CN2149328Y - Portable multi-function hand cart for up stairs use - Google Patents

Abstract

Disclosed is a portable multi-function hand cart for up stairs use, which comprises a cart frame, an operating mechanism, a braking mechanism, a horizontal angulation follower. The essential structure is that the horizontal angulation follower is arranged between a horizontal and an undercarriages of a wheel carrier, which is composed of a straight-chain bar and a collar, a switch controlling and regulating device is arranged on the horizontal angulation follower, regular Wheels and caterpillar is arranged on the undercarriages of the wheel carrier, a braking device and a recovery device is arranged on the group wheels of caterpillar bearing. The utility model has the advantages that objects on the shelf keep horizontal all the time, driving is safe, labor is saved, various complicated road surface is suitable, the cart can be collapsed into smaller volume, storing is portable.

Description

Portable multi-function hand cart for up stairs use

The utility model relates to a kind of hand-propelled vehicle, particularly portable dilly.

The kind of existing hand-propelled vehicle is a lot, even can also there be many kinds at the hand-propelled vehicle of loading about the stair, comprise that as a kind of " crawler type handcart capable of travelling up stairs " (application number 90209459.9) its formation crawler belt climbing mechanism at utility model patent bulletin on May 15th, 1991 wheel hub, crawler belt, transition supporting axle, four wheel hubs are fastened on the forward and backward end of two longerons about the car beam respectively, the transition supporting axle is contained in the longeron bottom; The upward slope trap setting is equipped with in right side front wheel hub left side, and it is made of ratchet and ratchet controller; One cover disc brake with fixed caliper respectively is housed on the right side car beam of the left side of right side rear wheel hub and left side rear-wheel hub, and drg is made up of glue, Ji shape glue base plate, handle, drag-line and transmission device thereof.Its weak point is that the loading surface of car body changes with the gradient that car travels, and makes object tilt or downslide on the car; Can not folding, not portable and deposit; Function ratio is more single, and field of application is little.

Applied range that is to provide a kind of car body loading surface can remain level in view of above-mentioned weak point the purpose of this utility model of the prior art and hand-propelled vehicle that can folding.

The purpose of this utility model can realize by following measure:

A kind of portable multi-function cart for travelling up or down stairs, it includes vehicle frame, operating unit, stop mechanism and level angle follower, it is characterized in that: the both sides, horizontal shelf rear end that are made of framework respectively are fixed with a vertical connecting panel, its part that exceeds above the horizontal shelf is provided with the axle of going up that passes two connecting panels, door font car arm rest two ends are attached thereto, on the axis of axle side-lower on the connecting panel, be provided with the locating rack that matches with the handrail arm, on horizontal shelf and car arm rest, be provided with screen cloth, connecting panel exceeds its part that is positioned at the connecting panel outside of the set hind axle of horizontal shelf lower part and links to each other with back circle wheel, inboard part links to each other with an end on wheel carrier chassis, the other end on this wheel carrier chassis is located on the front wheel spindle, be located at green phase on its base plate of group wheel carrier chassis on this wheel carrier chassis and be provided with the group wheel of overcoat crawler belt apart from the bearing pin of certain intervals, the sleeve pipe other end and straight chain bar that one end is fixed on the hind axle are pegged graft, the exposed junction of this straight chain bar is fixed on the plane trigonometry frame, it is respectively equipped with the anchor shaft of fixing a pack support one end on two angles in addition, the upper support bar that is positioned on this links to each other with horizontal shelf front end, and the lower support bar then links to each other with front wheel spindle.The opening part that is preferably in the sleeve pipe grafting is provided with the contrary device of transferring of lock control, the hexagonal gear both sides that wherein are meshed with the straight chain bar are provided with the first order speed change big gear wheel of symmetry, between the miniature gears of two set symmetries of final stage wheel shaft, also be provided with an excellent cylindricality brake wheel by the two-stage speed change, its outside is surrounded by the strap of the brake, one end of the strap of the brake is fixed on the sleeve pipe, movable end links to each other with a brake cable, and its brake lever with car arm rest one side links to each other.The strap brake movable end also links to each other with the check plate with unidirectional inclined-plane that a fulcrum is located on the sleeve pipe.The lock chamber of brake shoe is arranged in establishing between the group wheel, and its exposed junction of lock control bar that passes group wheel carrier base plate and lock pin is fixed with sneek, and the brake cable other end that connects these sneeks is fixed on the brake lever on car arm rest top.

The utility model mainly is that shelf and chassis are divided into two, is provided with the level angle follower between them; Not only be provided with conventional wheel in addition and also be provided with crawler belt on chassis, the group wheel on this crawler belt also is provided with brake equipment and reclaims Bringing-back mechanism.

The utility model mainly is made up of vehicle frame, operating unit, stop mechanism and level angle follower.Wherein vehicle frame mainly is made up of car arm rest, connecting panel, horizontal shelf and wheel carrier chassis again.The horizontal shelf that constitute by framework, preferably its plane is the order font that is made of pipe, the telescopic strut that respectively is inserted with shape in both sides girder and the corresponding through hole of middle part auxiliary girder, the end that each pole is positioned at looped pipeline is equipped with the flexion joint, can be used as the supporting leg of chaise longue when making under support vertical folding, when support level is overhanging, can widen horizontal shelf face, and support can be used as the lateral blocked frame of object when making progress folding, the handrail and the back of the body bucket of perambulator striden frame.The both sides, rear end of these horizontal shelf respectively are fixed with vertical connecting panel, and it is preferably a pair of.The part that connecting panel exceeds above the horizontal shelf is provided with the axle of going up that passes two connecting panels, and the two ends of door font car arm rest are attached thereto, and become one group of fulcrum of car arm rest.Preferably both point of connection are positioned at a pair of connecting panel, and the tubular handrail arm top of door font hollow tubular car arm rest bottom is plugged with the retractable handle of the anti-sliding sleeve of outer cover.This structure not only adjustable length also can be adjusted above-below direction, makes it not only can work as handlebar usefulness but also can work as the something or somebody to fall back on and the mobile frame of carrying of chaise longue.Side-lower at the connecting panel upper shaft hole is provided with central axis hole, and the axis in it is connected with the locating rack running-fit.The locating rack end that should match with handrail is provided with through hole, and set plug-in unit also can be inserted in one of set some through holes of handrail arm in it, so that with handrail arm location and adjustment position.Be provided with screen cloth on horizontal shelf and car arm rest, it can constitute for children sits pocket bag for sleeping in.The lower part that connecting panel exceeds horizontal shelf is provided with the hind axle that passes two connecting panels, and its part that is positioned at the connecting panel outside links to each other with trailing wheel, and its part that is positioned at the connecting panel inboard links to each other with an end on wheel carrier chassis.The other end on these two tubulose wheel carrier chassis is located at two ends to be had on the front wheel spindle of front-wheel.The circle wheel is one of operating unit with back circle wheel before above-mentioned, the crawler belt group wheel before and after operating unit also includes and is located between the circle wheel.It mainly includes group wheel carrier chassis, group wheel, crawler belt and brake equipment.Group wheel carrier chassis links to each other with the wheel carrier chassis by the running-fit attaching parts, can make two to organize wheel carriers and not only can be vertical mode of operation but also the foldable off working state that is level like this, is beneficial to deposit and carry.This group wheel carrier chassis has a block length to be slightly smaller than the base plate of front and back wheel spacing, is provided with a bearing pin at a distance of certain intervals on this base plate, is fixed with the group wheel on it.Preferably the group wheel is two, is located at dull and stereotyped both sides respectively.The group wheel rim the outside be be complementary with it and will all organize the crawler belt that wheel all contains into.The wheel rim that is preferably in the group wheel is provided with groove, and the crawler belt that is complementary with it then is provided with longitudinal fluting, to prevent crawler belt slippage when moving.Be respectively equipped with the transverse concave groove that increases friction force in addition on the inside and outside two sides of crawler belt.Above-mentioned crawler belt is preferably made by composite material, and its internal layer is stranded wire tape, and interlayer is the polymer composite fiber guipure, and skin is wear-resistant rubber-plastics material.Existing certain rigidity of such crawler belt and intensity are wear-resistant again.For adapting to sliding on the snowfield, can be with the flute profile slide plate that whole group of wheel carrier all can be covered in the outside of crawler belt, these slide plate both sides upwarp, and can be fixed together by attaching parts and the two ends of organizing the wheel carrier chassis and make it the location.Be the hull shape lock chamber of opening at the relative both sides group wheel that is provided with evagination on the group wheel carrier chassis between the group wheel.Be provided with the lock control bar that passes group wheel carrier chassis in this lock chamber, it also passes the middle part of plate shape brake lining, and exposed junction is fixed with sneek.These sneeks are coupled together with brake cable, and the other end of this brake cable is fixed on the brake lever on car arm rest top.Respectively be provided with the brake shoe of the lock that rises in the both sides of lock chamber inner brake pin, it is spacing by the lock chamber, can be all curved with lock pin and the contacted both sides of group wheel.When the needs glancing impact then imposes external force to brake lever, the brake cable that is pulled drives the sneek rotation, it orders about the lock pin by lock control bar again and rotates to an angle, so they are contacted the extrapolation of both sides brake shoe with the group wheel, the group wheel is subjected to the friction drag of brake shoe and slows down until stop motion.The level angle follower is located between horizontal shelf and the wheel carrier chassis.It mainly includes tooth bar telescopic sleeving rod and cramp bar up and down.Its middle rack telescopic sleeving rod is plugged on together by straight chain bar and tooth sleeve pipe again and constitutes.The straight chain bar is the roller that accompanies between two bonding jumpers by little shaft alignment.The end that this straight chain bar exposes is fixed on the plane trigonometry frame, be respectively equipped with the anchor shaft of fixing a pack support one end in addition two angles on this spider, be located at the upper support bar other end in the pack support on this anchor shaft lower support bar that links to each other with horizontal shelf front end and then link to each other with front wheel spindle.Remaining part of straight chain bar can place in the sleeve pipe that cross sectional shape is complementary with it.One end of sleeve pipe links to each other with hind axle in the running-fit mode, and the opening part that the other end and straight chain bar are pegged graft preferably is provided with the contrary device of transferring of lock control by attaching parts.It is a cover mechanical type lock control gear inversion speed-governing device.Its both sides of hexagonal gear that are meshed with the straight chain bar in this governor are provided with the first order speed change big gear wheel of symmetry, and by the two-stage gear change, preferably speed ratio is the torque ratio that 1:4 changes and reduced the final stage wheel shaft.Between the miniature gears of two set symmetries of final stage wheel shaft, also be provided with an excellent column type brake wheel, its outside is surrounded by the circular arc strap brake that shape with it is complementary, the one end is fixed on the sleeve pipe, movable end links to each other with a brake cable, and it directly causes on the brake lever of car arm rest opposite side along sleeve pipe, hind axle.The strap brake movable end also links to each other with the check plate with the unidirectional inclined-plane that can be complementary with the straight chain bar that a fulcrum is located on the sleeve pipe.The control of itself and strap brake interlock can be at monodirectional locking straight chain bar on the sliding position arbitrarily.When this car carries out the transition to the inclined-plane by the plane, to hold the car arm rest and make horizontal shelf maintenance level, by gravity wheel carrier chassis moves downward, and its drives straight chain bar deviates from sleeve pipe, cramp bar is up and down taken advantage of a situation open the front end with the support level shelf.When horizontal shelf are up to the standard, press brake lever and make the braking of strap brake brake wheel, variable gear that then is attached thereto and the stop motion of hexagonal gear, the check plate places again between the roller of straight chain bar simultaneously, keeping the open angle of horizontal shelf and wheel carrier chassis, solved that this car is disobeyed people's will when operation and the drawback that arbitrarily changes angle.

Drawing is described as follows:

Fig. 1 is an assembling schematic side view of the present utility model.

Fig. 2 is an assembling schematic rear view of the present utility model.

Fig. 3 is the schematic top plan view of horizontal shelf in the utility model.

Fig. 4 is the enlarged diagram of A-A among Fig. 3.

Fig. 5 is the enlarged diagram of the utility model group wheel carrier.

Fig. 6 is the C-C view of Fig. 5.

Fig. 7 is the B-B view of Fig. 5.

Fig. 8 is the vertical local enlarged diagram of crawler belt in the utility model.

Fig. 9 is the cross sectional representation of crawler belt in the utility model.

Figure 10 is the partial schematic diagram of the utility model level angle follower.

The utility model is described in further detail to utilize the example shown in the accompanying drawing.In the scheme drawing of portable multi-function cart for travelling up or down stairs illustrated in figures 1 and 2, respectively be inserted with ㄇ shape telescope support 2 in horizontal shelf 1 both sides girder of order font that is made of aluminium-alloy pipe and the corresponding through hole of auxiliary girder, the end that each support is positioned at looped pipeline is equipped with active section 3 as shown in Figure 3 and Figure 4.Each rivet welding has a pair of vertical connecting panel 4 in both sides, horizontal shelf rear end, and its part that exceeds above the horizontal shelf is provided with the upward axle 5 that passes two groups of connecting panels, and its two ends running-fit with door font car arm rest 6 is connected.The tubular handrail arm 7 of door font lead alloy pipe car arm rest bottom is pegged graft with top retractable handle 8, is covered with anti-sliding sleeve 9 on retractable handle.On the axis 10 of last axle side-lower, be provided with the locating rack 11 of adjusting car arm rest position.On horizontal shelf and car arm rest, be provided with Polymer Synthesizing fiber mesh cloth 12 and perambulator ladder 13.On the car arm rest, also establish the pole 14 of auxiliary positioning frame.Exceed horizontal shelf lower part at connecting panel and be provided with the hind axle 15 that passes two groups of connecting panels, its part that is positioned at the connecting panel outside links to each other with back circle wheel 16, and its part that is positioned at the connecting panel inboard links to each other with an end on wheel carrier chassis 17.The other end on the wheel carrier chassis of these two aluminium-alloy pipes is located at two ends to be had on the front wheel spindle 19 of preceding circle wheel 18.Again in the scheme drawing of Fig. 1 and Fig. 5, Fig. 6, the utility model group wheel carrier shown in Figure 7, the group wheel carrier chassis 20 that links to each other with the wheel carrier chassis by running-fit, be provided with two a pair of group of wheels 23 that lay respectively at the base plate both sides on its base plate 21 on the bearing pin 22 of certain intervals, its wheel rim is provided with groove.Be with the crawler belt 24 that is complementary with it in group wheel outside, the inside and outside two sides of this crawler belt is respectively equipped with the transverse teeth connected in star as shown in Figure 8.This crawler belt is made by composite material, and its internal layer is stranded steel core band 25, and interlayer is a polymer composite fiber guipure 26, and skin is wear-resistant rubber-plastics material 27, as shown in Figure 9.The crawler belt outside is with slide plate 28, and its two ends that upwarp are fixed together with group wheel carrier base plate.Be the lock chamber 29 of opening at the relative both sides group wheel that is provided with evagination on the group wheel carrier chassis between the group wheel in addition, the lock control bar 30 that passes group wheel carrier chassis set in it also passes flashboard 31 middle parts, its exposed junction is fixed with sneek 32, these sneeks are linked to each other with brake cable, and the brake cable other end is fixed on the brake lever 33 on car arm rest top.Respectively be provided with a brake shoe 34 in the both sides of lock chamber inner brake pin.Again in the scheme drawing of Fig. 1, Fig. 2 and portable cart for travelling up or down stairs shown in Figure 10, level angle follower 35 is located between horizontal shelf and the wheel carrier chassis, wherein the end that exposes of straight chain bar 36 is fixed on the plane trigonometry frame 37, is respectively equipped with the anchor shaft 38 of fixing a pack support one end on two angles in addition at it.Upper support bar 39 other ends that are located in the pack support on this anchor shaft link to each other with horizontal shelf front end by upper bracket seat 40, and lower support bar 41 then links to each other with front wheel spindle by carrier base.Remaining part of straight chain bar can place with it cross sectional shape to be complementary to be had in the sleeve pipe of slideway 43.This sleeve pipe rear end is located at the hind axle middle part in the running-fit mode, and the opening part that the other end and straight chain bar are pegged graft is fixed with the contrary device 45 of transferring of lock control by attaching parts 44.Wherein hexagonal gear 46 both sides that are meshed of chain bar are provided with the first order speed change big gear wheel 47 of symmetry with it, between the miniature gears 48 of two set symmetries of final stage wheel shaft, also be provided with an excellent column type brake wheel 49 by the two-stage gear change, its outside is surrounded by the strap of the brake 50, one end of the strap of the brake is fixed on the sleeve pipe, and movable end links to each other with a brake cable 42 again and causes on the brake lever of car arm rest opposite side.The movable end of the strap of the brake also links to each other with check plate 51 free ends with unidirectional inclined-plane that a fulcrum is located on the sleeve pipe.

The utility model has following advantage compared to existing technology:

1. owing to adopted the level angle follower to guarantee the dynamic level constant tracing property of shelf. How the gradient no matter this car travels changes, and makes the object on the shelf remain level. 2. this car is provided with Liang Taozha, can make garage's safety labor-saving adapt to the road surface of various complexity. 3. front and back wheel and group wheel crawler belt can independently use also and can unite use. 4. this car group wheel carrier can be folded in the car, the car arm rest can above axle be the center of circle to horizontal shelf folding, and the following axial horizontal shelf folding in wheel carrier chassis, caning be folded at last the middle part is the minimum volume that there is wheel three layers of both sides, portable and place. 5. this car not only can but also can have been gone downstairs at road traveling, also can slide at snowfield, sandy ground. But its not only loading but also can be manned not only can be sat but also can crouch, applied range not only be suitable for civilian also be suitable for military.

Claims (3)

1, a kind of portable multi-function cart for travelling up or down stairs, it includes vehicle frame, operating unit, stop mechanism and level angle follower, it is characterized in that: the both sides, horizontal shelf rear end that are made of framework respectively are fixed with a vertical connecting panel, its part that exceeds above the horizontal shelf is provided with the axle of going up that passes two connecting panels, door font car arm rest two ends are attached thereto, on the axis of axle side-lower on the connecting panel, be provided with the locating rack that matches with the handrail arm, on horizontal shelf and car arm rest, be provided with screen cloth, connecting panel exceeds its part that is positioned at the connecting panel outside of the set hind axle of horizontal shelf lower part and links to each other with back circle wheel, inboard part links to each other with an end on wheel carrier chassis, the other end on this wheel carrier chassis is located on the front wheel spindle, be located at green phase on its base plate of group wheel carrier chassis on this wheel carrier chassis and be provided with the group wheel of overcoat crawler belt apart from the bearing pin of certain intervals, the sleeve pipe other end and straight chain bar that one end is fixed on the hind axle are pegged graft, the exposed junction of this straight chain bar is fixed on the plane trigonometry frame, it is respectively equipped with the anchor shaft of fixing a pack support one end on two angles in addition, the upper support bar that is positioned on this links to each other with horizontal shelf front end, and the lower support bar then links to each other with front wheel spindle.

2, portable multi-function cart for travelling up or down stairs according to claim 1, it is characterized in that: the opening part of pegging graft at sleeve pipe is provided with the contrary device of transferring of lock control, the hexagonal gear both sides that wherein are meshed with the straight chain bar are provided with the first order speed change big gear wheel of symmetry, between the miniature gears of two set symmetries of final stage wheel shaft, also be provided with an excellent cylindricality brake wheel by the two-stage speed change, its outside is surrounded by the strap of the brake, one end of the strap of the brake is fixed on the sleeve pipe, movable end links to each other with a brake cable, and its brake lever with car arm rest one side links to each other.

3, portable multi-function cart for travelling up or down stairs according to claim 1 and 2 is characterized in that: the strap brake movable end also links to each other with the check plate with unidirectional inclined-plane that a fulcrum is located on the sleeve pipe.

Images