Gate valve with compact structure and rainwater collecting device thereof

Abstract

The utility model relates to a compact structure type gate valve and a rainwater collection device thereof, the compact structure type gate valve is installed at a first outlet and a second outlet of a rainwater collection well, the first outlet is communicated with a rainwater distribution well, the second outlet is communicated with a municipal pipe network, and the compact structure type gate valve comprises a flat fixed frame and a fixed frame, the first outlet and the second outlet are formed in the inner wall of the rainwater collecting well; the valve plate is arranged in the fixing frame and can ascend and descend, so that the rainwater collecting well and the rainwater distributing well are communicated or separated, and the rainwater collecting well and a municipal pipe network are communicated or separated; the hydraulic push rod is installed on the side, back to the outlet, of the fixing frame and used for driving the valve plate to ascend and descend. The rainwater collecting well has the advantages that the fixing frame is arranged in a flat shape, the size is small, the occupied space of the rainwater collecting well is small, and the water storage capacity of the rainwater collecting well is larger; and the fixed frame is mounted on the well wall, so that more effective operation space is vacated, and a worker is not easy to collide with the gate valve when entering the well for maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of urban rainwater harvesting devices, specifically a compact gate valve and its rainwater harvesting device. Background Technology

[0002] In cities, rainwater harvesting systems are typically installed to collect rainwater.

[0003] The rainwater harvesting system includes a rainwater collection tank, the inlet of which is sequentially connected to a rainwater interception basket device, a rainwater distribution well, and a rainwater collection well. Rainwater first flows into the rainwater collection well, settles, flows into the rainwater distribution well, and then is filtered by the rainwater interception basket device before flowing into the rainwater harvesting system.

[0004] The rainwater harvesting well has a first outlet and a second outlet. The first outlet connects to the rainwater distribution well, and the second outlet connects to the municipal sewer network. Valves are installed at both the first and second outlets. When the rainwater collection tank is not full, the valve at the first outlet is open, and the valve at the second outlet is closed; when the rainwater collection tank is full, the valve at the first outlet is closed, and the valve at the second outlet is open. Because conventional valves are relatively large, they occupy a significant amount of space in the rainwater harvesting well, reducing the amount of rainwater stored. Furthermore, workers entering the rainwater harvesting well for maintenance are prone to collisions with the valves, which could lead to injury. Utility Model Content

[0005] To address the technical problems in the background art, this utility model discloses a compact gate valve and its rainwater collection device.

[0006] This utility model provides a compact gate valve, installed at the first and second outlets of a rainwater collection well. The first outlet is connected to a rainwater distribution well, and the second outlet is connected to a municipal pipe network. The valve includes:

[0007] A fixed frame, flat in shape, is installed on the inner wall of the rainwater collection well at the first and second outlets;

[0008] The valve plate is set in a fixed frame and can be raised and lowered to connect or disconnect the rainwater collection well and the rainwater distribution well, and to connect or disconnect the rainwater collection well and the municipal pipe network.

[0009] A hydraulic push rod, installed on the side of the fixed frame facing away from the outlet, is used to drive the valve plate to rise and fall.

[0010] The beneficial effects of the above-mentioned design are: the flat shape of the fixing frame results in a small volume and a small footprint in the rainwater collection well, allowing for a larger water storage capacity; moreover, the fixing frame is installed on the well wall, freeing up more effective operating space and making it less likely for workers to collide with the gate valve when entering the well for maintenance.

[0011] The valve plate is directly connected to the outlet, resulting in poor sealing. Therefore, a further improvement is made by fixing a sealing plate to the valve plate, which is connected to the outlet of the inner wall of the rainwater collection well.

[0012] To improve the stability of the valve plate's lifting and lowering, a further design is made: guide grooves with opposite openings are provided on both sides of the fixed frame, and the valve plate is inserted into the guide grooves.

[0013] Because the valve plate is prone to loosening due to assembly errors and thermal expansion and contraction when closed, leading to leakage, a further improvement is made: the width of the guide groove decreases from top to bottom. This design ensures that the pressure between the valve plate and the fixed frame gradually increases as the valve plate descends, thereby improving the sealing performance of the sealing plate.

[0014] The guide groove is integrally molded and designed with a groove width that decreases from top to bottom. Its structure is relatively complex and the processing cost is high. Based on this, a further improvement is made: a right-angled triangular first guide plate is connected to the groove wall away from the outlet.

[0015] The contact area between the valve plate and the guide groove wall directly affects the lifting stability of the valve plate and the positional stability of the valve plate after it is closed. Based on this, a further improvement is made by providing a connecting plate on the back side of the valve plate that is in the same direction of inclination as the first guide plate and fits against the first guide plate.

[0016] Since the well wall is generally made of cement and is relatively rough, it not only has poor sealing performance, but the sealing plate is also prone to wear and tear when it moves. Based on this, a further improvement is made by including a connecting plate, which is fixed to the well wall of the rainwater collection well; the connecting plate is provided with a through hole that communicates with the first outlet or the second outlet; and the sealing plate is attached to the connecting plate.

[0017] This invention also provides a rainwater collection device, including a rainwater collection well, inside which a compact gate valve is installed. This design allows for a larger water storage capacity in the rainwater collection well and prevents collisions that could injure workers.

[0018] Because rainwater contains many impurities, to reduce the amount of impurities flowing into the rainwater distribution well, a further design feature is that the first outlet is higher than the second outlet. This arrangement allows impurities to settle in the rainwater collection well, resulting in less impurities flowing into the rainwater distribution well.

[0019] To facilitate the removal of impurities from the rainwater collection well, a further design feature is the installation of a sewage pump on the rainwater collection well.

[0020] The beneficial effects of this utility model are: the flat shape of the fixing frame makes it small in size and occupies less space in the rainwater collection well, thus increasing the water storage capacity of the rainwater collection well; moreover, the fixing frame is installed on the well wall, freeing up more effective operating space, making it less likely for workers to collide with the gate valve when entering the well for maintenance. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a partial top view of the rainwater collection device in this utility model;

[0023] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a partial front view of the rainwater harvesting device in this utility model;

[0025] Figure 4 This is a schematic diagram of the gate valve in this utility model;

[0026] Figure 5 This is a structural schematic diagram of the gate valve from another perspective in this utility model;

[0027] Figure 6 This is a top view of the gate valve in this utility model;

[0028] Figure 7 yes Figure 6 Sectional view of BB;

[0029] Figure 8 yes Figure 7 Enlarged view of point C in the middle;

[0030] In the diagram: 1. Rainwater collection well; 2. Rainwater distribution well; 3. Fixing frame; 4. Valve plate; 5. Hydraulic push rod; 6. Sealing plate; 7. Guide groove; 8. First guide plate; 9. Second guide plate; 10. Through hole; 11. Sewage pump; 12. Municipal pipe network; 13. First sealing ring; 14. Second sealing ring; 15. Rainwater collection tank; 16. Rainwater interception basket device; 17. Connecting plate; 18. Horizontal plate; 19. Reinforcing rod; 101. First outlet; 102. Second outlet. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0032] Example 1:

[0033] like Figure 4-8As shown, this utility model discloses a compact gate valve, including a flat fixing frame 3. The fixing frame 3 consists of two vertically arranged side plates and a horizontally arranged top plate connected to the top of the side plates, spliced ​​together to form a U-shape with the opening facing downwards. The side plates are bent into a U-shape with opposite openings, and their inner sides form guide grooves 7. The top plate is also bent into a U-shape with the opening facing downwards. The top of the side plates is inserted into the top plate.

[0034] A gate plate 4 and a sealing plate 6 are bolted together and inserted into the side plate. The sealing plate 6 provides a sealing function. A horizontal plate 18 extends vertically from the back of the gate plate 4, and a second guide plate 9 extends downward from the end of the horizontal plate 18. A right-angled triangular first guide plate 8 is installed on the groove wall of the guide groove 7 away from the sealing plate 6, so that the groove width of the guide groove 7 decreases from top to bottom under the action of the first guide plate 8. The inclination direction of the guide surface of the second guide plate 9 is consistent with that of the first guide plate 8, so that the second guide plate 9 fits against the first guide plate 8, and the sealing plate 6 fits against the other groove wall of the guide groove 7, realizing lifting and lowering guidance. Moreover, the contact area between the second guide plate 9 and the first guide plate is larger, and the structure is more stable when the gate plate 4 descends to exert pressure on the groove wall of the guide groove 7. The second guide plate 9 consists of three parallel, spaced-apart sections to improve structural stability. It also includes a cylindrical, vertically arranged reinforcing rod 19. The upper end of the reinforcing rod 19 is fixedly connected to the upper horizontal plate 18, and the lower end is fixedly connected to the lower horizontal plate 18. The reinforcing rod 19 also passes through the middle horizontal plate 18 and is fixed by welding, thereby improving the structural strength of the gate plate 4. Furthermore, the lower end of the second guide plate 9 is suspended, giving it elasticity. Its deformation can accommodate the shape and position errors of the first guide plate 8's guide surface, preventing jamming.

[0035] This utility model also includes a connecting plate 17, which has a through hole 10. The connecting plate 17 is installed at the first outlet 101 and the second outlet 102 on the well wall of the rainwater collection well 1 and is fixed by anchor bolts. Both the first outlet 101 and the second outlet 102 are equipped with pipes that communicate with the external area. The through hole 10 is coaxial with the pipe and covers the pipe. A second annular sealing ring 14 is snapped onto the connecting plate 17 to seal the well wall at the pipe.

[0036] The connection plate 17 is designed so that the sealing plate 6 fits snugly against the connection plate 17. The connection plate 17 is smoother and flatter than the cement well wall, so the sealing plate 6 is less prone to wear when it is raised and lowered, and the sealing performance between the sealing plate 6 and the connection plate 17 is higher.

[0037] To further improve the sealing performance between the sealing plate 6 and the connecting plate 17, a first sealing ring 13 is also snapped onto the sealing plate 6, forming a sealed connection with the connecting plate 17. The first sealing ring 13 is located outside the through hole 10.

[0038] When the hydraulic push rod 5 drives the gate plate 4 to rise, the gate plate 4 and the sealing plate 6 move away from the through hole 10, allowing water to be discharged from the rainwater collection well 1; when the hydraulic push rod 5 drives the gate plate 4 to fall, the sealing plate 6 blocks the through hole 10.

[0039] The advantages of this embodiment are: the flat shape of the fixing frame 3 results in a small volume and a small space occupation of the rainwater collection well 1, which allows the rainwater collection well 1 to have a larger water storage capacity; moreover, the fixing frame 3 is installed on the well wall, which frees up more effective operating space, making it less likely for workers to collide with the gate valve when entering the well for maintenance.

[0040] Example 2:

[0041] like Figure 1-3 The present invention also discloses a rainwater collection device, including a rainwater collection well 1. The well wall of the rainwater collection well 1 is provided with a first outlet 101 and a second outlet 102. The first outlet 101 is connected to the inlet of a rainwater distribution well 2 via a pipe. Multiple rainwater intercepting basket devices 16 are connected in parallel from the outlet of the rainwater distribution well 2. The outlets of the rainwater intercepting basket devices 16 are connected to the inlet of a rainwater collection tank 15. The second outlet 102 is connected to the municipal pipe network 12 via a pipe.

[0042] A compact gate valve, as described in Embodiment 1, is installed at both the first outlet 101 and the second outlet 102.

[0043] The first outlet 101 is higher than the second outlet 102, which allows rainwater to settle in the rainwater collection well 1 first, reducing the amount of impurities flowing into the rainwater distribution well 2.

[0044] A sewage pump 11 is also installed on the rainwater collection well 1 to discharge the impurities that have settled in the rainwater collection well 1.

[0045] Under normal conditions, the gate valve at the second outlet 102 is closed, and the gate valve at the first outlet 101 is open. When the rainwater collection tank 15 is full, the gate valve at the first outlet 101 closes, and the gate valve at the second outlet 102 opens, thus achieving the purpose of flood discharge.

[0046] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A compact structure gate valve installed at a first outlet (101) and a second outlet (102) of a rainwater collection well (1), the first outlet (101) being communicated with a rainwater distribution well (2), the second outlet (102) being communicated with a municipal pipe network (12), characterized in that, include: The fixed frame (3) is flat and is installed at the first outlet (101) and the second outlet (102) on the inner wall of the rainwater collection well (1); The valve plate (4) is set in the fixed frame (3) and can be raised and lowered so that the rainwater collection well (1) and the rainwater distribution well (2) are connected or separated, and the rainwater collection well (1) and the municipal pipe network (12) are connected or separated. A hydraulic push rod (5) is installed on the side of the fixed frame (3) facing away from the outlet, and is used to drive the valve plate (4) to rise and fall.

2. A compact structure gate valve according to claim 1, characterized in that: A sealing plate (6) is fixedly connected to the valve plate (4), and the sealing plate (6) is connected to the outlet of the inner wall of the rainwater collection well (1).

3. A compact gate valve according to claim 2, characterized in that: The fixed frame (3) has guide grooves (7) with opposite openings on both sides, and the valve plate (4) is inserted into the guide grooves (7).

4. A compact gate valve according to claim 3, characterized in that: The width of the guide groove (7) decreases from top to bottom.

5. A compact gate valve according to claim 4, characterized in that: The guide groove (7) is connected to a right-angled triangular first guide plate (8) on the groove wall away from the outlet.

6. A compact gate valve according to claim 5, characterized in that: The valve plate (4) has a second guide plate (9) on its back side that is inclined in the same direction as the first guide plate (8) and fits against the first guide plate (8).

7. A compact gate valve according to claim 2, characterized in that: It also includes a connecting plate (17) fixed to the well wall of the rainwater collection well (1); The connecting plate (17) is provided with a through hole (10) communicating with the first outlet (101) or the second outlet (102); The sealing plate (6) is attached to the connecting plate (17).

8. A rainwater harvesting apparatus characterised by: The rainwater collection well (1) is included, and a compact gate valve according to any one of claims 1-7 is installed on the rainwater collection well (1).

9. A rainwater harvesting device according to claim 8, characterized in that: The first outlet (101) is higher than the second outlet (102).

10. A rainwater harvesting apparatus as claimed in claim 9, wherein: A sewage pump (11) is installed on the rainwater collection well (1).

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