CN215226110U

CN215226110U - Self-gravity self-adjusting chair with stable supporting device

Info

Publication number: CN215226110U
Application number: CN202121697241.8U
Authority: CN
Inventors: 凌小平
Original assignee: Hangzhou Rongyun Stamping Parts Co ltd
Current assignee: Hangzhou Rongyun Stamping Parts Co ltd
Priority date: 2021-07-24
Filing date: 2021-07-24
Publication date: 2021-12-21
Anticipated expiration: 2031-07-24

Abstract

The application discloses a self-gravity adjusting chair with a stable supporting device, which relates to the technical field of chairs and comprises a stool, a lifting mechanism arranged on the stool and a base arranged on the lifting mechanism; be provided with supporting mechanism in the base, supporting mechanism sets up two piece at least supporting shoes and drive assembly in the base including sliding, but supporting shoe protractile base and ground contact, and drive assembly includes driving drive spare and driven driving spare, and driven driving spare includes: the first gear is rotatably arranged in the base; the second gear is rotatably arranged in the base; the first gear and the second gear are meshed with the rack; wherein, the two supporting blocks are respectively provided with convex teeth meshed with the first gear and the second gear. The application has the following effects: the supporting area of base is adjusted to the accessible, strengthens the stability of seat, and then reduces the risk that the seat topples over to improve the security.

Description

Self-gravity self-adjusting chair with stable supporting device

Technical Field

The application relates to the field of chairs, in particular to a self-weight self-adjusting chair with a stable supporting device.

Background

At present, in entertainment places such as bars, KTVs and the like, the front desk passenger receiving chairs mostly use lifting chairs, along with the development of science and technology, lifting chairs capable of realizing height adjustment through the weight of users appear, the supporting centers of the lifting chairs can change along with the height of a chair surface, when the lifting chairs ascend, the supporting centers of the lifting chairs deflect upwards, and the stability of a base is reduced; when the lifting chair descends, the supporting center of the lifting chair deviates downwards, and the stability of the base is stronger.

With respect to the related art in the above, the inventors consider that: above-mentioned lift chair rises the in-process, and the support center upwards squints, leads to seat stability to reduce, thereby arouse the chair to topple over, have certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

In order to strengthen the stability of lift chair, reduce the risk that the chair topples over, improve the security, this application provides a dead weight self-interacting chair with stable strutting arrangement.

The application provides a dead weight self-interacting chair with stable strutting arrangement adopts following technical scheme:

the utility model provides a dead weight is from adjusting chair with stabilize strutting arrangement, includes sits the bench, sets up elevating system on sitting the bench and sets up the base on elevating system, a serial communication port, be provided with supporting mechanism in the base, supporting mechanism sets up two piece at least supporting shoes in the base and is used for the drive including sliding supporting shoe reciprocating motion's drive assembly, the scalable base of supporting shoe and ground contact, drive assembly includes driving drive spare and driven drive spare, driven drive spare includes:

the first gear is rotatably arranged in the base;

the second gear is rotatably arranged in the base; and

the first gear and the second gear are meshed with the rack;

the driving part is used for driving the rack to move, and the two supporting blocks are respectively provided with convex teeth meshed with the first gear and the second gear.

Through adopting above-mentioned technical scheme, when the lift chair height risees, can be through control drive assembly to make the supporting shoe stretch out from the base. First gear and second gear are the effectual power with vertical direction on the rack of driven driving piece and are converted into the power of horizontal direction to order about the supporting shoe protractile base, thereby enlarged the holding area of base, and then strengthened the stability of seat, reduced the risk of empting, improved the security.

Optionally, the active driver comprises:

the third gear is rotatably arranged in the base and meshed with the rack; and

a rotating member; the rotating piece is arranged on the third gear, and the rotating piece penetrates out of the base.

Through adopting above-mentioned technical scheme, rotate the effectual transmission of piece ability in the rack, drive the rack and move along vertical direction, rotate the piece and wear out the base, the effectual human-computer interaction that has realized.

Optionally, the rotating member includes:

the rotating shaft is coaxially and fixedly connected with the third gear, and one end of the rotating shaft penetrates out of the base; and

the handle, handle fixed connection in the one end of base is worn out to the axis of rotation.

By adopting the technical scheme, the handle is rotated by applying force, the third gear rotates along with the handle, the third gear drives the rack to move along the vertical direction, the rack drives the first gear and the second gear to rotate along with the rack, and the first gear and the second gear drive the supporting blocks corresponding to the first gear and the second gear to extend out of the base, so that the supporting area of the base can be adjusted.

Optionally, the rack is provided with:

the first limit stop can be abutted against the first gear;

the second limit stop can be abutted against the second gear; and

and the third limit stop can be abutted against the third gear.

Through adopting above-mentioned technical scheme, the length of the edge vertical direction motion of rack has all effectually been restricted in first limit stop, second limit stop and third limit stop's setting, when having reduced the rack motion, the risk that the dogtooth on corresponding gear and the rack breaks away from.

Optionally, a sliding groove for the rack to reciprocate is formed in the base, and the sliding groove is arranged along the moving direction of the rack.

Through adopting above-mentioned technical scheme, the rack is in the smooth motion of sliding tray length direction along the sliding tray of sliding tray internal stability, has strengthened the stability of rack motion, and then has strengthened the stability of device.

Optionally, the sliding groove is provided with a slot matched with two ends of the rack, and two ends of the rack can extend into the corresponding slots.

Through adopting above-mentioned technical scheme, draw-in groove adaptation in the both ends of rack, can effectual reduction cause the conflict loss of rack both ends and base because of the rack uses frequency is too much.

Optionally, a slideway for allowing the supporting block to slide is arranged in the base, and the slideway is provided with an extension opening of the base for allowing the supporting block to slide out.

Through adopting above-mentioned technical scheme, the supporting shoe can stretch out the base through drive assembly in the slide, easily takes place the skew during the motion of sliding, and the slide sets up the risk that can effectual reduction supporting shoe takes place the skew, has promoted the stability of device when sliding.

Optionally, a non-slip mat is arranged on the surface of the base, which is in contact with the ground.

Through adopting above-mentioned technical scheme, the effectual frictional force that has strengthened base and ground that sets up of slipmat makes the difficult emergence skew of seat, and then has strengthened the stability of chair.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the height of the lifting chair is raised, the supporting block can extend out of the base by controlling the driving component. The first gear and the second gear are used as driven driving pieces to effectively convert vertical force on the rack into horizontal force, so that the supporting block can be driven to extend out of the base, the supporting area of the base is enlarged, the stability of the seat is enhanced, the risk of toppling is reduced, and the safety is improved;

2. the handle is rotated by applying force, the third gear rotates along with the handle, the third gear drives the rack to move along the vertical direction, the rack drives the first gear and the second gear to rotate along with the rack, and the first gear and the second gear drive the supporting blocks corresponding to the first gear and the second gear to extend out of the base, so that the supporting area of the base can be adjusted.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view, partially in section, of an embodiment of the present application;

fig. 3 is a schematic fragmentary section of fig. 2 of the present application.

Reference numerals: 1. a stool; 3. a cylinder; 4. a base; 41. a transverse seat; 42. a vertical seat; 6. a support mechanism; 61. a support block; 62. a drive assembly; 411. a slideway; 421. a sliding groove; 422. a card slot; 611. a long bar; 612. a square block; 621. an active drive; 622. a driven drive member; 6211. a third gear; 6212. a rotating member; 6221. a first gear; 6222. a second gear; 6223. a rack; 71. a first limit stop; 72. a second limit stop; 73. a third limit stop; 601. a rotating shaft; 602. a handle.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to fig. 1 and 2, the embodiment of the application discloses a self-weight self-adjusting chair with a stable supporting device. The adjustable chair comprises a stool 1, a lifting mechanism and a base 4. The lifting mechanism is a cylinder 3, the cylinder 3 is vertically arranged, and is positioned between the stool 1 and the base 4.

Referring to fig. 2 and 3, the base 4 includes a horizontal seat 41 and a vertical seat 42, the vertical seat 42 is integrally disposed on the horizontal seat 41, and a central axis of the vertical seat 42 and a central axis of the horizontal seat 41 are located on the same straight line. The piston rod of the cylinder 3 is fixedly connected with the bottom surface of the stool 1, and the cylinder body of the cylinder 3 is fixedly connected with the top surface of the base 4. The surface of the transverse seat 41 contacting with the ground is fixed with a non-slip mat.

A slideway 411 is arranged in the transverse seat 41 along the horizontal direction, and the slideway 411 is positioned on the inner wall of the transverse seat 41 along the horizontal direction; the vertical seat 42 is internally provided with a sliding groove 421 along the vertical direction, the sliding groove 421 is positioned on the inner wall of the vertical seat 42 along the vertical direction, and the slideway 411 is communicated with the sliding groove 421. The two ends of the sliding groove 421 deviate from each other are provided with a clamping groove 422, and the clamping groove 422 is convex. The lateral seat 41 is symmetrically provided with extension openings along the horizontal direction, which are communicated with the slide way 411.

A supporting mechanism 6 is arranged in the base 4. The supporting mechanism 6 includes a driving assembly 62 and at least two supporting blocks 61, in this embodiment, two supporting blocks 61 are provided, two supporting blocks 61 are slidably connected to two side ends of the transverse seat 41 through slideways 411, and two supporting blocks 61 respectively correspond to one of the extending openings and can extend from the corresponding extending opening. The driving unit 62 can drive the supporting block 61 to extend out of the transverse seat 41, thereby enlarging the supporting area of the transverse seat 41 with the ground and improving the stability of the seat.

The drive assembly 62 comprises a driven drive 622 and a driving drive 621, the driving drive 621 being able to act on the driven drive 622 to extend the support block 61 out of the transverse seat 41.

The driven drive 622 includes a first gear 6221, a second gear 6222, and a rack 6223. The rack 6223 is vertically slidably mounted in the sliding groove 421, the top and the bottom of the sliding groove 421 are both concave slots 422, the top and the bottom of the rack 6223 are both concave, the top and the bottom of the rack 6223 can be clamped into the corresponding concave slots 422 during the movement process, and the limitation on the movement range of the rack 6223 is realized. The first gear 6221 and the second gear 6222 are both rotatably disposed in the vertical seat 42 and located at the bottom of the sliding groove 421. The first gear 6221 and the second gear 6222 are respectively located on both sides of the rack 6223, and both the first gear 6221 and the second gear 6222 are synchronously engaged with the rack 6223.

The supporting block 61 comprises a long rod 611 and a square block 612, the long rod 611 and the square block 612 are integrally arranged, and a convex tooth is fixed on one side of the long rod 611 close to the corresponding gear. The first gear 6221 and the second gear 6222 are engaged with the respective teeth of the bar 611.

The active drive 621 includes a third gear 6211 and a rotating member 6212. The third gear 6211 is rotatably disposed in the vertical seat 42 and located at the top of the sliding slot 421. The rotating member 6212 includes a rotating shaft 601 and a handle 602, one end of the rotating shaft 601 is coaxially and fixedly connected with the third gear 6211, and the other end penetrates through the vertical seat 42, and the handle 602 is fixedly connected with one end of the rotating shaft 601 penetrating through the vertical seat 42.

When the handle 602 is rotated, the third gear 6211 rotates, so as to drive the rack 6223 to move along the length direction of the sliding groove 421, the rack 6223 drives the first gear 6221 and the second gear 6222 to rotate, and the supporting block 61 corresponding to the first gear 6221 and the second gear 6222 moves along the length direction of the sliding groove, so as to adjust the contact area between the transverse seat 41 and the ground.

A first limit stop 71, a second limit stop 72 and a third limit stop 73 are fixed on the rack 6223, the first limit stop 71 is positioned on one side of the rack 6223 close to the first gear 6221, the second limit stop 72 is positioned on one side of the rack 6223 close to the second gear 6222, and the third limit stop 73 is positioned on one side of the rack 6223 close to the third gear 6211. When the rack 6223 moves along the length direction of the sliding slot 421, the corresponding gear can be blocked by the corresponding limit stop.

The implementation principle of self-weight self-adjusting chair with stable supporting device in the embodiment of the application is as follows:

when the seat is lifted, the handle 602 is rotated, the handle 602 drives the third gear to rotate, the rack 6223 moves downwards, meanwhile, the rack 6223 drives the first gear 6221 and the second gear 6222 to rotate, the first gear 6221 and the second gear 6222 are meshed with the convex teeth on the long rod 611 of the corresponding supporting block 61, and the first gear 6221 and the second gear 6222 respectively drive the corresponding supporting block 61 to extend out of the transverse seat 41, so that the supporting area is enlarged, and the stability of the seat is enhanced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a dead weight is from regulation chair with stabilize strutting arrangement, includes sit bench (1), sets up elevating system on sitting bench (1) and sets up base (4) on elevating system, a serial communication port, be provided with supporting mechanism (6) in base (4), supporting mechanism (6) including slide set up in base (4) two piece at least supporting shoe (61) and be used for the drive supporting shoe (61) reciprocating motion's drive assembly (62), supporting shoe (61) protractile base (4) and ground contact, drive assembly (62) are including initiative driving piece (621) and driven driving piece (622), driven driving piece (622) include:

a first gear (6221), the first gear (6221) rotatably disposed within the base (4);

a second gear (6222), said second gear (6222) being rotatably disposed within said base (4); and

a rack (6223), the first and second gears (6221, 6222) each meshing with the rack (6223);

the driving part (621) is used for driving the rack (6223) to move, and the two supporting blocks (61) are respectively provided with convex teeth meshed with the first gear (6221) and the second gear (6222).

2. The self-weight, self-adjusting chair with stabilized support according to claim 1, characterized in that the active drive (621) comprises:

a third gear (6211), wherein the third gear (6211) is rotatably arranged in the base (4), and the third gear (6211) is meshed with the rack (6223); and

a rotating member (6212); the rotating piece (6212) is arranged on the third gear (6211), and the rotating piece (6212) penetrates out of the base (4).

3. The self-adjusting chair with stable support of claim 2, wherein: the rotating member (6212) comprises:

the rotating shaft (601), the rotating shaft (601) is coaxially and fixedly connected with the third gear (6211), and one end of the rotating shaft (601) penetrates out of the base (4); and

the handle (602), the handle (602) is fixedly connected to one end of the rotating shaft (601) which penetrates out of the base (4).

4. Self-weight self-adjusting chair with stable support, according to claim 2, characterized in that on said rack (6223) there is provided:

a first limit stop (71), said first limit stop (71) being abuttable to said first gear (6221);

a second limit stop (72), said second limit stop (72) being abuttable to said second gear (6222); and

a third limit stop (73), said third limit stop (73) being abuttable to said third gear (6211).

5. The self-weight self-adjusting chair with the stable supporting device is characterized in that a sliding groove (421) for the reciprocating motion of the rack (6223) is arranged in the base (4), and the sliding groove (421) is arranged along the motion direction of the rack (6223).

6. The self-weight self-adjusting chair with the stable supporting device is characterized in that clamping grooves (422) matched with the two ends of a rack (6223) are formed in the sliding groove (421), and the two ends of the rack (6223) can extend into the corresponding clamping grooves (422).

7. The self-gravity self-adjusting chair with the stable supporting device is characterized in that a slideway (411) for the sliding movement of the supporting block (61) is arranged in the base (4), and the slideway (411) is provided with an extending port of the base (4) for the sliding out of the supporting block (61).

8. The self-weight self-adjusting chair with stable supporting device according to claim 1 is characterized in that the surface of the base (4) contacting with the ground is provided with a non-slip mat.