A concrete underpass pouring device

Abstract

This application provides a concrete underpass pouring device, relating to the field of building equipment technology. It includes a support plate with two support frames fixedly connected to its upper surface. Each support frame has a groove on its surface, and a limiting block is slidably connected inside each groove. A limiting box is fixedly connected between the two limiting blocks. In use, a first motor drives a lead screw, which in turn drives a slider in a helical transmission, causing the conveying pipe and discharge funnel to move back and forth. This ensures the material is evenly distributed across the pouring area, preventing excessively high local cement content and guaranteeing the overall construction quality of the poured surface. Simultaneously, a deceleration groove is provided inside the conveying pipe. During the conveying process, the concrete material contacts the inner wall of the deceleration groove, effectively reducing the sliding speed and preventing segregation of aggregate and cement paste due to excessive material movement. This ensures the homogeneity of the poured concrete and enhances the structural strength of the underpass.

Description

Technical Field

[0001] This utility model relates to the field of building equipment technology, and more specifically, to a concrete underpass pouring device. Background Technology

[0002] With the continuous improvement of urban transportation networks and the deepening development of underground space, the demand for concrete underpasses is increasing day by day as a key infrastructure to alleviate surface traffic pressure and achieve separation of pedestrians and vehicles. Whether it is a vehicular underpass under the main urban road or an underground evacuation passage supporting rail transit, it puts forward stringent requirements on the strength, density and construction efficiency of concrete structures. The pouring process is the core process that determines the quality of the passage structure, and its technical level directly affects the overall performance and service life of the project.

[0003] However, in the use of existing technology, the feeding pipe of the feeding device is usually fixed, which makes it easy for cement and stone to accumulate locally during the pouring process. This can lead to an imbalance in the concrete mix, resulting in excessively high local cement content. The concentrated release of heat of hydration can generate severe temperature stress, and shrinkage cracks are likely to occur after pouring, affecting the construction quality. Therefore, a concrete underpass pouring device is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the feeding pipe of the current feeding device is usually fixed, which makes it easy for cement and stone to accumulate locally during the pouring process. This can lead to an imbalance in the proportion of concrete, resulting in excessively high local cement content. The concentrated release of heat of hydration can generate severe temperature stress, and shrinkage cracks are likely to occur after pouring, affecting the construction quality.

[0005] To achieve the above-mentioned objectives and improve the aforementioned problems, this utility model provides a concrete underpass pouring device, including a support plate. Two support frames are fixedly connected to the upper surface of the support plate. Each support frame has a groove on its surface, and a limiting block is slidably connected inside each groove. A limiting box is fixedly connected between the two limiting blocks. An electric telescopic rod is fixedly connected inside the support plate, and the output end of the electric telescopic rod is fixedly connected to the lower surface of the limiting box. A slider is slidably connected inside the limiting box, and a material conveying pipe is fixedly connected to the upper surface of the slider. A discharge funnel is fixedly connected to one end of the material conveying pipe. A first motor is fixedly connected to the surface of one of the limiting blocks, and a lead screw is fixedly connected to the output end of the first motor via a coupling. The slider is sleeved on the outer surface of the lead screw. A stirring device is provided on the upper surface of the support plate.

[0006] As a preferred technical solution of this application, the stirring device includes a stirring tank, the lower surface of which is fixedly connected to the upper surface of the support plate.

[0007] As a preferred technical solution of this application, a second motor is fixedly connected to the lower surface of the support plate, and a transmission rod is fixedly connected to the output end of the second motor through a coupling.

[0008] As a preferred technical solution of this application, a stirring rod distributed in a circular pattern is fixedly connected to the outer surface of the transmission rod, and a conical disk is fixedly connected to the top end of the transmission rod.

[0009] As a preferred technical solution of this application, a scraper is fixedly connected to the end of the stirring rod away from the transmission rod, and the outer surface of the scraper is in contact with the inner wall of the stirring tank.

[0010] As a preferred technical solution of this application, a feeding funnel is fixedly connected to the upper surface of the mixing tank, and a solenoid valve is fixedly connected to the lower surface of the mixing tank.

[0011] As a preferred technical solution of this application, a negative pressure pump is fixedly connected to the upper surface of the support plate, the output end of the negative pressure pump is fixedly connected to the lower surface of the solenoid valve, and the output end of the negative pressure pump is fixedly connected to the end of the conveying pipe away from the discharge funnel.

[0012] As a preferred technical solution of this application, the inside of the conveying pipe is provided with a deceleration groove, and the lower surface of the support plate is provided with casters.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In this application, during use, the electric telescopic rod between the support plate and the limiting box, combined with the limiting action of the support frame slide groove on the limiting block, drives the discharge funnel to move up and down, precisely controlling the drop of the material at the discharge position. The screw driven by the first motor causes the screw and slider to spirally drive the conveying pipe and discharge funnel back and forth, ensuring the material is evenly distributed in the pouring area, avoiding excessively high local cement content, and guaranteeing the overall construction quality of the pouring surface. Simultaneously, a deceleration groove is opened inside the conveying pipe. During the conveying process, the concrete material contacts the inner wall of the deceleration groove, effectively reducing the sliding speed and preventing segregation of aggregate and cement paste due to excessive material movement. This ensures the homogeneity of the poured concrete and enhances the strength of the underpass pouring structure. Attached Figure Description

[0015] Figure 1 A structural schematic diagram of the concrete underpass pouring device provided in this application;

[0016] Figure 2A schematic diagram of the limiting box in the concrete underpass pouring device provided in this application;

[0017] Figure 3 A schematic diagram of the conical disc in the concrete underpass pouring device provided in this application;

[0018] Figure 4 A schematic diagram of the limiting block in the concrete underpass pouring device provided in this application.

[0019] The image shows:

[0020] 1. Support plate; 2. Casters; 3. Mixing tank; 4. Negative pressure pump; 5. Feeding funnel; 6. Discharge funnel; 7. Conveying pipe; 8. Sliding block; 9. Limiting block; 10. Support frame; 11. Slide groove; 12. Electric telescopic rod; 13. Limiting box; 14. First motor; 15. Lead screw; 16. Second motor; 17. Solenoid valve; 18. Reduction groove; 19. Transmission rod; 20. Mixing rod; 21. Scraper; 22. Conical disc. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0023] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4A concrete underpass pouring device includes a support plate 1. Two support frames 10 are fixedly connected to the upper surface of the support plate 1. Each support frame 10 has a groove 11 on its surface. A limit block 9 is slidably connected inside each groove 11. The support frame 10 serves to limit the position of the limit block 9. A limit box 13 is fixedly connected between the two limit blocks 9. An electric telescopic rod 12 is fixedly connected inside the support plate 1. The output end of the electric telescopic rod 12 is fixedly connected to the lower surface of the limit box 13. The electric telescopic rod 12 drives the limit box 13 to move up and down. A slider 8 is slidably connected inside the limit box 13. A material conveying pipe 7 is fixedly connected to the upper surface of the slider 8. A discharge funnel 6 is fixedly connected to one end of the material conveying pipe 7. The discharge funnel 6 is used to discharge the material.

[0026] A first motor 14 is fixedly connected to the surface of a limiting block 9. The output end of the first motor 14 is fixedly connected to a lead screw 15 through a coupling. The inner part of the slider 8 is sleeved on the outer surface of the lead screw 15. The first motor 14 drives the lead screw 15 to rotate, so that the lead screw 15 drives the slider 8 to move back and forth. A stirring device is provided on the upper surface of the support plate 1.

[0027] Furthermore, such as Figure 1 , Figure 3 As shown, the mixing device includes a mixing tank 3, the lower surface of which is fixedly connected to the upper surface of the support plate 1. The mixing tank 3 serves to store and mix the materials.

[0028] Furthermore, such as Figure 2 , Figure 3 As shown, a second motor 16 is fixedly connected to the lower surface of the support plate 1. The output end of the second motor 16 is fixedly connected to a transmission rod 19 through a coupling. The second motor 16 drives the transmission rod 19 to rotate.

[0029] Furthermore, such as Figure 3 As shown, a stirring rod 20 distributed in a circular pattern is fixedly connected to the outer surface of the transmission rod 19, and a conical disk 22 is fixedly connected to the top of the transmission rod 19. The stirring rod 20 is used to stir the material.

[0030] Furthermore, such as Figure 3 As shown, a scraper 21 is fixedly connected to the end of the stirring rod 20 away from the transmission rod 19. The outer surface of the scraper 21 is in contact with the inner wall of the mixing tank 3. By scraping the inner wall of the mixing tank 3 with the scraper 21, the material adhering to the inner wall of the mixing tank 3 is removed.

[0031] Furthermore, such as Figure 2 , Figure 3As shown, a feeding funnel 5 is fixedly connected to the upper surface of the mixing tank 3, and a solenoid valve 17 is fixedly connected to the lower surface of the mixing tank 3. The feeding funnel 5 is used to feed materials into the mixing tank 3.

[0032] Furthermore, such as Figure 1 , Figure 3 As shown, a negative pressure pump 4 is fixedly connected to the upper surface of the support plate 1. The output end of the negative pressure pump 4 is fixedly connected to the lower surface of the solenoid valve 17. The output end of the negative pressure pump 4 is fixedly connected to the end of the conveying pipe 7 away from the discharge funnel 6. The solenoid valve 17 plays the role of controlling the output and interruption of materials.

[0033] Furthermore, such as Figure 3 As shown, a deceleration groove 18 is provided inside the material conveying pipe 7, and a caster wheel 2 is provided on the lower surface of the support plate 1. The caster wheel 2 serves as a moving device.

[0034] The usage process of the concrete underpass pouring device provided by this utility model is as follows: First, the material is fed into the mixing tank 3 through the feeding funnel 5. The material first contacts the upper surface of the conical disc 22, which evenly distributes the material into the mixing tank 3. Then, the second motor 16 is started, driving the transmission rod 19 to rotate. This causes the transmission rod 19 to rotate the stirring rod 20 and the scraper 21, thus stirring the material inside the mixing tank 3 and ensuring uniform mixing. Simultaneously, the close contact between the scraper 21 and the inner wall of the mixing tank 3 prevents material from adhering to the inner wall, thus cleaning the inner wall and reducing the difficulty and labor intensity of subsequent cleaning. After the material is stirred, the solenoid valve 17 is opened, and the negative pressure pump 4 is started, allowing the material inside the mixing tank 3 to be transported through the negative pressure pump 4. Upon entering the conveying pipe 7, the material comes into contact with the deceleration groove 18 inside the conveying pipe 7. This reduces the sliding speed of the material along the inner wall of the deceleration groove 18, preventing excessively fast movement of the material inside the deceleration groove 18 and causing segregation, which would affect the casting quality. Finally, the material is discharged from the conveying pipe 7 through the discharge funnel 6. During use, the electric telescopic rod 12 drives the limiting box 13 to move up and down under the limiting action of the slide 11, ensuring that the drop of the material from the discharge funnel 6 to the casting position meets the requirements of the casting construction. At the same time, the first motor 14 is turned on, driving the lead screw 15 to rotate, causing the lead screw 15 to engage in helical transmission with the slider 8. Under the limiting action of the limiting box 13, the slider 8 moves back and forth, allowing the material discharged from the discharge funnel 6 to be evenly distributed in the casting area, preventing excessively high local cement content and ensuring the quality of the construction.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A concrete underpass pouring device, characterized in that, The system includes a support plate (1), on the upper surface of which two support frames (10) are fixedly connected. Each support frame (10) has a groove (11) on its surface. A limit block (9) is slidably connected inside each groove (11). A limit box (13) is fixedly connected between the two limit blocks (9). An electric telescopic rod (12) is fixedly connected inside the support plate (1). The output end of the electric telescopic rod (12) is fixedly connected to the lower surface of the limit box (13). The limiting box (13) has a sliding block (8) inside, and a conveying pipe (7) is fixedly connected to the upper surface of the sliding block (8). A discharge funnel (6) is fixedly connected to one end of the conveying pipe (7). A first motor (14) is fixedly connected to the surface of a limiting block (9). A lead screw (15) is fixedly connected to the output end of the first motor (14) through a coupling. The inside of the sliding block (8) is sleeved on the outer surface of the lead screw (15). A stirring device is provided on the upper surface of the support plate (1).

2. The concrete underpass pouring device according to claim 1, characterized in that: The stirring device includes a stirring tank (3), the lower surface of which is fixedly connected to the upper surface of the support plate (1).

3. The concrete underpass pouring device according to claim 2, characterized in that: The lower surface of the support plate (1) is fixedly connected to a second motor (16), and the output end of the second motor (16) is fixedly connected to a transmission rod (19) via a coupling.

4. A concrete underpass pouring device according to claim 3, characterized in that: The outer surface of the transmission rod (19) is fixedly connected to a stirring rod (20) that is circumferentially distributed, and the top end of the transmission rod (19) is fixedly connected to a conical disk (22).

5. A concrete underpass pouring device according to claim 4, characterized in that: A scraper (21) is fixedly connected to one end of the stirring rod (20) away from the transmission rod (19), and the outer surface of the scraper (21) is in contact with the inner wall of the stirring tank (3).

6. A concrete underpass pouring device according to claim 5, characterized in that: The upper surface of the mixing tank (3) is fixedly connected to a feeding funnel (5), and the lower surface of the mixing tank (3) is fixedly connected to a solenoid valve (17).

7. A concrete underpass pouring device according to claim 6, characterized in that: A negative pressure pump (4) is fixedly connected to the upper surface of the support plate (1). The output end of the negative pressure pump (4) is fixedly connected to the lower surface of the solenoid valve (17). The output end of the negative pressure pump (4) is fixedly connected to the end of the conveying pipe (7) away from the discharge funnel (6).

8. A concrete underpass pouring device according to claim 7, characterized in that: The material conveying pipe (7) has a deceleration groove (18) inside, and the lower surface of the support plate (1) is provided with casters (2).

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