CN201782350U - Chassis - Google Patents

Abstract

The utility model discloses a chassis, mainly including a bottom plate, a taper pipe, a movable seat, slide rails, a front connecting bar, a back connecting bar, a fixing screw, a chassis fixing mechanism and an elasticity adjusting device; the taper pipe is welded on the movable seat; the bottom plate is movably riveted on the movable seat by a rivet; the slide rails are welded on the connecting bars; the connecting bars are fixed on a chair seat through threads; and the bottom plate is fixed on the slide rails by a bottom plate fixing device. The chassis disclosed by the utility model is easy for assembly and disassembly.

Description

A kind of chassis

Technical field

The utility model relates to the matching component of swivel chair, specifically is the chassis that connects a kind of easy loading and unloading of seat support and the air pressure rod and the chair back.

Background technology

At present, the chassis that this kind style swivel chair is supporting, when finally being installed to the swivel chair seat support, need fix with four screws, for the client who makes final use installs laborsaving, must in advance the chassis be assemblied on the seat support when dispatching from the factory transportation, cause the packaging volume of final whole chair bigger, the cost of transportation height; And the chassis of adopting this mounting means to install, change relatively effort, change number of times more than, cause thread failure easily, cause whole seat support to be scrapped.

Summary of the invention

The purpose of this utility model provides a kind of easy loading and unloading and changes chassis easily.

The disclosed chassis of the technical scheme that its technical problem that solves the utility model adopts mainly comprises base plate, Taper Pipe, sliding seat, slide rail, preceding connection strap, back connection strap, hold-down screw, chassis fixed mechanism and elastic force adjusting device; Taper Pipe is fixedlyed connected with sliding seat, and base plate and sliding seat flexibly connect, and slide rail is welded on the connection strap, and connection strap is fixed on the seat support by being threaded, and base plate is fixed on the slide rail by floor anchor mechanism.

The technical scheme that its technical problem that solves the utility model adopts can also be further perfect.Symmetrical two slide rails are fixing with the two ends welding of the preceding connection strap of parallel placement and back connection strap respectively and becomes " mouth " font, and preceding connection strap is fixedlyed connected with seat support with back four installing holes of connection strap; Inboard at the two ends of two slide rails fixedly installs plastic mattress behind two preceding plastic mattresses and two; In the centre of preceding connection strap, fixedly install an anticreep spare; The rear end of base plate depressed behind the anticreep spare peg graft with preceding plastic mattress, back plastic mattress successively; Hold-down screw successively with the hole of base plate front end, anticreep spare and preceding connection strap in the middle of the hole be fixed on the seat support after pegging graft and compress base plate.

Adopt the easy loading and unloading in chassis and the replacing of the open structure of the utility model convenient.

Description of drawings

Fig. 1 is a stereochemical structure exploded view of the present utility model;

Fig. 2 is a partial structurtes schematic diagram of the present utility model;

Fig. 3 is an overall structure schematic diagram of the present utility model;

Connection strap behind the 1-, 2-slide rail, plastic mattress behind the 3-, 4-self-tapping screw (), plastic mattress before the 5-, 6-anticreep spare, 7-self-tapping screw (two), 8-base plate, the 9-hold-down screw, 10-sliding seat, 11-spring protecting sleeve, 12-spring, 13-bowl-type pad, 14-minipad, 15-screw rod, 16-adjusting nut, the 17-Taper Pipe, 18-lining, 19-rivet, 20-adjusting rod, the 21-handle, 22-adjustment sheet, connection strap before the 23-stator, 24-.

The specific embodiment

Below in conjunction with embodiment the utility model is further described.As shown in Figure 1, the chassis of this easily assembling, in the middle ofbase plate 8, be connected on the slidingseat 10 withrivet 19, mountingbush 18 betweenrivet 19 and the slidingseat 10, middle position welding Taper Pipe 17 andstator 23 in slidingseat 10, Taper Pipe 17 is enclosed within the head of air pressure rod, and fixed support plays wholechassis.Adjusting rod 20 penetrates slidingseat 10, and be positioned at adjustingrod 20 slidingseat 10 inboards Taper Pipe 17 above, welding secured adjustedsheet 22, and make the center, top that is centered close to Taper Pipe 17 ofadjustment sheet 22, withstand air pressure rod, and the rotational angle of control andregulation bar 22 and prevent that adjusting rod from pulling out, the other end of adjustingrod 22 has the bending of a L type, and the outermost end of L type is installedhandle 21;Pull handle 21, adjustingrod 20 is that supporting-point rotates with two circular holes of slidingseat 10, and the head that driveadjustment sheet 23 compresses air pressure rod moves up and down, and air pressure rod is risen or decline, thereby drives the lifting of chair.Symmetrical twoslide rails 2 are weldingly fixed on the two ends of the precedingconnection strap 24 and the back connection strap 1 of parallel placement respectively, be welded into " mouth " font, with four installing holes of precedingconnection strap 24 and back connection strap 1, with being threaded with certain fixed-site on seat support.Inboard at the two ends of twoslide rails 2 is provided with plastic mattress 3 behind two precedingplastic mattresses 5 and two, with self-tapping screw () 4 four plastic mattresses is fixed.In the centre of precedingconnection strap 24, an anticreep spare 6 is set, fixing with self-tapping screw (two) 7.After the rear end ofbase plate 8 depressed anticreep spare 6,plastic mattress 5 before inserting, and pass precedingplastic mattress 5 and insert back plastic mattresses 3,base plate 8 continues to move backward up towhole base plate 8 above anticreep spare 6, anticreep spare 6 is upspring automatically and is caught on the front end ofbase plate 8, andbase plate 8 can not be moved forward.With a hold-down screw 9, insert the hole ofbase plate 8 front ends, pass the hole in the middle of anticreep spare 6 and the precedingconnection strap 24, be fixed on the seat support with being threaded and compressbase plate 8, preventing thatbase plate 8 from becoming flexible to cause rocks.In the front end punching out ofbase plate 8 square hole in the middle of a protruding bubble and the protruding big gun, in the front end punching out of slidingseat 10 long lumbar hole, described elastic force governor motion, mainly byscrew rod 15,spring protecting sleeve 11,spring 12 bowl-type pads 13,minipad 14 and adjustingnut 16 are formed,screw rod 15 penetrates from the long lumbar hole of slidingseat 10 from the square hole ofbase plate 8 and passes, passspring protecting sleeve 11,spring 12 bowl-type pads 13,minipad 14, tighten with the adjustingnut 16 that is threaded mold insert, one end ofspring 12, roof pressure is on the upper surface of slidingseat 10, other end roof pressure is at bowl-type pad 13, the other end roof pressure of bowl-type pad 13minipad 14, and the other end roof pressure ofminipad 14 adjustingnut 16, under the effect of external force, makebase plate 8 when rivet 19 layback,spring 12 pressurizeds are done the time spent when losing external force,spring 12 resiliences, makebase plate 8 around rivet 19 rotations, return to initial position.Can the pressure size of 12 pairs of slidingseat 10 of spring be changed by tightening or unscrewing adjustingnut 16.

At last, should be pointed out that above example only is the more representational example of the utility model, obviously, the utility model is not limited to the foregoing description, and many distortion can also be arranged.Every foundation technical spirit of the present utility model is to any simple modification that above embodiment made, and equivalent variations and decoration all should be thought to belong to protection domain of the present utility model.

Claims (3)

1. a chassis comprises base plate (8), Taper Pipe (17), sliding seat (10), slide rail (2), preceding connection strap (24), back connection strap (1), hold-down screw (9), chassis fixed mechanism and elastic force adjusting device; It is characterized in that Taper Pipe (17) fixedlys connected with sliding seat (10), base plate (8) flexibly connects with sliding seat (10), slide rail (2) is welded on the connection strap, and connection strap is fixed on the seat support by being threaded, and base plate (8) is fixed on the slide rail (2) by floor anchor mechanism.

2. a kind of chassis according to claim 1, it is characterized in that: symmetrical two slide rails (2) are fixing with the two ends welding of the preceding connection strap (24) of parallel placement and back connection strap (1) respectively and becomes " mouth " font, and preceding connection strap (24) is fixedlyed connected with seat support with back four installing holes of connection strap (1); Inboard at the two ends of two slide rails (2) fixedly installs plastic mattress (3) behind two preceding plastic mattresses (5) and two; Centre in preceding connection strap (24) fixedly installs an anticreep spare (6); The rear end of base plate (8) depressed behind the anticreep spare (6) peg graft with preceding plastic mattress (5), back plastic mattress (3) successively; Hold-down screw (9) successively with the hole of base plate (8) front end, anticreep spare (6) and preceding connection strap (24) in the middle of the hole be fixed on the seat support after pegging graft and compress base plate (8).

3. a kind of chassis according to claim 1 is characterized in that: anticreep spare (6) is fixedlyed connected with preceding connection strap (24) screw thread.

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