Hopper automatic overturning crane carriage

Abstract

The hoisting trolley comprises a hoisting platform, a hoisting mechanism is arranged in the middle of the hoisting platform in a left-right sliding mode, a pulley lifting part is arranged below the hoisting mechanism, the hoisting platform is fixed to the upper end of the pulley lifting part, and the hopper with an upward opening is hinged to the lower end of the pulley lifting part. The right side of the hopper is provided with an overturning part, the overturning part comprises a winding drum arranged at the right part of the lifting platform, the winding drum is circumferentially provided with a winding rope, the fixed end of the winding rope fixes the winding drum, the free end of the winding rope fixes the lower end of the right side surface of the hopper, and the front end of the winding drum is provided with a winding drum driving mechanism; the hopper can be automatically turned over to enable the opening direction of the hopper to face downwards after the hopper is conveyed to the position above a designated position, meanwhile, the hopper is made to vibrate, materials adhering to an inner cavity of the hopper fall in the vibration process, the operation efficiency of the hopper is improved, and the cleaning difficulty of the hopper is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lifting device technology, and in particular to an automatic hopper tilting lifting trolley. Background Technology

[0002] In actual production and on-site construction, it is often necessary to lift hoppers containing small materials (such as slag, iron, and small parts) to another location, and then flip the hoppers to empty the contents into a designated place.

[0003] During the material dumping process, the common method is for workers to use a specific tool (iron hook) to fix one side of the hopper and manually flip the hopper. However, manually flipping the hopper is not only time-consuming and labor-intensive, but also detrimental to the safety of the workers.

[0004] The applicant's known hopper lifting and tilting machine (CN 111017571 A) includes a main beam and a frame mounted on the main beam. The frame is equipped with a transfer mechanism for driving the frame to move along the main beam. The frame is also equipped with a lifting mechanism, and the lower end of the lifting mechanism is equipped with a tilting device. The lifting mechanism is used to vertically lift and lower the tilting device, and the tilting device is used to tilt the hopper to dump materials. The hopper lifting and tilting machine includes a main beam and a frame mounted on the main beam. The frame is equipped with a transfer mechanism, which can drive the frame to move along the main beam to the upper end of the fermentation tank. The frame is also equipped with a lifting mechanism, and the lower end of the lifting mechanism is equipped with a tilting device. The lifting mechanism lowers the tilting device to a suitable position at the upper end of the fermentation tank, and the tilting device tilts the hopper to dump the materials in the hopper into the fermentation tank, thereby realizing the entire process of material transfer and dumping.

[0005] However, the above-mentioned device has the following problems:

[0006] The hopper of this device contains distiller's grains. Because the distiller's grains are sticky, they stick to the inner wall of the hopper during the pouring process, making it impossible to pour them all out and affecting work efficiency. Utility Model Content

[0007] The purpose of this utility model is to provide an automatic hopper tilting and lifting trolley that can automatically tilt the hopper so that the hopper opening faces downward after the hopper is transported to a designated position. At the same time, the hopper vibrates, and the material adhering to the inner cavity of the hopper falls during the vibration, thereby improving the efficiency of hopper operation and reducing the difficulty of cleaning the hopper.

[0008] The present invention adopts the following technical solution:

[0009] An automatic hopper tilting and lifting trolley includes a lifting platform, a lifting mechanism that slides left and right in the middle of the lifting platform, a pulley lifting part below the lifting mechanism, the upper end of the pulley lifting part being fixed to the lifting platform, and a hopper with an upward opening hinged to the lower end of the pulley lifting part. The lifting mechanism is used to drive the pulley lifting part to raise the hopper to a set height. A tilting part is provided on the right side of the hopper, the tilting part including a drum located on the right side of the lifting platform, a rope arranged circumferentially on the drum, the fixed end of the rope being fixed to the drum, and the free end of the rope being fixed to the lower end of the right side of the hopper. A drum drive mechanism is provided at the front end of the drum. A guide rod passes through the lower part of the hopper front and back, and the guide rod is rotatably connected to the hopper. Vertical supports are provided at both ends of the guide rod, and a hammer is fixed between the two vertical supports.

[0010] Furthermore, the lower part of the pulley lifting section 3 is fixedly connected to the front and rear of the connecting rod, with the front and rear ends of the connecting rod respectively passing through the upper opening of the hopper and rotatably connected to the hopper; the free end of the winding rope is fixed at the midpoint of the junction between the right side and the bottom surface of the hopper.

[0011] Furthermore, the hopper is equipped with energy storage mechanisms at both ends. The energy storage mechanisms include protrusions at both ends of the right side of the hopper and diagonal braces fixedly connected to the front end of the guide rod. Each set of protrusions has a vertical sliding groove. Support rods are provided at the front and rear of the right side of the hopper, with the front and rear ends of the support rods slidingly positioned in the corresponding sliding grooves. A tensioning wheel is coaxially provided in the middle of the support rod, and the free end of the winding rope passes through the tensioning wheel to the left circumferential direction. The front end of the support rod passes through the corresponding sliding groove, and an upper limit post is fixed to the front end face of the support rod. A lower limit post is provided below the upper limit post, and the lower limit post is fixedly connected to the corresponding protrusion. A guide rod is fixed to the lower end of the diagonal brace, and the upper part of the diagonal brace is located between the upper limit post and the lower limit post. The diagonal brace and the corresponding side vertical brace form a set angle.

[0012] Furthermore, the energy storage mechanism also includes trigger rings coaxially sleeved at the front and rear ends of the guide rod, and trigger pins vertically arranged on the front and rear sides of the hopper; each set of trigger rings is fixed with a corresponding vertical support on the circumferential downward side, the trigger rings are provided with limit through holes in the radial direction, and pin holes are provided in the radial direction at the corresponding limit through hole positions on the front and rear parts of the guide rod, and a return spring is provided at the bottom of each set of pin holes, the lower end of the return spring is fixed to the bottom of the pin hole, and the upper end of the return spring is fixedly connected to a limit pin, which is slidably arranged in the pin hole in the radial direction.

[0013] Furthermore, a driving pin is coaxially inserted into the upper part of the limiting through hole, and the driving pin is radially slidably connected to the limiting through hole; the upper end of the driving pin protrudes from the upper opening of the limiting through hole at a set height; syringes are fixedly installed on both the front and rear sides of the hopper, and trigger needles pass through the corresponding syringes and are slidably connected to the syringes up and down; the lower end of the trigger needle is circumferentially arranged corresponding to the trigger ring.

[0014] Furthermore, the upper end of the trigger needle is also provided with an eccentric wheel, which is eccentrically fixed to the connecting rod, and the axis of the eccentric wheel is located above the axis of the connecting rod. A support plate is also coaxially provided below the syringe, and a drive spring is provided between the support plate and the syringe. The upper and lower ends of the drive spring are respectively fixed to the bottom surface of the syringe and the upper surface of the support plate, and the drive spring is in a stretched state.

[0015] Furthermore, the lower end of the trigger pin is rounded.

[0016] Furthermore, the upper end face of the limiting pin is a protruding arc surface that matches the outer surface of the guide rod.

[0017] Furthermore, the lower end face of the drive pin is a concave surface that matches the upper end face of the limit pin.

[0018] Furthermore, the drum drive mechanism is a drive motor.

[0019] This invention improves the automation level of the equipment and reduces the difficulty of operation by setting up a flipping part and driving the drum to pull the rope through the drive motor.

[0020] This invention incorporates a hammer, which causes the hopper to rotate so that its opening faces downwards. The impact between the hopper and the hammer creates vibration, causing materials adhering to the inner cavity of the hopper to fall during the vibration. This improves the efficiency of hopper operation and reduces the difficulty of cleaning the hopper.

[0021] This invention incorporates an energy storage mechanism. The tension of the winding rope drives the inclined brace, which in turn rotates the guide rod connected to the inclined brace. The guide rod then drives the vertical brace located on its lower side, causing the lower end of the vertical brace to rotate to a set lifting height. The hammer, fixed to the vertical brace, is then lifted to the set height. A trigger ring controls the hammer's descent, further increasing the impact force between the hopper and the hammer. This causes more of the material adhering to the hopper's interior to detach and be poured out, thus further enhancing the hopper's carrying capacity. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the lifting platform in this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the drum in this utility model;

[0024] Figure 3 This is a schematic diagram of the diagonal brace in this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the syringe in this utility model;

[0026] Figure 5 This is a schematic diagram of the pin hole structure in this utility model;

[0027] Figure 6This is a schematic diagram of the hammer structure in this utility model;

[0028] Figure 7 This is a schematic diagram of the support plate in this utility model;

[0029] Figure 8 This is a schematic diagram of the hopper structure in this utility model.

[0030] In the diagram, 1. Lifting platform; 2. Lifting mechanism; 3. Pulley lifting section; 4. Hopper; 5. Drum; 6. Rope winding; 7. Drum drive mechanism; 8. Guide rod; 9. Vertical support; 10. Hammer; 11. Connecting rod; 12. Diagonal brace; 13. Sliding through groove; 14. Support rod; 15. Tensioning wheel; 16. Upper limit post; 17. Lower limit post; 18. Trigger ring; 19. Trigger pin; 20. Pin hole; 21. Return spring; 22. Limit pin; 23. Limit through hole; 24. Drive pin; 25. Support plate; 26. Syringe; 27. Drive spring; 28. Eccentric wheel. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0032] Figures 1 to 8 As shown, the automatic hopper tilting and lifting trolley of this utility model includes a lifting platform 1. A lifting mechanism 2 is slidably mounted on the middle of the lifting platform 1. A pulley lifting part 3 is mounted below the lifting mechanism 2. The upper end of the pulley lifting part 3 is fixed to the lifting platform 1, and the lower end of the pulley lifting part 3 is hinged to an upward-opening hopper 4. The lifting mechanism 2 is used to drive the pulley lifting part 3 to raise the hopper 4 to a set height. A tilting part is mounted on the right side of the hopper 4. The tilting part includes a part located on the right side of the lifting platform 1. The drum 5 has a winding rope 6 arranged around its circumference. The fixed end of the winding rope 6 is fixed to the drum 5, and the free end of the winding rope 6 is fixed to the lower right side of the hopper 4. The drum drive mechanism 7 is provided at the front end of the drum 5. The lower part of the hopper 4 is provided with a guide rod 8 running through it front and back. The guide rod 8 is rotatably connected to the hopper 4. The guide rod 8 is provided with vertical supports 9 at both ends. A hammer 10 is fixed between the two vertical supports 9. The hammer 10 is used to create vibration when the hopper 4 is flipped so that the opening of the hopper 4 faces downward.

[0033] During operation, the lifting mechanism 2 drives the hopper 4 to descend to a set height via the pulley lifting part 3, and loads material into the hopper 4. The lifting mechanism 2 then drives the hopper 4 to rise to the set height. The lifting mechanism 2 moves left and right along the lifting platform 1 to the set position. The drum drive mechanism 7 in the tilting part drives the drum 5 to rotate. The drum 5 pulls the lower part of the hopper 4 through the winding rope 6 fixed around the drum 5, causing the lower part of the hopper 4 to tilt upwards. That is, the hopper 4 tilts until all the material is poured out. When the hopper 4 tilts to the point where the opening faces downwards, the vertical support 9 remains vertical due to the gravity of the hammer 10, so that the hammer 10 is on the tilting path of the hopper 4. The opening of the hopper 4 impacts the hammer 10, creating vibration. The material adhering to the inner cavity of the hopper 4 falls off and is poured out, further improving the carrying capacity of the hopper 4.

[0034] During the process of the hopper 4 being driven to rotate by the rope 6, due to the large mass of material loaded in the hopper 4, the rotation speed of the hopper 4 is very slow for safety reasons, and the impact strength between the hopper 4 and the hammer 10 is relatively weak. In order to increase the impact strength between the hopper 4 and the hammer 10 and to pour out as much material as possible from the inner cavity of the hopper 4, in this utility model, the lower part of the pulley lifting part 3 is fixedly connected to the front and rear of the connecting rod 11. The front and rear ends of the connecting rod 11 are respectively inserted into the upper opening of the hopper 4 and are rotatably connected to the hopper 4; the free end of the rope 6 is fixed at the midpoint of the junction of the right side and the bottom surface of the hopper 4.

[0035] Energy storage mechanisms are also provided at both ends of the hopper 4. The energy storage mechanisms include protrusions at both ends of the right side of the hopper 4 and inclined supports 12 that are fixedly connected to the front end of the guide rod 8. Vertical sliding grooves 13 are opened in both sets of protrusions. Support rods 14 are provided at the front and rear of the right side of the hopper 4. The front and rear ends of the support rods 14 are respectively slidably installed in the corresponding sliding grooves 13. A tensioning wheel 15 is coaxially provided in the middle of the support rod 14. The free end of the rope 6 passes through the tensioning wheel 15 and rotates to the left. The front end of the support rod 14 is also provided with a corresponding sliding groove 13. Furthermore, an upper limit post 16 is fixed to the front end of the support rod 14, and a lower limit post 17 is correspondingly provided below the upper limit post 16. The lower limit post 17 is fixedly connected to the corresponding protrusion. The lower end of the diagonal brace 12 is fixed with a guide rod 8. The upper part of the diagonal brace 12 is located between the upper limit post 16 and the lower limit post 17. The diagonal brace 12 and the corresponding side vertical brace 9 are at a set angle. Due to the gravity of the hammer 10, the vertical brace 9 always has a vertical tendency. When the vertical brace 9 is vertical, the upper part of the diagonal brace 12 is pressed against the upper limit post 16, and the coiled rope 6 is pressed tightly against the left side of the tension wheel 15.

[0036] During operation, the winding rope 6 gradually tightens. As the force exerted by the winding rope 6 on the tensioning wheel 15 increases, the support rod 14, which is coaxially fixed with the tensioning wheel 15, moves downward along the sliding groove 13. The support rod 14 drives the inclined brace 12 to move downward, and the guide rod 8, which is fixed with the inclined brace 12, rotates. The guide rod 8 drives the vertical brace 9, which is located on the lower side of the guide rod 8, to rotate the lower end of the vertical brace 9 to the set lifting height. The hammer 10, which is fixed with the vertical brace 9, is then lifted to the set height.

[0037] To ensure that the hammer 10, after rising to a set height, rotates and falls under gravity, creating a strong impact with the hopper 4, the energy storage mechanism also includes trigger rings 18 coaxially sleeved at both ends of the guide rod 8, and trigger pins 19 vertically arranged on both sides of the hopper 4. Each set of trigger rings 18 has a corresponding vertical support 9 fixed to its circumference on the downward side. The trigger rings 18 have radially opened limit holes 23. The guide rod 8 has radially opened pin holes 20 at the corresponding limit holes 23 positions on both the front and rear sides. Each set of pin holes 20 has a return spring 21 at its bottom. The lower end of the return spring 21 is fixed to the bottom of the pin hole 20, and the upper end of the return spring 21 is fixedly connected to a limit pin 22 for limiting. Pin 22 is radially slidably disposed within pin hole 20. When return spring 21 is in a free state, the upper part of limit pin 22 is within limit through hole 23, and the lower part is within pin hole 20. Guide rod 8 and trigger ring 18 rotate synchronously. When return spring 21 is in a compressed state, limit pin 22 moves into pin hole 20, and guide rod 8 and trigger ring 18 can rotate relative to each other. In order to control the radial movement of limit pin 22, vertical support 9 and guide rod 8 rotate synchronously until hammer 10 connected to vertical support 9 rises to a set height and then rotates and falls under the action of gravity, forming a strong impact with hopper 4. In this embodiment, a limit through hole 23 is coaxially inserted with a... Drive pin 24 is radially slidably connected to limiting through hole 23; the upper end of drive pin 24 protrudes from the upper opening of limiting through hole 23 at a set height; syringes 26 are fixedly installed on both the front and rear sides of hopper 4, and trigger needle 19 passes through the corresponding syringe 26 and is slidably connected to the syringe 26 up and down; the lower end of trigger needle 19 is circumferentially arranged corresponding to trigger ring 18; when the opening of hopper 4 is upward, that is, when support rod 14 is at the uppermost end of sliding through groove 13, trigger needle 19 and drive pin 24 form a set angle; when the opening of hopper 4 is rotated downward, support rod 14 drives inclined brace 12 to move until inclined brace 12 is close to lower limiting post 17, trigger needle 19 and drive pin 24 form a set angle. 24 are coaxially arranged; in order to make the hopper 4 rotate to the lower opening, the trigger needle 19 presses the drive pin 24 to move the drive pin 24 into the pin hole 20. An eccentric wheel 28 is also provided at the upper end of the trigger needle 19. The eccentric wheel 28 is eccentrically fixed to the connecting rod 11, and the axis of the eccentric wheel 28 is above the axis of the connecting rod 11. A support plate 25 is also coaxially arranged below the syringe 26. A drive spring 27 is provided between the support plate 25 and the syringe 26. The upper and lower ends of the drive spring 27 are respectively fixed to the bottom surface of the syringe 26 and the upper end surface of the support plate 25. In order to ensure that the upper end surface of the trigger needle 19 is in close contact with the circumference of the eccentric wheel 28, the drive spring 27 is always in a stretched state.The upper surface of the trigger pin 19 is in close contact with the eccentric wheel 28 around the circumference. When the hopper 4 and the connecting rod 11 rotate relative to each other until the opening of the hopper 4 faces downward, the upper surface of the trigger pin 19 moves around the eccentric wheel 28. When the opening of the hopper 4 faces downward, the support rod 14 drives the inclined brace 12 to move until the inclined brace 12 contacts the lower limit post 17. The trigger pin 19 and the drive pin 24 are coaxially set. The eccentric wheel 28 drives the trigger pin 19 to squeeze the drive pin 24, causing the limit pin 22 to move into the pin hole 20. The guide rod 8 and the trigger ring 18 can rotate relative to each other. The hammer 10 rotates and falls under the action of gravity, forming a strong impact with the hopper 4.

[0038] To ensure that the drive pin 24 and the trigger pin 19 are coaxial when the trigger ring 18 rotates, in this embodiment, the lower end of the trigger pin 19 is rounded.

[0039] In this embodiment, the upper end face of the limiting pin 22 is a protruding arc surface that matches the outer surface of the guide rod 8.

[0040] In this embodiment, the lower end face of the drive pin 24 is a concave surface that matches the upper end face of the limiting pin 22.

[0041] In this embodiment, the pulley lifting part 3 includes a fixed pulley group connected to the heavy platform 1 and a movable pulley group hinged to the hopper 4.

[0042] In this embodiment, the drum drive mechanism is a drive motor.

[0043] When the hopper 4 opens upward to carry material, the hammer 10 is subjected to gravity, the vertical support 9 is set vertically, the upper part of the diagonal support 12 is pressed against the upper limit post 16, the winding rope 6 is pressed tightly against the left side of the tension wheel 15; the return spring 21 is in a free state, the upper part of the limit pin 22 is in the limit through hole 23, and the lower part is in the pin hole 20; the guide rod 8 and the trigger ring 18 rotate synchronously.

[0044] As the hopper 4 tilts downwards to dump material, the force exerted by the winding rope 6 on the tension wheel 15 increases. The support rod 14, which is coaxially fixed with the tension wheel 15, moves downwards along the sliding groove 13. The support rod 14 drives the inclined brace 12 to move downwards, and the guide rod 8, which is fixed with the inclined brace 12, rotates. The guide rod 8 drives the vertical brace 9, which is located on the lower side of the guide rod 8, to rotate the lower end of the vertical brace 9 to the set lifting height. The hammer 10, which is fixed with the vertical brace 9, is lifted to the set height. The support rod 14 drives the inclined brace 12 to move until the inclined brace 12 contacts the lower limit post 17. The trigger pin 19 and the drive pin 24 are coaxially set. As the hopper 4 continues to tilt, the upper surface of the trigger pin 19 moves circumferentially along the eccentric wheel 28, and the trigger pin 19 begins to squeeze the drive pin 24.

[0045] When the opening of the hopper 4 is flipped downward to the set position, the eccentric wheel 28 drives the trigger pin 19 to squeeze the drive pin 24 until the limit pin 22 moves into the pin hole 20, and the guide rod 8 and the trigger ring 18 can rotate relative to each other; the hammer 10 rotates and falls under the action of gravity, and forms a strong impact with the hopper 4, causing the material adhering to the inner cavity of the hopper 4 to fall off and pour out, further improving the carrying capacity of the hopper 4.

Claims

1. An automatic hopper tilting and lifting trolley, characterized in that: The system includes a lifting platform (1), a lifting mechanism (2) that slides left and right in the middle of the lifting platform (1), a pulley lifting part (3) that is located below the lifting mechanism (2), the upper end of the pulley lifting part (3) is fixed to the lifting platform (1), and the lower end of the pulley lifting part (3) is hinged to a hopper (4) with its opening facing upward. The lifting mechanism (2) is used to drive the pulley lifting part (3) to raise the hopper (4) to a set height. A tilting part is located on the right side of the hopper (4). The tilting part includes components installed on the lifting platform (1). 1) The right side of the drum (5) has a winding rope (6) circumferentially arranged. The fixed end of the winding rope (6) is fixed to the drum (5), and the free end of the winding rope (6) is fixed to the lower right side of the hopper (4). The front end of the drum (5) is provided with a drum drive mechanism (7). The lower part of the hopper (4) is provided with a guide rod (8) along the front and back. The guide rod (8) is rotatably connected to the hopper (4). The front and back ends of the guide rod (8) are provided with vertical supports (9), and a hammer (10) is fixed between the two vertical supports (9).

2. The automatic hopper overturning crane trolley according to claim 1, characterized in that: The lower part of the pulley lifting part (3) is fixed with connecting rods (11) at the front and back. The front and rear ends of the connecting rods (11) are respectively inserted into the upper opening of the hopper (4) and are rotatably connected to the hopper (4); the free end of the rope (6) is fixed at the midpoint of the junction between the right side and the bottom of the hopper (4).

3. The automatic hopper overturning crane trolley according to claim 1, characterized in that: The hopper (4) is also equipped with energy storage mechanisms at both ends. The energy storage mechanisms include protrusions at both ends of the right side of the hopper (4) and inclined supports (12) at the front end of the guide rod (8). Vertical sliding grooves (13) are opened in both sets of protrusions. Support rods (14) are provided at the front and rear of the right side of the hopper (4). The front and rear ends of the support rods (14) are respectively slidably arranged in the corresponding sliding grooves (13). A tensioning wheel (15) is coaxially arranged in the middle of the support rod (14). The winding rope (6) is free. The end passes through the tension wheel (15) to the left circumferential direction; the front end of the support rod (14) passes through the corresponding sliding groove (13) and the front end face of the support rod (14) is fixed with an upper limit post (16), and a lower limit post (17) is correspondingly provided below the upper limit post (16), and the lower limit post (17) is fixedly connected to the corresponding protrusion; the lower end of the diagonal brace (12) is fixed with a guide rod (8), the upper part of the diagonal brace (12) is between the upper limit post (16) and the lower limit post (17), and the diagonal brace (12) and the corresponding side vertical brace (9) are at a set angle.

4. The automatic hopper overturning crane trolley according to claim 3, characterized in that: The energy storage mechanism also includes trigger rings (18) coaxially sleeved at the front and rear ends of the guide rod (8) and trigger pins (19) vertically arranged on the front and rear sides of the hopper (4); each set of trigger rings (18) is fixed with corresponding vertical supports (9) on the circumference of the lower side. The trigger rings (18) are provided with limit holes (23) in the radial direction. The guide rod (8) is provided with pin holes (20) in the radial direction at the corresponding limit holes (23) positions in the front and rear parts. Each set of pin holes (20) is provided with a reset spring (21) at the bottom. The lower end of the reset spring (21) is fixed to the bottom of the pin hole (20), and the upper end of the reset spring (21) is fixedly connected to a limit pin (22). The limit pin (22) is slidably arranged in the pin hole (20) in the radial direction.

5. The automatic hopper overturning crane trolley according to claim 4, characterized in that: A driving pin (24) is coaxially inserted into the upper part of the limiting through hole (23), and the driving pin (24) and the limiting through hole (23) are slidably connected in the radial direction; the upper end of the driving pin (24) protrudes from the upper opening of the limiting through hole (23) at a set height; a syringe (26) is fixedly installed on both the front and rear sides of the hopper (4), and a trigger needle (19) passes through the corresponding syringe (26) and is slidably connected with the syringe (26) up and down; the lower end of the trigger needle (19) is circumferentially set corresponding to the trigger ring (18).

6. The automatic hopper overturning crane trolley according to claim 5, characterized in that: The trigger needle (19) is also provided with an eccentric wheel (28) at its upper end. The eccentric wheel (28) is eccentrically fixed to the connecting rod (11), and the axis of the eccentric wheel (28) is above the axis of the connecting rod (11). A support plate (25) is also coaxially provided below the syringe (26). A drive spring (27) is provided between the support plate (25) and the syringe (26). The upper and lower ends of the drive spring (27) are respectively fixed to the bottom surface of the syringe (26) and the upper end surface of the support plate (25). The drive spring (27) is in a stretched state.

7. The automatic hopper overturning crane trolley according to claim 5, characterized in that: The lower end of the trigger pin (19) is rounded.

8. The automatic hopper overturning crane trolley according to claim 4, characterized in that: The upper end face of the limiting pin (22) is a protruding arc surface that matches the outer surface of the guide rod (8).

9. The automatic hopper overturning crane trolley according to claim 5, characterized in that: The lower end face of the drive pin (24) is a concave surface that matches the upper end face of the limit pin (22).

10. The automatic hopper turnover crane trolley according to claim 1, characterized in that: The drum drive mechanism is a drive motor.

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