Hydraulic flap valve

Abstract

The utility model provides a hydraulic flap valve which comprises a bottom frame, symmetrically-distributed connecting rotating shafts are rotationally installed on the bottom frame, connecting rods are fixedly connected to the two connecting rotating shafts, a flap valve plate is fixedly installed on the two connecting rods jointly, and a sealing gasket is arranged between the flap valve plate and the bottom frame. Symmetrically distributed mounting blocks are fixedly connected to the surface of one side of the flap valve plate, two mounting rods are fixedly arranged on the two mounting blocks in a penetrating mode, one ends of the two mounting rods are jointly and fixedly connected with a fixing rod, a first mounting base and two second mounting bases are fixedly connected to the bottom frame, and a hydraulic cylinder is hinged to the first mounting base through a first pin shaft. A hydraulic rod end of the hydraulic cylinder is fixedly connected with a connecting block, and the connecting block is hinged with a pulling plate through a second pin shaft; when the hydraulic cylinder drives the hydraulic rod to retract, automatic closing and fixing of the flap valve plate can be achieved, the fixing effect on the flap valve plate is guaranteed, the flap valve plate is tightly attached to the sealing gasket all the time, water flow cannot flow backwards into a pipe, the backflow prevention effect is better, and actual popularization is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and more specifically, to a hydraulic flap gate. Background Technology

[0002] Flap valves are generally used at pipe inlets connecting to pools (or bodies of water, such as rainwater pipes draining into lakes or rivers) to prevent water from flowing back into the pipes. They come in round and square shapes. Traditionally, flap valves were made of various metals, but now they are made of various composite materials. A sealing ring that works with the flap valve is installed on the bottom frame. However, the existing technology has the following shortcomings in its use:

[0003] Most existing flap gates use bolts to firmly connect the flange or mounting base of the flap gate to the corresponding structure of the installation location. However, under the impact of water flow over a long period of time, the bolts may loosen to some extent, affecting the fixing effect on the flap gate plate. This may cause water to backflow into the pipe from the gap between the flap gate and the sealing ring, and the anti-backflow effect is not ideal, so it needs to be improved.

[0004] Therefore, a hydraulic flap gate is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to address the problem that most existing flap gates use bolts to firmly connect the flange or fixing seat of the flap gate to the corresponding structure of the installation location. However, under the impact of water flow over a long period of time, the bolts may loosen, affecting the fixing effect of the flap gate plate. This allows water to flow back into the pipe from the gap between the flap gate and the sealing ring, resulting in an unsatisfactory anti-backflow effect. This problem needs to be improved.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A hydraulic flap gate is proposed to improve the above-mentioned problems.

[0008] The application is as follows:

[0009] A hydraulic flap gate includes a base frame with symmetrically distributed connecting shafts rotatably mounted on it. Connecting rods are fixedly connected to both connecting shafts, and flap gate panels are fixedly mounted on both connecting rods. A sealing gasket is provided between the flap gate panel and the base frame. Symmetrically distributed mounting blocks are fixedly connected to one side surface of the flap gate panel. Two mounting rods are fixedly threaded through each mounting block, and a fixing rod is fixedly connected to one end of each mounting rod. A first mounting seat and two second mounting seats are fixedly connected to the base frame. A hydraulic cylinder is hinged to the first mounting seat via a first pin. A connecting block is fixedly connected to the hydraulic rod end of the hydraulic cylinder. A pull plate is hinged to the connecting block via a second pin. A horizontal hook that cooperates with the fixing rod is hinged to the second mounting seat via a third pin. The horizontal hook is hinged to the pull plate via a fourth pin.

[0010] As a preferred technical solution of this application, a sensor is installed on the bottom frame, and a sensing plate opposite to the sensor is installed on the door flap.

[0011] As a preferred technical solution of this application, the sealing gasket is fixedly connected to the bottom frame, and the sealing gasket is made of natural rubber.

[0012] As a preferred technical solution of this application, the first mounting base is located between two second mounting bases, and the two second mounting bases are symmetrically distributed about the axis of the bottom frame.

[0013] As a preferred technical solution of this application, the two horizontal hooks are parallel.

[0014] As a preferred technical solution of this application, the two fixed rods are symmetrically distributed about the central axis of the door panel.

[0015] As a preferred technical solution of this application, the bottom frame is provided with multiple mounting holes.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In the scheme of this application:

[0018] 1. Through the coordinated use of hydraulic cylinder, connecting block, second pin, pull plate, third pin, cross hook and fourth pin, when the hydraulic cylinder drives the hydraulic rod to retract, it can realize the automatic closing and fixing of the flapping door panel, ensuring the fixing effect of the flapping door panel, so that the flapping door panel is always tightly attached to the sealing gasket, and the water flow will not flow back into the pipe, thus improving the anti-backflow effect.

[0019] 2. By combining sensors with sensing plates, it is possible to accurately detect whether the door flap is fully closed, providing managers with real-time status information so as to understand the working status of the door flap in a timely manner. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a hydraulic flap gate provided in this application.

[0021] Figure 2 This application provides a schematic diagram of the connection structure between the bottom frame and the sealing gasket of a hydraulic flap gate.

[0022] Figure 3 This is a schematic diagram of the overall structure of the other side of a hydraulic flap gate provided in this application.

[0023] Figure 4 for Figure 1 A magnified structural diagram of part A in the middle.

[0024] Figure 5 This application provides a schematic diagram of the connection structure between the hydraulic cylinder and the connecting block in a hydraulic flap gate.

[0025] The image shows:

[0026] 1. Base frame; 2. Connecting shaft; 3. Connecting rod; 4. Door flap; 5. Sealing gasket; 6. Mounting block; 7. Mounting rod; 8. Fixing rod; 9. First mounting seat; 10. Second mounting seat; 11. First pin; 12. Hydraulic cylinder; 13. Connecting block; 14. Second pin; 15. Pull plate; 16. Third pin; 17. Horizontal hook; 18. Fourth pin; 19. Sensor; 20. Sensing plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0028] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Example:

[0033] like Figure 1-5 As shown, this embodiment proposes a hydraulic flap gate, including a base frame 1. Symmetrically distributed connecting shafts 2 are rotatably mounted on the base frame 1. Connecting rods 3 are fixedly connected to both connecting shafts 2. A flap gate plate 4 is fixedly mounted on both connecting rods 3. A sealing gasket 5 is provided between the flap gate plate 4 and the base frame 1. In the initial state, rotating the flap gate plate 4 causes it to fit tightly against the sealing gasket 5. Symmetrically distributed mounting blocks 6 are fixedly connected to one side surface of the flap gate plate 4. Two mounting rods 7 are fixedly inserted through each mounting block 6. A fixing rod 8 is fixedly connected to one end of each mounting rod 7. A first mounting seat 9 and two second mounting seats 10 are fixedly connected to the base frame 1. A hydraulic cylinder 12 is hinged to the first mounting seat 9 via a first pin 11. A connecting block 13 is fixedly connected to the hydraulic rod end of the hydraulic cylinder 12. When the hydraulic cylinder 12 drives the hydraulic rod to retract, the connecting block 13 moves with the hydraulic rod. A pull plate 15 is hinged to the second pin 14. Since the hydraulic cylinder 12 is hinged to the first mounting base 9 via the first pin 11, the hydraulic cylinder 12 will rotate to a certain extent during this process. The second mounting base 10 is hinged to a horizontal hook 17 that cooperates with the fixed rod 8 via the third pin 16. The horizontal hook 17 is hinged to the pull plate 15 via the fourth pin 18. The second pin 14 will drive the pull plate 15 to move. Through the cooperation of the two third pins 16 and the two fourth pins 18, the two horizontal hooks 17 will rotate, and finally the two horizontal hooks 17 will be engaged with the two fixed rods 8 respectively. Through the cooperation of the two horizontal hooks 17 and the two fixed rods 8, the flap plate 4 is fixed, so that the flap plate 4 is always in close contact with the sealing gasket 5. The flap plate 4 will not be displaced by external forces such as water flow impact. Through the cooperation of the flap plate 4 and the sealing gasket 5, the water flow will not flow back into the pipe, and the anti-backflow effect is better, which is conducive to practical promotion.

[0034] like Figure 1 and Figure 4As shown, a sensor 19 is installed on the bottom frame 1, and a sensing plate 20 opposite to the sensor 19 is installed on the door flap 4. Through the cooperation of the sensor 19 and the sensing plate 20, the door flap 4 can be accurately sensed to determine whether it is fully closed, providing real-time status information to the management personnel so as to understand the working status of the door flap 4 in a timely manner.

[0035] like Figure 2 As shown, the sealing gasket 5 is fixedly connected to the bottom frame 1. The sealing gasket 5 is made of natural rubber, which has excellent elasticity. After the door flap 4 is closed, the door flap 4 and the sealing gasket 5 fit tightly together to ensure a good sealing effect and prevent water from flowing back in.

[0036] like Figure 1 and Figure 2 As shown, the first mounting base 9 is located between the two second mounting bases 10, and the two second mounting bases 10 are symmetrically distributed about the central axis of the bottom frame 1.

[0037] like Figure 5 As shown, the two horizontal hooks 17 are parallel.

[0038] like Figure 2 and Figure 5 As shown, the two fixing rods 8 are symmetrically distributed about the central axis of the door flap 4. The door flap 4 is fixed by the two fixing rods 8 through the two horizontal hooks 17, so that the door flap 4 is always in close contact with the sealing gasket 5.

[0039] like Figure 3 As shown, the bottom frame 1 has multiple mounting holes, which facilitate the installation of the bottom frame 1 in a designated position.

[0040] Specifically, in use, this hydraulic flap gate works as follows: In the initial state, the flap gate plate 4 is rotated to make it tightly fit with the sealing gasket 5. Then, the hydraulic cylinder 12 drives the hydraulic rod to retract, and the connecting block 13 moves with the hydraulic rod. Since the hydraulic cylinder 12 is hinged to the first mounting base 9 through the first pin 11, the hydraulic cylinder 12 will rotate to a certain extent during this process. The second pin 14 will drive the pull plate 15 to move. Through the two third pins 16 and the two fourth pins 18, the two horizontal hooks 17 will rotate, and finally the two horizontal hooks 17 will be engaged with the two fixed rods 8 respectively. The two horizontal hooks 17 and the two fixed rods 8 are used to fix the flap gate plate 4, so that the flap gate plate 4 is always tightly fitted with the sealing gasket 5. After the flap gate plate 4 is closed, it will not be displaced by external forces such as water flow impact. Through the cooperation between the flap gate plate 4 and the sealing gasket 5, water will not flow back into the pipe, and the anti-backflow effect is better, which is conducive to practical promotion.

[0041] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A hydraulic flap gate, comprising a base frame (1), characterized in that, The bottom frame (1) is rotatably mounted with symmetrically distributed connecting shafts (2). Each of the two connecting shafts (2) is fixedly connected with a connecting rod (3). A door flap (4) is fixedly mounted on both connecting rods (3). A sealing gasket (5) is provided between the door flap (4) and the bottom frame (1). A symmetrically distributed mounting block (6) is fixedly connected to one side surface of the door flap (4). Two mounting rods (7) are fixedly inserted through each of the two mounting blocks (6). A fixing rod (8) is fixedly connected to one end of each of the two mounting rods (7). The bottom frame (1) is rotatably mounted with symmetrically distributed connecting shafts (2). Each of the two mounting blocks (6) is fixedly connected with two mounting rods (7). A fixing rod (8) is fixedly connected to one end of each mounting rod (7). A first mounting base (9) and two second mounting bases (10) are fixedly connected to the frame (1). The first mounting base (9) is hinged to a hydraulic cylinder (12) via a first pin (11). A connecting block (13) is fixedly connected to the hydraulic rod end of the hydraulic cylinder (12). A pull plate (15) is hinged to the connecting block (13) via a second pin (14). A horizontal hook (17) that cooperates with a fixed rod (8) is hinged to the second mounting base (10) via a third pin (16). The horizontal hook (17) is hinged to the pull plate (15) via a fourth pin (18).

2. A hydraulic flap gate according to claim 1, characterized in that, A sensor (19) is installed on the bottom frame (1), and a sensor plate (20) opposite to the sensor (19) is installed on the door flap (4).

3. A hydraulic flap gate according to claim 1, characterized in that, The sealing gasket (5) is fixedly connected to the bottom frame (1), and the sealing gasket (5) is made of natural rubber.

4. A hydraulic flap gate according to claim 1, characterized in that, The first mounting base (9) is located between two second mounting bases (10), and the two second mounting bases (10) are symmetrically distributed about the central axis of the bottom frame (1).

5. A hydraulic flap gate according to claim 1, characterized in that, The two horizontal hooks (17) are parallel.

6. A hydraulic flap gate according to claim 1, characterized in that, The two fixed rods (8) are symmetrically distributed about the central axis of the door panel (4).

7. A hydraulic flap gate according to claim 1, characterized in that, The bottom frame (1) has multiple mounting holes.

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