Accurate positioning device for hoisting of crane

Abstract

The invention discloses an accurate positioning device for crane hoisting, and relates to the technical field of cranes, the accurate positioning device comprises a hoisting main body, the bottom of the hoisting main body is fixedly connected with a supporting bin, the four corners of the bottom of the supporting bin are rotatably connected with movable plates respectively, and the two ends of the outer wall of the supporting bin are provided with adjusting mechanisms; one end of the top of the movable plate is rotationally connected with a push rod, and the top of the push rod is in lap joint with a steel ball. The push rod is arranged at one end of the top of the movable plate, the movable plate away from the inclined side exerts pressure on the push rod, the push rod pushes the steel ball arranged at the top, and therefore the offset plate moves in the inclined direction, the hoisting body keeps overall balance, and meanwhile the problem that when a crane hoists a container, the hoisting body cannot move is further solved. The problem that the crane is required to be dragged manually due to the fact that the crane is difficult to fix the top of the container due to the fact that the crane is inclined due to the influence of uneven weight of the container is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cranes, and in particular to a precise positioning device for crane hoisting. Background Art

[0002] A crane refers to a multi-action lifting machinery that can vertically lift and horizontally move heavy objects within a certain range. It is also called an overhead crane, overhead crane, or crane. The development and use of cranes in the market are becoming more and more extensive; among them, crane spreaders are tools used to move materials.

[0003] The existing technology has the following problems: 1. The existing precise positioning device for crane hoisting is affected by the uneven weight of the container during use, causing the vehicle to tilt, making it difficult for the crane to grab and fix the container, thus requiring manual towing of the crane; 2. During the use of the existing precise positioning device for crane hoisting, the exterior of the container is prone to slight deformation when used for a long time, resulting in different heights of the slots on the top of the container, making it difficult for the crane anchor point to be inserted into the container slot. Summary of the invention

[0004] The present invention provides a precise positioning device for crane hoisting to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A precise positioning device for crane hoisting, comprising a hoisting body, the bottom of the hoisting body is fixedly connected to a support bin, the four corners of the bottom of the support bin are rotatably connected to movable plates, and adjustment mechanisms are arranged at both ends of the outer wall of the support bin, one end of the top of the movable plate is rotatably connected to a push rod, and a steel ball is overlapped on the top of the push rod, and an adjustment rod is fixedly connected to one end of the bottom of the movable plate close to the push rod, and one end of the movable plate is fixedly connected to a fixer; The center of the bottom of the inner wall of the lifting body is fixedly connected to the limited position bin, the inner wall of the limited position bin is slidably connected to the limited position disk, the top of the limited position disk is fixedly connected to the reset disk, the bottom of the limited position disk is fixedly connected to the offset plate, and the top of the offset plate is slidably connected to the bottom of the lifting body, and the inner wall of the lifting body is provided with a reset mechanism; The four corners of the top of the support bin are respectively fixedly connected to the limiting tube, and the inner wall of the limiting tube is slidably connected to the outer wall of the push rod, while the steel ball is located between the push rod and the offset plate and is slidably connected to the inner wall of the limiting tube.

[0006] A further improvement of the technical solution of the present invention is that the reset mechanism includes a limit box fixedly connected to one side of the inner wall of the lifting body, one side of the inner wall of the limit box is fixedly connected to a hydraulic rod, the output end of the hydraulic rod is fixedly connected to a toothed plate, and the outer wall of the toothed plate is slidably connected to the inner wall of the limit box, the toothed plate is meshed with a gear on the side away from the limit box, the top of the gear is fixedly connected to a square rotating piece, and the top of the square rotating piece is rotatably connected to the top of the inner wall of the lifting body, the two ends of the outer wall of the square rotating piece are rotatably connected to a first connecting rod, one end of the first connecting rod is rotatably connected to a moving bin, both sides of the outer wall of the moving bin are rotatably connected to second connecting rods, the bottom of the second connecting rod away from one end of the moving bin is fixedly connected to a reset rod, and one side of the outer wall of the reset rod overlaps the outer wall of the reset disk.

[0007] A further improvement of the technical solution of the present invention is that the adjustment mechanism includes a support frame rotatably connected to the two ends of the outer wall of the support bin, buffer rods are rotatably connected to both sides of the outer wall of the support frame, one end of the buffer rod is rotatably connected to an adjustment plate, and one end of the top of the adjustment plate is slidably connected to the bottom of the adjustment rod.

[0008] A further improvement of the technical solution of the present invention is that a linkage plate is rotatably connected at the center of the bottom of the support bin, both ends of the outer wall of the linkage plate overlap with holes set on one side of the outer wall of the adjustment plate, and a stopper is fixedly connected to one end of the linkage plate.

[0009] A further improvement of the technical solution of the present invention is that: a limiting block is fixedly connected to the middle part of the two sides of the inner wall of the lifting body, and the inner wall of the limiting block is slidably connected to the outer wall of the mobile warehouse, sliding grooves are provided on both sides of the outer wall of the limiting block, and the inner wall of the sliding groove is slidably connected to one end of the outer wall of the second connecting rod, a push tube is slidably connected to one side of the inner wall of the limiting block, and one end of the push tube is fixedly connected to a movable plate.

[0010] A further improvement of the technical solution of the present invention is that: a first conical block is fixedly connected to one end of the outer wall of the push tube, an extension rod is slidably connected to the inner wall of the push tube, and a second conical block is fixedly connected to one end of the outer wall of the extension rod.

[0011] A further improvement of the technical solution of the present invention is that elastic blocks are fixedly connected to the upper and lower ends of one side of the inner wall of the mobile bin, and the two sides of the outer wall of the elastic block present a smooth arc shape, and one side of the outer wall of the elastic block overlaps with one side of the outer wall of the second conical block.

[0012] A further improvement of the technical solution of the present invention is that: an electric telescopic plate is fixedly connected to the inner wall of the movable plate, and an extension frame is fixedly connected to the output end of the electric telescopic plate.

[0013] A further improvement of the technical solution of the present invention is that a double-headed electric telescopic rod is fixedly connected to the inner wall of the extension frame, and the output ends on both sides of the double-headed electric telescopic rod are respectively fixedly connected to fixed blocks, one side of the outer wall of the fixed block is rotatably connected to a positioning plate, and both ends of the outer wall of the positioning plate are rotatably connected to rollers.

[0014] A further improvement of the technical solution of the present invention is that: both sides of the outer wall of the fixer are rotatably connected with elastic linkage rods, and both ends of one side of the outer wall of the elastic linkage rod are rotatably connected with rollers.

[0015] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art: 1. The present invention provides a precise positioning device for crane hoisting, by arranging a push rod at one end of the top of a movable plate, so that the movable plate away from the inclined side applies pressure to the push rod, so that the push rod pushes a steel ball arranged on the top, and moves upward in the limiting tubes arranged at the four corners of the top of the support bin, so that the steel ball pushes the inclined plate of the offset plate, thereby causing the offset plate to move in the inclined direction, and the inclined plate at the inclined part is used to support the steel ball and the push rod, so that the hoisting body maintains overall balance while the anchor point at the output end of the fixer can be inserted into the card slot on the top of the container and fixed, further solving the problem that when the crane is hoisting the container, it is affected by the uneven weight of the container itself, causing the vehicle to tilt, making it difficult for the crane to grab and fix the container, thereby requiring manual towing of the crane.

[0016] 2. The present invention provides a precise positioning device for crane hoisting, by arranging an adjusting rod at one end of the bottom of the movable plate close to the push rod, the cross section of the bottom of the adjusting rod presses down the cross section of the top of the adjusting plate, so that the adjusting plate is slightly tilted, and by arranging a linkage plate at the center of the bottom of the supporting bin, the two ends of the outer wall of the linkage plate are inserted into the holes of the adjusting plate. When the adjusting plate is squeezed by the adjusting rod and the tilt amplitude is small, the linkage plate remains stationary. When the tilt angle of the adjusting plate is large, the linkage plate is used to drive the adjusting plate on the other side to tilt, so that the movable plates at the four corners of the container are located at different heights, which is convenient for the fixer at one end of the movable plate to install the container, and further solves the problem that in the process of transporting the container by the crane, the outer surface of the container is prone to slight deformation when used for a long time, resulting in different heights of the slot on the top of the container, thereby making it difficult for the anchor point of the crane to be inserted into the slot of the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a top cross-sectional schematic diagram of the present invention; Figure 3 It is a front cross-sectional schematic diagram of the present invention; Figure 4 It is a side cross-sectional schematic diagram of the present invention; Figure 5 It is a schematic diagram of the reset mechanism of the present invention; Figure 6 It is a schematic diagram of the internal structure of the support bin of the present invention; Figure 7 This is a schematic diagram of the bottom structure of the support bin of the present invention; Figure 8 It is a schematic diagram of the adjustment mechanism of the present invention; Fig. 9 For the present invention Figure 3 The enlarged schematic diagram at A in the middle; Fig.10 For the present invention Figure 6 Enlarged schematic diagram of point B in the middle.

[0018] In the figure: 1. hoisting body; 2. support bin; 3. movable plate; 4. push rod; 5. steel ball; 6. adjusting rod; 7. fixer; 8. limit bin; 9. limit plate; 10. reset plate; 11. offset plate; 12. limit tube; 13. limit box; 14. hydraulic rod; 15. tooth plate; 16. gear; 17. square rotating piece; 18. first linkage rod; 19. mobile bin; 20. second linkage rod; 21. reset rod; 22. buffer rod; 23. Adjustment plate; 24. Linkage plate; 25. Block; 26. Limit block; 27. Slide; 28. Push tube; 29. ​​Moving plate; 30. First conical block; 31. Extension rod; 32. Second conical block; 33. Elastic block; 34. Electric telescopic plate; 35. Extension frame; 36. Double-head electric telescopic rod; 37. Fixed block; 38. Positioning plate; 39. Roller; 40. Elastic linkage rod; 41. Roller; 42. Support frame. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with embodiments: Example 1 like Figure 1-Figure 10As shown, the present invention provides a precise positioning device for crane hoisting, including a hoisting body 1, a support bin 2 is fixedly connected to the bottom of the hoisting body 1, and four corners of the bottom of the support bin 2 are rotatably connected to movable plates 3, and adjustment mechanisms are arranged at both ends of the outer wall of the support bin 2, one end of the top of the movable plate 3 is rotatably connected to a push rod 4, and a steel ball 5 is overlapped on the top of the push rod 4, and an adjusting rod 6 is fixedly connected to the end of the bottom of the movable plate 3 close to the push rod 4, and a fixer 7 is fixedly connected to one end of the movable plate 3, and the center of the bottom of the inner wall of the hoisting body 1 is fixed. The limiting bin 8 is connected, the inner wall of the limiting bin 8 is slidably connected to the limiting disk 9, and the top of the limiting disk 9 is fixedly connected to the reset disk 10, and the bottom of the limiting disk 9 is fixedly connected to the offset plate 11, and the top of the offset plate 11 is slidably connected to the bottom of the lifting body 1, and the inner wall of the lifting body 1 is provided with a reset mechanism, the four corners of the top of the supporting bin 2 are respectively fixedly connected to the limiting tube 12, and the inner wall of the limiting tube 12 is slidably connected to the outer wall of the push rod 4, and the steel ball 5 is between the push rod 4 and the offset plate 11, and is slidably connected to the inner wall of the limiting tube 12.

[0020] In this embodiment, a support warehouse 2 is provided at the bottom of the lifting body 1, and the lifting body 1 is lowered to the top of the container by using a steel cable. By respectively providing movable plates 3 at the four corners of the bottom of the support warehouse 2, the weight of the lifting body 1 is used to make the fixture 7 provided at one end of the movable plate 3 contact the slots provided at the four corners of the top of the container. Since the container cannot be weighed evenly when loading goods, it is easy to cause the entire vehicle to tilt slightly when transporting the container, resulting in the output end of the fixture 7 being offset from the slot on the top of the container, thereby causing the lifting body 1 to be lifted. The container cannot be fixed by the main body 1. A push rod 4 is arranged at one end of the top of the movable plate 3 so that the movable plate 3 on the tilted side of the container applies pressure to the push rod 4, so that the push rod 4 pushes the steel ball 5 arranged on the top and moves upward in the limit tube 12 arranged at the four corners of the top of the support warehouse 2. Since the four sides of the bottom of the offset plate 11 are provided with inclined plates, the steel ball 5 pushes the inclined plate of the offset plate 11, so that the offset plate 11 moves in the inclined direction, and the inclined plate at the inclined position is used to support the steel ball 5 and the push rod 4. By arranging an adjusting rod at one end of the bottom of the movable plate 3 near the push rod 4 6. Use the adjusting rod 6 to adjust the movable plate 3 so that the hoisting body 1 can maintain overall balance while the anchor point at the output end of the fixer 7 can be inserted into the slot on the top of the container and fixed. By setting a limit bin 8 at the center of the bottom of the inner wall of the hoisting body 1, the limit bin 8 is used to limit the limit plate 9 set at the top center of the offset plate 11 to prevent the offset plate 11 from moving too much, causing the steel ball 5 to break away from the limit of the offset plate 11 and the push rod 4 and fall off, thereby causing damage to the equipment. Then, the steel cable is recovered and the hoisting body 1 is lifted together with the container. At this time, the reset mechanism arranged on the inner wall of the lifting body 1 is used to make the reset rods 21 at the four corners push the reset plate 10 arranged on the top of the limit plate 9, so that the reset plate 10 together with the limit plate 9 and the offset plate 11 are moved to the center of the lifting body 1, so that the push rods 4 at the four corners and the steel balls 5 are kept at the same level, so that the support warehouse 2 and the container are kept balanced, further solving the problem that when the crane is lifting the container, it is affected by the uneven weight of the container itself, causing the vehicle to tilt, making it difficult for the crane to fix the top of the container, and thus requiring manual towing of the crane.

[0021] Example 2 like Figure 1-Figure 10As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the reset mechanism includes a limit box 13 fixedly connected to one side of the inner wall of the lifting body 1, a hydraulic rod 14 is fixedly connected to one side of the inner wall of the limit box 13, a tooth plate 15 is fixedly connected to the output end of the hydraulic rod 14, and the outer wall of the tooth plate 15 is slidably connected to the inner wall of the limit box 13, a gear 16 is meshed with the side of the tooth plate 15 away from the limit box 13, a square rotating plate 17 is fixedly connected to the top of the gear 16, and the top of the square rotating plate 17 is rotatably connected to the top of the inner wall of the lifting body 1, the two ends of the outer wall of the square rotating plate 17 are rotatably connected to the first connecting rod 18, one end of the first connecting rod 18 is rotatably connected to the moving bin 19, and the two sides of the outer wall of the moving bin 19 are rotatably connected to the second connecting rod 20, the bottom of the second connecting rod 20 away from one end of the moving bin 19 is fixedly connected to the reset rod 21, and one side of the outer wall of the reset rod 21 overlaps the outer wall of the reset disk 10.

[0022] In this embodiment, a limit box 13 is provided on one side of the inner wall of the lifting body 1, a hydraulic rod 14 is provided on one side of the inner wall of the limit box 13, and the hydraulic rod 14 is started to push the toothed plate 15 provided at its output end to move in the limit box 13, so that one side of the outer wall of the toothed plate 15 pushes the gear 16 to rotate, and a square rotating piece 17 is provided on the top of the gear 16, and the top of the square rotating piece 17 is connected to the top of the lifting body 1, so that when the square rotating piece 17 rotates, the first connecting rods 18 provided at both ends of the outer wall are pulled, so that the first connecting rods 18 pull the moving bin 19 to move toward the center of the lifting body 1, and second connecting rods 20 are provided on both sides of the outer wall of the moving bin 19, so that during the movement of the moving bin 19, Pull the second connecting rod 20 to rotate the reset rod 21 arranged at the bottom thereof, so that the reset rod 21 at the four corners of the inner wall of the lifting body 1 pushes the reset disk 10, so that the reset disk 10 drives the limit disk 9 and the offset plate 11 arranged at the bottom thereof to be at the center of the lifting body 1, and completes the reset of the offset plate 11, so that the push rod 4 and the steel ball 5 at the four corners of the inner wall of the supporting bin 2 are simultaneously horizontal, so that the container lifted from the bottom of the supporting bin 2 is restored to a horizontal state, further solving the problem that in the process of transporting the container by the crane, the center of gravity of the container and the lifting body 1 is offset due to the tilting of the container in the air, thereby causing uneven force on the fixed point of the lifting body 1, which makes it easy for the container to fall off.

[0023] Example 3 like Figure 1-Figure 10As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the adjustment mechanism includes a support frame 42 rotatably connected to the two ends of the outer wall of the support bin 2, and the two sides of the outer wall of the support frame 42 are rotatably connected with the buffer rod 22, and one end of the buffer rod 22 is rotatably connected with the adjustment plate 23, and one end of the top of the adjustment plate 23 is slidably connected to the bottom of the adjustment rod 6, and the center of the bottom of the support bin 2 is rotatably connected with a linkage plate 24, and the two ends of the outer wall of the linkage plate 24 overlap with the holes set on one side of the outer wall of the adjustment plate 23, and one end of the linkage plate 24 is fixedly connected with a stopper 25.

[0024] In this embodiment, by arranging support frames 42 at both ends of the outer wall of the support warehouse 2, buffer rods 22 are arranged on both sides of the outer wall of the support frame 42, and an adjustment plate 23 is arranged at one end of the buffer rod 22. When the four corners of the container are deformed, the weight of the lifting body 1 itself is used to press the movable plates 3 arranged at the four corners of the bottom of the support warehouse 2 to fit with the top of the container. At this time, the positions where the movable plates 3 at the four corners fit with the top of the container are different. By arranging an adjustment rod 6 at one end of the bottom of the movable plate 3 close to the push rod 4, the cross section of the bottom of the adjustment rod 6 presses down the cross section of the top of the adjustment plate 23, so that the adjustment plate 23 is slightly tilted. By arranging a linkage plate 24 at the center of the bottom of the support warehouse 2, the two ends of the outer wall of the linkage plate 24 are inserted into the holes of the adjustment plate 23. Since there is a certain gap between the holes of the linkage plate 24 and the adjustment plate 23, and the linkage plate 24 and the adjustment plate 23 have a certain gap, and the linkage plate 24 and the adjustment plate 23 have a certain gap, and the linkage plate 24 and the adjustment plate 23 have a certain gap, and the linkage plate 24 and the adjustment plate 23 have a certain gap. The movable plate 24 has good toughness and can adapt to slight torsion. When the adjusting plate 23 is squeezed by the adjusting rod 6 and the tilting amplitude is small, the linkage plate 24 remains stationary. When the adjusting plate 23 tilts at a large angle, the linkage plate 24 is used to drive the adjusting plate 23 on the other side to tilt, so that the push rod 4 and the steel ball 5 on the top of some movable plates 3 are temporarily separated from the contact with the offset plate 11 (and the gap caused by the separation is not enough for the steel ball 5 to fall off), so that the movable plates 3 at the four corners of the container are located at different heights, which is convenient for the fixer 7 at one end of the movable plate 3 to install the container, further solving the problem that in the process of transporting containers by the crane, due to the slight deformation of the exterior of the container when used for a long time, the height of the slot on the top of the container is different, which makes it difficult for the anchor point of the crane to be inserted into the slot of the container.

[0025] Example 4 like Figure 1-Figure 10 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, a limit block 26 is fixedly connected to the middle part of both sides of the inner wall of the lifting body 1, and the inner wall of the limit block 26 is slidably connected to the outer wall of the mobile bin 19, and sliding grooves 27 are provided on both sides of the outer wall of the limit block 26, and the inner wall of the sliding groove 27 is slidably connected to one end of the outer wall of the second connecting rod 20, and a push tube 28 is slidably connected to one side of the inner wall of the limit block 26, and one end of the push tube 28 is fixedly connected to a movable plate 29.

[0026] In this embodiment, by setting a limit block 26 in the middle of both sides of the inner wall of the lifting body 1, the limit block 26 is used to limit the mobile warehouse 19 to prevent the mobile warehouse 19 from offset during the movement, resulting in the reset rod 21 being unable to effectively reset the offset plate 11; by setting a slide groove 27 on both sides of the outer wall of the limit block 26, the slide groove 27 is used to limit the second connecting rod 20 set on both sides of the outer wall of the mobile warehouse 19 to prevent the second connecting rod 20 from being deformed, resulting in the reset rod 21 being unable to fit the reset disk 10; by setting a push tube 28 on one side of the inner wall of the limit block 26, when the mobile warehouse 19 moves, the push tube 28 is pulled to cause the mobile plate 29 set at one end to move closer to the center of the lifting body 1, so that the extension frame 35 fits the outer wall of the container, thereby achieving the purpose of positioning the container position.

[0027] Example 5 like Figure 1-Figure 10 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, one end of the outer wall of the push tube 28 is fixedly connected to a first conical block 30, the inner wall of the push tube 28 is slidably connected to an extension rod 31, and one end of the outer wall of the extension rod 31 is fixedly connected to a second conical block 32, and the upper and lower ends of one side of the inner wall of the mobile bin 19 are respectively fixedly connected to elastic blocks 33, and both sides of the outer wall of the elastic block 33 present a smooth arc shape, and one side of the outer wall of the elastic block 33 overlaps one side of the outer wall of the second conical block 32.

[0028] In this embodiment, a first conical block 30 is provided at one end of the outer wall of the push tube 28. When the mobile bin 19 moves in the limit block 26, elastic blocks 33 are provided at the upper and lower ends of one side of the inner wall of the mobile bin 19 to clamp the first conical block 30 and pull the push tube 28 toward the center of the lifting body 1. When the moving plate 29 provided at one end of the push tube 28 is in contact with one side of the outer wall of the lifting body 1, the push tube 28 remains stationary, and the mobile bin 19 is affected by the pulling force of the first connecting rod 18, so that the outer wall of the elastic block 33 presents a smooth arc-shaped side that is in contact with the chamfered surface of the first conical block 30, so that the elastic block 33 is squeezed and recovered. An extension rod 31 is provided on the inner wall of the push tube 28, and the overall length of the extension rod 31 is greater than the push tube 28. When the elastic block 33 is completely separated from the first conical block 3 0, thereby causing the elastic block 33 to rebound and push the second conical block 32 set at one end of the outer wall of the extension rod 31 to continue moving. Since the arc surface of the elastic block 33 is smaller than the plane of the second conical block 32, when the extension rod 31 moves to the end, the second conical block 32 is used to limit the movable bin 19. When the reset disk 10 is reset, the first connecting rod 18 pushes the movable bin 19 to move in the opposite direction, so that the inner wall of the movable bin 19 pushes the extension rod 31 to be re-inserted into the push tube 28. At this time, the movable bin 19 moves outward together with the extension rod 31 and the push tube 28. When the push tube 28 moves to the end, since the plane of the first conical block 30 is smaller than the arc surface of the elastic block 33, the elastic block 33 is affected by the thrust and recovered, so that the elastic block 33 moves to the other side of the first conical block 30 to complete the reset.

[0029] Example 6 like Figure 1-Figure 10 As shown, based on Example 1, the present invention provides a technical solution: preferably, the inner wall of the movable plate 29 is fixedly connected with an electric telescopic plate 34 , and the output end of the electric telescopic plate 34 is fixedly connected with an extension frame 35 .

[0030] In this embodiment, an electric telescopic plate 34 is provided on the inner wall of the movable plate 29. When the movable plate 29 gradually fits the lifting body 1, the electric telescopic plate 34 is started so that the extension frame 35 provided at its output end fits the outer wall of the container, thereby facilitating the fixer 7 to fix the container.

[0031] Example 7 like Figure 1-Figure 10 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the inner wall of the extension frame 35 is fixedly connected with a double-headed electric telescopic rod 36, the output ends on both sides of the double-headed electric telescopic rod 36 are respectively fixedly connected with fixed blocks 37, one side of the outer wall of the fixed block 37 is rotatably connected with a positioning plate 38, and the two ends of the outer wall of the positioning plate 38 are rotatably connected with rollers 39.

[0032] In this embodiment, a double-headed electric telescopic rod 36 is arranged on the inner wall of the extension frame 35. When the moving plate 29 gradually fits the lifting body 1, the double-headed electric telescopic rod 36 is started to extend its output end. A fixing block 37 is arranged at the output end of the double-headed electric telescopic rod 36, and a positioning plate 38 is arranged on one side of the outer wall of the fixing block 37. When the rollers 39 arranged at both ends of the outer wall of the positioning plate 38 fit the outer wall of the container, the pressure sensor arranged in the roller 39 is used to extend the double-headed electric telescopic rod 36 again, so that the rollers 39 arranged at both ends of the outer wall of the positioning plate 38 are located outside the container. The wall moves, and when the positioning plate 38 moves to the end of the container, it is squeezed by the moving plate 29, causing one end of the positioning plate 38 to flip over, so that the right-angle inner wall of the positioning plate 38 is completely in contact with the container, thereby completing the positioning of the container. When the container is offset, the positioning plate 38 cannot be completely in contact with the container, so a signal is sent to remind the operator, further solving the problem that in the process of the crane transporting the container, when the vehicle is transporting the container, the parking of the vehicle is prone to offset, resulting in the crane being unable to align with the slot on the top of the container, thereby requiring manual towing of the crane.

[0033] Example 8 like Figure 1-Figure 10 As shown, based on Example 1, the present invention provides a technical solution: preferably, both sides of the outer wall of the fixer 7 are rotatably connected with elastic linkage rods 40, and both ends of one side of the outer wall of the elastic linkage rod 40 are rotatably connected with rollers 41.

[0034] In this embodiment, elastic linkage rods 40 are provided on both sides of the outer wall of the fixer 7 to prevent the bottom of the fixer 7 from hitting the top of the container when the fixer 7 is aligned with the top of the container, thereby preventing the top of the container from being concave and deformed. Rollers 41 are provided at both ends of one side of the outer wall of the elastic linkage rod 40 to reduce the scratching of the bottom of the fixer 7 on the top of the container when the fixer 7 is fixed to the slot on the top of the container, thereby preventing the output end of the fixer 7 from being deformed due to long-term scratching, thereby preventing the anchor point of the fixer 7 from being difficult to fix the container.

[0035] The following is a detailed description of the working principle of the precise positioning device for crane hoisting.

[0036] like Figure 1-Figure 10As shown, by setting a support warehouse 2 at the bottom of the lifting body 1, the lifting body 1 is lowered to the top of the container by using a steel cable, and by setting movable plates 3 at the four corners of the bottom of the support warehouse 2, the weight of the lifting body 1 is used to make the fixer 7 set at one end of the movable plate 3 contact the slots set at the four corners of the top of the container. Since the container cannot be weighed evenly when loading goods, it is easy to cause the vehicle to tilt slightly when transporting the container, causing the output end of the fixer 7 to deviate from the slot on the top of the container, so that the lifting body 1 cannot fix the container. By setting a push rod 4 at one end of the top of the movable plate 3, the movable plate 3 on the tilted side of the container applies pressure to the push rod 4, so that the push rod 4 pushes the steel ball 5 set on the top to move upward in the limiting tube 12 set at the four corners of the top of the support warehouse 2. Since the four sides of the bottom of the offset plate 11 are provided with inclined plates, the steel ball 5 pushes the inclined plate of the offset plate 11, so that the offset plate 11 moves in the inclined direction, and the inclined plate at the inclined position is used to support the steel ball 5 and the push rod 4. By arranging support frames 42 at both ends of the outer wall of the support warehouse 2, buffer rods 22 are arranged on both sides of the outer wall of the support frame 42, and an adjustment plate 23 is arranged at one end of the buffer rod 22, when the four corners of the container are deformed, the weight of the hoisting body 1 itself is used to press the movable plates 3 set at the four corners of the bottom of the support warehouse 2 to fit with the top of the container. At this time, the positions where the movable plates 3 at the four corners fit with the top of the container are different. An adjusting rod 6 is provided at one end of the bottom of the movable plate 3 close to the push rod 4, so that the cut surface of the bottom of the adjusting rod 6 presses down the cut surface of the top of the adjusting plate 23, so that the adjusting plate 23 is slightly tilted. A linkage plate 24 is provided at the center of the bottom of the support bin 2, so that the two ends of the outer wall of the linkage plate 24 are inserted into the holes of the adjusting plate 23. Since there is a certain gap between the linkage plate 24 and the hole of the adjusting plate 23, and the linkage plate 24 has good toughness and can adapt to slight torsion, when the adjusting plate 23 is squeezed by the adjusting rod 6 and the tilting amplitude is small, the linkage plate 24 remains stationary. When the tilting angle of the adjusting plate 23 is large, the linkage plate 24 is used to drive the adjusting plate 23 on the other side to tilt, so that the push rod 4 and the steel ball 5 on the top of part of the movable plate 3 are temporarily separated from the deflection. The movable plates 11 are in contact with each other (and the gap caused by the separation is not enough to prevent the steel ball 5 from falling off), so that the movable plates 3 at the four corners of the container are at different heights, which is convenient for the fixer 7 at one end of the movable plates 3 to install the container, so that the lifting body 1 maintains overall balance while the anchor point at the output end of the fixer 7 can be inserted into the card slot at the top of the container and fixed. By setting a limit bin 8 at the center of the bottom of the inner wall of the lifting body 1, the limit bin 8 is used to limit the limit plate 9 set at the top center of the offset plate 11, so as to avoid the offset plate 11 from moving too much, causing the steel ball 5 to break away from the limit of the offset plate 11 and the push rod 4 and fall off, thereby causing damage to the equipment. At this time, the steel cable is then recovered to lift the lifting body 1 together with the container.At this time, the reset mechanism provided on the inner wall of the lifting body 1 is used to make the reset rods 21 at the four corners push the reset plate 10 provided on the top of the limit plate 9, so that the reset plate 10, the limit plate 9 and the offset plate 11 are moved to the center of the lifting body 1, so that the push rods 4 at the four corners and the steel balls 5 are kept at the same level, so that the support warehouse 2 and the container are kept balanced, further solving the problem that when the crane is lifting the container, it is affected by the uneven weight of the container itself, causing the vehicle to tilt, making it difficult for the crane to fix the top of the container, and thus requiring manual towing of the crane.

[0037] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A precise positioning device for crane hoisting, comprising a hoisting body (1), characterized in that: The bottom of the lifting body (1) is fixedly connected to a support bin (2), the four corners of the bottom of the support bin (2) are rotatably connected to movable plates (3), and adjustment mechanisms are provided at both ends of the outer wall of the support bin (2), one end of the top of the movable plate (3) is rotatably connected to a push rod (4), and a steel ball (5) is overlapped on the top of the push rod (4), and an adjustment rod (6) is fixedly connected to one end of the bottom of the movable plate (3) close to the push rod (4), and one end of the movable plate (3) is fixedly connected to a fixer (7); A limit bin (8) is fixedly connected to the center of the bottom of the inner wall of the lifting body (1), the inner wall of the limit bin (8) is slidably connected to a limit plate (9), the top of the limit plate (9) is fixedly connected to a reset plate (10), the bottom of the limit plate (9) is fixedly connected to a deflection plate (11), the top of the deflection plate (11) is slidably connected to the bottom of the lifting body (1), and the inner wall of the lifting body (1) is provided with a reset mechanism; The four corners of the top of the support bin (2) are respectively fixedly connected to the limiting tube (12), and the inner wall of the limiting tube (12) is slidably connected to the outer wall of the push rod (4), while the steel ball (5) is located between the push rod (4) and the offset plate (11), and is slidably connected to the inner wall of the limiting tube (12).

2. The precise positioning device for crane hoisting according to claim 1, characterized in that: The reset mechanism comprises a limit box (13) fixedly connected to one side of the inner wall of the lifting body (1), a hydraulic rod (14) fixedly connected to one side of the inner wall of the limit box (13), a toothed plate (15) fixedly connected to the output end of the hydraulic rod (14), and the outer wall of the toothed plate (15) is slidably connected to the inner wall of the limit box (13), a gear (16) is meshed on the side of the toothed plate (15) away from the limit box (13), a square rotating plate (17) is fixedly connected to the top of the gear (16), and the square rotating plate (17) is fixedly connected to the inner wall of the limit box (13). The top of the square rotating plate (17) is rotatably connected to the top of the inner wall of the lifting body (1), the two ends of the outer wall of the square rotating plate (17) are rotatably connected to the first connecting rod (18), one end of the first connecting rod (18) is rotatably connected to the moving bin (19), the two sides of the outer wall of the moving bin (19) are rotatably connected to the second connecting rod (20), the bottom of the second connecting rod (20) away from the end of the moving bin (19) is fixedly connected to the reset rod (21), and one side of the outer wall of the reset rod (21) overlaps the outer wall of the reset disk (10).

3. The precise positioning device for crane hoisting according to claim 1, characterized in that: The adjustment mechanism comprises a support frame (42) rotatably connected to both ends of the outer wall of the support bin (2), buffer rods (22) are rotatably connected to both sides of the outer wall of the support frame (42), one end of the buffer rod (22) is rotatably connected to an adjustment plate (23), and one end of the top of the adjustment plate (23) is slidably connected to the bottom of the adjustment rod (6).

4. The precise positioning device for crane hoisting according to claim 3 is characterized in that: A linkage plate (24) is rotatably connected to the center of the bottom of the support bin (2), two ends of the outer wall of the linkage plate (24) overlap holes provided on one side of the outer wall of the adjustment plate (23), and a stopper (25) is fixedly connected to one end of the linkage plate (24).

5. The precise positioning device for crane hoisting according to claim 2, characterized in that: A limit block (26) is fixedly connected to the middle of both sides of the inner wall of the lifting body (1), and the inner wall of the limit block (26) is slidably connected to the outer wall of the movable bin (19), and sliding grooves (27) are provided on both sides of the outer wall of the limit block (26), and the inner wall of the sliding groove (27) is slidably connected to one end of the outer wall of the second connecting rod (20), and a push tube (28) is slidably connected to one side of the inner wall of the limit block (26), and one end of the push tube (28) is fixedly connected to the movable plate (29).

6. The precise positioning device for crane hoisting according to claim 5, characterized in that: One end of the outer wall of the push tube (28) is fixedly connected to a first conical block (30), the inner wall of the push tube (28) is slidably connected to an extension rod (31), and one end of the outer wall of the extension rod (31) is fixedly connected to a second conical block (32).

7. The precise positioning device for crane hoisting according to claim 6, characterized in that: The upper and lower ends of one side of the inner wall of the movable bin (19) are respectively fixedly connected with elastic clamping blocks (33), and both sides of the outer wall of the elastic clamping block (33) present a smooth arc shape, and one side of the outer wall of the elastic clamping block (33) overlaps one side of the outer wall of the second conical blocking block (32).

8. The precise positioning device for crane hoisting according to claim 5, characterized in that: An electric telescopic plate (34) is fixedly connected to the inner wall of the movable plate (29), and an extension frame (35) is fixedly connected to the output end of the electric telescopic plate (34).

9. The precise positioning device for crane hoisting according to claim 8, characterized in that: A double-headed electric telescopic rod (36) is fixedly connected to the inner wall of the extension frame (35); output ends on both sides of the double-headed electric telescopic rod (36) are respectively fixedly connected to fixed blocks (37); a positioning plate (38) is rotatably connected to one side of the outer wall of the fixing block (37); and rollers (39) are rotatably connected to both ends of the outer wall of the positioning plate (38).

10. The precise positioning device for crane hoisting according to claim 1, characterized in that: Both sides of the outer wall of the fixer (7) are rotatably connected to elastic linkage rods (40), and both ends of one side of the outer wall of the elastic linkage rod (40) are rotatably connected to rollers (41).

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