CN210842304U

CN210842304U - Backrest adjusting mechanism of class chair

Info

Publication number: CN210842304U
Application number: CN201921739536.XU
Authority: CN
Inventors: 邵玉光; 王芳
Original assignee: Qingdao Wanbang Century Trading Co ltd
Current assignee: Qingdao Wanbang Century Trading Co ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-06-26
Anticipated expiration: 2029-10-16

Abstract

The utility model discloses a back adjustment mechanism of class chair, including class chair, the right side fixedly connected with backup pad of class chair, the front of backup pad has the adjustment disk through pivot swing joint, the top fixedly connected with connecting rod of adjustment disk, the top fixedly connected with back of connecting rod, the draw-in groove has been seted up on the surface of adjustment disk, the right side fixedly connected with casing of class chair bottom. The utility model discloses a set up class chair, backup pad, adjustment disk, connecting rod, back, draw-in groove, casing, slide bar, sliding ring, spring, push rod, movable plate, transfer line, spout, slider, diaphragm, inclined hole board, riser, horizontal pole and kelly and cooperate the use, the back of having solved current class chair is fixed problem mostly, this class chair's back adjustment mechanism possesses back inclination adjustable advantage, the inclination of back can be adjusted, convenient to use person uses, the commonality of class chair has been improved.

Description

Backrest adjusting mechanism of class chair

Technical Field

The utility model relates to a chair technical field specifically is a chair's back adjustment mechanism.

Background

The class chair is a rising noun in modern times, and is a common word in the furniture industry, mainly refers to a chair for office workers to work in offices, so the class chair is called as a class chair, and most of the situations refer to luxury chairs for managers and general managers, and the class chair is needed to work in offices.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a back adjustment mechanism of class chair possesses back inclination adjustable advantage, and the back of having solved current class chair is fixed problem mostly.

In order to achieve the above object, the utility model provides a following technical scheme: a backrest adjusting mechanism of a class chair comprises the class chair, wherein a supporting plate is fixedly connected to the right side of the class chair, an adjusting disc is movably connected to the front side of the supporting plate through a rotating shaft, a connecting rod is fixedly connected to the top of the adjusting disc, a backrest is fixedly connected to the top of the connecting rod, a clamping groove is formed in the surface of the adjusting disc, a shell is fixedly connected to the right side of the bottom of the class chair, a sliding rod is transversely and fixedly connected to the inside of the shell, a sliding ring is slidably connected to the surface of the sliding rod, a spring is sleeved on the right side of the surface of the sliding rod, the left end of the spring is fixedly connected to the right side of the sliding ring, the right end of the spring is fixedly connected to the bottom of the right side of the inner wall of the shell, a push rod is fixedly connected to the bottom of the, the inside sliding connection of spout has the slider, the inboard fixedly connected with diaphragm of slider, the bottom fixedly connected with of diaphragm uses with the transfer line cooperation inclined hole board, the top fixedly connected with riser of diaphragm, the right side fixedly connected with horizontal pole of riser, the right-hand member of horizontal pole runs through to the outside fixedly connected with kelly of casing, the top of kelly extends to the inside of draw-in groove.

Preferably, the bottom of the class chair is fixedly connected with universal wheels, and the universal wheels are matched with the class chair for use.

Preferably, the number of draw-in grooves is a plurality of, and a plurality of draw-in grooves is equidistance around setting about the adjustment disk.

Preferably, the bottom of the push rod penetrates through the shell and is fixedly connected with a push disc, and anti-skid grains are arranged on the surface of the push disc.

Preferably, the moving plate is located at the rear side of the inclined hole plate, the front end of the transmission rod extends into the inclined hole plate, and the surface of the transmission rod is connected with the inner wall of the inclined hole plate in a sliding mode.

Preferably, the groove type of spout is trapezoidal, the cross section of slider is trapezoidal, the slider uses with the spout cooperation.

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

1. the utility model discloses a set up class chair, backup pad, adjustment disk, connecting rod, back, draw-in groove, casing, slide bar, sliding ring, spring, push rod, movable plate, transfer line, spout, slider, diaphragm, inclined hole board, riser, horizontal pole and kelly and cooperate the use, the back of having solved current class chair is fixed problem mostly, this class chair's back adjustment mechanism possesses back inclination adjustable advantage, the inclination of back can be adjusted, convenient to use person uses, the commonality of class chair has been improved.

2. The utility model discloses a set up the universal wheel, can make class chair have the removal function, convenient to use person removes class chair at will, through setting up the draw-in groove, can fix the adjustment disk with the kelly cooperation, prevents that the adjustment disk is abnormal to be rotated, pushes away the dish through setting up, can increase the area of contact of user's hand and push rod, and convenient to use person promotes the push rod through pushing away the dish, through setting up slider and spout, can increase the stability that the diaphragm goes up and down, inclines when preventing that the diaphragm from going up and down.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure A of FIG. 1 according to the present invention;

fig. 3 is a top view of the inclined hole plate shown in fig. 1 according to the present invention.

In the figure: the chair comprises a chair for 1 class, a supporting plate 2, an adjusting plate 3, a connecting rod 4, a backrest 5, a clamping groove 6, a shell 7, a sliding rod 8, a sliding ring 9, a spring 10, a push rod 11, a moving plate 12, a transmission rod 13, a sliding groove 14, a sliding block 15, a transverse plate 16, an inclined hole plate 17, a vertical plate 18, a transverse rod 19, a clamping rod 20, a universal wheel 21 and a push plate 22.

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. 1-3, a backrest adjusting mechanism of a class chair comprises a class chair 1, wherein a universal wheel 21 is fixedly connected to the bottom of the class chair 1, the universal wheel 21 is used in cooperation with the class chair 1, the class chair 1 can have a moving function by arranging the universal wheel 21, a user can move the class chair 1 at will, a support plate 2 is fixedly connected to the right side of the class chair 1, an adjusting plate 3 is movably connected to the front side of the support plate 2 through a rotating shaft, a connecting rod 4 is fixedly connected to the top of the adjusting plate 3, a backrest 5 is fixedly connected to the top of the connecting rod 4, a plurality of clamping grooves 6 are formed in the surface of the adjusting plate 3, the plurality of clamping grooves 6 are arranged around the adjusting plate 3 at equal intervals, the clamping grooves 6 can be matched with a clamping rod 20 to fix the adjusting plate 3 to prevent the adjusting plate 3 from rotating abnormally, a shell 7 is fixedly connected to the right side of the bottom of the, a sliding rod 8 is transversely and fixedly connected inside the shell 7, a sliding ring 9 is slidably connected on the surface of the sliding rod 8, a spring 10 is sleeved on the right side of the surface of the sliding rod 8, the left end of the spring 10 is fixedly connected with the right side of the sliding ring 9, the right end of the spring 10 is fixedly connected with the bottom of the right side of the inner wall of the shell 7, a push rod 11 is fixedly connected at the bottom of the sliding ring 9, a push disc 22 is fixedly connected at the bottom of the push rod 11 and penetrates through the shell 7, anti-slip grains are arranged on the surface of the push disc 22, the contact area between the hand of a user and the push rod 11 can be increased by arranging the push disc 22, the user can conveniently push the push rod 11 through the push disc 22, a moving plate 12 is fixedly connected at the top of the sliding ring 9, a transmission rod 13 is fixedly connected at the front, the cross section of the sliding block 15 is trapezoidal, the sliding block 15 is matched with the sliding groove 14 for use, through the arrangement of the sliding block 15 and the sliding groove 14, the lifting stability of the transverse plate 16 can be improved, the transverse plate 16 is prevented from being inclined when lifted, the transverse plate 16 is fixedly connected to the inner side of the sliding block 15, the inclined hole plate 17 matched with the transmission rod 13 for use is fixedly connected to the bottom of the transverse plate 16, the moving plate 12 is located on the rear side of the inclined hole plate 17, the front end of the transmission rod 13 extends to the inside of the inclined hole plate 17, the surface of the transmission rod 13 is slidably connected with the inner wall of the inclined hole plate 17, the vertical plate 18 is fixedly connected to the top of the transverse plate 16, the right side of the vertical plate 18 is fixedly connected with a transverse rod 19, the right end of the transverse rod 19 penetrates through the clamping rod 20 fixedly connected to the outside of the shell 7, the top, The backrest adjusting mechanism of the class chair has the advantages that the inclination angle of the backrest can be adjusted, the backrest is convenient to use for a user, and the universality of the class chair is improved.

When in use, an operator pushes the push rod 11 to move rightwards through the push disc 22, the push rod 11 drives the sliding ring 9 to slide rightwards on the surface of the sliding rod 8, the sliding ring 9 slides rightwards and cooperates with the shell 7 to compress the spring 10, the sliding ring 9 drives the moving plate 12 to move rightwards, the moving plate 12 drives the transmission rod 13 to slide in the inclined hole plate 17, and simultaneously drives the inclined hole plate 17 to descend, the inclined hole plate 17 drives the transverse plate 16 to descend, the transverse plate 16 drives the sliding block 15 to slide and descend in the sliding groove 14, the transverse plate 16 drives the vertical plate 18 to descend, the vertical plate 18 drives the transverse rod 19 to descend, the transverse rod 19 drives the clamping rod 20 to descend and separate from the clamping groove 6, the inclination angle of the backrest 5 is manually adjusted, the backrest 5 drives the adjusting disc 3 to rotate, after the adjustment is finished, the push disc 22 is loosened, the clamping rod 20 is lifted up and extends to the inside of the clamping groove 6 to fix the adjusting disk 3 under the action of the spring 10, so that the purpose of adjusting the inclination angle of the backrest is achieved.

In summary, the following steps: the backrest adjusting mechanism of the class chair solves the problem that most of the existing class chair backrests are fixed by arranging the class chair 1, the supporting plate 2, the adjusting disc 3, the connecting rod 4, the backrest 5, the clamping groove 6, the shell 7, the sliding rod 8, the sliding ring 9, the spring 10, the push rod 11, the moving plate 12, the transmission rod 13, the sliding groove 14, the sliding block 15, the transverse plate 16, the inclined hole plate 17, the vertical plate 18, the transverse rod 19 and the clamping rod 20 in a matched mode.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a back adjustment mechanism of class chair, includes class chair (1), its characterized in that: the right side of the class chair (1) is fixedly connected with a supporting plate (2), the front of the supporting plate (2) is movably connected with an adjusting disc (3) through a rotating shaft, the top of the adjusting disc (3) is fixedly connected with a connecting rod (4), the top of the connecting rod (4) is fixedly connected with a backrest (5), a clamping groove (6) is formed in the surface of the adjusting disc (3), the right side of the bottom of the class chair (1) is fixedly connected with a shell (7), a sliding rod (8) is transversely and fixedly connected inside the shell (7), a sliding ring (9) is slidably connected on the surface of the sliding rod (8), a spring (10) is sleeved on the right side of the surface of the sliding rod (8), the left end of the spring (10) is fixedly connected with the right side of the sliding ring (9), the right end of the spring (10) is fixedly connected with the bottom of the right side of the inner wall of the, the top fixedly connected with movable plate (12) of sliding ring (9), positive top fixedly connected with transfer line (13) of movable plate (12), spout (14) have all been seted up to the both sides of casing (7) inner wall, the inside sliding connection of spout (14) has slider (15), the inboard fixedly connected with diaphragm (16) of slider (15), the bottom fixedly connected with of diaphragm (16) and the inclined hole board (17) of transfer line (13) cooperation use, the top fixedly connected with riser (18) of diaphragm (16), the right side fixedly connected with horizontal pole (19) of riser (18), the right-hand member of horizontal pole (19) runs through to outside fixedly connected with kelly (20) of casing (7), the top of kelly (20) extends to the inside of draw-in groove (6).

2. The backrest adjusting mechanism of a class chair of claim 1, wherein: the bottom fixedly connected with universal wheel (21) of class chair (1), universal wheel (21) and class chair (1) cooperation are used.

3. The backrest adjusting mechanism of a class chair of claim 1, wherein: the quantity of draw-in groove (6) is a plurality of, and a plurality of draw-in groove (6) are the equidistance around setting about adjusting disk (3).

4. The backrest adjusting mechanism of a class chair of claim 1, wherein: the bottom of the push rod (11) penetrates through the shell (7) and is fixedly connected with a push disc (22), and anti-skid grains are arranged on the surface of the push disc (22).

5. The backrest adjusting mechanism of a class chair of claim 1, wherein: the moving plate (12) is located on the rear side of the inclined hole plate (17), the front end of the transmission rod (13) extends into the inclined hole plate (17), and the surface of the transmission rod (13) is connected with the inner wall of the inclined hole plate (17) in a sliding mode.

6. The backrest adjusting mechanism of a class chair of claim 1, wherein: the groove type of the sliding groove (14) is trapezoidal, the cross section of the sliding block (15) is trapezoidal, and the sliding block (15) is matched with the sliding groove (14) for use.