Prefabricated rainwater pipe for municipal engineering
By setting a welding structure of steel tubes, pins and metal mesh in the prefabricated rainwater pipes, the problem of insufficient connection stability of the prefabricated rainwater pipes is solved, and the connection reliability and structural strength of the pipes are enhanced.
Patent Information
- Application Number
- CN202422759364.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-13
AI Technical Summary
The existing prefabricated stormwater pipe joints lack stability and lack internal supports, which makes the pipes prone to cracks.
A steel cylinder is set inside the prefabricated concrete pipe as a support, and pouring holes are set on the clamp to facilitate cement injection into the connection. At the same time, pins are welded on the outer surface of the steel cylinder and welded to the internal metal mesh to enhance the reliability of the connection.
The connection stability and structural strength of the prefabricated rainwater pipe are improved, the pipe's anti-extrusion ability is enhanced, and cracks are prevented.
Smart Images
Figure CN223410248U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of rainwater pipes, and in particular relates to a prefabricated rainwater pipe for municipal engineering. Background Art
[0002] Prefabricated stormwater pipes are used to drain rainwater from municipal roads. They are often cast in concrete. However, the joints of cast prefabricated stormwater pipes are directly coated with cement, which makes it difficult for the cement to penetrate the interior of the prefabricated stormwater pipe joints, resulting in insufficient joint stability. Furthermore, the cast prefabricated stormwater pipes lack internal support, making them prone to cracking when squeezed.
[0003] Therefore, a device is designed to facilitate the application of cement to the joints of prefabricated rainwater pipes, while the prefabricated rainwater pipes are supported by steel cylinders. Summary of the Invention
[0004] In order to solve the problems raised in the above background technology, the utility model provides a prefabricated rainwater pipe for municipal engineering.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a prefabricated rainwater pipe for municipal engineering, comprising a prefabricated concrete pipe, a steel cylinder for support being provided inside the prefabricated concrete pipe, a clamp being provided at one end of the prefabricated concrete pipe, a clamping groove being provided at the other end of the prefabricated concrete pipe, and an inner diameter of the clamping groove being 10 mm larger than an outer diameter of the clamping groove, a pouring hole for cement pouring being provided at the upper part of the clamping groove, a pin being welded to the outer surface of the steel cylinder, a metal mesh being provided inside the prefabricated concrete pipe, and the pin and the metal mesh being welded and fixed, and the pin being provided inside the prefabricated concrete pipe.
[0006] As an optimal technical solution for a prefabricated rainwater pipe for municipal engineering of the utility model, the upper parts of the prefabricated concrete pipe and the steel cylinder are both cambered surfaces, and the lower parts of the prefabricated concrete pipe and the steel cylinder are both flat surfaces.
[0007] As an optimal technical solution for a prefabricated rainwater pipe for municipal engineering of the utility model, the pins welded on the outer surface of the steel cylinder are arranged at equal intervals.
[0008] As an optimal technical solution for a prefabricated rainwater pipe for municipal engineering of the present utility model, the metal mesh arranged inside the prefabricated concrete pipe is provided with two layers.
[0009] As an optimal technical solution for a prefabricated rainwater pipe for municipal engineering of the utility model, the width of the clamp is 60 mm wider than the width of the clamping groove.
[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the steel cylinder arranged inside the prefabricated concrete pipe facilitates the support of the prefabricated concrete pipe by the steel cylinder, and the casting hole arranged on the upper part of the clamp facilitates the injection of cement between the clamp and the clamping groove through the casting hole when the two prefabricated concrete pipes are connected end to end, thereby increasing the stability of the connection between the two prefabricated concrete pipes, and the pins welded on the outer surface of the steel cylinder are welded to the metal mesh inside the prefabricated concrete pipe, and the pins are arranged inside the prefabricated concrete pipe, so that the prefabricated concrete pipe is connected to the steel cylinder through the pins and the metal mesh to increase the reliability of the connection, thereby improving the strength of the prefabricated rainwater pipe structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the assembly part of the utility model;
[0014] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;
[0015] Figure 4 This is a schematic diagram of the steel cylinder and pin structure in the utility model;
[0016] In the figure: 1. Precast concrete pipe; 2. Steel cylinder; 3. Clamp; 4. Groove; 5. Casting hole; 6. Pin; 7. Metal mesh. DETAILED DESCRIPTION
[0017] 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.
[0018] Example 1:
[0019] See also Figure 1-4The utility model provides a technical solution: a prefabricated rainwater pipe for municipal engineering, comprising a prefabricated concrete pipe 1, a steel cylinder 2 for support is provided inside the prefabricated concrete pipe 1, a clamp 3 is provided at one end of the prefabricated concrete pipe 1, a clamping groove 4 is provided at the other end of the prefabricated concrete pipe 1, and the inner diameter of the clamp 3 is 10 mm larger than the outer diameter of the clamping groove 4, a pouring hole 5 for cement pouring is provided on the upper part of the clamp 3, a pin 6 is welded on the outer surface of the steel cylinder 2, a metal mesh 7 is provided inside the prefabricated concrete pipe 1, and the pin 6 and the metal mesh 7 are welded and fixed, and the pin 6 is provided inside the prefabricated concrete pipe 1.
[0020] In this embodiment, the steel cylinder 2 provided inside the prefabricated concrete pipe 1 facilitates the support of the prefabricated concrete pipe 1 by the steel cylinder 2, and the casting hole 5 provided on the upper part of the clamp 3 facilitates the injection of cement between the clamp 3 and the clamping groove 4 through the casting hole 5 when the two prefabricated concrete pipes 1 are connected end to end, thereby increasing the stability of the connection between the two prefabricated concrete pipes 1, and the pin 6 welded on the outer surface of the steel cylinder 2 is welded to the metal mesh 7 inside the prefabricated concrete pipe 1. At the same time, the pin 6 is provided inside the prefabricated concrete pipe 1, so that the prefabricated concrete pipe 1 increases the reliability of the connection with the steel cylinder 2 through the pin 6 and the metal mesh 7, thereby improving the strength of the prefabricated rainwater pipe structure.
[0021] Specifically, the upper parts of the prefabricated concrete pipe 1 and the steel cylinder 2 are both cambered surfaces, and the lower parts of the prefabricated concrete pipe 1 and the steel cylinder 2 are both flat surfaces.
[0022] Specifically, the pins 6 welded on the outer surface of the steel cylinder 2 are arranged at equal intervals.
[0023] Specifically, the metal mesh 7 arranged inside the prefabricated concrete pipe 1 is provided with two layers.
[0024] Specifically, the width of the clamp 3 is 60 mm wider than the width of the clamping groove 4 .
[0025] The working principle and usage process of the present invention are as follows: during production, the pins 6 are first welded to the outer surface of the steel cylinder 2, and the two layers of metal mesh 7 are welded and fixed with the pins 6. The prefabricated concrete pipe 1 is poured on the outside of the steel cylinder 2. At this time, the prefabricated concrete pipe 1 is wrapped around the outside of the pin 6 and the metal mesh 7. At this time, a clamp 3 is formed at one end of the prefabricated concrete pipe 1, and a casting hole 5 is provided on the upper part of the clamp 3. A slot 4 is formed at the other end of the prefabricated concrete pipe 1. During the construction of the prefabricated rainwater pipe, the two prefabricated rainwater pipes are connected end to end. At this time, the clamp 3 is sleeved on the outside of the slot 4, and cement is poured into the joint between the clamp 3 and the slot 4 through the casting hole 5.
[0026] 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, improvements, etc. 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 prefabricated rainwater pipe for municipal engineering, comprising a prefabricated concrete pipe (1), characterized in that: A steel cylinder (2) for support is provided inside the precast concrete pipe (1), a clamp (3) is provided at one end of the precast concrete pipe (1), a clamping groove (4) is provided at the other end of the precast concrete pipe (1), and the inner diameter of the clamp (3) is 10 mm larger than the outer diameter of the clamping groove (4), a pouring hole (5) for cement pouring is provided on the upper part of the clamp (3), a pin (6) is welded to the outer surface of the steel cylinder (2), a metal mesh (7) is provided inside the precast concrete pipe (1), and the pin (6) and the metal mesh (7) are welded and fixed, and the pin (6) is provided inside the precast concrete pipe (1).
2. The prefabricated rainwater pipe for municipal engineering according to claim 1, characterized in that: The upper parts of the prefabricated concrete pipe (1) and the steel cylinder (2) are both cambered surfaces, and the lower parts of the prefabricated concrete pipe (1) and the steel cylinder (2) are both flat surfaces.
3. The prefabricated rainwater pipe for municipal engineering according to claim 1, characterized in that: The pins (6) welded on the outer surface of the steel cylinder (2) are arranged at equal intervals.
4. The prefabricated rainwater pipe for municipal engineering according to claim 1, characterized in that: The metal mesh (7) arranged inside the prefabricated concrete pipe (1) is provided with two layers.
5. The prefabricated rainwater pipe for municipal engineering according to claim 1, characterized in that: The width of the clamp (3) is 60 mm wider than the width of the clamping groove (4).