CN2076948U

CN2076948U - Caterpillar type stairs car

Info

Publication number: CN2076948U
Application number: CN 90209459
Authority: CN
Inventors: 黄平生
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-06-25
Filing date: 1990-06-25
Publication date: 1991-05-15

Abstract

The utility model discloses a crawler type stairs car which can run up and down along the stair steps with heavy goods, composed of a car frame, a cat beam, a crawler type climbing mechanism, an uphill seizure device and a brake. The utility model moves upwards in parallel in a straight line when go upstair, so the working smoothness of the utility model is good and can stop to have a rest at any time, and the working safety is guaranteed. When the utility model goes downstairs, the speed is controlled by the break. The starting pulling force of the utility model is small, so the utility model has the advantages of stable working, safety, labor saving and durableness. The crawler type stairs car is especially suitable to be used for going upstairs with goods of the citizens live in multilayer building (such as carry the liquified petroleum gas pot) and carrying goods on the flat ground.

Description

Caterpillar type stairs car

The utility model relate to load use conveying arrangement, particularly a kind of hand pulling type can carry the crawler type handcart capable of travelling up stairs that weight is creeped up and down along the building step.

The most of family that lives in cities and towns lives in high-rise blocks, in daily life, often will carry heavier integral item (for example LP gas cylinder etc.) upstairs, and this is a kind of very work of effort.The present wheeled handcart capable of travelling up stairs of commercially available a kind of five bars, it is made up of bearing support, two five bars wheels and bolster thereof.The moving line of the wheeled handcart capable of travelling up stairs of five bars is the arcuation curve, and the swing of roller bar is risen, and every rising one-level all will be swung once, thereby the stationarity of its working process is not good enough, and every rising one-level all needs starting once, and the starting pulling force is big, to running out of space of user.The wheeled handcart capable of travelling up stairs of five bars does not have safety device, because moment of starting is very big, if the user does not have bigger muscle power, might turn over the danger that falls because of the center of gravity lack of equilibrium when then starting.

The purpose of this utility model is to provide a kind of crawler type handcart capable of travelling up stairs that weight is creeped up and down along the building step that can carry in order to overcome above-mentioned weak point, and it can reach stable working, safety, labour-saving effect.

The utility model is achieved in that the crawler type handcart capable of travelling up stairs is made up of vehicle frame, Che Liang, crawler type climbing mechanism, upward slope trap setting, drg, the crawler type climbing mechanism comprises wheel hub, crawler belt, transition supporting axle, four wheel hubs be fastened on respectively the car beam about the forward and backward end of two longerons, 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; Respectively be equipped with on the right side car beam of the left side of right side rear wheel hub and left side rear-wheel hub one the cover disc brake with fixed caliper, drg by glue, Shape glue base plate, handle, drag-line and transmission device thereof are formed.

The car beam becomes the groined type structure by two U-shaped longerons, two U-girder assembly weldings, and longeron is following, and crossbeam has in the side, forward and backward end of two longerons last

V notch v is as four hub spindle, 10～12 transition supporting axles of equidistant installation on four side bottom level attitudes of two longerons are installed.Wheel hub is made up of shell, two end caps, antifriction-bearing box, the screwed axles in two ends; The outer garden column section shape of shell can be 2～4 trapezoidal groove shapes, also can be convex globoidal shape, and crawler belt is set on the wheel hub shell of the left and right sides, and crawler belt can be made of 2～4 cone belt, can also be made of a flat belt.

The ratchet of upward slope trap setting is that the interior order of tooth-type is to transmission, the outer garden of its outer ring is the chain profile of tooth, inner ring has negative thread, match to merge with the overhanging thread end axle of car the right front wheel hub left side end cap and screw, the ratchet controller is by latch, plug housing, nut, pressure spring, place restrictions on nut, eccentric rod is formed, the Kong Bingyong nut that plug housing one end passes on the corresponding longeron is fastened on the longeron, the plug housing line of centers overlaps with the joint garden line of ratchet sprockets, latch is contained in the endoporus of plug housing, and be inserted in pressure spring, tighten at the plug housing other end and to place restrictions on nut, the latch afterbody is equipped with the fork-shaped eccentric rod, and latch and eccentric rod flexibly connect by pin.

The glue base plate of disc brake with fixed caliper and last, the riveted joint of two guide rods and a middle push rod is tight down, two are fastened on the longeron it by nut after being with externally threaded guide rod seat to pass cooresponding longeron aperture, article two, after guide rod passes cooresponding guide rod seat respectively, pressure spring is inserted in its extending area, with pressing spring in the screw thread of trim ring and nut screw-in guide rod afterbody, the push rod tail end has an aperture to be connected with hinge pin with the end of cranking arm, hole in the middle of cranking arm is connected with hinge pin with the hole of the seat of cranking arm, the drive end of cranking arm is connected with drag-line with the system beans, after drag-line was inserted in teleflex, its other end was connected with the handle movable arm that is fixedly mounted on vehicle frame top.Glue is contained in On the shape glue base plate, the pairing wheel hub end housing of glue base plate is as brake disc, and its surface is through sand-blast finish, to increase its friction coefficient.

The transition supporting axle is by axle and can constitute around its sleeve pipe that freely rotates, every longeron bottom 10～12 transition supporting axles of equidistant installation on the level attitude of base 8～12mm, and every transition supporting axle is fixed on the two sides corresponding aperture of same longeron.The effect of transition supporting axle is the transition supporting crawler belt, makes crawler belt reduce its degree of crook when creeping, and prolongs its service life.

The upward slope trap setting is the fortune thing safety device of going upstairs, and after the connection, the car unidirectional operation that can only make progress can not glide because of action of gravity, and operator's muscle power can be fully used.

Disc brake with fixed caliper is that the fortune thing prevents the car excessive velocities when going downstairs and causes safety device out of control.

The utility model is owing to adopt crawler type walking mechanism, so the car moving line is straight line basically, thereby upwards translation smootherly, so its stable working is good, and crawler belt that elastomeric material is made and the friction force between step are bigger, can prevent the whole downslide of car.The upward slope trap setting of being installed can be used for preventing the muscle power that glides and consumes the people because of gravity when loading is gone upstairs, and operator's muscle power can be given full play in the direction that makes progress, and as if being short of physical strength, can also stopping at any time and have a rest, and has guaranteed work safety.When making car go downstairs, disc brake with fixed caliper controls its speed by it, and the alerting ability when increasing car and turning.The starting pulling force of this handcart capable of travelling up stairs only is 60% of the wheeled handcart capable of travelling up stairs of five bars, and with this handcart capable of travelling up stairs upstairs, every next level only need start secondary, and as with the wheeled handcart capable of travelling up stairs of five bars upstairs, then whenever going up a step just needs starting once.Therefore, this crawler type handcart capable of travelling up stairs has stable working, safe, laborsaving, durable advantage.

Fig. 1 is a three-dimensional outside drawing of the present utility model;

Fig. 2 is wheel hub of the present utility model and crawler belt mounting structure figure;

Crawler belt and wheel hub containment structure cutaway view when Fig. 3 is the utility model employing flat belt;

Fig. 4 is the front view of upward slope trap setting of the present utility model;

Fig. 5 is the A-A cutaway view of Fig. 4;

Fig. 6 is the front view of disc brake with fixed caliper of the present utility model;

Fig. 7 is the A half-twist view of Fig. 6;

Fig. 8 is the B-B cutaway view of Fig. 6;

Fig. 9 is a transition supporting axle mounting constructional drawing of the present utility model.

Below by embodiment the utility model is further elaborated.

With reference to shown in Figure 1, it is the same to curve two width with steel pipe, and length is different Shape framework, two frameworks are by 135 ° ± 5 ° angle assembly weldings, and its inner chamber welds three of stulls, become the vehicle frame (1) of a good rigidly.Vehicle frame (1) has three pin, two the foot portion borings in front, cross a threaded pipe in two, this pipe is welded in above the car longeron (8), the rear foot of vehicle frame (1) is welded in the upper middle position of car after cross member (7), tighten the nut at transverse tube two then, vehicle frame (1) just connects to integral body with car beam (2).Open material with the thick steel plate of 2mm and be pressed into (8) two of the longerons of U-shaped, (7) two on crossbeam through compression machine.Longeron during assembly welding (8) is at following (notch is downward), and crossbeam (7) is close to longeron (8) back at last (its notch is downward).Whole car beam (2) is the groined type structure.Be processed into the side at the position end to end of every longeron (8)

The shape breach, as four hub spindle (14) are installed, two longerons (8) bottom is drilled with the hole of four lines φ 10mm, 12 holes of every row at the level attitude of distance base 10mm, require the corresponding aperture of every longeron (8) two sides to want with one heart, to guarantee the setting accuracy of every transition supporting axle (4).Whole car is installed 24 transition supporting axles (4) altogether, transition supporting axle (4) is made of axle (42), the sleeve pipe (43) of both end thread (BET), axle (42) is penetrated the hole, put sleeve pipe (43), with split washer (44) location, spring washer (45) is inserted at two ends, tightens two end nuts (46) then, sleeve pipe (43) can freely rotate around axle (42), referring to shown in Figure 9.Car is when level walking, and sleeve pipe (43) does not contact with crawler belt (11), and when on the car, when falling stair, sleeve pipe will be held crawler belt (11), makes its unlikely curved transitions, thereby prolongs crawler belt (11) service life.

Referring to Fig. 1, Fig. 2, shown in Figure 3, four wheel hubs (12) be fastened on respectively car beam (2) about the forward and backward end of two longerons (8), wheel hub (12) is made up of shell (16), two end caps (13), antifriction-bearing box (15), the screwed axles in two ends (14).Because crawler belt (11) can adopt cone belt or flat belt (10), thereby the outside cylinder cross sectional shape of shell (16) can be the trapezoidal groove shape of 2-4 bar, can also be convex globoidal shape (17), in the present embodiment, crawler belt (11) adopts three cone belt to form, and goes out three trapezoidal grooves at shell (16) outside face car.Crawler belt (11) is set on the wheel hub shell (16) of and arranged on left and right sides.Two end cap (13) each with 6 screw-drivings on two end faces of taking turns hub shell (16), an antifriction-bearing box (15) and axle (14) are adorned in every end cap (13) center, axle (14) both sides and draw ring screw stick into longeron (8) simultaneously

In the shape groove, draw ring screw (41) is as the degree of tightness of regulating crawler belt (11).Then each hub spindle (14) is used nut screwing clamping, it is attached on the car beam (2) securely.

Referring to Fig. 1, Fig. 4, shown in Figure 5, be positioned at right side front wheel hub (12) left side upward slope trap setting (5) is housed, it is made up of single direction ratchet (21) and ratchet controller.Ratchet (21) adopts the interior order of tooth-type to transmission, the outer garden of its outer ring (22) processes sprocket, process negative thread on the hole of inner ring, the left side end cap (13) of car the right front wheel hub also processes the outside thread that matches with ratchet (21) inner ring, and ratchet (21) is tightened on the end cap (13) by its negative thread.When not engaging this device, whole ratchet (21) rotates with unequal angular velocity with wheel hub (21).The ratchet controller by latch (23), plug housing (24), nut (25), pressure spring (26), place restrictions on nut (27), eccentric rod (28) is formed.Plug housing (24) external diameter has screw thread, and the Kong Bingyong nut (25) that the one end passes on the corresponding longeron (8) is fastened on the longeron (8).Plug housing (24) line of centers overlaps with the pitch circle line of ratchet (21) sprocket, and like this, latch (23) could be controlled ratchet (21) effectively.Latch (23) is contained in the endoporus of plug housing (24), and be inserted in pressure spring (26), tighten at plug housing (24) other end and to place restrictions on nut (27), latch (23) afterbody is equipped with fork-shaped eccentric rod (28), and latch (23) flexibly connects by pin with eccentric rod (28).Eccentric rod (28) is (state as shown in Figure 5) when loosening, and under the pressure effect of pressure spring (26), latch (23) moves to the sprocket direction of ratchet (21), inserts in the teeth groove of sprocket.At this moment, the outer ring of ratchet (21) is blocked by latch (23), and the wheel hub of car (12) can only can not reverse to direction rotation upstairs, so play the function of going up a slope and catching.When straining eccentric rod (28) outward (axis of eccentric rod this moment (28) and the parallel axes of latch (23)) with hand, latch (23) is under the tension of eccentric rod (28), the pressure that overcomes spring (26) leaves the sprocket channel of ratchet (21), whole ratchet (21) is again along with wheel hub (12) rotates, car just can be done forward and backward motion, so when car is freighted downstairs and on the level land, do not need to connect the upward slope trap setting.

Referring to Fig. 1, Fig. 6, Fig. 7, shown in Figure 8, this crawler type handcart capable of travelling up stairs respectively is equipped with a cover disc brake with fixed caliper (6) on the right side Che Liang (2) of the left side of the right rear-wheel hub (12) and left side rear-wheel hub (12).Drg (6) by glue (32),

Shape glue base plate (33), handle (9), drag-line (31) and transmission device thereof are formed.Glue base plate (33) is with last, lower guide rod (35) and a middle push rod (38) riveted joint are tight, on, lower guide rod (35) right-hand member is respectively adorned a glue (32), two are fastened on the longeron (8) it with nut after being with externally threaded guide rod seat (39) to pass cooresponding longeron (8) aperture, guide rod (35) is a bearing fit with guide rod seat (39) centre hole, article two, after guide rod (35) passes cooresponding guide rod seat (39) respectively, pressure spring (34) is inserted in its extending area, with pressing spring (34) in the screw thread of trim ring and nut screw-in guide rod (35) afterbody, push rod (38) tail end aperture is connected with hinge pin with (36) one ends of cranking arm, the hole of cranking arm in the middle of (36) is connected with hinge pin with a hole of crank arm (40), crank arm (36) drive end with the system beans (37) be connected with drag-line (31), after drag-line (31) is inserted in teleflex, its other end is connected with handle (9) movable arm that is installed in support (1) top, handle (9) is fixed on the pipe of support (1) top apart from the about 150mm of cross-peen with clip and screw, and movable arm is downward.The pairing wheel hub end housing of glue (32) (13) surface as brake disc, to increase friction force, makes braking function reliable through sand-blast finish.The working process of brake is as follows: handle (9) is when loosening, and pressure spring (34) imposes elastic force to trim ring and nut, makes its drive two guide rods (35) and glue (32) leave brake disc, the car cruising.If drawing handle (9) spurs (36) rotation of cranking arm by drag-line (31), the other end of crank arm (36) drives push rod (38) to the motion of brake disc direction, thereby drives Shape glue base plate (33) makes glue (32) compress brake disc, and car is braked and halts.

Claims

1, a kind of crawler type handcart capable of travelling up stairs is made up of vehicle frame (1), car beam (2), traveling gear, it is characterized in that:

(1) said traveling gear is crawler type climbing mechanism (3), it comprises wheel hub (12), crawler belt (11), transition supporting axle (4), four wheel hubs (12) be fastened on respectively car beam (2) about the forward and backward end of two longerons (8), transition supporting axle (4) is contained in longeron (8) bottom;

(2) upward slope trap setting (5) is equipped with in right side front wheel hub (12) left side, and it is made of ratchet (21) and ratchet controller;

(3) respectively be equipped with on the right side Che Liang (2) of the left side of right side rear wheel hub (12) and left side rear-wheel hub (12) one the cover disc brake with fixed caliper (6), drg by glue (32),

Shape glue base plate (33), handle (9), drag-line (31) and transmission device thereof are formed.

2, crawler type handcart capable of travelling up stairs according to claim 1, it is characterized in that said car beam (12) becomes the groined type structure by two U-shaped longerons (8), two U-girders (7) assembly welding, longeron (8) is following, and crossbeam (7) has in the bottom surface, forward and backward end of two longerons (8) last

V notch v, the level attitude in four sides of two longerons (8) apart from its base 8～12mm respectively is drilled with 10～12 holes, and each hole pitch-row equates that the corresponding aperture of every longeron (8) two sides should be concentric.

3, crawler type handcart capable of travelling up stairs according to claim 1 is characterized in that wheel hub (12) is made up of shell (16), two end caps (13), antifriction-bearing box (15), the screwed axles in two ends (14); The outer garden column section shape of shell (16) can be 2～4 trapezoidal groove shapes, it also can be convex globoidal shape (17), crawler belt (11) is set on the wheel hub shell (16) of the left and right sides, crawler belt (11) can be made of 2～4 cone belt, can also be made of a flat belt (10).

4, crawler type handcart capable of travelling up stairs according to claim 1, it is characterized in that the going up a slope outer garden of ratchet (21) outer ring (22) of trap setting (5) is the chain profile of tooth, inner ring has negative thread, match to merge with the overhanging thread end axle of the right front wheel hub left side end cap (13) and screw, the ratchet controller is by latch (23), plug housing (24), nut (25), pressure spring (26), place restrictions on nut (27), eccentric rod (28) is formed, the Kong Bingyong nut (25) that plug housing (24) one ends pass on the corresponding longeron (8) is fastened on the longeron (8), plug housing (24) line of centers overlaps with the joint garden line of ratchet (21) sprocket, latch (23) is contained in the endoporus of plug housing (24), and be inserted in pressure spring (26), tighten at plug housing (24) other end and to place restrictions on nut (27), latch (23) afterbody is equipped with fork-shaped eccentric rod (28), and latch (23) flexibly connects by pin with eccentric rod (28).

5, crawler type handcart capable of travelling up stairs according to claim 1, it is characterized in that described disc brake with fixed caliper (6), its glue base plate (33) is with last, the riveted joint of two guide rods (35) and a middle push rod (38) is tight down, two are fastened on the longeron (8) it by nut after being with externally threaded guide rod seat (39) to pass cooresponding longeron (8) aperture, article two, after guide rod (35) passes cooresponding guide rod seat (39) respectively, pressure spring (34) is inserted in its extending area, with pressing spring (34) in the screw thread of trim ring and nut screw-in guide rod (35) afterbody, push rod (38) tail end has an aperture to be connected with hinge pin with (36) one ends of cranking arm, the hole of cranking arm in the middle of (36) is connected with hinge pin with a hole of crank arm (40), crank arm (36) drive end with the system beans (36) be connected with drag-line (31), after drag-line (31) was inserted in teleflex, its other end was connected with handle (9) movable arm that is fixedly mounted on vehicle frame (1) top.

6, crawler type handcart capable of travelling up stairs according to claim 1, it is characterized in that transition supporting axle (4) by axle (42) and can constitute, every longeron (8) bottom 10～12 transition supporting axles of equidistant installation (4) on the level attitude of base 8～12mm around its sleeve pipe that freely rotates (43).