CN209733156U - Elasticity adjusting structure of seat chassis - Google Patents

Abstract

The utility model discloses an elasticity adjusting structure of a seat chassis, which comprises a chassis seat, wherein a plurality of elastic sheets arranged along the front and back direction of the chassis are arranged on the chassis seat, an adjusting mechanism is arranged below the elastic sheets, the adjusting mechanism comprises a sliding block capable of moving along the front and back direction of the chassis and a control handle for controlling the movement of the sliding block, the upper end of the sliding block is provided with a jacking strip which is abutted against the lower end of the elastic sheet, when the elasticity is required to be adjusted, the control handle only needs to rotate the control handle to drive the sliding block to move, the jacking strip of the sliding block moves along the lower end of the elastic sheet and jacks the elastic sheet, thereby the deformation range of the elastic sheet can be adjusted to adjust the elasticity of the elastic sheet, the elasticity adjusting structure replaces the traditional compression spring by the elastic sheet, the installation is simpler, only the elastic sheet needs to be placed on the chassis seat for installation, and the elasticity change of the elastic sheet is more balanced, and the elasticity adjusting effect is better.

Description

Elasticity adjusting structure of seat chassis

Technical Field

The utility model relates to a seat field especially relates to a structure is adjusted to elasticity on seat chassis.

Background

The chair is a piece of furniture which is indispensable when people work or have a rest, and plays a role in bearing the weight of people. At present, an elastic force adjusting mechanism arranged on a chassis of a seat usually adopts a compression spring as a supply source of elastic force, however, the installation structure of the compression spring is complex, the installation time is long, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an elastic force adjusting structure of a seat chassis with simple installation.

In order to achieve the above object, an embodiment of the present invention adopts the following technical solutions: the utility model provides a structure is adjusted to elasticity on seat chassis, includes the chassis seat, install a plurality of shell fragments of arranging along the chassis fore-and-aft direction on the chassis seat, the below of shell fragment is provided with adjustment mechanism, adjustment mechanism is including the sliding block that can follow the chassis fore-and-aft direction and the brake valve lever that control sliding block removed, the sliding block upper end is provided with the butt in the tight strip in top of shell fragment lower extreme.

As a further improvement of the above scheme, the chassis base is provided with a slide rail, the slide rail is arranged obliquely and upwards, and the lower end of the slide block is provided with a guide block matched with the slide rail.

Further, the slide rail is provided with many, many parallel interval arrangements of slide rail.

Further, chassis seat one end is provided with the draw-in groove, the draw-in groove is provided with the joint post, shell fragment one end is provided with the joint hole, and shell fragment one end stretches into in the draw-in groove and joint post card income is downthehole in the joint.

further, the chassis seat other end is provided with the deflector roll, the shell fragment other end butt is in the deflector roll below.

Further, the both ends of deflector roll are provided with limit baffle, the shell fragment is located between the limit baffle.

Furthermore, adjustment mechanism is including the screw rod, the one end of screw rod is provided with the screw rod gear, the sliding block spiro union is on the screw rod, brake valve lever is provided with the handle gear with screw rod gear engagement.

Furthermore, an inclined leading-in surface is arranged on one side of the tightening strip.

Furthermore, the elastic sheet is a glass fiber sheet.

One or more embodiments of the present invention have at least the following beneficial effects:

The elastic force adjusting structure comprises a chassis seat, a plurality of elastic pieces arranged along the front and back directions of a chassis are arranged on the chassis seat, an adjusting mechanism is arranged below the elastic pieces, the adjusting mechanism comprises a sliding block capable of moving along the front and back directions of the chassis and a control handle for controlling the sliding block to move, a tightening strip abutting against the lower end of the elastic pieces is arranged at the upper end of the sliding block, when the elastic force needs to be adjusted, the control handle only needs to be rotated to drive the sliding block to move, the tightening strip of the sliding block moves along the lower end of the elastic pieces and tightens the elastic pieces, so that the deformation range of the elastic pieces can be adjusted to adjust the elastic force, the elastic force adjusting structure replaces a traditional compression spring through the elastic pieces, the installation is simpler, only the elastic pieces need to be placed on the chassis seat for installation, the installation structure is simple, the operation is convenient, the practicability, the elasticity adjusting effect is better.

Drawings

fig. 1 is a schematic structural view of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 with the spring plate omitted;

FIG. 3 is an enlarged partial schematic view of FIG. 2;

FIG. 4 is a schematic diagram of a slider;

Fig. 5 is a schematic structural diagram of the elastic sheet.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.

Referring to fig. 1 to 5, an embodiment of the utility model provides a structure is adjusted to elasticity on seat chassis, including chassis seat 1, install a plurality of shell fragment 2 of arranging along the chassis fore-and-aft direction on the chassis seat, the quantity of shell fragment 2 can set up as required, can be two or three, four etc. the fine piece of glass is preferred to shell fragment 2, and its elastic strength is high, long service life, the below of shell fragment 2 is provided with adjustment mechanism 3, adjustment mechanism 3 is including the sliding block 31 that can follow the chassis fore-and-aft direction and the brake valve lever 32 that control sliding block 31 removed, sliding block 31 upper end is provided with the tight strip 311 in top of butt in shell fragment 2 lower extreme. When needs adjust elasticity, only need be through rotating control handle 32, control handle 32 drives sliding block 31 and removes, sliding block 31's tight strip 311 removes and pushes up tight shell fragment 2 along 2 lower extremes of shell fragment, thereby make the deformation range of shell fragment 2 adjust its elasticity, this elasticity is adjusted the structure and is passed through the traditional compression spring of shell fragment 2 replacement, its installation is more simple, only need place shell fragment 2 and install on chassis seat 1, the mounting structure is simple, high practicability has, and the elasticity change of shell fragment 2 is more balanced, the elasticity adjusting effect is better.

Preferably, the chassis base 1 is provided with a slide rail 11, the slide rail 11 is arranged obliquely upward, the lower end of the sliding block 31 is provided with a guide block 313 matched with the slide rail 311, the sliding block 31 slides more stably by being provided with the slide rail 11 and the guide block 313, and the slide rail 11 is arranged obliquely, so that the sliding block 31 slides on the slide rail 11 and continuously rises when the elastic force is adjusted, and the elastic piece 2 can be better pushed up.

preferably, the slide rail 11 is provided with a plurality of slide rails 11, and the plurality of slide rails 11 are arranged in parallel at intervals, so as to further improve the smoothness of the sliding of the slide block 31.

Preferably, 1 one end of chassis seat is provided with draw-in groove 12, draw-in groove 12 is provided with the joint post, 2 one ends of shell fragment are provided with joint hole 21, and 2 one ends of shell fragment stretch into in draw-in groove 12 and the joint post card is gone into in joint hole 21 to make 2 one end of shell fragment can obtain fine fixed, avoid it to drop out from chassis seat 1 easily.

preferably, the chassis base 1 other end is provided with deflector roll 4, 2 other end butts of shell fragment in deflector roll 4 below, and 2 one end of shell fragment stretch into in draw-in groove 12, and other end butts in deflector roll 4 below for shell fragment 2 is in the tensioning state always, can follow deflector roll 4 when shell fragment 2 can warp simultaneously and slide.

Preferably, the two ends of the guide roller 4 are provided with limit baffles, and the elastic sheet 2 is located between the limit baffles, so that the sliding range of the elastic sheet 2 can be limited by the limit baffles.

Preferably, the adjusting mechanism 3 includes a screw 33, a screw gear 331 is disposed at one end of the screw 33, the sliding block 31 is screwed on the screw 33, the control handle 32 is disposed with a handle gear 321 engaged with the screw gear 331, and when adjusting the elastic force, the control handle is rotated to drive the screw gear to rotate by the handle gear, and further the screw 33 rotates to drive the sliding block 31 to move on the screw 33, which is very convenient to operate.

Preferably, an inclined leading-in surface 312 is arranged on one side of the tightening strip 311, and the tightening strip 311 is in more gentle contact with the elastic sheet 2 when the elastic force is adjusted through the inclined leading-in surface 312, so that the elastic force is adjusted more stably.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited thereto, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (9)

1. The utility model provides a structure is adjusted to elasticity of seat chassis which characterized in that: the chassis comprises a chassis base, install a plurality of shell fragments of arranging along the chassis fore-and-aft direction on the chassis base, the below of shell fragment is provided with adjustment mechanism, adjustment mechanism is including the sliding block that can follow the chassis fore-and-aft direction and the brake valve lever that control sliding block removed, the sliding block upper end is provided with the butt in the tight strip in top of shell fragment lower extreme.

2. The seat pan spring force adjusting structure according to claim 1, wherein: the chassis base is provided with a slide rail, the slide rail is arranged upwards in an inclined mode, and a guide block matched with the slide rail is arranged at the lower end of the sliding block.

3. The seat pan spring force adjusting structure according to claim 2, wherein: the slide rail is provided with many, many parallel interval arrangements of slide rail.

4. The seat pan spring force adjusting structure according to claim 1, wherein: chassis seat one end is provided with the draw-in groove, the draw-in groove is provided with the joint post, shell fragment one end is provided with the joint hole, and shell fragment one end stretches into in the draw-in groove and joint post card income is downthehole in the joint.

5. The seat pan spring force adjusting structure according to claim 4, wherein: the chassis seat other end is provided with the deflector roll, the shell fragment other end butt in deflector roll below.

6. The seat pan spring force adjusting structure according to claim 5, wherein: the both ends of deflector roll are provided with limit baffle, the shell fragment is located between the limit baffle.

7. The seat pan resilient force adjusting structure according to any one of claims 1 to 6, wherein: the adjusting mechanism comprises a screw rod, a screw rod gear is arranged at one end of the screw rod, the sliding block is connected to the screw rod in a threaded mode, and the control handle is provided with a handle gear meshed with the screw rod gear.

8. The seat pan resilient force adjusting structure according to any one of claims 1 to 6, wherein: and one side of the tightening strip is provided with an inclined leading-in surface.

9. The seat pan resilient force adjusting structure according to any one of claims 1 to 6, wherein: the elastic sheet is a glass fiber sheet.