Anti-backflow device for drainage hole of anti-flood wall

Abstract

The invention relates to the technical field of anti-backflow devices, in particular to an anti-backflow device for a drain hole of an anti-flood wall, which comprises a conveying pipe and a drain pipe, the lower end of the conveying pipe is fixedly connected with a first mounting block, and the upper surface of the drain pipe is fixedly connected with a second mounting block. Mounting plates are fixedly connected to the first mounting block and the second mounting block, the two mounting plates are rotationally connected through a rotating shaft, connecting holes are formed in the first mounting block and the second mounting block in a penetrating mode, and a corrugated pipe is jointly and fixedly connected between the first mounting block and the second mounting block; the device has the beneficial effects that when flood which can cause backward flowing height occurs, the flood can impact a baffle, the baffle drives a gear to rotate through transmission, the gear is matched with a rack to drive a connecting pipe to ascend, and supporting on a second mounting block is relieved; and the second mounting block and the drainage pipe incline towards the flowing direction under the impact of flood, so that the flood is prevented from flowing backwards.

Description

Technical Field

[0001] This invention relates to the field of backflow prevention devices, specifically a backflow prevention device for drainage holes in flood control walls. Background Technology

[0002] A flood control wall is a concrete or masonry structure built to ensure flood safety in towns, important industrial and mining enterprises, along rivers, and coastal areas (including some seawalls) or to meet other special requirements. Also known as a flood barrier, its function is the same as that of a flood dike. Flood control walls are mainly of two types: reinforced concrete walls and masonry walls. The advantages of flood control walls are primarily that they save land, facilitate overall urban planning, and create a new landscape along with modern roads, overpasses, buildings of varying heights, and other structures; they also facilitate modern management. Based on the needs of urban and transportation development, urban flood control walls will see further development.

[0003] During the construction of flood control walls, drainage holes need to be reserved on the wall for drainage behind the wall. However, during the flood season, when the flood level rises, the water surface will submerge the drainage holes, causing floodwater to backflow into the inside of the flood control wall, which will seriously affect the stability of the buildings inside the flood control wall and people's production and life. Therefore, it is necessary to propose a backflow prevention device for the drainage holes of flood control walls. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a backflow prevention device for drainage holes in flood control walls.

[0005] The technical solution adopted by this invention to solve its technical problem is: a backflow prevention device for drainage holes in a flood control wall, comprising a conveying pipe and a drainage pipe. A first mounting block is fixedly connected to the lower end of the conveying pipe, and a second mounting block is fixedly connected to the upper surface of the drainage pipe. Mounting plates are fixedly connected to both the first and second mounting blocks, and the two mounting plates are rotatably connected via a rotating shaft. A connecting hole is provided through both the first and second mounting blocks. A corrugated pipe is fixedly connected between the first and second mounting blocks, and a connecting pipe is slidably connected within both connecting holes. The connecting hole on the mounting block has a mounting groove on its wall. A rotating rod is rotatably connected to the mounting groove, and a gear is fixedly sleeved on the rotating rod. A groove is formed on the outer wall of the connecting pipe, and a rack is fixedly connected to the groove. A mounting rod is rotatably connected to the groove wall of the mounting groove via a bearing. One end of the mounting rod extends into the mounting groove and is fixedly connected to a first bevel gear. A second bevel gear is fixedly sleeved on the rotating rod. The first bevel gear and the second bevel gear are meshed together. The other end of the mounting rod extends out of the first mounting block and is fixedly connected to a turntable. A baffle is fixedly connected to the turntable.

[0006] Specifically, two sliding grooves are opened in the connecting hole on the conveying pipe and the first mounting block, and a slider is slidably connected in the sliding groove, and the slider is fixedly connected to the connecting pipe.

[0007] Specifically, the two connecting holes are respectively connected to the conveying pipe and the drain pipe, and the two connecting holes are connected by a corrugated pipe.

[0008] Specifically, one end of the connecting pipe is located in the connecting hole of the first mounting block, and the other end of the connecting pipe is located in the connecting hole of the second mounting block.

[0009] Specifically, one end of the gear extends into the groove and meshes with the rack.

[0010] Specifically, the end of the conveying pipe furthest from the first mounting block is the water inlet, and the end of the conveying pipe furthest from the first mounting block is inclined.

[0011] Specifically, the connecting pipe is sleeved inside the corrugated pipe, and the mounting plate is disposed on one side of the corrugated pipe.

[0012] The beneficial effects of the present invention are as follows: When a flood occurs that would cause backflow, the flood will impact the baffle. The baffle will rotate through the transmission drive gear, and the gear will drive the connecting pipe to rise through the cooperation with the rack. After the connecting pipe is separated from the second mounting block, the second mounting block and the drainage pipe will lose their support, causing the second mounting block and the drainage pipe to tilt in the direction of the flood flow under the impact of the flood, thereby preventing the flood from backflowing in. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 A schematic diagram of the external structure of a backflow prevention device for a flood control wall drainage hole, provided by the present invention, in its normal state; Figure 2 A schematic diagram of the external structure of a backflow prevention device for a flood control wall drainage hole provided by the present invention in the form of a backflow prevention state; Figure 3 An internal sectional view of a backflow prevention device for a flood control wall drainage hole, provided by the present invention, in its normal state; Figure 4 An internal sectional view of the anti-backflow state of a flood control wall drainage hole anti-backflow device provided by the present invention; Figure 5 Top internal sectional view of a backflow prevention device for drainage holes in a flood control wall provided by the present invention; Figure 6 This invention provides a schematic diagram of the connecting pipe of a flood control wall drainage hole anti-backflow device.

[0015] In the diagram: 1. Conveying pipe; 2. Drainage pipe; 3. First mounting block; 4. Second mounting block; 5. Mounting plate; 6. Connecting hole; 7. Corrugated pipe; 8. Connecting pipe; 9. Mounting groove; 10. Rotating rod; 11. Gear; 12. Groove; 13. Rack; 14. Mounting rod; 15. First bevel gear; 16. Second bevel gear; 17. Turntable; 18. Baffle; 19. Slide groove; 20. Slider. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0017] like Figures 1-6 As shown, the present invention provides the following technical solution: Example 1: A backflow prevention device for drainage holes in a flood control wall includes a delivery pipe 1 and a drainage pipe 2. A first mounting block 3 is fixedly connected to the lower end of the delivery pipe 1, and a second mounting block 4 is fixedly connected to the upper surface of the drainage pipe 2. Mounting plates 5 are fixedly connected to both the first and second mounting blocks 3 and 4, and the two mounting plates 5 are rotatably connected via a rotating shaft. A connecting hole 6 is provided through both the first and second mounting blocks 3 and 4. A corrugated pipe 7 is fixedly connected between the first and second mounting blocks 3 and 4. A connecting pipe 8 is slidably connected within both connecting holes 6. An installation... The mounting groove 9 is rotatably connected to a rotating rod 10, and a gear 11 is fixedly sleeved on the rotating rod 10. A groove 12 is opened on the outer wall of the connecting pipe 8, and a rack 13 is fixedly connected in the groove 12. A mounting rod 14 is rotatably connected to the groove wall of the mounting groove 9 through a bearing. One end of the mounting rod 14 extends into the mounting groove 9 and is fixedly connected to a first bevel gear 15. A second bevel gear 16 is fixedly sleeved on the rotating rod 10. The first bevel gear 15 and the second bevel gear 16 are meshed. The other end of the mounting rod 14 extends out of the first mounting block 3 and is fixedly connected to a turntable 17. A baffle 18 is fixedly connected to the turntable 17. Two sliding grooves 19 are opened in the connecting hole 6 on the conveying pipe 1 and the first mounting block 3. A slider 20 is slidably connected in the sliding groove 19 and the slider 20 is fixedly connected to the connecting pipe 8. When using it, the following steps are included: S1: Install the conveying pipe 1 on the flood control wall. When no flood occurs, the water in the flood control wall enters through the upper end of the conveying pipe 1, enters the connecting pipe 8 along the conveying pipe 1, and is then conveyed to the drain pipe 2 through the connecting pipe 8. The water is then discharged through the drain pipe 2. S2: When a flood occurs, the floodwater will first come into contact with the baffle 18 before reaching the height of backflow. As the floodwater flows, it will impact the baffle 18, causing the baffle 18 to rotate. The baffle 18 will drive the turntable 17 to rotate, and the turntable 17 will drive the mounting rod 14 to rotate. The mounting rod 14 will drive the first bevel gear 15 to rotate. The first bevel gear 15 will drive the rotating rod 10 to rotate through meshing with the second bevel gear 16. The rotating rod 10 will drive the gear 11 to rotate, and the gear 11 will drive the connecting pipe 8 to rise through meshing with the rack 13. S3: The connecting pipe 8 will continue to rise into the conveying pipe 1, and the lower end of the connecting pipe 8 will disengage from the connecting hole 6, thereby releasing the support of the second mounting block 4 and the drain pipe 2. At this time, the flowing flood will impact the second mounting block 4 and the drain pipe 2, causing the second mounting block 4 and the drain pipe 2 to tilt in the direction of the flood flow, so that the flood cannot flow back into the drain pipe 2, and thus cannot flow back into the flood wall. S4: The second mounting block 4 and the drain pipe 2 will rotate based on the pivot on the mounting plate 5, and at the same time drive the corrugated pipe 7 to bend, and replace the connecting pipe 8 through the corrugated pipe 7. Meanwhile, the mounting plate 5 will block the flood and prevent the flowing flood from directly impacting the corrugated pipe 7 and causing it to be damaged. S5: Water inside the flood control wall enters through the upper opening of the conveying pipe 1, and then enters the corrugated pipe 7 through the conveying pipe 1, and then enters the drainage pipe 2 through the corrugated pipe 7, while the outflowing water is discharged along with the flood.

[0018] Example 2: The technical solutions in this example that differ from Example 1 include: Two connecting holes 6 are respectively connected to the conveying pipe 1 and the drain pipe 2, and the two connecting holes 6 are connected by a corrugated pipe 7. One end of the connecting pipe 8 is located in the connecting hole 6 of the first mounting block 3, and the other end of the connecting pipe 8 is located in the connecting hole 6 of the second mounting block 4. The end of the conveying pipe 1 away from the first mounting block 3 is the water inlet, and the end of the conveying pipe 1 away from the first mounting block 3 is inclined. Water in the flood control wall enters through the upper end of the conveying pipe 1, flows down along the inclined conveying pipe 1 and enters the connecting pipe 8, and then is transported through the connecting pipe 8. The water is fed into the drain pipe 2 and finally discharged through the drain pipe 2. One end of the gear 11 extends into the groove 12 and meshes with the rack 13. When the gear 11 rotates, it will drive the rack 13 to rise through meshing, which in turn drives the connecting pipe 8 to rise. The connecting pipe 8 is sleeved inside the corrugated pipe 7. During normal use, water is transported through the internal connecting pipe 8. In case of flood, the flood is discharged through the flexible corrugated pipe 7. The mounting plate 5 is set on one side of the corrugated pipe 7. The mounting plate 5 blocks the flood and protects the corrugated pipe 7.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A backflow prevention device for drainage holes in a flood control wall, comprising a conveying pipe (1) and a drainage pipe (2), characterized in that, The lower end of the conveying pipe (1) is fixedly connected to a first mounting block (3), and the upper surface of the drain pipe (2) is fixedly connected to a second mounting block (4). Mounting plates (5) are fixedly connected to both the first mounting block (3) and the second mounting block (4). The two mounting plates (5) are rotatably connected by a rotating shaft. A connecting hole (6) is provided through the first mounting block (3) and the second mounting block (4). A corrugated pipe (7) is fixedly connected between the first mounting block (3) and the second mounting block (4). A connecting pipe (8) is slidably connected in both connecting holes (6). A mounting groove (9) is provided on the wall of the connecting hole (6) on the first mounting block (3). A rotating rod is rotatably connected in the mounting groove (9). (10), a gear (11) is fixedly sleeved on the rotating rod (10), a groove (12) is provided on the outer wall of the connecting pipe (8), a rack (13) is fixedly connected in the groove (12), an installation rod (14) is rotatably connected to the groove wall of the installation groove (9) through a bearing, one end of the installation rod (14) extends into the installation groove (9) and is fixedly connected to a first bevel gear (15), a second bevel gear (16) is fixedly sleeved on the rotating rod (10), the first bevel gear (15) and the second bevel gear (16) mesh with each other, the other end of the installation rod (14) extends out of the first installation block (3) and is fixedly connected to a turntable (17), a baffle (18) is fixedly connected to the turntable (17).

2. The anti-backflow device for drainage holes in a flood control wall according to claim 1, characterized in that: Two sliding grooves (19) are opened in the connecting hole (6) on the conveying pipe (1) and the first mounting block (3). A slider (20) is slidably connected in the sliding groove (19), and the slider (20) is fixedly connected to the connecting pipe (8).

3. The backflow prevention device for drainage holes in a flood control wall according to claim 1, characterized in that: The two connecting holes (6) are respectively connected to the conveying pipe (1) and the drain pipe (2), and the two connecting holes (6) are connected by a corrugated pipe (7).

4. The anti-backflow device for drainage holes in a flood control wall according to claim 1, characterized in that: One end of the connecting pipe (8) is located in the connecting hole (6) of the first mounting block (3), and the other end of the connecting pipe (8) is located in the connecting hole (6) of the second mounting block (4).

5. A backflow prevention device for drainage holes in a flood control wall according to claim 1, characterized in that: One end of the gear (11) extends into the groove (12) and meshes with the rack (13).

6. The backflow prevention device for drainage holes in a flood control wall according to claim 1, characterized in that: The end of the conveying pipe (1) away from the first mounting block (3) is the water inlet, and the end of the conveying pipe (1) away from the first mounting block (3) is inclined.

7. The backflow prevention device for drainage holes in a flood control wall according to claim 1, characterized in that: The connecting pipe (8) is sleeved inside the corrugated pipe (7), and the mounting plate (5) is located on one side of the corrugated pipe (7).

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