Iron plate hopper

Abstract

The invention relates to the technical field of hoppers and discloses an iron plate hopper which comprises a hopper body and lifting lugs, the lifting lugs are arranged on the two sides of the top of the hopper body, an outer frame plate is arranged on the outer side of the periphery of the hopper body, lifting receding grooves are formed in the positions, below the lifting lugs, of the two sides of the outer frame plate, and sawtooth blocks are arranged on the inner walls of the two sides of the lifting receding grooves. A fixing plate is arranged on the outer wall of the lifting lug, an elastic piece is arranged on one side of the inner wall of the fixing plate, a guide rod is arranged at one end of the elastic piece, and a clamping block is arranged at one end of the guide rod. The clamping blocks can generate sliding friction with the sawtooth blocks, so that the outer frame plate ascends, after the outer frame plate ascends, the clamping blocks abut against the sawtooth blocks under the elastic action of the elastic pieces, through ascending and descending of the outer frame plate, the height of the whole iron plate hopper can be adjusted, and the iron plate hopper is suitable for being used for containing pipe accessories of various specifications and models.

Description

Technical Field

[0001] The invention relates to the technical field of hoppers, in particular to an iron plate hopper. Background Art

[0002] In the management of the carbon steel pipe production line in the company's pipe processing workshop, the continuous expansion of production scale and increasingly stringent process requirements have led to numerous challenges in the storage and transportation of pipe accessories. Traditional storage methods often lead to disorganized placement of pipe accessories, which not only increases the time and cost of finding and retrieving them, but also easily causes damage to pipe accessories due to collisions and squeezing, thus affecting the smoothness of the entire production process and product quality.

[0003] Refining the assembly and matching of pipe systems is a key step in improving production efficiency and quality. The introduction of iron plate hoppers has become a crucial measure in managing the materials used for supporting pipe accessories in both indoor and outdoor production areas.

[0004] The iron plate hopper is used for both in-field storage and off-site support of larger pipe accessories, such as flanges and elbows. This allows for neat and orderly storage of pipe accessories, greatly facilitating access and storage operations for workers and significantly improving work efficiency. Furthermore, by utilizing forklift transport, the iron plate hopper enables efficient and safe transportation of pipe accessories between different sites, further optimizing production processes and reducing labor costs and the risk of damage during transportation.

[0005] However, the height of traditional iron plate hoppers cannot be flexibly adjusted according to actual needs after they are put into use. Due to the fixed height of the hopper, it is difficult to adapt to the stacking requirements of pipe accessories of different specifications and sizes. Pipe accessories are easily placed beyond the specified height of the hopper. As a result, the pipe accessories may slide off the edge of the hopper and cause damage to the pipe accessories. Summary of the Invention

[0006] The object of the present invention is to provide an iron plate hopper to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an iron plate hopper, comprising: a hopper body and a lifting ear, lifting ears are provided on both sides of the top of the hopper body, an outer frame plate is provided on the outside of the hopper body, lifting and retreat grooves are provided on both sides of the outer frame plate below the lifting ears, serrated blocks are provided on the inner walls of both sides of the lifting and retreat grooves, a fixed plate is provided on the outer wall of the lifting ear, an elastic sheet is provided on one side of the inner wall of the fixed plate, a guide rod is provided at one end of the elastic sheet, a block is provided at one end of the guide rod, the outer wall contour of one side of the block is consistent with the outer wall contour of the serrated block, and guide blocks are provided on the outer wall of the hopper body on both sides of the guide rod.

[0008] As a further illustration of the present invention, a lifting hole is provided inside the lifting ear, and drainage holes are provided at the four corners of the bottom of the hopper body.

[0009] As a further illustration of the present invention, support channel steels are provided on both sides of the outer wall of the bottom of the hopper body, and reinforcing ribs are provided in the middle of the outer wall of the bottom of the hopper body.

[0010] As a further explanation of the present invention, side panels are provided at the tops of both sides of the outer frame panel, a U-shaped groove is opened in the middle of the side panel, and a tightening rope is provided inside the U-shaped groove.

[0011] As a further explanation of the present invention, a holder is provided on the outside of the U-shaped groove, one end of the tightening rope is fixed to one of the holders, a U-shaped holder is provided on the outer wall of the other holder, and a tightener is provided inside the U-shaped holder.

[0012] As a further explanation of the present invention, the tightener includes a rotating shaft, both ends of the rotating shaft rotate with the U-shaped seat, one end of the tightening rope is fixed to the outer wall of the middle part of the rotating shaft, a handle is fixed to one end of the rotating shaft, a ratchet is fixed to the other end of the rotating shaft, and a pawl is provided on one side of the U-shaped seat for rotation.

[0013] As a further illustration of the present invention, the pawl is connected to the U-shaped seat via a torsion spring shaft, and the pawl is always in contact with the ratchet wheel under the elastic force of the torsion spring shaft.

[0014] As a further illustration of the present invention, a flange is provided at the bottom of the hopper body, and the bottom of the outer frame plate can be in contact with the top of the flange.

[0015] As a further explanation of the present invention, the holder is in a shape with a small diameter in the middle and large diameters at both ends, and the middle portion of the holder is in contact with the inner walls of both sides of the U-shaped groove.

[0016] As a further illustration of the present invention, there are multiple reinforcing ribs, and the multiple reinforcing ribs are arranged in a triangular shape at the bottom of the hopper body.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention realizes that, by providing the hopper body, outer frame plate and serrated block, when the iron plate hopper is in use, the outer frame plate is pulled upwards, and at this time, the block guide rod and the elastic sheet generate an extrusion force, so that the elastic sheet is further compressed, and the block can generate sliding friction with the serrated block, so that the outer frame plate rises. After the outer frame plate rises, the block abuts against the serrated block under the elastic force of the elastic sheet, and the height of the outer frame plate is fixed by the friction between the block and the elastic sheet. By lifting and lowering the outer frame plate, the height of the entire iron plate hopper can be adjusted, and the invention is suitable for the placement and use of pipe accessories of various specifications and models. After the pipe accessory is placed inside the iron plate hopper, the height of the clamping seat in the U-shaped groove is adjusted so that the tightening rope is located above the pipe accessory, and then the handle is turned to drive the rotating shaft and the ratchet to rotate, so that one end of the tightening rope is wound around the outer wall of the rotating shaft. By tightening the tightening rope, the top of the pipe accessory is fixed. After tightening, the rotation of the rotating shaft is limited by the ratchet to prevent the tightening rope from loosening, thereby improving the stability of the pipe accessory when placed in the iron plate hopper.

[0018] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the iron plate hopper of the present invention; Figure 2 for Figure 1 A in the middle is an enlarged structural diagram; Figure 3 A perspective view of the iron plate hopper of the present invention from another perspective; Figure 4 This is a front view of the iron plate hopper of the present invention; Figure 5 This is a main cross-sectional view of the iron plate hopper of the present invention; Figure 6 for Figure 5 The enlarged structural diagram at B in the middle; Figure 7 It is a top view of the iron plate hopper of the present invention; Figure 8 A right view of the iron plate hopper of the present invention; Figure 9 This is a bottom view of the iron plate hopper of the present invention; Figure 10 This is a three-dimensional diagram of the iron plate hopper of the present invention from another perspective.

[0020] In the figure: 1. Hopper body; 2. Drain hole; 3. Lifting ear; 4. Lifting hole; 5. Support channel steel; 6. Side plate; 7. U-shaped groove; 8. Clamping seat; 9. Tightening rope; 10. Fixed plate; 11. Outer frame plate; 12. Lifting and retreat groove; 13. Serrated block; 14. Reinforcement rib; 15. Guide block; 16. Guide rod; 17. Clamping block; 18. Elastic sheet; 19. U-shaped seat; 20. Rotating shaft; 21. Ratchet; 22. Pawl; 23. Handle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Example 1: Please refer to Figure 1 、 Figure 3-10 The present invention provides a technical solution: an iron plate hopper, comprising: a hopper body 1 and lifting lugs 3. The lifting lugs 3 are provided on both sides of the top of the hopper body 1. The lifting lugs 3 provide lifting points for the hopper, allowing it to be moved and transported using lifting equipment, greatly facilitating its transfer and use between different work locations. The hopper body 1 is surrounded by an outer frame plate 11. The outer frame plate 11 enhances the structural strength of the hopper body 1, protecting it from damage caused by external impacts, and also provides a basic structure for adjusting the hopper's height. Lifting and clearance grooves 12 are provided on both sides of the outer frame plate 11, below the lifting lugs 3. These grooves provide space for the outer frame plate 11 to be raised and lowered, allowing it to be lifted upward when needed, thereby adjusting the overall height of the hopper to accommodate pipe fittings of different specifications and models. Serrated blocks 13 are provided on the inner walls of the lifting and clearance grooves 12. These serrated blocks 13 cooperate with retaining blocks 17 to maintain the height of the outer frame plate 11 through friction, ensuring that the hopper remains stable after height adjustment and prevents it from falling due to external forces. The outer wall of the lifting lug 3 is equipped with a fixing plate 10. An elastic sheet 18 is located on one side of the inner wall of the fixing plate 10. This elastic sheet 18 provides elasticity for the clamping block 17, allowing it to generate a restoring force when squeezed, thereby tightly contacting the serrated block 13 and reliably securing the outer frame plate 11 at its height. A guide rod 16 is located at one end of the elastic sheet 18, and a clamping block 17 is located at one end of the guide rod 16. The guide rod 16 guides the movement of the clamping block 17, ensuring that the clamping block 17 accurately engages the serrated block 13. The clamping block 17, in turn, secures the outer frame plate 11 at its height through friction with the serrated block 13. The outer wall profile of the clamping block 17 matches that of the serrated block 13. This matching design increases the contact area and friction between the clamping block 17 and the serrated block 13, ensuring that the outer frame plate 11 is more stably fixed in the desired position after height adjustment. Guide blocks 15 are located on the outer wall of the hopper body 1, on both sides of the guide rod 16. The guide block 15 provides additional support and guidance for the guide rod 16, ensuring that the guide rod 16 remains stable during movement without deviation or shaking, thereby improving the accuracy and reliability of the lifting and lowering of the outer frame plate 11.

[0023] When the outer frame 11 is pulled upward, the clamping block 17, guide rod 16, and elastic sheet 18 are subjected to a compressive force, further compressing the elastic sheet 18. This allows the clamping block 17 to generate sliding friction with the serrated block 13, causing the outer frame 11 to rise. When the outer frame 11 reaches the desired height and the pulling stops, the elastic sheet 18 begins to return to its original shape, generating an elastic force. This elastic force acts on the clamping block 17, causing it to tightly abut against the serrated block 13.

[0024] Because the outer wall profile of one side of the clamping block 17 matches the outer wall profile of the serrated block 13, there is a high friction force at the contact surface between them. This friction force is sufficient to resist the downward trend of the outer frame plate 11 due to its own weight or slight external force. Therefore, in the absence of external force, the outer frame plate 11 can maintain its adjusted height and will not fall on its own.

[0025] Because the contact surface profiles of the clamping block 17 and the serrated block 13 match, and the roughness of the contact surface can be increased in the design of the serrated block 13, the frictional force is also increased accordingly. As long as the frictional force between the clamping block 17 and the serrated block 13 is greater than or equal to the downward pressure generated by the outer frame's own weight, the outer frame will not fall. In actual design, engineers will determine parameters such as the elastic force of the elastic piece 18 and the roughness of the contact surface between the clamping block 17 and the serrated block 13 through calculation and experimentation to ensure that the outer frame can maintain a stable height within the normal weight range.

[0026] The hopper body 1 has a flange at its bottom, and the bottom of the outer frame plate 11 can contact the top of the flange. The flange provides bottom support for the outer frame 2. When the outer frame plate 11 is lowered to its lowest position, its bottom contacts the top of the flange. The flange acts as a bottom support, providing additional stability and support for the outer frame plate 11.

[0027] There is a lifting hole 4 inside the lifting ear 3, and drainage holes 2 are opened at the four corners of the bottom of the hopper body 1. The drainage holes 2 can drain the accumulated water in the hopper or the moisture in the material in time, preventing the material from being damp and deteriorating or the water inside the hopper from corroding, thereby extending the service life of the hopper.

[0028] Support channels 5 are located on both sides of the outer wall of the bottom of the hopper body 1, and reinforcing ribs 14 are located in the middle of the outer wall. Multiple ribs 14 are arranged in a triangular pattern across the bottom of the hopper body 1. The support channels 5 enhance the structural strength of the hopper bottom and improve its load-bearing capacity, allowing the hopper to safely store and carry materials such as pipes and accessories. The triangular arrangement of the ribs 14 increases the overall rigidity and stability of the hopper bottom, preventing deformation or damage when carrying heavy objects and improving safety. The triangular arrangement of the ribs 14 across the bottom of the hopper body 1 significantly enhances the structural strength and stability of the hopper bottom. The triangular structure offers excellent mechanical stability and load-bearing capacity, effectively distributing and absorbing the pressure and stress generated by the hopper when carrying materials, preventing deformation or damage. This design not only extends the hopper's service life but also ensures safety during transportation and storage, enabling the hopper to more reliably carry materials of various sizes and weights.

[0029] When the iron plate hopper is in use, the outer frame plate 11 is pulled upwards. At this time, the block 17, the guide rod 16 and the elastic sheet 18 generate an extrusion force, so that the elastic sheet 18 is further compressed. The block 17 can generate sliding friction with the serrated block 13, so that the outer frame plate 11 rises. After the outer frame plate 11 rises, the block 17 abuts against the serrated block 13 under the elastic force of the elastic sheet 18. The friction between the block 17 and the elastic sheet 18 can fix the height of the outer frame plate 11. By lifting and lowering the outer frame plate 11, the height of the entire iron plate hopper can be adjusted, which is suitable for the placement of pipe accessories of various specifications and models.

[0030] Example 2: Please refer to Figures 1-10 The present invention provides a technical solution: an iron plate hopper, comprising: a hopper body 1 and lifting lugs 3. The lifting lugs 3 are provided on both sides of the top of the hopper body 1. The lifting lugs 3 provide lifting points for the hopper, allowing it to be moved and transported using lifting equipment, greatly facilitating its transfer and use between different work locations. The hopper body 1 is surrounded by an outer frame plate 11. The outer frame plate 11 enhances the structural strength of the hopper body 1, protecting it from damage caused by external impacts, and also provides a basic structure for adjusting the hopper's height. Lifting and clearance grooves 12 are provided on both sides of the outer frame plate 11, below the lifting lugs 3. These grooves provide space for the outer frame plate 11 to be raised and lowered, allowing it to be lifted upward when needed, thereby adjusting the overall height of the hopper to accommodate pipe fittings of different specifications and models. Serrated blocks 13 are provided on the inner walls of the lifting and clearance grooves 12. These serrated blocks 13 cooperate with retaining blocks 17 to maintain the height of the outer frame plate 11 through friction, ensuring that the hopper remains stable after height adjustment and prevents it from falling due to external forces. The outer wall of the lifting lug 3 is equipped with a fixing plate 10. An elastic sheet 18 is located on one side of the inner wall of the fixing plate 10. This elastic sheet 18 provides elasticity for the clamping block 17, allowing it to generate a restoring force when squeezed, thereby tightly contacting the serrated block 13 and reliably securing the outer frame plate 11 at its height. A guide rod 16 is located at one end of the elastic sheet 18, and a clamping block 17 is located at one end of the guide rod 16. The guide rod 16 guides the movement of the clamping block 17, ensuring that the clamping block 17 accurately engages the serrated block 13. The clamping block 17, in turn, secures the outer frame plate 11 at its height through friction with the serrated block 13. The outer wall profile of the clamping block 17 matches that of the serrated block 13. This matching design increases the contact area and friction between the clamping block 17 and the serrated block 13, ensuring that the outer frame plate 11 is more stably fixed in the desired position after height adjustment. Guide blocks 15 are located on the outer wall of the hopper body 1, on both sides of the guide rod 16. The guide block 15 provides additional support and guidance for the guide rod 16, ensuring that the guide rod 16 remains stable during movement without deviation or shaking, thereby improving the accuracy and reliability of the lifting and lowering of the outer frame plate 11.

[0031] When the outer frame 11 is pulled upward, the clamping block 17, guide rod 16, and elastic sheet 18 are subjected to a compressive force, further compressing the elastic sheet 18. This allows the clamping block 17 to generate sliding friction with the serrated block 13, causing the outer frame 11 to rise. When the outer frame 11 reaches the desired height and the pulling stops, the elastic sheet 18 begins to return to its original shape, generating an elastic force. This elastic force acts on the clamping block 17, causing it to tightly abut against the serrated block 13.

[0032] Because the outer wall profile of one side of the clamping block 17 matches the outer wall profile of the serrated block 13, there is a high friction force at the contact surface between them. This friction force is sufficient to resist the downward trend of the outer frame plate 11 due to its own weight or slight external force. Therefore, in the absence of external force, the outer frame plate 11 can maintain its adjusted height and will not fall on its own.

[0033] Because the contact surface profiles of the clamping block 17 and the serrated block 13 match, and the roughness of the contact surface can be increased in the design of the serrated block 13, the frictional force is also increased accordingly. As long as the frictional force between the clamping block 17 and the serrated block 13 is greater than or equal to the downward pressure generated by the outer frame's own weight, the outer frame will not fall. In actual design, engineers will determine parameters such as the elastic force of the elastic piece 18 and the roughness of the contact surface between the clamping block 17 and the serrated block 13 through calculation and experimentation to ensure that the outer frame can maintain a stable height within the normal weight range.

[0034] The hopper body 1 has a flange at its bottom, and the bottom of the outer frame plate 11 can contact the top of the flange. The flange provides bottom support for the outer frame 2. When the outer frame plate 11 is lowered to its lowest position, its bottom contacts the top of the flange. The flange acts as a bottom support, providing additional stability and support for the outer frame plate 11.

[0035] There is a lifting hole 4 inside the lifting ear 3, and drainage holes 2 are opened at the four corners of the bottom of the hopper body 1. The drainage holes 2 can drain the accumulated water in the hopper or the moisture in the material in time, preventing the material from being damp and deteriorating or the water inside the hopper from corroding, thereby extending the service life of the hopper.

[0036] Support channels 5 are located on both sides of the outer wall of the bottom of the hopper body 1, and reinforcing ribs 14 are located in the middle of the outer wall. Multiple ribs 14 are arranged in a triangular pattern across the bottom of the hopper body 1. The support channels 5 enhance the structural strength of the hopper bottom and improve its load-bearing capacity, allowing the hopper to safely store and carry materials such as pipes and accessories. The triangular arrangement of the ribs 14 increases the overall rigidity and stability of the hopper bottom, preventing deformation or damage when carrying heavy objects and improving safety. The triangular arrangement of the ribs 14 across the bottom of the hopper body 1 significantly enhances the structural strength and stability of the hopper bottom. The triangular structure offers excellent mechanical stability and load-bearing capacity, effectively distributing and absorbing the pressure and stress generated by the hopper when carrying materials, preventing deformation or damage. This design not only extends the hopper's service life but also ensures safety during transportation and storage, enabling the hopper to more reliably carry materials of various sizes and weights. When the iron plate hopper is in use, the outer frame plate 11 is pulled upwards. At this time, the block 17, the guide rod 16 and the elastic sheet 18 generate an extrusion force, so that the elastic sheet 18 is further compressed. The block 17 can generate sliding friction with the serrated block 13, so that the outer frame plate 11 rises. After the outer frame plate 11 rises, the block 17 abuts against the serrated block 13 under the elastic force of the elastic sheet 18. The friction between the block 17 and the elastic sheet 18 can fix the height of the outer frame plate 11. By lifting and lowering the outer frame plate 11, the height of the entire iron plate hopper can be adjusted, which is suitable for the placement of pipe accessories of various specifications and models.

[0037] Please also refer to Figure 2 Side panels 6 are located on top of the outer frame 11. A U-shaped groove 7 is defined in the center of each side panel, and a tightening cord 9 is positioned within the U-shaped groove 7. The side panels 6 provide a mounting base for the tightening cord 9, while the U-shaped groove 7 limits its range of motion, ensuring that it remains precisely positioned above the pipe fittings, facilitating subsequent tightening operations. The tightening cord 9 secures the pipe fittings within the hopper, preventing them from shaking or falling during transport or use, thereby improving their stability.

[0038] A retaining bracket 8 is located outside the U-shaped groove 7. One end of the tightening cord 9 is secured to one retaining bracket 8. A U-shaped bracket 19 is located on the outer wall of the other retaining bracket 8. A tightening device is housed within this bracket 19. The retaining bracket 8 provides a secure anchor point for the tightening cord 9, allowing it to be securely attached to the hopper. The retaining bracket 8 also facilitates adjustment and replacement of the tightening cord 9. The tightening cord 9 can be adjusted and tightened using the tightening device, thus firmly securing the pipe accessory. The U-shaped bracket 19 provides mounting space for the tightening device.

[0039] The tightener includes a rotating shaft 20, the ends of which rotate with the U-shaped seat 19. One end of the tightening rope 9 is fixed to the outer wall of the middle part of the rotating shaft 20. A handle 23 is fixed to one end of the rotating shaft 20, and a ratchet 21 is fixed to the other end of the rotating shaft 20. A pawl 22 is provided on one side of the U-shaped seat 19 for rotation. The rotation of the rotating shaft 20 can drive the tightening rope 9 to wind or loosen, thereby tightening or loosening the pipe accessory. The fixed connection between the tightening rope 9 and the rotating shaft 20 ensures the reliability and effectiveness of the tightening operation. The handle 23 provides the operator with a convenient means of rotating the rotating shaft 20, making the tightening or loosening operation easier and faster. The combination of the ratchet 21 and the pawl 22 achieves a one-way rotation restriction on the rotating shaft 20, preventing the tightening rope 9 from loosening due to external forces after tightening, thereby improving the stability and reliability of the pipe accessory fixation.

[0040] The pawl 22 is connected to the U-shaped seat 19 via a torsion spring shaft. The pawl 22 is always in contact with the ratchet 21 under the elastic force of the torsion spring shaft. The torsion spring shaft provides elastic support for the pawl 22, so that the pawl 22 can always be in close contact with the ratchet 21, thereby ensuring the effectiveness of the one-way rotation restriction function of the shaft 20.

[0041] The clamping base 8 has a small diameter in the middle and large diameters at both ends. The center of the clamping base 8 contacts the inner walls of the U-shaped groove 7. This design allows the clamping base 8 to stably secure the tightening cord 9 within the U-shaped groove 7. The contact between the center of the clamping base 8 and the inner walls of the U-shaped groove 7 also increases the stability of the clamping base 8, preventing the tightening cord 9 from loosening or falling off during use. It also facilitates installation and removal of the clamping base 8 from the U-shaped groove 7.

[0042] When the iron plate hopper is in use, by pulling the outer frame plate 11 upward, the block 17, the guide rod 16 and the elastic sheet 18 generate an extrusion force, so that the elastic sheet 18 is further compressed, and the block 17 can generate sliding friction with the serrated block 13, so that the outer frame plate 11 rises. After the outer frame plate 11 rises, the block 17 abuts against the serrated block 13 under the elastic force of the elastic sheet 18. The friction between the block 17 and the elastic sheet 18 achieves the fixing of the height of the outer frame plate 11. By lifting and lowering the outer frame plate 11, the height of the entire iron plate hopper can be adjusted, which is suitable for the placement of pipe accessories of various specifications and models. After the pipe accessory is placed inside the iron plate hopper, the height of the holder 8 in the U-shaped groove 7 is adjusted so that the tightening rope 9 is located above the pipe accessory, and then the handle 23 is rotated to drive the rotating shaft 20 and the ratchet 21 to rotate, so that one end of the tightening rope 9 is wound around the outer wall of the rotating shaft 20. By tightening the tightening rope 9, the top of the pipe accessory is fixed. After tightening, the rotation of the rotating shaft 20 is limited by the ratchet 22 to prevent the tightening rope 9 from loosening, thereby improving the stability of the pipe accessory when placed in the iron plate hopper.

[0043] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. Iron plate hopper, including: A hopper body (1) and a lifting lug (3), characterized in that: the hopper body (1) is provided with lifting lugs (3) on both sides of the top, the hopper body (1) is provided with an outer frame plate (11) on the outside around the four sides, and lifting and retreating grooves (12) are provided on both sides of the outer frame plate (11) below the lifting lugs (3), and sawtooth blocks (13) are provided on the inner walls of both sides of the lifting and retreating grooves (12), a fixed plate (10) is provided on the outer wall of the lifting lug (3), an elastic sheet (18) is provided on one side of the inner wall of the fixed plate (10), a guide rod (16) is provided at one end of the elastic sheet (18), a block (17) is provided at one end of the guide rod (16), and the outer wall profile of one side of the block (17) is consistent with the outer wall profile of the sawtooth block (13), and the outer wall of the hopper body (1) is provided with guide blocks (15) on both sides of the guide rod (16).

2. The iron plate hopper according to claim 1, characterized in that: A lifting hole (4) is provided inside the lifting lug (3), and drainage holes (2) are provided at the four corners of the bottom of the hopper body (1).

3. The iron plate hopper according to claim 1, characterized in that: Support channel steels (5) are provided on both sides of the bottom outer wall of the hopper body (1), and reinforcing ribs (14) are provided in the middle of the bottom outer wall of the hopper body (1).

4. The iron plate hopper according to claim 1, characterized in that: Side panels (6) are provided at the tops of both sides of the outer frame plate (11), a U-shaped groove (7) is provided in the middle of the side panel (6), and a tightening rope (9) is provided inside the U-shaped groove (7).

5. The iron plate hopper according to claim 1, characterized in that: A clamping seat (8) is provided on the outside of the U-shaped groove (7), one end of the tightening rope (9) is fixed to one of the clamping seats (8), and a U-shaped seat (19) is provided on the outer wall of the other clamping seat (8), and a tightener is provided inside the U-shaped seat (19).

6. The iron plate hopper according to claim 5, characterized in that: The tightener comprises a rotating shaft (20), both ends of the rotating shaft (20) rotate with the U-shaped seat (19), one end of the tightening rope (9) is fixed to the outer wall of the middle part of the rotating shaft (20), a handle (23) is fixed to one end of the rotating shaft (20), a ratchet (21) is fixed to the other end of the rotating shaft (20), and a ratchet (22) is provided on one side of the U-shaped seat (19) for rotation.

7. The iron plate hopper according to claim 6, characterized in that: The pawl (22) is connected to the U-shaped seat (19) via a torsion spring shaft, and the pawl (22) is always in contact with the ratchet (21) under the elastic force of the torsion spring shaft.

8. The iron plate hopper according to claim 1, characterized in that: The bottom of the hopper body (1) is provided with a flange, and the bottom of the outer frame plate (11) is capable of contacting the top of the flange.

9. The iron plate hopper according to claim 5, characterized in that: The clamping seat (8) is in a shape with a small diameter in the middle and large diameters at both ends, and the middle of the clamping seat (8) contacts the inner walls of both sides of the U-shaped groove (7).

10. The iron plate hopper according to claim 3, characterized in that: There are a plurality of reinforcing ribs (14), and the plurality of reinforcing ribs (14) are arranged in a triangular shape at the bottom of the hopper body (1).

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