CN213720936U

CN213720936U - Swivel chair base gyro wheel extending structure

Info

Publication number: CN213720936U
Application number: CN202023165117.5U
Authority: CN
Inventors: 金苗锋; 顾王强; 杨伟泳; 谢昱实; 毛路敏
Original assignee: Anji Yueli Handling Equipment Co ltd
Current assignee: Anji Yueli Handling Equipment Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-07-20
Anticipated expiration: 2030-12-24

Abstract

The utility model provides a swivel chair base gyro wheel extending structure, including telescopic link and removal wheel, the telescopic link includes dead lever and carriage release lever, carriage release lever one end is connected with the dead lever, the carriage release lever other end is equipped with the connecting hole, the removal wheel includes universal revolution mechanic and gyro wheel, universal revolution mechanic includes bearing, connecting axle and sealed dish, connecting axle one end is connected with the bearing, the other end of connecting axle is connected with the connecting hole, the sealed dish is connected on the bearing, sealed dish both sides are equipped with the wheel carrier, the wheel carrier is used for fixing the removal wheel, be equipped with brake structure on the wheel carrier, when the carriage release lever withdraws, brake structure blocks the removal wheel, and the removal wheel can't roll this moment; when the moving rod extends out, the roller can rotate freely to move the position of the chair, when the moving rod retracts, the moving wheel can be clamped, and the chair cannot move freely at the moment.

Description

Swivel chair base gyro wheel extending structure

Technical Field

The utility model relates to a gyro wheel technical field especially relates to a swivel chair base gyro wheel extending structure.

Background

The chairs are essential for people to study and work at ordinary times, and in order to facilitate the movement of the whole chair and the convenience of movement of a user after sitting, more and more rotary chairs are designed to be in a rotary wheel shape at the bottom, but sometimes the attention of people can be influenced by the random rotation of the chairs.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model provides a swivel chair base gyro wheel extending structure, it has solved the problem that the chair rotates at will sometimes and can influence people's attention that exists among the prior art.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a swivel chair base gyro wheel extending structure, includes the telescopic link and removes the wheel, the telescopic link includes dead lever and carriage release lever, carriage release lever one end is connected with the dead lever, the carriage release lever other end is equipped with the connecting hole, it includes universal revolution mechanic and gyro wheel to remove the wheel, universal revolution mechanic includes bearing, connecting axle and sealed dish, connecting axle one end is connected with the bearing, the other end and the connecting hole of connecting axle are connected, sealed dish is connected on the bearing, sealed dish both sides are equipped with the wheel carrier, the wheel carrier is used for the fixed wheel that removes, be equipped with the brake structure on the wheel carrier, when the carriage release lever is withdrawed, the brake structure will remove the wheel card and die, removes the wheel and can't roll this moment.

Through adopting above-mentioned technical scheme, when the carriage release lever stretches out, the gyro wheel can rotate the position that removes the chair at will, when the carriage release lever withdraws, alright block the gyro wheel, the chair will unable random removal this moment.

The utility model discloses further set up to: the brake structure includes connecting rod and brake lever, the brake lever includes horizontal pole and brake block, the horizontal pole is kept away from gyro wheel one end and is equipped with the montant that makes progress, the one end that the horizontal pole is close to the gyro wheel is equipped with montant downwards, the brake block is fixed on montant downwards, be equipped with the through-hole on the montant downwards, the connecting rod is connected with the wheel carrier, the brake lever is articulated in through-hole department with the connecting rod, the rotation angle that the brake lever wound the connecting rod is between 45-90, the dead lever lower extreme is equipped with the extension pipe, extension pipe lower surface is equipped with trapezoidal recess, trapezoidal recess is located the top of montant that makes progress, trapezoidal recess is equipped with the inclined plane, and when the gyro wheel was withdrawed, the one end that the montant is close to trapezoidal recess that makes progress is inconsistent with the inclined plane, when the montant stretched into trapezoidal recess upwards, the brake lever rotates and will move the locking of taking turns.

Through adopting above-mentioned technical scheme, when the carriage release lever withdrawed, the montant card that makes progress of brake lever entered trapezoidal recess, made brake block and removed the wheel conflict, the restriction removes the wheel motion.

The utility model discloses further set up to: and semicircular rings are arranged on the brake rod and the connecting rod, and an elastic element is arranged between the two semicircular rings.

By adopting the technical scheme, when the moving rod extends out from the retraction state, the elastic element resets the brake rod, so that the roller can move freely.

The utility model discloses further set up to: still include the fixed disk, the fixed disk upper surface is connected with the seat bracing piece, and is a plurality of the lower surface at the fixed disk is connected to the telescopic link.

Through adopting above-mentioned technical scheme, the fixed disk couples together gyro wheel extending structure and chair, and gyro wheel extending structure can realize the removal of chair.

The utility model discloses further set up to: and a polyurethane elastomer is arranged on the outer surface of the moving wheel.

Through adopting above-mentioned technical scheme, the reducible walking noise of polyurethane elastomer increases and removes the wheel wearability.

The utility model discloses further set up to: the telescopic rod is provided with a sleeve, the inner surface of the sleeve is provided with a plurality of sliding grooves, the outer surface of the fixed rod is provided with a plurality of convex blocks, the sliding grooves are matched with the convex blocks, the convex blocks are provided with round holes, the sleeve is provided with a plurality of adjusting holes, and screws penetrate through the adjusting holes to fix the sleeve on the fixed rod.

Through adopting above-mentioned technical scheme, when the brake structure trouble can't block the gyro wheel, down adjust the sleeve pipe, make the sleeve pipe replace gyro wheel and ground contact to play the effect that prevents the chair and remove at will.

The utility model discloses further set up to: the lower end of the sleeve is provided with a protective pad.

Through adopting above-mentioned technical scheme, avoid fish tail ground.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial cross-sectional view of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

In the above drawings: 1. fixing the rod; 2. a travel bar; 3. an extension tube; 4. a moving wheel; 5. a connecting shaft; 6. a bearing; 7. sealing the disc; 8. a wheel carrier; 9. a connecting rod; 10. a brake lever; 11. erecting the rods upwards; 12. a cross bar; 13. a downward vertical rod; 14. a brake pad; 15. a trapezoidal groove; 16. a semicircular ring; 17. an elastic element; 18. a sleeve; 19. fixing the disc; 20. a support bar; 21. a polyurethane elastomer; 22. a bump; 23. an adjustment hole; 24. a protective pad; 25. a screw; 26. a chute.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

The utility model provides a swivel chair base gyro wheel extending structure, as shown in fig. 1-3, including the telescopic link, gyro wheel and fixed disk 19, the telescopic link includes dead lever 1 and

carriage release lever

2, 2 one end of carriage release lever are connected with dead lever 1, the connecting hole has been opened to the 2 other ends of carriage release lever, the welding of 1 lower extreme of dead lever has extension pipe 3, the gyro wheel includes universal revolution mechanic and removes wheel 4, universal revolution mechanic includes bearing 6, connecting axle 5 and sealed

dish

7, 5 one end of connecting axle and bearing 6 interference fit, the other end and the connecting hole threaded connection of connecting axle 5, sealed dish 7 is installed on bearing 6, the welding of sealed dish 7 both sides has wheel carrier 8, it installs on wheel carrier 8 to remove wheel 4, it is equipped with polyurethane elastomer 21 to remove wheel 4 surface.

The brake structure is arranged on the wheel carrier 8 and comprises a connecting rod 9 and a brake rod 10, the brake rod 10 comprises a cross rod 12 and a brake block 14, the cross rod 12 is far away from one end of the roller and is welded with an upward vertical rod 11, one end of the cross rod 12 close to the roller is welded with a downward vertical rod 13, the brake block 14 is welded at the lower end of the downward vertical rod 13, a through hole is formed in the downward vertical rod 13, the connecting rod 9 is welded on the wheel carrier 8, the brake rod 10 is hinged to the connecting rod 9 at the through hole, the rotation angle of the brake rod 10 around the connecting rod 9 is 45-90 degrees, a circle of trapezoidal groove 15 is formed in the lower surface of the extension pipe 3, the trapezoidal groove 15 is located above the upward vertical rod 11, and the trapezoidal groove 15 is provided with an inclined plane.

The brake lever 10 and the connecting rod 9 are welded with semicircular rings 16, an elastic element 17 is connected between the two semicircular rings 16, and the elastic element 17 is a spring.

The upper surface of the fixed disc 19 is connected with a seat support rod 20 through bolts, and 5 telescopic rods are uniformly welded on the lower surface of the fixed disc 19.

The telescopic rod is provided with a sleeve 18, the inner surface of the sleeve 18 is provided with two sliding grooves 26, the outer surface of the fixed rod 1 is bonded with two convex blocks 22, the convex blocks 22 are provided with round holes, the sliding grooves 26 are matched with the convex blocks 22, the sleeve 18 is provided with six adjusting holes 23, a screw 25 penetrates through the adjusting holes 23 to fix the sleeve 18 on the fixed rod 1, and the lower end of the sleeve 18 is bonded with a protective pad 24.

When the moving rod 2 is retracted, one end, close to the trapezoidal groove 15, of the upward vertical rod 11 of the brake rod 10 is abutted to the inclined plane, when the upward vertical rod 11 extends into the trapezoidal groove 15, the brake rod 10 rotates, the brake pad 14 is abutted to the moving wheel 4, the moving wheel 4 is locked, and therefore the chair cannot move randomly, when the moving rod 2 extends out, the spring resets the brake rod 10, the brake pad 14 leaves the moving wheel 4, and the moving wheel 4 can roll to enable the chair to move randomly; when the brake structure fails to clamp the roller, the sleeve 18 is adjusted downwards and fixed by the screw 25, so that the sleeve 18 is in contact with the ground instead of the roller, thereby preventing the chair from moving freely.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a swivel chair base gyro wheel extending structure which characterized in that: comprises a telescopic rod and a roller, the telescopic rod comprises a fixed rod (1) and a movable rod (2), one end of the movable rod (2) is connected with the fixed rod (1), the other end of the movable rod (2) is provided with a connecting hole, the roller comprises a universal rotating structure and a moving wheel (4), the universal rotating structure comprises a bearing (6), a connecting shaft (5) and a sealing disc (7), one end of the connecting shaft (5) is connected with the bearing (6), the other end of the connecting shaft (5) is connected with the connecting hole, the sealing disc (7) is connected on the bearing (6), wheel carriers (8) are arranged on two sides of the sealing disc (7), the wheel carrier (8) is used for fixing the movable wheel (4), the wheel carrier (8) is provided with a brake structure, when the moving rod (2) is retracted, the moving wheel (4) is blocked by the brake structure, and the moving wheel (4) cannot roll.

2. The telescopic structure of the swivel chair base roller as claimed in claim 1, wherein: the brake structure comprises a connecting rod (9) and a brake rod (10), the brake rod (10) comprises a cross rod (12) and a brake block (14), one end of the cross rod (12), which is far away from the roller, is provided with an upward vertical rod (11), one end of the cross rod (12), which is close to the roller, is provided with a downward vertical rod (13), the brake block (14) is fixed on the downward vertical rod (13), a through hole is arranged on the downward vertical rod (13), the connecting rod (9) is connected with a wheel carrier (8), the brake rod (10) is hinged with the connecting rod (9) at the through hole, the rotation angle of the brake rod (10) around the connecting rod (9) is 45-90 degrees, the lower end of the fixing rod (1) is provided with an extension pipe (3), the lower surface of the extension pipe (3) is provided with a trapezoidal groove (15), and the trapezoidal groove (15) is positioned above the upward vertical rod (11), trapezoidal recess (15) are equipped with the inclined plane, and when the gyro wheel was withdrawed, the one end that montant (11) were close to trapezoidal recess (15) made progress was inconsistent with the inclined plane, and when montant (11) made progress stretched into trapezoidal recess (15), brake lever (10) rotated and will removed wheel (4) locking.

3. The telescopic structure of the swivel chair base roller as claimed in claim 2, wherein: the brake rod (10) and the connecting rod (9) are both provided with semicircular rings (16), and an elastic element (17) is arranged between the semicircular rings (16).

4. The telescopic structure of the swivel chair base roller as claimed in claim 1, wherein: still include fixed disk (19), fixed disk (19) upper surface is connected with seat bracing piece (20), and is a plurality of the lower surface at fixed disk (19) is connected to the telescopic link.

5. The telescopic structure of the swivel chair base roller as claimed in claim 1, wherein: and a polyurethane elastomer (21) is arranged on the outer surface of the moving wheel (4).

6. The telescopic structure of the swivel chair base roller as claimed in claim 1, wherein: be equipped with sleeve pipe (18) on the telescopic link, the internal surface of sleeve pipe (18) is equipped with a plurality of spout (26), the surface of dead lever (1) is equipped with a plurality of lugs (22), spout (26) and lug (22) cooperation, be equipped with the round hole on lug (22), be equipped with a plurality of regulation holes (23) on sleeve pipe (18), use screw (25) to pass regulation hole (23) and fix sleeve pipe (18) on dead lever (1).

7. The telescopic structure of the swivel chair base roller as claimed in claim 6, wherein: the lower end of the sleeve (18) is provided with a protective pad (24).