Port protector for a steel socket reinforced concrete drain

CN224814564UActive Publication Date: 2026-09-29TIANJIN ZEBAO CEMENT PROD
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Patent Information

Application Number
CN202522336893.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-04
Publication Date
2026-09-29
Estimated Expiration
2035-11-04

AI Technical Summary

Technical Problem

目前,钢承口钢筋混凝土排水管普遍采用钢承口进行拼装对接,而钢承口作为管道连接的核心受力与密封构件,其结构完整性直接决定了管道对接的精度、密封性及整体承载性能,因此对其完整度提出了严格要求,而钢筋混凝土排水管在被转运的过程中,钢承口常被碰触,易导致钢承口变形,如此后一般需要对钢承口进行整体更换或者对钢承口进行修复,但如此操作较为费时费力,降低了对钢筋混凝土排水管的对接效率,给使用者带来不好的使用体验

Benefits of technology

[0013]本实用新型具有的优点和积极效果是:

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Abstract

The application provides a port protection device for a steel socket reinforced concrete drainage pipe, and belongs to the technical field of drainage pipe port protection equipment. The port protection device for the steel socket reinforced concrete drainage pipe comprises a drainage pipe, a steel ring, a shell, a connecting rod, a clamp, an air bag and an air cock. The steel ring is fixed at one end of the drainage pipe. The shell is sleeved on the steel ring and the drainage pipe. One end of the connecting rod is fixed on the outer wall of the shell. The other end of the connecting rod is fixed on the outer wall of the clamp. The clamp is clamped on the drainage pipe. The port protection device for the steel socket reinforced concrete drainage pipe protects the steel ring by using the shell and the air bag, effectively prevents the steel ring from being touched during the transportation of the drainage pipe, omits the process of replacing or repairing the steel ring, improves the butt joint efficiency between the drainage pipes, and brings better use experience to the user.
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Description

Technical Field

[0001] This utility model relates to the technical field of drainage pipe port protection equipment, specifically to a port protection device for steel-socketed reinforced concrete drainage pipes. Background Technology

[0002] Reinforced concrete drainage pipes are drainage pipes composed of both concrete and steel reinforcement, combining the compressive strength of concrete with the tensile strength of steel. Currently, steel-socketed reinforced concrete drainage pipes commonly use steel sockets for assembly and connection. As the core load-bearing and sealing component of the pipe connection, the structural integrity of the steel socket directly determines the accuracy, sealing performance, and overall load-bearing capacity of the pipe connection. Therefore, strict requirements are placed on its integrity. During transportation, the steel sockets of reinforced concrete drainage pipes are often bumped, which can easily lead to deformation. This usually requires complete replacement or repair of the steel socket, but such operations are time-consuming and labor-intensive, reducing the efficiency of the reinforced concrete drainage pipe connection and resulting in a poor user experience. Utility Model Content

[0003] In view of this, the problem to be solved by this utility model is to provide a port protection device for steel-socketed reinforced concrete drainage pipes.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a port protection device for steel-socket reinforced concrete drainage pipe, including a drainage pipe, a steel ring, a shell, a connecting rod, a clamp, an air bladder and an air nozzle. The steel ring is fixed to one end of the drainage pipe, the shell is sleeved on the steel ring and the drainage pipe, and one end of the connecting rod is fixed to the outer wall of the shell.

[0005] The other end of the connecting rod is fixed to the outer wall of the clamp, the clamp is clamped on the drain pipe, one side of the airbag is fixed to the outer wall of the outer shell, and the air nozzle is installed on the airbag.

[0006] In one embodiment of this application, a plurality of connecting rods are provided, and the plurality of connecting rods are fixed axially at equal intervals to the outer wall of the clamp.

[0007] In one embodiment of this application, a tie bolt is also included, through which the two clamps are fixed together.

[0008] In one embodiment of this application, the clamp has a through hole and a mounting hole, and the threaded rod of the tie bolt passes through the mounting hole.

[0009] In one embodiment of this application, a first storage groove is provided on the outer shell, the steel ring is inserted into the first storage groove, and there is a gap between the outer shell and the steel ring.

[0010] In one embodiment of this application, the airbag is provided with a second storage groove, and the outer shell is inserted into the second storage groove.

[0011] In one embodiment of this application, the inner diameter of the airbag is larger than the inner diameter of the drain pipe, and the inner diameter of the outer shell is also larger than the inner diameter of the drain pipe.

[0012] In one embodiment of this application, the drain pipe has a groove, and the steel ring is engaged in the groove.

[0013] The advantages and positive effects of this utility model are:

[0014] The steel ring is protected by an outer shell and an air bladder, which effectively prevents the steel ring from being touched during the transportation of the drain pipe. This eliminates the need to replace or repair the steel ring, improves the efficiency of connecting drain pipes, and provides users with a better user experience. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the port protection device for steel-socketed reinforced concrete drainage pipes according to this utility model.

[0017] Figure 2 This is a three-dimensional structural diagram of the drainage pipe and steel ring of this utility model;

[0018] Figure 3 This is a diagram showing the relationship between the outer shell, airbag, and clamp of this utility model;

[0019] Figure 4 This is a diagram showing the relationship between the outer shell, connecting rod, and clamp of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the airbag of this utility model;

[0021] Figure 6 This is a diagram showing the relationship between the airbag and the air nozzle of this utility model;

[0022] Figure 7 This is a diagram showing the relationship between the outer shell, connecting rod, clamp, and tie bolt of this utility model.

[0023] In the diagram: 110, drain pipe; 120, steel ring; 130, outer shell; 140, connecting rod; 150, clamp; 160, tie bolt; 170, through hole; 180, airbag; 190, air nozzle; 191, first storage slot; 192, second storage slot; 193, groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please see Figures 1-7 This application provides a technical solution: a port protection device for a steel-socket reinforced concrete drainage pipe, including a drainage pipe 110, a steel ring 120, a shell 130, a connecting rod 140, a clamp 150, an air bladder 180, and an air nozzle 190. The steel ring 120 is fixed to one end of the drainage pipe 110, the shell 130 is sleeved on the steel ring 120 and the drainage pipe 110, and one end of the connecting rod 140 is fixed to the outer wall of the shell 130.

[0028] The other end of the connecting rod 140 is fixed to the outer wall of the clamp 150. Several connecting rods 140 are provided, and these rods are axially equidistantly fixed to the outer wall of the clamp 150. The clamp 150 is secured to the drain pipe 110. It also includes tie bolts 160, with two clamps 150 fixed together by the tie bolts 160. The tie bolts 160 facilitate fixing the clamps 150 to the drain pipe 110. The clamp 150 has a through hole 170 and a mounting hole. The threaded rod of the tie bolt 160 passes through the mounting hole. The through hole 170 reduces the weight of the clamp 150. One side of the airbag 180 is fixed to the outer wall of the outer shell 130. The air nozzle 190 is installed on the airbag 180. The outer shell 130 has a first storage groove 191. The steel ring 120 is inserted into the first storage groove 191. There is a gap between the outer shell 130 and the steel ring 120. The first storage groove 191 provides better protection for the steel ring 120. The airbag 180 has a second storage groove 192. The outer shell 130 is inserted into the second storage groove 192. The airbag 180 can protect the inner and outer surfaces of the outer shell 130. The inner diameter of the airbag 180 is larger than the inner diameter of the drain pipe 110. The inner diameter of the outer shell 130 is also larger than the inner diameter of the drain pipe 110. The drain pipe 110 has a groove 193. The steel ring 120 is engaged in the groove 193.

[0029] Steel-socket reinforced concrete drainage pipes are made of dry-hardened concrete with internal steel reinforcement. The high concrete strength and strong load-bearing capacity allow them to withstand significant soil loads and external pressure. The 110mm joint between drainage pipes typically uses rubber rings, such as O-rings, providing excellent sealing performance and effectively preventing leakage. They adapt to changes in the foundation, avoiding leaks at pipe joints caused by foundation settlement or earthquakes. They are highly adaptable to various soil conditions. The flexible joints allow for small-angle deflection (approximately 1°-2°), exhibiting strong resistance to deformation and facilitating construction. The process is relatively simple, easy to install, and fast to construct, which can greatly shorten the construction period. For example, the D800-40m pipe laying process can be backfilled with sand in just one day using relevant construction methods, while it generally takes at least 7 days for reinforced concrete pipes to be backfilled. It is widely used in rainwater and sewage discharge projects in towns, factories, and residential areas, and can also be used for trenching construction of gravity flow channels for farmland irrigation. It is especially suitable for trenchless (but can also be excavated) construction projects, such as casing projects that cross highways, railways, and buildings, as well as pipeline corridor projects for industries such as power, heat, communication, gas, and water supply.

[0030] The working principle and process of this utility model are as follows: In use, the clamp 150 is fitted onto the drain pipe 110, and the outer shell 130 is fitted onto the steel ring 120. Then, the two clamps 150 are fixed to the drain pipe 110 using tie bolts 160. Next, air is inflated into the airbag 180 using the air nozzle 190, causing the airbag 180 to inflate. The drain pipe 110 can then be transported using a lifting device. The airbag 180 and the outer shell 130 protect the steel ring 120, ensuring the structural integrity of the steel ring 120. If the airbag 180 is damaged, it can be quickly repaired using tape, and then inflated again. After the airbag 180 is inflated and the drain pipe 110 is transported to the designated position, the tie bolt 160 is removed. Then, the outer shell 130 and clamp 150 are removed from the steel ring 120, allowing for the connection between the drain pipes 110. This ensures the accuracy of the connection between the drain pipes 110. This port protection device for steel-socket reinforced concrete drain pipes uses the outer shell 130 and airbag 180 to protect the steel ring 120, effectively preventing the steel ring 120 from being touched during the transport of the drain pipe 110. This eliminates the need to replace or repair the steel ring 120, improves the efficiency of connecting the drain pipes 110, and provides users with a better user experience.

[0031] The embodiments of this utility model have been described in detail above, but the content is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this patent.

Claims

1. A port protection device for steel-socket reinforced concrete drainage pipes, characterized in that, It includes a drain pipe (110), a steel ring (120), a housing (130), a connecting rod (140), a clamp (150), an airbag (180), and an air nozzle (190). The steel ring (120) is fixed to one end of the drain pipe (110), the housing (130) is sleeved on the steel ring (120) and the drain pipe (110), and one end of the connecting rod (140) is fixed to the outer wall of the housing (130). The other end of the connecting rod (140) is fixed to the outer wall of the clamp (150), the clamp (150) is clamped on the drain pipe (110), one side of the airbag (180) is fixed to the outer wall of the outer shell (130), and the air nozzle (190) is installed on the airbag (180).

2. The port protection device for steel-socket reinforced concrete drainage pipes according to claim 1, characterized in that, A plurality of connecting rods (140) are provided, and the plurality of connecting rods (140) are fixed axially at equal intervals on the outer wall of the clamp (150).

3. The port protection device for steel-socket reinforced concrete drainage pipes according to claim 1, characterized in that, It also includes tie bolts (160), by which the two clamps (150) are fixed together.

4. The port protection device for steel-socket reinforced concrete drainage pipes according to claim 3, characterized in that, The clamp (150) has a through hole (170) and an installation hole, and the threaded rod of the tie bolt (160) passes through the installation hole.

5. The port protection device for steel-socket reinforced concrete drainage pipes according to claim 1, characterized in that, The outer shell (130) has a first storage groove (191), and the steel ring (120) is inserted into the first storage groove (191). There is a gap between the outer shell (130) and the steel ring (120).

6. The port protection device for steel-socket reinforced concrete drainage pipes according to claim 1, characterized in that, The airbag (180) has a second storage slot (192), and the outer shell (130) is inserted into the second storage slot (192).

7. The port protection device for steel-socket reinforced concrete drainage pipes according to claim 1, characterized in that, The inner diameter of the airbag (180) is larger than the inner diameter of the drain pipe (110), and the inner diameter of the outer shell (130) is also larger than the inner diameter of the drain pipe (110).

8. The port protection device for steel-socket reinforced concrete drainage pipes according to claim 1, characterized in that, The drain pipe (110) has a groove (193) and the steel ring (120) is engaged in the groove (193).