Reservoir lifting gate for hydraulic engineering

Abstract

The utility model discloses a reservoir lifting gate for hydraulic engineering. The reservoir lifting gate mainly comprises an assembling frame, a valve plate assembly, a lifting assembly, a dredging assembly and a driving assembly. The valve plate assembly slides and ascends and descends in the assembling frame in the vertical direction. The lifting assembly is composed of a threaded rod and a threaded seat, the threaded rod is fixed to the top of the valve plate assembly, and the threaded seat rotates on the top of the frame. The dredging assembly is provided with a transmission shaft and an installation roller, cleaning brushes evenly arranged on the roller are tightly attached to the outer surface of the valve plate, and reverse operation is achieved through reversing gears installed at the ends of the two rollers. The driving assembly is installed at the top of the frame and connected with the threaded base and the transmission shaft, and therefore the valve plate is controlled to ascend and descend and desilting operation. By means of the design, the operation efficiency and safety of the lifting gate are improved, meanwhile, the maintenance cost is remarkably reduced, and economic benefits are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy gates, in particular to a lifting gate for a reservoir in a water conservancy project. Background Art

[0002] As a key facility in water conservancy projects, the main function of reservoir lifting gates is to regulate the water level and flow of the reservoir and ensure the safety and efficiency of reservoir operation. In traditional lifting gate designs, most use winches or screw mechanisms to control the lifting of the valve plate. Although these methods are reliable in some applications, they have several limitations and technical problems, especially in terms of silt removal efficiency, valve plate protection, and power transmission efficiency.

[0003] First, most of the existing reservoir lifting gates are not equipped with special silt removal components. In the reservoir environment, sediment deposition is a common phenomenon, especially on the working surface of the valve plate. During long-term operation, the valve plate is prone to silt adhesion, which not only increases the operating resistance, but also may cause damage to the valve plate structure. The accumulation of silt will also seriously affect the sealing performance of the valve plate, and then affect the water diversion capacity and safety of the entire reservoir. Due to the lack of effective silt removal design, the silt accumulated on the valve plate of the traditional lifting gate is difficult to be effectively removed, and long-term accumulation may cause the gate to fail or become difficult to operate.

[0004] Secondly, the desilting components in existing solutions are often not designed properly. In some designs, although desilting is taken into consideration, in actual operation, it is difficult for the desilting components to completely sweep the silt on the valve plate surface into the water flow, causing the silt to accumulate at the gate, affecting the normal flow of water. This design deficiency not only affects the drainage efficiency of the reservoir, but may also increase the frequency and cost of maintenance.

[0005] In addition, regarding the lifting mechanism itself, traditional gates mostly rely on winches or direct screw drives, and their self-locking function is often insufficient to resist the gravity of the valve plate, which easily causes the valve plate to sink due to gravity. The instability of this structure not only affects the safety of operation, but also reduces the service life of the equipment. At the same time, these mechanisms usually require a high-power motor to drive the lifting of the valve plate, which increases the overall investment cost and affects the economic benefits. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a reservoir lifting gate for water conservancy projects, which improves the operating efficiency and safety of the reservoir lifting gate, significantly reduces maintenance costs, and improves the overall economic benefits.

[0007] The technical solution adopted by the utility model to achieve the above-mentioned purpose is: a lifting gate for a reservoir used in a water conservancy project, including an assembly frame and a valve plate assembly, a lifting assembly, a silt removal assembly, and a driving assembly matched with the assembly frame. The valve plate assembly is slidably installed in the assembly frame and lifted and lowered in the vertical direction.

[0008] The lifting assembly includes a threaded rod and a threaded seat. The threaded rod is fixedly combined with the top of the valve plate assembly. The threaded seat is rotatably installed on the top of the assembly frame and is screwed to the threaded seat.

[0009] The dredging assembly includes a transmission shaft, mounting rollers and cleaning brushes evenly mounted on the mounting rollers. The mounting rollers are rotatably mounted on both sides of the valve plate assembly and maintained in a horizontal arrangement. The cleaning brushes are in contact with the outer surface of the valve plate assembly. The same end of the two groups of mounting rollers is fixedly connected with a reversing gear that maintains meshing. The transmission shaft maintains a power connection with one group of mounting rollers.

[0010] The driving assembly is assembled on the top of the assembly frame and maintains power connection with the threaded seat and the transmission shaft.

[0011] In some of the implementations, in order to facilitate the disassembly and assembly of the valve plate assembly in the assembly frame and ensure that the valve plate assembly can be stably lifted and lowered in the vertical direction in the assembly frame, the following technical solutions are provided.

[0012] Vertically arranged lifting guide rails are fixedly installed on the inner walls on both sides of the assembly frame; the valve plate assembly includes a supporting pulley, an assembly base plate and water baffles fixed on both sides of the assembly base plate, and both sides of the assembly base plate are provided with assembly grooves, the supporting pulley is arranged in the assembly groove and rotatably installed on the water baffle, the lifting guide rail and the supporting pulley are kept in a matching combination, and the water baffle is kept in contact with the inner wall of the assembly frame.

[0013] In some of the implementations, in order to ensure that the threaded rod can be fixedly combined with the valve plate assembly and facilitate the disassembly and maintenance of the threaded rod from the valve plate assembly, the following technical solutions are provided.

[0014] A connecting seat is fixedly connected to the top of the assembly base plate, and a vertically arranged spline groove is opened on the connecting seat. A spline shaft that is nested and plugged in the spline groove is fixedly connected to the bottom end of the threaded rod. A limiting ring seat is fixedly connected between the spline shaft and the connecting seat. A positioning ring cover arranged above the limiting ring seat is sleeved on the outer side of the threaded rod, and the positioning ring cover is screwed to the connecting seat.

[0015] In some of the implementations, in order to ensure that the drive assembly can drive the threaded seat to operate stably and thus drive the threaded rod to move up and down, while avoiding the valve plate assembly and the threaded rod from sinking due to the gravity of the valve plate assembly, the following technical solutions are provided.

[0016] The driving assembly includes a driving motor, a driving shaft, and a matching worm wheel and worm gear. The driving shaft is rotatably mounted on the top of the assembly frame and fixedly connected to the output shaft of the driving motor. The worm wheel and worm gear are fixedly connected to the threaded seat and the driving shaft respectively.

[0017] In some of the implementations, in order to ensure that the power at the drive shaft end can be stably transmitted to the transmission shaft and thus drive the dredging assembly to operate stably, and at the same time realize that the dredging assembly only operates during the movement of the valve plate assembly rising and is in a stationary state during the descent of the valve plate assembly, so as to ensure that the silt on the outside of the water retaining plate can be swept down to the bottom of the valve plate assembly, the following technical solutions are provided.

[0018] The drive assembly also includes a mounting sleeve, an inner ratchet, and a pawl. The mounting sleeve is rotatably mounted on the top of the assembly frame and is coaxially arranged with the drive shaft. The transmission shaft maintains a power connection with the mounting sleeve. The inner ratchet is fixedly mounted inside the mounting sleeve. Multiple groups of pawls distributed in a circular array are rotatably mounted on the periphery of the drive shaft, and the pawls are meshed with the inner ratchet.

[0019] In some implementations, to ensure that the mounting sleeve can stably transmit power to the mounting shaft, a driving bevel gear is fixed to the mounting sleeve, and a driving bevel gear meshing with the driving bevel gear is fixed to the top end of the transmission shaft.

[0020] Beneficial effects of the utility model:

[0021] 1. Effective silt removal function: The silt removal component design in this solution includes mounting rollers installed on both sides of the valve plate and cleaning brushes arranged on the mounting rollers. This configuration allows the cleaning brushes to rotate in the opposite direction during the valve plate lifting process, effectively sweeping the silt on the outside of the valve plate into the water flow. This not only prevents the accumulation of silt at the lifting gate, but also reduces the corrosion and wear of the valve plate caused by long-term silt adhesion, greatly improving the service life and reliability of the valve plate.

[0022] 2. Improved lifting mechanism: By using the combination of threaded rod and threaded seat and the self-locking function of worm gear, this solution significantly improves the lifting control of the valve plate. This design makes the valve plate more stable when lifting and lowering, with excellent self-locking effect, which can effectively prevent the sinking problem caused by the gravity of the valve plate and enhance the safety and stability of the entire system.

[0023] 3. Energy saving and cost-effectiveness: By adopting the worm gear mechanism, while providing the necessary torque and force, it also has a significant deceleration effect, which means that a smaller power motor can be used to drive the entire lifting system. In addition, the self-locking characteristics of the worm gear reduce the energy consumption required to maintain the position, thereby reducing operating costs.

[0024] 4. Structural stability and easy maintenance: By fixing the vertically arranged lifting rails on the inner walls on both sides of the assembly frame, and by using positioning strips and rivet technology to achieve stable assembly of the valve plate assembly, it not only ensures the high stability of the structure, but also facilitates the rapid disassembly and maintenance of the valve plate assembly, reducing maintenance time and cost.

[0025] In summary, the reservoir lifting gate of the present application provides a solution with reliable structure, high efficiency, easy maintenance and significant economic benefits through its innovative design, which can meet the needs of modern water conservancy projects for efficient and reliable water flow control. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0028] Figure 3 is a detailed structural diagram of the valve plate assembly;

[0029] Figure 4 It is a structural schematic diagram of the threaded rod and the assembly base plate;

[0030] Figure 5 It is a structural diagram of the combination of the driving component, the dredging component and the lifting component;

[0031] Figure 6 This is a schematic diagram of the structure when the sleeve, drive shaft and pawl are cut and disassembled.

[0032] In the figure: 1 assembly frame, 11 support angle seat, 12 lifting guide rail, 13 diagonal support rod, 14 mounting seat, 15 mounting bracket, 2 valve plate assembly, 21 support pulley, 22 assembly base plate, 221 assembly groove, 222 positioning strip, 223 rivet, 224 connecting seat, 23 water retaining plate, 31 threaded rod, 311 spline shaft, 312 limit ring seat, 313 positioning ring cover, 32 threaded seat, 41 transmission shaft, 411 bevel gear A, 412 transmission bevel gear, 42 mounting roller, 421 reversing gear, 422 bevel gear B, 43 cleaning brush, 51 drive motor, 52 drive shaft, 521 reed, 53 worm gear, 54 worm, 55 mounting sleeve, 551 drive bevel gear, 56 inner ratchet, 57 ratchet. DETAILED DESCRIPTION

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

[0034] See also Figure 1-6 A lifting gate for a reservoir used in a water conservancy project includes an assembly frame 1 and a valve plate assembly 2, a lifting assembly, a silt removal assembly, and a driving assembly that are matched and installed on the assembly frame 1. The valve plate assembly 2 is slidably installed in the assembly frame 1 and is lifted and lowered in the vertical direction.

[0035] The lifting assembly includes a threaded rod 31 and a threaded seat 32 . The threaded rod 31 is fixedly assembled with the top of the valve plate assembly 2 . The threaded seat 32 is rotatably mounted on the top of the assembly frame 1 and is screwed to the threaded seat 32 .

[0036] The dredging assembly includes a transmission shaft 41, mounting rollers 42 and cleaning brushes 43 evenly mounted on the mounting rollers 42. The mounting rollers 42 are rotatably mounted on both sides of the valve plate assembly 2 and maintained in a horizontal arrangement. The cleaning brushes 43 are in contact with the outer surface of the valve plate assembly 2. The same end of the two sets of mounting rollers 42 is fixedly connected with a reversing gear 421 that maintains meshing. The transmission shaft 41 maintains a power connection with one set of mounting rollers 42.

[0037] The driving assembly is assembled on the top of the assembly frame 1 and maintains power connection with the threaded seat 32 and the transmission shaft 41 .

[0038] The valve plate assembly 2 can effectively block the internal opening of the assembly frame 1 to prevent water from flowing through the assembly frame 1. The driving mechanism drives the lifting assembly to operate to realize the lifting movement of the valve plate assembly 2 in the assembly frame 1. The opening and closing posture of the bottom of the opening of the assembly frame 1 can be regulated, thereby effectively regulating the water flow.

[0039] The specific implementation principle is that when the driving assembly drives the threaded seat 32 to operate, the threaded seat 32 and the threaded rod 31 act to drive the threaded rod 31 to move up and down in the vertical direction, thereby driving the valve plate assembly 2 fixedly combined with the threaded rod 31 to achieve synchronous lifting and lowering.

[0040] The dredging assembly can also be driven by the driving assembly. When the valve plate assembly 2 rises upward, the two sets of mounting rollers 42 and the cleaning brushes 43 operate to clean and sweep away the silt attached to the outside of the valve plate assembly 2, and finally the silt is washed away by the passing water flow.

[0041] The specific implementation principle is that when the driving assembly drives the transmission shaft 41 to operate, the power can be transmitted to the installation roller 42 which is directly connected to the transmission shaft 41, and then through the combination of two sets of reversing gears 421, the two sets of installation rollers 42 and the cleaning brushes 43 thereon can be operated in reverse, and the cleaning brushes 43 can clean the silt on both sides of the valve plate assembly 2.

[0042] A bevel gear A411 is fixedly connected to the bottom of the transmission shaft 41 , and a bevel gear B422 meshing with the bevel gear A411 is fixedly connected to the end of one set of mounting rollers 42 , thereby achieving power connection between the transmission shaft 41 and the mounting rollers 42 .

[0043] In order to ensure that the assembly frame 1 can be stably assembled on the water outlet or water diversion channel of the reservoir, a supporting angle seat 11 is fixedly connected to the outer side of the assembly frame 1. The supporting angle seat 11 can be fixed by bolts pre-buried on the water outlet or water diversion channel, and the assembly frame 1 can also be assembled to the water outlet or water diversion channel in a pre-buried manner to ensure the stability of the installation of the assembly frame 1.

[0044] In order to prevent the reversing gear 421 from being eroded by water flow and rusted, which may affect its normal operation, the mounting roller 42 and the reversing gear 421 are both assembled to the top of the water outlet or the water diversion channel so that they are above the water surface.

[0045] To further ensure the structural stability of the assembly frame 1, diagonal braces 13 are welded at the corners of the internal opening of the assembly frame 1. To ensure that the transmission shaft 41 is stably installed on the outside of the assembly frame 1 in a relatively rotating manner, a mounting seat 14 is also fixed to the outer wall of the assembly frame 1. The transmission shaft 41 is rotatably installed in the mounting seat 14 and is arranged in the vertical direction.

[0046] In order to facilitate the disassembly and assembly of the valve plate assembly 2 in the assembly frame 1 and ensure that the valve plate assembly 2 can be stably lifted and lowered in the assembly frame 1 along the vertical direction, the following technical solution is provided.

[0047] Vertically arranged lifting guide rails 12 are fixedly installed on the inner walls on both sides of the assembly frame 1; the valve plate assembly 2 includes a supporting pulley 21, an assembly base plate 22 and water baffles 23 fixed on both sides of the assembly base plate 22, and both sides of the assembly base plate 22 are provided with assembly grooves 221, the supporting pulley 21 is arranged in the assembly groove 221 and is rotatably installed on the water baffle 23, the lifting guide rail 12 and the supporting pulley 21 are kept in a matching combination, and the water baffle 23 is kept in contact with the inner wall of the assembly frame 1.

[0048] Compared with the water baffle 23, the width of the assembly base plate 22 is smaller to avoid spatial movement interference with the lifting guide rail 12 installed on the same vertical plane. Support pulleys 21 are provided at the upper and lower ends of both sides of the assembly base plate 22. Through the matching combination of the support pulley 21 and the lifting guide rail 12, the overall resistance of the lifting movement of the valve plate assembly 2 can be reduced, and the water baffles 23 on both sides can effectively block the water flow in the water outlet or the water diversion channel from passing through the internal opening of the assembly frame 1.

[0049] Positioning strips 222 arranged in the vertical direction are evenly fixed to the two side surfaces of the assembly base plate 22. The inner side surface of the water baffle plate 23 is nested and matched with the positioning strips 222, and the outer water baffle plate 23 is fixedly combined with the inner assembly base plate 22 by rivets 223 that penetrate the positioning strips 222 and the water baffle plate 23, thereby ensuring the stability of the overall structure of the valve plate assembly 2.

[0050] The cleaning brush 43 is arranged on the outer side of the water baffle 23 to effectively clean the sludge attached to the outer side of the water baffle 23 .

[0051] In order to ensure that the threaded rod 31 can be fixedly combined with the valve plate assembly 2 and facilitate the disassembly and maintenance of the threaded rod 31 from the valve plate assembly 2, the following technical solution is provided.

[0052] A connecting seat 224 is fixedly connected to the top of the assembly base plate 22, and a vertically arranged spline groove is opened on the connecting seat 224. A spline shaft 311 which is nested and plugged in the spline groove is fixedly connected to the bottom end of the threaded rod 31. A limiting ring seat 312 is fixedly connected between the spline shaft 311 and the connecting seat 224. A positioning ring cover 313 arranged above the limiting ring seat 312 is sleeved on the outer side of the threaded rod 31, and the positioning ring cover 313 is screwed to the connecting seat 224.

[0053] The setting of the connecting seat 224 can realize the fixed combination of the valve plate assembly 2 and the threaded rod 31. The threaded rod 31 is fixed by the plug-in combination of the spline shaft 311 and the spline groove, and the positioning ring cover 313 can be installed from the top of the threaded rod 31 and abut against the limiting ring seat 312. After the positioning ring cover 313 and the connecting seat 224 are screwed together, the threaded rod 31 and the valve plate assembly 2 can be completely fixed, ensuring that the threaded rod 31 and the valve plate assembly 2 can only be stably lifted and lowered in the vertical direction.

[0054] In order to ensure that the driving assembly can drive the threaded seat 32 to operate stably and then drive the threaded rod 31 to move up and down, while avoiding the valve plate assembly 2 and the threaded rod 31 from sinking due to the gravity of the valve plate assembly 2, the following technical solution is provided.

[0055] The driving assembly includes a driving motor 51, a driving shaft 52, and a matching combination of a worm gear 53 and a worm 54. The driving shaft 52 is rotatably mounted on the top of the assembly frame 1 and is fixedly connected to the output shaft of the driving motor 51. The worm gear 53 and the worm 54 are fixedly connected to the threaded seat 32 and the driving shaft 52 respectively.

[0056] When the driving motor 51 drives the driving shaft 52 and the worm 54 thereon to operate, it can drive the worm wheel 53 and the threaded seat 32 fixed to the worm wheel 53 to operate stably, and then drive the threaded rod 31 and the valve plate assembly 2 to achieve lifting movement. At the same time, the combined structure of the worm wheel 53 and the worm 54 also has a self-locking effect and a deceleration and torque increase effect. The driving motor 51 can drive the heavy valve plate assembly 2 to rise and fall stably. The power at the worm 54 end can only be transmitted to the worm wheel 53 in one direction, and the power at the worm wheel 53 end cannot be transmitted to the worm 54 in the reverse direction. After the position adjustment of the valve plate assembly 2 is completed, the worm wheel 53 and the worm 54 achieve self-locking, which can effectively bear the weight of the valve plate assembly 2 to prevent it from sinking.

[0057] In order to ensure that the power at the end of the drive shaft 52 can be stably transmitted to the transmission shaft 41 and thus drive the dredging assembly to operate stably, and at the same time realize that the dredging assembly only operates during the movement of the valve plate assembly 2 rising, and is in a stationary state during the descent of the valve plate assembly 2, to ensure that the silt on the outside of the water retaining plate 23 can be swept down to the bottom of the valve plate assembly 2, the following technical solution is provided.

[0058] The drive assembly also includes a mounting sleeve 55, an inner ratchet 56, and a pawl 57. The mounting sleeve 55 is rotatably mounted on the top of the assembly frame 1 and is coaxially arranged with the drive shaft 52. The transmission shaft 41 maintains a power connection with the mounting sleeve 55. The inner ratchet 56 is fixedly mounted inside the mounting sleeve 55. A plurality of groups of pawls 57 distributed in a circular array are rotatably mounted on the periphery of the drive shaft 52, and the pawls 57 are meshed with the inner ratchet 56.

[0059] A leaf spring 521 is also installed between the pawl 57 and the drive shaft 52 , and the leaf spring 521 supports the pawl 57 to always expand outward to keep in mesh with the ratchet teeth of the inner ratchet wheel 56 .

[0060] When the driving shaft 52 rotates forward, the valve plate assembly 2 is driven to rise, and at the same time, the pawl 57 is driven to operate. At this time, the pawl 57 is in a meshing state with the inner ratchet 56, thereby driving the installation sleeve 55 to operate, and the two sets of installation rollers 42 and the cleaning brushes 43 thereon are driven to operate through the transmission shaft 41 to clean the silt attached to the outer side of the rising valve plate assembly 2 into the water flow.

[0061] When the driving shaft 52 reverses, the valve plate assembly 2 is driven to descend. At this time, the running pawl 57 is retracted inward by the inner ratchet 56, and the power cannot be effectively transmitted. At this time, the mounting sleeve 55 is in a stationary state, and the transmission shaft 41 and the mounting roller 42 are also in a stationary state.

[0062] According to the above operating principle, during the rising movement of the valve plate assembly 2, the silt attached to the outside of the valve plate assembly 2 can be cleaned into the water flow by the dredging assembly, and then carried into the downstream by the water flow to ensure the cleanliness of the lifting gate. During the descending process of the valve plate assembly 2, the dredging assembly is in a stationary state to prevent the cleaned silt from being deposited at the bottom of the lifting gate and affecting the diversion effect of the water outlet and the water diversion channel.

[0063] In order to ensure that the installation sleeve 55 can stably transmit power to the installation shaft, a driving bevel gear 551 is fixedly connected to the installation sleeve 55, and a driving bevel gear 412 that meshes with the driving bevel gear 551 is fixedly connected to the top of the transmission shaft 41. When the installation sleeve 55 is running, it can drive the driving bevel gear 551 to run synchronously, thereby driving the driving bevel gear 412 and the transmission shaft 41 to run stably.

[0064] To ensure that the mounting sleeve 55 and the drive shaft 52 can be positioned and stably installed on the assembly frame 1, a mounting bracket 15 is fixedly connected to the top of the assembly frame 1, and the mounting sleeve 55 and the drive shaft 52 are both mounted on the mounting bracket 15 in a relatively rotatable manner.

[0065] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lifting gate for a reservoir in a water conservancy project, characterized in that: The invention comprises an assembly frame (1), a valve plate assembly (2), a lifting assembly, a dredging assembly and a driving assembly which are matched and mounted on the assembly frame (1); the valve plate assembly (2) is slidably mounted in the assembly frame (1) and is lifted and lowered in a vertical direction; the lifting assembly comprises a threaded rod (31) and a threaded seat (32); the threaded rod (31) is fixedly assembled with the top of the valve plate assembly (2); the threaded seat (32) is rotatably mounted on the top of the assembly frame (1) and is screwed to the threaded seat (32); the dredging assembly comprises a transmission shaft (41), a mounting roller (42 ) and cleaning brushes (43) evenly mounted on mounting rollers (42), the mounting rollers (42) are rotatably mounted on both sides of the valve plate assembly (2) and maintained in a horizontal arrangement, the cleaning brushes (43) are kept in contact with the outer surface of the valve plate assembly (2), the same end of the two groups of mounting rollers (42) are fixedly connected with a reversing gear (421) that is kept in meshing, the transmission shaft (41) is kept in power connection with one group of mounting rollers (42); the driving assembly is mounted on the top of the assembly frame (1) and is kept in power connection with the threaded seat (32) and the transmission shaft (41).

2. A hydraulic reservoir lifting gate according to claim 1, characterized in that: Vertically arranged lifting guide rails (12) are fixedly mounted on the inner walls on both sides of the assembly frame (1); the valve plate assembly (2) comprises a supporting pulley (21), an assembly base plate (22), and water baffles (23) fixed on both sides of the assembly base plate (22); both sides of the assembly base plate (22) are provided with assembly grooves (221); the supporting pulley (21) is arranged in the assembly groove (221) and is rotatably mounted on the water baffle (23); the lifting guide rail (12) and the supporting pulley (21) are matched and combined, and the water baffle (23) is kept in contact with the inner wall of the assembly frame (1).

3. A hydraulic reservoir lifting gate according to claim 2, characterized in that: A connecting seat (224) is fixedly connected to the top of the assembly base plate (22), and a vertically arranged spline groove is formed on the connecting seat (224). A spline shaft (311) which is embedded and plugged in the spline groove is fixedly connected to the bottom end of the threaded rod (31), and a limiting ring seat (312) is fixedly connected between the spline shaft (311) and the connecting seat (224). A positioning ring cover (313) which is arranged above the limiting ring seat (312) is sleeved on the outer side of the threaded rod (31), and the positioning ring cover (313) is screwed to the connecting seat (224).

4. A hydraulic reservoir lifting gate for a water conservancy project according to claim 1, characterized in that: The driving assembly comprises a driving motor (51), a driving shaft (52), and a matching combination of a worm wheel (53) and a worm (54); the driving shaft (52) is rotatably mounted on the top of the assembly frame (1) and is fixedly connected to the output shaft of the driving motor (51); and the worm wheel (53) and the worm (54) are fixedly connected to the threaded seat (32) and the driving shaft (52), respectively.

5. A hydraulic reservoir lifting gate for a water conservancy project according to claim 4, characterized in that: The drive assembly further comprises a mounting sleeve (55), an inner ratchet (56), and a pawl (57); the mounting sleeve (55) is rotatably mounted on the top of the assembly frame (1) and is coaxially arranged with the drive shaft (52); the transmission shaft (41) is in power connection with the mounting sleeve (55); the inner ratchet (56) is fixedly mounted inside the mounting sleeve (55); a plurality of groups of pawls (57) distributed in a ring array are rotatably mounted on the periphery of the drive shaft (52); the pawls (57) are meshed with the inner ratchet (56).

6. A hydraulic reservoir lifting gate for a water conservancy project according to claim 5, characterized in that: A driving bevel gear (551) is fixedly connected to the mounting sleeve (55), and a driving bevel gear (412) meshing with the driving bevel gear (551) is fixedly connected to the top end of the transmission shaft (41).

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