CN111456559B - Automatic opening and closing mechanism of container door - Google Patents

Abstract

The present invention discloses an automatic door opening and closing mechanism for a container, comprising a flip bracket, which is arranged on one side of the door; a push rod, whose rod body is rotatably connected to the flip bracket and is slidably provided with a slider assembly; a magnetic device, which is installed on the sliding assembly and is magnetically adsorbed to the door; a telescopic assembly, which is arranged on the push rod and is provided with a plurality of hooks for pulling the door handle; and a driving member, which is used to drive the push rod to swing. The present invention controls the hook to pull the handle through the telescopic assembly, rotates the lock rod to unlock, controls the push rod to swing through the driving member, moves the slider assembly on the push rod, and the magnetic device adsorbs the door to drive the door to open or close, thereby realizing automatic opening and closing of the door, improving operation safety, and flexibly adjusting the door opening angle by controlling the driving member.

Description

Automatic opening and closing mechanism for container door

Technical Field

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

Background

The container is used for transporting bulk cargos, can rapidly and efficiently transport bulk cargos or cargos with larger liquidity, and is widely applied to transporting grains, coal, chemical raw materials, building materials, garbage, food and other cargos at present. In order to realize loading and unloading of bulk cargoes of the container faster, a user can use a container overturning platform to overturn the container, an operator needs to ascend a handle for rotating a lock rod of the container door, the container door is opened, and after loading, the operator needs to ascend the closed container door again. The door is locked by the rotating handle, the operation safety is low, potential safety hazards exist, during unloading, cargoes in the container flow out fast and the dumping force borne by the door also easily causes injuries to operators, most of existing container overturning platforms are only provided with a door opening device, a door lock rod can be opened, the door can still not be closed, the automation degree is low, particularly, under the condition that the door is subjected to lateral pressure by materials in the container, the position of the container door cannot be controlled, the structure and the size of the container are standardized, special door opening devices are difficult to install additionally on the door, and a large amount of dust flies in the loading and unloading process of bulk cargoes, shielding and protection are lacked, so that the environment of an operation site is bad.

Disclosure of Invention

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

The automatic container door opening and closing mechanism comprises a turnover support, a push rod, a magnetic device, a telescopic assembly and a driving piece, wherein the turnover support is arranged on one side of a container door, the push rod body is in rotary connection with the turnover support, a sliding block assembly is arranged on the push rod in a sliding mode, the magnetic device is arranged on the sliding assembly and is magnetically adsorbed with the container door, the telescopic assembly is arranged on the push rod and is provided with a plurality of hooks for pulling a container door handle, and the driving piece is used for driving the push rod to swing.

The automatic opening and closing mechanism for the container door at least has the following technical effects that the automatic opening and closing mechanism is connected with a door handle through the hook, the magnetic force device adsorbs the door, the telescopic component controls the hook to pull the handle, the lock rod on the door is rotated to unlock, the driving piece controls the push rod to swing by taking the overturning bracket as a fulcrum, the sliding block component moves on the push rod, the door is driven to open or close under the adsorption effect of the magnetic force device, the automatic opening and closing of the door is realized, the automation of bulk cargo loading and unloading operation is realized, the operation safety is improved, the swinging angle of the push rod is controlled through the driving piece, and the opening angle of the door is flexibly adjusted.

According to some embodiments of the invention, the sliding block assembly comprises sliding plates which are symmetrically arranged 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 rollers move in the sliding groove. Through main gyro wheel at spout internal motion, the slider subassembly removes on the push rod to control opening or closing of chamber door, open chamber door in-process, the slider is moved towards being close to upset support direction, closes chamber door in-process, the slider is moved towards leaving upset support direction, and adopts rolling friction, reduces frictional force, is favorable to the slider subassembly to remove smoothly, chamber door angle adjustment is smooth and easy.

According to some embodiments of the invention, the slide 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. The side rollers move on the guide rails, so that the sliding block assembly is prevented from generating displacement in the direction perpendicular to the sliding groove, the sliding block assembly is ensured to move in the sliding groove in a directional manner, and the working is reliable.

According to some embodiments of the invention, 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. The magnetic block adsorbs the chamber door, and the chamber door closes the in-process, and the slider subassembly passes through the magnetic block and applys thrust to the chamber door, installs on the connecting piece that the cover was equipped with the stop collar through buffer spring, and stop collar and connecting piece cooperation location buffer spring's position, buffer spring directional compression provides the buffering space, avoids the chamber door to receive the magnetic block thrust and produce deformation, protection container outward appearance.

According to some embodiments of the invention, the telescopic assembly comprises a rotating rod hydraulic cylinder and a transmission plate connected with the rotating rod hydraulic cylinder, and a plurality of hooks are arranged on the transmission plate. The transmission plate is controlled to move through the rotating rod hydraulic cylinder, so that the hook is controlled to move, and when the hydraulic control device is used, the hook is controlled to be close to the handle, connection is convenient, and after the hydraulic control device is used, the hook is controlled to be separated from the handle and retracted.

According to some embodiments of the invention, the slider assembly is provided with a push plate, and the push plate is provided with buffer rubber contacted with the box door. In the process of closing the box door, the push plate applies thrust to the box door, so that the contact area of the push rod and the box door is increased, the force transmission efficiency is effectively improved, the force transmission is ensured, the deformation caused by the direct rigid contact of the box door and the push plate is avoided through the contact of buffer rubber and the box door, and the appearance of the container is protected.

According to some embodiments of the 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 to be opened and closed through the handle, when the magnetic block is used, the magnetic field is started, the magnetic block is controlled to adsorb the box door, after the magnetic block is used, the magnetic field is closed, the magnetic block is easily separated from the box door, and the control is convenient and accurate.

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

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

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic view of an assembly structure of a door automatic opening and closing mechanism according to an embodiment of the present invention;

FIG. 2 is a top view of the automatic switching mechanism shown in FIG. 1;

FIG. 3 is a schematic view of the magnetic device shown in FIG. 1;

FIG. 4 is a schematic view of the assembled structure of the magnetic device and push rod shown in FIG. 1;

FIG. 5 is a schematic view of the telescoping assembly shown in FIG. 1;

fig. 6 is a schematic view of the telescopic assembly shown in fig. 1 connected to a handle.

Reference numerals:

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

A turnover bracket 200, a driving oil cylinder 210, a piston rod 220,

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

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

The magnetic block 500, the connecting piece 510, the limit sleeve 520, the buffer spring 530, the handle 540, the first push plate 550, the second push plate 560, the buffer rubber 570,

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

Detailed Description

Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.

In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

An automatic opening and closing mechanism for a door of a container according to an embodiment of the present invention will be described with reference to fig. 1 to 6.

As shown in fig. 1 and 2, according to an embodiment of the present invention, a container door automatic opening and closing mechanism of a container, a turnover bracket 200, is provided at one side of a container door 100, a push rod 300 and a driving member driving the push rod 300 to swing are provided on the turnover bracket 200, a slider assembly 400 is slidably provided on the push rod 300, a magnetic device is provided on the slider assembly 400, the magnetic device includes a plurality of magnetic blocks 500 for adsorbing the container door 100, a telescopic assembly 600 is provided on the push rod 300, and a plurality of hooks for pulling a container door handle are provided on the telescopic assembly 600. It can be understood that, when in use, the magnetic device adsorbs the box door 100, fixed on the box door 100, the telescopic assembly 600 is adjusted, the hook is connected with the handle on the lock rod, when the overturning platform overturns the container to the designated position, the telescopic assembly 600 stretches out and controls the handle to act, thereby rotating the lock rod to unlock, the driving piece controls the push rod 300 to swing with the overturning bracket 200 as a fulcrum, the sliding block assembly 400 moves on the push rod 300, under the adsorption of the magnetic block 500, the box door 100 is opened, and the swinging angle of the push rod 300 can be controlled by the driving piece, so as to control the opening angle of the box door 100, after loading is completed, the push rod 300 is controlled to swing to close the box door 100, the telescopic assembly 600 retracts and locks the lock rod again by the handle, and the overturning frame overturns the container to the initial position. In the loading and unloading process, the chamber door 100 is opened and closed automatically, and degree of automation is high, need not operating personnel to ascend a height to close the door, improves the operation security to can effectively shelter from the dust that the bulk cargo produced through driving piece control chamber door 100 opening angle, keep the operation environment clean.

Further, a handle 540 for controlling the on-off of the magnetic field is provided on the magnetic block 500. When the refrigerator door is used, the handle 540 is rotated, the magnetic field is started, the magnetic block 500 is fixedly adsorbed on the refrigerator door 100, the adsorption is reliable, after the refrigerator door is assembled and disassembled, the magnetic field is closed, the magnetic block 500 is demagnetized, and the refrigerator door 100 is easily separated, and the refrigerator door is convenient and accurate to control.

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

In some embodiments of the present invention, the driving member is configured as a driving cylinder 210, and a piston rod 220 is connected between the driving cylinder 210 and the push rod 300. Further, the push rod 300 is provided with a supporter 320 movably connected with the flip bracket 200. In the assembling and disassembling process, in the lock rod unlocking state, the driving oil cylinder 210 controls the piston rod 220 to retract, the push rod 300 swings with the overturning bracket 200 as a fulcrum and drives the box door 100 to open, the piston rod 220 stretches out, and the push rod 300 swings and drives the box door 100 to close, so that 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, a connecting member 510 penetrating through the slider assembly 400 is provided on the magnetic block 500, a stop collar 520 and a buffer spring 530 are sleeved on the connecting member 510, and the stop collar 520 and the buffer spring 530 are separately provided at two sides of the slider assembly 400. Specifically, two magnetic blocks 500 are disposed at two ends of the slider assembly 400, and it should be noted that the number of the magnetic blocks 500 may be one, three, four, or the like, and is not limited to two, and is set according to actual production requirements.

It can be appreciated that in the process of closing the door 100, the push rod 300 pushes the magnetic block 500 through the slider assembly 400, the magnetic block 500 applies a pushing force to the door 100, the stop collar 520 and the connecting piece 510 cooperate to position the buffer spring 530, the buffer spring 530 is stressed to compress directionally, the pushing force is buffered, the deformation of the door 100 caused by the pushing force of the magnetic block 500 is avoided, and the appearance of the container is protected.

As shown in fig. 4, in some embodiments of the present invention, the slider assembly 400 includes sliding plates 410 symmetrically disposed up and down, a plurality of main rollers 420 are disposed between the sliding plates 410, a sliding groove 310 is disposed on the push rod 300, and the main rollers 420 move in the sliding groove 310, further, a side plate 430 is disposed on the sliding plate 410, a plurality of side rollers 440 are disposed on the side plate 430, a guide rail 330 is disposed on the push rod 300, and the side rollers 440 move on the guide rail 330. When the push rod 300 moves, the main roller 420 moves in the chute 310, the side rollers 440 are positioned at two sides of the guide rail 330 and move on the guide rail 330, rolling friction is adopted, friction force between the slide block assembly 400 and the push rod 300 is reduced, smooth movement is ensured, the slide block assembly 400 is prevented from generating displacement in the direction perpendicular to the chute 310 under the guiding and positioning action of the guide rail 330, and the slide block assembly 400 moves in the chute 310 in a directional manner, so that the working is reliable.

In some embodiments of the present invention, a push plate is provided on the slider assembly 400, and a buffer rubber 570 is provided on the push plate to be in contact with the door 100. It can be appreciated that in the process of closing the door 100, the push rod 300 pushes the magnetic block 500 through the slide block assembly 400, so that a pushing force is applied to the door 100, a push plate is additionally arranged, the stressed contact area of the door 100 can be increased, the force transmission efficiency is effectively improved, the force transmission reliability is ensured, the push plate is contacted with the door 100 through the buffer rubber 570, the deformation caused by the direct rigid contact of the door 100 and the push plate is avoided, and the appearance of the container is protected.

Specifically, the push plate is provided with two, including first push pedal 550 and second push pedal 560, first push pedal 550 is installed between two magnetic force blocks 500, second push pedal 560 is installed in first push pedal 550 below, and be connected with mounting bracket 470 between the first push pedal 550, mounting bracket 470 is the T type, magnetic force blocks 500 wear to establish at the horizontal segment both ends of mounting bracket 470 through connecting piece 510, be provided with the connecting plate 460 of being connected with slider assembly 400 on the vertical section of mounting bracket 470, and is simple in structure, compact for the transmission is reliable between slider assembly 400 and the magnetic force device, the push pedal.

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

Specifically, the rotating rod hydraulic cylinder 610 is mounted on a fixing frame 480 connected with the mounting frame 470, two induction limit switches 640 are symmetrically arranged on the rotating rod hydraulic cylinder 610, a limit plate 630 is connected on the transmission plate 620, the limit plate 630 is located between the two induction limit switches 640, a plurality of hooks connected with the lock rod handles are arranged on the transmission plate 620, two hooks are arranged, each hook comprises a first hook 621 and a second hook 622, a connecting rod 623 is connected between each second hook 622 and the transmission plate 620, corresponding two lock rods on each fan box door 100 are respectively a first lock rod 110 and a second lock rod 120, a first handle 111 is arranged on each first lock rod 110, a second handle 121 is arranged on each second lock rod 120, each first handle 111 and each second handle 121 are respectively provided with a through hole 130, each first hook 621 is buckled with each first handle 111 through each through hole 130, and each second hook 622 is buckled with each second handle 121 through each through hole 130.

It can be appreciated that the rotating rod hydraulic cylinder 610 controls the transmission plate 620 to move and approach to the lock 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 the connection, the transmission plate 620 is controlled to extend or retract through the rotating rod hydraulic cylinder 610, the lock rod is unlocked or locked in a rotating manner, the door 100 is unlocked and locked automatically, after the use is completed, the first hook 621 and the second hook 622 are separated from the first handle 111 and the second handle 121 respectively, the rotating rod hydraulic cylinder 610 controls the transmission plate 620 to retract and store, the degree of automation is high, and the operation is reliable. In the process of controlling the movement of the transmission plate 620 by the rotating rod hydraulic cylinder 610, the sensing limit switch 640 detects the position of the limit plate 630 in real time, so that the position of the transmission plate 620 is known, the movement range of the transmission plate 620 is limited, the transmission plate 620 is prevented from falling off, and the working reliability is ensured.

An automatic opening and closing mechanism for a door of a container according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 6. It is to be understood that the following description is exemplary only and is not intended to limit the invention in any way.

The automatic door opening and closing mechanism of the container according to the embodiment of the invention comprises door 100 symmetrically arranged on the container, each door 100 is provided with a first lock rod 110 and a second lock rod 120, the first lock rod 110 is provided with a first handle 111, the second lock rod 120 is provided with a second handle 121, the first handle 111 and the second handle 121 are both provided with through holes 130, both sides of the door 100 are provided with a turnover bracket 200, the turnover bracket 200 is provided with a driving oil cylinder 210, the driving oil cylinder 210 is connected with one end of a push rod 300 through a piston rod 220, the push rod 300 is provided with a support 320 hinged with the turnover bracket 200, the other end of the push rod 300 is provided with a slide block assembly 400 and a slide groove 310, the slide block assembly 400 comprises slide plates 410 which are arranged vertically symmetrically, a plurality of main rollers 420 are arranged between the slide plates 410, the main rollers 420 move in the slide grooves 310, one side of the slide plates 410 is provided with a side plate 430, a plurality of side rollers 440 are arranged on the side plate 430, the push rod 300 is provided with a guide rail 330 positioned at the outer side of the sliding groove 310, side rollers 440 are respectively arranged at the upper side and the lower side of the guide rail 330 and move on the guide rail 330, a sliding plate 410 positioned above is connected with a connecting plate 460, a T-shaped mounting frame 470 is arranged on the connecting plate 460, two ends of the horizontal section of the mounting frame 470 are respectively provided with a magnetic block 500, the magnetic block 500 is provided with a connecting piece 510 penetrating through the mounting frame 470, the connecting piece 510 is sleeved with a limit sleeve 520 and a buffer spring 530, the limit sleeve 520 and the buffer spring 530 are respectively arranged at two sides of the mounting frame 470, the bottom of the magnetic block 500 is provided with a handle 540, the vertical section of the mounting frame 470 is provided with a first push plate 550 and a second push plate 560, the first push plate 550 is arranged between the two magnetic blocks 500, the first push plate 550 and the second push plate 560 are respectively provided with a buffer rubber 570, the mounting frame 470 is provided with a fixing frame 480 for mounting the telescopic component 600, the telescopic assembly 600 comprises a rotating rod hydraulic cylinder 610 and a transmission plate 620 connected with the rotating rod hydraulic cylinder 610, wherein the rotating rod hydraulic cylinder 610 is symmetrically provided with sensing limit switches 640, the transmission plate 620 is connected with a limit plate 630, the limit plate 630 is positioned between the two sensing limit switches 640, the transmission plate 620 is provided with a first hook 621 and a second hook 622, 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 a through hole 130, and the second hook 622 is connected with the second handle 121 through the through hole 130.

When the container is used, the container is placed in the overturning bracket 200, the driving oil cylinder 210 drives the piston rod 220 to extend, the push rod 300 approaches the container door 100 until the magnetic block 500 is contacted with the container door 100, the buffer spring 530 is not deformed, the handle 540 is rotated, the magnetic field is started, the magnetic block 500 is fastened to adsorb the container door 100, the driving oil cylinder 210 drives the piston rod 220 to retract and reset, the transmission plate 620 is controlled to move through the rotating rod hydraulic cylinder 610, the first hook 621 is buckled with the first handle 111, the adjusting connecting rod 623 is used for buckling the second hook 622 with the second handle 121, the symmetrically arranged two container doors 100 are connected with the push rod 300 according to the requirement, after the connection is completed, the overturning bracket 200 is started to overturn the container to a designated position, the transmission plate 620 is controlled to extend to drive the first handle 111 and the second handle 121 to act, the first lock rod 110 and the second lock rod 120 are unlocked in a rotating mode, after the unlocking, the driving oil cylinder 210 is controlled to retract the piston rod 220, the push rod 300 is swung, the sliding block assembly 400 is controlled to move in the sliding groove 310, the container door 100 is driven to open, and the opening angle of the container door 100 can be adjusted according to the requirement, the adjusting oil cylinder 210 is controlled to control the second hook 622 to buckle with the second handle 121, the first hook 622 is buckled with the second handle 121, the first handle is buckled to be buckled, the original position is controlled to swing, the first lock rod is controlled to extend the first handle and the first handle is closed, and the first handle is controlled to swing, and the first lock rod is opened, and the first is opened.

According to the container door automatic opening and closing mechanism of the container, at least some effects of the following can be achieved through the arrangement, the magnetic block 500 is connected with the handle, the telescopic component 600 controls the hook to pull the handle, the lock rod is rotated to unlock, the push rod 300 is controlled by the driving piece to swing by taking the overturning bracket 200 as a fulcrum, the sliding block component 400 moves on the push rod 300, the door 100 is driven to be opened or closed under the adsorption action of the magnetic block 500, the automatic opening and closing of the door 100 is achieved, the automation of bulk cargo loading and unloading operation is achieved, the loading and unloading efficiency and the operation safety are improved, the cost and the labor are saved, the swinging angle of the push rod 300 can be controlled, the opening angle of the door 100 is adjusted, dust is effectively shielded, the operation environment is kept clean, the first hook 621 and the second hook 622 are respectively connected with the first lock rod 110 and the second lock rod 120, the connecting rod 623 is arranged between the second hook 622 and the transmission plate 620, the first handle 111 and the second handle 121 do not synchronous action, the problem that the rotation center of the door 100 and the rotation center of the lock rod are not coincident is solved, and the door 100 is automatically unlocked.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.

Claims (5)

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

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

The push rod is rotationally connected with the turnover support, the push rod is provided with a sliding block assembly in a sliding manner, 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, sliding grooves are formed in the push rod, the main rollers move in the sliding grooves, side plates are arranged on the sliding plates, a plurality of side rollers are arranged on the side plates, a guide rail is arranged on the push rod, and the side rollers move on the guide rail;

the magnetic device is arranged on the sliding block 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 a door handle, the telescopic assembly comprises a rotary rod hydraulic cylinder and a transmission plate connected with the rotary rod hydraulic cylinder, the hooks are arranged on the transmission plate and are two, each hook comprises a first hook and a second hook, a connecting rod is connected between the second hook and the transmission plate, each lock rod on the door is provided with two lock rods, namely a first lock rod and a second lock rod, the first lock rod is provided with a first handle, the second lock rod is provided with a second handle, the first handle and the second handle are both provided with through holes, and the first hooks are buckled with the first handles through the through holes and the second hooks are buckled with the second handles through the through holes;

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 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.

3. The automatic door opening and closing mechanism for a container according to claim 1, wherein the slider assembly is provided with a push plate, and the push plate is provided with a buffer rubber contacting with the door.

4. The automatic door opening and closing mechanism for a container according to claim 2, wherein the magnetic block is provided with a handle for controlling the on-off of the magnetic field.

5. The automatic door opening and closing mechanism for a container according to claim 1, wherein the push rod is provided with a support rotatably connected with the turnover bracket.