Drilling pipe cleaning device

Abstract

The utility model provides a drilling pipe cleaning device, and relates to the technical field of pipeline cleaning, the drilling pipe cleaning device comprises a cleaning head, and the bottom of the cleaning head is provided with a plurality of slurry outlets; the extrusion assembly comprises a fixing plate arranged on the inner wall of the cleaning head, a rotating rod rotationally arranged on the surface of the fixing plate, a lead screw arranged at the bottom of the rotating rod, a pressing plug plate slidably arranged on the inner side wall of the cleaning head and a driving mechanism arranged in the cleaning head and used for driving the rotating rod to rotate intermittently. The bottom of the cleaning head is further provided with a sealing assembly used for blocking the soybean milk outlet. Condensed and hardened cement blocks attached to the inner wall of the drainage pipeline can be thoroughly cleaned, bentonite slurry put into the cleaning head can be intermittently and slowly extruded out, the cleaning head and the inner wall of a pipe body can be evenly lubricated, and the inner wall of the pipe body is prevented from being abraded by the cleaning head; and the slurry outlet can be blocked before the bentonite slurry is extruded out, and the problem that waste is caused due to the fact that the bentonite slurry flows out of the slurry outlet when the bentonite slurry is thrown into the cleaning head is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline cleaning, in particular to a drilling pipeline cleaning device. Background Art

[0002] Inspection wells are set up for easy installation and maintenance of urban underground infrastructure such as power supply, water supply, drainage, sewage, communications, cable TV, gas pipes, and street light lines. Inspection wells are generally equipped with drainage pipes for discharging sewage, which are usually prone to caking and blockage. For example, concrete, cement and other coagulated and hardened materials enter the pipes and stick to the inside of the pipes after solidification, making them difficult to remove.

[0003] Some pipes are small in diameter, and it is difficult and unsafe to clean them manually. Chemical cleaning is not only inefficient but also the acidic substances may corrode the pipes. If high-pressure water jetting is used, the water pressure is not strong enough to wash off the hard cement blocks attached to the inner wall of the pipe, making it impossible to thoroughly clean the solidified and hardened substances inside the pipe. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the coagulated and hardened substances adhering to the inner wall of the drainage pipe cannot be cleaned thoroughly.

[0005] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0006] A drilling pipe cleaning device comprises a cleaning head, a mounting portion arranged on the top of the cleaning head and a connecting piece arranged on the top of the mounting portion, a accommodating cavity is arranged inside the cleaning head, a plurality of slurry outlets are arranged at the bottom of the cleaning head, a plurality of inclined bevel teeth are also arranged at the bottom of the cleaning head, an extrusion assembly is arranged inside the cleaning head, and the extrusion assembly comprises a fixing plate arranged on the inner wall of the cleaning head, a rotating rod rotatably arranged on the surface of the fixing plate, a screw rod arranged at the bottom of the rotating rod, a plugging plate slidably arranged on the inner side wall of the cleaning head and a driving mechanism arranged inside the cleaning head for driving the rotating rod to rotate intermittently, the plugging plate is threadedly connected to the screw rod, and a sealing assembly for blocking the slurry outlet is also provided at the bottom of the cleaning head.

[0007] As a preferred technical solution of the present application, the driving mechanism includes a motor arranged on the top of the fixed plate, an incomplete gear arranged at the output end of the motor, and a complete gear arranged on the top of the rotating rod and meshing with the incomplete gear.

[0008] As a preferred technical solution of the present application, the sealing assembly includes a curved rod slidably arranged at the bottom of the cleaning head, a sealing head arranged at one end of the curved rod located outside the cleaning head and cooperating with the slurry outlet, a fixed head arranged at one end of the curved rod located inside the cleaning head, and a spring sleeved on the rod wall of the curved rod between the fixed head and the inner bottom wall of the cleaning head.

[0009] As a preferred technical solution of the present application, the sealing head is provided with a conical surface whose outer diameter gradually decreases toward the slurry outlet.

[0010] As a preferred technical solution of the present application, an elastic feed pipe is provided on the top of the pressure plate, which passes through the fixed plate and extends upward. A feed head is provided on the outer wall of the mounting portion. The discharge end of the feed head is connected to the elastic feed pipe. The feed end of the feed head is threadedly connected to a sealing cover.

[0011] As a preferred technical solution of the present application, the connecting member includes a connecting sleeve arranged on the top of the mounting portion and a sleeve arranged on the top of the connecting sleeve, the inner wall of the sleeve is provided with an internal thread, and a plurality of reinforcing ribs are provided between the connecting sleeve and the mounting portion.

[0012] As a preferred technical solution of the present application, telescopic rods are rotatably connected to both sides of the connecting sleeve, and a hanging ring is connected between the ends of the two groups of telescopic rods away from the connecting sleeve.

[0013] As a preferred technical solution of the present application, the outside of the cleaning head is wrapped with hot-melt rubber with a thickness of 2 mm.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. Install the cleaning head on the drilling rig through the connecting piece, and extend the cleaning head into the drain pipe through the drilling rig. The cleaning head with steel structure can scrape off the hardened cement blocks attached to the inner wall of the pipe body. The provided oblique teeth can further scrape off the cement blocks on the inner wall of the pipe body completely. In addition, bentonite slurry can be placed in the accommodating cavity inside the cleaning head in advance. When cleaning the inner wall of the pipe body, the bentonite slurry can be discharged through the provided slurry outlet to increase the lubrication between the pipe wall and the outer wall of the cleaning head, and prevent the cleaning head from grinding the pipe when rotating.

[0016] 2. Through the cooperation of the set motor, incomplete gear, complete gear, rotating rod, screw and pressing plate, the pressing plate can be driven to move intermittently inside the cleaning head, so that the bentonite mud can be squeezed out of the cleaning head intermittently, and the outer wall of the cleaning head can be lubricated gradually and evenly.

[0017] 3. Through the coordination of the set curved rod, sealing head and spring, the bentonite slurry can be squeezed out of the cleaning head only when the pressure plate moves down. Under normal circumstances, the bentonite slurry can be sealed to prevent the bentonite slurry from flowing out of the slurry outlet when the cleaning head has not yet entered the interior of the pipeline, thereby preventing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall structure diagram of the utility model;

[0019] Figure 2 This is a bottom view of the structure of the utility model;

[0020] Figure 3 It is a cross-sectional structural diagram of the utility model;

[0021] Figure 4 For the utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] Indicated in the figure:

[0023] 1. Cleaning head; 101. Mounting part; 102. Slurry outlet; 2. Connecting sleeve; 201. Sleeve; 3. Fixed plate; 4. Rotating rod; 401. Complete gear; 5. Screw rod; 6. Pressure plate; 7. Motor; 701. Incomplete gear; 8. Sealing head; 9. Bending rod; 901. Fixed head; 10. Spring; 11. Feeding head; 1101. Elastic feeding tube; 1102. Sealing cover; 12. Bevel teeth; 13. Telescopic rod; 1301. Hanging ring; 14. Reinforcing rib. DETAILED DESCRIPTION

[0024] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0025] like Figures 1 to 4 As shown, this embodiment proposes a drilling pipe cleaning device, including a cleaning head 1, a mounting portion 101 arranged on the top of the cleaning head 1, and a connecting piece arranged on the top of the mounting portion 101, a receiving cavity is arranged inside the cleaning head 1, a plurality of slurry outlets 102 are arranged at the bottom of the cleaning head 1, and a plurality of inclined bevel teeth 12 are also arranged at the bottom of the cleaning head 1, and an extrusion assembly is arranged inside the cleaning head 1, and the extrusion assembly includes a fixing plate 3 arranged on the inner wall of the cleaning head 1, a rotating rod 4 rotatably arranged on the surface of the fixing plate 3, a screw rod 5 arranged at the bottom of the rotating rod 4, a plugging plate 6 slidably arranged on the inner side wall of the cleaning head 1, and a driving mechanism arranged inside the cleaning head 1 for driving the rotating rod 4 to rotate intermittently, the plugging plate 6 is threadedly connected to the screw rod 5, and a sealing assembly for blocking the slurry outlet 102 is also provided at the bottom of the cleaning head 1;

[0026] First, select the drilling path of the drilling rig and make a pilot hole in the inspection well where the pipeline needs to be cleaned; before making the pilot hole, first seal the upstream pipeline with an air bag and use a sewage suction truck to pump out the wastewater. Forced ventilation is carried out before going down the well, and the operation can only be carried out after the gas detector is tested and qualified. The ventilation and gas detection are maintained during the operation, and a special person is stationed at the hole to observe. After the above preconditions are prepared, a hand-held air compressor chiseling machine is used to break the well wall to make a pilot hole. Then, bentonite slurry is made and put into the cleaning head 1. After that, a directional drilling rig is used to drill according to the designed route. Workers use a hand-cranked hoist and a bracket to lift the cleaning head 1 to the inspection well. The manpower goes down the well again to remove the guide drill bit and installs the cleaning head 1 on the drilling rig through the connecting piece. At this time, the cleaning head 1 can be drilled into the inside of the pipe body, and the cement blocks attached to the inner wall of the pipe body and hardened can be scraped off through the steel structure cleaning head 1; the cement blocks can be further removed thoroughly through the arranged bevel teeth 12. At the same time, the arranged driving mechanism drives the rotating rod 4 and the screw rod 5 to rotate intermittently, and the screw rod 5 drives the pressing plate 6 to slide down intermittently along the inner wall of the cleaning head 1, so that the bentonite slurry inside the cleaning head 1 can be intermittently and slowly squeezed out through the slurry outlet 102. The bentonite slurry can lubricate the pipe wall and the outer wall of the cleaning head 1 to prevent the cleaning head 1 from grinding the pipe when it rotates, and the arranged sealing assembly can block the slurry outlet 102 when the pressing plate 6 does not move, so as to avoid the problem of bentonite slurry leakage and waste when the cleaning head 1 is not in use. Finally, after the pipeline cleaning is completed, a sewage suction truck is used to clean the inside of the pipeline with a high-pressure cleaning head, and then the inside of the pipeline is inspected. If any part is found to be not cleaned, continue to use the suction truck for high-pressure cleaning. If it is not cleaned thoroughly, perform a second cleaning through the cleaning head 1 until the debris is removed, and finally perform another internal inspection of the pipeline.

[0027] The cleaning head 1 is wrapped with 2 mm thick hot melt rubber on the outside; the hot melt rubber is combined with bentonite mud to better lubricate the cleaning head 1 and the inner wall of the tube body.

[0028] It should be noted that an elastic feed tube 1101 is provided on the top of the pressure plate 6, which passes through the fixed plate 3 and extends upward. A feed head 11 is provided on the outer wall of the mounting portion 101. The discharge end of the feed head 11 is connected to the elastic feed tube 1101, and the feed end of the feed head 11 is threadedly connected with a sealing cover 1102. By opening the sealing cover 1102, the prepared bentonite slurry can be put into the accommodating cavity inside the cleaning head 1 through the cooperation of the feed head 11 and the elastic feed tube 1101. When the pressure plate 6 moves, the elastic feed tube 1101 will retract and retract, so it will not affect the movement of the pressure plate 6.

[0029] Specifically, the connecting part includes a connecting sleeve 2 arranged at the top of the mounting part 101 and a sleeve 201 arranged at the top of the connecting sleeve 2, the inner wall of the sleeve 201 is provided with an internal thread, and a plurality of reinforcing ribs 14 are provided between the connecting sleeve 2 and the mounting part 101; the cleaning head 1 can be threadedly installed on the drill rod of the drilling rig by cooperating with the internal thread of the inner wall of the sleeve 201.

[0030] In addition, telescopic rods 13 are rotatably connected to both sides of the connecting sleeve 2, and a hanging ring 1301 is connected between one end of the two sets of telescopic rods 13 away from the connecting sleeve 2; telescopic rods 13 are rotatably connected to both sides of the connecting sleeve 2, and a hanging ring 1301 is connected between one end of the two sets of telescopic rods 13 away from the connecting sleeve 2; when the cleaning head 1 needs to be hoisted to the inspection well, the telescopic rod 13 is rotated to flip the hanging ring 1301 to the top of the sleeve 201, thereby facilitating the hanging and transfer of the cleaning head 1.

[0031] like Figure 3 As shown, as a preferred embodiment, on the basis of the above-mentioned manner, further, the driving mechanism includes a motor 7 arranged on the top of the fixing plate 3, an incomplete gear 701 arranged at the output end of the motor 7, and a complete gear 401 arranged on the top of the rotating rod 4 and meshing with the incomplete gear 701;

[0032] The starting motor 7 drives the incomplete gear 701 connected to its output end to rotate. When the toothed side of the incomplete gear 701 contacts the complete gear 401, it can drive the complete gear 401, the rotating rod 4 and the screw rod 5 to rotate. When the tooth groove on the incomplete gear 701 is disengaged from the complete gear 401, the complete gear 401 and the rotating rod 4 will stop. Therefore, the incomplete gear 701 can drive the rotating rod 4 and the screw rod 5 to rotate intermittently when rotating, and then drive the pressing plate 6 to move intermittently, so as to intermittently and slowly squeeze the bentonite slurry inside the cleaning head 1 out of the accommodating cavity.

[0033] like Figure 4 As shown, as a preferred embodiment, on the basis of the above-mentioned manner, further, the sealing assembly includes a curved rod 9 slidably arranged at the bottom of the cleaning head 1, a sealing head 8 arranged at one end of the curved rod 9 located outside the cleaning head 1 and matched with the slurry outlet 102, a fixed head 901 arranged at one end of the curved rod 9 located inside the cleaning head 1, and a spring 10 sleeved on the rod wall of the curved rod 9 located between the fixed head 901 and the inner bottom wall of the cleaning head 1;

[0034] Under normal circumstances, the spring 10 will drive the curved rod 9 and the sealing head 8 to move upward and block the slurry outlet 102 to prevent the bentonite slurry from flowing out of the slurry outlet 102 after being put into the cleaning head 1, causing waste. When the bentonite slurry inside the cleaning head 1 is squeezed by the pressure plate 6, the pressure on the bentonite slurry will squeeze the sealing head 8 to move downward and away from the slurry outlet 102. At this time, the bentonite slurry can be squeezed out of the slurry outlet 102. When the pressure plate 6 does not move, the pressure on the bentonite slurry disappears, and the spring 10 will reset again to drive the sealing head 8 to move upward to block the slurry outlet 102.

[0035] The sealing head 8 is provided with a conical surface whose outer diameter gradually decreases toward the slurry outlet 102; when the sealing head 8 moves down to open the slurry outlet 102, the conical surface at the top of the sealing head 8 facilitates the bentonite slurry to flow out better.

[0036] The working principle of the utility model is as follows: the cleaning head 1 is installed on the drill rod of the drilling rig through the provided connecting piece, and the cleaning head 1 is screwed into the inside of the pipe body through the drilling rig. The cement blocks that have solidified and hardened and adhered to the inner wall of the pipe body can be scraped off through the cleaning head 1 with a steel structure; the cement blocks can be further removed thoroughly through the provided bevel teeth 12. At the same time, the rotating rod 4 and the screw rod 5 are driven to rotate intermittently through the provided driving mechanism, and the screw rod 5 drives the pressing plate 6 to slide down intermittently along the inner wall of the cleaning head 1, so that the bentonite slurry inside the cleaning head 1 can be intermittently and slowly squeezed out through the slurry outlet 102. The bentonite slurry can lubricate the pipe wall and the outer wall of the cleaning head 1 to prevent the cleaning head 1 from abrading the pipe when rotating, and the provided sealing component can block the slurry outlet 102 when the pressing plate 6 does not move, so as to avoid the problem of bentonite slurry leakage and waste when the cleaning head 1 is not in use.

[0037] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A drilling cleaning device, comprising a cleaning head (1), a mounting portion (101) arranged on the top of the cleaning head (1), and a connecting piece arranged on the top of the mounting portion (101), characterized in that: The cleaning head (1) is provided with a receiving cavity inside, the bottom of the cleaning head (1) is provided with a plurality of pulp outlets (102), the bottom of the cleaning head (1) is also provided with a plurality of inclined bevel teeth (12), the cleaning head (1) is provided with an extrusion assembly inside, the extrusion assembly comprises a fixed plate (3) arranged on the inner wall of the cleaning head (1), a rotating rod (4) rotatably arranged on the surface of the fixed plate (3), a screw rod (5) arranged at the bottom of the rotating rod (4), a plugging plate (6) slidably arranged on the inner side wall of the cleaning head (1), and a driving mechanism arranged inside the cleaning head (1) for driving the rotating rod (4) to rotate intermittently, the plugging plate (6) is threadedly connected to the screw rod (5), and the bottom of the cleaning head (1) is also provided with a sealing assembly for blocking the pulp outlet (102).

2. A drilling cleaning device according to claim 1, characterized in that: The driving mechanism comprises a motor (7) arranged on the top of the fixed plate (3), an incomplete gear (701) arranged at the output end of the motor (7), and a complete gear (401) arranged on the top of the rotating rod (4) and meshing with the incomplete gear (701).

3. A drilling cleaning device according to claim 1, characterized in that: The sealing assembly comprises a curved rod (9) slidably arranged at the bottom of the cleaning head (1), a sealing head (8) arranged at one end of the curved rod (9) located outside the cleaning head (1) and cooperating with the slurry outlet (102), a fixed head (901) arranged at one end of the curved rod (9) located inside the cleaning head (1), and a spring (10) sleeved on the rod wall of the curved rod (9) between the fixed head (901) and the inner bottom wall of the cleaning head (1).

4. A drilling cleaning device according to claim 3, characterized in that: The sealing head (8) is provided with a conical surface whose outer diameter gradually decreases towards the slurry outlet (102).

5. A drilling pigging device according to claim 1, characterized in that: An elastic feed pipe (1101) is provided on the top of the pressure plate (6) and passes through the fixed plate (3) and extends upward. A feed head (11) is provided on the outer wall of the mounting portion (101). The discharge end of the feed head (11) is connected to the elastic feed pipe (1101). The feed end of the feed head (11) is threadedly connected to a sealing cover (1102).

6. A drilling pigging device according to claim 1, characterized in that: The connecting piece comprises a connecting sleeve (2) arranged at the top of the mounting portion (101) and a sleeve (201) arranged at the top of the connecting sleeve (2); an inner wall of the sleeve (201) is provided with an internal thread; and a plurality of reinforcing ribs (14) are provided between the connecting sleeve (2) and the mounting portion (101).

7. A drilling pigging device according to claim 6, characterized in that: Both sides of the connecting sleeve (2) are rotatably connected with telescopic rods (13), and a hanging ring (1301) is connected between the ends of the two groups of telescopic rods (13) away from the connecting sleeve (2).

8. A drilling pigging device according to claim 1, characterized in that: The cleaning head (1) is wrapped with hot-melt rubber with a thickness of 2 mm.

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