Cast-in-situ bored pile hole cleaning device

Abstract

The utility model belongs to the technical field of building construction, and particularly relates to a cast-in-situ bored pile hole cleaning device which comprises a supporting plate, an extraction mechanism is arranged below the supporting plate, and a hole cleaning executing mechanism is arranged on the inner side of the extraction mechanism. The inner wall of the cast-in-place pile is effectively cleaned through the arranged hole rolling and cleaning executing mechanism, a fixing rack is arranged on the outer surface of a connecting ring to be matched with a rolling wheel assembly, the connecting ring is driven by a lifting rope to ascend and descend in a guide straight groove, and therefore a scraping plate can conduct adjustable ascending and descending movement; slurry enters the sediment circulation assembly, the settled slurry is sprayed on the inner wall of the cast-in-place pile through the slurry pump and the slurry spraying pipe after being settled and circulated, the hole cleaning effect is guaranteed, meanwhile, adjustable lifting of the scraping plate is added, the cleaning efficiency is improved, normal hole cleaning operation is guaranteed, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a bored pile hole cleaning device. Background Art

[0002] Bored cast-in-place piles refer to piles that are made by forming pile holes in the foundation soil at the construction site through mechanical drilling, steel pipe squeezing or manual excavation, and placing steel cages inside and pouring concrete. Depending on the hole-forming method, cast-in-place piles can be divided into several categories, such as sunken pipe cast-in-place piles, bored cast-in-place piles and excavated cast-in-place piles.

[0003] After searching, the application document of Chinese patent authorization announcement number CN112576210B discloses a bored pile hole cleaning device, including a sand and gravel pump movable in the pile body. By setting a plurality of support wheels, the support wheels slide along the inner wall of the pile body to achieve the effect of supporting the sand and gravel pump, so that the sand and gravel pump remains stable. By setting a spraying mechanism, the spraying pipe in the spraying mechanism sprays the slurry on the inner wall of the pile body, and uses a scraper to smooth and strengthen it, thereby enhancing the grouting effect and avoiding the slurry from falling and wasting.

[0004] With regard to the above-mentioned related technologies, in this device, if there is residual moisture on the inner wall of the bored pile and the friction coefficient of the wheel bottom of the supporting wheel is not too large, the scraper will often fall directly and cannot effectively clean the inner wall of the bored pile. Therefore, it is urgent to design a bored pile hole cleaning device to deal with these problems. Utility Model Content

[0005] Aiming at the deficiencies of the prior art, the utility model discloses a bored pile hole cleaning device.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A bored pile hole cleaning device comprises a support plate, an extraction mechanism is arranged below the support plate, and a hole cleaning execution mechanism is arranged inside the extraction mechanism.

[0008] The hole cleaning actuator includes a slag discharge pipe arranged below the support plate, four groups of guide straight grooves are vertically arranged on the outer surface of the slag discharge pipe, a connecting ring is arranged on the outer surface of the slag discharge pipe, a roller assembly is arranged between the connecting ring and the guide straight groove, four groups of stands are installed on the outer surface of the connecting ring, scrapers are installed above the four groups of stands, a first pump body is arranged on one side above the slag discharge pipe, a slurry pipe is connected to the power end of the first pump body, a sedimentation circulation assembly is arranged on one side of the first pump body, a mud pump is arranged on one side of the sedimentation circulation assembly, a shotcrete pipe is installed on the power end of the mud pump, a fixed stand is arranged on the outer surface of the connecting ring, and a lifting rope is arranged on the fixed stand.

[0009] Preferably, the extraction mechanism includes a cast-in-place pile arranged under the support plate, a mounting plate is arranged on the inner side of the cast-in-place pile, a mud and sand extraction component is installed under the mounting plate, a negative pressure component is arranged above the mounting plate, a sand and gravel pump is installed on the mounting plate, and a pump pipe is arranged at the power end of the sand and gravel pump.

[0010] Preferably, the roller assembly comprises a bearing frame arranged on the inner side of the connecting ring, and the supporting roller is mounted on the bearing frame.

[0011] Preferably, the sedimentation circulation assembly comprises a sedimentation circulation box arranged on one side of the first pump body, and the second pump body is arranged inside the sedimentation circulation box.

[0012] Preferably, the sediment pumping assembly comprises a sediment pumping platform arranged below the mounting plate, and a sediment pumping ring is installed on the outer surface of the sediment pumping platform.

[0013] Preferably, the negative pressure assembly includes a negative pressure plate arranged above the mounting plate, a negative pressure tube is connected to one side of the negative pressure plate, and a negative pressure pump is arranged at one end of the negative pressure tube.

[0014] The beneficial effects are:

[0015] The utility model discloses a bored pile hole cleaning device, which can effectively clean the inner wall of the bored pile by means of a roller hole cleaning actuator, and can cooperate with a roller assembly by arranging a fixed stand on the outer surface of a connecting ring, and can be lifted and lowered in a guide straight groove by a lifting rope, so that a scraper can be adjusted to lift and move, and when a first pump body draws mortar from a slag discharge pipe and enters a sedimentation circulation assembly, the mud that has been circulated through the sedimentation circulation passes through a mud pump and a grouting pipe, and the precipitated mud is sprayed on the inner wall of the bored pile, thereby ensuring a hole cleaning effect, and at the same time increasing the adjustable lifting of the scraper, thereby improving the cleaning efficiency, ensuring the normal operation of the hole cleaning, and being easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the shaft side structure of the utility model;

[0017] Figure 2 It is a front view structural schematic diagram of the utility model;

[0018] Figure 3 It is a first structural schematic diagram of the utility model;

[0019] Figure 4 It is a second structural schematic diagram of the utility model;

[0020] Figure 5 It is a third structural schematic diagram of the utility model;

[0021] Figure 6 yes Figure 5 Schematic diagram of the structure at A in the middle.

[0022] In the figure: 1. Support plate;

[0023] 2. Extraction mechanism; 201. Cast-in-place pile; 202. Mounting plate; 203. Sand extraction platform; 204. Mud and sand extraction circle; 205. Negative pressure plate; 206. Sand and gravel pump; 207. Pump pipe; 208. Negative pressure pipe; 209. Negative pressure pump;

[0024] 3. Hole cleaning actuator; 301. Slag discharge pipe; 302. Guide straight groove; 303. Connecting ring; 304. Support roller; 3041. Carrying frame; 305. Platform; 306. Scraper; 307. First pump body; 3071. Slurry pipe; 308. Sedimentation circulation box; 3081. Second pump body; 309. Mud pump; 3091. Shotcrete pipe; 310. Fixed stand; 311. Lifting rope. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] Reference Figure 1-6 The utility model provides an embodiment: a bored pile hole cleaning device, comprising a support plate 1, an extraction mechanism 2 is arranged below the support plate 1, and a hole cleaning actuator 3 is arranged inside the extraction mechanism 2.

[0027] In this embodiment: the extraction mechanism 2 includes a cast-in-place pile 201 arranged below the support plate 1, a mounting plate 202 is arranged inside the cast-in-place pile 201, a sediment extraction assembly is installed below the mounting plate 202, a negative pressure assembly is arranged above the mounting plate 202, and a gravel pump 206 is installed on the mounting plate 202. The gravel pump 206 is used to extract the sediment from the cast-in-place pile 201, which is a prior art. A pump pipe 207 is arranged at the power end of the gravel pump 206. The sediment extraction assembly includes a sand extraction platform 203 arranged below the mounting plate 202, and a sediment extraction ring 204 is installed on the outer surface of the sand extraction platform 203. The negative pressure assembly includes a negative pressure plate 205 arranged above the mounting plate 202, a negative pressure pipe 208 is connected to one side of the negative pressure plate 205, and a negative pressure pump 209 is arranged at one end of the negative pressure pipe 208. The negative pressure pump 209 is used to extract the cleaned sediment after filtration, which is a prior art and will not be repeated here.

[0028] In this embodiment: the hole cleaning actuator 3 includes a slag discharge pipe 301 arranged below the support plate 1, four groups of guide straight grooves 302 are vertically arranged on the outer surface of the slag discharge pipe 301, a connecting ring 303 is arranged on the outer surface of the slag discharge pipe 301, a roller assembly is arranged between the connecting ring 303 and the guide straight groove 302, four groups of stands 305 are installed on the outer surface of the connecting ring 303, and scrapers 306 are installed above the four groups of stands 305. A first pump body 307 is arranged on one side above the slag discharge pipe 301, and a slurry pipe 3071 is connected to the power end of the first pump body 307. A sedimentation circulation component is arranged on one side of the first pump body 307, and a mud pump 309 is arranged on one side of the sedimentation circulation component. A spraying pipe 3091 is installed on the power end of the mud pump 309, and the mud pump 309 is used to spray the mud and sand after cleaning and filtration into the inner wall of the cast-in-place pile 201, which is a prior art. A fixed stand 310 is provided on the outer surface of the connecting ring 303, and a lifting rope 311 is provided on the fixed stand 310. A power source is provided on the lifting rope 311. The roller assembly includes a bearing frame 3041 provided on the inner side of the connecting ring 303, and a supporting roller 304 is installed on the bearing frame 3041. The sedimentation circulation assembly includes a sedimentation circulation box 308 provided on one side of the first pump body 307, and the first pump body 307 is used to extract the sand and gravel slurry in the slag pipe 301, which is a prior art. A second pump body 3081 is provided on the inner side of the sedimentation circulation box 308. The mud pump 309 is connected to the sedimentation circulation box 308 by a connecting pipe. The second pump body 3081 is used to circulate the mud in the sedimentation circulation box 308, which is a prior art.

[0029] Working principle: When in use, first install the sand pumping platform 203, negative pressure plate 205 and gravel pump 206 at the lower end of the slag discharge pipe 301, install the slag discharge pipe 301 in the cast-in-place pile 201, extend the pump pipe 207 at the outlet end of the gravel pump 206 and install it in the slag discharge pipe 301, start the gravel pump 206 to pump out the silt at the bottom of the cast-in-place pile 201 through the pump pipe 207, start the first pump body 307, and pump out the silt retained in the slag discharge pipe 301 through the slurry pipe 3071, and then enter the sedimentation circulation box 308. After a period of time, the mud that meets the standards is precipitated, and the second pump body 3081 is started. , enters the mud pump 309 through the connecting pipe, and sprays the mud and sand on the inner wall of the bored pile 201 through the spraying pipe 3091. In the process of spraying mud, the power source arranged on the lifting rope 311 is started to drive the scraper 306 installed on the connecting ring 303 to slide up and down along the bored pile 201. The scraper 306 scrapes the mud on the inner wall of the bored pile 201 to make the side wall of the bored pile 201 form a stable mud skin, reducing the phenomenon of hole collapse. The scraped mud skin falls into the bottom of the bored pile 201, and the negative pressure pump 209 is started to remove the scraped mud skin from the bottom of the pile hole through the negative pressure plate 205, the mud pumping ring 204 and the negative pressure pipe 208, thereby completing the cleaning of the pile hole.

Claims

1. A bored pile hole cleaning device, characterized in that: It comprises a support plate (1), an extraction mechanism (2) is arranged below the support plate (1), and a hole cleaning actuator (3) is arranged inside the extraction mechanism (2); The hole cleaning actuator (3) comprises a slag discharge pipe (301) arranged below the support plate (1); four groups of guide straight grooves (302) are vertically arranged on the outer surface of the slag discharge pipe (301); a connecting ring (303) is arranged on the outer surface of the slag discharge pipe (301); a roller assembly is arranged between the connecting ring (303) and the guide straight groove (302); four groups of stands (305) are installed on the outer surface of the connecting ring (303); scrapers (306) are installed above the four groups of stands (305); A first pump body (307) is arranged on one side above the slag discharge pipe (301), a slurry pipe (3071) is connected to a power end of the first pump body (307), a sedimentation circulation assembly is arranged on one side of the first pump body (307), a mud pump (309) is arranged on one side of the sedimentation circulation assembly, a grouting pipe (3091) is installed on the power end of the mud pump (309), a fixed stand (310) is arranged on the outer surface of the connecting ring (303), and a lifting rope (311) is arranged on the fixed stand (310).

2. A bored pile hole cleaning device according to claim 1, characterized in that: The extraction mechanism (2) comprises a cast-in-place pile (201) arranged below the support plate (1), a mounting plate (202) being arranged inside the cast-in-place pile (201), a sediment extraction component being installed below the mounting plate (202), a negative pressure component being arranged above the mounting plate (202), a gravel pump (206) being installed on the mounting plate (202), and a pump pipe (207) being arranged at the power end of the gravel pump (206).

3. A bored pile hole cleaning device according to claim 1, characterized in that: The roller assembly comprises a bearing frame (3041) arranged inside the connecting ring (303), and a supporting roller (304) is mounted on the bearing frame (3041).

4. A bored pile hole cleaning device according to claim 1, characterized in that: The sedimentation circulation assembly comprises a sedimentation circulation box (308) arranged on one side of the first pump body (307), and a second pump body (3081) is arranged inside the sedimentation circulation box (308).

5. A bored pile hole cleaning device according to claim 2, characterized in that: The sand pumping assembly comprises a sand pumping platform (203) arranged below the mounting plate (202), and a sand pumping ring (204) is installed on the outer surface of the sand pumping platform (203).

6. A bored pile hole cleaning device according to claim 2, characterized in that: The negative pressure assembly comprises a negative pressure plate (205) arranged above the mounting plate (202), one side of the negative pressure plate (205) is connected to a negative pressure tube (208), and one end of the negative pressure tube (208) is provided with a negative pressure pump (209).

Images