CN219690256U - Shop's row car - Google Patents

Abstract

The utility model discloses a paving and discharging vehicle, which relates to the field of road pavement asphalt paving and discharging, wherein an L-shaped plate is arranged on a vehicle body, an asphalt stirring cylinder is arranged on a transverse plate of the L-shaped plate, and a scraping mechanism for preventing asphalt from adhering to the inner wall of the stirring cylinder is arranged in the asphalt stirring cylinder.

Description

Shop's row car

Technical Field

The utility model relates to the field of pavement asphalt paving, in particular to a paving vehicle.

Background

Asphalt is a blackish brown complex mixture composed of hydrocarbon compounds with different molecular weights and nonmetallic derivatives thereof, is one of high-viscosity organic liquids, has black surface, is a waterproof, moistureproof and anticorrosive organic cementing material, and is widely used as pavement paving materials in the road construction process. Asphalt is often required to be paved by using an asphalt paving device in the road construction process, because the viscosity of the asphalt is large, and the existing paving device lacks stirring equipment, the asphalt is solidified in the paving device in the paving process, so that the road construction is affected.

The Chinese patent of the application number 201921096399.2 discloses a highway pavement asphalt paving device, and asphalt raw materials are prevented from being solidified by the arrangement of a heating sleeve, a stirring paddle and a scraper, so that the asphalt raw materials are more uniformly added to a pavement; the feeding amount of asphalt can be flexibly adjusted through the adjusting valve; finally, the paved asphalt pavement is smooth, compact and durable through the paving mechanism and the leveling roller, and the problems of low paving efficiency and complex operation of asphalt serving as a pavement paving material of a highway are solved through the overall structural design.

However, there are still some problems in the above patents: because pitch itself is high viscosity, there is some pitch to glue on adding the lateral wall of storage box during the use, can't follow discharging pipe and discharge, leads to the wasting of resources and be difficult to clear up, after using, solidifies on the lateral wall of storage box more easily, influences the use next time.

In view of this, the present utility model has been made.

Disclosure of Invention

Aiming at the problems, the utility model provides the paving and discharging vehicle which solves the problems that when the paving and discharging vehicle is used, a part of asphalt is stuck to the side wall of the material adding and storing box and cannot be discharged from the discharging pipe, so that resources are wasted and are difficult to clean, and when the paving and discharging vehicle is used, the asphalt is easier to solidify on the side wall of the material storing box and affects the next use.

The utility model adopts the technical scheme that: a paving and arranging vehicle comprises a vehicle body and a push rod;

an L-shaped plate is arranged on the vehicle body, an asphalt mixing drum is arranged on a transverse plate of the L-shaped plate, and a scraping mechanism for preventing asphalt from adhering to the inner wall of the asphalt mixing drum is arranged in the asphalt mixing drum;

one side of a vertical plate of the L-shaped plate is connected with a discharging device, a limiting device is arranged above the vertical plate of the L-shaped plate, and the discharging device is detachably connected with the asphalt mixing drum through the limiting device;

the vehicle body below the transverse plate of the L-shaped plate is provided with a driving device, the driving device penetrates through the transverse plate of the L-shaped plate and the bottom wall of the asphalt mixing drum respectively and is connected with a scraping mechanism, and the scraping mechanism is driven by the driving device;

a leveling mechanism is arranged below the transverse plate of the L-shaped plate on one side of the driving device, and the leveling mechanism penetrates through the vehicle body in a sliding manner.

Further, the asphalt mixing drum is provided with a cover which can be opened and closed.

Still further, discharging device includes first discharging pipe, second discharging pipe, the first end of first discharging pipe passes through stop device and asphalt mixing drum and can dismantle the connection, the second end block of first discharging pipe is connected with the second discharging pipe, the second discharging pipe runs through the automobile body.

Still further, drive arrangement includes motor, first sprocket, second sprocket, chain, axis of rotation, first gear, dwang, second gear, disc, is equipped with the motor on the carriage body of L template's diaphragm below, the cover is equipped with first sprocket on the output shaft of motor, motor one side be equipped with the axis of rotation on the carriage body, the axis of rotation rotationally runs through the carriage body, the first end of axis of rotation and the diaphragm bottom of L template rotate to be connected, the second end of axis of rotation is connected with the disc that is used for pushing asphalt away, the cover is equipped with the second sprocket on the axis of rotation between the diaphragm of carriage body and L template, through chain drive between first sprocket and the second sprocket, the cover is equipped with first gear on the axis of rotation of second sprocket top, axis of rotation one side is equipped with the dwang, the dwang runs through respectively the diaphragm of L template and asphalt mixing drum diapire and scrapes the motor mechanism and be connected, the cover is equipped with the second gear on the dwang that is located the asphalt mixing drum is outside, first gear and second gear meshing.

Still further, scrape the mechanism and include puddler, scraper blade, nut, be located inside the asphalt mixing drum the dwang lateral wall symmetry is equipped with a plurality of puddlers, homonymy all be connected with same scraper blade on the puddler, the inner wall laminating of scraper blade and asphalt mixing drum, the dwang can be dismantled with a plurality of puddlers and be connected.

Still further, the symmetry is equipped with two recesses on the dwang, the cover is equipped with the sleeve in the dwang outside, be equipped with two fixture blocks in the sleeve, two the fixture block is detachable respectively in two recesses, a plurality of the puddler sets up at the sleeve outer wall, the head of dwang is equipped with the external screw thread, the head spiro union of dwang has the nut, nut and sleeve roof can laminate.

Still further, stop device includes T type limiting plate, first movable rod, second spring, second movable rod, the first end both sides wall of first discharging pipe all is equipped with the arch, the riser lateral wall of L template is equipped with first spout, be equipped with the riser of T type limiting plate in the first spout with sliding, the diapire of first spout is equipped with two spacing holes, be equipped with two second movable rods below the riser of T type limiting plate, two the second movable rod runs through two archs respectively and the detachable card is in spacing hole;

still further, the diaphragm both ends of T type limiting plate all are equipped with first movable rod, the cover is equipped with the second spring on the first movable rod, the first end of second spring is connected with the diaphragm of T type limiting plate, the second end of second spring is connected with the riser roof of L template, the riser roof of L template is equipped with the second spout, first movable rod slides in the second spout.

Still further, leveling mechanism includes pneumatic cylinder, leveling roller, the below of L template is connected with the pneumatic cylinder, the output of pneumatic cylinder runs through the automobile body with sliding and is connected with rotatable leveling roller, the external control switch of pneumatic cylinder.

The utility model has the advantages that:

according to the utility model, the rotating rod rotates to drive the stirring rod to uniformly stir asphalt and the scraping plate to scrape asphalt adhered to the side wall of the asphalt stirring cylinder, after the stirring rod is completed, the nut can be removed, the sleeve, the stirring rod and the scraping plate can be taken out from the asphalt stirring cylinder to clean, the problems that resources are wasted and difficult to clean caused by adhering asphalt on the side wall of the material adding and storing box are solved, meanwhile, the T-shaped limiting plate is pulled upwards to enable the second movable rod to move upwards along the limiting hole, the first movable rod slides upwards along the second sliding groove until the second movable rod is separated from the limiting hole, and the first discharging pipe is pulled at the moment, so that the first end of the first discharging pipe is separated from the asphalt stirring cylinder, and the first discharging pipe can be detached at the moment.

In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the discharging device of the utility model;

FIG. 3 is a schematic view of the stirring rod installation of the present utility model;

FIG. 4 is a schematic view of a scraping mechanism according to the present utility model;

FIG. 5 is a schematic view of the driving apparatus of the present utility model;

FIG. 6 is a schematic view of a spacing device according to the present utility model;

fig. 7 is a schematic view of the leveling roll installation of the present utility model.

Reference numerals:

1 is a vehicle body; 2 is an L-shaped plate; 21 is a first chute; 3 is a discharging device; 31 is a first discharge pipe; 32 is a second discharge tube; 33 is a protrusion; 4 is an asphalt mixing drum; 41 is a cover; 5 is a driving device; 51 is a motor; 52 is a first sprocket; 53 is a second sprocket; 54 is a chain; 55 is a rotation axis; 56 is a first gear; 57 is a rotating rod; 58 is a second gear; 59 is a disc; 6, a limiting device; 61 is a T-shaped limiting plate; 62 is a first movable bar; 63 is a second spring; 64 is a second movable bar; 7 is a leveling mechanism; 71 is a hydraulic cylinder; 72 is a leveling roller; 81 is a stirring rod; 82 is a scraper; 83 is a groove; 84 is a nut; 85 is a sleeve.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1 to 7, a vehicle for laying and arranging comprises a vehicle body 1 and a push rod 11;

an L-shaped plate 2 is installed on the vehicle body 1, an asphalt mixing drum 4 is installed on a transverse plate of the L-shaped plate 2, a scraping mechanism for preventing asphalt from adhering to the inner wall of the asphalt mixing drum 4 is installed in the asphalt mixing drum 4, one side of a vertical plate of the L-shaped plate 2 is connected with a discharging device 3, a limiting device 6 is installed above the vertical plate of the L-shaped plate 2, the discharging device 3 is detachably connected with the asphalt mixing drum 4 through the limiting device 6, a driving device 5 is installed on the vehicle body 1 below the transverse plate of the L-shaped plate 2, the driving device 5 penetrates through the transverse plate of the L-shaped plate 2 and the asphalt mixing drum 4 respectively and is connected with the scraping mechanism, the scraping mechanism is driven by the driving device 5, a leveling mechanism 7 is installed below the transverse plate of the L-shaped plate 2 on one side of the driving device 5, and the leveling mechanism 7 penetrates through the vehicle body 1 in a sliding manner;

in this embodiment: the asphalt mixing drum 4 is provided with a cover 41 which can be opened and closed; the push rod is arranged on the vehicle body 1;

when the asphalt paving machine is used, firstly, the cover 41 is opened, asphalt to be paved is poured into the asphalt mixing drum 4, the pushing rod is pushed to push the vehicle body 1 to a proper position, the driving device 5 drives the disc 59 and the scraping mechanism to move simultaneously, asphalt is discharged from the discharging device 3 after being mixed, when the vehicle body 1 is pushed to advance, the driving device 5 drives the disc 59 to level the asphalt, and the leveling mechanism 7 can level the paved asphalt when in the moving process, as shown in fig. 1.

The discharging device 3 comprises a first discharging pipe 31 and a second discharging pipe 32, wherein the first end of the first discharging pipe 31 is detachably connected with the asphalt mixing drum 4 through a limiting device 6, the second end of the first discharging pipe 31 is connected with the second discharging pipe 32 in a clamping manner, and the second discharging pipe 32 penetrates through the vehicle body 1;

in this embodiment: the second end of the first discharging pipe 31 is connected with the second discharging pipe 32 through an L-shaped bent pipe in a clamping manner, wherein the L-shaped bent pipe is commercially available in the prior art, and the existence of the second discharging pipe 32 can be ensured not to form interference when the first discharging pipe 31 is disassembled; when the electromagnetic valve is detached, the second discharging pipe 32 is pulled downwards, so that the second discharging pipe 32 is separated from the L-shaped bent pipe, then the first discharging pipe 31 is detached, and the electromagnetic valve is arranged on the first discharging pipe 31; the lower part of the second discharging pipe 32 is of an arc-shaped structure, so that asphalt is prevented from splashing;

in use, the solenoid valve is opened, and asphalt flows from the asphalt mixing drum 4 through the first discharging pipe 31, passes through the first discharging pipe 31 to the second discharging pipe 32 and is discharged to the road surface, as shown in fig. 2.

The driving device 5 comprises a motor 51, a first sprocket 52, a second sprocket 53, a chain 54, a rotating shaft 55, a first gear 56, a rotating rod 57, a second gear 58 and a disc 59, wherein the motor 51 is arranged on the vehicle body 1 below the transverse plate of the L-shaped plate 2, the first sprocket 52 is sleeved on an output shaft of the motor 51, the first sprocket 52 is fixedly connected with the output shaft of the motor 51, the rotating shaft 55 is arranged on the vehicle body 1 on one side of the motor 51, the rotating shaft 55 rotatably penetrates through the vehicle body 1, a first end of the rotating shaft 55 is rotatably connected with the bottom of the transverse plate of the L-shaped plate 2, the second end of the rotating shaft 55 is connected with the disc 59 for pushing asphalt away, the rotating shaft 55 between the vehicle body 1 and the transverse plate of the L-shaped plate 2 is sleeved with the second sprocket 53, the second sprocket 53 is fixedly connected with the rotating shaft 55, the first sprocket 52 and the second sprocket 53 are in transmission through the chain 54, the first gear 56 is sleeved on the rotating shaft 55 above the second sprocket 53, the first gear 56 and the second sprocket 55 are fixedly connected with the first gear 55, the rotating rod 57 is arranged on one side of the rotating shaft 55, the rotating rod 57 penetrates through the plate of the L-shaped plate 2 and the stirring drum 4 respectively, the first gear 58 is connected with the second gear 58 and the second gear 58 is meshed with the second gear 58, and the second gear 58 is fixedly connected with the second gear 58, and the second gear 58 is meshed with the second gear 58;

in the implementation: the motor 51 is externally connected with a control switch, the second end of the rotating shaft 55 is connected with the disc 59 through an electric telescopic rod, and the height of the disc 59 can be adjusted;

when the asphalt stirring device is used, the motor 51 is turned on to control the switch, the motor 51 drives the first chain wheel 52 to rotate, the first chain wheel 52 drives the chain 54 to rotate, the chain 54 drives the second chain wheel 53 to rotate, the second chain wheel 53 drives the rotating shaft 55 to rotate, the rotating shaft 55 simultaneously drives the first gear 56 and the disc 59 to rotate, the first gear 56 drives the second gear 58 to rotate, the second gear 58 drives the rotating rod 57 to rotate, the rotating rod 57 drives the stirring rod 81 below to rotate, asphalt inside the asphalt stirring cylinder 4 is uniformly stirred, and the disc 59 can uniformly push asphalt discharged from the second discharging pipe 32; as in fig. 5.

The scraping mechanism comprises stirring rods 81, scraping plates 82 and nuts 84, wherein a plurality of stirring rods 81 are symmetrically arranged on the side wall of a rotating rod 57 positioned in an asphalt stirring cylinder 4, the stirring rods 81 on the same side are connected with the same scraping plates 82, the scraping plates 82 are attached to the inner wall of the asphalt stirring cylinder 4, the rotating rod 57 is detachably connected with the stirring rods 81, two grooves 83 are symmetrically formed in the rotating rod 57, a sleeve 85 is sleeved on the outer side of the rotating rod 57 in a sliding manner, two clamping blocks are arranged in the sleeve 85, the two clamping blocks are respectively and detachably clamped in the two grooves 83, a plurality of stirring rods 81 are arranged on the outer wall of the sleeve 85, external threads are formed in the head of the rotating rod 57, nuts 84 are screwed on the head of the rotating rod 57, and the nuts 84 can be attached to the top wall of the sleeve 85;

in this embodiment: the scraping plate 82 is of an arc-shaped structure, and the arc-shaped structure and the side wall of the asphalt mixing cylinder 4 can be just matched, so that the scraping plate 82 is just tightly attached to the side wall of the asphalt mixing cylinder 4, and asphalt adhered to the side wall of the asphalt mixing cylinder 4 can be completely scraped; the rotating rod 57 is detachably connected with the sleeve 85, so that after the stirring rod is used, a plurality of stirring rods 81 and scraping plates thereof can be conveniently removed and cleaned at the same time; the diameter of the nut 84 is not smaller than the diameter of the rotating rod 57, in order to facilitate the compression fixation of the sleeve 85 in the groove 83;

when the asphalt stirring barrel is used, the sleeve 85 is lifted, two clamping blocks in the sleeve 85 slide downwards along the grooves 83 until the clamping blocks slide to the bottoms of the grooves 83, at the moment, the two clamping blocks are clamped in the two grooves 83, then the nut 84 is screwed onto the rotating rod 57 until the nut 84 is tightly attached to the top of the sleeve 85, and when the rotating rod 57 rotates, the stirring rod 81 is driven to uniformly stir asphalt and the scraping plate 82 is driven to scrape asphalt adhered to the side wall of the asphalt stirring barrel 4; when the stirring rod 81 and the scraping plate are used, the stirring rod 81 and the scraping plate can be removed for cleaning by reversing the process; as in fig. 3.

The limiting device 6 comprises a T-shaped limiting plate 61, a first movable rod 62, a second spring 63 and a second movable rod 64, wherein the two side walls of the first end of the first discharging pipe 31 are provided with bulges 33, the side wall of the vertical plate of the L-shaped plate 2 is provided with a first sliding groove 21, the inside of the first sliding groove 21 is slidably provided with a vertical plate of the T-shaped limiting plate 61, the bottom wall of the first sliding groove 21 is provided with two limiting holes, two second movable rods 64 are arranged below the vertical plate of the T-shaped limiting plate 61, the two second movable rods 64 respectively penetrate through the two bulges 33 and are detachably clamped in the limiting holes, the two ends of the transverse plate of the T-shaped limiting plate 61 are respectively provided with a first movable rod 62, the first movable rod 62 is sleeved with a second spring 63 in a sliding manner, the first end of the second spring 63 is connected with the transverse plate of the T-shaped limiting plate 61, the second end of the second spring 63 is connected with the top wall of the vertical plate of the L2, and the top wall of the vertical plate of the L2 is provided with a second sliding groove, and the first movable rod 62 slides in the second sliding groove;

in this embodiment: the asphalt mixing drum 4 is provided with a hole, when the two second movable rods 64 respectively penetrate through the two bulges 33, the first discharging pipe 31 just penetrates through the hole on the asphalt mixing drum 4 and is attached to the inner wall of the asphalt mixing drum 4, and the first discharging pipe 31 cannot interfere scraping of the scraping plate 82 on the side wall of the asphalt mixing drum 4;

when the first discharging pipe 31 needs to be disassembled, the T-shaped limiting plate 61 is pulled upwards, the second spring 63 is stretched, the second movable rod 64 moves upwards along the limiting hole, the first movable rod 62 slides upwards along the second sliding groove until the second movable rod 64 is separated from the limiting hole, then the second discharging pipe 32 is pulled downwards, the second discharging pipe 32 is separated from the L-shaped bent pipe, then the first discharging pipe 31 is pulled again, the first end of the first discharging pipe 31 is separated from the asphalt mixing drum 4, finally the L-shaped bent pipe and the first discharging pipe 31 are separated, and at the moment, the first discharging pipe 31 and the second discharging pipe 32 can be detached for cleaning, so that blockage is avoided; as in fig. 6.

The leveling mechanism 7 comprises a hydraulic cylinder 71 and a leveling roller 72, the lower part of the L-shaped plate 2 is connected with the hydraulic cylinder 71, the output end of the hydraulic cylinder 71 penetrates through the vehicle body 1 in a sliding manner and is connected with the rotatable leveling roller 72, and the hydraulic cylinder 71 is externally connected with a control switch;

in this embodiment: the hydraulic cylinder 71 and the leveling roller 72 are both of the prior art, and function is that the leveling roller 72 levels asphalt after the asphalt is laid ahead, as shown in fig. 5.

The working process of the utility model comprises the following steps:

when the asphalt mixing drum is used, firstly, the cover 41 is opened, asphalt to be paved is poured into the asphalt mixing drum 4, the push rod is pushed to push the vehicle body 1 to a proper position, the motor 51 is turned on to control the switch, the motor 51 drives the first chain wheel 52 to rotate, the first chain wheel 52 drives the chain 54 to rotate, the chain 54 drives the second chain wheel 53 to rotate, the second chain wheel 53 drives the rotating shaft 55 to rotate, the rotating shaft 55 simultaneously drives the first gear 56 and the disc 59 to rotate, the first gear 56 drives the second gear 58 to rotate, the second gear 58 drives the rotating rod 57 to rotate, the rotating rod 57 drives the stirring rod 81 below to rotate, and asphalt in the asphalt mixing drum 4 is uniformly mixed;

the electromagnetic valve is opened, asphalt flows through the first discharging pipe 31 from the asphalt mixing drum 4, is discharged to the road surface after passing through the first discharging pipe 31 to the second discharging pipe 32, and the disc 59 can uniformly push the asphalt discharged from the second discharging pipe 32; in the process, the hydraulic cylinder 71 is started to adjust the leveling roller 72 to a proper position, after the asphalt is paved in the front direction, the leveling roller 72 levels the asphalt, and meanwhile, when the rotating rod 57 rotates, the stirring rod 81 is driven to stir the asphalt uniformly, and meanwhile, the scraping plate 82 is driven to scrape off the asphalt stuck on the side wall of the asphalt stirring cylinder 4;

after the use is finished, all switches are closed, when the first discharging pipe 31 is disassembled, the T-shaped limiting plate 61 is pulled upwards, the second spring 63 is stretched, the second movable rod 64 moves upwards along the limiting hole, the first movable rod 62 slides upwards along the second sliding chute until the second movable rod 64 is separated from the limiting hole, the second discharging pipe 32 is pulled downwards firstly, so that the second discharging pipe 32 is separated from the L-shaped bent pipe, then the first discharging pipe 31 is pulled again, the first end of the first discharging pipe 31 is separated from the asphalt mixing drum 4, finally the L-shaped bent pipe and the first discharging pipe 31 are separated, and at the moment, the first discharging pipe 31 and the second discharging pipe 32 can be detached for cleaning, so that blocking is avoided;

finally, the box cover 41 is opened, the nut 84 is loosened, the nut 84 is removed, and the stirring rod 81 and the scraping plate 82 are taken out from the asphalt mixing drum 4 for cleaning, so that the whole working process is completed.

According to the utility model, the rotating rod rotates to drive the stirring rod to uniformly stir asphalt and the scraping plate to scrape asphalt adhered to the side wall of the asphalt stirring cylinder, after the stirring rod is completed, the nut can be removed, the sleeve, the stirring rod and the scraping plate can be taken out from the asphalt stirring cylinder to clean, the problems that resources are wasted and difficult to clean caused by adhering asphalt on the side wall of the material adding and storing box are solved, meanwhile, the T-shaped limiting plate is pulled upwards to enable the second movable rod to move upwards along the limiting hole, the first movable rod slides upwards along the second sliding groove until the second movable rod is separated from the limiting hole, and the first discharging pipe is pulled at the moment, so that the first end of the first discharging pipe is separated from the asphalt stirring cylinder, and the first discharging pipe can be detached at the moment.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (8)

1. The paving vehicle is characterized by comprising a vehicle body (1) and a push rod (11);

an L-shaped plate (2) is arranged on the vehicle body (1), an asphalt mixing drum (4) is arranged on a transverse plate of the L-shaped plate (2), and a scraping mechanism for preventing asphalt from adhering to the inner wall of the asphalt mixing drum (4) is arranged in the asphalt mixing drum (4);

one side of a vertical plate of the L-shaped plate (2) is connected with a discharging device (3), a limiting device (6) is arranged above the vertical plate of the L-shaped plate (2), and the discharging device (3) is detachably connected with the asphalt mixing drum (4) through the limiting device (6);

a driving device (5) is arranged on the vehicle body (1) below the transverse plate of the L-shaped plate (2), the driving device (5) penetrates through the transverse plate of the L-shaped plate (2) and the bottom wall of the asphalt mixing drum (4) respectively and is connected with a scraping mechanism, and the scraping mechanism is driven by the driving device (5);

a leveling mechanism (7) is arranged below the transverse plate of the L-shaped plate (2) on one side of the driving device (5), and the leveling mechanism (7) penetrates through the vehicle body (1) in a sliding mode.

2. A vehicle according to claim 1, characterized in that the asphalt mixing drum (4) is provided with a cover (41) which can be opened and closed.

3. The paving vehicle according to claim 1, wherein the discharging device (3) comprises a first discharging pipe (31) and a second discharging pipe (32), a first end of the first discharging pipe (31) is detachably connected with the asphalt mixing drum (4) through a limiting device (6), a second end of the first discharging pipe (31) is connected with a second discharging pipe (32) in a clamping manner, and the second discharging pipe (32) penetrates through the vehicle body (1).

4. The vehicle according to claim 1, wherein the driving device (5) comprises a motor (51), a first sprocket (52), a second sprocket (53), a chain (54), a rotating shaft (55), a first gear (56), a rotating rod (57), a second gear (58) and a disc (59), wherein the motor (51) is arranged on the vehicle body (1) below the transverse plate of the L-shaped plate (2), the first sprocket (52) is sleeved on the output shaft of the motor (51), the rotating shaft (55) is arranged on the vehicle body (1) on one side of the motor (51), the rotating shaft (55) rotatably penetrates the vehicle body (1), the first end of the rotating shaft (55) is rotatably connected with the bottom of the transverse plate of the L-shaped plate (2), the second end of the rotating shaft (55) is connected with the disc (59) for pushing asphalt away, the second sprocket (53) is sleeved on the rotating shaft (55) between the vehicle body (1) and the transverse plate of the L-shaped plate (2), the rotating shaft (53) is arranged on the rotating shaft (55) through the first sprocket (55), the rotating rod (55) is arranged on one side of the rotating shaft (55), the rotating rod (57) penetrates through the transverse plate of the L-shaped plate (2) and the bottom wall of the asphalt mixing drum (4) respectively to be connected with the scraping mechanism, a second gear (58) is sleeved on the rotating rod (57) which is positioned outside the asphalt mixing drum (4), and the first gear (56) is meshed with the second gear (58).

5. The vehicle according to claim 4, wherein the scraping mechanism comprises a stirring rod (81), a scraping plate (82) and a nut (84), the side walls of the rotating rod (57) inside the asphalt mixing drum (4) are symmetrically provided with a plurality of stirring rods (81), the stirring rods (81) on the same side are connected with the same scraping plate (82), the scraping plate (82) is attached to the inner wall of the asphalt mixing drum (4), and the rotating rod (57) is detachably connected with the stirring rods (81).

6. The vehicle according to claim 5, wherein two grooves (83) are symmetrically formed in the rotating rod (57), a sleeve (85) is sleeved on the outer side of the rotating rod (57), two clamping blocks are arranged in the sleeve (85), two clamping blocks are detachably clamped in the two grooves (83), a plurality of stirring rods (81) are arranged on the outer wall of the sleeve (85), external threads are formed in the head of the rotating rod (57), a nut (84) is connected to the head of the rotating rod (57) in a threaded mode, and the nut (84) can be attached to the top wall of the sleeve (85).

7. A vehicle according to claim 3, wherein the limiting device (6) comprises a T-shaped limiting plate (61), a first movable rod (62), a second spring (63) and a second movable rod (64), two side walls of the first end of the first discharging pipe (31) are respectively provided with a bulge (33), the side wall of the vertical plate of the L-shaped plate (2) is provided with a first sliding groove (21), the first sliding groove (21) is internally provided with a vertical plate of the T-shaped limiting plate (61) in a sliding manner, the bottom wall of the first sliding groove (21) is provided with two limiting holes, two second movable rods (64) are arranged below the vertical plate of the T-shaped limiting plate (61), and the two second movable rods (64) respectively penetrate through the two bulges (33) and are detachably clamped in the limiting holes;

the utility model discloses a T type limiting plate, including T type limiting plate (61), diaphragm, first movable rod (62), cover is equipped with second spring (63) on first movable rod (62), the first end of second spring (63) is connected with the diaphragm of T type limiting plate (61), the second end of second spring (63) is connected with the riser roof of L template (2), the riser roof of L template (2) is equipped with the second spout, first movable rod (62) slide in the second spout.

8. The paving vehicle according to claim 1, wherein the leveling mechanism (7) comprises a hydraulic cylinder (71) and leveling rollers (72), the hydraulic cylinder (71) is connected below the L-shaped plate (2), the output end of the hydraulic cylinder (71) slidably penetrates through the vehicle body (1) and is connected with the rotatable leveling rollers (72), and the hydraulic cylinder (71) is externally connected with a control switch.