CN211808834U

CN211808834U - Universal wheel

Info

Publication number: CN211808834U
Application number: CN202020445994.9U
Authority: CN
Inventors: 许棋鸿
Original assignee: Jinjiang Hongrui Plastic Products Co ltd
Current assignee: Jinjiang Hongrui Plastic Products Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-10-30
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses an universal wheel belongs to truckle technical field, including gyro wheel support, connecting rod, linking bridge, gyro wheel, in the connecting rod one end embedding linking bridge to rotate with the linking bridge and be connected, the gyro wheel support rotates with the gyro wheel and is connected, the utility model discloses utilize the footboard to promote the mounting through transmission structure and remove to the connecting piece direction for the mounting is connected with the connecting piece, and fixed connection spare's position, and then connecting piece fixed connection pole position avoids the connecting rod to take place to rotate, thereby improves people's result of use, does not need the removal track of the extravagant strength real-time adjustment universal wheel of people, improves the universal wheel and uses the practicality.

Description

Universal wheel

Technical Field

The utility model discloses an universal wheel belongs to truckle technical field.

Background

The castor is a so-called movable caster, and the structure of the castor allows 360-degree horizontal rotation. The caster is a general term and comprises a movable caster and a fixed caster. The fixed caster has no rotating structure, can not rotate horizontally but can only rotate vertically. The two casters are commonly used in combination, for example, the structure of the cart is that the front side is provided with two fixed wheels, and the rear side is provided with two movable universal wheels close to the handrail of the cart. The universal wheel refers to a bracket which is arranged on a caster wheel and can horizontally rotate for 360 degrees in dynamic load or static load.

However, the universal wheel has a certain defect in the using process, when a heavy object is supported on the universal wheel and needs to be transported back and forth along one direction, due to the horizontal 360-degree rotation characteristic of the universal wheel, the direction of the universal wheel is easy to change during the transporting process, so that a user needs to use strength to change the direction of the universal wheel, the moving track of the universal wheel is adjusted in real time, and the gravity of a heavy object is added, so that the user needs to use larger strength to change the direction of the universal wheel. The practicality of the universal wheel is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving foretell problem and providing an universal wheel, the footboard passes through transmission structure and promotes the mounting and remove to the connecting piece direction for the mounting is connected with the connecting piece, and fixed connection spare's position, and then connecting piece fixed connection pole position avoids the connecting rod to take place to rotate, thereby improves people's result of use, does not need the removal track of the extravagant strength real-time adjustment universal wheel of people, improves the universal wheel and uses the practicality.

The utility model discloses a following technical scheme realizes above-mentioned purpose, an universal wheel, including gyro wheel support, connecting rod, linking bridge, gyro wheel, in the connecting rod one end embedding linking bridge to rotate with the linking bridge and be connected, the gyro wheel support rotates with the gyro wheel and is connected, gyro wheel support and linking bridge fixed connection, one side that the gyro wheel support was kept away from to the linking bridge is provided with the footboard, inside footboard one end embedding linking bridge, the other end is located the outside of linking bridge, the footboard is connected with the linking bridge, the inside mounting that is provided with of linking bridge, be provided with transmission structure between footboard and the mounting, one of connecting rod embedding linking bridge serves and is provided with the connecting piece.

Through adopting above-mentioned technical scheme, when the universal wheel direction is fixed to needs, trample the footboard downwards, the footboard promotes the mounting through transmission structure and removes to the connecting piece direction for the mounting is connected with the connecting piece, and fixed connection spare's position, and then connecting piece fixed connection pole position avoids the connecting rod to take place to rotate, thereby improves people's result of use, does not need the removal track of the extravagant strength real-time adjustment universal wheel of people, improves the universal wheel practicality of use.

Preferably, the transmission structure comprises a gear, a rack and a transmission rod, the gear is connected with the pedal and is located at the rotating connection position of the pedal and the connecting support, the gear is meshed with the rack, one end of the transmission rod is hinged with the rack, and the other end of the transmission rod is hinged with the fixing piece.

Through adopting above-mentioned technical scheme, utilize the cooperation between gear, rack, the transfer line, realize that transmission structure promotes the effect that the mounting removed.

Preferably, a limiting block is arranged at one end, far away from the transmission rod, of the rack.

Through adopting above-mentioned technical scheme, utilize the stopper to avoid the rack to remove the overtravel, guarantee transmission structure's transmission stability.

Preferably, the connecting piece comprises a guide pillar and a plurality of first clamping pieces, the first clamping pieces are evenly distributed on the outer side of the guide pillar at intervals, and a U-shaped groove is formed in one side, close to the connecting piece, of the fixing piece.

Through adopting above-mentioned technical scheme, utilize the cooperation between guide pillar, first fastener, the U type groove, realize the effect of mounting fixed connection piece position.

Preferably, a second clamping piece is arranged at the top of the inner side of the U-shaped groove of the fixing piece.

Through adopting above-mentioned technical scheme, utilize the second fastener to imbed between two first fasteners, strengthen the fastness of being connected between mounting and the connecting piece.

Preferably, one end of the fixing piece, which is far away from the connecting piece, is provided with a positioning structure.

Through adopting above-mentioned technical scheme, utilize the position of location structure fixed mounting, guarantee the fastness of being connected between mounting and the connecting piece.

Preferably, the positioning structure comprises a clamping groove, a third clamping piece and an elastic element, the clamping groove is formed in the fixing piece, the third clamping piece is located on one side, provided with the clamping groove, of the fixing piece, the third clamping piece is located on one side, close to the connecting piece, of the clamping groove, one end of the third clamping piece is attached to the outer side of the fixing piece, the other end of the third clamping piece is connected with the elastic element, and the elastic element is connected with the connecting support.

By adopting the technical scheme, the effect of fixing the position of the fixing part is realized by utilizing the matching among the clamping groove, the third clamping piece and the elastic element.

Preferably, the clamping groove is positioned on one side of the fixing piece close to the connecting rod.

Through adopting above-mentioned technical scheme for the reason that the third fastener received gravity moves to the mounting direction automatically, reduces elastic element's atress condition.

Preferably, an arc-shaped structure is arranged at one end of the third clamping piece, which is contacted with the fixing piece, and the clamping groove is of an inwards concave arc-shaped structure.

Through adopting above-mentioned technical scheme, utilize arc structure and indent arc structure to cooperate, take place card shell phenomenon when avoiding third fastener and draw-in groove phase separation.

Preferably, the roller is made of PVC.

Through adopting above-mentioned technical scheme, PVC has the advantage that mechanical strength is good, gives the gyro wheel good mechanical strength.

Compared with the prior art, the beneficial effects of the utility model are that:

trample the footboard downwards, the footboard promotes the mounting through transmission structure and removes to the connecting piece direction for the mounting is connected with the connecting piece, and fixed connection spare's position, and then connecting piece fixed connection pole position avoids the connecting rod to take place to rotate, thereby improves people's result of use, does not need the removal track of the extravagant strength real-time adjustment universal wheel of people, improves the universal wheel and uses the practicality.

Drawings

Fig. 1 is a schematic structural view of a universal wheel of the present invention, which is mainly used for showing the overall structure of the universal wheel;

FIG. 2 is a schematic structural view of the connecting bracket of the present invention, which is mainly used to show the internal structure of the connecting bracket;

fig. 3 is a schematic structural view of the connector of the present invention, which is mainly used for showing the position relationship between the guide post and the first clamping member;

fig. 4 is a schematic structural diagram of the fixing member of the present invention, which is mainly used for showing the positions of the U-shaped groove and the first clamping member of the fixing member.

Reference numerals: 1. a roller bracket; 2. a connecting rod; 3. connecting a bracket; 4. a pedal; 5. a roller; 6. a gear; 7. a rack; 8. a transmission rod; 9. a fixing member; 10. a connecting member; 11. an elastic element; 12. a card slot; 13. a third fastener; 14. a guide post; 15. a first clip member; 16. a second clip member.

Detailed Description

In the following description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like refer to the orientation or position relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present invention. 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.

As shown in fig. 1, 2, 3 and 4, a universal wheel comprises a wheel support 1, a connecting rod 2, a connecting support 3 and a wheel 5, wherein one end of the connecting rod 2 is embedded into the connecting support 3 and is rotatably connected with the connecting support 3, the wheel support 1 is rotatably connected with the wheel 5, the wheel support 1 is fixedly connected with the connecting support 3, so that when the universal wheel is used, the connecting rod 2 is matched with the connecting support 3 to realize the horizontal 360-degree rotation characteristic of the universal wheel, when people need to fix a moving track of the universal wheel, people trample a pedal 4 downwards, one end of the pedal 4 is embedded into the connecting support 3, the other end of the pedal is positioned at the outer side of the connecting support 3, so that people can conveniently trample the pedal 4 directly, a fixing member 9 is arranged inside the connecting support 3, a transmission structure is arranged between the pedal 4 and the fixing member 9, so that the fixing member 9 is pushed to move towards the direction, and the fixing part 9 is contacted with the connecting rod 2, so that the fixing part 9 fixes the position of the connecting rod 2 and prevents the connecting rod 2 from rotating, the connecting part 10 is arranged at one end of the connecting bracket 3, the connecting stability between the fixing part 9 and the connecting rod 2 is enhanced by using the connecting part 10, and the end of the fixing part 9 far away from the connecting part 10 is provided with a positioning structure, so that after the fixing part 9 is contacted with the connecting rod 2, the positioning structure opens the position for fixing the fixing part 9, the fixing part 9 is ensured to be jointed with the connecting rod 2, the fixing effect on the position of the connecting rod 2 is further ensured, the problem that the prior people waste strength adjusts the moving track of the universal wheel in real time is avoided, the use practicability of the universal wheel is improved, and simultaneously when the universal wheel is required to be restored to the original state, thereby restoring the pivoting effect of the connecting rod 2.

The transmission structure comprises a gear 6, a rack 7 and a transmission rod 8, wherein the gear 6 is connected with the pedal 4, the gear 6 is positioned at the rotary connection part of the pedal 4 and the connecting bracket 3, so that when the pedal 4 is treaded downwards, the gear 6 is driven to rotate, the gear 6 is meshed with the rack 7 to drive the rack 7 to move, one end of the transmission rod 8 is hinged with the rack 7, the other end of the transmission rod 8 is hinged with the fixing piece 9, the rack 7 pushes the fixing piece 9 to move towards the connecting rod 2 through the transmission rod 8, so that the fixing piece 9 is connected with the connecting piece 10, the position of the connecting rod 2 is fixed, a limiting block is arranged at one end of the rack 7 far away from the transmission rod 8, the limiting block is used for avoiding the rack 7 from moving over-distance, the transmission stability of the transmission structure is ensured, and further, the service life of the universal wheel is prolonged.

Meanwhile, one end of the fixing part 9, which is far away from the connecting part 10, is provided with a positioning structure, the positioning structure comprises a clamping groove 12, a third clamping part 13 and an elastic element 11, the clamping groove 12 is arranged on the fixing part 9, so that when the fixing part 9 moves towards the direction close to the connecting part 10, the position of the clamping groove 12 moves along with the movement, the third clamping part 13 is arranged at one side of the fixing part 9, which is provided with the clamping groove 12, and the third clamping part 13 is arranged at one side of the clamping groove 12, which is close to the connecting part 10, so that when the fixing part 9 is contacted with the connecting part 10, the position of the third clamping part 13 just corresponds to the position of the clamping groove 12, one end of the third clamping part 13 is attached to the outer side of the fixing part 9, the other end of the third clamping part 13 is connected with the elastic element 11, the elastic element 11 is connected with the connecting bracket 3, meanwhile, the clamping groove 12 is located on one side, close to the connecting rod 2, of the fixing part 9, after multiple times of use, the elastic performance of the elastic element 11 is reduced, the gravity effect is utilized to drive the third clamping part 13 to automatically move downwards, the third clamping part 13 is automatically embedded into the clamping groove 12, the using effect of the positioning structure is improved, the third clamping part 13 is provided with an arc-shaped structure with one end contacted with the fixing part 9, the clamping groove 12 is arranged to be an inwards concave arc-shaped structure, the arc-shaped structure and the inwards concave arc-shaped structure are matched, the fixing part 9 reversely moves when the pedal 4 is upwards lifted, the clamping shell phenomenon is reduced when the third clamping part 13 is separated from the clamping groove 12, and.

When the fixing member 9 moves towards the direction close to the connecting member 10, a U-shaped groove is formed on one side of the fixing member 9 close to the connecting member 10, the connecting member 10 is embedded into the fixing member 9 by using the U-shaped groove, so that the fixing member 9 limits the rotation of the connecting member 10, meanwhile, the connecting piece 10 comprises a guide post 14 and a plurality of first clamping pieces 15, the first clamping pieces 15 are uniformly distributed on the outer side of the guide post 14 at intervals, the roughness of the outer side of the guide post 14 is increased by utilizing the first clamping pieces 15, the friction force between the connecting piece 10 and the fixing piece 9 is improved, the fixing effect of the fixing piece 9 on the connecting piece 10 is improved, meanwhile, a second clamping piece 16 is arranged at the top of the inner side of the U-shaped groove of the fixing piece 9, when the fixing piece 9 is jointed with the connecting piece 10, the second clamping piece 16 is embedded between the two first clamping pieces 15, so that the connection firmness between the fixing piece 9 and the connecting piece 10 is enhanced, and the use effect of people is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The universal wheel is characterized by comprising a roller wheel bracket (1), a connecting rod (2), a connecting bracket (3) and a roller wheel (5), wherein one end of the connecting rod (2) is embedded into the connecting bracket (3), and is rotationally connected with the connecting bracket (3), the roller bracket (1) is rotationally connected with the roller (5), the roller wheel bracket (1) is fixedly connected with the connecting bracket (3), a pedal (4) is arranged on one side of the connecting bracket (3) far away from the roller wheel bracket (1), one end of the pedal (4) is embedded into the connecting bracket (3), the other end is positioned at the outer side of the connecting bracket (3), the pedal (4) is connected with the connecting bracket (3), a fixing piece (9) is arranged in the connecting bracket (3), a transmission structure is arranged between the pedal (4) and the fixing piece (9), and a connecting piece (10) is arranged at one end of the connecting rod (2) embedded into the connecting support (3).

2. A castor according to claim 1, wherein: the transmission structure comprises a gear (6), a rack (7) and a transmission rod (8), the gear (6) is connected with the pedal (4), the gear (6) is located at the rotating connection position of the pedal (4) and the connecting bracket (3), the gear (6) is meshed with the rack (7), one end of the transmission rod (8) is hinged to the rack (7), and the other end of the transmission rod is hinged to the fixing piece (9).

3. A castor according to claim 2, wherein: and a limiting block is arranged at one end of the rack (7) far away from the transmission rod (8).

4. A castor according to claim 1, wherein: the connecting piece (10) comprises a guide post (14) and a plurality of first clamping pieces (15), the first clamping pieces (15) are uniformly distributed on the outer side of the guide post (14) at intervals, and a U-shaped groove is formed in one side, close to the connecting piece (10), of the fixing piece (9).

5. The universal wheel of claim 4, wherein: and a second clamping piece (16) is arranged at the top of the inner side of the U-shaped groove of the fixing piece (9).

6. A castor according to claim 1 or 5, wherein: and a positioning structure is arranged at one end of the fixing piece (9) far away from the connecting piece (10).

7. The universal wheel of claim 6, wherein: the positioning structure comprises a clamping groove (12), a third clamping piece (13) and an elastic element (11), wherein the clamping groove (12) is formed in the fixing piece (9), the third clamping piece (13) is located on one side, provided with the clamping groove (12), of the fixing piece (9), the third clamping piece (13) is located on one side, close to the connecting piece (10), of the clamping groove (12), one end of the third clamping piece (13) is attached to the outer side of the fixing piece (9), the other end of the third clamping piece is connected with the elastic element (11), and the elastic element (11) is connected with the connecting support (3).

8. A castor according to claim 7, wherein: the clamping groove (12) is positioned on one side of the fixing piece (9) close to the connecting rod (2).

9. A castor according to claim 8, wherein: an arc-shaped structure is arranged at one end, in contact with the fixing piece (9), of the third clamping piece (13), and the clamping groove (12) is of an inwards concave arc-shaped structure.

10. A castor according to claim 1, wherein: the roller (5) is made of PVC.