A pipeline conveying device for foamed concrete

Abstract

This invention discloses a pipeline conveying device for foamed concrete, relating to the field of concrete conveying. It includes a concrete conveying pump, a vibrating frame, a combined pipeline, and a pipeline placement rack. An inclined pipeline is installed on the vibrating frame, with its bottom end connected to a return pipeline. The inlet of the concrete conveying pump is connected to a flange pipeline, which in turn is connected to the outlet pipeline of a concrete mixer via a first valve. The return pipeline includes a first pipeline, a second pipeline, and a valve. The two ends of the first pipeline are connected to the first port of the valve and the outlet of the concrete conveying pump, respectively. The two ends of the second pipeline are connected to the second port of the valve and a first flexible hose, respectively. The two ends of the first return pipeline are connected to the second pipeline and the flange pipeline, respectively. The two ends of the second return pipeline are connected to the first pipeline and the outlet pipeline, respectively. The two ends of the combined pipeline are connected to the high end of the inclined pipeline and the pipeline placement rack, effectively preventing the problem of reduced pipeline cross-sectional area caused by the accumulation of solidified layers.

Description

Technical Field

[0001] This invention relates to the field of concrete conveying, specifically to a pipeline conveying device for foamed concrete. Background Technology

[0002] Foamed concrete, as a lightweight, heat-insulating, and sound-insulating new type of building material, is widely used in engineering scenarios such as building insulation layer laying, foundation pit backfilling, and lightweight wall pouring due to its low density and high porosity. Especially in high-rise building construction, its lightweight properties can effectively reduce the building's self-weight, making it the preferred material for high-rise wall and floor slab filling and insulation layer pouring. In the construction of foamed concrete pouring in high-rise buildings, the material mixed on the ground needs to be transported to the target area at a higher level through pipelines. High-rise construction scenarios place more stringent requirements on the conveying device: on the one hand, high-rise conveying requires long-distance vertical or inclined pipelines, and the total length of the pipelines often increases with the building height, making the material conveying path within the pipeline complex; on the other hand, high-rise construction is usually poured in sections by floor or area, and there are multiple long-term stops during the pouring process (such as waiting for the next area to be prepared after the pouring of a single floor, filling the pouring area, etc.), and the frequency of stoppages is much higher than in low-rise construction. The core characteristics of foamed concrete make it prone to severe pipe accumulation and solidification problems during long-distance shutdowns: Foamed concrete contains a large number of closed air bubbles, which prevent the concrete from falling off the inner wall of the pipe due to its own weight. Secondly, the viscosity of concrete is highly correlated with the stability of air bubbles. During pipeline transportation, some air bubbles are prone to rupture on the inner wall of the pipe, causing the concrete slurry to adhere to the pipe wall and form an initial accumulation layer. When pouring is interrupted, the foamed concrete remaining in the pipeline loses its transport power and is in a static state. The water in the slurry gradually precipitates out, the cement components begin to hydrate, and at the same time, the air bubbles further rupture, causing the slurry to thicken and the accumulation layer adhering to the pipe wall to solidify rapidly. Since high-rise construction requires pouring floor by floor, the number of shutdowns can reach dozens. After each shutdown, the solidified accumulation layer will overlap with the subsequently transported material, causing the solidified layer on the inner wall of the pipeline to continuously thicken and the effective flow cross-sectional area of ​​the pipeline to gradually shrink. Furthermore, in high-rise, long-distance transportation, the accumulation of solidified layers on the inner wall of the pipeline can trigger a chain of problems: the shedding of the solidified layer can easily lead to the introduction of hard lumps into the subsequently transported materials, affecting the homogeneity and strength of the cast body; after the effective pipe diameter is reduced, the delivery pump needs to continuously output high pressure, which not only increases energy consumption but may also cause leakage at the pipe connection due to excessive pressure. There is an urgent need to develop a pipeline transportation device with efficient anti-solidification, convenient backflow, and flexible adaptation to long-distance transportation to solve the core problems of material accumulation, solidification blockage, and low transportation efficiency in existing technologies, and meet the needs of high-rise construction for transportation stability, construction efficiency, and material utilization. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pipeline conveying device for foamed concrete to solve the deficiencies of the prior art.

[0004] The objective of this invention is achieved through the following technical solution: a pipeline conveying device for foamed concrete, comprising a concrete conveying pump, a vibrating frame, a combined pipeline, and a pipeline placement frame. The pipeline placement frame is fixed to an external wall. An inclined pipeline is installed on the vibrating frame. The inclined pipeline has reciprocating linear degrees of freedom. The bottom end of the inclined pipeline is connected to a return pipeline via a first flexible hose. The return pipeline is connected to the discharge port of the concrete conveying pump. The inlet of the concrete conveying pump is connected to a flange pipeline. The flange pipeline is connected to the discharge pipe of a concrete mixer via a first valve. The return pipeline includes a first pipeline, a second pipeline, a first return pipe, a second return pipe, and a valve. The two ends of the first pipeline are respectively connected to the first port of the valve and the discharge port. The two ends of the second pipeline are respectively connected to the second port of the valve and the first flexible hose. The two ends of the first return pipe are respectively connected to the second pipeline and the flange pipeline. The two ends of the second return pipe are respectively connected to the first pipeline and the discharge pipe. The combined pipeline includes several second flexible hoses connected in sequence. The two ends of the combined pipeline are respectively connected to the high end of the inclined pipeline and the pipeline placement frame.

[0005] Furthermore, adjacent second hoses and inclined pipes are connected by quick-connect structures. Each quick-connect structure includes a male quick-connect tube and a female quick-connect tube. The two ends of the second hose are respectively connected to the male and female quick-connect tubes. Multiple male claws are fixed to the sidewall of the male quick-connect tube along its circumference. A male fitting groove is formed on the end face of the male quick-connect tube near the end face of the male quick-connect tube. Each male fitting groove contains a male arc-shaped block, which is fixed... The quick-connect male connector is equipped with a female connector. The female connector is fixed to the side wall of the quick-connect female connector. The female connector has a female mating groove on its end face near the quick-connect female connector. Each female mating groove is provided with a female arc-shaped block. The female arc-shaped block is fixedly connected to the quick-connect female connector. The female arc-shaped block and the male arc-shaped block are staggered along the axial direction of the quick-connect male connector. The male arc-shaped block and the female arc-shaped block are simultaneously fitted into the corresponding male mating groove and female mating groove.

[0006] Furthermore, one end of the male arc-shaped block extends to the outside of the male head mating groove and is provided with a male head wedge-shaped surface. The width of the male head wedge-shaped surface gradually increases along the direction close to the male head claw. One end of the female arc-shaped block extends to the outside of the female head mating groove and is provided with a female head wedge-shaped surface. The width of the female head wedge-shaped surface gradually increases along the direction close to the female head claw.

[0007] Furthermore, the quick-connect female tube has an annular sealing groove at the end away from the second flexible tube, and an annular sealing gasket is installed in the annular sealing groove. The quick-connect male tube also has an annular groove at the end away from the second flexible tube. When the quick-connect male tube is connected to the quick-connect female tube, the annular sealing gasket is interference-fitted into the annular groove.

[0008] Furthermore, the inner ring of the annular sealing groove is threaded, and a threaded sealing ring is fitted into the annular sealing groove. One end of the annular sealing gasket is fixed to the threaded sealing ring. An arc-shaped groove is coaxially formed on the side wall of the quick-connect female tube. The arc-shaped groove communicates with the annular sealing groove. A lever is fixed to the side wall of the threaded sealing ring, and the lever passes through the arc-shaped groove.

[0009] Furthermore, the sidewall of the inclined pipe is connected to multiple telescopic rods, the end of the telescopic rod away from the inclined pipe is connected to a vibration frame, a vibration spring is sleeved on the telescopic rod, and vibration rods are fixed on both sides of the inclined pipe, and the vibration rods have the freedom to reciprocate in the vertical direction.

[0010] Furthermore, a vibration drive mechanism is provided below the inclined pipe. The vibration drive mechanism includes a motor and a rotary table. A drive spindle is coaxially fixed at the bottom of the rotary table. The drive spindle is rotatably mounted on the vibration frame. The motor is mounted on the vibration frame. The output shaft of the motor is connected to the drive spindle via a coupling. Multiple vibration drive blocks are fixed at the top of the rotary table along its circumference. One end of the top of each vibration drive block is provided with a drive inclined surface. A rolling ball is rotatably mounted at the bottom of the vibration rod. The rolling ball is located on the rotation path of the drive inclined surface.

[0011] Furthermore, the telescopic rod includes a lower rod body and an upper rod body. One end of the lower rod body is fixedly connected to an inclined pipe, and the other end is provided with a small-diameter hole and a large-diameter hole. A limiting block is slidably fitted inside the large-diameter hole. The diameter of the limiting block is larger than the diameter of the small-diameter hole. One end of the upper rod body is movably inserted into the large-diameter hole and connected to the limiting block, and the other end is fixedly connected to a vibration frame.

[0012] Furthermore, the end of the combined pipe away from the inclined pipe is a quick-connect male pipe, and a U-shaped handle is connected to the quick-connect male pipe by screws. The pipe placement rack is equipped with a U-shaped placement rack, one end of the opening of the U-shaped placement rack is fixed to the pipe placement rack, and the other end of the opening of the U-shaped placement rack is slidably provided with a sliding rod. The sliding rod forms a notch for the U-shaped handle to pass through by sliding.

[0013] Furthermore, one end of the sliding rod of the U-shaped placement rack has a circular hole, a spring is installed in the circular hole, one end of the sliding rod is adapted to the circular hole, a limit groove is provided on the pipe placement rack, and the other end of the sliding rod is adapted to the limit groove.

[0014] The beneficial effects of this invention are:

[0015] 1. When pouring stops, place the end of the combined pipe away from the inclined pipe on the pipe placement rack, so that the combined pipe is in a suspended inclined state. The reciprocating linear motion of the inclined pipe will cause the combined pipe to vibrate. This vibration can be transmitted through the pipe wall to the residual foamed concrete inside, breaking the adhesion between the slurry and the pipe wall. At the same time, the slope of the combined pipe will cause the fallen material to move in the direction of return under the action of vibration inertia and gravity, avoiding the formation of a solidified layer. This effectively prevents the pipe cross-sectional area from shrinking due to the accumulation of solidified layers, significantly reducing the transportation resistance and blockage risk, and ensuring the continuity of long-distance transportation in high-rise buildings.

[0016] 2. When stopping pouring, close the first valve and the second valve, and turn on the concrete delivery pump. The foamed concrete that has been vibrated and returned is then transported back to the concrete mixer through the first return pipe and the second return pipe. This prevents the returned concrete from being stuck in the pipes and causing solidification and blockage. At the same time, the returned concrete is remixed to prevent quality problems caused by the segregation of foamed concrete materials and to ensure the homogeneity and strength of the pouring.

[0017] 3. Connect the quick-connect male pipe to the quick-connect female pipe, then rotate the quick-connect female pipe so that the male and female arc-shaped blocks simultaneously fit into the male and female mating grooves. Simultaneously, the male arc-shaped block presses against the inner bottom wall of the male and female mating grooves, and the female arc-shaped block presses against the inner top wall of the male and female mating grooves. This achieves rapid pipe connection, allowing for convenient and quick assembly and disassembly of the combined pipes to adjust their length during pouring on different floors, adapting to the distance requirements of different floors and pouring areas.

[0018] 4. The interference fit between the annular sealing gasket and the annular groove, combined with the compression adjustment function of the threaded sealing ring, allows the fit of the annular sealing gasket to be controlled by a lever, ensuring sealing reliability in high-pressure conveying scenarios and effectively preventing slurry leakage. The adjustable design of the threaded sealing ring can also adapt to the wear compensation of the sealing gasket, enabling the annular sealing gasket to maintain a high-strength sealing effect throughout its service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a pipeline conveying device for foamed concrete according to the present invention.

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the structure of the second flexible hose in a pipeline conveying device for foamed concrete according to the present invention.

[0022] Figure 4 This is a schematic diagram of the quick-connect male pipe in a pipeline conveying device for foamed concrete according to the present invention.

[0023] Figure 5 This is a schematic diagram of the structure of the vibrating frame in a pipeline conveying device for foamed concrete according to the present invention.

[0024] Figure 6 This is a schematic diagram of the installation of the return pipe in a pipeline conveying device for foamed concrete according to the present invention.

[0025] Figure 7 This is a schematic diagram of the internal structure of the telescopic rod in a pipeline conveying device for foamed concrete according to the present invention.

[0026] Figure 8 This is a schematic diagram of the pipe placement rack in a pipe-type conveying device for foamed concrete according to the present invention.

[0027] Figure 9 This is a schematic diagram of the internal structure of the U-shaped placement frame in a pipeline conveying device for foamed concrete according to the present invention.

[0028] Figure 10 This is a schematic diagram of the internal structure of the quick-connect male pipe in a pipeline conveying device for foamed concrete according to the present invention.

[0029] In the diagram, 1-concrete pump, 2-vibrating frame, 3-pipe placement rack, 4-inclined pipe, 5-first hose, 6-return pipe, 7-flange pipe, 8-first pipe, 9-second pipe, 10-first return pipe, 11-second return pipe, 12-valve, 13-first valve, 14-second hose, 15-quick-connect male pipe, 16-quick-connect female pipe, 17-male claw, 18-male mating groove, 19-female claw, 20-female mating groove, 21-male arc block, 22-female arc block, 23-male wedge surface, 24-female wedge surface 25-Annular sealing groove, 26-Annular sealing gasket, 27-Annular groove, 28-Threaded sealing ring, 29-Arc groove, 30-Pulse lever, 31-Vibration spring, 32-Vibration rod, 33-Motor, 34-Rotating table, 35-Drive spindle, 36-Vibration drive block, 37-Drive inclined plane, 38-Rolling ball, 39-Lower rod body, 40-Upper rod body, 41-Small diameter hole, 42-Large diameter hole, 43-Limiting block, 44-U-shaped handle, 45-U-shaped placement rack, 46-Sliding rod, 47-Round hole, 48-Spring, 49-Limiting groove, 50-Gravity ball. Detailed Implementation

[0030] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0031] Example 1

[0032] like Figures 1 to 10As shown, a pipeline conveying device for foamed concrete includes a concrete pump 1, a vibrating frame 2, a combined pipeline, and a pipeline placement frame 3. The pipeline placement frame 3 is fixed to an external wall. An inclined pipeline 4 is installed on the vibrating frame 2. The inclined pipeline 4 has a reciprocating linear degree of freedom. The bottom end of the inclined pipeline 4 is connected to a return pipeline 6 through a first flexible hose 5. The return pipeline 6 is connected to the discharge port of the concrete pump 1. The inlet of the concrete pump 1 is connected to a flange pipeline 7. The flange pipeline 7 is connected to the discharge pipe of the concrete mixer through a first valve 13. The return pipeline 6 includes a first pipeline 8, a second pipeline 9, a first return pipe 10, a second return pipe 11, and a valve 12. The two ends of the first pipeline 8 are respectively connected to the first port of the valve 12 and... The discharge port, the two ends of the second pipe 9 are respectively connected to the second port of valve 12 and the first hose 5, the two ends of the first return pipe 10 are respectively connected to the second pipe 9 and the flange pipe 7, the two ends of the second return pipe 11 are respectively connected to the first pipe 8 and the discharge pipe, the combined pipe includes several second hoses 14 connected in sequence, the two ends of the combined pipe are respectively connected to the high end of the inclined pipe 4 and the pipe placement frame 3, the length of the combined pipe is freely configured according to the height of the floor to be poured, initially, the pipe placement frame 3 is installed on the outer wall of the window of the corresponding floor by screws, after the pipe conveying device is assembled in place, the end of the combined pipe is pulled up to the corresponding floor by ropes, so that the combined pipe is arranged from the window of the floor to the pouring area, during pouring, the pipe is opened. Open the first valve 13 and valve 12 to transport the foamed concrete prepared in the concrete mixer using the concrete pump 1. The foamed concrete passes sequentially through the flange pipe 7, return pipe 6, first hose 5, inclined pipe 4, and combined pipe to the designated area. Once the required delivery volume is reached, close the concrete pump 1, first valve 13, and valve 12. Connect the second hose 14 at the end of the combined pipe to the pipe placement frame 3, making the combined pipe tilted and suspended. Then, the inclined pipe 4 performs reciprocating linear motion, causing the combined pipe to vibrate. The vibration energy is transmitted through the pipe wall to the residual foamed concrete inside, breaking the adhesion between the slurry and the pipe wall. At the same time, the slope of the combined pipe helps to decompose the foamed concrete. The fallen material moves towards the return direction under the influence of vibration inertia and gravity, preventing the formation of a solidified layer. This effectively prevents the reduction of pipe cross-sectional area caused by the accumulation of solidified layers, significantly reducing conveying resistance and the risk of blockage, and ensuring the continuity of long-distance, high-rise conveying. The returned foamed concrete accumulates in the return pipe 6. Then, the concrete delivery pump 1 is started. Since the first valve 13 and valve 12 are closed, the concrete in the concrete mixer will not be sent out. The concrete remaining in the return pipe 6 enters the concrete mixer through the first return pipe 10, the concrete delivery pump 1, the first pipe 8, the second return pipe 11, and the discharge pipe, preventing the returned concrete from solidifying and causing blockages in the pipe. At the same time, the returned concrete is remixed.To avoid quality problems caused by segregation of foamed concrete materials and ensure the homogeneity and strength of the pour, a vibratory return and reverse conveying method is used. When pouring stops, concrete retained in the pipes is returned to the concrete mixer. This prevents pipe blockage, improves the quality of the foamed concrete, and reduces waste.

[0033] Example 2

[0034] Based on Example 1, such as Figures 1 to 7 As shown, multiple telescopic rods are connected to the sidewalls of the inclined pipe 4. The ends of the telescopic rods away from the inclined pipe 4 are connected to the vibration frame 2. Vibration springs 31 are sleeved on the telescopic rods. Vibration rods 32 are fixed on both sides of the inclined pipe 4. The vibration rods 32 have the freedom to reciprocate in the vertical direction. A vibration drive mechanism is set below the inclined pipe 4. The vibration drive mechanism includes a motor 33 and a rotary table 34. A drive spindle 35 is coaxially fixed at the bottom of the rotary table 34. The drive spindle 35 is rotatably mounted on the vibration frame 2. The motor 33 is mounted on the vibration frame 2. The output shaft of the motor 33 is connected to the drive spindle 35 through a coupling. Multiple vibration drive blocks 36 are fixed on the top of the rotary table 34 along its own circumference. A drive inclined surface 37 is provided at one end of the top of the vibration drive block 36. A rolling ball 38 is rotatably set at the bottom of the vibration rod 32. The rolling ball 38 is located on the rotation path of the drive inclined surface 37 and drives the drive spindle 35 through the motor 33. The rotation drives the main shaft 35 to rotate the rotary table 34, which in turn drives the vibration drive block 36 on it to rotate. This causes the vibration drive block 36 to rotate closer to the rolling ball 38. The driving inclined surface 37 of the vibration drive block 36 first contacts the rolling ball 38. Under the action of the driving inclined surface 37, the vibration rod 32 drives the inclined pipe 4 to move upward. The inclined pipe 4 compresses the vibration spring 31, causing the telescopic rod to retract. When the rolling ball 38 disengages from the vibration drive block 36, the inclined pipe 4 returns to its original position under the reaction force of the vibration spring 31. When the next vibration drive block 36 contacts the rolling ball 38, the inclined pipe 4 completes the sequential movement and return action again. Thus, through the rotation of the rotary table 34, the inclined pipe 4 performs reciprocating linear motion, which in turn causes the combined pipe to vibrate, causing the foamed concrete attached inside to flow back into the return pipe 6. Then, in conjunction with the concrete delivery pump 1, the returned foamed concrete is transported back into the concrete mixer.

[0035] Furthermore, such as Figure 1 , Figure 5 and Figure 7As shown, the telescopic rod includes a lower rod body 39 and an upper rod body 40. One end of the lower rod body 39 is fixedly connected to the inclined pipe 4, and the other end is provided with a small diameter hole 41 and a large diameter hole 42. A limiting block 43 is slidably fitted inside the large diameter hole 42. The diameter of the limiting block 43 is larger than the diameter of the small diameter hole 41. One end of the upper rod body 40 is movably inserted into the large diameter hole 42 and connected to the limiting block 43. The other end is fixedly connected to the vibration frame 2. The relative sliding of the upper rod body 40 and the lower rod body 39 adapts to the reciprocating motion of the inclined pipe 4, and the limiting block 43 prevents the lower rod body 39 from separating from the upper rod body 40.

[0036] Example 3

[0037] Because foamed concrete needs to be poured progressively on each floor, the length of the modular pipes needs to be increased gradually. Traditional pipe connections use flange structures, requiring the sequential tightening of multiple bolt assemblies, which presents a problem of slow installation and disassembly. Therefore, based on Example 2, as... Figures 1 to 4As shown, adjacent second hoses 14 and inclined pipe 4 are connected to the second hoses 14 by quick-connect structures. The quick-connect structures include quick-connect male tubes 15 and quick-connect female tubes 16. The two ends of the second hoses 14 are respectively connected to quick-connect male tubes 15 and quick-connect female tubes 16. Multiple male claws 17 are fixed along the circumference of the sidewall of the quick-connect male tube 15. Male fitting grooves 18 are formed on the end face of the male claws 17 near the end face of the quick-connect male tube 15. Each male fitting groove 18 contains a male arc-shaped block 21, which is fixed... The quick-connect male connector 15 is connected to a female connector 19, which is fixed to the side wall of the quick-connect female connector 16. A female connector groove 20 is formed on the end face of the female connector 19 near the quick-connect female connector 16. A female arc-shaped block 22 is provided in each female connector groove 20, and the female arc-shaped block 22 is fixedly connected to the quick-connect female connector 16. The female arc-shaped block 22 and the male arc-shaped block 21 are staggered along the axial direction of the quick-connect male connector 15. The male arc-shaped block 21 and the female arc-shaped block 22 simultaneously fit into the corresponding male connector groove 18. Within the female connector fitting groove 20, the end of the inclined pipe 4 furthest from the first flexible hose 5 is connected to a quick-connect male connector 15. The quick-connect female connector 16 at one end of the combined pipe is connected to the quick-connect male connector 15. Two adjacent second flexible hoses 14 are also connected together via quick-connect male connectors 15 and quick-connect female connectors 16. Specifically, the quick-connect male connector 15 is brought into contact with the quick-connect female connector 16. At this time, the male claw 17 and female claw 19 are in a circumferentially interlocked state. Then, the quick-connect female connector 16 is rotated so that the male arc-shaped block 21 and the female arc-shaped block 22 simultaneously mate. Within the male fitting groove 18 and the female fitting groove 20, the male arc-shaped block 21 simultaneously abuts against the inner bottom wall of the male fitting groove 18 and the inner bottom wall of the female fitting groove 20, while the female arc-shaped block 22 simultaneously abuts against the inner top wall of the male fitting groove 18 and the inner top wall of the female fitting groove 20. This restricts the axial movement freedom between the quick-connect male pipe 15 and the quick-connect female pipe 16, thereby achieving rapid connection of the pipes. This allows for convenient and quick disassembly and adjustment of the length of the combined pipes when pouring concrete for different floors, adapting to the distance requirements of different floors and different pouring areas.

[0038] Example 4

[0039] Based on Example 3, such as Figures 1 to 4As shown, one end of the male arc-shaped block 21 extends to the outside of the male head mating groove 18 and is provided with a male head wedge-shaped surface 23. The width of the male head wedge-shaped surface 23 gradually increases along the direction close to the male head claw 17. One end of the female arc-shaped block 22 extends to the outside of the female head mating groove 20 and is provided with a female head wedge-shaped surface 24. The width of the female head wedge-shaped surface 24 gradually increases along the direction close to the female head claw 19. The male head mating groove 18 and the female head mating groove 20 are staggered along the axial direction of the quick-connect male tube 15, so that the male head arc-shaped block 21 is press-fitted against the inner bottom wall of the female head mating groove 20, and the female head arc-shaped block 22 is press-fitted against the inner top wall of the male head mating groove 18, thereby preventing the quick-connect male tube 15 from colliding with the quick-connect female tube. To facilitate the interference fit between the male and female connectors, the male arc-shaped block 21 is screwed into the female connector groove 20. A male wedge-shaped surface 23 is provided on the male arc-shaped block 21. The male wedge-shaped surface 23 is screwed into the female connector groove 20 first. Guided by the male wedge-shaped surface 23, the male arc-shaped block 21 can deform smoothly to fit into the female connector groove 20. Similarly, the female wedge-shaped surface 24 is screwed into the male connector groove 18 first. Guided by the female wedge-shaped surface 24, the female arc-shaped block 22 can deform smoothly to fit into the male connector groove 18. Through the interference fit, the connection strength between the quick-connect male connector tube 15 and the quick-connect female connector tube 16 is higher, ensuring that there will be no problem of detachment during use. During disassembly, simply rotate the quick-connect female tube 16 in the opposite direction to disengage the male arc block 21 from the female mating groove 20 and the female arc block 22 from the male mating groove 18, making the installation and disassembly of the second hose 14 simple and quick.

[0040] Example 5

[0041] Traditional flange connections provide good sealing performance through the strong connection of two flanges with bolts. However, this invention uses a quick-connect structure, which has weaker connection strength than flange connections. Furthermore, foamed concrete, under the action of the foaming agent, produces air bubbles, which can easily overflow. Therefore, the quick-connect structure still requires strong sealing performance. To address this, based on Example 4, as... Figures 1 to 4As shown, the quick-connect female tube 16 has an annular sealing groove 25 at the end away from the second flexible tube 14, and an annular sealing gasket 26 is installed in the annular sealing groove 25. The quick-connect male tube 15 has an annular groove 27 at the end away from the second flexible tube 14. When the quick-connect male tube 15 is connected to the quick-connect female tube 16, the annular sealing gasket 26 is interference-fitted in the annular groove 27. The inner ring of the annular sealing groove 25 is threaded, and a threaded sealing ring 28 is installed in the threaded annular sealing groove 25. One end of the annular sealing gasket 26 is fixed to the threaded sealing ring 28. The side wall of the quick-connect female tube 16 has an arc-shaped groove 29 coaxially connected to the annular sealing groove 25. A lever 30 is fixed to the side wall of the threaded sealing ring 28, and the lever 30 passes through the arc-shaped groove 29. To improve the connection between the quick-connect female tube 16 and the quick-connect male tube 16, the lever 30 is designed to extend from the arc-shaped groove 29. To improve the sealing performance between the quick-connect male tube 15 and the quick-connect female tube 16, an adjustable annular sealing gasket 26 is installed. Before docking, the annular sealing gasket 26 is located in the annular sealing groove 25. After the quick-connect male tube 15 and the quick-connect female tube 16 are docked, the threaded sealing ring 28 is deflected by the lever 30, causing the threaded sealing ring 28 to push the annular sealing gasket 26 against the annular groove 27. This ensures that both ends of the annular sealing gasket 26 are interference-fitted into the annular sealing groove 25 and the annular groove 27, respectively. This greatly improves the sealing strength between the quick-connect female tube 16 and the quick-connect male tube 15, effectively preventing air bubbles from escaping. At the same time, the compression deformation of the annular sealing gasket 26 greatly increases the friction between the quick-connect female tube 16 and the quick-connect male tube 15, further strengthening the connection strength between the quick-connect male tube 15 and the quick-connect female tube 16 and preventing them from falling off.

[0042] Example 6

[0043] Based on Example 5, as shown in Figure 1 to 2010. Figure 9As shown, the end of the combined pipe away from the inclined pipe 4 is a quick-connect male pipe 15. A U-shaped handle 44 is connected to this quick-connect male pipe 15 by screws. The U-shaped handle 44 is installed at the end of the combined pipe, allowing construction workers to hold the end of the combined pipe for pouring operations. A U-shaped placement frame 45 is installed on the pipe placement frame 3. One open end of the U-shaped placement frame 45 is fixed to the pipe placement frame 3, and a sliding rod 46 slides through the other open end of the U-shaped placement frame 45. The sliding rod 46 forms a notch for the U-shaped handle 44 to pass through. A round hole 47 is opened at the end of the U-shaped placement frame 45 where the sliding rod 46 is installed. A spring 48 is installed inside the round hole 47, and one end of the sliding rod 46 fits into the round hole 47. A limiting groove 49 is provided on the placement frame 3. The other end of the sliding rod 46 is adapted to the limiting groove 49. A lifting rod is fixed to the outer wall of the sliding rod 46. Under normal conditions, the bottom of the sliding rod 46 is located in the limiting groove 49 under the action of the spring 48. After the pouring is completed, the lifting rod drives the sliding rod 46 to move upward, causing the sliding rod 46 to squeeze the spring 48 and move, so that the sliding rod 46 is separated from the limiting groove 49, thereby forming a gap between the sliding rod 46 and the pipe placement frame 3. The U-shaped handle 44 is inserted through the gap onto the U-shaped placement frame 45, and the U-shaped handle 44 is moved to the horizontal area of ​​the U-shaped placement frame 45. With the inclined pipe 4, the combined pipe is configured in a suspended inclined state, so that the concrete in the pipe can flow back under vibration. When pouring for the next floor, the pipe placement frame 3 is installed at the window of that floor, and one or more second hoses 14 are connected to make the length of the combined pipe adapt to the height of the floor. The concrete is poured for that floor in the same way. After the pouring is completed, vibration backflow is also performed. It is worth noting that the U-shaped support frame 45 can also support the combined pipe. A U-shaped handle 44 is installed on the quick-connect male pipe 15 that passes through the window. This U-shaped handle 44 is then threaded onto the U-shaped support frame 45, thereby supporting the combined pipe below. The part of the combined pipe that passes through the window is manually held so that the worker does not have to pull the entire combined pipe. Only the part that passes through the window needs to be operated.

[0044] Example 7

[0045] Based on Example 6, such as Figures 1 to 10As shown, an annular cavity is formed between the inner and outer walls of the quick-connect male pipe 15. Several gravity balls 50 are arranged in the annular cavity. When the inclined pipe 4 drives the combined pipe to vibrate, the gravity balls 50 will move irregularly in the annular cavity. The gravity balls 50 will frequently hit the quick-connect male pipe 15 to generate vibration, thereby strengthening the vibration intensity of the combined pipe. This allows the area of ​​the combined pipe away from the inclined pipe 4 to generate sufficient vibration for concrete backflow through the movement of the gravity balls 50. Moreover, the combined pipe will vibrate at intervals due to the movement of the gravity balls 50, so that the vibrations can influence each other to strengthen the vibration and ensure that the concrete in the combined pipe can be quickly and effectively backflowed. Then, it is transported back to the concrete mixer by the concrete delivery pump 1.

Claims

1. A pipeline conveying device for foamed concrete, comprising a concrete conveying pump, characterized in that, It also includes a vibrating frame, a combined pipe system, and a pipe placement rack. The pipe placement rack is fixed to the exterior wall. An inclined pipe is installed on the vibrating frame. The inclined pipe has a reciprocating linear degree of freedom. The bottom end of the inclined pipe is connected to a return pipe through a first flexible hose. The return pipe is connected to the discharge port of a concrete pump. The inlet of the concrete pump is connected to a flange pipe. The flange pipe is connected to the discharge port of a concrete mixer through a first valve. The return pipe includes a first pipe, a second pipe, a first return pipe, a second return pipe, and a valve. The two ends of the first pipe are respectively connected to the first port of the valve and the discharge port. The two ends of the second pipe are respectively connected to the second port of the valve and the first flexible hose. The two ends of the first return pipe are respectively connected to the second pipe and the flange pipe. The two ends of the second return pipe are respectively connected to the first pipe and the discharge pipe. The combined pipe includes several second flexible hoses connected in sequence. The two ends of the combined pipe are respectively connected to the high end of the inclined pipe and the pipe placement rack. The inclined pipe has multiple telescopic rods connected to its sidewalls. The end of each telescopic rod away from the inclined pipe is connected to a vibration frame. A vibration spring is fitted on each telescopic rod. Vibration rods are fixed on both sides of the inclined pipe. Each vibration rod has the freedom to reciprocate in the vertical direction. A vibration drive mechanism is provided below the inclined pipe. The vibration drive mechanism includes a motor and a rotary table. A drive spindle is coaxially fixed at the bottom of the rotary table. The drive spindle is rotatably mounted on the vibration frame. The motor is mounted on the vibration frame. The output shaft of the motor is connected to the drive spindle via a coupling. Multiple vibration drive blocks are fixed at the top of the rotary table along its circumference. One end of the top of each vibration drive block is provided with a drive inclined surface. A rolling ball is rotatably mounted at the bottom of the vibration rod. The rolling ball is located on the rotation path of the drive inclined surface.

2. The pipeline conveying device for foamed concrete according to claim 1, characterized in that, The two adjacent second hoses and the inclined pipe are connected by quick-connect structures. Each quick-connect structure includes a male quick-connect tube and a female quick-connect tube. The two ends of the second hose are respectively connected to the male and female quick-connect tubes. Multiple male claws are fixed to the side wall of the male quick-connect tube along its circumference. A male fitting groove is formed on the end face of each male claw near the end of the male quick-connect tube. A male arc-shaped block is provided in each male fitting groove, and the male arc-shaped block is fixedly connected... The quick-connect male connector has a female claw for each male claw. The female claw is fixed to the side wall of the quick-connect female connector. The female claw has a female mating groove on its end face near the quick-connect female connector. Each female mating groove has a female arc-shaped block. The female arc-shaped block is fixedly connected to the quick-connect female connector. The female arc-shaped block and the male arc-shaped block are staggered along the axial direction of the quick-connect male connector. The male arc-shaped block and the female arc-shaped block are simultaneously fitted into the corresponding male and female mating grooves.

3. A pipeline conveying device for foamed concrete according to claim 2, characterized in that, One end of the male arc-shaped block extends to the outside of the male head mating groove and is provided with a male head wedge-shaped surface. The width of the male head wedge-shaped surface gradually increases along the direction close to the male head claw. One end of the female arc-shaped block extends to the outside of the female head mating groove and is provided with a female head wedge-shaped surface. The width of the female head wedge-shaped surface gradually increases along the direction close to the female head claw.

4. A pipeline conveying device for foamed concrete according to claim 2, characterized in that, The quick-connect female tube has an annular sealing groove at the end away from the second flexible tube, and an annular sealing gasket is installed in the annular sealing groove. The quick-connect male tube has an annular groove at the end away from the second flexible tube. When the quick-connect male tube is connected to the quick-connect female tube, the annular sealing gasket is interference-fitted into the annular groove.

5. A pipeline conveying device for foamed concrete according to claim 4, characterized in that, The inner ring of the annular sealing groove is threaded, and a threaded sealing ring is fitted into the annular sealing groove. One end of the annular sealing gasket is fixed to the threaded sealing ring. An arc-shaped groove is coaxially formed on the side wall of the quick-connect female tube. The arc-shaped groove connects to the annular sealing groove. A lever is fixed to the side wall of the threaded sealing ring, and the lever passes through the arc-shaped groove.

6. A pipeline conveying device for foamed concrete according to claim 1, characterized in that, The telescopic rod includes a lower rod body and an upper rod body. One end of the lower rod body is fixedly connected to an inclined pipe, and the other end has a small-diameter hole and a large-diameter hole. A limiting block is slidably fitted inside the large-diameter hole. The diameter of the limiting block is larger than the diameter of the small-diameter hole. One end of the upper rod body is movably inserted into the large-diameter hole and connected to the limiting block, and the other end is fixedly connected to a vibration frame.

7. A pipeline conveying device for foamed concrete according to claim 2, characterized in that, The end of the combined pipe away from the inclined pipe is a quick-connect male pipe, and a U-shaped handle is connected to the quick-connect male pipe by screws. The pipe placement rack is equipped with a U-shaped placement rack, one end of the opening of the U-shaped placement rack is fixed to the pipe placement rack, and the other end of the opening of the U-shaped placement rack is slidably provided with a sliding rod. The sliding rod forms a notch for the U-shaped handle to pass through by sliding.

8. A pipeline conveying device for foamed concrete according to claim 7, characterized in that, The U-shaped placement rack has a circular hole at one end of the sliding rod, and a spring is installed in the circular hole. One end of the sliding rod is fitted into the circular hole. The pipe placement rack has a limiting groove, and the other end of the sliding rod is fitted into the limiting groove.

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