CN201391012Y

CN201391012Y - Valve type back-pollution preventing device installed at sewer opening

Info

Publication number: CN201391012Y
Application number: CN200920052256U
Authority: CN
Inventors: 袁锦祺
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-09
Filing date: 2009-03-09
Publication date: 2010-01-27
Anticipated expiration: 2019-03-09

Abstract

The utility model relates to a valve type back-pollution preventing device installed at a sewer opening, which comprises a case body and a one-way valve. The one-way valve which is arranged in the case body can be opened by turning over outwards for water drainage, a water inlet is arranged at the upper end face of the case body, a first flow guide slope surface is arranged at the inner bottom face of the case body, the upper end of the one-way valve is pivoted on the case body, and the lower end of the one-way valve is leaned against the slope bottom of the first flow guide slope surface in an obliquely-downward manner. When no urban sewage or rain water flows into the sewer opening, the one-way valve is closed under the action of self weight, so as to exert the functions of preventing insects, smell and mice; when the sewage or the rain water flows into the sewer opening, water flow which is formed by utilizing the flow guide function of the flow guide slope surface can automatically open the one-way valve, so as to carry out normal water drainage; therefore, the two functions of water drainage and isolation can be automatically switched; moreover, the valve type back-pollution preventing device has the characteristics of simple structure, convenient using, high economical valve and good practicability.

Description

Be installed on the anti-polluting device that returns of valve-type of sewer mouth

Technical field

The utility model relates to insect protected, protection against rodents and the deodorization art of sewer mouth, refers in particular to simple in structure, an economical and practical anti-polluting device that returns of the valve-type that is installed on the sewer mouth.

Background technology

Sewer is the basic public construction in city; it is underground that it is set at the city; in order to admittance and discharge municipal sewage or rainwater, be lifting environmental quality, the protection security of the lives and property, ensure health and health, safeguard that water resource and water utilize indispensable communal facility again.

The sewer mouth is the inlet that municipal sewage or rainwater flow into sewer, and they are distributed widely in city square, both sides, street or the inhabitation community.Yet, the existence of this sewer mouth, though can play the function of being convenient to municipal sewage or rainwater inflow sewer, but problems have also been produced simultaneously, for example the stink that grows in the sewer, insect and mouse etc. can turn back to ground via this sewer mouth, cause to urban environment and to return pollution, bring adverse effect for air quality and people's health.

The utility model content

In view of this, the utility model is at the disappearance of prior art existence, and its main purpose provides a kind of anti-polluting device that returns of valve-type that is installed on the sewer mouth, to solve the pollution problems of returning of sewer mouth.

For achieving the above object, the utility model adopts following technical scheme:

A kind of anti-polluting device that returns of valve-type that is installed on the sewer mouth, comprise a casing and be arranged at outwards to overturn in the casing and open the one-way cock of draining, the upper surface of casing is provided with water inlet, the inner bottom surface of casing is provided with the first water conservancy diversion slope, the upper end of this one-way cock is articulated on the casing, and the one-way cock lower end is oblique takes at the sloping end that is against the first water conservancy diversion slope down.

As a kind of preferred version, described water inlet further is provided with the second water conservancy diversion slope, and the upper end system of this one-way cock is articulated in the lower rim of the second water conservancy diversion slope.

As a kind of preferred version, the described first water conservancy diversion slope is two, and they are splayed back-to-back and are symmetrical arranged, and are respectively arranged with two one-way cocks on the two sides corresponding to casing.

As a kind of preferred version, described casing is glass fiber, resin or plastic material.

After the utility model adopted technique scheme, its beneficial effect was that when no municipal sewage or rainwater inflow sewer mouth, this one-way cock is in closed condition under the deadweight effect, can play the effect of insect protected, deodorization, protection against rodents; When sewage or rainwater inflow sewer mouth, its current that utilize the guide functions of water conservancy diversion slope to form are opened one-way cock automatically, with normal draining.It can automatically switch between draining and two kinds of functions of isolation by this, has simple in structure, easy to use and economical and practical characteristics.

Come the utility model is elaborated below in conjunction with accompanying drawing and specific embodiment:

Description of drawings

Fig. 1 is the three-dimensional diagrammatic sketch of assembling of first kind of embodiment of the utility model;

Fig. 2 is the application sectional view of first kind of embodiment of the utility model, and the one-way cock among the figure is in closed condition;

Fig. 3 is another state diagram of Fig. 2, and the one-way cock among the figure is in open mode;

Fig. 4 is the application sectional view of second kind of embodiment of the utility model, and the one-way cock among the figure is in closed condition;

The accompanying drawing identifier declaration:

10, casing

11, scrap (bridge)

12, water inlet

13, the second water conservancy diversion slope

14, the first water conservancy diversion slope

15, delivery port

16, one-way cock

20, sewer mouth

30, antifouling cover

The specific embodiment:

At first, please refer to Fig. 1 to shown in Figure 3, the concrete structure that it has demonstrated the preferred embodiment of the utility model includes the casing 10 that can be made by environment-friendly materials such as glass fiber, resin or plastic materials, this casing 10 is to be installed in the sewer mouth 20, and is arranged at the below of antifouling cover 30.The top lateral margin of casing 10 is provided with scrap (bridge) 11, utilizes this scrap (bridge) 11 casing 10 is positioned on the step in the sewer mouth 20.The upper surface of casing 10 is provided with the water inlet 12 over against antifouling cover, water inlet 12 places are provided with the two second water conservancy diversion slopes 13 that are in the shape of the letter V and are provided with, the inner bottom surface of casing 10 is provided with two first water conservancy diversion slopes 14, this two first water conservancy diversion slope 14 is splayed back-to-back and is symmetrical arranged, and is provided with a delivery port 15 between the sloping end of each first water conservancy diversion slope 14 and casing side.

And, on the casing side, be respectively arranged with two one-way cocks 16, this two one-way cock 16 unidirectional opening of can outwards overturning, the upper end of this one-way cock 16 is articulated on the lower rim of the second water conservancy diversion slope 13 of casing, one-way cock 16 lower ends are oblique takes down at the sloping end that is against the first water conservancy diversion slope 14, makes two one-way cocks 16 unidirectional the opening of can outwards overturning.

It is as follows that its operating principle is described in detail in detail:

As Fig. 2, usually when no sewage or rainwater inflow sewer mouth 20, this one-way cock 16 is taken under the effect of himself gravity all the time at the sloping end that is against the first water conservancy diversion slope 14, can prevent effectively that so stink, line worm or mouse etc. in the sewer from running out of via sewer mouth 20, reaches the purpose that prevents to return pollution.And when having rainwater or sewage to flow into sewer mouth 20 because of rainy or cleaning ground, as Fig. 3, under the impulse force of current, this one-way cock 16 flips to the outside to open and forms the mouth of a river 15, current can directly enter sewer via this delivery port 15, realize normal draining.When current had been arranged, this one-way cock 16 is upset downwards automatically under its deadweight once more just, covers delivery port 15 again, to continue preventing that stink, line worm or mouse etc. in the sewer from running out of via the sewer mouth.

Then, please refer to shown in Figure 4, it has demonstrated the concrete structure of second kind of embodiment of the utility model, the difference of present embodiment and aforementioned first kind of embodiment is, the one-way cock 16 that it has only a side is particularly suitable for using under sewer mouth size is less or displacement the is less situation.

Design focal point of the present utility model is, main system utilizes the one-way cock that can close under deadweight to isolate sewer and ground, and open one-way cock automatically in conjunction with the current that the guide functions of water conservancy diversion slope forms, realize the switching of automatic draining and isolation features, have simple in structure, easy to use and economical and practical characteristics.

The above, it only is preferred embodiment of the present utility model, be not that technical scope of the present utility model is imposed any restrictions, so every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of anti-polluting device that returns of valve-type that is installed on the sewer mouth, it is characterized in that: comprise a casing and be arranged at outwards to overturn in the casing and open the one-way cock of draining, the upper surface of casing is provided with water inlet, the inner bottom surface of casing is provided with the first water conservancy diversion slope, the upper end of this one-way cock is articulated on the casing, and the one-way cock lower end is oblique takes at the sloping end that is against the first water conservancy diversion slope down.

2, the valve-type that is installed on the sewer mouth according to claim 1 is prevented returning polluting device, and it is characterized in that: described water inlet further is provided with the second water conservancy diversion slope, and the upper end system of this one-way cock is articulated in the lower rim of the second water conservancy diversion slope.

3, the anti-polluting device that returns of valve-type that is installed on the sewer mouth according to claim 1, it is characterized in that: the described first water conservancy diversion slope is two, they are splayed back-to-back and are symmetrical arranged, and are respectively arranged with two one-way cocks on the two sides corresponding to casing.

4, the valve-type that is installed on the sewer mouth according to claim 1 is prevented returning polluting device, and it is characterized in that: described casing is glass fiber, resin or plastic material.