Mixing and distributing assembly of concrete distributing truck

Abstract

The utility model relates to the technical field of concrete pouring technology, in particular to a stirring and distributing assembly of a concrete distributing truck, which comprises a distributing bin, outer pipes are fixedly connected to two sides of the distributing bin, and inner cavities of the outer pipes are rotatably provided with stirring blades which are concentric with the outer pipes; a notch is reserved between every two adjacent inner pipes and corresponds to the corresponding discharging opening, a spiral strip-shaped flow guide plate is arranged in an inner cavity of each notch, and the two ends of each strip-shaped flow guide plate are fixedly connected with the two corresponding inner pipes respectively. The device has the beneficial effects that a plurality of inner pipes distributed at equal intervals are installed in an inner cavity of an outer pipe, a notch is reserved between every two adjacent inner pipes, a plurality of strip-shaped guide plates distributed in an annular array are arranged in inner cavities of the notches, cleaning brushes are arranged at the positions, corresponding to the notches, of the top of the inner side wall of the outer pipe, and the cleaning brushes can clean the strip-shaped guide plates; the strip-shaped flow guide plate pokes the cleaning brush to shake off concrete adhered to the cleaning brush, and the situation that the internal space of the device is blocked due to adhesion, accumulation and solidification of the concrete is avoided.

Description

Technical Field

[0001] This utility model relates to the field of concrete pouring technology, specifically to a concrete placing truck mixing and placing assembly. Background Technology

[0002] Concrete transportation is an essential material in tunnel construction. The subway concrete placing vehicle is a new type of subway construction equipment with interchangeable standard rail and adaptive angle tire running system. It is mainly used for long-distance transportation and pouring of concrete in subway track laying construction.

[0003] In the prior art, Chinese invention with publication number CN106437161B discloses a concrete placing device, which has less wear on moving parts and easy replacement of parts.

[0004] However, currently, due to the inherent viscosity of concrete, it easily adheres to the inner wall of the placing pipe during transportation. After prolonged accumulation and solidification, this can easily lead to blockage inside the placing pipe. Therefore, this invention proposes a concrete placing truck mixing and placing assembly to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a concrete placing vehicle mixing and placing assembly to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a concrete placing truck mixing and placing assembly, comprising:

[0007] The material distribution bin has an outer pipe fixedly connected to both sides. A material distribution pipe is rotatably installed in the inner cavity of the outer pipe, which is concentric with the outer pipe and communicates with the inner cavity of the material distribution bin. A material outlet is opened at the bottom of the surface of the outer pipe, and a cleaning brush corresponding to the material outlet is fixed at the top of the inner wall of the outer pipe.

[0008] The fabric tube includes multiple inner tubes distributed at equal intervals, with a gap between two adjacent inner tubes. The gap corresponds to the feed port. The inner cavity of the gap is provided with a spiral strip guide plate, and the two ends of the strip guide plate are fixedly connected to the two inner tubes respectively.

[0009] Preferably, the end of the material distribution tube away from the material distribution bin is sealed, and the material discharge port is provided with multiple discharge ports, each corresponding to a different notch.

[0010] Preferably, sealing rings are provided on both sides of the discharge port, the sealing rings are fixed to the inner wall of the outer tube, and the inner and outer diameters of the sealing rings are consistent with the outer diameter of the inner tube and the inner diameter of the outer tube, respectively.

[0011] Preferably, the cleaning brushes are arranged in groups of multiple, and the multiple cleaning brushes in a group are arranged in an arc-shaped array around the axis of the outer tube on the inner wall of the upper half of the outer tube. The cleaning brushes are elastic metal bristles.

[0012] Preferably, the outer tube is composed of two semi-circular plates fixedly spliced ​​together, and splicing blocks for bolt splicing are fixed at the edge of the outer tube.

[0013] Preferably, a transmission gear is rotatably mounted on the top of the outer tube, the lower half of the transmission gear extends into the inner cavity of the outer tube, and an outer gear ring is fixed on the outer side wall of the inner tube, and the outer gear ring meshes with the transmission gear for transmission.

[0014] Preferably, multiple transmission gears and multiple external gear rings are provided, and the multiple transmission gears are staggered with the multiple feed ports.

[0015] Preferably, a drive gear corresponding to and meshing with multiple transmission gears is rotatably mounted on the outer side of the outer tube via a bracket, the central shafts of the multiple drive gears are fixed to each other, and a drive motor for driving the drive gears is fixed to the outer side of one end of the protective cover.

[0016] Preferably, the protective cover is configured as a two-part structure that is spliced ​​together, and a magnet is embedded at the splice.

[0017] Preferably, the material distribution bin is inclined, and a "V"-shaped material distribution block is fixed at the bottom of the inner cavity of the material distribution bin. The top of the material distribution bin is provided with a material inlet, which is connected to the discharge pipe of the concrete placing truck.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This invention features multiple inner tubes evenly spaced within an outer tube, with gaps between adjacent inner tubes. Each gap contains a ring-shaped array of strip-shaped guide plates, each spiral-shaped guide plate with its ends fixedly connected to adjacent inner tubes. The distribution pipe, composed of the inner tubes, gaps, and strip-shaped guide plates, transports concrete during rotation, with the concrete only exiting from the gaps. A cleaning brush is positioned on the top of the inner wall of the outer tube, corresponding to the gap. As the distribution pipe rotates and transports concrete, the cleaning brush cleans the strip-shaped guide plates. Conversely, the strip-shaped guide plates can shake off any concrete adhering to the cleaning brush, thus preventing concrete adhesion, accumulation, and solidification that could block the internal space of the device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0021] Figure 2This is an exploded view of the overall structure of this utility model;

[0022] Figure 3 This is a partial cross-sectional schematic diagram of the fabric tube structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the outer tube of this utility model;

[0024] Figure 5 This is a half-sectional schematic diagram of the outer tube structure of this utility model.

[0025] In the diagram: 1. Material distribution bin; 11. Material distribution block; 12. Inlet; 2. Outer pipe; 21. Outlet; 22. Sealing ring; 23. Cleaning brush; 24. Connecting block; 3. Inner pipe; 31. Notch; 32. Strip guide plate; 33. Outer gear ring; 4. Protective cover; 41. Drive gear; 42. Transmission gear; 43. Drive motor; 44. Magnet plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Example 1, please refer to Figure 1-Figure 5 This utility model provides a technical solution: a concrete placing vehicle mixing and placing assembly, including: a material distribution bin 1.

[0028] Specifically, outer pipes 2 are fixedly connected to both sides of the material distribution bin 1. Depending on the actual use scenario, the two outer pipes 2 can be set to be collinear or set to have a certain angle. The two outer pipes 2 are symmetrically distributed with the vertical plane where the material distribution bin 1 is located as the plane of symmetry. A material distribution pipe is rotatably installed in the inner cavity of the outer pipe 2, which is concentric with the outer pipe 2 and communicates with the inner cavity of the material distribution bin 1. The material distribution pipe is used to transport concrete materials. A discharge port 21 is opened at the bottom of the surface of the outer pipe 2. The discharge port 21 allows the concrete materials to be discharged downward under the action of gravity. A cleaning brush 23 corresponding to the discharge port 21 is fixed at the top of the inner wall of the outer pipe 2.

[0029] Secondly, the concrete placing pipe includes multiple inner pipes 3 distributed at equal intervals, with gaps 31 between adjacent inner pipes 3. When the concrete placing pipe transports concrete materials, the concrete can be discharged from each gap 31. Since the gaps 31 correspond to the discharge ports 21, the concrete is finally discharged from the discharge ports 21 and poured onto the ground at the bottom of the tunnel. A spiral-shaped guide plate 32 is installed inside the gap 31, and both ends of the guide plate 32 are fixedly connected to two inner pipes 3 respectively. The installation of the guide plate 32 allows for… Used to fix two adjacent inner tubes 3 together, ensuring the stability and collinearity of the entire distribution pipe structure, the number of spiral turns of the strip guide plate 32 is 1 / 6. Multiple strip guide plates 32 inside the notch 31 are set as a group, which can improve the stability and strength of the connection and fixation of the inner tubes 3. When the entire distribution pipe rotates, a part of the concrete is discharged from the notch 31, and the excess concrete is squeezed by the strip guide plate 32 and flows to the end of the distribution pipe away from the distribution bin 1. Therefore, multiple notches 31 can discharge concrete together.

[0030] To improve the uniformity of concrete distribution, the end of the distribution pipe away from the distribution bin 1 is sealed to ensure that concrete is discharged only from the notch 31. Multiple discharge ports 21 are provided and correspond one-to-one with multiple notches 31 to ensure that concrete can be distributed more evenly along the length of the outer pipe 2.

[0031] To support the fabric distribution tube, this application also includes sealing rings 22 on both sides of the discharge port 21. The sealing rings 22 are fixed to the inner wall of the outer tube 2. The inner and outer diameters of the sealing rings 22 are consistent with the outer diameter of the inner tube 3 and the inner diameter of the outer tube 2, respectively. The sealing rings 22 support the fabric distribution tube, ensuring that it can only rotate within the inner cavity of the outer tube 2 and that both remain concentric. Figure 4 and Figure 5 As shown, since there is a gap between the material distribution pipe and the outer pipe 2, the sealing ring 22 can divide the gap into multiple small spaces. The small space corresponding to the discharge port 21 can be used for the installation of the cleaning brush 23, while the small space offset from the discharge port 21 can prevent concrete from entering.

[0032] To improve the cleaning effect on the strip guide plate 32, multiple cleaning brushes 23 are arranged in a group. The multiple cleaning brushes 23 in a group are arranged in an arc array around the axis of the outer pipe 2 on the inner wall of the upper half of the outer pipe 2. The cleaning brushes 23 are elastic metal brushes. The arrangement of multiple cleaning brushes 23 in a group can improve the cleaning effect on the strip guide plate 32. When the elastic metal brush is squeezed by the strip guide plate 32, it can recover its deformation on the one hand, and generate a large squeezing force on the surface of the strip guide plate 32 on the other hand, so as to improve the effective cleaning of the concrete adhering to the surface of the strip guide plate 32 and avoid the gap 31 being blocked.

[0033] To facilitate the installation and disassembly of the inner tube of the outer tube 2, the outer tube 2 of this application is composed of two semi-circular plates fixedly spliced ​​together. The edge of the outer tube 2 is fixed with splicing blocks 24 for bolt splicing and fixing. Figure 4 and Figure 5 As shown, the outer tube 2 of this device can be disassembled and assembled to facilitate the installation and disassembly of the internal fabric distribution tube.

[0034] To drive the fabric tube to rotate, this application also includes a transmission gear 42 rotatably mounted on the top of the outer tube 2. The lower half of the transmission gear 42 extends into the inner cavity of the outer tube 2. An outer gear ring 33 is fixed to the outer wall of the inner tube 3, and the outer gear ring 33 meshes with the transmission gear 42 for transmission. Multiple transmission gears 42 and multiple outer gear rings 33 are provided, and the multiple transmission gears 42 are staggered with the multiple feed ports 21. Figure 3 and Figure 4 As shown, when the transmission gear 42 rotates, it can drive the inner tube 3 to rotate, thereby realizing the rotation of the entire material distribution pipe. Since the area where the outer gear ring 33 is located is offset from the discharge port 21, concrete will not enter the area where the outer gear ring 33 and the transmission gear 42 are located, thus avoiding the impact of concrete on the tooth grooves on the surface of the outer gear ring 33 and the transmission gear 42.

[0035] In order to provide power for the rotation of the fabric tube, this application also has a drive gear 41 that is rotatably mounted on the outside of the outer tube 2 via a bracket and meshes with a plurality of transmission gears 42. The central shafts of the plurality of drive gears 41 are fixed to each other. A drive motor 43 that drives the drive gears 41 to rotate is fixed on the outside of one end of the cover 4. When the drive motor 43 is working, it drives the plurality of drive gears 41 to rotate synchronously, thereby driving the fabric tube to rotate through the transmission of the transmission gears 42.

[0036] To facilitate opening the protective cover 4, the protective cover 4 of this application is designed as a two-part structure that is spliced ​​together, and a magnetic piece 44 is embedded at the splicing point. Figure 4 and Figure 2 As shown, the main part of the protective cover 4 is fixed to the outer tube 2, and the other part is a detachable structure. After opening, it is convenient for workers to bolt the splicing block 24 located on the upper part of the outer tube 2.

[0037] To transport concrete materials, the material distribution bin 1 of this application is inclined. A herringbone-shaped material distribution block 11 is fixed to the bottom of the inner cavity of the material distribution bin 1. An inlet 12 is provided at the top of the material distribution bin 1, and the inlet 12 is connected to the discharge pipe of the concrete placing truck. Figure 2 As shown, the concrete placing truck's discharge pipe discharges concrete into the inner cavity of the distribution bin 1 through the inlet 12. The distribution block 11 can guide the concrete to both sides, thereby evenly distributing the concrete into the two placing pipes.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concrete placing truck mixing and placing assembly, characterized in that: Including: A material distribution bin (1), both sides of the material distribution bin (1) are fixedly connected with outer pipes (2), a cloth pipe that is concentric with the outer pipe (2) and communicates with the inner cavity of the material distribution bin (1) is rotatably installed in the inner cavity of the outer pipe (2), a material discharge port (21) is opened at the bottom surface of the outer pipe (2), and a cleaning brush (23) corresponding to the material discharge port (21) is fixed at the top of the inner wall of the outer pipe (2); The cloth pipe includes a plurality of inner pipes (3) distributed at equal intervals, and further includes a protective cover (4). A gap (31) is left between adjacent two inner pipes (3), the gap (31) corresponds to the material discharge port (21), a spiral strip-shaped diversion plate (32) is arranged in the inner cavity of the gap (31), and both ends of the strip-shaped diversion plate (32) are fixedly connected with the two inner pipes (3) respectively.

2. The concrete placing truck mixing and placing assembly according to claim 1, characterized in that: One end of the cloth pipe far away from the material distribution bin (1) is sealed, and there are a plurality of the material discharge ports (21) which correspond to the plurality of gaps (31) one by one.

3. The concrete placing truck mixing and placing assembly according to claim 2, characterized in that: Sealing retaining rings (22) are arranged on both sides of the material discharge port (21), the sealing retaining rings (22) are fixed on the inner wall of the outer pipe (2), and the inner and outer diameters of the sealing retaining rings (22) are respectively consistent with the outer diameter of the inner pipe (3) and the inner diameter of the outer pipe (2).

4. The concrete placing truck mixing and placing assembly according to claim 3, characterized in that: The cleaning brushes (23) are arranged in a group with multiple ones, and the multiple cleaning brushes (23) in a group are distributed in an arc array around the axis of the outer pipe (2) on the upper half inner wall of the outer pipe (2), and the cleaning brushes (23) are elastic metal brushes.

5. A concrete placing truck mixing and placing assembly according to claim 4, characterized in that: The outer pipe (2) is composed of two semi-circular plates fixedly spliced with each other, and splicing blocks (24) for bolt splicing and fixing are fixed at the edges of the outer pipe (2).

6. A concrete placing truck mixing and placing assembly according to claim 5, characterized in that: A transmission gear (42) is rotatably installed at the top of the outer pipe (2), the lower half of the transmission gear (42) extends into the inner cavity of the outer pipe (2), an outer gear ring (33) is fixed on the outer side wall of the inner pipe (3), and the outer gear ring (33) is in meshing transmission with the transmission gear (42).

7. A concrete placing truck mixing and placing assembly according to claim 6, characterized in that: Both the transmission gear (42) and the outer gear ring (33) are provided with multiple ones, and the multiple transmission gears (42) are mutually offset with the multiple material discharge ports (21).

8. A concrete placing truck mixing and placing assembly according to claim 7, characterized in that: Drive gears (41) corresponding to and meshing with the multiple transmission gears (42) are rotatably installed on the outer side of the outer pipe (2) through brackets, the central axes of the multiple drive gears (41) are fixedly connected with each other, and a drive motor (43) for driving the drive gears (41) to rotate is fixed on the outer side of one end of the protective cover (4).

9. A concrete placing truck mixing and placing assembly according to claim 8, characterized in that: The protective cover (4) is arranged in a two-half structure that is spliced with each other, and magnet sheets (44) are embedded at the splicing part.

10. A concrete placing truck mixing and placing assembly according to claim 1, characterized in that: The material distribution bin (1) is inclined, a material distribution block (11) in a "person" shape is fixed at the bottom of the inner cavity of the material distribution bin (1), a feed inlet (12) is arranged at the top of the material distribution bin (1), and the feed inlet (12) is communicated with the material discharge pipe of a concrete placing truck.

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