Cast-in-situ bored pile hole cleaning device

Abstract

The utility model discloses a cast-in-situ bored pile hole cleaning device which comprises a sleeve fixedly connected to the outer wall of the bottom end of a pump pipe in a sleeved mode, a plurality of guide supporting mechanisms are fixedly connected to the outer wall of the sleeve in a circumferential distribution mode, each guide supporting mechanism comprises two telescopic rods, one end of each telescopic rod is fixedly connected with the outer wall of the sleeve, and the other end of each telescopic rod is fixedly connected with the pump pipe. The other ends of the two telescopic rods are jointly and fixedly connected with a vertical plate, and a plurality of guide wheels are installed on the outer wall of the vertical plate. When the device is used, a crane is matched with the lifting lugs, the device is easily lifted into a pile hole, after the bottom end of the pump pipe is lowered to the required height in the pile hole, all the hydraulic cylinders are started to enable the supporting rods to be tightly attached to the inner wall of the pile hole, and then the bottom end of the pump pipe can be fixed into the pile hole; and the distance between each hydraulic cylinder and the sleeve can be adjusted, so that the moving range of the supporting plate is not limited by the stroke of the hydraulic cylinder, the supporting plate is suitable for various pile holes with different hole diameters, and the using effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of cast-in-place piles, in particular to a bored cast-in-place pile hole cleaning device. Background Art

[0002] During the bored pile construction process, a large amount of drill cuttings will be generated at the bottom of the pile hole. In order to avoid adverse effects on the quality of the bored pile, it is necessary to use hole cleaning equipment to clean the bored pile hole to remove the drill cuttings at the bottom of the hole.

[0003] After searching, the patent with announcement number CN219060045U discloses a bored pile hole cleaning device, which can control the sliding block to slide on both sides of the positioning cylinder through the cooperation of the positioning cylinder, the fixed rod, the support rod, the slider, the connecting rod and the driving rod, so that the slider can drive the support rod on the fixed rod to slide through the connecting rod, so that the positioning cylinder can use the telescopic support rods on both sides of the bottom to abut against the inner wall of the bored pile hole to form a limited fixation, so that the pump pipe can be fixed in the bored pile hole by the positioning cylinder, so as to stably extract the sand, gravel and mud in the bored pile hole, thereby ensuring the hole cleaning effect.

[0004] However, the above scheme still has certain drawbacks in actual use. For example, the depth of the bored pile is usually more than ten meters or even dozens of meters, so the length of the driving rod used to connect the electric telescopic rod and the slider is relatively long, which makes it inconvenient to lift the device into the pile hole during use and inconvenient to transport. Secondly, the range of movement of the abutment plate in the device is limited by the stroke of the electric telescopic rod, and its use is relatively limited and needs to be improved. Utility Model Content

[0005] The utility model aims to provide a bored pile hole cleaning device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A bored pile hole cleaning device comprises a casing fixedly sleeved on the outer wall of the bottom end of a pump pipe, the outer wall of the casing is circumferentially distributed and fixedly connected to a plurality of guide support mechanisms, the guide support mechanisms comprise two telescopic rods, one end of the telescopic rods is fixedly connected to the outer wall of the casing, the other ends of the two telescopic rods are commonly fixedly connected to a vertical plate, a plurality of guide wheels are installed on the outer wall of the vertical plate, a hydraulic cylinder is fixedly connected to the outer wall of the casing facing the vertical plate, and a push rod end of the hydraulic cylinder is fixedly connected to a support plate after passing through the vertical plate, a sealing mechanism is arranged between the vertical plate and the support plate, and the push rod of the hydraulic cylinder is located in the sealing mechanism.

[0008] As a further solution of the utility model: the telescopic rod includes a sleeve with one end fixedly and sealedly connected to the sleeve, the other end of the sleeve is slidably penetrated by an inner rod, and the end of the inner rod located outside the sleeve is fixedly connected to the vertical plate, the outer wall of the sleeve close to the inner rod is provided with a convex shell, the convex shell is cooperated with and penetrated by a hand-tightening bolt through a threaded hole, a pressure plate is provided in the convex shell, a rubber sheet is fixedly connected to the outer wall of the pressure plate facing the inner rod, and the threaded end of the hand-tightening bolt abuts against the pressure plate.

[0009] As a further solution of the utility model: a sealing ring is embedded in the opening of the sleeve away from the sleeve, and the inner wall of the sealing ring is in contact with the outer wall of the inner rod. A rubber sleeve is sleeved on the screw rod of the hand-tightening bolt located outside the convex shell, and the two ends of the rubber sleeve are respectively in contact with the convex shell and the hand-tightening bolt.

[0010] As a further solution of the utility model: the sealing mechanism includes a rubber corrugated hose sleeved on the push rod of the hydraulic cylinder, both ends of the rubber corrugated hose are integrally formed with rubber rings, two pressure rings are sleeved on the rubber corrugated hose, the vertical plate and the support plate are fixedly connected to the corresponding pressure rings by screws, and the two rubber rings are pressed against the outer walls of the vertical plate and the support plate by the pressure rings.

[0011] As a further solution of the utility model: the top end of the sleeve is fixedly connected with a connecting plate, and the top of the connecting plate is fixedly installed with a plurality of lifting ears.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] When the utility model is in use, the cooperation of the crane and the lifting ear can be used to easily lift the device into the pile hole, and before lifting, the length of each telescopic rod can be adjusted, so that the distance between the guide wheel and the casing can be adjusted, so that the guide wheel can be used to guide the up and down movement of the device in the pile hole, thereby ensuring that the pump pipe is in the center of the pile hole. When the bottom end of the pump pipe is about to reach the required height in the pile hole, each hydraulic cylinder is started to make the support rod close to the inner wall of the pile hole, so that the bottom end of the pump pipe can be fixed in the pile hole. Through the setting of the telescopic rod, the distance between each hydraulic cylinder and the casing can be adjusted, so that the activity range of the support plate is not limited by the stroke of the hydraulic cylinder, so that it is suitable for pile holes of various diameters and has a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic diagram of the structure of a bored pile hole cleaning device.

[0015] Figure 2 for Figure 1 A partial cross-sectional view of .

[0016] Figure 3 The present invention is a schematic diagram of the structure of a rubber corrugated hose in a bored pile hole cleaning device.

[0017] Among them, pump pipe 1, sleeve 2, connecting plate 3, lifting ear 4, sleeve 5, inner rod 6, convex shell 7, hand-tightening bolt 8, rubber sleeve 9, pressure plate 10, rubber sheet 11, sealing ring 12, vertical plate 13, guide wheel 14, hydraulic cylinder 15, support plate 16, guide rod 17, rubber corrugated hose 18, rubber ring 19, pressure ring 20, screw 21. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figures 1 to 3 In the embodiment of the utility model, a bored pile hole cleaning device comprises a casing 2 fixedly sleeved on the outer wall of the bottom end of a pump pipe 1, a mud pump is connected to the top of the pump pipe 1, and the outer wall of the casing 2 is fixedly connected to at least three guide support mechanisms in a circumferential distribution, the guide support mechanism comprises two telescopic rods, one end of the telescopic rods is fixedly connected to the outer wall of the casing 2, and the other ends of the two telescopic rods are commonly fixedly connected to a vertical plate 13, a plurality of guide wheels 14 are installed on the outer wall of the vertical plate 13, a hydraulic cylinder 15 is fixedly connected to the outer wall of the casing 2 facing the vertical plate 13, and a push rod end of the hydraulic cylinder 15 is fixedly connected to a support plate 16 after passing through the vertical plate 13, a sealing mechanism is provided between the vertical plate 13 and the support plate 16, and the push rod of the hydraulic cylinder 15 is located in the sealing mechanism, and the top of the casing 2 is fixedly connected to a connecting plate 3, and a plurality of lifting ears 4 are fixedly installed on the top of the connecting plate 3.

[0020] By adopting the above scheme, the utility model can use the cooperation of the crane and the lifting lug 4 to lift the device when in use, so that the device can be easily lifted into the pile hole. Before lifting, the length of each telescopic rod can be adjusted, and the distance between the guide wheel 14 and the casing 2 can be adjusted, so that the lifting wheel 14 can be used to guide the up and down movement of the device in the drilled hole, thereby ensuring that the pump pipe 1 is in the center of the pile hole. When the bottom end of the pump pipe 1 is about to reach the required height in the pile hole, each hydraulic cylinder 15 is started to make the support rod 16 close to the inner wall of the pile hole, so that the bottom end of the pump pipe 1 can be fixed in the pile hole, so as to maintain the stability of the bottom end of the pump pipe 1 in the process of extracting the drill residue in the pile hole by the mud pump. By setting the telescopic rod, the distance between each hydraulic cylinder 15 and the casing 2 can be adjusted, so that the range of movement of the support plate 16 is not limited by the stroke of the hydraulic cylinder, so that it is suitable for pile holes of various diameters and has a good use effect.

[0021] Specific combination Figure 1 , Figure 2 In one embodiment of the utility model, the telescopic rod includes a sleeve 5 with one end fixedly and sealedly connected to the sleeve 2, and the other end of the sleeve 5 is slidably penetrated by an inner rod 6, and the end of the inner rod 6 located outside the sleeve 5 is fixedly connected to the vertical plate 13, and the outer wall of the sleeve 5 near the inner rod 6 is provided with a convex shell 7, and the convex shell 7 is penetrated by a hand bolt 8 through a threaded hole, and a pressure plate 10 is provided in the convex shell 7, and a rubber sheet 11 is fixedly connected to the outer wall of the pressure plate 10 facing the inner rod 6, and the threaded end of the hand bolt 8 is against the pressure plate 10.

[0022] By tightening the hand screw 8 on the convex shell 7, the pressure plate 10 can be pushed to move toward the inner rod 6, so that the rubber sheet 11 is close to the inner rod 6 to achieve locking between the sleeve 5 and the inner rod 6, which is simple and convenient to operate.

[0023] Specific combination Figure 2 On the basis of the previous embodiment, a sealing ring 12 is embedded in the opening of the sleeve 5 away from the sleeve 2, and the inner wall of the sealing ring 12 is in contact with the outer wall of the inner rod 6. A rubber sleeve 9 is sleeved on the screw rod of the hand-tightening bolt 8 located outside the convex shell 7, and the two ends of the rubber sleeve 9 are respectively in contact with the convex shell 7 and the hand-tightening bolt 8.

[0024] By setting the sealing ring 12, the sealing between the sleeve 5 and the inner rod 6 can be achieved, thereby preventing sand and gravel in the mud from entering the sleeve 5 from the open end of the sleeve 5. By setting the rubber sleeve 9, after tightening the hand bolt 8, the threaded hole on the convex shell 7 can be sealed, thereby preventing sand and gravel from entering the threaded hole, so as to prevent the hand bolt 8 from getting stuck.

[0025] Specific combination Figure 3 In one embodiment of the utility model, the sealing mechanism includes a rubber bellows hose 18 sleeved on the push rod of the hydraulic cylinder 15, and rubber rings 19 are integrally formed at both ends of the rubber bellows hose 18. Two pressure rings 20 are sleeved on the rubber bellows hose 18, and the vertical plate 13 and the support plate 16 are fixedly connected to the corresponding pressure rings 20 by screws 21, and the two rubber rings 19 are pressed against the outer walls of the vertical plate 13 and the support plate 16 by the pressure rings 20.

[0026] The provision of the rubber corrugated hose 18 can protect the push rod of the hydraulic cylinder 15 and prevent the push rod from contacting the mud, thereby preventing sand and gravel in the mud from scratching the push rod, thereby ensuring the service life of the hydraulic cylinder 15.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bored pile hole cleaning device, characterized in that: The invention comprises a sleeve (2) fixedly sleeved on the outer wall of the bottom end of a pump pipe (1), the outer wall of the sleeve (2) being fixedly connected with a plurality of guide support mechanisms distributed in a circumferential manner, the guide support mechanisms comprising two telescopic rods, one end of the telescopic rods being fixedly connected with the outer wall of the sleeve (2), the other ends of the two telescopic rods being fixedly connected with a vertical plate (13), the outer wall of the vertical plate (13) being provided with a plurality of guide wheels (14), the outer wall of the vertical plate (13) facing the sleeve (2) being fixedly connected with a hydraulic cylinder (15), and the push rod end of the hydraulic cylinder (15) passing through the vertical plate (13) and then fixedly connected with a support plate (16), a sealing mechanism being provided between the vertical plate (13) and the support plate (16), and the push rod of the hydraulic cylinder (15) being located in the sealing mechanism.

2. A bored pile hole cleaning device according to claim 1, characterized in that: The telescopic rod comprises a sleeve (5) having one end fixedly and sealingly connected to the sleeve (2); an inner rod (6) is slidably penetrated through the other end of the sleeve (5); and the end of the inner rod (6) located outside the sleeve (5) is fixedly connected to the vertical plate (13); a convex shell (7) is provided on the outer wall of the sleeve (5) near the inner rod (6); a hand-tightening bolt (8) is penetrated through the convex shell (7) through a threaded hole; a pressing plate (10) is provided in the convex shell (7); a rubber sheet (11) is fixedly connected to the outer wall of the pressing plate (10) facing the inner rod (6); and the threaded end of the hand-tightening bolt (8) abuts against the pressing plate (10).

3. A bored pile hole cleaning device according to claim 2, characterized in that: A sealing ring (12) is embedded in the opening of the sleeve (5) away from the casing (2), and the inner wall of the sealing ring (12) is in contact with the outer wall of the inner rod (6). A rubber sleeve (9) is sleeved on the screw rod of the hand-tightening bolt (8) located outside the convex shell (7), and the two ends of the rubber sleeve (9) are respectively in contact with the convex shell (7) and the hand-tightening bolt (8).

4. A bored pile hole cleaning device according to claim 1, characterized in that: The sealing mechanism comprises a rubber corrugated hose (18) sleeved on a push rod of a hydraulic cylinder (15), both ends of the rubber corrugated hose (18) are integrally formed with rubber rings (19), two pressing rings (20) are sleeved on the rubber corrugated hose (18), the vertical plate (13) and the support plate (16) are fixedly connected to the corresponding pressing rings (20) by screws (21), and the two rubber rings (19) are pressed against the outer walls of the vertical plate (13) and the support plate (16) by the pressing rings (20).

5. The bored pile hole cleaning device according to claim 1, characterized in that: The top end of the sleeve (2) is fixedly connected to a connection plate (3), and a plurality of lifting ears (4) are fixedly mounted on the top of the connection plate (3).

Images