A pouring device for concrete jacking construction of steel columns

Abstract

This utility model discloses a pouring device for concrete jacking construction of steel columns, relating to the field of concrete pouring technology. The pouring device includes a steel pipe with a pouring mechanism on one side for conveying concrete into the pipe. The pouring mechanism includes a feeding assembly comprising a fixed pipe fixedly installed on one side of the bottom of the steel pipe, a connecting pipe fixedly installed at one end of the fixed pipe, a limit frame fixedly installed on one side of the connecting pipe, an electric actuator fixedly installed on one side of the limit frame, and a transmission rod fixedly installed at one end of the electric actuator. When a check operation is required, the electric actuator can directly output stable power, which is fixed to the connecting pipe by the limit frame to ensure accurate power output direction. Subsequently, the electric actuator pushes the transmission rod, which drives the sealing column to slide along the inner wall of the connecting pipe. The entire process does not require waiting for the components to self-reset, resulting in a fast response speed.

Description

Technical Field

[0001] This utility model relates to the field of concrete pouring technology, specifically a pouring device for concrete jacking construction of steel columns. Background Technology

[0002] With the advancement of building science and technology, the construction of steel-concrete composite columns using jacking concrete has emerged. The construction of jacking concrete composite columns involves slowly jacking concrete upwards from the base of the steel column, using specialized devices such as stop valves and pressure relief holes to smoothly pour the concrete into the steel tube. During construction, the concrete inside the column is subjected to jacking pressure, effectively expelling air from the steel column, especially under the diaphragms, thus improving the concrete density and avoiding defects such as insufficient density and segregation under the diaphragms.

[0003] The existing Chinese utility model patent with publication number CN222667632U discloses a steel pipe concrete jacking device, including a steel pipe column. A feed pipe is installed on the outer wall of the bottom end of the steel pipe column. The feed pipe includes an integrally formed outer pipe and an inner pipe. The outer pipe is welded and fixed to the outer wall of the steel pipe column. The inner pipe is a 90-degree bend, with the end of the inner pipe away from the outer pipe bent upwards. A connecting pipe is fixedly connected to the top of the steel pipe column, and a top plate is fixed to the top of the connecting pipe. The top plate has vent holes. Multiple grout outlet pipes are installed on the circumferential wall of the connecting pipe. This utility model has the technical effect of reducing the displacement of the steel pipe column during concrete jacking.

[0004] The aforementioned concrete jacking device prevents concrete backflow by using a valve plate. During the jacking and pouring process, the concrete density at the center opening of the valve plate is high, which can make it difficult for the valve plate to fall and close during use. This makes the backflow prevention operation very inconvenient. In addition, the diameter of the "through hole" on the valve plate is fixed. If the concrete aggregate gradation fluctuates, it can easily block the through hole, causing pumping to be interrupted. This requires stopping the machine for cleaning, which affects construction efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a pouring device for concrete jacking construction of steel columns, which solves the problems of valve plates failing to descend quickly, affecting the backflow prevention effect, and valve plates being prone to clogging.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A concrete pouring device for steel column jacking construction includes a steel pipe, and a pouring mechanism is provided on one side of the steel pipe for conveying concrete into the steel pipe. The pouring mechanism includes: The feeding assembly includes a fixed pipe fixedly installed on one side of the bottom end of a steel pipe, a connecting pipe fixedly installed at one end of the fixed pipe, a limit frame fixedly installed on one side of the connecting pipe, an electric push rod fixedly installed on one side of the limit frame, a transmission rod fixedly installed at one end of the electric push rod, a sealing column fixedly installed at the end of the transmission rod, and a rubber ring fitted on the outside of the sealing column. The venting assembly, located at the top of the steel pipe, is used to expel air from inside the steel pipe during the pouring process.

[0007] Preferably, the exhaust assembly includes an exhaust pipe fixedly installed on the top of the steel pipe, a slurry discharge pipe fixedly installed on the outside of the exhaust pipe, a cap fitted on the top of the exhaust pipe, a limiting tube fitted inside the cap, a guide frame fixedly installed at the center of the limiting tube, an exhaust hole provided at the top of the guide frame, a movable tube inserted through the outside of the guide frame, and a filter screen fitted inside the movable tube.

[0008] Preferably, the fixing pipe penetrates the side wall of the steel pipe and communicates with the inner cavity of the steel pipe, the connecting pipe is connected to the fixing pipe through a flange structure and communicates with the inner cavity of the steel pipe through the fixing pipe, and the connecting pipe is a tee structure.

[0009] Preferably, the top of the connecting pipe is provided with a flange structure for connecting the pump body, the electric actuator is symmetrically installed on both sides of the connecting pipe through a limiting bracket, and the sealing column and the connecting pipe form a sliding connection.

[0010] Preferably, the discharge pipe is installed in an "X" shape on the outside of the exhaust pipe with the center of the exhaust pipe as the reference, the top surface of the cover is flush with the top surface of the exhaust pipe, and the top of the limiting pipe and the guide frame are flush with the cover.

[0011] Preferably, the bottom of the guide frame is provided with a disc-shaped limiting protrusion, the movable tube is slidably connected to the limiting tube and the guide frame, and the filter screen has a fan-shaped structure.

[0012] Beneficial effects This utility model provides a pouring device for concrete jacking construction of steel columns. Compared with the prior art, it has the following advantages: (1) The concrete jacking and pouring device for steel columns achieves backflow prevention through the coordinated operation of electric actuators, transmission rods, sealing columns, and rubber rings. When backflow prevention is required, the electric actuator can directly output stable power, which is fixed to the connecting pipe by a limit bracket to ensure accurate power output direction. Then, the electric actuator pushes the transmission rod, which drives the sealing column to slide along the inner wall of the connecting pipe. The entire process does not require waiting for the components to reset automatically, and the response speed is fast. At the same time, the rubber ring on the outside of the sealing column can fit tightly against the inner wall of the connecting pipe, further ensuring the sealing backflow prevention effect. This effectively avoids the situation where the traditional valve plate cannot fall and close quickly due to the high density of concrete and jamming, ensuring that the backflow prevention operation is timely and reliable.

[0013] (2) In the concrete jacking construction of the steel column, the connecting pipe of the feeding component adopts a three-way structure. The concrete can directly enter the steel pipe through the connection between the connecting pipe and the fixed pipe without passing through the "through hole" of the traditional valve plate, which reduces the risk of blockage in the conveying path. At the same time, the movable pipe in the exhaust component forms a sliding connection with the guide frame and the limiting pipe. During the concrete conveying process, the filter screen in the movable pipe can intercept solid particles in the concrete and prevent particles from entering the exhaust hole at the top of the guide frame and causing blockage. Moreover, the movable pipe can slide up and down with the change of air pressure in the steel pipe, further avoiding particle accumulation and blockage of the exhaust channel, ensuring that the concrete conveying is always smooth and that there is no need for frequent shutdowns for cleaning, which effectively improves the construction efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rubber ring structure of this utility model; Figure 3 This is a schematic diagram of the exhaust pipe installation structure of this utility model; Figure 4 This is a schematic diagram of the filter installation structure of this utility model; In the diagram: 1. Steel pipe; 2. Pouring mechanism; 21. Feeding assembly; 211. Fixed pipe; 212. Connecting pipe; 213. Limiting frame; 214. Electric actuator; 215. Transmission rod; 216. Sealing column; 217. Rubber ring; 22. Exhaust assembly; 221. Exhaust pipe; 222. Slurry discharge pipe; 223. Cover; 224. Limiting pipe; 225. Guide frame; 226. Exhaust hole; 227. Movable pipe; 228. Filter screen. Detailed Implementation

[0015] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 This utility model provides a technical solution: a pouring device for concrete jacking construction of steel columns includes a steel pipe 1, and a pouring mechanism 2 is provided on one side of the steel pipe 1 for conveying concrete into the steel pipe 1. The pouring mechanism 2 includes: a feeding assembly 21, including a fixed pipe 211 fixedly installed on one side of the bottom end of the steel pipe 1, a connecting pipe 212 fixedly installed at one end of the fixed pipe 211, a limit frame 213 fixedly installed on one side of the connecting pipe 212, an electric actuator 214 fixedly installed on one side of the limit frame 213, and a transmission rod 215 fixedly installed at one end of the electric actuator 214 for transmission. A sealing column 216 is fixedly installed at the end of the rod 215. A rubber ring 217 is fitted on the outside of the sealing column 216. The fixing pipe 211 penetrates the side wall of the steel pipe 1 and communicates with the inner cavity of the steel pipe 1. The connecting pipe 212 is connected to the fixing pipe 211 through a flange structure and communicates with the inner cavity of the steel pipe 1 through the fixing pipe 211. The connecting pipe 212 has a three-way structure. A flange structure for connecting the pump body is provided at the top of the connecting pipe 212. The electric push rod 214 is symmetrically installed on both sides of the connecting pipe 212 through the limit frame 213. The sealing column 216 and the connecting pipe 212 form a sliding connection.

[0017] Specifically, the steel pipe 1 is connected to the connecting pipe 212 via the fixed pipe 211. A flange structure for connection to the pump body is reserved above the connecting pipe 212. The concrete pump can connect to the connecting pipe 212 via the flange structure and deliver concrete into the steel pipe 1 through the connecting pipe 212 and the fixed pipe 211. After delivery, the electric actuators 214 on both sides of the connecting pipe 212 can drive the transmission rod 215 to move the sealing column 216, so that the sealing column 216 is located at the intersection of the branch above the connecting pipe 212 and the horizontal tubular structure to prevent concrete backflow.

[0018] An exhaust assembly 22, located at the top of the steel pipe 1, is used to expel air from inside the steel pipe 1 during the pouring process. The exhaust assembly 22 includes an exhaust pipe 221 fixedly installed at the top of the steel pipe 1, a slurry discharge pipe 222 fixedly installed on the outside of the exhaust pipe 221, a cap 223 fitted into the top of the exhaust pipe 221, a limit tube 224 fitted into the inside of the cap 223, a guide frame 225 fixedly installed at the center of the limit tube 224, an exhaust hole 226 at the top of the guide frame 225, and an exhaust port 226 extending through the outside of the guide frame 225. The movable pipe 227 is installed, and the filter screen 228 is fitted inside the movable pipe 227. The slurry discharge pipe 222 is installed in an "X" shape on the outside of the exhaust pipe 221 with the center of the exhaust pipe 221 as the reference. The top surface of the cover 223 is flush with the top surface of the exhaust pipe 221. The top of the limiting pipe 224 and the guide frame 225 are flush with the cover 223. The bottom of the guide frame 225 is provided with a disc-shaped limiting protrusion. The movable pipe 227, the limiting pipe 224, and the guide frame 225 are all connected in a sliding manner. The filter screen 228 has a fan-shaped structure.

[0019] Specifically, in the initial stage of pouring, before the top of the concrete contacts the bottom surface of the cap 223, the gas inside the steel pipe 1 can be discharged through the grout discharge pipe 222 and the limiting pipe 224. After the top of the concrete contacts the bottom surface of the cap 223, with the continuous delivery of the pump, the concrete can be discharged through the grout discharge pipe 222, and the internal air can drive the movable pipe 227 to move upward a certain distance. The filter screen 228 can intercept solid particles to prevent the air inside the steel pipe 1 from being unable to be discharged normally due to the blockage of the exhaust hole 226 at the end of the pouring stage, thus preventing the situation of voids. At the same time, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0020] During operation, the concrete pump is first connected to the connecting pipe 212 via the flange structure at the top of the connecting pipe 212. At this time, the electric actuator 214 is in the retracted state, driving the transmission rod 215 to position the sealing column 216 so as not to obstruct the connection between the connecting pipe 212 and the fixed pipe 211. Then, the pump is started, and the concrete passes through the connecting pipe 212 and the fixed pipe 211 in sequence into the steel pipe 1. As the concrete gradually rises inside the steel pipe 1, the air inside the steel pipe 1 is first discharged through the slurry discharge pipe 222 outside the exhaust pipe 221. At the same time, some air can also be discharged through the gap between the limiting pipe 224 inside the cover 223 and the outside of the guide frame 225. When the concrete rises to contact the bottom surface of the cover 223, the continuously delivered concrete will be discharged from the slurry discharge pipe 222. The remaining air in the steel pipe 1 will push the movable pipe 227 to slide upward along the guide frame 225 and the limiting pipe 224. The air will be discharged through the exhaust hole 226 at the top of the guide frame 225. The filter screen 228 in the movable pipe 227 will intercept solid particles in the concrete to prevent the exhaust hole 226 from being blocked. When it is observed that the concrete discharged from the grout discharge pipe 222 is free of air bubbles and is dense, the delivery pump is turned off and the electric actuator 214 is started at the same time. The electric actuator 214 is fixed in position by the limiting frame 213 and pushes the transmission rod 215, so that the transmission rod 215 drives the sealing column 216 to slide in the connecting pipe 212 until the rubber ring 217 on the outside of the sealing column 216 is tightly attached to the inner wall of the connecting pipe 212, blocking the connection between the connecting pipe 212 and the fixed pipe 211, thus completing the concrete pouring and check valve.

[0021] 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.

[0022] 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 pouring device for concrete jacking construction of steel columns, comprising a steel pipe (1), characterized in that: A pouring mechanism (2) is provided on one side of the steel pipe (1) for conveying concrete into the steel pipe (1). The pouring mechanism (2) includes: The feeding assembly (21) includes a fixed pipe (211) fixedly installed on one side of the bottom end of the steel pipe (1). A connecting pipe (212) is fixedly installed at one end of the fixed pipe (211). A limit frame (213) is fixedly installed on one side of the connecting pipe (212). An electric push rod (214) is fixedly installed on one side of the limit frame (213). A transmission rod (215) is fixedly installed at one end of the electric push rod (214). A sealing column (216) is fixedly installed at the end of the transmission rod (215). A rubber ring (217) is fitted on the outside of the sealing column (216). An exhaust assembly (22) is provided at the top of the steel pipe (1) to exhaust the air inside the steel pipe (1) during the pouring process.

2. The pouring device for concrete jacking construction of steel columns according to claim 1, characterized in that: The exhaust assembly (22) includes an exhaust pipe (221) fixedly installed on the top of the steel pipe (1), a slurry discharge pipe (222) fixedly installed on the outside of the exhaust pipe (221), a cap (223) fitted on the top of the exhaust pipe (221), a limiting tube (224) fitted inside the cap (223), a guide frame (225) fixedly installed at the center of the limiting tube (224), an exhaust hole (226) provided at the top of the guide frame (225), a movable tube (227) inserted on the outside of the guide frame (225), and a filter screen (228) fitted inside the movable tube (227).

3. The pouring device for concrete jacking construction of steel columns according to claim 1, characterized in that: The fixed pipe (211) penetrates the side wall of the steel pipe (1) and communicates with the inner cavity of the steel pipe (1). The connecting pipe (212) is connected to the fixed pipe (211) through a flange structure and communicates with the inner cavity of the steel pipe (1) through the fixed pipe (211). The connecting pipe (212) is a three-way structure.

4. The pouring device for concrete jacking construction of steel columns according to claim 1, characterized in that: The top of the connecting pipe (212) is provided with a flange structure for connecting the pump body. The electric push rod (214) is symmetrically installed on both sides of the connecting pipe (212) through the limiting frame (213). The sealing column (216) and the connecting pipe (212) form a sliding connection.

5. A pouring device for concrete jacking construction of steel columns according to claim 2, characterized in that: The discharge pipe (222) is installed in an "X" shape on the outside of the exhaust pipe (221) with the center of the exhaust pipe (221) as the reference. The top surface of the cover (223) is flush with the top surface of the exhaust pipe (221). The top of the limiting pipe (224) and the guide frame (225) are flush with the cover (223).

6. The pouring device for concrete jacking construction of steel columns according to claim 2, characterized in that: The bottom of the guide frame (225) is provided with a disc-shaped limiting protrusion. The movable tube (227) is slidably connected to the limiting tube (224) and the guide frame (225). The filter screen (228) has a fan-shaped structure.

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