A grouting hole cleaning device and a cleaning method

Abstract

The application discloses a grouting hole cleaning device and a cleaning method, and belongs to the technical field of grouting hole cleaning. The grouting hole cleaning device comprises a cleaning pipe, the cleaning pipe is in a cylindrical structure, one end of the cleaning pipe is an open end and is used for being connected with a water source, the other end of the cleaning pipe is a closed end, a plurality of water outlets are arranged on the side wall of the cleaning pipe, a water wheel assembly is installed on the closed end of the cleaning pipe, the water wheel assembly can be started under the impact of water flow flowing out of the water outlets, a spiral cleaning assembly comprises a rotating shaft and a spiral blade, one end of the rotating shaft is rotationally connected with the closed end, the water wheel assembly can drive the rotating shaft to rotate, the spiral blade is arranged around the rotating shaft and is fixed on the outer side wall of the rotating shaft, and the end portion of the spiral blade, which is away from the water wheel assembly, is flush with the end portion of the rotating shaft, which is away from the water wheel assembly. The spiral blade is driven to rotate by using water flow as power, and residues in the hole are collected through the rotation of the spiral blade, so that the cleaning of the grouting hole and the collection of the residues are completed at the same time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grouting hole cleaning, in particular to a grouting hole cleaning device and a cleaning method. BACKGROUND

[0002] After the drilling of the grouting hole is completed, there are a lot of drillings in the hole, and when the grouting is formally carried out, the inside of the grouting hole needs to be cleaned to remove the drillings, and the sediment in the hole and the cracks in the hole need to be cleaned so that water or slurry can smoothly enter the cracks during the water pressure test and grouting. In conventional cleaning, most of the drillings in the hole are removed by using air and water, and then the sediment in the hole is further cleaned with clean water. When the grouting hole is formed by drilling from top to bottom, the drillings and sediment in the hole are not easy to remove due to the action of gravity, and more time is needed for cleaning, and the cleaning effect is not good. SUMMARY

[0003] The present application provides a grouting hole cleaning device and a cleaning method, which uses the rotation of the spiral blade driven by the water source for cleaning to collect the drillings and sediment in the grouting hole, and completes the cleaning of the grouting hole and the removal of the debris in the hole.

[0004] The present application is implemented by the following technical solutions:

[0005] A grouting hole cleaning device, comprising: a cleaning pipe, the cleaning pipe is in a cylindrical structure, one end is an open end for connecting a water source, the other end is a closed end, and a plurality of water outlets are arranged on the side wall of the cleaning pipe; a waterwheel assembly, the waterwheel assembly is installed on the closed end of the cleaning pipe and can be started under the impact of water flowing out of the water outlet; a spiral cleaning assembly, the spiral cleaning assembly comprises a rotating shaft and a spiral blade, one end of the rotating shaft is rotatably connected to the closed end, the waterwheel assembly can drive the rotating shaft to rotate, the spiral blade is arranged around the rotating shaft and fixed on the outer side wall of the rotating shaft, and the end of the spiral blade away from the waterwheel assembly is flush with the end of the rotating shaft away from the waterwheel assembly.

[0006] In the above technical solution, the cleaning pipe serves as the main component for storing water, and is connected to a water source. The water flows out of the water outlet to clean the grouting hole. The waterwheel assembly arranged on the closed end of the cleaning pipe can be started under the impact of the water flow, thereby driving the rotating shaft to rotate. The spiral blade arranged on the rotating shaft also rotates. With the rotation of the spiral blade, the residue in the hole can be transported onto the spiral blade, thereby completing the collection of the residue. The spiral blade and the residue can be smoothly removed by removing the cleaning pipe. For the grouting hole formed by drilling from top to bottom, the grouting hole can also be cleaned smoothly.

[0007] Further, the waterwheel assembly comprises a protective cover, a first waterwheel, a first rotating shaft, a first gear and a second gear, the protective cover is sleeved on the end portion of the closed end, at least one water outlet hole is located in the protective cover, the end portion of the rotating shaft rotatably connected with the closed end is located in the protective cover, and the spiral blade is located outside the protective cover; the first rotating shaft is rotatably connected in the protective cover, the axis of the first rotating shaft is arranged in parallel with the axis of the cleaning pipe, the first waterwheel is fixedly sleeved outside the first rotating shaft, the water outlet hole is arranged in correspondence with the blade of the first waterwheel, and the water flow flowing out of the water outlet hole can drive the first waterwheel to rotate; the first gear is fixedly sleeved outside the first rotating shaft, the second gear is fixedly sleeved outside the rotating shaft, and the first gear is engaged with the second gear; the water flow impinges on the first waterwheel, the first waterwheel rotates under the impact of the water flow, the first gear coaxially arranged with the first waterwheel rotates to drive the second gear to rotate, so that the rotating shaft starts to rotate, the spiral blade starts to rotate to achieve the purpose of collecting the residues in the grouting hole, and meanwhile, the normal cleaning of the grouting hole by the water flow is not affected.

[0008] Further, the spiral blade further comprises a flat section, the flat section is fixed on the side wall of the rotating shaft, and one side edge of the flat section is fixedly connected with the end portion of the spiral blade away from the waterwheel assembly; when the end portion of the spiral blade is flush with the end portion of the grouting hole, the flat section can tightly adhere to the surface of the grouting hole to fully collect the residues at the bottom of the grouting hole.

[0009] Further, the diameter of the spiral blade is greater than or equal to the diameter of the protective cover, so that the spiral blade can conveniently collect the residues.

[0010] Further, a plurality of water drainage holes are arranged on the surfaces of the spiral blade and the flat section, so that the water flow is conveniently drained, and the cleaning pipe is prevented from being subjected to a large pressure.

[0011] Further, a plurality of water drainage holes are arranged on the side wall of the protective cover away from the cleaning pipe.

[0012] Further, the waterwheel assembly further comprises a second rotating shaft, a second waterwheel and a soft cam; the second rotating shaft is arranged in parallel with the first rotating shaft, one end of the second rotating shaft is rotatably connected with the inner side wall of the protective cover, the other end of the second rotating shaft penetrates out of the protective cover, the second waterwheel is located inside the protective cover and is fixed outside the second rotating shaft, and the soft cam is fixedly connected at the end of the second rotating shaft away from the protective cover; the protective cover has at least two water outlet holes, one of which is arranged in correspondence with the first waterwheel, and the other of which is arranged in correspondence with the second waterwheel; the second waterwheel can also rotate under the impact of the water flow, the soft cam can rotate with the rotation of the second waterwheel, and when the soft cam rotates, it can hit the rotating shaft to make the rotating shaft vibrate, so that the residues cannot block the water drainage holes on the spiral blade and the flat section, and meanwhile, the pressure of the soft cam on the rotating shaft is small, so that the rotating shaft is not damaged.

[0013] Further, the soft cam is in the shape of a water drop, the maximum distance between the edge of the soft cam and the second rotating shaft is greater than the distance between the second rotating shaft and the rotating shaft, and the minimum distance between the edge of the soft cam and the second rotating shaft is less than the distance between the second rotating shaft and the rotating shaft.

[0014] Further, the straight-line distance between the soft cam and the protective cover is less than the straight-line distance between the spiral blade and the protective cover, and the soft cam is above the spiral blade and does not affect the normal rotation of the spiral blade.

[0015]

[0016] S1, install the open end of the cleaning pipe on the external water pipe;

[0017] S2, insert the cleaning pipe into the grouting hole, open the switch of the external water pipe, and start cleaning;

[0018] S3, insert the cleaning pipe towards the bottom of the grouting hole until the end of the spiral blade abuts against the end of the grouting hole;

[0019] S4, remove the cleaning pipe from the grouting hole, and process the debris on the spiral blade, and the cleaning is completed.

[0020] Compared with the prior art, the present application has the following advantages and beneficial effects:

[0021] The present application uses the cleaning water flow as a power source, does not need external power, is convenient to use, and uses the waterwheel assembly to drive the spiral blade to rotate, uses the structure of the spiral blade, collects the residues in the grouting hole when the spiral blade rotates, and then removes the residues together with the cleaning pipe to complete the cleaning of the grouting hole. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the example embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor. In the drawings:

[0023] Figure 1 is the overall structure diagram of the embodiment of the present application;

[0024] Figure 2 is the first waterwheel structure diagram of the embodiment of the present application;

[0025] Figure 3 is the A-A sectional view of the embodiment of the present application; ​

[0026] Figure 4 Figure 2 is a cross-sectional view taken along line B-B of Figure 1.

[0027] 1 - cleaning tube, 101 - open end, 102 - closed end, 103 - water outlet hole, 201 - protective cover, 202 - first water wheel, 203 - first rotating shaft, 204 - first gear, 205 - second gear, 206 - water leakage hole, 207 - second rotating shaft, 208 - second water wheel, 209 - soft cam, 301 - rotating shaft, 302 - spiral blade, 4 - straight section, 5 - water drainage hole. DETAILED DESCRIPTION

[0028] In order to make the objects, technical solutions and advantages of the present application clearer, further specific description will be given to the present application in combination with embodiments and drawings, and the schematic embodiments of the present application and the description thereof are only used for explaining the present application, and not as a limitation to the present application.

[0029] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one ordinarily skilled in the art that the present application can be practiced without these specific details. In other instances, well-known structures, circuits, materials or processes have not been described in detail in order to avoid obscuring the present application.

[0030] Throughout this specification, the recitation "one embodiment," "an embodiment," "one example," or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the application. Therefore, the appearance of the phrases "in one embodiment," "in an embodiment," "in one example," or "in an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics can be combined in any suitable

[0031] In the description of the present application, the terms "front," "back," "left," "right," "top," "bottom," "vertical," "horizontal," "high," "low," "inner," "outer," and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the scope of protection of the present application.

[0032] EMBODIMENT

[0033] After the drilling of the grouting hole is completed, no matter what grouting method is adopted, each grouting hole needs to be cleaned before grouting. When the drilling method from top to bottom is adopted, the conventional water and flushing method is adopted to clean the grouting hole, and the residues in the hole will deposit at the bottom of the hole under the action of gravity and are not easy to be discharged, which needs to spend more time to clean the residues at the bottom of the hole. In order to clean the inside of the grouting hole and clean the residues in the hole at the same time, the embodiment provides a grouting hole cleaning device. The cleaning device provided by the embodiment can successfully clean the grouting hole and discharge the residues in the hole.

[0034] The grouting hole cleaning device provided by the embodiment comprises a cleaning pipe 1, a waterwheel assembly, and a spiral cleaning assembly. Figures 1 to 4 As shown in the figure, the cleaning pipe 1 is in a cylindrical structure, one end is an open end 101 for connecting a water source, the other end is a closed end 102, and a plurality of water outlets 103 are arranged on the side wall of the cleaning pipe 1. The waterwheel assembly is installed at the closed end 102 of the cleaning pipe 1 and can be started under the impact of the water flow flowing out of the water outlet 103. The spiral cleaning assembly comprises a rotating shaft 301 and a spiral blade 302. One end of the rotating shaft 301 is rotatably connected to the closed end 102, and the waterwheel assembly can drive the rotating shaft 301 to rotate. The spiral blade 302 is arranged around the rotating shaft 301, and the inner side of the spiral blade 302 is fixed perpendicularly on the outer side wall of the rotating shaft 301. The end of the spiral blade 302 away from the waterwheel assembly is flush with the end of the rotating shaft 301 away from the waterwheel assembly.

[0035] In actual use, the open end 101 of the cleaning pipe 1 is connected with an external water pipe. After the water source enters the cleaning pipe 1, the water flows out of the water outlet 103 on the side wall of the cleaning pipe 1 to flush the inside wall of the grouting hole. It should be noted that the water pressure of the external water source needs to be set high so that the water flowing out of the water outlet has a certain pressure to clean the grouting hole. Usually, the section of the external water pipe connected with the cleaning pipe 1 should be a hard pipe to facilitate the staff to hold the pipe to control the movement of the cleaning pipe 1 in the grouting hole. Since the water flowing out of the water outlet 103 has a certain pressure, the waterwheel assembly corresponding to one of the water outlets 103 can also rotate under the impact of the water flow. The rotation of the waterwheel assembly can drive the rotating shaft 301 to rotate, thereby completing the rotation of the spiral blade 302. With the rotation of the spiral blade 302, the residues in the hole are collected and transported by the spiral blade 302. When the cleaning pipe 1 is taken out, the spiral blade 302 and the cleaning pipe 1 are taken out together, and the residues on the spiral blade 302 can be cleaned.

[0036] The grouting hole cleaning device provided by the embodiment can clean the inside of the grouting hole and collect the residues in the hole at the same time, without additional cleaning steps. In particular, for the grouting hole drilled from top to bottom, the spiral blade 302 can smoothly collect the residues. The device directly uses water flow as a power source, without using an external power source.

[0037] The specific structure of the waterwheel assembly is shown in Figure 3 and Figure 4 The waterwheel assembly includes a protective cover 201, a first waterwheel 202, a first rotating shaft 203, a first gear 204, and a second gear 205. The protective cover 201 is sleeved on the end of the closed end 102, and at least one water outlet hole 103 is located in the protective cover 201. The end of the rotating shaft 301 connected to the closed end 102 is located in the protective cover 201, and the spiral blade 302 is located outside the protective cover 201. The first rotating shaft 203 is rotatably connected in the protective cover 201, and the axis of the first rotating shaft 203 is arranged in parallel with the axis of the cleaning pipe 1. The first waterwheel 202 is fixedly sleeved outside the first rotating shaft 203, and the water outlet hole 103 is arranged corresponding to the blade of the first waterwheel 202. The water flow from the water outlet hole 103 can drive the first waterwheel 202 to rotate. The first gear 204 is fixedly sleeved outside the first rotating shaft 203, and the second gear 205 is fixedly sleeved outside the rotating shaft 301. The first gear 204 is engaged with the second gear 205. During installation, attention should be paid to the rotation direction of the first waterwheel 202 and the rotation direction of the spiral blade 302. It is necessary to ensure that the spiral blade 302 can collect residues at the bottom of the grouting hole during rotation. Except for the spiral blade 302 and the rotating shaft 301, other components are arranged inside the protective cover 201, which can protect the integrity of each component and avoid residues from being stuck in the first waterwheel 202 or the first gear 204 or the second gear 205, causing problems in the engagement of the overall structure. It should also be noted that generally only one water outlet hole 103 or the water flow in the water outlet holes 103 in the same orientation drives the first waterwheel 202. After the first waterwheel 202 rotates, the first rotating shaft 203 also rotates, the first gear 204 rotates driven by the first rotating shaft 203, the second gear 205 engaged with the first gear 204 rotates, the rotating shaft 301 rotates driven by the second gear 205, and the spiral blade 302 fixed on the rotating shaft 301 also rotates, achieving the purpose of collecting residues. In actual operation, in order to prevent residues on the spiral blade 302 from falling off the edge of the spiral blade 302, a protective cylinder can be arranged on the outer edge of the spiral blade 302 to prevent residues from falling off.

[0038] In order to facilitate the spiral blade 302 to collect the residues in the grouting hole, the spiral blade 302 further comprises a flat section 4 fixed on the side wall of the rotating shaft 301, and one side edge of the flat section 4 is fixedly connected with the end of the spiral blade 302 away from the waterwheel assembly; when the end of the spiral blade 302 is flush with the end of the grouting hole, the flat section 4 can tightly adhere to the surface of the grouting hole to fully collect the residues at the bottom of the grouting hole.

[0039] In the embodiment, the diameter of the spiral blade 302 is greater than or equal to the diameter of the protective cover 201, facilitating the spiral blade 302 to collect residues; if the spiral blade 302 is too small, residues are likely to be missed; the side wall of the protective cover 201 away from the cleaning pipe 1 is provided with a plurality of water leakage holes 206, and the water flow impacting the first waterwheel 202 is finally discharged through the water leakage holes 206; the surfaces of the spiral blade 302 and the flat section 4 are both provided with a plurality of water drainage holes 5, facilitating the drainage of the water flow; the water flow discharged from the water leakage holes 206 of the protective cover 201 can also leak down through the water drainage holes 5, avoiding the accumulation of too much water flow on the spiral blade 302 and placing the cleaning pipe 1 under great pressure; if a protective cylinder is provided outside the spiral blade 302, the side wall of the protective cylinder can also be provided with water drainage holes 5, facilitating the drainage of the water flow.

[0040] The waterwheel assembly further comprises a second rotating shaft 207, a second waterwheel 208 and a soft cam 209; the second rotating shaft 207 is arranged in parallel with the first rotating shaft 203, one end of the second rotating shaft 207 is rotatably connected with the inner side wall of the protective cover 201, the other end of the second rotating shaft 207 penetrates out of the protective cover 201, the second waterwheel 208 is located inside the protective cover 201 and is fixedly sleeved outside the second rotating shaft 207, and the soft cam 209 is fixedly connected with the end of the second rotating shaft 207 away from the protective cover 201; the protective cover 201 has at least two water outlets 103, one of which is arranged corresponding to the first waterwheel 202, and the other of which is arranged corresponding to the second waterwheel 208; the second waterwheel 208 can also rotate under the impact of the water flow, the soft cam 209 can rotate with the rotation of the second waterwheel 208, the soft cam 209 is in the shape of a water droplet, the maximum distance between the edge of the soft cam 209 and the second rotating shaft 207 is greater than the distance between the second rotating shaft 207 and the rotating shaft 301, and the minimum distance between the edge of the soft cam 209 and the second rotating shaft 207 is less than the distance between the second rotating shaft 207 and the rotating shaft 301; the straight-line distance between the soft cam 209 and the protective cover 201 is less than the straight-line distance between the spiral blade 302 and the protective cover 201, and the soft cam 209 is located above the spiral blade 302 and does not affect the normal rotation of the spiral blade 302.

[0041] The size of the soft cam 209 is limited, the soft cam 209 is longer on one side and shorter on the other side, the long part can hit the rotating shaft 301, so that the spiral blade 302 vibrates as a whole, which can avoid the residues from blocking the hydrophobic holes 5 on the spiral blade 302 and the straight section 4 to a certain extent. The soft cam 209 is located above the spiral blade 302 and does not affect the normal rotation of the spiral blade 302. At the same time, the soft cam 209 is made of soft silica gel. After hitting the rotating shaft 301, the second rotating shaft 207 will continue to rotate, and then the soft cam 209 will deform until the long side of the soft cam 209 completely passes the position of the rotating shaft 301.

[0042] When the grouting cleaning device provided by the embodiment is used, the specific cleaning steps are as follows:

[0043] S1, install the open end 101 of the cleaning pipe 1 on the external water pipe, and the external water pipe is detachably connected with the open end 101. The detachable connection means includes but is not limited to hoop connection, threaded connection and the like. The external water pipe includes a hose section and a hard pipe section. The open end 101 is directly connected with the hard pipe section, which facilitates the operator to hold the hard pipe section to operate in the grouting hole;

[0044] S2, insert the cleaning pipe 1 into the grouting hole, and open the switch of the external water pipe to start cleaning. The water pressure in the external water pipe needs to be set relatively high to ensure that the water flow from the water outlet hole 103 of the cleaning pipe 1 can smoothly drive the first waterwheel 202 to rotate. The rotation of the first waterwheel 202 will eventually drive the spiral blade 302 to rotate. The operator holds the hard pipe section and slowly puts the cleaning pipe 1 into the grouting hole, and can slightly rotate the hard section at the same time, so that the cleaning pipe 1 can comprehensively clean the inside of the grouting hole;

[0045] S3, put the cleaning pipe 1 towards the bottom of the grouting hole until the end of the spiral blade 302 abuts against the end of the grouting hole. After abutting, stop rotating the hard section and wait for the spiral blade 302 to rotate to collect the residues at the bottom of the grouting hole;

[0046] S4, after waiting for the spiral blade 302 to collect the residues at the bottom of the grouting hole, take out the cleaning pipe 1 from the grouting hole, and handle the debris on the spiral blade 302. The cleaning is completed.

[0047] For the grouting hole with more internal residues, the cleaning can be performed multiple times, and the water flow can be stopped when the cleaning pipe 1 is taken out of the grouting hole to avoid the soft cam 209 hitting the rotating shaft 301, which causes some residues to fall back into the bottom of the grouting hole.

[0048] The above detailed description of the specific embodiments of the present application has been given to understand the purpose, technical solutions and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A grouting hole cleaning device, characterized in that, include: The cleaning pipe (1) has a cylindrical structure, with one end being an open end (101) for connecting to a water source and the other end being a closed end (102). Multiple water outlet holes (103) are provided on the side wall of the cleaning pipe (1). A waterwheel assembly is installed at the closed end (102) of the cleaning pipe (1), and the waterwheel assembly can be activated by the impact of the water flow flowing out of the outlet (103); A spiral cleaning assembly includes a rotating shaft (301) and a spiral blade (302). One end of the rotating shaft (301) is rotatably connected to the closed end (102). The waterwheel assembly can drive the rotating shaft (301) to rotate. The spiral blade (302) is arranged around the rotating shaft (301) and fixed on the outer wall of the rotating shaft (301). The end of the spiral blade (302) away from the waterwheel assembly is flush with the end of the rotating shaft (301) away from the waterwheel assembly. The waterwheel assembly includes a protective cover (201), a first waterwheel (202), a first rotating shaft (203), a first gear (204), and a second gear (205). The protective cover (201) is fitted onto the end of the closed end (102), and at least one water outlet (103) is located in the protective cover (201). The end of the rotating shaft (301) that is rotatably connected to the closed end (102) is located in the protective cover (201), and the spiral blade (302) is located outside the protective cover (201). The first rotating shaft (203) is rotatably connected in the protective cover (201). The axis of the first rotating shaft (203) is parallel to the axis of the cleaning pipe (1). The first waterwheel (202) is fixedly sleeved on the outside of the first rotating shaft (203). The water outlet (103) is correspondingly arranged with the blades of the first waterwheel (202). The water flowing out from the water outlet (103) can drive the first waterwheel (202) to rotate. The first gear (204) is fixedly sleeved on the outside of the first rotating shaft (203), and the second gear (205) is fixedly sleeved on the outside of the rotating shaft (301). The first gear (204) and the second gear (205) mesh. The waterwheel assembly also includes a second rotating shaft (207), a second waterwheel (208), and a soft cam (209). The second rotating shaft (207) is arranged parallel to the first rotating shaft (203). One end of the second rotating shaft (207) is rotatably connected to the inner wall of the protective cover (201), and the other end extends out of the protective cover (201). The second waterwheel (208) is located inside the protective cover (201) and fixed outside the second rotating shaft (207). The soft cam (209) is fixedly connected to the end of the second rotating shaft (207) away from the protective cover (201). The protective cover (201) has at least two water outlets (103), one of which is corresponding to the first water car (202) and the other is corresponding to the second water car (208).

2. The grouting hole cleaning equipment according to claim 1, characterized in that, The spiral blade (302) also includes a straight section (4), which is fixed on the side wall of the rotating shaft (301), and one side of the straight section (4) is fixedly connected to the end of the spiral blade (302) away from the waterwheel assembly.

3. The grouting hole cleaning equipment according to claim 2, characterized in that, The diameter of the spiral blade (302) is greater than or equal to the diameter of the protective cover (201).

4. The grouting hole cleaning equipment according to claim 2, characterized in that, Both the spiral blade (302) and the straight section (4) have multiple hydrophobic holes (5) on their surfaces.

5. The grouting hole cleaning equipment according to claim 1, characterized in that, The protective cover (201) has multiple water leakage holes (206) on its side wall away from the cleaning pipe (1).

6. The grouting hole cleaning equipment according to claim 1, characterized in that, The soft cam (209) is teardrop-shaped. The maximum distance between the edge of the soft cam (209) and the second rotating shaft (207) is greater than the distance between the second rotating shaft (207) and the rotating shaft (301). The minimum distance between the edge of the soft cam (209) and the second rotating shaft (207) is less than the distance between the second rotating shaft (207) and the rotating shaft (301).

7. The grouting hole cleaning equipment according to claim 1, characterized in that, The straight-line distance between the soft cam (209) and the protective cover (201) is less than the straight-line distance between the spiral blade (302) and the protective cover (201).

8. A method for cleaning grouting holes, characterized in that, Using the grouting hole cleaning equipment according to any one of claims 1-7, the specific cleaning steps are as follows: S1. Install the open end (101) of the cleaning pipe (1) onto the external water pipe; S2. Insert the cleaning pipe (1) into the grouting hole, turn on the switch of the external water pipe, and start cleaning; S3. Insert the cleaning tube (1) toward the bottom of the grouting hole until the end of the spiral blade (302) abuts against the end of the grouting hole; S4. Take the cleaning pipe (1) out of the grouting hole, remove the debris on the spiral blade (302), and the cleaning is completed.

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