A pressure-measuring drill bit sludge removal device
The pressure testing pipe drill bit cleaning device, which uses an adaptive pipe diameter support structure and a drive spring, solves the problem of pressure testing pipe blockage, achieves safe and efficient cleaning, adapts to different pipe diameters and bends, avoids damage to the pressure testing pipe, and improves cleaning efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HEFEI UNIV OF TECH
- Filing Date
- 2026-05-27
- Publication Date
- 2026-06-30
AI Technical Summary
Existing pressure testing tubes are prone to clogging during use, leading to inaccurate pressure data. Existing cleaning methods are inefficient, pose high safety risks, are difficult to adapt to different pipe diameters, and are prone to damaging the structure of the pressure testing tube.
A pressure-measuring pipe drill bit dredging device was designed, which adopts an adaptive pipe diameter support structure and a drive spring. The support wheel is attached to the pipe wall through an auxiliary spring, and the drill bit is driven by a motor to cut the blockage. Combined with water injection, mud is formed and extracted, which can adapt to different pipe diameters and bends.
It achieves a safe and efficient dredging process, adapts to different pipe diameters and bends, avoids eccentric scratches, ensures the structural integrity of the pressure testing pipe, and improves the cleaning effect and operational stability.
Smart Images
Figure CN122298759A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of hydraulic piezometer maintenance equipment, and particularly relates to a piezometer drill bit dredging device. Background Technology
[0002] In hydraulic engineering, piezometers are commonly used to monitor pore water pressure in soil, and their accuracy is crucial for project safety. However, piezometers are prone to clogging during use, mainly caused by the accumulation of sand, soil, and gravel, affecting the accuracy of pressure data. Existing cleaning methods typically have the following problems: they rely heavily on manual cleaning, which is inefficient and poses safety risks; they are difficult to adapt to different pipe diameters and the nature of the clogging material, resulting in inconsistent cleaning effects; and they can easily damage the internal structure of the piezometer, affecting subsequent monitoring. Therefore, there is an urgent need for a piezometer clogging cleaning device that can automatically adapt to different pipe diameters, is easy to operate, and is safe and efficient. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pressure-measuring drill bit dredging device.
[0004] This pressure-measuring pipe drill bit dredging device includes: a drive spring, a waterproof protective shell, an adaptive pipe diameter support structure, and a drill bit; a motor is installed inside the waterproof protective shell, the motor drive shaft extends out of the waterproof protective shell and is connected to the drill bit, and the drive spring is connected to the other end of the waterproof protective shell; each set of adaptive pipe diameter support structures includes an auxiliary bracket, a support wheel, and an auxiliary spring, the auxiliary bracket is hinged to the outside of the waterproof protective shell, the support wheel is rotatably connected to the end of the auxiliary bracket, and the auxiliary spring is connected between the auxiliary brackets.
[0005] Preferably, the adaptive pipe diameter support structure is provided with an array, and the adaptive pipe diameter support structure is evenly distributed circumferentially on the outside of the waterproof protective shell.
[0006] Preferably, the diameter of the drill bit is half the diameter of the pressure measuring tube.
[0007] The method of using this pressure-testing drill bit dredging device includes the following steps: Step 1: Select the drill bit according to the diameter of the pressure testing tube and the type of blockage in the pipe in the pressure testing tube blockage layer, and fix it on the motor drive shaft; Step 2: After checking that the device is functioning normally, place the device into the pressure testing pipe opening, with the support wheel on the outside of the waterproof protective shell fitting against the pipe wall; lower the device until the drill bit touches the blockage inside the pipe. Step 3: Connect the power supply and start the motor, and at the same time push the drive spring to make the drill bit cut the blockage in the pipe; inject water into the pressure test tube to make the cut blockage in the pipe form mud. Step 4: After the drill bit passes through the blockage layer, pull the drive spring to remove the mud from the pressure testing tube; Step 5: Repeat steps 3 and 4 until all blockages inside the pressure testing pipe are cleared.
[0008] Preferably, in step two, the outer side of the waterproof protective shell is provided with an array of adaptive pipe diameter support structures evenly distributed around it. Each set of adaptive pipe diameter support structures includes an auxiliary bracket, a support wheel, and an auxiliary spring connected between the auxiliary brackets. One end of the auxiliary bracket is hinged to the outer side of the waterproof protective shell, and the other end is rotatably connected to the support wheel. When the device is inserted into the pressure measuring tube opening, the auxiliary bracket of each set of adaptive pipe diameter support structures opens up, and the support wheel adheres to the wall of the pressure measuring tube through the auxiliary spring.
[0009] Preferably, in step three, when the drill bit cuts through the blockage in the pipe, the drive spring is in a compressed state, and the end of the drill bit abuts against the blockage in the pipe.
[0010] Preferably, in step three, when the device is located in the bend of the pressure measuring pipe, the drive spring changes the direction of the drill bit according to the direction of the bend, and the drill bit abuts against the blockage in the pipe along the pipe axis.
[0011] The beneficial effects of this invention are: 1) The present invention has an adaptive pipe diameter support structure evenly distributed circumferentially on the side wall of the waterproof protective shell. Each set of adaptive pipe diameter support structures has two auxiliary brackets. Support wheels are fixed on the auxiliary brackets. The two auxiliary brackets are connected by an auxiliary spring. When the auxiliary brackets are opened outward, the auxiliary spring can pull the auxiliary brackets, so that the support wheels are in contact with the pipe wall, so that the device always maintains the centered posture inside the pipe. At the same time, the device can adapt to pressure measuring pipes of different diameters, avoid eccentric scratching of the pipe wall, and improve the versatility and stability of dredging.
[0012] 2) This invention features a drive spring fixed to the rear wall of the waterproof protective shell. The drive spring possesses both flexible guiding and axial propulsion functions, allowing it to deform flexibly with the bend in the pipe. This continuously drives the drill bit to align with the blockage along the pipe axis. Simultaneously, the drive spring has a certain Hooke's coefficient, ensuring that the force transmitted to the drill bit can continuously drive it to press firmly against the blockage along the pipe axis. This achieves integrated and effective dredging of both straight and curved pipes. Attached Figure Description
[0013] Figure 1 It is a perspective view of the overall structure; Figure 2 This is a schematic diagram of the front-end structure of the device; Figure 3 This is a cross-sectional view of a straight pipe usage scenario; Figure 4 This is a cross-sectional view of a scenario where a pipe bend is used.
[0014] Explanation of reference numerals in the attached diagram: 1. Drive spring; 2. Waterproof protective shell; 3. Motor; 4. Support wheel; 5. Auxiliary spring; 6. Drill bit; 7. Power cord; 8. Blockage inside the pipe. Detailed Implementation
[0015] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that those skilled in the art can make several modifications to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.
[0016] Example 1 As one embodiment, a pressure-measuring drill bit dredging device is proposed, such as... Figure 1-4 As shown, the device includes a drive spring 1, a waterproof protective shell 2, an adaptive pipe diameter support structure, and a drill bit 6. A motor 3 is housed inside the waterproof protective shell 2. The drive shaft of the motor 3 extends out of the waterproof protective shell 2 and is connected to the drill bit 6. The other end of the waterproof protective shell 2 is connected to the drive spring 1. The diameter of the drill bit 6 is half the diameter of the pressure measuring pipe. The motor 3 is connected to a power cable 7, which passes through the drive spring 1. The drive spring 1 has both flexible guiding and axial propulsion functions, allowing it to deform flexibly with the bend in the pipe. It can continuously drive the drill bit 6 to align with the blockage 8 inside the pipe along the pipe axis. Simultaneously, the drive spring 1 has a certain Hooke coefficient, ensuring that the force transmitted to the drill bit 6 can continuously drive the drill bit 6 to press firmly against the blockage 8 inside the pipe along the pipe axis, achieving integrated and effective dredging of both straight and curved pipes. like Figure 1 and Figure 2 As shown, the adaptive pipe diameter support structure has an array of units, which are evenly distributed circumferentially on the outside of the waterproof protective shell 2. Each set of adaptive pipe diameter support structures includes an auxiliary bracket, a support wheel 4, and an auxiliary spring 5. The auxiliary bracket is hinged to the outside of the waterproof protective shell 2, the support wheel 4 is rotatably connected to the end of the auxiliary bracket, and the auxiliary spring 5 is connected between the auxiliary brackets. When the auxiliary bracket is extended outward, the auxiliary spring 5 can pull the auxiliary bracket, so that the support wheel 4 fits against the wall of the pressure measuring pipe. At the same time, the circumferentially distributed adaptive pipe diameter support structure ensures that the device always maintains a centered posture, adapts to pressure measuring pipes with different inner diameters, avoids eccentricity and scratches the pipe wall, and improves the versatility and stability of dredging.
[0017] Example 2 As another embodiment, this second embodiment, based on the first embodiment, proposes a method for using a pressure-measuring drill bit dredging device, such as... Figure 1-4 As shown, it includes the following steps: Step 1: Select drill bit 6 according to the diameter of the pressure testing pipe and the type of blockage 8 in the pipe of the pressure testing pipe, and fix it on the drive shaft of motor 3; specifically, according to the inner diameter of the pipe to be tested (48mm) and the type of blockage 8 in the pipe, select drill bit 6 with a diameter half that of the pipe, and complete the fastening connection between drill bit 6 and the front drive shaft of motor 3; the motor 3 is a DC brushed planetary gear reducer motor; Step 2: After verifying that the device functions normally, place the device into the pressure testing pipe inlet, ensuring that the support wheel 4 on the outside of the waterproof protective shell 2 is in contact with the pipe wall; lower the device until the drill bit 6 touches the blockage 8 inside the pipe; specifically, check and confirm that the auxiliary support bracket and support wheel 4 can automatically and adaptively adapt to tension within the 35mm-60mm pipe diameter range under the pulling action of the auxiliary spring 5, without jamming, offset, or elastic failure; check that the drive spring 1 can be smoothly pushed axially by hand without deformation, jamming, or bending, ensuring that the entire assembly is in place and without looseness; like Figure 1 and Figure 2 As shown, the waterproof protective shell 2 has a series of adaptive pipe diameter support structures evenly distributed around its outer circumference. Each adaptive pipe diameter support structure includes an auxiliary bracket, a support wheel 4, and an auxiliary spring 5 connected between the auxiliary brackets. One end of the auxiliary bracket is hinged to the outside of the waterproof protective shell 2, and the other end is rotatably connected to the support wheel 4. When the device is placed into the pressure testing pipe opening, the auxiliary brackets of each adaptive pipe diameter support structure open, and the support wheel 4 adheres to the pressure testing pipe wall through the auxiliary spring 5. The dredging device is vertically and stably placed into the pressure testing pipe opening. The support wheel 4 automatically opens outward under the limitation of the pipe diameter and adheres tightly to the 48mm pipe wall under the elastic force of the auxiliary spring 5, keeping the device in a centered position. The device is slowly and uniformly lowered along the vertical direction of the pipe wall, avoiding shaking and impact during the lowering process, until the drill bit 6 reaches the blockage 8 in the straight pipe and stops. Step 3: Connect the power supply and start the motor 3, simultaneously pushing the drive spring 1 to make the drill bit 6 cut the blockage 8 inside the pipe; inject water into the pressure testing pipe to form mud from the cut-off blockage 8 inside the pipe; specifically, connect the external power supply and start the motor 3. The motor 3 drives the transmission shaft and the drill bit 6 to rotate synchronously at high speed; at the same time, push the drive spring 1 to align the rotating drill bit 6 with the blockage 8 inside the pipe, continuously cutting, breaking, and loosening the accumulated sand, mud, stones, etc., breaking the dense blockage into fine granular slag; start injecting water and maintain the rotation of the drill bit, smoothly and uniformly advancing the drive spring 1, driving the drill bit 6 to continuously drill forward along the pipe axis; mix the broken fine granular slag with water to form mud; Step 4: After the drill bit 6 has drilled through the blockage layer, pull the drive spring 1 to remove the device and extract the mud from the pressure measuring tube. Specifically, after the drill bit 6 has completely drilled through the blockage layer, pull the drive spring 1 to remove the device, then insert the water pumping pipe, start the external suction pump, and continuously extract the mud from the pipe to the ground collection container through the device suction pipe. Step 5: Repeat steps 3 and 4 until all blockages in the entire pressure testing pipe are cleared.
[0018] It should be noted that the parts in this embodiment that are the same as or similar to those in Embodiment 1 can be referred to each other, and will not be repeated in this application.
[0019] Example 3 As another embodiment, this third embodiment, based on the second embodiment, proposes a method for using a pressure-measuring drill bit dredging device, such as... Figure 1-4 As shown, it includes the following steps: Step 1: Select drill bit 6 and fix it on the drive shaft of motor 3 according to the pipe diameter of the pressure measuring tube and the 8 types of blockage in the pipe blockage layer of the pressure measuring tube; Step 2: After checking that the device is functioning normally, place the device into the pressure testing pipe opening, with the support wheel 4 on the outside of the waterproof protective shell 2 fitting against the pipe wall; lower the device until the drill bit 6 touches the blockage 8 inside the pipe. Step 3: Connect the power supply and start the motor 3, simultaneously pushing the drive spring 1 to cause the drill bit 6 to cut the blockage 8 inside the pipe; inject water into the pressure testing pipe to form mud from the cut-off blockage 8; specifically, as follows... Figure 4 As shown, after the mud in the pipe is basically emptied, the dredging device is placed vertically and stably into the pressure testing pipe opening again. The support wheel 4 automatically opens outward under the elastic force of the auxiliary spring 5, closely adhering to the pipe wall and keeping the device in a centered position. The device is slowly and uniformly lowered along the vertical direction of the pipe wall until the drill bit 6 reaches the blockage in the bend and stops. Connect the external power supply; at the same time, push the drive spring 1. The drive spring 1 will change the direction of the drill bit 6 according to the direction of the bend, always keeping the rotating drill bit 6 aligned with the blockage, continuously cutting, breaking and loosening the sand, mud, stones and other accumulated materials, breaking the dense blockage into fine granular slag. Start injecting water and keep the drill bit 6 rotating. Drive the spring 1 forward smoothly and at a constant speed, which drives the drill bit 6 to continue drilling forward along the axis of the curved pipe. This mixes the dispersed fine granular slag with water to form mud. When the drill bit 6 cuts the blockage 8 in the pipe, the drive spring 1 is in a compressed state, and the end of the drill bit 6 abuts against the blockage 8 in the pipe. The high-speed rotary drill bit cuts and breaks up silt such as sand, soil, and stones, and forms mud by injecting water. The mud is then pumped out by an external suction pump. The breaking and discharge are connected simultaneously, which thoroughly cleans the silt and leaves no residue, thus avoiding secondary siltation. The drive spring 1 has dual functions of flexible guidance and axial propulsion. First, it can flexibly deform with the direction of the bend, and can continuously drive the drill bit 6 to align with the blockage along the pipe axis. Second, the drive spring 1 has a certain Hooke coefficient, which ensures that the force transmitted to the drill bit 6 can continuously drive the drill bit 6 to press the blockage along the pipe axis, so as to realize the integrated dredging and effective dredging of straight pipes and bends. Step 4: After drill bit 6 passes through the blockage layer, pull drive spring 1 to remove the device and extract the mud from the pressure measuring tube; Step 5: Repeat steps 3 and 4 until all blockages in the entire pressure testing pipe are cleared.
[0020] It should be noted that the parts in this embodiment that are the same as or similar to those in Embodiment 2 can be referred to each other, and will not be repeated in this application.
[0021] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
Claims
1. A sludge removal device using a pressure-measuring drill bit, characterized in that, include: The structure includes a drive spring (1), a waterproof protective shell (2), an adaptive pipe diameter support structure, and a drill bit (6). The waterproof protective shell (2) contains a motor (3), the drive shaft of which extends out of the waterproof protective shell (2) and is connected to the drill bit (6). The other end of the waterproof protective shell (2) is connected to the drive spring (1). Each set of adaptive pipe diameter support structures includes an auxiliary bracket, a support wheel (4), and an auxiliary spring (5). The auxiliary bracket is hinged to the outside of the waterproof protective shell (2), the support wheel (4) is rotatably connected to the end of the auxiliary bracket, and the auxiliary spring (5) is connected between the auxiliary brackets.
2. The pressure-measuring drill bit dredging device according to claim 1, characterized in that, The adaptive pipe diameter support structure is provided with an array, which is circumferentially distributed on the outside of the waterproof protective shell (2).
3. The pressure-measuring drill bit dredging device according to claim 1, characterized in that, The diameter of the drill bit (6) is half the diameter of the pressure measuring tube.
4. A method of using the pressure-measuring drill bit dredging device according to any one of claims 1 to 3, characterized in that, Includes the following steps: Step 1: Select the drill bit (6) according to the diameter of the pressure measuring tube and the type of blockage (8) in the pipe in the pressure measuring tube blockage layer, and fix it on the drive shaft of the motor (3); Step 2: After checking that the device is functioning normally, place the device into the pressure testing pipe opening, and let the support wheel (4) on the outside of the waterproof protective shell (2) fit against the pipe wall; lower the device until the drill bit (6) touches the blockage (8) in the pipe. Step 3: Connect the power supply and start the motor (3), and at the same time push the drive spring (1) so that the drill bit (6) cuts the blockage (8) in the pipe; inject water into the pressure measuring pipe so that the blockage (8) cut off in the pipe forms mud; Step 4: After the drill bit (6) drills through the blockage layer, pull the drive spring (1) to remove the device and extract the mud from the pressure measuring tube; Step 5: Repeat steps 3 and 4 until all blockages in the entire pressure testing pipe are cleared (8).
5. The method of using the pressure-measuring drill bit dredging device according to claim 4, characterized in that, In step two, an array of adaptive pipe diameter support structures are evenly distributed around the outer side of the waterproof protective shell (2). Each set of adaptive pipe diameter support structures includes an auxiliary bracket, a support wheel (4), and an auxiliary spring (5) connected between the auxiliary brackets. One end of the auxiliary bracket is hinged to the outside of the waterproof protective shell (2), and the other end is rotatably connected to the support wheel (4). When the device is placed into the pressure measuring tube opening, the auxiliary bracket of each set of adaptive pipe diameter support structures is opened, and the support wheel (4) is attached to the wall of the pressure measuring tube through the auxiliary spring (5).
6. The method of using the pressure-measuring drill bit dredging device according to claim 4, characterized in that, In step three, when the drill bit (6) cuts the blockage (8) in the pipe, the drive spring (1) is in a compressed state, and the end of the drill bit (6) abuts against the blockage (8) in the pipe.
7. The method of using the pressure-measuring drill bit dredging device according to claim 4, characterized in that, In step three, when the device is located in the bend of the pressure measuring pipe, the driving spring (1) changes the direction of the drill bit (6) along the bend direction, and the drill bit (6) abuts against the blockage (8) in the pipe along the pipe axis direction.