CN210028707U

CN210028707U - Freight transport case

Info

Publication number: CN210028707U
Application number: CN201920920461.9U
Authority: CN
Inventors: 齐二伟; 李兵臣
Original assignee: Individual
Current assignee: Henan Luoming Trailer Manufacturing Co ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-02-07
Anticipated expiration: 2029-06-19

Abstract

A freight container belongs to the field of cargo transportation and comprises a container top plate, container side plates, an operation container front plate, a container bottom plate, a container door, a container bottom frame, a fixing frame, an operation container upright post, a power unit, a container top frame, an auxiliary power device, a main power device, a container body upright post, a side fixing frame, an operation container partition plate and an auxiliary power outer cover; the box top plate is arranged at the top of the box body, covers the top surface of the box body, is made of thin-wall steel plates and is connected with the box top frame; the box side plates are arranged on the peripheral side surfaces of the box body, are connected with the box body stand columns and cover the two ends and the rear surface of the box body; the automatic dumping device has the advantages of being capable of independently loading and unloading goods and automatically dumping goods, and high in universality.

Description

Freight transport case

Technical Field

The invention belongs to the field of cargo transportation, and particularly relates to a multifunctional cargo container capable of automatically unloading.

Background

In order to improve the transportation efficiency of goods, the existing transportation of goods, particularly the long-distance transportation of bulk goods, mostly adopts box-type transportation, and in the existing box-type transportation, the two conditions are basically adopted, one is container transportation, and the other is carriage transportation; in the container transportation, the container is a pure container, goods are loaded into the container, then the container is collectively loaded to a transportation tool such as a vehicle or a ship, and the container is integrally unloaded to a destination, so that the loading and unloading efficiency can be improved; in carriage transportation, a transportation carriage and a vehicle are integrated, and cargo loading, unloading and transportation are carried out along with the vehicle; from the above phenomenon, the container cannot be self-unloaded, and the carriage can be self-unloaded but cannot be loaded, unloaded and lifted independently, and needs to be carried out together with the vehicle.

Disclosure of Invention

Aiming at the defects of the existing transport case body, the invention provides a freight case, which is characterized in that: the box comprises a box top plate, box side plates, an operation box front plate, a box bottom plate, a box door, a box bottom frame, a fixing frame, an operation box upright post, a power unit, a box top frame, an auxiliary power device, a main power device, a box body upright post, an edge fixing frame, an operation box partition plate and an auxiliary power outer cover; the box top plate is arranged at the top of the box body, covers the top surface of the box body, is made of thin-wall steel plates and is connected with the box top frame; the box side plates are arranged on the peripheral side surfaces of the box body, are connected with the box body stand columns and cover the two ends and the rear surface of the box body; the front plate of the operation box is arranged in front of the box body and positioned on the front side surface of the operation box, covers the front surface of the operation box and is made of thin-wall steel plates; the box bottom plate is arranged on the upper surface of the box bottom frame and covers the upper surface of the box bottom frame; the box door is arranged in the recalled front and is positioned between the two operation boxes at the two ends; the upper side edge of the box door is hinged with the box top frame through a hinge, the lower end of the box door is provided with a locking device matched with the box bottom frame, and the lower edge of the box door and the box bottom frame can be locked together when the box door is buckled with the box body; the box bottom frame is arranged at the lower end of the box body upright post and is formed by connecting a plurality of staggered cross beams and longitudinal beams; the fixing frame is arranged in the middle of the box bottom frame, one end of the fixing frame is hinged with the box bottom frame through a pin shaft, and the other end of the fixing frame is hinged with the end part of a piston rod of the auxiliary power device; the operating box upright is arranged on the box bottom frame, the lower end of the operating box upright is fixedly connected with the box bottom frame, and the upper end of the operating box upright is fixedly connected with the box top frame; the plurality of operation box upright columns respectively enclose two operation box spaces with the box body upright columns and the box top frames at two ends and are positioned at two ends of the box body; the power unit is arranged at one end and operates inwards, and comprises a power supply input and switching device, a power device, a hydraulic oil pump, a hydraulic electromagnetic valve, a hydraulic oil tank and a controller; the box top frame is arranged at the upper ends of the box body upright post and the operation box upright post and is fixedly connected with the box body upright post and the operation box upright post; the auxiliary power device is arranged on the box bottom frame, is positioned in the middle of the box bottom frame in the length direction and is a single-action multistage hydraulic oil cylinder, the cylinder body of the hydraulic oil cylinder is hinged with the box bottom frame through a pin shaft, and the end part of a piston rod of the oil cylinder is hinged with the fixed frame through a pin shaft; the main power device is arranged in the operation boxes at two ends of the box body and is a double-acting hydraulic oil cylinder, the tail part of the cylinder body is hinged with the box top frame through a pin shaft, and the end part of the piston rod is hinged with the side fixing frame through a pin shaft; the box body upright post is arranged between the box bottom frame and the box top frame, one end of the box body upright post is fixedly connected with the box top frame, and the other end of the box body upright post is fixedly connected with the box bottom frame; the box body stand columns are uniformly distributed on the periphery of the box top frame according to the size of the box body; the side fixing frame is arranged at the bottom of the operation box, one end of the side fixing frame is hinged with the box bottom frame through a pin shaft, and the middle part of the other end of the side fixing frame is hinged with the end part of a piston rod of a hydraulic oil cylinder of the main power device; the operation box partition plate is arranged on the operation box upright post, the upper end of the operation box partition plate is fixedly connected with the box top plate, the lower end of the operation box partition plate is fixedly connected with the box bottom plate, and the two sides of the operation box partition plate are flush with the outer edge of the operation box upright post so as to isolate the operation box space from the main box body; the two operation box partition plates are respectively positioned at two ends of the box body; the auxiliary power outer cover is arranged on the box bottom plate and fixedly connected with the box bottom plate through screws, is a thin-wall cavity with a lower opening, and can completely cover the auxiliary power device.

Furthermore, the auxiliary power device comprises an oil cylinder bracket, a connecting pin shaft and an auxiliary oil cylinder; the oil cylinder supports are arranged on two sides of the auxiliary oil cylinder, the lower end of each oil cylinder support is fixedly connected with the box bottom framework, and the upper end of each oil cylinder support is hinged with the cylinder body of the auxiliary oil cylinder through a connecting pin shaft; the cylinder body of the auxiliary oil cylinder is arranged on the oil cylinder bracket and is hinged with the oil cylinder bracket through a connecting pin; the auxiliary oil cylinder is a single-action multi-stage oil cylinder, and the end part of a piston rod of the auxiliary oil cylinder is hinged with the fixed frame through a pin shaft; it should be noted that when the total length of the box body is less than 7 meters, the auxiliary power unit does not need to be installed.

Furthermore, the side fixing frame is arranged at the bottom of the operation box and comprises a positioning block, a connecting beam and an oil cylinder connecting piece; the two positioning blocks are positioned at the two ends of the connecting beam, and the inner sides of the two positioning blocks are fixedly connected with the connecting beam; the positioning blocks are container corner blocks meeting the national standard; the connecting beam is arranged between the two positioning blocks, and two ends of the connecting beam are fixedly connected with the two positioning blocks respectively; the oil cylinder connecting piece is arranged on the connecting beam, is fixedly connected with the connecting beam and is hinged with the end part of the piston rod of the main power oil cylinder through a pin shaft; the two side fixing frames are respectively positioned at the lower parts of the two operation boxes; one end of the side fixing frame is hinged with the box bottom frame through a pin shaft, and the hinged part and the oil cylinder connecting piece are respectively positioned at different ends of the side fixing frame.

Furthermore, the distance between the positioning blocks and the distance between the two side fixing frames accord with the size of the ground feet of the standard container.

Advantageous effects

The self-unloading box body has the beneficial effects that the whole box body can be flexibly transported, the self-unloading function of the box body is realized, the box body is separated from a vehicle body, the mutual influence is avoided, and the transportation efficiency is improved.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention

1. The box comprises a box top plate, 2 box side plates, 3 operation box front plates, 4 box bottom plates and 5 box doors.

FIG. 2 is a schematic view of the present invention with the peripheral plate removed

6. The box comprises a box bottom frame, 7 parts of a fixing frame, 8 parts of an operation box upright post, 9 parts of a power unit, 10 parts of a box top frame, 11 parts of an auxiliary power device, 12 parts of a main power device, 13 parts of a box body upright post and 14 parts of a side fixing frame.

FIG. 3 is a schematic diagram of the position structure of the partition board of the operation box and the auxiliary power outer cover

15. Operation box partition 16 auxiliary power outer cover.

FIG. 4 is a schematic view of a part of the auxiliary power unit

111. An oil cylinder support 112, a connecting pin shaft 113, an auxiliary oil cylinder and a fixing frame 7.

FIG. 5 is a schematic view of the structure of the side fixing frame

6. The box bottom frame, 8 operating box upright posts, 13 box upright posts, 141 positioning blocks, 142 connecting beams, 143 oil cylinder connecting pieces.

Detailed Description

For further explaining the technical scheme of the invention, referring to the accompanying drawings, a specific embodiment of the invention will be described, and referring to fig. 5, in this example, container ground feet commonly used in the industry are selected as positioning blocks 141, in this example, 4 container ground feet are selected and respectively used as two side fixing frames 14, two side fixing frames 14 are used, the inner sides of the two positioning blocks 141 are fixedly connected with a connecting beam 142, and the length after connection is equal to the width of the container body; in this embodiment, a rectangular steel pipe is used as the connecting beam 142, the connecting beam 142 is installed between the two positioning blocks 141, and both ends of the connecting beam are respectively welded with the two positioning blocks 141; in the embodiment, a connecting lug at the end part of a piston rod of a hydraulic oil cylinder commonly used in the industry is selected as an oil cylinder connecting piece 143, in the embodiment, two oil cylinders are selected for configuration, the oil cylinder connecting pieces 143 are arranged at two sides of a connecting beam 142, the distance is larger than the thickness of a connecting ring at the end part of the piston rod of the hydraulic oil cylinder of a main power device 12, a formed connecting hole is matched with a hole on the connecting ring at the end part of the piston rod of the main power device 12, the oil cylinder connecting piece 143 is fixedly connected with one end of the connecting beam 142 close to the vicinity of a fixed block 141, and a connecting pin shaft commonly used in the industry; and the other end of the connecting beam 142 opposite to the oil cylinder connecting piece 143 is provided with a pin hole, the position of the pin hole is positioned on the same axis with the pin hole of the fixing frame 7 hinged with the box bottom frame 6, the side fixing frame 14 is hinged with the box bottom frame 6 by adopting a connecting pin which is universal in the industry, and the two side fixing frames 14 adopt the same arrangement and connection mode, thus completing the implementation of the side fixing frame 14.

As shown in fig. 4, in this example, a single-acting multi-stage hydraulic oil cylinder commonly available in the industry is selected, a hydraulic oil cylinder on a cylinder body of the oil cylinder, which is close to an inlet end and an outlet end of a piston rod and provided with a mounting pin, is used as an auxiliary oil cylinder 113, mounting lugs commonly used in the industry and matched with the mounting pin on the auxiliary oil cylinder 113 are selected as oil cylinder brackets 111, the two oil cylinder brackets 111 are mounted on two sides of the auxiliary oil cylinder 113, the lower end of each oil cylinder bracket is fixedly connected with a box bottom frame 6, the upper end of each oil cylinder bracket is hinged with the cylinder body of the auxiliary oil cylinder 113 through a connecting pin shaft; the cylinder body of the auxiliary oil cylinder 113 is arranged on an oil cylinder bracket 111 and is hinged with the oil cylinder bracket 111 through a connecting pin 112; this completes the implementation of the auxiliary power unit 11; it should be noted that when the total length of the box body is less than 7 meters, the auxiliary power unit 11 does not need to be installed, and when the total length of the box body is greater than meters, one auxiliary power unit 11 needs to be installed every 2.5 meters to 4 meters.

As shown in fig. 3, in this example, thin-walled steel plates commonly used in the industry are used as the materials of the operation box partition plate 15 and the auxiliary power outer cover 16, the operation box partition plate 15 is arranged on the operation box upright post 8, the upper end of the operation box partition plate is fixedly connected with the box top plate 1, the lower end of the operation box partition plate is fixedly connected with the box bottom plate 4, the two sides of the operation box partition plate are flush with the outer edge of the operation box upright post 8, and the operation box space is isolated from the main; two operation box partition plates 15 are respectively positioned at the inner sides of two ends of the box body; the auxiliary power outer cover 16 is arranged on the box bottom plate 4, is fixedly connected with the box bottom plate 4 through screws, is bent into a thin-wall cavity with a lower opening through a steel plate, and can completely cover the auxiliary power device 11, so that the operation box partition plate 15 and the auxiliary power outer cover 16 are implemented.

As shown in fig. 2, in the present example, rectangular steel pipes are selected, and are cut into cross beams and longitudinal beams with different lengths according to the common mode and the box body size in the industry, and are welded into a box bottom frame 6, and the box bottom frame 6 is arranged at the lower end of a box body upright post 13; in the embodiment, rectangular steel pipes are selected and welded into a rectangular frame, the width of the rectangular frame is smaller than the distance between two cross beams of the box bottom frame 6, the length of the rectangular frame is smaller than the length of the cross beams of the box bottom frame 6, the height of the rectangular frame is the same as the height of the cross beams of the box bottom frame 6 to serve as a fixed frame 7, the fixed frame 7 is arranged in the middle of the box bottom frame 6 and is positioned between the two cross beams, one end of the fixed frame is hinged with the box bottom frame 6 through a pin shaft, and the other end of; in the embodiment, rectangular steel pipes are used as the operating box upright posts 8, the operating box upright posts 8 are arranged on the box bottom frame 6, the lower ends of the operating box upright posts 8 are vertically and fixedly connected with the box bottom frame 6, and the upper ends of the operating box upright posts 8 are vertically and fixedly connected with the box top frame 10; a plurality of operation box upright columns 8 are selected according to the size of the box body, and two operation box spaces are respectively defined by the operation box upright columns 13, the box top frame 10 and the box bottom frame 6 at two ends and are positioned at two ends of the box body; in the embodiment, a power unit is formed by a power supply input and switching device, a power device, a hydraulic oil pump, a hydraulic electromagnetic valve, a hydraulic oil tank and a controller which are commonly used in the industry, and the power unit is connected according to a connecting mode which is commonly used in the industry, and a hydraulic oil pipe is connected with hydraulic oil cylinders of a main power device 12 and an auxiliary power device 11, so that the starting, stopping and locking functions of the main power device 12 and the auxiliary power device 11 can be realized; the power conversion device sold in the market is suitable for a vehicle-mounted power supply and a fixed commercial power supply, so that the working voltage of the hydraulic oil pump is set to be 24V, and a hydraulic oil pipe penetrates through the lower part of the box bottom plate 4, so that the appearance and the cargo loading and unloading are not influenced; in the embodiment, rectangular steel pipes are selected and cut into corresponding lengths according to a method commonly used in the industry to be used as cross beams and longitudinal beams of a box top frame, different numbers of longitudinal beams and cross beams are selected according to the length and the width of a box body, commercially available cross beams and longitudinal beams are welded to form a box top frame 10, and the box top frame 10 is arranged at the upper ends of a box body upright post 13 and an operation box upright post 8 and is vertically welded and connected with the box body upright post 13 and the operation box upright post 8; the auxiliary power device 11 is arranged on the box bottom frame 6 and is positioned in the middle of the box bottom frame 6 in the length direction; in the embodiment, a double-acting hydraulic oil cylinder commonly used in the industry is selected as a main power device 12, the main power device 12 is arranged in an operation box at two ends of a box body, the tail part of a cylinder body of the hydraulic oil cylinder is hinged with a box top frame 10 through a pin shaft, and the end part of a piston rod of the hydraulic oil cylinder is hinged with an edge fixing frame 14 through a pin shaft; in the embodiment, rectangular steel pipes are used as the box body upright columns 13, the box body upright columns 13 are arranged between the box bottom framework 6 and the box top framework 10, one ends of the box body upright columns are vertically and fixedly connected with the box top framework 10, and the other ends of the box body upright columns are vertically and fixedly connected with the box bottom framework 6; a plurality of box body upright posts 13 are selected according to the size of the box body and are uniformly distributed on the periphery of the box top frame 10; the side fixing frame is arranged at the bottom of the operation box, one end of the side fixing frame is hinged with the box bottom frame 6 through a pin shaft, and the middle part of the other end of the side fixing frame is hinged with the end part of a hydraulic oil cylinder piston rod of the main power device 12; in the embodiment, thin-wall corrugated steel plates commonly used in the industry are respectively used as the materials of a box top plate 1, a box side plate 2, an operation box front plate 3, a box bottom plate 4 and a box door 5, the materials are respectively cut into corresponding sizes and shapes according to the overall size of a box body, the box top plate 1 is arranged at the top of a box body frame 10, covers the upper surface of the box top frame 10 and is fixedly connected with the box top frame 10; the box side plates 2 are arranged on the peripheral side surfaces of the box body and fixedly connected with the box body upright posts 13 to cover the two ends and the rear surface of the box body; the front plate 3 of the operation box is arranged in front of the box body and positioned on the front side surface of the operation box to cover the front surface of the operation box; the box bottom plate 4 is arranged on the upper surface of the box bottom frame 6 and covers the upper surface of the box bottom frame 6; in the embodiment, a method commonly used in the industry is adopted, a rectangular steel pipe is adopted and welded into a door frame, the outer surface of the door frame is covered with a door plate to form a door 5, and the door 5 is arranged in front of a box body, is flush with the outer edges of a box top frame 10 and a box bottom frame 6 and is positioned between two operation boxes at two ends; the upper side edge of the box door 5 is hinged with the box top frame 10 through a hinge, the lower end of the box door is provided with a locking device matched with the box bottom frame 6, the locking device selected in the embodiment is a Chinese utility model patent (application number: 2018218172504) applied earlier, and the lower edge of the box door 5 can be locked with the box bottom frame 6 when the box door 5 is buckled with the box body; thus, the present invention has been completed.

When the device is applied, the box door 5 is opened, goods to be transported are loaded, after loading is completed, the box door 5 is closed and locked, the box body is hoisted to a transport tool such as an automobile, a train, a ship and the like, when the goods are transported to a destination, the box body is unloaded, the transport tool can be driven away as usual to carry out other work, a mains supply or a vehicle-mounted power supply is communicated with the power unit of the device, the remote control device is operated, the hydraulic oil pump is started, the hydraulic oil pump works to output high-pressure oil, the high-pressure oil enters one end of the hydraulic oil cylinder of the main power device 12 and the auxiliary power device 11 along a hydraulic pipeline, the piston of the hydraulic oil cylinder is pushed to move towards one end of the hydraulic oil cylinder, so as to drive the piston rod to move, as the piston rod of the hydraulic oil cylinder is respectively hinged with the fixing frame 7 and the side, the locking device of the box door 5 is opened by rotating along the hinged shafts of the box bottom frame 6, the fixed frame 7 and the side fixed frame 14, the lower end of the box door 5 is released and connected, the whole box body inclines to one side of the box door 5, the inclination angle of the box body is increased along with the increase of the stroke of the piston rod of the hydraulic oil cylinder, the goods in the box body are dumped outside the box body from one side of the box door 5, the unloading process of the box body is completed along with the increase of the inclination angle of the box body until the goods in the box body are completely unloaded, at the moment, the other button of the remote control device is pressed, the electromagnetic valve of the power unit moves reversely, the hydraulic oil led to the main power device 12 flows reversely, the piston rod of the hydraulic oil cylinder of the main power device 12 retracts backwards to drive the box body to restore from the inclined state, the hydraulic oil cylinder of the auxiliary power device 11 at the moment, the box door 5 is locked, the cargo loading and unloading process is completed once, and the cargo transportation can be realized by repeating the process; because the self-unloading device is adopted, the defect that the box body and a transport tool need to carry out loading and unloading operation together is overcome, the self-unloading of the box body is realized, and the application is convenient and flexible.

Claims

1. A freight container characterized by: the box comprises a box top plate, box side plates, an operation box front plate, a box bottom plate, a box door, a box bottom frame, a fixing frame, an operation box upright post, a power unit, a box top frame, an auxiliary power device, a main power device, a box body upright post, an edge fixing frame, an operation box partition plate and an auxiliary power outer cover; the box top plate is arranged at the top of the box body, covers the top surface of the box body, is made of thin-wall steel plates and is connected with the box top frame; the box side plates are arranged on the peripheral side surfaces of the box body, are connected with the box body stand columns and cover the two ends and the rear surface of the box body; the front plate of the operation box is arranged in front of the box body and positioned on the front side surface of the operation box, covers the front surface of the operation box and is made of thin-wall steel plates; the box bottom plate is arranged on the upper surface of the box bottom frame and covers the upper surface of the box bottom frame; the box door is arranged in the recalled front and is positioned between the two operation boxes at the two ends; the upper side edge of the box door is hinged with the box top frame through a hinge, the lower end of the box door is provided with a locking device matched with the box bottom frame, and the lower edge of the box door and the box bottom frame can be locked together when the box door is buckled with the box body; the box bottom frame is arranged at the lower end of the box body upright post and is formed by connecting a plurality of staggered cross beams and longitudinal beams; the fixing frame is arranged in the middle of the box bottom frame, one end of the fixing frame is hinged with the box bottom frame through a pin shaft, and the other end of the fixing frame is hinged with the end part of a piston rod of the auxiliary power device; the operating box upright is arranged on the box bottom frame, the lower end of the operating box upright is fixedly connected with the box bottom frame, and the upper end of the operating box upright is fixedly connected with the box top frame; the plurality of operation box upright columns respectively enclose two operation box spaces with the box body upright columns and the box top frames at two ends and are positioned at two ends of the box body; the power unit is arranged at one end and operates inwards, and comprises a power supply input and switching device, a power device, a hydraulic oil pump, a hydraulic electromagnetic valve, a hydraulic oil tank and a controller; the box top frame is arranged at the upper ends of the box body upright post and the operation box upright post and is fixedly connected with the box body upright post and the operation box upright post; the auxiliary power device is arranged on the box bottom frame, is positioned in the middle of the box bottom frame in the length direction and is a single-action multistage hydraulic oil cylinder, the cylinder body of the hydraulic oil cylinder is hinged with the box bottom frame through a pin shaft, and the end part of a piston rod of the oil cylinder is hinged with the fixed frame through a pin shaft; the main power device is arranged in the operation boxes at two ends of the box body and is a double-acting hydraulic oil cylinder, the tail part of the cylinder body is hinged with the box top frame through a pin shaft, and the end part of the piston rod is hinged with the side fixing frame through a pin shaft; the box body upright post is arranged between the box bottom frame and the box top frame, one end of the box body upright post is fixedly connected with the box top frame, and the other end of the box body upright post is fixedly connected with the box bottom frame; the box body stand columns are uniformly distributed on the periphery of the box top frame according to the size of the box body; the side fixing frame is arranged at the bottom of the operation box, one end of the side fixing frame is hinged with the box bottom frame through a pin shaft, and the middle part of the other end of the side fixing frame is hinged with the end part of a piston rod of a hydraulic oil cylinder of the main power device; the operation box partition plate is arranged on the operation box upright post, the upper end of the operation box partition plate is fixedly connected with the box top plate, the lower end of the operation box partition plate is fixedly connected with the box bottom plate, and the two sides of the operation box partition plate are flush with the outer edge of the operation box upright post so as to isolate the operation box space from the main box body; the two operation box partition plates are respectively positioned at two ends of the box body; the auxiliary power outer cover is arranged on the box bottom plate and fixedly connected with the box bottom plate through screws, is a thin-wall cavity with a lower opening, and can completely cover the auxiliary power device.

2. A cargo container according to claim 1, wherein: the auxiliary power device comprises an oil cylinder bracket, a connecting pin shaft and an auxiliary oil cylinder; the oil cylinder supports are arranged on two sides of the auxiliary oil cylinder, the lower end of each oil cylinder support is fixedly connected with the box bottom framework, and the upper end of each oil cylinder support is hinged with the cylinder body of the auxiliary oil cylinder through a connecting pin shaft; the cylinder body of the auxiliary oil cylinder is arranged on the oil cylinder bracket and is hinged with the oil cylinder bracket through a connecting pin; the auxiliary oil cylinder is a single-action multi-stage oil cylinder, and the end part of a piston rod of the auxiliary oil cylinder is hinged with the fixed frame through a pin shaft; it should be noted that when the total length of the box body is less than 7 meters, the auxiliary power unit does not need to be installed.

3. A cargo container according to claim 1, wherein: the side fixing frame is arranged at the bottom of the operation box and comprises a positioning block, a connecting beam and an oil cylinder connecting piece; the two positioning blocks are positioned at the two ends of the connecting beam, and the inner sides of the two positioning blocks are fixedly connected with the connecting beam; the positioning blocks are container corner blocks meeting the national standard; the connecting beam is arranged between the two positioning blocks, and two ends of the connecting beam are fixedly connected with the two positioning blocks respectively; the oil cylinder connecting piece is arranged on the connecting beam, is fixedly connected with the connecting beam and is hinged with the end part of the piston rod of the main power oil cylinder through a pin shaft; the two side fixing frames are respectively positioned at the lower parts of the two operation boxes; one end of the side fixing frame is hinged with the box bottom frame through a pin shaft, and the hinged part and the oil cylinder connecting piece are respectively positioned at different ends of the side fixing frame.