A bored pile hole opening sediment intercepting device

Abstract

This invention discloses a sediment interception device for cast-in-place pile boreholes, comprising: a cover body with a pipe extending through its top; a partition plate disposed within the cover body; two mud pipes, both extending through the partition plate; two pneumatic components, both fixedly mounted on the top of the cover body; and two sealing components connected to the two pneumatic components respectively. This invention enables the pneumatic components to drive a sleeve rod to descend and rotate, thereby causing a connecting plate, plug, and rubber strip to descend and rotate. The rotating rubber strip pushes away sediment from the inner surface of the upper end of the mud pipe, thus cleaning the inner surface. When the rubber ring enters the mud pipe, it seals the mud pipe. Because the upper end of the mud pipe is cleaned, small stones can prevent them from affecting the sealing performance of the rubber ring.

Description

Technical Field

[0001] This invention relates to the field of sediment cleaning technology for cast-in-place pile holes, and in particular to a sediment interception device at the borehole opening of a cast-in-place pile. Background Technology

[0002] Cast-in-place piles are piles constructed by drilling holes in the foundation soil using mechanical methods such as drilling, steel pipe extrusion, or manual excavation, placing a reinforcing cage inside, and pouring concrete. Typically, after drilling, the sediment inside the pile hole needs to be cleaned to ensure the stability of the cast-in-place pile and the foundation. In most cases, clean mud is used to flush the pile hole, using the mud to wash the sediment at the bottom of the pile hole to the surface. When the mud input stops, the sediment will fall back to the bottom of the pile hole under gravity. Therefore, it is necessary to intercept the sediment at the opening of the pile hole to ensure the flushing effect. To address this, a sediment interception device for the opening of cast-in-place pile holes is proposed.

[0003] In existing technologies, most sediment interception devices function similarly to one-way valves, preventing mud backflow that could cause sediment to fall back. However, mud contains not only sediment but also a lot of fine sand, which can reduce the sealing performance of the valve and lead to backflow. This means that sediment in the pipe can still enter the pile hole along with the backflow of mud. To avoid this, additional flushing time is required, which affects construction efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a sediment interception device at the borehole opening of a cast-in-place pile, which is used for auxiliary treatment during the cleaning process of the cast-in-place pile borehole to prevent sediment from falling back to the bottom of the pile, thereby solving the technical problems in the prior art.

[0005] The technical solution provided by this invention: a sediment interception device at the orifice of a cast-in-place pile, comprising:

[0006] A cover, wherein a tube is provided through the top of the cover;

[0007] A partition is disposed inside the enclosure;

[0008] Two mud pipes, both of which are installed through the partition plate;

[0009] Two pneumatic components, both of which are fixedly mounted on the top of the cover;

[0010] Two sealing assemblies, each of which is connected to one pneumatic assembly;

[0011] A first fixing component and a second fixing component are provided. The first fixing component is disposed on the side wall of the cover and is used to fix the device to the protective tube. The second fixing component is disposed on the inner wall of the tube and is used to fix the conduit and the tube.

[0012] A connecting component, the connecting component being used to connect a first fixed component and a second fixed component;

[0013] A processing component, which is connected to the cover, is used to process sediment in the mud.

[0014] The sealing assembly includes:

[0015] A connecting plate, which is fixed to the pneumatic assembly;

[0016] A plug, the plug being fixed to the bottom of the connecting plate;

[0017] A rubber strip, which is fixed to the side of the plug;

[0018] A rubber ring is fixedly fitted onto the plug.

[0019] Furthermore, the pneumatic assembly includes:

[0020] A sleeve, which is fixed to the top of the cover;

[0021] The first piston is slidably disposed within the sleeve;

[0022] A sleeve rod, which is fixed to the bottom of the first piston, and the sleeve rod and the connecting plate are fixed together;

[0023] The first spring is fixed to the inner wall of the sleeve, and the first spring and the first piston are fixed together.

[0024] A solenoid valve, which is fixed to the outer wall of the pipe body and is connected to the second fixing component;

[0025] A connecting pipe, one end of which is connected to a solenoid valve, and the other end of which is connected to a sleeve.

[0026] Furthermore, it also includes:

[0027] An annular seat, which is fixed to the bottom inner wall of the sleeve, and a plurality of sliders are fixed inside the annular seat;

[0028] Multiple spiral grooves are formed on the side wall of the sleeve rod, and the multiple spiral grooves and multiple sliders are slidably connected one-to-one.

[0029] Furthermore, it also includes:

[0030] A sealing ring is provided, the annular seat is fixed to the top of the cover, and the sleeve passes through the annular seat.

[0031] Furthermore, the first fixing component includes:

[0032] The first mounting frame is fixedly sleeved on the side wall of the cover;

[0033] The first rubber airbag is fixed inside the first mounting frame.

[0034] Furthermore, the second fixing component includes:

[0035] The second mounting frame is fixed to the inner wall of the pipe body;

[0036] The second rubber airbag is fixed to the second mounting frame, and the solenoid valve is connected to the second rubber airbag.

[0037] Furthermore, the connectivity component includes:

[0038] A connecting tube, one end of which is connected to the second rubber airbag, and the other end of which is connected to the first rubber airbag;

[0039] A valve, which is fixed to the outer wall of the pipe body and is connected to the second rubber airbag;

[0040] An air intake pipe is fixed to the outer wall of the pipe body and is connected to the second rubber airbag.

[0041] Furthermore, the processing component includes:

[0042] A processing tank, wherein an input pipe is provided through the top of the processing tank and the input pipe is connected to the cover;

[0043] A cover, which is hinged to the side wall of the processing tank;

[0044] An output pipe is provided through the bottom of the side wall of the processing tank.

[0045] Furthermore, it also includes:

[0046] Multiple second filters are fixed to the inner wall of the treatment tank and distributed vertically. Each second filter is fixedly provided with an overflow pipe, and the multiple overflow pipes are distributed in an alternating manner.

[0047] The first filter screen is fixed to the inner wall of the treatment tank and is positioned above the second filter screen.

[0048] Furthermore, it also includes:

[0049] A cylindrical body, which is disposed through the top of the partition;

[0050] The second piston is slidably disposed inside the cylinder;

[0051] The second spring is fixed to the inner wall of the cylinder, and the second spring and the second piston are also fixed together.

[0052] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0053] This invention, through the design of pneumatic components, connecting plates, plugs, rubber strips, and rubber rings, enables the pneumatic components to drive the sleeve rod to descend and rotate simultaneously. This, in turn, causes the connecting plate, plug, and rubber strip to descend and rotate. The rotating rubber strip pushes away mud and sand from the inner surface of the upper end of the mud pipe, thus cleaning the inner surface of the upper end of the mud pipe. When the rubber ring enters the mud pipe, it seals the mud pipe. Because the upper end of the mud pipe is cleaned, small stones can be prevented from affecting the sealing performance of the rubber ring. Attached Figure Description

[0054] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0055] Figure 2 This is a schematic diagram of the pipe body and valve structure of the present invention;

[0056] Figure 3 This is a schematic diagram of the partition and tube structure of the present invention;

[0057] Figure 4 This is a cross-sectional structural diagram of the tube body and cover body of the present invention;

[0058] Figure 5 This is a schematic diagram of the sleeve and spiral groove structure of the present invention;

[0059] Figure 6 This is a schematic cross-sectional view of the sleeve structure of the present invention;

[0060] Figure 7 This is a schematic diagram of the annular seat and slider structure of the present invention;

[0061] Figure 8 This is a schematic diagram of the processing tank, the first filter screen, and the second filter screen of the present invention;

[0062] Figure 9 This is a schematic cross-sectional view of the cylindrical structure of the present invention.

[0063] In the diagram: 1. Cover; 2. First mounting frame; 3. First rubber airbag; 4. Pipe; 5. Valve; 6. Inlet pipe; 7. Second mounting frame; 8. Second rubber airbag; 9. Sleeve; 10. Solenoid valve; 11. Connecting pipe; 12. Connecting pipe; 13. Treatment tank; 14. Input pipe; 15. Output pipe; 16. Partition plate; 17. Mud pipe; 18. Sleeve rod; 19. Connecting plate; 20. Cylinder; 21. Sealing ring; 22. Annular seat; 23. Spiral groove; 24. First spring; 25. First piston; 26. Rubber strip; 27. Plug; 28. Rubber ring; 29. ​​Slider; 30. Cover; 31. First filter screen; 32. Second filter screen; 33. Overflow pipe; 34. Second spring; 35. Second piston. Detailed Implementation

[0064] The technical solutions of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can typically be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0065] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0066] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0067] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0068] The following is combined with Figures 1 to 9As shown, an embodiment of the present invention provides a sediment interception device for the borehole of a cast-in-place pile, comprising:

[0069] Cover 1, with a tube 4 extending through the top of cover 1;

[0070] Partition 16 is disposed inside the cover 1;

[0071] Two mud pipes 17 are both installed through the partition plate 16;

[0072] Two pneumatic components are fixedly mounted on the top of the cover 1;

[0073] Two sealing assemblies, each connected to one of the two pneumatic assemblies;

[0074] The first fixing component and the second fixing component are provided. The first fixing component is set on the side wall of the cover 1 and is used to fix the device to the protective pipe. The second fixing component is set on the inner wall of the pipe body 4 and is used to fix the guide pipe and the pipe body 4. The protective pipe is the pipe driven into the hole when the pile hole is drilled. The guide pipe is the pipe that guides the mud to the bottom of the pile hole during the grouting process.

[0075] A connecting component, used to connect a first fixed component and a second fixed component;

[0076] The processing component is connected to the cover 1 and is used to process sediment in the mud.

[0077] The sealing components include:

[0078] Connecting plate 19, connecting plate 19 and pneumatic assembly are fixed;

[0079] Plug 27 is fixed to the bottom of connecting plate 19;

[0080] Rubber strip 26 is fixed to the side of plug 27;

[0081] Rubber ring 28 is fixedly fitted onto plug 27.

[0082] Furthermore, the pneumatic components include:

[0083] Sleeve 9, sleeve 9 is fixed to the top of cover 1;

[0084] The first piston 25 is slidably disposed inside the sleeve 9;

[0085] Sleeve rod 18 is fixed to the bottom of the first piston 25, and sleeve rod 18 is fixed to connecting plate 19;

[0086] The first spring 24 is fixed on the inner wall of the sleeve 9, and the first spring 24 and the first piston 25 are fixed together.

[0087] Solenoid valve 10 is fixed on the outer wall of pipe body 4, and solenoid valve 10 is connected to the second fixed component.

[0088] Connecting pipe 11, one end of which is connected to solenoid valve 10, and the other end of which is connected to sleeve 9.

[0089] Also includes:

[0090] The annular seat 22 is fixed on the bottom inner wall of the sleeve 9, and multiple sliders 29 are fixed inside the annular seat 22.

[0091] Multiple spiral grooves 23 are formed on the side wall of the sleeve rod 18, and the multiple spiral grooves 23 and multiple sliders 29 are slidably connected one-to-one.

[0092] When the first piston 25 descends, it drives the sleeve rod 18 to descend. During the descent of the sleeve rod 18, the sleeve rod 18 rotates synchronously through the guidance of the slider 29 and the spiral groove 23. During the rotation, the sleeve rod 18 pushes away the mud and sand on the inner surface of the upper end of the mud pipe 17 through the action of the rubber strip 26, so as to achieve the cleaning of the inner surface of the upper end of the mud pipe 17. When the connecting plate 19 descends to the bottom, the rubber ring 28 enters the mud pipe 17 to achieve the sealing of the mud pipe 17.

[0093] Also includes:

[0094] The sealing ring 21 and the annular seat 22 are fixed to the top of the cover 1, and the sleeve 18 passes through the annular seat 22.

[0095] The first fixing component includes:

[0096] The first mounting frame 2 is fixedly sleeved on the side wall of the cover 1;

[0097] The first rubber airbag 3 is fixed inside the first mounting frame 2.

[0098] Furthermore, the second fixing component includes:

[0099] The second mounting frame 7 is fixed to the inner wall of the pipe body 4;

[0100] The second rubber airbag 8 is fixed to the second mounting frame 7, and the solenoid valve 10 is connected to the second rubber airbag 8.

[0101] Gas is injected into the second rubber airbag 8 through the air inlet pipe 6, and then the gas enters the first rubber airbag 3 through the connecting pipe 12, so that the first rubber airbag 3 and the second rubber airbag 8 expand. When the second rubber airbag 8 expands, it squeezes the guide tube, thereby fixing the guide tube and the tube body 4. When the first rubber airbag 3 expands, it is squeezed on the inner wall of the protective tube, thereby fixing the protective tube and the cover body 1.

[0102] The connectivity components include:

[0103] The connecting pipe 12 is connected at one end to the second rubber airbag 8 and at the other end to the first rubber airbag 3.

[0104] Valve 5 is fixed on the outer wall of pipe body 4 and is connected to the second rubber airbag 8.

[0105] The air intake pipe 6 is fixed on the outer wall of the pipe body 4 and is connected to the second rubber airbag 8.

[0106] After the cleaning work is completed, open valve 5 to release the gas in the first rubber airbag 3 and the second rubber airbag 8, thereby separating the device from the protective tube and the conduit.

[0107] The processing components include:

[0108] The processing tank 13 has an input pipe 14 that runs through its top and is connected to the cover 1.

[0109] The cover 30 is hinged to the side wall of the processing tank 13;

[0110] Output pipe 15 is installed through the bottom of the side wall of processing tank 13.

[0111] The mud treated in treatment tank 13 can be returned to the mud pool or used directly by the mud pump, achieving rapid mud treatment.

[0112] Also includes:

[0113] Multiple second filters 32 are fixed on the inner wall of the treatment tank 13 and are distributed vertically. Each second filter 32 is fixedly provided with an overflow pipe 33, and the multiple overflow pipes 33 are distributed in an alternating manner.

[0114] The first filter screen 31 is fixed on the inner wall of the treatment tank 13 and is positioned above the second filter screen 32.

[0115] The flowing mud carries the sediment from the bottom of the grouting pile hole into the treatment tank 13. Coarse particles are filtered through the first filter screen 31 in the treatment tank 13 and then fall onto the second filter screen 32 for fine filtration. As the working time increases, when a large amount of fine mud and sand accumulates on the second filter screen 32, affecting its filtration efficiency, the liquid level gradually rises. When the liquid level exceeds the end of the overflow pipe 33, it passes through the overflow pipe 33 and falls onto the second filter screen 32 below. By using multiple second filters 32 and staggered overflow pipes 33, the treatment effect and efficiency of this device on the mud are ensured during the flushing process.

[0116] Also includes:

[0117] The cylinder 20 is disposed through the top of the partition 16;

[0118] The second piston 35 is slidably disposed inside the cylinder 20;

[0119] The second spring 34 is fixed on the inner wall of the cylinder 20, and the second spring 34 is fixed to the second piston 35.

[0120] By sliding the second piston 35, the liquid below the baffle 16 can enter the cylinder 20, allowing the liquid pressure below the baffle 16 to be transferred, thereby ensuring that the rubber ring 28 can be fully inserted into the mud pipe 17. The purpose of moving the second piston 35 is to allow it to return to its original position by sliding the second spring 34 in a non-sealed state.

[0121] In specific use of the present invention, the cover 1 is placed at the end of the protective tube, the conduit is passed through the second mounting frame 7 and the conduit is made to enter the protective tube, then the air pump is connected to the air inlet pipe 6 and the air pump switch is turned on.

[0122] When the air pump is working, gas is injected into the second rubber airbag 8 through the air inlet pipe 6, and then the gas enters the first rubber airbag 3 through the connecting pipe 12, so that the first rubber airbag 3 and the second rubber airbag 8 expand. When the second rubber airbag 8 expands, it squeezes the guide tube to fix the guide tube and the tube body 4. When the first rubber airbag 3 expands, it squeezes the inner wall of the protective tube to fix the protective tube and the cover body 1. When the air pressure in the first rubber airbag 3 and the second rubber airbag 8 reaches a certain level, the air pump is turned off.

[0123] Then the cleaning work of the grouting pile hole can be carried out. Clean mud is injected into the bottom of the grouting pile hole through the mud pump and the conduit. The mud flows upward along the protective pipe in the grouting pile hole and passes through the mud pipe 17, and then enters the treatment tank 13 through the input pipe 14.

[0124] During this process, the flowing mud carries the sediment from the bottom of the grouting pile hole into the treatment tank 13. The coarse particles are filtered through the first filter screen 31 in the treatment tank 13 and then fall onto the second filter screen 32 for fine filtration. As the working time increases, when a lot of fine mud and sand accumulates on the second filter screen 32, affecting its filtration efficiency, the liquid level gradually rises. When the liquid level exceeds the end of the overflow pipe 33, it passes through the overflow pipe 33 and falls onto the second filter screen 32 below. By using multiple second filters 32 and staggered overflow pipes 33, the treatment effect and efficiency of this device on the mud are ensured during the flushing process.

[0125] After rinsing is completed, the solenoid valve 10 is switched on. High-pressure gas inside the first rubber airbag 3 and the second rubber airbag 8 enters the sleeve 9 through the connecting pipe 11, pushing the first piston 25 downwards, which in turn drives the sleeve rod 18 downwards. During the descent of the sleeve rod 18, guided by the slider 29 and the spiral groove 23, the sleeve rod 18 rotates synchronously. During rotation, the sleeve rod 18, through the action of the rubber strip 26, pushes away the mud and sand from the inner surface of the upper end of the mud pipe 17, thus achieving the cleaning of the inner surface of the upper end of the mud pipe 17. When connected... When plate 19 descends to its lowest point, rubber ring 28 enters mud pipe 17, sealing mud pipe 17. Since the upper end of mud pipe 17 is cleaned, small stones can be prevented from affecting the sealing performance of rubber ring 28 on mud pipe 17. During this process, plug 27 also enters mud pipe 17, causing the mud below baffle 16 to be squeezed, pushing the second piston 35 upward. Through the sliding of the second piston 35, the liquid below baffle 16 can enter cylinder 20 to ensure that rubber ring 28 can completely enter mud pipe 17.

[0126] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sediment interception device at the orifice of a cast-in-place pile, characterized in that, include: Cover (1), the top of the cover (1) is provided with a tube (4); A partition (16) is disposed inside the cover (1); Two mud pipes (17) are provided through the partition plate (16); Two pneumatic components, both of which are fixedly mounted on the top of the cover (1); Two sealing assemblies, each of which is connected to one pneumatic assembly; The first fixing component and the second fixing component are provided on the side wall of the cover (1) and are used to fix the interception device to the protective pipe driven into the hole during pile hole drilling. The second fixing component is provided on the inner wall of the pipe (4) and is used to fix the guide pipe and the pipe (4) that guide the mud to the bottom of the pile hole during grouting. A connecting component, the connecting component being used to connect a first fixed component and a second fixed component; A processing component, which is connected to the cover (1), is used to process sediment in the mud; The sealing assembly includes: Connecting plate (19), the connecting plate (19) and the pneumatic assembly are fixed; A plug (27) is fixed to the bottom of the connecting plate (19); A rubber strip (26) is fixed to the side of the plug (27); A rubber ring (28) is fixedly fitted onto the plug (27).

2. The sediment interception device at the borehole opening of a cast-in-place pile according to claim 1, characterized in that, The pneumatic assembly includes: Sleeve (9), which is fixed to the top of cover (1); The first piston (25) is slidably disposed inside the sleeve (9); Sleeve rod (18), which is fixed to the bottom of the first piston (25), and sleeve rod (18) and connecting plate (19) are fixed; The first spring (24) is fixed on the inner wall of the sleeve (9), and the first spring (24) and the first piston (25) are fixed together; Solenoid valve (10), the solenoid valve (10) is fixed on the outer wall of the pipe body (4), and the solenoid valve (10) is connected to the second fixed component; Connecting pipe (11), one end of which is connected to solenoid valve (10), and the other end of which is connected to sleeve (9).

3. The sediment interception device at the borehole opening of a cast-in-place pile according to claim 2, characterized in that, The pneumatic assembly also includes: An annular seat (22) is fixed on the bottom inner wall of the sleeve (9), and multiple sliders (29) are fixed inside the annular seat (22). Multiple spiral grooves (23) are formed on the side wall of the sleeve rod (18), and the multiple spiral grooves (23) and multiple sliders (29) are slidably connected one-to-one.

4. The sediment interception device at the orifice of a cast-in-place pile according to claim 3, characterized in that, The pneumatic assembly also includes: A sealing ring (21) is fixed to the top of the cover (1), and a sleeve (18) passes through the annular seat (22).

5. A sediment interception device at the orifice of a cast-in-place pile according to claim 2, characterized in that, The first fixing component includes: The first mounting frame (2) is fixedly sleeved on the side wall of the cover (1); The first rubber airbag (3) is fixed inside the first mounting frame (2).

6. A sediment interception device at the orifice of a cast-in-place pile according to claim 5, characterized in that, The second fixing component includes: The second mounting frame (7) is fixed on the inner wall of the tube body (4); The second rubber airbag (8) is fixed to the second mounting frame (7), and the solenoid valve (10) is connected to the second rubber airbag (8).

7. A sediment interception device at the orifice of a cast-in-place pile according to claim 6, characterized in that, The connectivity component includes: A connecting pipe (12) is connected at one end to a second rubber airbag (8) and at the other end to a first rubber airbag (3); Valve (5), which is fixed on the outer wall of the pipe body (4) and is connected to the second rubber airbag (8); The air intake pipe (6) is fixed on the outer wall of the pipe body (4) and is connected to the second rubber airbag (8).

8. A sediment interception device at the orifice of a cast-in-place pile according to claim 1, characterized in that, The processing component includes: The processing tank (13) has an input pipe (14) that runs through its top and is connected to the cover (1). A cover (30) is hinged to the side wall of the processing tank (13); Output pipe (15) is disposed through the bottom of the side wall of the processing tank (13).

9. A sediment interception device at the orifice of a cast-in-place pile according to claim 8, characterized in that, The processing component further includes: Multiple second filters (32) are fixed on the inner wall of the treatment tank (13) and are distributed vertically. Each second filter (32) is fixedly provided with an overflow pipe (33) and the multiple overflow pipes (33) are staggered. The first filter (31) is fixed on the inner wall of the processing tank (13) and is located above the second filter (32).

10. A sediment interception device at the orifice of a cast-in-place pile according to claim 1, characterized in that, Also includes: A cylindrical body (20) is provided through the top of the partition plate (16); The second piston (35) is slidably disposed inside the cylinder (20); The second spring (34) is fixed on the inner wall of the cylinder (20), and the second spring (34) is fixed to the second piston (35).

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