CN212325924U

CN212325924U - Double-back and waist height-adjusting structure

Info

Publication number: CN212325924U
Application number: CN202021473074.4U
Authority: CN
Inventors: 郭丽夷
Original assignee: Zhongshan Mesch Furniture Co ltd
Current assignee: Zhongshan Mesch Furniture Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-01-12
Anticipated expiration: 2030-07-23
Also published as: TWM623161U

Abstract

The utility model relates to a seat accessory technical field specifically is a two back of body waist heightening structures, including device main part, rotary mechanism, the device main part includes that the back of the chair, bolt, spacing spring, bustle heighten the locating piece, heighten the fixed block, bustle heighten control block and waist heighten the fixed block screw, the inside of the back of the chair is provided with the bolt, and the bolt runs through spacing spring, spacing spring sets up inside bustle heightening the locating piece, and spacing spring embedding bustle heightening the locating piece, bustle heightening the locating piece and bustle heightening the control block and be connected, bustle heightening the locating piece and bustle heightening the control block embedding heightening fixed block, heightening the fixed block and heightening the fixed block screw thread connection on the back of the chair through the waist. The utility model provides a but simple structure, waist angle automatically regulated to can improve the convenience and the practicality of device according to the tensile waist bearing structure around under the human office state.

Description

Double-back and waist height-adjusting structure

Technical Field

The utility model relates to a seat accessory technical field specifically is a two back of body waist structure of increaseing.

Background

With the continuous development of the office chair production industry, chair accessories are also continuously developed, the existing chair is provided with different structures according to different use scenes, when people need to keep sitting at the office for a long time, one part of the chair is provided with a backrest to help people to sit comfortably, so that the existing chair basically meets the use requirements of people, and the following problems still exist.

The waist of traditional device is supporting unable automatic angle regulation at the in-process that uses, the back of the seat to also can't be according to people's operating condition front and back tensile, reduced people's use and experienced, reduced the practicality of device, therefore urgent need a two back waist structure of increaseing solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a structure is increaseed to two back of the body waists to solve the unable automatically regulated angle of traditional device that proposes in the above-mentioned background art and can't follow the tensile problem in position of sitting front and back in the use.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a structure is increaseed to two backs of bodies waist, includes device main part, rotary mechanism, its characterized in that: the device main part includes the back of the chair, bolt, spacing spring, bustle heighten the locating piece, heighten the fixed block, bustle heightens the control block and waist heightens the fixed block screw, the inside of the back of the chair is provided with the bolt, and the bolt runs through spacing spring, spacing spring setting heightens inside the locating piece at bustle, and spacing spring embedding bustle heightens the locating piece, bustle heightens the locating piece and is connected with bustle heightening control block, bustle heightens the locating piece and bustle heightens the control block embedding and heightens the fixed block, heighten the fixed block and heighten fixed block screw thread connection on the back of the chair through the waist.

One side of the back of the chair is provided with rotary mechanism, rotary mechanism includes waist screw rod fixed screw, the rotatory fixed block of waist, waist spring briquetting, waist elasticity adjusting screw, supports waist pad and elasticity adjusting screw, the bottom embedding waist screw rod fixed screw's of waist pad heightening control block inside, and one side of waist screw rod fixed screw is provided with the rotatory fixed block of waist, the inside recess one end of the rotatory fixed block of waist is fixed with the waist spring, and the top embedding of the inside waist spring of the rotatory fixed block of waist has waist spring briquetting, and the inside of the waist spring of telling runs through there is waist elasticity adjusting screw, and waist elasticity adjusting screw will waist rotatory fixed block, waist spring and support waist pad all through connection, the waist spring is laminated with elasticity adjusting screw.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this two back of body waist structure of increaseing is provided with waist screw rod set screw and supports the bustle, and in the in-process of using, the rotation angle that supports the bustle is spacing to be controlled through two steps of the square column bottom that stretch out in the middle of supporting the bustle and the inside recess of waist rotation fixed block, supports the rotatory elasticity of bustle and combines the control through the thread on elasticity adjusting screw and the waist spring briquetting. After the elasticity adjusting screw is locked, the waist spring pressing block can move forwards to press the waist spring, accordingly, the rotating force of the supporting waist pad is increased, otherwise, the rotating force is reduced, and the convenience and the practicability of the device are improved through the design.

2. This two back of body waist structure of increaseing is provided with the back of the chair and supports the bustle, increases the tooth on control block and the rotatory fixed block of waist through the bustle and realizes supporting the tensile location in bustle front and back, through such design, supports the bustle and can realize the circulation and go up and down, has improved the convenience and the practicality of device.

Drawings

Fig. 1 is a structural blasting schematic diagram of the present invention;

fig. 2 is an enlarged schematic view of the structure at a in fig. 1 according to the present invention;

fig. 3 is a structural blasting schematic diagram of the bolt, the limiting spring, the waist pad heightening positioning block, the heightening fixing block, the waist pad heightening control block and the waist rotation fixing block of the utility model;

fig. 4 is an enlarged schematic view of the structure at a in fig. 3 according to the present invention;

fig. 5 is a schematic top sectional view of the brake lever and the fixture block according to the present invention.

In the figure: 100. a device main body; 110. a chair back; 111. a bolt; 112. a limiting spring; 113. a waist pad height adjusting positioning block; 114. heightening the fixed block; 115. a waist pad height adjusting control block; 116. a waist height adjusting fixed block screw; 200. a rotation mechanism; 210. a waist screw fixing screw; 211. a waist rotation fixing block; 212. a waist spring; 213. a waist spring pressing block; 214. a waist elastic force adjusting screw; 215. a support waist pad; 216. elasticity adjusting screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment:

the utility model provides a two back waist structure of increaseing, including device main part 100, rotary mechanism 200, device main part 100 includes back of the chair 110, bolt 111, spacing spring 112, waist pad height adjusting locating piece 113, heighten fixed block 114, waist pad height adjusting control block 115 and waist height adjusting fixed block screw 116, the inside of back of the chair 110 is provided with bolt 111, and bolt 111 runs through spacing spring 112, spacing spring 112 sets up inside waist pad height adjusting locating piece 113, and spacing spring 112 embedding waist pad height adjusting locating piece 113, waist pad height adjusting locating piece 113 is connected with waist pad height adjusting control block 115 block, waist pad height adjusting locating piece 113 and waist pad height adjusting control block 115 embedding height adjusting fixed block 114, height adjusting fixed block 114 passes through waist height adjusting fixed block screw 116 threaded connection on back of the chair 110, through such design, make the seat can the automatically regulated angle, the convenience and the practicality of device have been improved.

A rotating mechanism 200 is arranged at one side of the chair back 110, the rotating mechanism 200 comprises a waist screw rod fixing screw 210, a waist rotating fixing block 211, a waist spring 212, a waist spring pressing block 213, a waist elastic force adjusting screw 214, a supporting waist cushion 215 and an elastic force adjusting screw 216, the bottom end of the waist cushion heightening control block 115 is embedded into the waist rotating fixing block 211, the waist screw rod fixing screw 210 is arranged at one side of the waist rotating fixing block 211, the waist spring 212 is fixed at one end of an inner groove of the supporting waist cushion 215, the waist spring pressing block 213 is embedded at the top end of the waist spring 212 in the waist rotating fixing block 211, the waist elastic force adjusting screw 214 penetrates through the inside of the waist spring 212, the waist rotating fixing block 211, the waist spring 212 and the supporting waist cushion 215 are connected in a penetrating manner by the waist elastic force adjusting screw 214, the waist spring 212 is jointed with the elastic force adjusting screw 216, and the device, the convenience of the device is improved.

The working principle is as follows: the waist support pad 215 is fixed on the chair back 110 through a waist elastic force adjusting screw 214, a waist rotation fixing block 211 and a heightening fixing block 114, the waist support pad 215, the waist rotation fixing block 211 and the waist spring 212 are connected through the waist elastic force adjusting screw 214, one end of the waist spring 212 is fixed in a groove in the middle of the waist support pad 215, the other end is pressed through a waist spring pressing block 213, the waist elastic force adjusting screw 214 is fixed on the waist rotation fixing block 211 through a waist screw fixing screw 210, the waist support pad 215 rotates with the waist elastic force adjusting screw 214 as a center, the rotation angle of the waist support pad 215 is controlled by limiting two steps at the bottom of a square column extending out of the middle of the waist support pad 215 and a groove in the waist rotation fixing block 211, the rotation elastic force of the waist support pad 215 is controlled by combining an elastic force adjusting screw 216 and a thread on the waist spring pressing block 213, and when the elastic force adjusting screw 216, the lumbar spring 212 is compressed and, correspondingly, the force to rotate the support lumbar pad 215 increases and, conversely, decreases.

The rotating part of the supporting waist cushion 215 is fixed on the chair back 110 through the heightening fixed block 114, the convex blocks at two sides of the front end of the waist cushion heightening control block 115 are combined with the grooves at two sides of the waist rotating fixed block 211 to play a role in limiting the highest point pulled out by the supporting waist cushion 215, the function of the supporting waist cushion is realized by the teeth of the waist cushion heightening positioning block 113 and the waist rotating fixed block 211, one end of the limiting spring 112 is propped against the step in the 5 waist heightening fixed block 114, the other end of the limiting spring presses the groove of the waist cushion heightening positioning block 113, the arc-shaped convex blocks at two sides of the waist cushion heightening control block 115 and the corresponding grooves of the heightening fixed block 114 play a role in positioning, the waist cushion heightening positioning block 113 can be pulled forwards and fixed at a certain height through the action of the limiting spring 112 in the process of forward stretching the supporting waist cushion 215, and when the supporting waist cushion 215 is pulled to the highest point, the lower side of the convex block at Then, the supporting lumbar pad 215 is pulled forward continuously, the lumbar pad heightening control block 115 rises to jack up the lumbar pad heightening positioning block 113, so that the teeth on the lumbar pad heightening positioning block 113 are separated from the teeth on the lumbar rotation fixing block 211, the lumbar pad automatically drops to the lowest point, after the supporting lumbar pad 215 drops to the lowest point, the upper side of the projection at the upper end of the lumbar pad heightening control block 115 contacts the lower limit points at the two sides of the teeth of the lumbar rotation fixing block 211, the lumbar pad heightening control block 115 drops, the lumbar pad heightening positioning block 113 is separated from the lumbar pad heightening control block 115, the teeth on the lumbar pad heightening positioning block 113 are in re-contact with the teeth of the lumbar rotation fixing block 211 under the action of the limit spring 112, so that the supporting lumbar pad 215 achieves the function of cyclic lifting, and the operation is finished.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a two back of body waist structure of increaseing, includes device main part (100), rotary mechanism (200), its characterized in that: device main part (100) heighten locating piece (113), heighten fixed block (114), bustle heighten control block (115) and bustle heighten fixed block screw (116) including back of the chair (110), bolt (111), spacing spring (112), bustle heighten fixed block screw (116), the inside of back of the chair (110) is provided with bolt (111), and bolt (111) runs through spacing spring (112), spacing spring (112) set up inside bustle heighten locating piece (113), and spacing spring (112) embedding bustle heighten locating piece (113), bustle heighten locating piece (113) and bustle heighten control block (115) block and be connected, bustle heighten locating piece (113) and bustle heighten control block (115) embedding heighten fixed block (114), heighten fixed block (114) and heighten fixed block screw (116) threaded connection on back of the chair (110) through bustle heighten fixed block screw (116).

2. The double-back and waist height-adjusting structure according to claim 1, wherein: one side of the back of the chair (110) is provided with rotary mechanism (200), rotary mechanism (200) include waist screw rod fixed screw (210), the rotatory fixed block of waist (211), waist spring (212), waist spring briquetting (213), waist elasticity adjusting screw (214), support bustle (215) and elasticity adjusting screw (216), the inside of the rotatory fixed block of waist (211) is inlayed to the bottom of bustle height-adjusting control block (115), and one side of the rotatory fixed block of waist (211) is provided with waist screw rod fixed screw (210), the inside recess one end of the rotatory fixed block of waist (211) is fixed with waist spring (212), and the top embedding of the rotatory fixed block of waist (211) inside waist spring (212) of waist has waist spring briquetting (213), and the inside of the waist spring (212) of telling runs through waist elasticity adjusting screw (214), and waist elasticity adjusting screw (214) with the rotatory fixed block of waist (211), The waist spring (212) and the supporting waist pad (215) are connected in a penetrating way, and the waist spring (212) is jointed with the elastic force adjusting screw (216).