CN215776748U

CN215776748U - Office chair leg supporting device

Info

Publication number: CN215776748U
Application number: CN202122438792.9U
Authority: CN
Inventors: 徐立军
Original assignee: Zhejiang Anji Sheng'an Furniture Co ltd
Current assignee: Zhejiang Anji Sheng'an Furniture Co ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-02-11
Anticipated expiration: 2031-10-11

Abstract

The utility model belongs to the technical field of office chairs, and particularly relates to an office chair leg supporting device which comprises a seat box, wherein a supporting plate is arranged at the bottom of the seat box, a lifting cylinder is fixedly installed at the bottom side of the supporting plate, a supporting seat is fixedly installed at one end, far away from the supporting plate, of the lifting cylinder, a third rotating shaft is rotatably installed on the seat box, the front end and the rear end of the third rotating shaft respectively extend to the front side and the rear side of the seat box and are fixedly installed with a same back plate, and a first rotating shaft is rotatably installed on the seat box. The leg supporting device is reasonable in design and simple in operation, the angle of the back plate can be adjusted, the strip-shaped plate and the strip-shaped box can be driven to be synchronously adjusted, legs of users can be effectively supported under the action of the strip-shaped box, meanwhile, the position of the massage plate can be quickly adjusted according to needs, so that massage operation can be provided for the users, the users can conveniently hold and hold the massage plate under the action of the handrails, and the leg supporting device is convenient to use.

Description

Office chair leg supporting device

Technical Field

The utility model relates to the technical field of office chairs, in particular to a leg supporting device of an office chair.

Background

An office chair, english office chair, refers to various chairs that are equipped for convenience of work in daily work and social activities. The existing office chair can not provide comfortable support for the legs of a user, so that the comfort of users in use is influenced, and the adjustment of parts such as a back plate and the like needs to be carried out respectively, so that the operation is complex, therefore, the utility model provides the office chair leg support device to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects of the prior art and provides a leg supporting device of an office chair.

The technical purpose of the utility model is realized by the following technical scheme: a leg supporting device of an office chair comprises a seat box, wherein a supporting plate is arranged at the bottom of the seat box, a supporting mechanism is arranged at the bottom side of the supporting plate, a third rotating shaft is rotatably arranged on the seat box, the front end and the rear end of the third rotating shaft respectively extend to the front side and the rear side of the seat box and are fixedly provided with the same back plate, a first rotating shaft is rotatably arranged on the seat box, the front end and the rear end of the first rotating shaft extend to the front side and the rear side of the seat box and are respectively and fixedly provided with a strip-shaped plate, the same strip-shaped box is fixedly arranged on one side, close to each other, of the two strip-shaped plates, a first gear is fixedly sleeved on the outer side of the first rotating shaft, a motor is fixedly arranged on the inner wall of the bottom of the strip-shaped box, a supporting plate is fixedly arranged on the inner wall of the top of the strip-shaped box, the bottom end of the lead screw extends to the lower side of the supporting plate and is fixedly connected with an output shaft of the motor, the inner wall of the bar-shaped box is provided with a sliding plate in a sliding manner, the sliding plate is in threaded connection with a lead screw, one side of the bar-shaped box is provided with a bar-shaped slotted hole, a connecting plate is arranged in the bar-shaped slotted hole in a sliding manner, the connecting plate is fixedly connected with the sliding plate, one side of the connecting plate, far away from the sliding plate, extends to the outside of the bar-shaped box and is fixedly provided with a massage plate, the bottom of the bar-shaped box is fixedly provided with a foot rest, the inner walls of the front side and the rear side of the seat box are rotatably provided with a second rotating shaft, the front end and the rear end of the second rotating shaft extend to the front side and the rear side of the seat box and are respectively and fixedly provided with a first rotating rod, the outer side of the second rotating shaft is fixedly sleeved with a second gear, a third gear is rotatably arranged in the seat box and is meshed with the first gear and the second gear, the front side and the rear side of the back plate are both rotatably provided with second rotating rods, and are respectively and rotatably connected with corresponding rotating rods, the handrail is arranged on the second rotating rod, the first bevel gear is fixedly sleeved on the outer side of the third rotating shaft, the same vertical plate is fixedly mounted on the inner wall of the top of the seat box and the inner wall of the bottom of the seat box, the fourth rotating shaft is rotatably mounted on the vertical plate, the second bevel gear is fixedly sleeved at one end, close to the first bevel gear, of the fourth rotating shaft, the first bevel gear is meshed with the second bevel gear, and the worm wheel is fixedly sleeved at one end, far away from the second bevel gear, of the fourth rotating shaft.

The utility model is further provided with: the seat box is rotatably provided with a worm, the worm is meshed with the worm wheel, and the front end of the worm extends to the front side of the seat box and is fixedly sleeved with a hand wheel.

Through adopting above-mentioned technical scheme, be convenient for rotate the worm through the hand wheel.

The utility model is further provided with: the installation slotted hole has been seted up on two of dwang, rotate on the both sides inner wall around the installation slotted hole and install two rotational pins, the outside of two rotational pins is all fixed the cover and is equipped with reel one and reel two, and two are gone up all fixed duplex winding and are equipped with the stay cord, the one end and the handrail fixed connection of reel two are kept away from to the stay cord, and two reels are fixed on one and are equipped with same elasticity rope in the duplex winding.

Through adopting above-mentioned technical scheme, can make the handrail keep better stability under the effect of stay cord and elastic cord.

The utility model is further provided with: a plurality of support columns are fixedly mounted on the front side and the rear side of the seat box respectively, and the support columns are located below the corresponding mounting slotted holes respectively.

Through adopting above-mentioned technical scheme, can deflect the handrail jack-up when parallel with the seat case at the backplate through the support column.

The utility model is further provided with: a plurality of jacks are formed in the bottom side of the handrail and are respectively matched with the corresponding support columns.

Through adopting above-mentioned technical scheme, can fix the handrail through jack and support column to can increase the stability of handrail.

The utility model is further provided with: the opposite side of bar case is provided with the access door, and is provided with the handle on the access door.

Through adopting above-mentioned technical scheme, be convenient for overhaul or change the motor through the access door.

The utility model is further provided with: the supporting mechanism comprises a mounting seat, support legs and a lifting cylinder, the lifting cylinder is rotatably mounted on the mounting seat, one end of the lifting cylinder, far away from the mounting seat, is fixedly connected with the supporting plate, the support legs are fixedly connected with the mounting seat, and the ends, far away from the mounting seat, of the support legs are rotatably mounted with the moving wheels.

Through adopting above-mentioned technical scheme, can carry out stable support to the seat case under supporting mechanism's effect, can rotate and remove the device as required simultaneously.

The utility model has the beneficial effects that: through the hand wheel, the worm wheel, the pivot four, bevel gear two, bevel gear one, under the cooperation between the pivot three, can adjust the angle of backplate, simultaneously at dwang two, dwang one, gear three, gear two, under the interact between the first class component of pivot, can be to the bar board, bar case and foot hold in the palm and carry out synchronous control, thereby can make the bar case carry out effectual bearing to user of service's shank, through the motor, the lead screw, the sliding plate, cooperation between the connecting plate, can be with massage board quick adjustment to required position, can massage user of service's shank under the effect of massage board, and can adjust when certain angle at backplate and bar case, be convenient for operating personnel through the handrail and hold up, the operation is thus simple, be convenient for overhaul the motor or change through the access door, it is comparatively convenient to use.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic perspective view of a leg support device of an office chair according to the present invention;

FIG. 2 is a schematic view of a leg support device of an office chair according to the present invention in partial cross-section;

FIG. 3 is a schematic structural view of part A of a leg supporting device of an office chair according to the present invention;

FIG. 4 is a schematic structural view of a portion B of the leg supporting device of an office chair according to the present invention;

FIG. 5 is a schematic structural view of a portion C of a leg supporting device of an office chair according to the present invention;

FIG. 6 is a schematic structural view of a portion D of the leg supporting device of an office chair according to the present invention;

fig. 7 is a schematic perspective view of the armrest according to the present invention.

In the figure: 1. a seat box; 2. a back plate; 3. a first rotating shaft; 4. a strip plate; 5. a strip-shaped box; 6. a first gear; 7. a motor; 8. a screw rod; 9. a sliding plate; 10. a slotted hole; 11. a massage plate; 12. a foot support; 13. a second rotating shaft; 14. rotating the first rod; 15. a second gear; 16. a third gear; 17. rotating the second rod; 18. mounting a slotted hole; 19. a first reel; 20. a second reel; 21. a handrail; 22. pulling a rope; 23. an elastic cord; 24. a rotating shaft III; 25. a first bevel gear; 26. a worm; 27. a hand wheel; 28. a rotating shaft IV; 29. a worm gear; 30. and a second bevel gear.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

Referring to fig. 1-7, an office chair leg supporting device comprises a seat box 1, a supporting plate is arranged at the bottom of the seat box 1, a supporting mechanism is arranged at the bottom side of the supporting plate, a rotating shaft three 24 is rotatably arranged on the seat box 1, the front end and the rear end of the rotating shaft three 24 respectively extend to the front side and the rear side of the seat box 1 and are fixedly provided with a same back plate 2, a rotating shaft one 3 is rotatably arranged on the seat box 1, the front end and the rear end of the rotating shaft one 3 extend to the front side and the rear side of the seat box 1 and are respectively and fixedly provided with a strip-shaped plate 4, one side, close to each other, of the two strip-shaped plates 4 is fixedly provided with a same strip-shaped box 5, the leg of a user can be supported by the strip-shaped box 5, a gear one 6 is fixedly sleeved at the outer side of the rotating shaft one 3, a motor 7 is fixedly arranged on the inner wall at the bottom of the strip-shaped box 5, a supporting plate is fixedly arranged on the inner wall at the top of the strip-shaped box 5, and the top end of a screw 8 is rotatably arranged on the inner wall of the top of the strip-shaped box 5, the bottom end of a screw rod 8 extends to the lower part of a supporting plate and is fixedly connected with an output shaft of a motor 7, a sliding plate 9 is slidably mounted on the inner wall of a strip-shaped box 5, the sliding plate 9 is in threaded connection with the screw rod 8, one side of the strip-shaped box 5 is provided with a strip-shaped groove hole 10, a connecting plate is slidably mounted in the strip-shaped groove hole 10 and is fixedly connected with the sliding plate 9, one side of the connecting plate, far away from the sliding plate 9, extends to the outside of the strip-shaped box 5 and is fixedly provided with a massage plate 11, the leg can be massaged through the massage plate 11, a foot support 12 is fixedly mounted at the bottom of the strip-shaped box 5, the inner walls of the front side and the rear side of a seat box 1 are rotatably mounted with a same rotating shaft two 13, the front end and the rear end of the rotating shaft two 13 extend to the front side and the rear side of the seat box 1 and are respectively and fixedly provided with a rotating rod one 14, a gear two 15 is fixedly sleeved on the outer side of the rotating shaft 13, and a gear three 16 is rotatably mounted in the seat box 1, a third gear 16 is meshed with a first gear 6 and a second gear 15, a second rotating rod 17 is rotatably mounted on the front side and the rear side of the back plate 2, the two second rotating rods 17 are respectively rotatably connected with a corresponding first rotating rod 14, a handrail 21 is arranged on the second rotating rod 17, a first bevel gear 25 is fixedly sleeved on the outer side of a third rotating shaft 24, the same vertical plate is fixedly mounted on the inner wall of the top of the seat box 1 and the inner wall of the bottom of the seat box 1, a fourth rotating shaft 28 is rotatably mounted on the vertical plate, a second bevel gear 30 is fixedly sleeved at one end, close to the first bevel gear 25, of the fourth rotating shaft 28, the first bevel gear 25 is meshed with the second bevel gear 30, and a worm gear 29 is fixedly sleeved at one end, far away from the second bevel gear 30, of the fourth rotating shaft 28.

Specifically, a worm 26 is rotatably mounted on the seat box 1, the worm 26 is meshed with a worm wheel 29, the front end of the worm 26 extends to the front side of the seat box 1 and is fixedly sleeved with a hand wheel 27, and the worm 26 is convenient to rotate through the hand wheel 27.

Specifically, the installation slotted hole 18 has been seted up on the dwang two 17, rotate on the both sides inner wall around the installation slotted hole 18 and install two rotational pins, the outside of two rotational pins is all fixed the cover and is equipped with reel 19 and reel two 20, all fixed and be equipped with stay cord 22 around on two reels 20, the one end and the handrail 21 fixed connection of two 20 reels of stay cord 22 keeping away from, and fixed and be equipped with same elasticity rope 23 around on two reels 19, can make handrail 21 keep better stability under the effect of stay cord 22 and elasticity rope 23.

Specifically, a plurality of support columns are fixedly mounted on the front side and the rear side of the seat box 1 respectively, and the support columns are located below the corresponding mounting groove holes 18 respectively, so that the armrest 21 can be jacked up when the back plate 2 deflects to be parallel to the seat box 1.

Specifically, a plurality of jacks have been seted up to handrail 21's bottom side, and a plurality of jacks respectively with corresponding support column looks adaptation, can fix handrail 21 through jack and support column to can increase handrail 21's stability.

Specifically, the opposite side of bar case 5 is provided with the access door, and is provided with the handle on the access door, is convenient for overhaul or change motor 7 through the access door.

Specifically, supporting mechanism includes mount pad, stabilizer blade and lift cylinder, and the lift cylinder rotates and installs on the mount pad, and the lift cylinder keeps away from the one end and the layer board fixed connection of mount pad, a plurality of stabilizer blades all with mount pad fixed connection, and the one end that the mount pad was kept away from to a plurality of stabilizer blades all rotates and installs the removal wheel, can carry out stable support to the seat case under supporting mechanism's effect, can rotate and remove the device as required simultaneously.

The working principle is as follows: when the chair is used, firstly, the power supply is switched on, a user sits on the seat box 1, leans against the back plate 2 at the back, rotates the worm 26 through the hand wheel 27, the worm 26 drives the rotating shaft four 28 to rotate through the worm wheel 29, so that the bevel gear two 30 drives the rotating shaft three 24 through the bevel gear one 25 to clockwise adjust the angle of the back plate 2, the back plate 2 drives the rotating shaft one 14 through the rotating shaft two 17 to drive the rotating shaft two 13 to drive the gear two 15 to rotate, the gear two 15 drives the rotating shaft one 3 to clockwise rotate through the gear three 16 and the gear one 6, so that the two strip-shaped plates 4 can be driven to enable the strip-shaped box 5 to deflect clockwise based on the rotating shaft one 3, meanwhile, the foot rest 12 keeps synchronous motion, after the strip-shaped box 5 is adjusted to a proper angle, the motor 7 is started, the motor 7 drives the sliding plate 9 to slide along the inner wall of the strip-shaped box 5 through the screw rod 8, so that the connecting plate drives the massage plate 11 to be adjusted to a required height along one side of the strip-shaped box 5, can carry out effectual bearing to user's shank under bar case 5's effect, can massage user's shank simultaneously under massage plate 11's effect, in 2 deflections of backplate, dwang two 17 can move to 1 direction of seat case, highly be less than the high time of support column at dwang two 17, the top of a plurality of support columns inserts in the jack that corresponds, and then can highly fix handrail 21, when needs are to 2 anticlockwise regulations of backplate, bar board 4 drives bar case 5 and resets, dwang two 17 resets along with backplate 2 simultaneously, at reel one, reel two, can make handrail 21's bottom side butt on dwang two 17 under the mutually supporting between stay cord and the elasticity rope, the completion is accomodate.

The leg supporting device of the office chair provided by the utility model is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are set forth only to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The office chair leg supporting device comprises a seat box (1) and is characterized in that a supporting plate is arranged at the bottom of the seat box (1), a supporting mechanism is arranged at the bottom side of the supporting plate, a rotating shaft III (24) is rotatably installed on the seat box (1), the front end and the rear end of the rotating shaft III (24) respectively extend to the front side and the rear side of the seat box (1) and are fixedly provided with a same back plate (2), a rotating shaft I (3) is rotatably installed on the seat box (1), the front end and the rear end of the rotating shaft I (3) extend to the front side and the rear side of the seat box (1) and are respectively fixedly provided with a strip-shaped plate (4), one side, close to each other, of the two strip-shaped plates (4) is fixedly provided with a same strip-shaped box (5), a gear I (6) is fixedly sleeved on the outer side of the rotating shaft I (3), and a motor (7) is fixedly installed on the inner wall of the bottom of the strip-shaped box (5), a support plate is fixedly installed on the inner wall of the bar-shaped box (5), the top end of a screw rod (8) is rotatably installed on the inner wall of the top of the bar-shaped box (5), the bottom end of the screw rod (8) extends to the lower portion of the support plate and is fixedly connected with an output shaft of a motor (7), a sliding plate (9) is slidably installed on the inner wall of the bar-shaped box (5), the sliding plate (9) is in threaded connection with the screw rod (8), a bar-shaped slotted hole (10) is formed in one side of the bar-shaped box (5), a connecting plate is slidably installed in the bar-shaped slotted hole (10), the connecting plate is fixedly connected with the sliding plate (9), one side of the connecting plate, away from the sliding plate (9), extends to the outside of the bar-shaped box (5) and is fixedly provided with a massage plate (11), a foot support (12) is fixedly installed at the bottom of the bar-shaped box (5), and a same rotating shaft II (13) is rotatably installed on the inner walls of the front side and the back side of the seat box (1), the front end and the rear end of the second rotating shaft (13) extend to the front side and the rear side of the seat box (1) and are respectively and fixedly provided with a first rotating rod (14), the outer side of the second rotating shaft (13) is fixedly sleeved with a second gear (15), a third gear (16) is rotatably installed in the seat box (1), the third gear (16) is meshed with the first gear (6) and the second gear (15), the front side and the rear side of the back plate (2) are respectively and rotatably provided with a second rotating rod (17), the two second rotating rods (17) are respectively and rotatably connected with the corresponding first rotating rods (14), handrails (21) are arranged on the second rotating rods (17), a first bevel gear (25) is fixedly sleeved on the outer side of the third rotating shaft (24), the inner wall of the top of the seat box (1) and the inner wall of the bottom are fixedly provided with the same vertical plate, a fourth rotating shaft (28) is rotatably installed on the vertical plate, and a second bevel gear (30) is fixedly sleeved at one end of the fourth rotating shaft (28) close to the first bevel gear (25), the first bevel gear (25) is meshed with the second bevel gear (30), and a worm wheel (29) is fixedly sleeved at one end, far away from the second bevel gear (30), of the fourth rotating shaft (28).

2. An office chair leg support as claimed in claim 1, wherein: rotate on seat case (1) and install worm (26), worm (26) and worm wheel (29) mesh mutually, the front end of worm (26) extends to the front side of seat case (1) and fixed cover is equipped with hand wheel (27).

3. An office chair leg support as claimed in claim 1, wherein: seted up installation slotted hole (18) on dwang two (17), rotate on the both sides inner wall around installation slotted hole (18) and install two rotational pins, the outside of two rotational pins is all fixed the cover and is equipped with reel (19) and reel two (20), all fixes and is equipped with stay cord (22) on two reels (20), the one end and handrail (21) fixed connection of reel two (20) are kept away from in stay cord (22), and two reels are fixed on (19) and are equipped with same elasticity rope (23) around.

4. An office chair leg support as claimed in claim 3, wherein: a plurality of supporting columns are fixedly mounted on the front side and the rear side of the seat box (1), and are respectively located below the corresponding mounting slotted holes (18).

5. An office chair leg support as claimed in claim 4, wherein: a plurality of jacks are formed in the bottom side of the handrail (21), and the jacks are respectively matched with the corresponding support columns.

6. An office chair leg support as claimed in claim 1, wherein: the opposite side of bar case (5) is provided with the access door, and is provided with the handle on the access door.

7. An office chair leg support as claimed in claim 1, wherein: the supporting mechanism comprises a mounting seat, support legs and a lifting cylinder, the lifting cylinder is rotatably mounted on the mounting seat, one end of the lifting cylinder, far away from the mounting seat, is fixedly connected with the supporting plate, the support legs are fixedly connected with the mounting seat, and the ends, far away from the mounting seat, of the support legs are rotatably mounted with the moving wheels.