CN212972380U

CN212972380U - Lifting device for office chair armrest

Info

Publication number: CN212972380U
Application number: CN202021638302.9U
Authority: CN
Inventors: 梁宗亮
Original assignee: Hebei Fu Douhuachuan Furniture Manufactures Co ltd
Current assignee: Hebei Fu Douhuachuan Furniture Manufactures Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-04-16
Anticipated expiration: 2030-08-10

Abstract

The utility model discloses a lifting device of office chair handrail, including bottom plate and horizontal pole, the top outer wall of bottom plate has the dead lever through the bolt fastening, the top outer wall of dead lever is connected with the bedplate through the bearing, the both sides on bedplate top outer wall both sides all have fixed cover through the bolt fastening, the top outer wall of fixed cover is opened there is the spliced eye, the inner wall of spliced eye is pegged graft and is had the lifter, the top outer wall of lifter has the handrail body through the bolt fastening, the both sides of handrail body bottom outer wall all have the telescopic link through the bolt fastening, the one end of telescopic link piston rod has the connecting plate through the bolt fastening, there is the pull rod both sides of the bottom outer wall of connecting plate all through hinged joint. The utility model discloses when people loose the connecting plate, adjust the automatic chucking of tooth and fix the tooth to fix the handrail body, it is convenient to adjust, and degree of automation is higher, and the practicality is stronger.

Description

Lifting device for office chair armrest

Technical Field

The utility model relates to an office chair technical field especially relates to a lifting device of office chair handrail.

Background

The office chair refers to various chairs which are equipped for working conveniently in daily work and social activities. Office chairs are classified into a narrow office chair and a generalized office chair, the narrow office chair refers to a backrest chair on which a person sits when working on a desktop in a sitting posture, and the generalized office chair is all chairs used in offices and comprises a large office chair, a middle office chair, a guest-meeting chair, a staff chair, a conference chair, a visitor chair, a training chair and the like.

The existing lifting device for the armrest of the office chair has the following defects: along with the development of society, the office chair is widely used gradually, but people also rise gradually to the requirement of office chair, when people use the office chair, because everyone's size is different with the height, people are also different to the high demand of handrail, and current office chair handrail elevating gear is convenient inadequately to the altitude mixture control of handrail, and the practicality is relatively poor.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a lifting device of an office chair armrest.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a lifting device of an office chair armrest comprises a bottom plate and a cross rod, wherein a fixed rod is fixed on the outer wall of the top of the bottom plate through a bolt, the outer wall of the top end of the fixed rod is connected with a seat plate through a bearing, two sides of the outer wall of the top of the seat plate are both fixed with fixed sleeves through bolts, the outer wall of the top end of the fixed sleeve is provided with an inserting hole, the inner wall of the inserting hole is inserted with a lifting rod, the outer wall of the top end of the lifting rod is fixed with a handrail body through bolts, the two sides of the outer wall of the bottom of the handrail body are both fixed with telescopic rods through bolts, one end of the telescopic rod piston rod is fixed with a connecting plate through a bolt, both sides of the outer wall of the bottom of the connecting plate are connected with pull rods through hinges, one end of the pull rod is connected with adjusting teeth through a hinge, and the outer wall of one side, opposite to the fixed sleeve, of each of the two fixed sleeves is fixed with fixed teeth which are distributed equidistantly through bolts.

Furthermore, a chair rest is fixed on the outer wall of one side of the seat board through bolts, and a headrest is fixed on the outer wall of one side of the chair rest through bolts.

Further, the outer walls of the two sides of the cross rod are connected with the outer wall of the adjusting tooth through hinges, and an extension spring is fixed on the outer wall of one side of the cross rod through a bolt.

Furthermore, one end of the telescopic spring is fixed on the outer wall of one side of the adjusting teeth through a bolt, and the fixing teeth and the adjusting teeth are matched for use.

Furthermore, the bottom outer wall of the bottom plate is fixed with mounting blocks which are distributed at equal intervals through bolts, and the bottom outer wall of each mounting block is fixed with universal wheels through bolts.

Furthermore, a rubber pad is fixed on the outer wall of the top of the handrail body through a bolt.

The utility model has the advantages that:

1. this elevating gear of office chair handrail, through being provided with the handrail body, the telescopic link, the pull rod, the horizontal pole, fixed tooth and regulation tooth, when people need adjust the height of handrail body, people hold the connecting plate and upwards mention, the connecting plate drives the telescopic link upward movement, drive pull rod upward movement in the time of the telescopic link upward movement, the pull rod pulling is adjusted the tooth and is broken away from fixed tooth, thereby can adjust the height of whole handrail body, when people loose the connecting plate, adjust the automatic chucking of tooth and fix the tooth, thereby fix the handrail body, it is convenient to adjust, degree of automation is higher, and the practicality is stronger.

2. This elevating gear of office chair handrail through being provided with universal wheel and headrest, can strengthen the convenience that the seat used through the universal wheel, makes things convenient for people to remove the seat, can strengthen the comfortable degree of seat through the headrest.

3. This elevating gear of office chair handrail through being provided with the rubber pad, can prevent that people's arm from touching the handrail body carelessly and causing the arm to be damaged through the rubber pad, and the security performance is stronger.

The part not related in the device all is the same with prior art or can adopt prior art to realize, and the device design structure is reasonable, and convenient to use satisfies people's user demand.

Drawings

Fig. 1 is a three-dimensional structure diagram of a lifting device for an office chair armrest according to embodiment 1 of the present invention;

fig. 2 is a three-dimensional structure diagram of a handrail body of the lifting device of the office chair handrail provided by the utility model;

fig. 3 is an enlarged schematic structural view of a lifting device of an office chair armrest, which is provided by the present invention;

fig. 4 is a three-dimensional structure diagram of a lifting device for an armrest of an office chair according to embodiment 2 of the present invention.

In the figure: 1-headrest, 2-chair back, 3-lifting rod, 4-fixing sleeve, 5-seat board, 6-bottom board, 7-universal wheel, 8-fixing tooth, 9-cross bar, 10-pull rod, 11-telescopic rod, 12-armrest body, 13-adjusting tooth, 14-telescopic spring and 15-rubber pad.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-3, a lifting device of office chair armrest, including bottom plate 6 and horizontal pole 9, the top outer wall of bottom plate 6 has the dead lever through the bolt fastening, the top outer wall of dead lever is connected with bedplate 5 through the bearing, the both sides on bedplate 5 top outer wall both sides all have fixed cover 4 through the bolt fastening, the top outer wall of fixed cover 4 is opened there is the spliced eye, the inner wall of spliced eye is pegged graft and is had lifter 3, the top outer wall of lifter 3 has handrail body 12 through the bolt fastening, the both sides of handrail body 12 bottom outer wall all have telescopic link 11 through the bolt fastening, the one end of telescopic link 11 piston rod has the connecting plate through the bolt fastening, the both sides of the bottom outer wall of connecting plate all have pull rod 10 through hinged joint, the one end of pull rod 10 has regulation tooth 13 through hinged joint, the relative one side outer wall of two fixed covers.

In the utility model, the outer wall of one side of the seat plate 5 is fixed with the chair backrest 2 through the bolt, and the outer wall of one side of the chair backrest 2 is fixed with the headrest 1 through the bolt.

The utility model discloses in, the both sides outer wall of horizontal pole 9 all is connected with the outer wall of adjusting tooth 13 through the hinge, and one side outer wall of horizontal pole 9 has expanding spring 14 through the bolt fastening.

The utility model discloses in, the one end of expanding spring 14 is passed through the bolt fastening and is adjusted one side outer wall of tooth 13, and fixed tooth 8 and the cooperation of adjusting tooth 13 are used.

The utility model discloses in, the bottom outer wall of bottom plate 6 has the installation piece that the equidistance distributes through the bolt fastening, and the bottom outer wall of installation piece has universal wheel 7 through the bolt fastening.

The working principle is as follows: during the use, people sit earlier on bedplate 5, can strengthen the comfortable degree of seat through headrest 1, when people need adjust the height of handrail body 12, people hold the connecting plate and mention upwards, the connecting plate drives telescopic link 11 upward movement, telescopic link 11 drives pull rod 10 upward movement when moving upwards, pull rod 10 pulling is adjusted tooth 13 and is broken away from fixed tooth 8, thereby can adjust the height of whole handrail body 12, when people loose the connecting plate, adjust the automatic chucking fixed tooth 8 of tooth 13, thereby fix handrail body 12, can easily remove the seat through universal wheel 7.

Example 2

Referring to fig. 4, the lifting device for an armrest of an office chair in this embodiment, compared to embodiment 1, further includes a rubber pad 15 fixed to an outer wall of a top portion of the armrest body 12 through a bolt.

The working principle is as follows: the rubber pad 15 can prevent the arm of the person from being damaged due to the fact that the arm of the person carelessly touches the armrest body 12.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A lifting device of an office chair armrest comprises a bottom plate (6) and a cross rod (9), and is characterized in that a fixed rod is fixed on the outer wall of the top of the bottom plate (6) through bolts, the outer wall of the top end of the fixed rod is connected with a seat plate (5) through a bearing, two sides of the outer wall of the top of the seat plate (5) are respectively fixed with a fixed sleeve (4) through bolts, the outer wall of the top end of the fixed sleeve (4) is provided with an inserting hole, the inner wall of the inserting hole is inserted with a lifting rod (3), the outer wall of the top end of the lifting rod (3) is fixed with an armrest body (12) through bolts, two sides of the outer wall of the bottom of the armrest body (12) are respectively fixed with a telescopic rod (11) through bolts, one end of a piston rod of the telescopic rod (11), one end of the pull rod (10) is connected with adjusting teeth (13) through a hinge, and two fixing teeth (8) which are distributed equidistantly are fixed on the outer wall of one side, opposite to the fixing sleeve (4), of the fixing sleeve through bolts.

2. The lifting device of the armrest of the office chair as claimed in claim 1, wherein the seat plate (5) is fixed with the backrest (2) through bolts at one side of the outer wall, and the headrest (1) is fixed with the backrest (2) through bolts at one side of the outer wall.

3. The lifting device of the armrest of the office chair as claimed in claim 1, characterized in that the outer walls of both sides of the cross bar (9) are connected with the outer wall of the adjusting tooth (13) through hinges, and the outer wall of one side of the cross bar (9) is fixed with a telescopic spring (14) through a bolt.

4. The lifting device of the armrest of the office chair as claimed in claim 3, characterized in that one end of the extension spring (14) is fixed on one side outer wall of the adjusting tooth (13) through a bolt, and the fixed tooth (8) and the adjusting tooth (13) are matched for use.

5. The lifting device of the armrest of the office chair as claimed in claim 1, characterized in that the bottom outer wall of the bottom plate (6) is fixed with mounting blocks which are distributed at equal intervals through bolts, and the bottom outer wall of the mounting blocks is fixed with universal wheels (7) through bolts.

6. The lifting device of the armrest of the office chair as claimed in claim 1, wherein the top outer wall of the armrest body (12) is fixed with a rubber pad (15) through a bolt.