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Water-related backflow preventing draining device

A technology of drainage device and permeable hole, which is applied in the direction of valve operation/release device, valve device, functional valve type, etc., can solve the problems of inconvenient assembly and complex structure, and achieve the effect of convenient installation.

Pending Publication Date: 2020-04-21
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a drainage device for preventing wading and backflow, which is used to solve the problem of complex structure and inconvenient assembly in the prior art

Method used

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  • Water-related backflow preventing draining device
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  • Water-related backflow preventing draining device

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Embodiment Construction

[0021] Such as figure 2 , 3 The shown drainage device 20 for preventing wading and backflow includes a screw sleeve 10 with an external thread 105. The screw sleeve 10 has an internal stepped hole, and the relationship between the upper and lower positions is defined according to the orientation shown in the figure. The stepped hole is from the upper end to the The lower end is successively the drain hole section, the conical section 102 converging upward, the buoyancy valve section 103 and the installation section of the permeable plugging core.

[0022] The hole diameter of the discharge hole section is the smallest, followed by the buoyancy valve section, and the hole diameter of the permeable plugging installation section is the largest. The weep hole section corresponds to the weep hole on the upper end surface of the screw sleeve, forming the weep hole 101 . A buoyant ball 11 is arranged in the cavity of the buoyancy valve section 103 , and when the buoyant ball 11 fl...

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Abstract

The invention relates to a water-related backflow preventing draining device. The water-related backflow preventing draining device comprises a mounting sleeve which is internally provided with a stepped hole; a floating ball and a water permeating blocking core are installed inside the stepped hole; the stepped hole inside the mounting sleeve, from top to bottom, is sequentially divided into a water drainage hole section, a conical section, a buoyant valve section and a water permeating blocking core mounting section, wherein the conical section is matched with the floating ball in order to block a water drainage hole; the buoyant valve section is used for accommodating the floating ball; the water permeating blocking core mounting section is used for fixedly and hermetically installing the water permeating blocking core; the water permeating blocking core is provided with a water permeating hole; the upper end face of the water permeating blocking core is provided with a first grooveused for preventing the floating ball from blocking the water permeating hole; and the water permeating hole communicates with the first groove. The water-related backflow preventing draining deviceneeds quite few installation fittings and is quite convenient to install.

Description

technical field [0001] The invention relates to a drainage device for preventing backflow of wading water. Background technique [0002] For the engine and motor of an ordinary vehicle, or for the motor of a new energy vehicle, when the vehicle is wading, external sewage will enter the engine or motor through the drain hole of the engine or motor. [0003] In order to solve this problem, the Chinese patent document with the authorized announcement number CN201953526U discloses a structure, including a valve housing 1, a bottom cover 4, a float 3, a guide seal ring 2 and an umbrella rod 8, and the guide seal ring 2 is arranged on the umbrella rod 8 The top is a spherical crown; an umbrella pole 8 is installed in the permeable hole on the bottom cover 4, and the float 3 is sleeved on the umbrella pole 8. Water inlet holes 7 are arranged around the bottom cover 4 . When wading, water enters from the water inlet hole 7 to make the float 3 float, and drives the umbrella rod 8 a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/04F16K15/18F16K31/20
CPCF16K15/04F16K31/20F16K15/1823
Inventor 葛亚非纪秉男李向阳牛红恩
Owner ZHENGZHOU YUTONG BUS CO LTD
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