CN212307070U

CN212307070U - High-strength universal wheel

Info

Publication number: CN212307070U
Application number: CN202020889084.XU
Authority: CN
Inventors: 胡景榆
Original assignee: Jiaxing Lianhong Plastic Co ltd
Current assignee: Jiaxing Lianhong Plastic Co ltd
Priority date: 2020-05-23
Filing date: 2020-05-23
Publication date: 2021-01-08
Anticipated expiration: 2030-05-23

Abstract

The utility model relates to a high-strength universal wheel, which comprises an installation shell arranged at four corners of the bottom of a suitcase, a universal shell rotationally connected to the installation shell around a vertical axis, a wheel body rotationally connected to the universal shell around a horizontal axis, and a wheel body dismounting mechanism arranged on the universal shell and enabling the wheel body to be dismounted, wherein the wheel body dismounting mechanism comprises two rotating rods respectively connected to the universal shell towards the two side surfaces of the wheel body in a sliding way along the direction of the rotational axis of the wheel body, connecting rods respectively fixedly connected to one ends of the two rotating rods positioned in the universal shell, and a connecting rod driving mechanism arranged on the universal shell and driving the two connecting rods to move in opposite directions, the rotating rods are spliced and rotationally connected to the central axis of the wheel body, and the universal wheel body is provided with a structure that, the wheel body can be conveniently replaced when the abrasion is large, and meanwhile, the effect of large resource waste is avoided.

Description

High-strength universal wheel

Technical Field

The utility model belongs to the technical field of the technique of case and bag accessory and specifically relates to an universal wheel of high strength is related to.

Background

When the suitcase is going out for traveling or moving home, the suitcase is often used for carrying clothes, and in order to facilitate the movement of the suitcase, four universal wheels are arranged at the bottom of the suitcase, and bear the weight of the whole suitcase, so the universal wheels need to have higher strength so as to avoid the condition that the universal wheels are easy to damage.

The current case and bag universal wheel, notice number is CN102059918A, the bottom correspondence of case and bag is equipped with a plurality of mount pads, the case and bag universal wheel includes: wheel seat, round foot, gyro wheel, cross axle and axis of ordinates, be equipped with longitudinal bearing in the round foot, the axis of ordinates passes longitudinal bearing with wheel seat fixed connection, the round foot winds the axis of ordinates is along longitudinal rotation, the wheel foot is the downwardly protruding extension and is formed with two wheel covers, it has the shaft hole to correspond to begin on the wheel cover, the gyro wheel axle is located two between the wheel cover, the cross axle passes gyro wheel and both ends are fixed on the wheel cover, the gyro wheel winds the cross axle rotates, the wheel seat is installed on the mount pad, the cross axle with the epaxial cladding of ordinates has the carbon steel coating respectively.

The above prior art solutions have the following drawbacks: when the universal wheel is worn to a great extent and needs to be replaced, the cross shaft penetrates through the idler wheels and the two ends of the cross shaft respectively penetrate through the shaft holes to be fixed on the wheel cover, so that the whole universal wheel needs to be detached and replaced during replacement, and resources are wasted.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, one of the purposes of the utility model is to provide a universal wheel of high strength, it has the effect that can reduce the waste of resource when changing the wheel body.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a universal wheel of high strength, is including locating the installation shell of four angles departments in case and bag bottom, rotate around vertical axis and connect in the universal shell of installation shell, locate universal shell bottom opening part and around horizontal axis pivoted wheel body, locate universal shell and make the wheel body can dismantle wheel body disassembly body, wheel body disassembly body includes along wheel body rotation axis direction respectively sliding connection in universal shell towards two bull sticks of wheel body both sides face, respectively fixed connection in two bull sticks be located the connecting rod of one end in the universal shell, locate universal shell and drive the connecting rod drive mechanism of two connecting rods motion in opposite directions, and the bull stick is pegged graft and is rotated and connect in wheel body the central axis department.

Through adopting above-mentioned technical scheme for when the longer wearing and tearing of wheel body live time are great, accessible connecting rod drive mechanism drives two bull sticks and keeps away from the wheel body, makes the wheel body no longer receive the grafting of bull stick fixed, then can more conveniently change the wheel body, need not carry out the overall change to whole installation shell and universal shell, and is comparatively convenient and can resources are saved.

The present invention may be further configured in a preferred embodiment as: the two connecting rods have height difference in the vertical direction, and the connecting rod driving mechanism comprises two opposite racks respectively fixedly connected to the close upper ends of the two connecting rods, opposite gears rotatably connected to the inside of the universal shell and meshed with the two opposite racks, and a gear rotating mechanism arranged on the universal shell and driving the opposite gears to rotate.

Through adopting above-mentioned technical scheme for gear revolve in opposite directions can drive two racks in opposite directions and carry out the relative motion, make two bull sticks to peg graft in the wheel body in step then, ensure that the wheel body is arranged in universal shell suitable position department, and the wheel body terminal surface can not rub mutually with universal shell opening part side, guarantees that the universal wheel rotates smoothly.

The present invention may be further configured in a preferred embodiment as: the gear rotating mechanism comprises a worm wheel, a worm and a screw head, wherein the worm wheel is coaxially and fixedly connected with the opposite gear, the worm is meshed with the worm wheel and is rotatably connected with the universal shell, and the screw head is coaxially and fixedly connected with one end, exposed out of the universal shell, of the worm.

Through adopting above-mentioned technical scheme, the cooperation of worm gear carries out the transmission of power and can avoid the random removal of bull stick, ensures when the wheel body rotates, and the bull stick can not remove at will and lead to the wheel body to rotate the shakiness, also avoids the universal wheel to produce bigger friction when rotating and between the bull stick.

The present invention may be further configured in a preferred embodiment as: the rotating rod is located one end of the wheel body and is connected with an inserting round block in a rotating mode, an inserting block is fixedly connected to the outer wall of the circumference of the inserting round block, a round block groove for inserting the inserting round block is formed in the wheel body, and a slot for inserting the inserting block is formed in the horizontal inner wall of the round block groove.

Through adopting above-mentioned technical scheme, the inserted block that will peg graft on the circle piece is pegged graft corresponding to the slot for the wheel body drives the grafting circle piece and rotates when rotating, avoids bull stick and circle piece groove direct contact to produce great friction then and the rotation of wheel body not smooth and easy.

The present invention may be further configured in a preferred embodiment as: the two insertion blocks are oppositely arranged around the axis of the rotating rod, and the two insertion grooves are also formed around the axis of the round block groove and correspond to the two insertion blocks.

Through adopting above-mentioned technical scheme for the connection between wheel body and the grafting circle piece is more stable, avoids the stress that the nexus department bore between monolithic inserted block and the grafting circle piece too big, thereby leads to the inserted block easy and the grafting between the circle piece fracture.

The present invention may be further configured in a preferred embodiment as: the slot includes closely laminating in the straight flute of inserted block and length direction parallel to wheel body axis direction, communicates in the straight flute and keep away from the one end opening width of straight flute and be greater than the big open groove of the width of straight flute, and the interval of big open groove apart from the wheel body central point is greater than the interval of straight flute apart from the wheel body central point.

Through adopting above-mentioned technical scheme, can insert the piece in big open groove along wheel body axis direction more easily, insert the piece and enter into among the straight flute and hug closely in the inner wall of straight flute along the shoes inner wall in big open groove for it is more convenient when pegging graft corresponding to the piece groove of grafting circle piece.

The present invention may be further configured in a preferred embodiment as: the universal shell is characterized in that a protective cover groove is formed in an opening part for exposing the screw head, a protective cover capable of protecting the screw head is inserted into the protective cover groove, and a fixing screw in threaded connection with the protective cover groove penetrates through the protective cover.

Through adopting above-mentioned technical scheme, the visor can avoid the screw head to expose and receive great corruption or have more impurity to enter into universal shell and supply the exposed opening of screw head, influence the rotation of screw head, ensure that the screw head rotates comparatively smoothly to carry out the change work of wheel body.

The present invention may be further configured in a preferred embodiment as: the wheel body comprises an outer ring layer made of polypropylene, a middle ring layer which is attached to the inner wall of the outer ring layer and made of a thermoplastic elastomer, and an inner ring layer which is attached to the inner ring of the middle ring layer, provided with an inserting groove and made of ABS resin.

Through adopting above-mentioned technical scheme for the outer lane layer and the inner circle layer of wheel body all possess better wearability, make the live time of wheel body longer, need not change frequently, the intermediate level possesses better elasticity simultaneously, makes the wheel body can reduce the degree of rocking that makes case and bag appear because of the road surface unevenness at the in-process that drives case and bag and removes, makes the wheel body possess certain shock attenuation performance.

To sum up, the utility model discloses a following at least one useful technological effect:

when the wheel body is used for a long time and is worn greatly, the two rotating rods can be driven by the connecting rod driving mechanism to be far away from the wheel body, so that the wheel body is not spliced and fixed by the rotating rods any more, the wheel body can be conveniently replaced, the whole mounting shell and the universal shell are not required to be integrally replaced, convenience is brought, and resources can be saved;

make the outer lane layer and the inner circle layer of wheel body all possess better wearability for the live time of wheel body is longer, need not change frequently, and the intermediate level possesses better elasticity simultaneously, makes the wheel body can reduce the degree of rocking that makes case and bag appear because of the road surface unevenness at the in-process that drives case and bag and removes, makes the wheel body possess certain damping performance.

Drawings

FIG. 1 is a main structure view of the present invention;

FIG. 2 is a side view, partially in section, of the gimbal housing and wheel body;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 2;

fig. 5 is a schematic structural view of the wheel body.

In the figure, 1, a housing is installed; 11. a round block groove; 12. a slot; 13. a straight groove; 14. a large open slot; 15. a protective cover slot; 16. a protective cover; 17. fixing screws; 18. an outer race layer; 19. a middle ring layer; 2. a universal housing; 21. an inner ring layer; 22. a rotating rod groove; 23. a connecting rod slot; 24. a mechanism groove; 3. a wheel body; 31. a rotating rod; 32. a connecting rod; 33. opposite racks; 34. opposite gears; 35. a worm gear; 36. a worm; 37. a screw head; 38. inserting a round block; 39. and (5) inserting the blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an universal wheel of high strength, including dismantling the installation shell 1 of connecting in four angle departments of case and bag bottom, installation shell 1 bottom surface is connected with universal shell 2 that is Z shape around vertical axis rotation, and universal shell 2 is kept away from the opening part of installation shell 1 and is installed wheel body 3, and wheel body 3 can rotate around self axis, and universal shell 2 installs the wheel body disassembly body that can make wheel body 3 break away from universal shell 2.

Referring to fig. 2 and 3, the wheel dismounting mechanism includes two rotating rod grooves 22 respectively opened at two opposite side surfaces of an opening of the universal housing 2 along an axial direction of the wheel body 3, the two rotating rod grooves 22 are slidably connected with a rotating rod 31 capable of being inserted at a central point of an end surface of the wheel body 3 along a length direction thereof, the universal housing 2 is internally provided with L-shaped link grooves 23 respectively communicated with the two rotating rod grooves 22, one end of the rotating rod 31 positioned in the rotating rod groove 22 is fixedly connected with a link rod 32 capable of being slidably connected with the link groove 23 along a length direction of the rotating rod 31, the link rod 32 is L-shaped, the universal housing 2 is internally provided with a link rod driving mechanism capable of making the two link rods 32 move in opposite directions, the link rod driving mechanism includes two opposite racks 33 respectively fixedly connected to adjacent ends of the two link rods 32, the universal housing 2 is provided with mechanism grooves 24 communicated with the two link grooves 23, the two opposite racks 33 are engaged with opposite gears 34 rotatably connected in the, install in mechanism groove 24 and drive gear wheel slewing mechanism that gear wheel 34 pivoted in opposite directions, gear wheel slewing mechanism includes through fixed connection in gear wheel 35 in opposite directions 34, worm wheel 35 meshes has the worm 36 of rotating connection in mechanism groove 24, worm 36 is kept away from worm wheel 35 one end and is worn to establish and expose in universal shell 2, worm 36 exposes the coaxial fixedly connected with of 2 one end of universal shell and is the screw head 37 of hexagon socket head form, screw head 37 head slightly retracts into universal shell 2 in, universal shell 2 supplies the exposed opening part of screw head 37 to have seted up protection cover groove 15, combine shown in fig. 1, protection cover groove 15 is pegged graft and is had and is circular shape visor 16, visor 16 wears to be equipped with the fixed screw 17 of threaded connection in protection cover groove 15 bottom surface.

Referring to fig. 2 and 4, the round block groove 11 with the circular cross section is coaxially provided on the end faces of the two ends of the wheel body 3, two slots 12 are provided on the inner wall of the round block groove 11, the two slots 12 are arranged relatively around the axis of the round block groove 11, the slots 12 include a large opening groove 14 with a large opening at one end and a small opening at the other end, the large opening of the large opening groove 14 is communicated with the outer wall of the round block groove 11, the small opening of the large opening groove 14 is communicated with a straight groove 13 arranged on the inner wall of the round block groove 11, the opening width of the straight groove 13 is consistent with the small opening of the large opening groove 14, the length direction of the straight groove 13 is parallel to the axis direction of the wheel body 3, the end part of the rotating rod 31 close to the wheel body 3 is coaxially rotatably connected with an inserting round block 38 connected to the round block groove 11 in the axis direction of the wheel body 3, and the outer wall of the inserting round block 38 is fixedly connected with.

Referring to fig. 5, the wheel body 3 includes an outer ring layer 18 made of polypropylene and having a circular ring shape, a middle ring layer 19 made of a thermoplastic elastomer and having a circular ring shape is bonded to an inner ring of the outer ring layer 18, and a circular inner ring layer 21 made of ABS resin is bonded to an inner ring of the middle ring layer 19.

The implementation principle of the embodiment is as follows: when the wheel body 3 is worn out greatly, the fixing screw 17 is screwed off, the protective cover 16 is taken down, the screw head 37 is rotated through a hexagonal wrench, then two rotating rods 31 are far away from each other until the wheel body 3 can be taken down, then the round block groove 11 of one end surface of the new wheel body 3 is plugged into the plugging round block 38 corresponding to one rotating rod 31, and the screw head 37 is reversely rotated again, so that the two rotating rods 31 are close to each other until the plugging block 39 enters the straight groove 13, and the replacement work of the wheel body 3 is completed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a universal wheel of high strength, is including installing shell (1) of locating four angles departments in case and bag bottom, rotate around vertical axis and connect in universal shell (2) of installing shell (1), locate universal shell (2) bottom opening part and around horizontal axis pivoted wheel body (3), locate universal shell (2) and make wheel body (3) can carry out the wheel body disassembly body of dismantling, its characterized in that: the wheel body dismounting mechanism comprises two rotating rods (31) which are respectively connected with the universal shell (2) towards the two side faces of the wheel body (3) in a sliding mode along the direction of the rotating axis of the wheel body (3), connecting rods (32) which are respectively fixedly connected with the two rotating rods (31) and located at one end of the universal shell (2), and a connecting rod driving mechanism which is arranged on the universal shell (2) and drives the two connecting rods (32) to move in opposite directions, wherein the rotating rods (31) are connected with the central axis of the wheel body (3) in an inserting mode and in a rotating mode.

2. A high strength castor according to claim 1, wherein: the two connecting rods (32) have height difference in the vertical direction, and the connecting rod driving mechanism comprises two opposite racks (33) which are fixedly connected to the close upper ends of the two connecting rods (32) respectively, opposite gears (34) which are rotatably connected to the inside of the universal shell (2) and meshed with the two opposite racks (33), and a gear rotating mechanism which is arranged on the universal shell (2) and drives the opposite gears (34) to rotate.

3. A high strength castor according to claim 2, wherein: the gear rotating mechanism comprises a worm wheel (35) which is coaxially and fixedly connected to the opposite gear (34), a worm (36) which is meshed with the worm wheel (35) and is rotatably connected to the universal shell (2), and a screw head (37) which is coaxially and fixedly connected to one end of the universal shell (2) exposed out of the worm (36).

4. A high strength castor according to claim 3, wherein: the rotary rod (31) is located one end of the wheel body (3) and is rotatably connected with the inserting round block (38), the inserting block (39) is fixedly connected with the outer wall of the circumference of the inserting round block (38), the wheel body (3) is provided with a round block groove (11) for inserting the inserting round block (38), and the horizontal inner wall of the round block groove (11) is provided with a slot (12) for inserting the inserting block (39).

5. A high strength castor according to claim 4, wherein: the two insertion blocks (39) are arranged oppositely around the axis of the rotating rod (31), and the two insertion grooves (12) are also formed around the axis of the round block groove (11) and correspond to the two insertion blocks (39).

6. A high strength castor according to claim 5, wherein: the slot (12) comprises a straight groove (13) which is tightly attached to the insert block (39) and the length direction of which is parallel to the axis direction of the wheel body (3), and a large opening groove (14) which is communicated with the straight groove (13) and is far away from the straight groove (13), wherein the opening width of one end of the large opening groove is larger than the width of the straight groove (13), and the distance between the large opening groove (14) and the central point of the wheel body (3) is larger than the distance between the straight groove (13) and the central point of the wheel body (3).

7. A high strength castor according to claim 6, wherein: the universal casing (2) supplies the exposed opening part of screw head (37) to offer visor groove (15), and visor groove (15) are pegged graft and are had visor (16) that can protect screw head (37), and visor (16) are worn to be equipped with threaded connection in visor groove (15) fixed screw (17).

8. A high strength castor according to claim 7, wherein: the wheel body (3) comprises an outer ring layer (18) made of polypropylene, a middle ring layer (19) which is attached to the inner wall of the outer ring layer (18) and made of a thermoplastic elastomer, and an inner ring layer (21) which is attached to the inner ring of the middle ring layer (19), provided with an inserting groove (12) and made of ABS resin.