An explosion-proof floor drain used in civil air defense projects

A technology of civil air defense projects and floor drains, applied in waterway systems, buildings, water supply devices, etc., can solve the problems that explosion-proof floor drains cannot protect against irritating gases or shock waves, and achieve the effect of preventing damage
CN110230349BActive Publication Date: 2020-12-01山西国悦人防工程防护设备有限公司
5 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
山西国悦人防工程防护设备有限公司
Publication Date
2020-12-01

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to the technical field of civil air defense engineering, and discloses an explosion-proof floor drain for civil air defense engineering. Two side casings are respectively mountedon the left and right sides of a main casing and communicate with the main casing, two side cylinder bodies are respectively fixedly mounted at the tops of the two side casings, two connecting pipesfixedly communicate with the two side cylinder bodies respectively, the tail ends of the two connecting pipes penetrate through the left and right sides of the main casing respectively and extend to the inner side of the main casing, two one-way air valves are mounted on the parts, located at the main casing, of the connecting pipes respectively. According to the explosion-proof floor drain for civil air defense engineering, the coincidence rate between an inner hole and an outer hole gradually decreased, so that the purpose of reducing the water discharge amount of a floor drain is achieved,meanwhile the coincidence rate between the inner hole and the outer hole is decreased, thus the weakening of shock waves by the device is gradually increased so as to achieve the effect of improving the protection of the explosion-proof floor drain, normal drainage can be conducted, harmful gas can be prevented from diffusing through underground pipelines, and thus the protection of the device during normal use is improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of civil air defense engineering, in particular to an explosion-proof floor drain used in civil air defense engineering. Background technique

[0002] Civil air defense projects are national infrastructure projects. Explosion-proof floor drains are frequently used equipment in civil air defense projects. Explosion-proof floor drains are used to connect drainage in normal use. Under special circumstances, they can be sealed and closed to prevent impact and gas to protect people. For the purpose of indoor or pipeline safety, the existing explosion-proof floor drains are generally composed of some mesh filter covers and anti-shock wave sealing baffles. The sealing baffle prevents the shock wave from entering and seals the air. There may be special cases where it is too late to close the explosion-proof floor drain. The explosion-proof floor drain cannot achieve its protective purpose of sealing the air. Therefo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More