A flap type flow distribution mechanism for a flow distribution well

Abstract

The utility model discloses a kind of turnplate type shunting mechanisms for shunting well, it is related to shunting well technical field, to solve the technical problem that current water flow impact causes turnplate opening and closing difficulty is greater, including weir gate frame and weir gate frame inside rotation installation turnplate gate, the outside of turnplate gate is provided with pressure relief device, the pressure relief device includes two first pressure relief holes, the pressure relief device further includes driving mechanism and the plugging mechanism in first pressure relief hole interior, the driving mechanism includes linkage shaft and two groups eccentric wheels, gear is connected with the both ends of linkage shaft, the plugging mechanism includes conical plugging column, second pressure relief hole and plugging plate, the second pressure relief hole is set in conical plugging column interior.The utility model has pressure relief device and turnplate gate linkage, double pressure relief passage automatically adjusts water flow pressure, significantly reduces opening and closing resistance, protects driving and gate structure, improves operating stability and service life, while guaranteeing the advantages such as sealing performance and shunting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of diversion well technology, and more specifically, to a flap-type diversion mechanism for diversion wells. Background Technology

[0002] A diversion well is a device used to separate, guide, or regulate water flow. It typically has multiple inlets and outlets, distributing fluids to different pipes or containers according to varying needs. A diversion well mainly includes the well body, power unit, drainage gate, intercepting and restricting valve, monitoring unit, water level monitoring system, water quality monitoring system, and integrated measurement and control terminal. On sunny days, dry sewage flows into the well, the intercepting gate opens, and the overflow gate closes, allowing sewage to flow into the sewage network. When rainfall increases and reaches a set value, the intercepting gate closes, the overflow gate opens, and rainwater flows into the rainwater network. A flap-type diversion mechanism is a commonly used diversion device in diversion wells, using the rotation of the flap to switch and divert water flow.

[0003] Current flap-type diversion mechanisms block the water flow channel by flapping and open or close the channel by adjusting the flapping's flipping state using a drive mechanism. However, they have a significant drawback: the flapping is difficult to open and close due to water flow impact. During the opening and closing process, the impact force of the water flow directly acts on the flapping, and both the drive mechanism and the flapping bear a large impact force, which puts additional load on the drive mechanism, the flapping, and the connecting parts, making the flapping difficult to open and close. In view of this, we propose a flap-type diversion mechanism for diversion wells. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the actual needs, and provide a flap-type diversion mechanism for diversion wells to solve the technical problem that the flap opening and closing is difficult due to the impact of water flow.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a flap-type diversion mechanism for a diversion well, including a weir gate frame and a flap gate rotatably installed inside the weir gate frame. A pressure relief device is provided on the outside of the flap gate. The pressure relief device includes two first pressure relief holes, both of which are opened on the outer wall of the flap gate, and the first pressure relief holes adopt a through-type design. The pressure relief device also includes a drive mechanism and a sealing mechanism inside the first pressure relief hole. The drive mechanism includes a linkage shaft and two sets of eccentric wheels. Both ends of the linkage shaft are pin-connected to gears, and both sets of eccentric wheels are fixedly connected to the outer wall of the linkage shaft. The sealing mechanism includes a conical sealing column, a second pressure relief hole, and a sealing plate. The conical sealing column is located inside the first pressure relief hole, and the inner wall size of the first pressure relief hole is adapted to the outer wall size of the conical sealing column. The eccentric wheel is in contact with the outer wall of the conical sealing column. The second pressure relief hole is opened inside the conical sealing column, and the sealing plate is located at the liquid inlet end of the second pressure relief hole.

[0006] Preferably, the pressure relief device further includes a fixing frame, which is screwed to the drainage surface of the flap gate, the linkage shaft is rotatably installed inside the fixing frame, an assembly frame is fixedly connected to the bottom surface of the fixing frame, and support frames are fixedly connected to both sides of the outer wall of the assembly frame.

[0007] Preferably, the driving mechanism further includes two receiving slots, both of which are formed on the inner wall of the weir frame. Each receiving slot has two oppositely arranged arc surfaces, the axes of which coincide and their openings are opposite to each other. The two arc surfaces form the cavity of the receiving slot, and the gear is located inside the cavity of the receiving slot. Each of the two arc surfaces is provided with a plurality of racks, and the gear meshes with the racks.

[0008] Preferably, a fixed shaft is provided inside the second pressure relief hole, the sealing plate is fixedly connected to the end of the fixed shaft, the axis of the sealing plate coincides with that of the fixed shaft, and a sealing ring is fixedly connected to the outer wall of the sealing plate facing the fixed shaft, and the sealing ring is in contact with the outer surface of the conical sealing column.

[0009] Preferably, guide plates are fixedly connected to the outer walls on both sides of the fixed shaft. The ends of the guide plates away from the fixed shaft are designed with an arc shape. Guide grooves adapted to the shape of the ends of the fixed shaft are opened on both sides of the inner wall of the second pressure relief hole. The ends of the guide plates are slidably installed inside the guide grooves.

[0010] Preferably, the fixed shaft has an assembly part at the end away from the sealing plate, the assembly part protrudes outside the second pressure relief hole, and the fixed shaft is connected to the support frame by screws through the assembly part.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model designs a linkage structure between the pressure relief device and the flap gate. The gear and rack mesh to drive the linkage shaft to rotate, the eccentric wheel releases the pressure on the conical sealing column, and the water flow pressure pushes the sealing column to move, so that the first pressure relief hole and the second pressure relief hole open in sequence, forming a double pressure relief channel, which significantly reduces the water flow resistance and achieves the effect of automatically adjusting the water flow pressure during the opening and closing of the flap gate, solving the current problem that the flap gate is difficult to open and close due to water flow impact.

[0012] 2. This utility model also designs a mechanism where, when the gate is near the fully open or closed position, the gear meshes with the rack on the other side, causing the linkage shaft to rotate in the opposite direction. The eccentric wheel then pushes the conical sealing column back to its original position, resealing the pressure relief hole. This ensures the sealing performance and water flow stability of the gate during operation. Furthermore, a double pressure relief channel is formed during the movement of the flap gate, which not only reduces water flow resistance but also maintains the pressure relief state during the resetting of the conical sealing column. This ensures the smoothness and reliability of the entire operation process and further solves the problem of traditional flap-type diversion mechanisms being greatly affected by water flow impact. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of the weir gate frame of this utility model; Figure 2 This is a schematic diagram showing the disassembled structure of the weir gate frame of this utility model; Figure 3 This is a schematic diagram of the flip-up gate structure of this utility model; Figure 4 This is a partial side view of the weir gate frame structure of this utility model; Figure 5 This is an enlarged schematic diagram of the pressure relief device structure of this utility model; Figure 6 This is a partially enlarged schematic diagram of the drive mechanism structure of this utility model; Figure 7 This is a schematic diagram showing the disassembled structure of the fixing frame of this utility model; Figure 8 This is a schematic diagram showing the disassembled structure of the sealing mechanism of this utility model; Figure 9 This is an enlarged schematic diagram of the fixed shaft structure of this utility model.

[0014] The following are the labels in the diagram: 1. Weir gate frame; 11. Flip gate; 2. Pressure relief device; 21. Fixing frame; 22. Assembly frame; 23. Support frame; 24. First pressure relief hole; 3. Drive mechanism; 31. Linkage shaft; 32. Gear; 33. Eccentric wheel; 34. Collection groove; 35. Rack; 4. Sealing mechanism; 41. Conical sealing column; 42. Second pressure relief hole; 43. Fixing shaft; 44. Guide plate; 45. Sealing plate; 46. Sealing ring; 47. Assembly part. Detailed Implementation

[0015] like Figures 1 to 9As shown, this utility model relates to a flap-type diversion mechanism for a diversion well, including a weir gate frame 1 and a flap gate 11 rotatably installed inside the weir gate frame 1. A pressure relief device 2 is provided on the outside of the flap gate 11. The pressure relief device 2 includes two first pressure relief holes 24, both of which are opened on the outer wall of the flap gate 11 and adopt a through-hole design. The pressure relief device 2 also includes a drive mechanism 3 and a sealing mechanism 4 inside the first pressure relief holes 24. The drive mechanism 3 includes a linkage shaft 31 and two sets of eccentric wheels 33. Both ends of the linkage shaft 31 are pin-connected to gears 32. Two sets of eccentric wheels 33 are fixedly connected to the outer wall of the linkage shaft 31. The sealing mechanism 4 includes a conical sealing column 41, a second pressure relief hole 42, and a sealing plate 45. The conical sealing column 41 is located inside the first pressure relief hole 24, and the inner wall size of the first pressure relief hole 24 is adapted to the outer wall size of the conical sealing column 41. The eccentric wheel 33 is in contact with the outer wall of the conical sealing column 41. The second pressure relief hole 42 is opened inside the conical sealing column 41, and the sealing plate 45 is located at the liquid inlet end of the second pressure relief hole 42. The pressure relief device 2 is linked with the flap gate 11. The dual pressure relief channels automatically adjust the water flow pressure, significantly reduce the opening and closing resistance, protect the drive and gate structure, improve operational stability and service life, and at the same time ensure sealing performance and diversion efficiency.

[0016] Specifically, the pressure relief device 2 also includes a fixing frame 21, which is screwed to the drainage surface of the flap gate 11. The linkage shaft 31 is rotatably installed inside the fixing frame 21. An assembly frame 22 is fixedly connected to the bottom surface of the fixing frame 21, and support frames 23 are fixedly connected to both sides of the outer wall of the assembly frame 22. The fixing frame 21 can ensure the stability of the position of the assembly frame 22 and the support frame 23 outside the flap gate 11, and can also ensure a stable connection between the drive mechanism 3 and the flap gate 11, and provide reliable rotational support for the linkage shaft 31. The assembly frame 22 and the support frame 23 can provide support for the sealing mechanism 4, ensuring the stable movement of the conical sealing column 41.

[0017] Furthermore, the drive mechanism 3 also includes two receiving slots 34, both of which are opened on the inner wall of the weir frame 1. Each receiving slot 34 has two oppositely arranged arc surfaces, the axes of which coincide and their openings are opposite to each other. The two arc surfaces form the cavity of the receiving slot 34. The gear 32 is located inside the cavity of the receiving slot 34. Each of the two arc surfaces is provided with several racks 35, and the gear 32 meshes with the racks 35. Through the meshing of gear 32 and rack 35, when the flap gate 11 initially rotates, the linkage shaft 31 can be synchronously driven to rotate, realizing the driving function of the eccentric wheel 33. This causes the positions of the protruding part and the shaft center part of the eccentric wheel 33 to be interchanged, thereby disengaging the protruding part from the support of the conical sealing column 41. The conical sealing column 41 is pushed towards the linkage shaft 31 by the pressure of the liquid on the water-facing side of the flap gate 11 until the entire conical sealing column 41 is disengaged from the first pressure relief hole 24. At this time, since the position of the sealing plate 45 is fixed, therefore... The second pressure relief hole 42 is exposed simultaneously to achieve further pressure relief, thereby mitigating the impact force of water flow during the opening of the flap gate 11. When the flap gate 11 is fully opened to the horizontal state, the gear 32 moves to the bottom of the receiving groove 34 and meshes with the rack 35 on the other side, thereby driving the gear 32 and the linkage shaft 31 to reverse, driving the conical sealing column 41 to reset, maintaining the flatness of the water-facing surface of the flap gate 11, reducing the disturbance to the water flow, and maintaining the smooth flow of liquid diversion by the weir frame 1.

[0018] It is worth noting that a fixed shaft 43 is provided inside the second pressure relief hole 42. The sealing plate 45 is fixedly connected to the end of the fixed shaft 43, and the axis of the sealing plate 45 coincides with that of the fixed shaft 43. A sealing ring 46 is fixedly connected to the outer wall of the sealing plate 45 facing the fixed shaft 43, and the sealing ring 46 is in contact with the outer surface of the conical sealing column 41. When the conical sealing column 41 is blocked inside the first pressure relief hole 24, the sealing plate 45 can cooperate with the sealing ring 46 to seal the inside of the second pressure relief hole 42, ensuring the sealing performance of the flap gate 11 in the blocked state and preventing water leakage.

[0019] It is worth mentioning that guide plates 44 are fixedly connected to both outer walls of the fixed shaft 43. The ends of the guide plates 44 away from the fixed shaft 43 are designed with an arc shape. Guide grooves adapted to the shape of the ends of the fixed shaft 43 are opened on both sides of the inner wall of the second pressure relief hole 42. The ends of the guide plates 44 are slidably installed inside the guide grooves. The cooperation between the guide plates 44 and the guide grooves ensures that the conical sealing column 41 can only move horizontally in the lateral direction, ensuring the smooth movement of the conical sealing column 41. In addition, the cooperation with the fixed shaft 43 keeps the sealing plate 45 stable during the movement of the conical sealing column 41, avoiding displacement or jamming caused by water flow impact.

[0020] It is worth noting that an assembly part 47 is provided at the end of the fixed shaft 43 away from the sealing plate 45. The assembly part 47 protrudes outside the second pressure relief hole 42, and the fixed shaft 43 is connected to the support frame 23 by screws through the assembly part 47. The assembly part 47 ensures that the fixed shaft 43 and the conical sealing column 41 are stable when the liquid flows, and the screw connection facilitates the disassembly and maintenance of the sealing mechanism 4.

[0021] Working Principle: This embodiment provides a flap-type diversion mechanism for a diversion well. During use, the flap gate 11 is in the closed state. The conical sealing column 41 is tightly fitted inside the first pressure relief hole 24 under the support of the eccentric wheel 33. Simultaneously, the sealing plate 45, in cooperation with the sealing ring 46, completely seals the second pressure relief hole 42, ensuring the sealing performance of the water-facing surface of the flap gate 11. When it is necessary to open the flap gate 11, the flap gate 11 begins to rotate around the rotating shaft inside the weir frame 1. At this time, the gear 32 meshes with the rack 35 in the receiving groove 34, driving the linkage shaft 31 to rotate, causing the eccentric wheel 33 to protrude... As the valve gradually detaches from the conical sealing column 41, releasing its support, the water pressure on the upstream side of the flap gate 11 pushes the conical sealing column 41 towards the linkage shaft 31. The first pressure relief hole 24 begins to open gradually, and the water flow through the first pressure relief hole 24 forms a pressure relief channel, reducing the water pressure on the flap gate 11. As the flap gate 11 continues to rotate, the conical sealing column 41 moves further until it completely detaches from the first pressure relief hole 24. At the same time, the second pressure relief hole 42 is also fully exposed, forming a double pressure relief channel, which significantly reduces the water flow resistance, allowing the flap gate 11 to continue rotating with a smaller driving force. When the flap gate 11 is nearly fully open, gear 32 reaches the bottom of the receiving groove 34 and begins to mesh with the rack 35 on the other side, driving the linkage shaft 31 to rotate in the opposite direction. The eccentric wheel 33 then pushes the conical sealing column 41 back to its original position until the flap gate 11 is fully open. The conical sealing column 41 then re-closes the first pressure relief hole 24, restoring the flatness of the water-facing surface of the flap gate 11. The closing process is the opposite. When the flap gate 11 begins to rotate in the opposite direction, the meshing of gear 32 and rack 35 drives the linkage shaft 31 to rotate again. The eccentric wheel 33 releases its pressure on the conical sealing column 41, allowing the pressure relief hole to reopen. The opening reduces the closing resistance. When the flap gate 11 approaches the closed position, the eccentric wheel 33 pushes the conical sealing column 41 back to its original position, achieving a sealed closure. While the flap gate 11 is approaching the closed position and the conical sealing column 41 initially enters the first pressure relief hole 24, the second pressure relief hole 42 remains unobstructed, achieving continuous pressure relief during the resetting and sealing process of the conical sealing column 41, ensuring the smooth resetting of the conical sealing column 41. Until the conical sealing column 41 is completely sealed, the sealing ring 46 contacts the outer wall of the conical sealing column 41 and seals the second pressure relief hole 42, ensuring a tight seal.

[0022] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A flap-type diversion mechanism for a diversion well, characterized in that, Includes a weir gate frame (1) and a flap gate (11) rotatably installed inside the weir gate frame (1). A pressure relief device (2) is provided on the outside of the flap gate (11). The pressure relief device (2) includes two first pressure relief holes (24). Both first pressure relief holes (24) are opened on the outer wall of the flap gate (11), and the first pressure relief holes (24) adopt a through-type design. The pressure relief device (2) also includes a drive mechanism (3) and a sealing mechanism (4) inside the first pressure relief hole (24). The drive mechanism (3) includes a linkage shaft (31) and two sets of eccentric wheels (33). Both ends of the linkage shaft (31) are connected to gears (32) by pins. Both sets of eccentric wheels (33) are fixedly connected to the outer wall of the linkage shaft (31). The sealing mechanism (4) includes a conical sealing column (41), a second pressure relief hole (42), and a sealing plate (45). The conical sealing column (41) is located inside the first pressure relief hole (24), and the inner wall size of the first pressure relief hole (24) is adapted to the outer wall size of the conical sealing column (41). The eccentric wheel (33) is in contact with the outer wall of the conical sealing column (41). The second pressure relief hole (42) is opened inside the conical sealing column (41), and the sealing plate (45) is located at the liquid inlet end of the second pressure relief hole (42).

2. The flap-type diversion mechanism for a diversion well according to claim 1, characterized in that, The pressure relief device (2) also includes a fixed frame (21), which is screwed to the drainage surface of the flap gate (11). The linkage shaft (31) is rotatably installed inside the fixed frame (21). An assembly frame (22) is fixedly connected to the bottom surface of the fixed frame (21), and a support frame (23) is fixedly connected to both sides of the outer wall of the assembly frame (22).

3. The flap-type diversion mechanism for a diversion well according to claim 1, characterized in that, The drive mechanism (3) also includes two receiving slots (34), both of which are opened on the inner wall of the weir frame (1). Each receiving slot (34) has two oppositely arranged arc surfaces. The axes of the two arc surfaces coincide and their openings are opposite to each other. The two arc surfaces form the cavity of the receiving slot (34). The gear (32) is located inside the cavity of the receiving slot (34). Each of the two arc surfaces is provided with several racks (35), and the gear (32) meshes with the racks (35).

4. A flap-type diversion mechanism for a diversion well according to claim 2, characterized in that, The second pressure relief hole (42) is provided with a fixed shaft (43). The sealing plate (45) is fixedly connected to the end of the fixed shaft (43). The axis of the sealing plate (45) coincides with that of the fixed shaft (43). A sealing ring (46) is fixedly connected to the outer wall of the sealing plate (45) facing the fixed shaft (43). The sealing ring (46) is in contact with the outer surface of the conical sealing column (41).

5. A flap-type diversion mechanism for a diversion well according to claim 4, characterized in that, Guide plates (44) are fixedly connected to the outer walls on both sides of the fixed shaft (43). The end of the guide plate (44) away from the fixed shaft (43) is designed with an arc shape. Guide grooves adapted to the shape of the end of the fixed shaft (43) are opened on both sides of the inner wall of the second pressure relief hole (42). The end of the guide plate (44) is slidably installed inside the guide groove.

6. A flap-type diversion mechanism for a diversion well according to claim 5, characterized in that, The fixed shaft (43) is provided with an assembly part (47) at the end away from the sealing plate (45). The assembly part (47) protrudes outside the second pressure relief hole (42), and the fixed shaft (43) is connected to the support frame (23) by screws through the assembly part (47).

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