CN215204309U - Novel good truckle of stability - Google Patents

Abstract

The utility model relates to a novel good truckle of stability, including the truckle main part, the truckle main part includes the casing, rotationally locates the gyro wheel of casing, the casing top rotationally is equipped with rotates the seat, be equipped with first bearing in the casing, first bearing is connected in the casing and is rotated the seat, be equipped with the fastener of wearing to establish rotation seat and first bearing on the casing, the fastener top is the head, the head top is equipped with frustum portion, the cross-sectional area of frustum portion reduces from top to bottom, rotate the seat top and locate the card portion of putting that corresponds with frustum portion. The utility model relates to a truckle field, during the installation, rotate seat and frustum portion zonulae occludens, be difficult to get into dust, it is fixed effectual to screw, and the truckle main part turns to and is difficult for rocking, and when the fastener was dismantled, easy demoulding is difficult to appear the condition that the card was put, is convenient for maintain, and the head of fastener is located card portion of putting, and occupation space has not been solved universal castor poor stability, has maintained inconvenient technical problem.

Description

Novel good truckle of stability

Technical Field

The utility model relates to a truckle field especially relates to a novel good truckle of stability.

Background

Current universal caster adopts the bearing to realize turning to, be equipped with the fastener of wearing to establish fixed rotation seat and bearing on the universal caster, the fastener is arranged the head of rotating the seat in including the card usually, wear to locate the connecting portion of bearing, threaded connection locks in the locking portion of retaining member, locking portion and retaining member threaded connection, make universal caster can dismantle, convenient to maintain, during the fastener installation, the head card is arranged in and is rotated the seat, usually the head bottom surface supports and leans on in rotating the seat top surface, at this moment, head and rotation get into dust or impurity easily between the seat, when the fastener is dismantled, dust or impurity make the fastener dismantle the difficulty, damage the fastener even, influence the dismouting of fastener, this kind of structure, when universal caster rotates, the fastener probably takes place to rock, influence the stability that turns to.

SUMMERY OF THE UTILITY MODEL

Therefore, to foretell problem, the utility model provides a neotype truckle that stability is good. The universal caster solves the technical problems of poor stability and inconvenient maintenance of the universal caster.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel good truckle of stability, includes the truckle main part, the truckle main part includes the casing, rotationally locates the gyro wheel of casing, the casing top rotationally is equipped with rotates the seat, be equipped with first bearing in the casing, first bearing is connected in the casing and is rotated the seat, be equipped with the fastener of wearing to establish rotation seat and first bearing on the casing, the fastener top is the head, the head top is equipped with frustum portion, the cross-sectional area of frustum portion reduces from top to bottom, rotate the seat top and locate the card portion of putting that corresponds with frustum portion.

Further:

the fastener bottom is locking portion, the head lateral wall is located frustum portion below and is equipped with first thread, first thread threaded connection rotates the seat, locking portion lateral wall is equipped with the second thread, second thread threaded connection locking piece, first thread with the reverse setting of second thread forms positive and negative thread.

The utility model discloses a fastener, including first bearing, fastener, head, locking portion, first connecting portion, second connecting portion, first connecting portion and second connecting portion, be located the head and lock between the portion, first connecting portion lateral wall is equipped with annular ring portion, the internal diameter of first bearing is greater than the internal diameter of second bearing, first bearing inner wall rotationally connects in the ring portion lateral wall, ring portion bottom and second bearing top are supported each other and are leaned on.

The ring part is at least one shaft sleeve or at least one gasket.

The shaft sleeve or the washer is made of manganese steel.

And a fourth bearing is rotatably arranged below the second bearing on the shell.

The fourth bearing is a deep groove ball bearing.

The top of the shell is provided with a first bearing groove, the top of the rotating seat is provided with a second bearing groove corresponding to the first bearing groove, and a third bearing is arranged between the first bearing groove and the second bearing groove.

The third bearing is a thrust bearing.

By adopting the technical scheme, the beneficial effects of the utility model are that:

the head of the fastener of the utility model is provided with the frustum part, when the fastener is installed, the rotating seat is tightly connected with the frustum part, dust is not easy to enter, the screwing and fixing effect is good, the caster main body is not easy to shake when turning, the conical structure can guide the fastener and the pressure bearing to improve the concentricity, the fastener is easy to demould when being disassembled, the clamping condition is not easy to occur, the fastener is convenient to maintain, and the head of the fastener is positioned in the clamping part and does not occupy space; furthermore, a first thread and a second thread of the fastener are reversely arranged to form a positive thread and a negative thread, the two threads are restricted with each other, so that the fastener cannot loosen, the top of the fastener is connected with the rotating seat through the first thread, the fastener is fixed up and down through the threads, the fastener is not easy to deform, the rotating seat is not easy to shake, the universal caster is more stable to rotate, the universal caster is prevented from shaking to be worn or even damaged, the service life of the universal caster is prolonged, when the fastener is disassembled and assembled, when the fastener rotates, the friction between the fastener and the rotating seat is reduced, and the universal caster is simple and practical; furthermore, through the paired use of the first bearing and the second bearing, the two bearings share the axial load and the radial load mutually, the clamping condition can not occur during rotation, the steering is flexible, the acting force on the first bearing and the second bearing is reduced, and the service life of the caster is prolonged; the inner wall of the first bearing is rotatably connected to the outer side wall of the ring part, the bottom of the ring part and the top of the second bearing are abutted against each other, and the play of the second bearing is adjusted by adjusting the length of the ring part or increasing or decreasing the gaskets; furthermore, the third bearing can share the pressure of the rotating seat on the first bearing, the third bearing shares the axial load, and the first bearing and the third bearing are matched for use, so that the steering of the steering seat is more flexible; furthermore, due to the arrangement of the fourth bearing, the fourth bearing mainly bears radial load and shares the radial load borne by the second bearing, so that the caster wheel is more flexible and stable in rotation, the second bearing is prevented from being damaged by large radial force, and the compression resistance and flexibility of the caster wheel are improved; furthermore, when the ring part adopts a shaft sleeve or a gasket, a proper amount of sliding friction exists between the ring part and the first connecting part, and a proper amount of sliding friction exists between the ring part and the top of the second bearing, so that the first connecting part can be well protected, the fastener can be protected, the shaft sleeve or the gasket is made of manganese steel, the manganese steel is good in wear resistance, friction is reduced, and the service life is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

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

FIG. 3 is a schematic structural view of the fastener;

fig. 4 is a cross-sectional view of another configuration of the present invention.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 3, the present embodiment provides a novel caster with good stability, which includes a caster body, the caster body includes a housing 1 and a roller 2 rotatably disposed on the housing 1, a rotating base 3 is rotatably disposed on a top of the housing 1, a first bearing 4 is disposed in the housing 1, the first bearing 4 is connected to the housing 1 and the rotating base 3, a second bearing 5 is disposed below the first bearing 4 in the housing 1, an inner diameter of the first bearing 4 is larger than an inner diameter of the second bearing 5, a fastening member 6 penetrating the rotating base 3, the first bearing 4 and the second bearing 5 is disposed on the housing 1, the fastening member 6 includes a head 61, a first connecting portion 62, a second connecting portion 63 and a locking portion 64 sequentially disposed from top to bottom, a frustum portion 611 is disposed on a top of the head 61, a cross-sectional area of the frustum portion 611 is reduced from top to bottom, a locking portion 30 corresponding to the frustum portion 611 is disposed on a top of the rotating base 3, the outer side wall of the head part 61 is positioned below the conical part 611, a first thread 610 is connected with the rotating base 3 in a threaded manner, a second thread 640 is arranged on the outer side wall of the locking part 64, the second thread 640 is connected with a locking part 65 in a threaded manner, the first thread 610 and the second thread 640 are arranged in a reverse direction to form a positive thread and a negative thread, the first connecting part 62 and the second connecting part 63 are cylindrical bodies, the outer side wall of the first connecting part 62 is provided with an annular ring part 60, the ring part 60 is a shaft sleeve, and the shaft sleeve is detachably sleeved on the outer side wall of the fastening part 6; the inner wall of the first bearing 4 is rotatably connected with the outer side wall of the ring part 60, and the bottom of the ring part 60 and the top of the second bearing 5 abut against each other. The locker 65 is screw-coupled with the locker portion 64. The top of the shell 1 is provided with a first bearing groove 11, the top of the rotating seat 3 is provided with a second bearing groove 31 corresponding to the first bearing groove 11, a third bearing 7 is arranged between the first bearing groove 11 and the second bearing groove 31, and the first bearing 4 is positioned in a ring of the third bearing 7. The housing 1 is rotatably provided with a fourth bearing 8 below the second bearing 5, and the second connecting portion 63 is sleeved with the second bearing 5 and the fourth bearing 8.

The conical table part of the head of the fastener can be provided with an annular boss, and the top of the corresponding rotating seat is provided with a corresponding concave clamping part for limiting the axial fixing position of the fastener.

Above-mentioned also can have the clearance between ring portion 60 bottom and the second bearing 5 top, through increase and decrease gasket adjusting bearing 5's play, the utility model discloses also can not set up ring portion 60, when not setting up ring portion 60, the play of adjusting bearing 5 is adjusted through the locking moment of torsion of adjustment locking portion 65, specifically sets up as the circumstances.

The shaft sleeve can be replaced by a gasket, and can be made of manganese steel materials or other wear-resistant materials, which are well-known materials and are not described in detail herein.

The first bearing 4 and the second bearing 5 are both tapered roller bearings, the third bearing 7 is a thrust bearing, the fourth bearing 8 is a deep groove ball bearing, and may be other bearings, which are well known components and will not be described herein again.

The locking member 65 may also be snap-fit or otherwise connected to the fastening member 6, as is well known in the art and will not be described further herein.

The ring portion 60 can be integrally formed with the first connecting portion 62, as shown in fig. 4, friction is generated between the first bearing 4 and the fastening member 6 due to the structure, a proper amount of friction is generated between the top of the second bearing 5 and the fastening member 6, and the wear-resistant effect is poor and is set according to the situation.

The utility model discloses also can not set up second bearing 5, third bearing 7 and fourth bearing 8, this kind of structure, crushing resistance and stability variation specifically set up according to the condition.

The utility model discloses a working method is:

the utility model discloses fastener 6's head 61 has frustum portion 611, during the installation, rotates seat 3 and frustum portion 611 zonulae occludens, is difficult to get into dust, screws fixedly effectual, and when the truckle main part turned to, is difficult for rocking, and when fastener 6 was dismantled, easy demoulding was difficult to appear the condition that the card put, is convenient for maintain, and fastener 6's head 61 is located card portion 30, occupation space not. When the caster main body turns, the first thread 610 and the second thread 640 of the fastening piece 6 are reversely arranged to form positive and negative threads, the two threads are restricted with each other, so that the fastening piece 6 cannot become loose, the top of the fastening piece 6 is connected with the rotating seat 3 through the first thread 610, so that the fastening piece 6 is fixed up and down through the threads, the rotating seat 3 is not easy to rock, so that the universal caster rotates more stably, the first bearing 4, the second bearing 5, the third bearing 7 and the fourth bearing 8 share axial load and radial load with each other, the compression resistance and the stability of the caster main body are improved, meanwhile, the ring part 60 can prevent the first bearing 4 from rocking left and right and the second bearing 5 from rocking up and down, the fastening piece 6 and the first bearing 4 are prevented from rubbing, the fastening piece 6 and the top of the second bearing 5 are prevented from rubbing, the caster turns more stably, the service lives of the first bearing 4 and the second bearing 5 are prolonged, is simple and practical.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides a novel good truckle of stability, includes the truckle main part, the truckle main part includes the casing, rotationally locates the gyro wheel of casing, the casing top rotationally is equipped with rotates seat, its characterized in that: be equipped with first bearing in the casing, first bearing is connected in the casing and is rotated the seat, be equipped with the fastener of wearing to establish rotation seat and first bearing on the casing, the fastener top is the head, the head top is equipped with frustum portion, the cross-sectional area of frustum portion reduces from top to bottom, rotate the card portion of putting that corresponds with frustum portion and locate at the seat top.

2. The novel caster with good stability as claimed in claim 1, wherein: the fastener bottom is locking portion, the head lateral wall is located frustum portion below and is equipped with first thread, first thread threaded connection rotates the seat, locking portion lateral wall is equipped with the second thread, second thread threaded connection locking piece, first thread with the reverse setting of second thread forms positive and negative thread.

3. The novel caster with good stability as claimed in claim 2, wherein: the utility model discloses a fastener, including first bearing, fastener, head, locking portion, first connecting portion, second connecting portion, first connecting portion and second connecting portion, be located the first bearing below in the casing, the second bearing is worn to establish by the fastener, the fastener still includes first connecting portion, the second connecting portion that set up from top to bottom, first connecting portion with the second connecting portion are located between head and the locking portion, first connecting portion lateral wall is equipped with annular ring portion, the internal diameter of first bearing is greater than the internal diameter of second bearing, first bearing inner wall rotationally connects in the ring portion lateral wall, ring portion bottom and second bearing top are supported each other and are leaned on or have the clearance.

4. A novel caster with good stability as claimed in claim 3, wherein: the ring part is at least one shaft sleeve or at least one gasket.

5. The novel caster with good stability as claimed in claim 4, wherein: the shaft sleeve or the washer is made of manganese steel.

6. A novel caster with good stability as claimed in claim 3, wherein: the first bearing and the second bearing are both tapered roller bearings.

7. A novel caster with good stability as claimed in claim 3, wherein: and a fourth bearing is rotatably arranged below the second bearing on the shell.

8. The novel caster with good stability as claimed in claim 7, wherein: the fourth bearing is a deep groove ball bearing.

9. A new stable caster according to any one of claims 1 to 8, characterised in that: the top of the shell is provided with a first bearing groove, the top of the rotating seat is provided with a second bearing groove corresponding to the first bearing groove, and a third bearing is arranged between the first bearing groove and the second bearing groove.

10. The novel caster with good stability as claimed in claim 9, wherein: the third bearing is a thrust bearing.

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