Hole cleaning equipment for cast-in-situ bored column

Abstract

The utility model belongs to the field of hole cleaning, and particularly relates to a cast-in-situ bored pile hole cleaning device which comprises a guide pipe body, a sealing ring is connected to the surface of the guide pipe body in a sleeved mode, a limiting assembly is arranged on the surface of the guide pipe body, and a stabilizing assembly is arranged on the surface of the guide pipe body. The limiting assembly comprises a flange connected to the surface of the guide pipe body in a sleeving mode, the surface of the guide pipe body is sleeved with a hoop, and a connecting rod is fixedly installed on the side, close to the end face of the guide pipe body, of the hoop. When a plurality of conduits are connected, the conduits are sealed by the sealing rings, and then the sealing rings are limited by the flanges, so that the sealing rings are kept stable, the conduit body scours sediment inside a drill hole with stable water pressure, and the bottom of the conduit body is supported by the hollow rotating rod and the sliding rod, so that the sediment inside the drill hole is prevented from falling off. And the condition that the bottom of the guide pipe body swings is avoided, so that the guide pipe body stably sprays water flow, and the hole cleaning process is kept stable.

Description

Technical Field

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

[0002] A bored cast-in-place pile refers to a pile formed by means of mechanical drilling or steel pipe soil extrusion at the construction site in the foundation soil, and a steel reinforcement cage is placed therein and concrete is poured. During the drilling process, after the steel reinforcement cage is hoisted into the drill hole, at this time, secondary hole cleaning needs to be carried out in the hole. Usually, multiple conduits are connected in sequence and placed into the hole, and then high-pressure water flow is sprayed into the hole through the conduits, so as to wash up the sediment at the bottom of the hole, and then the sediment is pumped out by a slurry pump to achieve the purpose of hole cleaning.

[0003] Currently, when connecting the conduits, usually a rubber sealing ring is used to seal the connection between adjacent conduits. However, when the water pressure in the conduit is too high, the rubber sealing ring may be deformed or displaced. At this time, the sealing performance of the conduit is affected and effective hole cleaning cannot be achieved. In addition, due to the long connection of multiple conduits, when spraying water through the conduits, the bottom of the conduits may swing, resulting in a decrease in the spraying pressure, thereby reducing the hole cleaning efficiency. Therefore, a hole cleaning device for bored cast-in-place piles is proposed for the above problems. Content of the Utility Model

[0004] In order to make up for the deficiencies of the prior art and avoid the problem of reduced hole cleaning efficiency, the utility model proposes a hole cleaning device for bored cast-in-place piles.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a hole cleaning device for bored cast-in-place piles, including a conduit body, a sealing ring is sleeved on the surface of the conduit body, a limiting component is arranged on the surface of the conduit body, and a stabilizing component is arranged on the surface of the conduit body;

[0006] The limiting component includes a flange sleeved on the surface of the conduit body, a clamp is sleeved on the surface of the conduit body, a connecting rod is fixedly installed on one side of the clamp close to the end face of the conduit body, and a reinforcing rib is fixedly installed on the surface of the connecting rod.

[0007] Preferably, there are multiple conduit bodies and their end faces are in contact with each other in sequence. The two flanges on the surfaces of the adjacent ends of the two conduit bodies are in contact with each other, and the two flanges are fixedly connected by bolts and nuts, so that the sealing ring inside is stably limited on the surface of the conduit body by the mutual limitation of the two flanges, avoiding the displacement of the conduit body and affecting the sealing performance inside the conduit body.

[0008] Preferably, the clamp is fixed on the surface of the conduit body by bolts and nuts. One end of the connecting rod away from the clamp is fixedly installed on the end face of the flange, and one end of the reinforcing rib away from the connecting rod is fixedly installed on the end face of the flange. The flange is further limited by the clamp and the connecting rod, so that the flange stably limits the sealing ring.

[0009] Preferably, the stabilizing assembly includes a fixed sleeve fixedly installed on the bottom surface of the conduit body. A hollow rotating rod is rotatably connected to the top of the fixed sleeve. A semi-gear is fixedly installed on the surface of the bottom of the hollow rotating rod. A sliding rod is slidably connected to the inside of the top of the hollow rotating rod. An arc-shaped buffer plate is fixedly installed at the top of the sliding rod. A vertical groove is formed at one end of the hollow rotating rod close to the conduit body. A hollow sleeve is fixedly installed inside the fixed sleeve. A driven rod is slidably connected to the inside of the hollow sleeve. A rack is fixedly installed at the top of one end of the driven rod close to the hollow rotating rod. A buffer spring is fixedly installed inside the hollow sleeve away from the rack. A pull rope is fixedly connected to the top of one side of the hollow rotating rod close to the conduit body. A fixing ring is fixedly installed on the surface of the conduit body. A roller is fixedly installed at the top inside the vertical groove. A clamping block is fixedly installed on the surface of the conduit body.

[0010] Preferably, the semi-gear is meshed with the rack. A return spring is fixedly connected between the sliding rod and the bottom wall of the hollow rotating rod. The vertical groove communicates with the inside of the hollow rotating rod. When the driven rod moves upward, it will drive the rack to move upward accordingly. Then the rack will push the meshed semi-gear, so that the semi-gear drives the hollow rotating rod to rotate away from the conduit body.

[0011] Preferably, a groove penetrating through the upper and lower ends is formed inside the fixed sleeve. The hollow sleeve penetrates through the upper and lower ends of the fixed sleeve through the groove. One end of the buffer spring away from the hollow sleeve is fixedly installed on the surface of the conduit body.

[0012] Preferably, the fixing ring and the roller are at the same height in the vertical direction. The pull rope passes through the inside of the fixing ring and the surface of the roller in sequence and is fixedly connected to the bottom of the hollow rotating rod. The hollow rotating rod is sleeved inside the clamping block. When the hollow rotating rod rotates, it will pull the pull rope, thereby causing the sliding rod to move away from the hollow rotating rod until the arc-shaped buffer plate at the top of the sliding rod abuts against the drilling wall. At this time, the sliding rod and the hollow rotating rod support and stabilize the bottom of the conduit body.

[0013] The beneficial effects of the present utility model are as follows:

[0014] When connecting multiple conduits, the present utility model uses a sealing ring to seal the conduits, and then uses a flange to limit the sealing ring, so that the sealing ring remains stable. At this time, the conduit body flushes the sediment inside the drilling hole with stable water pressure.

[0015] The bottom of the catheter body is supported by the hollow rotating rod and the sliding rod, avoiding the situation of swinging at the bottom of the catheter body, so that the catheter body sprays water stably, and further making the hole cleaning process stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 is a structural schematic diagram of the limiting component of the present invention;

[0019] Figure 3 is a partial cross-sectional structural schematic diagram of the bottom of the catheter body of the present invention;

[0020] Figure 4 is a partial cross-sectional side view structural schematic diagram of the hollow rotating rod of the present invention;

[0021] Figure 5 is of the present invention Figure 4 is an enlarged structural schematic diagram of part A in;

[0022] Figure 6 is of the present invention Figure 4 is an enlarged structural schematic diagram of part B in.

[0023] In the figure: 1. Catheter body; 2. Sealing ring; 3. Limiting component; 31. Flange; 32. Clamp; 33. Connecting rod; 34. Reinforcing rib; 4. Stabilizing component; 41. Fixed sleeve; 421. Hollow rotating rod; 422. Half gear; 423. Sliding rod; 424. Arc buffer plate; 425. Vertical groove; 431. Hollow sleeve; 432. Driven rod; 433. Rack; 434. Buffer spring; 441. Pull rope; 442. Fixed ring; 443. Roller; 45. Block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] The following further describes this application in detail with reference to Figure 1 —6.

[0026] The embodiment of this application discloses a hole cleaning device for bored cast-in-place piles. Refer to Figure 1 , a hole cleaning device for bored cast-in-place piles, including a catheter body 1, a sealing ring 2 is sleeved on the surface of the catheter body 1, a limiting component 3 is arranged on the surface of the catheter body 1, and a stabilizing component 4 is arranged on the surface of the catheter body 1;

[0027] Refer to Figure 2 , the limiting component 3 includes a flange 31 sleeved on the surface of the catheter body 1. There are multiple catheter bodies 1, and their head and tail end faces are in contact with each other in sequence. The two flanges 31 on the adjacent surfaces of the proximal ends of two adjacent catheter bodies 1 are in contact with each other. The two flanges 31 are fixedly connected by bolts and nuts. Thus, the sealing ring 2 inside is stably limited on the surface of the catheter body 1 by the mutual limitation of the two flanges 31, avoiding the displacement of the catheter body 1 and affecting the sealing performance inside the catheter body 1. A clamp 32 is sleeved on the surface of the catheter body 1. One side of the clamp 32 close to the end face of the catheter body 1 is fixedly installed with a connecting rod 33. A reinforcing rib 34 is fixedly installed on the surface of the connecting rod 33. The clamp 32 is fixed on the surface of the catheter body 1 by bolts and nuts. One end of the connecting rod 33 away from the clamp 32 is fixedly installed on the end face of the flange 31. One end of the reinforcing rib 34 away from the connecting rod 33 is fixedly installed on the end face of the flange 31. The flange 31 is further limited by the clamp 32 and the connecting rod 33, so that the flange 31 stably limits the sealing ring 2.

[0028] Refer to Figure 3 - Figure 6, the stabilizing component 4 includes a fixed sleeve 41 fixedly installed on the bottom surface of the conduit body 1. A hollow rotating rod 421 is rotatably connected to the top of the fixed sleeve 41. A semi-gear 422 is fixedly installed on the surface of the bottom of the hollow rotating rod 421. A sliding rod 423 is slidably connected to the inside of the top of the hollow rotating rod 421. An arc-shaped buffer plate 424 is fixedly installed at the top of the sliding rod 423. A vertical groove 425 is formed at one end of the hollow rotating rod 421 close to the conduit body 1. A hollow sleeve 431 is fixedly installed inside the fixed sleeve 41. A driven rod 432 is slidably connected to the inside of the hollow sleeve 431. A rack 433 is fixedly installed at the top of one end of the driven rod 432 close to the hollow rotating rod 421. The semi-gear 422 and the rack 433 are meshed and connected. A return spring is fixedly connected between the sliding rod 423 and the bottom wall of the hollow rotating rod 421. The vertical groove 425 communicates with the inside of the hollow rotating rod 421. When the driven rod 432 moves upward, it will drive the rack 433 to move upward accordingly. Then, the rack 433 will push the meshed semi-gear 422, causing the semi-gear 422 to drive the hollow rotating rod 421 to rotate away from the conduit body 1. A buffer spring 434 is fixedly installed inside the hollow sleeve 431 at the end away from the rack 433. A groove penetrating through the upper and lower ends is formed inside the fixed sleeve 41. The hollow sleeve 431 penetrates through the upper and lower ends of the fixed sleeve 41 through the groove. One end of the buffer spring 434 away from the hollow sleeve 431 is fixedly installed on the surface of the conduit body 1. A pull rope 441 is fixedly connected to the top of the hollow rotating rod 421 on the side close to the conduit body 1. A fixing ring 442 is fixedly installed on the surface of the conduit body 1. A roller 443 is fixedly installed at the top inside the vertical groove 425. A clamping block 45 is fixedly installed on the surface of the conduit body 1. The vertical heights of the fixing ring 442 and the roller 443 are the same. The pull rope 441 passes through the inside of the fixing ring 442 and the surface of the roller 443 in sequence and is fixedly connected to the bottom of the hollow rotating rod 421. The hollow rotating rod 421 is sleeved inside the clamping block 45. When the hollow rotating rod 421 rotates, it will pull the pull rope 441, thereby causing the sliding rod 423 to move away from the hollow rotating rod 421 until the arc-shaped buffer plate 424 at the top of the sliding rod 423 abuts against the drilling wall. At this time, the sliding rod 423 and the hollow rotating rod 421 support and stabilize the bottom of the conduit body 1.

[0029] Working principle: The operator first connects the end faces of the two conduit bodies 1 through the sealing ring 2, and then sleevs two flanges 31 on the surface of the sealing ring 2. At this time, the two flanges 31 are respectively located on the surfaces of the proximal ends of the two conduit bodies 1. Then, the two flanges 31 are connected and fixed by bolts and nuts. Then, two clamps 32 are respectively sleeved on the surface of the conduit body 1 and fixed. At this time, the clamp 32 limits the position of the flange 31 through the connecting rod 33 and the reinforcing rib 34, and at this time, the flange 31 limits the position of the sealing ring 2, so that the sealing ring 2 is stably and tightly attached between the two conduit bodies 1. At this time, the sealing ring 2 always seals the connection between the two conduit bodies 1. Then, the remaining conduit bodies 1 are connected in sequence, and finally, the stabilizing assembly 4 is installed on the surface of the lowermost conduit body 1.

[0030] After the installation is completed, the operator uses tools such as a crane to lift the conduit body 1 and place it downward inside the drilling well. At this time, the driven rod 432 first contacts the bottom of the well, and the driven rod 432 will move upward under the reaction force until the bottom end of the driven rod 432 is flush with the bottom end of the lowermost conduit body 1. During this process, the driven rod 432 will compress the buffer spring 434 and drive the rack 433 to move upward. The rack 433 will push the meshing half gear 422 to rotate. At this time, the half gear 422 will drive the hollow rotating rod 421 to rotate away from the conduit body 1 until the half gear 422 rotates 90 degrees and abuts against the top end of the fixed sleeve 41. When the hollow rotating rod 421 rotates, its top end will gradually move away from the fixed ring 442. At this time, the hollow rotating rod 421 will pull the pull rope 441, so that the pull rope 441 slides on the surface of the fixed ring 442 and the roller 443 and pulls the bottom end of the sliding rod 423, so that the sliding rod 423 is pulled out of the inside of the hollow rotating rod 421. When the hollow rotating rod 421 rotates 90 degrees, at this time, the sliding rod 423 is also pulled out of the hollow rotating rod 421. At the same time, the arc-shaped buffer plate 424 is pushed by the sliding rod 423 to abut against the inner wall of the drilling well. The conduit body 1 is limited by the four groups of sliding rods 423 and the hollow rotating rod 421, so that the lowermost conduit body 1 will not swing during operation.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A drilling and grouting column hole cleaning device, characterized in that: It comprises a catheter body (1), a sealing ring (2) is sleeved on the surface of the catheter body (1), a limiting component (3) is arranged on the surface of the catheter body (1), and a stabilizing component (4) is arranged on the surface of the catheter body (1); The limiting component (3) comprises a flange (31) sleeved on the surface of the catheter body (1), a clamp (32) sleeved on the surface of the catheter body (1), a connecting rod (33) fixedly mounted on one side of the clamp (32) close to the end face of the catheter body (1), and a reinforcing rib (34) fixedly mounted on the surface of the connecting rod (33).

2. The drilling and grouting column hole cleaning device according to claim 1 is characterized in that: The catheter body (1) has a plurality of end faces which are in contact with each other in sequence, and two flanges (31) on the proximal end surfaces of two adjacent catheter bodies (1) are in contact with each other, and the two flanges (31) are fixedly connected by bolts and nuts.

3. The drilling and grouting column hole cleaning device according to claim 1 is characterized in that: The clamp (32) is fixed to the surface of the conduit body (1) by means of bolts and nuts, one end of the connecting rod (33) away from the clamp (32) is fixedly mounted on the end surface of the flange (31), and one end of the reinforcing rib (34) away from the connecting rod (33) is fixedly mounted on the end surface of the flange (31).

4. The drilling and grouting column hole cleaning device according to claim 1 is characterized in that: The stabilizing component (4) comprises a fixing sleeve (41) fixedly mounted on the bottom surface of the catheter body (1); the top of the fixing sleeve (41) is rotatably connected to a hollow rotating rod (421); a half gear (422) is fixedly mounted on the bottom surface of the hollow rotating rod (421); the top of the hollow rotating rod (421) is internally slidably connected to a sliding rod (423); the top of the sliding rod (423) is fixedly mounted with an arc-shaped buffer plate (424); a vertical groove (425) is provided at one end of the hollow rotating rod (421) close to the catheter body (1); a hollow sleeve (431) is fixedly mounted inside the fixing sleeve (41); The sleeve (431) is internally slidably connected to a driven rod (432); a rack (433) is fixedly installed on the top of one end of the driven rod (432) close to the hollow rotating rod (421); a buffer spring (434) is fixedly installed on the inside of one end of the hollow sleeve (431) away from the rack (433); a pull rope (441) is fixedly connected to the top of one side of the hollow rotating rod (421) close to the catheter body (1); a fixing ring (442) is fixedly installed on the surface of the catheter body (1); a roller (443) is fixedly installed on the top of the vertical groove (425); and a clamping block (45) is fixedly installed on the surface of the catheter body (1).

5. The drilling and grouting column hole cleaning device according to claim 4 is characterized in that: The half gear (422) and the rack (433) are meshedly connected, a return spring is fixedly connected between the sliding rod (423) and the bottom wall of the hollow rotating rod (421), and the vertical groove (425) is communicated with the inside of the hollow rotating rod (421).

6. The drilling and grouting column hole cleaning device according to claim 4 is characterized in that: The interior of the fixing sleeve (41) is provided with a groove penetrating the upper and lower ends, the hollow sleeve (431) penetrates the upper and lower ends of the fixing sleeve (41) through the groove, and the end of the buffer spring (434) away from the hollow sleeve (431) is fixedly mounted on the surface of the catheter body (1).

7. The drilling and grouting column hole cleaning device according to claim 4 is characterized in that: The fixing ring (442) and the roller (443) have the same height in the vertical direction. The pull rope (441) passes through the interior of the fixing ring (442) and the surface of the roller (443) in sequence and is fixedly connected to the bottom of the hollow rotating rod (421). The hollow rotating rod (421) is sleeved inside the clamping block (45).

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