PE gas pipe internal liquid discharge device

By designing a double-layer sealing structure in the PE gas pipe and using a float and connecting rod to control the movement of the first and second valve cores, the leakage problem of the existing device when the environment changes or the sealing ring is damaged is solved, and stable discharge and sealing of the accumulated liquid are achieved.

CN224381007UActive Publication Date: 2026-06-19KANGTAI PLASTIC SCI & TECH GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KANGTAI PLASTIC SCI & TECH GRP CO LTD
Filing Date
2025-08-28
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing PE gas pipe liquid drainage devices are prone to leakage when the internal environment of the pipe changes or the sealing ring is damaged, leading to instability.

Method used

A liquid discharge device for PE gas pipes was designed, which adopts a two-layer sealing structure, including a first valve core and a second valve core. Through the cooperation of float ball and connecting rod, a double seal of sealing gasket and sealing ring is achieved, ensuring automatic adjustment of sealing state under different liquid accumulation.

Benefits of technology

It increases the safety and stability of the seal, and can automatically adjust the sealing state under different liquid accumulation levels to prevent air leakage and facilitate the drainage of accumulated liquid.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224381007U_ABST
    Figure CN224381007U_ABST
Patent Text Reader

Abstract

This utility model discloses a device for draining liquid accumulated inside a PE gas pipe, comprising: a PE gas pipe body, a drain pipe connected to the middle of the bottom end of the PE gas pipe body, a partition provided in the middle of the drain pipe, a float ball provided at the top of the drain pipe, a connecting rod connected to the bottom end of the float ball, a first valve core provided in the middle of the connecting rod, a spring provided below the middle of the connecting rod, and the top end of the spring connected to the bottom of the partition; a second valve core, the second valve core being located at the bottom of the connecting rod, a pin provided at the bottom of the connecting rod, a sealing ring provided on the outer side of the second valve core, and a connecting seat connected to the top of the second valve core. This device for draining liquid accumulated inside a PE gas pipe features two layers of sealing, increasing sealing safety, and allowing the first and second valve cores to move synchronously or separately, increasing the isolation and connection of the two layers of sealing, and facilitating the drainage of accumulated liquid.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of PE gas pipe technology, specifically to a device for draining liquid accumulated inside a PE gas pipe. Background Technology

[0002] PE material has a series of advantages such as stability and reliability, impact resistance, crack resistance, aging resistance, and corrosion resistance. It is often used in pipeline production. During the laying of PE gas pipes, the accumulation of liquid inside the pipe may occur due to the influence of terrain or internal factors.

[0003] Most existing liquid drainage devices only have a single-layer drainage valve channel. When the internal environment of the pipeline changes drastically or the sealing ring is damaged, gas leakage may occur, causing instability. Therefore, we propose a liquid drainage device for PE gas pipes to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a liquid discharge device inside a PE gas pipe, in order to solve the problem that most of the liquid discharge devices mentioned in the background art only have a single-layer drainage valve channel, which can lead to gas leakage and instability when the internal environment of the pipe changes drastically or the sealing ring is damaged.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for draining liquid accumulated inside a PE gas pipe, comprising:

[0006] The PE gas pipe body has a drain pipe connected to the middle of its bottom end, and a partition is provided in the middle of the drain pipe. The partition has a drain hole inside. A float ball is provided at the top of the drain pipe, and a connecting rod is connected to the bottom of the float ball. A first valve core is provided in the middle of the connecting rod, and a sealing gasket is connected to the bottom of the first valve core. A spring is provided below the middle of the connecting rod, and the top of the spring is connected to the bottom of the partition. A drain outlet is provided at the bottom of the drain pipe.

[0007] The second valve core is located at the bottom of the connecting rod, and a pin is provided at the bottom of the connecting rod. A sealing ring is provided on the outer side of the second valve core, and a connecting seat is connected to the top of the second valve core.

[0008] Preferably, the connecting rod and the partition form a telescopic structure, and the drainage holes are arranged at equal angles inside the partition with the connecting rod as the center.

[0009] Preferably, the first valve core is engaged with the sealing gasket, and the first valve core is sealed to the drain hole in the partition through the sealing gasket.

[0010] Preferably, the second valve core and the connecting seat are fixedly connected in an integrated structure, and the connecting rod and the second valve core are spaced apart.

[0011] Preferably, the drain outlet has a funnel-shaped structure, and the second valve core is sealed to the drain outlet through a sealing ring.

[0012] Preferably, the connecting seat and the connecting rod form a sliding structure, and the connecting rod is engaged with the connecting seat by a pin.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the liquid discharge device inside the PE gas pipe is equipped with two layers of seals, which increases the sealing safety and allows the first valve core and the second valve core to move synchronously or separately, increasing the isolation and connection of the two layers of seals and facilitating the discharge of liquid.

[0014] 1. A partition is installed in the middle of the drain pipe to separate the drain pipe into two parts, which facilitates the installation of two layers of seal and increases sealing safety;

[0015] 2. A first valve core and a second valve core are provided. The first valve core is sealed to the drain hole in the partition through a sealing gasket, and the second valve core is sealed to the drain outlet through a sealing ring, so that the first valve core and the second valve core form a double seal, which increases the sealing safety.

[0016] 3. A connecting seat and a pin are provided. The connecting rod and the connecting seat form a telescopic structure. The connecting rod is engaged with the connecting seat through the pin. When there is little liquid accumulation in the upper part of the drain pipe, the first valve core can be moved independently by the connecting rod to improve the sealing performance. When there is too much liquid accumulation in the upper part of the drain pipe, the first valve core and the second valve core can be moved synchronously to facilitate the discharge of liquid in the drain pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the half-section structure of this utility model;

[0019] Figure 3 This is a front view sectional view of the drainage pipe of this utility model;

[0020] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. PE gas pipe body; 2. Drain pipe; 3. Baffle plate; 4. Float ball; 5. Connecting rod; 6. First valve core; 7. Drain hole; 8. Sealing gasket; 9. Spring; 10. Second valve core; 11. Sealing ring; 12. Drain outlet; 13. Connecting seat; 14. Pin. 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. 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.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a device for draining liquid inside a PE gas pipe, comprising: a PE gas pipe body 1, a drain pipe 2, a partition 3, a float 4, a connecting rod 5, a first valve core 6, a drain hole 7, a sealing gasket 8, a spring 9, a second valve core 10, a sealing ring 11, a drain outlet 12, a connecting seat 13, and a pin 14.

[0024] The PE gas pipe body 1 has a drain pipe 2 connected to the middle of its bottom end. A partition 3 is provided in the middle of the drain pipe 2, and a drain hole 7 is provided inside the partition 3. A float ball 4 is provided at the top of the drain pipe 2, and a connecting rod 5 is connected to the bottom of the float ball 4. A first valve core 6 is provided in the middle of the connecting rod 5, and a sealing gasket 8 is connected to the bottom of the first valve core 6. A spring 9 is provided below the middle of the connecting rod 5, and the top of the spring 9 is connected to the bottom of the partition 3. A drain outlet 12 is provided at the bottom of the drain pipe 2.

[0025] The second valve core 10 is located at the bottom of the connecting rod 5, and a pin 14 is provided at the bottom of the connecting rod 5. A sealing ring 11 is provided on the outer side of the second valve core 10, and a connecting seat 13 is connected to the top of the second valve core 10.

[0026] like Figure 1 , Figure 2 and Figure 3 The connecting rod 5 and the partition 3 form a telescopic structure, and the drain hole 7 is set at an equal angle with the connecting rod 5 inside the partition 3 to facilitate the discharge of the liquid accumulated on the upper layer of the drain pipe 2. The first valve core 6 is engaged with the sealing gasket 8, and the first valve core 6 is sealed to the drain hole 7 in the partition 3 through the sealing gasket 8 to facilitate the sealing of the first valve channel.

[0027] like Figure 2 , Figure 3 and Figure 4The second valve core 10 is fixedly connected to the connecting seat 13 in an integrated structure, and the connecting rod 5 is spaced apart from the second valve core 10 to increase the flexibility of the second valve core 10. The drain port 12 has a funnel-shaped structure, and the second valve core 10 is sealed to the drain port 12 through the sealing ring 11 to improve the sealing stability. The connecting seat 13 and the connecting rod 5 form a sliding structure, and the connecting rod 5 is engaged with the connecting seat 13 through the pin 14, which facilitates the connecting rod 5 to drive the second valve core 10 to move.

[0028] Working principle: When liquid accumulates in the main body 1 of the PE gas pipe, such as... Figure 3 As shown, the accumulated liquid flows to the top of the drain pipe 2 and collects. When the accumulated liquid at the top of the drain pipe 2 reaches a certain level, it causes the float ball 4 to float upward, which in turn causes the float ball 4 to move the connecting rod 5 upward and compress the spring 9 to store force. At the same time, the connecting rod 5 causes the first valve core 6 to move upward, which causes the sealing gasket 8 to separate from the drain hole 7. This allows the accumulated liquid at the top of the drain pipe 2 to flow to the bottom of the drain pipe 2. Since the bottom of the connecting rod 5 is movably connected to the second valve core 10 through the connecting seat 13, the second valve core 10 is in a relatively stable state, which makes the bottom of the drain pipe 2 in a sealed state, increasing the sealing safety. After the accumulated liquid at the top of the drain pipe 2 is discharged, the first valve core 6 is reset under the action of the spring 9. When the accumulated liquid at the bottom of the drain pipe 2 is full, the accumulated liquid at the top of the drain pipe 2 can drive the float ball 4 to float to a higher position, which causes the connecting rod 5 to move the second valve core 10 upward through the pin 14, which facilitates the opening of the drain outlet 12, thus facilitating the discharge of the accumulated liquid.

[0029] like Figure 3 As shown, when a large amount of liquid suddenly accumulates in the PE gas pipe body 1, the liquid at the top of the drain pipe 2 increases rapidly, and the float ball 4 can float to a higher position, so that the connecting rod 5 can drive the first valve core 6 and the second valve core 10 to move synchronously, accelerating the discharge of the liquid. This is the entire working process of the liquid discharge device inside the PE gas pipe. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A PE gas pipe internal liquid discharge device, characterized by, include: A PE gas pipe body (1) is connected to a drain pipe (2) at the bottom center of the PE gas pipe body (1), and a partition (3) is provided in the middle of the drain pipe (2), and a drain hole (7) is provided inside the partition (3). A float (4) is provided at the top of the drain pipe (2), and a connecting rod (5) is connected at the bottom of the float (4). A first valve core (6) is provided in the middle of the connecting rod (5), and a sealing gasket (8) is connected at the bottom of the first valve core (6). A spring (9) is provided below the middle of the connecting rod (5), and the top of the spring (9) is connected to the bottom of the partition (3). A drain outlet (12) is provided at the bottom of the drain pipe (2). The second valve core (10) is located at the bottom of the connecting rod (5), and the bottom of the connecting rod (5) is provided with a pin (14). A sealing ring (11) is provided on the outside of the second valve core (10), and a connecting seat (13) is connected to the top of the second valve core (10).

2. The PE gas pipe internal liquid discharge device according to claim 1, characterized in that: The connecting rod (5) and the partition (3) form a telescopic structure, and the drainage hole (7) is set at an equal angle with the connecting rod (5) inside the partition (3).

3. The PE gas pipe internal liquid discharge device according to claim 1, characterized in that: The first valve core (6) is engaged with the sealing gasket (8), and the first valve core (6) is sealed to the drain hole (7) in the partition (3) through the sealing gasket (8).

4. The PE gas pipe internal liquid discharge device according to claim 1, characterized in that: The second valve core (10) is fixedly connected to the connecting seat (13) in an integrated structure, and the connecting rod (5) is spaced apart from the second valve core (10).

5. The PE gas pipe internal liquid discharge device according to claim 1, characterized in that: The drain outlet (12) has a funnel-shaped structure, and the second valve core (10) is sealed to the drain outlet (12) through a sealing ring (11).

6. The PE gas pipe internal liquid discharge device according to claim 1, characterized in that: The connecting seat (13) and the connecting rod (5) form a sliding structure, and the connecting rod (5) is engaged with the connecting seat (13) through the pin (14).