iron sheet hopper

Abstract

The utility model relates to the technical field of hopper, disclose iron sheet hopper, include: hopper main part and lifting lug, the both sides of hopper main part top are equipped with lifting lug, the outer frame board is equipped with around the periphery of hopper main part outside, the lifting recess is equipped with in the lifting lug below the both sides of outer frame board, the both sides inner wall of lifting recess is equipped with sawtooth block, the outer wall of lifting lug is equipped with fixed plate, the inner wall one side of fixed plate is equipped with elastic sheet, the one end of elastic sheet is equipped with guide rod, the one end of guide rod is equipped with clamping block, the utility model discloses by pulling the outer frame board upwards, the extrusion pressure of clamping block guide rod and elastic sheet produces when this, make elastic sheet force further compression, and clamping block can produce sliding friction with sawtooth block, make the outer frame board rise, when the outer frame board rises, and clamping block is in contact with sawtooth block under the action of the elasticity of elastic sheet, through the elevation of outer frame board, can realize the height adjustment of whole iron sheet hopper, is applicable to the placement use of the pipe accessory of multiple specifications and models.

Description

Technical Field

[0001] This utility model relates to the field of hopper technology, specifically to iron plate hoppers. Background Technology

[0002] In the process of managing the carbon steel pipe production line in the company's pipe processing workshop, with the continuous expansion of production scale and increasingly stringent process requirements, the storage and transportation of pipe fittings face many challenges. Traditional storage methods often lead to the chaotic placement of pipe fittings, which not only increases the time cost of finding and retrieving them, but also easily causes damage to pipe fittings due to collisions, squeezing, etc., thereby affecting the smoothness of the entire production process and product quality.

[0003] Refined assembly and distribution in piping system manufacturing is a key aspect of improving production efficiency and quality. Furthermore, the introduction of iron plate hoppers has become a crucial measure in the management of materials used for internal and external piping accessories.

[0004] The steel plate hopper serves as both an indoor storage and outdoor support for larger flanges, elbows, and other pipe fittings. This allows for neat and orderly storage of these fittings, greatly facilitating worker access and significantly improving work efficiency. Furthermore, by employing forklifts for transport, the steel plate hopper enables efficient and safe transportation of pipe fittings between different locations, further optimizing the production process and reducing labor costs and the risk of damage during transport.

[0005] However, the height of traditional iron plate hoppers cannot be flexibly adjusted according to actual needs after they are put into use. Because the hopper height is fixed, it is difficult to adapt to the stacking requirements of pipe accessories of different specifications and sizes. During the placement process, pipe accessories are very likely to exceed the limit height of the hopper. As a result, the pipe accessories may slip off the edge of the hopper, causing damage to the pipe accessories. Utility Model Content

[0006] The purpose of this invention is to provide an iron plate hopper to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an iron plate hopper, comprising: a hopper body and lifting lugs, the hopper body having lifting lugs on both sides of its top, an outer frame plate on the outer perimeter of the hopper body, lifting and yielding grooves on both sides of the outer frame plate below the lifting lugs, serrated blocks on the inner walls of both sides of the lifting and yielding grooves, a fixing plate on the outer wall of the lifting lugs, an elastic sheet on one side of the inner wall of the fixing plate, a guide rod at one end of the elastic sheet, a locking block at one end of the guide rod, the outer wall contour of one side of the locking block matching the outer wall contour of the serrated block, and guide blocks on both sides of the guide rod on the outer wall of the hopper body.

[0008] As a further explanation of this utility model, the lifting lug has a lifting hole inside, and the hopper body has drainage holes at the four corners of its bottom.

[0009] As a further explanation of this utility model, the bottom outer wall of the hopper body is provided with supporting channel steel on both sides, and the bottom outer wall of the hopper body is provided with reinforcing ribs in the middle.

[0010] As a further explanation of this utility model, the top of both sides of the outer frame plate is provided with side plates, and a U-shaped groove is opened in the middle of the side plate, and a tightening rope is provided inside the U-shaped groove.

[0011] As a further explanation of this utility model, a card seat is provided on the outer side of the U-shaped groove, one end of the tightening rope is fixed to one of the card seats, and a U-shaped seat is provided on the outer wall of the other card seat, with a tightening device inside the U-shaped seat.

[0012] As a further explanation of this utility model, the tightening device includes a rotating shaft with both ends rotating relative to a 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, and a ratchet is fixed to the other end of the rotating shaft. A pawl is rotatably provided on one side of the U-shaped seat.

[0013] As a further explanation of this utility model, the pawl and the U-shaped seat are connected by a torsion spring shaft, and the pawl is always in contact with the ratchet under the elastic force of the torsion spring shaft.

[0014] As a further explanation of this utility model, the bottom of the hopper body is provided with a flange, and the bottom of the outer frame plate can contact the top of the flange.

[0015] As a further explanation of this utility model, the card holder has a shape with a small diameter in the middle and a large diameter at both ends, and the middle part of the card holder is in contact with the inner walls of both sides of the U-shaped groove.

[0016] As a further explanation of this utility model, 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 beneficial effects of this utility model are:

[0018] This utility model, through its hopper body, outer frame plate, and sawtooth block, enables the use of the iron plate hopper. When the outer frame plate is pulled upward, the guide rod of the locking block and the elastic plate generate a squeezing force, which further compresses the elastic plate. The locking block can then slide against the sawtooth block, causing the outer frame plate to rise. After the outer frame plate rises, the locking block abuts against the sawtooth block under the elastic force of the elastic plate. Through the friction between the locking block and the elastic plate, the height of the outer frame plate is fixed. By raising and lowering the outer frame plate, the height of the entire iron plate hopper can be adjusted. It is suitable for placing various specifications and models of pipe accessories.

[0019] After the pipe fitting is placed inside the iron plate hopper, the height of the clamp in the U-shaped groove is adjusted so that the tightening rope is above the pipe fitting. Then, the handle is turned to drive the shaft and ratchet to rotate, so that one end of the tightening rope is wound around the outer wall of the shaft. By tightening the rope, the top of the pipe fitting is fixed. After tightening, the rotation of the shaft is limited by the pawl to prevent the tightening rope from loosening and to improve the stability of the pipe fitting when placed in the iron plate hopper.

[0020] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0021] Figure 1 This is a perspective view of the iron plate hopper of this utility model;

[0022] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0023] Figure 3 This is a perspective view of the iron plate hopper of this utility model from another angle;

[0024] Figure 4 This is the front view of the iron plate hopper of this utility model;

[0025] Figure 5 This is a front sectional view of the iron plate hopper of this utility model;

[0026] Figure 6 for Figure 5 Enlarged structural diagram at point B;

[0027] Figure 7 This is a top view of the iron plate hopper of this utility model;

[0028] Figure 8 This is a right view of the iron plate hopper of this utility model;

[0029] Figure 9 This is a bottom view of the iron plate hopper of this utility model;

[0030] Figure 10 This is a three-dimensional view of the iron plate hopper of this utility model from another perspective.

[0031] In the diagram: 1. Hopper body; 2. Drainage hole; 3. Lifting lug; 4. Lifting hole; 5. Support channel steel; 6. Side plate; 7. U-shaped channel; 8. Card seat; 9. Tightening rope; 10. Fixing plate; 11. Outer frame plate; 12. Lifting relief groove; 13. Serrated block; 14. Reinforcing rib; 15. Guide block; 16. Guide rod; 17. Card block; 18. Elastic sheet; 19. U-shaped seat; 20. Rotating shaft; 21. Ratchet; 22. Pad; 23. Handle. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] Example 1: Please refer to Figure 1 , Figures 3-10 This utility model provides a technical solution: an iron plate hopper, comprising: a hopper body 1 and lifting lugs 3. The hopper body 1 has lifting lugs 3 on both sides of its top, providing lifting points for the hopper, allowing it to be moved and transported using lifting equipment, greatly facilitating the transfer and use of the hopper in different work scenarios. An outer frame plate 11 is provided around the outer perimeter of the hopper body 1. The outer frame plate 11 enhances the structural strength of the hopper body 1, protecting the hopper from damage caused by external impacts, and also provides a basic structure for adjusting the height of the hopper. Lifting relief grooves 12 are provided on both sides of the outer frame plate 11 below the lifting lugs 3. The lifting relief grooves 12 provide space for the lifting and lowering of the outer frame plate 11, allowing it to be lifted upwards when needed, thereby adjusting the overall height of the hopper to accommodate the placement of pipe fittings of different specifications and models. The inner walls on both sides of the lifting relief groove 12 are provided with serrated blocks 13. The serrated blocks 13 cooperate with the locking blocks 17 to fix the height of the outer frame plate 11 through friction, ensuring that the hopper can remain stable after the height is adjusted and will not descend on its own due to external force. The outer wall of the lifting lug 3 is provided with a fixing plate 10. One side of the inner wall of the fixing plate 10 is provided with an elastic piece 18. The elastic piece 18 provides elasticity to the locking block 17, so that the locking block 17 can generate a restoring force when it is squeezed, thereby tightly abutting against the serrated blocks 13 and reliably fixing the height of the outer frame plate 11. One end of the elastic piece 18 is provided with a guide rod 16, and the other end of the guide rod 16 is provided with a locking block 17. The guide rod 16 guides the movement direction of the locking block 17, ensuring that the locking block 17 can accurately cooperate with the serrated blocks 13; the locking block 17 fixes the height of the outer frame plate 11 through the friction with the serrated blocks 13. The outer wall contour of one side of the locking block 17 matches the outer wall contour of the sawtooth block 13. This matching design increases the contact area and friction between the locking block 17 and the sawtooth block 13, allowing the outer frame plate 11 to be more stably fixed in the required position after height adjustment. Guide blocks 15 are provided on both sides of the guide rod 16 on the outer wall of the hopper body 1. The guide blocks 15 provide additional support and guidance for the guide rod 16, ensuring that the guide rod 16 remains stable during movement and does not deviate or wobble, thereby improving the accuracy and reliability of the lifting and lowering of the outer frame plate 11.

[0034] When the outer frame plate 11 is pulled upwards, the locking block 17, guide rod 16, and elastic sheet 18 are subjected to compressive force. The elastic sheet 18 is further compressed, allowing the locking block 17 to generate sliding friction with the serrated block 13, thus raising the outer frame plate 11. When the outer frame plate 11 rises to the desired height and pulling stops, the elastic sheet 18 begins to return to its original shape, generating elastic force. This elastic force acts on the locking block 17, causing the locking block 17 to tightly abut against the serrated block 13.

[0035] Because the outer wall contour of the locking block 17 matches the outer wall contour of the sawtooth block 13, the contact surface between them has a large frictional force. This frictional force is sufficient to resist the downward tendency 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 remain at its adjusted height position and will not fall on its own.

[0036] Because the contact surface contours between the locking 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 also increases accordingly. As long as the frictional force between the locking block 17 and the serrated block 13 is greater than or equal to the downward pressure generated by the weight of the outer frame plate, the outer frame plate will not fall on its own. In actual design, engineers will determine parameters such as the elastic force of the elastic sheet 18 and the roughness of the contact surface between the locking block 17 and the serrated block 13 through calculation and experimentation to ensure that the outer frame plate can stably maintain its height within the normal weight range.

[0037] 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 is in close contact with the top of the flange, and the flange, as the bottom support, provides additional stability and support for the outer frame plate 11.

[0038] The lifting lug 3 has a lifting hole 4 inside, and the four corners of the bottom of the hopper body 1 have drainage holes 2. The drainage holes 2 can drain the water in the hopper or the moisture in the material in time, preventing the material from getting damp and deteriorating or the water inside the hopper from corroding it, thus extending the service life of the hopper.

[0039] The hopper body 1 has supporting channel steels 5 on both sides of its bottom outer wall, and reinforcing ribs 14 in the middle of its bottom outer wall. Multiple reinforcing ribs 14 are arranged in a triangular pattern at the bottom of the hopper body 1. The supporting channel steels 5 enhance the structural strength of the hopper bottom, improve the hopper's load-bearing capacity, and allow the hopper to safely hold and carry materials such as pipe fittings. The triangular arrangement of the reinforcing ribs 14 enhances the overall rigidity and stability of the hopper bottom, preventing deformation or damage when carrying heavy loads and improving the hopper's safety. The triangular arrangement of multiple reinforcing ribs 14 at the bottom of the hopper body 1 significantly enhances the structural strength and stability of the hopper bottom. The triangular structure has excellent mechanical stability and load-bearing capacity, effectively distributing and bearing the pressure and stress generated when the hopper carries materials, preventing deformation or damage to the hopper bottom. This design not only improves the hopper's service life but also ensures its safety during transportation and storage, enabling the hopper to reliably carry materials of various sizes and weights.

[0040] When using the iron plate hopper, by pulling the outer frame plate 11 upward, the clamping block 17, guide rod 16, and elastic plate 18 generate compressive force, causing the elastic plate 18 to be further compressed. The clamping block 17 can generate sliding friction with the sawtooth block 13, causing the outer frame plate 11 to rise. After the outer frame plate 11 rises, the clamping block 17 abuts against the sawtooth block 13 under the elastic force of the elastic plate 18. Through the friction between the clamping block 17 and the elastic plate 18, the height of the outer frame plate 11 is fixed. By raising and lowering the outer frame plate 11, the height of the entire iron plate hopper can be adjusted, which is suitable for placing various specifications and models of pipe accessories.

[0041] Example 2: Please refer to Figures 1-10This utility model provides a technical solution: an iron plate hopper, comprising: a hopper body 1 and lifting lugs 3. The hopper body 1 has lifting lugs 3 on both sides of its top, providing lifting points for the hopper, allowing it to be moved and transported using lifting equipment, greatly facilitating the transfer and use of the hopper in different work scenarios. An outer frame plate 11 is provided around the outer perimeter of the hopper body 1. The outer frame plate 11 enhances the structural strength of the hopper body 1, protecting the hopper from damage caused by external impacts, and also provides a basic structure for adjusting the height of the hopper. Lifting relief grooves 12 are provided on both sides of the outer frame plate 11 below the lifting lugs 3. The lifting relief grooves 12 provide space for the lifting and lowering of the outer frame plate 11, allowing it to be lifted upwards when needed, thereby adjusting the overall height of the hopper to accommodate the placement of pipe fittings of different specifications and models. The inner walls on both sides of the lifting relief groove 12 are provided with serrated blocks 13. The serrated blocks 13 cooperate with the locking blocks 17 to fix the height of the outer frame plate 11 through friction, ensuring that the hopper can remain stable after the height is adjusted and will not descend on its own due to external force. The outer wall of the lifting lug 3 is provided with a fixing plate 10. One side of the inner wall of the fixing plate 10 is provided with an elastic piece 18. The elastic piece 18 provides elasticity to the locking block 17, so that the locking block 17 can generate a restoring force when it is squeezed, thereby tightly abutting against the serrated blocks 13 and reliably fixing the height of the outer frame plate 11. One end of the elastic piece 18 is provided with a guide rod 16, and the other end of the guide rod 16 is provided with a locking block 17. The guide rod 16 guides the movement direction of the locking block 17, ensuring that the locking block 17 can accurately cooperate with the serrated blocks 13; the locking block 17 fixes the height of the outer frame plate 11 through the friction with the serrated blocks 13. The outer wall contour of one side of the locking block 17 matches the outer wall contour of the sawtooth block 13. This matching design increases the contact area and friction between the locking block 17 and the sawtooth block 13, allowing the outer frame plate 11 to be more stably fixed in the required position after height adjustment. Guide blocks 15 are provided on both sides of the guide rod 16 on the outer wall of the hopper body 1. The guide blocks 15 provide additional support and guidance for the guide rod 16, ensuring that the guide rod 16 remains stable during movement and does not deviate or wobble, thereby improving the accuracy and reliability of the lifting and lowering of the outer frame plate 11.

[0042] When the outer frame plate 11 is pulled upwards, the locking block 17, guide rod 16, and elastic sheet 18 are subjected to compressive force. The elastic sheet 18 is further compressed, allowing the locking block 17 to generate sliding friction with the serrated block 13, thus raising the outer frame plate 11. When the outer frame plate 11 rises to the desired height and pulling stops, the elastic sheet 18 begins to return to its original shape, generating elastic force. This elastic force acts on the locking block 17, causing the locking block 17 to tightly abut against the serrated block 13.

[0043] Because the outer wall contour of the locking block 17 matches the outer wall contour of the sawtooth block 13, the contact surface between them has a large frictional force. This frictional force is sufficient to resist the downward tendency 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 remain at its adjusted height position and will not fall on its own.

[0044] Because the contact surface contours between the locking 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 also increases accordingly. As long as the frictional force between the locking block 17 and the serrated block 13 is greater than or equal to the downward pressure generated by the weight of the outer frame plate, the outer frame plate will not fall on its own. In actual design, engineers will determine parameters such as the elastic force of the elastic sheet 18 and the roughness of the contact surface between the locking block 17 and the serrated block 13 through calculation and experimentation to ensure that the outer frame plate can stably maintain its height within the normal weight range.

[0045] 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 is in close contact with the top of the flange, and the flange, as the bottom support, provides additional stability and support for the outer frame plate 11.

[0046] The lifting lug 3 has a lifting hole 4 inside, and the four corners of the bottom of the hopper body 1 have drainage holes 2. The drainage holes 2 can drain the water in the hopper or the moisture in the material in time, preventing the material from getting damp and deteriorating or the water inside the hopper from corroding it, thus extending the service life of the hopper.

[0047] The hopper body 1 has supporting channel steels 5 on both sides of its bottom outer wall, and reinforcing ribs 14 in the middle of its bottom outer wall. Multiple reinforcing ribs 14 are arranged in a triangular pattern at the bottom of the hopper body 1. The supporting channel steels 5 enhance the structural strength of the hopper bottom, improve the hopper's load-bearing capacity, and allow the hopper to safely hold and carry materials such as pipe fittings. The triangular arrangement of the reinforcing ribs 14 enhances the overall rigidity and stability of the hopper bottom, preventing deformation or damage when carrying heavy loads and improving the hopper's safety. The triangular arrangement of multiple reinforcing ribs 14 at the bottom of the hopper body 1 significantly enhances the structural strength and stability of the hopper bottom. The triangular structure has excellent mechanical stability and load-bearing capacity, effectively distributing and bearing the pressure and stress generated when the hopper carries materials, preventing deformation or damage to the hopper bottom. This design not only improves the hopper's service life but also ensures its safety during transportation and storage, enabling the hopper to reliably carry materials of various sizes and weights. When using the iron plate hopper, by pulling the outer frame plate 11 upward, the clamping block 17, guide rod 16, and elastic plate 18 generate compressive force, causing the elastic plate 18 to be further compressed. The clamping block 17 can generate sliding friction with the sawtooth block 13, causing the outer frame plate 11 to rise. After the outer frame plate 11 rises, the clamping block 17 abuts against the sawtooth block 13 under the elastic force of the elastic plate 18. Through the friction between the clamping block 17 and the elastic plate 18, the height of the outer frame plate 11 is fixed. By raising and lowering the outer frame plate 11, the height of the entire iron plate hopper can be adjusted, which is suitable for placing various specifications and models of pipe accessories.

[0048] Please refer to the following: Figure 2 The outer frame plate 11 has side plates 6 on both sides at the top. A U-shaped groove 7 is formed in the middle of the side plate 6, and a tightening rope 9 is installed inside the U-shaped groove 7. The side plates 6 provide a mounting base for the tightening rope 9, while the U-shaped groove 7 restricts the range of motion of the tightening rope 9, ensuring that the tightening rope 9 is accurately positioned above the pipe fitting, facilitating subsequent tightening operations. The tightening rope 9 is used to secure the pipe fitting placed in the hopper, preventing it from shaking or falling during transportation or use, thus improving the stability of the pipe fitting.

[0049] A retaining seat 8 is provided on the outer side of the U-shaped groove 7. One end of the tightening rope 9 is fixed to one of the retaining seats 8, and a U-shaped seat 19 is provided on the outer wall of the other retaining seat 8. A tightening device is installed inside the U-shaped seat 19. The retaining seat 8 provides a fixing point for the tightening rope 9, so that the tightening rope 9 can be firmly connected to the hopper. At the same time, the design of the retaining seat 8 also facilitates the adjustment and replacement of the tightening rope 9. The tightening rope 9 can be adjusted and tightened by the tightening device, thereby achieving a firm fixation of the pipe fittings; the U-shaped seat 19 provides installation space for the tightening device.

[0050] The tightening device includes a rotating shaft 20, with both ends of the shaft 20 rotating relative to a U-shaped seat 19. One end of the tightening rope 9 is fixed to the outer wall of the middle section 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. A pawl 22 is rotatably mounted on one side of the U-shaped seat 19. The rotation of the rotating shaft 20 can cause the tightening rope 9 to wind or unwind, thereby achieving the tightening or loosening operation of the pipe fitting. 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 to rotate the rotating shaft 20, making the tightening or loosening operation easier and faster. The cooperation of the ratchet 21 and the pawl 22 restricts the unidirectional rotation of the rotating shaft 20, preventing the tightening rope 9 from loosening on its own due to external force after tightening, thus improving the stability and reliability of the pipe fitting fixation.

[0051] The pawl 22 is connected to the U-shaped seat 19 via a torsion spring shaft. Under the elastic force of the torsion spring shaft, the pawl 22 is always in contact with the ratchet 21. The torsion spring shaft provides elastic support for the pawl 22, enabling the pawl 22 to always be in close contact with the ratchet 21, thereby ensuring the effectiveness of the unidirectional rotation restriction function of the shaft 20.

[0052] The retainer 8 has a smaller diameter in the middle and larger diameters at both ends, with the middle part of the retainer 8 contacting the inner walls of both sides of the U-shaped groove 7. This design allows the retainer 8 to stably fix the tightening rope 9 within the U-shaped groove 7, while the contact between the middle part of the retainer 8 and the inner walls of both sides of the U-shaped groove 7 also increases the stability of the retainer 8, preventing the tightening rope 9 from loosening or falling off during use. It also facilitates the installation and removal of the retainer 8 from the U-shaped groove 7.

[0053] When using the iron plate hopper, by pulling the outer frame plate 11 upward, the guide rod 16 and the elastic plate 18 generate a squeezing force, which further compresses the elastic plate 18. The block 17 can slide and rub against the toothed block 13, causing the outer frame plate 11 to rise. After the outer frame plate 11 rises, the block 17 abuts against the toothed block 13 under the elastic force of the elastic plate 18. The height of the outer frame plate 11 is fixed by the friction between the block 17 and the elastic plate 18. The height of the entire iron plate hopper can be adjusted by raising and lowering the outer frame plate 11. It is suitable for placing various specifications and models of pipe accessories.

[0054] After the pipe fitting is placed inside the iron plate hopper, the height of the clamp 8 in the U-shaped groove 7 is adjusted so that the tightening rope 9 is above the pipe fitting. Then, the handle 23 is turned to drive the rotating shaft 20 and 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 fitting is fixed. After tightening, the rotation of the rotating shaft 20 is limited by the pawl 22 to prevent the tightening rope 9 from loosening and to improve the stability of the pipe fitting when it is placed in the iron plate hopper.

[0055] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. Iron plate hopper, including: The hopper body (1) and the lifting lugs (3) are 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 outer perimeter, the outer frame plate (11) is provided with lifting and yielding grooves (12) on both sides below the lifting lugs (3), the inner walls of the lifting and yielding grooves (12) are provided with serrated blocks (13), the outer wall of the lifting lugs (3) is provided with a fixing plate (10), the inner wall of the fixing plate (10) is provided with an elastic sheet (18) on one side, the elastic sheet (18) is provided with a guide rod (16) at one end, the guide rod (16) is provided with a locking block (17) at one end, the outer wall contour of the locking block (17) matches the outer wall contour of the serrated 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: The lifting lug (3) has a lifting hole (4) inside, and the hopper body (1) has drainage holes (2) at the four corners of the bottom.

3. The iron plate hopper according to claim 1, characterized in that: The bottom outer wall of the hopper body (1) is provided with supporting channel steel (5) on both sides, and the bottom outer wall of the hopper body (1) is provided with reinforcing rib (14) in the middle.

4. The iron plate hopper according to claim 1, characterized in that: The outer frame plate (11) has side plates (6) on both sides at the top, and a U-shaped groove (7) is provided in the middle of the side plate (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: The U-shaped groove (7) is provided with a card seat (8) on the outside. One end of the tightening rope (9) is fixed to one of the card seats (8). The outer wall of the other card seat (8) is provided with a U-shaped seat (19). The U-shaped seat (19) is provided with a tightening device inside.

6. The iron plate hopper according to claim 5, characterized in that: The tightening device includes a rotating shaft (20), with both ends of the rotating shaft (20) rotating relative to 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). One end of the rotating shaft (20) is fixed with a handle (23), and the other end of the rotating shaft (20) is fixed with a ratchet (21). A pawl (22) is rotatably provided on one side of the U-shaped seat (19).

7. The iron plate hopper according to claim 6, characterized in that: The pawl (22) is connected to the U-shaped seat (19) by 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) can contact the top of the flange.

9. The iron plate hopper according to claim 5, characterized in that: The card holder (8) has a small diameter in the middle and a large diameter at both ends. The middle part of the card holder (8) is in contact with 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 multiple reinforcing ribs (14), and the multiple reinforcing ribs (14) are arranged in a triangular shape at the bottom of the hopper body (1).

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