CN204249726U - A kind of friction braking formula castor - Google Patents
A kind of friction braking formula castor Download PDFInfo
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- CN204249726U CN204249726U CN201420672140.9U CN201420672140U CN204249726U CN 204249726 U CN204249726 U CN 204249726U CN 201420672140 U CN201420672140 U CN 201420672140U CN 204249726 U CN204249726 U CN 204249726U
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- friction
- braking
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- support
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Abstract
A kind of friction braking formula castor, it comprises support, wheel, wheel shaft, braking direction reverser, and described support comprises for holding the braking cavity of converting mechanism and the vertical guide chute of through cavity; Wheel is arranged on the both sides of support; Described braking direction reverser comprises pressure spring, cliding seat and reversing piece, the described cylindrical shell being provided with a side opening and the circular axle bed being positioned at cylindrical shell of taking turns; The both sides of described support are provided with friction shoe, the cylinder inboard wall frictional fit of described friction shoe and wheel, or with circular axle bed frictional fit.Braking is fast, and can realize stepless brake in any position, without the need to selecting.
Description
Technical field
The utility model relates to a kind of castor, especially, relates to a kind of castor that can optionally brake.
Background technology
Currently available technology, invention and created name: a kind of castor, number of patent application 201310685539.0; A kind of castor, it comprises support and wheel, and described wheel is rotatably mounted to described support by wheel shaft, it is characterized in that, described castor also comprises stop mechanism, and described stop mechanism can stop described wheel rotate thus braked by described castor; Cliding seat, described cliding seat is set up on the bracket, and described wheel shaft is rotatably mounted on described cliding seat; Elastic component, described elastic component coordinates with described cliding seat, thus described cliding seat can be moved up or down under the effect of elastic component; And selection mechanism, by mobile described selection mechanism, thus brake described castor when castor is stressed or discharge described castor.Existing problems are: adopt the mode of tooth and tooth engagement to brake, locate inaccurate, and tooth is fragile, service life is short.
Utility model content
The purpose of this utility model is: provide a kind of friction braking formula castor, and it has direct friction braking, and action is fast, long service life.
The utility model is achieved in that a kind of friction braking formula castor, and it comprises support, wheel, wheel shaft, braking direction reverser, and described support comprises for holding the braking cavity of converting mechanism and the vertical guide chute of through cavity; Wheel is arranged on the both sides of support;
Described braking direction reverser comprises pressure spring, cliding seat and reversing piece, the top of cliding seat have shank, guide groove and through guide groove through hole, reversing piece comprises body and handle, body has chute, chute comprise transverse groove and be positioned at transverse groove two ends upwards to the vertical slot of downward-extension; Wheel shaft is through vertical guide chute, through hole and chute, and pressure spring is between the roof and the top of cliding seat of cavity, and shank inserts in pressure spring; Its special character is: the described cylindrical shell being provided with a side opening and the circular axle bed being positioned at cylindrical shell of taking turns;
The both sides of described support are provided with friction shoe,
The cylinder inboard wall frictional fit of described friction shoe and wheel, or with circular axle bed frictional fit.
Described a kind of friction braking formula castor, its special character is: the external friction face that described friction shoe coordinates with cylindrical shell is circular arc, external friction face has the oil groove along axis and projection along the circumferential direction.
Described a kind of friction braking formula castor, its special character is: the inner friction surface that described friction shoe coordinates with circular axle bed is planar shaped or circular arc.
Described a kind of friction braking formula castor, its special character is: described reversing piece is limited in described support cavity by inserted block, thus makes described reversing piece can only transverse shifting.
A kind of friction braking formula of the utility model castor, owing to adopting such structure, braking is fast, and can realize stepless brake in any position, without the need to selecting.
Accompanying drawing explanation
Fig. 1 is three-dimensional exploded view of the present utility model.
Fig. 2 is one of assembly process figure of the present utility model.
Fig. 3 is assembly process figure two of the present utility model.
Fig. 4 is assembly process figure three of the present utility model.
Fig. 5 is the block diagram after assembling of the present utility model.
Fig. 6 is the cutaway view of the first state of the utility model.
Fig. 7 is the front view of the first state of the utility model.
Fig. 8 is the cutaway view of the utility model the second state.
Fig. 9 is the front view of the utility model the second state.
Figure 10 is the cutaway view of the third state of the utility model.
Figure 11 is the front view of the third state of the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, a kind of friction braking formula castor, it comprises support 1, wheel 2, wheel shaft 3, braking direction reverser, and described support 1 comprises for holding the braking cavity 12 of converting mechanism and the vertical guide chute 11 of through cavity; Wheel 2 is arranged on the both sides of support 1;
Described braking direction reverser comprises pressure spring 41, cliding seat 42 and reversing piece 43, the top of cliding seat 42 have shank 421, guide groove 422 and through guide groove through hole 423, reversing piece 43 comprises body 431 and handle 432, body 431 has chute, chute comprise transverse groove 4311 and be positioned at transverse groove two ends upwards to the upper and lower vertical slot 4312,4313 of downward-extension; Wheel shaft 3 passes vertical guide chute 11, through hole 423 and chute, pressure spring 41 is between the roof and the top of cliding seat 42 of cavity, and shank 421 inserts in pressure spring 41; Cliding seat 42 moves up and down in cavity, and reversing piece 43 is positioned at the cavity of cliding seat 42 bottom, and can sway in cavity; Wheel shaft 3 coordinates with transverse groove 4311, wheel shaft 3 coordinates with lower vertical slot 4313 with upper vertical slot 4312 or wheel shaft 3.
Describedly take turns 2 and be provided with the cylindrical shell 21 of a side opening and be positioned at the circular axle bed 22 of cylindrical shell 21;
The both sides of described support 1 are provided with friction shoe 5,
The cylindrical shell 21 inwall frictional fit of described friction shoe 5 and wheel, or friction shoe 5 and circular axle bed frictional fit.
The external friction face that described friction shoe 5 coordinates with cylindrical shell 21 is circular arc, external friction face has the oil groove 51 along axis and projection 52 along the circumferential direction.
The inner friction surface that described friction shoe 5 coordinates with circular axle bed 22 is planar shaped or circular arc.
Described reversing piece 43 is limited in described support 1 cavity by inserted block 6, thus makes described reversing piece 43 can only transverse shifting.
There is guide rail 433 both sides of described reversing piece 43, and described inserted block 6 comprises two square plates 61 and connecting panel 62, square plate has fixture block 63; The end of two square plates 61 forms dovetail furrow,
Draw-in groove 13 and dovetails 14 on described support 1, dovetails 14 is chimeric with dovetail furrow, and fixture block 63 is chimeric with draw-in groove 13; Guide rail 433 and square plate 61 bearing fit.
Also comprise fixed block 7, described fixed block 7 has the hold down groove 71 along length, and fixing cell wall has clasp 72;
Described support 1 has one end of dovetails 14 to have button bit 15, and described inserted block 6 has one end of dovetail furrow and dovetails 14 to be positioned at the hold down groove 71 of fixed block, and clasp 72 and button bit 15 fasten, and inserted block 6 are fixed on the bottom of support.The square plate 61 of reversing piece 43 slides.
As shown in Figure 6, Figure 7, described cavity 12 comprises the spring cavity 121 on top, the cliding seat chamber 122 at middle part and is positioned at the reversing piece chamber 123 of bottom.Pressure spring 41 is positioned at spring cavity 121 and cliding seat chamber 122 is stretched in lower end; Cliding seat 42 is positioned at cliding seat chamber 122 and stretches into reversing piece chamber 123; Now, wheel shaft 3 is positioned at lower vertical slot 4313, and now when people is not sat in not load-bearing in other words, under the effect of pressure spring 41, friction shoe 5 and cylindrical shell 21 inwall close contact friction braking, producing braking effect, is the first function.
As shown in Figure 8, Figure 9, described wheel shaft 3 is positioned at transverse groove 4311, and product is when seat people or when not sitting people, and wheel 2 all can rotate; For the second function.
As shown in Figure 10, Figure 11, described wheel shaft 3 is positioned at vertical slot 4312, and wheel 2, when sitting people, moves by gravity by product, and friction shoe 5 and circular axle bed 22 frictional fit of wheel 2, produce braking effect.
Above-described is only preferred embodiments of the present utility model.It should be pointed out that for the person of ordinary skill of the art, when not departing from the utility model principle, can also make some improvement and modification, this is also considered as protection domain of the present utility model.
Claims (4)
1. a friction braking formula castor, it comprises support, wheel, wheel shaft, braking direction reverser, and described support comprises for holding the braking cavity of converting mechanism and the vertical guide chute of through cavity; Wheel is arranged on the both sides of support;
Described braking direction reverser comprises pressure spring, cliding seat and reversing piece, the top of cliding seat have shank, guide groove and through guide groove through hole, reversing piece comprises body and handle, body has chute, chute comprise transverse groove and be positioned at transverse groove two ends upwards to the upper and lower vertical slot of downward-extension; Wheel shaft is through vertical guide chute, through hole and chute, and pressure spring is between the roof and the top of cliding seat of cavity, and shank inserts in pressure spring;
It is characterized in that: the described cylindrical shell being provided with a side opening and the circular axle bed being positioned at cylindrical shell of taking turns;
The both sides of described support are provided with friction shoe,
The cylinder inboard wall frictional fit of described friction shoe and wheel, or with circular axle bed frictional fit.
2. a kind of friction braking formula castor according to claim 1, is characterized in that: the external friction face that described friction shoe coordinates with cylindrical shell is circular arc, external friction face has the oil groove along axis and projection along the circumferential direction.
3. a kind of friction braking formula castor according to claim 1, is characterized in that: the inner friction surface that described friction shoe coordinates with circular axle bed is planar shaped or circular arc.
4. a kind of friction braking formula castor according to claim 1, is characterized in that: described reversing piece is limited in described support cavity by inserted block, thus makes described reversing piece can only transverse shifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672140.9U CN204249726U (en) | 2014-11-12 | 2014-11-12 | A kind of friction braking formula castor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672140.9U CN204249726U (en) | 2014-11-12 | 2014-11-12 | A kind of friction braking formula castor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204249726U true CN204249726U (en) | 2015-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420672140.9U Active CN204249726U (en) | 2014-11-12 | 2014-11-12 | A kind of friction braking formula castor |
Country Status (1)
| Country | Link |
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| CN (1) | CN204249726U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106827957A (en) * | 2017-02-23 | 2017-06-13 | 北京程程商贸有限公司 | A kind of movable equipment and its walking wheel |
| WO2017190386A1 (en) * | 2016-05-03 | 2017-11-09 | 中山市诺贝五金制品有限公司 | Caster having manual friction brake device |
| CN111376647A (en) * | 2018-12-28 | 2020-07-07 | 取德工业股份有限公司 | Caster wheel |
-
2014
- 2014-11-12 CN CN201420672140.9U patent/CN204249726U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017190386A1 (en) * | 2016-05-03 | 2017-11-09 | 中山市诺贝五金制品有限公司 | Caster having manual friction brake device |
| CN106827957A (en) * | 2017-02-23 | 2017-06-13 | 北京程程商贸有限公司 | A kind of movable equipment and its walking wheel |
| CN106827957B (en) * | 2017-02-23 | 2023-09-22 | 北京程程商贸有限公司 | Movable equipment and travelling gear train thereof |
| CN111376647A (en) * | 2018-12-28 | 2020-07-07 | 取德工业股份有限公司 | Caster wheel |
| CN111376647B (en) * | 2018-12-28 | 2021-06-08 | 取德工业股份有限公司 | Caster wheel |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |