Anti-backflow rainwater discharge outlet structure

Abstract

The structure comprises a water inlet pipe, one side of the water inlet pipe is fixedly connected with a water drainage pipe, a limiting plate is arranged in the inner wall of the water drainage pipe, a circulation opening is formed in the limiting plate, a floating ball is arranged in the water drainage pipe, and the center size of the floating ball is larger than that of the circulation opening; a connecting rod is fixedly connected to one end of the floating ball, a supporting rod is arranged on the water inlet pipe, a movable groove is formed in the supporting rod, one end of the connecting rod penetrates through the movable groove, an anti-falling plate is arranged on one side of the movable groove, the size of the anti-falling plate is larger than that of the movable groove, and a first bolt is arranged on the anti-falling plate. According to the anti-backflow rainwater discharge outlet structure, the problem that when the external water level rises, backflow happens to a water discharge outlet in a low-lying area is solved, sewage is prevented from flowing backwards to the ground, pollution to the environment is prevented, and bad influences on people living around are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to rainwater drainage field, especially rainwater drainage outlet structure of preventing backflow. BACKGROUND

[0002] In the city, rainwater collected by the city is discharged to the designated place through the drainage system, effectively handles and removes the accumulated water caused by rainfall, and avoids the influence of waterlogging on the urban environment, infrastructure and residents' life. A good rainwater drainage system not only prevents urban waterlogging, but also reduces pollution.

[0003] As disclosed in the rainwater drainage outlet of the Chinese patent with the authorized announcement number CN220080237U, the flow resistance plate and the support ring are cast in the box culvert, and the filter plate is placed on the support ring, which solves the problem that floating objects easily cause the drainage outlet of the box culvert to be blocked; but when the drainage system is arranged in a low-lying area, the drainage outlet is easily affected by external water bodies, especially when the external water level rises, the drainage outlet in the low-lying area may backflow, and the device does not have anti-backflow equipment, which causes sewage to flow back to the ground, pollutes the environment, and has a bad influence on people living around. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide rainwater drainage outlet structure that can effectively solve the technical problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] The rainwater drainage outlet structure that prevents backflow includes a water inlet pipe, a drainage pipe fixedly connected to one side of the water inlet pipe, a limiting plate arranged on the inner wall of the drainage pipe, a flow-through opening formed on the limiting plate, a floating ball arranged in the drainage pipe, and the center size of the floating ball being greater than that of the flow-through opening; one end of the floating ball is fixedly connected to a connecting rod, a support rod is arranged on the water inlet pipe, a movable slot is formed on the support rod, one end of the connecting rod penetrates through the movable slot, a anti-dropping plate is arranged on one side of the movable slot, the size of the anti-dropping plate is greater than that of the movable slot, a first bolt is arranged on the anti-dropping plate, a threaded groove is formed on the connecting rod, and one end of the first bolt is threadedly connected with the threaded groove.

[0007] As a further scheme of the utility model, a cover plate is arranged on the top of the water inlet pipe, a plurality of water inlet openings are formed on the cover plate, and the plurality of water inlet openings are distributed in an equidistant array.

[0008] As a further scheme of the utility model, a filter screen is arranged on the cover plate, and the size of the filter screen is consistent with that of the cover plate.

[0009] As a further scheme of the present utility model, the cover plate is rotatably connected with a rotating rod on one side, the rotating rod penetrates the filter screen, and the rotating rod is fixedly connected with a rotating handle at the top.

[0010] As a further scheme of the present utility model, the rotating rod is connected with a cleaning plate, and the cleaning plate is connected with a plurality of cleaning rods on one side.

[0011] As a further scheme of the present utility model, the cover plate is fixedly connected with two groups of connecting plates, and the two groups of connecting plates are symmetrically distributed about the central axis of the cover plate.

[0012] As a further scheme of the present utility model, the connecting plate is connected with a second bolt, and one end of the second bolt is threadedly connected with the water inlet pipe.

[0013] The present utility model has the following beneficial effects:

[0014] The water inlet pipe is arranged on the top of the water inlet pipe, and the cover plate is arranged on the water inlet pipe, so that the rainwater can enter the water inlet pipe through the water inlet pipe and the flow-through opening of the limiting plate, and then flow into the drain pipe to be discharged.

[0015] The water inlet pipe is arranged on the top of the water inlet pipe, and the cover plate is arranged on the water inlet pipe, so that the rainwater can enter the water inlet pipe through the water inlet pipe and the flow-through opening of the limiting plate, and then flow into the drain pipe to be discharged. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the anti-backflow rainwater discharge structure of the present utility model.

[0017] Figure 2 It is a sectional view of the anti-backflow rainwater discharge structure of the present utility model.

[0018] Figure 3 It is a sectional view of the anti-backflow rainwater discharge structure of the present utility model. Figure 2Sectional view;

[0019] Figure 4 The utility model discloses a rainwater discharge port structure of anti -backflow Figure 3 Sectional view;

[0020] Figure 5 The utility model discloses a rainwater discharge port structure of anti -backflow Figure 2 Enlarged view of middle A;

[0021] Figure 6 The utility model discloses a rainwater discharge port structure of anti -backflow Figure 4 Enlarged view of middle B.

[0022] In the drawing: 1, inlet pipe, 2, drain pipe, 3, limiting plate, 4, flow-through port, 5, float ball, 6, connecting rod, 7, support rod, 8, movable slot, 9, anti -drop plate, 10, first bolt, 11, cover plate, 12, water inlet, 13, filter screen, 14, rotating rod, 15, cleaning plate, 16, handle, 17, cleaning rod, 18, connecting plate, 19, second bolt. DETAILED DESCRIPTION

[0023] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0024] As Figures 1-6 The utility model discloses a rainwater discharge port structure of anti -backflow, including inlet pipe 1, the one side fixed connection of inlet pipe 1 has drain pipe 2, the inner wall of drain pipe 2 is provided with limiting plate 3, is set up in limiting plate 3 and has flow-through port 4, is provided with float ball 5 in drain pipe 2, and the center size of float ball 5 is greater than flow-through port 4, and the one end fixed connection of float ball 5 has connecting rod 6, is provided with support rod 7 on inlet pipe 1, is set up in the movable slot 8 of support rod 7, and the one end of connecting rod 6 penetrates movable slot 8.

[0025] In the embodiment, movable slot 8 one side is provided with anti -drop plate 9, and the size of anti -drop plate 9 is greater than movable slot 8, and is provided with first bolt 10 on anti -drop plate 9, and is set up in the screw groove of connecting rod 6, and one end of first bolt 10 is connected with screw groove threadedly.

[0026] When rainwater needs to be discharged, rainwater enters through the inlet pipe 1, flows into the drain pipe 2 through the flow port 4 opened by the limiting plate 3 to complete the discharge, and is fixedly connected with the connecting rod 6 through the first bolt 10 and the threaded groove threaded connection, when the rainwater in the drain pipe 2 flows backward, the rainwater will lift the float ball 5, and the connecting rod 6 moves upward through the movable slot 8, because the center size of the float ball 5 is larger than the flow port 4, the float ball 5 will close the flow port 4, to avoid the rainwater in the drain pipe 2 flowing backward into the inlet pipe 1; to solve the problem of backflow of the drainage outlet in low-lying areas when the external water level rises, to avoid sewage backflow to the ground, to prevent pollution to the environment, and to avoid bad influence on people around; at the same time, the supporting rod 7 cooperates with the connecting rod 6 and the anti-drop plate 9 to support the float ball 5, to avoid the float ball 5 from falling.

[0027] In the embodiment, the top of the inlet pipe 1 is provided with a cover plate 11, a plurality of water inlets 12 are opened on the cover plate 11, and the plurality of water inlets 12 are distributed in an equal interval array, and a filter screen 13 is arranged on the cover plate 11, and the size of the filter screen 13 is consistent with that of the cover plate 11.

[0028] By arranging the cover plate 11 on the top of the inlet pipe 1 and cooperating with the water inlets 12, it is convenient for rainwater to enter the inlet pipe 1, and the sundries are intercepted, and by arranging the filter screen 13 on the cover plate 11, the sundries in the rainwater are further intercepted, to avoid blockage in the drain pipe 2.

[0029] In the embodiment, the cover plate 11 is rotatably connected with a rotating rod 14 on one side, the rotating rod 14 penetrates the filter screen 13, the top of the rotating rod 14 is fixedly connected with a rotating handle 16, the rotating rod 14 is connected with a cleaning plate 15, one side of the cleaning plate 15 is connected with a plurality of cleaning rods 17, and the plurality of cleaning rods 17 are distributed in an equal interval array.

[0030] The rotating handle 16 drives the rotating rod 14 to rotate, the rotating rod 14 drives the cleaning plate 15 to rotate when rotating, the cleaning plate 15 drives the plurality of cleaning rods 17 to rotate at the same time, and the cleaning plate 15 cooperates with the plurality of cleaning rods 17 to clean the sundries intercepted on the filter screen 13, so that the rainwater flows into the inlet pipe 1 and is convenient for discharging the rainwater.

[0031] In the embodiment, two groups of connecting plates 18 are fixedly connected to the cover plate 11, the two groups of connecting plates 18 are symmetrically distributed about the central axis of the cover plate 11, the connecting plate 18 is connected with a second bolt 19, and one end of the second bolt 19 is threadedly connected with the inlet pipe 1.

[0032] The second bolt 19 is connected with the inlet pipe 1, so that the connecting plate 18 is fixedly connected with the inlet pipe 1, and the cover plate 11 is firmly fixed above the inlet pipe 1.

[0033] It should be noted that the utility model discloses a backflow prevention rainwater discharge port structure, when rainwater needs to be discharged, rainwater enters through the water inlet pipe 1, flows into the drain pipe 2 through the flow passage 4 formed by the limiting plate 3 to complete the discharge, the anti-dropping plate 9 is fixedly connected with the connecting rod 6 through the first bolt 10 and the threaded groove, when the rainwater in the drain pipe 2 backflows, the rainwater lifts the float ball 5, and the connecting rod 6 moves upward through the movable groove 8, because the center size of the float ball 5 is greater than the flow passage 4, the float ball 5 closes the flow passage 4, avoiding that the rainwater in the drain pipe 2 backflows into the water inlet pipe 1, meanwhile, the second bolt 19 is connected with the water inlet pipe 1, the connecting plate 18 is fixedly connected with the water inlet pipe 1, the cover plate 11 is fixedly arranged above the water inlet pipe 1, and the cover plate 11 is used for intercepting sundries, the filter screen 13 is arranged on the cover plate 11, the filter screen 13 is further used for intercepting the sundries in the rainwater, and the drain pipe 2 is prevented from being blocked, when the sundries are accumulated on the filter screen 13, the rotating rod 14 is rotated through the handle 16, the cleaning plate 15 is rotated when the rotating rod 14 rotates, the cleaning plate 15 is rotated through the plurality of cleaning rods 17, the filter screen 13 is cleaned through the cleaning plate 15 and the plurality of cleaning rods 17, and the rainwater flows into the water inlet pipe 1.

[0034] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification only illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A backflow-proof rainwater discharge structure, comprising a water inlet pipe (1), one side of the water inlet pipe (1) being fixedly connected with a drain pipe (2), characterized in that: The limiting plate (3) is arranged in the inner wall of the drain pipe (2), and the flow-through opening (4) is arranged on the limiting plate (3); the drain pipe (2) is provided with the floating ball (5), and the center size of the floating ball (5) is greater than that of the flow-through opening (4); One end of the floating ball (5) is fixedly connected with the connecting rod (6), the water inlet pipe (1) is provided with the supporting rod (7), the supporting rod (7) is provided with the movable slot (8), one end of the connecting rod (6) penetrates through the movable slot (8), the movable slot (8) is provided with the anti-dropping plate (9) on one side, the size of the anti-dropping plate (9) is greater than that of the movable slot (8), the first bolt (10) is arranged on the anti-dropping plate (9), the connecting rod (6) is provided with the threaded groove, and one end of the first bolt (10) is screwed with the threaded groove.

2. The anti-backflow rainwater discharge structure according to claim 1, characterized in that: The water inlet pipe (1) is provided with the cover plate (11) on the top, a plurality of water inlets (12) are arranged on the cover plate (11), and the plurality of water inlets (12) are distributed in an equidistant array.

3. A reverse flow resistant rainwater discharge structure according to claim 2, wherein: The cover plate (11) is provided with the filter screen (13), and the size of the filter screen (13) is consistent with that of the cover plate (11).

4. The anti-backflow rainwater discharge structure according to claim 2, characterized by: One side of the cover plate (11) is rotatably connected with the rotating rod (14), the rotating rod (14) penetrates through the filter screen (13), and the rotating rod (14) is fixedly connected with the rotating handle (16) on the top.

5. A reverse flow preventing rainwater discharge structure according to claim 4, characterized in that: The rotating rod (14) is connected with the cleaning plate (15), one side of the cleaning plate (15) is connected with a plurality of cleaning rods (17), and the plurality of cleaning rods (17) are distributed in an equidistant array.

6. The anti-backflow rainwater discharge structure according to claim 2, characterized by: The cover plate (11) is fixedly connected with two groups of connecting plates (18), and the two groups of connecting plates (18) are symmetrically distributed about the central axis of the cover plate (11).

7. A reverse flow resistant rainwater discharge structure according to claim 6, wherein: The connecting plate (18) is connected with the second bolt (19), and one end of the second bolt (19) is screwed with the water inlet pipe (1).

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