Bridge pile foundation hole cleaning device suitable for karst area

Abstract

The utility model relates to the technical field of pile foundation hole cleaning devices, in particular to a bridge pile foundation hole cleaning device suitable for a karst area, which comprises a fixing frame, a traction structure arranged on the fixing frame, and a cleaning structure connected with the traction structure and arranged in the middle of the lower portion of the fixing frame in a lifting mode. The fixing frame is adjusted to be aligned with the middle position of the pile foundation hole, the cleaning structure can be lowered to the middle position of the bottom of the pile foundation hole by operating the traction structure, cleaning efficiency can be improved, and the cleaning structure is not prone to colliding with the hole wall when entering and exiting the pile foundation hole. The cleaning structure comprises a flushing channel, a water absorbing channel, a water supplementing channel and a rotary stirring piece, the upper portion of the rotary stirring piece is rotatably arranged in the flushing channel, the flushing channel has the functions of flushing and driving stirring at the same time, and the water absorbing channel and the water supplementing channel are arranged on the two sides of the flushing channel respectively; and the water supplementing channel can wash sediments on one side to the other side, so that the cleaning time is saved, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundation hole cleaning devices, in particular to a bridge pile foundation hole cleaning device suitable for karst areas. Background Art

[0002] With the rapid development of my country's transportation construction, more and more bridges are being built. Pile foundations are the basic support of bridges. In pile foundation construction, the pile foundation hole cleaning process is an extremely important link. The hole cleaning quality has a significant impact on the quality of the pile foundation. my country's geological form is complex. Some highway and railway construction will cross the covered karst area, especially in areas with strong karst development. The area is manifested in caves, dissolution cracks, and complex stratum structure. Considering that the karst area may experience hole collapse, slurry leakage, drilling rig tilt collapse, and sudden concrete sinking, it is necessary to minimize the disturbance of large equipment. However, some pile foundations have deep holes. The traditional method of using a catheter to clean the hole takes a long time to clean the hole, affecting the subsequent construction progress.

[0003] The patent document CN210033335U, which was announced later, discloses a subway pile foundation hole cleaning device, including a subway pile foundation, an air-slurry mixer is arranged inside the subway pile foundation, the inner wall of the air-slurry mixer is fixedly connected to a high-pressure air duct, one end of the high-pressure air duct is fixedly connected to an air compressor, the inner wall of the air-slurry mixer is fixedly connected to a high-pressure water pipe on the side away from the high-pressure air duct, one end of the high-pressure water pipe is fixedly connected to a high-pressure water pump; when the mud enters the venturi tube, the venturi tube increases the suction speed of the mud, and a stirring shell is arranged at the bottom end of the conduit in the mixer, a blade seat is arranged inside the stirring shell, the blade seat supports the rotating shaft, and blades are arranged on the rotating shaft. When suction is performed, the mud drives the blades to rotate, so that the blades stir the mud and the mud is evenly dispersed, so that the mud can smoothly enter the conduit in the mixer, thereby achieving the purpose of improving the suction efficiency.

[0004] However, when cleaning deep pile foundation holes, it is difficult to ensure that the above device is placed in the middle of the bottom of the pile foundation hole by manual operation, resulting in reduced suction efficiency. In addition, the above device is prone to collision with the hole wall when entering and exiting the pile foundation hole, which can easily cause damage to the device. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a bridge pile foundation hole cleaning device suitable for karst areas, which can improve the hole cleaning efficiency of pile foundations in karst areas, especially improve the cleaning efficiency, and is not easy to collide with the hole wall when entering and exiting the pile foundation hole.

[0006] In order to solve the above technical problems, the utility model provides a bridge pile foundation hole cleaning device suitable for karst areas, comprising: a fixed frame, on which a traction structure is provided; a cleaning structure, which is connected to the traction structure, and the cleaning structure is liftably arranged at a middle position below the fixed frame, the cleaning structure comprises a flushing channel, a water suction channel and a rotating stirring member, the flushing channel is used to communicate with an external water supply pipe, the water suction channel is used to communicate with an external water pumping pipe, and the upper part of the rotating stirring member is rotatably arranged in the flushing channel, and when water flows through the upper part of the rotating stirring member in the flushing channel, the rotating stirring member rotates along the central axis of the flushing channel.

[0007] Preferably, in the above technical solution, the cleaning structure also includes a water replenishment channel, which is used to communicate with an external water supply pipe, the water replenishment channel is arranged on one side of the flushing channel, and the water absorption channel is arranged on the other side of the flushing channel, the outlet of the water replenishment channel is arranged above the outlet of the flushing channel, and the inlet of the water absorption channel is arranged below the outlet of the flushing channel.

[0008] Preferably, in the above technical solution, the cleaning structure also includes a protective ring, which is arranged around the lower part of the rotating stirring element, and the protective ring is fixedly connected to the outer wall of the flushing channel. The inlet of the water absorption channel faces the outside of the protective ring, and the inlet of the water absorption channel is arranged above the bottom of the protective ring.

[0009] Preferably, in the above technical solution, the bottom periphery of the protective ring is provided with more than three anti-skid protrusions in a circumferential array, and the lower part of the rotating stirring element is arranged above the bottom plane of the anti-skid protrusions.

[0010] Preferably, in the above technical solution, the traction structure includes a winch, a pulley block and a pull rope, the winch is installed on one side of the fixed frame, the pulley block is installed at the middle position of the top of the fixed frame, the winch and the pulley block are connected by the pull rope, and the cleaning structure is connected to the pulley block.

[0011] Preferably, in the above technical solution, the cleaning structure further comprises a plurality of groups of hanging ears and connecting pieces, the hanging ears are arranged on the top of the cleaning structure, and the hanging ears are detachably connected to the pulley block via the connecting pieces.

[0012] Preferably, in the above technical solution, the drum of the capstan is provided with a plurality of through holes in a circumferential array, the base of the capstan is provided with screw holes matching the shape and size of the through holes, and a rotating handle is also provided at one end of the capstan.

[0013] Preferably, the above technical solution further comprises a driving motor, the rotating shaft of the driving motor is connected to the rotating shaft of the winch via a transmission member, and the driving motor is used to drive the winch to rotate forward or reverse.

[0014] Preferably, in the above technical solution, the driving motor is installed below the capstan, the transmission member includes a belt and a pulley, the driving motor and the rotating shaft of the capstan are respectively provided with the pulleys, and the pulleys are connected by the belt.

[0015] Preferably, the above technical solution further comprises a water pipe bracket, wherein the water pipe bracket is arranged on one side of the fixing frame, and more than three horizontal rotating columns are arranged on the water pipe bracket, and a partition rotating column is arranged between two adjacent horizontal rotating columns.

[0016] Compared with the existing technology, the utility model has the following beneficial effects:

[0017] 1. The cleaning structure of the utility model adopts a combination of a flushing channel, a water absorption channel and a rotating stirring element. The rotating stirring element rotates to stir the sediment to cover a larger stirring area without causing a large impact on the surrounding environment. With the entry of water flow, the sediment at the bottom of the pile is driven to mix with water and then be sucked out, which can greatly improve the slag cleaning efficiency, especially improve the cleaning efficiency of the pile bottom, and is particularly suitable for pile foundation hole cleaning work in karst areas.

[0018] 2. The utility model has a traction structure on the fixing frame, and the cleaning structure is connected to the traction structure. The cleaning structure can be lifted and lowered at the middle position below the fixing frame. When cleaning a deep pile foundation hole, the fixing frame is adjusted to align with the middle position of the pile foundation hole, and the traction structure can be operated to lower the cleaning structure to the middle position of the bottom of the pile foundation hole, which helps to improve the cleaning efficiency and is not easy to collide with the hole wall when entering and exiting the pile foundation hole.

[0019] 3. The flushing channel of the utility model mainly plays the role of flushing and driving the rotating stirring member to rotate. The rotating stirring member can fully stir and mix the solid and liquid in the pile foundation hole, further improving the suction efficiency of the water absorption channel. By arranging the water absorption channel and the water replenishment channel on both sides of the flushing channel respectively, the water replenishment channel can flush the mixed liquid on one side to the other side, which helps to save cleaning time and improve the cleaning effect.

[0020] 4. The overall center of gravity of the cleaning structure of the utility model is close to the lower stirring impeller. A protective ring is provided on the outside of the stirring impeller to provide side protection for the blades of the stirring impeller. In addition, three conical anti-slip bumps are arranged in a circular array on the bottom periphery of the protective ring, which further improves the overall stability of the cleaning structure and avoids contact between the bottom of the stirring impeller and the bottom of the pile foundation hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a first-view structural schematic diagram of the utility model of a bridge pile foundation hole cleaning device suitable for karst areas.

[0022] Figure 2 It is a second perspective structural schematic diagram of the bridge pile foundation hole cleaning device suitable for karst areas of the utility model.

[0023] Figure 3 It is a third perspective structural schematic diagram of the utility model of the bridge pile foundation hole cleaning device suitable for karst areas.

[0024] Figure 4 It is a structural schematic diagram of the cleaning structure of the utility model.

[0025] Figure 5 It is a structural schematic diagram of the rotating stirring element of the utility model.

[0026] Among them, 1-fixed frame, 2-traction structure, 21-winch, 211-through hole, 212-screw hole, 213-rotating handle, 22-pulley block, 221-fixed pulley, 222-movable pulley, 23-pull rope, 3-cleaning structure, 31-flushing channel, 32-water absorption channel, 33-water replenishment channel, 34-rotating stirring element, 341-rotating impeller, 342-rotating shaft, 343-stirring impeller, 35-protective ring, 351-anti-slip bump, 36-hanging ear, 37-connecting piece, 4-driving motor, 41-transmission element, 411-belt, 412-pulley, 5-water pipe bracket, 51-horizontal rotating column, 52-partition rotating column. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "thick", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of the embodiments of the present invention based on its overall structure.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment discloses a bridge pile foundation hole cleaning device suitable for karst areas, including a fixed frame 1, a traction structure 2, a cleaning structure 3, a drive motor 4 and a water pipe bracket 5, the traction structure 2 is arranged on the fixed frame 1, the cleaning structure 3 is connected to the traction structure 2, and the cleaning structure 3 is arranged in a liftable manner at the middle position below the fixed frame 1.

[0032] Specifically, the traction structure 2 in this embodiment includes a winch 21, a pulley block 22 and a pull rope 23. The base of the winch 21 is installed on the support rod on the left side of the fixing frame 1. The drum of the winch 21 is provided with a plurality of through holes 211 in a circumferential array. The base of the winch 21 is provided with a screw hole 212 that matches the shape and size of the through hole 211. When the through hole 211 and the screw hole 212 are connected by screws, bolts, pins and other parts, the rotation of the winch 21 can be limited. A rotating handle 213 is also provided at one end of the winch 21, and the rotation of the winch 21 can be manually controlled by rotating the handle 213.

[0033] The fixed pulley 221 of the pulley block 22 is installed at the middle position of the top of the fixed frame 1, and the movable pulley 222 of the pulley block 22 is installed below the fixed pulley 221. The winch 21 is connected to the pulley block 22 through a pull rope 23, wherein one end of the pull rope 23 is wound around the drum wheel of the winch 21, and the other end of the pull rope 23 passes through the fixed pulley 221 and the movable pulley 222 in sequence and is fixedly connected to the bottom end of the fixed pulley 221. The cleaning structure 2 is connected to the bottom end of the movable pulley 222. The pulley block 22 using the above-mentioned connection method can save effort and change the direction of the pulling force, which is convenient for manually operating the winch 21 to control the cleaning structure 3 to enter and exit the pile foundation hole.

[0034] Furthermore, in this embodiment, the drive motor 4 is installed below the capstan 21, and the rotating shaft of the drive motor 4 is connected to the rotating shaft of the capstan 21 through a transmission member 41, and the transmission member 41 includes a belt 411 and a pulley 412. The drive motor 4 and the rotating shaft of the capstan 21 are respectively provided with pulleys 412, and the pulleys 412 are connected by the belt 411. The drive motor 4 is used to drive the capstan 21 to rotate forward or reverse. Especially when cleaning deep pile foundation holes, the drive motor 4 operates the capstan 21 to control the cleaning structure 3 to enter and exit the pile foundation hole, which can shorten the cleaning work time, improve work efficiency, and save human resources.

[0035] like Figure 4 As shown, in this embodiment, the cleaning structure 3 includes a flushing channel 31, a water absorption channel 32, a water replenishing channel 33 and a rotating stirring member 34. When in use, the flushing channel 31 and the water replenishing channel 33 are connected to the external water supply pipe respectively, and the water absorption channel 32 is connected to the external water pumping pipe. The water replenishing channel 33 is arranged on one side of the flushing channel 31, and the water absorption channel 32 is arranged on the other side of the flushing channel 31. The outlet of the water replenishing channel 33 is arranged above the outlet of the flushing channel 31, and the inlet of the water absorption channel 32 is arranged below the outlet of the flushing channel 31. The upper part of the rotating stirring member 34 is rotatably arranged in the flushing channel 31. When water flows through the upper part of the rotating stirring member 34 in the flushing channel 31, the rotating stirring member 34 will rotate along the central axis of the flushing channel 31. The present embodiment is designed with a rotating stirring element to rotate and stir the sediment to cover a larger stirring area without causing a large impact on the surrounding environment. With the entry of water, the sediment at the bottom of the pile is driven to mix with water and then be sucked out, which can greatly improve the efficiency of slag cleaning, especially improve the cleaning efficiency of the pile bottom, and is particularly suitable for pile foundation hole cleaning work in karst areas.

[0036] It can be understood that when cleaning the pile foundation hole, the flushing channel 31 mainly plays the role of flushing and driving the rotating stirring member 34 to rotate. The rotating stirring member 34 can fully stir and mix the solid and liquid in the pile foundation hole, further improving the suction efficiency of the water absorption channel 32. The water absorption channel 32 and the water replenishment channel 33 are respectively arranged on both sides of the flushing channel 31, and the water replenishment channel 33 can flush the mixed liquid on one side to the other side, which helps to save cleaning time and improve the cleaning effect.

[0037] Continue to refer Figure 5 In this embodiment, the rotating stirring member 34 includes a rotating impeller 341, a rotating shaft 342 and a stirring impeller 343. The diameter of the rotating impeller 341 is smaller than the inner diameter of the flushing channel 31. The rotating impeller 341 is fixedly installed on the upper end of the rotating shaft 342, and the stirring impeller 343 is fixedly installed on the lower end of the rotating shaft 342. The rotating shaft 342 is rotatably connected to the inner wall of the flushing channel. The diameter of the stirring impeller 343 is set to be more than three times the outer diameter of the flushing channel 31. The stirring impeller 343 can cover a larger stirring area. When water flows through the rotating impeller 341 in the flushing channel 31, the rotating impeller 341 rotates, and the stirring impeller 343 is driven to rotate by the rotating shaft 342. By pressurizing the water supply pipe of the flushing channel 31, the water flow velocity in the flushing channel 31 can be further increased, thereby increasing the rotation speed of the rotating impeller 341. In addition, the stirring impeller 343 is set as a four-blade open turbine stirring impeller 342, which has the characteristics of high stirring accuracy, wide stirring range, fast stirring speed, etc., has a good mixing effect, can quickly mix the materials evenly, and is suitable for mixing various forms of materials such as liquids, powders and fragments.

[0038] Preferably, the cleaning structure 3 in this embodiment also includes a protective ring 35, which is arranged around the stirring impeller 343 of the rotating stirring member 34, and can provide side protection for the blades of the stirring impeller 343. The protective ring 35 is fixedly connected to the outer wall of the flushing channel 31, and the entrance of the water suction channel 32 faces the outside of the protective ring 35. The entrance of the water suction channel 32 is arranged above the bottom of the protective ring 35, so as to prevent the entrance of the water suction channel from being close to the bottom surface of the pile foundation hole and affecting the cleaning efficiency; the bottom periphery of the protective ring 35 is provided with more than three anti-slip bumps 351 in a circular array, and the anti-slip bumps 351 are set to a cone shape. The stirring impeller 343 of the rotating stirring member 34 is arranged above the bottom plane of the anti-slip bumps 351, which can prevent the bottom of the stirring impeller 343 from touching the bottom of the pile foundation hole.

[0039] Specifically, in this embodiment, the cleaning structure 3 also includes several groups of hanging ears 36 and connecting parts 37. The hanging ears 36 are arranged at the top of the cleaning structure 3. The hanging ears 36 and the bottom end of the movable pulley 222 are detachably connected through the connecting part 37. The connecting part 37 is preferably a steel wire rope, which has a certain strength and hardness, and has the advantages of long service life, wear resistance, and corrosion resistance.

[0040] Furthermore, in this embodiment, the water pipe support 5 is arranged on one side of the fixed frame 1, and more than three horizontal rotating columns 51 are arranged on the water pipe support 5, and a separation rotating column 52 is arranged between two adjacent horizontal rotating columns 51. It can be understood that the water pipe support 5 is arranged above the cleaning structure 3, and the external water supply pipe and the water suction pipe are respectively connected with the flushing channel 31, the water suction channel 32, and the water replenishment channel 33 after passing through the water pipe support 5. The external water supply pipe or the water suction pipe is slidably connected with the outer surface of the horizontal rotating column 51 and the separation rotating column 52, which can reduce the surface friction, play a supporting role, and avoid the external water supply pipe or the water suction pipe from being entangled with each other. In addition, the traction structure 2 and the water pipe support 5 are used in combination to increase the stability of the cleaning structure 3 entering and exiting the pile foundation hole, and effectively avoid the cleaning structure 3 from colliding with the inner wall of the pile foundation hole.

[0041] Thus, the functions of a bridge pile foundation hole cleaning device suitable for karst areas in this embodiment are as follows:

[0042] (1) Fixed-point lifting function

[0043] By arranging a fixing frame, a traction structure and a cleaning structure, and arranging the cleaning structure in a liftable manner at a middle position below the fixing frame, the middle part of the fixing frame is aligned with the middle part of the pile foundation hole when in use, so that the fixed-point lifting function of the cleaning structure can be realized; and when cleaning deep pile foundation holes, the cleaning structure is controlled to enter and exit the pile foundation hole by driving a motor, so that the automatic lifting function can be realized, thereby shortening the cleaning work time and improving work efficiency.

[0044] (2) Efficient stirring function

[0045] By fixing the rotating impeller on the upper end of the rotating shaft, fixing the stirring impeller on the lower end of the rotating shaft, the rotating shaft is rotatably connected to the inner wall of the flushing channel, and the stirring impeller is arranged at the bottom of the cleaning mechanism, the diameter of the stirring impeller can be set to be more than three times the outer diameter of the flushing channel, so that the stirring impeller can cover a larger stirring area when rotating, and has a more efficient stirring and mixing function.

[0046] (3) Water replenishment and cleaning function

[0047] By arranging the flushing channel in the middle of the cleaning structure, and arranging the water absorption channel and the water replenishment channel on both sides of the flushing channel respectively, the water replenishment channel can flush the mixed liquid on one side to the other side, which helps to save cleaning time and improve the cleaning effect.

[0048] (4) Anti-slip function

[0049] By arranging a protective ring on the outside of the impeller, the blades of the impeller can be protected laterally, and three conical anti-slip bumps are arranged in a circular array on the bottom periphery of the protective ring, which further improves the overall stability of the cleaning structure and prevents the bottom of the impeller from touching the bottom of the pile foundation hole.

[0050] (5) Stable lifting function

[0051] By arranging a traction structure, a cleaning structure and a water pipe support for use in conjunction, the stability of the cleaning structure entering and exiting the pile foundation hole can be increased, and collision between the cleaning structure and the inner wall of the pile foundation hole can be effectively avoided.

[0052] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A bridge pile foundation hole cleaning device suitable for karst areas, characterized in that: include: A fixed frame, wherein a traction structure is provided on the fixed frame; A cleaning structure, wherein the cleaning structure is connected to the traction structure, and the cleaning structure can be raised and lowered in the middle position below the fixed frame. The cleaning structure includes a flushing channel, a water suction channel and a rotating stirring member. The flushing channel is used to communicate with an external water supply pipe, and the water suction channel is used to communicate with an external water pumping pipe. The upper part of the rotating stirring member is rotatably arranged in the flushing channel. When water flows through the upper part of the rotating stirring member in the flushing channel, the rotating stirring member rotates along the central axis of the flushing channel.

2. The bridge pile foundation hole cleaning device suitable for karst areas according to claim 1 is characterized in that: The cleaning structure also includes a water replenishment channel, which is used to communicate with an external water supply pipe. The water replenishment channel is arranged on one side of the flushing channel, and the water absorption channel is arranged on the other side of the flushing channel. The outlet of the water replenishment channel is arranged above the outlet of the flushing channel, and the inlet of the water absorption channel is arranged below the outlet of the flushing channel.

3. The bridge pile foundation hole cleaning device suitable for karst areas according to claim 1 is characterized in that: The cleaning structure also includes a protective ring, which is arranged around the lower part of the rotating stirring element, and the protective ring is fixedly connected to the outer wall of the flushing channel. The inlet of the water absorption channel faces the outside of the protective ring, and the inlet of the water absorption channel is arranged above the bottom of the protective ring.

4. The bridge pile foundation hole cleaning device suitable for karst areas according to claim 3 is characterized in that: The bottom periphery of the protective ring is provided with more than three anti-skid protrusions in a circumferential array, and the lower part of the rotating stirring member is arranged above the bottom plane of the anti-skid protrusions.

5. The bridge pile foundation hole cleaning device suitable for karst areas according to claim 1 is characterized in that: The traction structure includes a winch, a pulley block and a pull rope. The winch is installed on one side of the fixed frame, the pulley block is installed at the middle position of the top of the fixed frame, the winch and the pulley block are connected by the pull rope, and the cleaning structure is connected to the pulley block.

6. The bridge pile foundation hole cleaning device suitable for karst areas according to claim 5 is characterized in that: The cleaning structure further comprises a plurality of groups of hanging ears and connecting pieces. The hanging ears are arranged on the top of the cleaning structure, and the hanging ears are detachably connected to the pulley block via the connecting pieces.

7. The bridge pile foundation hole cleaning device suitable for karst areas according to claim 5 is characterized in that: The drum of the capstan is provided with a plurality of through holes in a circumferential array, the base of the capstan is provided with screw holes which are matched with the shape and size of the through holes, and one end of the capstan is also provided with a rotating handle.

8. The bridge pile foundation hole cleaning device suitable for karst areas according to claim 5 is characterized in that: It also includes a driving motor, the rotating shaft of the driving motor is connected to the rotating shaft of the winch through a transmission member, and the driving motor is used to drive the winch to rotate forward or reverse.

9. The bridge pile foundation hole cleaning device suitable for karst areas according to claim 8, characterized in that: The driving motor is installed below the winch, and the transmission member includes a belt and a pulley. The driving motor and the rotating shaft of the winch are respectively provided with the pulleys, and the pulleys are connected by the belt.

10. The bridge pile foundation hole cleaning device suitable for karst areas according to claim 1, characterized in that: It also includes a water pipe bracket, which is arranged on one side of the fixing frame. The water pipe bracket is provided with more than three horizontal rotating columns, and a separation rotating column is provided between two adjacent horizontal rotating columns.

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