Suitable for inclined gate leveling and pressure devices
By designing valve body chambers, water inlet pipes, tie rod boxes, and guide devices in the inclined gate, the rigidity and water flow impact problems of the guide system in the prior art have been solved, and the stability and accuracy of the gate opening and closing process have been improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWERCHINA HUADONG ENG CORP LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-26
AI Technical Summary
Existing water-filling valves are difficult to meet the structural stiffness requirements of the guide shaft in inclined gates, and the water seal requirements are increased, which cannot effectively disperse water pressure stress, resulting in increased additional load and affecting opening and closing force and guiding accuracy.
A gate filling and pressure device suitable for inclined arrangement was designed, including a valve body chamber, a water inlet pipe, a tie rod box, a valve body, and a guide device. By tightly fixing the guide shaft to the tie rod box, the force-bearing area of the valve body is increased, the water flow path is optimized, the water flow impact is reduced, and the stability and accuracy of the opening and closing process are ensured.
It improves the structural rigidity of the valve body and the stability of the guide shaft, reduces the impact of additional loads on the water filling valve, reduces the damage to the structure caused by water flow impact, and improves the smoothness and guiding accuracy of the opening and closing process.
Smart Images
Figure CN224281178U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a gate leveling and pressure device suitable for inclined gates. It is applicable to the field of hydropower and water conservancy technology. Background Technology
[0002] In hydropower and water conservancy projects, gates are important devices used to intercept water flow, control water levels, and regulate flow rates. This is especially true for planar gates operating in inclined gate slots, where the opening and closing process is crucial. To reduce the opening and closing force, a water-filling valve is usually installed on the gate to fill the downstream side with water before opening, thus balancing the water pressure.
[0003] Because the water filling valve needs to adapt to the gate slot inclination together with the gate, the water filling valve will generate an additional load in the direction perpendicular to the gate slot, and this load will increase with the increase of the inclination angle. This will cause the guide shaft structure in the water filling valve to be stressed, increase the rigidity requirement of the water filling valve connection plate structure, and increase the water sealing requirements between the valve body and the water seal. Existing water filling valves are difficult to meet the above requirements. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a gate leveling and pressure device suitable for inclined arrangement, in view of the above-mentioned problems.
[0005] The technical solution adopted in this utility model is: a gate leveling and pressure device suitable for inclined arrangements, comprising:
[0006] The valve body chamber is formed inside the valve.
[0007] The valve inlet is located on the gate plate upstream of the gate and is connected to the valve body chamber;
[0008] A water inlet pipe is installed inside the gate. Its upper inlet is connected to the valve body chamber and fixedly connected to the gate via a horizontal web. The lower outlet of the water inlet pipe passes through the gate plate on the downstream side of the gate.
[0009] A rolling case is installed inside the gate and located above the water inlet at the upper end of the water pipe;
[0010] The valve body is provided corresponding to the upper inlet of the water pipe and can be used to block the upper inlet of the water pipe. The upper mounting plate of the valve body is arranged parallel to the gate plate. The upper mounting plate is connected to the lower end of the connecting plate via a pin shaft. The upper end of the connecting plate is connected to the lower end of the pull rod box via a pin shaft.
[0011] A guiding device is provided corresponding to the upper inlet of the water pipe, and has a guiding channel that is adapted to the valve body and communicates with the water pipe.
[0012] The water inlet pipe consists of a vertical section, a transition section, and an inclined section from top to bottom. The inclined section gradually slopes upstream from top to bottom, and the vertical section smoothly transitions to the inclined section via the transition section.
[0013] The pull-along box is equipped with a horizontally arranged guide shaft parallel to the gate plate. The middle part of the guide shaft is inserted into the pull-along box, and the two ends of the guide shaft are inserted into the lifting lugs on both sides of the pull-along box. The lifting lugs are provided with guide holes corresponding to the guide shaft. The guide shaft is inserted into the guide holes and can move up and down within the guide holes.
[0014] A second retaining ring is fitted on the guide shaft. The second retaining ring is located between the lifting lug plate and the trolley case, and the second retaining ring is fixedly connected to the trolley case.
[0015] The trolley case is equipped with a second shaft parallel to the guide shaft. The two ends of the second shaft are fixed to the lifting lugs on both sides of the trolley case, and the middle part of the second shaft passes through the guide hole on the trolley case. The second shaft can move up and down within the guide hole on the trolley case.
[0016] A retaining ring is fitted on the shaft 2. The retaining ring 1 is located between the lifting lug plate and the trolley case, and the retaining ring 1 is fixedly connected to the lifting lug plate.
[0017] The guiding device has an upper guide ring and a lower guide ring, which are arranged coaxially and connected by several connecting steel plates.
[0018] The beneficial effects of this utility model are as follows: In this utility model, the upper mounting plate of the valve body is arranged parallel to the gate plate (i.e. perpendicular to the water flow direction). The upper mounting plate is connected to the lower end of the connecting plate via a pin shaft, and the upper end of the connecting plate is connected to the lower end of the tie rod box via a pin shaft. This significantly increases the area of the valve body in the key stress direction, which not only improves the structural rigidity of the valve body, but also effectively disperses the stress generated by water pressure, thereby reducing the impact of the additional load caused by tilting on the performance of the water filling valve.
[0019] In this invention, the guide shaft is tightly fixed to the trolley case structure via a retaining ring, ensuring the stability and reliability between the guide shaft and the trolley case. The end is fixed to the lifting lug plate via a retaining ring, etc. The design of the lifting lug plate allows the guide shaft to move smoothly when necessary, while also being able to withstand enormous forces and torques.
[0020] Due to the inclined arrangement of the gate, the guiding accuracy of the water filling valve during the opening and closing process is particularly important. This invention adds a special guiding device to the water filling valve, which can limit the lateral swaying of the valve body during the opening and closing process, ensuring that the valve body can move up and down accurately along the predetermined trajectory, thereby improving the smoothness and reliability of operation.
[0021] In traditional water-filling valve designs, the arrangement of the outlet water pipe often overlooks the potential impact of water flow on the civil structure. This invention addresses this by dividing the water pipe into a vertical section, a transition section, and an inclined section from top to bottom. The inclined section is arranged at a downward angle, meaning the water pipe extends from the water-filling valve outlet at a certain incline, pointing downwards. This arrangement optimizes the water flow path. After leaving the water-filling valve, the water no longer impacts the surrounding structure directly at a vertical angle, but flows out along the inclined direction of the water pipe, thus reducing the direct impact on the surrounding structure. Simultaneously, this arrangement also reduces the risk of structural damage caused by water flow impact, extending the service life of related facilities. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of an embodiment.
[0023] Figure 2 This is a schematic diagram of the connection structure between the valve body and the pull rod box in the embodiment.
[0024] Figure 3 This is a cross-sectional view of the guide device in the embodiment.
[0025] Figure 4 This is a top view of the guide device in the embodiment.
[0026] Figure 5 This is a cross-sectional view of an embodiment.
[0027] 1. Lug box; 1-1. Guide hole on the box; 2. Valve body; 2-1. Upper mounting plate; 3. Pin; 4. Connecting plate; 5. Guide device; 5-1. Upper guide ring; 5-2. Lower guide ring; 5-3. Connecting steel plate; 6. Horizontal web plate; 7. Water inlet pipe; 8. Guide shaft; 9. Retaining ring two; 10. Shaft two; 11. Retaining ring one; 12. Lifting lug plate; 13. Gate plate. Detailed Implementation
[0028] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0029] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.
[0030] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.
[0031] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.
[0032] This embodiment is a gate filling and pressure device suitable for inclined arrangement, including valve body chamber, valve inlet, water pipe, pull rod box, valve body and guide device, etc.
[0033] In this example, the valve body chamber is formed inside the valve, the valve inlet is located on the gate plate on the upstream side of the gate, the valve inlet is connected to the valve body chamber, the water inlet is set inside the gate, the upper end of the water inlet is connected to the valve body chamber, the upper end of the water inlet is fixedly connected to the gate through the horizontal web plate, and the lower end of the water inlet outlet passes through the gate plate on the downstream side of the gate.
[0034] In this embodiment, the water inlet pipe consists of a vertical section, a transition section, and an inclined section from top to bottom. The inclined section gradually slopes upwards from top to bottom, and the vertical section smoothly transitions to the inclined section via the transition section.
[0035] In this embodiment, a sealing mechanism is provided at the upper end of the water inlet of the water pipe, which can close the water inlet. The sealing mechanism includes a pull rod box, a valve body, and a guide device.
[0036] In this example, the pull-rod box is vertically arranged inside the gate and located above the upper inlet of the water inlet pipe; the valve body is set corresponding to the upper inlet of the water inlet pipe and can be used to block the upper inlet of the water inlet pipe. The upper mounting plate of the valve body is arranged parallel to the gate plate. The upper mounting plate is connected to the lower end of the connecting plate via a pin perpendicular to the upper mounting plate. The upper end of the connecting plate is connected to the lower end of the pull-rod box via a pin perpendicular to the upper mounting plate.
[0037] In this embodiment, a horizontal guide shaft is installed at the bottom of the pull-along box, parallel to the gate plate. The middle of the guide shaft is inserted into the pull-along box, and both ends of the guide shaft are inserted into the lifting lugs on both sides of the pull-along box. The lifting lugs have guide holes corresponding to the guide shaft, and the guide shaft is inserted into the guide holes and can move up and down within the guide holes. A second retaining ring is fitted on the guide shaft, and the second retaining ring is located between the lifting lugs and the pull-along box, and the second retaining ring is fixedly connected to the pull-along box.
[0038] Considering that the guide shaft of an inclined gate is subjected to a more complex mechanical environment than that of a conventionally arranged gate during opening and closing, particularly a significant increase in lateral forces, this embodiment incorporates a comprehensive reinforcement design for the guide shaft. By increasing the diameter of the guide shaft, the cross-sectional moment of inertia and shear area are increased, stress distribution is optimized, and material utilization is improved, significantly enhancing the bending and shear resistance of the guide shaft. Furthermore, the use of high-performance alloy materials in the guide shaft further enhances its overall load-bearing capacity and service life.
[0039] In this example, a second shaft parallel to the guide shaft is installed in the middle of the suitcase. Both ends of the second shaft are fixed to the lifting lugs on both sides of the suitcase. The middle of the second shaft passes through a guide hole on the suitcase, allowing it to move up and down within the guide hole. A retaining ring is fitted onto the second shaft, located between the lifting lugs and the suitcase, and is fixedly connected to the lifting lugs.
[0040] In this embodiment, the guiding device is fixed to the horizontal web plate and is positioned corresponding to the upper inlet of the water inlet pipe. The guiding device has a guiding channel that is adapted to the valve body and communicates with the water inlet pipe. The guiding device has an upper guide ring and a lower guide ring, both with the same inner diameter and adapted to the valve body. The upper and lower guide rings are arranged coaxially, and several connecting steel plates arranged radially along the guide rings connect the upper and lower guide rings. A flow channel is formed between the connecting steel plates, and the distance from the inner end of the connecting steel plate to the axis of the upper and lower guide rings is equal to the radius of the guide ring.
[0041] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A device for equalizing the pressure in a gate arranged in an inclined position, characterized in that include: The valve body chamber is formed inside the valve. The valve inlet is located on the gate plate upstream of the gate and is connected to the valve body chamber; A water inlet pipe is installed inside the gate. Its upper inlet is connected to the valve body chamber and fixedly connected to the gate via a horizontal web. The lower outlet of the water inlet pipe passes through the gate plate on the downstream side of the gate. A rolling case is installed inside the gate and located above the water inlet at the upper end of the water pipe; The valve body is provided corresponding to the upper inlet of the water pipe and can be used to block the upper inlet of the water pipe. The upper mounting plate of the valve body is arranged parallel to the gate plate. The upper mounting plate is connected to the lower end of the connecting plate via a pin shaft. The upper end of the connecting plate is connected to the lower end of the pull rod box via a pin shaft. A guiding device is provided corresponding to the upper inlet of the water pipe, and has a guiding channel that is adapted to the valve body and communicates with the water pipe.
2. A gate level pressure equalizing device suitable for use in a tilting arrangement according to claim 1, characterized in that The water inlet pipe consists of a vertical section, a transition section, and an inclined section from top to bottom. The inclined section gradually slopes upstream from top to bottom, and the vertical section smoothly transitions to the inclined section via the transition section.
3. The gate leveling and pressure device suitable for inclined arrangement according to claim 1, characterized in that, The pull-along box is equipped with a horizontally arranged guide shaft parallel to the gate plate. The middle part of the guide shaft is inserted into the pull-along box, and the two ends of the guide shaft are inserted into the lifting lugs on both sides of the pull-along box. The lifting lugs are provided with guide holes corresponding to the guide shaft. The guide shaft is inserted into the guide holes and can move up and down within the guide holes.
4. The gate leveling and pressure device suitable for inclined arrangement according to claim 2, characterized in that, A second retaining ring is fitted on the guide shaft. The second retaining ring is located between the lifting lug plate and the trolley case, and the second retaining ring is fixedly connected to the trolley case.
5. The gate leveling and pressure device suitable for inclined arrangement according to claim 2, characterized in that, The trolley case is equipped with a second shaft parallel to the guide shaft. The two ends of the second shaft are fixed to the lifting lugs on both sides of the trolley case, and the middle part of the second shaft passes through the guide hole on the trolley case. The second shaft can move up and down within the guide hole on the trolley case.
6. The gate leveling and pressure device suitable for inclined arrangement according to claim 5, characterized in that, A retaining ring is fitted on the shaft 2. The retaining ring 1 is located between the lifting lug plate and the trolley case, and the retaining ring 1 is fixedly connected to the lifting lug plate.
7. The gate leveling and pressure device suitable for inclined arrangement according to claim 1, characterized in that, The guiding device has an upper guide ring and a lower guide ring, which are arranged coaxially and connected by several connecting steel plates.