A hydraulic engineering gate with automatic diversion and pressure relief function

Abstract

The present invention relates to the technical field of hydraulic gates, and discloses a hydraulic engineering gate with automatic diversion and pressure relief function, comprising a wall, a hoist is installed on the top of the wall, a slide rail is symmetrically installed inside the wall, a gate body slidably connected to the inner wall of the slide rail is installed at the bottom of the hoist, a pressure relief component is arranged below the hoist, and the pressure relief component comprises two cavities, the two cavities are symmetrically opened at the middle and lower position of the gate body, a gear frame is driven to move by a cylinder, the gear frame and the gear block are meshed with each other, so that the pressure relief shaft rotates, and then the pressure relief door plate is driven to rotate. Since the pressure relief door plate is located at the lower middle position of the gate body, during the pressure relief process, the lower position can more effectively utilize the gravity and pressure of the water flow itself, so that the water flow can flow out more smoothly when passing through the pressure relief door plate, avoiding the extra load caused by the water flow needing to overcome the gravitational potential energy when the pressure is relieved at a high place, and improving the pressure relief efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic gates, in particular to a hydraulic engineering gate with automatic diversion and pressure relief functions. Background Art

[0002] As an extremely critical control component in water conservancy facilities, water conservancy project gates can accurately adjust the flow rate, flow velocity and direction of water, thereby realizing the scientific allocation and efficient utilization of water resources. In the operation of various water conservancy projects such as flood control, irrigation, and water supply, gates play an indispensable and key role, effectively ensuring the safe and efficient operation of water conservancy systems.

[0003] In the Chinese patent with the patent publication number CN118498299A, a hydraulic gate with automatic diversion and pressure relief function is disclosed. However, the equipment and prior art in the cited document still have the following defects when used in practice: 1. The pressure relief function of this patent is achieved by driving the float upward due to the rising water level, indirectly causing the spill plate to descend and no longer blocking the diversion port. However, this design has many defects: in order to use the buoyancy of the float to drive the spill plate to descend, the mass of the spill plate cannot be too large, and the spill plate with small mass is easily damaged by the impact of water flow when blocking and descending. When blocking, if the water flow pressure is high, the spill plate may be deformed, displaced or even damaged, affecting the blocking effect; when descending, the continuous impact of the leaking water will increase the risk of it being washed away. At the same time, when the spill plate moves up and down, the diversion port will bear a certain load instead of the spill plate, and the internal diversion port needs to provide moving space for the spill plate, so its structural strength is relatively low. The impact force of the water flow will damage the spill plate and the diversion port structure, causing cracks, wear and other problems. In the long run, the structural strength and stability will be weakened, increasing the equipment maintenance cost and safety hazards.

[0004] In addition, the design relies on rotating connections to achieve component movement. Due to the high overall mass of the gate, the rotating connection parts are subject to a large load during actual operation. Under long-term action, they are prone to wear, looseness, or even breakage, affecting the normal operation of the device. Furthermore, the diversion port is set at the top, which has no obvious effect on pressure reduction. When water flows out, it needs to overcome the gravitational potential energy, which increases the load and may form local turbulence near the diversion port, increasing water flow resistance and energy loss, which is not conducive to smooth water diversion and cannot effectively reduce the water pressure in the channel.

[0005] 2. As a key water flow control facility in water conservancy projects, the problem of silt accumulation is difficult to avoid during the long-term use of hydraulic gates. Although the existing hydraulic gate dredging technology can alleviate the impact of this problem to a certain extent, from the perspective of dredging coverage, the current main dredging methods include regular manual cleaning and dredging using sand outlets. Regular manual cleaning methods are highly dependent on manpower, which is not only labor-intensive but also inefficient. Due to the many limitations of manual operation, it is difficult for operators to conduct a comprehensive and detailed cleaning of the silt around the gates, and the sand outlet dredging method also has obvious defects. It can usually only clean the silt in a specific area, and cannot make corresponding adjustments according to the dynamic distribution changes of the silt under the action of water flow, making it difficult to achieve full coverage and absorption of the silt. This limitation makes it very easy to form silt accumulation dead corners in some difficult-to-reach areas such as the back of the gate. As time goes by, the silt accumulation problem will become more prominent and serious.

[0006] In actual operation, due to the continuous action of water flow, silt will continue to accumulate behind the gate. This phenomenon will cause the pressure on the gate to gradually increase, posing a serious threat to the structural stability of the gate. If the gate is in this high-pressure environment for a long time, the risk of deformation and damage will greatly increase, which will significantly shorten the service life of the gate. This will not only increase the maintenance cost of water conservancy facilities, but may also have an adverse impact on the normal operation of water conservancy projects, and even cause safety accidents, resulting in immeasurable losses.

[0007] In addition, during the dredging process at the sand outlet, in order to avoid excessive discharge of water, the sand outlet is generally set smaller. However, the sludge often contains various impurities and particles. When the water flow is slow or stagnant, the sludge is likely to solidify. Once the sludge solidifies, it is very easy to block the sand outlet, making it impossible for the silt to be discharged smoothly, resulting in the inability to carry out dredging work normally. This situation will not only affect the dredging effect, but may also further aggravate the silt accumulation problem, thus forming a vicious circle and making the entire dredging work more difficult.

[0008] To this end, the present invention proposes a hydraulic engineering gate with automatic diversion and pressure relief functions. Summary of the invention

[0009] The object of the present invention is to provide a hydraulic engineering gate with automatic diversion and pressure relief functions to solve the problems raised in the above-mentioned background technology.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water conservancy project gate with automatic diversion and pressure relief function, comprising a wall, a gate hoist is installed on the top of the wall, slide rails are symmetrically installed inside the wall, a gate body slidably connected to the inner wall of the slide rail is installed at the bottom of the gate hoist, a pressure relief assembly is arranged below the gate hoist, the pressure relief assembly comprises two cavities, the two cavities are symmetrically opened in the lower middle part of the gate body, a pressure relief shaft is rotatably connected inside the cavity, two pressure relief door plates are fixedly connected to each pressure relief shaft in left and right positions, and pressure relief steps are symmetrically fixedly connected to the inner wall of the cavity.

[0011] Preferably, two pressure relief door plates which are distributed in upper and lower positions and located on the same side of the pressure relief axis are arranged as a group, and the sides of each group of pressure relief door plates which are close to each other gradually shrink, and each group of pressure relief door plates forms a V-shaped structure.

[0012] Preferably, the inclination direction of each group of pressure relief door panels is opposite to the direction of water flow.

[0013] Preferably, both sides of the gate body are equidistantly reduced and inwardly recessed, and pressure relief steps are symmetrically fixedly connected to the inner wall of the gate body, and the pressure relief steps are adapted to the shape of the pressure relief door plate.

[0014] Preferably, a plurality of arc-shaped guide blocks are fixedly connected to the bottom of the gate body in a linear and equidistant arrangement, and arc-shaped guide grooves are arranged linearly and equidistantly on one side of the wall close to the gate body.

[0015] Preferably, the arc-shaped guide block and the arc-shaped guide groove are both arranged obliquely, and their contracted ends are close to the direction of water flow.

[0016] Preferably, an extension cavity is opened in the middle of the gate body, a cylinder is installed inside the extension cavity, a gear frame is fixedly connected to the bottom of the cylinder, and gear blocks are fixedly connected to the middle of the pressure relief shaft in an annular and equidistant arrangement.

[0017] Preferably, the tooth frame and the tooth block are meshed with each other, the teeth on both sides of the tooth frame are oppositely arranged, and a protective shell is installed outside the extension cavity, and the protective shell is located on the side away from the water flow direction.

[0018] Preferably, an anti-blocking component is provided on the inner wall of the wall, and the anti-blocking component includes two resistance blocks, and the two resistance blocks are respectively installed on both sides of the gate body. A rotating shaft is fixedly connected to the inner wall of the wall, and a resistance plate is symmetrically rotatably connected to the outer surface of the rotating shaft, and the bottom of the resistance plate is rotatably connected to a collecting shaft, and the outer surface of the collecting shaft is fixedly connected to an impeller arranged in a ring-like shape and at equal intervals.

[0019] Preferably, reinforcing ribs are installed between the bottom of the resistance block and the gate body, the upper and middle part of the resistance plate is set as an arc-shaped depression that matches the shape of the resistance block, and the bottom of the resistance plate expands toward one side of the water flow direction.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. The gear frame is driven to move by the cylinder, and the gear frame and the gear block are meshed with each other, so that the pressure relief shaft rotates, and then the pressure relief door plate is driven to rotate. Since the pressure relief door plate is located in the lower middle part of the gate body, during the pressure relief process, the lower position can more effectively utilize the gravity and pressure of the water flow itself, so that the water flow can flow out more smoothly when passing through the pressure relief door plate, avoiding the additional load caused by the water flow to overcome the gravitational potential energy when the pressure is released at a high place, and improving the pressure relief efficiency. At the same time, this position is also very beneficial for diversion, which can guide the water flow to flow out smoothly along the bottom of the gate body, reduce the turbulence of the water flow, and enable the water flow to be diverted more orderly, which helps to maintain the stable state of the water flow in the canal.

[0021] Among them: the two sides of the gate body are equidistantly reduced and recessed inward. When the water flow hits the gate body, the inward recessed design can make the impact force of the water flow more evenly distributed on the surface of the gate body, avoiding structural damage caused by excessive local force and enhancing the overall stability of the gate. From the perspective of manufacturing convenience, this equidistantly reduced and inward recessed design is relatively simple, and it is easier to design and process molds during the manufacturing process, reducing the manufacturing difficulty and cost. At the same time, it also helps to ensure the manufacturing accuracy of the gate body and improve product quality.

[0022] Among them: the arc-shaped structure of the arc-shaped guide block and the arc-shaped guide groove can improve the sealing performance. When the gate is closed, the arc-shaped guide block fits tightly with the arc-shaped guide groove, and its arc-shaped surface can better adapt to the pressure of the water flow, forming a good sealing effect and effectively preventing water leakage. Secondly, when the water flows through, the arc-shaped surface can evenly disperse the pressure of the water flow in all directions, avoiding damage to the gate structure caused by excessive local pressure. In addition, the arc-shaped design can also reduce the water flow resistance, allowing the water flow to pass more smoothly, avoiding the accumulation of water near the gate, thereby realizing the function of rapid pressure relief and ensuring the safe operation of the water conservancy project.

[0023] Among them: the V-shaped structure of the pressure relief door plate has unique advantages. When it is not opened, the water flow will impact the pressure relief door plate. Due to the particularity of the V-shaped structure, the impact force of the water flow will cause the two pressure relief door plates to clamp each other. This clamping effect enhances the sealing of the gate and can effectively prevent water from leaking through the gaps in the pressure relief door plates when the pressure is not relieved. At the same time, due to the V-shaped structure, the contact surface of the two pressure relief door plates shrinks. Under the same water flow pressure, the pressure per unit area increases, thereby increasing the sealing pressure, further improving the sealing effect of the gate, and ensuring the safety and reliability of the water conservancy project during normal operation.

[0024] Among them: the pressure relief step is designed to be V-shaped to reduce water flow resistance. When the water flows through the pressure relief step, the V-shaped outline can guide the water to flow more smoothly, avoiding the formation of greater resistance at the step, so that the water can pass more efficiently. At the same time, the V-shaped pressure relief step helps to avoid backflow and vortexes, ensures the unidirectional flow of water, and reduces the energy loss of water. In addition, this design can also protect the pressure relief component, avoiding unnecessary impact and damage to the pressure relief component during the flow of water, extending the service life of the pressure relief component, and reducing the maintenance cost of the equipment.

[0025] Among them: setting up cavities and extension cavities inside the gate body has many benefits. On the one hand, the existence of these cavities can increase the buoyancy of the gate body. When the gate is in water, the air inside the cavity can generate upward buoyancy, reducing the dead weight of the gate body, reducing the energy consumption required by the gate hoist when lifting the gate, and improving the operating efficiency of the equipment. On the other hand, setting up these cavities can also reduce the material used in the gate body. By reasonably designing the position and size of the cavity, the material usage is reduced while ensuring the structural strength of the gate, reducing the production cost, and also reducing the overall weight of the gate, making it easier to install and transport.

[0026] Among them: the protective shell is arranged on the side away from the water flow direction. Since the protective shell is away from the direct impact of the water flow, the risk of erosion and damage to the protective shell by the water flow is reduced, and the service life of the protective shell is extended. At the same time, this position setting is convenient for maintenance personnel to carry out equipment maintenance and repair work. When it is necessary to inspect and repair the cylinder, gear frame and other components inside the extension chamber, the maintenance personnel can operate in a relatively safe and dry environment, avoiding the interference of water flow on the maintenance work, and improving the efficiency and safety of maintenance.

[0027] 2. When the gate body is not opened, the collecting shaft is located at the rear side of the gate body. At this time, the natural flow of sludge and water will cause the collecting shaft and the impeller to rotate. This rotation can make the collecting shaft and the impeller fully contact with the sludge at different positions. Since the impellers are arranged in a circular shape and equidistantly on the outer surface of the collecting shaft, as the collecting shaft rotates, the impeller can cover a wider area to avoid local pushing. In this way, whether it is the corner behind the gate or other difficult-to-reach areas, the sludge can be effectively contacted and absorbed, achieving all-round coverage and absorption of the sludge, greatly improving the coverage of dredging, and effectively solving the dead corner problem of traditional dredging methods.

[0028] Among them: when the sludge accumulates to a certain extent on the impeller surface, the water flow can no longer make the collecting shaft rotate. At this time, the sludge can only accumulate behind the collecting shaft. This design cleverly changes the accumulation position of the sludge and avoids the accumulation of sludge on the gate body. Since the sludge accumulates on the gate body, the pressure on the gate will gradually increase, posing a serious threat to the structural stability of the gate. Now that the sludge accumulates behind the collecting shaft, the risk of damage to the gate body is greatly reduced, which helps to maintain the structural stability of the gate, extend the service life of the gate, reduce the maintenance cost of water conservancy facilities, and ensure the normal operation of water conservancy projects.

[0029] Among them: when the gate body is opened, the gate body touches the contact plate through the contact block, so that the collecting shaft rotates and moves backward and upward based on the lever principle. In this process, the silt on the surface of the collecting shaft will fall off naturally. At the same time, the impact of the water flow, the rotation of the collecting shaft itself and the tilting force work together to clean the silt more thoroughly. The impact of the water flow can wash away some loosely attached silt. The rotation of the collecting shaft can make the silt fall off more easily under the action of centrifugal force, and the tilting force helps the silt to slide down along the tilting direction. The synergistic effect of multiple forces greatly improves the dredging effect, avoids the residue and accumulation of silt, and makes the dredging work more efficient and thorough.

[0030] Among them: through the rotation and tilting of the collecting shaft, the water flow can be guided to a specific direction, avoiding stagnation and turbulence of the water flow in local areas and optimizing the water flow environment. This not only helps to clean and discharge the silt, but also reduces the silt coagulation and blockage problems caused by poor water flow, further improving the efficiency of dredging, and is also beneficial to the overall stable operation of the water conservancy project. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a frontal perspective schematic diagram of the main structure of the present invention; Figure 2 It is a rear perspective schematic diagram of the main structure of the present invention; Figure 3It is a cross-sectional stereoscopic schematic diagram of the main structure of the present invention; Figure 4 For the present invention Figure 3 A in the middle is an enlarged three-dimensional schematic diagram of the structure; Figure 5 For the present invention Figure 3 The enlarged three-dimensional schematic diagram of the structure at B in the middle; Figure 6 It is a partially cutaway stereoscopic schematic diagram of the pressure relief assembly of the present invention; Figure 7 It is a three-dimensional schematic diagram of the pressure relief assembly of the present invention; Figure 8 It is a partially cutaway stereoscopic schematic diagram of the anti-blocking component of the present invention.

[0032] In the figure: 11. Wall; 12. Hoist; 13. Slide rail; 14. Gate body; 2. Pressure relief assembly; 21. Cavity; 22. Pressure relief shaft; 23. Pressure relief door plate; 24. Pressure relief step; 25. Arc guide block; 26. Arc guide groove; 27. Extension cavity; 28. Cylinder; 29. ​​Gear frame; 210. Gear block; 3. Anti-blocking assembly; 31. Resistance block; 32. Rotating shaft; 33. Resistance plate; 34. Collecting shaft; 35. Impeller. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that the gate hoist 12 only provides the gate body 14 with the function of moving up and down, and the working principle and specific structure of the gate hoist 12 are both existing technologies. Therefore, in view of the versatility of the gate hoist 12, its specific principle will not be repeated later.

[0035] Example 1, please refer to Figure 1-4As shown, a water conservancy project gate with automatic diversion and pressure relief function includes a wall 11, a gate hoist 12 is installed on the top of the wall 11, a slide rail 13 is symmetrically installed inside the wall 11, a gate body 14 slidably connected to the inner wall of the slide rail 13 is installed at the bottom of the gate hoist 12, and a pressure relief component 2 is arranged below the gate hoist 12. The pressure relief component 2 includes two cavities 21, and the two cavities 21 are symmetrically opened in the lower middle position of the gate body 14. A pressure relief shaft 22 is rotatably connected inside the cavity 21, and two pressure relief door panels 23 are fixedly connected to each pressure relief shaft 22 in left and right positions, and a pressure relief step 24 is symmetrically fixedly connected to the inner wall of the cavity 21.

[0036] Please refer to Figure 4-7 As shown, two pressure relief door plates 23 which are distributed in upper and lower positions and located on the same side of the pressure relief shaft 22 are arranged as a group, and the sides of each group of pressure relief door plates 23 which are close to each other gradually shrink, and each group of pressure relief door plates 23 forms a V-shaped structure, and an extension cavity 27 is opened in the middle of the gate body 14, and a cylinder 28 is installed inside the extension cavity 27, and a gear frame 29 is fixedly connected to the bottom of the cylinder 28, and gear blocks 210 are fixedly connected in a circular and equidistant manner in the middle of the pressure relief shaft 22.

[0037] It should be noted that the inclination direction of each set of pressure relief door plates 23 is opposite to the direction of water flow, the two sides of the gate body 14 are equidistantly reduced and concave inward, and the inner wall of the gate body 14 is symmetrically fixedly connected with pressure relief steps 24, and the pressure relief steps 24 are adapted to the shape of the pressure relief door plates 23. The bottom of the gate body 14 is linearly and equidistantly arranged and fixedly connected with a number of arc guide blocks 25, and the side of the wall 11 close to the gate body 14 is linearly and equidistantly arranged with arc guide grooves 26, the arc guide blocks 25 and the arc guide grooves 26 are both inclined, and their contracted ends are close to the direction of water flow, the tooth frame 29 and the tooth block 210 are meshed with each other, and the teeth on both sides of the tooth frame 29 are oppositely arranged, and a protective shell is installed on the outside of the extension cavity 27, and the protective shell is located on the side away from the water flow direction.

[0038] Specifically, when it is necessary to perform a pressure relief operation on the gate body 14, first, start the cylinder 28, and the output end of the cylinder 28 drives the gear frame 29 fixedly connected thereto to move upward. Since the gear frame 29 and the gear blocks 210 fixedly connected thereto and arranged in a ring-shaped manner and equidistantly in the middle of the pressure relief shaft 22 are meshed with each other, according to the principle of gear transmission, the upward movement of the gear frame 29 will drive the gear blocks 210 to rotate, and then the pressure relief shaft 22 will rotate accordingly. The rotation of the pressure relief shaft 22 will drive the pressure relief door plate 23 fixed thereon to rotate.

[0039] It should be noted that the V-shaped structural design composed of each group of pressure relief door panels 23 has significant advantages. On the one hand, when the gate body 14 is not opened for pressure relief, the side of each group of pressure relief door panels 23 that are close to each other gradually shrinks. This structure makes the contact area of ​​the side of the pressure relief door panels 23 smaller. Under the action of water flow pressure, the smaller contact area can increase the pressure per unit area, thereby enhancing the sealing of the gate body 14, effectively preventing water leakage when pressure relief is not required, and ensuring the safety and stability of the water conservancy project under normal water storage conditions.

[0040] On the other hand, when it is necessary to open the pressure relief, the V-structured pressure relief door plate 23 can better adapt to the impact of water flow and pressure changes. As the pressure relief door plate 23 rotates and opens, the V-structure can guide the water to flow out in a specific direction, reducing the impact force of the water flow on the gate body 14, making the pressure relief process smoother and more orderly, avoiding damage to the gate body 14 due to excessive impact of the water flow, and at the same time, it is also beneficial to improve the efficiency of pressure relief.

[0041] Subsequently, when the pressure relief door plate 23 is opened, the water flow will overflow through the pressure relief door plate 23, thereby realizing the pressure relief function. In this process, the pressure relief step 24 and the shape of the pressure relief door plate 23 are adapted to each other, which can provide a transition area for the water flow and guide the water flow to flow out more smoothly. When the water flows through the pressure relief step 24, the flow rate and direction of the water flow will be reasonably adjusted to avoid the formation of turbulence and vortexes inside the gate body 14, reduce the scouring and erosion of the gate body 14 by the water flow, and further protect the stability and durability of the gate body 14.

[0042] After the pressure relief is completed, the gate opening and closing machine 12 starts to work, driving the gate body 14 to rise along the slide rail 13, thereby realizing the flood discharge function. In this process, since the arc guide block 25 and the arc guide groove 26 are both inclined and their contracted ends are close to the direction of water flow, when the gate body 14 rises, the arc guide block 25 will gradually detach from the arc guide groove 26. In this process, due to the special shape and inclined setting of the arc guide block 25 and the arc guide groove 26, the water flow will flow along the direction guided by the arc guide block 25 and the arc guide groove 26. This design can optimize the flow direction of the water flow, make the water flow more concentrated and orderly through the gate, and improve the efficiency of flood discharge. At the same time, the cooperation of the arc guide block 25 and the arc guide groove 26 can also reduce the impact force of the water flow on the gate body 14 and the wall 11 to a certain extent, reduce the risk of wear and damage to the equipment, and extend the service life of the gate of the water conservancy project.

[0043] In addition, the protective shell installed outside the extension chamber 27 is located on the side away from the water flow direction, which can effectively protect key components such as the cylinder 28 and the gear frame 29 inside the extension chamber 27, prevent them from being eroded and damaged by impurities such as water flow and mud, and ensure the normal operation of the entire pressure relief and flood discharge system.

[0044] Example 2, based on Example 1, please refer to Figure 2-3 as well as Figure 8 As shown, an anti-blocking component 3 is provided on the inner wall of the wall 11, and the anti-blocking component 3 includes two resistance blocks 31, and the two resistance blocks 31 are respectively installed on both sides of the gate body 14, and a rotating shaft 32 is fixedly connected to the inner wall of the wall 11, and the outer surface of the rotating shaft 32 is symmetrically rotatably connected to the resistance plate 33, and the bottom of the resistance plate 33 is rotatably connected to the collecting shaft 34, and the outer surface of the collecting shaft 34 is fixedly connected to the impeller 35 arranged in a ring shape and equidistantly.

[0045] It should be noted that a reinforcing rib is installed between the bottom of the resistance block 31 and the gate body 14, the upper and middle part of the resistance plate 33 is set as an arc-shaped depression that matches the shape of the resistance block 31, and the bottom of the resistance plate 33 expands toward one side of the water flow direction.

[0046] Specifically, when the gate body 14 is in an unopened state, the water continues to flow in the water conservancy facility. Since a certain amount of sludge is inevitably mixed in the water body, as the water continues to flow, the sludge will gradually be distributed in the area where the collecting shaft 34 and the impeller 35 are located. This is because when the water flows through this area, it will carry the sludge here together.

[0047] At this time, since the mass of sludge is greater than that of water, under the action of gravity, the sludge tends to settle downwards. At the same time, the water flow will have an impact on the impeller 35 during the flow. According to the principles of fluid mechanics, the impact force of the water flow will be applied to the surface of the impeller 35, thereby generating a torque, causing the collection shaft 34 to start rotating.

[0048] The rotation of the collecting shaft 34 drives the impellers 35 which are fixedly connected and arranged in a circular shape and at equal intervals on its outer surface to rotate together. This rotation realizes all-round contact between the impeller 35 and the sludge. The rotation of the impeller 35 enables it to interact with the sludge at different positions, thus avoiding the situation where excessive sludge accumulates in local areas while other areas cannot be effectively cleaned.

[0049] As time goes by, sludge accumulates on the surface of the impeller 35. When the accumulation of sludge reaches a certain level, the impact force of the water flow on the impeller 35 will not be able to overcome the resistance brought by the sludge, and the impeller 35 will not be able to continue to rotate. In this case, the sludge will be blocked by the impeller 35 behind the gate body 14.

[0050] This blocking effect is of great significance. From the perspective of mechanical balance, excessive sludge accumulated behind the gate body 14 will generate greater pressure on the gate body 14, affecting the structural stability of the gate. The blocking effect of the impeller 35 can prevent excessive sludge from directly accumulating behind the gate body 14, thereby effectively reducing the pressure of the sludge on the gate body 14 and protecting the structural safety of the gate.

[0051] When the water conservancy project needs to discharge flood water, as described in the first embodiment, the gate body 14 will rise under the action of the gate hoist 12 . During the rising process of the gate body 14 , the resistance blocks 31 installed on both sides of the gate body 14 will conflict with the resistance plates 33 .

[0052] Since the middle and upper part of the contact plate 33 is set to be an arc-shaped depression that is adapted to the shape of the contact block 31, when the contact block 31 contacts the contact plate 33, the two can fit better, so that the contact plate 33 is subjected to an outward force. According to the lever principle, the contact plate 33 will rotate around the rotating shaft 32, and its lower part will rotate toward the side away from the gate body 14.

[0053] As the resistance plate 33 rotates, the collecting shaft 34 rotatably connected to the bottom of the resistance plate 33 will also move accordingly, thereby lifting the impeller 35 toward the side away from the gate body 14. At this time, due to the high water pressure of the water flow during flood discharge and the impeller 35 having been lifted and in a tilted state, the silt on the surface of the impeller 35 will be affected by forces in multiple directions under the combined effects of the tilting force, the impact force of the water flow and the gravity of the silt itself.

[0054] The tilting force will cause the silt to tend to slide downward, the impact force of the water flow will wash the silt off the surface of the impeller 35, and the silt's own weight will also cause it to leave the surface of the impeller 35. Under the synergistic effect of these forces, the silt on the surface of the impeller 35 will be washed away by the water flow, thereby achieving effective cleaning of the silt on the surface of the impeller 35, ensuring that the anti-blocking component 3 can continue to operate normally in subsequent work and maintain the good working condition of the water conservancy project gate.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic engineering gate with automatic diversion and pressure relief function, comprising a wall (11), a gate hoist (12) installed on the top of the wall (11), a slide rail (13) symmetrically installed inside the wall (11), and a gate body (14) slidably connected to the inner wall of the slide rail (13) installed at the bottom of the gate hoist (12), characterized in that: A pressure relief assembly (2) is provided below the gate hoist (12), the pressure relief assembly (2) comprising two cavities (21), the two cavities (21) being symmetrically arranged at the lower middle portion of the gate body (14), a pressure relief shaft (22) being rotatably connected inside the cavity (21), two pressure relief door plates (23) being fixedly connected to each of the pressure relief shafts (22) in left and right positions, and a pressure relief step (24) being symmetrically fixedly connected to the inner wall of the cavity (21).

2. A hydraulic engineering gate with automatic diversion and pressure relief function according to claim 1, characterized in that: Two pressure relief door plates (23) that are distributed in an upper and lower position and located on the same side of the pressure relief shaft (22) are arranged as a group, and the sides of each group of pressure relief door plates (23) that are close to each other gradually shrink, and each group of pressure relief door plates (23) forms a V-shaped structure.

3. A hydraulic engineering gate with automatic diversion and pressure relief function according to claim 2, characterized in that: The inclination direction of each group of pressure relief door plates (23) is opposite to the direction of water flow.

4. A hydraulic engineering gate with automatic diversion and pressure relief function according to claim 1, characterized in that: Both sides of the gate body (14) are equidistantly reduced and inwardly concave, and pressure relief steps (24) are symmetrically fixedly connected to the inner wall of the gate body (14), and the pressure relief steps (24) are mutually adapted in shape to the pressure relief door plate (23).

5. The hydraulic engineering gate with automatic diversion and pressure relief function according to claim 1 is characterized by: The bottom of the gate body (14) is fixedly connected with a plurality of arc-shaped guide blocks (25) arranged linearly and equidistantly, and the side of the wall (11) close to the gate body (14) is provided with arc-shaped guide grooves (26) arranged linearly and equidistantly.

6. A hydraulic engineering gate with automatic diversion and pressure relief function according to claim 5, characterized in that: The arc-shaped guide block (25) and the arc-shaped guide groove (26) are both arranged at an inclination, and their contracted ends are close to the direction of water flow.

7. A hydraulic engineering gate with automatic diversion and pressure relief function according to claim 4, characterized in that: An extension cavity (27) is provided in the middle of the gate body (14), a cylinder (28) is installed inside the extension cavity (27), a gear frame (29) is fixedly connected to the bottom of the cylinder (28), and gear blocks (210) are fixedly connected to the middle of the pressure relief shaft (22) in an annular and equidistant arrangement.

8. A hydraulic engineering gate with automatic diversion and pressure relief function according to claim 7, characterized in that: The tooth frame (29) and the tooth block (210) are meshed with each other, the teeth on both sides of the tooth frame (29) are arranged opposite to each other, and a protective shell is installed outside the extension cavity (27), and the protective shell is located on the side away from the water flow direction.

9. A hydraulic engineering gate with automatic diversion and pressure relief function according to any one of claims 1 to 8, characterized in that: An anti-blocking component (3) is arranged on the inner wall of the wall (11), and the anti-blocking component (3) comprises two resistance blocks (31), and the two resistance blocks (31) are respectively installed on both sides of the gate body (14); a rotating shaft (32) is fixedly connected to the inner wall of the wall (11); a resistance plate (33) is symmetrically rotatably connected to the outer surface of the rotating shaft (32); a collecting shaft (34) is rotatably connected to the bottom of the resistance plate (33); and the outer surface of the collecting shaft (34) is fixedly connected to impellers (35) arranged in an annular manner and at equal intervals.

10. A hydraulic engineering gate with automatic diversion and pressure relief function according to claim 9, characterized in that: A reinforcing rib is installed between the bottom of the resistance block (31) and the gate body (14); the upper middle portion of the resistance plate (33) is provided as an arc-shaped depression that matches the shape of the resistance block (31); and the bottom of the resistance plate (33) expands toward one side in the direction of water flow.

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