Water supply and drainage pipeline connecting device
By employing a combination design of metal corrugated pipe, flange, and limiting mechanism in the connection of drainage pipes, the problem of fatigue accumulation effect at the corrugated pipe connection is solved, the connection stability and service life are improved, and the applicability is enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JUNAN COUNTY WATER CO
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-21
AI Technical Summary
When existing drainage pipe connection devices are misaligned, parallel, or at an angle, fatigue accumulation effects are prone to occur at the connection between the corrugated pipe and the straight pipe, leading to structural failure and reduced service life.
The design employs a combination of metal bellows, flange, locking mechanism, and limiting mechanism. The flange fastening connection and the limiting mechanism restrict the fluctuation of the bellows, thereby enhancing the connection stability.
It improves the service life of the bellows, enhances the stability and applicability of the connection, and provides a better user experience.
Smart Images

Figure CN224150393U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water supply and drainage pipeline technology, and specifically to a water supply and drainage pipeline connection device. Background Technology
[0002] Drainage pipes are part of a piping system used to remove and transport liquid waste, sewage, or rainwater. Such piping systems are commonly found in buildings, urban infrastructure, roads, and other engineering projects. The main function of drainage pipes is to effectively guide wastewater from one location to another to prevent water accumulation, flooding, and environmental pollution. Existing drainage pipe connections involve installing a gasket between the end of the drainage pipe and a flange, and then using bolts to fasten the flange between the drainage pipes.
[0003] Currently, when drainage pipes are misaligned, parallel, perpendicular, or at an angle, corrugated pipes and straight pipes are often used for connection. Different straight pipes are fixed to the two ends of the corrugated pipe, and finally installed using flanges on the straight pipes. However, using corrugated pipes for drainage causes frequent fluctuations at the connection between the corrugated pipe and the straight pipe. This repeated mechanical fluctuation leads to fatigue accumulation at the connection, and the stress concentration phenomenon continues to intensify. Ultimately, the corrugated pipe experiences structural failure in the connection area, causing it to break at the connection point. This reduces the service life of the corrugated pipe and brings a poor user experience. Utility Model Content
[0004] In view of this, the problem to be solved by this utility model is to provide a water supply and drainage pipe connection device.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a water supply and drainage pipe connection device, including a metal corrugated pipe, a first flange, a second flange, a third flange, a fourth flange, a straight water pipe, a locking mechanism and a limiting mechanism, wherein the first flange is fixed to the end of the metal corrugated pipe and the third flange is fixed to one end of the straight water pipe.
[0006] The second flange is fixed to the other end of the straight water pipe, and the fourth flange is fixed to the end of the drain pipe. The first flange and the second flange are fastened together.
[0007] The third flange and the fourth flange are fastened together by the locking mechanism, which is used to assemble the third flange and the fourth flange together.
[0008] The limiting mechanism is installed on the metal bellows, and the limiting mechanism is set to prevent the metal bellows from having large fluctuations.
[0009] In one embodiment of this application, a first sealing gasket is further included, which is disposed between the first flange and the second flange.
[0010] In one embodiment of this application, a locking member is further included, which passes through the first flange, the first gasket, and the second flange, and the first flange and the second flange are fastened together by the locking member.
[0011] In one embodiment of this application, a second sealing gasket is further included, which is disposed between the third flange and the fourth flange.
[0012] In one embodiment of this application, the locking mechanism includes a connector, a locking block, a bolt, and a nut. The connector passes through the third flange, the second gasket, and the fourth flange. The locking block passes through the connector. The nut is inserted into the connector. The bolt passes through the connector and the locking block. The bolt is threaded onto the nut. The locking block is also locked onto the drain pipe.
[0013] In one embodiment of this application, the connector has a shaped groove, and the nut is inserted into the shaped groove.
[0014] In one embodiment of this application, the connector has a through hole, and the locking block passes through the through hole.
[0015] In one embodiment of this application, the limiting mechanism includes a fixed sleeve, a rubber pad, a clamp, a first connecting rod, a second connecting rod, and a connector. The fixed sleeve is fixedly sleeved on the straight pipe of the metal corrugated pipe, and the rubber pad is fixed inside the fixed sleeve.
[0016] The rubber pad is simultaneously fitted onto both the straight and corrugated sections of the metal corrugated pipe. The clamp is installed on the metal corrugated pipe. One end of the first connecting rod is fixed to the fixed pipe sleeve, and one end of the second connecting rod is fixed to the clamp. The other ends of the first and second connecting rods are inserted into the connector.
[0017] The advantages and positive effects of this utility model are:
[0018] (1) By using a fixed sleeve and rubber pad, the fluctuation range of the metal corrugated pipe on the straight pipe is small, and the limiting mechanism is used to limit the metal corrugated pipe to prevent large fluctuations in the metal corrugated pipe as a whole, thus improving the service life of the metal corrugated pipe.
[0019] (2) Based on the orientation between the drain pipes, it is easy to replace the model of the metal corrugated pipe, making it more applicable and providing users with a better user experience. Attached Figure Description
[0020] 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:
[0021] Figure 1 This is a three-dimensional structural diagram of a water supply and drainage pipe connection device according to the present invention;
[0022] Figure 2 This is a diagram showing the relationship between the drainage pipe, straight water pipe, and metal corrugated pipe of this utility model;
[0023] Figure 3 This is a cross-sectional view of the drainage pipe, straight water pipe, fixed pipe sleeve and rubber pad of this utility model;
[0024] Figure 4 This is a three-dimensional structural diagram of the limiting mechanism of this utility model;
[0025] Figure 5 This is a cross-sectional view of the third flange, the fourth flange, and the second sealing gasket of this utility model;
[0026] Figure 6 This is a utility model Figure 5 A magnified view of region A in the middle.
[0027] In the diagram: 110, metal bellows; 120, first flange; 130, first gasket; 140, second flange; 150, locking element; 160, third flange; 170, second gasket; 180, fourth flange; 190, drain pipe; 191, locking mechanism; 1911, connector; 1912, locking block;
[0028] 1913. Irregular groove; 1914. Bolt; 1915. Nut; 1916. Through hole; 192. Limiting mechanism;
[0029] 1921. Fixed sleeve; 1922. Rubber pad; 1923. Clamp; 1924. First connecting rod;
[0030] 1925, Second connecting rod; 1926, Connector; 193, Straight water pipe. Detailed Implementation
[0031] 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.
[0032] 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.
[0033] 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.
[0034] Please see Figures 1-6 This application provides a technical solution: a water supply and drainage pipe connection device, including a metal corrugated pipe 110, a first flange 120, a second flange 140, a third flange 160, a fourth flange 180, a straight water pipe 193, a locking mechanism 191, and a limiting mechanism 192. The first flange 120 is fixed to the end of the metal corrugated pipe 110, and the third flange 160 is fixed to one end of the straight water pipe 193.
[0035] The second flange 140 is fixed to the other end of the straight water pipe 193, and the fourth flange 180 is fixed to the end of the drain pipe 190. The first flange 120 and the second flange 140 are fastened together. The system also includes a first sealing gasket 130, which is disposed between the first flange 120 and the second flange 140. The first sealing gasket 130 is used to increase the sealing between the first flange 120 and the second flange 140. The system also includes a locking member 150, which passes through the first flange 120, the first sealing gasket 130, and the second flange 140. The first flange 120 and the second flange 140 are fastened together by the locking member 150. In this embodiment, the locking member 150 is a bolt.
[0036] The third flange 160 and the fourth flange 180 are fastened together by a locking mechanism 191. The locking mechanism 191 is used to assemble the third flange 160 and the fourth flange 180 together, and also includes a second sealing gasket 170, which is disposed between the third flange 160 and the fourth flange 180. The second sealing gasket 170 is used to increase the sealing between the third flange 160 and the fourth flange 180. The locking mechanism 191 includes a connector 1911, a locking block 1912, a bolt 1914, and a nut 1915. The connector 1911 also passes through the third flange 160. 0. The second sealing gasket 170 and the fourth flange 180, the locking block 1912 passes through the connector 1911, the nut 1915 is inserted into the connector 1911, the bolt 1914 passes through the connector 1911 and the locking block 1912, the bolt 1914 is threaded on the nut 1915, the locking block 1912 is also locked onto the drain pipe 190, the connector 1911 has a special groove 1913, the nut 1915 is inserted into the special groove 1913, the special groove 1913 is set to prevent the nut 1915 from rotating, the connector 1911 has a through hole 1916, the locking block 1912 passes through the through hole 1916;
[0037] A limiting mechanism 192 is installed on the metal bellows 110. The limiting mechanism 192 is designed to prevent significant fluctuations in the metal bellows 110. The limiting mechanism 192 includes a fixed sleeve 1921, a rubber pad 1922, a clamp 1923, a first connecting rod 1924, a second connecting rod 1925, and a connector 1926. The fixed sleeve 1921 is fixedly fitted onto the straight section of the metal bellows 110. The rubber pad 1922 is fixed inside the fixed sleeve 1921 and fits onto both the straight section and the bellows of the metal bellows 110. The clamp 1923 is installed on the metal bellows 110. The first connecting rod 1924... One end of the first connecting rod 1924 is fixed to the fixed sleeve 1921, and one end of the second connecting rod 1925 is fixed to the clamp 1923. The other ends of the first connecting rod 1924 and the second connecting rod 1925 are inserted into the connector 1926. In this embodiment, the first connecting rod 1924 and the second connecting rod 1925 can be cut, installed, welded or bonded on site. The limiting mechanism 192 is only set to allow the metal corrugated pipe 110 to fluctuate within a small range, that is, there will be no large fluctuations. The connector 1926 can also be selected according to the number of the first connecting rod 1924 and the second connecting rod 1925 (the connector 1926 is similar to the mosquito net connector).
[0038] The working principle and process of this utility model are as follows: In use, based on the orientation of the drain pipes 190 (whether they are misaligned, aligned, parallel, perpendicular, or at a certain angle), a metal corrugated pipe 110 of appropriate length is selected. The metal corrugated pipe 110 is then bent into the corresponding shape. The first flange 120 on the straight section of the metal corrugated pipe 110 is then fastened to the second flange 140 via a locking member 150. A first sealing gasket 130 is placed between the first flange 120 and the second flange 140. Then, the third flange 160 and the fourth flange 180 are aligned, and a second sealing gasket 170 is placed between the third flange 160 and the fourth flange 180. A connector 1911, fitted onto the straight water pipe 193, is passed through the third flange 160, the second sealing gasket 170, and the fourth flange 180, bringing the third flange 160 and the fourth flange 180 together tightly. A locking block 1912 is then passed through the connector 1911, and finally, bolt 1... Bolt 1914 passes through connector 1911 and clamp 1912 in sequence. Then, nut 1915 is tightened to bolt 1914 via threads. Clamp 1923 is then installed onto the metal bellows 110. Finally, the ends of the second connecting rod 1925 and the first connecting rod 1924 are inserted into connector 1926 to limit the movement of the metal bellows 110 and prevent significant fluctuations. The rubber pad 1922 further minimizes the fluctuation range of the metal bellows 110 on the straight pipe above it. This water supply and drainage pipe connection device uses a fixed pipe sleeve 1921 and a rubber pad 1922 to minimize the fluctuation range of the metal corrugated pipe 110 on the straight pipe above it. It also uses a limiting mechanism 192 to limit the metal corrugated pipe 110, preventing large fluctuations in the metal corrugated pipe 110 and improving its service life. In addition, the device facilitates the replacement of the metal corrugated pipe 110 model according to the orientation of the drainage pipes 190, making it more versatile and providing users with a better experience.
[0039] The embodiments of this utility model have been described in detail above, but the content described 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 plumbing coupling device, characterized in that, It includes a metal bellows (110), a first flange (120), a second flange (140), a third flange (160), a fourth flange (180), a straight water pipe (193), a locking mechanism (191), and a limiting mechanism (192). The first flange (120) is fixed to the end of the metal bellows (110), and the third flange (160) is fixed to one end of the straight water pipe (193). The second flange (140) is fixed to the other end of the straight water pipe (193), the fourth flange (180) is fixed to the end of the drain pipe (190), and the first flange (120) and the second flange (140) are fixedly connected. The third flange (160) and the fourth flange (180) are fixedly connected by the locking mechanism (191); The limiting mechanism (192) is installed on the metal bellows (110).
2. A plumbing coupling device according to claim 1, wherein, It also includes a first sealing gasket (130), which is disposed between the first flange (120) and the second flange (140).
3. A plumbing coupling device according to claim 2, wherein, It also includes a locking element (150) that passes through the first flange (120), the first gasket (130), and the second flange (140), and the first flange (120) and the second flange (140) are fixedly connected by the locking element (150).
4. A plumbing coupling device according to claim 1, wherein, It also includes a second sealing gasket (170), which is disposed between the third flange (160) and the fourth flange (180).
5. A plumbing coupling device according to claim 4, wherein, The locking mechanism (191) includes a connector (1911), a locking block (1912), a bolt (1914), and a nut (1915). The connector (1911) passes through the third flange (160), the second gasket (170), and the fourth flange (180). The locking block (1912) passes through the connector (1911). The nut (1915) is inserted into the connector (1911). The bolt (1914) passes through the connector (1911) and the locking block (1912). The bolt (1914) is threaded onto the nut (1915). The locking block (1912) is also locked onto the drain pipe (190).
6. A plumbing coupling device according to claim 5, wherein, The connector (1911) has a groove (1913) and the nut (1915) is inserted into the groove (1913).
7. A plumbing coupling device according to claim 5, wherein, The connector (1911) has a through hole (1916), and the locking block (1912) passes through the through hole (1916).
8. A plumbing coupling device according to claim 1, wherein, The limiting mechanism (192) includes a fixed sleeve (1921), a rubber pad (1922), a clamp (1923), a first connecting rod (1924), a second connecting rod (1925), and a connector (1926). The fixed sleeve (1921) is fixedly sleeved on the straight pipe of the metal corrugated pipe (110), and the rubber pad (1922) is fixed inside the fixed sleeve (1921). The rubber pad (1922) is simultaneously fitted onto the straight pipe and the corrugated pipe of the metal corrugated pipe (110). The clamp (1923) is installed on the metal corrugated pipe (110). One end of the first connecting rod (1924) is fixed on the fixed sleeve (1921). One end of the second connecting rod (1925) is fixed on the clamp (1923). The other ends of the first connecting rod (1924) and the other ends of the second connecting rod (1925) are inserted into the connector (1926).