Foundation pit supporting pile capable of supporting in multiple directions

Abstract

The invention relates to the technical field of civil construction, in particular to a multi-direction supporting foundation pit supporting pile which comprises a pile body, a sliding groove is formed in the lower end of the pile body, a conical rod is slidably connected to the inner wall of the sliding groove, a cavity is formed in the side surface of the conical rod, a rack is fixedly connected to the inner wall of the cavity, and a gear is meshed with one side of the rack. The two sides of the gear are rotationally connected with shaft rods correspondingly, one shaft rod is rotationally connected with the inner wall of the sliding groove, and the two sides of the gear are provided with active connecting structures. Water is pumped out of the land around the conical rod, the situation that the land dives due to the fact that the moisture of the soil is too large is prevented, and meanwhile the pumped-out water is stored; the change of the water level is observed through the dial gauge to judge whether the land moves downwards or not, then when the conical rod needs to be pulled out, the conical rod is pulled out more mildly through continuous up-down movement and drainage of the conical rod, and damage to the foundation pit land after construction is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of civil engineering construction, and specifically to a foundation pit support pile with multi-directional support. Background Technique

[0002] With the acceleration of the urbanization process, the scale of projects such as high-rise buildings, underground transportation, and commercial complexes is continuously expanding, the excavation depth and scale of foundation pits are continuously increasing, traditional support structures are difficult to meet the requirements of complex geological conditions and environmental protection, and deep foundation pit projects face challenges such as complex surrounding environments, land subsidence and collapse, and great difficulty in groundwater control. It is necessary to develop more efficient support technologies.

[0003] A support pile for a building foundation pit with the publication number of CN 115142432 A includes: a support pile, on the surface of which a first storage groove and a fixing groove are opened; a reinforcement plate, on the surface of which a supporting plate is installed, on the surface of the supporting plate an extension column is installed, on the surface of the extension column a plugging groove is opened, in the plugging groove a telescopic rod is plugged, at the end of the reinforcement plate a threaded rod is screwed, and on the surface of the threaded rod a screwing column is screwed; and a first card slot, which is arranged on the surface of the support pile; the beneficial effect is that: the reinforcement plate proposed by the present invention is hinged in the fixing groove through a rotating shaft, the reinforcement plate can be rotated and stored in the first storage groove, the reinforcement plate can be fixed by screwing the screw rod into the first screw rod, and the telescopic rod is retracted into the plugging groove, the semi-circular ring is stuck in the second card slot, and then the telescopic rod is stuck in the first card slot to fix the telescopic rod in the plugging groove, and the reinforcement plate and the support pile form a ninety-degree angle.

[0004] However, in the above patent, when the support pile is inserted into the bottom of the inner cavity of the foundation pit, if there is too much groundwater, the position where the support pile enters the soil will be compacted due to the insertion of the support pile, resulting in a large amount of accumulated water. This will cause the soil around the support pile to be relatively wet and loose, affecting the support capacity of the foundation pit. At the same time, when the construction is completed and the foundation pile needs to be pulled out, if the foundation pile is pulled out forcefully, it is easy to carry a large amount of soil, causing geological damage to the foundation pit and affecting the construction effect. At the same time, when the local land of the foundation pit subsides, it is impossible to accurately observe the subsidence height, and it is impossible to further reinforce the subsided land. Summary of the Invention

[0005] The purpose of the invention is to provide a foundation pit support pile with multi-directional support to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present invention provides the following technical solution: A foundation pit retaining pile with multi-directional support, including a pile body. A chute is opened at the lower end of the pile body. A tapered rod is slidably connected to the inner wall of the chute. A cavity is opened on the side surface of the tapered rod. A rack is fixedly connected to the inner wall of the cavity. A gear is meshed with one side of the rack. Shaft rods are rotatably connected to both sides of the gear. Active connection structures are installed on both sides of the gear. A rotating rod is rotatably connected to both sides of the pile body. An elastic transmission structure is installed on the outer wall of the rotating rod and is connected to the shaft rod close to the inner wall of the chute, capable of enabling the gear to quickly rotate in the reverse direction and drive the tapered rod to move in the reverse direction when the active connection structure fails to drive the gear to rotate; Two water extraction pipes are symmetrically opened inside the tapered rod. Elastic valve structures are installed at the upper slots of the water extraction pipes. A water seepage structure communicated with the water extraction pipes is installed at the bottom of the tapered rod. A scale is embedded on the outer wall of the pile body; Connection structures for connecting adjacent rotating rods are installed at both ends of the rotating rod.

[0007] Preferably, the active connection structure includes two coupling shafts I. The coupling shafts I are symmetrically arranged on both sides of the gear and are slidably connected to the shaft rods at corresponding positions. A spring I is fixedly connected between each coupling shaft I and the gear. A coupling shaft II is meshed with the side of each spring I away from the gear, and the coupling shaft II is fixedly connected to the shaft rod at the corresponding position.

[0008] Preferably, the elastic transmission structure includes a positioning ring. The positioning ring is fixedly connected to the outer wall of the rotating rod. A belt is also rotatably connected to the outer wall of the rotating rod. A spring II is fixedly connected between the positioning ring and the belt. A small pulley is sleeved on the outer wall of the shaft rod close to the inner wall of the chute. A belt is jointly sleeved between the small pulley and a large pulley.

[0009] Preferably, one end of the shaft rod away from the small pulley is fixedly connected to a motor. The motor is fixedly connected to the inner side wall of the chute.

[0010] Preferably, the water seepage structure includes a water seepage tank. The water seepage tank is opened inside the lower end of the tapered rod and is communicated with the water extraction pipes. A number of water seepage openings communicated with the water seepage tank are opened at the lower end of the tapered rod.

[0011] Preferably, the elastic valve structure includes a sliding groove. The sliding groove is opened on the inner side wall of the water extraction pipe. Empty slots are opened at the upper and lower slot openings of the sliding groove, and the upper empty slot is communicated with the chute. A drain cover is fixedly connected to the upper slot opening of the upper empty slot. A spring III is fixedly connected to the lower end of the drain cover. A piston slidably connected to the sliding groove is fixedly connected to the lower end of the spring III.

[0012] Preferably, the connecting structure includes two connecting blocks symmetrically arranged at both ends of the rotating rod. A limiting groove is formed on the side of each connecting block away from the rotating rod. A threaded rod is slidably connected to the inner wall of the limiting groove, and a fourth spring is fixedly connected between one end of the threaded rod and the inner wall of the limiting groove.

[0013] Preferably, a protective sleeve is fixedly connected to the end of the connecting block away from the rotating rod. A positioning block is arranged on the side of the threaded rod away from the connecting block. Internal threaded cylinders are symmetrically arranged on both sides of the positioning block, and each internal threaded cylinder can be screwed with the threaded rod at the corresponding position. A protective sleeve capable of being movably connected to the internal threaded cylinder is fixedly connected to one end of each connecting block. Connecting holes are formed through the side surfaces of the positioning block and the connecting block.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The accumulated water is infiltrated into the inside of the infiltration tank through the water seepage port, and then the infiltrated water is pumped into the cavity of the sliding groove for storage through the water extraction pipe. At the same time, when the land moves downward and drives the tapered rod to move, the change in the water level inside the sliding groove is used to judge whether the water level moves downward. When local subsidence occurs at the bottom of the foundation pit, the land moves downward to drive the tapered rod to slide downward and drive the rotating rod to rotate. The rotation of the rotating rod causes the connecting block to rotate, thereby adjusting the orientation of the connecting hole, facilitating the staff to re-install the anchor rod for positioning the connecting hole. At the same time, when the connecting hole rotates, the connecting structure can make the connection between the pile body in the land subsidence area and the pile bodies installed on both sides closer, improving the support firmness. At the same time, when it is necessary to pull out the tapered rod, when the soil adsorption force on the surface of the tapered rod is too strong, every time the tapered rod rises, a part of the water inside the sliding groove will be discharged through the water seepage port to the periphery of the tapered rod, reducing the soil adsorption force around the tapered rod. Then the active connection structure is disconnected to make the tapered rod descend. By repeating the process of continuously lifting and adding water up and down, the soil around the tapered rod can be made more moist and loose, facilitating the pulling out of the tapered rod and preventing damage to the foundation pit caused by hard pulling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further explains the present invention with reference to the drawings and embodiments: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the tapered rod inserted into the foundation pit of the present invention; Figure 3 It is a schematic diagram of the structure of the large pulley of the present invention; Figure 4 It is a schematic diagram of the structure of the first coupling of the present invention; Figure 5 It is a cross-sectional structure schematic diagram of the water extraction pipe of the present invention; Figure 6 It is a cross-sectional structure schematic diagram of the threaded rod of the present invention; Figure 7 Schematic diagram of the partial structure of the tapered rod of the present invention; Figure 8 Of the present invention Figure 5 Local enlarged view at position A in; Figure 9 Of the present invention Figure 5 Local enlarged view at position B in; Figure 10 Of the present invention Figure 6 Local enlarged view at position C in.

[0016] Explanation of reference numerals: 1, pile body; 2, tapered rod; 3, chute; 4, cavity; 5, rotating rod; 6, rack; 7, shaft rod; 8, gear; 9, first spring; 10, first coupling; 11, second coupling; 12, small pulley; 13, belt; 14, large pulley; 15, second spring; 16, positioning ring; 17, motor; 18, water seepage tank; 19, water seepage port; 20, water suction pipe; 21, sliding groove; 22, empty groove; 23, drain cover; 24, third spring; 25, piston; 26, connecting block; 27, connecting hole; 28, limiting groove; 29, fourth spring; 30, threaded rod; 31, protective sleeve; 32, internal threaded cylinder; 33, positioning block; 34, scale; 35, water pipe; 36, foundation pit. Detailed implementation manners

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a multi-directionally supported foundation pit retaining pile, including a pile body 1, characterized in that: a chute 3 is opened at the lower end of the pile body 1, the inner wall of the chute 3 is slidably connected with a tapered rod 2, a cavity 4 is opened on the side surface of the tapered rod 2, a rack 6 is fixedly connected to the inner wall of the cavity 4, one side of the rack 6 is engaged with a gear 8, both sides of the gear 8 are rotatably connected with a shaft rod 7, and one of the shaft rods 7 is rotatably connected to the inner wall of the chute 3, active connection structures are installed on both sides of the gear 8, and the active connection structures can drive the gear 8 to rotate when not subjected to large resistance, the two sides of the pile body 1 are jointly rotatably connected with a rotating rod 5, an elastic transmission structure is installed on the outer side wall of the rotating rod 5, and the elastic transmission structure is connected to the shaft rod 7 close to the inner wall of the chute 3, and can make the gear 8 quickly rotate in the reverse direction and drive the tapered rod 2 to move in the reverse direction when the active connection structure cannot drive the gear 8 to rotate; Two water extraction pipes 20 are symmetrically arranged inside the conical rod 2. An elastic valve structure is installed at the upper notch of the water extraction pipe 20. A water seepage structure communicated with the water extraction pipe 20 is installed at the bottom of the conical rod 2. A scale 34 is embedded in the outer side wall of the pile body 1, and a water pipe 35 communicated with the chute 3 is installed at the upper end of the pile body 1; Connection structures for connecting adjacent rotating rods 5 are installed at both ends of the rotating rod 5, which can connect the ends of the rotating rods 5 on every two pile bodies 1 that are close to each other, and the connection structure can rotate and tighten according to the downward movement of the conical rod 2.

[0019] Specifically, referring to Figure 2 and Figure 3 , the rotation of the gear 8 drives the rack 6 to slide up and down. During the sliding process of the rack 6, it drives the conical rod 2 to slide up and down in the cavity of the chute 3, so that the conical rod 2 is obliquely inserted into the bottom of the foundation pit 36, and the side of the pile body 1 abuts against the side wall of the foundation pit 36, thereby playing a role in obliquely resisting the foundation pit 36.

[0020] Among them, the active connection structure includes two couplings one 10. The couplings one 10 are symmetrically arranged on both sides of the gear 8 and are slidably connected to the corresponding shaft rods 7. A spring one 9 is fixedly connected between each coupling one 10 and the gear 8. A coupling two 11 is meshed on the side of each spring one 9 away from the gear 8, and the coupling two 11 is fixedly connected to the corresponding shaft rod 7.

[0021] Among them, the elastic transmission structure includes a positioning ring 16. The positioning ring 16 is fixedly connected to the outer side wall of the rotating rod 5. A belt 13 is also rotatably connected to the outer side wall of the rotating rod 5. A spring two 15 is fixedly connected between the positioning ring 16 and the belt 13. A small pulley 12 is sleeved on the outer side wall of the shaft rod 7 close to the inner wall of the chute 3, and the small pulley 12 and the large pulley 14 are jointly sleeved with the belt 13.

[0022] One end of the shaft rod 7 away from the small pulley 12 is fixedly connected with a motor 17, and the motor 17 is fixedly connected to the inner side wall of the chute 3.

[0023] Specifically, referring to Figure 3 、 Figure 4 and Figure 6, where the meshing part of coupling 2 11 and coupling 1 10 is a beveled side on one side and a straight side on the other side, and at the same time, the beveled sides of every two meshing couplings 10 and coupling 2 11 can conflict with each other, and the straight sides can also conflict with each other. If coupling 2 11 on the left side of gear 8 rotates clockwise, the straight side of coupling 2 11 on the left side will conflict with the straight side of coupling 1 10, and drive coupling 1 10 to rotate clockwise, and coupling 10 rotates and then drives spring 1 9 and gear 8 to rotate. The gear 8 rotates clockwise, and the left coupling 10 and the coupling 2 11 will not be separated during the clockwise rotation. However, during the clockwise rotation, the right coupling 10 and the coupling 2 11 are in bevel contact. If the right coupling 11 is also driven to rotate due to the inability of the rotating rod 5 to rotate, the right coupling 10 and the coupling 2 11 will be separated. When the gear 8 rotates and drives the rack 6 to move, the cone rod 2 will slide downward and be inserted into the bottom of the pit 36. Figure 2 , the cone rod 2 is in a state of being inserted into the bottom of the foundation pit 36; When it is necessary to pull the cone rod 2 out of the bottom of the foundation pit 36, the motor 17 drives the left coupling 10 and the coupling 2 11 to rotate counterclockwise. At this time, the contact surface between the left coupling 2 11 and the coupling 1 10 is a bevel, and the contact surface between the right coupling 10 and the coupling 2 11 is a straight edge. During the rotation of the two shafts 7, the small pulley 12 will rotate together with it, and drive the large pulley 14 to rotate through the belt 13. If the rotating rod 5 cannot rotate normally while the large pulley 14 rotates, This will drive spring 2 15 to curl and store elastic potential energy. At this time, if gear 8 rotates to drive the meshing rack 6 and cone rod 2 to rise, the adsorption force of the ground will be too large, causing the pile body 1 to be unable to continue to rise, and the coupling 1 10 and coupling 2 11 on the left will be disengaged. At the same time, spring 2 15 releases the stored elastic potential energy to drive the shaft 7 on the right to rotate clockwise. The shaft 7 drives gear 8 to rotate clockwise through coupling 2 11 and coupling 1 10, thereby causing the rack 6 and cone rod 2 to drop rapidly.

[0024] Among them, the seepage structure includes a seepage trough 18, which is opened inside the lower end of the cone rod 2 and is connected to the pumping pipe 20. The lower end of the cone rod 2 is provided with a plurality of seepage ports 19 connected to the seepage trough 18. A filter net is installed at the notch of the seepage port 19 to prevent soil from entering the cavity of the seepage trough 18.

[0025] Specifically, when the cone rod 2 is inserted into the bottom of the foundation pit 36, if there is a lot of moisture at the bottom of the foundation pit 36, since the soil around the part where the cone rod 2 is inserted is relatively compact, it is easy to cause water accumulation around the cone rod 2, and the accumulated water is difficult to drain. At this time, the excess water will seep into the inside of the seepage trough 18 through the seepage port 19, and then the water inside the seepage trough 18 will be pumped into the cavity of the chute 3 through the pumping pipe 20.

[0026] Among them, the elastic valve structure includes a sliding groove 21, which is opened on the inner side wall of the water extraction pipe 20. Empty grooves 22 are opened at both the upper and lower ends of the sliding groove 21, and the upper empty groove 22 communicates with the sliding groove 3. A drainage cover 23 is fixedly connected to the upper notch of the upper empty groove 22. A third spring 24 is fixedly connected to the lower end of the drainage cover 23, and a piston 25 that is slidably connected to the sliding groove 21 is fixedly connected to the lower end of the third spring 24.

[0027] Specifically, when the upper end of the water pipe 35 is connected to a water pump and water is pumped into the inside of the sliding groove 3, the air pressure inside the sliding groove 3 decreases, thereby pulling the piston 25 to slide upward. When the piston 25 slides from the inner wall of the sliding groove 21 into the upper empty groove 22, the seepage water inside the seepage tank 18 will be pumped into the inside of the sliding groove 3 by the empty groove 22 and stored until the water level inside the sliding groove 3 reaches the position of the lower notch of the water pipe 35, and then it will be pumped away by the water pipe 35. At the same time, when there is water stored inside the sliding groove 3, the scale 34 can observe the height of the water level. When the conical rod 2 descends, the height of the water level will change, so that the staff can quickly observe whether the bottom of the foundation pit 36 has sunk. At the same time, referring to Figure 6 , when the gear 8 rotates counterclockwise and drives the conical rod 2 to lift upward, it is difficult to pull out the conical rod 2 due to the adsorption of the soil. At this time, as the conical rod 2 is lifted, the adsorption force becomes higher, and then the piston 25 will be adsorbed downward through the water seepage port 19, the seepage tank 18, and the water extraction pipe 20, so that the piston 25 slides downward. When the piston 25 enters the lower empty groove 22, the water inside the sliding groove 3 will be pumped out and discharged to the lower end of the conical rod 2 through the empty groove 22, the seepage tank 18, and the water seepage port 19. At this time, when the active connection structure is disconnected and the gear 8 is pushed by the elastic transmission structure to rotate clockwise to reset, the conical rod 2 will descend again, so that the accumulated water on the outer side wall of the conical rod 2 increases, and the soil around the conical rod 2 becomes loose due to the increase in the accumulated water. In this way, every time the conical rod 2 cannot be pulled out, a part of the water will be released around the conical rod 2, so as to prevent damage to the foundation pit 36 and the conical rod 2 caused by hard pulling. At the same time, the suction force required for the piston 25 to move upward is greater, and the suction force required for the piston 25 to move downward is smaller, so that when the conical rod 2 descends, the pressure generated by the descent of the conical rod 2 will not cause the sliding groove 21 to slide upward and cause the accumulated water to flow back into the inside of the seepage tank 18.

[0028] Among them, the connection structure includes two connection blocks 26, which are symmetrically arranged at both ends of the rotating rod 5. A limiting groove 28 is opened on the side of each connection block 26 away from the rotating rod 5. A threaded rod 30 is slidably connected to the inner wall of the limiting groove 28, and a fourth spring 29 is fixedly connected between one end of the threaded rod 30 and the inner wall of the limiting groove 28.

[0029] Wherein, a protective sleeve 31 is fixedly connected to one end of the connecting block 26 away from the rotating rod 5. A positioning block 33 is arranged on the side of the threaded rod 30 away from the connecting block 26. Internal threaded cylinders 32 are symmetrically arranged on both sides of the positioning block 33, and each internal threaded cylinder 32 can be screwed with the threaded rod 30 at the corresponding position. A protective sleeve 31 capable of movably connecting with the internal threaded cylinder 32 is fixedly connected to one end of each connecting block 26. Connecting holes 27 are formed through the side surfaces of the positioning block 33 and the connecting block 26.

[0030] Specifically, when two pile bodies 1 are inserted side by side into the inside of the foundation pit 36, by placing the positioning block 33 between the two pile bodies 1, and then inserting the internal threaded cylinders 32 on both sides of the chute 3 into the corresponding protective sleeves 31. Since the notch of the internal threaded cylinder 32 abuts against the threaded rod 30 at the corresponding position, the threaded rod 30 slides inside the limiting groove 28, and the fourth spring 29 is stretched to store elastic potential energy. Then, by rotating the positioning block 33, the internal threaded cylinders 32 on both sides of the positioning block 33 are threadedly connected with the corresponding threaded rods 30. After the internal threaded cylinder 32 rotates and tightens the threaded rod 30 for two turns, it can be rotated in the reverse direction to make the positioning block 33 in a horizontal position. At this time, an anchor rod can be installed on the wall of the foundation pit 36 through the connecting hole 27 on the positioning block 33, and the anchor rod is screwed with the connecting hole 27 on the positioning block 33. Reference Figure 6 , when a number of pile bodies 1 and conical rods 2 are installed in a row on the wall of the foundation pit 36, if the soil under one of the conical rods 2 moves downward, at this time, due to the subsidence of the bottom of the foundation pit 36, the staff needs to carry out secondary anchor rod reinforcement around the conical rod 2, but the orientation of the anchor rod needs to be slightly deflected towards the bottom of the pit. At this time, the rack 6, the gear 8 and the elastic transmission structure will drive the rotating rod 5 to rotate slightly clockwise. During the rotation of the rotating rod 5, the connecting block 26 will be driven to rotate slightly. At this time, the connecting hole 27 on the connecting block 26 will have a slight offset in the orientation of its hole through clockwise rotation. When the staff installs the anchor rod on the connecting hole 27 on the connecting block 26, the reverse direction of the anchor rod will have a slight offset, which can assist the staff to quickly position the secondary large anchor rod, reduce the measurement time, and prevent the soil from further moving downward. At the same time, during the rotation of the rotating rod 5, the connecting blocks 26 on both sides will be further screwed and rotated with the threaded rods 30 at the corresponding positions, so that the connection between the pile body 1 where the soil moves downward and the pile bodies 1 installed side by side on both sides is further tightened, and the support firmness of the area where the soil moves downward is improved.

[0031] Working principle: First, the staff inserts the tapered rod 2 into the bottom of the foundation pit 36, and makes the side surface of the tapered rod 2 contact with the inner wall of the foundation pit 36. Then, every two tapered rods 2 are connected together through the positioning block 33 and the internal thread cylinder 32. Then, an anchor rod is installed in the connection hole 27 on the positioning block 33, and the anchor rod is inserted into the inner wall of the foundation pit 36. When there is water accumulation on the outer wall of the tapered rod 2, the accumulated water will penetrate into the inside of the water seepage groove 18, and then the penetrated water is pumped into the cavity of the chute 3 through the water suction pipe 20 for storage. At the same time, when the land moves downward and drives the tapered rod 2 to move, the water level inside the chute 3 changes, and the change of the water level can also be observed through the scale 34 to judge whether the land moves downward. When there is local subsidence at the bottom of the foundation pit 36, the land subsidence drives the tapered rod 2 to slide downward and drives the rotating rod 5 to rotate. The rotation of the rotating rod 5 makes the connecting block 26 rotate, so as to adjust the orientation of the connecting hole 27, which is convenient for the staff to re-install the anchor rod in the connecting hole 27 for positioning. At the same time, when the connecting hole 27 rotates, the connection structure can make the connection between the pile body 1 in the land subsidence area and the pile bodies 1 installed on both sides closer, improving the support firmness. At the same time, when it is necessary to pull out the tapered rod 2, when the soil adsorption force on the surface of the tapered rod 2 is too strong, every time the tapered rod 2 rises, a part of the water inside the chute 3 will be discharged into the periphery of the tapered rod 2 through the water seepage hole 19, reducing the soil adsorption force around the tapered rod 2. Then the active connection structure is disconnected, causing the tapered rod to descend. By repeating the process of continuously lifting and adding water up and down, the soil around the tapered rod 2 can be made more moist and loose, facilitating the pulling out of the tapered rod and preventing damage to the foundation pit caused by forced pulling out.

[0032] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A multi-directionally supported foundation pit support pile, comprising a pile body (1), characterized in that: The lower end of the pile body (1) is provided with a slide groove (3), the inner wall of the slide groove (3) is slidably connected to a cone rod (2), the side surface of the cone rod (2) is provided with a cavity (4), the inner wall of the cavity (4) is fixedly connected to a rack (6), one side of the rack (6) is meshed with a gear (8), both sides of the gear (8) are rotatably connected to a shaft rod (7), both sides of the gear (8) are installed with active connection structures, both sides of the pile body (1) are rotatably connected to a rotating rod (5), the outer side wall of the rotating rod (5) is installed with an elastic transmission structure, and the elastic transmission structure is connected to the shaft rod (7) close to the inner wall of the slide groove (3); Two water pumping pipes (20) are symmetrically arranged inside the conical rod (2), an elastic valve structure is installed on the upper notch of the water pumping pipe (20), a water seepage structure connected to the water pumping pipe (20) is installed at the bottom of the conical rod (2), and a scale (34) is embedded in the outer wall of the pile body (1); Both ends of the rotating rod (5) are provided with connection structures for connecting adjacent rotating rods (5).

2. A multi-directionally supported foundation pit support pile according to claim 1, characterized in that: The active connection structure comprises two couplings 1 (10), wherein the couplings 1 (10) are symmetrically arranged on both sides of the gear (8) and are slidably connected to the shaft rods (7) at corresponding positions, a spring 1 (9) is fixedly connected between each coupling 1 (10) and the gear (8), and a coupling 2 (11) is meshed on the side of each spring 1 (9) away from the gear (8), and the coupling 2 (11) is fixedly connected to the shaft rod (7) at the corresponding position.

3. The multi-directionally supported foundation pit support pile according to claim 1, characterized in that: The elastic transmission structure comprises a positioning ring (16), the positioning ring (16) being fixedly connected to the outer side wall of the rotating rod (5), the outer side wall of the rotating rod (5) being rotatably connected to a belt (13), a second spring (15) being fixedly connected between the positioning ring (16) and the belt (13), a small belt pulley (12) being sleeved on the outer side wall of the shaft rod (7) close to the inner wall of the slide groove (3), and a belt (13) being sleeved between the small belt pulley (12) and the large belt pulley (14).

4. The multi-directionally supported foundation pit support pile according to claim 3, characterized in that: One end of the shaft rod (7) away from the small pulley (12) is fixedly connected to a motor (17), and the motor (17) is fixedly connected to the inner side wall of the slide groove (3).

5. The multi-directionally supported foundation pit support pile according to claim 1, characterized in that: The water seepage structure comprises a water seepage groove (18), the water seepage groove (18) being arranged inside the lower end of the cone rod (2) and being connected to the water pumping pipe (20), and the lower end of the cone rod (2) being provided with a plurality of water seepage ports (19) being connected to the water seepage groove (18).

6. The multi-directionally supported foundation pit support pile according to claim 1, characterized in that: The elastic valve structure comprises a sliding groove (21), wherein the sliding groove (21) is formed on the inner side wall of the water pumping pipe (20), and the upper and lower end notches of the sliding groove (21) are both provided with empty grooves (22), and the upper empty groove (22) is communicated with the sliding groove (3), and the upper notch of the upper empty groove (22) is fixedly connected to a drainage cover (23), the lower end of the drainage cover (23) is fixedly connected to a spring three (24), and the lower end of the spring three (24) is fixedly connected to a piston (25) slidably connected to the sliding groove (21).

7. The multi-directionally supported foundation pit support pile according to claim 1, characterized in that: The connection structure comprises two connection blocks (26), the connection blocks (26) being symmetrically arranged at two ends of the rotating rod (5), and each of the connection blocks (26) being provided with a limiting groove (28) on a side away from the rotating rod (5), the inner wall of the limiting groove (28) being slidably connected to a threaded rod (30), and a spring four (29) being fixedly connected between one end of the threaded rod (30) and the inner wall of the limiting groove (28).

8. The multi-directionally supported foundation pit support pile according to claim 7, characterized in that: A protective sleeve (31) is fixedly connected to one end of the connecting block (26) away from the rotating rod (5); a positioning block (33) is provided on one side of the threaded rod (30) away from the connecting block (26); internal threaded barrels (32) are symmetrically provided on both sides of the positioning block (33); each internal threaded barrel (32) can be threadedly connected to the threaded rod (30) at a corresponding position; one end of each connecting block (26) is fixedly connected to a protective sleeve (31) that can be movably connected to the internal threaded barrel (32); and connecting holes (27) are formed through the side surfaces of the positioning block (33) and the connecting block (26).

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