CN216101339U - Universal wheel with good buffering performance - Google Patents

Abstract

The utility model discloses a universal wheel with good buffering performance, which comprises a fixed frame. The universal wheel with good buffering performance is characterized in that a bearing inner ring can rotate on the inner side of a bearing outer ring through balls, the bearing inner ring drives a rotating shaft to rotate, the rotating shaft drives a fixed block to rotate, a connecting column drives a wheel to rotate through a fixed frame, when the wheel is subjected to external impact force, the wheel drives the fixed frame to move upwards, the connecting column pushes two sliding blocks to move towards two sides, the impact force can be buffered through a first spring on one side of each sliding block, meanwhile, the connecting column drives a movable plate to move through the sliding blocks, the movable plate drives an elastic plate to move, the elastic plate compresses a second spring through the first sliding block, the impact force can be further buffered through the elastic plate and the second spring, the whole device is simple in structure and convenient to use, the external impact force can be effectively buffered, and the wheel and the bearing are protected, the service life of the universal wheel is ensured.

Description

Universal wheel with good buffering performance

Technical Field

The utility model relates to the technical field of universal wheels, in particular to a universal wheel with good buffering performance.

Background

The universal wheel means that a bracket arranged on the caster wheel can horizontally rotate for 360 degrees in dynamic load or static load, and the universal wheel can move in any direction using the shape of a standard case. The castor is a so-called movable caster, and the structure of the castor allows 360-degree horizontal rotation. The caster is a general name, and comprises a movable caster and a fixed caster, wherein the fixed caster has no rotating structure, can not rotate horizontally and can only rotate vertically. These two types of casters are commonly used in combination, for example, a cart has a structure with two fixed wheels at the front and two movable universal wheels at the rear, which are close to the pushing handrail. According to different uses, the bearing is divided into an iron core, an aluminum core and a plastic core, the sizes of the iron core, the aluminum core and the plastic core are different from 1 inch to 8 inches, wherein the iron core and the aluminum core are generally heavy load-bearing wheels, and a brake tool is often equipped when the bearing is used. There are a number of materials from which the castor is made, the most common being: nylon, polyurethane, rubber, cast iron and other materials are widely applied to various industries and fields such as mines, mechanical equipment, electronic equipment, medical equipment, engineering decoration, textile, printing and dyeing, furniture, logistics equipment, warehousing, turnover vehicles, cabinets, equipment, electromechanics, dust-free workshops, production lines, large supermarkets and the like. At present the universal wheel can receive external impact force such as road surface in the use, owing to do not have effectual buffer, can cause the damage to wheel and bearing when the impact force is too big, has seriously influenced the life of universal wheel.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a universal wheel with good buffering performance so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a universal wheel with good buffering performance comprises a fixed frame, the inner side of the fixed frame is movably connected with a wheel through a wheel shaft, the top of the fixed frame is fixedly connected with the bottom end of a connecting column, the top end of the connecting column penetrates through the bottom of a fixed block and extends into the fixed block to be movably connected with one side of a sliding block, the other side of the sliding block is fixedly connected with one side of a spring connecting seat, the other side of the spring connecting seat is fixedly connected with one end of a first spring, the other end of the first spring is fixedly connected with the inner wall of one side of the fixed block through the spring connecting seat, the bottom end of the sliding block is movably connected with the inner wall of the bottom of the fixed block, the top end of the sliding block is slidably connected with the bottom of a movable plate, the two ends of the movable plate are respectively slidably connected with the inner walls of the two sides of the fixed block, and the top of the movable plate is fixedly connected with the bottom of an elastic plate, the utility model discloses a bearing inner circle, including the elastic plate top, the bottom fixed connection of fixed block, first slider, second slider, first slider and slide bar sliding connection, the both ends at elastic plate top respectively with the bottom fixed connection of two first sliders, be provided with the slide bar on the first slider, and first slider and slide bar sliding connection, the both ends of slide bar respectively with the inner wall fixed connection of fixed block both sides, one side of first slider is equipped with the second spring, and the second spring cover is located on the slide bar, one end of second spring and one side fixed connection of first slider, the other end of second spring and the inner wall fixed connection of fixed block one side, the top of fixed block and the bottom fixed connection of rotation axis, the top of rotation axis and the inboard fixed connection of bearing inner circle, the outside of bearing inner circle is provided with the bearing outer lane, and the bearing inner circle passes through ball and bearing outer circle swing joint, the top of bearing outer lane and the bottom fixed connection of fixing base.

Preferably, the both sides on connecting the capital end all are provided with the gyro wheel, and the spliced pole passes through one side swing joint of gyro wheel and sliding block.

Preferably, the two ends of the movable plate are provided with second sliding blocks, and the movable plate is connected with the inner walls of the two sides of the fixed block in a sliding mode through the second sliding blocks.

Preferably, the outer side of the bearing inner ring and the inner side of the bearing outer ring are both provided with grooves, and the bearing inner ring and the bearing outer ring are both movably connected with the balls through the grooves.

Preferably, the fixing seat is provided with a fixing hole.

Compared with the prior art, the utility model has the beneficial effects that: the universal wheel with good buffering performance is characterized in that a bearing inner ring can rotate on the inner side of a bearing outer ring through balls, the bearing inner ring further drives a rotating shaft to rotate, the rotating shaft drives a fixed block to rotate, the fixed block drives a connecting column to rotate, the connecting column drives a wheel to rotate through a fixed frame, so that the wheel can be conveniently rotated, when the wheel is subjected to external impact force, the wheel drives the fixed frame to move upwards, the fixed frame drives the connecting column to move upwards, the connecting column pushes two sliding blocks to move towards two sides, the impact force can be buffered through a first spring on one side of the sliding blocks, meanwhile, the connecting column drives a movable plate to move through the sliding blocks, the movable plate drives an elastic plate to move, the elastic plate compresses a second spring through the first sliding block, the impact force can be further buffered through the elastic plate and the second spring, and therefore, the impact force can be prevented from damaging the wheel and the bearing, whole device simple structure, convenient to use can effectually cushion external impact force, protects wheel and bearing, has guaranteed the life of universal wheel.

Drawings

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

FIG. 2 is a structural sectional view of a fixing block according to the present invention;

FIG. 3 is a structural cross-sectional view of the bearing cup of the present invention;

fig. 4 is a top view of the fixing base of the present invention.

In the figure: 1. a fixed mount; 2. a wheel axle; 3. a wheel; 4. connecting columns; 5. a fixed block; 6. a slider; 7. a spring connecting seat; 8. a first spring; 9. a movable plate; 10. an elastic plate; 11. a first slider; 12. a slide bar; 13. a second spring; 14. a rotating shaft; 15. a bearing inner race; 16. a bearing outer race; 17. a ball bearing; 18. a fixed seat; 19. a roller; 20. a second slider; 21. and (7) fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a universal wheel with good buffering performance comprises a fixed frame 1, the inner side of the fixed frame 1 is movably connected with a wheel 3 through a wheel shaft 2, the top of the fixed frame 1 is fixedly connected with the bottom end of a connecting column 4, the top end of the connecting column 4 penetrates through the bottom of a fixed block 5 and extends into the fixed block 5 to be movably connected with one side of a sliding block 6, two sides of the top end of the connecting column 4 are respectively provided with a roller 19, the connecting column 4 is movably connected with one side of the sliding block 6 through the roller 19, the other side of the sliding block 6 is fixedly connected with one side of a spring connecting seat 7, the other side of the spring connecting seat 7 is fixedly connected with one end of a first spring 8, the other end of the first spring 8 is fixedly connected with the inner wall of one side of the fixed block 5 through the spring connecting seat 7, the bottom end of the sliding block 6 is movably connected with the inner wall of the bottom of the fixed block 5, and the top end of the sliding block 6 is slidably connected with the bottom of a movable plate 9, two ends of a movable plate 9 are respectively connected with the inner walls of two sides of a fixed block 5 in a sliding manner, two ends of the movable plate 9 are respectively provided with a second slider 20, the movable plate 9 is connected with the inner walls of two sides of the fixed block 5 in a sliding manner through the second slider 20, the top of the movable plate 9 is fixedly connected with the bottom of an elastic plate 10, two ends of the top of the elastic plate 10 are respectively fixedly connected with the bottoms of two first sliders 11, the first sliders 11 are provided with slide bars 12, the first sliders 11 are connected with the slide bars 12 in a sliding manner, two ends of the slide bars 12 are respectively fixedly connected with the inner walls of two sides of the fixed block 5, one side of the first slider 11 is provided with a second spring 13, the second spring 13 is sleeved on the slide bars 12, one end of the second spring 13 is fixedly connected with one side of the first slider 11, the other end of the second spring 13 is fixedly connected with the inner wall of one side of the fixed block 5, and the top of the fixed block 5 is fixedly connected with the bottom end of a rotating shaft 14, the top end of the rotating shaft 14 is fixedly connected with the inner side of the bearing inner ring 15, the outer side of the bearing inner ring 15 is provided with a bearing outer ring 16, the bearing inner ring 15 is movably connected with the bearing outer ring 16 through a ball 17, the outer side of the bearing inner ring 15 and the inner side of the bearing outer ring 16 are both provided with grooves, the bearing inner ring 15 and the bearing outer ring 16 are both movably connected with the ball 17 through the grooves, the top of the bearing outer ring 16 is fixedly connected with the bottom of a fixed seat 18, a fixed hole 21 is arranged on the fixed seat 18, the bearing inner ring 15 can rotate on the inner side of the bearing outer ring 16 through the ball 17, the bearing inner ring 15 drives the rotating shaft 14 to rotate, the rotating shaft 14 drives a fixed block 5 to rotate, the fixed block 5 drives a connecting column 4 to rotate, the connecting column 4 drives the wheel 3 to rotate through a fixed frame 1, so that the wheel 3 can conveniently rotate, when the wheel 3 is subjected to external impact force, the wheel 3 drives the fixed frame 1 to move upwards, mount 1 drives spliced pole 4 rebound, spliced pole 4 promotes two sliding blocks 6 and removes to both sides, first spring 8 through sliding block 6 one side can cushion the impact force, spliced pole 4 drives fly leaf 9 through sliding block 6 again and removes simultaneously, fly leaf 9 drives elastic plate 10 and removes, elastic plate 10 rethread first slider 11 compression second spring 13, can further cushion the impact force through elastic plate 10 and second spring 13, thereby can avoid the impact force to cause the damage to wheel 3 and bearing, whole device simple structure, high durability and convenient use, can effectually cushion external impact force, protect wheel 3 and bearing, the life of universal wheel has been guaranteed.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a universal wheel that shock-absorbing capacity is good, includes mount (1), its characterized in that: the inner side of the fixed frame (1) is movably connected with the wheels (3) through the wheel shaft (2), the top of the fixed frame (1) is fixedly connected with the bottom end of the connecting column (4), the top end of the connecting column (4) penetrates through the bottom of the fixed block (5) and extends to the inside of the fixed block (5) to be movably connected with one side of the sliding block (6), the other side of the sliding block (6) is fixedly connected with one side of the spring connecting seat (7), the other side of the spring connecting seat (7) is fixedly connected with one end of the first spring (8), the other end of the first spring (8) is fixedly connected with the inner wall of one side of the fixed block (5) through the spring connecting seat (7), the bottom end of the sliding block (6) is movably connected with the inner wall of the bottom of the fixed block (5), and the top end of the sliding block (6) is slidably connected with the bottom of the movable plate (9), the both ends of fly leaf (9) respectively with the inner wall sliding connection of fixed block (5) both sides, the top of fly leaf (9) and the bottom fixed connection of elastic plate (10), the both ends at elastic plate (10) top respectively with the bottom fixed connection of two first sliders (11), be provided with slide bar (12) on first slider (11), and first slider (11) and slide bar (12) sliding connection, the both ends of slide bar (12) respectively with the inner wall fixed connection of fixed block (5) both sides, one side of first slider (11) is equipped with second spring (13), and second spring (13) cover is located on slide bar (12), one end of second spring (13) and one side fixed connection of first slider (11), the other end of second spring (13) and the inner wall fixed connection of fixed block (5) one side, the top of fixed block (5) and the bottom fixed connection of rotation axis (14), the top end of the rotating shaft (14) is fixedly connected with the inner side of the bearing inner ring (15), the outer side of the bearing inner ring (15) is provided with a bearing outer ring (16), the bearing inner ring (15) is movably connected with the bearing outer ring (16) through balls (17), and the top of the bearing outer ring (16) is fixedly connected with the bottom of the fixed seat (18).

2. The universal wheel with good buffering performance as claimed in claim 1, wherein: both sides on spliced pole (4) top all are provided with gyro wheel (19), and spliced pole (4) pass through gyro wheel (19) and one side swing joint of sliding block (6).

3. The universal wheel with good buffering performance as claimed in claim 1, wherein: the two ends of the movable plate (9) are provided with second sliding blocks (20), and the movable plate (9) is connected with the inner walls of the two sides of the fixed block (5) in a sliding mode through the second sliding blocks (20).

4. The universal wheel with good buffering performance as claimed in claim 1, wherein: the outer side of the bearing inner ring (15) and the inner side of the bearing outer ring (16) are both provided with grooves, and the bearing inner ring (15) and the bearing outer ring (16) are both movably connected with the balls (17) through the grooves.

5. The universal wheel with good buffering performance as claimed in claim 1, wherein: the fixed seat (18) is provided with a fixed hole (21).

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