CN205216402U - Filter equipment in municipal administration drain pipe - Google Patents

Abstract

The utility model discloses a filtering device in a municipal drainage pipe, which comprises a vertically arranged filter tube. The filter tube is provided with a conical drainage tube. The upper end opening of the drainage tube is larger than the lower end opening. The lower end of the filter tube is provided with a detachable There is a drainage cavity connected with the drain pipe between the drainage tube and the inner wall of the filter tube, and a filter screen is arranged between the drainage cavity and the sewage collection tube. Since the filter device is equipped with a dirt collection cylinder, the dirt collection cylinder can hold a large amount of dirt, so it is not necessary to clean it frequently, and only needs to deal with the dirt in the dirt collection cylinder once in a while. The ability of water to reduce the possibility of dirt adhering to the filter net, the filter device can effectively reduce maintenance costs.

Description

A filter device in a municipal drainage pipe

technical field

The utility model belongs to the municipal technical field and relates to a filter device in a municipal drainage pipe.

Background technique

A large amount of sewage will flow through the urban underground drainage pipes. In order to prevent the drainage pipes from being blocked, a filter screen is usually installed in the drainage pipes. The existing filter screens are usually simply installed in the drainpipe in a cross section, so that the dirt blocked by the drainpipe will remain on the filter screen, and the filter screen needs to be cleaned frequently to keep the drainpipe unobstructed, which is troublesome and costly to maintain. High, a large number of filters in a city need to consume a lot of manpower and material resources.

Contents of the invention

The utility model proposes a filtering device in a municipal drainage pipe aiming at the problems existing in the prior art, and aims at reducing the maintenance cost of the filtering device in the drainage pipe.

The utility model is achieved in that:

A filter device in a municipal drainage pipe is characterized in that it includes a vertically arranged filter tube, a tapered drainage tube is arranged in the filter tube, the upper end opening of the drainage tube is larger than the lower end opening, and the filter tube The lower end is provided with a detachable sewage collection tube, and there is a drainage chamber communicated with a drain pipe between the drainage cylinder and the inner wall of the filter tube, and a filter screen is arranged between the drainage chamber and the sewage collection cylinder.

In the aforementioned filter device in a municipal drainage pipe, the wall of the drainage tube has filter holes.

In the above-mentioned filter device in a municipal drainage pipe, the drainage tube is clamped on the filter tube.

In the above-mentioned filter device in a municipal drainage pipe, the periphery of the filter screen has a mesh ring, and the surface of the mesh ring that the outer wall of the drainage tube abuts against is in an inclined shape that matches the outer wall of the drainage tube. .

In the above-mentioned filter device in a municipal drainage pipe, the dirt collecting cylinder is detachably fixed on the filter pipe through a screw connection.

The filter device in a municipal drainage pipe provided by the utility model is provided with a dirt collecting cylinder, which can accommodate a large amount of dirt, so it does not need to be cleaned frequently, and only needs to deal with the dirt in the dirt collecting cylinder once in a while. Yes, the sewage has been precipitated before passing through the filter screen, which improves the ability of the filter screen to pass through water and reduces the possibility of dirt adhering to the filter screen. This filter device can effectively reduce maintenance costs.

Description of drawings

Fig. 1 is a structural schematic diagram of the filter device of the present invention.

detailed description

The specific implementation of the utility model will be described in further detail below in conjunction with the accompanying drawings of the embodiments, so as to make the technical solution of the utility model easier to understand and grasp. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

This embodiment provides a kind of filtering device in the municipal drainage pipe, as shown in Figure 1, comprises the filter pipe 1 that is vertically arranged, and the upper end of filter pipe 1 is water inlet, and water outlet is positioned at the sidewall of filter pipe 1, The water outlet is connected with the drain pipe 3. The filter tube 1 is provided with a tapered drainage tube 11, the upper opening of the drainage tube 11 is larger than the lower end opening, the lower end of the filter tube 1 is provided with a detachable dirt collection tube 2 through threads, and there is a gap between the drainage tube 11 and the inner wall of the filter tube 1. A drain cavity 13 communicated with the drain pipe 3 , and a filter screen 12 is arranged between the drain cavity 13 and the sewage collection tube 2 .

The working principle of the filter device of the utility model is as follows: the sewage flows from the water inlet of the filter pipe 1 through the drainage tube 11 and flows into the sewage collection cylinder 2, a part of the dirt is deposited in the sewage collection cylinder 2, and the sewage flows into the drainage cavity 13 through the filter screen 12, The dirt is filtered by the filter screen 12, and the dirt is further precipitated, and then the sewage flows into the drain pipe 3 from the drain chamber 13. The smaller lower opening of the drainage tube 11 can prevent sewage and dirt from flowing back, and also leave space for the setting of the filter screen 12 . The dirt collection cylinder 2 can hold a large amount of dirt, so it is not necessary to clean it frequently, and it is only necessary to deal with the dirt in the dirt collection cylinder 2 once in a while. The sewage has been precipitated before passing through the filter screen 12, which improves the ability of the filter screen 12 to pass through water and reduces dirt The possibility of sticking to the filter net 12, the filter device can effectively reduce the maintenance cost.

Further, there are filter holes on the wall of the drainage tube 11, and a large number of filter holes are distributed on the wall of the drainage tube 11, that is to say, the wall of the drainage tube 11 is in the form of a filter screen, so that sewage can flow in from the filter holes. The drain chamber 13 enables the water inflow and outflow in the drainage tube 11 to be balanced. The drainage tube 11 can be directly integrally fixed on the filter tube, preferably, the drainage tube 11 is detachably fixed on the filter tube, for example snap-fitted, so that the cleaning of the drainage tube 11 is facilitated.

Further, the periphery of the filter screen 12 has a net ring 121, and the surface against which the outer wall of the drainage tube 11 of the net ring 121 is in an inclined shape matched with the outer wall of the drainage tube 11, so that the outer wall of the drainage tube 11 has a great influence on the filter screen 12. With good abutting effect, the filter screen 12 is not easily deformed under the action of water flow.

It should be understood that the above description is only a preferred embodiment of the utility model, and is not enough to limit the technical solution of the utility model. For those of ordinary skill in the art, within the spirit and principles of the utility model, Additions, subtractions, substitutions, changes or improvements can be made according to the above description, and all technical solutions after these additions, substitutions, changes or improvements should belong to the protection scope of the appended claims of the utility model.

Claims (5)

1. the filter in a municipal drain, it is characterized in that, comprise the screen pipe vertically arranged, taper drainage cylinder is provided with in described screen pipe, the upper end open of described drainage cylinder is greater than lower ending opening, the lower end of described screen pipe is provided with dismountable sludge collecting tube, has the drain chamber be communicated with drainpipe, be provided with screen pack between described drain chamber and described sludge collecting tube between described drainage cylinder and described screen pipe inwall.

2. filter according to claim 1, is characterized in that, the barrel of described drainage cylinder has filter bores.

3. filter according to claim 2, is characterized in that, described drainage cylinder is connected on described cartridge filter.

4. filter according to claim 1, is characterized in that, week of described screen pack along having net circle, the outer wall of the described drainage cylinder of described net circle against face in the outer wall of described drainage cylinder coordinate skewed.

5. filter according to claim 1, is characterized in that, described sludge collecting tube is threaded connection dismountable being fixed on described screen pipe.