Jacking type steel pipe concrete backflow device

Abstract

The invention provides a jacking type steel pipe concrete backflow device, and belongs to the technical field of steel pipe concrete backflow, the jacking type steel pipe concrete backflow device comprises a short pipe, a connecting pipe, a floor pouring assembly and a concrete delivery pump; the short pipe is welded to the bottom of the steel pipe column and matched with the connecting pipe to receive concrete conveyed by the concrete conveying pump, and jacking type conveying and backflow prevention are achieved. The floor pouring assembly is arranged on a floor and used for conveying concrete in different areas. The concrete conveying pump comprises a grinding assembly, a pressurizing conveying assembly, a filtering assembly and a defoaming assembly and is provided with multiple conveying ports; the grinding assembly ensures the fineness of concrete, the pressurized conveying assembly conveys the concrete, the filtering assembly filters the concrete, and the defoaming assembly prevents the concrete from generating cracks; concrete backflow during steel pipe concrete conveying can be avoided, the construction efficiency and quality are improved, and the construction cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of steel tube concrete return flow, and in particular relates to a jacking type steel tube concrete return flow device. Background Art

[0002] In modern building construction, steel tube concrete structures are widely used due to their excellent bearing capacity and seismic resistance. However, in the construction process of steel tube concrete, the pouring of concrete is a technical problem, especially how to ensure that the concrete can evenly fill the inside of the steel tube column and prevent the concrete from flowing back, which is crucial to ensure the stability and safety of the structure. Traditional concrete pouring methods have many shortcomings, such as uneven concrete pouring, easy formation of gaps inside the steel tube column, and low pouring efficiency due to concrete backflow. These problems not only affect the construction efficiency, but may also cause safety hazards to the structure.

[0003] In order to solve these problems, the industry has proposed a variety of solutions, such as using special pouring equipment, improving the concrete mix ratio, and adopting special pouring processes. However, these methods often require complex equipment support, or it is difficult to achieve the expected results in actual operation. Therefore, it is necessary to develop a new type of jacking steel tube concrete backflow prevention device to improve the efficiency and quality of concrete pouring, ensure that the concrete can fully fill the interior of the steel pipe column, prevent concrete backflow, and improve construction safety. Summary of the invention

[0004] In view of this, the present invention provides a jacking type steel tube concrete backflow device, which can avoid concrete backflow during steel tube concrete transportation, improve construction efficiency and quality, and reduce construction costs.

[0005] The present invention is achieved in that:

[0006] The present invention provides a jacking type steel tube concrete backflow prevention device, which is installed on a steel tube column and a building body and is used for pouring concrete thereon; the top of the building body is a floor; wherein the device comprises a short pipe, a connecting pipe and a floor pouring assembly, the connecting pipe and the floor pouring assembly are both connected to a concrete delivery pump, the concrete delivery pump is used to deliver concrete to the inside of the short pipe and the connecting pipe; the short pipe is welded to the bottom outer wall of the steel tube column, and the connecting pipe is fixedly connected to the side away from the steel tube column, the short pipe and the connecting pipe cooperate with each other to deliver concrete to the inside of the steel tube column in a jacking type and prevent the concrete from flowing back, so that the concrete can be fully filled in the inside of the steel tube column; the floor pouring The assembly is arranged on the floor, and is used for conveying concrete in different areas on the floor; the concrete conveying pump includes a grinding assembly, a pressurized conveying assembly, a filtering assembly and a defoaming assembly, and includes multiple conveying ports, and the grinding assembly is arranged inside its hopper, and the grinding assembly is used for stirring and grinding the concrete to be conveyed to ensure its fineness; the conveying port is connected to the pressurized conveying assembly, and is used for conveying concrete to the inside of the steel pipe column and on the floor; the filtering assembly is arranged at the position where the grinding assembly is connected to the pressurized conveying assembly, and is used for filtering concrete; the defoaming assembly is used for eliminating bubbles in the conveyed concrete, so as to avoid cracks in the concrete conveyed to the inside of the steel pipe column due to the inability to discharge bubbles.

[0007] On the basis of the above technical solution, the jacking type steel tube concrete backflow prevention device of the present invention can also be improved as follows:

[0008] Wherein, one end of the short tube away from the steel pipe column is fixedly arranged with the first clamping plate, and a second clamping plate is also arranged on the side of the first clamping plate away from the steel pipe column, and the first clamping plate and the second clamping plate have the same size; a plurality of protrusions and compression blocks are arranged at the connection point, and the protrusions and the compression blocks match each other, and are used to connect the first clamping plate and the second clamping plate, and a gap is arranged in the middle position of the first clamping plate and the second clamping plate; one end of the second clamping plate away from the first clamping plate is fixedly connected with the connecting pipe; a card interface is arranged on the first clamping plate and the second clamping plate, and the short tube, the card interface and the connecting pipe have the same size, and the center points are located on the same horizontal line; the anti-backflow valve is arranged in the middle gap between the first clamping plate and the second clamping plate, and the through hole on the anti-backflow valve corresponds to the hole of the short tube, the card interface and the connecting pipe; the bottom of the anti-backflow valve and the bottom wall position of the first clamping plate and the second clamping plate are provided with a mounting groove;

[0009] The diameter of the short tube is 125 mm and the length is 100 mm; the length and width of the first clamping plate and the second clamping plate are both 300 mm and the thickness is 15 mm; the length of the connecting tube is 450 mm.

[0010] Furthermore, a sealing valve is provided at the position where the first clamping plate is connected to the steel pipe column and at the position where the second clamping plate is connected to the connecting pipe. The sealing valve is made of rubber material and includes a fixing ring and a clamping ring. The fixing ring matches the position of the clamping interface on the first clamping plate and the second clamping plate, and protrudes and extends toward the position of the short pipe and the connecting pipe; the clamping ring is provided on the inner wall of the fixing ring, and its size is larger than that of the clamping ring, and extends toward the outer wall of the clamping ring; the inner wall diameter of the clamping ring is the same as the outer wall diameter of the short pipe and the connecting pipe, and a thread line is provided on its inner wall, and the thread line is used to strengthen the support and fixation of the sealing valve;

[0011] The second clamping plate extends toward the inner walls of the short tube and the connecting tube, and a compression spring is provided inside the position where the second clamping plate abuts against the inner walls of the short tube and the connecting tube. The compression spring is used to fix the clamping interface to the short tube and the connecting tube.

[0012] Furthermore, conical holes are provided at symmetrical positions of the bottom wall where the first clip plate and the second clip plate are connected, and a long rod is provided at the bottom of the anti-backflow valve, the length of the long rod is the same as the height of the mounting groove, and the top size of the conical hole is smaller than the size of the long rod, so as to support the long rod; a sliding groove is provided on the inner side wall of the structure where the first clip plate and the second clip plate are connected, and a protrusion of a corresponding shape is provided on the side wall of the anti-backflow valve, so as to limit the horizontal position of the anti-backflow valve inside the structure composed of the first clip plate and the second clip plate; the conical inner wall of the conical hole is made of hard rubber, and a hard spring is provided between the conical hole and the inner wall.

[0013] Furthermore, the anti-backflow valve is a Tesla valve, a steel plate is provided on the top of the valve and extends to the outside of the structure composed of the first clip plate and the second clip plate, a sealing rubber layer is provided on the outside of the steel plate, and the sealing rubber layer is used to fill the gap inside the structure composed of the first clip plate and the second clip plate; the size of the steel plate is larger than the size of the mounting groove, so that the anti-backflow valve moves downward when subjected to a downward impact force so that the anti-backflow valve fills the inside of the mounting groove to block the card interface; the direction of the anti-backflow valve is consistent with the direction of the short pipe and is arranged perpendicular to the direction of the steel pipe column.

[0014] Furthermore, the connecting pipe is sealedly connected to the output port of the concrete pump through a pump pipe, a clamping tooth, a pipe clamp and a clamping groove; a clamping tooth is provided on the outer wall of one end of the connecting pipe close to the pump pipe, a pipe clamp is provided on one end of the pump pipe close to the connecting pipe, and a clamping groove matching the clamping tooth is provided on the inner wall of the pipe clamp; the clamping tooth is fixedly connected to the output port of the concrete pump;

[0015] The connecting pipe is a curved structure, and the curvature of the curvature is greater than the curvature of a circle with the same diameter, so as to lengthen the conveying path of the concrete inside the connecting pipe.

[0016] Furthermore, a plurality of rubber tires are provided on the top of the floor casting component, and limiting holes are provided inside the plurality of rubber tires, and a long pump tube penetrating the rubber tire is provided inside the limiting hole, short pump tubes are connected to both sides of the long pump tube, and a casting hose is connected to the other end of the short pump tube, and the rubber tire is used for shock-absorbing and limiting the long pump tube, and the short pump tube performs regional casting of the floor casting component; a shock-absorbing assembly is provided inside the rubber tire, and the shock-absorbing assembly is an elastic belt structure fixed inside the rubber tire by screws; and the rubber tire is filled with a gravity block, and the bottom of the gravity block is adsorbed on the floor of the building through a pressure pump, so as to avoid displacement of the rubber tire caused by vibration generated during concrete transportation.

[0017] Furthermore, the number of the steel pipe columns is 4-8, and the outer wall of the steel pipe column is wrapped with a double-layer thermal insulation felt, the outer wall of the double-layer thermal insulation felt is provided with a fire-retardant cloth, the double-layer thermal insulation felt is used to achieve the thermal insulation effect of the concrete inside the steel pipe column in winter, and the fire-retardant cloth is used to achieve fire protection of the steel pipe column;

[0018] An infrared detector is arranged on the inner wall of the steel pipe column, and a sensor is fixedly connected to the inner wall of the steel pipe column. The infrared detector is used to perform real-time testing on the slump of concrete inside the steel pipe column, and the sensor is used to monitor the heat of concrete inside the steel pipe column.

[0019] Furthermore, the position where the short tube is connected to the steel pipe column is set as a parabolic structure, and the focus position of the parabola is located at the center point of the steel pipe column.

[0020] Furthermore, the defoaming component includes multiple vibration tubes, the outside of which is wound with spiral blades, which include multiple ones, respectively connected to vibration plates, and the vibration plates generate vibrations through vibration motors; the vibration tubes are inserted into the interior of the concrete to eliminate bubbles inside the concrete through vibration.

[0021] Compared with the prior art, the beneficial effects of the jacking type steel tube concrete return device provided by the present invention are:

[0022] Effective backflow prevention: Through the cooperation of the short pipe and the connecting pipe, the jacking-up transportation of concrete is realized, which effectively prevents the backflow of concrete and ensures that the concrete can fully fill the interior of the steel pipe column;

[0023] Improve construction efficiency: The design of the concrete pump includes grinding components, pressurized conveying components, filtering components and defoaming components. The coordinated work of these components improves the conveying efficiency and quality of concrete;

[0024] Ensure the quality of concrete: The grinding component mixes and grinds the concrete to ensure the fineness of the concrete; the filtering component filters the concrete to improve the purity of the concrete; the defoaming component eliminates the bubbles in the concrete to avoid cracks caused by the inability to discharge bubbles;

[0025] Structural stability: By setting the first clamping plate and the second clamping plate, and using the anti-backflow valve together, the structural stability of the device is enhanced, ensuring the continuity and reliability of concrete transportation;

[0026] Easy operation: The design of this device takes into account the convenience of actual operation. Through the design of the card interface and sealing valve, the installation and disassembly process is simplified and the construction efficiency is improved;

[0027] Strong adaptability: This device is suitable for steel pipes of different diameters and lengths, and has good versatility and adaptability;

[0028] High safety: through the coordinated use of infrared detectors and sensors, real-time monitoring of concrete slump and heat is achieved, improving the safety of construction;

[0029] Environmental protection and energy saving: The use of double-layer thermal insulation felt and fire-retardant cloth not only improves the thermal insulation effect of winter construction, but also enhances the fire resistance of steel pipe columns, which is in line with the architectural concept of environmental protection and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0031] Figure 1 It is a schematic diagram of a jacking type steel tube concrete return device;

[0032] Figure 2It is a schematic diagram of a short pipe of a jacking type steel tube concrete return device;

[0033] Figure 3 for Figure 2 A magnified view of middle;

[0034] Figure 4 It is a flow diagram of a first clamping plate and a backflow prevention valve of a jacking type steel tube concrete backflow device;

[0035] Figure 5 It is a schematic diagram of a first clamping plate and a backflow prevention valve of a jacking type steel tube concrete backflow device;

[0036] Figure 6 It is a cross-sectional view of a backflow prevention valve of a jacking type steel tube concrete backflow device;

[0037] Figure 7 It is a schematic diagram of a pump pipe of a jacking type steel tube concrete return device;

[0038] Figure 8 A schematic diagram of a concrete pump for a jacking type steel tube concrete return device;

[0039] Fig. 9 It is a cross-sectional view of a steel pipe column of a jacking type steel pipe concrete return device;

[0040] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0041] 10. Steel pipe column; 11. Double-layer insulation felt; 12. Fire-retardant cloth; 13. Infrared detector; 14. Sensor; 15. Building; 20. Short pipe; 21. First clamping plate; 22. Clamp interface; 23. Second clamping plate; 24. Mounting groove; 25. Anti-backflow valve; 26. Bump; 27. Compression block; 30. Connecting pipe; 31. Pump pipe; 32. Clamp teeth; 33. Pipe clamp; 34. Clamp groove; 40. Floor casting assembly; 41. Rubber tire; 42. Limit hole; 43. Long pump pipe; 44. Short pump pipe; 50. Concrete pump; 51. Grinding assembly; 52. Pressurized conveying assembly; 53. Filter assembly; 54. Defoaming assembly. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0043] like Figure 1 , Figure 2 , Fig. 9As shown, it is a first embodiment of a jacking type steel tube concrete backflow prevention device provided by the present invention. In this embodiment, it is installed on a steel pipe column 10 and a building body 15 for pouring concrete thereon; the top of the building body 15 is a floor; wherein, it comprises a short pipe 20, a connecting pipe 30 and a floor pouring assembly 40, the connecting pipe 30 and the floor pouring assembly 40 are both connected to a concrete delivery pump 50, and the concrete delivery pump 50 is used to deliver concrete to the inside of the short pipe 20 and the connecting pipe 30; the short pipe 20 is welded to the bottom outer wall of the steel pipe column 10, and the side away from the steel pipe column 10 is fixedly connected with the connecting pipe 30, and the mutual cooperation between the short pipe 20 and the connecting pipe 30 is used to jack-up concrete to the inside of the steel pipe column 10 and prevent the concrete from flowing back, so that the concrete can be fully filled in the steel pipe column 10 0; the floor casting assembly 40 is arranged on the floor, and is used for conveying concrete in different areas on the floor; the concrete delivery pump 50 includes a grinding assembly 51, a pressurized delivery assembly 52, a filtering assembly 53 and a defoaming assembly 54, including multiple delivery ports, and the grinding assembly 51 is arranged inside the hopper, and the grinding assembly 51 is used for stirring and grinding the concrete to be conveyed to ensure its fineness; the delivery port is connected with the pressurized delivery assembly 52, and is used to enable the concrete to be conveyed to the inside of the steel pipe column 10 and on the floor; the filtering assembly 53 is arranged at the position where the grinding assembly 51 is connected to the pressurized delivery assembly 52, and is used for filtering the concrete; the defoaming assembly 54 is used to eliminate bubbles in the conveyed concrete, so as to avoid cracks in the concrete conveyed to the inside of the steel pipe column 10 due to the inability to discharge bubbles.

[0044] like Figure 3-Figure 6 As shown, in the above technical solution, one end of the short tube 20 away from the steel pipe column 10 is fixedly arranged with the first clamping plate 21, and the side of the first clamping plate 21 away from the steel pipe column 10 is also provided with a second clamping plate 23, and the first clamping plate 21 and the second clamping plate 23 have the same size; a plurality of protrusions 26 and compression blocks 27 are provided at the connection, and the protrusions 26 and the compression blocks 27 match each other, and are used to connect the first clamping plate 21 and the second clamping plate 23, and a gap is provided in the middle position between the first clamping plate 21 and the second clamping plate 23; the second clamping plate 23 is away from One end of the first clamping plate 21 is fixedly connected to the connecting tube 30; a clamping interface 22 is provided on the first clamping plate 21 and the second clamping plate 23, and the short tube 20, the clamping interface 22 and the connecting tube 30 have the same size and the center points are located on the same horizontal line; an anti-backflow valve 25 is provided in the middle gap between the first clamping plate 21 and the second clamping plate 23, and the through hole on the anti-backflow valve 25 corresponds to the hole of the short tube 20, the clamping interface 22 and the connecting tube 30; a mounting groove 24 is provided at the bottom of the anti-backflow valve 25 and the bottom wall of the first clamping plate 21 and the second clamping plate 23;

[0045] The short tube 20 has a diameter of 125 mm and a length of 100 mm; the first clamping plate 21 and the second clamping plate 23 have a length and width of 300 mm and a thickness of 15 mm; the length of the connecting tube 30 is 450 mm.

[0046] Further, in the above technical solution, a sealing valve is provided at the position where the first clamping plate 21 is connected to the steel pipe column 10 and at the position where the second clamping plate 23 is connected to the connecting pipe 30. The sealing valve is made of rubber and includes a fixing ring and a clamping ring. The fixing ring matches the position of the clamping interface 22 on the first clamping plate 21 and the second clamping plate 23, and protrudes and extends toward the position of the short pipe 20 and the connecting pipe 30; the clamping ring is provided on the inner wall of the fixing ring, and its size is larger than that of the clamping ring, and extends toward the outer wall of the clamping ring; the inner wall diameter of the clamping ring is the same as the outer wall diameter of the short pipe 20 and the connecting pipe 30, and a threaded line is provided on its inner wall, and the threaded line is used to strengthen the support and fixation of the sealing valve;

[0047] The second clamping plate 23 extends toward the inner walls of the short tube 20 and the connecting tube 30 , and a compression spring is provided inside the position where the second clamping plate 23 abuts against the inner walls of the short tube 20 and the connecting tube 30 . The compression spring is used to fix the clamping interface 22 to the short tube 20 and the connecting tube 30 .

[0048] Furthermore, in the above technical solution, conical holes are provided at symmetrical positions of the bottom wall where the first clamping plate 21 and the second clamping plate 23 are connected, and a long rod is provided at the bottom of the anti-backflow valve 25. The length of the long rod is the same as the height of the mounting groove 24, and the top size of the conical hole is smaller than the size of the long rod, which is used to support the long rod; a sliding groove is provided on the inner side wall of the structure where the first clamping plate 21 and the second clamping plate 23 are connected, and a protrusion of a corresponding shape is provided on the side wall of the anti-backflow valve 25, which is used to limit the horizontal position of the anti-backflow valve 25 inside the structure composed of the first clamping plate 21 and the second clamping plate 23; the conical inner wall of the conical hole is made of hard rubber, and a hard spring is provided between the inner wall.

[0049] Furthermore, in the above technical solution, the anti-backflow valve 25 is a Tesla valve, a steel plate is provided on the top of the anti-backflow valve 25 and extends to the outside of the structure composed of the first clamping plate 21 and the second clamping plate 23, and a sealing rubber layer is provided on the outside of the steel plate, and the sealing rubber layer is used to fill the gap inside the structure composed of the first clamping plate 21 and the second clamping plate 23; the size of the steel plate is larger than the size of the mounting groove 24, so that the anti-backflow valve 25 moves downward when subjected to a downward impact force so that the anti-backflow valve 25 fills the inside of the mounting groove 24 to block the clamp interface 22; the direction of the anti-backflow valve 25 is consistent with the direction of the short pipe 20, and is arranged perpendicular to the direction of the steel pipe column 10.

[0050] like Figure 7As shown, further, in the above technical solution, the connecting pipe 30 and the output port of the concrete pump 50 are sealed and connected through the pump pipe 31, the clamping teeth 32, the pipe clamp 33 and the clamping groove 34. The outer wall of the connecting pipe 30 close to the pump pipe 31 is provided with the clamping teeth 32, and the end of the pump pipe 31 close to the connecting pipe 30 is provided with the pipe clamp 33. The inner wall of the pipe clamp 33 is provided with the clamping groove 34 matching the clamping teeth 32; the clamping teeth 32 are fixedly connected to the output port of the concrete pump 50;

[0051] The connecting pipe 30 is a curved structure, and the curvature of the curvature is greater than the curvature of a circle with the same diameter, so as to lengthen the conveying path of the concrete inside the connecting pipe 30 .

[0052] Furthermore, in the above technical scheme, a plurality of rubber tires 41 are arranged on the top of the floor casting component 40, and a limiting hole 42 is arranged inside each of the plurality of rubber tires 41. A long pump tube 43 passing through the rubber tire 41 is arranged inside the limiting hole 42, and short pump tubes 44 are connected to both sides of the long pump tube 43, and the other end of the short pump tube 44 is connected to a casting hose. The rubber tire 41 is used to perform shock-absorbing and position-limiting on the long pump tube 43, and the short pump tube 44 performs regional casting on the floor casting component 40; a shock-absorbing component is arranged inside the rubber tire 41, and the shock-absorbing component is an elastic belt structure, which is fixed to the inside of the rubber tire 41 by screws; and the inside of the rubber tire 41 is filled with a gravity block, and its bottom is adsorbed on the floor of the building body 15 through a pressure pump, so as to avoid the displacement of the rubber tire 41 caused by the vibration generated during the concrete transportation process.

[0053] like Figure 8 As shown, further, in the above technical solution, the number of steel pipe columns 10 is 4-8, and the outer wall of the steel pipe column 10 is wrapped with a double-layer thermal insulation felt 11, and the outer wall of the double-layer thermal insulation felt 11 is provided with a fire-retardant cloth 12, the double-layer thermal insulation felt 11 is used to achieve the thermal insulation effect of the concrete inside the steel pipe column 10 in winter, and the fire-retardant cloth 12 is used to achieve fire protection of the steel pipe column 10;

[0054] An infrared detector 13 is provided on the inner wall of the steel pipe column 10 , to which a sensor 14 is fixedly connected. The infrared detector 13 is used to perform real-time testing of the slump of concrete inside the steel pipe column 10 , and the sensor 14 is used to monitor the heat of concrete inside the steel pipe column 10 .

[0055] Furthermore, in the above technical solution, the position where the short tube 20 is connected to the steel pipe column 10 is set to a parabolic structure, and the focus position of the parabola is located at the center point of the steel pipe column 10.

[0056] Furthermore, in the above technical solution, the defoaming component 54 includes multiple vibration tubes, the outside of which is wound with spiral blades, which include multiple ones, which are respectively connected to vibration plates, and the vibration plates generate vibrations through vibration motors; the vibration tubes are inserted into the interior of the concrete to eliminate bubbles inside the concrete through vibration.

[0057] Specifically, the principle of the present invention is:

[0058] Installation preparation: First, select appropriate short pipes, connecting pipes and floor casting components according to the diameter and length of the steel pipe column. Weld the short pipe to the bottom outer wall of the steel pipe column and ensure that the welding is firm;

[0059] Connect the concrete pump: seal the concrete pump outlet with the connecting pipe through the pump pipe, clamp teeth, pipe clamp and slot to ensure there is no leakage at the connection;

[0060] Install the anti-backflow valve: install the anti-backflow valve between the first clamping plate and the second clamping plate, and ensure that the through hole of the anti-backflow valve corresponds to the holes of the short pipe, the clamping interface and the connecting pipe;

[0061] Concrete pouring: Start the concrete pump and convey the concrete into the steel pipe column through the pump. During the conveying process, the grinding component stirs and grinds the concrete, the pressurized conveying component conveys the concrete into the steel pipe column, the filtering component filters the concrete, and the defoaming component eliminates bubbles in the concrete;

[0062] Floor pouring: Concrete is transported in different areas on the floor through floor pouring components. The use of rubber tires and shock-absorbing components ensures the stability of the pouring process and reduces vibration;

[0063] Monitoring and adjustment: The slump and heat of concrete are monitored in real time through infrared detectors and sensors, and the concrete mix ratio and delivery parameters are adjusted according to the monitoring results to ensure the quality of concrete;

[0064] Insulation and fire prevention: Wrap the outer wall of the steel pipe column with double-layer insulation felt and set fire-retardant cloth on the outer wall to achieve winter insulation and fire prevention;

[0065] Finish pouring: After the concrete pouring is completed, turn off the concrete pump, remove the connecting pipes and floor pouring components, and perform necessary follow-up treatments on the steel pipe columns, such as curing and maintenance;

[0066] Through the above steps, efficient and high-quality pouring of steel tube concrete can be achieved while ensuring the safety and environmental protection of the construction.

Claims

1. A jacking type steel tube concrete backflow prevention device, installed on a steel tube column (10) and a building body (15), for pouring concrete thereon; the top of the building body (15) is a floor; characterized in that: The invention comprises a short pipe (20), a connecting pipe (30) and a floor casting assembly (40), wherein the connecting pipe (30) and the floor casting assembly (40) are both connected to a concrete delivery pump (50), and the concrete delivery pump (50) is used to deliver concrete to the inside of the short pipe (20) and the connecting pipe (30); the short pipe (20) is welded to the bottom outer wall of the steel pipe column (10), and the connecting pipe (30) is fixedly connected to the side away from the steel pipe column (10); the short pipe (20) and the connecting pipe (30) cooperate with each other to deliver concrete to the inside of the steel pipe column (10) in a jacking manner and prevent the concrete from flowing back, so that the concrete can be fully filled in the inside of the steel pipe column (10); the floor casting assembly (40) is arranged on the floor and is used to partition the concrete on the floor The concrete delivery pump (50) comprises a grinding component (51), a pressurized delivery component (52), a filtering component (53) and a defoaming component (54), and comprises a plurality of delivery ports. The grinding component (51) is arranged inside the hopper, and the grinding component (51) is used to stir and grind the concrete to be delivered to ensure its fineness; the delivery port is connected to the pressurized delivery component (52) to enable the concrete to be delivered to the inside of the steel pipe column (10) and on the floor; the filtering component (53) is arranged at the position where the grinding component (51) is connected to the pressurized delivery component (52) to filter the concrete; the defoaming component (54) is used to eliminate bubbles in the delivered concrete to avoid cracks in the concrete delivered to the inside of the steel pipe column (10) due to the inability to discharge bubbles.

2. A jacking type steel tube concrete return device according to claim 1, characterized in that: One end of the short tube (20) away from the steel pipe column (10) is fixedly arranged with the first clamping plate (21), and a second clamping plate (23) is also arranged on the side of the first clamping plate (21) away from the steel pipe column (10), and the first clamping plate (21) and the second clamping plate (23) have the same size; a plurality of protrusions (26) and compression blocks (27) are arranged at the connection, and the protrusions (26) and the compression blocks (27) match each other and are used to connect the first clamping plate (21) and the second clamping plate (23), and a gap is arranged between the first clamping plate (21) and the second clamping plate (23); the second clamping plate (23) is away from the first clamping plate (21) One end is fixedly connected to the connecting tube (30); a card interface (22) is provided on the first card plate (21) and the second card plate (23); the short tube (20), the card interface (22) and the connecting tube (30) have the same size, and the center points are located on the same horizontal line; the anti-backflow valve (25) is provided in the middle space between the first card plate (21) and the second card plate (23); the through hole on the anti-backflow valve (25) corresponds to the hole of the short tube (20), the card interface (22) and the connecting tube (30); the bottom of the anti-backflow valve (25) and the bottom wall of the first card plate (21) and the second card plate (23) are provided with a mounting groove (24); The short tube (20) has a diameter of 125 mm and a length of 100 mm; the first clamping plate (21) and the second clamping plate (23) have a length and width of 300 mm and a thickness of 15 mm; and the connecting tube (30) has a length of 450 mm.

3. A jacking type steel tube concrete return device according to claim 2, characterized in that: Sealing valves are provided at the positions where the first clamping plate (21) is connected to the steel pipe column (10) and at the positions where the second clamping plate (23) is connected to the connecting pipe (30). The sealing valve is made of rubber and comprises a fixing ring and a clamping ring. The fixing ring matches the positions of the clamping interface (22) on the first clamping plate (21) and the second clamping plate (23) and protrudes and extends toward the positions of the short pipe (20) and the connecting pipe (30). The clamping ring is provided on the inner wall of the fixing ring, and its size is larger than that of the clamping ring, and extends toward the outer wall of the clamping ring. The inner wall diameter of the clamping ring is the same as the outer wall diameter of the short pipe (20) and the connecting pipe (30). A threaded line is provided on the inner wall, and the threaded line is used to strengthen the support and fixation of the sealing valve. The second clamping plate (23) extends toward the inner walls of the short tube (20) and the connecting tube (30), and a clamping spring is provided inside the position where the second clamping plate (23) abuts against the inner walls of the short tube (20) and the connecting tube (30). The clamping spring is used to fix the clamping interface (22) to the short tube (20) and the connecting tube (30).

4. A jacking type steel tube concrete return device according to claim 3, characterized in that: A conical hole is provided at a symmetrical position of the bottom wall where the first clamping plate (21) and the second clamping plate (23) are connected, and a long rod is provided at the bottom of the anti-backflow valve (25). The length of the long rod is the same as the height of the installation groove (24), and the top size of the conical hole is smaller than the size of the long rod, so as to support the long rod; a sliding groove is provided on the inner side wall of the structure where the first clamping plate (21) and the second clamping plate (23) are connected, and a protrusion of a corresponding shape is provided on the side wall of the anti-backflow valve (25), so as to limit the horizontal position of the anti-backflow valve (25) inside the structure formed by the first clamping plate (21) and the second clamping plate (23); the conical inner wall of the conical hole is made of hard rubber, and a hard spring is provided between the conical hole and the inner wall.

5. A jacking type steel tube concrete return device according to claim 4, characterized in that: The anti-backflow valve (25) is a Tesla valve, and a steel plate extending to the outside of the structure composed of the first clamping plate (21) and the second clamping plate (23) is arranged on the top of the anti-backflow valve (25). The steel plate is provided with a sealing rubber layer on the outside, and the sealing rubber layer is used to fill the gap inside the structure composed of the first clamping plate (21) and the second clamping plate (23). The size of the steel plate is larger than the size of the installation groove (24), so that the anti-backflow valve (25) moves downward when subjected to a downward knocking force, so that the anti-backflow valve (25) fills the inside of the installation groove (24) to block the clamping interface (22). The direction of the anti-backflow valve (25) is consistent with the direction of the short tube (20), and is arranged perpendicular to the direction of the steel pipe column (10).

6. A jacking type steel tube concrete return device according to claim 5, characterized in that: The connecting pipe (30) is sealedly connected to the output port of the concrete delivery pump (50) via a pump pipe (31), a clamping tooth (32), a pipe clamp (33) and a clamping groove (34); a clamping tooth (32) is provided on the outer wall of one end of the connecting pipe (30) close to the pump pipe (31); a pipe clamp (33) is provided on one end of the pump pipe (31) close to the connecting pipe (30); and a clamping groove (34) matching the clamping tooth (32) is provided on the inner wall of the pipe clamp (33); the clamping tooth (32) is fixedly connected to the output port of the concrete delivery pump (50); The connecting pipe (30) is a curved structure, the curvature of which is greater than the curvature of a circle with the same diameter, so as to lengthen the conveying path of concrete inside the connecting pipe (30).

7. A jacking type steel tube concrete return device according to claim 6, characterized in that: A plurality of rubber tires (41) are arranged on the top of the floor casting component (40), and a limiting hole (42) is arranged inside each of the plurality of rubber tires (41). A long pump pipe (43) penetrating the rubber tire (41) is arranged inside the limiting hole (42), and short pump pipes (44) are connected to both sides of the long pump pipe (43), and a casting hose is connected to the other end of the short pump pipe (44). The rubber tire (41) is used to perform shock-absorbing and position-limiting on the long pump pipe (43), and the short pump pipe (44) performs regional casting on the floor casting component (40); a shock-absorbing component is arranged inside the rubber tire (41), and the shock-absorbing component is an elastic band structure and is fixed inside the rubber tire (41) by screws; and a gravity block is filled inside the rubber tire (41), and the bottom of the gravity block is adsorbed on the floor of the building body (15) by a pressure pump, so as to prevent the displacement of the rubber tire (41) caused by the vibration generated during the concrete transportation process.

8. The jacking type steel tube concrete return device according to claim 7, characterized in that: The number of the steel pipe columns (10) is 4-8, and the outer wall of the steel pipe column (10) is wrapped with a double-layer thermal insulation felt (11), and the outer wall of the double-layer thermal insulation felt (11) is provided with a fire-retardant cloth (12), the double-layer thermal insulation felt (11) is used to achieve the thermal insulation effect of the concrete inside the steel pipe column (10) in winter, and the fire-retardant cloth (12) is used to achieve fire protection of the steel pipe column (10); An infrared detector (13) is arranged on the inner wall of the steel pipe column (10), and a sensor (14) is fixedly connected to the inner wall of the steel pipe column (10). The infrared detector (13) is used to perform real-time testing on the slump of concrete inside the steel pipe column (10), and the sensor (14) is used to monitor the heat of concrete inside the steel pipe column (10).

9. A jacking type steel tube concrete return device according to claim 8, characterized in that: The position where the short tube (20) is connected to the steel pipe column (10) is set as a parabola structure, and the focus position of the parabola is located at the center point of the steel pipe column (10).

10. A jacking type steel tube concrete return device according to claim 9, characterized in that: The defoaming component (54) comprises a plurality of vibration tubes, the outer portion of which is wound with spiral blades, which comprises a plurality of vibration tubes, each of which is connected to a vibration disk, and the vibration disk generates vibration through a vibration motor; The vibration pipe is inserted into the interior of the concrete to eliminate bubbles inside the concrete through vibration.

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