CN2680115Y

CN2680115Y - Backrest connecting seat structure

Info

Publication number: CN2680115Y
Application number: CN 200420014706
Authority: CN
Inventors: 蔡金文
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-09
Filing date: 2004-01-09
Publication date: 2005-02-23
Anticipated expiration: 2014-01-09

Abstract

The utility model relates to a backrest connecting seat structure. The lower end of a backrest framework is welded with a fixing inserting base, and the backrest connecting seat under the seat is pivoted with a pin-jointed taper base with a taper containing groove, which is closely attached to the fixing inserting base when the fixing inserting base is inserted into the containing groove of the pin-jointed taper base; a screw is screwed with a screw hole on the bottom plate of the fixing inserting base through a through hole on a plate near the lower margin of the containing groove so as to prevent the fixing inserting base from sliding and shaking.

Description

Chair back Connection Block structure

Technical field

The utility model relates to a kind of Chair structure, is meant a kind of chair back Connection Block structure especially.

Background technology

See also shown in Figure 1, when the plate 11 that weld habit formula chair back skeleton 1 below is plugged on the chair back Connection Block 2, this chair back Connection Block 2 fixedly mode of plate 11 is several gag lever posts 22 that laterally are pivoted in the pin joint seat 21 at rear own, and be installed with the soft colloid 23 of one deck in pin joint seat 21 back, running through spiral shell at pin joint seat 21 sides establishes a screw rod 24 in addition, and these screw rod 24 ends touch and are against soft colloid 23 outer side edges, gag lever post 22 in plate 11 injects pin joint seats 21 and thereafter between end face, behind the soft colloid 23 extruding plates 11 of rotating screw bolt 24 compressings, plate 11 can be limited in the chair back Connection Block 2.

During use, borrow and to pull brake bar 25 and unclasp pin joint seat 21 inclinations that pivoted, advance to drive 1 inclination of chair back skeleton simultaneously the adjustment chair back, reach application purpose to the required back of the body of the user angle of lying.Because of screw rod 24 in the soft colloid 23 of compressing when propping up plate 11, can not be completely fixed plate 11, cause plate 11 that the phenomenon of trying to shirk responsibility is arranged at any time downwards, so when user's back of the body lies in the chair back, can experience the chair back unsteady situation is arranged, and can't lie by comfortable seat, plate 11 only is being subjected to screw rod 24 single points under compressing power again, also causes plate 11 unbalance stress easily and rocks, so that reduce the stability that assembling is used.

The utility model content

Main purpose of the present utility model provides a kind of chair back Connection Block structure that prevents that the chair back from trying to shirk responsibility and rocking.

For achieving the above object, solution of the present utility model is: chair back Connection Block structure, and it is to set firmly a fixed socket in chair back skeleton lower end, it is the taper pedestal of bunching from top to bottom; In addition this is positioned at the chair back Connection Block of seat support below, the pivot joint awl seat that its rear end articulates enclose form one can ccontaining fixed socket tank.

This fixed socket reaches by articulating the awl seat tank that forms that encloses, and all only is bunching taper from top to bottom in single opposite face.

Prevent the open connection rib of opening in the tank opening part solid welding that articulates the awl seat.

Each opposite flank of fixed socket is for being the similar shape taper; And each opposite flank that articulates the awl seat is to be the similar shape taper of bunching from top to bottom.

Offer a screw on the base plate of fixed socket, and fix the plate of a tool open-work at the nearly lower edge that articulates the awl seat.

After adopting such scheme, borrow the fixed socket of chair back skeleton to be all and be bunching taper from top to bottom with the formed tank of pivot joint awl seat that is articulated in chair back Connection Block rear, after making fixed socket be plugged in the tank that articulates the awl seat, promptly be tight attaching positioning states, do not take place and do not have the situation of trying to shirk responsibility or rocking downwards.

On the fixed socket base plate, offer a screw, fix the plate of a tool open-work again in the nearly lower edge of tank that articulates the awl seat, in order to do allow screw penetrate plate open-work and with the screwing togather of fixed socket base plate, with the fixed socket locking in tank, prevent from further that fixed socket from trying to shirk responsibility to rock.

Description of drawings

Fig. 1 is a habit formula chair back Connection Block three-dimensional exploded view;

Fig. 2 is a chair back Connection Block three-dimensional exploded view of the present utility model;

Fig. 2 A is the partial sectional view of pivot joint awl seat of the present utility model;

Fig. 3 is Assembly Action figure of the present utility model;

Fig. 3 A is the schematic perspective view of chair back skeleton of the present utility model;

Fig. 3 B is a partial sectional view of the present utility model;

Fig. 4 is an enforcement illustration of the present utility model.

1 chair back skeleton, 11 plates

2 chair back Connection Blocks, 21 pin joint seats

22 gag lever posts, 23 soft colloids

24 screw rods, 25 brake bars

3 chair back skeletons, 4 fixed sockets

41 arc grooves, 42 base plates

43 screws, 5 seat supports

6 chair back Connection Blocks 61 articulate the awl seat

62 tanks, 63 plates

64 open-works, 7 screws

The specific embodiment

For making your auditor can understand the utility model, remainder cooperates the graphic function and benefit of introducing content of the present utility model in detail and reaching now, as back:

Please consult shown in Fig. 2 to 4 simultaneously, the utility model is relevant a kind of chair back Connection Block structure, it mainly is that a fixed socket 4 is established in weldering in chair back skeleton 3 lower ends, this fixed socket 4 is the taper pedestals of bunching from top to bottom, its each opposite flank is the similar shape taper, and emargination is established arc groove 41 on the two relative side that can allow chair back skeleton 3 bridge, and base plate 42 offers a screw 43 again; And on the chair back Connection Block 6 that is positioned at below the seat support 5, the pivot joint awl seat 61 that its rear end articulates encloses and forms a tank 62 that can supply fixed socket 4 to plug, this tank 62 is to be open slot, these tank 62 opposite flanks are also for being bunching similar shape taper from top to bottom, in order to do contrast fixed socket 4 type bodies, advance to allow fixed socket 4 be plugged on tank 62 Nei Shikeda to fit tightly state, fix a plate 63 in tank 62 nearly lower edges in addition, and offer an open-work 64 on this plate 63.

During assembling, in advance the arc groove 41 of fixed socket 4 with ora terminalis on its two relative side is attached at chair back skeleton 3 bottom lower edges and gives solid welding, afterwards again fixed socket 4 is inserted this and enclose the tank 62 that forms by articulating 61 of awl seats, in order to do make fixed socket 4 mutually and tank 62 be and fit tightly shape, relend screw 7 again and penetrate the open-work 64 that is positioned at tank 62 nearly lower edge plates 63 from lower to upper, and the screw 43 of continuous and fixed socket 4 base plates 42 screws togather, so that fixed socket 4 is locked in tank 62, advance to finish Assembly Action.

Be bunching taper from top to bottom because of fixed socket 4 and tank 62 are all,,, connection rib arranged in its opening part solid welding for the opening that prevents tank 62 opens because of stressed so after fixed socket 4 plugs together, promptly be tight attaching positioning states in tank 62; Fixed socket 4 does not have the situation of trying to shirk responsibility or rocking downwards and takes place, and the screw 43 of fixed socket 4 base plates 42 is after screwing togather with a screw 7 that penetrates the open-work 64 of plate 63 below the tank 62, evenly all sidedly fixed socket 4 is applied under the sealed pressure at screw 7, more can strengthen the stationarity that conforms to of 62 of fixed socket 4 and tanks, and when guaranteeing that fixed socket 4 is carried on chair back skeleton 3 is stressed, can not break away from tank 62.

In addition, be the simple and easy degree in more effective raising making, and keep fixed socket 4 again simultaneously and articulate the tight character that plugs together between the tank 62 type bodies of awl seat 61, fixed socket 4 of the present utility model can cooperate down in mutual contrast with tank 62 type bodies, be bunching conicoid design from top to bottom and change equidirectional only single opposite flank into, can reach tight attaching positioning states equally, not try to shirk responsibility downwards or rock and do not have.

Claims

1, a kind of chair back Connection Block structure is characterized in that: be to set firmly a fixed socket in chair back skeleton lower end, it is the taper pedestal of bunching from top to bottom; In addition this is positioned at the chair back Connection Block of seat support below, the pivot joint awl seat that its rear end articulates enclose form one can ccontaining fixed socket tank.

2, chair back Connection Block structure as claimed in claim 1 is characterized in that: this fixed socket reaches by articulating the awl seat tank that forms that encloses, and all only is bunching taper from top to bottom in single opposite face.

3, chair back Connection Block structure as claimed in claim 1 is characterized in that: prevent the open connection rib of opening in the tank opening part solid welding that articulates the awl seat.

4, chair back Connection Block structure as claimed in claim 1, it is characterized in that: each opposite flank of fixed socket is for being the similar shape taper; And each opposite flank that articulates the awl seat is to be the similar shape taper of bunching from top to bottom.

5, chair back Connection Block structure as claimed in claim 1 is characterized in that: offer a screw on the base plate of fixed socket, and fix the plate of a tool open-work at the nearly lower edge that articulates the awl seat.