CN211223204U

CN211223204U - Split type top cover device for dump truck cargo box and dump truck

Info

Publication number: CN211223204U
Application number: CN201922044172.XU
Authority: CN
Inventors: 黄立新; 罗要西; 向泽山
Original assignee: Sany Special Vehicle Co Ltd
Current assignee: Sany Special Vehicle Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-08-11
Anticipated expiration: 2029-11-25

Abstract

The utility model provides a split type top cover device for a container of a dump truck and the dump truck, wherein the split type top cover device for the container of the dump truck comprises a top cover arranged on the container and a turnover mechanism for driving the top cover to open and close the container; the top cover comprises a first cover plate, a second cover plate and a driving mechanism; the first cover plate is internally provided with a cavity, one end of the first cover plate is provided with a first opening communicated with the cavity, and the turnover mechanism is connected with the first cover plate; the second cover plate is connected with the first cover plate in a sliding manner; the driving mechanism is connected with the first cover plate and the second cover plate so as to drive the second cover plate to extend out of or retract into the cavity from the first opening; wherein the second flap retracts into the cavity when the top lid opens the cargo box and extends out of the cavity when the top lid closes the cargo box. Through the technical scheme of the utility model, reduced the protrusion length of top cap in the driver's cabin top effectively, enlarged the interior user's of driver's cabin field of vision, reduced the oppression sense to the user, promoted the convenience that the tipper used in narrow and small space.

Description

Split type top cover device for dump truck cargo box and dump truck

Technical Field

The utility model relates to an engineering equipment technical field particularly, relates to a tipper is split type top cap device and a tipper for packing box.

Background

At present, the tipper is generally all covered with the apron on the packing box, and the apron is used for preventing that the dregs in the packing box from raising dust on the way and leaking and shedding, avoids causing secondary pollution and destruction to the urban environment.

Some dump trucks are provided with turnover cover plates, and the turnover cover plates cover the top of the cargo box when in work; when loading and unloading the vehicle, overturning to the upper part of the cab through the overturning device; because this kind of apron all is overall structure generally, after overturning to the driver's cabin top, the front end of apron often surpasss the driver's cabin, and the protrusion is longer, and the extension length reaches more than 3 meters even, influences the user field of vision scope in the driver's cabin to form very strong oppression sense, in addition, required working space is great when the tipper loads, and the use of tipper in specific narrow and small space is not convenient for to this kind of forward extension apron.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to at least one of the problems of the prior art or the related art.

In view of this, an object of the utility model is to provide a split type top cap device is used to tipper packing box.

Another object of the utility model is to provide a tipper.

In order to achieve the above object, the present invention provides a split top cover device for a cargo box of a dump truck, which comprises a top cover arranged on the cargo box and a turnover mechanism for driving the top cover to open and close the cargo box, wherein the top cover comprises a first cover plate, a second cover plate and a driving mechanism; the first cover plate is internally provided with a cavity, one end of the first cover plate is provided with a first opening communicated with the cavity, and the turnover mechanism is connected with the first cover plate; the second cover plate is connected with the first cover plate in a sliding manner; the driving mechanism is connected with the first cover plate and the second cover plate and is used for driving the second cover plate to extend out of or retract into the cavity from the first opening; wherein the second flap retracts into the cavity when the top lid opens the cargo box and extends out of the cavity when the top lid closes the cargo box.

In this technical scheme, through set up the cavity in first apron, make the second apron can stretch out or retract the cavity from first opening part, area and length can be reduced through the mode of shrink to the top cap promptly, reduce the space that occupies, the top cap that has reduced area and length like this is after the top of the driver's cabin of accomodating the tipper, the length that can reduce the protrusion or do not have protrusion length at all, thereby reduce the influence to the user field of vision in the driver's cabin, can also reduce and form the sense of oppression to the user, in addition, because the top cap has reduced the space that occupies, still be favorable to the use of tipper in specific narrow and small space like this, the application range of tipper has been enlarged.

Specifically, the first cover plate is provided with a cavity, so that the second cover plate can retract into the cavity of the first cover plate through the first opening, the length of the top cover in the front-back direction of the vehicle body can be reduced, or the forward extending length of the top cover can be reduced, the space occupation of the top cover in the height direction of the vehicle can be kept or reduced, namely the height of the top cover after contraction is equal to that of the first cover plate, and the use of the dump truck in a specific narrow space is facilitated; after the second cover plate extends out of the first opening, the area of the top cover can be enlarged, so that the purposes of closing a container of the dump truck, reducing dust emission and leakage and throwing can be achieved; the driving mechanism is arranged to drive the second cover plate, so that the second cover plate does not need to be manually operated by a user when being extended and retracted, the automation level of the extension and retraction of the top cover is improved, and the working intensity of the user is reduced; the arrangement of the turnover mechanism can turn the top cover over to the cab, so that the purpose of opening the container is achieved, and the top cover is convenient to move.

In the above technical solution, the driving mechanism is a telescopic device; the first cover plate is also provided with a bottom wall opposite to the first opening, and one end of the telescopic device is connected to the bottom wall; the second apron has the link that is close to the diapire and keeps away from the free end of diapire, and telescoping device's the other end is connected with the free end.

In the above technical scheme, the second cover plate is provided with an accommodating cavity for accommodating the telescopic device, and the other end of the telescopic device extends into the second cover plate from the accommodating cavity and is connected with the free end.

In any of the above technical solutions, a sliding assembly is disposed between the first cover plate and the second cover plate, the sliding assembly includes a slider and a sliding slot that are matched with each other, one of the slider and the sliding slot is disposed on the first cover plate, the other one is disposed on the second cover plate, and the slider is a bar-shaped slider, a ball, or a roller.

In any one of the above technical solutions, the first cover plate is provided with a first limiting structure, and the first limiting structure is used for limiting the connecting end of the second cover plate from extending out of the first opening; or when the top cover closes the container, the distance between the bottom wall of the first cover plate and the free end of the second cover plate is smaller than the sum of the lengths of the first cover plate and the second cover plate in the telescopic direction.

In any one of the above technical solutions, the split type roof apparatus for a cargo box of a dump truck further includes: and the at least one third cover plate is arranged between the first cover plate and the second cover plate, and the at least one third cover plate, the first cover plate and the second cover plate are sequentially sleeved along the telescopic direction.

The utility model discloses technical scheme of second aspect provides a tipper, include: a chassis; the cargo box is arranged on the chassis, and a second opening is formed in the top of the cargo box; the cab is arranged on the chassis; the split type top cover device for the dump truck cargo box in any one of the above first aspect is used for opening and closing the second opening, when the split type top cover device for the dump truck cargo box opens the second opening, the second cover plate of the split type top cover device for the dump truck cargo box retracts into the cavity on the first cover plate of the split type top cover device for the dump truck cargo box, and the first cover plate and the second cover plate are located above the cab.

In the technical scheme, the split type top cover device for the dump truck cargo box has all the beneficial effects of the technical scheme by adopting the split type top cover device for the dump truck cargo box in any one technical scheme, and the details are not repeated; through the arrangement of the chassis, parts such as a cargo box and the like can be installed; the top of the container is provided with a second opening, so that the cargo can be conveniently loaded and unloaded; the container of the dump truck is movably connected with the container by a split type top cover device, so that the top cover can leave the second opening to open the container when the dump truck needs to load the goods, and the top cover can move back to the second opening to close the second opening after the goods are loaded, thereby avoiding dust raising or leakage and throwing; in addition, when the second opening is opened, the first cover plate retracts into the cavity of the first cover plate, the area and the front extension degree of the top cover can be reduced, meanwhile, the first cover plate and the second cover plate are located above the cab, the second opening can be opened to the greatest extent, the mounting and dismounting operation is facilitated, and after the area and the front extension degree of the top cover are reduced, the visual field influence on a user in the cab can be reduced, and the oppressive feeling is reduced.

In the technical scheme, the turnover mechanism of the split top cover device for the cargo box of the dump truck comprises a front turnover arm, a rear turnover arm and a power component, wherein the upper ends of the front turnover arm and the rear turnover arm are respectively hinged with a first cover plate, the lower ends of the front turnover arm and the rear turnover arm are respectively hinged with the side wall of the cargo box, one end of the power component is hinged with the front turnover arm or the rear turnover arm, and the other end of the power component is hinged with the side wall of the cargo box.

In the technical scheme, the front turning arm and the rear turning arm are bent or arc or straight rods, and the power part is a turning oil cylinder or a turning air cylinder.

In the technical scheme, the driving mechanism of the split top cover device for the cargo box of the dump truck is an oil cylinder, an oil inlet and outlet pipeline of the oil cylinder is positioned below the first cover plate and arranged along the front turning arm and/or the rear turning arm, and the front turning arm and/or the rear turning arm is/are axially provided with a pipeline channel for accommodating the oil inlet and outlet pipeline.

In any one of the above technical solutions, the dump truck further includes: and the second limiting structure is arranged on the side wall of the container and used for limiting the limit position of the turnover mechanism.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

Fig. 1 is a perspective structure schematic view of a split type top cover device for a container of a dump truck according to an embodiment of the present invention;

fig. 2 is a perspective schematic structural view of a split type top cover device for a container of a dump truck according to another embodiment of the present invention;

fig. 3 is a perspective structure diagram of the dump truck according to an embodiment of the present invention;

fig. 4 is a perspective schematic view of a dump truck according to another embodiment of the present invention;

fig. 5 is a perspective schematic view of a dump truck according to still another embodiment of the present invention;

fig. 6 is a perspective schematic view of a dump truck according to still another embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:

10 top covers, 100 first cover plates, 102 second cover plates, 1020 connecting ends, 1022 free ends, 104 telescopic devices, 12 chassises, 14 containers, 16 turning mechanisms, 160 front turning arms, 162 rear turning arms, 164 turning cylinders, 22 limiting blocks and 24 cabs.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings, which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Some embodiments according to the invention are described below with reference to fig. 1 to 6.

As shown in fig. 1 and 2, the split type top cover device for a cargo box of a dump truck according to one embodiment of the present invention includes a top cover 10 provided on the cargo box 14, and a turnover mechanism 16 for driving the top cover 10 to open and close the cargo box 14, wherein the top cover 10 includes: a first cover plate 100, a second cover plate 102, and a retractor 104.

Specifically, a cavity is formed in the first cover plate 100, and one end of the first cover plate 100 is provided with a first opening communicated with the cavity; the second cover plate 102 is arranged in the cavity; one end of the telescopic device 104 is connected with the first cover plate 100, the other end of the telescopic device 104 is connected with the second cover plate 102, and the second cover plate 102 is connected with the first cover plate 100 in a sliding manner; the telescopic device 104 is used as a driving mechanism for driving the second cover plate 102 to extend out of or retract into the cavity from the first opening; the turnover mechanism 16 is connected with the first cover plate 100; when the top cover 10 opens the cargo box 14, the second cover plate 102 retracts into the cavity, and the top cover 10 is turned over to the upper part of the cab 24 of the dump truck by the turnover mechanism 16; when the header 10 closes the cargo box 14, the second flaps 102 extend out of the cavity and the header 10 is inverted by the inversion mechanism 16 to the cargo box 14 to close it.

It is understood that the driving mechanism is not limited to the telescoping device 104, and may be an electric motor or a motor, i.e., the second cover plate 102 is pulled to move by the electric motor or the motor, and further, the telescoping device 104 includes any one of an air cylinder, a hydraulic oil cylinder, and an electric push rod.

In this embodiment, the cavity is arranged in the first cover plate 100, so that the second cover plate 102 can extend out of or retract into the cavity from the first opening, that is, the top cover 10 can reduce the area and the length in a shrinking manner, and reduce the occupied space, after the top cover 10 with the reduced area and length is accommodated above the cab 24 of the dump truck, the length extending forwards can be reduced or the length extending forwards is not provided at all, thereby reducing the influence on the view field of a user in the cab 24, and reducing the oppressive feeling formed to the user.

Specifically, the first cover plate 100 is provided with a cavity, so that the second cover plate 102 can be retracted into the cavity of the first cover plate 100 through the first opening, thereby not only reducing the length of the roof cover 10 in the front-rear direction of the vehicle body, or reducing the length of the roof cover 10 in the forward direction, but also keeping or reducing the space occupation of the roof cover 10 in the height direction of the vehicle, namely, the height of the roof cover 10 after being contracted is equal to the height of the first cover plate 100, and thus, the use of the dump truck in a specific narrow space is facilitated; after the second cover plate 102 extends out of the first opening, the area and the length of the top cover 10 can be enlarged, so that the second opening at the top of the cargo box 14 of the dump truck can be covered, and the purposes of reducing dust emission and leakage and throwing can be achieved; the second cover plate 102 is driven by the telescopic device 104, so that the second cover plate 102 does not need to be manually operated by a user to extend and retract, the automation level of the extension and retraction of the top cover 10 is improved, and the working strength of the user is reduced; the turnover mechanism 16 is provided to turn the roof 10 over the cab for the purpose of opening the cargo box 14 and to facilitate movement of the roof 10.

It will be appreciated that the canting mechanism 16 includes a front canting arm 160 and a rear canting arm 162, and is simple to construct and easy to install and maintain.

As shown in fig. 3, it can be understood that the front and rear directions of the vehicle body are referred to the front and the rear of the vehicle, i.e. the front is the front and the rear is the rear; the vehicle height direction is the direction from the bottom of the vehicle to the roof of the vehicle.

Further, the telescopic device 104 is disposed inside the top cover 10, i.e., in a cavity of the first cover plate 100.

Through setting up telescoping device 104 in the cavity of first apron 100, be favorable to avoiding the telescoping device 104 to occupy the exterior space of top cap 10 like this, and then be favorable to promoting the use of tipper in specific narrow and small space, still be favorable to simplifying the structure of top cap 10 to form the protection to telescoping device 104 through first apron 100, avoid dregs, raise dust to lead to in the impurity gets into telescoping device 104 to lead to the use trouble.

Specifically, the first cover plate 100 further has a bottom wall disposed opposite to the first opening, and one end of the telescopic device 104 is connected to the bottom wall; the second cover plate 102 is provided with a connecting end 1020 close to the bottom wall and a free end 1022 far away from the bottom wall, and the other end of the telescopic device 104 is connected with the free end 1022, so that on the premise that the telescopic device 104 is always positioned in the top cover 10, the structure is simplified, the maximum extension length of the telescopic device 104 is increased, the second cover plate 102 can extend out of the first cover plate 100 as far as possible, the coverage area of a container 14 of the dump truck is ensured, and dust raising and leakage throwing are reduced.

It will be appreciated that the above-described connection of the telescopic device 104 can be extended and retracted in only one stage to maintain a longer length, which is simpler than the multi-stage telescopic device 104.

As shown in fig. 1, in the above embodiment, the second cover plate 102 is provided with a receiving cavity for receiving the retractable device, and the other end of the retractable device extends into the second cover plate 102 from the receiving cavity and is connected to the free end 1022, that is, the retractable device 104 passes through the receiving cavity in the second cover plate 102 and is then connected to the free end 1022, which is beneficial to lifting the position of the retractable device 104 in the top cover 10 and reducing the possibility of exposing the retractable device 104 to the outside, thereby reducing the use failure of the retractable device 104, and being beneficial to disposing the retractable device 104 at a position closer to the middle of the top cover 10, and when extending and shortening, the first cover plate 100 and the second cover plate 102 are stressed more balanced and have a simple structure.

In other embodiments, at least a portion of the retraction device 104 may be disposed outside of the top cover 10, it being understood that the motor or motors as the drive mechanism may likewise be disposed outside or inside of the top cover 10.

In any of the above embodiments, a sliding assembly (not shown) is disposed between the first cover plate 100 and the second cover plate 102, the sliding assembly includes a roller and a sliding slot, or a sliding block and a sliding slot, or a ball and a sliding slot, and the roller, the ball, and the sliding block are all sliders; the friction between the first cover plate 100 and the second cover plate 102 is reduced, the smoothness of extension and retraction of the second cover plate 102 is improved, the working efficiency is improved, the abrasion between the first cover plate 100 and the second cover plate 102 can be reduced, and the service life of the split type top cover device for the cargo box of the dump truck is prolonged.

In any of the above embodiments, the first cover plate 100 is provided with a first limiting structure, and the first limiting structure is used for limiting the connecting end 1020 of the second cover plate 102 from extending out of the first opening; or the distance between the bottom wall of the first header 100 to the free end 1022 of the second header 102 when the header 10 closes the cargo box 14 is less than the sum of the lengths of the first header 100 and the second header 102 in the telescoping direction.

In this embodiment, the first limiting structure is arranged to limit the connection end 1020 of the second cover plate 102 from extending out of the first opening, that is, the second cover plate 102 cannot extend out completely when extending out of the first cover plate 100, but partially overlaps the first cover plate 100, so that when the second cover plate 102 extends out and closes the cargo box 14 with the first cover plate 100, no gap is left between the first cover plate 100 and the second cover plate 102 in the front-rear direction of the vehicle body, thereby improving the sealing performance of the cargo box 14, reducing dust raising or leakage and throwing, and preventing rain and snow from entering the cargo box 14 in weather such as rain and snow; it will be appreciated that the distance between the bottom wall of the first header 100 and the free end 1022 of the second header 102 when the cargo box 14 is closed is less than the sum of the lengths of the first header 100 and the second header 102 in the telescoping direction, again such that the second header 102 does not extend fully beyond the first header 100 but rather partially overlaps the first header 100, thereby improving the seal against the cargo box 14.

The first position-limiting structure may be a position-limiting protrusion, a position-limiting plate, or a position-limiting groove disposed at the first opening, and the position-limiting groove is used to limit the position of the roller or the ball when the roller or the ball is disposed between the first cover plate 100 and the second cover plate 102.

In any one of the above embodiments, the split roof apparatus for a dump truck cargo box further comprises: at least one third apron (not shown), locate between first apron 100 and the second apron 102, at least one third apron cup joints along the direction of stretching out and drawing back with first apron 100, second apron 102 in proper order, and such structure can realize the multistage flexible of top cap 10, further reduces the length of top cap 10 after the shrink to further reduce its length that stretches out and draws back, reduce the space and occupy, and then reduce the visual field influence and the sense of oppression to the user in driver's cabin 24.

It can be understood that the second cover plate 102 and the third cover plate are both hollow structures, which is convenient for the arrangement of the telescopic device 104 on one hand, and is also beneficial to reducing the weight of the top cover 10 and the load of the dump truck.

As shown in fig. 3 to 6, an embodiment of the second aspect of the present invention provides a dump truck, including: a chassis 12; a cargo box 14 arranged on the chassis 12, wherein a second opening is formed at the top of the cargo box 14; a cab 24 provided on the chassis 12; the split roof apparatus for a cargo box of a dump truck according to any of the embodiments of the first aspect described above is configured to open and close the second opening, and when the second opening is opened by the split roof apparatus for a cargo box of a dump truck, the second cover plate 102 of the split roof apparatus for a cargo box of a dump truck retracts into the cavity on the first cover plate 100 of the split roof apparatus for a cargo box of a dump truck, and the first cover plate 100 and the second cover plate 102 are located above the cab 24.

In this embodiment, by adopting the split type top cover device for the dump truck cargo box of any one of the above embodiments, all the beneficial effects of the above embodiments are achieved, and no further description is given here; by arranging the chassis 12, a cargo box 14 and the like can be installed; the top of the container 14 is provided with a second opening for facilitating loading and unloading of goods; the cargo box of the dump truck is movably connected with the cargo box 14 by a split type top cover device, as shown in fig. 4, 5 and 6, so that the top cover 10 can be separated from the second opening to open the second opening when the dump truck needs to load the cargo; after the cargo loading is completed, the top cover 10 can be moved back to the second opening to close the second opening, as shown in fig. 3, so as to prevent dust or leakage from being thrown; in addition, when the second opening is opened, the second cover 102 is retracted into the cavity of the first cover 100, so that the area and the front extension of the roof cover 10 can be reduced, and meanwhile, the first cover 100 and the second cover 102 are positioned above the cab 24, so that the second opening can be opened to the maximum extent, thereby facilitating the loading and unloading operation, and after the area and the extension of the roof cover 10 are reduced, the influence on the visual field of a user in the cab 24 can be reduced, and the oppressive feeling can be reduced.

As shown in fig. 5 and 6, further, the turnover mechanism 16 of the split-type top cover device for the cargo box of the dump truck comprises a front turnover arm 160, a rear turnover arm 162 and a power part, wherein the upper ends of the front turnover arm 160 and the rear turnover arm 162 are respectively hinged with the first cover plate 100, the lower ends of the front turnover arm 160 and the rear turnover arm 162 are respectively hinged with the side wall of the cargo box 14, one end of the power part is hinged with the front turnover arm 160 or the rear turnover arm 162, and the other end of the power part is hinged with the side wall of the cargo box 14, so that the arrangement of the front turnover arm 160 and the rear turnover arm 162 facilitates the turnover of the top cover 10 out of the second opening when loading the cargo, completely opens the second opening to facilitate loading of the cargo, and after the loading of the cargo is completed, the top cover 10 is turned back to the second opening by the two turnover arms, and the second cover plate 102 is driven by the telescopic device 104 to extend out, therefore, the manual operation for moving and overturning the top cover 10 is reduced, the working strength is reduced, and the automation performance of the dumper is improved.

It should also be noted that since the roof 10 of the split roof device for a dump truck cargo box can be retracted, the area and length thereof can be reduced, and accordingly, the number of the turnover mechanisms 16 can be reduced accordingly, thereby saving components and simplifying the structure.

It is understood that the front and rear turning

arms

160, 162 may be bent or curved or straight, respectively; the power part is the turnover oil cylinder 164 or the turnover air cylinder, so that the turnover mechanism 16 does not need to be driven manually, the working strength is reduced, and the working efficiency is improved.

Further, the upper ends of the front and

rear turnover arms

160 and 162 are hinged to the first cover 100 of the top cover 10, respectively, without being hinged to the second cover 102, thereby preventing interference, and reducing the number of turnover mechanisms 16, and saving parts.

In the above embodiment, the driving mechanism of the split-type top cover device for the cargo box of the dump truck is an oil cylinder, an oil inlet and outlet pipeline of the oil cylinder is positioned below the first cover plate 100 and is arranged along the front turning arm 160 and/or the rear turning arm 162, and a pipeline channel for accommodating the oil inlet and outlet pipeline is axially arranged on the front turning arm 160 and/or the rear turning arm 162.

In the above embodiment, the dump truck further includes: and the second limiting structure is arranged on the side wall of the container 14 and is used for limiting the limit position of the turnover mechanism 16, so that the position of the top cover 10 can be limited by limiting the limit position of the turnover mechanism 16, the top cover 10 is ensured to cover the second opening, and the top cover 10 is prevented from sliding off the top of the dump truck.

The second limiting structure may be specifically configured as the limiting block 22 to limit the rotation angle of the front or

rear turning arm

160 or 162 in the counterclockwise direction in fig. 3 to 6.

According to the dumper with the split type cover plate provided by the embodiment of the application, the working space required for loading the container 14 can be reduced.

The utility model provides a take tipper of split type apron device, includes that the tipper is split type top cap device for the packing box, and the tipper is split type top cap device for the packing box includes two piece at least split type apron, flexible cooperation between the adjacent apron, and at least one apron is hollow structure, establishes telescoping device 104 in, through telescoping device 104, can contract polylith apron in an apron, and rethread tilting mechanism 16 overturns the apron to 24 tops in driver's cabin.

The following description will take the split roof device for the cargo box of the dump truck with two cover plates as an example.

The dump truck is provided with a split type top cover device, the split type top cover device comprises a top cover 10 arranged on a cargo box 14 and a turnover mechanism 16 for driving the top cover 10 to open and close a second opening at the top of the cargo box 14, the top cover 10 comprises two cover plates, and the two cover plates are connected with the cargo box 14 through the turnover mechanism 16.

The top cover 10 includes two cover plates, a first cover plate 100 and a second cover plate 102, and the second cover plate 102 is telescopically arranged in the first cover plate 100.

Specifically, the turnover mechanism 16 includes a power component and a link mechanism, wherein the power component may be a turnover cylinder 164 or a turnover cylinder; the link mechanism comprises a front turning arm 160 and a rear turning arm 162, the front turning arm 160 and the rear turning arm 162 can be bent, also can be arc-shaped, and also can be straight rods, and the selection and matching can be carried out according to specific requirements, for example, the straight rods have less materials and can improve the support strength, and the interference can be reduced due to the bent shape; as shown in fig. 3, the upper ends of the front and rear turning

arms

160 and 162 are hinged to the first cover 100, and the lower ends of the front and rear turning

arms

160 and 162 are hinged to the side walls of the cargo box 14.

A stop block 22 is also provided on the side wall of cargo box 14 as a second stop structure for defining the limit position of front or

rear turnover arm

160, 162 and thus indirectly the limit position of first and

second cover panels

100, 102.

Further, the first cover plate 100 is a hollow structure, and a telescopic device 104 is arranged in the first cover plate 100, and the telescopic device 104 is used for driving the second cover plate 102 to extend outwards and retract inwards relative to the first cover plate 100; the telescopic device 104 can be an oil cylinder, an oil inlet and outlet pipeline of the oil cylinder can be arranged on a connecting rod mechanism, and preferably, the connecting rod mechanism is of a hollow structure; it is understood that the expansion device 104 may also be a pneumatic cylinder.

Fig. 3 shows the container 14 in a sealed condition, or in a transport condition of the dump truck; as shown in fig. 3, the ordinary transportation state: the first and

second flaps

100, 102 are deployed to close the cargo box 14.

And (3) loading state: the roof 10 includes a first cover 100 and a second cover 102, and fig. 4 shows a contracted state of the roof 10 on the dump truck; as shown in fig. 4, the first cover plate 100 and the second cover plate 102 are in telescopic sliding fit, the first cover plate 100 is a hollow structure and is provided with a telescopic device 104 therein, the second cover plate 102 can be retracted inside the first cover plate 100 through the telescopic device 104, fig. 5 shows an intermediate state that the top cover 10 is turned, and fig. 6 shows a state that the top cover 10 is turned over the cab 24, so that the second opening of the cargo box 14 is opened; as shown in fig. 5 and 6, the first and

second covers

100 and 102 in the retracted state are then turned over to the top of the cab 24 by the power unit and the link mechanism.

The specific embodiment has the following beneficial effects:

the operation space that the top cap switched in different states is less, and for current structure, can adapt to the use in the specific narrow and small space, enlarges the user field of vision, reduces the sense of oppression.

Above combine the figure to describe in detail the technical scheme of the utility model, through the utility model discloses a technical scheme has reduced area and length of tipper's top cap after upset to driver's cabin top effectively, has reduced the protrusion length of top cap, has enlarged user's in the driver's cabin field of vision, has reduced the oppression sense to the user, has promoted the convenience that the tipper used in narrow and small space.

In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a tipper is split type top cap device for packing box, includes establishes the top cap on the packing box and drives the top cap opens and closes the tilting mechanism of packing box which characterized in that:

the top cover (10) comprises a first cover plate (100), a second cover plate (102) and a driving mechanism;

a cavity is arranged in the first cover plate (100), a first opening communicated with the cavity is formed in one end of the first cover plate (100), and the turnover mechanism (16) is connected with the first cover plate (100);

the second cover plate (102) is connected with the first cover plate (100) in a sliding mode;

the driving mechanism is connected with the first cover plate (100) and the second cover plate (102), and is used for driving the second cover plate (102) to extend out of the first opening or retract into the cavity;

wherein the second flap (102) retracts into the cavity when the header (10) opens the cargo box (14) and wherein the second flap (102) extends out of the cavity when the header (10) closes the cargo box (14).

2. The split roof apparatus for a dump truck cargo box according to claim 1,

the driving mechanism is a telescopic device (104);

the first cover plate (100) is also provided with a bottom wall opposite to the first opening, and one end of the telescopic device (104) is connected to the bottom wall;

the second cover plate (102) is provided with a connecting end (1020) close to the bottom wall and a free end (1022) far away from the bottom wall, and the other end of the telescopic device (104) is connected with the free end (1022).

3. The split roof apparatus for a dump truck cargo box according to claim 2,

the second cover plate (102) is provided with an accommodating cavity for accommodating the telescopic device (104), and the other end of the telescopic device (104) extends into the second cover plate (102) from the accommodating cavity and is connected with the free end (1022).

4. The split roof apparatus for a cargo box of a dump truck according to any one of claims 1 to 3,

a sliding assembly is arranged between the first cover plate (100) and the second cover plate (102), the sliding assembly comprises a sliding piece and a sliding groove which are matched with each other, one of the sliding piece and the sliding groove is arranged on the first cover plate (100), the other one of the sliding piece and the sliding groove is arranged on the second cover plate (102), and the sliding piece is a strip-shaped sliding block or a ball or a roller.

5. The split roof apparatus for a cargo box of a dump truck according to any one of claims 1 to 3,

a first limiting structure is arranged on the first cover plate (100), and the first limiting structure is used for limiting the connecting end (1020) of the second cover plate (102) to extend out of the first opening; or

When the top cover (10) closes the container (14), the distance between the bottom wall of the first cover panel (100) and the free end (1022) of the second cover panel (102) is smaller than the sum of the lengths of the first cover panel (100) and the second cover panel (102) in the telescopic direction.

6. A dump truck, comprising:

a chassis (12);

the cargo box (14) is arranged on the chassis (12), and a second opening is formed in the top of the cargo box (14);

a cab (24) provided on the chassis (12);

the split roof apparatus for a dump truck cargo box of any of claims 1-5 movably connected to the cargo box (14), the split roof apparatus for a dump truck cargo box being adapted to open and close the second opening, the second cover plate (102) of the split roof apparatus for a dump truck cargo box retracting into the cavity of the first cover plate (100) of the split roof apparatus for a dump truck cargo box when the second opening is opened by the split roof apparatus for a dump truck cargo box, the first cover plate (100) and the second cover plate (102) being located above the cab (24).

7. The dump truck according to claim 6,

the turnover mechanism (16) of the split type top cover device for the dump truck cargo box comprises a front turnover arm (160), a rear turnover arm (162) and a power component, wherein the upper ends of the front turnover arm (160) and the rear turnover arm (162) are respectively hinged with the first cover plate (100), the lower ends of the front turnover arm (160) and the rear turnover arm (162) are respectively hinged with the side wall of the cargo box (14), one end of the power component is hinged with the front turnover arm (160) or the rear turnover arm (162), and the other end of the power component is hinged with the side wall of the cargo box (14).

8. The dump truck according to claim 7,

the front turning arm (160) and the rear turning arm (162) are bent or arc or straight rods, and the power part is a turning oil cylinder (164) or a turning air cylinder.

9. The dump truck according to claim 7,

the driving mechanism of the split type top cover device for the dump truck cargo box is an oil cylinder, an oil inlet and outlet pipeline of the oil cylinder is positioned below the first cover plate (100) and arranged along the front turning arm (160) and/or the rear turning arm (162), and a pipeline channel for containing the oil inlet and outlet pipeline is axially arranged on the front turning arm (160) and/or the rear turning arm (162).

10. The dump truck according to any one of claims 7 to 9, characterized by further comprising:

and the second limiting structure is arranged on the side wall of the container (14) and is used for limiting the limit position of the turnover mechanism (16).