CN104986203A - A parking braking mechanism in a hotel gathering vehicle - Google Patents
A parking braking mechanism in a hotel gathering vehicle Download PDFInfo
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- CN104986203A CN104986203A CN201510451817.5A CN201510451817A CN104986203A CN 104986203 A CN104986203 A CN 104986203A CN 201510451817 A CN201510451817 A CN 201510451817A CN 104986203 A CN104986203 A CN 104986203A
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- hotel
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- parking
- braking mechanism
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Abstract
The invention provides a parking braking mechanism in a hotel gathering vehicle and belongs to the technical field of machinery. The problem that the conventional hotel gathering vehicles cannot be braked is solved. The parking braking mechanism in a hotel gathering vehicle is arranged between a handle and a brake pad and comprises a pull rope, a guide drum and a pull rod, wherein the inner end of the pull rod is hinged to the handle; the guide drum is vertically fixed to the outer side of a vehicle body; the upper end of the pull rope is fixedly connected to the middle portion of the pull rod; the lower end of the pull rope is fixedly connected with the brake pad after penetrating through the guide sleeve; a resetting spring is arranged between the outer end of the pull rod and the handle; the outer end of the pull rod has a tendency of getting far away from the handle by the action of the elastic force of the resetting spring. The parking braking mechanism can be used for braking of hotel gathering vehicles.
Description
Technical field
The invention belongs to field of mechanical technique, relate to the parking and braking mechanism in the storage of a kind of hotel car, particularly hotel storage car.
Background technology
Hotel (is also called hotel, hotel, hotel, hotel, travelling merchants, inn, inn, restaurant is done in Taiwan, Hongkong and Macro, Malaysia, Deng Zuo hotel of Singapore) its basic definition is to provide safe, comfortable, makes user obtain the commercial undertaking in the rest of short-term or the space of sleep.Be exactly usually provide the place of having a rest with diet to guests in fact.Specifically restaurant is with its building for voucher, provides service, thus obtain the tissue of economic gain by selling guest room, food and drink and comprehensive service facility to guest.Hotel is mainly the facilities such as visitor's service of accommodating, the service of also living and facility (before getting into bed service), food and drink, game, amusement, shopping, commercial center, dinner party and meeting.
In the management process in hotel, need staff to clear up the coverlet in room or other daily necessities, because cleaning amount is large, in existing hotel, be usually equipped with storage car.
But existing storage car is not owing to possessing braking function, staff leaves storage car when arranging hotel room, and storage car may slide, and causes it to strike other article or pedestrian.
Its publication number of Chinese patent CN204157960U provides " a kind of hotel article accommodating vehicle ", it comprises casing and four cardan wheels, four cardan wheels are uniform to be arranged on the bottom surface of casing, the utility model also comprises rotating shaft, pushing handle mechanisms, sewage disposer, two bearings, two sleeves and six receivers, casing is cuboid, rotating shaft is vertically inserted in casing, and two bearings are from top to bottom sleeved in rotating shaft successively, and each bearing is set with a sleeve.The utility model is used for hotel management field.
Can find out, disclose concrete container structure in above-mentioned patent, but how whole storage car is braked not open, also not open braking how to carry out operation to realize simultaneously.
Its publication number of Chinese patent CN203402567U provides " a kind of Biohazard Waste storage car ", it comprises chamber and dividing plate, and wherein, chamber is divided into two parts space by dividing plate, the box body having at least two to be arranged side by side in first space, described box opening is positioned at the top of chamber; Have at least two casings be arranged side by side in second space, described casing is provided with opening face; The subjacent of described chamber is provided with wheels.It properly and efficiently can process Biohazard Waste, the Biohazard Waste of orderly management lesion, improve the compliance of classification process Biohazard Waste, reduce pricking wound, keep the clean and tidy of therapeutic room's environment, reduce Biohazard Waste diffusion, reduce the pollution of environment, reduce the physical demands of nurse, improve work efficiency.
But, in this patent, its concrete brake structure is not still disclosed.
Other storage car for hotel existing all also exists similar problem.
Summary of the invention
The object of the invention is for the above-mentioned problems in the prior art, provide a kind of system for reclaiming rainwater, this system purification rainwater, alleviate the problem of shortage of water resources.
Object of the present invention realizes by following technical proposal:
Parking and braking mechanism in a kind of hotel's storage car, hotel's storage car comprises car body, handle and roller, above-mentioned rollers is connected to vehicle bottom, above-mentioned handle is connected in side body, described roller place has the brake facing that can be braked, it is characterized in that, mechanism is arranged between handle and brake facing, mechanism comprises stay cord, guide cylinder and pull bar, the inner of described pull bar is hinged on handle, what described guide cylinder was vertical is connected in outside car body, the upper end of above-mentioned stay cord is connected in the center of pull bar, being connected through its lower end of guide cylinder and brake facing of described stay cord, retracing spring is provided with between the outer end of described pull bar and handle, in the elastic force effect lower link outer end of retracing spring, there is the trend away from handle.
The roller place of hotel's storage car has brake facing, and brake facing place has brake spring, and under the elastic force effect of brake spring, brake facing has the trend be resisted against on roller.That is, storage car roller when not using state cannot rotate, and keeps staying dynamic state.
Mechanism is for performing parking action.Specifically, staff promotes in storage car process, and hand is held on pull bar and handle simultaneously, and the elastic force overcoming retracing spring makes pull bar and handle fit.Now, brake facing is subject to the draw disengaging roller of stay cord.Can find out, when promoting storage car, braking can not occur.
Leave storage car once hotel staff to arrange room, show in the elastic force effect lower link outer end of retracing spring, under the elastic force effect of brake spring, brake facing is resisted against on roller, forms braking.
Because the spacing of handle and roller place brake facing is long, therefore, can avoid outside stay cord is exposed to, improving its control stiffness by guide cylinder.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, the inner side of described pull bar is that the outside of described pull bar is circular arc in plane contact surface.
When pull bar and handle are fitted, make both contacts steadily by contact surface.Arc-shaped structure outside pull bar is convenient to staff and is gripped.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, there is some recessed grooves and the grip part of above-mentioned groove formation for gripping for staff's finger place outside described pull bar.
The structure of grip part meets human engineering, and the storage car with mechanism uses and seems more smoothly.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, have recessed holding tank on the downside of described handle, above-mentioned pull bar whole pull bar after its hinged place swings can be positioned at holding tank, and holding tank is stretched out in above-mentioned grip part.
The structure of holding tank can not only make pull bar and handle is stable contact, but also avoids pull bar to take too much space, is convenient to the storage car after promotion brake off.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, bottom described holding tank, place has recessed spring perch, and wherein one end of above-mentioned retracing spring is connected in spring perch place.
Spring perch the stable installation site providing spring end is set.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described handle bottom is also fixed with dividing plate, described dividing plate has the bar hole run through, and is positioned at bar hole place and pull bar width is slightly less than bar hole width in the middle part of above-mentioned pull bar.
Dividing plate have to pull bar swing guide to effect.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, the lower end of described bar hole is fixed with cushion blocking, has at the elastic force effect lower link of above-mentioned retracing spring the trend be resisted against on above-mentioned cushion blocking.
Pull bar can be avoided under the effect of cushion blocking to clash into suddenly, while reducing noise, improve operational stability.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, aforementioned barriers is between grip part and guide cylinder.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, the upper end of described stay cord is connected on the pull bar between dividing plate and guide cylinder.
Such structure can avoid operator's hand to touch stay cord, improves processing safety.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, the both sides place of described bar hole is fixed with damping fin, and the both sides of above-mentioned pull bar abut on corresponding damping fin respectively.
The setting of damping fin makes pull bar swing gently.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, the outer end place of described pull bar is connected with upper shield.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described upper shield is tubular, and above-mentioned upper shield is enclosed within pull bar outer end and both are connected.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described upper shield is elastomeric material.
The upper shield of flexible material can avoid the hand of operator to block.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described upper shield outer end is anti-card division spherically.
Anti-card division the phenomenon further avoiding card hand is set.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described pull bar outer end has the positioning groove that some roads are recessed into ringwise, positioning groove place embedding with described inside above-mentioned upper shield.
Be embedded in positioning groove place inside flexible upper shield, add both connective stabilities.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described upper shield end has the deflation hole run through.
Arranging of deflation hole can be avoided occurring vacuum between upper shield and tie rod end.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described pull bar outer end is close to upper shield place and has recessed cushion block groove, and described cushion block groove place has the cushion block that matches with it and block portion stretches out inside pull bar.
Pad is generally flexible material, is to pad to fit with handle when pull bar and handle are fitted, and in laminating process, noise is little.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described cushion block sidepiece is resisted against above-mentioned cover and covers.
Upper shield plays certain position-limiting action to cushion block.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described cushion block is elastomeric material.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described cushion block is cast iron materials.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described cushion block is spring.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described guide cylinder cylindrically and at the two ends of guide cylinder is all connected with tubular line cap excessively, described Guo Xianmao center has the through hole run through, and above-mentioned two form the rope chamber excessively passed through for stay cord excessively between line cap and guide cylinder.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described line cap of crossing comprises cylindric body, the outside of one end of described body has the convex edge of protrusion, the described body other end be with guide cylinder inside the connecting portion that matches, described connecting portion is embedded in the port that in guide cylinder and above-mentioned convex edge is resisted against guide cylinder.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, the port described line cap being excessively positioned at side, convex edge has the excessive portion of smooth excessiveness.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described excessive portion was line cap inner port place fillet structure.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described excessive portion was the chamfering structure at line cap inner port place.
Excessive portion can avoid stay cord through sharp right angle, improves its stability.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, also have an inner barrel cylindrically in described guide cylinder, described inner barrel external diameter and guide cylinder internal diameter match, and cross the two ends that line cap is resisted against inner barrel respectively for above-mentioned two.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, in described inner barrel, store lubricating grease.
Lubricating grease can make the smooth and easy movement of stay cord, improves stability.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described mistake between line cap and inner barrel is fixed with oil sealing, and above-mentioned stay cord is through oil sealing.
In parking and braking mechanism in above-mentioned a kind of hotel's storage car, described oil sealing in the form of annular discs and wherein the heart there is the cord hole run through, the edge of described oil sealing is pressed on inner barrel and crosses between line cap.
Lubricating grease can not only be blocked in inner barrel by the structure of oil sealing, and stay cord can also be made to pass through smoothly.
Compared with prior art, the parking and braking mechanism in this hotel storage car can freely rotate due to roller during driving, and staff leaves the braking of storage Che Shihui automatic traveling crane.Therefore, its hommization degree is high, and safe reliability is high.
Meanwhile, pull bar and handle can be stablized and fit, and the grip part on pull bar meets human engineering, and its operation comfort is high.
In addition, the lubricating grease in guide cylinder can also make the smooth and easy movement of stay cord, further improves its stability.
Accompanying drawing explanation
Fig. 1 is the structural representation of storage car in hotel's with mechanism.
The Tu2Shi Zhe hotel structural representation at the parking and braking mechanism pull bar place in storage car.
The Tu3Shi Zhe hotel structural representation at upper shield place in the parking and braking mechanism in storage car.
The Tu4Shi Zhe hotel sectional structure schematic diagram of guide cylinder in the parking and braking mechanism in storage car.
In figure, 1, car body; 1a, handle; 1a1, holding tank; 1a11, spring perch; 2, roller; 3, brake facing; 4, brake spring; 5, stay cord; 6, guide cylinder; 7, pull bar; 7a, grip part; 7b, positioning groove; 7c, cushion block groove; 8, retracing spring; 9, dividing plate; 10, cushion blocking; 11, upper shield; 11a, anti-card division; 11b, deflation hole; 12, cushion block; 13, line cap is crossed; 13a, body; 13b, convex edge; 13c, connecting portion; 13d, excessively portion; 14, inner barrel; 15, oil sealing.
Detailed description of the invention
As shown in Fig. 1 and Fig. 2 and Fig. 3 and Fig. 4, hotel's storage car comprises car body 1, handle 1a and roller 2, and above-mentioned rollers 2 is connected to bottom car body 1, and above-mentioned handle 1a is connected in car body 1 sidepiece, and described roller 2 place has the brake facing 3 that can be braked.
Parking and braking mechanism in book hotel storage car is arranged between handle 1a and brake facing 3, mechanism comprises stay cord 5, guide cylinder 6 and pull bar 7, the inner of described pull bar 7 is hinged on handle 1a, what described guide cylinder 6 was vertical is connected in outside car body 1, the upper end of above-mentioned stay cord 5 is connected in the center of pull bar 7, being connected through its lower end of guide cylinder 6 and brake facing 3 of described stay cord 5, be provided with retracing spring 8 between the outer end of described pull bar 7 and handle 1a, in elastic force effect lower link 7 outer end of retracing spring 8, there is the trend away from handle 1a.
The inner side of described pull bar 7 is that the outside of described pull bar 7 is circular arc in plane contact surface.
Outside described pull bar 7, there is some recessed grooves and the grip part 7a of above-mentioned groove formation for gripping for staff's finger place.
Have recessed holding tank 1a1 on the downside of described handle 1a, above-mentioned pull bar 7 whole pull bar 7 after its hinged place swings can be positioned at holding tank 1a1, and above-mentioned grip part 7a stretches out holding tank 1a1.
Bottom described holding tank 1a1, place has recessed spring perch 1a11, and wherein one end of above-mentioned retracing spring 8 is connected in spring perch 1a11 place.
Described handle 1a bottom is also fixed with dividing plate 9, and described dividing plate 9 has the bar hole run through, and is positioned at bar hole place and pull bar 7 width is slightly less than bar hole width in the middle part of above-mentioned pull bar 7.
The lower end of described bar hole is fixed with cushion blocking 10, has at the elastic force effect lower link 7 of above-mentioned retracing spring 8 trend be resisted against on above-mentioned cushion blocking 10.
Aforementioned barriers 9 is between grip part 7a and guide cylinder 6.
The upper end of described stay cord 5 is connected on the pull bar 7 between dividing plate 9 and guide cylinder 6.
The both sides place of described bar hole is fixed with damping fin, and the both sides of above-mentioned pull bar 7 abut on corresponding damping fin respectively.
The outer end place of described pull bar 7 is connected with upper shield 11.
Described upper shield 11 is in tubular, and above-mentioned upper shield 11 is enclosed within pull bar 7 outer end and both are connected.In the present embodiment, upper shield 11 is elastomeric material.
Described upper shield 11 outer end is anti-card division 11a spherically.
Described pull bar 11 outer end has the positioning groove 7b that some roads are recessed into ringwise, positioning groove 7b place embedding with described inside above-mentioned upper shield 11.
Described upper shield 11 end has the deflation hole 11b run through.
Described pull bar 7 outer end is close to upper shield 11 place and has recessed cushion block groove 7c, and described cushion block groove 7c place has the cushion block 12 that matches with it and cushion block 12 part is stretched out inside pull bar 7.
Described cushion block 7 sidepiece is resisted against on above-mentioned upper shield 11.
Described cushion block 12 is elastomeric material.According to actual conditions, cushion block 12 is cast iron materials is also feasible, and certainly, cushion block 12 adopts spring also feasible.
Described guide cylinder 6 cylindrically and at the two ends of guide cylinder 6 is all connected with tubularly crosses line cap 13, and described Xian Mao 13 center of crossing has the through hole run through, above-mentioned two cross to be formed between line cap 13 and guide cylinder 6 for stay cord pass through rope chamber.
Described line cap 13 of crossing comprises cylindric body 13a, the outside of one end of described body 13a has the convex edge 13b of protrusion, the described body 13a other end be with guide cylinder 6 inside the connecting portion 13c that matches, described connecting portion 13c to be embedded in guide cylinder 6 and above-mentioned convex edge 13b is resisted against the port of guide cylinder 6.
The port described line cap 13 being excessively positioned at 13b side, convex edge has the excessive portion 13d of smooth excessiveness.
Described excessive portion 13d was line cap 13 inner port place fillet structure.According to actual conditions, described excessive portion 13d was the chamfering structure at line cap 13 inner port place is also feasible.
Also have an inner barrel 14 cylindrically in described guide cylinder 6, described inner barrel 14 external diameter and guide cylinder 6 internal diameter match, and cross the two ends that line cap 13 is resisted against inner barrel 14 respectively for above-mentioned two.
Lubricating grease is stored in described inner barrel 14.Described mistake between line cap 13 and inner barrel 14 is fixed with oil sealing 15, and above-mentioned stay cord 5 is through oil sealing 15.Described oil sealing 15 in the form of annular discs and wherein the heart there is the cord hole run through, the edge of described oil sealing 15 is pressed on inner barrel 14 and crosses between line cap 13.
Roller 2 place of hotel's storage car has brake facing 3, and brake facing 3 place has brake spring 4, and under the elastic force effect of brake spring 4, brake facing 3 has the trend be resisted against on roller 2.That is, storage car roller 2 when not using state cannot rotate, and keeps staying dynamic state.
Mechanism is for performing parking action.Specifically, staff promotes in storage car process, and hand is held on pull bar 7 and handle 1a simultaneously, and the elastic force overcoming retracing spring 8 makes pull bar 7 and handle 1a fit.Now, brake facing 3 is subject to the draw disengaging roller 2 of stay cord 5.Can find out, when promoting storage car, braking can not occur.
Leave storage car once hotel staff to arrange room, show in elastic force effect lower link 7 outer end of retracing spring 8, under the elastic force effect of brake spring 4, brake facing 3 is resisted against on roller 2, forms braking.
Because the spacing of handle 1a and roller 2 place brake facing 3 is long, therefore, can avoid outside stay cord 5 is exposed to, improving its control stiffness by guide cylinder 6.
Claims (10)
1. the parking and braking mechanism of hotel in storage car, hotel's storage car comprises car body, handle and roller, above-mentioned rollers is connected to vehicle bottom, above-mentioned handle is connected in side body, described roller place has the brake facing that can be braked, it is characterized in that, mechanism is arranged between handle and brake facing, mechanism comprises stay cord, guide cylinder and pull bar, the inner of described pull bar is hinged on handle, what described guide cylinder was vertical is connected in outside car body, the upper end of above-mentioned stay cord is connected in the center of pull bar, being connected through its lower end of guide cylinder and brake facing of described stay cord, retracing spring is provided with between the outer end of described pull bar and handle, in the elastic force effect lower link outer end of retracing spring, there is the trend away from handle, also there is in described guide cylinder an inner barrel cylindrically, described inner barrel external diameter and guide cylinder internal diameter match, cross the two ends that line cap is resisted against inner barrel respectively for above-mentioned two.
2. the parking and braking mechanism in a kind of hotel's storage car according to claim 1, is characterized in that, store lubricating grease in described inner barrel.
3. the parking and braking mechanism in a kind of hotel's storage car according to claim 1, it is characterized in that, described mistake between line cap and inner barrel is fixed with oil sealing, and above-mentioned stay cord is through oil sealing.
4. the parking and braking mechanism in storage car in a kind of hotel according to claim 3, is characterized in that, described oil sealing in the form of annular discs and wherein the heart there is the cord hole run through, the edge of described oil sealing is pressed on inner barrel and crosses between line cap.
5. the parking and braking mechanism in a kind of hotel's storage car according to claim 1, it is characterized in that, the inner side of described pull bar is that the outside of described pull bar is circular arc in plane contact surface.
6. the parking and braking mechanism in a kind of hotel's storage car according to claim 1, is characterized in that having some recessed grooves outside described pull bar and the grip part of above-mentioned groove formation for gripping for staff's finger place.
7. the parking and braking mechanism in a kind of hotel's storage car according to claim 1, it is characterized in that, have recessed holding tank on the downside of described handle, above-mentioned pull bar whole pull bar after its hinged place swings can be positioned at holding tank, and holding tank is stretched out in above-mentioned grip part.
8. the parking and braking mechanism in a kind of hotel's storage car according to claim 1, it is characterized in that, bottom described holding tank, place has recessed spring perch, and wherein one end of above-mentioned retracing spring is connected in spring perch place.
9. the parking and braking mechanism in a kind of hotel's storage car according to claim 1, it is characterized in that, described handle bottom is also fixed with dividing plate, described dividing plate has the bar hole run through, and is positioned at bar hole place and pull bar width is slightly less than bar hole width in the middle part of above-mentioned pull bar.
10. the parking and braking mechanism in a kind of hotel's storage car according to claim 1, it is characterized in that, the lower end of described bar hole is fixed with cushion blocking, has at the elastic force effect lower link of above-mentioned retracing spring the trend be resisted against on above-mentioned cushion blocking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510451817.5A CN104986203A (en) | 2015-07-28 | 2015-07-28 | A parking braking mechanism in a hotel gathering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510451817.5A CN104986203A (en) | 2015-07-28 | 2015-07-28 | A parking braking mechanism in a hotel gathering vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN104986203A true CN104986203A (en) | 2015-10-21 |
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ID=54298139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510451817.5A Pending CN104986203A (en) | 2015-07-28 | 2015-07-28 | A parking braking mechanism in a hotel gathering vehicle |
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| Country | Link |
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| CN (1) | CN104986203A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107351887A (en) * | 2017-08-04 | 2017-11-17 | 佛山华灿通医疗器械有限公司 | A kind of foldable pushcart |
| CN110638237A (en) * | 2019-09-26 | 2020-01-03 | 王遇明 | Automatic high stable aviation dining car bottom connecting device of locking |
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| US7396026B1 (en) * | 2006-07-11 | 2008-07-08 | Munson Erik L | Shopping cart brake |
| CN201670310U (en) * | 2009-11-20 | 2010-12-15 | 永克达工业股份有限公司 | Bicycle lead device |
| CN202923690U (en) * | 2012-11-27 | 2013-05-08 | 中国矿业大学 | Multifunctional trolley |
| CN203920849U (en) * | 2014-06-25 | 2014-11-05 | 中国计量学院 | Emergency seat chair form shopping cart |
| CN204055883U (en) * | 2014-08-28 | 2014-12-31 | 南京劲和铸造有限公司 | A kind of hand brake type waggon |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2582981Y (en) * | 2002-12-12 | 2003-10-29 | 林口仪器工业股份有限公司 | Bidirectional brake |
| KR20050021403A (en) * | 2005-01-24 | 2005-03-07 | 박성국 | a cart |
| US7396026B1 (en) * | 2006-07-11 | 2008-07-08 | Munson Erik L | Shopping cart brake |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107351887A (en) * | 2017-08-04 | 2017-11-17 | 佛山华灿通医疗器械有限公司 | A kind of foldable pushcart |
| CN110638237A (en) * | 2019-09-26 | 2020-01-03 | 王遇明 | Automatic high stable aviation dining car bottom connecting device of locking |
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Application publication date: 20151021 |
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