PE drain pipe with good sealing property

Abstract

The utility model discloses a PE drain pipe that good sealing, including drain pipe, be provided with the connecting pipe between drain pipe, and the connecting groove is seted up to drain pipe corresponding connecting pipe one end, wherein, the end of connecting pipe corresponding connecting groove is communicated with the extension pipe, and the extension pipe is equidistantly provided with the sealing ring outside in drain pipe location, and the outside fixed connection of drain pipe near the end has the flange, and the connecting frame is seted up between flange, and the sliding slot is seted up to the connecting frame near flange one side symmetry, and the sliding block is seted up in sliding slot, and the lock frame is fixedly connected to the sliding block far from the connecting frame one side. The utility model discloses, when carrying out the connection between drain pipe, through increasing a connecting pipe between drain pipe, and the port of drain pipe is inserted into through the extension pipe of connecting pipe, and the sealing length of drain pipe connection is effectively prolonged through setting multiple sealing rings on the extension pipe, and the quantity of sealing ring is improved, and through this sealing structure, effectively improved the sealing effect when connecting drain pipe.

Description

Technical Field

[0001] This utility model relates to the field of drainage pipe technology, specifically a PE drainage pipe with good sealing performance. Background Technology

[0002] PE is polyethylene plastic, the most basic type of plastic. PE has excellent resistance to most household and industrial chemicals, and features high strength, high temperature resistance, corrosion resistance, non-toxicity, and wear resistance. PE material is often used in the production of drainage pipes.

[0003] Existing PE drainage pipes, although equipped with seals during connection, only have seals at the ends of the pipe connections. While a single seal can achieve a sealing effect, it is poor, and leaks are prone to occur when the water pressure inside the pipe is high. To address this problem, we propose a PE drainage pipe with better sealing performance. Utility Model Content

[0004] The purpose of this utility model is to provide a PE drainage pipe with good sealing performance to solve the problems currently found in the market as mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PE drainage pipe with good sealing performance, comprising drainage pipes, a connecting pipe provided between the drainage pipes, and a connecting groove provided at one end of the drainage pipe corresponding to the connecting pipe, wherein... The end of the connecting pipe corresponding to the connecting groove is connected to an extension pipe. The extension pipe is provided with sealing rings at equal intervals on the outer side inside the drain pipe. The outer side of the drain pipe near the end is fixedly connected to a flange. A connecting frame is provided between the flanges. The connecting frame is provided with sliding grooves symmetrically opened on the side near the flange. A slider is provided in the sliding groove. A locking frame is fixedly connected to the side of the slider away from the connecting frame. The flange has slots at equal intervals. A locking block is fixedly connected to the side of the locking frame corresponding to the slot. A lead screw that is threadedly connected to the slider is rotatably connected in the groove. A screw head is fixedly connected to the end of the lead screw located outside the locking frame. A locking mechanism for locking the lead screw is provided in the middle of the locking frame.

[0006] Preferably, the wall thickness of the drain pipe near the connecting pipe is greater than the wall thickness away from the connecting pipe.

[0007] Preferably, the extension tube is sealed to the inner wall of the connecting groove by a sealing ring.

[0008] Preferably, the lead screw is provided with two opposite external threads, and the two opposite external threads of the lead screw are respectively provided in the sliding grooves on both sides of the connecting frame.

[0009] Preferably, the locking mechanism includes a gear groove, the locking frame has a gear groove on its inner side near the center, the lead screw is fixedly connected to a gear on the outer side of the gear groove, the connecting frame has a locking rod groove on the side near the gear groove, the connecting frame has a pull rod groove on the outer side of the locking rod groove, a locking rod is provided in the locking rod groove, a locking tooth is fixedly connected to the side of the locking rod corresponding to the gear, a pull rod is fixedly connected to one end of the locking rod corresponding to the pull rod groove, and a spring is sleeved on the pull rod between the locking rod and the end of the locking rod groove.

[0010] Preferably, the pitch of the locking teeth is equal to the pitch of the gear teeth.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention addresses the issue of connecting drain pipes by adding a connecting pipe between them. The connecting pipe is inserted into the port of the drain pipe via an extension pipe. By setting multiple sealing rings on the extension pipe, the sealing length of the drain pipe connection is effectively extended, and the number of sealing rings is increased. This sealing structure effectively improves the sealing effect when connecting drain pipes.

[0012] In this invention, when the lead screw needs to rotate, the pull rod drives the locking rod and locking teeth to overcome the spring force and move away from the gear, allowing the lead screw to rotate. After the lead screw has rotated, the pull rod is released, and the spring resets the locking teeth, allowing the locking teeth to mesh with the gear. The meshing of the locking teeth and gear prevents the lead screw from rotating due to vibration, thus locking the lead screw and preventing the connection of the drain pipe from becoming loose.

[0013] In this invention, the wall thickness of the drain pipe near the connecting pipe is greater than that far from the connecting pipe. By increasing the wall thickness at the end of the drain pipe, the strength of the drain pipe connection is effectively improved after the drain pipes are connected, and the resistance to deformation of the drain pipe connection is improved, thereby ensuring the stability of the drain pipe connection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the connecting frame of this utility model; Figure 3 This is a three-dimensional structural diagram of the connecting pipe of this utility model; Figure 4 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0015] In the diagram: 1. Drain pipe; 2. Connecting pipe; 3. Connecting groove; 4. Extension pipe; 5. Sealing ring; 6. Flange; 7. Connecting bracket; 8. Slide groove; 9. Slider; 10. Locking bracket; 11. Slot; 12. Locking block; 13. Lead screw; 14. Screw head; 15. Gear groove; 16. Gear; 17. Locking rod groove; 18. Pull rod groove; 19. Locking rod; 20. Locking tooth; 21. Pull rod; 22. Spring. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1 to 4 This utility model provides a technical solution: a PE drainage pipe with good sealing performance, including drainage pipe 1, a connecting pipe 2 between the drainage pipes 1, and a connecting groove 3 opened at one end of the drainage pipe 1 corresponding to the connecting pipe 2, wherein... The end of the connecting pipe 2 is connected to the end of the connecting groove 3 and the extension pipe 4 is connected to the extension pipe 4. The extension pipe 4 is provided with sealing rings 5 ​​at equal intervals on the outer side inside the drain pipe 1. The outer side of the drain pipe 1 near the end is fixedly connected to the flange 6. The connecting frame 7 is provided between the flanges 6. The connecting frame 7 is provided with symmetrical grooves 8 on the side near the flange 6. The sliding block 9 is provided in the groove 8. A locking frame 10 is fixedly connected to the side of the slider 9 away from the connecting frame 7. The flange 6 has slots 11 at equal intervals. A locking block 12 is fixedly connected to the side of the locking frame 10 corresponding to the slot 11. A screw 13 is rotatably connected to the slider 9 in the slide groove 8. A screw head 14 is fixedly connected to the end of the screw 13 located outside the locking frame 10. A locking mechanism for locking the screw 13 is provided in the middle of the locking frame 10. When connecting drain pipes 1, a connecting pipe 2 is added between drain pipes 1. The connecting pipe 2 is inserted into the port of drain pipe 1 (i.e., connecting groove 3) through an extension pipe 4. By setting multiple sealing rings 5 ​​on the extension pipe 4, the sealing length of the drain pipe 1 connection is effectively extended and the number of sealing rings 5 ​​is increased. Through this sealing structure, the sealing effect of the drain pipe 1 connection is effectively improved.

[0018] Please see Figures 1 to 4The wall thickness of drain pipe 1 near connecting pipe 2 is greater than that away from connecting pipe 2. By increasing the wall thickness at the end of drain pipe 1, the strength of the connection of drain pipe 1 is effectively improved after the connection between drain pipe 1 is completed, and the deformation resistance of the connection of drain pipe 1 is improved, thereby ensuring the stability of the connection of drain pipe 1. Extension pipe 4 is sealed to the inner wall of connecting groove 3 through sealing ring 5. The screw 13 is provided with two opposite external threads, and the two opposite external threads of screw 13 are respectively set in the sliding groove 8 on both sides of connecting frame 7. When the wrench drives screw 13 to rotate through screw head 14, it can drive the two sliders 9 to move closer or further away from each other, thereby driving locking frame 10 to move in opposite directions. When locking frame 10 moves closer to each other, it drives the locking block 12 to insert into the locking groove 11 and tightens the flange 6 of drain pipe 1 on both sides, so that connecting pipe 2 is firmly connected to drain pipe 1 on both sides (after the connection is completed, the opening of sliding groove 8 is sealed with putty to prevent debris from entering the sliding groove 8).

[0019] Please see Figures 1 to 4 The locking mechanism includes a gear groove 15. A gear groove 15 is formed on the inner side of the locking frame 10 near its center. A gear 16 is fixedly connected to the outer side of the lead screw 13 corresponding to the gear groove 15. A locking rod groove 17 is connected to the side of the connecting frame 7 near the gear groove 15. A pull rod groove 18 is connected to the outer side of the connecting frame 7 corresponding to the locking rod groove 17. A locking rod 19 is provided in the locking rod groove 17. A locking tooth 20 is fixedly connected to the side of the locking rod 19 corresponding to the gear 16. A pull rod 21 is fixedly connected to one end of the locking rod 19 corresponding to the pull rod groove 18. The pull rod 21 connects the locking rod 19 to the end of the locking rod groove 17. A spring 22 is fitted on the upper part of the screw 13. The pitch of the locking teeth 20 is equal to that of the gear 16. When the screw 13 needs to rotate, the pull rod 21 drives the locking rod 19 and the locking teeth 20 to overcome the elastic force of the spring 22 and move away from the gear 16, so that the screw 13 can rotate. After the screw 13 has rotated, the pull rod 21 is released, and the spring 22 resets the locking teeth 20, so that the locking teeth 20 meshes with the gear 16. The meshing of the locking teeth 20 and the gear 16 prevents the screw 13 from rotating due to vibration, and can lock the screw 13 to prevent the connection of the drain pipe 1 from becoming loose.

[0020] Working principle: This type of PE drainage pipe with good sealing performance, when connecting drainage pipes 1, adds a connecting pipe 2 between drainage pipes 1. The connecting pipe 2 is inserted into the port of drainage pipe 1 (i.e., connecting groove 3) through an extension pipe 4. By setting multiple sealing rings 5 ​​on the extension pipe 4, the sealing length of the drainage pipe 1 connection is effectively extended and the number of sealing rings 5 ​​is increased. Through this sealing structure, the sealing effect of the drainage pipe 1 connection is effectively improved. By increasing the wall thickness at the end of the drainage pipe 1, the strength of the connection of drainage pipe 1 is effectively improved after the connection of drainage pipes 1 is completed, and the deformation resistance of the connection of drainage pipe 1 is improved, thereby ensuring the stability of the connection of drainage pipe 1. When the wrench drives the lead screw 13 to rotate through the screw head 14, it can drive the two sliders 9 to move closer or further apart, thereby driving the locking frame 10 to move in the opposite direction. When the locking frame 10 moves closer together, it drives the locking block 12 to insert into the locking groove 11 and tightens the flanges 6 of the two drain pipes 1, so that the connecting pipe 2 is firmly connected to the two drain pipes 1. When the lead screw 13 needs to rotate, the pull rod 21 drives the locking rod 19 and locking tooth 20 to overcome the elastic force of the spring 22 and move away from the gear 16, so that the lead screw 13 can rotate. After the lead screw 13 has rotated, the pull rod 21 is released, and the spring 22 resets the locking tooth 20, so that the locking tooth 20 meshes with the gear 16. The meshing of the locking tooth 20 and the gear 16 prevents the lead screw 13 from rotating due to vibration, and can lock the lead screw 13 to prevent the connection of the drain pipe 1 from becoming loose.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PE drain pipe with good sealing property, comprising a drain pipe (1), characterized in that: A connecting pipe (2) is provided between the drain pipes (1), and a connecting groove (3) is provided at one end of the drain pipe (1) corresponding to the connecting pipe (2). The end of the connecting pipe (2) corresponding to the connecting groove (3) is connected to an extension pipe (4). The extension pipe (4) is provided with sealing rings (5) at equal intervals on the outer side of the drain pipe (1). The outer side of the drain pipe (1) near the end is fixedly connected to a flange (6). A connecting frame (7) is provided between the flanges (6). The connecting frame (7) is provided with symmetrical sliding grooves (8) on the side near the flange (6). A slider (9) is provided in the sliding groove (8). A locking frame (10) is fixedly connected to the side of the slider (9) away from the connecting frame (7). The flange (6) has slots (11) evenly spaced. A locking block (12) is fixedly connected to the side of the locking frame (10) corresponding to the slots (11). A screw rod (13) is rotatably connected to the slider (9) in the groove (8). A screw head (14) is fixedly connected to one end of the screw rod (13) outside the locking frame (10). A locking mechanism for locking the screw rod (13) is provided in the middle of the locking frame (10).

2. The PE drain pipe according to claim 1, wherein: The wall thickness of the drain pipe (1) near the connecting pipe (2) is greater than the wall thickness away from the connecting pipe (2).

3. The PE drain pipe according to claim 1, wherein: The extension tube (4) is sealed to the inner wall of the connecting groove (3) by a sealing ring (5).

4. The PE drain pipe according to claim 1, wherein: The lead screw (13) has two opposite external threads, and the two opposite external threads of the lead screw (13) are respectively set in the grooves (8) on both sides of the connecting frame (7).

5. The PE drain pipe according to claim 1, wherein: The locking mechanism includes a gear groove (15). The locking frame (10) has a gear groove (15) on its inner side near the middle. The lead screw (13) is fixedly connected to a gear (16) on the outer side of the gear groove (15). The connecting frame (7) has a locking rod groove (17) on one side near the gear groove (15). The connecting frame (7) has a pull rod groove (18) on the outer side of the locking rod groove (17). A locking rod (19) is provided in the locking rod groove (17). A locking tooth (20) is fixedly connected to one side of the locking rod (19) corresponding to the gear (16). A pull rod (21) is fixedly connected to one end of the locking rod (19) corresponding to the pull rod groove (18). A spring (22) is sleeved on the pull rod (21) between the locking rod (19) and the end of the locking rod groove (17).

6. The PE drain pipe according to claim 5, wherein: The pitch of the locking tooth (20) is equal to the pitch of the gear (16).

Images