CN102700578B

CN102700578B - Trolley

Info

Publication number: CN102700578B
Application number: CN201210189696.8A
Authority: CN
Inventors: 楼攀登
Original assignee: NINGBO NANYANG VEHICLE CO Ltd
Current assignee: NINGBO NANYANG VEHICLE CO Ltd
Priority date: 2012-06-09
Filing date: 2012-06-09
Publication date: 2014-01-29
Anticipated expiration: 2032-06-09
Also published as: CN102700578A

Abstract

The invention relates to a trolley which comprises a flat plate (1), a handrail (2) connected with the flat plate (1) and wheels (3) arranged below the flat plate (1), wherein a fence (4) is arranged at the periphery of the flat plate (1); and an auxiliary wheel assembly is arranged between the flat plate (1); the auxiliary wheel assembly comprises a pair of support legs (5), auxiliary wheels (6) rotatably arranged at the bottoms of the support legs (5), a rotating shaft (7) connected to the tops of the support legs (5) and a contracting and releasing device used for movably contracting and releasing the support legs (5) and the auxiliary wheels (6); and the two ends of the rotating shaft (7) are hinged below the flat plate (1). According to the trolley, the original independent wheel is provided with two auxiliary wheels, when the trolley encounters a complex road surface, the auxiliary wheel assembly can fall off so as to participate in traveling, so that the trolley can keep balance more easily and can smoothly pass by the complex road surface, objects can be effectively prevented from dropping off, time and labor are saved, and the application range of the trolley is enlarged, and the trolley is quite applicable to fire safety.

Description

A kind of hand barrow

Technical field

The present invention relates to the technical field of wheelbarrow, relate in particular to a kind of hand barrow that guarantees driving balance at the technical improved energy of wheelbarrow, be particularly suitable for fire-fighting aspect and use.

Background technology

Wheelbarrow is because being used light and handy convenience, and transport routes width is unrestricted, applies comparatively extensive.Especially in rural area, people are when sowing, fertilising, harvesting, and wheelbarrow has become the good tool of the farming goods and materials such as transportation fertilizer, agricultural chemicals, cereal.Traditional wheelbarrow is generally that a plank in order to placing objects is set above wheel, during people's go-cart, also will put braces, so as to control wheelbarrow steadily and be unlikely to walk about during descending too fast.

On the other hand, also do not have at present a kind ofly can fast, effectively keep vehicle pulsation-free wheelbarrow, there is no a kind of hand barrow that is exclusively used in transportation fire fighting apparatus and materials, if this traditional wheelbarrow is as delivery fire-fighting article, have many defects: first yet, because plank surrounding does not arrange frame, while walking about, slightly do not note, article just easily drop, in actual use procedure, need wheelbarrow to keep good state of equilibrium; Second, wheelbarrow driving is steady not, if goods is heavier, with regard to easier lack of equilibrium, in the time of need to passing through complex road surface, the section of comparatively jolting such as stone road etc., walking is just painstaking especially, time-consuming effort again, meeting delay time, this makes traditional wheelbarrow use have larger limitation, uses and has inconvenience more.Thereby traditional wheelbarrow requires further improvement.

Summary of the invention

Technical matters to be solved by this invention is for prior art present situation, to provide a kind of and be easy to keep balance, can effectively prevent the hand barrow that article drop, and can guarantee to pass through smoothly complex road surface, time saving and energy saving, expands the Applicable scope of hand barrow.

The present invention solves the problems of the technologies described above adopted technical scheme: this hand barrow, and comprise flat board, the handrail being connected with flat board and be arranged on the wheel of dull and stereotyped below, it is characterized in that: described dull and stereotyped surrounding is provided with fence;

Described flat board is arranged with a jockey pulley assembly, the jockey pulley, one that this jockey pulley assembly comprises a pair of leg, be arranged on each leg bottom is rotationally connected to the rotating shaft at leg top and for the draw off gear of activity folding and unfolding leg and jockey pulley, the two ends of this rotating shaft are articulated in dull and stereotyped below.

Described draw off gear can adopt existing various technology, such as, on handrail, be provided with can hooking leg crotch, while not using jockey pulley, leg can be got up together with jockey pulley hooking.But move more freely for making the folding and unfolding of leg and jockey pulley, facilitate user's operation, preferably, described rotating shaft is positioned at the position near handrail handle part, described draw off gear comprises that one is arranged on the ratchet of periphery, rotating shaft one end, be connected to vertically pivot shaft and a spacing movable driving lever below handrail in rotating shaft, wherein, on this pivot shaft, be connected with one and be inverted Y-shaped limited location fork, the top of this limited location fork is connected with the end of described movable driving lever, the crotch of this limited location fork is rotatably connected to the top of pivot shaft, and in the movable gear teeth that snap onto ratchet of two divergent ends of this inverted Y-shaped limited location fork.By the structure design of ratchet, user's both hands are held up the handle part at handrail, hook the head of moving movable driving lever with finger, can operate at any time the folding and unfolding of leg and jockey pulley, very convenient.

Simply, handrail is spacing relatively through being fixed on the end of the fixed link on handrail for described movable driving lever.

Preferably, the head of described movable driving lever can have kink and facilitate user to pull.

Preferably, between the middle part of described leg, be connected with a connecting rod, to increase the firmness of jockey pulley assembly.

Preferably, be also provided with a brake gear on described wheel, the operation handlebar of this brake gear is fixed in handrail on relative that with movable driving lever place.

Traditional wheelbarrow all cannot dismounting, and overall volume is larger, and carrying is got up comparatively heavy, is not easy to carry with fire extinguishing tanker.As further improvement, described wheel top is connected with a slide plate, the bottom surface central authorities of described flat board be provided with one with the suitable slot part of slide plate, and slide plate is relative with slot part fixing by bolt.During assembling, slide plate, is fastened on slot part by bolt-through slide plate with regard to inserting in the slot of slot part, realizes mobile assembled and disassembled between wheel and flat board.

As further improvement, described fence is also designed to movablely be assembled in removably dull and stereotyped surrounding along upper, particularly, the fence base of the left and right sides is articulated in the dull and stereotyped left and right sides, the fence front and back end of the left and right sides is provided with vertical link slot, and the fence left and right side of both sides, front and back is embedded into respectively in adaptive link slot, and by plug and with together with the fence assembly connection of the left and right sides, thereby realize the whole dismantled and assembled combination of hand barrow, and easy accessibility, be easy to carry.

Compared with prior art, the invention has the advantages that: by the design of fence and jockey pulley assembly, make original single wheel be equipped with two jockey pulleys, when hand barrow runs into complex road surface, jockey pulley assembly can fall and participate in walking, thereby make hand barrow be easier to keep balance, pass through smoothly complex road surface, and can effectively prevent that article from dropping, time saving and energy saving, expanded the Applicable scope of hand barrow, be particularly suited for security against fire and use; Meanwhile, fence, wheel design are become to detachable, dismounting fence and wheel, then pack up after jockey pulley assembly, overall vehicle is flats, is easy to carry very much.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment of the present invention.

Fig. 2 is the three-dimensional exploded view of the embodiment of the present invention.

Fig. 3 is after embodiment of the present invention fence dismounting, the structural representation of jockey pulley assembly after packing up.

Fig. 4 is the structural representation that in the draw off gear of the embodiment of the present invention, limited location fork is controlled ratchet state one.

Fig. 5 is the structural representation that in the draw off gear of the embodiment of the present invention, limited location fork is controlled ratchet state two.

The specific embodiment

Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.

As shown in Fig. 1～Fig. 5, this hand barrow, comprise dull and stereotyped 1, with dull and stereotyped 1 handrail being connected 2, be arranged on the wheel 3 of dull and stereotyped 1 below, be removably assembled in four fences 4 of dull and stereotyped 1 left-right and front-back four sides.

Wherein, described wheel 3 tops are connected with a slide plate 32, dull and stereotyped 1 bottom surface central authorities be provided with one with the suitable slot part 11 of slide plate 32, after slide plate 32 insertings are in the slot of slot part 11, by a bolt 12 from last fixing with slot part 11 to up running through slide plate 32, thereby realize wheel 3 and flat board 1 detachable assembling.

On described wheel 3, be also provided with a brake gear, the operation handlebar 31 of this brake gear is fixed on handrail 2.

Fence 4 bases of the left and right sides are articulated in dull and stereotyped 1 the left and right sides, two edges, fence 4 front and back of the left and right sides are provided with vertical link slot 41, the fence 4 left and right sides of both sides, front and back are embedded into respectively in adaptive link slot 41, and by plug 42 and with together with fence 4 assembling of the left and right sides, thereby realize the detachable assembling of four fences 4 on dull and stereotyped 1.

Described dull and stereotyped 1 is arranged with a jockey pulley assembly, to be convenient to maintain hand barrow smooth running when the complicated highway section, the jockey pulley 6, that this jockey pulley assembly comprises a pair of leg 5, be arranged on each leg 5 bottoms is rotationally connected to the rotating shaft 7 at leg 5 tops and for the draw off gear of activity folding and unfolding leg 5 and jockey pulley 6;

Wherein, the ，Qi two ends, position that this rotating shaft 7 is positioned near handrail 2 handle parts are articulated in dull and stereotyped 1 below by being plugged in the axle bed 13 being fixed on dull and stereotyped 1 bottom surface, and this can rotate relative to flat board centered by rotating shaft 7 up and down to leg 5 and two jockey pulleys 6;

Between the middle part of described leg 5, be connected with a connecting rod 51;

Described draw off gear comprises that one is arranged on the ratchet 8 of rotating shaft 7 peripheries, one end, be connected to vertically pivot shaft 81 and a spacing movable driving lever 82 below handrail 2 in rotating shaft 7, wherein, on this pivot shaft 81, be connected with one and be inverted Y-shaped limited location fork 9, the top 91 of this limited location fork 9 is connected with the end of described movable driving lever 82, the crotch 92 of this limited location fork 9 is rotatably connected to the top of pivot shaft 81, two divergent ends 93 that make this inverted Y-shaped limited location fork 9 relatively ratchet 8 swing up and down, thereby two divergent ends 93 can be distinguished among the gear teeth 8a that (non-while) snap onto ratchet 8 and prevent that ratchet 8 and whole jockey pulley assembly from rotating,

Particularly, shown in Figure 4, pack up jockey pulley assembly, promotion activity driving lever 82 backward, inverted Y-shaped limited location fork 9 rotates centered by its crotch 92, the divergent ends 93 that is positioned at front side (relative usage person) in limited location fork 9 is embedded between the gear teeth 8a of ratchet 8, now, ratchet 8 and rotating shaft 7 rotate counterclockwise only, jockey pulley assembly is to clockwise rotate centered by rotating shaft 7 owing to putting down jockey pulley assembly, now, draw off gear has just limited clockwise rotating of jockey pulley assembly, reaches the function of packing up jockey pulley assembly;

Shown in Figure 5, pull forward movable driving lever 82, inverted Y-shaped limited location fork 9 rotates centered by its crotch 92, the divergent ends 93 that is positioned at rear side (relative usage person) in limited location fork 9 is embedded between the gear teeth 8a of ratchet 8, and now, ratchet 8 and rotating shaft 7 clockwise rotate only, jockey pulley assembly freely falls, jockey pulley 6 contact road surfaces and the walking of the whole hand barrow of balance restores balance hand barrow fast, and can prevent the revolution of jockey pulley assembly.

Meanwhile, handrail 2 is spacing relatively through being fixed on the end of the fixed link 21 on handrail 2 for described movable driving lever 82, and the head of described movable driving lever 82 has kink 83.

This activity driving lever 82 is relative with the operation handlebar of brake gear 31 positions in the position of handrail 2, makes hand of user can manipulation activities driving lever 82, and another hand manipulation operation is 31.

While not using hand barrow, four fences 4 and wheel 3 all detachably get off, and whole leg 5 and jockey pulley 6 get up by relatively dull and stereotyped 1 folding of draw off gear, thereby make whole hand barrow be flats, to take in volume and be reduced to minimum,, and install and remove quick, easy to carry.

Claims

1. a hand barrow, comprises flat board (1), the handrail (2) being connected with dull and stereotyped (1) and the wheel (3) that is arranged on flat board (1) below, it is characterized in that: described flat board (1) surrounding is provided with fence (4);

Described flat board (1) is arranged with a jockey pulley assembly, the jockey pulley (6), one that this jockey pulley assembly comprises a pair of leg (5), be arranged on each leg (5) bottom is rotationally connected to the rotating shaft (7) at leg (5) top and for the draw off gear of activity folding and unfolding leg (5) and jockey pulley (6), the two ends of this rotating shaft (7) are articulated in the below of flat board (1);

Described rotating shaft (7) is positioned at the position near handrail (2) handle part, described draw off gear comprises that one is arranged on the ratchet (8) of rotating shaft (7) periphery, one end, be connected to vertically pivot shaft (81) and a spacing movable driving lever (82) in handrail (2) below in rotating shaft (7), wherein, on this pivot shaft (81), be connected with one and be inverted Y-shaped limited location fork (9), the top (91) of this limited location fork (9) is connected with the end of described movable driving lever (82), the crotch (92) of this limited location fork (9) is rotatably connected to the top of pivot shaft (81), and in the movable gear teeth (8a) that snap onto ratchet (8) of two divergent ends (93) of this inverted Y-shaped limited location fork (9).

2. hand barrow as claimed in claim 1, is characterized in that: the head of described movable driving lever (82) has kink (83).

3. hand barrow as claimed in claim 1, is characterized in that: between the middle part of described leg (5), be connected with a connecting rod (51).

4. hand barrow as claimed in claim 1, it is characterized in that: described wheel is also provided with a brake gear on (3), the operation handlebar of this brake gear (31) is fixed in handrail (2) on relative that with movable driving lever (82) place.

5. hand barrow as claimed in claim 1 or 2 or 3 or 4, it is characterized in that: described wheel (3) top is connected with a slide plate (32), the bottom surface central authorities of described flat board (1) be provided with one with the suitable slot part (11) of slide plate (32), and slide plate (32) is relative fixing with slot part (11) by bolt (12).

6. hand barrow as claimed in claim 5, it is characterized in that: the fence of the left and right sides (4) base is articulated in the left and right sides of flat board (1), before and after the fence of the left and right sides (4), two edges are provided with vertical link slot (41), before and after fence (4) the left and right side of both sides be embedded into respectively in adaptive link slot (41), and by plug (42) and with together with fence (4) assembling of the left and right sides.