A drainage outlet filtering device with a quick opening function and a construction method thereof

Abstract

This invention discloses a drain outlet filter device with a quick-opening function and its construction method, relating to the field of municipal road drainage technology. It includes a manhole cover located at the top of a drainage ditch and a filter screen located within the drainage ditch. A filter plate is provided in the middle of the manhole cover, one end of which is rotatably connected to the manhole cover, and the other end of which is detachably connected to the manhole cover via a quick-opening assembly. The filter screen has a barrel-shaped structure, and its bottom is connected to the inner wall of the drainage ditch via a support member. A lifting handle is provided at the top of the filter screen. This invention, employing the above-described structure, provides a drain outlet filter device with a quick-opening function and its construction method, increasing the efficiency of cleaning the filter device and drainage pipes.

Description

Technical Field

[0001] This invention relates to the field of municipal road drainage technology, and in particular to a drainage outlet filter device with quick-opening function and its construction method. Background Technology

[0002] The purpose of municipal road drainage is to effectively collect and divert surface runoff, reduce the moisture content of the roadbed soil within the road boundary to a certain limit, keep the roadbed dry, and ensure the load-bearing capacity and overall stability of the roadbed and pavement.

[0003] Existing municipal road drainage systems suffer from blockages caused by the accumulation of household waste, sand, and other debris, leading to a decrease in drainage capacity. To address this issue, designers have added drainage grates, filters, and other filtration devices during construction. However, after prolonged use, these filtration devices and drainage pipes still require cleaning. Traditional drainage filtration devices are inconvenient to open, resulting in low efficiency. To solve these problems, a new type of drainage filtration device is needed. Summary of the Invention

[0004] The purpose of this invention is to provide a drain outlet filter device with a quick-opening function and its construction method, thereby increasing the work efficiency when cleaning the filter device and drain pipes.

[0005] To achieve the above objectives, the present invention provides a drain outlet filter device with a quick-opening function, including a manhole cover located at the top of the drain ditch and a filter screen located inside the drain ditch. A filter plate is provided in the middle of the manhole cover, one end of the filter plate is rotatably connected to the manhole cover, and the other end of the filter plate is detachably connected to the manhole cover through a quick-opening assembly. The filter screen has a barrel-shaped structure, and the bottom of the filter screen is connected to the inner wall of the drain ditch through a support member. A lifting handle is provided at the top of the filter screen.

[0006] Preferably, the quick-opening assembly includes a vertical groove on the top surface of the filter plate and a horizontal groove on the side surface of the filter plate. The horizontal groove is connected to the vertical groove. A push rod is provided in the vertical groove. A vertical return spring is provided between the bottom end of the push rod and the bottom of the vertical groove. A spiral groove is provided at the bottom of the side wall of the push rod. A fixing pin corresponding to the spiral groove is provided on the inner wall of the vertical groove. A groove is provided at the top of the side wall of the push rod. One side wall of the groove is an inclined surface that is smoothly connected to the side wall of the push rod. A movable pin is provided in the horizontal groove. A horizontal return spring is provided on the end wall of the horizontal groove away from the vertical groove. The other end of the horizontal return spring is fixedly connected to a convex ring on the movable pin. A locking groove corresponding to the movable pin is provided on the manhole cover.

[0007] Preferably, the lead of the spiral groove is equal to the vertical distance from the groove to the movable pin when the vertical return spring is in its free state, and the inclined surface is the entrance and exit for the movable pin to exit and enter the groove.

[0008] Preferably, the support member is provided in at least two and evenly distributed on the inner wall of the drainage ditch at the same horizontal height. Each support member includes a fixed block, a vertical spring and a movable block. The fixed block is fixedly connected to the inner wall of the drainage ditch. The movable block is fixed to the top surface of the fixed block by the vertical spring. The top surface of the movable block is in contact with the filter screen.

[0009] Preferably, the bottom surface of the filter screen has a curved structure that is higher in the middle and lower around the edges.

[0010] Preferably, the mesh size of the filter screen is smaller than the size of the filter opening of the filter plate.

[0011] Preferably, the filter plate is rotatably connected to the manhole cover via a rotating shaft.

[0012] The construction method for a drain filter device with quick-opening function includes the following steps: Step 1: Dig multiple drainage ditches evenly along the length of the road on both sides, and connect the drainage ditches to the municipal drainage pipes; Step 2: Dig a circular trench at the top of the drainage ditch; Step 3: Cast a fixing block on the top of the inner wall of the drainage ditch, and install a vertical spring and a movable block on the fixing block; Step 4: Pour the manhole cover into the circular groove, open the filter plate, and place the filter screen on the movable block; Step 5: Reset and close the filter plate to complete the entire construction process.

[0013] Therefore, the present invention, employing the above-described structure and its quick-opening drainage outlet filter device and construction method, has the following beneficial effects: The dual filtration effect of the filter plate and filter screen can reduce the frequency of cleaning and unclogging the drain pipe; the quick-opening component allows the filter plate to be opened quickly, and the filter screen can be quickly disassembled and replaced by pulling the handle, increasing the work efficiency when cleaning the filter device and drain pipe.

[0014] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the drain outlet filter device with quick-opening function of the present invention; Figure 2 This is a cross-sectional view of an embodiment of the drain outlet filter device with quick-opening function of the present invention; Figure 3 This is a schematic diagram of an embodiment of the quick-opening component in the drain outlet filter device with quick-opening function of the present invention.

[0016] Figure Labels 1. Manhole cover; 2. Drainage ditch; 3. Filter screen; 4. Filter plate; 5. Quick-opening assembly; 51. Push rod; 52. Vertical return spring; 53. Spiral groove; 54. Fixing pin; 55. Groove; 56. Movable pin; 57. Horizontal return spring; 6. Lifting handle; 7. Support component; 71. Fixing block; 72. Vertical spring; 73. Movable block. Detailed Implementation

[0017] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Example like Figure 1-3As shown, a drain outlet filter device with a quick-opening function includes a manhole cover 1 located at the top of a drainage ditch 2 and a filter screen 3 located inside the drainage ditch 2. A filter plate 4 is provided in the middle of the manhole cover 1. One end of the filter plate 4 is rotatably connected to the manhole cover 1, such as by means of a rotating shaft. The other end of the filter plate 4 is detachably connected to the manhole cover 1 via a quick-opening assembly 5. The quick-opening assembly 5 includes a vertical groove on the top surface of the filter plate 4 and a horizontal groove on the side surface of the filter plate 4. The horizontal groove is connected to the vertical groove. A push rod 51 is provided in the vertical groove. A vertical return spring 52 is provided between the bottom end of the push rod 51 and the bottom of the vertical groove. A spiral groove 53 is provided at the bottom of the side wall of the push rod 51. A fixing pin 54 corresponding to the spiral groove 53 is provided on the inner wall of the vertical groove. When the push rod 51 descends under the action of external force or rises under the action of the vertical return spring 52, it will rotate under the interaction of the fixing pin 54 and the spiral groove 53. The top of the side wall of the push rod 51 has a groove 55, and one side wall of the groove 55 is an inclined surface that smoothly connects with the side wall of the push rod 51. A movable pin 56 is provided in the horizontal groove, and a horizontal return spring 57 is provided on the end wall of the horizontal groove away from the vertical groove. The other end of the horizontal return spring 57 is fixedly connected to the convex ring on the movable pin 56. The manhole cover 1 has a locking groove corresponding to the movable pin 56. When the tail end of the movable pin 56 contacts the side wall of the push rod 51, the head end of the movable pin 56 enters the locking groove to lock the filter plate 4. When the tail end of the movable pin 56 enters the groove 55 of the push rod 51, the head end of the movable pin 56 moves out of the locking groove to unlock the filter plate 4. The lead of the spiral groove 53 is equal to the vertical distance from the groove 55 to the movable pin 56 when the vertical return spring 52 is in the free state. The inclined surface is the entrance and exit for the movable pin 56 to exit and enter the groove 55. After the push rod 51 rotates and descends under the action of external force and the interaction of the fixing pin 54 and the spiral groove 53, when the groove 55 rotates to the horizontal groove, the movable pin 56 enters the groove 55 along the inclined surface under the action of the horizontal return spring 57. At this time, the head of the movable pin 56 moves out of the locking groove, realizing the unlocking of the filter plate 4. When the external force disappears, the push rod 51 rotates and rises under the action of the vertical return spring 52 and the interaction of the fixing pin 54 and the spiral groove 53. The movable pin 56 moves out of the groove 55 along the inclined surface. During this process, the head of the movable pin 56 moves outward under the pressure of the side wall of the push rod 51, overcoming the elastic force of the horizontal return spring 57. When the head of the movable pin 56 enters the locking groove, the filter plate 4 is locked.

[0019] The filter screen 3 has a barrel-shaped structure, with a lifting handle 6 at the top. This handle facilitates pulling the filter screen 3 out of the drain ditch 2 for cleaning and also makes it easy to put it back into the drain ditch 2. The mesh size of the filter screen 3 is smaller than the filter opening size of the filter plate 4. The filter screen 3 effectively intercepts small sand and gravel that enter the drain ditch 2, preventing blockages and reducing the frequency of drain cleaning. The bottom surface of the filter screen 3 has a curved structure, higher in the middle and lower around the edges. This curved structure allows sand and gravel to accumulate around the edges of the drain ditch 2, preventing it from affecting the overall drainage capacity of the device.

[0020] The bottom of the filter screen 3 is connected to the inner wall of the drainage ditch 2 via support members 7. At least two support members 7 are provided and evenly distributed on the inner wall of the drainage ditch 2 at the same horizontal level. Each support member 7 includes a fixed block 71, a vertical spring 72, and a movable block 73. The fixed block 71 is fixedly connected to the inner wall of the drainage ditch 2, and the movable block 73 is fixed to the top surface of the fixed block 71 by the vertical spring 72. The top surface of the movable block 73 is in contact with the filter screen 3. When debris falls onto the filter screen 3, it vibrates under the action of the vertical spring 72, further ensuring that the debris accumulates along the bottom edge of the filter screen 3.

[0021] The construction method for a drain filter device with quick-opening function includes the following steps: Step 1: Dig multiple drainage ditches 2 evenly along the length of the road on both sides, and connect the drainage ditches 2 to the municipal drainage pipes; Step 2: Dig a circular trench at the top of drainage ditch 2; Step 3: Cast a fixing block 71 on the top of the inner wall of the drainage ditch 2, and install a vertical spring 72 and a movable block 73 on the fixing block 71; Step 4: Pour the manhole cover 1 into the circular groove, press the lever 51 to quickly unlock the filter plate 4 and open it, then place the filter screen 3 on the movable block 73; Step 5: Press lever 51 again to reset and close filter plate 4, completing the entire construction process.

[0022] Therefore, the drain outlet filter device with quick-opening function and its construction method with the above-mentioned structure can reduce the frequency of cleaning and unblocking the drain pipe through the dual filtration effect of the filter plate and the filter screen. The filter plate can be quickly opened by pressing the lever in the quick-opening component, and the filter screen can be quickly disassembled and replaced by pulling the handle, thereby increasing the work efficiency when cleaning the filter device and the drain pipe.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A drain outlet filter device with quick-opening function, characterized in that: The device includes a manhole cover located at the top of a drainage ditch and a filter screen located inside the drainage ditch. The manhole cover has a filter plate in the middle, one end of which is rotatably connected to the manhole cover, and the other end of which is detachably connected to the manhole cover via a quick-opening assembly. The filter screen has a barrel-shaped structure, and the bottom of the filter screen is connected to the inner wall of the drainage ditch via a support member. The top of the filter screen has a lifting handle.

2. The drain outlet filter device with quick-opening function according to claim 1, characterized in that: The quick-opening assembly includes a vertical groove on the top surface of the filter plate and a horizontal groove on the side surface of the filter plate. The horizontal groove is connected to the vertical groove. A push rod is provided in the vertical groove. A vertical return spring is provided between the bottom end of the push rod and the bottom of the vertical groove. A spiral groove is provided at the bottom of the side wall of the push rod. A fixing pin is provided on the inner wall of the vertical groove, corresponding to the spiral groove. A groove is provided at the top of the side wall of the push rod. One side wall of the groove is an inclined surface that smoothly connects to the side wall of the push rod. A movable pin is provided in the horizontal groove. A horizontal return spring is provided on the end wall of the horizontal groove away from the vertical groove. The other end of the horizontal return spring is fixedly connected to a convex ring on the movable pin. A locking groove is provided on the manhole cover, corresponding to the movable pin.

3. The drain outlet filter device with quick-opening function according to claim 2, characterized in that: The lead of the spiral groove is equal to the vertical distance from the groove to the movable pin when the vertical return spring is in its free state, and the inclined surface is the entrance and exit for the movable pin to exit and enter the groove.

4. The drain outlet filter device with quick-opening function according to claim 3, characterized in that: The support member is provided in at least two and is evenly distributed on the inner wall of the drainage ditch at the same horizontal height. Each support member includes a fixed block, a vertical spring and a movable block. The fixed block is fixedly connected to the inner wall of the drainage ditch. The movable block is fixed to the top surface of the fixed block by the vertical spring. The top surface of the movable block is in contact with the filter screen.

5. The drain outlet filter device with quick-opening function according to claim 4, characterized in that: The bottom surface of the filter screen has a curved structure that is higher in the middle and lower around the edges.

6. The drain outlet filter device with quick-opening function according to claim 5, characterized in that: The mesh size of the filter screen is smaller than the size of the filter opening of the filter plate.

7. The drain outlet filter device with quick-opening function according to claim 6, characterized in that: The filter plate is rotatably connected to the manhole cover via a rotating shaft.

8. The construction method of the drain outlet filter device with quick-opening function according to any one of claims 1-7, characterized in that: Includes the following steps: Step 1: Dig multiple drainage ditches evenly along the length of the road on both sides, and connect the drainage ditches to the municipal drainage pipes; Step 2: Dig a circular trench at the top of the drainage ditch; Step 3: Cast a fixing block on the top of the inner wall of the drainage ditch, and install a vertical spring and a movable block on the fixing block; Step 4: Pour the manhole cover into the circular groove, press the lever to quickly unlock the filter plate and open it, then place the filter screen on the movable block; Step 5: Press the lever again to reset and close the filter plate, completing the entire construction process.

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