CN111456559A - Automatic opening and closing mechanism of container door - Google Patents

Abstract

The invention discloses an automatic opening and closing mechanism for a container door of a container, which comprises a turning bracket arranged on one side of the box door; a push rod, the rod body is rotatably connected with the turning bracket, and a sliding block assembly is slidably arranged; a magnetic device is installed The sliding component is magnetically adsorbed with the box door; the telescopic component is arranged on the push rod, and is provided with several hooks for pulling the handle of the box door; the driving part is used for driving the push rod to swing . The invention controls the hook to pull the handle through the telescopic assembly, turns the lock rod to unlock, controls the push rod to swing through the driving element, the slider assembly moves on the push rod, the magnetic device absorbs the box door, drives the box door to open or close, and realizes the automatic operation of the box door. The switch can improve the safety of the operation, and the opening angle of the box door can be flexibly adjusted by controlling the driving part.

Description

Automatic opening and closing mechanism of container door

technical field

The invention relates to the technical field of container equipment, in particular to an automatic opening and closing mechanism of a container door.

Background technique

Containers are used for bulk cargo transportation, which can quickly and efficiently transport bulk cargo or high-fluid goods. Currently, it is widely used in the transportation of grain, coal, chemical raw materials, building materials, garbage, food and other goods. In order to realize the loading and unloading of container bulk cargo faster, the user will use the container turning platform to turn the container over. The operator needs to climb up and turn the handle of the lock lever of the container door to open the container door. After loading, the operator needs to climb up and close the container again. Door. Turning the handle to lock the door of the container has low operational safety and has potential safety hazards. When unloading, the rapid flow of goods in the container and the pouring force on the door may also easily cause injury to the operator. Most of the existing container overturning platforms are only equipped with a door. The opening device can open the door lock lever, but the door still cannot be closed, and the degree of automation is low, especially when the material in the box produces lateral pressure on the door, the position of the container door cannot be controlled, and the structure and size of the container are standardized. As a result, it is difficult to install a special door opening device on the box door, and there will be a lot of dust flying during the loading and unloading process of bulk cargo, lack of shielding and protection, resulting in a harsh operating site environment.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide an automatic opening and closing mechanism for a container door, which can automatically open and close the container door and improve operation safety.

The automatic opening and closing mechanism of the container door of the container according to the embodiment of the present invention includes a flip bracket, which is arranged on one side of the container door; a push rod, the rod body of the push rod is rotatably connected to the flip bracket, and the push rod A sliding block assembly is provided in a sliding manner; a magnetic force device is installed on the sliding assembly and is magnetically adsorbed with the box door; a telescopic assembly, the telescopic assembly is arranged on the push rod, and is provided with several functions The hook for pulling the handle of the box door; the driving part is used for driving the push rod to swing.

The automatic opening and closing mechanism of the container door of the container according to the embodiment of the present invention has at least the following technical effects: the hook is connected to the handle of the container door, the magnetic device attracts the container door, the telescopic assembly controls the hook to pull the handle, and the lock lever on the container door is rotated to unlock, The push rod is controlled by the driving part to swing with the flip bracket as the fulcrum. The slider assembly moves on the push rod. Under the adsorption of the magnetic device, it drives the box door to open or close, realize the automatic opening and closing of the box door, and realize the automation of bulk cargo loading and unloading operations. Improve the safety of work, and can control the swing angle of the push rod through the driving part, and flexibly adjust the opening angle of the box door.

According to some embodiments of the present invention, the slider assembly includes a sliding plate arranged symmetrically up and down, a plurality of main rollers are arranged between the sliding plates, a sliding groove is arranged on the push rod, and the main roller is arranged on the sliding plate. Movement in the slot. Through the movement of the main roller in the chute, the slider assembly moves on the push rod, thereby controlling the opening or closing of the box door. During the process of opening the box door, the slider moves toward the direction close to the flip bracket, and during the process of closing the box door, the slider It moves in the direction away from the flipping bracket, and adopts rolling friction to reduce friction, which is beneficial to the smooth movement of the slider assembly and the smooth adjustment of the box door angle.

According to some embodiments of the present invention, a side plate is provided on the slide plate, a plurality of side rollers are provided on the side plate, a guide rail is provided on the push rod, and the side rollers move on the guide rail. The side rollers move on the guide rail to avoid displacement of the slider assembly in the direction perpendicular to the chute, to ensure the directional movement of the slider assembly in the chute, and to work reliably.

According to some embodiments of the present invention, the magnetic device includes a magnetic block, and a connecting piece penetrating the slider assembly is provided on the magnetic block, a limit sleeve and a buffer spring are sleeved on the connecting piece, and the The limiting sleeve and the buffer spring are respectively arranged on both sides of the slider assembly. The magnetic block attracts the box door. During the closing process of the box door, the slider assembly exerts a thrust on the box door through the magnetic block, and is installed on the connecting piece with the limit sleeve through the buffer spring. The limit sleeve and the connecting piece cooperate with the positioning buffer spring. position, the buffer spring compresses directionally, provides buffer space, avoids the deformation of the box door due to the thrust of the magnetic block, and protects the appearance of the container.

According to some embodiments of the present invention, the telescopic assembly includes a rotating rod hydraulic cylinder and a transmission plate connected with the rotating rod hydraulic cylinder, and a plurality of the hooks are arranged on the transmission plate. The movement of the transmission plate is controlled by the rotary rod hydraulic cylinder, thereby controlling the movement of the hook. When in use, the control hook is close to the handle for easy connection. After use, the control hook is disengaged from the handle and retracted.

According to some embodiments of the present invention, a push plate is provided on the slider assembly, and a buffer rubber in contact with the box door is provided on the push plate. During the closing process of the box door, push the box door through the push plate, increase the contact area between the push rod and the box door, effectively improve the force transmission efficiency, and ensure the force transmission. The buffer rubber contacts the box door to avoid the box door and the box door. The push plate is in direct and rigid contact and deforms to protect the appearance of the container.

According to some embodiments of the present invention, the magnetic block is provided with a handle for controlling the on-off of the magnetic field. The magnetic field of the magnetic block is controlled by the handle to open and close. When in use, the magnetic field is activated to control the magnetic block to attract the box door. After use, the magnetic field is closed, and the magnetic block and the box door are easily separated, and the control is convenient and precise.

According to some embodiments of the present invention, the push rod is provided with a support rotatably connected with the flip support. The push rod is hinged with the flip bracket through the support, the push rod can swing with the flip bracket as a fulcrum, the structure is simple, and the connection is reliable.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

1 is a schematic diagram of the assembly structure of an automatic opening and closing mechanism for a box door according to an embodiment of the present invention;

Figure 2 is a top view of the automatic switch mechanism shown in Figure 1;

Fig. 3 is the structural schematic diagram of the magnetic device shown in Fig. 1;

Fig. 4 is the assembly structure schematic diagram of the magnetic device shown in Fig. 1 and the push rod;

Figure 5 is a schematic structural diagram of the telescopic assembly shown in Figure 1;

FIG. 6 is a schematic structural diagram of the connection between the telescopic assembly shown in FIG. 1 and the handle.

Reference number:

Box door 100, first lock lever 110, first handle 111, second lock lever 120, second handle 121, through hole 130,

Turning bracket 200, driving oil cylinder 210, piston rod 220,

Push rod 300, chute 310, support 320, guide rail 330,

Slider assembly 400, slide plate 410, main roller 420, side plate 430, side roller 440, connecting plate 460, mounting frame 470, fixing frame 480,

Magnetic block 500, connector 510, limit sleeve 520, buffer spring 530, handle 540, first push plate 550, second push plate 560, buffer rubber 570,

The telescopic assembly 600 , the rotating rod hydraulic cylinder 610 , the transmission plate 620 , the first hook 621 , the second hook 622 , the connecting rod 623 , the limit plate 630 , and the inductive limit switch 640 .

Detailed ways

This part will describe the specific embodiments of the present invention in detail, and the preferred embodiments of the present invention are shown in the accompanying drawings. Each technical feature and overall technical solution of the invention should not be construed as limiting the protection scope of the invention.

In the description of the present invention, it should be understood that the azimuth description, such as the azimuth or position relationship indicated by up, down, front, rear, left, right, etc., is based on the azimuth or position relationship shown in the drawings, only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

The following describes an automatic opening and closing mechanism of a container door of a container according to an embodiment of the present invention with reference to FIGS. 1 to 6 .

As shown in FIG. 1 and FIG. 2 , according to the automatic opening and closing mechanism of the container door of the container according to the embodiment of the present invention, the flip bracket 200 is arranged on one side of the container door 100 , and the flip bracket 200 is provided with a push rod 300 and a driving push rod 300 to swing The push rod 300 is slidably provided with a slider assembly 400, the slider assembly 400 is provided with a magnetic device, the magnetic device includes a number of magnetic blocks 500 for attracting the box door 100, and the push rod 300 is provided with a telescopic assembly 600 , the telescopic assembly 600 is provided with several hooks for pulling the door handle of the box. It can be understood that, when in use, the magnetic device attracts the box door 100, is fixed on the box door 100, adjusts the position of the telescopic assembly 600, and the hook is connected to the handle on the lock rod. Extend and control the action of the handle, so as to turn the lock lever to unlock, the driver controls the push rod 300 to swing with the flip bracket 200 as the fulcrum, the slider assembly 400 moves on the push rod 300, and under the adsorption of the magnetic block 500, the box door is opened 100, and the swing angle of the push rod 300 can be controlled by the driver to control the opening angle of the box door 100. After loading, the push rod 300 is controlled to swing to close the box door 100, and the telescopic assembly 600 is retracted and re-locked by the handle Lock the lever, and the flip frame can flip the container to the initial position. During the loading and unloading process, the door 100 is automatically opened and closed, and the degree of automation is high. There is no need for the operator to climb up and close the door, which improves the safety of the operation, and the opening angle of the door 100 can be controlled by the driving part, which can effectively block the dust generated by bulk cargo and maintain the working environment. clean.

Further, the magnetic block 500 is provided with a handle 540 for controlling the on-off of the magnetic field. When in use, turn the handle 540 to activate the magnetic field, and the magnetic block 500 is adsorbed and fixed on the box door 100, and the adsorption is reliable.

It should be noted that, since the container has two box doors 100 arranged symmetrically, the driving member, the push rod 300, the magnetic device and the telescopic assembly are all arranged symmetrically.

In some embodiments of the present invention, the driving member is configured as a driving oil cylinder 210 , and a piston rod 220 is connected between the driving oil cylinder 210 and the push rod 300 . Further, the push rod 300 is provided with a support 320 movably connected with the flip bracket 200 . During the loading and unloading process, when the lock rod is unlocked, the driving oil cylinder 210 controls the piston rod 220 to retract, the push rod 300 swings with the flip bracket 200 as a fulcrum, and drives the box door 100 to open, the piston rod 220 extends, and the push rod 300 swings and drives The box door 100 is closed, the structure is simple, and the control is accurate.

As shown in FIG. 3 , in some embodiments of the present invention, the magnetic device includes a magnetic block 500 . The magnetic block 500 is provided with a connecting member 510 penetrating the slider assembly 400 , and a limiting sleeve 520 and a buffer are sleeved on the connecting member 510 . A spring 530 is provided, and the limiting sleeve 520 and the buffer spring 530 are respectively disposed on both sides of the slider assembly 400 . Specifically, there are two magnetic blocks 500, which are respectively provided at both ends of the slider assembly 400. It should be noted that the number of the magnetic blocks 500 can also be one, three, or four, and is not limited to two. Set according to actual production needs.

It can be understood that during the closing process of the box door 100, the push rod 300 pushes the magnetic block 500 through the slider assembly 400, the magnetic force block 500 exerts a pushing force on the box door 100, and the limit sleeve 520 and the connecting piece 510 cooperate with the positioning buffer spring 530 to cushion the door 100. The spring 530 is directionally compressed by force, buffering the thrust, preventing the container door 100 from being deformed by the thrust of the magnetic block 500, and protecting the appearance of the container.

As shown in FIG. 4 , in some embodiments of the present invention, the slider assembly 400 includes a sliding plate 410 arranged symmetrically up and down, a plurality of main rollers 420 are arranged between the sliding plates 410 , a sliding groove 310 is arranged on the push rod 300 , and the main The roller 420 moves in the chute 310 , further, the slide plate 410 is provided with a side plate 430 , the side plate 430 is provided with a number of side rollers 440 , the push rod 300 is provided with a guide rail 330 , and the side roller 440 moves on the guide rail 330 . When the push rod 300 moves, the main roller 420 moves in the chute 310, and the side rollers 440 are located on both sides of the guide rail 330 and move on the guide rail 330. Rolling friction is used to reduce the friction between the slider assembly 400 and the push rod 300. To ensure smooth movement, under the guiding and positioning action of the guide rail 330, the slider assembly 400 is prevented from being displaced in the direction perpendicular to the chute 310, and the slider assembly 400 is guaranteed to move in the direction of the chute 310, and the operation is reliable.

In some embodiments of the present invention, the slider assembly 400 is provided with a push plate, and the push plate is provided with a buffer rubber 570 in contact with the box door 100 . It can be understood that, during the closing process of the box door 100, the push rod 300 pushes the magnetic block 500 through the slider assembly 400, thereby exerting a pushing force on the box door 100, and adding a push plate can increase the force contact area of the box door 100, effectively To improve force transmission efficiency and ensure reliable force transmission, the push plate is in contact with the container door 100 through the buffer rubber 570 to avoid deformation due to direct rigid contact between the container door 100 and the push plate, and to protect the appearance of the container.

Specifically, there are two push plates, including a first push plate 550 and a second push plate 560 , the first push plate 550 is installed between the two magnetic blocks 500 , and the second push plate 560 is installed on the first push plate 550 Below, and between the first push plate 550, there is an installation frame 470, the installation frame 470 is T-shaped, the magnetic block 500 is passed through the two ends of the horizontal section of the installation frame 470 through the connector 510, and the vertical section of the installation frame 470 is The connecting plate 460 connected with the slider assembly 400 is provided on the upper part, and the structure is simple and compact, so that the transmission between the slider assembly 400 and the magnetic device and the push plate is reliable.

As shown in FIGS. 5 and 6 , in some embodiments of the present invention, the telescopic assembly 600 includes a rotating rod hydraulic cylinder 610 and a transmission plate 620 connected with the rotating rod hydraulic cylinder 610 , and the hook is provided on the transmission plate 620 . Further, a through hole 130 is provided on the handle, and the hook is buckled with the through hole 130 .

Specifically, the rotating rod hydraulic cylinder 610 is mounted on the fixing frame 480 connected to the mounting frame 470 , two inductive limit switches 640 are symmetrically arranged on the rotating rod hydraulic cylinder 610 , and the transmission plate 620 is connected with a limiting plate 630 , which limits the The plate 630 is located between the two inductive limit switches 640. Several hooks connected to the lock lever handle are arranged on the transmission plate 620. There are two hooks, including a first hook 621 and a second hook 622. A connecting rod 623 is connected between the transmission plates 620. Correspondingly, there are two lock rods on each box door 100, which are the first lock rod 110 and the second lock rod 120 respectively. The first lock rod 110 is provided with a The first handle 111 and the second lock lever 120 are provided with a second handle 121 , the first handle 111 and the second handle 121 are both provided with a through hole 130 , the first hook 621 is buckled with the first handle 111 through the through hole 130 , and the second hook 622 is buckled with the second handle 121 through the through hole 130 .

It can be understood that the rotating rod hydraulic cylinder 610 controls the transmission plate 620 to move and get close to the locking rod. After the first hook 621 and the first handle 111 are fastened, the connecting rod 623 is adjusted so that the second hook 622 and the second handle 121 are fastened. , after connection, control the transmission plate 620 to extend or retract through the rotary rod hydraulic cylinder 610, so as to realize the rotation unlocking or locking of the lock rod, and the box door 100 is automatically unlocked and locked. After use, the first hook 621 and the second hook 622 is separated from the first handle 111 and the second handle 121 respectively, and the rotating rod hydraulic cylinder 610 controls the retraction and storage of the transmission plate 620, which has a high degree of automation and reliable operation. During the movement of the transmission plate 620 controlled by the rotary rod hydraulic cylinder 610, the inductive limit switch 640 detects the position of the limit plate 630 in real time, so as to know the position of the transmission plate 620, limit the movement range of the transmission plate 620, prevent the transmission plate 620 from falling out, and ensure Works reliably.

The automatic opening and closing mechanism of a container door of a container according to an embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 6 in a specific embodiment. It is to be understood that the following description is illustrative only and not specific limitation of the invention.

The container door automatic opening and closing mechanism according to the embodiment of the present invention includes container doors 100 symmetrically arranged on the container. Each container door 100 is provided with a first locking rod 110 and a second locking rod 120. The first locking rod 110 A first handle 111 is provided on the second lock lever 120 , a second handle 121 is provided on the second lock rod 120 , and the first handle 111 and the second handle 121 are both provided with through holes 130 , and both sides of the box door 100 are provided with flip brackets 200 . A driving oil cylinder 210 is provided. The driving oil cylinder 210 is connected with one end of the push rod 300 through the piston rod 220. The push rod 300 is provided with a support 320 hinged with the flip bracket 200. Slot 310, the slider assembly 400 includes a sliding plate 410 arranged symmetrically up and down, a number of main rollers 420 are arranged between the sliding plates 410, the main rollers 420 move in the chute 310, a side plate 430 is arranged on one side of the sliding plate 410, and the side plate 430 is A plurality of side rollers 440 are provided, and the push rod 300 is provided with a guide rail 330 located outside the chute 310. The side rollers 440 are respectively arranged on the upper and lower sides of the guide rail 330 and move on the guide rail 330. The upper slide 410 is connected with a connecting plate 460, The connecting plate 460 is provided with a T-shaped mounting bracket 470 , and two ends of the horizontal section of the mounting bracket 470 are respectively provided with magnetic blocks 500 . A limit sleeve 520 and a buffer spring 530 are provided, the limit sleeve 520 and the buffer spring 530 are respectively arranged on both sides of the mounting frame 470 , a handle 540 is arranged at the bottom of the magnetic block 500 , and a first push plate 550 is arranged on the vertical section of the installation frame 470 and the second push plate 560, the first push plate 550 is installed between the two magnetic blocks 500, the first push plate 550 and the second push plate 560 are provided with a buffer rubber 570, and the mounting frame 470 is provided with a mounting telescopic assembly 600 The fixed frame 480, the telescopic assembly 600 includes a rotary rod hydraulic cylinder 610, and a transmission plate 620 connected to the rotary rod hydraulic cylinder 610. The rotary rod hydraulic cylinder 610 is symmetrically provided with an inductive limit switch 640, and the transmission plate 620 is connected with a limit switch A first hook 621 and a second hook 622 are arranged on the transmission plate 620, and a connecting rod 623 is arranged between the second hook 622 and the transmission plate 620. , the first hook 621 is connected with the first handle 111 through the through hole 130 , and the second hook 622 is connected with the second handle 121 through the through hole 130 .

When in use, the container is placed in the turning bracket 200, the driving cylinder 210 drives the piston rod 220 to extend, the push rod 300 is close to the container door 100, until the magnetic block 500 contacts the container door 100, and the buffer spring 530 does not deform, and the handle 540 is rotated. , start the magnetic field, the magnetic block 500 fastens the adsorption box door 100, the driving cylinder 210 drives the piston rod 220 to retract and reset, and controls the movement of the transmission plate 620 through the rotary rod hydraulic cylinder 610, so that the first hook 621 is buckled with the first handle 111 , adjust the connecting rod 623, buckle the second hook 622 with the second handle 121, the two symmetrically arranged box doors 100 are connected with the push rod 300 according to the aforementioned steps, after the connection is completed, start the turning bracket 200 to turn the container to the designated position , control the transmission plate 620 to extend through the rotary rod hydraulic cylinder 610, drive the first handle 111 and the second handle 121 to move, rotate and unlock the first lock rod 110 and the second lock rod 120, after unlocking, the driving cylinder 210 controls the piston rod 220 to shrink , the push rod 300 swings, the slider assembly 400 moves in the chute 310, drives the box door 100 to open, and can adjust the opening angle of the box door 100 as required. The door 100 is driven to close, the hydraulic cylinder 610 controls the transmission plate 620 to retract, rotates and locks the first lock lever 110 and the second lock lever 120, and finally controls the flip bracket 200 to restore the container to the initial position.

According to the automatic opening and closing mechanism of the container door of the container according to the embodiment of the present invention, by setting it in this way, at least some of the following effects can be achieved. By connecting the hook and the handle, the magnetic block 500 attracts the container door 100, and the telescopic assembly 600 controls the hook to pull the handle and rotate the lock. The lever is unlocked, and the push rod 300 is controlled by the driver to swing with the flip bracket 200 as the fulcrum, and the slider assembly 400 moves on the push rod 300. Under the adsorption action of the magnetic block 500, the box door 100 is driven to open or close, so that the box door 100 can be opened or closed. Automatic switch, realizes the automation of bulk cargo loading and unloading operations, improves loading and unloading efficiency and operation safety, saves costs and manpower, and can control the swing angle of the push rod 300 to adjust the opening angle of the box door 100, effectively block dust, and keep the working environment clean. The first hook 621 and the second hook 622 are arranged to be connected with the first lock lever 110 and the second lock lever 120 respectively, a connecting rod 623 is arranged between the second hook 622 and the transmission plate 620, and the first handle 111 and the second handle 121 are not connected. The synchronous action solves the problem that the rotation center of the box door 100 does not coincide with the rotation center of the lock lever, and realizes the automatic unlocking of the box door 100 .

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

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the technical field, various modifications can be made without departing from the purpose of the present invention. kind of change.

Claims (8)

1. An automatic door opening and closing mechanism for a container, comprising:

the overturning bracket is arranged on one side of the box door;

the rod body is rotationally connected with the overturning bracket and is provided with a sliding block component in a sliding manner;

the magnetic device is arranged on the sliding assembly and is magnetically adsorbed with the box door;

the telescopic assembly is arranged on the push rod and is provided with a plurality of hooks for pulling the handle of the box door;

and the driving piece is used for driving the push rod to swing.

2. The automatic door opening and closing mechanism for a container according to claim 1, wherein: the sliding block assembly comprises sliding plates which are arranged symmetrically up and down, a plurality of main rollers are arranged between the sliding plates, a sliding groove is formed in the push rod, and the main rollers move in the sliding groove.

3. The automatic door opening and closing mechanism for a container according to claim 2, wherein: the sliding plate is provided with a side plate, the side plate is provided with a plurality of side rollers, the push rod is provided with a guide rail, and the side rollers move on the guide rail.

4. The automatic door opening and closing mechanism for a container according to claim 1, wherein: the magnetic device comprises a magnetic block, a connecting piece penetrating through the sliding block assembly is arranged on the magnetic block, a limiting sleeve and a buffer spring are sleeved on the connecting piece, and the limiting sleeve and the buffer spring are respectively arranged on two sides of the sliding block assembly.

5. The automatic door opening and closing mechanism for a container according to claim 1, wherein: the telescopic assembly comprises a rotating rod hydraulic cylinder and a transmission plate connected with the rotating rod hydraulic cylinder, and the hook is arranged on the transmission plate.

6. The automatic door opening and closing mechanism for a container according to claim 1, wherein: the sliding block component is provided with a push plate, and the push plate is provided with buffer rubber which is in contact with the box door.

7. The automatic door opening and closing mechanism for a container according to claim 1, wherein: and a handle for controlling the on-off of the magnetic field is arranged on the magnetic block.

8. The automatic door opening and closing mechanism for a container according to claim 1, wherein: and the push rod is provided with a support which is rotationally connected with the overturning bracket.

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