CN211154671U

CN211154671U - Height-adjustable lifter of office swivel chair

Info

Publication number: CN211154671U
Application number: CN201922244677.0U
Authority: CN
Inventors: 许全金
Original assignee: Foshan Shunde Weiyasi Precision Machinery Co ltd
Current assignee: Foshan Shunde Weiyasi Precision Machinery Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-08-04
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses an adjustable height lifter of an office swivel chair, which comprises a threaded rod and a loop bar sleeved at the bottom of the threaded rod, wherein locking mechanisms are arranged on two sides of the top of the loop bar, each locking mechanism comprises a pin shaft and a rotating handle for manually adjusting the tightness of the pin shaft, one end of the inner side of the pin shaft is propped against two sides of the surface of the threaded rod for fixing, one end of the outer side of the pin shaft is positioned outside the loop bar, and the rotating handle is fixed at one end of the outer side of the pin shaft; a spring for stably lifting is sleeved between the bottom of the threaded rod and the inner wall of the bottom of the sleeve rod; the utility model provides an adjustable height lifter of an office swivel chair, which can adjust the height through the matching of a threaded rod and a threaded cylinder, does not need to use a pneumatic rod and improves the safety performance; simultaneously, be provided with locking Assembly at the top of loop bar, consolidate the threaded rod and be connected with the loop bar, prevent that the threaded rod from rocking for the loop bar production, be equipped with the spring in the bottom of threaded rod, make the riser more steady when going up and down.

Description

Height-adjustable lifter of office swivel chair

Technical Field

The utility model belongs to the technical field of articles for daily use technique and specifically relates to but relate to office swivel chair height-adjusting riser.

Background

Along with the continuous popularization of computers and the more humanization of public places, the application range of the swivel chairs is larger and larger, a large number of swivel chairs are used by various organ units, enterprise and public institutions, companies, factory and mining enterprises, schools, troops, internet bars and the like, and convenience is brought to the use of people. Most of the prior rotary chairs adopt the air pressure rod to adjust the height of the rotary chairs, the air pressure rod has great potential safety hazard in use, explosion is easy to cause, the structure of the air pressure rod is complex, and the requirements of qualified materials, qualified manufacture, qualified inflation and the like are met. Therefore, a height-adjustable lifter with high safety performance is required to be provided in the market.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

The height-adjustable lifter of the office swivel chair comprises a threaded rod and a loop bar sleeved at the bottom of the threaded rod, wherein locking mechanisms are arranged on two sides of the top of the loop bar, each locking mechanism comprises a pin shaft and a rotating handle for manually adjusting the tightness of the pin shaft, one end of the inner side of the pin shaft abuts against two sides of the surface of the threaded rod to be fixed, one end of the outer side of the pin shaft is positioned outside the loop bar, and the rotating handle is fixed at one end of the outer side of the pin shaft; and a spring for stably lifting is sleeved between the bottom of the threaded rod and the inner wall of the bottom of the sleeve rod.

Preferably, a threaded pipe is fixed to the top of the loop bar, an internal threaded hole is formed in the threaded pipe, and the threaded rod is in threaded connection with the internal threaded hole.

Preferably, both sides of the top of the loop bar are provided with through holes, and one end of the inner side of the pin shaft penetrates through the through holes to abut against the threaded rod.

Preferably, a fixed block is fixed at the bottom of the threaded rod, a threaded area is arranged on the surface of the fixed block, and the spring is sleeved on the surface of the fixed block through the threaded area.

Preferably, a circular groove with the radius larger than the outer diameter of the spring is formed on the inner wall of the bottom of the loop bar, and the bottom of the spring is rotatably connected in the circular groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides an adjustable height lifter of an office swivel chair, which can adjust the height through the matching of a threaded rod and a threaded cylinder, does not need to use a pneumatic rod and improves the safety performance; simultaneously, be provided with locking Assembly at the top of loop bar, consolidate the threaded rod and be connected with the loop bar, prevent that the threaded rod from rocking for the loop bar production, be equipped with the spring in the bottom of threaded rod, make the threaded rod more steady when rotating the lift.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of an adjustable height lift for an office swivel chair;

fig. 2 is a schematic structural view of the loop bar.

In the figure: 1. threaded rod, 2, loop bar, 3, round pin axle, 4, rotatory handle, 5, spring, 6, screwed pipe, 7, internal thread hole, 8, perforation, 9, fixed block, 10, circular recess.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but 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. 1-2, in an embodiment of the present invention, an adjustable height lifter for an office swivel chair includes a threaded rod 1 and a loop bar 2 sleeved at the bottom of the threaded rod 1, wherein a threaded pipe 6 is fixed at the top of the loop bar 2, an internal threaded hole 7 is formed in the threaded pipe 6, and the threaded rod 1 is in threaded connection with the internal threaded hole 7; two sides of the top of the loop bar 2 are provided with locking mechanisms, each locking mechanism comprises a pin shaft 3 and a rotating handle 4 for manually adjusting the tightness of the pin shaft 3, two sides of the top of the loop bar 2 are both provided with a through hole 8, one end of the inner side of the pin shaft 3 penetrates through the through hole 8 to abut against the threaded rod 1, so that the threaded rod 1 is fixed, one end of the outer side of the pin shaft 3 is positioned outside the loop bar 2, and the rotating handle 4 is fixed at one end of the outer side of the pin shaft 3; and a spring 5 for stably lifting the threaded rod 1 is sleeved between the bottom of the threaded rod 1 and the inner wall of the bottom of the sleeve rod 2.

A fixed block 9 is fixed at the bottom of the threaded rod 1, a threaded area is arranged on the surface of the fixed block 9, and the spring 5 is sleeved on the surface of the fixed block 9 through the threaded area; a circular groove 10 with the radius larger than the outer diameter of the spring 5 is formed in the inner wall of the bottom of the loop bar 2, and the bottom of the spring 5 is rotatably connected in the circular groove 10.

When the height of official working swivel chair is adjusted to needs, through rotating threaded rod 1, increase threaded rod 1 and stretch into the length in loop bar 2, official working swivel chair reduces promptly, reduce the length that threaded rod 1 stretches into in loop bar 2, official working swivel chair increases promptly, easy operation is convenient, and when threaded rod 1 rotated the lift, spring 5 between threaded rod 1 and the loop bar 2 can make it lift steadily, official working swivel chair has adjusted high back, locking mechanism on the accessible loop bar 2 locks threaded rod 1 fixedly, can prevent that threaded rod 1 from taking place to rock for loop bar 2, improve and use the comfort.

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.

Claims

1. The height-adjustable lifter of the office swivel chair comprises a threaded rod and a loop bar sleeved at the bottom of the threaded rod, and is characterized in that locking mechanisms are arranged on two sides of the top of the loop bar, each locking mechanism comprises a pin shaft and a rotating handle used for manually adjusting the tightness of the pin shaft, one end of the inner side of the pin shaft abuts against two sides of the surface of the threaded rod to be fixed, one end of the outer side of the pin shaft is positioned outside the loop bar, and the rotating handle is fixed at one end of the outer side of the pin shaft; and a spring for stably lifting is sleeved between the bottom of the threaded rod and the inner wall of the bottom of the sleeve rod.

2. The adjustable height riser of an office swivel chair as claimed in claim 1, wherein a threaded tube is fixed to the top of the loop bar, the threaded tube is provided with an internal threaded hole, and the threaded rod is threadedly connected to the internal threaded hole.

3. The adjustable height lift of an office swivel chair as claimed in claim 1, wherein the two sides of the top of the loop bar are provided with through holes, and one end of the inner side of the pin shaft passes through the through holes to abut against the threaded rod.

4. An adjustable height lift for an office swivel chair as claimed in claim 1, wherein a fixed block is fixed to the bottom of the threaded rod, the fixed block having a threaded region on the surface thereof, and the spring is fitted over the surface of the fixed block through the threaded region.

5. An adjustable height lift for an office swivel chair as claimed in claim 1, wherein a circular groove having a radius larger than the outer diameter of the spring is formed on the inner wall of the bottom of the loop bar, and the bottom of the spring is rotatably connected in the circular groove.