A dynamic unblocking device for a multistage extended dredging flush piezometric tube

Abstract

The utility model discloses a kind of dynamic dredging devices of multistage extension type dredging flushing pressure measuring tube, it is related to pressure measuring tube dredging technical field, including high-pressure water access module, multistage connecting pipe assembly, spiral dredging flushing drilling tool assembly, anti-falling safety assembly and pipe mouth fixed and torque transmission wrench.The continuous water passage of each hollow pipe section of multistage connecting pipe assembly is formed by thread connection, top end is connected high-pressure water source, bottom end is connected spiral dredging flushing drilling tool assembly.Each hollow pipe section of multistage connecting pipe assembly gradually extends overall length, spiral dredging flushing drilling tool is lowered to the silt jamming position in pressure measuring tube;When operating, multistage connecting pipe assembly is rotated by pipe mouth fixed and torque transmission wrench driving, spiral drilling tool is drilled under the action of dead weight to block, while high-pressure water is sprayed from jet head to flush silt by hollow passage, slurry mixture is discharged by pipe mouth.Anti-falling safety assembly penetrates each connecting section, prevent component from falling, realize deep hole dynamic continuous dredging.

Description

Technical Field

[0001] This utility model relates to the field of pressure pipe unblocking technology, specifically to a dynamic unblocking device for a multi-stage extended sludge flushing pressure pipe. Background Technology

[0002] Piezometers, with their simple structure and reliable observation capabilities, have become commonly used safety monitoring facilities in hydraulic engineering projects. Their observation data plays a crucial role in accurately analyzing the safety status of hydraulic structures and promptly determining operational stability. However, during long-term operation, scale buildup and siltation can easily lead to blockages inside the pipes. Furthermore, inadequate inspection and management can allow debris such as mud to fall into the pipes, causing localized blockages. These blockages can interfere with the accuracy of piezometer observations to varying degrees, hindering timely understanding and assessment of the safe operation trends of hydraulic structures and posing potential risks to flood control. In addition, the small inner diameter and deep burial of piezometers make them difficult to clear with conventional tools after blockage. Therefore, there is an urgent need for those skilled in the art to develop dredging, flushing, and unblocking devices to solve this practical problem.

[0003] Existing dredging devices, such as CN116651871A, use sludge tank-type dredging devices, which require repeated drilling and sludge removal, resulting in low efficiency. Their operating rods rely on interlocking levers for drive, leading to low torque transmission efficiency and a lack of multi-stage anti-fall protection mechanisms. For deep-hole fine pressure testing pipes with an inner diameter of no more than 50mm and a depth of no less than 15m, existing technologies suffer from discontinuous dredging and a high risk of pipe falling from deep holes. Utility Model Content

[0004] The problem this invention aims to solve is that a pipe-fixing and torque-transmitting wrench is located outside the pressure testing pipe. By clamping the pipe body plane of a multi-stage connecting pipe assembly, the multi-stage connecting pipe assembly is rotated clockwise. Under the pressure of the overall weight of the device, the spiral dredging and flushing drill assembly connected to the end of the multi-stage connecting pipe assembly drills downwards, loosening the mud and sand blocking the pressure testing pipe. At the same time, a high-pressure water inlet module installed at the top of the multi-stage connecting pipe assembly provides high-pressure water flow, which is sprayed out from the jet head on the drill through a hollow channel to break up the loosened mud and sand. Using the inner wall of the pressure testing pipe as a guide and pressure-bearing surface, the mud-water mixture is compressed and transported out of the pipe opening. Ultimately, this invention achieves a multi-stage extended dredging, flushing, and pressure testing pipe unblocking device that can dynamically and continuously dredge, discharge silt in real time, and has multi-stage anti-fall protection.

[0005] To address the aforementioned problems, this utility model provides a dynamic dredging device with a multi-stage extended sludge flushing pressure measuring pipe, comprising: The high-pressure water inlet module is used to connect to an external high-pressure water source and introduce it into the device; The multi-stage connecting pipe assembly consists of multiple detachable threaded hollow pipe sections. Each pipe section is equipped with a fall prevention mechanism at radial intervals. The outer wall of the pipe body is provided with a tool clamping plane. Adjacent hollow pipe sections are connected by threaded sealing to form a continuous water passage. Each hollow pipe section can be screwed in and extended in stages along the axial direction to adjust the depth. The spiral dredging and flushing drill assembly includes a hollow drill body, a spiral cutting structure disposed on the periphery of the hollow drill body, and a jet head disposed at the bottom of the hollow drill body. The top end of the drill body is sealed to the end of a multi-stage connecting pipe assembly via threads, and the bottom end is provided with a jet channel. The fall protection safety component runs through all fall protection mechanisms and is fixed to the outside of the pressure testing tube, forming a fall protection series structure; The pipe fixing and torque transmission wrench has an adjustable clamping mechanism. It locks the clamping plane of the multi-stage connecting pipe assembly by radial rotation torque, drives the pipe body to rotate, and forms a stable support.

[0006] Preferably, the rotary drill assembly is lowered to the blockage depth by axial extension of the multi-stage connecting pipe assembly; high-pressure water flows through the multi-stage connecting pipe assembly; the pipe body rotation drive tool drives the multi-stage connecting pipe assembly to rotate, so that the rotary drill assembly loosens the blockage under its own weight and the rotation of the spiral cutting structure; the high-pressure water flow simultaneously breaks up the loosened material and discharges the mud mixture along the gap between the inner wall of the pressure measuring pipe and the pipe body.

[0007] As a further preferred embodiment, the top of the spiral dredging and flushing drill assembly is fixed to the bottom of the multi-stage connecting pipe assembly via a threaded connection; fall protection safety components are attached to the lifting lugs on both sides of the spiral dredging and flushing drill assembly, and the end of the fall protection rope passes through the annular fasteners on both sides of all the installed multi-stage connecting pipe assemblies in sequence and is then fixed to the outside of the pressure testing pipe; several multi-stage connecting pipe assemblies are interconnected through their respective bottom and top internal and external threads; until the spiral dredging and flushing drill assembly is lowered to the sludge-clogged part of the pressure testing pipe; the topmost multi-stage connecting pipe assembly is connected to the lower end of the high-pressure water inlet module via a thread, and the high-pressure water inlet module is connected to a soft water pipe that provides high-pressure water flow, introducing high-pressure water flow into the device; pipe opening fixing and torque transmission. The wrench is fixed to the plane of the multi-stage connecting pipe assembly above the pressure testing pipe opening by the clamping action of the circular steel plate and the "C"-shaped clamp. Rotating the multi-stage connecting pipe assembly clockwise causes the spiral dredging and flushing drill assembly to drill downwards and loosen the silt blocking the pressure testing pipe under the overall weight of the device. Simultaneously, high-pressure water flows through the hollow channels of the high-pressure water inlet module and the multi-stage connecting pipe assembly, and is ejected from the jet head of the spiral dredging and flushing drill assembly, breaking up the loosened silt. The inner wall of the pressure testing pipe acts as a guide and pressure-bearing surface, forcing the mud-water mixture out of the pipe opening. This process of rotation, drilling to loosen the silt, high-pressure flushing, and mud discharge is repeated to gradually remove the silt accumulated in the pressure testing pipe, ultimately clearing the blockage.

[0008] Preferably, the high-pressure water access module has an internal thread structure at its lower end and a quick-connect part at its upper end. The quick-connect part is a push-pull quick-connect part, which has the insertion and locking functions to adapt to the quick connector of soft water pipe.

[0009] Preferably, the hollow pipe section is a hollow steel pipe structure with an external thread at the top and an internal thread at the bottom. A sealing ring is installed at the bottom of the external thread at the top, and the external thread is threadedly connected to the internal thread structure. The internal thread at the bottom is threadedly connected to the external thread at the top of the lower hollow pipe section. Four tool clamping planes are evenly distributed along the circumference of the hollow pipe section to facilitate clamping and installation, and each pipe section has at least two circles of such plane structure.

[0010] Preferably, the fall protection mechanism includes annular fasteners symmetrically fixed on both sides of the tube body, and the fall protection safety component is a high-strength rope, which is sequentially threaded through all the annular fasteners and anchored to the outside of the hollow tube section.

[0011] Preferably, the upper end of the hollow drill body is provided with an external thread structure, which is connected to the internal thread at the lower end of the hollow pipe section. A sealing ring is fitted between the external thread structure and the internal thread. The spiral cutting structure consists of blades spirally distributed along the hollow drill body, with the blades wrapping the jet head inside. The jet head can be quickly replaced via threads, and different jet heads have different water outlet angles. Anti-fall lugs are provided on both sides of the upper end of the hollow drill body, and the anti-fall safety component is fixed to the anti-fall lugs by hooks.

[0012] Preferably, the adjustable clamping mechanism includes a C-shaped clamping body with a handle on one side, and a threaded groove section extending through its side end on the other side of the C-shaped clamping body. A threaded push rod is rotatably connected to the threaded groove section and extends therein. A circular pressure plate is fixedly installed at the front end of the threaded push rod. The working surface of the circular pressure plate is provided with anti-slip texture, and there is no relative slippage under clamping force. Twisting the threaded push rod can move the circular pressure plate axially and press it against the tool clamping plane of the top section of the hollow pipe section. The threaded push rod and the threaded groove section of the pipe end fixing and torque transmission wrench adopt a trapezoidal thread engagement to achieve clamping and fixing of the multi-stage connecting pipe assembly.

[0013] The advantages of using the above structure are as follows: This invention employs a dynamic dredging mechanism. By fixing the pipe opening and driving the multi-stage connecting pipe assembly to rotate through a torque transmission wrench, the spiral cutting structure loosens the blockage while high-pressure water flows through the jet head to break up and discharge the mud, achieving full dredging in a single drilling operation.

[0014] This invention has a strong ability to adapt to different depths. The multi-stage connecting pipe assembly achieves axial extension through the threaded sealing connection of the hollow pipe section, and the sealing ring ensures the water tightness of deep hole operations.

[0015] This utility model has an excellent safety protection system. The anti-fall safety component runs through all the ring fasteners to form a series structure. Combined with the radial locking function of the pipe fixing and torque transmission wrench, it eliminates the risk of the component falling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the dynamic dredging device of the multi-stage extended sludge flushing pressure measuring pipe of this utility model.

[0017] Figure 2 This is a schematic diagram of the high-pressure water inlet module.

[0018] Figure 3 This is a schematic diagram of a multi-stage connecting pipe assembly.

[0019] Figure 4 This is a cross-sectional schematic diagram of a multi-stage connecting pipe assembly.

[0020] Figure 5 This is a schematic diagram of the structure of a spiral dredging and flushing drill assembly.

[0021] Figure 6 This is a schematic diagram of the structure of a wrench for fixing the pipe opening and transmitting torque.

[0022] In the diagram: 1-High-pressure water inlet module, 11-Internal thread structure, 12-Quick docking part, 2-Multi-stage connecting pipe assembly, 21-Hollow pipe section, 210-External thread, 211-Internal thread, 212-Sealing ring, 22-Anti-fall mechanism, 221-Ring fastener, 23-Tool clamping plane, 3-Spiral dredging and flushing drill assembly, 31-Hollow drill body, 310-External thread structure, 311-Securing ring II, 32-Anti-fall lifting lug, 33-Jet head, 34-Spiral cutting structure, 4-Anti-fall safety component, 5-Pipe port fixing and torque transmission wrench, 51-C-shaped clamp body, 52-Threaded groove section, 53-Threaded push screw, 54-Circular pressure plate. Detailed Implementation

[0023] The present invention will be further explained below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 6 As shown, a dynamic dredging device for a multi-stage extended dredging and flushing pressure measuring pipe includes: a high-pressure water inlet module 1, a multi-stage connecting pipe assembly 2, a spiral dredging and flushing drill assembly 3, a fall-prevention safety assembly 4, and a pipe opening fixing and torque transmission wrench 5.

[0025] The top of the hollow drill body 31 of the spiral dredging and flushing drill assembly 3 is sealed to the inner thread 211 of the hollow pipe section 21 at the bottom of the multi-stage connecting pipe assembly 2 through the external thread structure 310. A sealing ring 311 is provided at the connection to ensure water tightness.

[0026] The spiral dredging and flushing drill assembly 3 is equipped with anti-fall lugs 32 on the upper part for hanging anti-fall safety components 4. The anti-fall safety components 4 are high-strength ropes. The anti-fall safety components 4 are attached to the anti-fall lugs 32 on both sides of the spiral dredging and flushing drill assembly 3. The tail end of the rope passes through the ring fasteners 221 in the anti-fall mechanism 22 on each hollow pipe section 21 in sequence, and is finally anchored to the outside of the pressure measuring pipe, forming a series anti-fall structure throughout the entire process.

[0027] Several hollow pipe sections 21 are screwed together with the internal threads 211 at the tail end of the lower section through the external threads 210 at the top, forming a multi-stage connecting pipe assembly 2 that can extend axially; two tool clamping planes 23 are evenly distributed around the circumference of each pipe section for wrench clamping and positioning.

[0028] Several hollow pipe sections 21 extend their length by gradually engaging the top external thread 210 with the tail internal thread 211, and the spiral dredging and flushing drill assembly 3 is lowered to the blockage position. The lower end of the high-pressure water inlet module 1 is provided with an internal thread structure 11, which is screwed together with the external thread 210 of the hollow pipe section 21 at the top of the multi-stage connecting pipe assembly 2. The top is a quick docking part 12, which is used to achieve insertion connection and locking with the high-pressure soft water pipe.

[0029] Specifically, the hollow pipe section 21 of the multi-stage connecting pipe assembly 2 is a steel pipe structure, with an external thread 210 at the top and a sealing ring 212 at the bottom, and an internal thread 211 at the tail end; four tool clamping planes 23 are evenly distributed around the circumference of the pipe body, and each pipe section has two rings of plane structure. The fall arrestor 22 is composed of symmetrically welded ring fasteners 221.

[0030] The hollow drill body 31 of the spiral dredging and flushing drill assembly 3 has an external thread structure 310 at the top and a sealing ring 311 is fitted on it; the spiral cutting structure 34 wraps the jet head 33 in a spiral shape; the jet head 33 can be replaced by threads and supports different water outlet angles.

[0031] The threaded push rod 53 of the pipe-fixing and torque-transmitting wrench 5 and the threaded groove section 52 of the C-shaped clamp body 51 are fitted with trapezoidal threads; the working surface of the circular pressure plate 54 is provided with anti-slip texture, and there is no slippage when the clamping force is ≥10kN.

[0032] To facilitate understanding of the above-mentioned technical solutions of this utility model, the following detailed description of the above-mentioned technical solutions of this utility model is provided through specific usage methods.

[0033] The specific working process is as follows: First, the external thread structure 310 and sealing ring 2 311 at the top of the spiral dredging and flushing drill tool assembly 3 are screwed into the internal thread 211 of the first hollow pipe section 21 to ensure the air and water seal of the hollow channel and realize the sealed connection of the water passage; to ensure that the high pressure water flow can be stably delivered to the jet head 33 of the spiral dredging and flushing drill tool assembly 3 through the hollow structure.

[0034] Anti-fall safety components 4 are attached to the anti-fall lugs 32 on both sides of the spiral dredging and flushing drill assembly 3. The tail end of the anti-fall rope passes through the annular fasteners 221 on both sides of all the multi-stage connecting pipe assemblies 2 to be installed, and is then fixed to the outside of the pressure testing pipe, forming a reliable anti-fall protection to prevent the device parts from accidentally falling into the pressure testing pipe and being difficult to remove. Subsequently, according to the required depth, more hollow pipe sections 21 are screwed together to form multi-stage connecting pipe assemblies 2, gradually extending the overall length. The spiral dredging and flushing drill assembly 3 is then lowered to the sludge blockage position in the pressure testing pipe to meet the dredging operation requirements of pressure testing pipes at different depths. The sealing ring 212 at the bottom of the external thread 210 at the top of the multi-stage connecting pipe assembly 2 can effectively seal the water leakage channel after the threaded connection, ensuring the sealing of the entire device when water is supplied. The internal thread 11 at the lower end of the high-pressure water inlet module 1 is screwed onto the external thread 210 at the top of the pipe assembly 2, and the external high-pressure soft water pipe is locked at the quick docking part 12 to introduce high-pressure water flow into the device.

[0035] During operation, the C-shaped clamp 51 of the pipe opening fixing and torque transmission wrench 5 is locked in the tool clamping plane 23 of the uppermost hollow pipe section 21. The threaded push rod 53 located in the threaded groove section 52 is manually turned, so that the circular pressure plate 54 fixed at its front end moves axially and presses tightly against the surface of the pipe section, forming a stable clamping force to prevent rotation and slippage.

[0036] The operator then rotates the wrench 5 clockwise, applying rotational torque to the entire multi-stage connecting pipe assembly 2 through the clamping structure; under its own weight, the device pushes the spiral dredging and flushing drill assembly 3 down into the hole, and the external spiral cutting structure 34 breaks, loosens, and conveys the silt blocking the pressure measuring pipe.

[0037] Meanwhile, high-pressure water enters the bottom of the hollow drill body 31 through the continuous water passage formed by the high-pressure water inlet module 1 and each hollow pipe section 21, and is ejected from the jet head 33, working in conjunction with the cutting process to hydraulically break up and flush the loose mud and sand. The inner wall of the pressure measuring pipe serves as a guide and pressure-bearing surface, forcing the mud-water mixture out of the pipe outlet.

[0038] When the drill assembly 3 does not reach the bottom blockage, a new hollow pipe section 21 can be added at the top and the high-pressure water access module 1 can be reconnected to continue the above process to achieve step-by-step extension and continuous dredging.

[0039] Repeat the above-mentioned rotation, drilling, jet flushing, and sludge removal operations until all blockages in the pressure testing tube are cleared, completing the entire dredging and flushing operation. Through the above procedures, this device can achieve highly efficient dredging with "one-time lowering, dynamic continuous drilling, flushing, real-time sludge removal, and multi-level fall protection," significantly improving the dredging efficiency and safety of deep-hole pressure testing tubes.

[0040] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0041] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the invention described herein.

Claims

1. A dynamic dredging device with a multi-stage extended sludge flushing pressure measuring pipe, characterized in that, include: High-pressure water access module (1) is used to connect an external high-pressure water source and introduce it into the device; The multi-stage connecting pipe assembly (2) is composed of multiple detachable threaded hollow pipe sections (21). Each pipe section is provided with a fall prevention mechanism (22) at radial intervals. The outer wall of the pipe body is provided with a tool clamping plane (23). Adjacent hollow pipe sections (21) are connected by threaded sealing to form a continuous water passage. Each hollow pipe section can be screwed and extended in stages along the axial direction to adjust the depth. The spiral dredging and flushing drill assembly (3) includes a hollow drill body (31), a spiral cutting structure (34) disposed on the outer periphery of the hollow drill body (31), and a jet head (33) disposed on the bottom of the hollow drill body (31). The top end of the drill body is sealed to the end of the multi-stage connecting pipe assembly (2) by a thread, and the bottom end is provided with a jet channel. The fall protection safety component (4) runs through all the fall protection mechanisms and is fixed to the outside of the pressure measuring tube, forming a fall protection series structure; The pipe fixing and torque transmission wrench (5) has an adjustable clamping mechanism. It locks the clamping plane of the multi-stage connecting pipe assembly (2) by radial rotation torque, drives the pipe body to rotate, and forms a stable support.

2. The dynamic dredging device for a multi-stage extended dredging, flushing, and pressure-measuring pipe according to claim 1, characterized in that, The rotary drill assembly (3) is lowered to the blockage depth through the axial extension of the multi-stage connecting pipe assembly (2); high-pressure water is delivered to the jet head (33) through the continuous water passage of the multi-stage connecting pipe assembly (2). The pipe-fixing and torque-transmitting wrench (5) drives the multi-stage connecting pipe assembly (2) to rotate, so that the rotary drilling tool assembly (3) can loosen the blockage under its own weight and the rotation of the spiral cutting structure (34); the high-pressure water flow simultaneously breaks up the loosened material and discharges the mud mixture along the gap between the inner wall of the pressure measuring pipe and the pipe body.

3. The dynamic dredging device for a multi-stage extended sludge flushing and pressure testing pipe according to claim 1, characterized in that, The high-pressure water access module (1) has an internal thread structure (11) at its lower end and a quick docking part (12) at its upper end.

4. The dynamic dredging device with a multi-stage extended sludge flushing and pressure testing pipe according to claim 1, characterized in that, The hollow tube section (21) is a hollow steel tube structure with an external thread (210) at the top and an internal thread (211) at the bottom. A sealing ring (212) is configured at the bottom of the external thread (210) at the top. The external thread (210) is threadedly connected to the internal thread structure (11), and the internal thread (211) at the bottom is threadedly connected to the external thread (210) at the top of the hollow tube section (21) at the bottom.

5. The dynamic dredging device for a multi-stage extended sludge flushing and pressure testing pipe according to claim 1, characterized in that, The fall protection mechanism (22) includes ring fasteners (221) symmetrically fixed on both sides of the tube body. The fall protection safety component (4) is a high-strength rope, which is threaded through all the ring fasteners (221) and anchored to the outside of the hollow tube section (21).

6. The dynamic dredging device for a multi-stage extended sludge flushing and pressure testing pipe according to claim 1, characterized in that, The upper end of the hollow drill body (31) is provided with an external thread structure (310), which is connected to the internal thread (211) at the lower end of the hollow pipe section (21). The external thread structure (310) and the internal thread (211) are fitted with a sealing ring (311). The spiral cutting structure (34) is a blade that is spirally distributed along the hollow drill body (31). The blade wraps the jet head (33) inside. The jet head (33) can be quickly replaced by threads. The upper end of the hollow drill body (31) is provided with anti-fall lugs (32) on both sides. The anti-fall safety component (4) is fixed to the anti-fall lugs (32) by hooks.

7. The dynamic dredging device for a multi-stage extended sludge flushing and pressure testing pipe according to claim 1, characterized in that, The adjustable clamping mechanism includes a C-shaped clamping body (51) with a handle on one side, and a threaded groove section (52) extending through its side end on the other side of the C-shaped clamping body (51). A threaded push rod (53) is rotatably connected to the threaded groove section (52) and extends therein. A circular pressure plate (54) is fixedly installed at the front end of the threaded push rod (53). Twisting the threaded push rod can cause the circular pressure plate to move axially and press the tool clamping plane (23) of the top pipe section of the multi-stage connecting pipe assembly (2).

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