CN202593571U

CN202593571U - Handcart

Info

Publication number: CN202593571U
Application number: CN 201220271308
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: 2012-12-12
Anticipated expiration: 2022-06-09

Abstract

A handcart comprises a flat plate (1), a handrail (2) connected with the flat plate (1) and a wheel (3) arranged under the flat plate (1), wherein a fence (4) is arranged at the four sides of the flat plate (1); an auxiliary wheel assembly is arranged under the flat plate (1); the auxiliary wheel assembly comprises a pair of support legs (5), auxiliary wheels (6) rotatably arranged at the bottom of the support legs (5), a rotating shaft (7) connected to the tops of the support legs (5) and a retraction device for movably retracting the support legs (5) and the auxiliary wheels (6); and the two ends of the rotating shaft (7) are pivoted under the flat plate (1). The handcart is characterized in that the previous single wheel is provided with two auxiliary wheels; when the handcart runs on a complex road surface, the auxiliary wheel assembly can be dropped down for traveling so that the handcart is easy to keep balance and smoothly passes through the complex road surface; besides, articles can be effectively from falling off; and time and labor are saved and the application range of the handcart is expanded; therefore, the handcart is very suitable for fire protection.

Description

A kind of hand barrow

Technical field

The utility model relates to the technical field of wheelbarrow, relates in particular to a kind of hand barrow in the technical improved ability assurance driving balance of wheelbarrow, is particularly suitable for the fire-fighting aspect and uses.

Background technology

Wheelbarrow is because of using light and handy convenience, and the transport routes width is unrestricted, uses comparatively extensive.Especially in the rural area, people are when sowing, fertilising, harvesting, and wheelbarrow has become the good tool of farming goods and materials such as transportation fertilizer, agricultural chemicals, cereal.Traditional wheelbarrow generally is above wheel, to be provided with one in order to shelve the plank of article, also will put braces during people's go-cart, so as the 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, do not have a kind of hand barrow that is exclusively used in the transportation fire fighting apparatus and materials yet; If there are many defectives in this traditional wheelbarrow as delivery fire-fighting article: the first, because frame is not set around the plank; When walking about, do not notice slightly that article just drop easily; In the actual use, need wheelbarrow to keep state of equilibrium preferably; The second, the wheelbarrow driving is steady inadequately, if goods is heavier; Lack of equilibrium more easily just, when needing through complex road surface, the highway 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 bigger limitation, and use has inconvenience more.Thereby traditional wheelbarrow needs further to improve.

The utility model content

The utility model technical matters to be solved is to provide a kind of and be easy to keep balance to the prior art present situation, can effectively prevent the hand barrow that article drop, and can guarantee to pass through smoothly complex road surface, and is time saving and energy saving, the Applicable scope of expansion hand barrow.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this hand barrow, and comprise flat board, the handrail that links to each other with flat board and be arranged on the wheel of dull and stereotyped below, it is characterized in that: be provided with fence around the said flat board;

Said flat board is arranged with a jockey pulley assembly; This jockey pulley assembly comprises a pair of leg, is arranged on the draw off gear that the jockey pulley, of each leg bottom is connected the rotating shaft at leg top and is used for activity folding and unfolding leg and jockey pulley rotationally, and 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, handrail is provided with and can colludes the crotch of hanging leg, when not using jockey pulley, can leg be colluded together with jockey pulley and hang up.But for the folding and unfolding that makes leg and jockey pulley is moved more freely; Make things convenient for user's operation, preferably, said rotating shaft is positioned at the position near the handrail handle part; Said draw off gear comprises and one is arranged on the peripheral ratchet of rotating shaft one end, is connected a pivot shaft and a spacing movable driving lever below handrail in the rotating shaft vertically; Wherein, be connected with one on this pivot shaft and be inverted Y-shaped limited location fork, the top of this limited location fork links to each other with the end of said 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.Through the structure design of ratchet, user's both hands are held up the handle part at handrail, with pointing the head that colludes movable driving lever, can operate the folding and unfolding of leg and jockey pulley at any time, and are very convenient.

Simply, said movable driving lever passes the end that is fixed on the fixed link on the handrail and handrail is spacing relatively.

Preferably, the head of said movable driving lever can have kink and make things convenient for the user to spur.

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

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

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

As further improvement, said fence also is designed to the movable surrounding that is assembled in flat board removably along last, 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 sides side of both sides, front and back is embedded into respectively in the adaptive link slot, and connects with the fence assembling of the left and right sides through plug; Thereby realize the whole dismantled and assembled combination of hand barrow, and easy accessibility, be easy to carry.

Compared with prior art, the advantage of the utility model is: through the design of fence and jockey pulley assembly, make original single wheel be equipped with two jockey pulleys; When hand barrow ran into complex road surface, the jockey pulley assembly can fall and participate in walking, thereby makes hand barrow be easier to keep balance; Pass through complex road surface smoothly, and can prevent effectively that article from dropping, time saving and energy saving; Enlarged the Applicable scope of hand barrow, be particularly suited for security against fire and use; Simultaneously, fence, wheel design are become detachable, dismounting fence and wheel, pack up the jockey pulley assembly again after, overall vehicle is flats, is easy to carry very much.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

Fig. 2 is the three-dimensional exploded view of the utility model embodiment.

Fig. 3 is the structural representation after the utility model embodiment fence dismounting back, jockey pulley assembly are packed up.

Fig. 4 is the structural representation of limited location fork control ratchet state one in the draw off gear of the utility model embodiment.

Fig. 5 is the structural representation of limited location fork control ratchet state two in the draw off gear of the utility model embodiment.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Like Fig. 1～shown in Figure 5, this hand barrow comprises dull and stereotyped 1, the handrail 2 that links to each other with dull and stereotyped 1, the wheel 3 that is arranged on dull and stereotyped 1 below, removably is assembled in four fences 4 of dull and stereotyped 1 left-right and front-back, four sides.

Wherein, Said 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 spare 11 of slide plate 32; After slide plate 32 insertings are in the slot of slot spare 11, through a bolt 12 from last fixing with slot spare 11 to up running through slide plate 32, thereby realize wheel 3 and flat board 1 detachable assembling.

Also be provided with a brake gear on the said wheel 3, the operation handlebar 31 of this brake gear is fixed on the 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; Fence 4 left and right sides sides of both sides, front and back are embedded into respectively in the adaptive link slot 41; And through plug 42 and with 4 assemblings of the fence of the left and right sides, thereby realize the detachable assembling of four fences 4 on dull and stereotyped 1.

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

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

Be connected with a connecting rod 51 between the middle part of said leg 5;

Said draw off gear comprises and one is arranged on the peripheral ratchet 8 of rotating shaft 7 one ends, is connected a pivot shaft 81 and a spacing movable driving lever 82 below handrail 2 in the rotating shaft 7 vertically; Wherein, Be connected with one on this pivot shaft 81 and be inverted Y-shaped limited location fork 9; The top 91 of this limited location fork 9 links to each other with the end of said movable driving lever 82; The crotch 92 of this limited location fork 9 is rotatably connected to the top of pivot shaft 81, and two divergent ends 93 that make this inverted Y-shaped limited location fork 9 ratchet 8 relatively 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 prevents that ratchet 8 and whole jockey pulley assembly from rotating;

Particularly, referring to shown in Figure 4, pack up the jockey pulley assembly; Promotion activity driving lever 82 backward, inverted Y-shaped limited location fork 9 is that the center rotates with its crotch 92, the divergent ends 93 that is positioned at front side (user relatively) in the limited location fork 9 is embedded between the gear teeth 8a of ratchet 8; At this moment; Ratchet 8 and rotating shaft 7 rotate counterclockwise only, because the jockey pulley assembly is to be that the center clockwise rotates with rotating shaft 7 when putting down the jockey pulley assembly, at this moment; Draw off gear has just limited clockwise rotating of jockey pulley assembly, reaches the function of packing up the jockey pulley assembly;

Referring to shown in Figure 5, pulling activity driving lever 82 forward, inverted Y-shaped limited location fork 9 is that the center rotates with its crotch 92; The divergent ends 93 that is positioned at rear side (user relatively) in the limited location fork 9 is embedded between the gear teeth 8a of ratchet 8, and at this moment, ratchet 8 and rotating shaft 7 clockwise rotate only; The 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.

Simultaneously, said movable driving lever 82 passes the end of the fixed link 21 that is fixed on the handrail 2 and relatively handrail 2 is spacing, and the head of said movable driving lever 82 has kink 83.

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

When not using hand barrow; Four fences 4 all detachably get off with wheel 3, and whole leg 5 and jockey pulley 6 get up through dull and stereotyped relatively 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) that links to each other with dull and stereotyped (1) and the wheel (3) that is arranged on flat board (1) below, and it is characterized in that: said flat board (1) is provided with fence (4) all around;

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

2. hand barrow as claimed in claim 1; It is characterized in that: said rotating shaft (7) is positioned at the position near handrail (2) handle part; Said draw off gear comprises and one is arranged on the peripheral ratchet (8) of rotating shaft (7) one ends, is connected a pivot shaft (81) and a spacing movable driving lever (82) below handrail (2) in the rotating shaft (7) vertically; Wherein, Be connected with one on this pivot shaft (81) and be inverted Y-shaped limited location fork (9); The top (91) of this limited location fork (9) links to each other with the end of said movable driving lever (82), and 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).

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

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

5. hand barrow as claimed in claim 1 is characterized in that: said wheel also is provided with a brake gear on (3), and the operation handlebar of this brake gear (31) is fixed in the handrail (2) on relative that with movable driving lever (10) place.

5, like claim 1 or 2 or 3 or 4 described hand barrows; It is characterized in that: said wheel (3) top is connected with a slide plate (32); The bottom surface central authorities of said flat board (1) be provided with one with the suitable slot spare (11) of slide plate (32), and slide plate (32) is through bolt (12) and slot spare (11) relative fixed.

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); Two edges are provided with vertical link slot (41) before and after the fence of the left and right sides (4); Before and after fence (4) left and right sides side of both sides be embedded into respectively in the adaptive link slot (41), and through plug (42) and with fence (4) assembling of the left and right sides.