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JP-7855747-B2 - Intake valve device

JP7855747B2JP 7855747 B2JP7855747 B2JP 7855747B2JP-7855747-B2

Inventors

  • 羽鳥 博之

Assignees

  • 前澤化成工業株式会社

Dates

Publication Date
20260508
Application Date
20250219

Claims (4)

  1. An intake valve device installed in a drainage pipe, The intake valve body, the cover body that covers the upper part of the intake valve body, and the lower part of the intake valve body It comprises a ventilation member attached to and a ventilation opening provided in the ventilation member, The ventilation member includes a partition that prevents drainage from entering the intake valve body from the water passage side, It is equipped with a wall portion that prevents the drainage from the water-conducting side from reaching the partition portion, The aforementioned wall portion is integrally provided so as to extend from a part of the partition portion toward the water passage side, and is curved in an arc shape. doing An intake valve device characterized by the following features.
  2. The ventilation member has an annular shape overall, The partition portion is formed from a plate-like member that extends substantially horizontally, The outer edge of the aforementioned vent is formed in an arc shape. The intake valve device according to feature 1.
  3. Multiple ventilation openings are provided in relation to the partition section. The outer peripheral edge and the ventilation member are formed to be concentric. The intake valve device according to feature 2.
  4. The partition portion comprises a disc-shaped partition plate positioned inside the outer periphery, and one of the partition plates It is equipped with a crossbar that extends from the section toward the center, The wall portion is formed perpendicular to the outer edge of the partition plate. The intake valve device according to feature 1.

Description

This invention relates to an intake valve device . Inside the drainage pipes of living spaces, the pressure balance within the pipes is disrupted according to the flow of wastewater, resulting in positive or negative pressure. If this causes the water seal in the trap installed in the drainage system to break, sewage odors can enter the room via the drainage system. Therefore, conventionally, devices such as intake valves and vent valves that can adjust the internal pressure of the pipeline in relation to the outside air are installed in the middle of the drainage pipe. Regarding the structure of intake valves, for example, the one disclosed in Patent Document 1 is known. The intake valve device in Patent Document 1 has a structure that opens the intake port by moving the valve body when a pressure difference occurs between the outside air pressure and the internal pressure of the drainage pipe within the water distribution pipeline. This intake valve device moves the valve body along a cylindrical guide axis that extends from the top surface to the base. This structure allows for a more compact intake valve device. Patent Application No. 2014-74483 This is a schematic diagram showing a piping system according to an embodiment of the present invention.This is a perspective view from the bottom, showing the external appearance of the first intake valve device.This is an exploded perspective view of the first intake valve device corresponding to Figure 2.This is a drawing showing the protective member of the first intake valve device, where (a) is a top view, (b) is a side view, and (c) is a bottom view.This is a top-view perspective showing the protective member of the first intake valve device.This is a perspective view from the bottom, showing the external appearance of the second intake valve device.This is a drawing showing the protective member of the second ventilation member, where (a) is a top view, (b) is a side view, and (c) is a bottom view.This is a top-view perspective showing the protective member of the second ventilation member.This is a conceptual diagram illustrating the operation and effect of the first intake valve system.This is a conceptual diagram illustrating the operation and effect of the second intake valve device. The embodiments for carrying out the present invention will be described below with reference to the drawings. The embodiments shown below are intended to provide a better understanding of the spirit of the invention and do not limit the present invention unless otherwise specified. Furthermore, the drawings are intended to facilitate understanding of the features of the present invention, and the dimensional ratios of each component may not be identical to those of the actual components. In the living space 100 of the house shown in Figure 1, a drainage pipeline 106 is formed beneath the floor, through which wastewater discharged from drainage facilities 101 such as washbasins, washing machines, toilets, and bathtubs is guided to a sewer pipe (not shown). Here, the drainage pipeline 106 is composed of a horizontal drainage pipeline 104 and a vertical drainage pipeline 105. The horizontal drainage pipeline 104 and the vertical drainage pipeline 105 are formed by connecting a plurality of pipes 102 and a plurality of fittings 103. Each drainage device 101 is connected to a fitting 103 via a drain pipe 107 at a predetermined location, and the drainage from each drainage device 101 is guided in a predetermined direction (towards the sewer pipe side) by the drain pipe 107 and the fitting 103. In this way, a drainage pipeline 106 is formed inside the building. (Piping system configuration) The piping system 1 of this embodiment includes vertical piping 2, horizontal piping 3, and an intake valve device 5 that adjusts the pressure inside these pipes. Vertical pipe 2 is a pipe that extends vertically within the drainage pipeline 106 and is composed of the vertical drainage pipeline 105. Horizontal pipe 3 is a pipe that extends horizontally within the drainage pipeline 106 and is composed of the horizontal drainage pipeline 104. The intake valve device 5 is designed to eliminate pressure drops (negative pressure) that occur within the drainage pipeline 106, and is installed at multiple locations along the pipeline 106. The intake valve device 5 opens to draw in outside air when a pressure drop occurs. The intake valve device 5 consists of a first intake valve device 6 installed in the vertical pipe 2 and a second intake valve device 7 installed in the horizontal pipe 3. The first intake valve device 6 is equipped with a first ventilation member 50 for the vertical pipe. The second intake valve device 7 is equipped with a second ventilation member 150 for the horizontal pipe, which has a different shape from the first ventilation member 50. The first intake valve device 6 is installed at the upper end of the vertical pipe 2. Specifically, the first intake valve device 6 is instal