A pouring device for building houses

Abstract

The present invention relates to the technical field of construction engineering, and discloses a pouring device for building construction, which includes a concrete delivery pump, a support assembly for controlling the delivery length and position, a concrete delivery pipe for delivering concrete, a fixing frame for fixing the concrete delivery pipe on the support assembly, a connecting hose for connecting adjacent two concrete delivery pipes at the inflection point, and a clamp for connecting two adjacent concrete delivery pipes. When the concrete delivery pipe is blocked during the delivery of concrete, the concrete pressure at the blocked part will continuously increase, and the pressure of the high-pressure concrete on the wear-resistant rubber layer will continuously increase, causing the deformation amount of the part of the wear-resistant rubber layer not restricted by the extrusion ring plate to increase, resisting the elastic force of the resistance spring, pushing the extrusion ring plate to rotate, enabling a larger area of the wear-resistant rubber layer to lose the restriction of the extrusion ring plate, continuously increasing the internal space of the pipe at the blocked part, and automatically dredging the concrete at the blocked part under the condition of high pressure and increased space, thus avoiding the blockage during the concrete delivery process.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and particularly to a pouring device for building construction. Background Art

[0002] In the process of building a house, concrete is an essential material. Its main components are aggregates (large particles of sand, gravel, cobblestones, etc.), water, admixtures, gypsum, etc. After being stirred and mixed, it forms a concrete product, and then the concrete is transported to the position to be poured through a concrete pump.

[0003] During the transportation of concrete, the concrete pump acts as a power source to input the concrete into the concrete delivery pipe. The concrete delivery pipe is composed of a hollow metal round pipe. Since the transportation distance of concrete is long and the transportation position is variable, multiple concrete delivery pipes need to be fixed by brackets, and at the corner, two adjacent concrete delivery pipes are connected through a hose, so that the bracket can drive the concrete delivery pipe to change the angle without affecting the transportation of concrete. At a long distance, two adjacent concrete delivery pipes are fastened and connected through fastening devices such as clamps. According to the standard operation regulations, after the transportation of concrete is completed, the delivery pipe needs to be removed and subjected to high-pressure flushing to keep the inside of the pipe clean and avoid the problem of blockage caused by the drying of residual concrete in the pipe.

[0004] In this process, due to the large amount of aggregates in the concrete, a large number of aggregates are likely to pass through at the same cross-section at the same time, causing the aggregates to meet and jam at the same cross-section, resulting in blockage. At the same time, since the bracket drives the concrete delivery pipe to extend and turn, the pressure gradient of the concrete in the whole length is large, resulting in solid-liquid separation of the concrete in some areas and aggregate accumulation, which will also cause blockage problems. When blockage occurs, it is necessary to force the concrete in the pipe to flow in the positive direction by reversing the concrete pump to see if the blockage can be cleared. This way has a poor clearing effect, and the multiple positive and reverse rotations of the concrete pump in a short time are also likely to cause damage to the pump. When this clearing method fails, only by removing the delivery pipe for manual cleaning, which is time-consuming and laborious and also delays the construction period; at the same time, as the transportation distance of the concrete increases, the lower the concrete transportation pressure is at this time, the poorer the transportation effect and the lower the efficiency of the concrete transportation. Summary of the Invention

[0005] In view of the deficiencies of existing concrete conveying pipes in the prior art during use, the present invention provides a pouring device for building construction, which has the advantages of an extrusion ring plate restricting the deformation of the wear-resistant rubber layer, a high pressure during blockage causing an increased expansion amount of the wear-resistant rubber layer, the expanded wear-resistant rubber layer pushing the extrusion ring plate to displace and open a larger space, a small deformation amount of the wear-resistant rubber layer when the pressure is insufficient, a reduction in the space of the hydraulic oil and its flowing into the liquid passage cavity to cause the expansion rubber layer to expand and form a blockage and pressurization, the hydraulic oil flowing to the part of the wear-resistant rubber layer with a small pressure and expanding into the pipe, and the wear-resistant rubber layer expanding into the pipe applying a pressure compensation to the concrete at this place, solving the technical problems of difficult cleaning of pipe blockages and insufficient pressure over a long conveying distance proposed in the above-mentioned prior art.

[0006] The present invention provides the following technical solutions: A pouring device for building construction includes a concrete delivery pump, a bracket assembly for controlling the conveying length and position, a concrete conveying pipe for conveying concrete, a fixing frame for fixing the concrete conveying pipe on the bracket assembly, a connecting hose for connecting adjacent two concrete conveying pipes at the inflection point, and a clamp for connecting two adjacent concrete conveying pipes. The concrete conveying pipe includes a C-shaped metal pipe and a wear-resistant rubber layer fixedly connected to the C-shaped metal pipe. An activity groove is opened on the C-shaped metal pipe, and limit grooves are opened at the bottoms of both ends of the activity groove. An extrusion ring plate is movably connected in the activity groove. Positioning protrusions are provided at the bottoms of both ends of the extrusion ring plate, and the positioning protrusions are movably sleeved in the limit grooves. A uniformly distributed spring is fixedly connected to one end of the activity groove, and one end of the spring is fixedly connected to one end of the extrusion ring plate. A pressure compensation device is provided in the concrete conveying pipe.

[0007] Preferably, the cross-section of the C-shaped metal pipe is C-shaped, and the wear-resistant rubber layer is at the two ports of the C-shaped cross-section.

[0008] Preferably, the cross-sections of the activity groove and the limit groove are both arc-shaped. Both ends of the activity groove are respectively close to both ends of the C-shaped metal pipe. The cross-section of the extrusion ring plate is arc-shaped. The inner side surface of the extrusion ring plate fits on the outer side surface of the wear-resistant rubber layer, and the arc length of the extrusion ring plate is less than the arc length of the wear-resistant rubber layer.

[0009] Preferably, the pressure compensation device includes a liquid storage cavity opened in the wear-resistant rubber layer, a communication cavity opened in the C-shaped metal pipe and communicated with the liquid storage cavity, a blocking seat fixedly connected to the middle part of the inner cavity of the C-shaped metal pipe, a liquid passage cavity opened in the blocking seat, and symmetric expansion rubber layers fixedly sleeved at both ends of the blocking seat.

[0010] Preferably, both ends of the liquid storage cavity are respectively close to both ends of the wear-resistant rubber layer. The top opening of the liquid passage cavity is communicated with the communication cavity. One side surface of the expansion rubber layer is in the liquid passage cavity, and a bevel is formed at one end of the blocking seat facing the concrete flow direction.

[0011] Preferably, the communication cavity, the liquid storage cavity and the liquid passage cavity are all filled with hydraulic oil.

[0012] Preferably, the ability of the expansion glue layer to resist deformation is weaker than that of the wear-resistant glue layer, and the ability of the wear-resistant glue layer near the inner cavity of the C-shaped metal pipe to resist deformation is weaker than that of the wear-resistant glue layer far from the inner cavity of the C-shaped metal pipe.

[0013] The present invention has the following beneficial effects:

[0014] 1. The present invention forms a concrete conveying pipe through a C-shaped metal pipe and a wear-resistant glue layer, and applies pressure to the wear-resistant glue layer through an extrusion ring plate and a spring to limit the deformation amount of the wear-resistant glue layer after the concrete in the pipe applies pressure to the wear-resistant glue layer. When the concrete conveying pipe is blocked during concrete conveying, the concrete pressure at the blocked part will continuously increase. At this time, the pressure of the high-pressure concrete on the wear-resistant glue layer continuously increases, causing the deformation amount of the part of the wear-resistant glue layer not restricted by the extrusion ring plate to continuously increase, making the wear-resistant glue layer at this place continuously expand and resist the elastic force of the spring, thereby pushing the extrusion ring plate to rotate, so that a larger area of the wear-resistant glue layer loses the restriction of the extrusion ring plate, and the internal space of the pipe at the blocked place continuously increases, so that the concrete at the blocked place is automatically dredged under the conditions of high pressure and increased space, avoiding blockage during the concrete conveying process.

[0015] 2. When the concrete conveying pressure in the long-distance concrete conveying pipe continuously decreases, the pressure of the concrete in the pipe on the wear-resistant glue layer at this place will also continuously decrease, causing the deformation amount of the wear-resistant glue layer to continuously decrease, making the force of the wear-resistant glue layer resisting the spring continuously decrease, and the spring pushing the extrusion ring plate to continuously rotate to cover a larger surface area of the wear-resistant glue layer. At this time, the decrease in the deformation amount of the wear-resistant glue layer causes the liquid in the liquid storage cavity to lose enough space, forcing the liquid in the liquid storage cavity to be input into the liquid passage cavity through the communication cavity, causing the expansion glue layer to expand (the ability of the expansion glue layer to resist deformation is weaker than that of the wear-resistant glue layer), and the internal space of the concrete conveying pipe at this place continuously shrinks to form a blocked environment, so that the concrete at this place is blocked and pressurized. When the pressure continuously increases, it will again increase the deformation amount of the part of the wear-resistant glue layer not restricted by the extrusion ring plate, pushing the extrusion ring plate to rotate, so that a larger area of the wear-resistant glue layer loses the restriction of the extrusion ring plate, and the internal space of the pipe at the blocked place continuously increases. At this time, the expanded wear-resistant glue layer provides more space for the liquid, forcing the high-pressure concrete to squeeze the expansion glue layer, causing the liquid here to flow back, shrinking the expansion glue layer, increasing the internal space of the pipe, and enabling the high-pressure concrete to flow in the pipe, achieving the purpose of intermittent automatic continuous pressure increase.

[0016] 3. In the present invention, the concrete is pressurized by the expansion of the expansion glue layer to form a blockage. While part of the liquid flowing into the liquid passage chamber supports the expansion of the expansion glue layer, more liquid will flow in the direction of the concrete flow, and the liquid storage chamber is formed at the unblocked part. Under the input of more liquid, the wear-resistant glue layer here expands towards the inner cavity direction of the concrete delivery pipe, continuously reducing the space inside the concrete delivery pipe here. When the concrete filling the pipe here is affected by the subsequent blocked concrete and the conveying pressure decreases, the expanded wear-resistant glue layer will provide pressure compensation to keep the concrete here flowing slowly, avoiding the problem that the concrete completely stops flowing during the process of blockage pressurization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a schematic structural diagram of the concrete delivery pipe of the present invention;

[0019] Figure 3 is a schematic diagram of the structural position of the extrusion ring plate of the present invention;

[0020] Figure 4 is a schematic structural diagram of the pressure compensation device according to Embodiment 2 of the present invention;

[0021] Figure 5 is a schematic structural diagram when the wear-resistant glue layer of Embodiment 1 of the present invention expands;

[0022] Figure 6 is a schematic structural diagram when the expansion glue layer of Embodiment 2 of the present invention expands.

[0023] In the figure: 1, concrete delivery pump; 2, bracket assembly; 3, fixing frame; 4, C-shaped metal pipe; 401, communication chamber; 5, connecting hose; 6, clamp; 7, movable groove; 8, limiting groove; 9, wear-resistant glue layer; 901, liquid storage chamber; 10, extrusion ring plate; 101, positioning protrusion; 11, spring; 12, blocking seat; 13, liquid passage chamber; 14, expansion glue layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1

[0026] Please refer to Figure 1, a pouring device for building construction, including a concrete delivery pump 1, a bracket assembly 2 for controlling the delivery length and position, a concrete delivery pipe for delivering concrete, a fixing frame 3 for fixing the concrete delivery pipe on the bracket assembly 2, a connecting hose 5 for connecting adjacent two concrete delivery pipes at the inflection point, and a clamp 6 for connecting two adjacent concrete delivery pipes, so that multiple concrete delivery pipes can be connected through the connecting hose 5 and the clamp 6 to form a long-distance delivery pipeline, and are fixed on the bracket assembly 2 through the fixing frame 3. When the bracket assembly 2 adjusts its position (the adjustment is an existing device, such as the robotic arm on a concrete delivery pump truck), it can drive the delivery pipeline to move freely.

[0027] See Figures 2 to 3 , Figure 5 , the concrete delivery pipe includes a C-shaped metal pipe 4 and a wear-resistant rubber layer 9 fixedly connected to the C-shaped metal pipe 4. The cross-section of the C-shaped metal pipe 4 is C-shaped, and the wear-resistant rubber layer 9 is located at the two ports of the C-shaped cross-section, so that the wear-resistant rubber layer 9 can expand under the pressure of the concrete and form a larger delivery space under necessary conditions. The wear-resistant rubber layer 9 can be connected to the connecting hose 5 and the clamp 6 through existing fixing devices, and the connecting hose 5 can also be connected to the concrete delivery pipe through existing fixing devices, such as common hose joints.

[0028] See Figures 2 to 3 , Figure 5 , an activity groove 7 is opened on the C-shaped metal pipe 4, and limit grooves 8 are opened at the bottoms of both ends of the activity groove 7. The cross-sections of the activity groove 7 and the limit grooves 8 are both arc-shaped. The two ends of the activity groove 7 are respectively close to the two ends of the C-shaped metal pipe 4. An extrusion ring plate 10 is movably connected in the activity groove 7. Positioning protrusions 101 are provided at the bottoms of both ends of the extrusion ring plate 10, and the positioning protrusions 101 are movably sleeved in the limit grooves 8. The cross-section of the extrusion ring plate 10 is arc-shaped, so that the limit grooves 8 limit the positioning protrusions. With the restriction of the activity groove 7, the extrusion ring plate 10 can only rotate around the center of the C-shaped metal pipe 4. The inner side surface of the extrusion ring plate 10 is attached to the outer side surface of the wear-resistant rubber layer 9. The arc length of the extrusion ring plate 10 is smaller than the arc length of the wear-resistant rubber layer 9. One end of the activity groove 7 is fixedly connected with evenly distributed springs 11, and one end of the springs 11 is fixedly connected with one end of the extrusion ring plate 10, so that the springs 11 provide a thrust force to the extrusion ring plate 10, so that the extrusion ring plate 10 can always press on the wear-resistant rubber layer 9, hinder the deformation of the wear-resistant rubber layer 9, and at the same time enable the wear-resistant rubber layer 9 to always have a part that can be affected by the pressure of the concrete and expand and deform. When the expansion force of the wear-resistant rubber layer 9 is greater than the force provided by the springs 11, it can push the extrusion ring plate 10 to rotate in the direction of the springs 11, reducing the area covered by the extrusion ring plate 10 on the wear-resistant rubber layer 9 and completing the expansion of the space inside the pipe.

[0029] Embodiment 2

[0030] On the basis of Embodiment 1

[0031] Refer to Figure 4 , Figure 6 , a liquid storage cavity 901 is formed in the wear-resistant rubber layer 9. The two ends of the liquid storage cavity 901 are respectively close to the two ends of the wear-resistant rubber layer 9, so that the liquid storage cavity 901 covers most of the area of the concrete metal pipe, so that in the subsequent plugging and pressurizing process, the expansion of the wear-resistant rubber layer 9 into the pipe can cover a large area of the concrete in the pipe, completing the flow retention. A communication cavity 401 communicating with the liquid storage cavity 901 is formed in the C-shaped metal pipe 4.

[0032] Refer to Figure 4 , Figure 6 , a blocking seat 12 is fixedly connected to the middle part of the inner cavity of the C-shaped metal pipe 4. A liquid passing cavity 13 is formed in the blocking seat 12. The top opening of the liquid passing cavity 13 is communicated with the communication cavity 401. Symmetric expansion rubber layers 14 are fixedly sleeved at both ends of the blocking seat 12. One side surface of the expansion rubber layer 14 is located in the liquid passing cavity 13, so that when the deformation amount of the wear-resistant rubber layer 9 decreases and the space that can be provided for the hydraulic oil decreases, the hydraulic oil can enter the liquid passing cavity 13 through the communication cavity 401, causing the expansion rubber layer 14 to expand and reducing the inner space of the pipe here, completing the plugging and pressurizing.

[0033] Refer to Figure 4 , Figure 6 , a bevel is formed at one end of the blocking seat 12 facing the concrete flow direction, reducing the resistance of the blocking seat 12 to the flowing concrete. The communication cavity 401, the liquid storage cavity 901 and the liquid passing cavity 13 are all filled with hydraulic oil.

[0034] The ability of the expansion rubber layer 14 to resist deformation is weaker than that of the wear-resistant rubber layer 9 to resist deformation. When the hydraulic oil flows, it will first move to the part of the expansion rubber layer 14 with weaker resistance to deformation, completing the expansion of the expansion rubber layer 14. The ability of the part of the wear-resistant rubber layer 9 close to the inner cavity of the C-shaped metal pipe 4 to resist deformation is weaker than that of the part of the wear-resistant rubber layer 9 far from the inner cavity of the C-shaped metal pipe 4. After the expansion of the expansion rubber layer 14, the hydraulic oil will flow to the position of the wear-resistant rubber layer 9 of the concrete that has lost the subsequent pressure or the subsequent pressure has weakened, making the inward deformation and expansion degree of the wear-resistant rubber layer 9 here larger, completing the pressure compensation.

[0035] Only the concrete conveying pipe close to the pouring part is provided with a pressure compensation device.

[0036] The usage method (working principle) of the first embodiment of the present invention is as follows:

[0037] First, the support assembly 2 drives the concrete delivery pipe to move, so that the output end of the concrete delivery pipe moves to the position to be poured. Then, the concrete delivery pump 1 is started, so that the concrete delivery pump 1 continuously inputs high-pressure concrete into the concrete delivery pipe. When the concrete enters the concrete delivery pipe, the concrete will exert pressure on the C-shaped metal pipe 4 and the wear-resistant rubber layer 9, causing the concrete to squeeze the wear-resistant rubber layer 9, so that the part of the wear-resistant rubber layer 9 not covered by the extrusion ring plate 10 continuously expands and deforms outward, causing the expanded wear-resistant rubber layer 9 to push the extrusion ring plate 10 to rotate in the direction of the spring 11, causing the spring 11 to compress and store energy until the elastic force provided by the spring 11 is equal to the expansion pressure provided by the wear-resistant rubber layer 9. During this process, the area of the wear-resistant rubber layer 9 not covered by the extrusion ring plate 10 gradually increases. Then, the concrete is transported to the position to be poured through a plurality of concrete delivery pipes and connecting hoses 5;

[0038] Then, when the concrete delivery pipe is blocked, taking the cross-section of the blockage as the dividing line, the concrete in the direction of the concrete delivery pump 1 at the blockage continuously accumulates and the pressure continuously increases. The pressure on the concrete on the other side of the blockage gradually decreases, causing the concrete accumulated at the pressure increase area to exert a greater pressure on the wear-resistant rubber layer 9 here, causing the expansion deformation amount of the wear-resistant rubber layer 9 here to increase, causing the wear-resistant rubber layer 9 to further push the extrusion ring plate 10 to rotate in the direction of the spring 11, causing the spring 11 to further compress and store energy until the elastic force provided by the spring 11 is equal to the expansion pressure provided by the wear-resistant rubber layer 9 again. At this time, the space around the blockage of the concrete transport pipe gradually becomes larger. During the continuous increase of the concrete pressure at the blockage, the concrete at the blockage is pushed to loosen, causing the blockage to fail and continuing to push the concrete in the concrete transport pipe to flow;

[0039] Finally, as the concrete at the blockage flows, the concrete pressure here gradually decreases, the pressure on the wear-resistant rubber layer 9 decreases, causing the compressed spring 11 to push the extrusion ring plate 10 to rotate back to its original position, causing a larger area of the wear-resistant rubber layer 9 to be covered by the extrusion ring plate 10 until the force provided by the spring 11 is equal to the force of the concrete expanding the wear-resistant rubber layer 9 and pushing the extrusion ring plate 10 again.

[0040] The usage method (working principle) of the second embodiment of the present invention is as follows:

[0041] First, the support assembly 2 drives the concrete delivery pipe to move, so that the output end of the concrete delivery pipe moves to the position to be poured. Then, the concrete delivery pump 1 is started, so that the concrete delivery pump 1 continuously inputs high-pressure concrete into the concrete delivery pipe. When the concrete enters the concrete delivery pipe, the concrete will exert pressure on the C-shaped metal pipe 4 and the wear-resistant rubber layer 9, causing the concrete to squeeze the wear-resistant rubber layer 9, so that the part of the wear-resistant rubber layer 9 not covered by the extrusion ring plate 10 continuously expands and deforms outward, causing the expanded wear-resistant rubber layer 9 to push the extrusion ring plate 10 to rotate in the direction of the spring 11, causing the spring 11 to compress and store energy until the elastic force provided by the spring 11 is equal to the expansion pressure provided by the wear-resistant rubber layer 9. During this process, the area of the wear-resistant rubber layer 9 not covered by the extrusion ring plate 10 gradually increases. Then, the concrete is transported to the position to be poured through multiple concrete delivery pipes and connecting hoses 5;

[0042] Then, when a blockage occurs in the concrete delivery pipe, taking the cross-section of the blockage as the dividing line, the concrete in the direction of the concrete delivery pump 1 at the blockage continuously accumulates and the pressure continuously increases. The pressure on the concrete on the other side of the blockage gradually decreases, causing the concrete accumulated at the pressure-increasing part to exert a greater pressure on the wear-resistant rubber layer 9 here, causing the expansion deformation of the wear-resistant rubber layer 9 here to increase, causing the wear-resistant rubber layer 9 to further push the extrusion ring plate 10 to rotate in the direction of the spring 11, causing the spring 11 to further compress and store energy until the elastic force provided by the spring 11 is equal to the expansion pressure provided by the wear-resistant rubber layer 9 again. At this time, the space around the blockage of the concrete transport pipe gradually becomes larger. During the continuous increase of the concrete pressure at the blockage, the concrete at the blockage is pushed to loosen, causing the blockage to fail and continuing to push the concrete in the concrete transport pipe to flow;

[0043] Finally, as the concrete flows at the blockage, the concrete pressure here gradually decreases, the pressure on the wear-resistant rubber layer 9 decreases, and the compressed spring 11 pushes the extrusion ring plate 10 to rotate and reset, so that a larger area of the wear-resistant rubber layer 9 is covered by the extrusion ring plate 10 until the force provided by the spring 11 is equal to the force that expands the wear-resistant rubber layer 9 by the concrete again. When the concrete conveying pressure in the long concrete conveying pipe continues to decrease, the pressure of the concrete in the pipe on the wear-resistant rubber layer 9 here will also continue to decrease, causing the deformation of the wear-resistant rubber layer 9 to continuously decrease, the force of the wear-resistant rubber layer 9 against the spring 11 to continuously decrease, and the spring 11 to continuously push the extrusion ring plate 10 to rotate, covering a larger surface area of the wear-resistant rubber layer 9. At this time, the decrease in the deformation of the wear-resistant rubber layer 9 causes the liquid in the liquid storage cavity 901 to lose enough space, forcing the liquid in the liquid storage cavity 901 to be input into the liquid passage cavity 13 through the communication cavity 401, expanding the expansion rubber layer 14, and continuously reducing the internal space of the concrete conveying pipe here, forming a blockage environment, so that the concrete here is blocked and pressurized. When the pressure continuously increases, the deformation of the part of the wear-resistant rubber layer 9 not restricted by the extrusion ring plate 10 will increase again, pushing the extrusion ring plate 10 to rotate, so that a larger area of the wear-resistant rubber layer 9 is not restricted by the extrusion ring plate 10, and the internal space of the pipe at the blockage continues to increase. At this time, the expanded wear-resistant rubber layer 9 provides more space for the liquid, forcing the high-pressure concrete to squeeze the wear-resistant rubber layer 9, causing the liquid here to flow back, shrinking the expansion rubber layer 14, increasing the internal space of the pipe, and enabling the high-pressure concrete to flow in the pipe, forming an intermittent automatic continuous pressurization action. During this process, while part of the liquid flowing into the liquid passage cavity 13 supports the expansion of the expansion rubber layer 14, more liquid will flow to the part of the liquid storage cavity 901 that is not blocked in the concrete flow direction. Under the input of more liquid, the wear-resistant rubber layer 9 here expands towards the inner cavity direction of the concrete conveying pipe, continuously reducing the internal space of the concrete conveying pipe here, so that the concrete filling the pipe here, under the influence of the subsequent blocked concrete and with a reduced conveying pressure, the expanded wear-resistant rubber layer 9 will provide pressure compensation for it, enabling the concrete here to continue to flow slowly until the subsequent blockage pressurization is successful. The pressurized concrete pushes the slowly flowing concrete here to accelerate the flow, and the part of the wear-resistant rubber layer 9 that expands towards the pipe will recover under the influence of the pressurized concrete. At this time, the concrete pressure in the concrete conveying pipe will continue to decrease again, and the above actions can be repeated.

[0044] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0045] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pouring device for building construction, comprising a concrete delivery pump (1), a support assembly (2) for controlling the delivery length and position, a concrete delivery pipe for delivering concrete, a fixing bracket (3) for fixing the concrete delivery pipe on the support assembly (2), a connecting hose (5) for connecting adjacent two concrete delivery pipes at an inflection point, and a clamp (6) for connecting two adjacent concrete delivery pipes. It is characterized in that: The concrete delivery pipe comprises a C-shaped metal pipe (4) and a wear-resistant rubber layer (9) fixedly connected to the C-shaped metal pipe (4). An activity groove (7) is formed in the C-shaped metal pipe (4). Limiting grooves (8) are formed at the bottoms of both ends of the activity groove (7). An extrusion ring plate (10) is movably connected in the activity groove (7). Positioning protrusions (101) are arranged at the bottoms of both ends of the extrusion ring plate (10). The positioning protrusions (101) are movably sleeved in the limiting grooves (8). A uniformly distributed spring (11) is fixedly connected to one end of the activity groove (7). One end of the spring (11) is fixedly connected to one end of the extrusion ring plate (10). A pressure compensation device is arranged in the concrete delivery pipe. The cross sections of the activity groove (7) and the limiting groove (8) are both arc-shaped. Both ends of the activity groove (7) are respectively close to both ends of the C-shaped metal pipe (4). The cross section of the extrusion ring plate (10) is arc-shaped. The inner side surface of the extrusion ring plate (10) is attached to the outer side surface of the wear-resistant rubber layer (9). The arc length of the extrusion ring plate (10) is smaller than the arc length of the wear-resistant rubber layer (9). The pressure compensation device comprises a liquid storage cavity (901) formed in the wear-resistant rubber layer (9). A communication cavity (401) communicated with the liquid storage cavity (901) is formed in the C-shaped metal pipe (4). A blocking seat (12) is fixedly connected to the middle part of the inner cavity of the C-shaped metal pipe (4). A liquid passage cavity (13) is formed in the blocking seat (12). Symmetric expansion rubber layers (14) are fixedly sleeved at both ends of the blocking seat (12). Both ends of the liquid storage cavity (901) are respectively close to both ends of the wear-resistant rubber layer (9). The top opening of the liquid passage cavity (13) is communicated with the communication cavity (401). One side surface of the expansion rubber layer (14) is located in the liquid passage cavity (13). A bevel edge is formed at one end of the blocking seat (12) facing the concrete flow direction. The ability of the expansion rubber layer (14) to resist deformation is weaker than that of the wear-resistant rubber layer (9) to resist deformation. The ability of the part of the wear-resistant rubber layer (9) close to the inner cavity of the C-shaped metal pipe (4) to resist deformation is weaker than that of the part of the wear-resistant rubber layer (9) far from the inner cavity of the C-shaped metal pipe (4).

2. The pouring device for building construction according to claim 1, It is characterized in that: The cross section of the C-shaped metal pipe (4) is C-shaped. The wear-resistant rubber layer (9) is located at the two ports of the C-shaped cross section.

3. The pouring device for building construction according to claim 1, It is characterized in that: Hydraulic oil is filled in the communication cavity (401), the liquid storage cavity (901) and the liquid passage cavity (13).

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