Concrete pouring device

Abstract

The application discloses a concrete pouring device, which comprises a hopper, a first hopper, a second hopper slidably sleeved in the first hopper, a locking piece for fixing the second hopper in the first hopper, a pair of stand columns arranged on two sides of the first hopper, a support rod arranged on the side wall of the first hopper and close to each stand column, one end of the support rod being fixedly connected with the side wall of the first hopper and the other end being rotatably connected with the stand column, and one end of one support rod penetrating through the stand column, and a lifting ring arranged on the top of the stand column. The application has the beneficial effects that the device is convenient to clean, the second hopper can be replaced according to the situation, the device is convenient to use and operate, and the construction efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of building construction. More specifically, this invention relates to a concrete pouring apparatus. Background Technology

[0002] In building construction, concrete is typically poured into formwork to form walls, columns, and other structures. Concrete pouring equipment is usually required for this process. A concrete pouring hopper is one type of concrete pouring equipment. The process involves adding concrete into the hopper, which then flows out through the hopper opening into the formwork to be poured. However, existing concrete pouring hoppers are cumbersome and inconvenient to clean after use because they are usually vertically positioned. Cleaning requires personnel to pump high-pressure water into the hopper from the top, and the hopper must be thoroughly cleaned before it can be reused. Summary of the Invention

[0003] One object of the present invention is to solve at least the above-mentioned problems and to provide a concrete pouring device in which, after the concrete pouring device is used up, the support rod is rotated to rotate the hopper to a convenient position for operation, and then the fixed relationship between the first hopper and the second hopper is released, and the second hopper is taken out from the first hopper for cleaning. At the same time, a new second hopper can be replaced as needed and installed in the first hopper. The device is convenient to use and operate, and improves construction efficiency.

[0004] To achieve these objectives and other advantages according to the present invention, a concrete pouring apparatus is provided, comprising:

[0005] The hopper includes a first hopper, a second hopper slidably fitted inside the first hopper, and a locking member, wherein the locking member is used to fix the second hopper inside the first hopper;

[0006] A pair of uprights are provided on both sides of the first hopper. Each pair of uprights is provided with a support rod near the side wall of the first hopper. One end of the support rod is fixed to the side wall of the first hopper, and the other end is rotatably connected to the upright. One end of one of the support rods extends out of the upright. The top of the upright is provided with a lifting ring.

[0007] Preferably, the first hopper includes a first hopper body and a first discharge pipe that are connected from top to bottom; it also includes a baffle that is movably sleeved on the outer wall of the first discharge pipe.

[0008] Preferably, the second hopper includes a second hopper body and a second discharge pipe connected from top to bottom; the baffle has a mounting hole in the middle, the inner wall of the mounting hole has a pair of opposing fixing blocks, and the side walls of the pair of fixing blocks have rebound blocks; the outer wall of the first discharge pipe has a vertical channel for the passage of the fixing blocks, the bottom of the channel is connected to the outside, the outer wall of the second discharge pipe has a vertical groove, the bottom of the groove near the top extends towards the center of the second discharge pipe to form a horizontal slot, the side wall at the lowest point of the slot is an inclined side wall, the lower end of the inclined side wall is away from the central axis of the second discharge pipe, the rebound block rolls along the groove, the slot is adapted to the rebound block, so that when the second hopper slides along the first hopper to the lowest point and the locking member is fixed, when the rebound block slides along the groove to the slot, the rebound block is locked into the slot.

[0009] Preferably, the edge of the baffle is curved upwards.

[0010] Preferably, the first discharge pipe is provided with a baffle, which forms an upward-facing mounting groove with the inner wall of the first discharge pipe. The bottom of the mounting groove is provided with multiple spring springs, and the bottom of the second discharge pipe is pressed against the spring springs. When the locking member releases the fixing relationship between the first hopper and the second hopper, the second hopper is pushed upward under the rebound action of the multiple spring springs.

[0011] Preferably, it also includes a discharge regulating pipe, which includes a vertical connecting pipe rotatably connected to the mounting groove and a steering pipe communicating with the connecting pipe. The connecting pipe and the steering pipe form an obtuse angle so as to adjust the orientation of the steering pipe when the connecting pipe is rotated.

[0012] Preferably, the steering pipe is rotatably connected to the connecting pipe, the connecting pipe is screwed to the mounting groove, and an annular auxiliary block is coaxially provided on the top of the connecting pipe. The connecting pipe is rotatably connected to the auxiliary block. The system also includes a control assembly, which comprises a pair of vertical push rods and a pair of horizontal cover plates corresponding to the push rods. The cover plates are hinged to the inner wall of the second discharge pipe to open / close the second discharge pipe. One end of each push rod contacts the bottom of the corresponding cover plate, and the other end is fixed to the top of the auxiliary block, so that when the connecting pipe is screwed in / out, it drives the cover plates to close / open the second discharge pipe.

[0013] Preferably, a circular mounting block is coaxially provided inside the second discharge pipe, the outer circumference of the mounting block is fixedly connected to the inner wall of the second discharge pipe, and a discharge hole is provided on the mounting block, the bottom end of the discharge hole being square; it also includes a positioning block, both ends of the positioning block are fixedly connected to the inner wall of the discharge hole, the bottom end of the positioning block extends out of the discharge hole, and a pair of cover plates are respectively hinged to the two ends of the bottom of the mounting block. When the pair of cover plates rotate to the top and contact the bottom of the positioning block, the pair of cover plates close the discharge hole.

[0014] Preferably, the discharge hole has a structure that is larger at the top and smaller at the bottom.

[0015] Preferably, the top of the second bucket is provided with a handle.

[0016] The present invention has at least the following beneficial effects:

[0017] By designing a first hopper, a second hopper, locking components, columns, support rods, and lifting rings, when pouring is required, the second hopper is fixed inside the first hopper using the locking components. Then, with the help of a crane and lifting rings, the pouring hopper is lifted to the appropriate position, and concrete is added to the second hopper to pour concrete into the formwork. When pouring is complete and the next operation is needed, external force rotates the support rod to rotate the hopper to a convenient operating position (such as horizontal). Then, the locking components release the fixing relationship between the first and second hoppers, and the second hopper is removed from the first hopper for separate cleaning. At this time, other spare second hoppers can be reinstalled inside the first hopper for the next concrete pouring. Overall, this design is convenient for cleaning, operation, and use, improving construction efficiency.

[0018] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the concrete pouring device according to one of the technical solutions of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the concrete pouring device according to one of the technical solutions of the present invention when the second hopper is ejected;

[0021] Figure 3 This is a schematic diagram of the concrete pouring device in operation according to one of the technical solutions of the present invention;

[0022] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 5 for Figure 1 Enlarged view at point B in the middle;

[0024] Figure 6 Figure 1 Enlarged view of point C.

[0025] Reference numerals: 1-First hopper; 101-First discharge pipe; 102-Channel; 2-Second hopper; 201-Second discharge pipe; 3-Column; 4-Lifting ring; 5-Support rod; 6-Handle; 7-Positioning block; 8-Push rod; 9-Cover plate; 10-Mounting block; 11-Baffle; 12-Clamping block; 13-Mounting cavity; 14-Connecting pipe; 15-Steering pipe; 16-Second return spring; 17-Auxiliary block; 18-First slide groove; 19-Clamping groove; 20-Mounting plate; 21-Bolt; 22-Threaded groove; 23-Pulley; 24-Second slide groove; 25-Rotating handle; 26-Roller; 27-Stop block; 28-First return spring; 29-Guide column; 30-Discharge hole; 31-Fixing block. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0027] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0028] like Figure 1-6 As shown, the present invention provides a concrete pouring device, comprising:

[0029] The hopper includes a first hopper 1, a second hopper 2 slidably sleeved inside the first hopper 1, and a locking member, wherein the locking member is used to fix the second hopper 2 inside the first hopper 1;

[0030] A pair of uprights 3 are respectively arranged on both sides of the first hopper 1. Each pair of uprights 3 is provided with a support rod 5 near the side wall of the first hopper 1. One end of the support rod 5 is fixed to the side wall of the first hopper 1, and the other end is rotatably connected to the upright 3. One end of one of the support rods 5 passes through the upright 3. The top of the upright 3 is provided with a lifting ring 4.

[0031] In the above technical solution, both the first hopper 1 and the second hopper 2 are hopper-shaped structures commonly known to those skilled in the art. A valve may or may not be installed at the discharge port of the second hopper 2, depending on the actual situation. If a valve is installed, an electric valve (not shown in the figure, controlled by an external remote control) can be installed to control whether concrete flows out, or a hinged door can be directly connected to the discharge port of the second hopper to cover the discharge port. In actual use, the design is based on the specific circumstances. The discharge port of the second hopper 2 is equipped with a valve for... To control whether concrete flows out; the first hopper 1 includes a first hopper body and a first discharge pipe 101 connected from top to bottom. The second hopper 2 is slidably connected to the first hopper 1 in the following ways: the second hopper 2 is directly inserted into the first hopper 1, or the outer wall of the second hopper 2 is provided with a pulley 23, and the inner wall of the first hopper body is vertically provided with a groove adapted to the pulley 23. This groove is a second groove 24, and the top of the second groove 24 is open to communicate with the outside, so that the pulley 23 can enter the second groove 24 from the open. Figure 1 , 4 As shown, the locking component includes two sets of locking assemblies, which are respectively disposed at both ends of the top of the hopper. Each locking assembly includes a support plate 20 horizontally connected to the top of the second hopper 2, a threaded groove 22 on the outer wall of the first hopper, and a bolt 21 screwed onto the support plate 20. When the bottom of the bolt 21 is screwed into the threaded groove 22, the first hopper 1 and the second hopper 2 are fixed. A pair of support rods 5 correspond to a pair of columns 3. The ends of the pair of support rods 5 that are close to each other are fixed to the outer wall of the first hopper 1, and the other ends are rotatably connected to the corresponding columns 3. One end of one of the support rods 5 rotates out of the column 3. The protruding end of the support rod 5 can be connected to a rotating handle 25, or it can be directly driven by a motor. In actual use, the choice is made according to the situation. Each column 3 is provided with a lifting ring 4 at the top.

[0032] In this technical solution, when pouring is required, the second hopper 2 is fixed inside the first hopper 1 with locking devices. Then, with the help of a crane and lifting ring 4, the pouring hopper is lifted to the corresponding position. Concrete is then added into the second hopper 2, and concrete can be poured into the formwork. When the pouring is completed and the next operation is needed, external force (motor drive or) rotates the support rod 5 to rotate the hopper to a position that is easy to operate (such as horizontal). Then, the fixing relationship between the first hopper 1 and the second hopper 2 is released by locking devices, and the second hopper 2 is removed from the first hopper 1 for cleaning. At this time, other spare second hoppers 2 can be reinstalled in the first hopper 1 for the next concrete pouring.

[0033] The beneficial effects of adopting this technical solution are that by designing the first hopper 1, the second hopper 2, the locking parts, the column 3, the support rod 5, and the lifting ring 4, it is not only convenient to clean the hoppers, but also easy to operate and use, thus improving construction efficiency.

[0034] In another technical solution, the first hopper 1 includes a first hopper body and a first discharge pipe 101 connected from top to bottom; it also includes a baffle 11, which is movably sleeved on the outer wall of the first discharge pipe 101. The baffle 11 can be movably sleeved on the outer wall of the first discharge pipe 101 by screw connection. The beneficial effect of this technical solution is that by designing the baffle 11, the splashed concrete can be blocked as much as possible during the pouring of concrete, reducing the phenomenon of concrete flying out of the formwork or splashing onto the construction workers.

[0035] In another technical solution, the second hopper 2 includes a second hopper body and a second discharge pipe 201 connected from top to bottom; the baffle 11 has a mounting hole in the middle, and the inner wall of the mounting hole is provided with a pair of opposing fixing blocks 31, and the side walls of the pair of fixing blocks 31 are provided with spring blocks; the outer wall of the first discharge pipe 101 is provided with a vertical channel 102 for the passage of the fixing blocks 31, the bottom of the channel 102 is connected to the outside, and the outer wall of the second discharge pipe 201 is provided with a vertical sliding groove. The bottom of the groove near the top extends towards the center of the second discharge pipe 201 to form a horizontal slot 19. The side wall at the lowest point of the slot 19 is an inclined side wall. The lower end of the inclined side wall is far away from the central axis of the second discharge pipe 201. The rebound block rolls along the slide. The slot 19 is adapted to the rebound block so that when the second hopper 2 slides along the first hopper 1 to the lowest point and the locking member is fixed, the rebound block slides along the slide to the slot 19 and the rebound block is locked into the slot 19.

[0036] In the above technical solution, a pair of fixed blocks 31 are provided with rebound blocks on their opposite sidewalls. The pair of rebound blocks are arranged opposite each other and are symmetrical about the central axis of the second discharge pipe 201. The structure of the rebound blocks can be as follows: a horizontal mounting cavity 13 is opened in the opposite sidewall of the pair of fixed blocks 31, and a through hole is opened in the opposite sidewall of the pair of mounting cavities 13. A vertical stop block 27 is provided in the mounting cavity 13. A horizontal first rebound spring 28 is provided between the stop block 27 and the sidewall of the mounting cavity 13 away from the through hole. One end of the first rebound spring 28 is fixedly connected to the stop block 27, and the other end is fixedly connected to the corresponding sidewall of the mounting cavity 13. Guide posts 29 are slidably passed through both ends of the stop block 27. One end of the guide post 29 is connected to the sidewall of the through hole. The side wall of the mounting cavity 13 is fixedly connected, and the other end is fixedly connected to the side wall of the mounting cavity 13 away from the through hole. When the first return spring 28 contracts, the stop block 27 moves along the guide post 29 to prevent the stop block 27 from having a large vertical displacement in the mounting cavity 13. The side of the stop block 27 away from the first return spring 28 is provided with a horizontal locking block 12, and the end of the locking block 12 away from the stop block 27 is provided with a roller 26. The outer wall of the first discharge pipe 101 is provided with a channel 102, and the bottom of the channel 102 is connected to the outside, so that the fixing block 31 can enter the channel 102 from the bottom of the channel 102 and pass through the fixing block 31. The outer wall of the second discharge pipe 201 is provided with a sliding groove, which is the second sliding groove 24. The second sliding groove 24 is vertically arranged, such as Figure 6 As shown, the bottom of the second chute 24 near its top extends towards the central axis of the second discharge pipe 201 to form a slot 19. The side wall of the slot 19 at its bottom is an inclined wall, and the lower end of the inclined wall is far away from the central axis of the second discharge pipe 201. The roller 26 moves along the second chute 24. When the roller 26 moves to the slot 19, under the rebound action of the first rebound spring 28, the roller 26 and the locking block 12 extend together and are locked into the slot 19. At this time, the baffle 11 is fixed relative to the second discharge pipe 201.

[0037] In this technical solution, during installation, the second hopper 2 is first inserted into the first hopper 1 and fixed with locking components. Then, the fixing block 31 of the baffle 11 is moved from the bottom of the channel 102 into the channel 102. At this time, the roller 26 slides along the first slide groove 18. When the roller 26 moves to the slot 19, under the rebound action of the first return spring 28, the roller 26 and the locking block 12 extend together and are locked into the slot 19. At this time, the baffle 11 is fixed relative to the second discharge pipe 201. After the concrete is poured, it is necessary to... When cleaning the hopper, unscrew the bolt 21 from the nut. At this time, the fixed relationship between the second hopper 2 and the first hopper 1 is released. Then, pull the second hopper 2 out of the first hopper 1. As the slot 19 moves upward, the roller 26 moves along the inclined wall of the slot 19 to the first slide 18. At this time, the fixed relationship between the baffle 11 and the second discharge pipe 201 is released, and it moves along the first slide 18 under the action of gravity and falls off the second discharge pipe 201 by itself. At this time, the second hopper 2 and the baffle 11 can be cleaned for convenient subsequent use.

[0038] The beneficial effects of adopting this technical solution are that, by designing the second hopper, the second discharge pipe 201, the mounting hole, the fixing block 31, the spring block, the channel 102, the first sliding groove 18, and the slot 19, a structure is provided in which the baffle 11 and the first discharge pipe 101 are movably fitted together. When the second hopper 2 is taken out, the baffle 11 can be driven to fall off by itself, and the baffle 11 and the second hopper 2 can be cleaned at the same time, saving the disassembly time of the baffle 11 and making it convenient to use.

[0039] In another technical solution, the edge portion of the baffle 11 curves upwards, such as... Figures 1-3 As shown, the portion of the baffle 11 away from the center curves upward to form an inclined plate. The lower end of the plate is close to the center of the baffle 11, that is, the edge of the baffle 11 curves upward. This design helps to block splashed concrete and guide it to the vicinity of the hopper outlet.

[0040] In another technical solution, the first discharge pipe 101 is provided with a baffle, which forms an upward-facing mounting groove with the inner wall of the first discharge pipe 101. Multiple rebound springs are provided at the bottom of the mounting groove, and the bottom of the second discharge pipe 201 is pressed against these rebound springs. When the locking member releases the fixing relationship between the first hopper 1 and the second hopper 2, the second hopper 2 is pushed upward under the rebound action of the multiple rebound springs. Specifically, the first discharge pipe 101 is near the bottom... A baffle is provided at the end, and the baffle and the inner wall of the first discharge pipe 101 form an annular mounting groove. The opening of the mounting groove faces upward. The mounting groove is adapted to the second discharge pipe 201. Multiple spring springs are provided on the bottom of the mounting groove. These spring springs are second spring springs 16. When the second discharge pipe 201 extends into the mounting groove and the second hopper 2 is fixed in the first hopper 1 by the locking member, the bottom of the second discharge pipe 201 is pressed on the multiple second spring springs 16.

[0041] In this technical solution, when the concrete pouring is completed and the second hopper 2 needs to be cleaned, the bolt 21 is unscrewed from the bolt groove 22. At this time, under the rebound force of multiple second rebound springs 16, the second hopper 2 is pushed upward along the first hopper 1, making it easy to remove the second hopper 2. At the same time, the roller 26 also moves along the inclined side wall of the slot 19 into the first slide groove 18, causing the baffle 11 to fall off by itself. The beneficial effect of this technical solution is that by designing the enclosure and the second rebound springs 16, the second hopper 2 can be automatically ejected after the bolt 21 is unscrewed, thereby causing the baffle 11 to fall off, saving effort and time.

[0042] In another technical solution, a discharge regulating pipe is also included, comprising a vertical connecting pipe 14 rotatably connected to the mounting groove and a deflecting pipe 15 communicating with the connecting pipe 14. The connecting pipe 14 and the deflecting pipe 15 form an obtuse angle, so that the orientation of the deflecting pipe 15 is adjusted when the connecting pipe 14 is rotated. Figures 1-3 As shown, the connecting pipe 14 and the turning pipe 15 form an obtuse angle, so that the orientation of the turning pipe 15 can be adjusted when the connecting pipe 14 is rotated. The orientation of the turning pipe 15 can be adjusted according to the actual situation to allow the concrete to flow into the formwork better.

[0043] In another technical solution, the steering pipe 15 is rotatably connected to the connecting pipe 14, the connecting pipe 14 is screwed to the mounting groove, and an annular auxiliary block 17 is coaxially provided on the top of the connecting pipe 14. The connecting pipe 14 is rotatably connected to the auxiliary block 17. It also includes a control assembly, which includes a pair of vertical push rods 8 and a pair of horizontal cover plates 9 corresponding to the pair of push rods 8. The pair of cover plates 9 are hinged to the inner wall of the second discharge pipe 201 to open / close the second discharge pipe 201. One end of the push rod 8 contacts the bottom of the corresponding cover plate 9, and the other end is fixed to the top of the auxiliary block 17 so that when the connecting pipe 14 is screwed in / out, it drives the pair of cover plates 9 to close / open the second discharge pipe 201.

[0044] In the above technical solution, the rotatable connection between the steering pipe 15 and the connecting pipe 14 can be either screwed or snap-fitted. The outer wall of the connecting pipe 14 is provided with external threads, and the inner ring wall of the mounting groove is provided with internal threads. The connecting pipe 14 is screwed to the mounting groove through the external and internal threads. An auxiliary block 17 is provided at the top of the connecting pipe 14. The auxiliary block 17 is annular, and the connecting pipe 14 can be rotatably connected to the bottom of the auxiliary block 17 by snap-fitting. The control component includes push rods 8 disposed at both ends of the auxiliary block 17 and a pair of cover plates 9 corresponding to the pair of push rods 8. An opening channel is formed between the pair of cover plates 9. The cover plates 9 are hinged to the inner wall of the second discharge pipe 201 so that the second discharge pipe 201 can be opened or closed when the pair of cover plates 9 rotate. Specifically, a circular mounting block 10 is coaxially provided inside the second discharge pipe 201. The outer circumference of the mounting block 10 is connected to the second discharge pipe. The inner wall of the mounting block 10 is fixedly connected to the second discharge pipe 201. The discharge hole 30 is square at the bottom and includes a positioning block 7. Both ends of the positioning block 7 are fixedly connected to the inner wall of the discharge hole 30, and the bottom end of the positioning block 7 extends out of the discharge hole 30. A pair of cover plates 9 are respectively hinged to the two ends of the bottom of the mounting block 10. When the pair of cover plates 9 rotate to the top and contact the bottom of the positioning block 7, the pair of cover plates 9 close the discharge hole 30. In use, by rotating the connecting pipe 14, the connecting pipe 14 moves upward along the mounting groove, driving a pair of push rods 8 to move up and down. The pair of push rods 8 push the pair of cover plates 9 to rotate in the vertical plane, thereby adjusting the size of the opening channel formed between the pair of cover plates 9, and finally adjusting the discharge size. The beneficial effect of this technical solution is that the connecting pipe 14 can not only install the turning pipe 15 on the second discharge pipe 201, but also adjust the discharge size by rotating the connecting pipe 14 according to the actual situation.

[0045] In another technical solution, the discharge hole 30 has a structure that is larger at the top and smaller at the bottom; for example... Figure 5As shown, the top of the discharge hole 30 is wider than the bottom; the beneficial effect of adopting this technical solution is that by designing the discharge hole 30 as a structure that is larger at the top and smaller at the bottom, concrete can be guided between a pair of cover plates 9.

[0046] In another technical solution, the top of the second hopper 2 is provided with a handle 6; the beneficial effect of adopting this technical solution is that by designing the handle 6, it is convenient to pull the second hopper 2 out of the first hopper 1.

[0047] The number of devices and processing capacity described herein are for the purpose of simplifying the description of the invention. Applications, modifications, and variations of the concrete pouring apparatus of this invention will be readily apparent to those skilled in the art.

[0048] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A concrete pouring device, characterized in that, include: The hopper includes a first hopper, a second hopper slidably fitted inside the first hopper, and a locking member, wherein the locking member is used to fix the second hopper inside the first hopper; A pair of uprights are provided on both sides of the first hopper. Each pair of uprights is provided with a support rod near the side wall of the first hopper. One end of the support rod is fixed to the side wall of the first hopper, and the other end is rotatably connected to the upright. One end of one of the support rods extends out of the upright. The top of the upright is provided with a lifting ring. The first hopper includes a first hopper body and a first discharge pipe that are connected from top to bottom; it also includes a baffle that is movably sleeved on the outer wall of the first discharge pipe; The second hopper includes a second hopper body and a second discharge pipe connected from top to bottom; the baffle has a mounting hole in the middle, and the inner wall of the mounting hole has a pair of opposing fixing blocks, and the side walls of the pair of fixing blocks have rebound blocks; the outer wall of the first discharge pipe has a vertical channel for the passage of the fixing blocks, the bottom of the channel is connected to the outside, the outer wall of the second discharge pipe has a vertical groove, the bottom of the groove near the top extends towards the center of the second discharge pipe to form a horizontal slot, the side wall at the lowest point of the slot is an inclined side wall, the lower end of the inclined side wall is away from the central axis of the second discharge pipe, the rebound block rolls along the groove, and the slot is adapted to the rebound block so that when the second hopper slides along the first hopper to the lowest point and the locking member is fixed, when the rebound block slides along the groove to the slot, the rebound block is locked into the slot.

2. The concrete pouring device as described in claim 1, characterized in that, The edge of the baffle is curved upwards.

3. The concrete pouring device as described in claim 1, characterized in that, The first discharge pipe is equipped with a baffle, which forms an upward-facing mounting groove with the inner wall of the first discharge pipe. The bottom of the mounting groove is equipped with multiple spring springs. The bottom of the second discharge pipe is pressed against the spring springs. When the locking member releases the fixed relationship between the first hopper and the second hopper, the second hopper is pushed upward under the rebound action of the multiple spring springs.

4. The concrete pouring device as described in claim 3, characterized in that, It also includes a discharge regulating pipe, which comprises a vertical connecting pipe rotatably connected to the mounting groove and a steering pipe communicating with the connecting pipe. The connecting pipe and the steering pipe form an obtuse angle so as to adjust the orientation of the steering pipe when the connecting pipe is rotated.

5. The concrete pouring device as described in claim 4, characterized in that, The steering pipe is rotatably connected to the connecting pipe, the connecting pipe is screwed to the mounting groove, and an annular auxiliary block is coaxially provided on the top of the connecting pipe. The connecting pipe is rotatably connected to the auxiliary block. The system also includes a control assembly, which includes a pair of vertical push rods and a pair of horizontal cover plates corresponding to the push rods. The cover plates are hinged to the inner wall of the second discharge pipe to open / close the second discharge pipe. One end of the push rod contacts the bottom of the corresponding cover plate, and the other end is fixed to the top of the auxiliary block so that when the connecting pipe is screwed in / out, it drives the cover plates to close / open the second discharge pipe.

6. The concrete pouring device as described in claim 5, characterized in that, A circular mounting block is coaxially arranged inside the second discharge pipe. The outer circumference of the mounting block is fixedly connected to the inner wall of the second discharge pipe. A discharge hole is opened on the mounting block, and the bottom end of the discharge hole is square. It also includes a positioning block. Both ends of the positioning block are fixedly connected to the inner wall of the discharge hole, and the bottom end of the positioning block extends out of the discharge hole. A pair of cover plates are respectively hinged to the two ends of the bottom of the mounting block. When the pair of cover plates rotate to the top and contact the bottom of the positioning block, the pair of cover plates close the discharge hole.

7. The concrete pouring device as described in claim 6, characterized in that, The discharge hole has a structure that is larger at the top and smaller at the bottom.

8. The concrete pouring device as described in claim 1, characterized in that, The second hopper is equipped with a handle at the top.

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