CN2226086Y

CN2226086Y - Floor drain capable of preventing gas in sewer from escape

Info

Publication number: CN2226086Y
Application number: CN 95231459
Authority: CN
Inventors: 刘德新
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-20
Filing date: 1995-06-20
Publication date: 1996-05-01
Anticipated expiration: 2005-06-20

Abstract

The utility model relates to a floor drain capable of preventing gas in a sewer from escaping. The utility model is characterized in that a compression spring (3) is fixed at the bottom surface of a filter plate (2), and the lower end of the spring is connected with a closing cap (5) which clogs the upper edge of an outfall (6) of a funnel by the pressure of the spring. When the closing cap is submerged in water, the buoyancy of the water can cause the closing cap to rise to open the outfall of the funnel. When no sewage is drained, the closing cap of the floor drain seals the outfall to cause the gas in a sewer not to come out. When the sewage is drained, the buoyancy of the water causes the closing cap to buoy to open the outfall, and the sewage can be drain smoothly.

Description

Prevent the floor drain that gas is emerged in the sewer

The utility model relates to building indoor drainage device, particularly a kind of emerge floor drain in the inlet chamber of the gas in the sewer that prevents.

The floor drain of existing building flooring sewage effluent adds a filter by a simple straight funnel top and constitutes.Use this floor drain, because sewer communicates with the chamber people by floor drain, the dirty gas that produces in the sewer can be emerged from floor drain in the inlet chamber at any time, causes room air pollution.

The purpose of this utility model is to overcome the shortcoming of above-mentioned existing floor drain and a kind of floor drain that can prevent that the gas in the sewer from emerging is provided.

The floor drain that the utility model provides, be to fix a compression spring in the bottom surface of its filter, the lower end of this compression spring connects the pressure by spring makes its capping of blocking funnel outfall upper edge, and the buoyancy that this capping is subjected to when immersing in water should be greater than the gravity of capping self and spring to capping pressure sum.Therefore, capping generally should be manufactured much smaller than the material such as the foamed plastics of water by proportion.

The floor drain of said structure, during without sewage discharge, anhydrous in the funnel, the pressure of spring makes capping block the funnel outfall at ordinary times, and the gas in the sewer pipe just can emit.During sewage effluent, in a single day water flow into submergence capping in the funnel, and buoyancy of water overcomes the pressure of spring and the gravity of capping upwards floats capping, opens the funnel outfall, and sewage enters in the sewer pipe smoothly; Sewage has been arranged, and capping is pressed to do by spring and set back, and seals the funnel outfall.

Accompanying drawing is depicted as structural representation of the present utility model.

In conjunction with the accompanying drawings, the utility model prevents the floor drain that gas is emerged in the sewer, its funnel 1 is identical with existing floor drain with the filter 2 that top has filter opening, on the bottom surface of filter 2, be screwed a compression spring 3, this spring lower end connects a slightly larger in diameter in the capping 5 of funnel outfall 6 bores, this capping adopts polyurethane foam plastics to manufacture, depart from the center when floating for avoiding capping to make progress, this floor drain also is provided with the post bar 4 that the one group of lower end that is symmetrically distributed into the cage shape may be stuck in the outside, funnel outfall upper edge in the bottom of its filter 2.The stretch parameter of the spring 3 of floor drain should soak the size of establishing the buoyancy that is subjected in the water according to capping to be chosen, and does not in a single day have in the entry floatage energy make it float that to open the funnel outfall be design principles with capping.Consider corrosion-resistant requirement, available polyvinyl chloride mold pressings such as the funnel of this floor drain, filter and post bar are manufactured.

Claims

1, a kind of floor drain that gas is emerged in the sewer that prevents by funnel (1) and filter (2) formation, it is characterized in that: fix a compression spring (3) in the bottom surface of said filter (2), the lower end of this compression spring (3) connects the pressure by spring makes its capping (5) of blocking funnel outfall (6) upper edge, and the buoyancy that this capping is subjected to when immersing in water should be greater than the gravity of capping self and spring to this capping pressure sum.

2, as the said floor drain of claim 1, it is characterized in that: said capping (5) is manufactured by foamed plastics.

3, as claim 1 and 2 said floor drains, it is characterized in that: have the one group of lower end that is symmetrically distributed into the cage shape to may be stuck in the post bar (4) in the outside, said funnel outfall (6) upper edge in the bottom of said filter (2).