CN210169488U

CN210169488U - Height adjusting mechanism of sofa

Info

Publication number: CN210169488U
Application number: CN201921012053.XU
Authority: CN
Inventors: Mujian Wang; 王睦坚
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-03-24
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses a height adjusting mechanism of sofa, including the sofa body, the left side and the equal fixedly connected with handrail in right side of sofa body, the transmission groove has been seted up at the back of sofa body. The utility model discloses a it is rotatory to rotate the runner and drive the transfer line, it is rotatory that the transfer line drives the second helical gear through first helical gear, the second helical gear drives the rotatory swivel nut that makes of positive and negative tooth lead screw and removes to both sides, the swivel nut passes through traction lever pulling crank and removes to both sides simultaneously, crank pulling connecting block downstream, thereby reach the effect of adjustment sofa height, current sofa in the use has been solved, can't adjust the height of sofa, the people that is different because of the height is highly different to the demand of sofa, fixed height's sofa can reduce user's travelling comfort, can't satisfy the crowd of different heights, the problem that the flexibility that leads to the sofa reduces, the height control mechanism of this sofa, possess advantages such as adjustable sofa height.

Description

Height adjusting mechanism of sofa

Technical Field

The utility model relates to the technical field of furniture, specifically a height adjusting mechanism of sofa.

Background

The sofa is a multi-seat chair with soft cushion, a backrest chair with spring or thick foam plastic and the like is provided with armrests at two sides, and is a kind of soft furniture.

Current sofa is in the use, can't adjust the height of sofa, and the people that is because of the height difference is highly different to the demand of sofa, and fixed height's sofa can reduce user's travelling comfort, can't satisfy the crowd of different heights, leads to the flexibility of sofa to reduce.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a height adjusting mechanism of sofa possesses advantages such as adjustable sofa height, has solved current sofa in the use, can't highly adjust sofa, because of the people that the height is different highly different to the demand of sofa, fixed height's sofa can reduce user's travelling comfort, can't satisfy the crowd of different heights, leads to the problem that the flexibility of sofa reduces.

(II) technical scheme

In order to achieve the above object, the present invention provides the following technical solutions: a height adjusting mechanism of a sofa comprises a sofa body, wherein handrails are fixedly connected to the left side and the right side of the sofa body, a transmission groove is formed in the back surface of the sofa body, a rotating wheel is movably connected inside the transmission groove, a transmission rod is fixedly connected to the front surface of the rotating wheel, a cushion positioned on the inner side of the handrail is movably connected to the top of the sofa body, a movable groove is formed in the top of the sofa body, the front end of the transmission rod penetrates through the sofa body and extends to the bottom of the cushion, a first helical gear positioned inside the movable groove is fixedly connected to the front end of the transmission rod, a positive-negative-tooth lead screw is movably connected to the inner side of the handrail through a bearing, a second helical gear meshed with the first helical gear is fixedly connected to the surface of the positive-negative-tooth lead screw, and screw sleeves positioned inside the, the utility model discloses a sofa, including sofa body, connecting plate, crank, screw sleeve, connecting plate, the bottom fixedly connected with connecting plate of cushion, the left side and the equal fixedly connected with connecting block in right side of connecting plate bottom, the left side and the equal swing joint in right side at sofa body top have the fixed block, there is the crank inboard of fixed block through round pin axle swing joint, the one end that the fixed block was kept away from to the crank is through round pin axle swing joint with the inside of connecting block, the positive fixedly connected with traction lever of screw sleeve, the front end of traction lever.

Preferably, the bottom fixedly connected with T type piece of fixed block, the T type groove that is located the activity groove front side is seted up at the top of sofa body, T type piece and T type groove sliding connection.

Preferably, the bottom of the threaded sleeve is fixedly connected with a sliding block, the top of the sofa body is provided with a sliding groove communicated with the movable groove, and the sliding block is connected with the sliding groove in a sliding mode.

Preferably, the inside fixedly connected with lagging of handrail, the left side and the equal fixedly connected with slide bar in right side of cushion, the slide bar is kept away from the one end of cushion and is extended to the inside of lagging and with lagging swing joint.

Preferably, four corners of the top of the sofa body are fixedly connected with compression springs, and the top ends of the compression springs are fixedly connected with the bottom of the cushion.

Preferably, the front side fixedly connected with decorative board of cushion bottom, the extension groove has been seted up to the front end at sofa body top, the bottom of decorative board extend to the extension inslot portion and with extension groove sliding connection.

(III) advantageous effects

Compared with the prior art, the utility model provides a height adjusting mechanism of sofa possesses following beneficial effect:

1. this high adjustment mechanism of sofa, it is rotatory to drive the transfer line through rotating the runner, the transfer line drives the rotation of second helical gear through first helical gear, the second helical gear drives the rotatory swivel nut that makes of positive and negative tooth lead screw and removes to both sides, the swivel nut passes through traction lever pulling crank and removes to both sides simultaneously, crank pulling connecting block downstream, thereby reach the effect of adjustment sofa height, current sofa in the use has been solved, can't adjust the height of sofa, the people to the demand height difference of sofa because of the height difference, fixed height's sofa can reduce user's travelling comfort, can't satisfy the crowd of different heights, the problem that the flexibility that leads to the sofa reduces, this sofa's high adjustment mechanism, possess advantages such as adjustable sofa height.

2. The height adjusting mechanism of the sofa can play a limiting role on the fixed block by arranging the T-shaped block and the T-shaped groove, prevent the fixed block from shaking when moving, improve the stability of the fixed block when moving, play a fixing role on the screw sleeve by arranging the sliding block and the sliding groove, prevent the screw sleeve from rotating along with the positive and negative lead screws, thereby leading the situation that the traction bar is separated from the crank to happen, play a limiting role on the cushion by arranging the sliding bar and the sleeve plate, prevent the cushion from inclining when moving, improve the comfort level of a user, play a supporting role on the cushion by arranging the pressure spring, share the gravity borne by the crank, prevent the crank from being broken due to excessive stress, improve the aesthetic degree of the sofa body by arranging the decorative plate and the extension groove, play a protecting role on the user, prevent the height from being adjusted, the cushion or the pressure spring hurts the user.

Drawings

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

FIG. 2 is a sectional view of the front view structure of the present invention;

FIG. 3 is a sectional view of the front view structure of the present invention;

FIG. 4 is a right side sectional view of the present invention;

FIG. 5 is a right view structural diagram of the present invention;

FIG. 6 is an enlarged view taken at A in FIG. 2;

fig. 7 is an enlarged view of fig. 4 at B.

In the figure: the sofa comprises a sofa body 1, armrests 2, a transmission groove 3, a rotating wheel 4, a transmission rod 5, a cushion 6, a movable groove 7, a first bevel gear 8, a lead screw with positive and negative teeth 9, a second bevel gear 10, a threaded sleeve 11, a connecting plate 12, a connecting block 13, a fixed block 14, a crank 15, a traction rod 16, a T-shaped block 17, a T-shaped groove 18, a sliding block 19, a sliding groove 20, a sleeve plate 21, a sliding rod 22, a pressure spring 23, a decorative plate 24 and an extension groove 25.

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. 1-7, a height adjusting mechanism of a sofa comprises a sofa body 1, a handrail 2 is fixedly connected to both left and right sides of the sofa body 1, a transmission groove 3 is formed in the back of the sofa body 1, a rotating wheel 4 is movably connected to the inside of the transmission groove 3, a transmission rod 5 is fixedly connected to the front of the rotating wheel 4, a seat cushion 6 located inside the handrail 2 is movably connected to the top of the sofa body 1, a sleeve plate 21 is fixedly connected to the inside of the handrail 2, a sliding rod 22 is fixedly connected to both left and right sides of the seat cushion 6, one end of the sliding rod 22 far away from the seat cushion 6 extends into the sleeve plate 21 and is movably connected with the sleeve plate 21, the sliding rod 22 and the sleeve plate 21 are arranged to limit the seat cushion 6, the seat cushion 6 is prevented from inclining when moving, comfort of a user can be improved, compression springs 23 are fixedly connected to four corners, the top end of the pressure spring 23 is fixedly connected with the bottom of the cushion 6, the pressure spring 23 is arranged to support the cushion 6, the gravity borne by the crank 15 can be shared, the crank 15 is prevented from being broken due to excessive stress, the front side of the bottom of the cushion 6 is fixedly connected with the decorative plate 24, the front end of the top of the sofa body 1 is provided with the extending groove 25, the bottom of the decorative plate 24 extends into the extending groove 25 and is in sliding connection with the extending groove 25, the attractiveness of the sofa body 1 can be improved by arranging the decorative plate 24 and the extending groove 25, meanwhile, the protective effect can be achieved for a user, the user is prevented from being injured by the cushion 6 or the pressure spring 23 when the height is adjusted, the top of the sofa body 1 is provided with the movable groove 7, the front end of the transmission rod 5 penetrates through the body 1 and extends to the bottom of the cushion 6, the front end of the transmission rod 5 is fixedly connected with, the inner side of the armrest 2 is movably connected with a positive and negative tooth lead screw 9 through a bearing, the surface of the positive and negative tooth lead screw 9 is fixedly connected with a second bevel gear 10 meshed with the first bevel gear 8, both sides of the surface of the positive and negative tooth lead screw 9 are in threaded connection with a threaded sleeve 11 positioned in the movable groove 7, the bottom of the threaded sleeve 11 is fixedly connected with a sliding block 19, the top of the sofa body 1 is provided with a sliding groove 20 communicated with the movable groove 7, the sliding block 19 is in sliding connection with the sliding groove 20, the threaded sleeve 11 can be fixed by arranging the sliding block 19 and the sliding groove 20, the threaded sleeve 11 is prevented from rotating along with the positive and negative tooth lead screw 9, so that a traction rod 16 is separated from a crank 15, the bottom of the cushion 6 is fixedly connected with a connecting plate 12, the left side and the right side of the bottom of the connecting plate 12 are both, the bottom fixedly connected with T type piece 17 of fixed block 14, T type groove 18 that is located movable groove 7 front side is seted up at the top of sofa body 1, T type piece 17 and T type groove 18 sliding connection, through setting up T type piece 17 and T type groove 18, can play spacing effect to fixed block 14, prevent that fixed block 14 from rocking when removing, stability when improving fixed block 14 and removing, there is crank 15 fixed through round pin axle swing joint in the inboard of fixed block 14, crank 15 keeps away from the one end of fixed block 14 and the inside of connecting block 13 through round pin axle swing joint, the front fixedly connected with traction lever 16 of swivel nut 11, the front end of traction lever 16 extends to the inside of crank 15 and with crank 15 sliding connection.

When the sofa is used, a user sits on the top of the cushion 6, places a hand on the top of the armrest 2 for use, and needs to adjust the height, the rotating wheel 4 is rotated, the rotating wheel 4 drives the transmission rod 5 to rotate, the transmission rod 5 drives the second bevel gear 10 to rotate through the first bevel gear 8, the second bevel gear 10 drives the positive and negative tooth lead screw 9 to rotate so as to enable the threaded sleeve 11 to move towards two sides, meanwhile, the threaded sleeve 11 pulls the crank 15 to move towards two sides through the traction rod 16, the crank 15 pulls the connecting block 13 to move downwards through the guide of the sliding rod 22 and the sleeve plate 21, the effect of adjusting the height of the sofa can be achieved, when the cushion 6 moves downwards, the pressure spring 23 is extruded, the pressure spring 23 plays a buffering role on the cushion 6, the comfort level of the sofa body 1 can be improved, and simultaneously, when the cushion 6 moves downwards, the decorative plate 24, the user is prevented from being pinched by the seat cushion 6 or the pressure spring 23.

In conclusion, this sofa's height adjustment mechanism, it is rotatory to drive transfer line 5 through rotating runner 4, transfer line 5 drives second helical gear 10 through first helical gear 8 and rotates, second helical gear 10 drives positive and negative tooth lead screw 9 and rotates and make swivel nut 11 move to both sides, swivel nut 11 passes through 16 pulling cranks 15 of traction lever and moves to both sides simultaneously, crank 15 pulling connecting block 13 moves downwards, thereby reach the effect of adjustment sofa height, solved current sofa in the use, can't adjust the height of sofa, because of the different people of height highly is different to the demand height of sofa, fixed height's sofa can reduce user's travelling comfort, can't satisfy the crowd of different heights, the problem that leads to the flexibility of sofa to reduce, this sofa's height adjustment mechanism, possess advantages such as adjustable sofa height.

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 height adjustment mechanism of sofa, includes sofa body (1), its characterized in that: the sofa is characterized in that handrails (2) are fixedly connected to the left side and the right side of the sofa body (1), a transmission groove (3) is formed in the back face of the sofa body (1), a rotating wheel (4) is movably connected to the inside of the transmission groove (3), a transmission rod (5) is fixedly connected to the front face of the rotating wheel (4), a cushion (6) located on the inner side of the handrail (2) is movably connected to the top of the sofa body (1), a movable groove (7) is formed in the top of the sofa body (1), the front end of the transmission rod (5) penetrates through the sofa body (1) and extends to the bottom of the cushion (6), a first helical gear (8) located inside the movable groove (7) is fixedly connected to the front end of the transmission rod (5), a positive and negative helical screw rod (9) is movably connected to the inner side of the handrail (2) through a bearing, and a second helical gear (10) meshed with the first helical gear (, the utility model discloses a sofa, including sofa body (1), positive and negative tooth lead screw (9), the equal threaded connection in both sides on surface has swivel nut (11) that is located movable groove (7), the bottom fixedly connected with connecting plate (12) of cushion (6), the left side and the equal fixedly connected with connecting block (13) in right side of connecting plate (12) bottom, the left side and the equal swing joint in right side at sofa body (1) top have fixed block (14), there are crank (15) inboard of fixed block (14) through round pin axle swing joint, the one end that fixed block (14) were kept away from in crank (15) is through round pin axle swing joint with the inside of connecting block (13), the positive fixedly connected with traction lever (16) of swivel nut (11), the front end of traction lever (16) extend to the inside of crank (15) and with crank (15).

2. The height adjustment mechanism for a sofa of claim 1, wherein: the bottom fixedly connected with T type piece (17) of fixed block (14), T type groove (18) that are located activity groove (7) front side are seted up at the top of sofa body (1), T type piece (17) and T type groove (18) sliding connection.

3. The height adjustment mechanism for a sofa of claim 1, wherein: the bottom of the threaded sleeve (11) is fixedly connected with a sliding block (19), the top of the sofa body (1) is provided with a sliding groove (20) communicated with the movable groove (7), and the sliding block (19) is in sliding connection with the sliding groove (20).

4. The height adjustment mechanism for a sofa of claim 1, wherein: the inside fixedly connected with lagging (21) of handrail (2), the equal fixedly connected with slide bar (22) in left side and right side of cushion (6), the one end that cushion (6) were kept away from in slide bar (22) extends to the inside of lagging (21) and with lagging (21) swing joint.

5. The height adjustment mechanism for a sofa of claim 1, wherein: the sofa is characterized in that four corners of the top of the sofa body (1) are fixedly connected with compression springs (23), and the top ends of the compression springs (23) are fixedly connected with the bottom of the cushion (6).

6. The height adjustment mechanism for a sofa of claim 1, wherein: cushion (6) front side fixedly connected with decorative board (24) of bottom, extension groove (25) have been seted up to the front end at sofa body (1) top, the bottom of decorative board (24) extend to inside and with extension groove (25) sliding connection of extension groove (25).