Pipeline inspection well

Abstract

The utility model discloses a pipeline inspection well which comprises a concrete pipe with two open ends, and an inspection well cylinder is vertically installed in the middle of the upper surface of the concrete pipe. The concrete pipe and the inspection shaft form a three-way structure, and the inspection shaft is a PE double-wall winding pipe or a PE solid-wall pipe; the inner wall of the concrete pipe is fixedly connected with a plastic lining pipe; the lower end of the inspection shaft is fixedly welded with the plastic lining pipe; a plurality of reinforcing plates are evenly arranged on the outer surface of the inspection shaft along the circumference, one ends of the reinforcing plates are fixedly connected to the outer wall of the inspection shaft, the other ends of the reinforcing plates are connected with the concrete pipe, through holes are formed in the surfaces of the reinforcing plates, and steel bars are inserted into the through holes in a penetrating mode and embedded in the concrete pipe. According to the utility model, the defect that a medium is borne by concrete in the prior art is overcome, and the problem that the concrete pipe and the inspection shaft are corroded by sewage in the pipeline when the pipeline is used for a long time can be effectively avoided on the basis of ensuring the stability of the pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete pipelines, in particular to a pipeline inspection well. Background Art

[0002] At present, the construction of underground and above-ground drainage pipe networks in cities is developing rapidly. As a hybrid hub connecting urban drainage pipe networks, inspection wells are installed and applied in the drainage pipe networks to achieve regular inspection, cleaning and dredging of pipe networks.

[0003] Drainage inspection wells in the prior art are usually made of cement concrete module inspection wells or plastic inspection wells, which are used in conjunction with concrete pipes and plastic pipes. However, the current concrete module inspection wells are usually rigidly connected to the pipes, so they have poor resistance to foundation settlement and are prone to leakage at the interfaces, causing secondary pollution of groundwater. The well chamber and wellbore have poor corrosion resistance, and the construction time during construction and installation is also relatively long, seriously affecting the construction progress. Plastic inspection wells have low strength and are easily broken under stress, posing a risk of secondary pollution to groundwater. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a pipeline inspection well, which overcomes the deficiencies of the prior art and has a reasonable design. On the basis of ensuring the stability of the pipeline itself, it can effectively avoid the problem of sewage in the pipeline causing corrosion to the concrete pipe and the inspection well barrel during long-term use.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A pipeline inspection well, comprising a concrete pipe with openings at both ends, wherein an inspection well barrel is vertically installed in the middle of the upper surface of the concrete pipe; the concrete pipe and the inspection well barrel form a three-way structure, and the inspection well barrel is a PE double-walled winding pipe or a PE solid wall pipe; a plastic liner pipe is fixedly connected to the inner wall of the concrete pipe, and the lower end of the inspection well barrel is welded and fixed to the plastic liner pipe;

[0007] The outer surface of the inspection shaft is evenly provided with a plurality of reinforcing plates along the circumference. The reinforcing plates are plastic plate structures with a thickness greater than 15 mm. One end of the reinforcing plate is fixedly connected to the outer wall of the inspection shaft, and the other end of the reinforcing plate is connected to the concrete pipe. Through holes are opened on the surface of the reinforcing plate, and steel bars are inserted in the through holes. The steel bars are buried in the concrete pipe.

[0008] Preferably, the inspection shaft is a PE double-walled winding pipe, and a socket joint is provided at the upper end of the inspection shaft.

[0009] Preferably, the inspection shaft is a PE solid wall pipe, and a mounting flange is provided at the upper end of the inspection shaft.

[0010] Preferably, the thickness of the plastic liner pipe is 1 / 5-1 / 10 of the thickness of the concrete pipe.

[0011] Preferably, a plurality of raised connection claws are evenly arranged on the outer surface of the plastic liner pipe, and the raised connection claws are in the shape of an inverted truncated cone with a wide outer side and a narrow inner side, and the raised connection claws are fixedly embedded in the concrete pipe.

[0012] Preferably, a plurality of T-shaped plastic rings are evenly arranged on the outer surface of the inspection shaft, and the T-shaped plastic rings are buried in the concrete pipe.

[0013] Preferably, both ends of the concrete pipe are connected to the concrete straight pipe by an F-type socket connection, a tongue-and-groove connection or a socket-and-spigot connection.

[0014] The utility model provides a pipeline inspection well. It has the following beneficial effects: by arranging a plastic liner pipe on the inner wall of a concrete pipe to wrap the inner wall of the concrete pipe, the problem of sewage in the pipeline causing corrosion to the concrete pipe during long-term use is effectively avoided. The inspection well shaft adopts a PE double-walled winding pipe or a PE solid wall pipe structure, and by fixing and welding the lower end of the inspection well shaft with the plastic liner pipe, the position where the inspection well shaft and the concrete pipe are connected can be encapsulated and protected by plastic, thereby effectively avoiding the problem of sewage in the pipeline leaking and corroding at the interface between the inspection well shaft and the concrete pipe. By arranging a reinforcement plate on the outer surface of the inspection well shaft, and passing steel bars through the surface of the reinforcement plate, the steel bars are buried in the concrete pipe, thereby greatly enhancing the bearing capacity of the connection portion between the two pipes, solving the problem that the interface between the concrete pipe and the inspection well shaft in the prior art is easily damaged by the top. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings required for describing the prior art are briefly introduced below.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Description of the numbers in the figure:

[0018] 1. Concrete pipe; 2. Inspection shaft; 3. Plastic lining pipe; 4. Reinforcement plate; 5. T-shaped plastic ring; 6. Raised connecting claw. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention.

[0020] Embodiment 1, as Figure 1As shown, a pipeline inspection well comprises a concrete pipe 1 with openings at both ends, and an inspection well shaft 2 is vertically installed in the middle of the upper surface of the concrete pipe 1; the concrete pipe 1 and the inspection well shaft 2 form a three-way structure, and the inspection well shaft 2 is a PE double-wall winding pipe or a PE solid wall pipe; a plastic liner pipe 3 is fixedly connected to the inner wall of the concrete pipe 1, and the lower end of the inspection well shaft 2 is welded and fixed to the plastic liner pipe 3;

[0021] A plurality of reinforcing plates 4 are evenly arranged along the circumference of the outer surface of the inspection shaft 2. The reinforcing plates 4 are arranged at an acute angle to the inspection shaft 2. The reinforcing plates 4 are plastic plate structures with a thickness greater than 15 mm. One end of the reinforcing plate 4 is fixedly connected to the outer wall of the inspection shaft 2, and the other end of the reinforcing plate 4 is connected to the concrete pipe 1. Through holes are opened on the surface of the reinforcing plate 4, and steel bars are inserted in the through holes. The steel bars are buried in the concrete pipe 1.

[0022] Working principle:

[0023] By arranging a plastic liner tube 3 on the inner wall of the concrete pipe 1, the inner wall of the concrete pipe 1 can be wrapped by the plastic liner tube 3, thereby effectively avoiding the problem of sewage in the pipeline corroding the concrete pipe 1 during long-term use. In addition, the inspection shaft 2 adopts a PE double-walled winding pipe or a PE solid wall pipe structure. During production, the lower end of the inspection shaft 2 is fixedly welded to the plastic liner tube 3, so that the position where the inspection shaft 2 and the concrete pipe 1 are connected can be encapsulated and protected by plastic, thereby effectively avoiding the problem of sewage in the pipeline leaking and corroding at the interface between the inspection shaft 2 and the concrete pipe 1.

[0024] In addition, by arranging a reinforcing plate 4 on the outer surface of the inspection shaft 2, the inspection shaft 2 and the reinforcing plate 4 are connected by hot-melt welding, and the reinforcing plate 4 is arranged approximately every 60 cm according to the circumference of the inspection shaft 2, and two through holes are opened in the concrete part at the lower end of the reinforcing plate 4, and steel bars are inserted in the through holes to strengthen the connection with the concrete; thereby, the reinforcing and fixing effect of the reinforcing plate 4 and the steel bars can greatly enhance the bearing capacity of the connecting part of the two pipes, thereby solving the problem that the interface of the concrete pipe 1 and the inspection shaft 2 in the prior art is easily damaged by the top.

[0025] In addition, the concrete pipe 1 in the utility model can also be a three-section shrimp shell elbow pipe to change the direction of the pipeline, and the inspection shaft 2 is installed on the middle section of the three-section shrimp shell elbow pipe according to the same principle as above. In addition, the inspection shaft 2 in the utility model can also be directly connected in the opposite direction of the existing well according to the same principle as above to be used as a rainwater bottom well.

[0026] Embodiment 2, as a further solution of embodiment 1, the inspection shaft 2 adopts a PE double-walled winding pipe, and a socket joint is provided at the upper end of the inspection shaft 2. The socket joint can be plugged and fixed with the pipe fitting at the upper end of the inspection shaft 2.

[0027] Embodiment 3, as a further solution of embodiment 1, the inspection shaft 2 adopts a PE solid wall pipe, and a mounting flange is provided at the upper end of the inspection shaft 2. The mounting flange is installed and fixed with the pipe fitting at the upper end of the inspection shaft 2.

[0028] Embodiment 4, as a further solution of embodiment 1, considering the problem that the plastic liner pipe 3 and the concrete pipe 1 are separated from each other due to thermal expansion and contraction of the entire pipeline, in this embodiment, the thickness of the plastic liner pipe 3 is 1 / 5-1 / 10 of the thickness of the concrete pipe 1. Therefore, even if the entire pipeline may expand and contract due to thermal expansion and contraction, the difference in thermal expansion between the plastic liner pipe 3 and the concrete layer can be ignored due to the thin wall thickness, thereby ensuring the integrity of the pipe wall.

[0029] Embodiment 5, as a further solution of embodiment 1, a plurality of raised connection claws 6 are evenly arranged on the outer surface of the plastic liner tube 3, and the raised connection claws 6 are inverted truncated cone-shaped structures with wide outside and narrow inside, and the raised connection claws 6 are fixedly embedded in the concrete tube 1. The raised connection claws 6 can resist the impact force during concrete pouring, and the inverted truncated cone-shaped structure can be firmly embedded in the concrete tube 1, thereby preventing the plastic liner tube 3 from falling off.

[0030] Embodiment 6, as a further solution of embodiment 1, a plastic reinforcing plate and a plastic rib are used at the position where the lower end of the inspection shaft 2 is connected to the concrete pipe 1, which can be fixedly embedded in the concrete pipe 1, thereby effectively improving the stability of the mutual connection between the inspection shaft 2 and the concrete pipe 1. In this embodiment, a plurality of T-shaped plastic rings 5 ​​can be evenly arranged on the outer surface of the inspection shaft 2, and the T-shaped plastic rings 5 ​​are buried in the concrete pipe 1. By arranging the T-shaped plastic rings 5 ​​in the circumferential direction of the inspection shaft 2, the T-shaped plastic rings 5 ​​are buried in the concrete pipe 1, thereby achieving the reinforced fixation between the inspection shaft 2 and the concrete pipe 1, and then the bearing capacity of the inspection shaft 2 and the concrete pipe 1 can be further strengthened.

[0031] Embodiment 7, as a further solution of embodiment 1, the two ends of the concrete pipe 1 are respectively connected to the concrete straight pipe by an F-type socket method, a tongue-and-groove connection method or a socket-and-socket connection method. In this embodiment, the socket-and-socket connection method is preferably adopted. Specifically: a plug interface and a socket interface that match the concrete straight pipe under construction are respectively processed at both ends of the concrete pipe 1. The two ends of the concrete pipe 1 are respectively matched with the concrete straight pipe under construction through the plug interface and the socket interface, so that the sealing connection effect between the plug interface and the socket interface can realize the encapsulation and protection of the connected end position of the concrete pipe 1, so as to effectively avoid the problem of sewage in the pipe leaking and corroding the concrete at the pipe interface.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pipeline inspection well, characterized in that: It comprises a concrete pipe (1) with openings at both ends, wherein an inspection shaft (2) is vertically installed in the middle of the upper surface of the concrete pipe (1); the concrete pipe (1) and the inspection shaft (2) form a three-way structure, and the inspection shaft (2) is a PE double-walled winding pipe or a PE solid wall pipe; a plastic liner pipe (3) is fixedly connected to the inner wall of the concrete pipe (1), and the lower end of the inspection shaft (2) is welded and fixed to the plastic liner pipe (3); The outer surface of the inspection shaft (2) is evenly provided with a plurality of reinforcing plates (4) along the circumference. The reinforcing plates (4) are plastic plate structures with a thickness greater than 15 mm. One end of the reinforcing plate (4) is fixedly connected to the outer wall of the inspection shaft (2), and the other end of the reinforcing plate (4) is connected to the concrete pipe (1). A through hole is opened on the surface of the reinforcing plate (4), and steel bars are inserted into the through holes. The steel bars are buried in the concrete pipe (1).

2. A pipeline inspection well according to claim 1, characterized in that: The inspection shaft (2) is a PE double-walled winding pipe, and a socket joint is provided at the upper end of the inspection shaft (2).

3. A pipeline inspection well according to claim 1, characterized in that: The inspection shaft (2) is a PE solid wall pipe, and a mounting flange is provided at the upper end of the inspection shaft (2).

4. A pipeline inspection well according to claim 1, characterized in that: The thickness of the plastic lining pipe (3) is 1 / 5-1 / 10 of the thickness of the concrete pipe (1).

5. The pipeline inspection well according to claim 1, characterized in that: A plurality of raised connection claws (6) are evenly arranged on the outer surface of the plastic liner pipe (3). The raised connection claws (6) are in the shape of an inverted truncated cone with a wide outer side and a narrow inner side. The raised connection claws (6) are fixedly embedded in the concrete pipe (1).

6. A pipeline inspection well according to claim 1, characterized in that: A plurality of T-shaped plastic rings (5) are evenly arranged on the outer surface of the inspection shaft (2), and the T-shaped plastic rings (5) are buried in the concrete pipe (1).

7. The pipeline inspection well according to claim 1, characterized in that: Both ends of the concrete pipe (1) are respectively connected to a concrete straight pipe by an F-type socket connection, a tongue-and-groove connection or a socket-and-spigot connection.

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