Vertical odor-proof valve

By designing a self-closing sealing structure for the vertical dry odor-proof valve, the problems of small inlet diameter, slow flow rate, and high resistance of existing vertical odor-proof valves have been solved, realizing the functions of large flow rate rapid passage and automatic shut-off, and is suitable for multi-temperature environments.

CN116005777BActive Publication Date: 2026-04-03张爱民
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-28
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Most existing vertical odor-proof valves are wet-type designs, with small water inlet diameters, slow flow rates, and high resistance, which cannot meet the requirements for the passage of large flow rates and antifreeze.

Method used

A vertical dry odor-proof valve was designed, which adopts a sealing structure in which the two halves of the valve body fit together by themselves. Combined with the outer sleeve and sealing ring, it achieves double sealing on both the vertical and horizontal surfaces. The water inlet diameter of the valve body is larger than that of the guide pipe. When the water flow opens the valve body, it automatically closes. The guide pipe prevents sewage from overflowing.

Benefits of technology

It enables the rapid passage of large flow rates of fluid, with high flow velocity and low resistance, making it suitable for indoor and outdoor environments with varying temperatures. It also features an automatic shut-off function to prevent obstruction of the valve body.

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Patent Text Reader

Abstract

This invention is a vertical odor-proof valve that utilizes its own weight to self-closing, normally sealing the pipe to prevent odors from rising. It automatically opens upon contact with water and automatically closes when there is no water. This odor-proof valve is vertical, dry, self-closing, and straight-through, offering advantages such as large flow diameter, fast flow rate, resistance to clogging, and low-temperature performance. It can be used for all indoor and outdoor pipe openings requiring sealing. This odor-proof valve is available in both outer-mounted and embedded types and can be used as an odor-proof valve or odor-proof floor drain to improve odor prevention and gas leakage in floor drains, toilets, washbasins, sinks, riser pipe openings, etc.
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Description

Technical Field

[0001] A vertical odor-proof valve is connected to the upper port of a vertical pipe to seal the pipe and prevent gas from rising. It can be used as an odor-proof valve or an odor-proof floor drain. It is vertical, self-closing, dry, straight-through, has a large water inlet diameter, fast flow rate, and quick closing action. It is suitable for use in indoor and outdoor environments with various temperatures. Background Technology

[0002] Currently, vertical odor-proof valves are rare. The most widely used types are floor drains and water traps, which are mostly wet types. The water inlet diameter is too small and not smooth, and the water resistance is high. They cannot meet the requirements for the passage of large flow and large volume fluids and for antifreeze. Summary of the Invention

[0003] The purpose of this invention is to provide a vertical, dry, straight-through anti-odor valve (anti-odor floor drain) with a large water inlet diameter, fast flow rate, and low resistance, suitable for use in various temperature environments, including indoors and outdoors.

[0004] This invention features a valve body where, under the support of a support point, the two halves of the valve body self-adjust and fit together concentrically with the outer sleeve, freely resting on the inner sealing ring of the outer sleeve. The two rings fit together, achieving a sealing effect in both vertical and horizontal directions. When water flows in, it enters the valve body through the guide pipe, opening the valve body and allowing water to pass through. A higher flow velocity results in a larger valve opening, and the seal automatically closes when the water stops. The valve body's through-hole diameter is larger than the guide pipe's diameter, allowing water to flow directly without obstruction. The guide pipe effectively prevents sewage from flowing past the sealing ring at the upper end of the valve body, thus preventing the valve's free opening and closing from being obstructed. Attached Figure Description

[0005] Figure 1 Odor-proof valve front view (outer jacket type)

[0006] Figure 2 Odor-proof valve front view (outer jacket type - fully open view)

[0007] Figure 3 Front view of the odor-proof valve (embedded)

[0008] Figure 4 Odor-proof valve front view (embedded - fully open)

[0009] Figure 5 Front view of the odor-proof valve casing (casing type)

[0010] Figure 6 Left view of the odor-proof valve casing (casing type)

[0011] Figure 7 Cross-sectional view of the outer casing of the odor-proof valve (outer casing type)

[0012] Figure 8 Front view of the odor-proof valve housing (embedded)

[0013] Figure 9Left view of the odor-proof valve housing (embedded)

[0014] Figure 10 Cross-sectional view of the odor-proof valve housing (embedded)

[0015] Figure 11 Odor-proof valve body front view

[0016] Figure 12 Front view of the odor-proof valve body (fully open view)

[0017] Figure 13 Front view of the single-piece valve body of the odor-proof valve

[0018] Figure 14 Enlarged view of the conical shaft node of the odor-proof valve body

[0019] Figure 15 Odor-proof valve guide cover main view (outer jacket type - pipe type)

[0020] Figure 16 Left view of the odor-proof valve guide cover (outer jacket type - connecting pipe type)

[0021] Figure 17 Cross-sectional view of the odor-proof valve guide cover (outer jacket type - pipe type)

[0022] Figure 18 Odor-proof valve guide cover front view (outer jacket type - floor drain type)

[0023] Figure 19 Left view of the odor-proof valve guide cover (outer jacket type - floor drain type)

[0024] Figure 20 Cross-sectional view of the odor-proof valve guide cover (outer jacket type - floor drain type)

[0025] Figure 21 Front view of the odor-proof valve guide cover (embedded)

[0026] Figure 22 Left view of the odor-proof valve guide cover (embedded)

[0027] Figure 23 Cross-sectional view of the odor-proof valve guide cover (embedded) Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings:

[0029] like Figure 1 The image shows the main view of a vertical odor-proof valve (outer sleeve type). The lower opening of the outer sleeve (1) is fitted onto the riser pipe opening and inserted to the inner sealing ring. The valve body (2) is inserted into the outer sleeve (1) along the conical groove and placed on the sealing ring. The large conical shaft of the guide cover (3) below is inserted into the outer sleeve (1) along the conical groove. It is then rotated and tightened to fix it. The upper opening of the guide cover is then connected to the pipe to complete the installation. Figure 2This represents the maximum fully open state when water is flowing through. Figure 5 , Figure 6 , Figure 7 The front view, left view, and sectional view of the outer casing of the odor-proof valve (outer casing type). Figure 11 , Figure 12 The front view and fully open front view of the odor-proof valve body (2) are shown. Figure 13 This is a front view of a single-piece valve body. Figure 14 This is an enlarged view of the two tapered shaft nodes of the valve body. Figure 15 , Figure 16 , Figure 17 The front view, left view and sectional view of the odor-proof valve guide cover (3) (outer jacket type - pipe type) are shown, and the pipe can be directly connected to the top; Figure 18 , Figure 19 , Figure 20 The front view, left view and sectional view of the odor-proof valve guide cover (3) (outer jacket type - floor drain type) are shown. A floor drain grate can be placed directly on it to make a floor drain.

[0030] like Figure 3 The image shows the main view of the vertical odor-proof valve (embedded). The outer sleeve (1) is inserted into the riser pipe opening, and the upper outer sealing ring presses against the pipe opening. The valve body (2) is inserted into the outer sleeve (1) along the conical groove and placed on the sealing ring. The large pipe opening conical shaft under the flow guide cover (3) is inserted into the outer sleeve (1) along the conical groove and rotated to tighten and fix it. A floor drain grate or connecting pipe can be placed directly on the flow guide cover to complete the installation. Figure 4 This represents the maximum fully open state when water is flowing through. Figure 8 , Figure 9 , Figure 10 Front view, left view and sectional view of the odor-proof valve housing (1) (embedded). Figure 11 , Figure 12 The front view and fully open front view of the odor-proof valve body (2) are shown. Figure 13 This is a front view of a single-piece valve body. Figure 14 This is an enlarged view of the two tapered shaft nodes of the valve body. Figure 21 , Figure 22 , Figure 23 The front view, left view and sectional view of the odor-proof valve guide cover (3) (embedded) are shown. Pipes can be directly connected or drain grates can be placed on it to make a floor drain.

Claims

1. A vertical self-closing odor-proof valve, divided into two types: outer sleeve type and embedded type: 1.1 Outer sleeve type, the structure consists of an outer sleeve (1) fitted onto the pipe opening, the lower plane of the inner sealing ring pressing against the pipe opening, and the upper arc supporting the self-closing valve body (2); the self-closing valve body is divided into two identical halves, the upper half of each half is a 30° spherical structure, and the lower half is a 30° oblique cut of a circular tube, using two concentric cones as the center point, one is an inner cone, which is inserted into the concave inner cone of the other half to rotate and interact with each other, and the other is an outer cone, the concave ... The lower part can move freely to adjust the height of the valve body to fit the sealing ring of the outer sleeve. The lower edge of the upper arc of the valve body is pressed on the arc of the sealing ring of the outer sleeve. The two rings are in plane fit together. The two halves of the valve body use self-hanging to make the vertical surfaces fit together to seal and block the gas. The guide cover (3) is placed on the outer sleeve. The oblique opening is narrowed. The guide pipe below is inserted into the space inside the valve body so that the water flows directly into the lower part of the valve body without contacting the upper sealing ring. The large opening under the guide cover is embedded in the outer sleeve for sealing and fixing. Using two small conical protrusions, it is lowered along the conical groove of the outer sleeve and rotated to fix the guide cover. There are two ways to do the guide cover: ① make a pipe clamp for the anti-odor valve; ② make a round groove to place the floor drain grate for the anti-odor floor drain. 1.2 Embedded structure: The outer sleeve (1) is inserted into the pipe opening, the upper outer sealing ring presses against the pipe opening, and the inner sealing ring supports the self-draining valve body (2) on the arc. The self-draining valve body is divided into two identical halves. The upper half of each half is a 30° spherical structure, and the lower half is a 30° oblique cut of a circular tube. Two concentric cones are used as the center point. One is an inner cone, which is inserted into the concave inner cone of the other half to rotate and interact. The other is an outer cone, whose concave ... The valve body is adjusted to fit the sealing ring of the outer sleeve. The lower edge of the upper arc of the valve body is pressed on the arc of the sealing ring of the outer sleeve. The two rings are in plane fit together. The two halves of the valve body are made to fit together vertically by self-hanging to seal and block the gas. The guide cover (3) is placed on the outer sleeve. The oblique opening is narrowed. The guide pipe is inserted into the space inside the valve body so that the water flows directly into the lower part of the valve body without contacting the upper sealing ring. The large opening under the guide cover is embedded in the inner sleeve for sealing. The two small conical protrusions are used to lower it along the conical groove of the outer sleeve. The guide cover is rotated to fix it. A floor drain grate is placed on the guide cover to make an odor-proof floor drain, or a pipe clamp is directly attached to the pipe to make an odor-proof valve.

Citation Information

Patent Citations

  • Self-sealing odor-resistant floor drain drainage core

    CN209227723U

  • Valve device

    JP2003049469A