CN113602950A

CN113602950A - Automatic dust removal container upset hoist

Info

Publication number: CN113602950A
Application number: CN202110970474.9A
Authority: CN
Inventors: 王其生
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2021-11-05

Abstract

The invention relates to the technical field of port handling machinery, and particularly discloses an automatic dust removal container overturning lifting appliance which comprises an upper frame, an overturning frame and a dust removal assembly, wherein the upper frame is provided with a lifting mechanism; the turning frame is provided with a rotary locking mechanism for fixing the container corresponding to the container corner fitting, and one side of the turning frame corresponding to the container door is provided with a door opening mechanism for opening or closing the container door; the dust removal assembly comprises a dust removal host positioned above one side of the overturning frame corresponding to the container door, and dust generated by the equipment in the process of unloading the container goods can be removed through the dust removal assembly; the processed dust is temporarily stored in a dust storage hopper at the bottom of the dust removal main machine and can be conveniently cleaned at any time; compared with the existing various container turning lifting appliances, when the lifting appliance is used, the container can be automatically opened, turned over to unload goods nearby, raised dust is slight, air pollution is basically avoided after dust removal, and the lifting appliance is convenient to operate, safe and efficient, and has higher practical value and popularization value.

Description

Automatic dust removal container upset hoist

Technical Field

The invention relates to the technical field of port handling machinery, in particular to an automatic dust removal container overturning lifting appliance.

Background

At present, the convenient and fast transportation mode of 'collecting, changing and scattering' is increasingly adopted for the goods such as the scattered ore, the coke, the petroleum coke and the like at home and abroad; however, the container turning sling used for the key procedure of 'collecting, changing and scattering' for loading the container cargos into the ship does not have the dust removal function, and when the container enters the cabin and is opened, the dust is serious, and the environment is polluted, so that the automatic dust removal function is developed, the environment is not polluted, the physical health of operators is favorably protected, the container turning sling is suitable for the bulk cargos in large port loading and unloading machines, the technical defects are changed, the efficiency and the utilization rate of port loading and unloading are improved, and the environmental protection is particularly important.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an automatic dust removal container overturning lifting appliance which can automatically remove dust in the container unloading process and avoid the generation of dust pollution.

The technical scheme adopted by the invention is as follows: an automatic dust removal container overturning hanger comprises an upper frame, an overturning frame and a dust removal assembly; the upper frame is provided with a turnover connecting part extending towards the lower part of the upper frame; the turning frame is provided with a rotary locking mechanism for fixing the container at a position corresponding to the container corner fitting, the middle part of the turning frame is hinged with the lower end of the turning connecting part and can rotate around the lower end of the turning connecting part, and one side of the turning frame corresponding to the container door is provided with a door opening mechanism for opening or closing the container door; the dust removal assembly comprises a dust removal host positioned above the turning frame corresponding to one side of the container door, a dust collection cover is arranged at an air inlet of the dust removal host, and an ash storage hopper capable of sliding into or out of the bottom of the dust removal host is further arranged on the turning frame in a sliding manner.

In the technical scheme, the overturning frame hinged with the overturning connecting part of the upper frame can be used for overturning the container; the container is hung on the overturning frame through the rotary locking mechanism, and the container door can be opened through the door opening mechanism after the container is overturned downwards along with the overturning frame, so that door opening and unloading are realized; dust removal treatment is carried out on the raised dust generated in the unloading process through a dust removal component; when the dust removal main machine of the dust removal component operates, the dust generated when goods are taken out of the box can be sucked into the dust removal main machine through the air inlet at the position of the dust collection cover for dust removal treatment, and the treated dust is temporarily stored in the dust storage hopper at the bottom of the dust removal main machine and can be conveniently cleaned at any time.

Further, the overturning connecting part is fixedly connected with the upper frame or is in sliding fit with the upper frame, and when the overturning connecting part is in sliding fit with the upper frame, the end part of the overturning connecting part is connected with the translation oil cylinder on the upper frame.

Further, the turnover connection part is arranged in a triangular frame.

Furthermore, a turnover oil cylinder is arranged between the upper frame and the turnover frame, one end of the turnover oil cylinder is hinged to one side of the upper end of the turnover connecting portion, and the other end of the turnover oil cylinder is hinged to the turnover frame in a sliding mode.

And when the turnover frame turns downwards, the ash storage hopper is pulled out from the bottom of the dust removal host.

Furthermore, the twist lock mechanism comprises a twist lock, a nut and a twist lock sheath, the twist lock is rotatably arranged in the nut, a bolt for fixing the twist lock is inserted in the periphery of the nut, the twist lock sheath is positioned at the lower end of the nut and fixedly connected with the turnover frame, a control rope which is arranged around the twist lock mechanism and connected with the nut of each twist lock mechanism is arranged on the inner side of the turnover frame, the control rope bypasses a plurality of direction-changing pulleys arranged in the turnover frame, two ends of the control rope are connected with two ends of a pull rod arranged on the turnover frame, the middle part of the pull rod is hinged with the turnover frame, the pull rod is further connected with a reset spring, and the rotation of the pull rod can enable the twist lock mechanism to lift or put down the container.

Furthermore, an eyelet bolt penetrates through the return spring, one end of the eyelet bolt is hinged with the pull rod, and the other end of the eyelet bolt is hinged with the overturning frame in a sliding mode.

Furthermore, the door opening mechanism comprises rotating arms arranged on the overturning frame and corresponding to two sides of the container door, the two rotating arms are connected with a rotating arm driving mechanism for driving the rotating arms to rotate, one of the rotating arms is connected with a door blocking rod abutting against the container door, and the middle parts of the two rotating arms are provided with ejector rod oil cylinders for ejecting the container door; the end parts of the two rotating arms are also provided with inner pliers and outer pliers, and the rotating arms are also provided with clamp oil cylinders, two ends of each clamp oil cylinder are respectively hinged with the inner pliers and the outer pliers.

Furthermore, the rotating arm driving mechanism comprises a driving gear fixed at the end part of the rotating arm, a driving rack and a rotating arm oil cylinder, the driving gear is meshed with the driving rack, and the end part of the driving rack is connected with a sliding plug rod end of the rotating arm oil cylinder fixed on the turnover frame.

Furthermore, the rotating arm provided with the door blocking rod is provided with a conical sleeve, and the upper end of the door blocking rod is provided with a conical column matched with the conical sleeve.

The invention has the beneficial effects that: the dust generated by the equipment in the process of unloading the container goods can be removed through the dust removing component; the processed dust is temporarily stored in a dust storage hopper at the bottom of the dust removal main machine and can be conveniently cleaned at any time; compared with the existing various container turning lifting appliances, when the lifting appliance is used, the container can be automatically opened, turned and unloaded near the ground, raised dust is slight, air pollution is basically avoided after dust removal, and the operation is convenient; the box door cannot be damaged by turning over the box after the door is fully opened, and the box is safe and reliable; the working efficiency of bulk cargo shipment is high; the height is low, and the product can be shipped after being assembled in a factory; the invention has higher practical value and popularization value.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a front view of a single container turning spreader according to a first embodiment of the present invention;

fig. 2 is a structural diagram of an upper frame of a single container turning spreader according to an embodiment of the present invention;

fig. 3 is a structural diagram of a turning frame of a single container turning hanger according to an embodiment of the present invention;

fig. 4 is a structural diagram of a twist lock mechanism of a single container turning spreader according to an embodiment of the present invention 1;

fig. 5 is a structural diagram of a twist lock mechanism of a single container turning spreader according to an embodiment of the present invention 2;

fig. 6 is a structural diagram 1 of a door opening mechanism of a single container turning lifting appliance according to an embodiment of the present invention;

fig. 7 is a structural diagram 2 of a door opening mechanism of a single container turning lifting appliance according to an embodiment of the present invention;

fig. 8 is a schematic diagram illustrating a turning and dedusting state of the single container turning spreader according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a turning dust removal state of the dual container turning spreader according to the second embodiment of the present invention.

Reference numerals: the dust collection device comprises an upper frame 100, a turnover frame 200, a turnover connecting part 110, a dust collection host 300, a dust collection cover 400, a dust storage hopper 500, a translation oil cylinder 600, a turnover oil cylinder 700, a pull rod 800, a rotary locking mechanism 900, a rotary lock 910, a nut 920, a rotary locking sheath 930, a control rope 940, a redirection pulley 950, a pull rod 960, a return spring 970, a swing bolt 980, a bolt 990, a door opening mechanism 1000, a rotating arm 1010, a door stop lever 1020, a top rod oil cylinder 1030, an inner clamp 1040, an outer clamp 1050, a clamp oil cylinder 1060, a driving gear 1070, a driving rack 1080 and a rotating arm oil cylinder 1090.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

Example one

As shown in fig. 1 to 8, according to a first embodiment of the present invention, there is provided an automatic dust removal container turning spreader for turning a container and automatically performing dust removal processing during the container cargo handling process, thereby reducing dust pollution; the dust removal device specifically comprises an upper frame 100, a turnover frame 200 and a dust removal assembly; the upper frame 100 is provided with a turnover connection part 110 extending to the lower part of the upper frame 100; the overturning connecting part 110 is arranged in a triangular frame shape, and the overturning connecting part 110 is fixedly connected with one end of the upper frame 100; a rotary locking mechanism 900 for fixing the container is arranged at the position of the turnover frame 200 corresponding to the container corner fitting, the middle part of the turnover frame 200 is hinged with the lower end of the turnover connecting part 110 and can rotate around the lower end of the turnover connecting part 110, and a door opening mechanism 1000 for opening or closing the container door is arranged at one side of the turnover frame 200 corresponding to the container door; the dust removal assembly comprises a dust removal host 300 which is positioned above one side of the turnover frame 200 corresponding to the container door, a dust collection cover 400 is arranged at an air inlet of the dust removal host 300, and a dust storage hopper 500 which can slide in or out of the bottom of the dust removal host 300 is further arranged on the turnover frame 200 in a sliding manner.

As shown in fig. 1 to 8, in the first embodiment, the turning connection part 110 at one end of the upper frame 100 is fixedly arranged for rotatably installing the turning frame 200 to constitute a single container turning spreader apparatus for automatically removing dust; specifically, the turnover frame 200 hingedly coupled to the turnover connection part 110 of the upper frame 100 can be used to turn over the container; the container is fixed on the turning frame 200 through the turning lock mechanism 900, after the turning frame 200 is hinged with the turning connecting part 110 at one end of the upper frame 100, the container can be turned downwards along with the turning frame, and then the container door can be opened through the door opening mechanism 1000, so that door opening and unloading are realized, and the turning connecting part 110 is arranged in a triangular shape, so that the structural strength of the upper frame 100 is improved, and the rotating stability of the turning frame 200 is ensured; dust generated in the overturning and unloading process of the goods in the container is removed through the dust removing component; when the dust removal main machine 100 of the dust removal assembly operates, the flying dust generated by unloading can be sucked into the air inlet position below the dust collection cover 400, the dust sucked into the dust removal main machine 300 is collected through the dust storage hopper 500, and the dust storage hopper 500 can slide out of the bottom of the dust removal main machine 100, so that the collected dust and the like can be conveniently cleaned; compared with the existing various container turning lifting appliances, the device can turn over and unload the container to the ground, effectively inhibits dust, basically has no air pollution after dust removal, and is convenient to operate.

As described above, the turning connection portion 110 hinged to the turning connection portion 110 of the upper frame 100 can rotate to turn the container, in this embodiment, a turning cylinder 700 is disposed between the upper frame 100 and the turning frame 200, one end of the turning cylinder 700 is hinged to one side of the upper end of the turning connection portion 110, and the other end of the turning cylinder 700 is hinged to the turning frame 200. Thus, when the turnover cylinder 700 is driven to extend and retract, the turnover frame 200 can rotate around the turnover connection part 110, and automatic loading and unloading operations of the container are realized.

In this embodiment, the dust removal host 300 preferably uses a bag-type dust removal device of a corresponding specification, so as to conveniently clean dust and the like collected by the device; in this embodiment, the dust hopper 500 is installed at the lower end of the dust removing main unit 300, and in order to facilitate taking out, a pull rod 800 is provided between the dust hopper 500 and the turnover connection portion 110, one end of the pull rod 800 is hinged to the end of the dust hopper 500, and the other end is hinged to the side of the turnover connection portion 110 or the turnover frame 200, and when the turnover frame 200 is turned over downward, the dust hopper 500 is pulled out of the dust removing main unit 300. Therefore, the ash storage hopper 500 can slide out or into the dust removal host 300 due to the sliding arrangement, and when the turnover frame 200 is turned over, the ash storage hopper 500 automatically slides out of the dust removal host 300, so that the cleaning is convenient; in addition, the ash bucket 500 in this embodiment is arranged in a dustpan shape, and the ash discharge operation process of the ash bucket 500 is as follows: when one end of the pull rod 800, which is far away from the ash storage hopper 500, is hinged with the overturning connecting part 110, the overturning frame automatically pulls the ash storage hopper 500 out of the dust removal host 300 in the downward overturning process, and the dust in the ash storage hopper 500 can be emptied after being pulled out; when the turnover frame 200 is turned upwards to a horizontal position, the ash storage hopper 500 can automatically slide into the dust removal host 300; when the dust hopper 500 does not need to be cleaned, one end of the pull rod 800 far away from the dust hopper 500 is hinged with the outer side of the turnover frame 200, so that the dust hopper 500 can be prevented from being pulled out of the dust removal host 300 in the loading and unloading process.

As mentioned above, the dust collection cover 400 is further disposed at the air inlet of the dust collection main unit 300, the dust collection cover 400 is reasonably disposed, most dust raising areas can be covered, the air inlet is open, the air inlet line is short, and the resistance is small, so that the dust collection efficiency is high; because the dust remover is small in height and size, the internal space of the roll-over stand frame is effectively utilized, the overall height of the lifting appliance is controlled within the limit height of road transportation, and the lifting appliance can be completely assembled and shipped in a factory.

As shown in fig. 1 to 8, the twist-lock mechanism 900 for fixing or loading/unloading a container in this embodiment includes a twist-lock 910, a nut 920 and a twist-lock sheath 930, the twist lock 910 is screwed in the nut 920, the outer circumference of the nut 920 is inserted with a bolt 990 for fixing the twist lock 910, a twist lock sheath 930 is positioned at the lower end of the nut 920 and is fixedly connected with the turnover frame 200, the inner side of the turnover frame 200 is provided with a control rope 940 which is arranged around the rotary locking mechanisms 900 and is connected with the nuts 920 of each rotary locking mechanism 900, the control rope 940 winds a plurality of direction-changing pulleys 950 arranged in the turnover frame 200, two ends of the control rope 940 are connected with two ends of a pull rod 960 arranged on the turnover frame 200, the middle part of the pull rod 960 is hinged with the turnover frame 200, the pull rod 960 is also connected with a return spring 970, through the arrangement, the twist lock 910 of the twist lock mechanism 900 can be clamped into or withdrawn from the fixing hole at the upper end of the container, thereby realizing the fixing, loading and unloading of the container; in order to control the operation of the twist locks 910 at the same time, the present embodiment uses a lever 960 for control, a control rope 940 connected to the lever 960 passes around the nut 920 outside each twist lock 910, and the rotation of the lever 960 can fix or dismount the container by the twist lock mechanism 900; since the trigger 960 is connected with the return spring 970, the trigger 960 can be automatically reset after being rotated. In addition, a swing bolt 980 is inserted into the return spring 970 in this embodiment, and one end of the swing bolt 980 is hinged to the lever and the other end is slidably hinged to the tilting frame 200. Thus, the arrangement of the swing bolt 980 can improve the mounting stability of the trigger 960, and facilitate the rotation of the trigger 960; in this embodiment, the lower end of the swing bolt 980 has a threaded end which is inserted in a central radial hole of a pivot pin on the roll-over frame 200 to effect sliding articulation; thus, when the trigger 900 is rotated, the lower end of the swing bolt 980 can slide in the radial hole of the pivot pin, thereby facilitating control.

As shown in fig. 1 to 8, in practical operation, when a container needs to be opened to unload goods after being turned over, a door opening mechanism 1000 for opening and closing the container door in the present embodiment includes a rotating arm 1010 rotatably disposed on the turning frame 200 corresponding to two sides of the container door, the two rotating arms 1010 are connected to a rotating arm driving mechanism for driving the rotating arms 1010 to rotate, one of the rotating arms 1010 is connected to a door blocking lever 1020 abutting against the container door, and a push rod cylinder 1030 for pushing the container door open is disposed in the middle of the two rotating arms 1010; the end parts of the two rotating arms 1010 are also provided with inner pincers 1040 and outer pincers 1050, and the rotating arms 1010 are also provided with clamp oil cylinders 1060, two ends of which are respectively hinged with the inner pincers 1040 and the outer pincers 1050.

Through the above setting, the shutter lever 1020 that sets up in this embodiment arranges along the direction of gravity for shutter lever 1020 can lean on with the container door counterbalance before the upset is unloaded at the container, can avoid the container to lead to the chamber door to be strutted and produce the problem that the goods was revealed because of the goods is too full, and when the container upset back downwards, shutter lever 1020 opens back automatic and container door phase separation at rocking arm 1010, avoids unloading the production to the container and interferes. When unloading, the inner pincers 1040 and the outer pincers 1050 fix the container door under the driving of the clamp oil cylinder 1060, and then the rotating arm 1010 is driven to rotate by the rotating arm driving mechanism, so that the container door can be automatically opened. The boom driving mechanism in this embodiment includes a driving gear 1070 fixed to an end of the boom 1010, the driving gear 1070 and an outside thereof are provided with a driving rack 1080 engaged with the driving gear 1070, and an end of the driving rack 1080 is connected to a sliding rod end of a boom cylinder 1090 fixed to the tilt frame 200. Thus, when the driving rack 1080 is driven by the rotating arm cylinder 1090 to move, the rotating arm 1010 can rotate around the driving gear 1070, and the container door can be automatically opened.

In order to ensure that the door bar 1020 is stably connected with a corresponding rotating arm 1010, the present embodiment is provided with a tapered sleeve on the rotating arm provided with the door bar 1020, and the upper end of the door bar 1020 is provided with a tapered column movably matched with the tapered sleeve. Thus, the tapered post and the tapered sleeve are movably engaged to enable the door bar 1020 to be stably mounted on the rotating arm 1010 and to be automatically separated from the container door when the rotating arm 1010 rotates.

In practical application, the loading and unloading operation process comprises the following steps: shipping operation → box of spreader → pulling the pull lever → the steel wire rope pulls the rotating locks at the four corners of the roll-over stand to rotate synchronously by 90 degrees → the rotating arm rotates inwards → the inside and outside clamp jaws open, the container door is tightly attached → the container is lifted → the container enters the cabin to reach the preset position → the inside and outside clamp jaws close → the push rod oil cylinder sliding plug rod extends → the rotating arm oil cylinder sliding plug rod extends, the rotating arm rotates outwards, the container door opens → the dust remover starts → the roll-over oil cylinder sliding plug rod extends, the roll-over stand with the container turns over downwards to unload the goods in the box → the goods in the box is unloaded, the roll-over oil cylinder sliding plug rod retracts, the roll-over stand with the container returns horizontally upwards → the pull lever, the rotating lock rotates by 90 degrees, unlocking → the flow is finished.

Example two

As shown in fig. 9, unlike the first embodiment, the turning connecting parts 110 of the upper frame 100 are slidably disposed at both ends of the upper frame 100 to form an automatic dust removing double container turning spreader, in the present embodiment, the turning connecting parts 110 are slidably engaged with both ends of the upper frame 100, and the ends of the turning connecting parts 110 are connected to the translation cylinders 600 disposed on the upper frame 100. Other structures in this embodiment are the same as those in the first embodiment, when the turnover connection part 110 is slidably disposed at two ends of the upper frame 100, the sliding wheel set located at the upper end of the turnover connection part 110 is in rolling fit with the upper frame 100, so that the turnover connection part 110 is driven by the translation cylinder 600 to stably slide along the horizontal direction of the upper frame 100; in this way, the distance between the two turning-over joints 110 can be adjusted by the translation cylinder 600 on the upper frame 100, so as to realize the automatic unloading and automatic dust removing operation of the container in the same loading and unloading manner as the first embodiment.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. An automatic dust removal container overturning lifting appliance is characterized in that a lifting device is arranged on the container overturning lifting appliance; comprises an upper frame (100), a turnover frame (200) and a dust removal component;

the upper frame (100) is provided with a turnover connecting part (110) extending to the lower part of the upper frame (100);

a rotary locking mechanism (900) for fixing the container is arranged at the position, corresponding to the container corner fitting, of the turnover frame (200), the middle part of the turnover frame (200) is hinged with the lower end of the turnover connecting part (110) and can rotate around the lower end of the turnover connecting part (110), and a door opening mechanism (1000) for opening or closing the container door is arranged at one side, corresponding to the container door, of the turnover frame (200);

the dust removal assembly comprises a dust removal host (300) which is positioned above the turnover frame (200) corresponding to one side of the container door, a dust collection cover (400) is arranged at an air inlet of the dust removal host (300), and an ash storage hopper (500) which can slide into or slide out of the bottom of the dust removal host (300) is further arranged on the turnover frame (200) in a sliding manner.

2. The automatic dusting container-turning spreader of claim 1;

the turnover connecting part (110) is fixedly connected with the upper frame (100) or is in sliding fit with the upper frame (100), and when the turnover connecting part (110) is in sliding fit with the upper frame (100), the end part of the turnover connecting part (110) is connected with the translation oil cylinder (600) on the upper frame (100).

3. The automatic dusting container-turning spreader of claim 1 or 2;

the turnover connecting parts (110) are arranged in a triangular frame.

4. The automatic dusting container-turning spreader of claim 1 or 2;

and a turnover oil cylinder (700) is arranged between the upper frame (100) and the turnover frame (200), one end of the turnover oil cylinder (700) is hinged with one side of the upper end of the turnover connecting part (110), and the other end of the turnover oil cylinder is hinged with the turnover frame (200) in a sliding manner.

5. The automatic dusting container-turning spreader of claim 1 or 2;

a pull rod (800) is arranged between the ash storage hopper (500) and the overturning connecting part (110), one end of the pull rod (800) is hinged to the end part of the ash storage hopper (500), the other end of the pull rod is hinged to the side edge of the overturning connecting part (110) or the overturning frame (200), and when the overturning frame (200) overturns downwards, the ash storage hopper (500) is pulled out from the bottom of the dust removal host (300).

6. The automatic dusting container-turning spreader of claim 1 or 2;

the twist lock mechanism (900) comprises a twist lock (910), a nut (920) and a twist lock sheath (930), the rotary lock (910) is arranged in the nut (920) in a rotating way, a bolt (990) for fixing the rotary lock (910) is inserted in the periphery of the nut (920), a rotary lock sheath (930) is positioned at the lower end of the nut (920) and is fixedly connected with the turnover frame (200), the inner side of the turnover frame (200) is provided with a control rope (940) which is arranged around the rotary locking mechanisms (900) and is connected with the nuts (920) of each rotary locking mechanism (900), the control rope (940) bypasses a plurality of direction-changing pulleys (950) arranged in the turnover frame (200), two ends of the control rope (940) are connected with two ends of a pull rod (960) arranged on the turnover frame (200), the middle part of the pull rod (960) is hinged with the turnover frame (200), the pull rod (960) is also connected with a return spring (970), and the twist lock mechanism (900) can be lifted or put down by rotating the pull rod (960).

7. The automatic dusting container-turning spreader of claim 6;

an eyelet bolt (980) penetrates through the return spring (970), one end of the eyelet bolt (980) is hinged with the pull rod (960), and the other end of the eyelet bolt (980) is hinged with the overturning frame (200) in a sliding manner.

8. The automatic dusting container-turning spreader of claim 1 or 2;

the door opening mechanism (1000) comprises rotating arms (1010) which are arranged on the overturning frame (200) and correspond to two sides of the container door, the two rotating arms (1010) are connected with a rotating arm driving mechanism for driving the rotating arms (1010) to rotate, one rotating arm (1010) is connected with a door blocking rod (1020) which abuts against the container door, and the middle parts of the two rotating arms (1010) are provided with ejector rod oil cylinders (1030) for ejecting the container door; the end parts of the two rotating arms (1010) are also provided with inner tongs (1040) and outer tongs (1050), and the rotating arms (1010) are also provided with clamp oil cylinders (1060) of which the two ends are respectively hinged with the inner tongs (1040) and the outer tongs (1050).

9. The automatic dusting container-turning spreader of claim 8;

the rocking arm actuating mechanism is including being fixed in drive gear (1070), drive rack (1080) and rocking arm hydro-cylinder (1090) of rocking arm (1010) tip, drive gear (1070) and drive rack (1080) mesh mutually, drive rack (1080) tip is connected with the sliding plug rod end that is fixed in rocking arm hydro-cylinder (1090) on upset frame (200).

10. The automatic dusting container-turning spreader of claim 8;

the swing arm (1010) is provided with a conical sleeve, and the conical sleeve is movably matched with a conical column arranged at the upper end of the door blocking rod (1020).