CN2465984Y - Automatic covering for bulk vehicle - Google Patents

Abstract

The utility model relates to an automatic cover for a bulk vehicle. The utility model is characterized in that an original vehicle hydraulic system which is additionally provided with an electrohydraulic valve, a hand-operated steering valve, an overflow valve, and a hydraulic lock is utilized to drive a power cylinder; a crank link mechanism can be driven to control a left and a right automatic vehicle covers which can be opened and closed when arranged on a vehicle. The utility model has the advantages of the transported material can be prevented from scattering on the way of transportation, achieving the effects of purifying cities, ensuring transportation safety, reducing manpower consumption, and reducing drivers' labour intensity. The utility model is especially suitable for the matched installation of various bulk transportation vehicles.

Description

Vehicle self-moving vehicle lid in bulk

The utility model belongs to the vehicle corollary apparatus, particularly a kind of automatic shutter car bonnet of vehicle in bulk.

Self-unloading vehicles in bulk such as existing dregs sandstone cover by tarpaulin entirely, can't stop to drop thing and airborne dust, the gross pollution city environment, it is dropped, and the unexpected injury that thing also often causes traffic police and pedestrian, particularly urban construction transport vehicle is working at night, to join four " power worker " and hang tarpaulin going out the entrucking point, costly, must climb to by the driver when unloading and roll up tarpaulin on the car, not only make the driver increase labour intensity, influence traffic safety, and the delay time.

The purpose of this utility model is to solve the problems referred to above that existing Bulk Truck exists, and a kind of automatic folding car bonnet of being controlled by hydraulic-driven on the big railway carriage or compartment of vehicle of vehicle in bulk that is installed in is provided.

Above-mentioned purpose is realized by following technical scheme:

Vehicle self-moving vehicle lid in bulk, but include the car bonnet that is installed in the automatic shutter on the big railway carriage or compartment of vehicle, it is characterized in that, also include the piston crank mechanism that opens and closes with the hinged promotion car bonnet of car bonnet, with piston crank mechanism bonded assembly transmission shaft and transmission and control the hydraulic actuator of piston crank mechanism, wherein

1-a, Movable car cover are divided into left and right two arc vault car bonnets with the cross section boundary of compartment longitudinal center;

1-b, piston crank mechanism is installed in the front portion, compartment, has a support arm that promotes by actuator cylinder, the center of gyration of fulcrum that this support arm is installed is on compartment longitudinal center cross section, also be connected with a big support arm on the fulcrum, this big support arm left side, right two ends are a hinged arm-tie respectively, the two arm-tie other ends are hinged with the lower end of a big rocking arm respectively separately, the top ends of two big rocking arms respectively with a left side, the portion of closing up of right car bonnet is hinged, the center of oscillation of two big support arms is on the same horizontal surface, one transmission shaft that extends to the rear portion, compartment from the front portion, compartment respectively is housed in the both sides, compartment, its two ends are fixed with a small rocker respectively, the other end of small rocker respectively with a left side, the front portion and the rear portion of right car bonnet are hinged;

1-c, hydraulic actuator include former car oil pump and change-over valve and set up the electro hydraulic valve in the oil pump exit, the by pass valve that is attached thereto, hand change over valve and hydraulic lock, and are communicated to actuator cylinder.

Fig. 1 is the utility model car bonnet piston crank mechanism position view when closing;

Fig. 2 is the utility model car bonnet piston crank mechanism position view when opening;

Fig. 3 is the left side view of Fig. 1;

Fig. 4 is the utility model power hydraulic system scheme drawing.

Below in conjunction with drawings and Examples the utility model is further elaborated.

As Fig. 1, Fig. 2 and shown in Figure 3, one cover crank connecting rod mechanism is housed on former compartment 3, when the piston rod of actuator cylinder 2.8 stretches out, promote support arm 12 and the center of gyration O1 spot wobble (the O1 point is positioned on the compartment longitudinal center cross section) of fulcrum I is installed around it, fulcrum I drives big support arm 13 swings that connect with it simultaneously, at big two ends, the support arm left and right sides, be hinged with two arm-tie 14a and 14b respectively, the other end of this two arm-tie is hinged with the lower end of big rocking arm 15a and 15b separately, two big rocking arms have the shape of symmetric curvature, the center O 2a of its fulcrum and O2b are on the same horizontal surface, its top is from each and a left side, the right car bonnet place of closing up is hinged, it is that matrix drives both sides pivotally attached small rocker 16a and 16b with it by car bonnet 17a and 17b that arm-tie spurs big rocking arm, the other end of this small rocker connects with the transmission shaft 19a of both sides, compartment and 19b respectively and drives transmission shaft and rotates, the axle O3a and the O3b of this two transmission shaft are on the same horizontal surface, axial length extends to the rear portion, compartment, and drive be contained in its rear end and with car bonnet rear portion pivotally attached small rocker 16c, 16d swing can be propped car bonnet to open to hang on the two lateral walls outside, compartment or close up and close in car body top reposefully.

As shown in Figure 4, hydraulic efficiency gear 2 of the present utility model utilizes former car oil pump 203, change-over valve 202 is set up an electro hydraulic valve 24 in the middle of its outlet conduit, connect by pass valve 25, hand change over valve 26, connect hydraulic lock 27, lead to actuator cylinder 28, when 25 work of electro hydraulic valve 24 commutation by pass valves, oil pump 203, change-over valve 202 quits work; Hand change over valve 26 commutation makes oil cylinder 28 produce pressure and works from the pressure oil of hydraulic lock 27, drives support arm 12 swings Movable car cover is opened or closed.When electro hydraulic valve 24 resets, car bonnet does not have locomitivity, and this moment, former car hydraulic gear produced motion work.

By evidence, the utlity model has following good effect:

1, toggle and hydraulic system are safe and reliable, and car bonnet opens and closes steadily;

2, no longer include projected object, purified environment, guaranteed traffic safety;

3, labor savings;

4, simple in structure, to be convenient to make and to install, with low cost being easy to promoted.

Claims (2)

1, a kind of vehicle self-moving vehicle lid in bulk, but include the car bonnet that is installed in the automatic shutter on the big railway carriage or compartment of vehicle, it is characterized in that, also include the piston crank mechanism that opens and closes with the hinged promotion car bonnet of car bonnet, with piston crank mechanism bonded assembly transmission shaft and transmission and control the hydraulic actuator of piston crank mechanism, wherein

1-a, Movable car cover are divided into left and right two arc vault car bonnets with the cross section boundary of compartment longitudinal center;

1-b, piston crank mechanism is installed in the front portion, compartment, has a support arm that promotes by the actuator cylinder piston, the center of gyration of fulcrum that this support arm is installed is on compartment longitudinal center cross section, also be connected with a big support arm on the fulcrum, this big support arm left side, right two ends are a hinged arm-tie respectively, the two arm-tie other ends are hinged with the lower end of a big rocking arm respectively separately, the top ends of two big rocking arms respectively with a left side, the portion of closing up of right car bonnet is hinged, the center of oscillation of two big support arms is on the same horizontal surface, one transmission shaft that extends to the rear portion, compartment from the front portion, compartment respectively is housed in the both sides, compartment, its two ends are fixed with a small rocker respectively, the other end of small rocker respectively with a left side, the front portion and the rear portion of right car bonnet are hinged;

1-c, hydraulic actuator include former car oil pump and change-over valve and set up the electro hydraulic valve in the oil pump exit, the by pass valve that is attached thereto, hand change over valve and hydraulic lock, and are communicated to actuator cylinder.

2, automatic car bonnet according to claim 1 is characterized in that left and right two big rocking arms have the shape of symmetric curvature.

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