Concrete slab pouring device and pouring method for civil engineering construction

Abstract

The present application relates to the field of building construction technology, and discloses a concrete slab casting device for civil engineering construction and a casting method thereof. The present invention provides a concrete slab casting device for civil engineering construction, comprising a concrete placing boom body, and also comprising a main discharge pipe fixedly mounted on the concrete placing boom body, wherein a fixed plate is fixedly mounted on the outer side of the bottom end of the main discharge pipe for limited rotation, a bellows that is easy to bend is fixedly mounted on the bottom end of the fixed plate, an auxiliary discharge pipe is fixedly mounted on the bottom end of the bellows, and a connecting plate is fixedly mounted on the outer side of the auxiliary discharge pipe. The present invention adjusts the operating state of the bellows through support plates and pull rods, making it easier for construction workers to cast narrow areas, and can prevent the bellows from bending and shaking when constructing flat areas, reducing the probability of construction workers' casting point deviation during construction, reducing rework and repair work caused by casting point deviation, and improving casting quality and casting efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a concrete slab casting device and a casting method for civil engineering construction. Background Art

[0002] During the concrete slab pouring phase of a construction project, cement and other concrete materials are transported from the mixing plant to the construction site, where they are fed into the concrete placing boom's hopper. Driven by the boom's power system, the concrete flows out through the discharge hose at the boom's end. During this process, to precisely control the concrete's discharge direction and ensure it lands accurately at the intended pouring location, construction workers must hold the discharge hose and flexibly adjust its position and angle based on the specific shape, size, and construction requirements of the pouring area, ensuring that the concrete is evenly and orderly spread across the concrete slab.

[0003] In actual construction, the discharge hose is usually made of a material with a certain strength and rigidity to ensure it does not break or deform due to pressure during concrete pumping. This makes it difficult to bend the discharge hose. Therefore, when faced with a small area, the construction space is severely limited, and construction workers need to spend more effort to change the direction of the discharge hose to adapt to the pouring needs of the narrow space.

[0004] To address this issue, some concrete placing machines use easily foldable materials for their discharge hoses, ensuring they meet the requirements for pouring concrete in narrow areas. However, when pouring concrete slabs, narrow areas are relatively rare, while wide, flat areas are more common. If these hoses are made of easily foldable materials, the impact of the concrete inside the hose during pouring can cause the hose to sway, shifting the pouring point and resulting in uneven concrete distribution. To avoid this, workers must exert force to control the hose's swing. This not only affects the overall flatness and strength of the concrete slab, reducing pouring quality, but also consumes workers' physical strength, impacting pouring efficiency. Summary of the Invention

[0005] The present application proposes a concrete slab casting device and a casting method for civil construction, which has the advantages of switching the operating state of the corrugated pipe, so that the corrugated pipe can be switched between a rigid state and a flexible state, while meeting the construction requirements when casting in narrow areas and wide plane areas, thereby saving construction workers more effort when casting in narrow areas, reducing the probability of construction workers' casting point deviation during construction, preventing the corrugated pipe from bending and shaking and affecting the casting effect when constructing in a plane area, reducing rework and repair work caused by casting point deviation, saving workers' physical exertion, and improving casting quality and casting efficiency. It is used to solve the problem of reduced casting efficiency and casting quality when pouring concrete through a concrete placing machine because the discharge hose cannot meet various working conditions.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a concrete slab casting device for civil construction, comprising a placing boom body, and a main discharge pipe fixedly mounted on the placing boom body, a fixed plate being mounted on the outer side of the bottom end of the main discharge pipe for limited rotation, a bellows which is easily bent being fixedly mounted on the bottom end of the fixed plate, an auxiliary discharge pipe being fixedly mounted on the bottom end of the bellows, a connecting plate being fixedly sleeved on the outer side of the auxiliary discharge pipe, a plurality of pull rods being fixedly mounted between the fixed plate and the auxiliary discharge pipe, a plurality of support plates being slidingly mounted on the outer side of the bellows, and the plurality of support plates being respectively matched with the corresponding pull rods, and the state of the pull rods being controlled by adjusting the position of the support plates during construction, so that the bellows can be switched between a rigid state and a flexible state to adapt to different casting environments.

[0007] Furthermore, a connecting ring is fixedly installed on the top of the multiple support plates, a multiple connecting rods are fixedly installed on the outside of the connecting ring, and a pull ring is fixedly installed on the end of the multiple connecting rods away from the connecting ring. The construction personnel pull the support plate and the connecting ring up and down through the pull ring and the connecting rod to switch the corrugated pipe between a rigid state and a flexible state.

[0008] Furthermore, a support rod is fixedly installed on the outer side of the support plate, and a limiting sliding groove is provided on the connecting plate, which is slidingly connected to the support plate and the support rod. A card slot connected to the limiting sliding groove is also provided on the connecting plate, which is used to limit the support plate and the support rod.

[0009] Furthermore, the plurality of pull rods are distributed in a ring array, and are bounded by the cross-sectional diameter of the connecting plate, wherein the length of half of the pull rods is smaller than the length of the other half of the pull rods.

[0010] Furthermore, the corrugated tube is in an expanded state when it does not need to be bent, thereby making it easy for concrete attached to the inner wall of the corrugated tube due to bending to fall off.

[0011] Furthermore, a scraper ring is fixedly installed on the bottom ends of the multiple support plates. The scraper ring is placed below the connecting plate. The scraper ring is sleeved on the outside of the auxiliary discharge pipe, and the inner wall of the scraper ring fits with the outer wall of the auxiliary discharge pipe. It is used to scrape and clean the concrete attached to the outside of the auxiliary discharge pipe when the support plate slides up and down.

[0012] A method for pouring a concrete slab for civil engineering construction comprises the following steps:

[0013] S1. When pouring concrete slabs, the concrete pumped into the concrete placing boom is driven by the concrete placing boom's power system to flow out through the main discharge pipe, bellows, and auxiliary discharge pipe at the end of the concrete placing boom.

[0014] S2. Before construction reaches a narrow area, the bottom wall of the support rod is in contact with the top wall of the connecting plate, and the top of the connecting rod is in contact with the bottom wall of the fixed plate, supporting the fixed plate and the connecting plate, so that the corrugated pipe is in an expanded state to protect the corrugated pipe and prevent the corrugated pipe from bending and shaking and affecting the pouring efficiency;

[0015] S3. When construction reaches a narrow area, the support plate and support rod are slid downward through the pull ring to restore the corrugated pipe from a rigid state to a flexible state, and then the corrugated pipe is bent under the action of the pull rod to perform pouring construction in the narrow area.

[0016] The beneficial effects of the present invention are as follows:

[0017] The present application provides a concrete slab casting device and a casting method for civil construction. During the construction and casting process, the support plate and the support rod are driven to slide up and down by a pull ring to change the state of the corrugated pipe, so that the corrugated pipe can switch between a rigid state and a flexible state, which not only meets the bending requirements when casting in a narrow area, but also saves construction workers more effort when casting in a narrow area, reduces the probability of construction workers' casting point deviation during construction, but also protects the corrugated pipe and keeps the corrugated pipe in a rigid state when constructing a wide plane area, reduces the probability of construction workers' casting point deviation due to bending and shaking of the corrugated pipe during construction, and can control its direction and position more accurately, reducing rework and repair work caused by casting point deviation, saving workers' physical exertion, and improving casting quality and casting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only embodiments of the present invention. Those skilled in the art can also derive other drawings based on the provided drawings without inventive work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 This is a schematic structural diagram of the main discharge pipe, the bellows and the auxiliary discharge pipe in the present invention when the bellows does not need to be bent;

[0021] Figure 3 This is a schematic structural diagram of the main discharge pipe, the bellows and the auxiliary discharge pipe when the bellows of the present invention needs to be bent;

[0022] Figure 4 This is a schematic structural diagram of the support plate, pull ring and support rod of the present invention;

[0023] Figure 5It is a structural schematic diagram of the connecting plate, auxiliary discharge pipe and limiting chute of the present invention.

[0024] In the figure: 1. Concrete fabricating machine body; 2. Main discharge pipe; 3. Fixed plate; 4. Bellows; 5. Connecting plate; 6. Auxiliary discharge pipe; 7. Pull bar; 8. Support plate; 9. Connecting ring; 10. Connecting rod; 11. Pull ring; 12. Support rod; 13. Limiting slide; 14. Slot; 15. Scraper ring. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See Figures 1 to 5 A concrete slab pouring device for civil engineering construction and a pouring method thereof include a concrete placing boom body 1, which includes a main discharge pipe 2. Concrete pumped into the concrete placing boom body 1 flows out through the main discharge pipe 2 at the end of the concrete placing boom body 1 under the drive of the power system of the concrete placing boom body 1. A fixed plate 3 is installed on the outer side of the bottom end of the main discharge pipe 2 for limited rotation. The bottom end of the fixed plate 3 is fixedly connected to a corrugated pipe 4 for convenience of bending by construction workers. The top end of the corrugated pipe 4 is sleeved on the outer side of the bottom end of the main discharge pipe 2, so that the concrete will not overflow when flowing into the corrugated pipe 4 through the main discharge pipe 2.

[0027] An auxiliary discharge pipe 6 is fixedly installed at the bottom end of the bellows 4, and a connecting plate 5 is fixedly sleeved on the outside of the auxiliary discharge pipe 6. A plurality of pull strips 7 are fixedly installed between the fixed plate 3 and the connecting plate 5. The pull strips 7 are made of a material with a certain elasticity and resistance to pulling, such as polyurethane (PU) material, thermoplastic polyurethane elastomer (TPU) material and EPDM rubber material. The plurality of pull strips 7 are distributed in a circular array and are bounded by the cross-sectional diameter of the connecting plate 5. The length of half of the pull strips 7 is shorter than the length of the other half of the pull strips 7. Then, under the action of the elastic force of the short pull strip 7, the connecting plate 5 is always fixedly bent toward one side of the short pull strip 7 relative to the fixed plate 3, so that the bellows 4 is also toward the side of the short pull strip 7. Bending, when construction workers need to construct in a narrow area, they only need to rotate the fixed plate 3 according to the construction position, and drive the auxiliary discharge pipe 6 to rotate through the fixed plate 3 and the bellows 4. There is no need to frequently adjust the bending direction of the bellows 4 according to the construction position, which extends the service life of the bellows 4. Under the action of the elastic force of the pull rod 7, the construction workers do not need to hold the auxiliary discharge pipe 6 with their hands to maintain the bending degree of the bellows 4, which saves labor for the construction workers and reduces the probability of the casting point offset. The construction workers can control its direction and position more accurately, which saves more labor when the construction workers are pouring in a narrow area, reduces the probability of the casting point offset during construction, and improves the casting quality and efficiency.

[0028] See Figures 2 to 5 , multiple support plates 8 are slidably installed on the outside of the corrugated tube 4, and multiple support plates 8 are respectively adapted to the corresponding pull strips 7, and a connecting ring 9 is fixedly installed on the top of the multiple support plates 8. Multiple connecting rods 10 are fixedly installed on the outside of the connecting ring 9, and multiple connecting rods 10 are distributed in a ring array, and a pull ring 11 is fixedly installed on the end of the multiple connecting rods 10 away from the connecting ring 9. The construction personnel can pull the support plate 8 and the connecting ring 9 up and down by using the pull ring 11 and the connecting rod 10, and can also adjust the position of the auxiliary discharge pipe 6 by pulling the pull ring 11 during normal construction. A support rod 12 is fixedly installed on the outside of the support plate 8, and a limiting slide 13 is provided on the connecting plate 5, which is slidingly connected to the support plate 8 and the support rod 12. A card slot 14 connected to the limiting slide 13 is also provided on the connecting plate 5.

[0029] When the cam 12 is in the same horizontal plane as the top wall of the connecting plate 5, the construction workers can rotate the support plate 8 and the support rod 12 by the pull ring 11, so that the support plate 8 is rotated to the slot 14, so that the bottom wall of the support rod 12 is in contact with the top of the connecting plate 5. At this time, under the action of the elastic force of the pull rod 7, the top of the connecting rod 10 is in contact with the bottom wall of the fixed plate 3, thereby making the cam 12 in the expanded state, which can prevent the cam 12 from affecting the flow rate of concrete due to bending, and can also keep the cam 12 in a rigid state to prevent the cam 12 from bending and shaking due to the impact force of concrete when pouring a wide plane area, thereby affecting the accuracy of the pouring point, and avoiding workers consuming a lot of physical strength to control the swing of the cam 12, thereby ensuring the pouring quality and efficiency.

[0030] When the corrugated pipe 4 needs to be bent, the construction personnel can reversely rotate the support plate 8 and the support rod 12 through the pull ring 11, and press the support plate 8 and the support rod 12 downward to restore the corrugated pipe 4 from a rigid state to a flexible state, and then bend the corrugated pipe 4 under the action of the pull rod 7 to perform casting construction in a narrow area.

[0031] When the corrugated pipe 4 that has completed construction in a narrow area is restored to an expanded state from a bent state, the concrete attached to the inner wall of the corrugated pipe 4 due to bending gradually falls off as the corrugated pipe 4 expands, and some concrete with strong adhesion will also be washed away by the new concrete, thereby preventing the concrete from adhering to the inner wall of the corrugated pipe 4 for a long time.

[0032] See Figure 3 A scraper ring 15 is fixedly installed at the bottom ends of multiple support plates 8. The scraper ring 15 is placed below the connecting plate 5. The scraper ring 15 is sleeved on the outside of the auxiliary discharge pipe 6, and the inner wall of the scraper ring 15 fits with the outer wall of the auxiliary discharge pipe 6. As a result, the scraper ring 15 can scrape and clean the concrete attached to the outside of the auxiliary discharge pipe 6 during the process of sliding up and down with the support plate 8, preventing the concrete attached to the outer surface of the auxiliary discharge pipe 6 from solidifying and being difficult to clean after long-term use.

[0033] A method for pouring a concrete slab for civil engineering construction comprises the following steps:

[0034] S1. When pouring a concrete slab, the concrete pumped into the concrete placing boom body 1 flows out through the main discharge pipe 2, bellows 4, and auxiliary discharge pipe 6 at the end of the concrete placing boom body 1 under the drive of the concrete placing boom body 1 power system;

[0035] S2. Before construction reaches the narrow area, the bottom wall of the support rod 12 is in contact with the top wall of the connecting plate 5, and the top of the connecting rod 10 is in contact with the bottom wall of the fixed plate 3, supporting the fixed plate 3 and the connecting plate 5, so that the corrugated tube 4 is in an expanded state to protect the corrugated tube 4 and prevent the corrugated tube 4 from bending and shaking and affecting the pouring efficiency;

[0036] S3. When construction reaches a narrow area, the support plate 8 and the support rod 12 are slid downward through the pull ring 11, so that the corrugated tube 4 is restored to a flexible state from a rigid state, and then the corrugated tube 4 is bent under the action of the pull rod 7 to perform pouring construction in the narrow area.

[0037] Working principle:

[0038] When pouring a concrete slab through the concrete placing boom body 1, the concrete pumped into the concrete placing boom body 1 flows out through the main discharge pipe 2, the bellows 4 and the auxiliary discharge pipe 6 at the end of the concrete placing boom body 1 under the drive of the power system of the concrete placing boom body 1. When constructing a wide flat area of ​​a building, the bottom wall of the support rod 12 fits with the top wall of the connecting plate 5, and the top of the connecting rod 10 fits with the bottom wall of the fixed plate 3, supporting the fixed plate 3 and the connecting plate 5, so that the bellows 4 is in an expanded state, and at the same time, the bellows 4 is prevented from bending and shaking due to the shear force of the concrete, which affects the accuracy of the pouring point, and avoids workers consuming a lot of physical strength to control the swing of the bellows 4, thereby ensuring the pouring quality and efficiency. During construction, the construction workers can use the pull ring 11 to rotate the support plate 8 and the support rod 12 in the opposite direction, and press the support plate 8 and the support rod 12 downward to restore the corrugated tube 4 from a rigid state to a flexible state, and then bend the corrugated tube 4 under the action of the pull rod 7 to facilitate the flow of concrete to narrow areas. The state of the corrugated tube 4 is changed by sliding the support plate 8 up and down, so that the corrugated tube 4, which is easy to bend, can be bent when needed to meet the construction requirements when pouring narrow areas, saving time and effort, and can also maintain a rigid state when no bending is required, reducing the probability of the pouring point being offset due to the bending and shaking of the corrugated tube 4 during construction, reducing the rework and repair work caused by the offset of the pouring point, and improving the pouring quality and efficiency.

[0039] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A concrete slab pouring device for civil engineering construction, comprising a concrete placing boom body (1), characterized in that: The invention also includes a main discharge pipe (2) fixedly mounted on the material distributing machine body (1), a fixed plate (3) is fixedly mounted on the outer side of the bottom end of the main discharge pipe (2) for limited rotation, a bellows (4) which is easy to bend is fixedly mounted on the bottom end of the fixed plate (3), an auxiliary discharge pipe (6) is fixedly mounted on the bottom end of the bellows (4), a connecting plate (5) is fixedly sleeved on the outer side of the auxiliary discharge pipe (6), a plurality of pull rods (7) are fixedly mounted between the fixed plate (3) and the auxiliary discharge pipe (6), a plurality of support plates (8) are slidably mounted on the outer side of the bellows (4), and the plurality of support plates (8) are respectively matched with the corresponding pull rods (7), and the state of the pull rod (7) is controlled by adjusting the position of the support plate (8) during construction, thereby switching the bellows (4) between a rigid state and a flexible state to adapt to different casting environments.

2. A concrete slab pouring device for civil engineering construction according to claim 1, characterized in that: A connecting ring (9) is fixedly mounted on the top ends of the plurality of support plates (8), a plurality of connecting rods (10) are fixedly mounted on the outside of the connecting ring (9), and a pull ring (11) is fixedly mounted on the ends of the plurality of connecting rods (10) away from the connecting ring (9). Construction personnel pull the support plates (8) and the connecting ring (9) up and down through the pull ring (11) and the connecting rod (10) to switch the corrugated pipe (4) between a rigid state and a flexible state.

3. A concrete slab pouring device for civil engineering construction according to claim 2, characterized in that: A support rod (12) is fixedly mounted on the outer side of the support plate (8), and a limiting slide groove (13) is provided on the connecting plate (5) and is slidably connected to the support plate (8) and the support rod (12). A clamping groove (14) is also provided on the connecting plate (5) and is connected to the limiting slide groove (13) for limiting the support plate (8) and the support rod (12).

4. A concrete slab pouring device for civil engineering construction according to claim 3, characterized in that: The plurality of pull rods (7) are distributed in a ring array and are bounded by the cross-sectional diameter of the connecting plate (5), wherein the initial length of half of the pull rods (7) is smaller than the initial length of the other half of the pull rods (7).

5. A concrete slab pouring device for civil engineering construction according to claim 4, characterized in that: The corrugated pipe (4) is in an expanded state when it does not need to be bent, thereby making it easy for concrete attached to the inner wall of the corrugated pipe (4) due to bending to fall off.

6. A concrete slab pouring device for civil engineering construction according to claim 5, characterized in that: A scraper ring (15) is fixedly mounted on the bottom ends of the plurality of support plates (8), and the scraper ring (15) is placed below the connecting plate (5). The scraper ring (15) is sleeved on the outside of the auxiliary discharge pipe (6), and the inner side wall of the scraper ring (15) is in contact with the outer side wall of the auxiliary discharge pipe (6), so as to scrape and clean the concrete attached to the outside of the auxiliary discharge pipe (6) when the support plate (8) slides up and down.

7. A method for pouring concrete slabs for civil engineering construction, characterized in that: The pouring process using the concrete slab pouring device for civil engineering construction according to claim 6 comprises the following steps: S1. When pouring a concrete slab, the concrete pumped into the concrete placing boom body (1) flows out through the main discharge pipe (2), the bellows (4) and the auxiliary discharge pipe (6) at the end of the concrete placing boom body (1) under the drive of the power system of the concrete placing boom body (1); S2. Before construction reaches the narrow area, the bottom wall of the support rod (12) is in contact with the top wall of the connecting plate (5), and the top of the connecting rod (10) is in contact with the bottom wall of the fixed plate (3), supporting the fixed plate (3) and the connecting plate (5), so that the corrugated tube (4) is in an expanded state, thereby protecting the corrugated tube (4) and preventing the corrugated tube (4) from bending and shaking and affecting the pouring efficiency; S3. When the construction reaches a narrow area, the support plate (8) and the support rod (12) are slid downward by the pull ring (11), so that the corrugated pipe (4) is restored to a flexible state from a rigid state, and then the corrugated pipe (4) is bent under the action of the pull bar (7) to perform pouring construction in the narrow area.

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