Grouting device for repairing drainage pipeline

Abstract

The utility model relates to the technical field of pipeline repair, in particular to a grouting device for repairing a drainage pipeline, which comprises a horizontally placed barrel, the lower end of the barrel is conical, a barrel cover covers the opening of the upper end of the barrel, the barrel cover and the barrel are assembled and fixed through screws, and a discharge channel is wrapped on the inner wall of the barrel. And the outer wall surface of the discharging channel and the inner wall surface of the cylinder body are mutually welded and fixed. Slurry can be conveyed into the barrel through the feeding connector, then a power source of the motor is switched on, so that the motor can drive the rotating shaft used for driving, the rotating shaft drives the spiral protrusion to rotate, and the rotating shaft can be matched with the threaded protrusion to form a stable threaded feeding mechanism in cooperation with space limitation of the discharging channel, and therefore the feeding strength of slurry conveying is guaranteed; by means of the conical structure below the barrel, materials can conveniently enter the feeding pipe through the discharging connector, finally, the feeding pipe is inserted into a drainage pipeline, and a whole set of grouting process is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline repair, in particular to a grouting device for repairing a drainage pipeline. Background Art

[0002] Drainage pipes refer to the system composed of pipes and their ancillary facilities that collect and discharge sewage, wastewater and rainwater. They include trunk pipes, branch pipes and pipes leading to treatment plants. No matter they are built on the streets or anywhere else, as long as they are used for drainage, they should be counted as drainage pipes.

[0003] The length of the drainage pipe refers to the sum of the lengths of all drainage main pipes, trunk pipes, branch pipes, inspection wells and connecting well inlets and outlets.

[0004] The calculation should be based on a single pipe, that is, if there are two or more drainage pipes running side by side on the same street, the length of each drainage pipe should be added together for calculation.

[0005] The plastic-steel wrapped pipe is made of steel-plastic composite special-shaped strips through spiral winding welding (extrusion welding on the overlap surface). Its inner wall is smooth and flat, and the specifications are DN200-DN2600mm.

[0006] This type of pipe has the advantages of corrosion resistance, light weight, easy installation, large flow rate, and long service life (50 years). It can replace pipes made of high-energy consumption materials (cement, cast iron, ceramics, etc.) and is an environmentally friendly green product.

[0007] At present, after long-term use, the external maintenance of drainage pipes can be done by workers directly applying paint or wrapping materials under observable conditions. However, if cracks or blockages appear on the inner wall of the pipe, workers cannot operate through conventional technical means and need to use grouting to allow the slurry for repairing cracks or the slurry for clearing blockages to pass through the drainage pipe. Therefore, it is necessary to design a device that can stabilize the grouting to meet the needs of stable grouting of drainage pipes. Utility Model Content

[0008] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to provide a method for stably grouting a drainage pipe.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A grouting device for repairing a drainage pipe is designed, comprising a horizontally placed cylinder, the lower end of which is conically arranged, the upper end opening of which is covered with a cylinder cover, and the cylinder cover and the cylinder are assembled and fixed by screws, a discharge channel is wrapped on the inner wall of the cylinder, and the outer wall surface of the discharge channel and the inner wall surface of the cylinder are welded and fixed to each other, a channel with a circular cross-section is arranged at the center of the discharge channel, and the upper end surface of the discharge channel is conically concave, a shaft sleeve is arranged at the center of the cylinder cover, and the outer wall surface of the shaft sleeve passes through the center of the cylinder cover. The cylinder body is provided with a motor on its upper end surface, and the outer wall of the motor is assembled with the cylinder body through a bracket, and a rotating shaft for driving is provided inside the motor, and one end of the rotating shaft extends outward through the inside of the motor, and a spiral protrusion is wound around the surface of the rotating shaft, and the spiral protrusion is arranged through the center of the discharge channel, and a feed interface is arranged at the upper end of one side of the outer wall of the cylinder body, and the outer wall surface of the feed interface passes through the cylinder wall of the cylinder body, and the connection between the feed interface and the cylinder body is fixed by welding.

[0011] In detail, a support leg is fixed on the outer wall surface of the conical lower end of the cylinder, and the support leg is welded and fixed to the outer wall surface of the cylinder. The number of the support legs is at least five and they are equidistantly distributed with respect to each other.

[0012] In detail, a discharge interface is provided at the center of the conical lower end surface of the cylinder, the outer wall surface of the discharge interface passes through the center of the lower end of the cylinder, and the connection position of the two is fixed by welding.

[0013] In detail, a feeding pipe is provided at the port position of the discharge interface, and the end of the feeding pipe and the end of the discharge interface are fixed to each other via a flange.

[0014] In detail, an annular sleeve is arranged on the outer wall surface of the other end of the feeding pipe, and the annular sleeve has a circular structure.

[0015] In detail, the outer wall surface of the annular sleeve is wrapped with a sealing sleeve, the inner wall surface of the sealing sleeve is bonded to the outer wall surface of the annular sleeve by resin glue, and the sealing sleeve is made of water-swellable rubber material.

[0016] In detail, an external thread is arranged on the outer wall surface of the feeding pipe, and an internal thread is arranged on the inner wall surface of the annular sleeve, and the internal thread and the external thread are butt-jointed and assembled via threads.

[0017] The design scheme proposed by the utility model has the following beneficial effects during application:

[0018] 1. Through the feed interface, the slurry can be transported into the cylinder. Then, the power of the motor is turned on so that the motor can drive the driving shaft, which drives the spiral protrusion to rotate. In accordance with the space limitation of the discharge channel, it can cooperate with the threaded protrusion to form a stable threaded feeding mechanism, thereby ensuring the feeding strength of the slurry transportation. Through the conical structure under the cylinder, it is convenient for the material to enter the feeding pipe through the discharge interface. Finally, the feeding pipe is inserted into the drainage pipe to realize a complete grouting process.

[0019] 2. When the feed pipe and the drainage pipe are inserted and connected, the annular sleeve with matching diameters is first threadedly connected with each other through the external thread and the internal thread to realize the assembly and fixation of the feed pipe and the annular sleeve. Then, when the feed pipe is inserted into the drainage pipe, the sealing sleeve on the outer wall of the annular sleeve is inserted into the drainage pipe in the form of extrusion to form a stable filling structure. Because the sealing sleeve is a water-swelling material, it can be directly expanded and sealed during grouting if leakage occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the internal cross-section of the overall structure of the utility model;

[0023] Figure 4 It is an enlarged schematic diagram of point a of the utility model;

[0024] Figure 5 It is a schematic diagram of an oblique top view of the overall structure of the utility model.

[0025] In the figure: 10, cylinder body; 11, cylinder cover; 12, discharge channel; 13, shaft sleeve; 14, rotating shaft; 15, spiral protrusion; 16, motor; 17, feed interface; 20, support leg; 21, discharge interface; 22, feed pipe; 30, annular sleeve; 31, sealing sleeve; 32, external thread; 33, internal thread. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Reference Figure 1-Figure 5A grouting device for repairing a drainage pipe comprises a horizontally placed cylinder 10, the lower end of the cylinder 10 is conical, the upper end opening of the cylinder 10 is covered with a cylinder cover 11, and the cylinder cover 11 is assembled and fixed to the cylinder 10 by screws, a discharge channel 12 is wrapped on the inner wall of the cylinder 10, and the outer wall surface of the discharge channel 12 is welded and fixed to the inner wall surface of the cylinder 10, a channel with a circular cross section is arranged at the center of the discharge channel 12, and the upper end surface of the discharge channel 12 is conical and concave, a sleeve 13 is arranged at the center of the sleeve cover 11, and the outer wall surface of the sleeve 13 passes through the center of the sleeve cover 11, The connection position of the two is fixed by welding, a motor 16 is arranged on the upper end surface of the cylinder cover 11, and the outer wall of the motor 16 is assembled with the cylinder cover 11 through a bracket, a rotating shaft 14 for driving is arranged inside the motor 16, and one end of the rotating shaft 14 extends outward through the inside of the motor 16, a spiral protrusion 15 is wound around the surface of the rotating shaft 14, and the spiral protrusion 15 is arranged to penetrate the center of the discharge channel 12, a feed interface 17 is arranged on the upper end of one side of the outer wall of the cylinder body 10, the outer wall surface of the feed interface 17 penetrates the cylinder wall of the cylinder body 10, and the connection between the feed interface 17 and the cylinder body 10 is fixed by welding.

[0028] It should be further explained that a support leg 20 is fixed on the outer wall surface of the tapered lower end of the cylinder 10, and the support leg 20 is welded and fixed to the outer wall surface of the cylinder 10. The number of the support legs 20 is at least five and they are equidistantly distributed with respect to each other. The setting of the support legs 20 needs to be staggered with the feeding pipe 22. The setting of multiple support legs 20 ensures the stability of the cylinder 10.

[0029] It should be further explained that a discharge interface 21 is provided at the center of the cone at the lower end surface of the cylinder 10 , the outer wall surface of the discharge interface 21 passes through the center of the lower end of the cylinder 10 , and the connection position of the two is fixed by welding, so that the slurry can enter the feed pipe 22 through the discharge interface 21 .

[0030] It should be further explained that a feed pipe 22 is provided at the port position of the discharge interface 21, and the end of the feed pipe 22 and the end of the discharge interface 21 are fixed to each other through a flange, and the sealing stability of the joint is ensured by flange docking.

[0031] It should be further explained that an annular sleeve 30 is provided on the outer wall surface of the other end of the feeding pipe 22. The annular sleeve 30 is a circular structure. The circular structure of the annular sleeve 30 makes it more in line with the existing conventional pipeline shape setting.

[0032] It should be further explained that a sealing sleeve 31 is wrapped on the outer wall surface of the annular sleeve 30, and the inner wall surface of the sealing sleeve 31 is bonded to the outer wall surface of the annular sleeve 30 by resin glue, and the sealing sleeve 31 is made of a water-swelling rubber material. The sealing sleeve 31 is squeezed and inserted into the inner wall of the drainage pipe to achieve sealing during grouting. The sealing sleeve 31 is made of a water-swelling rubber material. When leaking, it can come into contact with the moisture of the slurry to expand and enhance the seal.

[0033] It should be further explained that an external thread 32 is provided on the outer wall surface of the feed pipe 22, and an internal thread 33 is provided on the inner wall surface of the annular sleeve 30. The internal thread 33 and the external thread 32 are butt-jointed and assembled by threads, which can ensure the stable assembly of the annular sleeve 30 and the feed pipe 22 and the convenience of disassembly.

[0034] Working method: When grouting is required for the drainage pipe, first insert the feed pipe 22 used for docking with the drainage pipe into the drainage pipe. Prior to this, first, the annular sleeve 30 with the sealing sleeve 31 is threadedly docked with each other through the external thread 32 and the internal thread 33, so that the annular sleeve 30 and the outer wall of the feed pipe 22 can be fixed. Then, the feed pipe 22 is inserted into the drainage pipe. At this time, the sealing sleeve 31 is squeezed and inserted into the inner wall of the drainage pipe, so as to achieve sealing during grouting. The sealing sleeve 31 is made of water-swellable rubber material. When leaking, it can come into contact with the moisture of the slurry to expand and enhance the seal.

[0035] Then, the slurry can be transported through the discharge channel 12 so that the slurry is delivered into the cylinder 10. At this time, the power of the motor 16 is turned on, and the motor 16 drives the rotating shaft 14 to rotate, so that the spiral protrusion 15 is connected, and cooperates with the discharge channel 12, so that the slurry can be delivered to the lower end of the cylinder 10, and enters the feed pipe 22 through the discharge interface 21 and is discharged into the drainage pipe.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grouting device for repairing a drainage pipe, comprising a horizontally placed cylinder (10), characterized in that: The lower end of the cylinder (10) is conically arranged, the upper end opening of the cylinder (10) is covered with a cylinder cover (11), and the cylinder cover (11) and the cylinder (10) are assembled and fixed by screws, the inner wall of the cylinder (10) is wrapped with a discharge channel (12), and the outer wall surface of the discharge channel (12) and the inner wall surface of the cylinder (10) are welded and fixed to each other, a channel with a circular cross-section is arranged at the center of the discharge channel (12), and the upper end surface of the discharge channel (12) is conically concave, a shaft sleeve (13) is arranged at the center of the cylinder cover (11), the outer wall surface of the shaft sleeve (13) passes through the center of the cylinder cover (11), and the connection position of the two is fixed by welding, the A motor (16) is arranged on the upper end surface of the cylinder cover (11), and the outer wall of the motor (16) is assembled with the cylinder cover (11) through a bracket. A rotating shaft (14) for driving is rotatably arranged inside the motor (16), and one end of the rotating shaft (14) passes through the interior of the motor (16) and extends outward. A spiral protrusion (15) is wound around the surface of the rotating shaft (14), and the spiral protrusion (15) is arranged to pass through the center of the discharge channel (12). A feed interface (17) is arranged at the upper end of one side of the outer wall of the cylinder (10), and the outer wall surface of the feed interface (17) passes through the cylinder wall of the cylinder (10), and the connection between the feed interface (17) and the cylinder (10) is fixed by welding.

2. A grouting device for repairing a drainage pipe according to claim 1, characterized in that: A support leg (20) is fixed on the outer wall surface of the tapered lower end of the cylinder (10), and the support leg (20) is welded and fixed to the outer wall surface of the cylinder (10). The number of the support legs (20) is at least five and they are equidistantly distributed with respect to each other.

3. A grouting device for repairing a drainage pipe according to claim 1, characterized in that: A discharge interface (21) is provided at the center of the conical lower end surface of the cylinder (10), the outer wall surface of the discharge interface (21) passes through the center of the lower end of the cylinder (10), and the connection position of the two is fixed by welding.

4. A grouting device for repairing a drainage pipe according to claim 3, characterized in that: A feeding pipe (22) is provided at the port position of the discharge interface (21), and the end of the feeding pipe (22) and the end of the discharge interface (21) are fixed to each other via a flange.

5. A grouting device for repairing a drainage pipe according to claim 4, characterized in that: An annular sleeve (30) is arranged on the outer wall surface of the other end of the feeding pipe (22), and the annular sleeve (30) is a circular structure.

6. A grouting device for repairing a drainage pipe according to claim 5, characterized in that: The outer wall surface of the annular sleeve (30) is wrapped with a sealing sleeve (31), the inner wall surface of the sealing sleeve (31) is bonded to the outer wall surface of the annular sleeve (30) by resin glue, and the sealing sleeve (31) is made of a water-swellable rubber material.

7. A grouting device for repairing a drainage pipe according to claim 6, characterized in that: The outer wall surface of the feeding pipe (22) is provided with an external thread (32), and the inner wall surface of the annular sleeve (30) is provided with an internal thread (33), and the internal thread (33) and the external thread (32) are butt-jointed and assembled via threads.

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