A sealed connection structure of a solid drain pipe

Abstract

A solid drain pipe sealing connection structure includes a sealing ring, a first drain pipe and a second drain pipe, the first drain pipe is connected with the second drain pipe on one side, the first drain pipe is provided with a first groove on the tight end, the second drain pipe is provided with a second groove in the expansion end, the first groove is provided with a lock head and a mounting groove, the second groove is provided with an empty groove and a lock head groove, the tight end of the first drain pipe is inserted into the expansion end of the second drain pipe, the lock head is matched in the lock head groove, the sealing ring is mounted in the empty groove, the drain pipe connection has a certain self weight, so that the connection structure is not easy to separate from itself under the impact of water, the sealing ring is added at the connection position, the water flow is prevented from directly impacting the position of the connection structure, the sealing ring in the drain pipe provides sufficient sealing, when connected, only socket connection and fastener installation are needed, that is, the rapidity of socket connection is reserved, and the connection stability and sealing are improved.

Description

Technical Field

[0001] This utility model relates to the field of drainage pipe sealing technology, specifically to a sealing connection structure for a solid drainage pipe. Background Technology

[0002] Water is an indispensable substance for human survival and a vital resource in daily life. Washing, irrigation, and other daily tasks all rely on water. Drainage pipes are an essential component of municipal engineering, industrial production, and agricultural irrigation, playing a crucial role in transporting and distributing industrial and drinking water, as well as collecting, transporting, and discharging industrial wastewater, domestic sewage, and rainwater, effectively ensuring the quality of people's daily lives. In existing technologies, drainage pipes are often connected by bolts mounted on flanges at one end. However, this connection requires manual tightening of multiple bolts using tools, which is cumbersome and inconvenient. When using socket-type installations, existing drainage pipes suffer from poor impact resistance due to their material properties, leading to unstable connections and easy loosening and detachment, resulting in poor sealing. The purpose of this utility model is to provide a sealing connection structure for solid drainage pipes to solve the problems of poor impact resistance and connection stability in existing socket-type drainage pipes. Utility Model Content

[0003] The technical solution provided by this utility model is as follows: A sealing connection structure for a solid drain pipe includes a sealing ring, a first drain pipe, and a second drain pipe. One end of the first drain pipe is connected to the second drain pipe. One end of the first drain pipe is a tight end, and the other end is a wide end. A first groove is provided on the tight end of the first drain pipe. One end of the second drain pipe is an expanded end, and the other end is a normal end. A second groove is provided inside the expanded end of the second drain pipe. A lock head and an installation groove are provided on the first groove. A hollow groove and a lock head groove are provided on the second groove. The tight end of the first drain pipe is inserted into the expanded end of the second drain pipe. The lock head is fitted in the lock head groove. The sealing ring is installed in the hollow groove. The outer wall of the sealing ring is in close contact with the inner wall of the second drain pipe for sealing.

[0004] Furthermore, the lock head includes a guide end, a locking end, and a lock groove. The working surface of the guide end is an inclined surface, the shape of the locking end is rectangular, and the locking end has the lock groove opened inward. The lock head groove includes a round end and a mating groove. The locking end is mated in the mating groove, and the round end is mated in the lock groove.

[0005] Furthermore, a connecting sleeve ring is installed on the outer wall of the connection between the first drain pipe and the second drain pipe. The connecting sleeve ring consists of two identical connecting sleeves, one end of which is the outlet pipe end and the other end is the inlet pipe end. A protrusion is provided on the outer wall of the connecting sleeve, and a first protruding section and a second protruding section are respectively provided at the two ends of the connecting sleeve. A first outer wall groove is provided on the outer wall of the first drain pipe, and a second outer wall groove is provided on the outer wall of the second drain pipe. The first protruding section engages with the first outer wall groove, and the second protruding section engages with the second outer wall groove. Furthermore, sealing grooves are formed at both ends of the connecting sleeve at a distance from the port, and sealing rings are installed within the sealing grooves.

[0006] Furthermore, the inner diameter of the pipe at the tight end is smaller than the inner diameter of the pipe at the normal end.

[0007] Furthermore, the inner diameter from the wide end to the tight end gradually decreases, while the outer diameter from the normal end to the expanded end gradually increases.

[0008] Furthermore, the walls of the first drain pipe and the second drain pipe are solid.

[0009] Furthermore, the wall material of the first drain pipe and the second drain pipe is engineering plastic polyethylene.

[0010] Furthermore, the lengths of the first and second drain pipes are 4 to 5 meters. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a sealed connection structure; Figure 2 This is a schematic diagram of the sealing ring; Figure 3 for Figure 1 A magnified view of part A in the middle; Figure 4 This is a cross-sectional view of the first water pipe; Figure 5 This is a cross-sectional view of the second water pipe; Figure 6 This is a top view of the connecting kit; Figure 7 This is a front view of the connection kit; Figure 8 Side view of the connection kit Figure 9 This is a front view of the connecting ring. Figure 10 This is a side view of the connecting kit ring.

[0012] The beneficial effects of this utility model are as follows: After the socket connection, the initial connection is made through the pipe opening structure of the drain pipe. The pipe wall of the drain pipe is a solid structure, which gives the drain pipe connection a certain self-weight, making the connection structure less likely to detach under the impact of water. At the same time, a sealing ring is installed at the connection position to prevent the water flow from directly impacting the connection structure. After the initial connection is completed, a connecting kit is installed at the connection between the two drain pipes. The connecting kit strengthens the connection and further improves the impact resistance of the connection structure. The sealing ring in the connecting kit and the sealing ring in the drain pipe provide sufficient sealing. During the connection, only the socket connection and fastener installation are required, which retains the speed of the socket connection while improving the connection stability and sealing performance. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. If the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0014] See Figures 1 to 10This utility model provides a sealing connection structure for a solid drain pipe, including a sealing ring 1, a first drain pipe 2, a second drain pipe 3, and a connecting sleeve ring 4. The second drain pipe 3 is connected to one side of the first drain pipe 2. One end of the first drain pipe 2 is a tight end 21, and the other end is a wide end. The tight end 21 has a first groove 23 machined on a lathe, therefore the outer diameter of the tight end 21 is smaller than the outer diameter of the wide end. If the inner diameters of the tight end 21 and the wide end are the same, the wall thickness of the tight end 21 will be too small, reducing its ability to withstand water pressure impact. To avoid a decrease in the impact resistance of the first drain pipe 2 at the connection point, the inner diameter of the tight end 21 is reduced to allow more space and increase the wall thickness of the tight end 21, thus ensuring normal pipe operation. During operation, the wall thickness of the tightening end 21 meets the working standards. A locking head 24 and a mounting groove 25 are provided on the first groove 23. The locking head 24 includes a guide end 241, a locking end 242, and a locking groove 243. The working surface of the guide end 241 is inclined, and one side of the guide end 241 is connected to the locking end 242. When the first drain pipe 2 is connected to the second drain pipe 3, the friction between the locking end 242 and the inner wall of the second drain pipe 3 is smaller when the surface of the guide end 241 is inclined than when the surface of the guide end 241 is flat. Therefore, the working surface of the guide end 241 is set as inclined, and the locking end 242 is rectangular in shape. This shape feature is for better connection with the second drain pipe 2. The water pipes 3 are structurally fitted to ensure a stable connection between the first drain pipe 2 and the second drain pipe 3, enhancing the impact resistance of the connection. The locking end 242 has an inwardly formed locking groove 243, which extends the locking working surface in the connected state, further improving the impact resistance of the connection. The mounting groove 25 is used to install the sealing ring 1. The mounting groove 25 ensures that the sealing ring 1 will not be pulled away from its installation position due to friction when the first drain pipe 2 is connected, preventing leakage caused by misalignment of the sealing ring 1. The outer wall of the sealing ring 1 will fit tightly against the inner wall of the second drain pipe 3, preventing water from passing through the pipe. The assembly gap drain pipe has a second drain pipe 3 with one end being an expansion end 31 and the other end being a normal end. The expansion end 31 has a second groove 33 machined on a lathe, making the inner diameter of the expansion end 31 larger than that of the normal end. If the outer diameter of the expansion end 31 were the same as that of the normal end, the wall thickness of the expansion end 31 would be too small, reducing its ability to withstand water pressure impact. To avoid a decrease in the impact resistance of the second drain pipe 3 at the connection point, the outer diameter of the expansion end 31 is increased to expand more space and increase the wall thickness. When the inner diameter of the pipe is reduced, the outer diameter is increased to ensure the wall thickness meets working standards. The second groove 33 is provided with a stop groove 34 and a hollow groove 35.The locking groove 36 and the abutment groove 34 are used to limit the tight end 21 of the first drain pipe 2 so that the locking head 24 can accurately reach the installation position during installation. The empty groove 35 is used to accommodate the sealing ring 1. The locking groove 36 extends from one end of the empty groove 35. The locking groove 36 includes a round end 361 and a mating groove 362. The round end 361 is arc-shaped, which optimizes the travel path of the locking head 24 when it mates with the locking groove 36, so that the locking head 24 can mate with the locking groove 36 more quickly. The mating groove 362 provides mating space for the locking end 26 of the locking head 24. 2. The tight end 21 of the first drain pipe is inserted into the expanded end 31 of the second drain pipe to form a connection. The wide end of the first drain pipe 2 and the normal end of the second drain pipe 3 have the same structure but different names. A connecting ring 4 is installed outside the connection between the first drain pipe 2 and the second drain pipe 3 to strengthen the entire connection and make the connection more stable. The connecting ring 4 consists of two identical connecting parts 41. A protrusion 42 is provided on the outer wall of each connecting part 41. The two identical connecting parts 41 are bolted together at the protrusion 42 to form the connecting ring. Ring 4, the connecting kit 41 has an outlet pipe end 42 at one end and an inlet pipe end 43 at the other end. Both the outlet pipe end 42 and the inlet pipe end 43 have sealing grooves 44 at a distance from the port. A sealing ring 45 is installed in the sealing groove 44 to prevent external liquid from seeping into the pipe through the assembly gap. Simultaneously, the sealing ring 45 serves as a last-line sealing measure to prevent liquid leakage in the pipe when the sealing ring 1 fails. The outlet pipe end 42 of the connecting kit 41 has a first protruding section 46 with an inner wall radius smaller than the inner wall radius of other sections of the outlet pipe end 42. The inlet pipe end 43 of the connecting kit 41... The port is provided with a second protruding section 47 whose inner wall radius is smaller than that of other sections within the inlet pipe end 43. The outer wall of the first drain pipe 2 is provided with a first outer wall groove 26, and the outer wall of the second drain pipe 3 is provided with a second outer wall groove 37. The first protruding section 46 is used to engage with the first outer wall groove 26 of the first drain pipe 2, and the second protruding section 48 is used to engage with the second outer wall groove 37 of the second drain pipe 3. Based on the above structure, under the impact of water flow, the connecting sleeve ring 4 will experience a tightening force opposite to the impact force in both the axial and radial directions, thus improving the stability of the connection.

[0015] In use, the first drain pipe 2 is moved toward the second drain pipe 3. Using the inclined surface of the guide end 251, the first drain pipe 2 is inserted into the second drain pipe 3. When the movement position reaches the point where the entire lock head 24 can be fully inserted into the lock head groove 36, that is, when the tight end 21 of the first drain pipe 2 abuts against the abutment groove 34, the movement is stopped and moved in the opposite direction to the previous direction. The lock head 24 and the lock head groove 36 are engaged. At this time, the first drain pipe 2 and the second drain pipe 3 are initially connected. The first protruding section 46 and the second protruding section 47 of the connecting kit 41 are engaged with the first outer wall groove 26 and the second outer wall groove 37, respectively. After the two connecting kits 41 are engaged, the protruding parts 44 of the two connecting kits are aligned and fasteners are installed to form the connecting kit ring 4, completing the second step of connection. After the two steps of connection are completed, the first drain pipe 2 and the second drain pipe 3 form a sealed connection.

[0016] Preferably, the inner diameter of the pipe at the tight end 21 is smaller than that at the normal end, so that the inner wall of the normal end can form a protrusion in the water flow impact path outside the inner wall of the tight end 21. The water flow impacts the protrusion, thereby applying an impact force to the first water pipe to stabilize the fit at the connection.

[0017] Preferably, the inner diameter from the wide end to the tight end 21 gradually decreases, and the outer diameter from the normal end to the expanded end 31 gradually increases. This gradual change can avoid the occurrence of cross-sectional structures that cause sudden changes in the cross-sectional area of ​​the first drain pipe 2 and the second drain pipe 3, resulting in stress concentration and a reduction in the overall strength of the first drain pipe 2 and the second drain pipe 3.

[0018] Preferably, the sealing ring 1 is a V-shaped sealing ring. The sealing lip of this type of sealing ring has good mobility and adaptability, which can compensate for large tolerances and angular deviations, and can prevent water from leaking into the empty groove 35.

[0019] Preferably, the walls of the first drain pipe 2 and the second drain pipe 3 are solid walls. Solid walls increase the weight and strength of the first drain pipe 2 and the second drain pipe 3, and can withstand the impact of water flow during normal operation. Solid walls can provide stronger impact resistance at the drain pipe connection points, making the connection points sufficiently stable.

[0020] Preferably, the wall material of the first drain pipe 2 and the second drain pipe 3 is engineering plastic polyethylene. Polyethylene has good water resistance and good impact resistance. Water resistance reduces the possibility of water damaging the pipe during drainage, and impact resistance keeps the pipe in a safe state when facing water pressure.

[0021] Preferably, the lengths of the first drain pipe 2 and the second drain pipe 3 are in the range of 4 to 5 meters. This range of lengths makes transportation and installation more convenient while effectively ensuring the strength of a single drain pipe.

[0022] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. A sealing connection structure for a solid drain pipe, characterized in that: The system includes a sealing ring (1), a first drain pipe (2), and a second drain pipe (3). One end of the first drain pipe (2) is connected to the second drain pipe (3). One end of the first drain pipe (2) is a tight end (21), and the other end is a wide end. A first groove (23) is provided on the outside of the tight end (21) of the first drain pipe (2). One end of the second drain pipe (3) is an expansion end (31), and the other end is a normal end. A second groove (33) is provided inside the expansion end (31) of the second drain pipe (3). A lock head (24) and an installation groove (25) are provided on the first groove (23). A hollow groove (35) and a lock head groove (36) are provided on the second groove (33). The tight end (21) of the first drain pipe is inserted into the expansion end (31) of the second drain pipe. The lock head (24) is fitted in the lock head groove (36). The sealing ring (1) is installed in the hollow groove (35). The outer wall of the sealing ring (1) is in close contact with the inner wall of the second drain pipe (3) for sealing.

2. The sealing connection structure of a solid drain pipe according to claim 1, characterized in that: The lock head (24) includes a guide end (241), a locking end (242) and a lock groove (243). The working surface of the guide end (241) is an inclined surface. The locking end (242) has the lock groove (243) inwardly. The lock head groove (36) includes a round end (361) and a mating groove (362). The locking end (242) is mated in the mating groove (362), and the round end (361) is mated in the lock groove (243).

3. The sealing connection structure of a solid drain pipe according to claim 1, characterized in that: A connecting sleeve ring (4) is installed on the outer wall of the connection between the first drain pipe (2) and the second drain pipe (3). The connecting sleeve ring (4) is composed of two identical connecting sleeves (41). One end of the connecting sleeve (41) is the outlet pipe end (42), and the other end is the inlet pipe end (43). A protrusion (44) is provided on the outer wall of the connecting sleeve (41). A first protruding section (47) and a second protruding section (48) are respectively provided on the two ends of the connecting sleeve (41). A first outer wall groove (26) is provided on the outer wall of the first drain pipe (2), and a second outer wall groove (37) is provided on the outer wall of the second drain pipe (3). The first protruding section (47) engages with the first outer wall groove (26), and the second protruding section (48) engages with the second outer wall groove (37).

4. The sealing connection structure of a solid drain pipe according to claim 3, characterized in that: Both ends of the connecting kit (41) are provided with sealing grooves (45) at a distance from the port, and sealing rings (46) are installed in the sealing grooves (45).

5. The sealing connection structure of a solid drain pipe according to claim 1, characterized in that: The inner diameter of the pipe at the tight end (21) is smaller than the inner diameter of the pipe at the normal end.

6. The sealing connection structure of a solid drain pipe according to claim 1, characterized in that: The inner diameter of the wide end to the tight end (21) gradually decreases, while the outer diameter of the normal end to the expanded end (31) gradually increases.

7. The sealing connection structure of a solid drain pipe according to claim 1, characterized in that: The walls of the first drain pipe (2) and the second drain pipe (3) are solid.

8. The sealing connection structure of a solid drain pipe according to claim 1, characterized in that: The wall material of the first drain pipe (2) and the second drain pipe (3) is engineering plastic polyethylene.

9. The sealing connection structure of a solid drain pipe according to claim 1, characterized in that: The lengths of the first drain pipe (2) and the second drain pipe (3) are 4 to 5 meters.

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