Drain pipe with ventilation function

By designing internal and external flexible connecting pipes, combined with flexible steel wires and silicone sealing gaskets, the problem of difficult alignment during installation of traditional drainage pipes is solved, enabling rapid installation and stable transmission, and improving the performance of drainage pipes.

CN223782321UActive Publication Date: 2026-01-09ZHEJIANG VICPIC PLASTIC IND CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520312719.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-01-09
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

Traditional drainage pipes are prone to misalignment of the ends during connection and installation, resulting in rigid installation and substandard quality. Furthermore, cutting and splicing may affect the quality of the pipes.

Method used

It adopts an inner flexible connecting pipe and an outer flexible connecting pipe, along with flexible tubes and flexible steel wires, to achieve rapid adjustment and alignment connection. Stability and protection are improved by using silicone sealing gaskets, insulation layers and corrosion-resistant outer shells.

Benefits of technology

It enables rapid adaptation to installation deviations, improves the stability and practicality of the device, ensures the stability of liquid transfer, and provides insulation and protection functions.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223782321U_ABST
    Figure CN223782321U_ABST
Patent Text Reader

Abstract

The drainage pipe with the ventilation function comprises a drainage pipe body, the outer side wall of the drainage pipe body communicates with a transmission port, the bottom end of the drainage pipe body communicates with one end of an inner flexible connecting pipe, and an outer flexible connecting pipe is arranged on the outer side wall of the inner flexible connecting pipe; flexible pipes are arranged between the inner side wall of the outer flexible connecting pipe and the outer side wall of the inner flexible connecting pipe at equal intervals, and flexible steel wires are installed on the inner side walls of the flexible pipes. By means of the inner flexible connecting pipe and the outer flexible connecting pipe, in the using process, after one end, which does not conduct exhaust and transmits liquid, of the drainage pipe is in flange connection with the communicating port, the inner flexible connecting pipe and the outer flexible connecting pipe can rapidly adapt to deviation and the like between the inner flexible connecting pipe and the outer flexible connecting pipe; and meanwhile, the inner flexible connecting pipe and the outer flexible connecting pipe have certain strength through the flexible pipe and the flexible steel wire, so that the stability of liquid transmission is guaranteed, and the practicability and stability of the device are improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of drainage pipes, and in particular to a drainage pipe with built-in ventilation. Background Technology

[0002] Drainage pipes are piping systems used for transporting and discharging water, playing a crucial role in construction, municipal engineering, and other fields. Common types include plastic (such as PVC and PE), metal (such as cast iron and stainless steel), and concrete. Plastic drainage pipes are low-cost, lightweight, and corrosion-resistant, making them widely used; metal drainage pipes are high-strength and heat-resistant, but relatively expensive; concrete drainage pipes have good compressive strength and are often used in large-scale drainage projects.

[0003] In existing technologies, traditional pipe connections often result in misalignment at both ends during installation. This necessitates pipe cutting and rejoining to align the two ends, making installation inflexible and difficult. Furthermore, the cutting and rejoining process can lead to substandard pipe quality.

[0004] A search revealed a Chinese patent document that discloses a self-ventilating drainage pipe (publication number: CN213332845U), but it still has the following defects:

[0005] While the aforementioned ventilated drain pipe achieves a structure that integrates ventilation and drainage, eliminating the need for a dedicated ventilation riser and reducing the occupied area, thus effectively saving space, it also avoids errors during the installation of the ventilation pipe and the drain pipe. However, it still has the problem of having a ventilated drain pipe. Utility Model Content

[0006] To address the issues of rigid installation of traditional drainage pipes, which are difficult to operate, and the substandard quality of drainage pipes after cutting and splicing, this application provides a drainage pipe with built-in ventilation.

[0007] The technical solution for the self-ventilating drainage pipe provided in this application is as follows:

[0008] A self-ventilated drain pipe includes a drain pipe with a transmission port connected to its outer side wall. The bottom end of the drain pipe is connected to one end of an inner flexible connecting pipe. An outer flexible connecting pipe is provided on the outer side wall of the inner flexible connecting pipe. Flexible pipes are provided at equal intervals between the inner side wall of the outer flexible connecting pipe and the outer side wall of the inner flexible connecting pipe. Flexible steel wires are installed on the inner side walls of the flexible pipes.

[0009] By adopting the above technical solution, the inner flexible connecting pipe and the outer flexible connecting pipe can be quickly and freely adjusted to accommodate installation deviations.

[0010] Preferably, the outer walls on both sides of the drain pipe are provided with a plurality of first passage cavities, and the inner walls of the first passage cavities are all fitted with silicone sealing gaskets.

[0011] By adopting the above technical solution and using the silicone sealing gasket, the solidified liquid can be squeezed by pressing the silicone sealing gasket during use, thereby facilitating liquid flow.

[0012] Preferably, the outer wall of the drain pipe is attached to the inner wall of the insulation layer, and the outer wall of the insulation layer is attached to the inner wall of the corrosion-resistant outer shell. The insulation layer is made of cotton material, and the insulation layer is installed inside the corrosion-resistant outer shell.

[0013] By adopting the above technical solution, and by setting up a corrosion-resistant outer shell and insulation layer, the drainage pipe can be insulated and protected during use.

[0014] Preferably, the outer wall of the corrosion-resistant outer shell and the insulation layer is provided with a second cavity, which corresponds to the first cavity.

[0015] By adopting the above technical solution, the second passage cavity facilitates pressing the silicone sealing gasket inside the first passage cavity.

[0016] Preferably, a connector sleeve is inserted into the top of the drain pipe, and an abutment plate is installed at the top of the connector sleeve, with the bottom end of the abutment plate abutting against the top of the drain pipe.

[0017] By adopting the above technical solution and using the plug-in sleeve, the contact plate and vent pipe can be quickly connected to the drain pipe during use.

[0018] Preferably, a vent pipe is installed through the top of the contact plate, and the bottom end of the vent pipe is inserted into the top of the drain pipe. The top of the vent pipe has several vent holes.

[0019] By adopting the above technical solution, the gas in the drain pipe is discharged through the vent pipe and the exhaust pipe.

[0020] Preferably, the top of the contact plate is equipped with a hollow plug-in end, the outer wall of the plug-in end is equipped with a balloon block, the balloon block is an inflatable structure, and the outer wall of the plug-in end is provided with exhaust ports at equal intervals.

[0021] By adopting the above technical solution, the plug-in end is inserted into the inside of the connected pipe, and the force generated by the squeezing of the balloon block abuts against the inner wall of the connected pipe, thereby enabling quick connection and fixation with structures such as the intake valve.

[0022] Preferably, the top of the plug-in end is provided with a snap-fit ​​groove, and the bottom of the snap-fit ​​groove is inlaid with a magnetic absorbing piece. The top of the magnetic absorbing piece is magnetically attracted to the bottom of the snap-fit ​​block. The snap-fit ​​block is made of magnetic material and is installed at the bottom of the sealing top cover.

[0023] By adopting the above technical solution, the sealing top cover is snapped onto the top of the plug-in end, thus preventing foreign objects from entering.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By utilizing the inner and outer flexible connecting pipes, during use, after connecting the end of the drain pipe (which does not vent or transport liquid) to the connecting port with a flange, the inner and outer flexible connecting pipes can quickly adapt to deviations. At the same time, the flexible pipes and flexible steel wires give the inner and outer flexible connecting pipes a certain strength, thereby ensuring the stability of liquid transmission and improving the practicality and stability of the device.

[0026] 2. During use, this utility model can quickly perform different exhaust methods. When performing exhaust operations with structures such as intake valves, the plug-in end can be directly inserted into the inside of the connected pipe, and the force generated by the squeezing of the balloon block abuts against the inner wall of the connected pipe, thus enabling quick connection. Furthermore, during self-exhausting operations, the vent pipe can be protected by the top cover, thereby improving the practicality and applicability of the device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the combined component structure of the drain pipe, the first cavity, the silicone sealing gasket, and the second cavity in this utility model.

[0029] Figure 3 For practical purposes Figure 2 Enlarged structural diagram of part A in the diagram;

[0030] Figure 4 This is a schematic diagram of the combined component structure of the outer flexible connecting pipe, the inner flexible connecting pipe, the flexible pipe and the flexible steel wire in this utility model.

[0031] Figure 5 This is a schematic diagram of the combined components of the plug sleeve, contact plate, vent pipe, plug end, balloon block and sealing top cover in this utility model.

[0032] Reference numerals: 1. Drain pipe; 2. First cavity; 3. Silicone gasket; 4. Insulation layer; 5. Corrosion-resistant outer shell; 6. Second cavity; 7. Transmission port; 8. Outer flexible connecting pipe; 9. Inner flexible connecting pipe; 10. Flexible pipe;

[0033] 11. Flexible steel wire; 12. Insert sleeve; 13. Contact plate; 14. Vent pipe; 15. Insert end; 16. Balloon block; 17. Exhaust port; 18. Snap-fit ​​groove; 19. Magnetic suction plate; 20. Sealing top cover. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0035] This application discloses a drainage pipe with built-in ventilation.

[0036] Reference Figure 1 and Figure 4 A self-ventilated drain pipe includes two drain pipes 1. An inner flexible connecting pipe 9 is fixedly connected between the two drain pipes 1 by a flange connecting plate. An outer flexible connecting pipe 8 is provided on the outer side wall of the inner flexible connecting pipe 9 and is fixedly connected to the flange connecting plate. A flexible pipe 10 is fixedly connected between the inner side wall of the outer flexible connecting pipe 8 and the outer side wall of the inner flexible connecting pipe 9. Flexible steel wires 11 are fixedly connected inside the flexible pipes 10.

[0037] With the inner flexible connecting pipe 9 and the outer flexible connecting pipe 8, and then connected to the corresponding connecting ports through two drain pipes 1, the inner flexible connecting pipe 9 and the outer flexible connecting pipe 8 can be freely adjusted during drainage and venting operations, thus quickly adapting to the connecting ports at different positions. After free adjustment, the inner flexible connecting pipe 9 and the outer flexible connecting pipe 8 can be given a certain strength through the flexible pipe 10 and the flexible steel wire 11, thereby ensuring the stability of the device.

[0038] Reference Figures 1-3 One of the drain pipes 1 has a transmission port 7 connected to its outer wall. The other end of the transmission port 7 is fixedly connected to the drain connection port. The outer wall of the drain pipe 1 is fixedly connected to a heat insulation layer 4 made of cotton material. The heat insulation layer 4 is fixedly connected to the inner wall of the corrosion-resistant outer shell 5. The outer wall of the corrosion-resistant outer shell 5 and the heat insulation layer 4 are connected to a second cavity 6. The outer wall of the drain pipe 1 has a first cavity 2 that is opposite to the second cavity 6. The inner wall of the first cavity 2 is fixedly connected to a silicone sealing gasket 3. The outer wall size of the silicone sealing gasket 3 is adapted to the inner wall size of the first cavity 2.

[0039] The insulation layer 4 effectively insulates and protects the drain pipe 1, preventing it from solidifying at low temperatures. The corrosion-resistant outer shell 5 effectively extends the service life of the drain pipe 1. When solidification occurs, the silicone sealing gasket 3 can be pressed to compress the solidified liquid inside the drain pipe 1, thereby effectively improving the solidification and enhancing the connectivity of the drain pipe 1.

[0040] Reference Figure 1 and Figure 5 One of the drain pipes 1 has a plug sleeve 12 fixedly connected to its top end. The plug sleeve 12 is fixedly connected to the bottom end of the contact plate 13. The contact plate 13 is fixedly connected to a vent pipe 14. The bottom end of the vent pipe 14 is inserted into the drain pipe 1. The inner and outer walls of the bottom end of the vent pipe 14 are in contact with the inner wall of the drain pipe 1. The top end of the vent pipe 14 has several vent holes.

[0041] In this way, during use, the vent pipe 14, together with the contact plate 13 and the plug sleeve 12, is inserted into the interior of the drain pipe 1 that needs to be vented, and the venting operation is completed through the vent pipe 14 and the vent hole. This allows the drain pipe 1 to be used flexibly for venting operations. Venting can be done through the vent pipe 14 and the vent hole, and the vent pipe 14 and the contact plate 13 can be quickly disassembled to connect the intake valve and other structures for venting.

[0042] Reference Figure 1 and Figure 5 The top of the contact plate 13 is fixedly connected to the plug end 15 with a circular structure, and the outer wall of the plug end 15 is fixedly connected to the balloon block 16 with an inflatable structure. The balloon block 16 is circular in structure. The outer wall of the plug end 15 is provided with exhaust ports 17 at equal intervals. The top of the plug end 15 is provided with a snap-fit ​​groove 18, and the bottom of the snap-fit ​​groove 18 is inlaid with a magnetic piece 19 with a circular structure. The top of the plug end 15 is snapped with a sealing top cover 20, and the bottom of the sealing top cover 20 is fixedly connected to a snap-fit ​​block with a circular structure. The snap-fit ​​block is made of magnetic material and snaps into the top of the snap-fit ​​groove 18. The bottom of the snap-fit ​​block is magnetically attracted to the top of the magnetic piece 19.

[0043] With the plug-in end 15 provided, during use, when performing exhaust operations with structures such as the intake valve, the plug-in end 15 can be directly inserted into the interior of the connected pipe, and the force generated by the squeezing of the balloon block 16 abuts against the inner wall of the connected pipe, thus enabling quick connection. Furthermore, during self-exhausting operations, the sealing top cover 20 can be snapped into the top of the snap-fit ​​groove 18 by the snap-fit ​​block, and the snap-fit ​​block and the magnetic suction piece 19 magnetically limit the position, thus protecting the vent pipe 14 with the sealing top cover 20 and preventing foreign objects from entering.

[0044] The implementation principle of the self-ventilated drainage pipe in this application embodiment is as follows: First, the device is installed and fixed, and the drainage pipe at the end that does not vent or drain is connected and fixed to the communication port. This allows the inner flexible connecting pipe 9 and the outer flexible connecting pipe 8 to be freely adjustable, thereby quickly adapting to the communication port at different positions. After free adjustment, the inner flexible connecting pipe 9 and the outer flexible connecting pipe 8 can be made to have a certain strength through the flexible pipe 10 and the flexible steel wire 11.

[0045] Secondly, during the operation of drain pipe 1, when the internal liquid flow is obstructed due to low temperature, pressing the silicone sealing gasket 3 can effectively improve the phenomenon of liquid solidification by pressing the solidified liquid inside drain pipe 1.

[0046] Afterwards, when performing exhaust operations with structures such as the intake valve, the plug end 15 can be directly plugged into the inside of the connected pipe, thereby quickly connecting to exhaust through structures such as the intake valve. During self-exhaust operations, the sealing top cover 20 can be snapped onto the top of the vent pipe 14, thereby sealing the vent pipe 14 for protection.

[0047] Finally, the venting operation is completed by using the vent pipe 14 in conjunction with the vent hole, and the liquid transfer operation is carried out by using the transfer port 7. Thus, the self-venting drain pipe is put into use.

[0048] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A drain pipe with built-in ventilation, characterized in that: The system includes a drain pipe (1), the outer wall of which is connected to a transmission port (7), the bottom end of which is connected to one end of an inner flexible connecting pipe (9), and an outer flexible connecting pipe (8) is provided on the outer wall of the inner flexible connecting pipe (9). Flexible pipes (10) are provided at equal intervals between the inner wall of the outer flexible connecting pipe (8) and the outer wall of the inner flexible connecting pipe (9). Flexible steel wires (11) are installed on the inner walls of the flexible pipes (10).

2. The drainage pipe with built-in ventilation according to claim 1, characterized in that: The outer walls of both sides of the drain pipe (1) are provided with a number of first passage cavities (2), and the inner walls of the first passage cavities (2) are all equipped with silicone sealing gaskets (3).

3. A drainage pipe with built-in ventilation according to claim 1, characterized in that: The outer wall of the drain pipe (1) is attached to the inner wall of the insulation layer (4), and the outer wall of the insulation layer (4) is attached to the inner wall of the corrosion-resistant outer shell (5). The insulation layer (4) is made of cotton material and the insulation layer (4) is installed inside the corrosion-resistant outer shell (5).

4. A drainage pipe with built-in ventilation according to claim 3, characterized in that: The outer walls of the corrosion-resistant outer shell (5) and the insulation layer (4) are provided with a second cavity (6), which corresponds to the first cavity (2).

5. A drainage pipe with built-in ventilation according to claim 1, characterized in that: The drain pipe (1) has a plug sleeve (12) inserted at its top end, and a contact plate (13) is installed at the top end of the plug sleeve (12). The bottom end of the contact plate (13) abuts against the top end of the drain pipe (1).

6. A self-ventilating drain pipe according to claim 5, characterized in that: The top of the contact plate (13) is fitted with a vent pipe (14), and the bottom end of the vent pipe (14) is inserted into the top of the drain pipe (1). The top of the vent pipe (14) has several exhaust holes.

7. A self-ventilating drain pipe according to claim 5, characterized in that: The top of the contact plate (13) is equipped with a hollow plug end (15), and a balloon block (16) is installed on the outer wall of the plug end (15). The balloon block (16) is an inflatable structure, and the outer wall of the plug end (15) is provided with exhaust ports (17) at equal intervals.

8. A self-ventilating drain pipe according to claim 7, characterized in that: The top of the plug-in end (15) is provided with a snap-fit ​​groove (18), and a magnetic absorbing piece (19) is embedded in the bottom of the snap-fit ​​groove (18). The top of the magnetic absorbing piece (19) is magnetically attracted to the bottom of the snap-fit ​​block. The snap-fit ​​block is made of magnetic material and is installed at the bottom of the sealing top cover (20).

Citation Information

Patent Citations

  • Drainage pipe with ventilation function

    CN213332845U