Non-excavation repairing device for urban drainage pipeline
By designing a trenchless repair device for urban drainage pipes and utilizing hydraulic cylinders and spray glue repair technology, the problems of time-consuming and labor-intensive traditional excavation repairs and high costs of trenchless repairs were solved, achieving a fast and low-impact pipeline repair effect.
Patent Information
- Application Number
- CN202423062579.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-12-12
AI Technical Summary
The traditional excavation method of repairing drainage pipes is time-consuming and labor-intensive, affecting traffic and the environment. Trenchless repair technology has problems such as high construction requirements, high costs, limited repair scope, and noise and vibration impacts.
A trenchless repair device for urban drainage pipes was designed, which includes a supporting device and a repair device. The damaged pipe is supported by a hydraulic cylinder and a pipe-breaking device, and then repaired by spraying glue. The device has a simple structure, is easy to assemble and carry.
It achieves rapid repair of pipelines without excavating the ground, reduces the impact on traffic and the environment, and reduces construction difficulty and cost.
Smart Images

Figure CN223375421U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of municipal engineering, in particular to a trenchless repair device for urban drainage pipelines. Background Art
[0002] Urban drainage networks are essential infrastructure for modern cities, having a global and leading impact on urban economic development. They are the backbone of urban water pollution control, drainage, and flood prevention, and a key indicator of a city's modern status. However, with the rapid advancement of urbanization, urban underground pipelines have become increasingly complex. Traditional methods of excavating and repairing drainage pipes not only disrupt traffic but can also cause environmental damage and inconvenience to citizens' daily lives.
[0003] Traditional excavation repair methods involve extensive earthwork, requiring digging up the ground to expose and repair damaged pipes. This is not only time-consuming and labor-intensive, but can also have serious impacts on the surrounding environment and traffic. Furthermore, many urban drainage pipes are located in busy commercial or residential areas, making excavation and repair significantly disruptive to residents' daily lives and businesses.
[0004] Trenchless repair technology has emerged as a response to this need, gradually replacing traditional excavation repair methods with its unique advantages. Trenchless repair technology involves repairing and replacing existing defective pipelines with minimal or no excavation, ensuring proper operation and extending their service life. This technology has minimal impact on surrounding traffic and the environment, and has a low social cost.
[0005] Although the trenchless technology for urban pipelines has the advantages of reducing ground damage, protecting the environment and traffic, it also has some disadvantages that cannot be ignored. Trenchless laying technologies such as pipe jacking method and shield method have certain requirements for construction geological conditions, and the initial investment is large and the construction period is long. Overall repair technologies such as in-situ solidification method and spiral winding method have high material costs and high technical requirements for construction personnel. Local repair technologies such as point-shaped in-situ solidification method and collar method have the problem of limited repair range and poor effect on larger defects. In addition, the construction process of trenchless technology may generate noise, vibration and odor, which will have a certain impact on the surrounding environment and residents. Therefore, this application proposes a trenchless repair device for urban drainage pipelines. Utility Model Content
[0006] In view of the deficiencies in the prior art, the utility model provides a trenchless repair device for urban drainage pipes, which solves the problems mentioned in the background art.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a trenchless repair device for urban drainage pipes, comprising a supporting device, wherein two supporting devices are provided, one end of one of the supporting devices is fixedly installed with one end of a repair device, two repair devices are fixedly installed, and the two repair devices are fixedly installed between each other, one end of the other supporting device is fixedly connected to the other repair device, and a pipe breaking device is also fixedly installed on the other end of one of the supporting devices, and a plurality of outer protective plates are fixedly installed on the outside of the repair device and the supporting device, and a plurality of movable wheels are provided on any of the outer protective plates.
[0008] As a preferred technical solution of the present invention, the pipe breaking device includes a connecting plate fixedly mounted to the supporting device, one end of several hydraulic cylinders B is fixedly mounted on the upper end surface of the connecting plate, and the other end of any of the hydraulic cylinders B is fixedly mounted with a support plate, and a connecting piece is fixedly mounted between the support plate and the connecting plate.
[0009] As a preferred technical solution of the present invention, any connection between the hydraulic cylinder B and the connecting plate is configured as a steerable connection, and the steering direction of any steerable connection is the same as that of the connecting piece.
[0010] As an optimal technical solution of the present invention, the supporting device includes a fixed block B, a number of spacer plates are fixedly installed on the circumference of the fixed block B, a hydraulic cylinder A is fixedly installed between any two of the spacer plates, an oil inlet and an oil return are provided on any of the hydraulic cylinders A, a support plate is provided on any of the hydraulic cylinders A, and a positioning block B is also fixedly installed on any of the hydraulic cylinders A.
[0011] As an optimal technical solution of the present invention, the repair device includes a fixed block A, a number of spray gun tank bodies are fixedly installed on the outside of the fixed block A, a number of inner protective plates are fixedly installed on the outside of the spray gun tank body, a positioning block A is fixedly installed between any of the inner protective plates, and a spray head is also fixedly installed on the outside of the spray gun tank body.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. This utility model can repair a damaged or collapsed pipe at one time by arranging a repair device and a supporting device. After the pipe-breaking device props up the collapsed pipe, the outer protective plate props up the pipe, and the structural design of this application makes the operation simple.
[0014] 2. The utility model redesigns the structure of the device to make it simple in structure, easy to assemble and convenient to carry. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1It is a three-dimensional diagram of the utility model;
[0016] Figure 2 This is a schematic diagram of the pipe breaking device of the utility model;
[0017] Figure 3 This is a schematic diagram of the support device of the utility model;
[0018] Figure 4 Schematic diagram of the repair device of the present utility model.
[0019] In the picture:
[0020] 1. Outer protective plate; 2. Moving wheel; 3. Connecting parts;
[0021] 5. Repair device; 501. Fixing block A; 502. Positioning block A; 503. Spray gun tank; 504. Inner protective plate; 505. Spray nozzle;
[0022] 6. Support device; 601. Fixed block B; 602. Hydraulic cylinder A; 603. Support plate; 604. Positioning block B; 605. Spacer;
[0023] Pipe breaking device; 401, support plate; 402, hydraulic cylinder B; 403, connecting plate. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example
[0025] See also Figure 1-4 The utility model provides the following technical solutions: a trenchless repair device for urban drainage pipes, including a supporting device 6, two supporting devices 6 are provided, one end of one of the supporting devices 6 is fixedly installed with one end of a repair device 5, two repair devices 5 are fixedly installed, and the two repair devices 5 are fixedly installed between each other, and one end of the other supporting device 6 is fixedly connected to the other repair device 5, and the other end of one of the supporting devices 6 is also fixedly installed with a pipe breaking device 4, and a plurality of outer protective plates 1 are fixedly installed on the outside of the repair device 5 and the supporting device 6, and a plurality of moving wheels 2 are provided on any outer protective plate 1.
[0026] In this embodiment, the support device 6 and the repair device 5 are connected by a connecting rod. The main function of the support device 6 is to support the surrounding pipes after reaching the damaged part of the pipe, and then the repair device 5 sprays glue to repair the damaged part. The main function of providing two repair devices 5 is to facilitate the repair of breakages of different lengths and positions. The pipe breaking device 4 and the support device 6 are connected by a flange connection. After reaching the damaged part of the pipe, the pipe breaking device 4 will open, allowing this device to enter. The outer side of the repair device 5 and the support device 6 are connected by bolts and an outer protective plate 1 is installed. The movable wheel 2 is fixedly installed on the outer protective plate 1 through a rotating shaft.
[0027] Specifically, the pipe breaking device 4 includes a connecting plate 403 fixedly mounted on the supporting device 6. One end of several hydraulic cylinders B402 is fixedly mounted on the upper end surface of the connecting plate 403. The other end of any hydraulic cylinder B402 is fixedly mounted with a support plate 401. A connecting piece 3 is fixedly mounted between the support plate 401 and the connecting plate 403. The connection between any hydraulic cylinder B402 and the connecting plate 403 is configured as a steerable connection, and the steering direction of any steerable connection is the same as that of the connecting piece 3.
[0028] In this embodiment, the connection between the connecting plate 403 and the hydraulic cylinder B402 is a threaded connection, three hydraulic cylinders B402 are provided, the connection between the hydraulic cylinder B402 and the support plate 401 is a bolt connection, and the connection between the connecting member 3 and the support plate 401 and the connecting plate 403 is a bolt connection. The main function of the connecting member 3 is to provide a steering direction for the support plate 401.
[0029] Specifically, the supporting device 6 includes a fixed block B601, and a number of spacer plates 605 are fixedly installed on the side of the fixed block B601. A hydraulic cylinder A602 is fixedly installed between any two spacer plates 605. An oil inlet and an oil return are provided on any hydraulic cylinder A602. A support plate 603 is provided on any hydraulic cylinder A602. A positioning block B604 is also fixedly installed on any hydraulic cylinder A602.
[0030] In this embodiment, the connection between the fixed block B601 and the spacer plate 605 is welded, the connection between the hydraulic cylinder A602 and the spacer plate 605 is bolted, the connection between the support plate 603 and the hydraulic cylinder A602 is bolted, and the connection between the hydraulic cylinder A602 and the positioning block B604 is bolted.
[0031] Specifically, the repair device 5 includes a fixed block A501, a plurality of spray gun tank bodies 503 are fixedly installed on the outside of the fixed block A501, a plurality of inner protective plates 504 are fixedly installed on the outside of the spray gun tank body 503, a positioning block A502 is fixedly installed between any inner protective plates 504, and a nozzle 505 is also fixedly installed on the outside of the spray gun tank body 503.
[0032] In this embodiment, the connection between the fixed block A501 and the spray gun tank body 503 is bolted, the connection between the spray gun tank body 503 and the inner protective plate 504 is bolted, and the connection between the inner protective plate 504 and the positioning block A502 is bolted. The main function of the nozzle 505 installed on the spray gun tank body 503 is to spray onto the pipe wall through the pump installed inside the spray gun tank body 503.
[0033] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A trenchless repair device for urban drainage pipes, comprising a supporting device (6), characterized in that: Two supporting devices (6) are provided, one end of one of the supporting devices (6) is fixedly mounted with one end of a repair device (5), two repair devices (5) are fixedly mounted, and the two repair devices (5) are fixedly mounted between each other, one end of the other supporting device (6) is fixedly connected to the other repair device (5), and the other end of one of the supporting devices (6) is also fixedly mounted with a pipe breaking device (4), and a plurality of outer protective plates (1) are fixedly mounted on the outside of the repair device (5) and the supporting device (6), and a plurality of moving wheels (2) are provided on any of the outer protective plates (1).
2. The trenchless repair device for urban drainage pipes according to claim 1, characterized in that: The pipe breaking device (4) comprises a connecting plate (403) fixedly mounted to the supporting device (6); one end of a plurality of hydraulic cylinders B (402) is fixedly mounted on the upper end surface of the connecting plate (403); a supporting plate (401) is fixedly mounted on the other end of any of the hydraulic cylinders B (402); and a connecting member (3) is fixedly mounted between the supporting plate (401) and the connecting plate (403).
3. The trenchless repair device for urban drainage pipes according to claim 2, characterized in that: Any connection between the hydraulic cylinder B (402) and the connecting plate (403) is configured as a steerable connection, and the steering direction of any steerable connection is the same as that of the connecting member (3).
4. The trenchless repair device for urban drainage pipes according to claim 1, characterized in that: The supporting device (6) includes a fixed block B (601), a plurality of spacer plates (605) are fixedly installed on the circumference of the fixed block B (601), a hydraulic cylinder A (602) is fixedly installed between any two of the spacer plates (605), an oil inlet and an oil return are provided on any of the hydraulic cylinders A (602), a supporting plate (603) is provided on any of the hydraulic cylinders A (602), and a positioning block B (604) is also fixedly installed on any of the hydraulic cylinders A (602).
5. The trenchless repair device for urban drainage pipes according to claim 1, characterized in that: The repair device (5) comprises a fixed block A (501), a plurality of spray gun tank bodies (503) are fixedly mounted on the outside of the fixed block A (501), a plurality of inner layer protective plates (504) are fixedly mounted on the outside of the spray gun tank body (503), a positioning block A (502) is fixedly mounted between any of the inner layer protective plates (504), and a spray head (505) is also fixedly mounted on the outside of the spray gun tank body (503).