Concrete pouring device

Abstract

The utility model relates to the field of buildings, in particular to a concrete pouring device. The concrete pouring device comprises a cart (1), a discharging port (5) is formed in the front end of the cart (1), a feeding part (4) is arranged on the cart (1), the two sides of a material conveying groove (41) are in a slope shape, the output end of a motor is connected with an auger (42), the auger (42) is located in the material conveying groove (41), and the other end of the auger (42) is arranged towards the discharging port (5). When the motor drives the auger (42) to rotate, the concrete is uniformly pushed to the discharge hole (5) through the spiral blade; a multi-stage extension support arm (63) is rotationally arranged on the main arm (62); grooves (64) are formed in the main arm (62) and the extending supporting arm (63), and the discharging pipe (7) can be contained through the grooves (64).

Description

Technical Field

[0001] This utility model relates to the field of construction, and in particular to a concrete pouring device. Background Technology

[0002] In modern engineering technology, concrete pouring is a crucial construction step, and its importance is self-evident. When the pouring height exceeds 2 meters, the industry typically adopts two standard concrete pouring techniques. One is the combined application of a truck-mounted pump, a crane, and a tremie pipe. This method combines the flexibility of the truck-mounted pump with the height adaptability of the crane and tremie pipe, which can meet the needs of high-position concrete pouring to a certain extent. The other is to directly use a truck-mounted pump for pouring, which is widely used due to its advantages such as simple operation and fast pouring speed.

[0003] However, in the complex support structures of open-cut subway station deep foundation pit projects, the aforementioned conventional pouring techniques face numerous challenges. Taking the pouring of concrete for the sidewalls of the main structure within the foundation pit as an example, the presence of steel walers and steel supports leads to a series of problems when using a combination of truck-mounted pumps, cranes, and tremie pipes for pouring. Firstly, there is interference from overlapping operations. The layout of the steel walers and steel supports restricts the operating space of the cranes and truck-mounted pumps, and the operations of different equipment affect each other, increasing the complexity and danger of construction. Secondly, there are difficulties in operation. In the limited space, moving and positioning the cranes and tremie pipes becomes extremely difficult. Construction personnel need to invest more time and effort in adjusting the position and angle of the equipment to ensure that the concrete is accurately poured to the designated location. Furthermore, this method is inefficient. Frequent equipment adjustments and operational difficulties significantly slow down the concrete pouring speed, thus prolonging the entire construction cycle. Finally, its applicability is limited. In areas with confined spaces and complex structures, the combined pouring method of truck-mounted pumps, cranes, and tremie pipes often fails to play its due role.

[0004] Given the aforementioned problems, directly using a truck-mounted concrete pump for the main structural sidewalls has become the preferred construction method. While this method avoids some drawbacks of combining truck-mounted pumps with cranes and tremie pipes, it also introduces new issues. Due to the excessive pouring height, segregation is highly likely to occur during the pouring process. Segregation refers to the separation of aggregates, cement paste, and other components in the concrete under gravity, resulting in impaired concrete homogeneity. This will severely affect the concrete quality, reduce its strength and durability, and consequently threaten the safety and stability of the entire project.

[0005] Besides the challenges of pouring concrete in deep foundation pit projects for subways, existing concrete pouring processes also present numerous inconveniences in confined indoor spaces. When concrete pouring needs to be done indoors, large pouring machines often cannot enter. This is because indoor space is limited, and large pouring machines are bulky and difficult to move and operate in narrow passageways and rooms. Moreover, since indoor pouring volumes are usually small, using large pouring equipment results in a waste of manpower and resources. Operating large pouring equipment requires numerous operators and consumes a large amount of energy, making it extremely cost-effective for small-scale pouring projects.

[0006] Furthermore, during indoor pouring, the pouring pipe must be manually guided to align with the pouring nozzle. This is because the pouring pipe is prone to wobbling under the impact of concrete; if not secured, concrete will spill onto the outside, resulting in material waste and affecting the cleanliness of the construction environment. Manually guiding the pouring pipe is not only time-consuming and labor-intensive but also increases the workload and safety risks for construction workers. During prolonged pouring, workers are prone to fatigue, which may cause the pouring pipe to shift, thus affecting the pouring quality.

[0007] On May 13, 2025, using "concrete and auger and pouring and cart" as the abstract keywords and selecting the option to allow synonym expansion, a search was conducted in the China Patent Publication Database, and two documents were found.

[0008] CN210910587U discloses a concrete pouring device for hydraulic construction, comprising a box body, a mixing chamber fixedly connected to the top of the box body, a waterproof motor fixedly installed in the middle of one side of the mixing chamber, a feed hopper fixedly installed on one side of the top of the mixing chamber, a mixing shaft rotatably installed inside the mixing chamber, one end of the mixing shaft being drivenly connected to the output shaft of the waterproof motor, and an auger blade fixedly installed outside the mixing shaft. A first discharge pipe is inserted and connected to the bottom of one side of the mixing chamber. In this hydraulic construction concrete pouring device, the mixing chamber and the auger blade are both frustoconical. When the concrete enters the mixing chamber for mixing, the space gradually narrows, which compresses the concrete and forces out the internal air, effectively reducing the air bubble content and the amount of vibration work. The device on the trolley eliminates the need to drag the discharge pipe back and forth, greatly reducing the physical labor of workers and saving time.

[0009] CN220451446U discloses a pressurized spiral concrete pouring equipment for secondary structures. The equipment includes a trolley, an electrical control box, and a base. The electrical control box and base are sequentially mounted on top of the trolley. A geared motor is located on one side of the base and is fixedly connected to the trolley with screws. A feed hopper is installed on top of the base. This pressurized spiral concrete pouring equipment for secondary structures, through the coordinated operation of multiple sets of transmission shafts, enables the simultaneous operation of a mixer, a discharge hopper, and a feeding auger with only one geared motor. This single-drive, multi-action capability reduces the size and weight of the equipment, facilitating its use in narrow indoor spaces. It also significantly reduces overall manufacturing costs. The integrated mixer on top allows for mixing concrete materials indoors, and the mixed concrete is directly discharged into the feed hopper below, greatly improving work efficiency and reducing the labor intensity of workers.

[0010] The two documents mentioned above differ from the basic principles of this patent. The first document uses a conical design for pressurization, while the second document is primarily for mixing concrete, which is different from this patent.

[0011] On May 13, 2025, an abstract search was conducted on CNKI (China National Knowledge Infrastructure) for the keywords "concrete and auger and pouring and cart", but no relevant literature was found.

[0012] On May 13, 2025, a search was conducted on the website of the United States Patent and Trademark Office for "Concrete with Auger with Pouring with Cart", but no relevant literature was found; the search URL is https: / / ppubs.uspto.gov / pubwebapp / .

[0013] On May 13, 2025, a search was conducted on WIPO's https: / / patentscope2.wipo.int / for "Concrete and Auger and Pouring and Cart", but no relevant literature was found.

[0014] On May 13, 2025, a search was conducted on the website of the Japan Patent Office (https: / / www.j-platpat.inpit.go.jp / ) for the term "Concrete and Auger and Pouring and Cart," but no relevant literature was found.

[0015] It is completely different from the concept of this patent. Utility Model Content

[0016] The purpose of this utility model is to provide a concrete pouring device with better performance. The specific purpose is explained in the several substantial technical effects described in the specific implementation section.

[0017] To achieve the above objectives, the present invention adopts the following technical solution:

[0018] A concrete pouring device, characterized in that,

[0019] The concrete pouring device includes a trolley 1, which has casters 2 at the bottom and a handle 3 on its side. The front end of the trolley 1 has a discharge port 5 and a feeding part 4. The feeding part 4 includes a conveying trough 41 on the surface of the trolley 1. The two sides of the conveying trough 41 are sloping. A motor is located on the side of the trolley 1 away from the discharge port 5. The output end of the motor is connected to an auger 42, which is located in the conveying trough 41. The other end of the auger 42 faces the discharge port 5.

[0020] When the motor drives the auger 42 to rotate, the concrete is evenly pushed to the discharge port 5 through the spiral blades;

[0021] The lower end of the discharge port 5 is also provided with an extension mechanism 6. The extension mechanism 6 is provided with a discharge pipe 7. The extension mechanism 6 includes a fixed seat 61 fixed at the lower end of the discharge port 5. The fixed seat 61 is fixed with a main arm 62. The main arm 62 is rotatably provided with multiple stages of extension arms 63.

[0022] The main arm 62 and the extension arm 63 are provided with grooves 64, which can accommodate the discharge pipe 7.

[0023] A further technical solution of this utility model is that the conveying trough 41 is arranged with a sloping design, which can guide the concrete to the conveying area of ​​the auger 42 and avoid material accumulation.

[0024] A further technical solution of this utility model is that the main arm 62 and the extension arm 63 are in an open state, with their openings facing away from the trolley 1.

[0025] A further technical solution of this utility model is that the main arm 62 is provided with a locking hole 621 on the side near the discharge port 5, one end of the discharge pipe 7 is connected to the discharge port 5, the discharge pipe 7 is adapted to the locking hole 621, and the discharge pipe 7 can enter the groove 64 from the locking hole 621 to ensure the connection stability between the discharge pipe 7 and the trolley body and the extension mechanism 6.

[0026] A further technical solution of this utility model is that the main arm 62 and the extension arm 63 are fixedly connected together or can be extended to be connected together; when they can be extended to be connected together, the main arm 62 and the multi-stage extension arm 63 can be folded and unfolded by an electric push rod; the multi-stage extension arm 63 can be unfolded to form a cantilever structure.

[0027] A further technical solution of this utility model is that the extension mechanism 6 also includes a fixing band 66 with threaded sleeves fixed at both ends. Both ends of the fixing band 66 are threadedly connected to the threaded holes 65 and fixed by bolts. The fixing band 66 is locked to the threaded holes 65 on both sides of the main arm 62 and the extension arm 63, thereby restricting the discharge pipe 7 in the groove 64 and preventing the discharge pipe 7 from shaking due to the impact of concrete during pouring.

[0028] A further technical solution of this utility model is that the top of the discharge pipe 7 is connected to a U-shaped pipe 71 through a flange, and a hook 72 is provided on one side of the outer wall of the other end of the U-shaped pipe 71. When pouring from a low place to a high place, the U-shaped pipe 71 can face the pouring port.

[0029] The present invention, which adopts the above technical solution, has the following beneficial effects compared with the prior art: By adopting the above technical solution, the fixing belt is locked through the threaded holes on both sides of the main arm and the extension arm, thereby restricting the discharge pipe in the groove, avoiding the discharge pipe from shaking due to the impact of concrete during pouring, and greatly improving the overall stability.

[0030] 1. This utility model, through the setting of the extension mechanism, allows the main arm and the extension arm to unfold, thereby forming a cantilever structure, which can be poured from low to high, making the overall application scenarios more diversified.

[0031] 2. This utility model, through the setting of groove, locking hole, discharge pipe and fixing belt, allows the discharge pipe to enter the groove from the locking hole, and the fixing belt is used to restrict the discharge pipe in the groove through threads, so as to prevent the discharge pipe from shaking due to the impact of concrete during material conveying.

[0032] 3. By setting up a U-shaped pipe, when pouring from a low point to a high point, the U-shaped pipe can face the pouring opening, which avoids the concrete being washed out of the pouring opening due to the large impact force when the straight pipe outlet faces upward during the pouring process. At the same time, the U-shaped pipe can buffer the impact force of the concrete flow.

[0033] 4. By setting up a hook, the U-shaped tube can be temporarily fixed on the cast steel mold, eliminating the need for manual operation of the material tube, thus saving time and effort. Attached Figure Description

[0034] To further illustrate this utility model, the following description is provided in conjunction with the accompanying drawings:

[0035] Figure 1 Schematic diagram of the utility model;

[0036] Figure 2 A structural diagram showing the arrangement of the discharge pipe of the utility model;

[0037] Figure 3 and Figure 4 This is a structural diagram of the material conveying trough for a utility model.

[0038] Figure 5 This is a structural diagram of the fixing belt;

[0039] Figure 6 This is a layout diagram of the upper part of the discharge pipe of the utility model.

[0040] Figure 7 A drawing for further improvements to the invention;

[0041] The components include: 1. trolley; 2. casters; 3. handle; 5. discharge port; 6. extension mechanism; 7. discharge pipe; 41. conveying trough; 42. auger; 61. fixed base; 62. main arm; 63. multi-stage extension arm; 64. groove; 65. threaded hole; 66. fixing strap; 71. U-shaped tube; 72. hook; 621. locking hole. Detailed Implementation

[0042] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] This patent provides multiple parallel solutions; the different descriptions represent improved or parallel solutions based on a basic solution. Each solution has its own unique characteristics. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Fixing methods not described herein can be any type of fixing, such as threaded fixing, bolt fixing, or adhesive bonding.

[0045] Example 1: Referring to all the accompanying drawings; a concrete pouring device, characterized in that,

[0046] The concrete pouring device includes a trolley 1, which has casters 2 at the bottom and a handle 3 on its side. The front end of the trolley 1 has a discharge port 5 and a feeding part 4. The feeding part 4 includes a conveying trough 41 on the surface of the trolley 1. The two sides of the conveying trough 41 are sloping. A motor is located on the side of the trolley 1 away from the discharge port 5. The output end of the motor is connected to an auger 42, which is located in the conveying trough 41. The other end of the auger 42 faces the discharge port 5.

[0047] When the motor drives the auger 42 to rotate, the concrete is evenly pushed to the discharge port 5 through the spiral blades;

[0048] The lower end of the discharge port 5 is also provided with an extension mechanism 6. The extension mechanism 6 is provided with a discharge pipe 7. The extension mechanism 6 includes a fixed seat 61 fixed at the lower end of the discharge port 5. The fixed seat 61 is fixed with a main arm 62. The main arm 62 is rotatably provided with multiple stages of extension arms 63.

[0049] The main arm 62 and the extension arm 63 are provided with grooves 64, which can accommodate the discharge pipe 7.

[0050] The substantive technical effects and implementation process of the technical solution presented herein, i.e., its basic functions, are as follows:

[0051] The specific implementation method is as follows: When in use, push the trolley 1 to the location to be poured, pour the concrete into the conveying trough 41, and connect the discharge pipe 7 to the discharge port 5 through a flange. Start the motor, and the motor drives the auger 42 to rotate, thereby inputting the concrete from the discharge port 5 into the discharge pipe 7. After unfolding the extension arm 63, place the discharge pipe 7 into the groove 64 through the locking hole 621, and fix the discharge pipe 7 in the groove 64 through the fixing strap 66. At this time, the discharge end of the discharge pipe 7 is connected to the U-shaped pipe 71 through the flange, and align the discharge end of the U-shaped pipe 71 with the pouring port. It is temporarily fixed on the pouring mold through the hook 72, so that pouring can be carried out without manual support of the discharge pipe 7.

[0052] Reference Figure 1-6This utility model embodiment proposes a concrete pouring device, including a trolley 1, with casters 2 at the bottom of the trolley 1, a handle 3 on the trolley 1, a discharge port 5 at the front end of the trolley 1, and a feeding part 4 on the trolley 1. The feeding part 4 includes a conveying trough 41 on the surface of the trolley 1, with slopes on both sides. A motor is located on the side of the trolley 1 away from the discharge port 5, and an auger 42 is fixed to the output end of the motor. The auger 42 is located in the conveying trough 41, with the other end of the auger 42 facing the discharge port 5. Concrete is poured into the conveying trough 41. The sloped design of the conveying trough 41 can guide the concrete to the conveying area of ​​the auger 42, avoiding material accumulation. When the motor drives the auger 42 to rotate, the concrete is evenly pushed to the discharge port 5 through the spiral blades.

[0053] Reference Figure 1-6 The lower end of the discharge port 5 is also provided with an extension mechanism 6. The extension mechanism 6 is provided with a discharge pipe 7. The extension mechanism 6 includes a fixed seat 61 fixed at the lower end of the discharge port 5. A main arm 62 is fixed on the fixed seat 61. A multi-stage extension arm 63 is rotatably provided on the main arm 62. The main arm 62 and the extension arm 63 are open, with their openings facing away from the trolley 1. The main arm 62 and the extension arm 63 are provided with grooves 64. Threaded holes 65 are provided on both sides of the main arm 62 and the extension arm 63. The main arm 62 and the multi-stage extension arm 63 are folded and unfolded by an electric push rod. This is existing technology and will not be described in detail here. This solution only uses the extension effect of this mechanism and does not improve its extension or the drive mechanism that drives its extension. The multi-stage extension arm 63 can be unfolded to form a cantilever structure. The groove 64 accommodates the discharge pipe 7 and restricts its displacement.

[0054] Reference Figure 1-6 The main arm 62 has a locking hole 621 on the side near the discharge port 5. One end of the discharge pipe 7 is connected to the discharge port 5. The discharge pipe 7 is adapted to the locking hole 621. The discharge pipe 7 can enter the groove 64 through the locking hole 621 to ensure the connection stability between the discharge pipe 7 and the trolley body and the extension mechanism 6, prevent the risk of pipe detachment due to vibration during the pouring process, and facilitate disassembly, cleaning and maintenance.

[0055] Reference Figure 1-6 The extension mechanism 6 also includes a fixing band 66 with threaded sleeves fixed at both ends. Both ends of the fixing band 66 are threadedly connected to the threaded holes 65 and fixed by bolts. The fixing band 66 is locked to the threaded holes 65 on both sides of the main arm 62 and the extension arm 63, thereby restricting the discharge pipe 7 in the groove 64, preventing the discharge pipe 7 from shaking due to the impact of concrete during pouring, and greatly improving the overall stability.

[0056] Reference Figure 1-6The top of the discharge pipe 7 is connected to a U-shaped pipe 71 via a flange. A hook 72 is provided on the outer wall of one side of the other end of the U-shaped pipe 71. When pouring from a low point to a high point, the U-shaped pipe 71 can face the pouring opening, which avoids concrete from being washed out of the pouring opening due to the large impact force when the discharge end of the pouring pipe is facing upwards during the pouring process. At the same time, the U-shaped pipe 71 can buffer the impact force of the concrete flow. The hook 72 is designed to temporarily fix the discharge pipe 7 to the foundation pit support structure such as the steel waler, replacing the manual pipe holding operation, which significantly improves the pouring accuracy and construction safety, and saves time and labor.

[0057] Example 2: As a further improvement, parallel, or optional independent solution, the conveying trough 41 is designed with a ramp. The ramp design of the conveying trough 41 can guide the concrete to the conveying area of ​​the auger 42, avoiding material accumulation. The substantial technical effect and implementation process of this technical solution, i.e., its basic function, are as follows: This solution facilitates the output of materials.

[0058] Example 3: As a further improvement, parallel, or optional independent solution, the main arm 62 and the extension arm 63 are open, with their openings facing away from the trolley 1. The substantive technical effect and implementation process of this technical solution, i.e., its basic function, are as follows: it enables the operation of the pipeline.

[0059] Example 4: As a further improved solution, a parallel solution, or an optional independent solution, the main arm 62 has a locking hole 621 on the side near the discharge port 5. One end of the discharge pipe 7 is connected to the discharge port 5, and the discharge pipe 7 is adapted to the locking hole 621. The discharge pipe 7 can enter the groove 64 through the locking hole 621, ensuring the connection stability between the discharge pipe 7 and the trolley body and the extension mechanism 6. The substantial technical effect and implementation process of the technical solution here, i.e., the basic function, are as follows: A specific connection relationship is provided here, and similar implementation structures are all within the protection scope of this patent.

[0060] Example 5: As a further improvement, parallel, or optional independent solution, threaded holes 65 are provided on both sides of 63. The main arm 62 and the multi-stage extension arm 63 are folded and unfolded by an electric push rod, which is existing technology and will not be described in detail here. This solution only uses the extension effect of this mechanism without improving its extension or the drive mechanism that drives it. The multi-stage extension arm 63 can be unfolded to form a cantilever structure, and the discharge pipe 7 is accommodated and its displacement is restricted by the groove 64. Reference Figure 7 An electric push rod can be fixed on the main arm 62 and the multi-stage extension arm 63 for overall support; the bottom of the electric push rod is placed on the bracket connected to the outside of the main arm 62 and the multi-stage extension arm 63, and the next stage extension arm is hinged above the electric push rod.

[0061] Example 6: As a further improvement, parallel, or optional independent solution, the extension mechanism 6 further includes a fixing band 66 with threaded sleeves fixed at both ends. Both ends of the fixing band 66 are threadedly connected to threaded holes 65 and fixed by bolts. The fixing band 66 is locked to the threaded holes 65 on both sides of the main arm 62 and the extension arm 63, thereby confining the discharge pipe 7 within the groove 64 and preventing the discharge pipe 7 from shaking due to the impact of concrete during pouring. The substantial technical effect and implementation process of this technical solution, i.e., its basic function, is as follows: Therefore, it can prevent pipe shaking.

[0062] Example 7: As a further improvement, parallel solution, or optional independent solution, the top of the discharge pipe 7 is connected to a U-shaped pipe 71 via a flange. A hook 72 is provided on one side of the outer wall of the other end of the U-shaped pipe 71, allowing the U-shaped pipe 71 to face the pouring opening when pouring from a lower to a higher position. The substantive technical effect and implementation process of this technical solution, i.e., its basic function, are as follows: This embodiment provides a specific implementation structure; similar implementation structures are all within the protection scope of this patent.

[0063] Innovatively, each of the above effects exists independently, yet a single structure can be used to combine the results.

[0064] It should be noted that the multiple modules in this patent are an integration of existing technology modules and do not involve any new modules. Even if some modules use programs, those programs are undoubtedly known programs.

[0065] It should be noted that the multiple solutions provided in this patent include their own basic solutions, which are independent of each other and do not restrict each other. However, they can also be combined with each other without conflict to achieve multiple effects.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims.

Claims

1. A concrete pouring device, characterized in that, The concrete pouring device includes a trolley (1), with casters (2) at the bottom of the trolley (1), a handle (3) on the trolley (1), a discharge port (5) at the front end of the trolley (1), and a feeding part (4) on the trolley (1). The feeding part (4) includes a conveying trough (41) on the surface of the trolley (1). The two sides of the conveying trough (41) are sloping. A motor is provided on the side of the trolley (1) away from the discharge port (5). The output end of the motor is connected to an auger (42). The auger (42) is located in the conveying trough (41), and the other end of the auger (42) is facing the discharge port (5). When the motor drives the auger (42) to rotate, the concrete is pushed evenly to the discharge port (5) through the spiral blades. An extension mechanism (6) is provided on one side of the lower end of the discharge port (5). The extension mechanism (6) is provided with a discharge pipe (7). The extension mechanism (6) includes a fixed seat (61) fixed on one side of the lower end of the discharge port (5). A main arm (62) is fixed on the fixed seat (61). A multi-stage extension arm (63) is rotatably provided on the main arm (62). The main arm (62) and the extension arm (63) are provided with grooves (64), through which the discharge pipe (7) can be accommodated.

2. The concrete pouring device as described in claim 1, characterized in that, The conveying trough (41) is designed with a slope. The slope design of the conveying trough (41) can guide the concrete to the conveying area of ​​the auger (42) to avoid material accumulation.

3. The concrete pouring device as described in claim 1, characterized in that, The main arm (62) and the extension arm (63) are open, with their openings facing away from the trolley (1).

4. The concrete pouring device as described in claim 1, characterized in that, The main arm (62) has a locking hole (621) on the side near the discharge port (5). One end of the discharge pipe (7) is connected to the discharge port (5). The discharge pipe (7) is adapted to the locking hole (621). The discharge pipe (7) can enter the groove (64) through the locking hole (621) to ensure the connection stability between the discharge pipe (7) and the trolley body and the extension mechanism (6).

5. A concrete pouring device as described in claim 1, characterized in that, The main arm (62) and the extension arm (63) are fixedly connected together or can be extended together; when they can be extended together, the main arm (62) and the multi-stage extension arm (63) can be folded and unfolded by electric push rods; the multi-stage extension arm (63) can be unfolded to form a cantilever structure.

6. A concrete pouring device as described in claim 1, characterized in that, The extension mechanism (6) also includes a fixing band (66) with threaded sleeves fixed at both ends. Both ends of the fixing band (66) are threadedly connected to the threaded holes (65) and fixed by bolts. The fixing band (66) is locked to the threaded holes (65) on both sides of the main arm (62) and the extension arm (63), thereby restricting the discharge pipe (7) in the groove (64) and preventing the discharge pipe (7) from shaking due to the impact of concrete during pouring.

7. A concrete pouring device as described in claim 1, characterized in that, The top of the discharge pipe (7) is connected to a U-shaped pipe (71) via a flange. A hook (72) is provided on the outer wall of one side of the other end of the U-shaped pipe (71). When pouring from a low point to a high point, the U-shaped pipe (71) can be directed toward the pouring port.

Images