CN210591581U

CN210591581U - Pig picking-up vehicle and vehicle body thereof

Info

Publication number: CN210591581U
Application number: CN201921647070.0U
Authority: CN
Inventors: 秦英林; 张明东; 张建; 林奕斌; 陈烨; 王立
Original assignee: Muyuan Foods Co Ltd
Current assignee: Muyuan Foods Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-05-22
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a vehicle body of a pig carrier for picking up dead pigs, which comprises a chassis, a front axle and a rear axle fixed on the chassis, a pair of front wheels and a pair of rear wheels respectively hinged with the front axle and the rear axle, a steering mechanism connected with the front wheels, and a driving mechanism connected with the rear wheels, wherein the steering mechanism comprises a transverse steering pull rod, a knuckle arm, a vertical steering pull rod and a stepping motor, the two ends of the transverse steering pull rod are respectively hinged with the trapezoidal arms of the two front wheels, one end of the knuckle arm is fixed on one of the front wheels, the other end of the knuckle arm is hinged with the vertical steering pull rod, and the stepping motor is connected with the vertical steering pull rod and is used for driving the transverse; the automobile body is still including controller, battery and the braking system who is fixed in the automobile body of automobile body, and the controller is connected with step motor, and the battery all is connected with controller and step motor. The vehicle body realizes unmanned breeding, avoids contact between people and swinery, and isolates germ transmission. The utility model also discloses a supply one kind including the pig car of dying of picking up of above-mentioned automobile body, its beneficial effect is the same with the beneficial effect of automobile body.

Description

Pig picking-up vehicle and vehicle body thereof

Technical Field

The utility model relates to a cultured equipment technical field especially relates to a car body. Furthermore, the utility model discloses still relate to one kind including the pig car of dying of picking up of above-mentioned automobile body.

Background

At present, the prevention and control difficulty of epidemic diseases is increased and the treatment capacity of pigs died of diseases in a single pig farm is increased due to large-scale breeding. In recent years, diseases such as streptococcus suis and blue ear diseases seriously impact and plague the pig industry in China and the world, the risk of the diseases is higher than the market risk, and particularly for a large-scale breeding mode, the hidden danger of the higher risk of the diseases exists. Intensive feeding of live pigs under large-scale breeding is very easy to cause the physical decline of the live pigs, the cross infection and the spread process of epidemic diseases are accelerated, thereby increasing the prevention and control difficulty of the epidemic diseases. It is estimated that the number of dead pigs is about 6000 million per year. Calculated by the lowest 3% fatality rate, the number of pigs which are killed by disease reaches 3000 every year in a large pig farm with 10 thousands of pigs per year, the pig disease is highly contagious, and the pigs which are killed by disease are massively outbreaked in a certain time period, so that further economic loss can be brought if the pigs which are killed by disease and the pigs which are live cannot be isolated in time.

The traditional method for carrying the pigs died of illness is that workers drive a trolley to enter a factory and carry the pigs by manpower, the carrying mode is time-consuming and labor-consuming, the carrying efficiency is low, the pigs died of illness are in long contact with the workers by manpower carrying, and some diseases can be possibly transmitted to a certain extent, especially the African swine fever of the year; the carrying efficiency is required to be improved, unnecessary loss is reduced, the existing carrying trolleys need to be steered through manual driving operation, the overall structure is complex, and the cost is high.

In conclusion, how to effectively avoid the contact between people and swinery and isolate the transmission of germs is a problem which needs to be solved urgently by those skilled in the art at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vehicle body, which realizes unmanned cultivation, avoids people contacting with swinery and isolates the germ transmission; the utility model also aims at providing a pig picking up vehicle comprising the vehicle body.

In order to solve the technical problem, the utility model provides a following technical scheme:

a pig car body for picking up dead pigs comprises a chassis, a front axle and a rear axle which are fixed on the chassis, a pair of front wheels and a pair of rear wheels which are respectively hinged with the front axle and the rear axle, a steering mechanism which is connected with the front wheels and used for controlling car body steering, and a driving mechanism which is connected with the rear wheels and used for driving the car body to run, wherein the steering mechanism comprises a transverse steering pull rod, a knuckle arm, a vertical steering pull rod and a stepping motor, the two ends of the transverse steering pull rod are respectively hinged with trapezoidal arms of the two front wheels, one end of the knuckle arm is fixed on one of the front wheels, the other end of the knuckle arm is hinged with the vertical steering pull rod, and the stepping motor is connected with the vertical steering pull rod and; the automobile body is still including being fixed in controller, battery and the braking system of the automobile body of automobile body, the controller with step motor connects, the battery with controller and step motor all connect.

Preferably, the steering vertical pull rod is a worm matched with a worm wheel, and a rotating shaft of the stepping motor is connected with the worm wheel through a universal joint.

Preferably, the worm wheel and the worm are externally provided with an outer shell, and the outer shell is fixed on the chassis.

Preferably, the driving mechanism is a dc brushless motor connected to the rear axle, and the dc brushless motor is connected to the storage battery and the controller.

Preferably, the braking system includes the drive the hydraulic pressure of rear wheel is bloated and is stopped piece, drive the hydraulic pressure dish of front wheel is stopped the piece to and through advance the pipeline with go out the pipeline with the hydraulic pressure is bloated and is stopped the automatic braking device that piece and hydraulic pressure dish were stopped the connection.

Preferably, the automatic brake device is including being fixed in fixed plate, the cylinder body on chassis are fixed in the brake pneumatic cylinder of fixed plate, with two-position five-way solenoid valve and link that the piston rod of brake pneumatic cylinder all connects, and one end with the fixed plate is connected and the other end with the link is kept away from the self-locking spring that piston rod one side is connected, be provided with the air pump on the automobile body, the air pump with the controller is connected, the brake pneumatic cylinder with the air pump is connected.

Preferably, still include the telescopic link, be provided with the confession on the link the through-hole that the telescopic link alternates, the both ends of telescopic link pass through the mounting panel with the fixed plate is connected, one of them the mounting panel is located the inside of link, from locking spring interlude on the telescopic link.

Preferably, install on the chassis and empty the pneumatic cylinder, the one end of box with the automobile body is articulated, and the other end passes through empty the pneumatic cylinder with the automobile body is connected, just empty the pneumatic cylinder with the air pump is connected.

Preferably, the vehicle-mounted intelligent parking system further comprises a navigation system, wherein the navigation system comprises a navigation module, a camera and a sensor, the camera and the sensor are mounted on the vehicle body, the sensor and the camera are connected with the navigation module, and the navigation module, the camera and the sensor are connected with the controller and the storage battery.

The utility model also provides a pick up dead pig car, include the box and be used for the installation the automobile body of box, the automobile body specifically is above-mentioned arbitrary automobile body.

The utility model provides an automobile body, including chassis, front axle, rear axle, a pair of front wheel, a pair of rear wheel, steering mechanism, actuating mechanism, controller, battery and braking system, the automobile body sets up in the chassis lower part, and the box sets up in chassis upper portion. The front axle and the rear axle are fixed on the chassis, the front axle is fixed at the front end under the chassis, and the rear axle is fixed at the rear end under the chassis. The pair of front wheels is hinged with two ends of the front axle, and the pair of rear wheels is hinged with two ends of the rear axle respectively. The steering mechanism is connected with the front wheel and used for controlling the steering of the vehicle body. The driving mechanism is connected with the rear wheel and used for driving the vehicle body to run, so that the front wheel is used for steering, and the rear wheel is used for driving. The controller, the storage battery and the brake system are fixed on the vehicle body, and the controller is connected with the stepping motor to control the working state of the stepping motor so as to realize automatic control. The specific control mode and the connection mode can refer to the related content of the prior art that the controller controls the motor. The automobile body is internally provided with a power supply for supplying power to all parts, the power supply is a storage battery, the storage battery is connected with the controller and the stepping motor, and the storage battery provides electric energy for all parts in the automobile body such as the controller and the stepping motor.

The steering mechanism comprises two trapezoidal arms, a transverse steering pull rod, a knuckle arm, a vertical steering pull rod and a stepping motor, the number of the trapezoidal arms is two, the two trapezoidal arms are respectively fixed on the two front wheels, and two ends of the transverse steering pull rod are respectively hinged with the other ends of the two trapezoidal arms. One end of the steering knuckle arm is fixed on one of the front wheels, and one end of the steering vertical pull rod is hinged with the other end of the steering knuckle arm. And a motor shaft of the stepping motor is connected with the other end of the steering vertical pull rod and is used for driving the steering vertical pull rod to move left and right in the horizontal direction. Specifically, the step motor drives the steering drag link to move horizontally left and right to pull the front wheel on one side to turn left or right, after the front wheel on one side is steered, the front wheel on the other side can realize synchronous steering due to the pulling of the steering drag link, and finally the steering is finished; and, use step motor to replace the steering wheel, realize automatic steering.

The utility model provides a pick up car body of dead pig, through step motor and actuating mechanism drive, do not need personnel to drive and can walk to the colony house in automatically, pick up dead pig, pick up the back, transport outside the circle again, avoid people to contact with the pig, realize keeping apart and avoid spreading the virus, realize unmanned, automatic breeding; the running driving cost is low, and automatic starting, stopping, speed regulation and steering are realized; the labor capacity is reduced.

The utility model also provides a pick up dead pig car, including the box and be used for installing the automobile body of box, this automobile body specifically is any kind of automobile body of the aforesaid. Because the car body has the technical effects, the pig picking-up car with the car body also has the corresponding technical effects.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a vehicle body according to an embodiment of the present invention;

FIG. 2 is a top view of the vehicle body;

FIG. 3 is a schematic view of the connection of the stepping motor;

FIG. 4 is a schematic structural view of the automatic braking device;

fig. 5 is a front view of the automatic brake apparatus.

The drawings are numbered as follows:

1-chassis, 2-box, 3-front wheel, 4-steering mechanism, 5-air pump, 6-vehicle body, 7-storage battery, 8-controller, 9-dumping pneumatic cylinder, 10-rear wheel, 11-front axle, 12-rear axle, 13-automatic brake device, 14-DC brushless motor, 41-trapezoidal arm, 42-steering cross pull rod, 43-steering knuckle arm, 44-steering vertical pull rod, 45-stepping motor, 46-universal joint, 131-two-position five-way solenoid valve, 132-fixing plate, 133-connecting frame, 134-braking pneumatic cylinder, 135-telescopic rod, 136-self-locking spring and 1311-valve core.

Detailed Description

The utility model has the core that the utility model provides a vehicle body, which realizes the unmanned cultivation, avoids the contact between people and swinery and isolates the germ transmission; the other core of the utility model is to provide a pig picking-up vehicle comprising the above vehicle body.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of a vehicle body according to an embodiment of the present invention; FIG. 2 is a top view of the vehicle body; fig. 3 is a schematic connection diagram of the stepping motor 45; FIG. 4 is a schematic structural view of the automatic braking device 13; fig. 5 is a front view of the automatic brake device 13.

In a specific embodiment, the utility model provides a vehicle body of pig car of dying of picking up, including chassis 1, be fixed in front axle 11 and rear axle 12 of chassis 1, with front axle 11 and rear axle 12 respectively articulated a pair of front wheel 3 and a pair of rear wheel 10, be connected with front wheel 3 and be used for controlling the steering mechanism 4 that the automobile body turned to, be connected with rear wheel 10 and be used for driving the actuating mechanism that the automobile body went, steering mechanism 4 includes both ends respectively with the trapezoidal arm 41 of two front wheels 3 articulated tie rod 42 respectively, one end is fixed in knuckle arm 43 on one of them front wheel 3, with knuckle arm 43 other end articulated steering vertical tie rod 44, be connected with steering vertical tie rod 44 and be used for driving its step motor 45 who moves about in the horizontal direction; the automobile body still includes controller 8, battery 7 and the braking system of automobile body 6 that is fixed in the automobile body, and controller 8 is connected with step motor 45, and battery 7 is connected with controller 8 and step motor 45 all.

In the structure, the pig picking-up vehicle body comprises a chassis 1, a front axle 11, a rear axle 12, a pair of front wheels 3, a pair of rear wheels 10, a steering mechanism 4, a driving mechanism, a controller 8, a storage battery 7 and a brake system, wherein the vehicle body 6 is arranged on the lower portion of the chassis 1, and the box body 2 is arranged on the upper portion of the chassis 1. The front axle 11 and the rear axle 12 are fixed on the chassis 1, the front axle 11 is fixed at the front end under the chassis 1, and the rear axle 12 is fixed at the rear end under the chassis 1. The pair of front wheels 3 are hinged to both ends of a front axle 11, and the pair of rear wheels 10 are hinged to both ends of a rear axle 12, respectively. The steering mechanism 4 is connected with the front wheel 3 and used for controlling the steering of the vehicle body. The driving mechanism is connected with the rear wheels 10 and used for driving the vehicle body to run, so that the front wheels 3 are used for steering, and the rear wheels 10 are used for driving.

The steering mechanism 4 comprises two trapezoidal arms 41, a tie rod 42, a knuckle arm 43, a vertical steering rod 44 and a stepping motor 45, the number of the trapezoidal arms 41 is two, the two trapezoidal arms are respectively fixed on the two front wheels 3, and two ends of the tie rod 42 are respectively hinged with the other ends of the two trapezoidal arms 41.

One end of the knuckle arm 43 is fixed to one of the front wheels 3, and one end of the steering vertical rod 44 is hinged to the other end of the knuckle arm 43. The motor shaft of the stepping motor 45 is connected with the other end of the steering vertical pull rod 44 and is used for driving the steering vertical pull rod to move left and right in the horizontal direction. Specifically, the step motor 45 drives the steering drag link to move horizontally left and right to pull the front wheel 3 on one side to turn left or right, after the front wheel 3 on one side is steered, the front wheel 3 on the other side can realize synchronous steering due to the pulling of the steering drag link 42, and finally the steering is finished; and, the stepping motor 45 is used instead of the steering wheel, realizing automatic steering.

The controller 8, the storage battery 7 and the brake system are fixed on the vehicle body 6, the controller 8 is connected with the stepping motor 45, and the working state of the stepping motor 45 is controlled to realize automatic control. The specific control mode and connection mode can refer to the related content of the prior art that the controller 8 controls the motor. Be provided with the power for each part power supply in automobile body 6, the power is battery 7, and battery 7 all is connected with controller 8 and step motor 45, and battery 7 provides the electric energy for each part in automobile bodies such as controller 8 and step motor 45.

The utility model provides a car body of pig car of dying picks up through step motor 45 and actuating mechanism drive, does not need personnel to drive and can walk to the colony house in automatically, picks up the pig of dying, picks up the back, transports outside the circle again, avoids people and pig contact, realizes keeping apart and avoids spreading the virus, realizes unmanned, automatic breeding; the running driving cost is low, and automatic starting, stopping, speed regulation and steering are realized; the labor capacity is reduced.

On the basis of the above specific embodiment, the steering vertical pull rod 44 is a worm matched with a worm wheel, a rotating shaft of the stepping motor 45 is connected with the worm wheel through a universal joint 46, an extending end of the worm is connected with the steering knuckle arm 43, and the stepping motor 45 drives the universal joint 46 to rotate so as to drive the worm to swing and move left and right in the horizontal direction. The structure of worm wheel and worm has simplified current complicated structure that turns to, controls step motor 45 through controller 8 and realizes automatic turning to, avoids manual operation, realizes self-service motion, simple structure practices thrift equipment cost.

Further optimize above-mentioned technical scheme, the outside of worm wheel and worm is provided with the shell body, and the shell body is fixed on chassis 1, easily the fixed mounting of worm wheel and worm still has the guard action to worm wheel and worm.

For the vehicle body in each of the above embodiments, the driving mechanism is the dc brushless motor 14 connected to the rear axle 12, and the dc brushless motor 14 is connected to the battery 7 and the controller 8. Specifically, a pair of rear wheels 10 are connected through a rear axle 12, the rear axle 12 can be the rear axle 12 of a common three-wheeled electric vehicle, and a direct-current brushless motor 14 is used for driving, so that automatic starting, stopping and speed regulation are realized; the automatic electric vehicle controller can be automatically modified on the basis of the existing electric vehicle controller 8, and the change amount is less.

In another more reliable embodiment, on the basis of any one of the above embodiments, the braking system includes a hydraulic drum brake component, a hydraulic disc brake component and an automatic braking device 13, the hydraulic drum brake component is installed at the rear wheel 10, the hydraulic disc brake component is installed at the front wheel 3, the automatic braking device 13 is connected with the hydraulic drum brake component and the hydraulic disc brake component through an inlet pipeline and an outlet pipeline, and the automatic braking device 13 controls the inlet and outlet of brake oil to control whether to brake, so that the braking system is more reliable and the safety is ensured.

The automatic brake device 13 includes a fixing plate 132, a brake pneumatic cylinder 134, a two-position five-way solenoid valve 131, a connecting frame 133 and a self-locking spring 136, the fixing plate 132 and the two-position five-way solenoid valve 131 are fixed on the chassis 1, a cylinder body of the brake pneumatic cylinder 134 is fixed on the fixing plate 132, an air pump 5 is arranged on the vehicle body 6, the air pump 5 is connected with the controller 8, the brake pneumatic cylinder 134 is connected with the air pump 5, and the air pump 5 provides air pressure for piston rod piston movement of the brake pneumatic cylinder 134. The valve core 1311 and the connecting frame 133 of the two-position five-way solenoid valve 131 are both connected with the piston rod of the brake pneumatic cylinder 134. One end of the self-locking spring 136 is connected to the fixing plate 132 and the other end is connected to a side of the connecting frame 133 away from the piston rod. Specifically, the valve core 1311 is controlled by the brake pneumatic cylinder 134 to switch different paths at the position of the solenoid valve, that is, the brake pneumatic cylinder 134 is not vented, that is, when the brake pneumatic cylinder 134 does not work, the brake pneumatic cylinder 134 has no push-pull force, the self-locking spring 136 pushes the connecting frame 133 to move upwards, and the valve core 1311 is pushed to move upwards and is in a normally open state; after the brake pneumatic cylinder 134 is ventilated, the brake pneumatic cylinder 134 is fixed relative to the chassis 1, the brake pneumatic cylinder 134 drives the connecting frame 133 to move downwards, the brake pneumatic cylinder 134 drives the valve core 1311 to move downwards through the connecting frame 133, the self-locking spring 136 is compressed, and the valve core 1311 is driven to move downwards to achieve locking. The brake system uses spring force self-locking to guarantee power-off braking, and a brake oil pump is opened by using a brake releasing cylinder during power-on to drive.

On the basis of the above-mentioned specific embodiment, still include telescopic link 135, be provided with the through-hole that supplies telescopic link 135 to alternate on the link 133, the both ends of telescopic link 135 are passed through the mounting panel and are connected with fixed plate 132, one of them mounting panel is located the inside of link 133, another mounting panel is located the outside of link 133, fix outside mounting panel department from the one end of locking spring 136, from the locking spring 136 interlude on telescopic link 135, the other end is fixed in the outside of link 133, guarantee the slip orbit of link 133 through telescopic link 135, avoid the link 133 swing.

To the automobile body in above-mentioned each embodiment, install on chassis 1 and empty pneumatic cylinder 9, the one end and the automobile body 6 of box 2 are articulated, the other end is through empting pneumatic cylinder 9 and automobile body 6 connection, and empty pneumatic cylinder 9 and be connected with air pump 5, the piston rod of empting pneumatic cylinder 9 stretches out, drive box 2 rotates around the connecting axle, drive box 2 rotates, in order to empty the dead pig of transporting in the uninstallation box 2, realize automatic uninstallation, realize automatic loading and uninstallation, practice thrift a large amount of time, the efficiency of transportation is improved, realize the unmanned pig of dying of transporting the disease.

The utility model provides a car body, under the unchangeable condition of other parts, still include navigation, navigation includes navigation module, installs camera and the sensor on car body 6, and sensor and camera are connected with navigation module, and navigation module, camera and sensor all are connected with controller 8 and battery 7. The peripheral information of the vehicle body 6 is collected through the camera and the sensor and fed back to the controller 8 for processing, the controller 8 controls the stepping motor 45 and the navigation module to work, the vehicle body 6 is controlled to move to an appointed target coordinate, the automatic movement to an appointed single body column after an instruction is issued is realized, and the autonomous navigation is realized. After walking to the colony house in through navigation module control is automatic, the dead pig is sought to external camera, and through image recognition, automatic judgement dead pig head or buttock, dolly link joint circulation operation is picked up the dead pig, picks up the back, transports outside the circle again.

Preferably, controller 8 long-range connection remote controller, through remote controller remote control commander, the camera can be binocular camera, and the camera is installed respectively in the front and back both ends of frame, and the sensor is infrared ray sensor, discerns far and near, avoids the obstacle.

Based on the automobile body that provides in the above-mentioned embodiment, the utility model also provides a pick up dead pig car, should pick up dead pig car including box 2 and be used for installing the automobile body of box 2, wherein the automobile body is arbitrary one kind automobile body in the above-mentioned embodiment. Because the pig picking-up trolley adopts the trolley body in the embodiment, the pig picking-up trolley has the beneficial effects that the pig picking-up trolley refers to the embodiment. The structure of other parts of the pig picking up vehicle refers to the prior art, and is not described herein again.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The pig picking up vehicle and the vehicle body thereof provided by the utility model are introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pig picking-up vehicle body is characterized by comprising a chassis (1), a front axle (11) and a rear axle (12) which are fixed on the chassis (1), a pair of front wheels (3) and a pair of rear wheels (10) which are respectively hinged with the front axle (11) and the rear axle (12), a steering mechanism (4) which is connected with the front wheels (3) and is used for controlling the steering of the vehicle body, and a driving mechanism which is connected with the rear wheels (10) and is used for driving the vehicle body to run, the steering mechanism (4) comprises a transverse steering pull rod (42) with two ends respectively hinged with the trapezoid arms (41) of the two front wheels (3), a steering knuckle arm (43) with one end fixed on one front wheel (3), a vertical steering pull rod (44) hinged with the other end of the steering knuckle arm (43), and a stepping motor (45) connected with the vertical steering pull rod (44) and used for driving the vertical steering pull rod to move left and right in the horizontal direction; the automobile body is still including being fixed in controller (8), battery (7) and the braking system of automobile body (6) of automobile body, controller (8) with step motor (45) are connected, battery (7) with controller (8) and step motor (45) are all connected.

2. The vehicle body of claim 1, characterized in that the steering vertical tie rod (44) is a worm cooperating with a worm wheel, and the rotation shaft of the stepping motor (45) is connected with the worm wheel through a universal joint (46).

3. The vehicle body according to claim 2, characterized in that the worm wheel and worm are externally provided with an outer housing, which is fixed to the chassis (1).

4. The vehicle body according to claim 1, characterized in that the drive mechanism is a dc brushless motor (14) connected to the rear axle (12), the dc brushless motor (14) being connected to the battery (7) and to a controller (8).

5. The vehicle body according to claim 1, characterized in that the braking system comprises a hydraulic drum brake driving the rear wheel (10), a hydraulic disc brake driving the front wheel (3), and an automatic brake device (13) connected with the hydraulic drum brake and the hydraulic disc brake via an inlet line and an outlet line.

6. The vehicle body of claim 5, wherein the automatic brake device (13) comprises a fixing plate (132) fixed on the chassis (1), a brake pneumatic cylinder (134) with a cylinder body fixed on the fixing plate (132), a two-position five-way solenoid valve (131) and a connecting frame (133) both connected with a piston rod of the brake pneumatic cylinder (134), and a self-locking spring (136) with one end connected with the fixing plate (132) and the other end connected with the connecting frame (133) far away from one side of the piston rod, wherein an air pump (5) is arranged on the vehicle body (6), the air pump (5) is connected with the controller (8), and the brake pneumatic cylinder (134) is connected with the air pump (5).

7. The vehicle body of claim 6, further comprising a telescopic rod (135), wherein the connecting frame (133) is provided with a through hole for the telescopic rod (135) to be inserted through, two ends of the telescopic rod (135) are connected with the fixing plate (132) through mounting plates, one of the mounting plates is located inside the connecting frame (133), and the self-locking spring (136) is inserted through the telescopic rod (135).

8. The vehicle body according to claim 6, characterized in that the chassis (1) is provided with a tilting pneumatic cylinder (9), one end of the box body (2) is hinged with the vehicle body (6), the other end of the box body is connected with the vehicle body (6) through the tilting pneumatic cylinder (9), and the tilting pneumatic cylinder (9) is connected with the air pump (5).

9. The vehicle body of claim 1, further comprising a navigation system, wherein the navigation system comprises a navigation module, a camera and a sensor mounted on the vehicle body (6), the sensor and the camera are connected with the navigation module, and the navigation module, the camera and the sensor are connected with the controller (8) and the storage battery (7).

10. Pig picking up trolley, comprising a box body (2) and a trolley body for mounting the box body (2), characterized in that the trolley body is in particular a trolley body according to any one of claims 1 to 9.