Rotatable flood discharge valve for hydraulic engineering
By designing a hydraulically driven rotating mechanism and pressure relief components, the problems of traditional flood discharge valves being difficult to open under high water pressure and having inaccurate flow control have been solved, achieving high efficiency, precision, and safety in the flood discharge process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGYUAN CONSTR ENG CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional flood discharge valves are difficult to open under high water level and high water pressure conditions, the flood discharge flow is not accurately controlled, and the sealing effect is poor, posing safety hazards.
The valve is designed to be rotatable. A hydraulic cylinder drives a rack and pinion to rotate the shaft. The pressure relief assembly releases water pressure before the valve is opened. A limit block restricts the rotation angle and a sealing plate seals the pressure relief groove, achieving precise control and preventing leakage.
It achieves reliability and stability under high water pressure environment, ensuring that the flood discharge process is efficient, accurate and safe, and avoiding problems such as valves failing to rotate properly and water leakage.
Smart Images
Figure CN224281184U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy engineering technology, specifically a rotatable flood discharge valve for water conservancy projects. Background Technology
[0002] In the field of water conservancy engineering, flood discharge valves are key facilities for ensuring the safe operation of water conservancy systems, and their performance is directly related to the effectiveness of flood control and disaster reduction.
[0003] Currently, in practical applications, traditional flood discharge valves often fail to turn or even open due to excessive water pressure when facing high water levels and pressures, lacking effective pressure relief measures. This severely impacts flood discharge efficiency, hinders timely responses to sudden floods, and poses significant safety hazards. Furthermore, existing flood discharge valves lack precision in controlling the discharge flow rate, making it difficult to flexibly adjust the discharge volume according to actual water conditions. Moreover, the valves have poor sealing performance after closure, leading to water leakage and reducing the overall safety of water conservancy projects.
[0004] Therefore, there is an urgent need for a new type of rotatable flood discharge valve for water conservancy projects that can effectively cope with water pressure and achieve precise flood discharge, so as to meet the needs of safe and stable operation of modern water conservancy projects. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rotatable flood discharge valve for water conservancy projects.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a rotatable flood discharge valve for water conservancy projects, comprising a support frame, the bottom end of which is pre-embedded underground, a valve being installed inside the support frame, guide grooves being provided on both sides of the support frame in opposite directions for guiding the rotation of the valve, a limit block being provided on the bottom surface of the support frame, the limit block being fixedly connected to the bottom surface of the support frame and being mirror-oriented to limit the reverse rotation of the valve, a mounting box and a support block being provided on the upper surface inside the support frame for connecting a rotating mechanism, the rotating mechanism being used to drive the valve to rotate, a pressure relief groove being provided below the valve and a pressure relief assembly being provided inside for pressure relief before rotation, the pressure relief assembly having a sealing pressure relief groove in the sealing plate.
[0007] As a further description of the above technical solution:
[0008] The upper end of the mounting box is connected to the upper part of the support frame, and the lower part is hollow and contains gears. A through groove is provided on one side of the lower part, and a slider is provided above the through groove for the rack to slide.
[0009] As a further description of the above technical solution:
[0010] The rotating mechanism includes a hydraulic cylinder, a rack, a gear, and a rotating shaft. The hydraulic cylinder is placed in a support block. The telescopic end of the hydraulic cylinder is connected to one end of the rack. The rack slides inside the slider through a slide groove and meshes with the gear. The slide groove is located on the upper surface of the rack. The gear is connected above the rotating shaft.
[0011] As a further description of the above technical solution:
[0012] The upper end of the rotating shaft is rotatably connected to the upper surface of the inner side of the support frame, while the lower end passes through the gear and valve and is rotatably connected to the lower surface of the inner side of the support frame.
[0013] As a further description of the above technical solution:
[0014] The pressure relief assembly includes a hydraulic telescopic rod, a first connecting rod, a second connecting rod, and a sealing plate. The upper end of the hydraulic telescopic rod is connected to the upper surface inside the valve, and the lower end is hinged to the first connecting rod and the second connecting rod. The lower ends of the first connecting rod and the second connecting rod are respectively hinged to both ends of the sealing plate.
[0015] As a further description of the above technical solution:
[0016] The upper surface of the sealing plate is also provided with a groove for sliding at the hinge of the first link and the second link. When the hydraulic telescopic rod is activated, it drives the first link and the second link to retract, causing the sealing plate to move upward.
[0017] As a further description of the above technical solution:
[0018] The valve's internal pressure relief assembly is further reinforced with ribs on both sides to prevent internal deformation. A rotating plate is mounted on top of the valve, with one end of the rotating plate hinged to the valve's upper surface for maintenance of the pressure relief assembly.
[0019] This utility model has the following beneficial effects:
[0020] 1. The rotating mechanism's hydraulic cylinder pushes the rack to slide, meshing with the gear to drive the rotating shaft to rotate, thereby causing the valve to rotate precisely along the guide groove, achieving effective control of the flood discharge flow. The limit block can restrict the valve from excessive rotation and can seal the bottom when the valve is closed to prevent water leakage, ensuring that the flood discharge process is efficient, accurate, and safe.
[0021] Second, through the design of the pressure relief component, before the valve is rotated and opened, the hydraulic telescopic rod drives the first and second connecting rods to retract, causing the sealing plate to rise and the water to flow out through the pressure relief groove, releasing the water pressure in advance and avoiding the valve from being unable to rotate normally due to excessive water pressure, which greatly improves the reliability and stability of the valve in high water pressure environment. Attached Figure Description
[0022] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the support frame structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the connection structure between the valve and the rotating assembly of this utility model;
[0025] Figure 4 This is an enlarged view of the rotating structure of this utility model;
[0026] Figure 5 This is a cross-sectional view of the valve interior of this utility model.
[0027] Legend:
[0028] 1. Support frame; 2. Rotating mechanism; 3. Pressure relief assembly; 4. Mounting box; 5. Slider; 6. Support block; 7. Limiting block; 8. Guide groove; 9. Reinforcing rib; 10. Rotating plate; 11. Pressure relief groove; 12. Valve; 201. Hydraulic cylinder; 202. Rack; 203. Gear; 204. Rotating shaft; 205. Slide groove; 301. Hydraulic telescopic rod; 302. First connecting rod; 303. Second connecting rod; 304. Sealing plate; 305. Groove. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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 of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] Example 1:
[0033] like Figures 1 to 5 As shown in the figure, this embodiment provides a rotatable flood discharge valve for water conservancy projects, including a support frame 1. The bottom end of the support frame 1 is pre-embedded underground. A valve 12 is installed inside the support frame 1. Guide grooves 8 are provided on both sides of the support frame 1, and the guide grooves 8 are arranged in opposite directions on both sides to guide the rotation of the valve 12. A limit block 7 is also provided on the bottom surface of the support frame 1. The limit block 7 is fixedly connected to the bottom surface of the support frame 1 and is arranged in a mirror image to limit the reverse rotation of the valve 12. An installation box 4 and a support block 6 are also provided on the upper surface inside the support frame 1 for connecting a rotating mechanism 2. The rotating mechanism 2 is used to drive the valve 12 to rotate. A pressure relief groove 11 is provided below the valve 12, and a pressure relief assembly 3 is provided inside for pressure relief before rotation. The pressure relief assembly 3 has a sealing pressure relief groove 11 of a sealing plate 304.
[0034] In this embodiment, the rotating mechanism 2 and the pressure relief assembly 3 constitute a rotatable flood discharge valve for water conservancy projects according to this application.
[0035] It should also be noted that the rotatable flood discharge valve in this application can be used in any water conservancy project that requires flood discharge operations, and this application does not limit the specific water conservancy project scenario.
[0036] Specifically, the upper end of the mounting box 4 is connected to the upper part of the support frame 1, and the lower part is hollow and contains a gear 203. A through groove is provided on one side of the lower part, and a slider 5 is provided above the through groove for the sliding of the rack 202.
[0037] In this embodiment, the mounting box 4 is rectangular in shape, with its upper end vertically connected to the upper part of the support frame 1. The lower part is hollow, and a gear 203 is horizontally placed inside. A through groove is provided on one side of the lower part, and an inverted T-shaped slider 5 is vertically arranged above the through groove for the rack 202 to slide horizontally. The mounting box 4 accommodates the gear 203 and provides a sliding track for the rack 202. The slider 5 assists the rack 202 to slide, so that the gear 203 and the rack 202 can mesh and transmit power stably.
[0038] Specifically, the rotating mechanism 2 includes a hydraulic cylinder 201, a rack 202, a gear 203, and a rotating shaft 204. The hydraulic cylinder 201 is placed in the support block 6. The telescopic end of the hydraulic cylinder 201 is connected to one end of the rack 202. The rack 202 slides inside the slider 5 through a slide groove 205 and meshes with the gear 203. The slide groove 205 is provided on the upper surface of the rack 202. The gear 203 is connected above the rotating shaft 204.
[0039] In a preferred embodiment, the hydraulic cylinder 201 extends and retracts to push the rack 202 to slide. The rack 202 meshes with the gear 203, causing the gear 203 to rotate, which in turn drives the rotating shaft 204 to rotate, thus converting the linear motion of the hydraulic cylinder 201 into the rotational motion of the rotating shaft 204, driving the valve 12 to rotate.
[0040] Specifically, the upper end of the rotating shaft 204 is rotatably connected to the upper inner surface of the support frame 1, and the lower end of the shaft 204 passes through the gear 203 and the valve 12, rotatably connecting to the lower inner surface of the support frame 1.
[0041] In this embodiment, the rotating shaft 204 rotates under the drive of the gear 203, which in turn drives the valve 12 to rotate, so that the valve 12 can rotate around the shaft to open or close.
[0042] Example 2:
[0043] A pressure relief component 3 is provided based on embodiment 1.
[0044] Specifically, the pressure relief assembly 3 includes a hydraulic telescopic rod 301, a first connecting rod 302, a second connecting rod 303, and a sealing plate 304. The upper end of the hydraulic telescopic rod 301 is connected to the upper surface inside the valve 12, and the lower end is hinged to the first connecting rod 302 and the second connecting rod 303. The lower ends of the first connecting rod 302 and the second connecting rod 303 are respectively hinged to the two ends of the sealing plate 304.
[0045] With this configuration, the extension and retraction of the hydraulic telescopic rod 301 drives the movement of the first connecting rod 302 and the second connecting rod 303, thereby controlling the lifting and lowering of the sealing plate 304. The lifting and lowering of the sealing plate 304 enables the opening or closing of the pressure relief groove 11 to perform pressure relief operations.
[0046] Specifically, the upper surface of the sealing plate 304 is also provided with a groove 305 for sliding at the hinge of the first connecting rod 302 and the second connecting rod 303. When the hydraulic telescopic rod 301 is started, it drives the first connecting rod 302 and the second connecting rod 303 to retract, causing the sealing plate 304 to move upward.
[0047] When the hydraulic telescopic rod 301 extends or retracts, the first connecting rod 302 and the second connecting rod 303 slide in the groove 305. The groove 305 is T-shaped, which drives the sealing plate 304 to rise and fall, so as to realize the stable rise and fall of the sealing plate 304 and accurately control the opening and closing of the pressure relief groove 11.
[0048] Specifically, the valve 12 has reinforcing ribs 9 on both sides of the internal pressure relief assembly 3 to prevent internal deformation of the valve 12. A rotating plate 10 is provided above the valve 12, and one end of the rotating plate 10 is hinged to the upper surface of the valve 12 for maintenance of the pressure relief assembly 3.
[0049] In this embodiment, the reinforcing rib 9 enhances the structural strength of the valve 12, and the rotating plate 10 can be rotated around the hinge point to open, thereby improving the structural stability of the valve 12 and facilitating the inspection and maintenance of the pressure relief assembly 3.
[0050] In actual use, when the water level reaches the flood discharge standard, the hydraulic telescopic rod 301 is first activated. The telescopic end of the hydraulic telescopic rod 301 rises, causing the first connecting rod 302 and the second connecting rod 303 to slide and retract along the groove 305, thus raising the sealing plate 304. At this time, the water flows out through the pressure relief groove 11 to prevent the valve 12 from being unable to rotate due to excessive water pressure. Then, the hydraulic cylinder 201 is activated. The hydraulic cylinder 201 pushes the rack 202 to slide through the slide groove 205 in the mounting box 4. The rack 202 meshes with the gear 203. The movement of the rack 202 causes the gear 203 to rotate, thereby driving the rotating shaft 204 to rotate. The rotating shaft 204 drives the valve 12 to slide along the guide grooves 8 on both sides of the support frame 1. The valve 12 is rotated to release water. After the rotation is completed, the hydraulic cylinder 201 pulls the rack 202 to move in the opposite direction, causing the gear 203 to rotate in the opposite direction, thereby resetting the valve 12. At this time, the limit blocks 7 on both sides of the valve 12 restrict the valve 12 from rotating excessively and seal the bottom of the valve 12 to prevent water from flowing out. Then, the hydraulic telescopic rod 301 is activated to lower the hydraulic telescopic rod 301, which drives the first connecting rod 302 and the second connecting rod 303 to extend in the opposite direction along the groove 305, causing the sealing plate 304 to move downward to seal the pressure relief groove 11 and prevent water from flowing out, thus completing the flood discharge. Afterward, the rotating plate 10 can be pulled to rotate along the hinge point between the rotating plate 10 and the upper surface of the valve 12 to enter the valve 12 for maintenance and repair of the pressure relief component 3.
[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A rotatable flood discharge valve for water conservancy projects, characterized in that: It includes a support frame (1), the bottom end of the support frame (1) is embedded underground, a valve (12) is arranged inside the support frame (1), guide grooves (8) are arranged on both sides of the support frame (1) and are arranged in opposite directions on both sides for the rotational guidance of the valve (12), a limiting block (7) is further arranged on the bottom surface of the support frame (1), the limiting block (7) is fixedly connected to the bottom surface of the support frame (1) and the limiting blocks (7) are arranged in an opposite mirror image for restricting the reverse rotation of the valve (12), an installation box (4) and a support block (6) are further arranged on the upper surface inside the support frame (1) for connecting a rotating mechanism (2), the rotating mechanism (2) is used to drive the valve (12) to rotate, a pressure relief groove (11) is arranged below the valve (12) and a pressure relief component (3) is arranged inside for pressure relief before rotation.
2. The rotatable flood discharge valve for water conservancy projects according to claim 1, wherein: The upper end of the installation box (4) is connected above the support frame (1), the lower part inside is hollow and a gear (203) is placed inside, and a through groove is arranged on one side below, and a slider (5) is arranged above the through groove for the sliding of a rack (202).
3. The rotatable flood discharge valve for water conservancy projects according to claim 2, characterized in that: The rotating mechanism (2) includes a hydraulic cylinder (201), a rack (202), a gear (203) and a rotating shaft (204), the hydraulic cylinder (201) is placed in the support block (6), the telescopic end of the hydraulic cylinder (201) is connected to one end of the rack (202), the rack (202) slides inside the slider (5) through a chute (205) and meshes with the gear (203), the chute (205) is arranged on the upper surface of the rack (202), and the gear (203) is connected above the rotating shaft (204).
4. The rotatable flood discharge valve for water conservancy projects according to claim 3, characterized in that: The upper end of the rotating shaft (204) is rotatably connected to the lower end of the upper surface inside the support frame (1), and the lower end passes through the gear (203) and the valve (12) and is rotatably connected to the lower surface inside the support frame (1).
5. The rotatable flood discharge valve for water conservancy projects according to claim 4, wherein: The pressure relief component (3) includes a hydraulic telescopic rod (301), a first connecting rod (302), a second connecting rod (303) and a sealing plate (304), the upper end of the hydraulic telescopic rod (301) is connected to the upper surface inside the valve (12), and the lower end is hinged to the first connecting rod (302) and the second connecting rod (303), and the lower ends of the first connecting rod (302) and the second connecting rod (303) are respectively hinged to both ends of the sealing plate (304).
6. The rotatable flood discharge valve for water conservancy projects according to claim 5, characterized in that: A groove (305) is further arranged on the upper surface of the sealing plate (304) for the sliding of the hinged part of the first connecting rod (302) and the second connecting rod (303). When the hydraulic telescopic rod (301) is started, it带动 the first connecting rod (302) and the second connecting rod (303) to contract and make the sealing plate (304) move upward.
7. The rotatable flood discharge valve for water conservancy projects according to claim 6, characterized in that: Reinforcing ribs (9) are further arranged on both sides of the pressure relief component (3) inside the valve (12) below for preventing the deformation inside the valve (12), a rotating plate (10) is arranged above the valve (12), and one end of the rotating plate (10) is hinged to the upper surface of the valve (12) for overhauling the pressure relief component (3).