Vacuum exhaust device for immersed tube rock-socketed pile grouting

Abstract

The utility model provides a vacuum exhaust device for pipe-sinking rock-socketed pile grouting, which belongs to the technical field of pipe-sinking pile grouting machines and comprises a construction steel pipe, a connecting pipe, a ball valve body, a rolling ball, a grouting channel and a rotating handle. The connecting pipe is connected above the construction steel pipe through a flange, and the ball valve body is fixedly arranged at the top of the connecting pipe. A rolling ball is arranged on the inner side of the ball valve body in a rolling mode, an irrigation channel penetrates through the center of the rolling ball, and a rotating handle is fixedly arranged at the right end of the rolling ball and penetrates through the right end of the ball valve body. By arranging the gas pressure pump, the vacuum chamber and the exhaust device, when the pipe-sinking cast-in-place pile is constructed, the gas pressure pump can be used for pressurizing the interior of the construction steel pipe, so that materials such as reinforcement cages, concrete and the like in the construction steel pipe can be pushed downwards more sufficiently by gas pressure, and the tamping density of the concrete is ensured; and gas in the construction steel pipe can be exhausted through the exhaust device and the vacuum chamber, bubbles are prevented from existing in compacted concrete, and the quality of the pipe sinking cast-in-place pile is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of radiation detection, in particular to a vacuum exhaust device for sunken tube rock-embedded piles. Background Art

[0002] Pipe sinking pile is one of the many types of pile foundations in civil engineering. It is mainly suitable for construction in environments with complex geological conditions such as groundwater, quicksand, and silt. Its construction process includes using a steel pipe (i.e., casing) that is compatible with the design size of the pile, putting the pile tip on the end and sinking it into the soil, then hanging a steel skeleton in the casing, and then vibrating or hammering the pipe while pouring concrete, and using the vibration when pulling the pipe to compact the concrete, so as to form the required cast-in-place pile;

[0003] For example, in the prior art, a Chinese patent with a patent publication number of CN202202323 discloses a tamping and expanding bottom pile back pressure device for a pipe-sinking bored pile machine. The utility model can improve the vertical bearing capacity of a single pile, prevent the pile body from shrinking in diameter, the steel cage from being brought out by the construction steel pipe and concrete, and the concrete from blocking the construction steel pipe, compact the concrete, and improve the construction efficiency and pile quality;

[0004] The device pressurizes the gas in the construction steel pipe through the gas booster device, and the air pressure compacts the concrete in the construction steel pipe to ensure the quality of the pipe-sinking cast-in-place pile. However, pressurizing the gas in the construction pipeline can easily make it difficult to discharge the gas dissolved in the concrete. In particular, when the concrete is in an overhead state, the gas can easily fill the overhead parts of the concrete, causing bubbles to form after the pipe-sinking cast-in-place pile solidifies, affecting the quality of the pipe-sinking cast-in-place pile. Therefore, a vacuum exhaust device for pipe-sinking rock-embedded cast-in-place piles is designed to solve the above problem. Utility Model Content

[0005] The utility model aims to solve the problems existing in the above-mentioned background technology and proposes a vacuum exhaust device for sunken tube rock-embedded piles.

[0006] The technical problem to be solved by the utility model is to provide a vacuum exhaust device for pipe-sinking rock-embedded cast-in-place piles. The gas in the construction steel pipe can be discharged through the exhaust device and the vacuum chamber, so as to prevent bubbles from existing in the compacted concrete, ensure the quality of the pipe-sinking cast-in-place piles, and have high practicality.

[0007] The technical problem to be solved by the utility model is to provide a vacuum exhaust device for pipe-sunk rock-embedded piles, comprising a construction steel pipe, a connecting pipe, a ball valve body, a rolling ball, a pouring channel and a turning handle, wherein the top of the construction steel pipe is connected to a connecting pipe through a flange, a ball valve body is fixedly arranged on the top of the connecting pipe, a rolling ball is rollingly arranged on the inner side of the ball valve body, a pouring channel is penetrated through the center of the rolling ball, a turning handle is fixedly arranged on the right end of the rolling ball, and the turning handle penetrates the right end of the ball valve body, a gas pressure pump is penetrated through the right side of the connecting pipe, a vacuum chamber is penetrated through the left end of the connecting pipe, and an exhaust device is penetrated through the left end of the vacuum chamber.

[0008] Preferably, the exhaust device includes an exhaust pipe, an exhaust hole, an oil cylinder, a piston, a vertical rod, a fixing ring, a guide rod, a blocking disk and a sleeve spring. The exhaust hole is penetrated through the right sides of the upper and lower surfaces of the exhaust pipe, the oil cylinder is fixedly provided at the right end of the exhaust pipe, the piston is fixedly provided at the output end of the oil cylinder, the vertical rod is fixedly provided on the left side of the exhaust pipe, the fixing ring is fixedly provided on the left side of the vertical rod, the guide rod is penetrated through the center of the vertical rod, the blocking disk is fixedly provided on the left end of the guide rod, and a sleeve spring is fixedly provided between the blocking disk and the vertical rod.

[0009] Preferably, when the oil cylinder is extended to a minimum length, the exhaust hole is located on the left side of the piston, and when the oil cylinder is extended to a maximum length, the exhaust hole is located on the right side of the piston.

[0010] Preferably, the diameter of the blocking disk is larger than the diameter of the central through hole of the fixing ring.

[0011] Preferably, the sleeve spring is in a stretched state, and the right side surface of the blocking disk is tightly attached to the left side surface of the fixing ring, and the blocking disk and the fixing ring are airtightly connected.

[0012] Preferably, the diameter of the blocking disk is smaller than the inner diameter of the exhaust pipe.

[0013] Compared with the prior art, the utility model has at least the following beneficial effects:

[0014] 1. The utility model is provided with a gas pressure pump, a vacuum chamber and an exhaust device. When constructing the immersed tube cast-in-place pile, the gas pressure pump can be used to pressurize the inside of the construction steel pipe. The air pressure can more fully push down the steel cage, concrete and other materials in the steel construction pipe to ensure the compaction density of the concrete. The gas in the construction steel pipe can be discharged through the exhaust device and the vacuum chamber to prevent the presence of bubbles in the compacted concrete and ensure the quality of the immersed tube cast-in-place pile.

[0015] 2. The utility model is provided with an exhaust assembly. When the vacuum chamber is evacuated, the oil cylinder is extended and the piston squeezes the gas on the left side of the exhaust pipe, so that the air pressure on the left side of the exhaust pipe increases. The air pressure pushes the blocking plate to separate the blocking plate from the fixing ring. The blocking plate does not block the central through hole of the fixing ring. After the gas on the left side of the exhaust pipe is discharged, the blocking plate is attached to the fixing ring under the action of the elastic force of the sleeve spring to prevent external gas from entering the left side of the exhaust pipe. When the oil cylinder contracts, the piston moves to the right, and the air pressure on the left side of the exhaust pipe decreases until the piston is on the right side of the exhaust hole. The gas in the vacuum chamber enters the exhaust pipe through the exhaust hole. The piston repeatedly moves left and right to achieve the effect of discharging the gas in the vacuum chamber. After the gas in the vacuum chamber is discharged, the oil cylinder is in an extended state. The piston prevents external gas from entering the vacuum chamber, and cooperates with the blocking plate to seal the central through hole of the fixing ring, and double sealing is achieved to prevent air leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 It is a schematic cross-sectional view of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the exhaust device of the utility model.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the exhaust device of the utility model.

[0020] Figure 4 The vertical section structure diagram of the exhaust device of the utility model Figure 1 .

[0021] Figure 5 The vertical section structure diagram of the exhaust device of the utility model Figure 2 .

[0022] [reference numerals]

[0023] 1. Construction steel pipe; 2. Connecting pipe; 3. Ball valve body; 4. Rolling ball; 401. Watering channel; 5. Turning handle; 6. Gas pressure pump; 7. Vacuum chamber; 8. Exhaust pipe; 801. Exhaust hole; 802. Oil cylinder; 803. Piston; 804. Vertical rod; 805. Fixed ring; 806. Guide rod; 807. Blocking disk; 808. Socket spring. DETAILED DESCRIPTION

[0024] Example:

[0025] like Figure 1-Figure 5 As shown, an embodiment of the utility model provides a vacuum exhaust device for pipe-sunken rock-embedded pile grouting, comprising a construction steel pipe 1, a connecting pipe 2, a ball valve body 3, a rolling ball 4, a pouring channel 401 and a turning handle 5, wherein the top of the construction steel pipe 1 is connected to the connecting pipe 2 through a flange, the top of the connecting pipe 2 is fixedly provided with a ball valve body 3, the inner side of the ball valve body 3 is rollingly provided with a rolling ball 4, the center of the rolling ball 4 is penetrated by a pouring channel 401, the right end of the rolling ball 4 is fixedly provided with a turning handle 5, and the turning handle 5 penetrates the right end of the ball valve body 3, the right side of the connecting pipe 2 is penetrated by a gas pressure pump 6, the left end of the connecting pipe 2 is penetrated by a vacuum chamber 7, and the left end of the vacuum chamber 7 is penetrated by an exhaust device.

[0026] During actual use, when constructing the pipe-sinking cast-in-place pile, the construction steel pipe 1 is inserted into the ground, and then the steel cage is placed in the construction pipe. Then, the connecting pipe 2 is connected to the construction steel pipe 1 through the flange, and the turning handle 5 is turned to drive the rolling ball 4 to rotate, so that the pouring channel 401 on the rolling ball 4 faces upward, and then the concrete is poured. After pouring a certain distance, the turning handle 5 is turned to drive the rolling ball 4 to rotate, so that the pouring channel 401 is attached to the side of the ball valve body 3, so that the ball valve body 3 is closed. The connecting pipe 2 is closed to achieve the effect of sealing the top of the connecting pipe 2, and then the connecting pipe 2 and the construction steel pipe 1 are inflated through the gas pressure pump 6 to achieve the effect of pressurizing the construction steel pipe 1. The air pressure can more fully push down the steel cage, concrete and other materials in the steel construction steel pipe 1 to ensure the compaction density of the concrete. After the pressurization is completed, the vacuum chamber 7 is evacuated through the exhaust device to discharge the gas in the construction steel pipe 1 and the connecting pipe 2 to prevent the presence of gas in the concrete and ensure the quality of the immersed pipe cast-in-place pile.

[0027] In this embodiment, the exhaust device includes an exhaust pipe 8, an exhaust hole 801, an oil cylinder 802, a piston 803, a vertical rod 804, a fixing ring 805, a guide rod 806, a blocking disk 807 and a sleeve spring 808. The exhaust hole 801 is penetrated on the right side of the upper and lower surfaces of the exhaust pipe 8, the oil cylinder 802 is fixedly arranged on the right end of the exhaust pipe 8, the piston 803 is fixedly arranged on the output end of the oil cylinder 802, the vertical rod 804 is fixedly arranged on the left side of the exhaust pipe 8, the fixing ring 805 is fixedly arranged on the left side of the vertical rod 804, the guide rod 806 is penetrated in the center of the vertical rod 804, the blocking disk 807 is fixedly arranged on the left end of the guide rod 806, and the sleeve spring 808 is fixedly arranged between the blocking disk 807 and the vertical rod 804.

[0028] In this embodiment, when the oil cylinder 802 is extended to the minimum length, the exhaust hole 801 is located on the left side of the piston 803 , and when the oil cylinder 802 is extended to the maximum length, the exhaust hole 801 is located on the right side of the piston 803 .

[0029] In this embodiment, the diameter of the blocking disk 807 is larger than the diameter of the central through hole of the fixing ring 805 , so that the blocking disk 807 can block the central through hole of the fixing ring 805 .

[0030] In this embodiment, the sleeve spring 808 is in a stretched state, and the right side surface of the blocking plate 807 is tightly attached to the left side surface of the fixing ring 805. The blocking plate 807 and the fixing ring 805 are airtightly connected to prevent external gas from entering the right side of the exhaust pipe through the gap between the blocking plate 807 and the fixing ring 805.

[0031] In this embodiment, the diameter of the blocking disk 807 is smaller than the inner diameter of the exhaust pipe 8 , and the blocking disk 807 will not affect the normal exhaust of the exhaust pipe 8 .

[0032] By providing an exhaust assembly, when the vacuum chamber is evacuated, the oil cylinder 802 extends, and the piston 803 squeezes the gas on the left side of the exhaust pipe 8, so that the air pressure on the left side of the exhaust pipe 8 increases, and the air pressure pushes the blocking plate 807, so that the blocking plate 807 is separated from the fixing ring 805, and the blocking plate 807 does not block the central through hole of the fixing ring 805. After the gas on the left side of the exhaust pipe 8 is discharged, under the action of the elastic force of the sleeve spring 808, the blocking plate 807 is attached to the fixing ring 805 to prevent external gas from entering the left side of the exhaust pipe 8. When 802 contracts, piston 803 moves to the right, and the air pressure on the left side of the exhaust pipe 8 decreases until piston 803 is on the right side of exhaust hole 801. The gas in vacuum chamber 7 enters exhaust pipe 8 through exhaust hole 801. Piston 803 repeatedly moves left and right to discharge the gas in vacuum chamber 7. After the gas in vacuum chamber 7 is discharged, cylinder 802 is in an extended state, and piston 803 prevents external gas from entering vacuum chamber 7. It cooperates with blocking disk 807 to seal the central through hole of fixing ring 805, and double seals are formed to prevent air leakage.

[0033] The above are only preferred implementations of the utility model. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model. These should also be regarded as the protection scope of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A vacuum exhaust device for immersed tube rock-embedded piles, characterized in that: The invention comprises a construction steel pipe (1), a connecting pipe (2), a ball valve body (3), a rolling ball (4), a pouring channel (401) and a turning handle (5), wherein the top of the construction steel pipe (1) is connected to the connecting pipe (2) via a flange, the top of the connecting pipe (2) is fixedly provided with a ball valve body (3), the inner side of the ball valve body (3) is rollingly provided with a rolling ball (4), the center of the rolling ball (4) is penetrated with a pouring channel (401), the right end of the rolling ball (4) is fixedly provided with a turning handle (5), and the turning handle (5) penetrates the right end of the ball valve body (3), the right side of the connecting pipe (2) is penetrated with a gas pressure pump (6), the left end of the connecting pipe (2) is penetrated with a vacuum chamber (7), and the left end of the vacuum chamber (7) is penetrated with an exhaust device.

2. The vacuum exhaust device for immersed tube rock-embedded pile according to claim 1, characterized in that: The exhaust device comprises an exhaust pipe (8), an exhaust hole (801), an oil cylinder (802), a piston (803), a vertical rod (804), a fixing ring (805), a guide rod (806), a blocking disk (807) and a sleeve spring (808). The exhaust hole (801) is provided through the right sides of the upper and lower surfaces of the exhaust pipe (8). The oil cylinder (802) is fixedly provided at the right end of the exhaust pipe (8). The piston (803) is fixedly provided at the output end of the oil cylinder (802). The vertical rod (804) is fixedly provided on the left side of the exhaust pipe (8). The fixing ring (805) is fixedly provided on the left side of the vertical rod (804). The guide rod (806) is provided through the center of the vertical rod (804). The blocking disk (807) is fixedly provided at the left end of the guide rod (806). The sleeve spring (808) is fixedly provided between the blocking disk (807) and the vertical rod (804).

3. The vacuum exhaust device for immersed tube rock-embedded pile according to claim 2, characterized in that: When the oil cylinder (802) is extended to the minimum length, the exhaust hole (801) is located on the left side of the piston (803); when the oil cylinder (802) is extended to the maximum length, the exhaust hole (801) is located on the right side of the piston (803).

4. The vacuum exhaust device for immersed tube rock-embedded pile according to claim 3, characterized in that: The diameter of the blocking disk (807) is larger than the diameter of the central through hole of the fixing ring (805).

5. The vacuum exhaust device for immersed tube rock-embedded pile according to claim 4, characterized in that: The sleeve spring (808) is in a stretched state, and the right side surface of the blocking disk (807) is tightly attached to the left side surface of the fixing ring (805), so that the blocking disk (807) and the fixing ring (805) are connected in an airtight manner.

6. The vacuum exhaust device for immersed tube rock-embedded pile according to claim 5, characterized in that: The diameter of the blocking disk (807) is smaller than the inner diameter of the exhaust pipe (8).

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