CN201856787U - Easily-turned vehicle for climbing staircases - Google Patents
Easily-turned vehicle for climbing staircases Download PDFInfo
- Publication number
- CN201856787U CN201856787U CN201020571909XU CN201020571909U CN201856787U CN 201856787 U CN201856787 U CN 201856787U CN 201020571909X U CN201020571909X U CN 201020571909XU CN 201020571909 U CN201020571909 U CN 201020571909U CN 201856787 U CN201856787 U CN 201856787U
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- ratchet
- backguy
- vehicle frame
- driving lever
- axle shaft
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- Expired - Lifetime
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Abstract
The utility model discloses an easily-turned vehicle for climbing staircases. The easily-turned vehicle comprises a vehicle frame, an axle shaft and two secondary wheels fixed at two ends of the axle shaft, wherein a vehicle frame cross beam is arranged at the bottom end of the vehicle frame; a vehicle frame longitudinal beam is vertically arranged in the middle of the vehicle frame; a gripping handle is arranged at the top end of the vehicle frame longitudinal beam; the axle shaft is rotationally connected with the frame; the two secondary wheels are symmetrically fixed at two ends of the axle shaft; the secondary wheels and the axle shaft can rotate relative to the vehicle frame; and a controllable ratchet direction-limiting device capable of controlling the rotating direction of the axle shaft is mounted at the part where the axle shaft and the vehicle frame longitudinal beam are connected. By the adoption of a mode that the axle shaft rotates relative to the vehicle frame, the two secondary wheels are symmetrical and fixed relative to the axle shaft, that is, the two secondary wheels are relatively fixed, so that the two secondary wheels can only synchronously rotate or stand and the stability of the vehicle frame can be ensured; and in addition, the vehicle can easily turn on the flat ground and a staircase platform.
Description
Technical field
The utility model relates to a kind of hand barrow that the axletree of band travelling wheel more than is arranged, and particularly relates to a kind of handcart capable of travelling up stairs of can turning easily.
Background technology
Existing known handcart capable of travelling up stairs, there are the multiple wheel and the vehicle frame of three satellite gears to constitute by a pair of, three satellite gears on the multiple wheel can rotate around wheel shaft, take turns again on the rotating axletree that is installed on vehicle frame, and vehicle frame and fixed axle are one, both sides are taken turns again can distinguish independently and are rotated with respect to vehicle frame and axletree, during the level land, take turns again both sides respectively has two-wheeled to land, promptly total four-wheel lands and rolls forward, when stepping on the building, two front-wheels that roll in the level land run into step to be stopped and stops, under people's pulling force, it is that fulcrum upwards rotates to make and restores unsettled the wheel on the horizontal surface of falling step that multiple wheel stops wheel shaft with this, two trailing wheels that roll in the level land are then unsettled, when former unsettled the wheel runs into stopping of higher level's step when stopping, promptly beginning the rank process of stepping on of next round.Common handcart capable of travelling up stairs existing problems are, on the level land or landing when turning, because be that four-wheel lands, and four wheels can only rotate the difficulty of therefore turning forward or backward.In addition,, therefore take turns again and rotate when asynchronous, vehicle frame is rocked, can not steadily move in both sides because twice multiple wheel can be distinguished independent rotation.For solving the turning difficult problem, the wheelspan of three satellite gears that the handcart capable of travelling up stairs that has will be taken turns again dwindles, and has promptly dwindled the distance between former and later two landing wheel touchdown points of multiple wheel, when turn in the level land.The landing wheel and the ground friction that drag multiple wheel are turned, but unsettled the wheel on the horizontal surface that to fall step when the problem of the method is that stepping on the building crosses step, but unsettled the wheel with the vertical plane of step contacts, therefore increased and stepped on the building resistance, wheel and ground direct friction in addition, also make serious wear of wheel, and increase noise.
The utility model content
For addressing the above problem, the utility model provide a kind of on the level land, landing can be easy to turn and move the stable handcart capable of travelling up stairs of can turning easily when stepping on the building.
The handcart capable of travelling up stairs of can turning easily of the present utility model, two multiple wheels that comprise vehicle frame, axletree and be fixed on the axletree two ends, the bottom of vehicle frame is provided with cross member of frame, the middle part of vehicle frame vertically is provided with chassis side rail, the top of chassis side rail is provided with handle, described axletree is rotating to connect to ground, the two ends that are fixed on axletree of two multiple wheel symmetries, described multiple wheel and axletree can rotate with respect to vehicle frame, and the junction of described axletree and chassis side rail is equipped with the controlled ratchet limit of may command axletree rotation direction to device.
The handcart capable of travelling up stairs of can turning easily of the present utility model, described controlled ratchet limit comprises shell to device, one or two ratchet, axle shaft tube, one or two ratchet, spring, backguy and switch, described shell is packed on the chassis side rail, ratchet and axle shaft tube are affixed, axle shaft tube passes both sides shell shell wall and is installed on the axletree, ratchet is fixed on the casing wall of both sides in rotating mode, one end of spring is replaced on casing wall, the other end of spring withstands on and is used on the ratchet ratchet is pressed to ratchet, switch is installed on the vehicle frame, one end of described backguy connects ratchet, and the other end of backguy connects switch, and the pulling backguy can be pulled away from ratchet with ratchet.
The handcart capable of travelling up stairs of can turning easily of the present utility model, described controlled ratchet limit comprises shell to device, ratchet, axle shaft tube, pawl wheel, the ratchet driving lever, first backguy, second backguy, first switch and second switch, described shell is packed on the chassis side rail, ratchet and axle shaft tube are affixed, axle shaft tube passes both sides shell shell wall and is installed on the axletree, pawl wheel is fixed on the casing wall of both sides in rotating mode, pawl wheel relies on ratchet one side and is arranged with the opposite teeth of two column directions in opposite directions, and pawl wheel is provided with three recesses that the tongue front end is replaced of dialling on can ccontaining driving lever away from ratchet one side direction central concave; Described ratchet driving lever is by the driving lever sleeve pipe, spring, dial tongue and cross bar composition for two, spring places in the tube chamber of driving lever sleeve pipe, dialling tongue for two places respectively in the tube chamber at driving lever sleeve pipe two ends, dialling an end of tongue replaces mutually with the intraluminal spring of driving lever sleeve pipe, the other end of dialling tongue is slick and sly hemispherical and dials the tongue front portion and stretch out outside the driving lever sleeve pipe, both sides, driving lever sleeve pipe middle part outwards protrude out two lugs as the driving lever rotating shaft, wherein a side lug passes the shell shell wall, pass on the outer part of shell wall and open a cross through hole, through hole can hold described cross bar and pass, the two ends of described cross bar link to each other with second backguy with first backguy respectively, described first switch links to each other with first backguy, described second switch links to each other with second backguy, the inboard of shell and pawl wheel locate also to offer three recesses in opposite directions, and the upper end of another group tongue of this recess on can ccontaining driving lever is replaced.
The handcart capable of travelling up stairs of can turning easily of the present utility model, at the two ends of described cross member of frame controlled inhibiting device is installed, this controlled inhibiting device comprises spring, pull tab and the backguy that places in the cross member of frame tube chamber two ends, one end of described pull tab is column and stretches out outside the cross member of frame, one end and the intraluminal block of described spring offset, and the other end of spring and the other end of pull tab offset; One end of backguy is positioned at the crossbeam tube chamber and is connected with the pull tab right-hand member, and the other end of backguy passes crossbeam and is connected on the switch.
Can turn the easily beneficial effect of handcart capable of travelling up stairs of the utility model is:
The utility model also is to adopt the wheeled multiple wheel construction of Samsung, its improvement is to connect to ground axletree is rotating, two multiple wheel symmetries be fixed in the axletree two ends, promptly two multiple universes and fixed axle are an integral body, the multiple universe and axletree can rotate with respect to vehicle frame, controlled ratchet limit is installed to device on axletree, can controls the rotation direction of axletree.
Controlled ratchet limit can be divided into several modes to device:
1, unidirectional single pawl ratchet device, may command axletree and multiple wheel only rotate to stepping on the building direction, handle ratchet and ratchet contact or the switch that separates is installed on the vehicle frame, and switch links to each other with ratchet by backguy.This mode only can be used for stepping on the building.
2, two-way pair of pawl ratchet device, two ratchets can be respectively or simultaneously with the ratchet contact or separate, may command axletree and multiple wheel are respectively only to stepping on building direction rotation or only maybe can not rotating or freely rotate four kinds of states to direction rotation downstairs, the switch of handling the contact of two ratchets and ratchet or separating is installed on the vehicle frame, switch links to each other with ratchet by backguy respectively, and this mode also can realize with the opposite single pawl ratchet of both direction.
3, two-way single pawl ratchet device, may command axletree and multiple wheel can only be to stepping on building direction rotation or only rotating or freely rotate to the direction of going downstairs, ratchet contacts with pawl wheel, pawl wheel contacts with the ratchet driving lever, the ratchet driving lever links to each other with cooresponding switch by backguy respectively, and two switches are installed on the vehicle frame.
When 1,3 modes of employing, in the vehicle frame bottom controlled inhibiting device is installed, promptly respectively establish one and can handle pull tab at hollow crossbeam two ends, vehicle frame bottom, pull tab rear end and spring are replaced, switch links to each other with pull tab by backguy, switch is installed on the vehicle frame, one spacing shrinkage pool respectively is set in order to holding the pull tab that hollow cross two ends, vehicle frame bottom lean out taking turns three support arm relevant positions again, so that multiple wheel and vehicle frame relative fixed; If during employing 2 modes, because two ratchets can contact with ratchet simultaneously axletree and multiple wheel can not be rotated, even therefore also vehicle frame and wheel maintenance relative fixed again can not be used in inhibiting device is installed on the vehicle frame.
Owing to adopt axletree with respect to the vehicle frame rotary way, two multiple wheel symmetries and with respect to fixed axle, that is two taken turns relative fixed again, therefore two multiple wheels can only rotate synchronously or be static, have guaranteed the stability of vehicle frame.Owing to the ratchet limit has been installed on axletree to device, when stepping on the building, multiple wheel can only rotate to stepping on the building direction, when arriving the landing turning, only needs the vehicle frame handle is pressed downwards, because multiple wheel can not be to direction rotation downstairs, therefore wheel can be a fulcrum with the fwd landing wheel again, makes the back landing wheel liftoff under the effect of vehicle frame lever force, and this moment, whole handcart capable of travelling up stairs had only two wheels to land, about each one, therefore can turn easily.When arriving higher level's step and step on rank, do not need to operate in addition other switch yet, still just haul handle and upwards step on the building and get final product.Downstairs turning also is this reason, during the level land, if the controlled ratchet limit that adopts is when device adopts 1,3 modes, because on the crossbeam of vehicle frame bottom controlled inhibiting device is installed, when pull tab is taken turns spacing shrinkage pool on the support arm again by the spring jacking of its back, then takes turns again and can not rotate relative to vehicle frame, therefore press handle downwards, also can make multiple wheel back landing wheel liftoff, this car be taken turns again have only front two landing wheels to land, the walking of therefore can rolling on the level land flexibly; If the controlled ratchet limit that adopts is when device adopts 2 modes, because two ratchets can contact with ratchet simultaneously axletree and multiple wheel can not be rotated, even also vehicle frame and multiple wheel keep relative fixed, therefore press handle downwards, also can make multiple wheel back landing wheel liftoff, this car is taken turns again have only two landing wheels in front to land, therefore also can roll on the level land flexibly and walk. in the time need stopping on the level land, only need handle is upwards lifted, then taking turns next two landing wheels again lands, make this car become four-wheel and land, can steadily stop.In addition, the ratchet resistance is installed on the axletree to another beneficial effect that device obtains is, step on Lou Shike on stairway step with very little power the handcart capable of travelling up stairs rest of stopping, wheel can not be to direction rotation downstairs again under the building state because step on, as long as stop pulling force upwards this moment, buttress handle, this car can stop on stairway step.
Description of drawings
Fig. 1 is the utility model handcart capable of travelling up stairs front view of can turning easily;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is unidirectional single pawl ratchet schematic representation of apparatus;
Fig. 4 is a two-way pair of pawl ratchet schematic representation of apparatus;
Fig. 5 is two-way single pawl ratchet schematic representation of apparatus;
Fig. 6 is a controlled inhibiting device scheme drawing on the crossbeam of vehicle frame bottom.
Among the figure:
1, multiple wheel; 2, axletree; 3, vehicle frame; 4, controlled ratchet limit is to device; 5, unidirectional single pawl ratchet device; 6, ratchet; 7, ratchet; 8, switch; 9, backguy; 10, two-way pair of pawl ratchet device; 11, ratchet; 12, ratchet door; 13, ratchet; 14, switch; 15, switch; 16, backguy; 17, backguy; 18, ratchet; 19, pawl wheel; 20, ratchet driving lever; 21, backguy; 22, switch; 23, two-way single pawl ratchet device; 24, pull tab; 25, spring; 26, switch; 27, backguy; 28, cross member of frame; 29, take turns support arm again; 30, support arm; 31, support arm; 32, spacing shrinkage pool; 33, spacing shrinkage pool; 34, spacing shrinkage pool; 35, controlled inhibiting device; 36, handle; 37, shell; 38, axle shaft tube; 39, spring; 40, chassis side rail; 41, shell; 42, axle shaft tube; 43, spring; 44, play cage; 45, shell; 46, axle shaft tube; 47, driving lever sleeve pipe; 48, spring; 49, dial tongue; 50, cross bar; 51, backguy; 52, switch; 53, block.
The specific embodiment
Below in conjunction with Figure of description a kind of handcart capable of travelling up stairs of can turning easily of the utility model is described further.
Embodiment 1
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of handcart capable of travelling up stairs of can turning easily of the present utility model, comprise vehicle frame 3, axletree 2 and be fixed on two of axletree 2 two ends and take turns 1 again, the bottom of vehicle frame 3 is provided with cross member of frame 28, the middle part of vehicle frame 3 vertically is provided with chassis side rail 40, the top of chassis side rail 40 is provided with handle 36, axletree 2 is rotating to be connected with vehicle frame 3, two two ends that are fixed on axletree 2 of taking turns 1 symmetry again, take turns again 1 and axletree 2 can rotate with respect to vehicle frame 3, axletree 2 is equipped with the controlled ratchet limit of may command axletree 2 rotation directions to device 4 with the junction of chassis side rail 40.
Referring to Fig. 3, controlled ratchet limit is unidirectional single pawl ratchet device 5 to device 4, by shell 37, and ratchet 7, axle shaft tube 38, ratchet 6, spring 39, backguy 9, switch 8 is formed, wherein shell is installed on the chassis side rail 40, and ratchet 7 is affixed with axle shaft tube 38, and axle shaft tube 38 passes both sides shell shell wall and is installed on the axletree 2; There are two lugs both sides, ratchet 6 rear portion, are placed in the shrinkage pool of both sides casing wall, play pawl axis; Spring 39 1 ends are resisted against casing wall, and the other end of spring 39 is replaced on ratchet 6, and ratchet 6 is pressed to ratchet 7; Backguy 9 one ends connect ratchet 6, and the other end of backguy 9 connects switch 8, and switch 8 is installed on the vehicle frame 3, and pulling backguy 9 acts on application force and the pressure in contrast of action of the spring on ratchet 6 on the ratchet 6, and ratchet 6 is pulled away from ratchet 7.
Referring to Fig. 4, difference from Example 1 is that controlled ratchet limit is a two-way pair of pawl ratchet device 10 to device 4, by shell 41, ratchet 13, axle shaft tube 42, ratchet 11, ratchet 12, spring 43, spring 44, backguy 16, backguy 17, switch 14, switch 15 is formed, wherein chassis side rail, shell, ratchet, axle shaft tube, axletree, ratchet, spring, backguy, the effect of switch etc. and connection mode and unidirectional single pawl ratchet are similar.
Embodiment 3
Referring to Fig. 5, difference from Example 1 is that controlled ratchet limit is two-way single pawl ratchet device 23 to device 4, by shell 45, and ratchet 18, axle shaft tube 46, pawl wheel 19, ratchet driving lever 20, backguy 21, backguy 51, switch 22, switch 52 compositions such as grade; Ratchet driving lever 20 is made up of driving lever sleeve pipe 47, spring 48, two groups of tongues 49, cross bars 50, and the benefit that adopts this kind ratchet driving lever 20 is when the ratchet engagement of ratchet and pawl wheel is difficult to break away from together, still can spur backguy and handle the rotation of ratchet driving lever; Wherein shell is installed on the chassis side rail 40, and ratchet 18 is affixed with axle shaft tube 46, and axle shaft tube 46 passes both sides shell shell wall and is installed on the axletree; Pawl wheel 19 relies on ratchet one side and arranges the opposite teeth of two column directions in opposite directions, two lugs are outwards protruded in pawl wheel 19 both sides, are placed in the shrinkage pool on the casing wall, play the rotating shaft effect, pawl wheel has three recesses away from ratchet one side direction central concave, and the tongue front end of dialling on can ccontaining driving lever is replaced; Spring 48 places in the driving lever sleeve pipe tube chamber, dialling tongue 49 for two places respectively in the tube chamber of driving lever sleeve pipe two ends, dialling back of tongue replaces mutually with the intraluminal spring of driving lever sleeve pipe, dialling the tongue front portion stretches out outside the driving lever sleeve pipe, and dial the tongue front end and be slick and sly hemispherical, both sides, driving lever sleeve pipe middle part outwards protrude out two lugs as the driving lever rotating shaft, wherein a side lug passes the shell shell wall, pass on the outer part of shell wall and open a cross through hole, holding cross bar 50 passes, cross bar 50 two ends respectively with backguy 21, backguy 51 links to each other, switch 22 links to each other with backguy 21, switch 52 links to each other with backguy 51, shell posterior medial and pawl wheel locate also to offer three recesses in opposite directions, another group tongue front end on can ccontaining driving lever is replaced, certain root backguy of pulling in this mode, drive cross bar, the ratchet driving lever rotates, make dialling in certain recess of both sides that tongue is resisted against three recesses of pawl wheel and shell rear portion respectively of ratchet driving lever two ends, pawl wheel rotates under the pressure of ratchet driving lever inner spring, side teeth are pressed towards ratchet on the pawl wheel. and ratchet can only be rotated: if another root backguy of pulling towards a certain direction, cross bar then, ratchet driving lever backward rotation, the tongue of dialling at ratchet driving lever two ends is resisted against respectively in the middle recess of three recesses of pawl wheel and shell rear portion, pawl wheel is dialled under the spring pressure of tongue back in the ratchet driving lever and is rotated, make the teeth on the pawl wheel break away from ratchet, this moment, ratchet was free to rotate; Continue this backguy of pulling, cross bar, ratchet driving lever are rotated further, the dialling in another recess of both sides that tongue is resisted against three recesses of pawl wheel and shell rear portion respectively of ratchet driving lever two ends, and pawl wheel rotates, the opposite side teeth are pressed towards ratchet, and ratchet can only be rotated towards other direction.
Referring to Fig. 6, controlled inhibiting device 35, vehicle frame bottom crossbeam 28 is a hollow tube, tube chamber two ends each a built-in spring 21 and a pull tab 24, the pull tab front end is a column, spring rear end and intraluminal block 53 offset, spring front end and pull tab rear end offset, and the pull tab front end stretches out outside the crossbeam; Backguy 27 1 ends are positioned at the crossbeam tube chamber and are connected with the pull tab rear end, and the other end passes crossbeam and is connected on the switch 26; Take turns three support arms, 29,30,31 inboards again and one spacing shrinkage pool 32,33,34 is set in order to hold pull tab front end sponson respectively with beam-end relevant position, vehicle frame bottom, when the limited shrinkage pool of pull tab front end held, multiple wheel can not rotate relative to vehicle frame; The pulling backguy, pull tab is shunk in the crossbeam tube chamber, and pull tab is drawn out spacing hole, and multiple wheel can rotate relative to vehicle frame; Unclamp backguy, pull tab goes out to crossbeam is overhanging under its back spring pressure, rotates multiple wheel, and when taking turns spacing hole on the support arm over against pull tab again, pull tab is then compressed into spacing hole by its back spring, and the multiple wheel of restriction rotates.
Above embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the common engineering staff in this area make the technical solution of the utility model all should fall in the definite protection domain of claims of the present utility model.
Claims (4)
1. handcart capable of travelling up stairs of can turning easily, two multiple wheels that comprise vehicle frame, axletree and be fixed on the axletree two ends, the bottom of vehicle frame is provided with cross member of frame, the middle part of vehicle frame vertically is provided with chassis side rail, the top of chassis side rail is provided with handle, it is characterized in that: described axletree is rotating to connect to ground, the two ends that are fixed on axletree of two multiple wheel symmetries, described multiple wheel and axletree can rotate with respect to vehicle frame, and the junction of described axletree and chassis side rail is equipped with the controlled ratchet limit of may command axletree rotation direction to device.
2. the handcart capable of travelling up stairs of can turning easily according to claim 1, it is characterized in that: described controlled ratchet limit comprises shell to device, one or two ratchet, axle shaft tube, one or two ratchet, spring, backguy and switch, described shell is packed on the chassis side rail, ratchet and axle shaft tube are affixed, axle shaft tube passes both sides shell shell wall and is installed on the axletree, ratchet is fixed on the casing wall of both sides in rotating mode, one end of spring is replaced on casing wall, the other end of spring withstands on and is used on the ratchet ratchet is pressed to ratchet, switch is installed on the vehicle frame, one end of described backguy connects ratchet, the other end of backguy connects switch, and the pulling backguy can be pulled away from ratchet with ratchet.
3. the handcart capable of travelling up stairs of can turning easily according to claim 1, it is characterized in that: described controlled ratchet limit comprises shell to device, ratchet, axle shaft tube, pawl wheel, the ratchet driving lever, first backguy, second backguy, first switch and second switch, described shell is packed on the chassis side rail, ratchet and axle shaft tube are affixed, axle shaft tube passes both sides shell shell wall and is installed on the axletree, pawl wheel is fixed on the casing wall of both sides in rotating mode, pawl wheel relies on ratchet one side and is arranged with the opposite teeth of two column directions in opposite directions, and pawl wheel is provided with three recesses that the tongue front end is replaced of dialling on can ccontaining driving lever away from ratchet one side direction central concave; Described ratchet driving lever is by the driving lever sleeve pipe, spring, dial tongue and cross bar composition for two, spring places in the tube chamber of driving lever sleeve pipe, dialling tongue for two places respectively in the tube chamber at driving lever sleeve pipe two ends, dialling an end of tongue replaces mutually with the intraluminal spring of driving lever sleeve pipe, the other end of dialling tongue is slick and sly hemispherical and dials the tongue front portion and stretch out outside the driving lever sleeve pipe, both sides, driving lever sleeve pipe middle part outwards protrude out two lugs as the driving lever rotating shaft, wherein a side lug passes the shell shell wall, pass on the outer part of shell wall and open a cross through hole, through hole can hold described cross bar and pass, the two ends of described cross bar link to each other with second backguy with first backguy respectively, described first switch links to each other with first backguy, described second switch links to each other with second backguy, the inboard of shell and pawl wheel locate also to offer three recesses in opposite directions, and the upper end of another group tongue of this recess on can ccontaining driving lever is replaced.
4. according to claim 2 or the 3 described handcart capable of travelling up stairs of can turning easily, it is characterized in that: controlled inhibiting device is installed at the two ends of described cross member of frame, this controlled inhibiting device comprises spring, pull tab and the backguy that places in the cross member of frame tube chamber two ends, one end of described pull tab is column and stretches out outside the cross member of frame, one end and the intraluminal block of described spring offset, and the other end of spring and the other end of pull tab offset; One end of backguy is positioned at the crossbeam tube chamber and is connected with the pull tab right-hand member, and the other end of backguy passes crossbeam and is connected on the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020571909XU CN201856787U (en) | 2010-10-22 | 2010-10-22 | Easily-turned vehicle for climbing staircases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020571909XU CN201856787U (en) | 2010-10-22 | 2010-10-22 | Easily-turned vehicle for climbing staircases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201856787U true CN201856787U (en) | 2011-06-08 |
Family
ID=44102603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020571909XU Expired - Lifetime CN201856787U (en) | 2010-10-22 | 2010-10-22 | Easily-turned vehicle for climbing staircases |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201856787U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973292A (en) * | 2010-10-22 | 2011-02-16 | 臧有国 | Stair climbing trolley capable of easily turning |
| CN105984479A (en) * | 2015-02-22 | 2016-10-05 | 杨祖成 | Hand buggy |
| CN107982006A (en) * | 2018-01-16 | 2018-05-04 | 浙江机电职业技术学院 | A kind of medical bed easy to fluid infusion |
| CN108210206A (en) * | 2018-01-16 | 2018-06-29 | 浙江机电职业技术学院 | A kind of sick bed structure |
-
2010
- 2010-10-22 CN CN201020571909XU patent/CN201856787U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973292A (en) * | 2010-10-22 | 2011-02-16 | 臧有国 | Stair climbing trolley capable of easily turning |
| CN105984479A (en) * | 2015-02-22 | 2016-10-05 | 杨祖成 | Hand buggy |
| CN107982006A (en) * | 2018-01-16 | 2018-05-04 | 浙江机电职业技术学院 | A kind of medical bed easy to fluid infusion |
| CN108210206A (en) * | 2018-01-16 | 2018-06-29 | 浙江机电职业技术学院 | A kind of sick bed structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110608 Effective date of abandoning: 20120502 |