House building construction raw material transfer device and using method thereof

Abstract

The invention discloses a house building construction raw material transfer device and a using method thereof, and relates to the field of constructional engineering. The house building construction raw material transfer device comprises a frame unit used for driving raw material transfer. The material receiving unit is movably arranged on the frame unit and is used for storing and unloading materials; and the expansion cover sealing unit is arranged on the material receiving unit, and is used for expanding the volume of the transfer device so as to improve the transfer efficiency, and is used for sealing the stored materials so as to prevent waste caused by scattering of the materials. According to the house building construction raw material transfer device, the volume of the receiving hopper can be increased by lifting the lifting baffle, then the single-time transfer amount of the raw material transfer device is increased, and then the transfer efficiency is improved; and through a first cover plate and a second cover plate, an opening in the top of the material receiving hopper can be closed, and then the scattering amount of flowing raw materials such as cement paste and concrete in the uphill or downhill process can be reduced.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically to a material transfer device for building construction and its usage method. Background Technology

[0002] In construction engineering, the transfer of building materials is a crucial task, and building material transfer equipment plays a pivotal role, responsible for moving building materials from storage areas to the site of use. Construction sites frequently require the transfer of materials such as sand, cement, gravel, and bricks. If these are carried manually, it is not only time-consuming and labor-intensive, but also very costly and inefficient. Therefore, wheelbarrows remain a commonly used tool in construction.

[0003] Strollers are generally divided into hand strollers and electric strollers, but current electric strollers have the following drawbacks in use:

[0004] 1. The fixed volume of the electric trolley's hopper means that the amount of raw materials such as sand and gravel transferred at one time is fixed, which reduces the transfer efficiency. However, in order to improve the transfer efficiency, the raw materials such as sand and gravel are usually piled up higher than the hopper, which makes it easy for the raw materials such as sand and gravel to spill during the transfer process. This not only wastes the raw materials, but also poses certain safety hazards.

[0005] Second, the open design of the electric cart's receiving hopper causes a large amount of cement slurry, concrete, and other materials to spill out of the hopper when transferring them uphill or downhill, which limits the electric cart's range of use and reduces its flexibility. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a material transfer device for building construction and its usage method. It solves the problems of the fixed volume of the material receiving hopper in electric carts, which results in a fixed quantity transferred per trip when transferring materials such as sand and gravel, reducing transfer efficiency and causing spillage during material transport, leading to material waste and safety hazards. Furthermore, the open design of the electric cart's receiving hopper causes significant spillage of flowing materials such as cement slurry and concrete when transferring them uphill or downhill, limiting the cart's usability and flexibility.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A building construction material transfer device includes:

[0008] A chassis unit, the chassis unit being used to drive the transfer of raw materials;

[0009] A receiving unit is movably mounted on the frame unit and is used for storing and unloading materials.

[0010] An expansion and sealing unit is installed on the receiving unit. It is used to expand the volume of the transfer device to improve the transfer efficiency and to seal the stored materials to prevent them from spilling and causing waste.

[0011] Preferably, the frame unit includes:

[0012] A bottom support frame is provided to support the receiving unit, and a fixing pull ring is provided on the bottom support frame for limiting the position of the transfer device;

[0013] A front wheel assembly, which is located at the front end of the base support frame, is used to adjust the direction of movement of the transfer device;

[0014] A rear wheel assembly, which is located at the rear end of the base support frame and is connected to a drive unit for driving the transfer device to move;

[0015] A support rod is provided at the top of the front end of the base support frame;

[0016] An operating lever is movably mounted on the top of the support rod and connected to the front wheel assembly. It is used to control the speed and direction of the transfer device.

[0017] Preferably, the receiving unit includes:

[0018] A receiving hopper, which is mounted on a base support frame;

[0019] A snap-fit ​​assembly is disposed at the front end of the receiving hopper and is used for fixing and flipping the receiving hopper;

[0020] A connector is fixedly connected to the bottom rear end of the receiving hopper and is rotatably connected to the bottom support frame.

[0021] Preferably, the receiving hopper has a U-shaped groove, and the top of the rear end of the receiving hopper has a first T-shaped groove and a second T-shaped groove. The first T-shaped groove is opened horizontally, and the second T-shaped groove is opened obliquely downward, with its angle consistent with the discharge slope angle of the receiving hopper.

[0022] Preferably, the snap-fit ​​assembly includes:

[0023] A crossbar, one end of which is fixedly connected to the receiving hopper;

[0024] The hook has its top end rotatably connected to the bottom of the crossbar, and its bottom end engages with the fixed pull ring.

[0025] A spring, one end of which is fixedly connected to the receiving hopper and the other end of which is connected to a hook;

[0026] A rotating handle, which is fixedly connected to the other side of the hook, is used to drive the hook to separate from the fixed pull ring.

[0027] Preferably, the expansion and capping unit includes:

[0028] A lifting baffle is provided, which is U-shaped and slidably connected in the U-shaped groove. The lifting baffle is provided with a fastener to limit the rotation of the first cover plate.

[0029] The first cover plate is provided in two pieces, and the support is provided on the inner side of both ends of the lifting baffle. The first cover plate is rotatably connected to the lifting baffle.

[0030] The second cover plate abuts against the first cover plate;

[0031] A drive assembly is disposed on the receiving hopper and connected to a lifting baffle, which is used to adjust the lifting and lowering of the lifting baffle.

[0032] Preferably, a cylindrical block is fixedly connected to the bottom of the first cover plate, and a rotating shaft is rotatably connected inside the cylindrical block, with both ends of the rotating shaft fixedly connected to the receiving hopper;

[0033] A slot is provided on one side of the top of the first cover plate.

[0034] Preferably, the second cover plate is provided with T-shaped sliders on both sides, the T-shaped sliders can slide in the first T-shaped groove and the second T-shaped groove, and a fastening bolt is threaded to one side of the T-shaped slider for fixing the position of the T-shaped slider;

[0035] The front end of the second cover plate is provided with a locking block, and the locking block slider is engaged in the locking groove.

[0036] Preferably, the driving component includes:

[0037] The motor is located on the outside of the receiving hopper.

[0038] A rotating rod, which is fixedly connected to the output end of the motor;

[0039] The worm gear is provided in multiple configurations, and the multiple worm gears are fixedly sleeved on the rotating rod;

[0040] The worm gear is provided in multiple configurations and is respectively meshed with multiple worms;

[0041] A threaded rod, the bottom of which is fixedly connected to a worm gear and threadedly connected to a receiving hopper, the rotation of which drives the receiving hopper to move up and down.

[0042] A method of using a building construction material transfer device, the method comprising the following steps:

[0043] Step 1: Add the raw materials into the receiving unit, and the receiving unit completes the storage of the raw materials;

[0044] Step 2: The frame unit drives the receiving unit to the required position, and then the receiving unit unloads the raw materials;

[0045] Step 3: When the single transfer capacity of the receiving unit is insufficient, it is necessary to expand the capacity by using the expansion and sealing unit to increase the single transfer capacity and thus improve the transfer efficiency.

[0046] Step 4: When the receiving unit transfers flowing raw materials, it is necessary to seal the receiving unit through the expansion and sealing unit to reduce spillage during transportation and thus reduce material waste.

[0047] This invention discloses a material transfer device for building construction and its usage method, which has the following beneficial effects:

[0048] 1. This building construction material transfer device, by setting up an expansion and sealing unit, drives the lifting baffle to move upward through the drive component, thereby expanding the height of the receiving hopper and increasing its volume. This increases the single transfer capacity of the material transfer device, thus improving the transfer efficiency. Furthermore, the lifting baffle reduces the spillage of materials such as sand and gravel during transfer, reducing material waste. The height of the lifting baffle is also adjustable, allowing users to adjust the volume of the receiving hopper according to the amount of materials transferred at one time, improving the flexibility of the transfer device.

[0049] 2. This building construction material transfer device, by setting a rotatable first cover plate inside the lifting baffle and a second cover plate at the top of the rear end of the receiving hopper, allows the first cover plates on both sides to be closed when transferring fluid materials such as cement slurry and concrete. The second cover plate is then slidably connected to the top of the receiving hopper, with its locking blocks engaging in the slots of the first cover plate. Finally, the fastening bolts on both sides are tightened to close the top opening of the receiving hopper. This reduces the amount of fluid materials such as cement slurry and concrete spilling when going uphill or downhill, as well as on bumpy roads. This not only increases the applicability of the transfer device but also reduces production costs.

[0050] 3. The building construction material transfer device is equipped with a removable second cover plate, which allows the second cover plate to be installed diagonally downward at the slope outlet of the receiving hopper when it is not sealed, thereby increasing the length of the slope to facilitate the sliding in of bagged cement or heavy objects. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0053] Figure 2 This is a schematic diagram of the frame unit structure in this embodiment;

[0054] Figure 3 This is a schematic diagram of the receiving unit structure in this embodiment;

[0055] Figure 4 This is a schematic diagram of the initial structure of the expansion and capping unit in this embodiment;

[0056] Figure 5 This is a schematic diagram of the capping structure of the expansion capping unit in this embodiment;

[0057] Figure 6 This is a schematic diagram of the connection structure between the first cover plate and the second cover plate in this embodiment;

[0058] Figure 7 This is a schematic diagram of the driver component structure in this embodiment.

[0059] In the diagram: 1. Frame unit; 11. Base support frame; 111. Fixing pull ring; 12. Front wheel assembly; 13. Rear wheel assembly; 14. Support rod; 15. Operating lever; 2. Receiving unit; 21. Receiving hopper; 211. First T-slot; 212. Second T-slot; 22. Snap-fit ​​assembly; 221. Crossbar; 222. Hook; 223. Spring; 224. Rotating handle; 23. Connecting piece; 3. Expansion cover unit; 31. Lifting baffle; 311. Fastener; 32. First cover plate; 321. Columnar block; 322. Rotating shaft; 323. Slot; 33. Second cover plate; 331. T-shaped slider; 332. Locking block; 34. Drive assembly; 341. Motor; 342. Rotating rod; 343. Worm gear; 344. Worm wheel; 345. Threaded rod. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] This application provides a construction material transfer device and its usage method, which solves the problems of the fixed volume of the receiving hopper 21 of the electric cart, which results in a fixed quantity of materials transferred at one time when the electric cart transfers materials such as sand and gravel, reducing transfer efficiency, and the easy spillage of materials during material transfer, which not only wastes materials but also poses certain safety hazards. In addition, the open design of the receiving hopper 21 of the electric cart causes a large amount of cement slurry, concrete and other materials to flow out and spill when the electric cart transfers flowing materials such as cement slurry and concrete on uphill or downhill slopes, which limits the scope of use of the electric cart and reduces its flexibility.

[0062] By setting up the expansion sealing unit 3 and raising the lifting baffle 31, the volume of the receiving hopper 21 can be increased, thereby increasing the single transfer volume of the raw material transfer device and thus improving the transfer efficiency; and by using the first cover plate 32 and the second cover plate 33, the top opening of the receiving hopper 21 can be closed, thereby reducing the amount of spillage of flowing raw materials such as cement slurry and concrete when going uphill or downhill.

[0063] This invention discloses a material transfer device for building construction and its usage method.

[0064] Example 1:

[0065] According to the appendix Figure 1-7 As shown, it includes:

[0066] Chassis unit 1, chassis unit 1 is used to drive the transfer of raw materials;

[0067] Material receiving unit 2 is movably mounted on frame unit 1 and is used for material storage and unloading.

[0068] The expansion and sealing unit 3 is installed on the receiving unit 2. It is used to expand the volume of the transfer device to improve the transfer efficiency and to seal the stored materials to prevent the materials from spilling and causing waste.

[0069] Furthermore, the frame unit 1 includes:

[0070] The bottom support frame 11 is used to support the receiving unit 2. The bottom support frame 11 is provided with a fixed pull ring 111, which is used to limit the transfer device.

[0071] The front wheel assembly 12 is located at the front end of the base support frame 11 and is used to adjust the direction of movement of the transfer device;

[0072] The rear wheel assembly 13 is located at the rear end of the base support frame 11 and is connected to the drive unit, which is used to drive the transfer device to move.

[0073] Support rod 14 is provided at the top of the front end of the bottom support frame 11;

[0074] The operating lever 15 is movably mounted on the top of the support rod 14 and is connected to the front wheel assembly 12. It is used to control the speed and direction of the transfer device.

[0075] Furthermore, the receiving unit 2 includes:

[0076] The receiving hopper 21 is installed on the bottom support frame 11;

[0077] The snap-fit ​​assembly 22 is located at the front end of the receiving hopper 21 and is used for fixing and flipping the receiving hopper 21.

[0078] Connector 23 is fixedly connected to the bottom rear end of receiving hopper 21 and is rotatably connected to bottom support frame 11.

[0079] Specifically disclosed, the receiving hopper 21 has a U-shaped groove, and the top of the rear end of the receiving hopper 21 has a first T-shaped groove 211 and a second T-shaped groove 212. The first T-shaped groove 211 is opened horizontally, and the second T-shaped groove 212 is opened obliquely downward, with its angle consistent with the discharge slope angle of the receiving hopper 21.

[0080] Furthermore, the snap-fit ​​component 22 includes:

[0081] A crossbar 221, one end of which is fixedly connected to the receiving hopper 21;

[0082] Hook 222, the top of hook 222 is rotatably connected to the bottom of crossbar 221, and the bottom of hook 222 is engaged with fixed pull ring 111;

[0083] Spring 223, one end of spring 223 is fixedly connected to the receiving hopper 21, and the other end is connected to the hook 222;

[0084] Rotate handle 224, which is fixedly connected to the other side of hook 222. It is used to drive hook 222 to separate from fixed pull ring 111. By pressing rotate handle 224, hook 222 can be rotated, thereby separating hook 222 from fixed pull ring 111. Then, through crossbar 221, the receiving hopper 21 can be flipped to unload material.

[0085] Example 2:

[0086] According to the appendix Figure 1-7 As shown, it includes:

[0087] Chassis unit 1, chassis unit 1 is used to drive the transfer of raw materials;

[0088] Material receiving unit 2 is movably mounted on frame unit 1 and is used for material storage and unloading.

[0089] The expansion and sealing unit 3 is installed on the receiving unit 2. It is used to expand the volume of the transfer device to improve the transfer efficiency and to seal the stored materials to prevent the materials from spilling and causing waste.

[0090] Specifically disclosed, the expanded capping unit 3 includes:

[0091] The lifting baffle 31 is U-shaped and is slidably connected in the U-shaped groove. The lifting baffle 31 is provided with a fastener 311, which is used to restrict the rotation of the first cover plate 32.

[0092] The first cover plate 32 is provided in two pieces, and the two ends of the lifting baffle 31 are supported and rotatably connected to the lifting baffle 31.

[0093] The second cover plate 33 abuts against the first cover plate 32;

[0094] The drive assembly 34 is mounted on the receiving hopper 21 and connected to the lifting baffle 31. The drive assembly 34 adjusts the lifting of the lifting baffle 31, causing it to move upwards and thus increasing the height of the receiving hopper 21, thereby increasing its volume and the single-transfer capacity of the raw material transfer device, and ultimately improving transfer efficiency. Furthermore, the lifting baffle 31 reduces the spillage of sand, gravel, and other raw materials during transfer, minimizing waste. The height of the lifting baffle 31 is adjustable, allowing users to adjust the volume of the receiving hopper 21 according to the quantity of raw materials transferred at one time, thus improving the flexibility of the transfer device.

[0095] Furthermore, a cylindrical block 321 is fixedly connected to the bottom of the first cover plate 32, and a rotating shaft 322 is rotatably connected inside the cylindrical block 321. Both ends of the rotating shaft 322 are fixedly connected inside the receiving hopper 21.

[0096] A slot 323 is provided on one side of the top of the first cover plate 32.

[0097] Specifically disclosed, T-shaped sliders 331 are provided on both sides of the second cover plate 33. The T-shaped sliders 331 can slide in the first T-shaped groove 211 and the second T-shaped groove 212. A fastening bolt is threaded to one side of the T-shaped slider 331, which is used to fix the position of the T-shaped slider 331. By providing a second cover plate 33 that can be installed and removed, the second cover plate 33 can be installed obliquely downward at the slope outlet of the receiving hopper 21 when it is not covered, thereby increasing the length of the slope to facilitate the sliding in of bagged cement or heavy objects.

[0098] The front end of the second cover plate 33 is provided with a locking block 332. The slider of the locking block 332 is engaged in the slot 323. By setting a rotatable first cover plate 32 in the lifting baffle 31 and a second cover plate 33 at the top of the rear end of the receiving hopper 21, the first cover plates 32 on both sides can be closed when transferring liquid materials such as cement slurry and concrete. Then, the second cover plate 33 is laterally slidably connected to the top of the receiving hopper 21, so that the locking block 332 of the second cover plate 33 is engaged in the slot 323 of the first cover plate 32. Then, the fastening bolts on both sides are tightened to close the top opening of the receiving hopper 21. This reduces the amount of liquid materials such as cement slurry and concrete spilling when going uphill or downhill, as well as on bumpy roads. This not only improves the application range of the transfer device, but also reduces production costs.

[0099] Furthermore, the driver component 34 includes:

[0100] Motor 341, motor 341 is located on the outside of the receiving hopper 21

[0101] Rotating rod 342 is fixedly connected to the output end of motor 341;

[0102] Worm 343, multiple worms 343 are provided, and multiple worms 343 are fixedly sleeved on rotating rod 342;

[0103] Worm gears 344, multiple worm gears 344 are configured, and each worm gear 344 is meshed with multiple worms 343;

[0104] The threaded rod 345 is fixedly connected to the worm gear 344 at its bottom and is threadedly connected to the receiving hopper 21. The rotation of the threaded rod 345 is used to drive the receiving hopper 21 to move up and down. The drive motor 341 drives the rotating rod 342 to rotate, which in turn drives multiple worm gears 343 to rotate, which in turn drives multiple worm gears 344 to rotate, which in turn drives multiple threaded rods 345 to rotate, which in turn drives the lifting baffle 31 to move up and down.

[0105] A method for using a building construction material transfer device, the method comprising the following steps:

[0106] Step 1: Add the raw materials into receiving unit 2, and complete the storage of the raw materials through receiving unit 2;

[0107] Step 2: The frame unit 1 drives the receiving unit 2 to the required position, and then the receiving unit 2 unloads the raw materials;

[0108] Step 3: When the single transfer volume of receiving unit 2 is insufficient, it is necessary to expand the capacity through expansion and sealing unit 3 to increase the single transfer volume and thus improve the transfer efficiency.

[0109] Step 4: When receiving unit 2 transfers flowing raw materials, it is necessary to seal receiving unit 2 through expansion and sealing unit 3 to reduce spillage during transportation and thus reduce raw material waste.

[0110] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A device for transferring building construction materials, characterized in that, include: A frame unit (1) is used to drive the transfer of raw materials; Material receiving unit (2), which is movably mounted on the frame unit (1), is used for material storage and unloading; The expansion and sealing unit (3) is installed on the receiving unit (2) and is used to expand the volume of the transfer device and to seal the stored materials.

2. The building construction material transfer device according to claim 1, characterized in that, The frame unit (1) includes: A bottom support frame (11) is provided to support the receiving unit (2). A fixed pull ring (111) is provided on the bottom support frame (11) for limiting the position of the transfer device. A front wheel assembly (12) is disposed at the front end of the base support frame (11) and is used to adjust the direction of movement of the transfer device; The rear wheel assembly (13) is disposed at the rear end of the base support frame (11) and is connected to the drive unit for driving the transfer device to move. Support rod (14), the support rod (14) is disposed at the top of the front end of the bottom support frame (11); The operating lever (15) is movably disposed on the top of the support rod (14) and is connected to the front wheel assembly (12), and is used to control the speed and direction of the transfer device.

3. The building construction material transfer device according to claim 2, characterized in that, The receiving unit (2) includes: A receiving hopper (21) is mounted on a base support frame (11); A snap-fit ​​assembly (22) is provided at the front end of the receiving hopper (21) and is used for fixing and flipping the receiving hopper (21); Connector (23), which is fixedly connected to the bottom of the rear end of the receiving hopper (21) and is rotatably connected to the bottom support frame (11).

4. The building construction material transfer device according to claim 3, characterized in that, The receiving hopper (21) is provided with a U-shaped groove, and the top of the rear end of the receiving hopper (21) is provided with a first T-shaped groove (211) and a second T-shaped groove (212). The first T-shaped groove (211) is opened horizontally, and the second T-shaped groove (212) is opened obliquely downward, with its angle consistent with the discharge slope angle of the receiving hopper (21).

5. A building construction material transfer device according to claim 3, characterized in that, The snap-fit ​​assembly (22) includes: A crossbar (221), one end of which is fixedly connected to the receiving hopper (21); The top end of the hook (222) is rotatably connected to the bottom of the crossbar (221), and the bottom end of the hook (222) is engaged with the fixed pull ring (111). A spring (223), one end of which is fixedly connected to the receiving hopper (21), and the other end of which is connected to the hook (222); Rotate handle (224), which is fixedly connected to the other side of hook (222) and is used to drive hook (222) to separate from fixed pull ring (111).

6. A building construction material transfer device according to claim 4, characterized in that, The expansion capping unit (3) includes: A lifting baffle (31) is provided, which is U-shaped and is slidably connected in the U-shaped groove. A fastener (311) is provided on the lifting baffle (31) to restrict the rotation of the first cover plate (32). The first cover plate (32) is provided in two pieces, and the support is provided on the inner side of both ends of the lifting baffle (31). The first cover plate (32) is rotatably connected to the lifting baffle (31). The second cover plate (33) abuts against the first cover plate (32); A drive assembly (34) is disposed on the receiving hopper (21) and is connected to a lifting baffle (31), which is used to adjust the lifting of the lifting baffle (31).

7. A building construction material transfer device according to claim 6, characterized in that, A cylindrical block (321) is fixedly connected to the bottom of the first cover plate (32), and a rotating shaft (322) is rotatably connected inside the cylindrical block (321). Both ends of the rotating shaft (322) are fixedly connected inside the receiving hopper (21). A slot (323) is provided on one side of the top of the first cover plate (32).

8. A building construction material transfer device according to claim 7, characterized in that, The second cover plate (33) is provided with T-shaped sliders (331) on both sides. The T-shaped sliders (331) can slide in the first T-shaped groove (211) and the second T-shaped groove (212). A fastening bolt is threaded on one side of the T-shaped sliders (331) for fixing the position of the T-shaped sliders (331). The front end of the second cover plate (33) is provided with a locking block (332), and the sliding block (332) is engaged in the locking groove (323).

9. A building construction material transfer device according to claim 6, characterized in that, The driving component (34) includes: Motor (341), said motor (341) is located on the outside of the receiving hopper (21). A rotating rod (342) is fixedly connected to the output end of a motor (341); A worm (343), wherein multiple worms (343) are provided, and multiple worms (343) are fixedly sleeved on a rotating rod (342); Worm gears (344), wherein multiple worm gears (344) are configured and respectively mesh with multiple worms (343); A threaded rod (345) is fixedly connected to a worm gear (344) at its bottom and threadedly connected to a receiving hopper (21). The rotation of the threaded rod (345) is used to drive the receiving hopper (21) to move up and down.

10. A method of using a building construction material transfer device according to any one of claims 1-9, characterized in that, The method of use includes the following steps: Step 1: Add the raw materials into the receiving unit (2) to complete the storage of the raw materials; Step 2: The frame unit (1) drives the receiving unit (2) to the required position, and then the receiving unit (2) unloads the raw materials; Step 3: When the single transfer volume of the receiving unit (2) is insufficient, it is necessary to expand the capacity through the expansion and sealing unit (3) to increase the single transfer volume and thus improve the transfer efficiency. Step 4: When the receiving unit (2) transfers the flowing raw materials, it is necessary to seal the receiving unit (2) through the expansion and sealing unit (3) to reduce the amount of spillage during transportation and thus reduce the waste of raw materials.

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