Hoisting device and hoisting method for charging bucket

Abstract

The invention relates to the technical field of hoisting equipment, in particular to a charging bucket hoisting device and a hoisting method.The charging bucket hoisting device comprises a hoisting plate, an outer square barrel capable of moving up and down is installed at the upper end of the hoisting plate, telescopic clamping arms are arranged on the two sides of the lower end of the hoisting plate, and when the outer square barrel moves upwards, a structure that the two telescopic clamping arms move towards the inner side can be formed; clamping seats are arranged on the inner sides of the lower ends of the two telescopic clamping arms, two arc-shaped clamping plates are installed on each clamping seat, threaded rods capable of rotating are further installed on the clamping seats, and when the threaded rods rotate, a structure that the two arc-shaped clamping plates swing towards the outer side and turn over towards the inner side can be formed; the clamping angle can be automatically adjusted according to the diameter of the material barrel when the clamping plates are adjusted, the clamping plates can be better attached to the outer surface of the material barrel during clamping, the clamping effect is improved, and falling is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting equipment, and in particular to a hoisting device and a hoisting method for a material tank. Background Art

[0002] Lifting is a device or tool that lifts, moves, and positions heavy objects by lifting. It is commonly used in industries such as construction, manufacturing, and logistics, and is especially common in high-altitude operations or situations that are difficult to carry by traditional means. The lifting device can ensure the safe and efficient movement and positioning of heavy objects, reduce manpower consumption, and improve work efficiency. When transporting barrel-shaped objects, the existing lifting equipment usually has two clamps on both sides to clamp and fix the barrel-shaped objects before moving. The existing clamps are in a fixed state and cannot automatically change the clamping angle when adjusted according to the diameter of the barrel, resulting in an inability to fully fit during clamping, poor clamping effect, and a certain risk of falling off when encountering a barrel with a smooth outer surface. For this reason, a lifting device for a material tank is designed to solve the above-mentioned problems. Summary of the invention

[0003] The present invention aims at the problem that the existing clamping plates are in a fixed state and cannot automatically change the clamping angle, resulting in incomplete fit during clamping and poor clamping effect. The present invention provides a lifting device for a material tank, which can automatically adjust the clamping angle according to the diameter of the material tank when adjusting the clamping plates, and can better fit the outer surface of the material tank during clamping, thereby improving the clamping effect and preventing it from falling off, thereby effectively solving the problems mentioned in the above-mentioned background technology.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is: A lifting device for a material tank comprises a hanging plate, an outer square tube that can move up and down is installed on the upper end of the hanging plate, telescopic clamping arms are arranged on both sides of the lower end of the hanging plate, and when the outer square tube moves upward, a structure in which two telescopic clamping arms move inward is formed; a clamping seat is arranged on the inner side of the lower end of the two telescopic clamping arms, and two arc-shaped clamping plates are installed on the clamping seat, and a rotatable threaded rod is also installed on the clamping seat, and when the threaded rod rotates, a structure in which two arc-shaped clamping plates swing outward and flip inward is formed; The lower end of the hanging plate is slidably connected with cross plates on both sides, and the telescopic clamping arms are installed on the corresponding cross plates. The inner ends of the two cross plates are fixed with first sliding pins. Two crossed pry bars are hinged on the front and rear sides of the upper end of the hanging plate, and the upper ends of the two pry bars are hinged with pull rods respectively. The upper ends of the two pull rods are hinged on the front and rear end surfaces of the outer square tube respectively. An inner square rod is fixed on the middle part of the upper surface of the hanging plate, and the outer square tube is slidably connected to the outer surface of the inner square rod. The lower ends of the pry bars are provided with key grooves that match the first sliding pin.

[0005] The left and right sides of the upper end of the hanging plate are provided with a snap device, and the snap device includes an L-shaped clip. The lower sides of the left and right end surfaces of the outer square tube are fixedly connected with hanging plates matching the L-shaped clip. When the outer square tube moves downward, the snap device can be opened to move the L-shaped clip inward. When the outer square tube moves downward again, the snap device can be closed to move the L-shaped clip outward.

[0006] The buckle devices also include a track plate, two side plates are fixedly connected to the left and right sides of the upper surface of the hanging plate, the track plates are slidably connected to the inner walls of the two corresponding side plates, guide plates are fixedly connected to the front and rear sides of the inner end surface of the track plate, long oblique grooves are provided on the two guide plates, the L-shaped clamping plates are slidably connected to the upper surface of the hanging plate, and second sliding pins matching the long oblique grooves are fixedly connected to the front and rear end surfaces of the L-shaped clamping plates.

[0007] The left and right sides of the upper surface of the hanging plate are fixed with first springs that match the track plate, and the left and right sides of the upper surface of the hanging plate are also hinged with limit links, the upper ends of the limit links are fixed with cylinders, the inner walls of the cylinders are slidably connected with first live pins, the inner walls of the bottom ends of the cylinders are fixed with second springs, and the outer end surfaces of the track plates are provided with track grooves that match the first live pins, the track grooves include short vertical grooves, V-shaped grooves, long vertical grooves and first oblique grooves, when the first live pins are engaged with the long vertical grooves, the track plates can be locked in the top position, and when the first sliding pins are engaged with the V-shaped grooves, the track plates can be locked in the bottom position; the left and right end surfaces of the outer square cylinder are fixed with pressure rods that match the track plates.

[0008] The outer surface of the threaded rod is threadedly connected with a threaded seat that is slidably connected to the clamp seat, the upper end of the threaded seat is hinged with two short connecting rods, the inner wall of the clamp seat is fixed with a rebounder, the upper end of the outer surface of the rebounder is rotatably connected to two rocker rods, the short connecting rods are hinged on the corresponding rocker rods, and the arc-shaped clamps are installed on the corresponding rocker rods.

[0009] The rocker arms are all hinged with pry seats, the arc-shaped clamping plates are all fixedly connected to the corresponding pry seats, the inner walls of the rocker arms are all slidably connected with long connecting plates, the rocker arms are also all provided with first connecting rods, one end of the first connecting rod is hingedly connected to the corresponding long connecting plates, the other end of the first connecting rod is hingedly connected to the corresponding pry seats, the inner walls of the long connecting plates are all fixedly connected with second live pins, the outer surfaces of the rebounders are all fixedly connected with fan-shaped rail plates, and the fan-shaped rail plates are all provided with two sections of reducing grooves that cooperate with the second live pins.

[0010] The lower end of the rebounder is fixedly connected to the first support seat, the lower end of the first support seat is rotatably connected to the roller, the front and rear end surfaces of the clamp seat are slidably connected to the U-shaped plate, the front and rear end surfaces of the first support seat are fixedly connected to the connecting plate, the upper ends of the connecting plates are fixed to the corresponding U-shaped plates, the inner walls of the U-shaped plates are slidably connected to the L-shaped supporting plates, the inner ends of the two L-shaped supporting plates are fixedly connected to the fourth sliding pins, and the front and rear end surfaces of the clamp seat are provided with side rail grooves matching the fourth sliding pins.

[0011] The telescopic clamping arms include side clamping plates and inner clamping plates, the inner clamping plates are slidably connected to the inner walls of the side clamping plates, and the side clamping plates are slidably connected to the corresponding cross plates; the inner walls at the front and rear ends of the side clamping plates are slidably connected to a movable control plate, the upper sides of the inner end surfaces of the two control plates are fixedly connected to a driving plate, the inner walls of the upper ends of the side clamping plates are slidably connected to a first latch pin, the lower ends of the first latch pins are fixedly connected to a third sliding pin, the driving plates are provided with an oblique key groove matching the third sliding pin, and the lower end surface of the cross plate is provided with a plurality of first latch slots matching the first latch pin; the lower sides of the inner end surfaces of the two control plates are fixedly connected to a second latch pin, and the front and rear end surfaces of the inner clamping plates are provided with a plurality of second latch slots matching the second latch pin.

[0012] A method for hoisting a material tank hoisting device comprises the following steps: S1. The outer square tube is driven to make the hanging plate reach the specified position. When the outer square tube moves upward, the telescopic clamp arm and the arc clamp plate can be driven to move inward synchronously. After the arc clamp plate moves inward to contact the outer surface of the barrel, when the outer square tube continues to move upward, the arc clamp plate can clamp the barrel and lift the barrel to move upward with the outer square tube; S2. When the outer square tube, the hanging plate and the material barrel reach the next designated position, the outer square tube moves downward to place the material barrel on the ground. When the outer square tube continues to move downward, the arc-shaped clamping plate can be moved outward to open the arc-shaped clamping plate.

[0013] Compared with the prior art, the present invention has the following advantages: when the crane is working, it can drive the outer square cylinder to move up and down, and when the outer square cylinder moves upward, it can drive the corresponding two telescopic clamping arms and the arc-shaped clamping plate to move inward synchronously, and when the arc-shaped clamping plate moves inward to contact the barrel, the outer square cylinder continues to move upward, which can make the arc-shaped clamping plate have an inward clamping force, thereby clamping and fixing the barrel, and the arc-shaped clamping plate has an inward clamping force, which can clamp and fix the barrel, and after clamping and fixing the barrel, it can move upward synchronously with the outer square cylinder, so as to lift and transport the barrel to the designated position. When the position of the arc clamping plate needs to be adjusted according to the diameter of the barrel, the two arc clamping plates can be swung outward by driving the threaded rod to rotate. When the arc clamping plates move outward, they will flip inward, which can change the angle of the arc clamping plates. Even when the arc clamping plates clamp inward again, the clamping force is always toward the center of the barrel, so that the barrel is subjected to more uniform force, the clamping is more close and stable, and the clamping effect is improved. By arranging an arc clamping plate that can swing outward and flip inward at the same time, the arc clamping plate can complete the clamping, fixing and transportation work for barrels of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a first axonometric view of a lifting device for a material tank according to the present invention.

[0015] Figure 2 This is a second axonometric view of a lifting device for a material tank according to the present invention.

[0016] Figure 3 The present invention is a schematic diagram of the installation of a pry bar of a material tank lifting device.

[0017] Figure 4 The present invention is a cross-sectional view of a hanging plate of a material tank hanging device.

[0018] Figure 5 The present invention is a schematic diagram of the installation of a pressure rod of a material tank lifting device.

[0019] Figure 6 The present invention is a schematic diagram of the installation of a guide plate of a material tank lifting device.

[0020] Figure 7 A schematic diagram of the installation of a track plate of a material tank lifting device of the present invention.

[0021] Figure 8 The present invention is a schematic diagram of a track groove structure of a material tank lifting device.

[0022] Fig. 9 The present invention is a schematic diagram of the first wedge-shaped block structure of a material tank lifting device.

[0023] Fig.10 The present invention is a schematic diagram of the installation of a side clamping plate of a material tank lifting device.

[0024] Fig.11 The present invention is a cross-sectional view of a side clamping plate of a material tank lifting device.

[0025] Fig.12 It is a schematic diagram of the installation of a worm gear of a lifting device for a material tank of the present invention.

[0026] Fig.13 The present invention is a schematic diagram of the installation of a clamping base of a lifting device for a material tank.

[0027] Fig.14 This is a schematic diagram of the installation of the fourth sliding pin of a material tank lifting device of the present invention.

[0028] Fig.15 The present invention is a schematic diagram of the installation of a swing arm of a material tank lifting device.

[0029] Numbers in the figure: 1-hanging plate, 2-buffer pad, 3-pry bar, 4-pull rod, 5-key groove, 6-first sliding pin, 7-cross plate, 8-outer square tube, 9-inner square rod, 10-hanging ring, 11-pressure rod, 12-hanging plate, 13-side plate, 14-track plate, 15-guide plate, 16-long inclined groove, 17-second sliding pin, 18-L-shaped card plate, 19-first spring, 20-limiting connecting rod, 21-cylinder, 22-second spring, 23-first movable pin, 24-long vertical groove, 25-first inclined groove, 26-short vertical groove, 27-V-shaped groove, 28-first wedge block, 29-second wedge block, 30-third wedge block, 31-side clamping plate, 32-inner clamping plate, 33-pull ring, 34-control plate, 35-short guide rod, 36-third spring, 37-drive plate, 38-third slide pin, 39-oblique key slot, 40-first bayonet, 41-second bayonet, 42-first slot, 43-second slot, 44-first handle, 45-worm, 46-worm wheel, 47-clamp seat, 48-rebounder, 49-roller, 50-first support seat, 51-connecting plate, 52-U-shaped plate, 53-L-shaped support plate, 54-fourth slide pin, 55-side rail groove, 56-crank handle, 57-threaded rod, 58-threaded seat, 59-short connecting rod, 60-rocker, 61-long connecting plate, 62-first connecting rod, 63-pry seat, 64-second movable pin, 65-sector rail plate, 66-diameter reducing groove, 67-arc splint. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0031] like Figure 1-Figure 15 As shown, the present invention provides a lifting device for a material tank, including a hanging plate 1, an outer square tube 8 that can move up and down is installed on the upper end of the hanging plate 1, and telescopic clamping arms are provided on both sides of the lower end of the hanging plate 1. When the outer square tube 8 moves upward, a structure in which two telescopic clamping arms move inward is formed; a clamping seat 47 is provided on the inner side of the lower end of the two telescopic clamping arms, and two arc-shaped clamping plates 67 are installed on the clamping seat 47, and a rotatable threaded rod 57 is also installed on the clamping seat 47. When the threaded rod 57 rotates, a structure in which the two arc-shaped clamping plates 67 swing outward and flip inward is formed.

[0032] like Figure 1-Figure 12As shown, the hanging plate 1 is used to install the whole device. A hanging ring 10 is provided at the upper end of the outer square tube 8. The hanging ring 10 is used to connect the crane. When the crane is working, it can drive the outer square tube 8 to move up and down. When the outer square tube 8 moves upward, it can drive the corresponding two telescopic clamping arms and the arc clamping plate 67 to move inward synchronously. When the arc clamping plate 67 moves inward to contact the barrel, the outer square tube 8 continues to move upward, which can make the arc clamping plate 67 have an inward clamping force, thereby clamping and fixing the barrel. After clamping and fixing the barrel, it can move upward synchronously with the outer square tube 8, thereby moving and transporting the barrel to a specified position; the clamping seat 47 is used to support the installation of the arc clamping plate 67, the threaded rod 57, etc. Parts, the arc-shaped clamping plate 67 is used to clamp and fix the barrel. When the position of the arc-shaped clamping plate 67 needs to be adjusted according to the diameter of the barrel, the two arc-shaped clamping plates 67 can be swung outward by driving the threaded rod 57 to rotate. When the arc-shaped clamping plate 67 moves outward, it will flip inward, which can change the angle of the arc-shaped clamping plate 67. Even when the arc-shaped clamping plate 67 clamps inward again, the clamping force is always toward the center of the barrel, so that the barrel is subjected to more uniform force, the clamping is more close and stable, thereby improving the clamping effect. By setting the arc-shaped clamping plate 67 that can swing outward and flip inward at the same time, the arc-shaped clamping plate 67 can complete the clamping, fixing and transportation work for barrels of different diameters.

[0033] The lower end of the hanging plate 1 is slidably connected with cross plates 7 on both sides, and the telescopic clamping arms are installed on the corresponding cross plates 7. The inner ends of the two cross plates 7 are fixedly connected with first sliding pins 6. The front and rear sides of the upper end of the hanging plate 1 are respectively hinged with two crossed pry bars 3, and the upper ends of the two pry bars 3 are respectively hinged with pull rods 4. The upper ends of the two pull rods 4 are respectively hinged on the front and rear end surfaces of the outer square tube 8. An inner square rod 9 is fixedly connected to the middle part of the upper end surface of the hanging plate 1, and the outer square tube 8 is slidably connected to the outer surface of the inner square rod 9. The lower ends of the pry bars 3 are provided with key grooves 5 that match the first sliding pin 6.

[0034] like Figure 3 and Figure 4 As shown, the outer square tube 8 can slide up and down on the surface of the inner square rod 9. The inner square rod 9 is set to limit the outer square tube 8 to move up and down only on the upper end of the hanging plate 1; the cross plate 7 can slide left and right on the inner wall of the hanging plate 1. When the hanging plate 1 moves left and right, it can drive the telescopic clamping arm and the arc clamping plate 67 to move left and right; the installation and shape of the pry bar 3, the pull rod 4, the first sliding pin 6, and the key groove 5 are as shown in FIG. Figure 3As shown, when the outer square tube 8 moves upward, it can drive the upper end of the pull rod 4 to move upward, and the upper end of the pull rod 4 will drive the pry bar 3 to flip upward. The lower ends of the two pry bars 3 can drive the cross plate 7 to move inward under the cooperation of the key groove 5 and the first sliding pin 6, that is, the corresponding telescopic clamping arm and the arc clamping plate 67 move inward, and the barrel can be clamped and fixed. After the outer square tube 8 continues to move upward after clamping the barrel, the arc clamping plate 67 can clamp the barrel and move upward synchronously, thereby driving the barrel to the specified position; the lower end surface of the hanging plate 1 is fixed with a buffer pad 2 The buffer pad 2 can reduce the impact between the hanging plate 1 and the barrel, thereby protecting the device; after the barrel reaches the specified position, when the outer square tube 8 moves downward, the barrel can be placed on the ground, and when the outer square tube 8 continues to move downward, the hanging plate 1 can move downward and contact the upper end of the barrel. Under the support and blocking of the barrel, the hanging plate 1 can be restricted from continuing to move downward. At this time, when the outer square tube 8 continues to move downward, it will drive the two corresponding cross plates 7, the telescopic clamping arms, and the arc-shaped clamping plates 67 to move outward. The arc-shaped clamping plates 67 can move outward to move away from the barrel and are no longer clamped and fixed.

[0035] The left and right sides of the upper end of the hanging plate 1 are provided with snap-fit ​​devices, and the snap-fit ​​devices include an L-shaped snap plate 18. The lower sides of the left and right end surfaces of the outer square tube 8 are fixedly connected with hanging plates 12 that match the L-shaped snap plate 18. When the outer square tube 8 moves downward, the snap-fit ​​device can be opened to move the L-shaped snap plate 18 inward. When the outer square tube 8 moves downward again, the snap-fit ​​device can be closed to move the L-shaped snap plate 18 outward.

[0036] like Figure 5-Figure 7When the outer square tube 8 moves downward, the locking device can be opened and the L-shaped clamping plate 18 can be moved inward. When the L-shaped clamping plate 18 moves inward, the L-shaped clamping plate 18 can block the hanging plate 12 and the outer square tube 8. That is, at this time, the outer square tube 8 is in the lower end position of the hanging plate 1, and the two telescopic clamping arms and the arc clamping plate 67 are in the outermost open state. When the outer square tube 8 moves upward, the hanging plate 1, the telescopic clamping arm, the arc clamping plate 67, etc. can be driven to move upward synchronously, so that the arc clamping plate 67 is completely separated from the barrel; when reaching the upper end position of the next barrel to be hoisted, the hanging plate 1 is placed on the upper end of the barrel again by driving the outer square tube 8. At this time, the hanging plate 1 no longer moves downward under the obstruction of the barrel, and when the outer square tube 8 continues to move downward, the locking device can be driven to close and the L-shaped clamping plate 18 moves outward to open. At this time, the L-shaped clamping plate 18 is no longer When the outer square tube 8 moves downward again, the snap device can be closed, and at this time, when the outer square tube 8 moves upward, the arc clamping plate 67 can be driven to move inward, clamp the barrel and lift it upward, and the barrel can be lifted again, which can be cyclically used.

[0037] The buckle devices also include a track plate 14, and two side plates 13 are fixedly connected to the left and right sides of the upper end surface of the hanging plate 1. The track plates 14 are slidably connected to the inner walls of the two corresponding side plates 13. Guide plates 15 are fixedly connected to the front and rear sides of the inner end surface of the track plate 14. Long inclined grooves 16 are provided on the two guide plates 15. The L-shaped card plates 18 are slidably connected to the upper end surface of the hanging plate 1, and the front and rear end surfaces of the L-shaped card plates 18 are fixedly connected to the second sliding pins 17 that match the long inclined grooves 16.

[0038] like Figure 5-Figure 7As shown, the L-shaped card plate 18 can slide left and right on the upper end surface of the hanging plate 1, and the track plate 14 can slide up and down on the inner wall of the side plate 13, and the side plate 13 can limit and support the track plate 14 to only move up and down; through the cooperation of the set guide plate 15, the long inclined groove 16 and the second sliding pin 17, when the track plate 14 moves up and down, the guide plate 15 can be driven to move up and down, and when the guide plate 15 moves up and down, it can drive the L-shaped card plate 18 to move left and right, that is, move inward or outward through the engagement with the second sliding pin 17. When the two L-shaped card plates 18 move inward, they can block the hanging plate 12 from moving upward. When the two L-shaped card plates 18 move outward, they can be misaligned with the hanging plate 12, that is, they no longer block the hanging plate 12 from moving upward.

[0039] The left and right sides of the upper end surface of the hanger plate 1 are fixed with first springs 19 that match the track plate 14. The left and right sides of the upper end surface of the hanger plate 1 are also hinged with limit connecting rods 20. The upper ends of the limit connecting rods 20 are fixed with cylinders 21. The inner walls of the cylinders 21 are slidably connected with first live pins 23. The inner walls of the bottom ends of the cylinders 21 are fixed with second springs 22. The outer end surfaces of the track plate 14 are provided with track grooves that match the first live pins 23. The track grooves include short vertical grooves 26, V-shaped grooves 27, long vertical grooves 24 and first inclined grooves 25. When the first live pin 23 is engaged with the long vertical grooves 24, the track plate 14 can be locked in the top position. When the first sliding pin 6 is engaged with the V-shaped grooves 27, the track plate 14 can be locked in the bottom position. The left and right end surfaces of the outer square tube 8 are fixed with pressure rods 11 that match the track plate 14.

[0040] like Figure 7-Figure 9 As shown, the first spring 19 always has an upward thrust on the track plate 14, so that the track plate 14 can be in the top position under normal conditions; the first movable pin 23 can be slidably connected to the inner wall of the cylinder 21, and the second spring 22 always has an inward thrust on the first movable pin 23, so that the first movable pin 23 can be in a pop-up state under normal conditions. Even if the first movable pin 23 can be engaged with the track groove under normal conditions, the limit connecting rod 20 can limit the support of the first movable pin 23 to move forward and backward only within a specified height; the setting of the track groove is as shown in FIG. Figure 7 or Figure 8As shown, the inner wall of the bottom end of the track groove is respectively fixed with a first wedge block 28, a second wedge block 29 and a third wedge block 30, the first wedge block 28 is installed at the connection between the long vertical groove 24 and the first inclined groove 25, the second wedge block 29 is arranged at the connection between the short vertical groove 26 and the V-shaped groove 27, and the third wedge block 30 is arranged at the connection between the V-shaped groove 27 and the long vertical groove 24. The first wedge block 28, the second wedge block 29 and the third wedge block 30 are all provided with an inclined surface at one end and a straight surface at the other end. Through the cooperation of the inclined surface, the straight surface and the first movable pin 23, the first movable pin 23 can be moved along the specified path. When the outer square tube 8 moves from top to bottom, the outer square tube 8 and the pressure rod 11 move downward to squeeze the track plate 14 to move downward. At this time, the track plate 14 moves downward from The top moves downward, and the first live pin 23 is located at the inner wall of the lower end of the long vertical groove 24. The downward movement of the track plate 14 can make the first live pin 23 slide on the inner wall of the long vertical groove 24. When the track plate 14 moves downward until the first wedge block 28 meets the first live pin 23, the first live pin 23 can slide to the inner wall of the first inclined groove 25 under the obstruction of the first wedge block 28, that is, the first live pin 23 enters the inner wall of the first inclined groove 25. When the track plate 14 continues to move downward, the first live pin 23 can enter the inner wall of the short vertical groove 26 from the inner wall of the first inclined groove 25. When the track plate 14 continues to move downward to the bottom, the first live pin 23 can slide to the top position of the short vertical groove 26, that is, enter the inner wall of the V-shaped groove 27, and the first live pin 23 meets the second wedge block 29. When the first movable pin 23 is completely in the inner wall of the V-shaped groove 27 and is out of contact with the second wedge block 29, the first movable pin 23 can be moved out to the inner wall of the cylinder 21 under the elastic force of the second spring 22, that is, the first movable pin 23 can contact the inner wall of the bottom end of the track groove again. When the outer square cylinder 8 and the pressure rod 11 move upward and no longer squeeze the track plate 14, the track plate 14 can move upward under the elastic force of the first spring 19. When the track plate 14 moves upward from the bottom, the first movable pin 23 is engaged with the V-shaped groove 27 and blocked by the direct surface of the second wedge block 29, and the first sliding pin 6 can slide into the V-shaped groove 27. The bottom position, and blocks the track plate 14 from moving upward. At this time, the track plate 14 is in the bottom position locked state, that is, the corresponding two L-shaped card plates 18 can be at the innermost end, blocking the hanging plate 12 from moving upward. At this time, when the outer square tube 8, the hanging plate 12, etc. continue to move upward, they can drive the L-shaped card plate 18, the hanging plate 1, etc. to move upward synchronously, and the corresponding telescopic clamping arm and the arc clamping plate 67 are in the outermost open state. After the device moves to the specified position, that is, moves to place the hanging plate 1 on the upper end surface of the barrel, the outer square tube 8, the pressure rod 11, etc. continue to move downward, and the pressure rod 11 can squeeze the track plate 14 downward again. When the track plate 14 continues to move downward, the first live pin 23 can slide from the inner wall of the V-shaped groove 27 to the inner wall of the long vertical groove 24.When the first live pin 23 meets the third wedge block 30, the first live pin 23 can be squeezed into the inner wall of the cylinder 21 again under the action of the inclined surface of the third wedge block 30. When the first live pin 23 completely enters the inner wall of the long vertical groove 24, it can be disengaged from the third wedge block 30. At this time, the first live pin 23 can be moved out of the cylinder 21 again under the elastic force of the second spring 22 and contact the inner wall of the bottom end of the track groove again. When the outer square tube 8, the pressure rod 11, etc. move upward, the corresponding track plate 14 will move upward and reset under the elastic force of the first spring 19. At this time, the first live pin 23 will slide on the inner wall of the long vertical groove 24 and slide to the bottom end position of the long vertical groove 24. At this time, the track plate 14 is locked in the topmost position, and the corresponding two L-shaped clamping plates 18 are in the outermost end position, no longer blocking the hanging plate 12 from moving upward, that is, at this time, the outer square tube 8 can continue to move upward to make the two telescopic clamping arms and the arc clamping plate 67 move inward to clamp and close. , the barrel is clamped and lifted upward; the first wedge block 28 is provided, so that the first live pin 23 can enter the inner wall of the first inclined groove 25 from the inner wall of the long vertical groove 24, and the second wedge block 29 is provided, so that the first live pin 23 can enter the inner wall of the V-shaped groove 27 from the inner wall of the short vertical groove 26. The first live pin 23 can be prevented from entering the inner wall of the short vertical groove 26 from the inner wall of the V-shaped groove 27 under the direct blocking of the second wedge block 29, and the third wedge block 30 is provided, The first movable pin 23 can enter the inner wall of the long vertical groove 24 from the inner wall of the V-shaped groove 27, so that the first movable pin 23 can only move in the order of the long vertical groove 24, the first inclined groove 25, the short vertical groove 26, and the V-shaped groove 27; that is, when the track groove and the first movable pin 23 are engaged, the track plate 14 can be locked at the bottom or top position, that is, the corresponding L-shaped clamping plate 18 is at the innermost end or the outermost end, and the buckle device is in a stable open or closed state.

[0041] The outer surface of the threaded rod 57 is threadedly connected with a threaded seat 58 which is slidably connected to the clamp seat 47. Two short connecting rods 59 are hinged on the upper end of the threaded seat 58. The inner wall of the clamp seat 47 is fixed with a rebounder 48. The upper end of the outer surface of the rebounder 48 is rotatably connected to two rocker rods 60. The short connecting rods 59 are hinged on the corresponding rocker rods 60. The arc-shaped clamping plates 67 are installed on the corresponding rocker rods 60.

[0042] like Fig.12 and Fig.15As shown, two bearing seats are rotatably connected to the outer surface of the threaded rod 57, and the bottom ends of the bearing seats are fixedly connected to the upper end surface of the clamp seat 47. The limiting threaded rod 57 can only rotate on the clamp seat 47, and a first handle 44 is fixedly connected to one side end surface of the threaded rod 57. The function of the first handle 44 is to facilitate driving the threaded rod 57 to rotate; the threaded seat 58 can be slidably connected to the inner wall of the clamp seat 47 left and right. When the threaded rod 57 rotates, the threaded seat 58 can be driven to move left or right, that is, the two threaded seats 58 move inward or outward, and the threaded connection between the threaded rod 57 and the threaded seat 58 has a self-locking function, that is, when the threaded rod 57 does not rotate, the corresponding threaded seat 58 is in a fixed state, and the inner ends of the short connecting rods 59 are hinged to the upper ends of the threaded seats 58. The outer ends of the short connecting rods 59 are hinged on the swing rods 60, and the swing rods 60 are rotatably connected to the outer surface of the rebounder 48, so that the swing rods 60 can swing left and right, that is, the two swing rods 60 can swing inward or outward; when the first handle 44 is driven, the threaded rod 57 can be driven to rotate, and when the threaded rod 57 rotates, the threaded seat 58 can be driven to move inward or outward. When the threaded seat 58 moves inward or outward, through the hinge connection between the short connecting rod 59 and the swing rod 60, the two swing rods 60 can be driven to move outward to open or inward to close. When the two swing rods 60 move synchronously outward or inward, the arc clamping plate 67 can be driven to move inward or outward, thereby adjusting the specific position of the arc clamping plate 67 according to the diameter of the barrel.

[0043] The swing rod 60 is hinged with a pry seat 63, and the arc-shaped clamping plate 67 is fixedly connected to the corresponding pry seat 63. The inner wall of the swing rod 60 is slidably connected with a long connecting plate 61. The swing rod 60 is also provided with a first connecting rod 62, one end of the first connecting rod 62 is hinged to the corresponding long connecting plate 61, and the other end of the first connecting rod 62 is hinged to the corresponding pry seat 63. The inner wall of the long connecting plate 61 is fixedly connected with a second movable pin 64, and the outer surface of the rebounder 48 is fixedly connected with a fan-shaped rail plate 65, and the fan-shaped rail plate 65 is provided with two sections of reducing grooves 66 that cooperate with the second movable pin 64.

[0044] like Fig.15As shown, the long connecting plate 61 can slide left and right on the inner wall of the swing rod 60. Through the hinge connection of the pry seat 63 and the first connecting rod 62, when the long connecting plate 61 moves left and right, the pry seat 63 can be driven to swing inward or outward, that is, the corresponding arc-shaped clamping plate 67 swings inward or flips outward. When the arc-shaped clamping plate 67 flips inward or outward, the direction of the arc-shaped clamping plate 67 can be changed. When the swing rod 60 swings left and right, the corresponding long connecting plate 61, the pry seat 63, and the arc-shaped clamping plate 67 can be driven to swing outward or inward synchronously. When the long connecting plate 61, the second live pin 64, etc. follow the swing of the swing rod 60, When the second movable pin 64 is in motion, the engagement with the reducing groove 66 will make the second movable pin 64 and the long connecting plate 61 slide left and right on the inner wall of the rocker arm 60, and when the second movable pin 64 and the long connecting plate 61 slide left and right, they can drive the arc clamping plate 67 to flip inward or outward, that is, the arc clamping plate 67 can flip inward when swinging outward, or flip outward when swinging inward; that is, the direction of the arc clamping plate 67 changes automatically when adjusting according to the diameter of the barrel, so that it can fit more closely to the outer surface of the barrel when clamping, so that the clamping is more stable and reliable.

[0045] The lower end of the rebounder 48 is fixedly connected to the first support seat 50, and the lower end of the first support seat 50 is rotatably connected to the roller 49. The front and rear end surfaces of the clamp seat 47 are slidably connected to the U-shaped plate 52. The front and rear end surfaces of the first support seat 50 are fixedly connected to the connecting plates 51. The upper ends of the connecting plates 51 are fixedly connected to the corresponding U-shaped plates 52. The inner walls of the U-shaped plates 52 are slidably connected to L-shaped support plates 53. The inner ends of the two L-shaped support plates 53 are fixedly connected to the fourth sliding pins 54. The front and rear end surfaces of the clamp seat 47 are provided with side rail grooves 55 that match the fourth sliding pins 54.

[0046] like Fig.13 and Fig.14As shown, the rebounder 48 is similar to a telescopic rod, which can make the first support seat 50 and the roller 49 move up and down. The roller 49 can reduce the friction with the ground and can be locked when it is at the topmost position or the bottommost position, which is similar to the ballpoint pen mechanism. The rebounder 48 is a prior art and will not be described in detail. The U-shaped plate 52 can be slidably connected to the inner walls of the front and rear ends of the clamp seat 47 up and down, and the L-shaped support plate 53 can be slidably connected to the inner wall of the U-shaped plate 52 left and right. When the U-shaped plate 52 slides upward on the clamp seat 47, it can drive the corresponding L-shaped support plate 53 to move upward. When the L-shaped support plate 53 moves upward, the second live pin 64 is engaged with the side rail groove 55, so that the second live pin 64 and the L-shaped support plate 53 can be connected to the inner wall of the U-shaped plate 52 left and right. The L-shaped support plate 53 moves upward and outward at the same time. When moving outward, the L-shaped support plate 53 can be away from the barrel. When the device unloads the barrel, the L-shaped support plate 53 no longer blocks the barrel. When the U-shaped plate 52 moves downward, it can drive the L-shaped support plate 53 and the second movable pin 64 to move downward. When the second movable pin 64 moves downward, it will engage with the side rail groove 55, which will cause the second movable pin 64 and the L-shaped support plate 53 to move downward and inward at the same time. When the L-shaped support plate 53 moves inward to the top end, it can move to the lower end position of the barrel. When hoisting, the L-shaped support plate 53 can prevent the barrel from moving downward and falling off. The L-shaped support plate 53 can be further protected to prevent the barrel from falling off during hoisting. After the device lifts the material barrel to the specified position, the device can make the roller 49 contact the ground first when it moves downward. When the roller 49 continues to move downward after contacting the ground, the first support seat 50 and the connecting plate 51 can push the U-shaped plate 52 to slide upward on the inner wall of the clamp seat 47, and the rebounder 48 contracts. When the U-shaped plate 52 moves upward, it can drive the L-shaped support plate 53 to move upward and outward at the same time, that is, the L-shaped support plate 53 is away from the material barrel. When the material barrel moves downward to contact and be placed on the ground, the rebounder 48 contracts to the shortest state and is in a locked position, that is, the corresponding L-shaped support plate 53 can be in a stable state at the outermost end. When the outer square tube 8 continues to move downward, due to The hanging plate 1 has already touched the barrel, and under the obstruction of the barrel, the hanging plate 1 no longer moves downward, and at this time, the arc-shaped clamping plate 67, the telescopic clamping arm, the clamping seat 47, etc. can be synchronously moved outward, that is, the arc-shaped clamping plate 67 no longer touches the barrel, and the corresponding roller 49 contacts the ground and can move outward. When the outer square tube 8 moves downward to the bottom position, that is, the corresponding arc-shaped clamping plate 67 moves to the outermost end, and the snap-fit ​​device opens to make the two L-shaped clamping plates 18 at the innermost end, at this time, when the outer square tube 8 continues to move upward, the hanging plate 12 can drive the L-shaped clamping plate 18, the hanging plate 1, etc. to move upward synchronously. At this time, the arc-shaped clamping plate 67 is in an open state, and the rebounder 48 is in a retracted state, that is, the corresponding L-shaped support plate 53 is at the outer end;When the outer square tube 8 continues to move to the upper end position of the next bucket to be hoisted, the outer square tube 8 continues to move downward to the bottom end, that is, the roller 49 contacts the ground, the hanging plate 1 contacts the upper surface of the bucket, and the outer square tube 8 continues to move downward to close the buckle device. When the outer square tube 8 moves upward, it can drive the telescopic clamping arm, the arc clamping plate 67, etc. to move inward synchronously, so that the arc clamping plate 67 clamps the bucket and fixes it. When the outer square tube 8 continues to move upward, the arc clamping plate 67 can clamp the bucket and lift it upward. At this time, the rebounder 48 can be squeezed again and pop out downward. When the outer square tube 8, the arc clamping plate 67, the bucket, etc. continue to move upward and break away from the contact with the ground, the rebounder 48 can drive the L-shaped support plate 53 to move to the inner side of the lower end when it pops out downward, so that the L-shaped support plate 53 moves to the lower end position of the bucket again. After the rebounder 48 pops out, it can make the L-shaped support plate 53 be at the innermost designated position. At this time, the L-shaped support plate 53 can protect the bucket from falling off. ;

[0047] The telescopic clamping arms each include a side clamping plate 31 and an inner clamping plate 32, the inner clamping plate 32 is slidably connected to the inner wall of the side clamping plate 31, and the side clamping plates 31 are slidably connected to the corresponding cross plate 7; the inner walls at the front and rear ends of the side clamping plates 31 are slidably connected to a movable control plate 34, the upper sides of the inner end surfaces of the two control plates 34 are fixedly connected to a driving plate 37, the inner walls of the upper ends of the side clamping plates 31 are slidably connected to a first bayonet 40, the lower ends of the first bayonet 40 are fixedly connected to a third sliding pin 38, the driving plates 37 are provided with an oblique key groove 39 that matches the third sliding pin 38, and the lower end surface of the cross plate 7 is provided with a plurality of first bayonet grooves 42 that match the first bayonet pin 40; the lower sides of the inner end surfaces of the two control plates 34 are fixedly connected to a second bayonet pin 41, and the front and rear end surfaces of the inner clamping plates 32 are provided with a plurality of second bayonet grooves 43 that match the second bayonet pin 41.

[0048] like Fig.10 and Fig.11As shown, the clamp seat 47 is installed at the lower end of the corresponding inner clamp plate 32, and the inner clamp plate 32 can slide up and down on the inner wall of the side clamp plate 31, so that the telescopic clamp arm can be extended and retracted up and down, and the length of the telescopic clamp arm can be adjusted according to the height of the clamped barrel; the side clamp plate 31 can be slidably connected to the inner wall of the cross plate 7 left and right, so that the telescopic clamp arm and the arc clamp plate 67 can move left and right, and the initial position of the telescopic clamp arm and the arc clamp plate 67 can be adjusted according to the diameter of the barrel. Through the set telescopic clamp arm, it can adapt to clamping barrels of different diameters; short guide rods 35 are fixedly connected to the upper and lower sides of the front and rear end surfaces of the side clamp plate 31, and the control plate 34 is slidably connected to the outer surfaces of the two short guide rods 35. The short guide rods 35 set can limit the control plate 34 to only move forward and backward The third spring 36 is also sleeved on the outer surface of the short guide rod 35. The third spring 36 always has an inward driving force on the control plate 34, so that the control plate 34 is in the innermost end position under normal conditions; the upper side of the outer end surface of the two control plates 34 is fixedly connected with a pull ring 33, the pull ring 33 passes through the front and rear end surfaces of the side clamping plate 31 and is slidably connected to the inner wall of the side clamping plate 31. When the two pull rings 33 are driven to move outward, the two control plates 34 can be driven to move outward and the third spring 36 is compressed; the first bayonet 40 can be slidably connected to the inner wall of the side clamping plate 31 up and down. When the two control plates 34 move outward, the two drive plates 37 can be driven to move outward. When the drive plates 37 move outward, they pass through the oblique key slot 39 When the third sliding pin 38 is engaged, the third sliding pin 38 and the first latch pin 40 can be driven to move downward. When the first latch pin 40 moves downward and disengages from the latch slot, the side clamping plate 31 and the telescopic clamping arm can slide left and right on the lower end surface of the cross plate 7. When the first latch pin 40 is engaged with the first latch slot 42 again, the telescopic clamping arm can be restricted from moving left and right. When the control plate 34 moves outward, the second latch pin 41 can be driven to move outward. When the second latch pin 41 moves outward and disengages from the second latch slot 43, the inner clamping plate 32 can slide up and down on the inner wall of the side clamping plate 31, that is, the height of the telescopic clamping arm can be adjusted. When the two pull rings 33 are driven to move outward, the control plate 34 can be driven to move outward, that is, the first latch pin 40 is engaged with the first latch slot 42 again. The pin 40 moves downward and disengages from the first slot 42, and the second pin 41 moves outward and disengages from the second slot 43. At this time, the left and right position and length of the telescopic clamping arm can be adjusted, and the telescopic clamping arm can be quickly adjusted. When the pull ring 33 is released, the control plate 34 can move inward and reset under the elastic force of the third spring 36, that is, the corresponding first pin 40 moves upward and engages with the first slot 42 again, and the second pin 41 moves inward and engages with the second slot 43 again, thereby fixing the length and left and right position of the telescopic clamping arm again; the outer side of the lower end of the inner clamping plate 32 is rotatably connected to a worm 45, and the lower end of the worm 45 is meshed with a worm wheel 46, and the clamping seat 47 is coaxially fixed to the corresponding worm wheel 46, such as Fig.12As shown, the front and rear ends of the outer surface of the worm 45 are fixedly connected to crank handles 56, which are arranged to facilitate driving the worm 45 to rotate. The worm wheel 46 and the inner wall of the clamp seat 47 are fixedly connected with a rotating shaft, which is rotatably connected to the inner clamp plate 32. When the driving crank handle 56 is rotated, the worm 45 can be driven to rotate. When the worm 45 rotates, the worm wheel 46 and the clamp seat 47 can be driven to rotate through the engagement with the worm wheel 46. When the clamp seat 47 and the arc clamp plate 67 clamp the material barrel, the rotation of the clamp seat 47 can drive the material barrel to flip. The flipping of the material barrel can pour out the material at a specified position, and the engagement of the worm wheel 46 and the worm 45 also has a self-locking function, that is, when the worm 45 does not rotate, the corresponding worm wheel 46 and the clamp seat 47 are in a fixed state, that is, the position of the arc clamp plate 67 is in a fixed state and will not rotate or move, so that the material barrel can be stably clamped. The clamp seat 47 can also be selected to be fixed to the inner clamp plate 32, and an adaptive setting can be made according to specific needs.

[0049] A method for hoisting a material tank hoisting device comprises the following steps: S1, by driving the outer square tube 8 to make the hanging plate 1 reach the specified position, when the outer square tube 8 moves upward, it can drive the telescopic clamping arm and the arc clamping plate 67 to move inward synchronously, after the arc clamping plate 67 moves inward to contact the outer surface of the barrel, when the outer square tube 8 continues to move upward, the arc clamping plate 67 can clamp and fix the barrel and lift the barrel to follow the outer square tube 8 to move upward; S2. When the outer square tube 8, the hanging plate 1 and the bucket reach the next designated position, the outer square tube 8 moves downward to place the bucket on the ground. When the outer square tube 8 continues to move downward, the arc-shaped clamping plate 67 can move outward and be in an open state.

[0050] When the present invention is in use, when the crane is working, it can drive the outer square tube 8 to move up and down. When the outer square tube 8 moves upward, it can drive the corresponding two telescopic clamping arms and the arc clamping plate 67 to move inward synchronously. When the arc clamping plate 67 moves inward to contact the barrel, the outer square tube 8 continues to move upward, which can make the arc clamping plate 67 have an inward clamping force, thereby clamping and fixing the barrel. The arc clamping plate 67 has an inward clamping force, which can clamp and fix the barrel. After clamping and fixing the barrel, it can move upward synchronously with the outer square tube 8, thereby lifting and transporting the barrel to a specified position. When it is necessary to When the diameter of the barrel is adjusted to the position of the arc clamping plate 67, the threaded rod 57 is driven to rotate, so that the two arc clamping plates 67 can swing outward. When the arc clamping plate 67 moves outward, it will flip inward, which can change the angle of the arc clamping plate 67. Even when the arc clamping plate 67 clamps inward again, the clamping force is always toward the center of the barrel, so that the barrel is subjected to more uniform force, the clamping is more close and stable, thereby improving the clamping effect. By setting up an arc clamping plate 67 that can swing outward and flip inward at the same time, the arc clamping plate 67 can complete the clamping, fixing and transportation work for barrels of different diameters.

Claims

1. A tank lifting device, comprising a lifting plate (1), characterized in that: An outer square tube (8) capable of moving up and down is mounted on the upper end of the hanging plate (1); telescopic clamping arms are mounted on both sides of the lower end of the hanging plate (1); when the outer square tube (8) moves upward, a structure is formed in which the two telescopic clamping arms move inward; a clamping seat (47) is mounted on the inner side of the lower end of the two telescopic clamping arms; two arc-shaped clamping plates (67) are mounted on the clamping seat (47); a rotatable threaded rod (57) is also mounted on the clamping seat (47); when the threaded rod (57) rotates, a structure is formed in which the two arc-shaped clamping plates (67) swing outward and flip inward; Both sides of the lower end of the hanging plate (1) are slidably connected to transverse plates (7), the telescopic clamping arms are installed on the corresponding transverse plates (7), the inner ends of the two transverse plates (7) are fixedly connected to first sliding pins (6), the front and rear sides of the upper end of the hanging plate (1) are respectively hinged to two crossed pry bars (3), the upper ends of the two pry bars (3) are respectively hinged to pull rods (4), the upper ends of the two pull rods (4) are respectively hinged to the front and rear end surfaces of the outer square tube (8), the middle part of the upper end surface of the hanging plate (1) is fixedly connected to an inner square rod (9), the outer square tube (8) is slidably connected to the outer surface of the inner square rod (9), and the lower ends of the pry bars (3) are provided with key grooves (5) matching with the first sliding pins (6).

2. A tank hoisting device according to claim 1, characterized in that: The upper left and right sides of the hanging plate (1) are provided with snap-fit ​​devices, each of which includes an L-shaped snap-fit ​​plate (18). The lower sides of the left and right end surfaces of the outer square tube (8) are fixedly connected with hanging plates (12) that match the L-shaped snap-fit ​​plate (18). When the outer square tube (8) moves downward, the snap-fit ​​device can be opened to move the L-shaped snap-fit ​​plate (18) inward. When the outer square tube (8) moves downward again, the snap-fit ​​device can be closed to move the L-shaped snap-fit ​​plate (18) outward.

3. A tank hoisting device as claimed in claim 2, characterized in that: The buckle devices also include a track plate (14), two side plates (13) are fixedly connected to the left and right sides of the upper end surface of the hanging plate (1), the track plates (14) are slidably connected to the inner walls of the two corresponding side plates (13), the inner end surface of the track plate (14) is fixedly connected to the front and rear sides thereof, and the two guide plates (15) are provided with long oblique grooves (16), the L-shaped card plates (18) are slidably connected to the upper end surface of the hanging plate (1), and the front and rear end surfaces of the L-shaped card plates (18) are fixedly connected to second sliding pins (17) that match the long oblique grooves (16).

4. A tank hoisting device as claimed in claim 3, characterized in that: The upper end surface of the hanging plate (1) is fixedly connected to first springs (19) that match the track plate (14) on both sides. The upper end surface of the hanging plate (1) is also hingedly connected to limit connecting rods (20) on both sides. The upper ends of the limit connecting rods (20) are fixedly connected to cylinders (21). The inner walls of the cylinders (21) are slidably connected to first live pins (23). The inner walls of the bottom ends of the cylinders (21) are fixedly connected to second springs (22). The outer end surfaces of the track plates (14) are provided with springs that match the first live pins (23). The track groove comprises a short vertical groove (26), a V-shaped groove (27), a long vertical groove (24) and a first inclined groove (25). When the first movable pin (23) is engaged with the long vertical groove (24), the track plate (14) can be locked at the top position. When the first sliding pin (6) is engaged with the V-shaped groove (27), the track plate (14) can be locked at the bottom position. The left and right end surfaces of the outer square tube (8) are both fixedly connected with pressure rods (11) that are matched with the track plate (14).

5. A tank hoisting device as claimed in claim 1, characterized in that: The outer surface of the threaded rod (57) is threadedly connected to a threaded seat (58) which is slidably connected to the clamp seat (47). The upper end of the threaded seat (58) is hinged to two short connecting rods (59). The inner wall of the clamp seat (47) is fixedly connected to a rebounder (48). The upper end of the outer surface of the rebounder (48) is rotatably connected to two swing rods (60). The short connecting rods (59) are hinged to the corresponding swing rods (60). The arc-shaped clamping plates (67) are installed on the corresponding swing rods (60).

6. A tank hoisting device as claimed in claim 5, characterized in that: The swing rod (60) is hinged with a pry seat (63), the arc-shaped clamping plate (67) is fixedly connected to the corresponding pry seat (63), the inner wall of the swing rod (60) is slidably connected with a long connecting plate (61), the swing rod (60) is also provided with a first connecting rod (62), one end of the first connecting rod (62) is hinged to the corresponding long connecting plate (61), and the other end of the first connecting rod (62) is hinged to the corresponding pry seat (63), the inner wall of the long connecting plate (61) is fixedly connected with a second movable pin (64), and the outer surface of the rebounder (48) is fixedly connected with a fan-shaped rail plate (65), and the fan-shaped rail plate (65) is provided with two sections of variable diameter grooves (66) matching with the second movable pin (64).

7. A tank hoisting device as claimed in claim 5, characterized in that: The lower end of the rebounder (48) is fixedly connected to a first support seat (50), and the lower end of the first support seat (50) is rotatably connected to a roller (49). The front and rear end surfaces of the clamp seat (47) are slidably connected to a U-shaped plate (52). The front and rear end surfaces of the first support seat (50) are fixedly connected to a connecting plate (51), and the upper end of the connecting plate (51) is fixedly connected to the corresponding U-shaped plate (52). The inner wall of the U-shaped plate (52) is slidably connected to an L-shaped support plate (53), and the inner side ends of the two L-shaped support plates (53) are fixedly connected to a fourth sliding pin (54). The front and rear end surfaces of the clamp seat (47) are provided with a side rail groove (55) matched with the fourth sliding pin (54).

8. A tank hoisting device according to claim 1, characterized in that: The telescopic clamping arms each comprise a side clamping plate (31) and an inner clamping plate (32), the inner clamping plates (32) being slidably connected to the inner wall of the side clamping plate (31), and the side clamping plates (31) being slidably connected to the corresponding transverse plate (7); the inner walls at both ends of the side clamping plates (31) are slidably connected to a movable control plate (34), the upper sides of the inner end surfaces of the two control plates (34) are fixedly connected to a driving plate (37), the inner walls at the upper ends of the side clamping plates (31) are slidably connected to a first latch pin (40), the first latch pin The lower ends of the pins (40) are fixedly connected to third sliding pins (38); the driving plates (37) are provided with oblique key slots (39) matched with the third sliding pins (38); the lower end surface of the transverse plate (7) is provided with a plurality of first retaining slots (42) matched with the first retaining pins (40); the lower sides of the inner end surfaces of the two control plates (34) are fixedly connected to second retaining pins (41); the front and rear end surfaces of the inner clamping plate (32) are provided with a plurality of second retaining slots (43) matched with the second retaining pins (41).

9. The method for hoisting a material tank hoisting device according to claim 1, characterized in that: The steps include: S1, driving the outer square tube (8) to make the hanging plate (1) reach the specified position, and when the outer square tube (8) moves upward, the telescopic clamping arm and the arc clamping plate (67) can be driven to move inward synchronously, and after the arc clamping plate (67) moves inward to contact the outer surface of the barrel, when the outer square tube (8) continues to move upward, the arc clamping plate (67) can clamp and fix the barrel and lift the barrel to move upward along with the outer square tube (8); S2. When the outer square tube (8), the hanging plate (1) and the bucket reach the next designated position, the outer square tube (8) moves downward to place the bucket on the ground. When the outer square tube (8) continues to move downward, the arc-shaped clamping plate (67) moves outward, so that the arc-shaped clamping plate (67) is in an open state.

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