CN201249788Y - Object-carrying trailer with multi-wheel for climbing stairs - Google Patents
Object-carrying trailer with multi-wheel for climbing stairs Download PDFInfo
- Publication number
- CN201249788Y CN201249788Y CNU2008201031219U CN200820103121U CN201249788Y CN 201249788 Y CN201249788 Y CN 201249788Y CN U2008201031219 U CNU2008201031219 U CN U2008201031219U CN 200820103121 U CN200820103121 U CN 200820103121U CN 201249788 Y CN201249788 Y CN 201249788Y
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Abstract
The utility model relates to an object-carrying trailer with multi-wheel for climbing stairs comprising multi-wheel groups, a main shaft and a trailer frame, wherein each of the multi-wheel groups is characterized in that three groups of big wheels and small wheels are clamped by two regular triangle wheel clips, wherein the big wheels are landing wheels, the small wheels are belt pulleys, three small wheels are arranged on the same side of the big wheels, which are connected with each other through a belt. When the trailer moves forwards on flat ground, the landing wheels are contacted with the ground surface, the wheels rotate clockwise, and the pulleys relatively rest. When the trailer walks upwards the steps, one of the landing wheels is hindered, the regular triangle wheel clip rotates around the main shaft, the belt is contacted with the edges and the corners of the steps and are bended inwards, the elastic deformation is generated, and simultaneously the belt slides around the pulleys clockwise, the other landing wheel rolls forwards crossing the steps, the belt is separated with the surfaces of the steps, the elastic deformation is recovered, namely the wheels reach a new step. The trailer has the advantages of good damping performance, labor saving when climbing steps, small noises, not damaging the surfaces of the steps and the like. The trailer can be smoothly dragged on a rugged ground surface.
Description
Affiliated technical field the utility model relates to a kind of trailer, particularly a kind of stair climbing loading trailer of taking turns again.
People use the manpower trailer to load weight usually in the background technology daily life, to alleviate the fatigue that manpower carries on one's shoulders or with both hands.Yet common trailer can only solve level land delivery, can't go upstairs.And, desire to take Weight upstairs climbing for numerous old persons, many inconvenience is then arranged.
Application number is 200420053377.4 utility model patent " a kind of floor truck of energy stair climbing ", introduced a kind of towing dolly of energy stair climbing, but vehicle frame with a support weight, have straight joist and curved joist on the vehicle frame, the bottom of vehicle frame is a cambered axle, it is simple in structure, but load-carrying capacity and stability are all limited.
Application number is 200620029011.6 utility model patent " traveling bag of stair climbing ", has introduced a kind of traveling bags with many group pulleys, by many groups pulley at stair case scrolling realization stair climbing.
Application number is 200420012101.2 utility model patent " crawler belt roller stairs clambing handcart ", introduced a kind of crawler belt roller stairs clambing handcart, its shelf bottom is fixedly connected with land wheel by axle, the dorsal part of shelf is fixedly connected with two climbing wheels by two axles, and two climbing wheels cooperate by cterpillar drive.
Application number is 02268484.0 utility model patent " multifunctional building tower wagon ", introduced a kind of multifunctional building tower wagon, it has hull, the hull bottom is equipped with axletree by pole, be fixed with pipe link on the axle sleeve outside the axletree, pipe link is equipped with roller by axle sleeve, and handle and baffle plate are arranged on the hull.
Existing general its stability of stairs clambing handcart, carrying capacity and on/cushioning ability when going downstairs all remains further to be improved.
It is good that the summary of the invention the purpose of this utility model provides a kind of damping performance, the labor-saving effect obviously, easily up/down steps, be applicable to the multiple wheeled Hand pulling vehicle of stair climbing of delivery article.Dolly also can easily drag on the level land simultaneously.
A kind of stair climbing loading trailer of taking turns again of the present utility model is made up of multiple wheels, main shaft and vehicle frame.Multiple wheels are made up of 2 identical multiple wheels of structure, are installed on the both sides of vehicle frame respectively, and each multiple wheel is clamped 3 big or small wheels by 2 equilateral triangle wheels, and each big or small wheels is made of coaxial 1 bull wheel and 1 steamboat, and the wheel folder is gone up each wheel shaft and is parallel to each other; Bull wheel is a landing wheel, and steamboat is a belt pulley, and the outer rim of steamboat is provided with belt grooves; The diameter of bull wheel is greater than steamboat; Every group of big steamboat is connected with wheel shaft by bearing, and each wheel all can freely rotate around wheel shaft.3 steamboats are installed in the same side of bull wheel, realize being connected to each other of 3 steamboats by a belt.
The equilateral triangle wheel is folded with central shaft hole, and three jig arm are measure-alike, become 120 ° of neutral angles, and wherein 1 jig arm is provided with belt pulley tensioning groove, and all the other 2 jig arm respectively are provided with 1 axis hole, and the wheel shaft of 1 big or small wheels is installed in the belt pulley tensioning groove; The wheel shaft of 2 remaining big or small wheels is installed in respectively in the axis hole that 2 jig arm respectively are provided with 1, and 2 axis holes equate with the distance of shaft centers of central shaft hole; 1 sleeve passes the central shaft hole of 2 equilateral triangles wheel folders and its welding is fixing, and main shaft is installed in the bearing in the sleeve, and is fixed on the vehicle frame with firm, and multiple wheels, main shaft and vehicle frame are connected as a single entity.
The utility model is owing to adopt the multiple wheels of major diameter to land, the trailer configuration of the multiple wheels overcoat belt of minor diameter, when trailer along stair in dilatory mode on downstairs the time, belt contact stair in the multiple wheels play tangible cushioning effect, damping performance is good, has also simultaneously that stair climbing is laborsaving, noise is little, do not destroy advantages such as step surface; Also can adapt to and drag comparatively smooth-goingly on rough road surface.
Description of drawings Fig. 1, a kind of stair climbing loading trailer front schematic view of taking turns again;
Fig. 2, a kind of stair climbing loading trailer right side scheme drawing of taking turns again;
Fig. 3, a kind of stair climbing loading trailer " several " font main shaft scheme drawing of taking turns again.
Illustration: pull bar 1, vehicle frame 2, take turns 3 again, sleeve 4, belt 5, equilateral triangle wheel folder 6, central shaft hole 7, axis hole 8, clamp nut 9. big or small wheels 10, bull wheel 11, steamboat 12, feet 13, main shaft 14, belt pulley tensioning groove 15, wheel shaft 16, adjust piece 17, setting nut 18, screw rod hook 19.
Specific embodiments is illustrated below in conjunction with embodiment in order fully to disclose a kind of stair climbing loading trailer of taking turns again of the present utility model.
Embodiment takes turns stair climbing loading trailer for one one kinds again
As shown in Figure 1, a kind of stair climbing loading trailer of taking turns again of the present utility model is made up of 2 identical multiple wheel 3, main shaft 14 and vehicle frames 2 of structure; 2 multiple wheels 3 that structure is identical are installed on the both sides of vehicle frame 2 respectively.
As shown in Figure 2, take turns 3 again and clamp 3 large and small wheels by 2 equilateral triangles wheel folder 6, equilateral triangle wheel folder 6 is provided with central shaft hole 7, three jig arm are measure-alike, become 120 ° of neutral angles, wherein 1 jig arm is provided with belt pulley tensioning groove 15, and all the other 2 jig arm are provided with axis hole 8, and each axis hole equates with the distance of shaft centers of central shaft hole 7.Size wheels 10 are made of bull wheel 11 and steamboat 12 and wheel shaft 16, and the outer rim of steamboat 12 is provided with belt grooves, and bull wheel 11 and steamboat 12 are coaxial and be connected with wheel shaft 16 by bearing; Wheel shaft 16 is installed in the belt pulley tensioning groove 15 by screw rod hook 19, the thread end of screw rod hook 19 passes the through hole of adjusting piece 17, adjust screw rod hook 19 drive wheel shafts 16 by setting nut 18 and in belt pulley tensioning groove 15, move, change wheel shaft 16 and realize the adjusting of belt degree of tightness with the width between centers of main shaft 14.Described adjustment piece 17 is the cuboid that there is a through hole at a center.3 big or small wheel group structures are identical, and 3 wheel shafts are parallel to each other, and all the other 2 big or small wheels are fixed on the equilateral triangle wheel folder 6 with clamp nut 9 respectively by axis hole 8.3 steamboats are installed in the same side of bull wheel, realize being connected to each other of 3 steamboats by belt 5.
As shown in Figure 1, sleeve 4 passes 2 equilateral triangle wheel folder central shaft holes 7, and by welding equilateral triangle wheel folder 6 is fixed on the sleeve 4, in the sleeve 4 bearing is housed.As shown in Figure 3, main shaft 14 is curved main shaft, is " several " font, and its two ends 14B is contained in the bearing of sleeve 4, and interlude 14A and vehicle frame 2 link to each other by fastener.As shown in Figure 1, vehicle frame 2 is L shaped structure, and the horizontal segment of vehicle frame 2 is provided with feet 13, and trailer can stand on ground or the step surface, and vertically section is provided with telescopic adjustment pull bar 1, and the telescopic adjustment Tiebar structure is a conventional confguration.
When trailer moved ahead on the level land, landing wheel contacted with ground, and cw spinning roller, belt pulley are static relatively.
When trailer runs into obstacle or step, a landing wheel is obstructed, equilateral triangle wheel folder 6 is around main shaft 14 rotations, belt 5 contacts with the step corner angle, curves inwardly, and elastic deformation takes place, slide around the belt pulley cw simultaneously, the another landing wheel was crossed obstacle and was rolled forward, and belt breaks away from step surface, and elastic deformation recovers.
Because multiple wheels normally two landing wheels land, three landing wheels rolling that lands of can taking turns when running into obstacle, belt elastic deformation and slip when particularly belt 5 contacts with the ladder corner angle, play the flexible transition effect, with being used of " several " font wheel shaft, reduce the center of gravity of trailer and article, the jump when the buffering dolly is crossed step, reduce the center of gravity fluctuation amplitude of trailer and article, do the smooth curve motion when trailer is gone upstairs.Tension variations is less, can realize the fair speed stair climbing.So make trailer have good damping property, improve the stationarity of stair climbing.
The present invention is relatively simple for structure, and volume is less, the trailer that can be widely used in doing shopping, bottled water, coal gas dispensing trailer.
Claims (3)
1, a kind of stair climbing loading trailer of taking turns again is made up of multiple wheels, main shaft and vehicle frame; Multiple wheels are made up of 2 identical multiple wheels of structure, are installed on the both sides of vehicle frame respectively; It is characterized in that each multiple wheel clamps 3 big or small wheels by 2 equilateral triangles wheels, each big or small wheels is made of coaxial 1 bull wheel and 1 steamboat, and wheel folder upward each wheel shaft is parallel to each other; Bull wheel is a landing wheel, and steamboat is a belt pulley, and the outer rim of steamboat is provided with belt grooves; The diameter of bull wheel is greater than steamboat; Every group of big steamboat is connected with wheel shaft by bearing, and each wheel all can freely rotate around wheel shaft; 3 steamboats are installed in the same side of bull wheel, realize being connected to each other of 3 steamboats by a belt; The equilateral triangle wheel is folded with central shaft hole, and three jig arm are measure-alike, become 120 ° of neutral angles, and wherein 1 jig arm is provided with belt pulley tensioning groove, and all the other 2 jig arm respectively are provided with 1 axis hole, and the wheel shaft of 1 big or small wheels is installed in the belt pulley tensioning groove; The wheel shaft of 2 remaining big or small wheels is installed in respectively in the axis hole that 2 jig arm respectively are provided with 1, and 2 axis holes equate with the distance of shaft centers of central shaft hole; 1 sleeve passes the central shaft hole of 2 equilateral triangles wheel folders and its welding is fixing, and main shaft is installed in the bearing in the sleeve, and is fixed on the vehicle frame with firm, and multiple wheels, main shaft and vehicle frame are connected as a single entity.
2, a kind of stair climbing loading trailer of taking turns again according to claim 1 is characterized in that main shaft is curved main shaft, is " several " font.
3, a kind of stair climbing loading trailer of taking turns again according to claim 1 and 2 is characterized in that the horizontal segment of vehicle frame is provided with feet, and trailer can stand on ground or the step surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201031219U CN201249788Y (en) | 2008-07-23 | 2008-07-23 | Object-carrying trailer with multi-wheel for climbing stairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201031219U CN201249788Y (en) | 2008-07-23 | 2008-07-23 | Object-carrying trailer with multi-wheel for climbing stairs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201249788Y true CN201249788Y (en) | 2009-06-03 |
Family
ID=40745459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201031219U Expired - Fee Related CN201249788Y (en) | 2008-07-23 | 2008-07-23 | Object-carrying trailer with multi-wheel for climbing stairs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201249788Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791168A (en) * | 2010-03-02 | 2010-08-04 | 丘文挺 | Traveling gear of manual conveyance vehicle |
| CN104773194A (en) * | 2015-04-02 | 2015-07-15 | 广州索诺星信息科技有限公司 | Wheel-staggered stairway-climbing vehicle |
-
2008
- 2008-07-23 CN CNU2008201031219U patent/CN201249788Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791168A (en) * | 2010-03-02 | 2010-08-04 | 丘文挺 | Traveling gear of manual conveyance vehicle |
| CN104773194A (en) * | 2015-04-02 | 2015-07-15 | 广州索诺星信息科技有限公司 | Wheel-staggered stairway-climbing vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20110723 |