CN213867335U - Filter screen of highway bridge deck runoff collection system - Google Patents

Abstract

The utility model relates to a filter screen of a highway bridge floor runoff collecting system, which can effectively solve the problems that the prior rainwater grate has larger clearance, can only intercept sundries with larger size, has poor use effect and can not meet the operation requirement of the prior bridge floor runoff collecting system, an outer frame is a ring body made of PVC, an inner frame and a filter screen are arranged on an inner frame, an inner filter frame is composed of PVC, the intercommunicating pore of the center of the inner frame is connected with the filter screen which covers the intercommunicating pore and extends downwards, the upper opening of the inner ring of the outer frame is larger than the lower opening, the upper opening of the inner ring of the outer frame is connected with the inner filter frame, the outer frame peripheral wall of the inner frame of the inner filter frame is detachably buckled with the upper opening of the inner ring of the outer frame, the filter screen of the inner filter frame extends downwards from the lower opening of the inner ring of the outer frame, and a # -shaped support body is arranged above the filter screen on the intercommunicating pore of the center of the inner frame, the utility model discloses simple structure, convenient to use, easy to operate, it is effectual, solved the potential safety hazard.

Description

Filter screen of highway bridge deck runoff collection system

Technical Field

The utility model relates to a drainage equipment, especially a highway bridge floor runoff collection system's filter screen.

Background

With the rapid increase of road passing mileage, the influence of road and bridge surface runoff on important surface water bodies such as drinking water sources and places is increasingly intensified. The bridge deck runoff collecting system is a main measure for preventing and controlling runoff pollution. Set up bridge floor runoff collection system except taking precautions against highway bridge floor runoff and pollute, more importantly in order to take place the accident leakage pollution of bridge position department.

The bridge deck runoff collecting system arranged on the current highway adopts the following scheme: and paving a transverse drain pipe outside the bridge to be connected with a bridge floor drain hole, wherein the bridge floor runoff flows into the drain pipe through the reserved drain hole of the bridge floor and then is converged into the water collecting tank. The bottom and the wall of the pool are both made of grouted rubbles, and the bottom of the pool is subjected to simple anti-seepage treatment and is generally arranged in a river channel below the bridge.

For example, the highway bridge deck runoff real-time identification and selective collection system with the patent number of CN201210063998.0, wherein a controller is respectively connected with a camera, a first electromagnetic valve, a rain and snow sensor, a second electromagnetic valve, an ultrasonic flowmeter and a third electromagnetic valve, the controller is connected with a monitor through a router, the ultrasonic flowmeter is attached to the outer wall of a U-shaped detection tube, the U-shaped detection tube is internally provided with the second sensor connected with the controller, the U-shaped detection tube is respectively communicated with the second electromagnetic valve and the third electromagnetic valve, a first discharge port of the second electromagnetic valve is communicated with a sedimentation tank, a second discharge port of the second electromagnetic valve is communicated with a first water inlet pipe of a collection tank for accident leakage, a second water inlet pipe of the collection tank is connected with a discharge port of the third electromagnetic valve, a liquid level meter connected with the controller is arranged in the collection tank, the discharge port of the sedimentation tank is connected with the first electromagnetic valve, and the first electromagnetic valve is provided with a first discharge port and a second discharge port, the first discharge port of the first electromagnetic valve is connected with the water inlet pipe of the purifier, and the water outlet pipe of the purifier and the second discharge port of the first electromagnetic valve are respectively communicated with the side ditch.

Although the above-described collecting system can effectively exert the effect of preventing the leakage of an accident, it is necessary to use a two-position three-way solenoid valve or a butterfly valve (hereinafter referred to as a solenoid valve) as a flow direction switching device. The electromagnetic valve belongs to a precise electromechanical device, the valve is very tight when being closed when the electromagnetic valve plays a role, various particles and sundries are distributed on a road, the particles and the sundries easily enter a drainage pipeline under the influence of wind power, runoff entrainment and human factors, and sediment and blockage are formed at the rotation position of the pipeline and the position of the valve to influence the normal operation of a collecting system.

And the rainwater grate that current bridge floor runoff collection system outlet entrance adopted is cast iron or PVC material mostly, and the clearance is great, can only intercept the great debris of size, can't satisfy above-mentioned bridge floor runoff collection system operation demand. In order to maintain the cleanliness of the interior of a pipeline of a bridge deck runoff collection system and prolong the maintenance period of a drainage pipeline, improvement and innovation are imperative.

Disclosure of Invention

To the above situation, for overcoming the prior art defect, the utility model aims at providing a highway bridge floor runoff collection system's filter screen can effectively solve current rainwater grate, and the clearance is great, can only block the great debris of size, and the result of use is poor, can't satisfy current bridge floor runoff collection system operation demand problem.

The utility model provides a technical scheme be, including outer frame and inside filter frame, outer frame is the ring body of making by PVC, inside filter frame comprises inside casing and the filter screen that PVC made, the intercommunicating pore department at inside casing center is connected with and covers the intercommunicating pore, downwardly extending's filter screen, outer frame's inner ring upper portion opening is greater than the lower part opening, outer frame's inner ring upper portion opening in-connection has inside filter frame, the inside casing periphery wall of inside filter frame and outer frame's the detachable knot of inner ring upper portion opening are in the same place, outer frame is stretched out downwards from outer frame's inner ring lower part opening to the filter screen of inside filter frame, there is the "#" font supporter of arranging the filter screen top on the intercommunicating pore at inside casing center.

The utility model discloses simple structure, convenient to use, easy to operate, it is effectual, solved the potential safety hazard.

Drawings

Fig. 1 is a front view of the structure of the present invention.

Fig. 2 is a structural plan view of the external frame of the present invention.

Fig. 3 is a sectional view taken along the line a-a of fig. 2 according to the present invention.

Fig. 4 is a top view of the inner filter frame of the present invention.

Fig. 5 is a sectional view taken along line B-B of fig. 4 according to the present invention.

Fig. 6 is a side view of the inner filter frame of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

By figure 1-6 provide, the utility model discloses an outer frame 1 and inside filter frame, outer frame is the ring body of making by PVC, inside filter frame comprises inside casing 2 and filter screen 3 that PVC made, the intercommunicating pore 7 department at inside casing center is connected with and covers the intercommunicating pore, downwardly extending's filter screen, outer frame's inner ring upper portion opening 1a is greater than lower part opening 1b, outer frame's inner ring upper portion opening in-connection has inside filter frame, the detachable knot of inner frame periphery wall and outer frame's inner ring upper portion opening of inside filter frame is in the same place, outer frame is stretched out downwards from outer frame's inner ring lower part opening to the filter screen of inside filter frame, there is "#" font supporter 4 of arranging the filter screen top in on the intercommunicating pore at inside casing center.

The inner frame 2 is of an annular structure with a communication hole in the center, and the outer diameter of the inner frame is matched with the diameter of the opening in the upper part of the inner ring of the outer frame.

The diameter of the communicating hole 7 of the inner frame 2 is equal to or less than that of the lower opening of the inner ring of the outer frame.

The filter screen 3 is a cylindrical filter screen structure with an opening at the upper end and made of stainless steel mesh or terylene mesh cloth.

The side wall of the external frame 1 is in an L-shaped longitudinal section.

The peripheral wall of the upper opening of the inner ring of the outer frame 1 is provided with internal threads, the peripheral wall of the outer ring of the inner frame of the inner filter frame is provided with external threads matched with the internal threads or the peripheral wall of the upper opening of the inner ring of the outer frame is provided with inclined raised lines 5 arrayed along the circumference in a ring shape, and the peripheral wall of the outer ring of the inner frame of the inner filter frame is provided with inclined grooves 6 matched with the inclined raised lines.

The top of each inclined convex strip 5 is flush with the top of the upper opening of the inner ring of the outer frame.

The ratio of the length to the diameter of the filter screen 3 is 0.75-2.5.

The meshes of the filter screen 3 are 20-75 meshes.

The inner filter frame is an integrated structure consisting of an inner frame and a filter screen.

The utility model discloses the lateral wall of external frame is indulged and is personally submitted "L" shape, has played the supporting role to inside filter frame, has the "#" font supporter of arranging the filter screen top in on the intercommunicating pore at inside filter frame center, and the effect consolidates inside filter frame, and the installation and the dismantlement of inside filter frame of not only being convenient for still can intercept bold debris. During the use, install outside frame in bridge floor outlet department earlier, put into outside frame with inside filter frame again, can be in the same place outside frame and inside filter frame lock joint after screwing, wherein, the filter screen can filter tiny grit, prevents that the particulate matter from forming the deposit and then influencing the valve seal in pipeline corner and valve department, and the grit of holding back is deposited in the filter screen bottom, takes off the deposit that can clear up in the filter screen behind the inside filter frame. In order to ensure the drainage effect of the drainage holes, the effective water passing area of the filter screen of the internal filter frame needs to be larger than the area of the drainage holes, so that the meshes of the filter screen are 20-75 meshes, and the ratio of the length to the diameter of the filter screen is 0.75-2.5, so that the water passing area of the filter screen is still not lower than the area of the drainage holes after sand is intercepted, and the drainage capability is not influenced under the condition that the meshes are encrypted.

The utility model is suitable for a bridge floor runoff collection system cooperation that sets up the solenoid valve is used to through probation, can effectively hold back the tiny particulate matter of holding the area in the bridge floor runoff, avoid it to block up valve or drainage pipe, excellent in use effect, and no potential safety hazard, effectively take precautions against the emergence of preventing the pollution accident.

Claims (10)

1. The utility model provides a filter screen of highway bridge floor runoff collection system, characterized in that, including outer frame (1) and inside filter frame, outer frame is the ring body of making by PVC, inside filter frame comprises inside casing (2) and filter screen (3) that PVC made, intercommunicating pore (7) department at inside casing center is connected with and covers the intercommunicating pore, the filter screen of downwardly extending, inner ring upper portion opening (1 a) of outer frame is greater than lower part opening (1 b), the inside filter frame of being connected with in the opening of inner ring upper portion of outer frame, the inside casing periphery wall of inside filter frame and the detachable lock joint of inner ring upper portion opening of outer frame are in the same place, the filter screen of inside filter frame stretches out outer frame from the inner ring lower part opening of outer frame downwards, there is "#" style support body (4) of arranging above the filter screen on the intercommunicating pore at inside frame center.

2. The filter screen of the highway bridge deck runoff collection system according to claim 1, wherein the inner frame (2) is of an annular structure with a communication hole in the center, and the outer diameter of the inner frame is matched with the diameter of the upper opening of the inner ring of the outer frame.

3. The filter screen of the highway bridge deck runoff collection system according to claim 1, wherein the diameter of the communication holes (7) of the inner frame (2) is equal to or smaller than the diameter of the opening at the lower part of the inner ring of the outer frame.

4. The filter screen of the highway bridge deck runoff collection system according to claim 1, wherein the filter screen (3) is a cylindrical filter screen structure with an open upper end made of stainless steel mesh or polyester mesh.

5. The filter screen of the highway deck runoff collection system according to claim 1, wherein the longitudinal section of the side wall of the outer frame (1) is L-shaped.

6. The filter screen of the highway bridge deck runoff collecting system according to claim 1, wherein the peripheral wall of the upper opening of the inner ring of the outer frame (1) is provided with internal threads, the peripheral wall of the outer ring of the inner frame of the inner filter frame is provided with external threads matched with the internal threads or the peripheral wall of the upper opening of the inner ring of the outer frame is provided with inclined convex strips (5) arrayed along the circumference ring, and the peripheral wall of the outer ring of the inner frame of the inner filter frame is provided with inclined grooves (6) matched with the inclined convex strips.

7. A filter screen for a road deck runoff collection system according to claim 6 wherein the top of each inclined rib (5) is flush with the top of the upper opening of the inner ring of the outer frame.

8. A filter screen for a road deck runoff collection system according to claim 1 wherein the ratio of the length to the diameter of the filter screen (3) is between 0.75 and 2.5.

9. The filter screen of the highway bridge deck runoff collecting system according to claim 1, wherein the meshes of the filter screen (3) are 20-75 meshes.

10. The filter screen of a road deck runoff collection system of claim 1 wherein the inner filter frame is an integral structure of an inner frame and the filter screen.

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