Anti-leakage corrugated pipe

Abstract

The utility model discloses an anti-leakage corrugated pipe, and relates to the field of pipeline structures, the anti-leakage corrugated pipe comprises a pipe body and a sleeve, the outer ring position of the pipe body is sleeved with a plurality of corrugations, and a first abutting surface is formed on one side of each corrugation; the casing pipe is connected with the pipe bodies, a fixing cavity is formed in the casing pipe, the adjacent pipe bodies are fixed through the fixing cavity, an abutting table is arranged at the position, corresponding to the first abutting face, in the fixing cavity, and a second abutting face is formed on the abutting table; the shape of the first abutting face corresponds to the shape of the second abutting face, the first abutting face and the second abutting face are tightly connected, and the problem of connection water leakage existing in a pipeline in the prior art is solved through connection of the pipe body and the sleeve.

Description

Technical Field

[0001] This utility model relates to the field of pipeline structure, and in particular to a leak-proof corrugated pipe. Background Technology

[0002] Corrugated pipes are widely used in underground pipeline laying and equipment connection projects due to their good axial expansion and contraction performance and ring stiffness. However, the traditional corrugated pipe connection method has long suffered from the following technical bottlenecks: (1) Conventional corrugated pipe connection relies on the simple sleeve and pipe body connection, and some traditional corrugated pipes rely on the mechanical fitting of the corrugations, resulting in insufficient sealing reliability. Since the corrugated structure is mostly regular arc or straight cylinder, when the pipeline is subjected to internal pressure, axial tension or foundation settlement, the connection is prone to gaps due to stress concentration, leading to fluid leakage. Especially in underground humid environments or corrosive media, the risk of sealing failure increases significantly; (2) The contact area between the corrugated boss and the inner wall of the sleeve of the traditional corrugated pipe is limited. Under the impact of high pressure fluid or thermal expansion and contraction, the connection is prone to radial displacement or axial disengagement. Although some designs use adhesive or hot-melt reinforcement, the construction is complicated and the durability is insufficient, which cannot meet the long-term use requirements; (3) The corrugated pipe body lacks an effective reinforcement structure. Under complex geological conditions (such as soft soil foundation and earthquake zone), the pipe body is prone to deformation due to uneven local stress, which further aggravates the risk of leakage at the connection.

[0003] To solve the above-mentioned technical problems, this utility model proposes a leak-proof corrugated pipe. Utility Model Content

[0004] This invention provides a leak-proof corrugated pipe that can solve the problem of water leakage at pipe connections in the prior art.

[0005] A leak-proof corrugated pipe, comprising:

[0006] The tube body has multiple corrugations fitted around its outer ring, and a first contact surface is formed on one side of each corrugation.

[0007] A sleeve is connected to the tube body. A fixing cavity is provided inside the sleeve. The fixing cavity fixes the adjacent tube body. An abutment platform is provided inside the fixing cavity at the position corresponding to the first abutment surface. A second abutment surface is formed on the abutment platform.

[0008] The shape of the first abutting surface corresponds to the shape of the second abutting surface, and a tight connection is formed between the first abutting surface and the second abutting surface.

[0009] Preferably, in this embodiment of the application, the corrugations include:

[0010] An inclined platform is provided at the periphery of the tube body, and the first abutment surface is formed on the side of the inclined platform;

[0011] An abutment portion is disposed on the inclined platform, and the abutment portion is connected to the pipe body through the inclined platform.

[0012] Preferably, in this embodiment of the application, the first contact surface is configured as an inclined surface, and the inclination angle of the inclined surface of the first contact surface is an acute angle of 45° to 85° relative to the direction of the tube axis.

[0013] Preferably, in this embodiment of the application, the second abutting surface is configured as an inclined surface, and the inclination angle of the inclined surface of the second abutting surface is an acute angle of 45° to 85° relative to the direction of the tube axis.

[0014] Preferably, in this embodiment of the application, the abutting part includes a first curved platform and a second curved platform, the first curved platform and the second curved platform are respectively connected to the inclined platform, and a groove is formed between the first curved platform and the second curved platform;

[0015] The sleeve is provided with a fixing part corresponding to the position of the first crank or the second crank, and the fixing part fixes the first crank or the second crank.

[0016] Preferably, in this embodiment of the application, the fixing part includes a fixing ring, and the fixing ring is connected to the first abutting surface;

[0017] The fixing ring has an arc surface corresponding to the position of the first or second crank platform. The outer surfaces of the first and second crank platforms form an arc surface, and the fixing ring is tightly connected to the first or second crank platform through the arc surface.

[0018] Preferably, in this embodiment of the application, an abutment ring is provided on the fixing ring at the position corresponding to the groove, the abutment ring is partially located in the groove, a fixing groove is formed between the abutment ring and the fixing ring, and the first or second curved platform is partially located in the fixing groove.

[0019] Preferably, in this embodiment of the application, the curvature of the fixing groove is the same as the curvature of the first curved platform or the second curved platform. When the two tubes are connected, the first curved platform or the second curved platform is fixed by the fixing groove.

[0020] Preferably, in this embodiment of the application, the corrugations are provided with reinforcing ribs, and the reinforcing ribs connect the pipe body and the abutment portion.

[0021] Preferably, in this embodiment of the application, multiple reinforcing ribs are evenly distributed along the circumference of the corrugations, and each reinforcing rib has a T-shaped cross-section, with its vertical part fused to the outer wall of the tube and its horizontal part embedded inside the abutment part.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. The 45°-85° inclined surfaces of the first and second contact surfaces form a self-tightening rigid seal. Through finite element analysis and pressure testing, it is verified that a wedge effect is generated under axial pressure, which increases the contact stress by more than 35% compared with the traditional 40° inclined surface.

[0024] 2. The fixed ring is tightly connected to the arc surface of the first / second curved platform to form a three-dimensional enveloping seal, completely blocking the radial leakage path;

[0025] 3. The equal arc fit between the fixed groove and the curved platform creates a mechanical self-locking structure when the tubes are connected, allowing for ±4° of deflection displacement without disengaging. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the overall structure of interconnected anti-leakage corrugated pipes provided by this utility model;

[0028] Figure 2 A partially enlarged structural schematic diagram of a leak-proof corrugated pipe provided by this utility model;

[0029] Figure 3 A cross-sectional structural diagram of a leak-proof corrugated pipe provided by this utility model;

[0030] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0031] Figure 5 for Figure 4 The diagram shows a partially enlarged structural schematic of another specific embodiment of the anti-leakage corrugated pipe provided by this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Pipe body; 200. Sleeve; 210. Fixed cavity; 220. Abutment platform; 221. Second abutment surface; 230. Fixed part; 231. Fixed ring; 240. Abutment ring; 250. Fixed groove; 300. Corrugated; 310. Inclined platform; 311. First abutment surface; 321. Abutment part; 3211. First curved platform; 3212. Second curved platform; 3213. Groove; 330. Reinforcing rib. Detailed Implementation

[0034] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0035] like Figures 1 to 5 As shown in the figure, the present invention provides a leak-proof corrugated 300 pipe, including a pipe body 100 and a pipe sleeve. The pipe body 100 and the pipe sleeve are connected to form an integral leak-proof corrugated 300 pipe. Multiple corrugations 300 are arranged in a ring on the pipe body 100. The multiple corrugations 300 are evenly arranged on the pipe body 100. A first abutting surface 311 is formed on one side of the corrugations 300. In this embodiment, the first abutting surface 311 is set as an inclined surface. The sleeve 200 is connected to the pipe body 100. To facilitate the connection, a fixing cavity 210 is provided on the sleeve 200 at a position corresponding to the position of the pipe body 100. The fixing cavity 210 is connected to the pipe body 100. When two corrugated 300 pipes are connected, one of the sleeves 200 is sleeved on the adjacent pipe body 100 to facilitate the connection of the two corrugated 300 pipes. An abutting platform 220 is provided in the fixing cavity 210 at a position corresponding to the position of the first abutting platform 220.

[0036] In this embodiment, the corrugated 300 mainly includes a ramp 310 and an abutment portion 321. The ramp 310 is disposed on the periphery of the pipe body 100, and a first abutment surface 311 is formed on both sides of the ramp 310. The first abutment surface 311 is a ramp, and the inclination angle of the ramp forms an acute angle with the axial direction of the pipe body 100. Specifically, the angle of the acute angle is between 45° and 85°, and this angle is the acute angle of the inclination angle of the ramp of the first abutment surface 311 relative to the axial direction of the pipe body 100. The abutment portion 321 is disposed on the ramp 310 and is firmly connected to the pipe body 100 through the ramp 310. The abutment portion 321 further enhances the connection strength between the corrugated 300 pipes.

[0037] Correspondingly, the second abutment surface 221 on the sleeve 200 is set as an inclined surface. The inclination angle of the inclined surface of the second abutment surface 221 is an acute angle of 45° to 85° relative to the direction of the axis of the tube body 100, so that the shape of the first abutment surface 311 corresponds to the shape of the second abutment surface 221, which facilitates the formation of a tight connection between the first abutment surface 311 and the second abutment surface 221, thereby tightly connecting the two corrugated 300 tubes.

[0038] In this embodiment, the abutment portion 321 mainly includes a first curved platform 3211 and a second curved platform 3212. The curved platform is configured as a bent boss in this embodiment. The first curved platform 3211 and the second curved platform 3212 are respectively connected to the inclined platform 310, forming a groove 3213 between them. This design not only increases the overall strength of the structure but also improves the stability of the connection. Specifically, a fixing portion 230 is provided on the sleeve 200 at a position corresponding to the first curved platform 3211. Correspondingly, a fixing portion 230 can also be provided on the sleeve 200 at a position corresponding to the second curved platform 3212. The function of this fixing portion 230 is to fix the first curved platform 3211, ensuring a more secure connection between the tube body 100 and the adjacent sleeve.

[0039] More specifically, the fixing part 230 is composed of a fixing ring 231, which is tightly connected to the first abutment surface 311. On the fixing ring 231, an arc surface is formed at a position corresponding to the first curved platform 3211. The outer surface of the first curved platform 3211 forms an arc surface, which perfectly fits the outer surface of the first curved platform 3211, forming a three-dimensional enveloping sealing structure. This design not only enhances the stability of the connection but also effectively prevents radial leakage.

[0040] It is worth mentioning that this application also provides another embodiment, in which an abutment ring 240 is provided on the fixing ring 231 at the position corresponding to the groove 3213. This abutment ring 240 is partially located within the groove 3213, forming a fixing groove 250 between it and the fixing ring 231. When the two tubes 100 are connected, the first curved platform 3211 will be partially located within this fixing groove 250, and correspondingly, the second curved platform 3212 can also be partially located within the fixing groove 250. Since the curvature of the fixing groove 250 is exactly the same as the curvature of the first curved platform 3211, they can form a mechanical self-locking structure. When the two tubes 100 are connected, the first curved platform 3211 is fixed by the fixing groove 250. This structure allows the tubes 100 to have a certain deflection displacement during connection without disengaging.

[0041] In addition to the above design, in the second embodiment of this application, the corrugated 300 pipe is further provided with reinforcing ribs 330, which connect the pipe body 100 and the abutment portion 321. These reinforcing ribs 330 are evenly distributed along the circumference of the corrugation 300, and each reinforcing rib 330 has a T-shaped cross-section. Their vertical portions are fused to the outer wall of the pipe body 100, while their horizontal portions are embedded inside the abutment portion 321. This design not only enhances the strength of the corrugated 300 pipe but also improves its resistance to deformation.

[0042] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A leak-proof corrugated pipe, characterized in that, include: The tube body has multiple corrugations fitted around its outer ring, and a first contact surface is formed on one side of each corrugation. A sleeve is connected to the tube body. A fixing cavity is provided inside the sleeve. The fixing cavity fixes the adjacent tube body. An abutment platform is provided inside the fixing cavity at the position corresponding to the first abutment surface. A second abutment surface is formed on the abutment platform. The shape of the first abutting surface corresponds to the shape of the second abutting surface, and a tight connection is formed between the first abutting surface and the second abutting surface.

2. The leak-proof corrugated pipe as described in claim 1, characterized in that, The ripples include: An inclined platform is provided at the periphery of the tube body, and the first abutment surface is formed on the side of the inclined platform; An abutment portion is disposed on the inclined platform, and the abutment portion is connected to the pipe body through the inclined platform.

3. A leak-proof corrugated pipe as described in claim 2, characterized in that, The first contact surface is set as an inclined surface, and the inclination angle of the first contact surface relative to the acute angle of the direction of the tube axis is 45° to 85°.

4. A leak-proof corrugated pipe as described in claim 3, characterized in that, The second contact surface is set as an inclined surface, and the inclination angle of the inclined surface of the second contact surface is an acute angle of 45° to 85° relative to the direction of the tube axis.

5. A leak-proof corrugated pipe as described in claim 2, characterized in that, The abutting part includes a first curved platform and a second curved platform, the first curved platform and the second curved platform are respectively connected to the inclined platform, and a groove is formed between the first curved platform and the second curved platform; The sleeve is provided with a fixing part corresponding to the position of the first crank or the second crank, and the fixing part fixes the first crank or the second crank.

6. A leak-proof corrugated pipe as described in claim 5, characterized in that, The fixing part includes a fixing ring, which is connected to the first abutting surface; The fixing ring has an arc surface corresponding to the position of the first or second crank platform. The outer surfaces of the first and second crank platforms form an arc surface, and the fixing ring is tightly connected to the first or second crank platform through the arc surface.

7. A leak-proof corrugated pipe as described in claim 6, characterized in that, An abutment ring is provided on the fixing ring at the position corresponding to the groove. The abutment ring is located in the groove, and a fixing groove is formed between the abutment ring and the fixing ring. The first or second curved platform is located in the fixing groove.

8. A leak-proof corrugated pipe as described in claim 7, characterized in that, The curvature of the fixing groove is the same as that of the first curved platform or the second curved platform. When the two tubes are connected, the first curved platform or the second curved platform is fixed by the fixing groove.

9. A leak-proof corrugated pipe as described in claim 2, characterized in that, The corrugations are provided with reinforcing ribs, which connect the pipe body and the abutment portion.

10. A leak-proof corrugated pipe as described in claim 9, characterized in that, The reinforcing ribs are evenly distributed in multiples along the circumference of the corrugations, and each reinforcing rib has a T-shaped cross-section. Its vertical part is fused to the outer wall of the tube, and its horizontal part is embedded in the interior of the abutment part.

Images