CN103057351B - Braking trundle - Google Patents
Braking trundle Download PDFInfo
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- CN103057351B CN103057351B CN201210592896.8A CN201210592896A CN103057351B CN 103057351 B CN103057351 B CN 103057351B CN 201210592896 A CN201210592896 A CN 201210592896A CN 103057351 B CN103057351 B CN 103057351B
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- cam
- brake
- bearing plate
- stay bearing
- sides
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- 235000004443 Ricinus communis Nutrition 0.000 claims description 53
- 230000000694 effects Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 13
- 229910000639 Spring steel Inorganic materials 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000013016 damping Methods 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000013213 extrapolation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The invention provides a braking trundle, belongs to the technical field of machinery, and solves the problem of low practical applicability and short service life of existing braking trundles. The braking trundle comprises a foot stool capable of being mounted at the bottom of a device and wheels connected with the foot stool, two sides of the foot stool are connected with a supporting plate, the outer end of the supporting plate is hinged with the wheels, a rotating shaft position of the wheels is provided with a protruding block, the inner side of the supporting plate is provided with a cam, and the outer side of the supporting plate is connected with a pedal. The cam extends from the inner side of the supporting plate and is connected with the pedal, the inner side of the supporting plate is fixedly connected with cranks respectively arranged on two sides of the cam, the inner ends of the crank respectively abut against the inner sides of the cam, the outer ends of the two cranks are respectively arranged on two sides of the protruding block, and when the cam rotates, outer ends of the two cranks can contract and clamp two sides of the protruding block. The braking trundle has the advantages of being convenient to brake, stable in use, wide in applicability and the like.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of brake castor, particularly relate to a kind of double brake castor.
Background technology
Castor is a kind of common product, refers to be connected with the bottom of conveying arrangement, and the wheel that can freely change direction, it is broadly divided into fixed castor and rotary-type castor.It is installed on the bottom of the utensils such as furniture, go-cart or lathe usually, and utensil can be moved flexibly and easily.After utensil moves, need transfixion, be therefore necessary on castor, arrange a brake equipment.
Traditional braking trundle brake sheet adopts spring steel plate punching to be shaped, and keeps fixing distance between brake facing and wheel, makes brake facing reach drag effect to the compressing of wheel tyre surface by shake slipper.
As Chinese patent discloses a kind of castor [application number: 200720048378.4; Notification number: CN201002478Y], the mount pad comprising trundle bracket, be arranged on the roller on trundle bracket and be articulated on trundle bracket, trundle bracket is also provided with the brake equipment simultaneously braking mount pad and roller, the damping leaf that brake equipment comprises the gearset spacer be fixed on mount pad, is arranged on the pedal on trundle bracket and is arranged between gearset spacer and pedal.This castor, when braking, makes one end of damping leaf press down pair roller by pushes pedals and brakes, the other end of damping leaf is lifted and snaps in gearset spacer, thus realize double brake.
But, in use roller is inevitable must wear and tear or be out of shape for above-mentioned castor, the ultimate range that if the degree of wear of roller causes the change of its size to exceed damping leaf end can be pressed down, so damping leaf just cannot play brake action by pair roller again, cause the practicality of this castor to reduce, service life is not long.
Summary of the invention
The object of the invention is the problems referred to above existed for prior art, propose a kind ofly to brake conveniently, braking effect is good, the brake castor of long service life.
Object of the present invention realizes by following technical proposal: a kind of brake castor, comprise the foot rest that can be installed on device bottom and the wheel be connected with foot rest, it is characterized in that, the both sides of described foot rest are connected with stay bearing plate, outer end and the wheel of described stay bearing plate are hinged, rotating shaft place of described wheel has projection, cam is provided with inside described stay bearing plate, the outside of described stay bearing plate is connected with pedal, the inner side of described cam self-supporting slab is stretched out and is connected with pedal, described stay bearing plate fixedly connected to the inner side the crank laying respectively at cam both sides, the inner of two described cranks leans with the both sides of cam respectively, the outer end of two described cranks lays respectively at the both sides of projection, described cam can make the outer end of above-mentioned two cranks shrink and the both sides of crimp lug when rotating.
This castor controls the rotation of cam by pedal, when will brake to wheel, the lower pedal band moving cam that tramps with one's feet rotates, cam both sides by the inner of two cranks to extrapolation, thus the outer end of two cranks is shunk, outer end due to two cranks is positioned at the both sides of projection, the both sides of projection will be clamped when therefore shrinking in the outer end of two cranks.And wheel and stay bearing plate are hinged, so when the both sides of projection clamp by the outer end of two cranks, wheel just cannot rotate, thus makes wheel be in braking state.
In above-mentioned brake castor, described projection is circular, the outer end of two described cranks is all connected with curved brake facing, and described brake facing is positioned at the both sides of projection, above-mentioned brake facing can be driven to be clamped projection both sides when the outer end of two described cranks is shunk.
Brake facing can the action along with the action of crank, and when the outer end of crank is shunk along with the rotation of cam, brake facing also and then can shrink thus be clamped the both sides of projection.
In above-mentioned brake castor, described crank outer end and the inner side of stay bearing plate are equipped with joint pin, and the two ends of described brake facing are connected with the joint pin on crank and stay bearing plate respectively.
In above-mentioned brake castor, described projection external circumferential is evenly equipped with some tooth bars, has rubber layer inside described brake facing.Utilize tooth bar to be engaged on rubber layer and can increase friction force, enable brake facing crimp lug more securely, thus wheel cannot be rolled.
In above-mentioned brake castor, outside described projection, there is rubber layer, inside described brake facing, there is some tooth bars.Utilize tooth bar to be engaged on rubber layer and can increase friction force, enable brake facing crimp lug more securely, thus wheel cannot be rolled.
In above-mentioned brake castor, also stop screw is provided with inside described stay bearing plate, described stop screw is wound with elastic spacing bar, the two ends of described elastic spacing bar lean with the outer end of two cranks respectively, and the outer end of two described cranks can overcome the elastic force effect of elastic spacing bar and shrink when cam rotates.
When driving states, the outer end of the two ends of elastic spacing bar and two cranks leans, and can prevent the outer end of two cranks from just shrinking when cam does not rotate like this, thus has influence on the normal use of castor.
In above-mentioned brake castor, described foot rest comprises a base and to be arranged at below base and can relative to the tressel of base rotation, the bottom surface of described base is evenly equipped with some slots along tressel circumference, described tressel sidepiece has installation cavity, latch and spring is provided with in described installation cavity, described latch lower end and cam are connected by steel wire, described both ends of the spring is connected to bottom installation cavity and latch lower end, and described latch can insert in slot when cam rotates.
Tressel can make castor rotate in 360 degree, can increase alerting ability when castor moves like this.At driving states, cam, by the drop-down latch of steel wire, makes latch be separated with slot.During push down on the pedal brake, cam rotates, and the power of the drop-down latch of steel wire is diminished, and now latch just stretches out installation cavity upper end and inserts in slot under the elastic force effect of spring.
In above-mentioned brake castor, the outside of described stay bearing plate is provided with a spring steel ball, and the inner side of described pedal has two positioning grooves, and described spring steel ball can partly be positioned at above-mentioned positioning groove under the elastic force effect of himself.In the driving stage, spring steel ball part is arranged in one of them of two positioning grooves, and work as push down on the pedal, pedal turns over certain angle relative to stay bearing plate, and spring steel ball is positioned at again another positioning groove, now shows that castor is in braking state.
In above-mentioned brake castor, the sidepiece of described stay bearing plate is also provided with can by trim coated for wheel sidepiece.Trim can increase the aesthetics of this castor profile, makes the globality of castor better.
Compared with prior art, this brake castor has the following advantages:
1, this brake castor utilizes cam rotation to make brake facing shrink the braking state clamping of projection both sides being reached wheel, and brake is convenient, and is not subject to the impact of wheel wear degree, and in-use performance is stablized;
2, this brake castor rotates the movement controlling latch by cam, and utilizes the elastic force effect of spring to make tressel reach braking state, and novel structure, also can reach the Associated brake with wheel simultaneously;
3, this brake castor can not only realize movement and the universal rotational of common castor, and brake while also utilizing cam to realize wheel and tressel, practical value is high, applicability is wide, can be widely used on each equipment;
4, arrange at the sidepiece of stay bearing plate can by trim coated for wheel sidepiece for this brake castor, and make the profile of this castor more attractive in appearance, globality is better.
Accompanying drawing explanation
Fig. 1 is the perspective view of this brake castor.
Fig. 2 is the exploded drawings at this brake castor stay bearing plate and pedal place.
Fig. 3 is the cutaway view that in this brake castor, wheel is in driving states.
Fig. 4 is the schematic diagram that in this brake castor, wheel is in braking state.
Fig. 5 is the cutaway view that in this brake castor, tressel is in active state.
Fig. 6 is the cutaway view that in this brake castor, tressel is in braking mode.
In figure, 1, foot rest; 2, wheel; 3, stay bearing plate; 4, projection; 5, cam; 6, pedal; 7, crank; 8, brake facing; 9, joint pin; 10, tooth bar; 11, rubber layer 12, stop screw 13, elastic spacing bar 14, base 15, tressel; 16, slot; 17, installation cavity; 18, latch; 19, spring; 20, steel wire; 21, spring steel ball; 22, positioning groove; 23, trim.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Embodiment one
As depicted in figs. 1 and 2, a kind of brake castor, comprises the foot rest 1 that can be installed on device bottom, and foot rest 1 both sides are connected with stay bearing plate 3, and the outer end of stay bearing plate 3 is hinged with wheel 2, and the sidepiece of stay bearing plate 3 is provided with can by trim 23 coated for wheel 2 sidepiece.Foot rest 1 comprises base 14 and is arranged at the tressel 15 below base 14, and tressel 15 can rotate relative to base 14, and stay bearing plate 3 is connected to the both sides of tressel 15.
As shown in Figure 2, Figure 3 and Figure 4, the inner side of stay bearing plate 3 is provided with cam 5, and the outside of stay bearing plate 3 is connected with pedal 6, stretches out and be connected with pedal 6 inside cam 5 self-supporting slab 3.The outside of stay bearing plate 3 has mounting hole, is provided with spring steel ball 20 in mounting hole, and the inner side of pedal 6 has two positioning grooves 22, when mounting hole and positioning groove 22 just pair time, spring steel ball 20 can stretch in positioning groove 22 in the elastic force effect lower part of himself spring 19.
As shown in Figure 3 and Figure 4, stay bearing plate 3 has fixedly connected to the inner side the both sides that two cranks, 7, two cranks 7 lay respectively at cam 5, and the inner of two cranks 7 leans with the both sides of cam 5 respectively.The outer end of two cranks 7 is all connected with curved brake facing 8, is equipped with joint pin 9 inside crank 7 outer end and stay bearing plate 3, and the two ends of brake facing 8 are connected on the joint pin 9 inside crank 7 outer end and stay bearing plate 3.The inner side of stay bearing plate 3 is also provided with stop screw 12, stop screw 12 is wound with elastic spacing bar 13, and the two ends of elastic spacing bar 13 lean with the outer end of two cranks 7 respectively.
Rotating shaft place of wheel 2 has the both sides laying respectively at projection 4 in circular projection 4, two pieces of brake facings 8.Projection 4 external circumferential is evenly equipped with some tooth bars 10, and the inner side of brake facing 8 has rubber layer 11, and when when cam 5 rotates, the outer end of two cranks 7 is shunk, the both sides of projection 4 can clamp by two brake facings 8.
As shown in Fig. 2, Fig. 3, Fig. 5 and Fig. 6, the bottom surface of base 14 is evenly equipped with some slot 16s along tressel 15 circumference, the sidepiece installation cavity 17 of tressel 15, latch 18 and spring 19 is provided with in installation cavity 17, lower end and the cam 5 of latch 18 are connected by steel wire 20, and the two ends of spring 19 are connected to bottom installation cavity 17 and the lower end of latch 18.In the present embodiment, worn and torn to prevent steel wire 20 to be exposed to outer, can at the outer sheathed rubber tube of steel wire 20.
As shown in Figure 3 and Figure 5, this castor is when driving states, and spring steel ball 20 part outside stay bearing plate 3 stretches in one of them of two positioning grooves 22 inside pedal 6.Cam 5 overcomes the elastic force effect of spring 19 by steel wire 20 and strains latch 18 downwards, and in latch 18 retraction installation cavity 17, now castor can be rotated arbitrarily by tressel 15 in 360 degree.Meanwhile, the outer end being positioned at two cranks 7 of cam 5 both sides is also in expansion state, and the both sides of projection 4 do not clamp by brake facing 8.
As shown in Figure 4, during brake, push down on the pedal 6, the spring steel ball 20 outside stay bearing plate 3 can stretch in another of two positioning grooves 22 inside pedal 6.Pedal 6 rotates and drives coupled cam 5 to rotate, and the both sides of cam 5 can, by the inner of two cranks 7 to extrapolation, make the outer end of two cranks 7 overcome the elastic force effect of elastic spacing bar 13 and shrink simultaneously.The two pieces of brake facings 8 being connected to two crank 7 outer ends can follow the outer end of crank 7 together to shrink, and the rubber layer 11 inside brake facing 8 is engaged mutually with the tooth bar 10 of projection 4 sidepiece, thus make wheel 2 be in braking state.
As shown in Figure 6, while pedal 6 rotates with moving cam 5, cam 5 is reduced by the power of the drop-down latch 18 of steel wire 20, and be less than the elastic force effect of spring 19, latch 18 just can stretch out installation cavity 17 upper end and make the upper end of latch 18 insert in slot 16 under the elastic force effect of spring 19, such tressel 15 just cannot rotate, and finally reaches the double brake state of wheel 2, tressel 15.
Embodiment two
The present embodiment with the structure of embodiment one and principle substantially identical, difference is: in the present embodiment, the outside of projection 4 has rubber layer 11, and the inner side of brake facing 8 has some tooth bars 10.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (9)
1. a brake castor, comprise the foot rest (1) that can be installed on device bottom and the wheel (2) be connected with foot rest (1), it is characterized in that, the both sides of described foot rest (1) are connected with stay bearing plate (3), outer end and the wheel (2) of described stay bearing plate (3) are hinged, rotating shaft place of described wheel (2) has projection (4), described stay bearing plate (3) inner side is provided with cam (5), the outside of described stay bearing plate (3) is connected with pedal (6), the inner side of described cam (5) self-supporting slab (3) is stretched out and is connected with pedal (6), described stay bearing plate (3) fixedly connected to the inner side the crank (7) laying respectively at cam (5) both sides, the inner of two described cranks (7) leans with the both sides of cam (5) respectively, the outer end of two described cranks (7) lays respectively at the both sides of projection (4), described cam (5) can make the outer end of above-mentioned two cranks (7) shrink and the both sides of crimp lug (4) when rotating.
2. brake castor according to claim 1, it is characterized in that, described projection (4) is in circular, the outer end of two described cranks (7) is all connected with curved brake facing (8), described brake facing (8) is positioned at the both sides of projection (4), above-mentioned brake facing (8) can be driven to be clamped projection (4) both sides when the outer end of two described cranks (7) is shunk.
3. brake castor according to claim 2, it is characterized in that, described crank (7) outer end and the inner side of stay bearing plate (3) are equipped with joint pin (9), and the two ends of described brake facing (8) are connected with the joint pin (9) on crank (7) and stay bearing plate (3) respectively.
4. the brake castor according to Claims 2 or 3, is characterized in that, described projection (4) external circumferential is evenly equipped with some tooth bars (10), and described brake facing (8) inner side has rubber layer (11).
5. the brake castor according to Claims 2 or 3, is characterized in that, described projection (4) outside has rubber layer (11), and described brake facing (8) inner side has some tooth bars (10).
6. the brake castor according to claim 1 or 2 or 3, it is characterized in that, described stay bearing plate (3) inner side is also provided with stop screw (12), described stop screw (12) is wound with elastic spacing bar (13), the two ends of described elastic spacing bar (13) lean with the outer end of two cranks (7) respectively, and the outer end of two described cranks (7) can overcome the elastic force effect of elastic spacing bar (13) when cam (5) rotates and shrink.
7. the brake castor according to claim 1 or 2 or 3, it is characterized in that, described foot rest (1) comprises a base (14) and is arranged at base (14) below and the tressel (15) that can rotate relative to base (14), the bottom surface of described base (14) is evenly equipped with some slots (16) along tressel (15) circumference, described tressel (15) sidepiece has installation cavity (17), latch (18) and spring (19) is provided with in described installation cavity (17), described latch (18) lower end and cam (5) are connected by steel wire (20), described spring (19) two ends are connected to installation cavity (17) bottom and latch (18) lower end, described latch (18) can insert in slot (16) when cam (5) rotates.
8. the brake castor according to claim 1 or 2 or 3, it is characterized in that, the outside of described stay bearing plate (3) is provided with a spring steel ball (21), the inner side of described pedal (6) has two positioning grooves (22), and described spring steel ball (21) partly can be positioned at above-mentioned positioning groove (22) under the elastic force effect of himself.
9. brake castor according to claim 8, is characterized in that, the sidepiece of described stay bearing plate (3) is also provided with can by trim (23) coated for wheel (2) sidepiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592896.8A CN103057351B (en) | 2012-12-29 | 2012-12-29 | Braking trundle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592896.8A CN103057351B (en) | 2012-12-29 | 2012-12-29 | Braking trundle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103057351A CN103057351A (en) | 2013-04-24 |
| CN103057351B true CN103057351B (en) | 2015-04-15 |
Family
ID=48100358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210592896.8A Active CN103057351B (en) | 2012-12-29 | 2012-12-29 | Braking trundle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103057351B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108099496B (en) * | 2017-12-31 | 2024-02-27 | 无锡市中冠医疗设备有限公司 | Combined worm gear driven electric control castor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2176921Y (en) * | 1994-01-19 | 1994-09-14 | 张连发 | Locking type castor |
| CN201573489U (en) * | 2009-11-02 | 2010-09-08 | 胡坚兴 | Full-brake castor |
| JP2011235662A (en) * | 2010-04-30 | 2011-11-24 | Kobe Sharyo Seisakusho:Kk | Caster with brake, caster unit, truck including the same |
| DE102010051093A1 (en) * | 2010-11-12 | 2012-05-16 | Steinco Paul Vom Stein Gmbh | Roller for appliance or furniture, comprises supporting part which is formed from head part and one legged foot part which is provided for wheel, where braking device or locking device is formed from foot part |
| CN202965814U (en) * | 2012-12-29 | 2013-06-05 | 胡坚兴 | Braking caster wheel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10044370C1 (en) * | 2000-09-08 | 2002-05-02 | Rhombus Rollen Gmbh & Co | transport roller |
-
2012
- 2012-12-29 CN CN201210592896.8A patent/CN103057351B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2176921Y (en) * | 1994-01-19 | 1994-09-14 | 张连发 | Locking type castor |
| CN201573489U (en) * | 2009-11-02 | 2010-09-08 | 胡坚兴 | Full-brake castor |
| JP2011235662A (en) * | 2010-04-30 | 2011-11-24 | Kobe Sharyo Seisakusho:Kk | Caster with brake, caster unit, truck including the same |
| DE102010051093A1 (en) * | 2010-11-12 | 2012-05-16 | Steinco Paul Vom Stein Gmbh | Roller for appliance or furniture, comprises supporting part which is formed from head part and one legged foot part which is provided for wheel, where braking device or locking device is formed from foot part |
| CN202965814U (en) * | 2012-12-29 | 2013-06-05 | 胡坚兴 | Braking caster wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103057351A (en) | 2013-04-24 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG EDL CASTERS CO., LTD. Free format text: FORMER OWNER: HU JIANXING Effective date: 20150505 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150505 Address after: Taizhou City, Zhejiang province 317605 Yuhuan County Truman Town Industrial Park of science and technology Patentee after: Zhejiang EDL Casters Co., Ltd. Address before: Truman town Yuhuan County road Taizhou City, Zhejiang province environmental protection 317605 No. 96 Patentee before: Hu Jianxing |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 317605 Zhejiang city of Yuhuan province Truman Town Industrial Park of science and technology Patentee after: Zhejiang easy foot wheel Limited by Share Ltd Address before: Taizhou City, Zhejiang province 317605 Yuhuan County Truman Town Industrial Park of science and technology Patentee before: Zhejiang EDL Casters Co., Ltd. |