frame in the described subbase upper saddle, slide sliding position control device comprises control handle, spring, cylinder and pedestal, control handle and spring are installed on the pedestal, and spring is positioned at the cylindrical cavity of cylinder.

Atmospheric pressure pole lift adjustment switch under the described subbase links to each other with handle by backguy, and handle is installed on the subbase in the mode that swings up and down.

The utility model compared with prior art has the following advantages.

The utility model is by pulling moving handle, handle is by the coupled tooth bar of backguy pulling, the tooth bar of two engagements is thrown off mutually, the chair back moves forward and backward by the coupled tooth bar of spring rotating basis pulling, when it moves to the position that needs, unclamp handle, the tooth bar that tooth bar is connected with the spring rotating basis under the pressure effect of spring is meshed, and the chair back is rotated in a certain angle.There is advantage simple in structure, easy to operate, that volume is little in the mechanism at this control chair back angle of inclination.Spring in the spring rotating basis can make the people leave seat, and the chair back at once can return, but save space not only also meets ergonomics.The elastic force of spring can be regulated by the slide block oscilaltion that rocking handle drives, and makes it meet the demand of different people.The handle of handle that is connected with tooth bar and adjusting atmospheric pressure pole is installed on the chassis in the mode that swings up and down, and when people adjust chair back angle adjusting mechanism and seat cushion lifting, can pull handle up and down, and is easy to operate, meets the daily operating habit of people.

Description of drawings

Fig. 1 is the outside drawing of the utility model Chair underframe;

Fig. 2 is the structure chart of the utility model Chair underframe;

Fig. 3 is the structure chart of the utility model Chair underframe handle with tooth bar;

Fig. 4 is the partial structurtes figure () of the utility model Chair underframe;

Fig. 5 is the partial structurtes figure (two) of the utility model Chair underframe;

Fig. 6 is the decomposition chart of the utility model seat slide stopping means;

Fig. 7 is the structure chart of the utility model seat slide stopping means.

The specific embodiment

Below in conjunction with accompanying drawing the Chair underframe that the utility model improves structure is described in further detail.

To shown in Figure 7, the Chair underframe of improvement structure described in the utility model comprises subbase as Fig. 1, and subbase 1 is installed in the top of atmospheric pressure pole, and the left and right sides connecting rod 2 of subbase and chair back rack articulates.Subbase is provided with rotating shaft 3, spring 4 and spring rotating basis 5, and the both sides of subbase are provided with axis hole, and rotating shaft laterally is installed in the axis hole, and can rotate in axis hole, fixedlys connected with the left and right sides connecting rod of chair back rack in the two ends of rotating shaft.Spring is two, and symmetrical ring is enclosed within the rotating shaft and is positioned at the spring rotating basis.The spring rotating basis is fixedlyed connected with rotating shaft, and can rotate with rotating shaft.One of two springs are lifted one's head and are pressed on the cavity wall of spring rotating basis, but another is lifted one's head on the slide block 6 that is pressed in an oscilaltion, the screw rod 7 that slide block and vertically is installed on the subbase is threaded, a rotating disk 8 is installed at the top of screw rod, the rotating disk bottom surface is provided with the awl tooth, and rotating disk is by the engagement of the tooth on an awl tooth and the rocking handle 9.Have a chute in the bottom of spring rotating basis, the end of a tooth bar 10 is positioned at chute, other end roof pressure one spring 11 of this tooth bar, and spring is installed on the subbase.Tooth bar be provided with another tooth bar 12 in a lateral direction, a side of this tooth bar is provided with spring 13 and fixed block 14, spring between tooth bar and fixed block, tooth bar by backguy 15 with shake hands 16 to be connected, two tooth bars can be meshing with each other.

When people need regulate the angle of inclination of the chair back, upwards rotate handle, handle moves by the tooth bar that backguy drags horizontally set, and two tooth bars are thrown off mutually.The chair back rotates backward, the chair back drives rotating shaft and rotates, the spring rotating basis rotates with rotating shaft, the end of the chute one side roof pressure tooth bar on the spring rotating basis vertically moves tooth bar, when the chair back turns to required angle, unclamp handle, the tooth bar of the spring roof pressure horizontally set on the fixed block is mediated two tooth bars mutually, and the tooth bar of vertical setting is fixed on a certain position.When the people left seat, the torsion on two springs in the rotating shaft made the spring rotating basis rotate towards previous rightabout, and the spring rotating basis drives rotating shaft and rotates, and rotating shaft drives the chair back and rotates, and makes the chair back return to original state, for seat has been saved the space.People's rotation crank, by the tooth of rocking handle end and the engagement of the awl tooth on the rotating disk, drive dial rotation, rotating disk drives connected screw rod and rotates, screw rod drives the fixed block oscilaltion, fixed block drives spring one and lifts one's head oscilaltion, thereby adjusts the torsion of spring action in rotating shaft, makes the chair back the power on people's the back of acting on be fit to the demand of different people.

Handle mainly is made up of with pedestal 19 handle position 17, rotating shaft 18, and pedestal is provided with shaft hole and installing hole, and rotating shaft is installed in the shaft hole, and the handle position is done to rotate up and down by rotating shaft, and pedestal is laterally installed on the seat by installing hole.When people need rotate handle, upwards pull the handle position and get final product, meet people's operating habit at ordinary times, for using, people brought convenience.

Slide can move front and back on slide left and right sidesing supporting frame 21 by housing in the slide, the slide left and right sidesing supporting frame is provided with the control handle 25 that is used to limit the slide shift position, the below of control handle is provided with a pedestal 22, pedestal is provided with spring 23 and cylinder 24, spring is positioned at cylindrical cavity, and cylinder acts on the control handle by the spring roof pressure.When people need moving sliding base, with pulling moving control handle, can move forward and backward slide then, when moving to desired location, unclamp control handle, control handle is under the spring effect of upwarding pressure, and the restriction slide continues to move forward and backward.

Atmospheric pressure pole lift adjustment switch under the subbase links to each other with handle 16 by backguy 15, and handle is installed on the subbase in the mode that swings up and down.When people need regulate the adjustable height of atmospheric pressure pole, upwards pull the handle position and get final product, meet people's operating habit at ordinary times, for using, people brought convenience.

Claims

1. Chair underframe that improves structure, comprise subbase, subbase is installed in the top of atmospheric pressure pole, the left and right sides connecting rod of subbase and chair back rack articulates, it is characterized in that: be provided with rotating shaft, spring and spring rotating basis in the described subbase, ring spring is enclosed within the rotating shaft, and spring is positioned at the spring rotating basis, the rotating shaft cross-under is fixedlyed connected on the axle center of spring rotating basis and with the spring rotating basis, fixedlys connected with the left and right sides connecting rod of chair back rack in the two ends of rotating shaft; Being provided with in the described subbase can intermeshing two tooth bar, wherein an end of a tooth bar is positioned at the chute on the spring rotating basis, other end roof pressure one spring, another tooth bar can slide in subbase so that mesh or disengagement with aforementioned tooth bar, and this tooth bar is connected by a backguy and a handle; One of described spring is lifted one's head on the chamber wall that is pressed in the spring rotating basis, and another is lifted one's head and is pressed on the slide block of an oscilaltion, and slide block is connected with a screw flight, and this screw rod top is provided with a rotating disk, and rotating disk is connected by the awl tooth with an end of a rocking handle.

2. the Chair underframe of improvement structure according to claim 1 is characterized in that: the described handle that is connected with tooth bar by backguy is installed on the subbase in the mode that swings up and down.

3. the Chair underframe of improvement structure according to claim 1 is characterized in that: described rotating shaft is provided with two springs, and two spring symmetrical rings are enclosed within the rotating shaft.

4. the Chair underframe of improvement structure according to claim 1, it is characterized in that: be provided with slide sliding position control device between housing and the slide left and right sidesing supporting frame in the described subbase upper saddle, slide sliding position control device comprises control handle, spring, cylinder and pedestal, control handle and spring are installed on the pedestal, and spring is positioned at the cylindrical cavity of cylinder.

5. the Chair underframe of improvement structure according to claim 1 is characterized in that: the atmospheric pressure pole lift adjustment switch under the described subbase links to each other with handle by backguy, and handle is installed on the subbase in the mode that swings up and down.