A plumbing coupling device

Abstract

This utility model relates to the field of water supply and drainage pipeline technology, and in particular to a water supply and drainage pipeline connection device, including a threaded sleeve, with connecting pipes threaded to both ends of the threaded sleeve. A column is vertically fixedly connected to the outer wall of the threaded sleeve, and a connecting plate is fixedly connected to the upper end of the column. A limit groove is formed on the connecting plate, and a limit strip is connected to the two connecting pipes. The limit strip is inserted into the limit groove. In the event of water hammer, the threaded sleeve and connecting pipes can vibrate synchronously, preventing relative rotation and thus preventing loosening of the threaded connection, ensuring the connection effect, further avoiding loosening caused by vibration, and preventing leakage.

Description

Technical Field

[0001] This utility model relates to the field of water supply and drainage pipeline technology, and in particular to a water supply and drainage pipeline connection device. Background Technology

[0002] Water supply and drainage pipelines are a general term for systems of pipes used for water supply and drainage. Water supply pipelines are responsible for delivering clean water to users, and are mostly made of steel pipes, plastic pipes, etc.; drainage pipelines discharge domestic sewage, rainwater, etc., and are commonly made of concrete pipes, HDPE pipes, etc. They are an important part of urban infrastructure, ensuring the lives of residents and the operation of the city, and must have properties such as corrosion resistance and pressure resistance.

[0003] When connecting two water supply and drainage pipes, a threaded connection is typically used for fixation. During operation, first clean any impurities from the pipe ends, ensuring the threads are intact. Then, align the external thread of one pipe with the internal thread of the other and slowly tighten. To enhance sealing, evenly wrap PTFE tape around the threads, ensuring the wrapping direction matches the thread direction. Generally, wrap 5-8 turns, filling the gaps between the threads with the PTFE tape to effectively block water flow, prevent leakage at the connection, and ensure the airtightness of the piping system.

[0004] However, when the water flow velocity in the pipeline is high, such as when a water pump starts or stops, or when a valve suddenly opens or closes, a water hammer effect occurs. The water flow strongly impacts the inner wall of the pipeline and the threaded joints, causing the entire pipeline to vibrate. This continuous vibration gradually weakens the tightening force of the threaded connections, causing the connection between the device and the pipeline to loosen, which in turn leads to leakage. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies that cause water hammer effects, leading to loosening of threaded connections and leakage, and to propose a water supply and drainage pipe connection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a water supply and drainage pipe connection device, including a threaded sleeve, both ends of which are threadedly connected to connecting pipes. A column is vertically fixedly connected to the outer wall of the threaded sleeve, and a connecting plate is fixedly connected to the upper end of the column. A limit groove is opened on the connecting plate, and two connecting pipes are connected to a limit strip, which is inserted into the limit groove.

[0008] Preferably, the connecting mechanism includes an upper fixing part, which is fixed to the connecting pipe by a fixing mechanism. A rectangular connecting sleeve is fixedly connected to the outer wall of the upper fixing part. The lower end of the limiting strip extends into the rectangular connecting sleeve, and the limiting strip is limited by a limiting mechanism.

[0009] Preferably, the limiting mechanism includes a limiting spring, one end of which is fixedly connected to the upper fixed part, and the other end of which is fixedly connected to a connecting ring, which is fixedly connected to the limiting strip.

[0010] Preferably, a push-button part is fixedly connected to the connecting ring.

[0011] Preferably, the limiting spring is a stainless steel limiting spring.

[0012] Preferably, the fixing mechanism includes a lower fixing part, a bolt is provided through the upper fixing part, the bolt passes through the lower fixing part, and a nut is threadedly connected to the lower end of the bolt.

[0013] Preferably, both the upper fixing part and the lower fixing part are arc-shaped structures.

[0014] Preferably, a washer is fitted on the bolt, with one side of the washer abutting against the nut and the other side abutting against the lower fixing part.

[0015] The present invention provides a water supply and drainage pipe connection device with the following advantages: A connecting mechanism connects a limiting strip to a connecting pipe, and the connecting ridge on the limiting strip is inserted into the limiting groove to achieve the connection between the connecting pipe and the threaded sleeve. During water hammer, the threaded sleeve and the connecting pipe vibrate synchronously, preventing relative rotation and thus preventing loosening of the threaded connection, ensuring the connection effect, further avoiding loosening caused by vibration, and preventing leakage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a water supply and drainage pipe connection device proposed in this utility model;

[0017] Figure 2 This is a perspective view of a water supply and drainage pipe connection device proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the threaded sleeve portion of a water supply and drainage pipe connection device proposed in this utility model;

[0019] Figure 4 This utility model proposes a water supply and drainage pipe connection device. Figure 2 Enlarged view of section A in the middle;

[0020] Figure 5 This utility model proposes a water supply and drainage pipe connection device. Figure 3 Enlarged view of section B.

[0021] In the diagram: 1. Connecting pipe; 2. Threaded sleeve; 3. Connecting plate; 4. Column; 5. Upper fixing part; 6. Bolt; 7. Nut; 8. Limiting groove; 9. Lower fixing part; 10. Limiting strip; 11. Pressing part; 12. Limiting spring; 13. Rectangular connecting sleeve; 14. Connecting ring; 15. Gasket. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1: Refer to Figure 1-4 A water supply and drainage pipe connection device includes a threaded sleeve 2, with connecting pipes 1 threadedly connected to both ends of the threaded sleeve 2. A column 4 is vertically fixed to the outer wall of the threaded sleeve 2, and a connecting plate 3 is fixedly connected to the upper end of the column 4. A limiting groove 8 is formed on the connecting plate 3. A limiting strip 10 is connected to the two connecting pipes 1 by a connecting mechanism. The limiting strip 10 is inserted into the limiting groove 8. The limiting strip 10 is connected to the connecting pipe 1 by the connecting mechanism. The connecting ridge 10 on the limiting strip 10 is inserted into the limiting groove 8 to realize the connection between the connecting pipe 1 and the threaded sleeve 2. When water hammer occurs, the threaded sleeve 2 and the connecting pipe 1 can vibrate synchronously to avoid relative rotation, thereby preventing the threaded connection from loosening, ensuring the connection effect, further avoiding loosening problems caused by vibration, and preventing leakage.

[0024] The connecting mechanism includes an upper fixing part 5, which is fixed to the connecting pipe 1 by a fixing mechanism. A rectangular connecting sleeve 13 is fixedly connected to the outer wall of the upper fixing part 5. The lower end of the limiting strip 10 extends into the rectangular connecting sleeve 13. The limiting strip 10 is limited by the limiting mechanism. By adjusting the position of the limiting strip 10 in the rectangular connecting sleeve 13, the upper end of the limiting strip 10 can be disengaged from the limiting groove 8, thereby facilitating the installation and connection of the device.

[0025] The fixing mechanism includes a lower fixing part 9 and an upper fixing part 5 through which a bolt 6 is installed. The bolt 6 passes through the lower fixing part 9 and the lower end of the bolt 6 is threaded with a nut 7. The upper fixing part 9 and the lower fixing part 5 are fixed to the connecting pipe 1 by using the bolt 8 and the nut 7, which will clamp and fix the connecting pipe 1, thereby connecting the rectangular connecting sleeve 13 and the connecting pipe 1 so that they can vibrate together.

[0026] Example 2: Refer to Figure 1-4As another preferred embodiment of this utility model, based on embodiment 1, the limiting mechanism includes a limiting spring 12. The limiting spring 12 is a stainless steel limiting spring, which has strong corrosion resistance and can resist the erosion of water vapor and impurities in the water supply and drainage environment, thus extending its service life. Moreover, it has stable strength and toughness and can maintain elasticity for a long time, ensuring the continuous and effective action on the limiting strip 10. One end of the limiting spring 12 is fixedly connected to the upper fixing part 5, and the other end of the limiting spring 12 is fixedly connected to a connecting ring 14. The connecting ring 14 is fixedly connected to the limiting strip 10. When it is necessary to let the limiting strip 10 get out of the limiting groove 8, the limiting spring 12 needs to be compressed. Under normal conditions, the limiting spring 12 will limit the limiting strip 10 and prevent it from getting out of the limiting groove 8.

[0027] A push part 11 is fixedly connected to the connecting ring 14. The push part 11 can be pressed to drive the connecting ring 14 to move, so that the limit spring 12 is compressed and the limit bar 10 is lowered, so that the limit bar 10 can be inserted into the limit groove 8 for the installation of the device.

[0028] When connecting the pipes, first thread the connecting pipe 1 to the threaded sleeve 2. Then press the actuating part 11 to lower the connecting ring 14, causing the limiting strip 10 to move down synchronously. Place the upper fixing part 5 on the connecting pipe 1, ensuring that the limiting strip 10 is directly below the limiting groove 8. Then release the actuating part 11. Under the restoring force of the limiting spring 12, the limiting strip 10 is inserted into the limiting groove 8. Finally, tighten the bolt 6 and nut 7 to clamp the connecting pipe 1 between the lower fixing part 9 and the upper fixing part 5. When the connecting pipe 1 or the threaded sleeve 2 vibrates due to water hammer, they will move synchronously, avoiding relative rotation, thus ensuring the tightness of the connection between the connecting pipe 1 and the threaded sleeve 2 and preventing leakage.

[0029] Example 3: Reference Figure 1-3 As another preferred embodiment of this utility model, based on embodiment 2, both the upper fixing part 5 and the lower fixing part 9 are arc-shaped structures. The arc-shaped structure can form a tighter fit with the outer wall of the connecting pipe 1, ensuring that the outer surface of the connecting pipe 1 is subjected to uniform force and avoiding deformation or damage due to excessive local force.

[0030] Example 4: Reference Figure 1-5 As another preferred embodiment of this utility model, based on embodiment 3, a washer 15 is provided on the bolt 6. One side of the washer 15 abuts against the nut 7 and the other side abuts against the lower fixing part 9. Both the bolt 6 and the nut 7 are made of stainless steel. The washer 15 enhances the friction, thereby preventing the nut 7 from loosening under vibration and other conditions, and further ensuring the stability of the connection between the nut 7 and the bolt 6.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A water supply and drainage pipe connection device, comprising a threaded sleeve (2), characterized in that, Both ends of the threaded sleeve (2) are threadedly connected to connecting pipes (1). A column (4) is vertically fixedly connected to the outer wall of the threaded sleeve (2). A connecting plate (3) is fixedly connected to the upper end of the column (4). A limiting groove (8) is opened on the connecting plate (3). The two connecting pipes (1) are connected to a limiting strip (10). The limiting strip (10) is inserted into the limiting groove (8).

2. The water supply and drainage pipe connection device according to claim 1, characterized in that, The connecting mechanism includes an upper fixing part (5), which is fixed to the connecting pipe (1) by a fixing mechanism. A rectangular connecting sleeve (13) is fixedly connected to the outer wall of the upper fixing part (5). The lower end of the limiting strip (10) extends into the rectangular connecting sleeve (13), and the limiting strip (10) is limited by the limiting mechanism.

3. A water supply and drainage pipe connection device according to claim 2, characterized in that, The limiting mechanism includes a limiting spring (12), one end of which is fixedly connected to the upper fixing part (5), and the other end of which is fixedly connected to a connecting ring (14), which is fixedly connected to the limiting strip (10).

4. A water supply and drainage pipe connection device according to claim 3, characterized in that, A push part (11) is fixedly connected to the connecting ring (14).

5. A water supply and drainage pipe connection device according to claim 3, characterized in that, The limiting spring (12) is a stainless steel limiting spring.

6. A water supply and drainage pipe connection device according to claim 3, characterized in that, The fixing mechanism includes a lower fixing part (9), and a bolt (6) is provided through the upper fixing part (5). The bolt (6) passes through the lower fixing part (9), and a nut (7) is threaded to the lower end of the bolt (6).

7. A water supply and drainage pipe connection device according to claim 6, characterized in that, Both the upper fixing part (5) and the lower fixing part (9) are arc-shaped structures.

8. A water supply and drainage pipe connection device according to claim 6, characterized in that, A washer (15) is fitted on the bolt (6). One side of the washer (15) abuts against the nut (7) and the other side abuts against the lower fixing part (9).

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