CN2933921Y

CN2933921Y - Directional movable caster wheel

Info

Publication number: CN2933921Y
Application number: CN 200620085075
Authority: CN
Inventors: 余惠南
Original assignee: CAI HAIRANG
Current assignee: CAI HAIRANG
Priority date: 2006-05-30
Filing date: 2006-05-30
Publication date: 2007-08-15
Anticipated expiration: 2016-05-30

Abstract

A truckle can move directionally, comprising wheels, wheel racks and a rotating shaft. The wheel can be installed on the wheel rack by rotating. The rotating shaft is installed vertically with low end connected with the wheel rack. A braking piece and a directional piece are installed on the rotating shaft. The braking piece is arranged above the wheel and can slide upward and downward. The braking piece can be installed on the rotating shaft by rotating. The braking piece is assembled on the wheel rack that can slide upward and downward while can't rotate. A primary spring that can push the braking piece upward is arranged under the braking piece. The directional piece is arranged above the braking piece. The directional piece is installed on the rotating shaft that can slide upward and downward while can't rotate. Teeth that can mesh each other are arranged on the braking piece and directional piece face by face. A braking arm that can slide upward and downward is arranged on the rotating shaft. The bottom of the braking arm is connected with the directional piece. The braking arm is provided with a cam gear that can push the braking arm downward and a secondary spring that can push the braking arm upward. The truckle of the utility model not only can move freely, brake conveniently, but also move directionally, therefore, the truckle can be operated conveniently.

Description

Orientable mobile caster wheel

Technical field

The utility model relates to go-cart or other can promote the utensil caster wheel, specifically is meant a kind ofly not only to can move freely, can brake, also orientable mobile caster wheel.

Background technology

Castor is widely used in the hand barrow of airport, station, harbour, hotel and the hand propelled devices such as care bed of hospital, the tradition caster wheel is braking and orienting device not, its braking and orientation are realized by hand by the operator usually, or brake equipment is set in other position of these hand propelled devices, so often cause braking and directed inaccurate, dumb, bring many unnecessary troubles.The braking of comparatively new-type hand propelled device, the directed castor that relies on are usually realized easier control.

For example, disclose for Chinese patent CN01248387.7 number " a kind of have braking function and directed control caster wheel ", comprise permanent seat, wheel seat, wheel body and brake equipment, permanent seat is fixed on the bottom surface of carrier, and wheel seat is hubbed on the permanent seat, and wheel body is hubbed on the wheel seat, brake equipment comprises a brake component, brake component has a detent and a clicking section, and braking part pivot is located on the wheel seat, and the clicking section is installed on the detent.The utility model can make wheel seat freely rotate, and also can reach the rotation of restriction wheel body, has the function of brake, also has restriction wheel seat relative fixed seat simultaneously and rotates.

For another example, a kind of " self-orienting caster that is used for moving furniture etc. " disclosed for Chinese patent CN200410089879.8 number, it is made of at least one wheel that can rotate on axle, this is taken turns by a seat that is provided with the supporting of a vertical depression and is driven by on even keel, this depression is open upwards and is offset vertically with respect to axle, wherein, the pivot castor, the pivot that is provided with first is rotatable, and be provided with a second portion that can be inserted in of piece of furniture, second portion has end bar that a diameter reduces so that form a shoulder, one axle sleeve is fixed on the bar vertically, and form a circular groove, it is used for not having play ground to hold a resilient ring, and by expansion, this resilient ring is pressed against on the wall of described depression.

The utility model content

The utility model aims to provide and a kind ofly is different from that prior art constructions is stable, the orientable mobile caster wheel of control comfort.

The utility model adopts following technical scheme: orientable mobile caster wheel, comprise wheel, wheel carrier and S. A., and wheel is rotatably installed on the wheel carrier, and S. A. is positioned at vertical direction, and its bottom is articulated on the wheel carrier; Be set with a brake component and a directed part on this S. A., this brake component is positioned at the top of wheel, can slide up and down and be set on the S. A. rotationally, and can slide up and down but assembling un-rotatably with wheel carrier, its below is provided with first spring that it is upwards promoted; This orientation part is positioned at the top of brake component, can slide up and down but is set in un-rotatably on the S. A., and the opposite face of this brake component and this orientation part is provided with can intermeshing tooth; S. A. is provided with the brake rod that can slide up and down, and this brake rod bottom links to each other with aforementioned directed part, and this brake rod is provided with a cam gear that it can be pushed away downwards, and is provided with second spring that it upwards can be pushed away.Generally, S. A. can freely rotate relative to wheel carrier, and promptly wheel can move freely towards any direction; When making the cam gear action by external force, the elastic force that brake rod overcomes second spring downwards moves downward, and the drive locations together moves downward, the tooth of its lower surface and the tooth of brake component upper surface are intermeshed, thereby S. A. can't be rotated relative to wheel carrier, realized that promptly the orientation of wheel moves; When brake rod continues to move down, drive directed part and suppress moving part downwards, brake component and wheel are conflicted, and realize the braking to wheel.

Aforementioned orientable mobile caster wheel, eccentric position in relative wheel on its wheel carrier is provided with opening U-lag up, this U-lag bottom is provided with pivot connecting seat, the opening part of this U-lag is provided with pivot connecting seat on, the bottom of described S. A. is hubbed on this in the pivot connecting seat and this time pivot connecting seat, thus, S. A. can stably articulate with wheel carrier.

Further, described S. A. is a hollow body, described brake rod is slidedly arranged in this S. A., described brake component, directed part all are positioned at this U-lag, this brake rod bottom passes this S. A. sidewall by a bearing pin and links to each other with directed part, the S. A. sidewall is provided with and supplies this bearing pin restrictedly in the bar hole that wherein slides up and down, and described first spring housing that brake component is upwards promoted is located on this S. A., and is located between this brake component bottom surface and the U-lag bottom.By the connection of this bearing pin, brake rod and locations all can't rotate with respect to S. A., and only can slide up and down with respect to this S. A. in the length range of this bar hole.

One side of described brake component is provided with a chute, a side of described U-lag is embedded in this chute slidably, also be provided with on this side of this U-lag and limit the spacing block set that this brake component excessively upwards slides, thus, this brake component only can move up and down within the specific limits with respect to wheel carrier, and can not rotate with respect to wheel carrier.

The first half of described interior of rotating shaft forms a diameter expansion section, the position of described brake rod in this enlarged-diameter portion is provided with a bulge loop, described second spring housing that brake rod is upwards promoted is located on this brake rod, and is located between the bottom surface of this bulge loop and this enlarged-diameter portion.Under normal conditions, this second spring is this brake rod jack-up that makes progress, and makes directed part break away from engagement with brake component, so that keep freely rotating between S. A. and the wheel carrier.

Wheel all is equipped with in two sides of described wheel seat, the inboard of each wheel is equipped with the wheel hub that a diameter dwindles, the position that described brake component bottom convexedly stretches in outside these wheel carrier both sides is provided with two brake surfaces, the side face of the shape of these two brake surfaces and two wheel hubs is suitable, and convex with the braking bar, to realize good braking.

Aforementioned orientable mobile caster wheel, can intermeshing tooth on the opposite face of its brake component and directed part be that the center becomes radial distribution with the axis of S. A..

Aforementioned orientable mobile caster wheel, its cam gear comprises a cam and two pivot connecting seats, described S. A. upper portion side wall is provided with two pivot connecting seat fitting recess and a cam mounting hole, the both ends of the surface of this cam convex with drive-connecting shaft, this cam is packed into from this cam mounting hole, and two pivot connecting seats are equipped with pivoted hole, is embedded by two pivot connecting seat fitting recess respectively, and being set in the both ends of cam drive-connecting shaft respectively by its pivoted hole, the center of this cam drive-connecting shaft is provided with the drive hole of a multi-edge column-shaped.Thus, cam gear can assemble with S. A. easily.

By above-mentioned description to the utility model structure as can be known, the utlity model has following advantage: the utility model caster wheel not only can move freely, can brake easily, also orientablely moves control comfort; Its braking and orienting device all bury in inside the parts that outwards do not protrude out, compact conformation.

Description of drawings

Fig. 1 is a perspective view of the present utility model, for show internal structure, has removed a wheel;

Fig. 2 is the perspective view of another angle of the utility model, for show internal structure, has removed a wheel;

Fig. 3 is a three-dimensional exploded view of the present utility model;

Fig. 4 is a cutaway view of the present utility model.

Specific embodiment

Below with reference to Fig. 1 to Fig. 4 specific embodiment of the utility model is described.

Present embodiment provides a kind of orientable mobile caster wheel, see figures.1.and.2, this castor comprises wheel 7, wheel carrier 6 and S. A. 1, and wheel 7 has two, is rotatably installed on the both sides of wheel carrier 6 respectively, in order to show its inner structure, removed a wheel among the figure, S. A. 1 is positioned at vertical direction, and its bottom is articulated on the wheel carrier 6, by this S. A. 1, but wheels 7 moves to all directions.

Simultaneously with reference to Fig. 3 and Fig. 4, eccentric position in relative wheel 7 on this wheel carrier 6 is provided with opening U-lag 61 up, these U-lag 61 bottoms are provided with pivot connecting seat 16, the opening part of this U-lag 61 is provided with pivot connecting seat 15 on, should go up pivot connecting seat 15 is positioned on this wheel carrier 6 by chimeric and welding with following pivot connecting seat 16, the bottom of this S. A. 1 is hubbed on this in pivot connecting seat 15 by radial bearing 151, bearing 152, be articulated in this time pivot connecting seat 16 by copper sheathing 161, thus, S. A. 1 can stably articulate with wheel carrier 6.

This S. A. 1 bottom is set with a brake component 5 and a directed part 4, this brake component 5 and this orientation part 4 all are positioned at this U-lag 61, and this brake component 5 is positioned at the top of wheel 7, the inboard of wheel 7 is provided with the wheel hub 71 that a diameter dwindles, the position that brake component 5 bottoms convexedly stretch in outside these wheel carrier 6 both sides is provided with two brake surfaces 53, and the side face of the shape of these two brake surfaces 53 and two wheel hubs 71 is suitable, and convexes with the braking bar, when brake surface 53 fits in wheel hub 71, can realize good braking.This brake component 5 can slide up and down and be set in rotationally on the S. A. 1, one side of this brake component 5 is provided with a chute 52, a side 611 of described U-lag 61 is embedded in this chute 52 slidably, also be provided with on this side 611 of this U-lag 61 and limit the spacing block set 612 that this brake component 5 excessively upwards slides, thus, this brake component 5 only can move up and down within the specific limits with respect to wheel carrier 6, and can not rotate with respect to wheel carrier 6.This S. A. 1 is arranged with first spring 8 between these brake component 5 bottoms and U-lag 61 bottoms, do not do the time spent there being external force, this first spring 8 can upwards be pushed to the extreme higher position with this brake component 5, uses itself and wheel hub 71 to keep certain distance, uses wheel 7 free to rotate.

This S. A. 1 is a hollow body, can slide up and down to be provided with a brake rod 3 in its cavity, the bottom of this brake rod 3 passes this S. A. 1 sidewall by a bearing pin 33 and links to each other with directed part 4, the bottom of this brake rod 3 is provided with for this bearing pin 33 and plugs fixing hole 32, this orientation part 4 also is provided with the hole 42 of pegging graft and fixing for these bearing pin 33 two ends, S. A. 1 cavity sidewalls is provided with for this bearing pin 33 restrictedly in the bar hole 14 that wherein slides up and down, connection by this bearing pin 33, brake rod 3 all can't rotate with respect to S. A. 1 with locations 4, and only can slide up and down with respect to this S. A. 1 in the length range of this bar hole 14.This orientation part 4 is positioned at the top of brake component 5, and the opposite face of this brake component 5 and this orientation part 4 is provided with can intermeshing

tooth

51,41, and this

tooth

51,41 is that the center becomes radial distribution with the axis of S. A. 1.Hence one can see that, and when directed part 4 made

tooth

51,41 engagements to lower slider, S. A. 1 can't rotate relative to wheel carrier 6.

With reference to Fig. 4, the first half of S. A. 1 internal cavities forms a diameter expansion section 10, the position of described brake rod 3 in this enlarged-diameter portion 10 is provided with a bulge loop 31, and this brake rod 3 is arranged with second spring 9 between the bottom surface of these bulge loop 31 belows and this enlarged-diameter portion 10.Under normal conditions, this second spring 9 is this brake rod 3 jack-up upwards, makes directed part 4 break away from engagement with brake component 5, so that keep freely rotating between S. A. 1 and the wheel carrier 6.

This S. A. 1 top is provided with a cam gear that brake rod 3 can be pushed away downwards, with reference to Fig. 1 and Fig. 3, this cam gear comprises a cam 2 and two pivot connecting seats 23,24, described S. A. 1 upper portion side wall is provided with two pivot connecting seat fitting recess 11,12 and cam mounting holes 13, the both ends of the surface of this cam 2 convex with drive-connecting shaft 21, this cam 2 is packed into from this cam mounting hole 13, two pivot connecting seats 23,24 are respectively equipped with pivoted hole 231,241, and respectively by two pivot connecting seat fitting recess 11,12 embed, respectively by its pivoted hole 231,241 are set in the both ends of cam drive-connecting shaft 21, so that cam can promote the brake rod 3 of its below by its drive-connecting shaft 21 for axle rotates, and, the center of this cam drive-connecting shaft 21 is provided with the drive hole 22 of a multi-edge column-shaped, can be used for driving this cam 2 by external force and rotates.Be respectively equipped with a lasso 251,252 at the outer peripheral face of this S. A. 1 corresponding to top, the bottom of this pivot connecting seat 23,24, so that pivot connecting seat 23,24 is positioned in the S. A. 1.

Generally, S. A. 1 can freely rotate relative to wheel carrier 6, and promptly wheel 7 can move freely towards any direction; When making the cam gear action by external force, cam 2 is to side rotation and reach the vertex of cam 2 in this side, the elastic force that brake rod 3 overcomes second spring 9 downwards moves downward, and drive locations 4 together moves downward, the tooth 41 of its lower surface and the tooth 51 of brake component 5 upper surfaces are intermeshed, thereby S. A. 1 can't be rotated relative to wheel carrier 6, realized that promptly the orientation of wheel 7 moves; When cam 2 when opposite side rotates and reach the vertex of cam 2 in this side, brake rod 3 move down one bigger apart from the time, drive directed part 4 compacting moving parts 5 downwards, the elastic force that brake component 5 overcomes first spring 8 moves downward, conflict with the wheel hub 71 of wheel 7, realize braking wheel 7.

Above-mentioned only is a specific embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.

Claims

1, orientable mobile caster wheel is characterized in that: comprise wheel, wheel carrier and S. A., wheel is rotatably installed on the wheel carrier, and S. A. is positioned at vertical direction, and its bottom is articulated on the wheel carrier; Be set with a brake component and a directed part on this S. A., this brake component is positioned at the top of wheel, can slide up and down and be set on the S. A. rotationally, and can slide up and down but assembling un-rotatably with wheel carrier, its below is provided with first spring that it is upwards promoted; This orientation part is positioned at the top of brake component, can slide up and down but is set in un-rotatably on the S. A., and the opposite face of this brake component and this orientation part is provided with can intermeshing tooth; S. A. is provided with the brake rod that can slide up and down, and this brake rod bottom links to each other with aforementioned directed part, and this brake rod is provided with a cam gear that it can be pushed away downwards, and is provided with second spring that it upwards can be pushed away.

2, orientable mobile caster wheel as claimed in claim 1, it is characterized in that: the eccentric position in relative wheel on the described wheel carrier is provided with opening U-lag up, this U-lag bottom is provided with pivot connecting seat, the opening part of this U-lag is provided with pivot connecting seat on, and the bottom of described S. A. is hubbed on this in the pivot connecting seat and this time pivot connecting seat.

3, orientable mobile caster wheel as claimed in claim 2, it is characterized in that: described S. A. is a hollow body, described brake rod is slidedly arranged in this S. A., described brake component, directed part all are positioned at this U-lag, this brake rod bottom passes this S. A. sidewall by a bearing pin and links to each other with directed part, the S. A. sidewall is provided with for this bearing pin restrictedly in the bar hole that wherein slides up and down, described first spring housing that brake component is upwards promoted is located on this S. A., and is located between this brake component bottom surface and the U-lag bottom.

4, orientable mobile caster wheel as claimed in claim 3, it is characterized in that: a side of described brake component is provided with a chute, a side of described U-lag is embedded in this chute slidably, also is provided with on this side of this U-lag to limit the spacing block set that this brake component excessively upwards slides.

5, orientable mobile caster wheel as claimed in claim 3, it is characterized in that: the first half of described interior of rotating shaft forms a diameter expansion section, the position of described brake rod in this enlarged-diameter portion is provided with a bulge loop, described second spring housing that brake rod is upwards promoted is located on this brake rod, and is located between the bottom surface of this bulge loop and this enlarged-diameter portion.

6, orientable mobile caster wheel as claimed in claim 3, it is characterized in that: wheel all is equipped with in two sides of described wheel seat, the inboard of each wheel is equipped with the wheel hub that a diameter dwindles, the position that described brake component bottom convexedly stretches in outside these wheel carrier both sides is provided with two brake surfaces, the side face of the shape of these two brake surfaces and two wheel hubs is suitable, and convexes with the braking bar.

7, orientable mobile caster wheel as claimed in claim 1 is characterized in that: can intermeshing tooth on the opposite face of described brake component and directed part be that the center becomes radial distribution with the axis of S. A..

8, orientable mobile caster wheel as claimed in claim 1, it is characterized in that: described cam gear comprises a cam and two pivot connecting seats, described S. A. upper portion side wall is provided with two pivot connecting seat fitting recess and a cam mounting hole, the both ends of the surface of this cam convex with drive-connecting shaft, this cam is packed into from this cam mounting hole, two pivot connecting seats are equipped with pivoted hole, embed by two pivot connecting seat fitting recess respectively, and being set in the both ends of cam drive-connecting shaft respectively by its pivoted hole, the center of this cam drive-connecting shaft is provided with the drive hole of a multi-edge column-shaped.