An opening and closing device for a water gate of a hydraulic engineering project

By designing a reasonable grinding device and lubricating oil system in the sluice opening and closing device, grinding and oiling maintenance of the wire rope is only carried out when needed, the problems of rusting the wire rope and wear of the grinding device are solved, achieving more efficient maintenance and extended service life.

CN118668653BActive Publication Date: 2025-04-18LIANYUNGANG WATER CONSERVANCY PLANNING & DESIGN INST CO LTD
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Patent Information

Application Number
CN202411163348.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2025-04-18
Estimated Expiration
2044-08-23

AI Technical Summary

Technical Problem

In the existing sluice opening and closing devices, the wire rope is rusted due to long-term moisture, which affects its strength and load-bearing capacity, and requires frequent oil injection and maintenance. The existing grinding device is unreasonable, resulting in frequent wear of the wire brush and consuming manpower and material resources.

Method used

A sluice opening and closing device is designed. By setting a grinding device in the gate room, using a pushing mechanism and lubricating oil system, the wire rope is only polished and oiled to maintain when necessary, to avoid unnecessary wear when maintenance is not required.

Benefits of technology

It effectively avoids unnecessary polishing of wire ropes when maintenance is not required, extends the service life of the grinding device, reduces manpower and material consumption, and ensures the normal operation and maintenance of wire ropes.

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Abstract

The invention discloses an opening and closing device for a sluice gate of a water conservancy project, belonging to the technical field of opening and closing devices for sluice gates, comprising a pier, a gateway is arranged on the inner side of the pier, a gate which can move up and down in the gateway is arranged in the gateway, a platform is fixed on the inner side of the gateway, a fixing groove is arranged on the platform, a grinding device is arranged on the fixing column, a group of fixing rods are arranged in the semi-shell, a semi-annular steel wire brush is arranged on the fixing rod, a through hole is arranged at the center after two semi-annular steel wire brushes are spliced, an oil pump is arranged on the oil tank, one end of the oil pump is connected with an oil inlet pipe, and the other end is provided with an oil extraction pipe which penetrates into the interior of the oil tank, a steel wire rope passes through the grinding device and the inner side of an oil injector, and the invention makes the steel wire rope not be ground by the grinding device when no maintenance is needed, and is ground by the grinding device when maintenance is needed, thereby avoiding that the grinding device always grinds the steel wire rope as the opening and closing device is opened and closed when no maintenance is needed, which not only reduces the service life of the grinding device, but also causes excessive wear of the steel wire rope.
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Description

Technical Field

[0001] The invention relates to the technical field of sluice opening and closing devices, and in particular to an opening and closing device for a sluice of a water conservancy project. Background Art

[0002] A water gate in a hydraulic project is a hydraulic structure used to control water flow, adjust water level and flow rate. It is usually composed of a lock chamber, gates, gate bridges, gate piers, opening and closing equipment, etc. The water gate controls the passage or interception of water flow by raising and lowering the gates, playing a role in flood control, irrigation, shipping, power generation, etc. Sluice gates play an important role in water conservancy projects. They can effectively manage water resources and ensure the safety and normal operation of water conservancy facilities. Since water conservancy project sluice gates are large-scale equipment, the opening and closing devices used often use steel wire ropes to achieve the lifting and lowering of the gates. However, since the steel wire ropes are above the river for a long time and are greatly affected by moisture, the steel wire ropes are easy to rust. Rusting will reduce the strength of the steel wire ropes, affecting their bearing capacity, which may lead to unsafe operation of the sluice gates. Therefore, the steel wire ropes need to be injected with lubricating oil for maintenance at regular intervals. Therefore, an oiler is installed under the gate bridge, and the lubricating oil is injected into the steel wire rope passing through the inside of the oiler through the oiler by pressurizing the oil pump. During each oiling maintenance, the rust on the surface of the steel wire rope needs to be polished off, so a polishing device is also required to polish the steel wire rope. However, the existing polishing device is an integrated design. Regardless of whether the steel wire rope is oiled or not, the polishing device polishes the steel wire rope as the gate is lifted and lowered, causing great wear on the steel wire brush in the polishing device, resulting in frequent replacement of the steel wire brush, which consumes manpower and material resources. Summary of the invention

[0003] In order to solve the technical problems mentioned in the above background technology, the present invention provides an opening and closing device for a water gate of a water conservancy project, and the technical solution adopted is as follows:

[0004] It includes a gate pier, a gateway is arranged inside the gate pier, a gate that can move up and down in the gateway is arranged inside the gateway, a gate bridge is arranged on the gate pier, the gate bridge is also called a working bridge, which is mainly used for workers to repair or maintain the gate bridge, a gate chamber is arranged on the upper side of the gate bridge, the gate chamber is also called an operating room, which is mainly used to place the opening and closing device, and it is also convenient for the staff to operate the opening and closing device, and the gate bridge and the gate chamber are fixed by stone pillars;

[0005] It is characterized in that an opening and closing device is arranged in the gate chamber, a steel wire rope is arranged on the opening and closing device, the steel wire rope runs through the gate chamber and the gate bridge and is connected with the gate, the steel wire rope is reeled in by the opening and closing device to make the gate move up and down in the gate channel by the steel wire rope, a platform is fixed on the inner side of the gate channel, the height of the platform exceeds the highest point where the gate rises, a fixing groove is arranged on the platform, a group of pushing mechanisms are arranged in the fixing groove, the pushing mechanism is fixed in the fixing groove, a fixing column is arranged on the pushing mechanism, a sliding mouth is arranged at the bottom of the fixing column, and a fixing groove is also arranged There is a slide bar, the slide mouth is movably arranged on the slide bar, the pushing mechanism pushes the fixed column, the fixed column slides on the slide bar through the slide mouth, a grinding device is arranged on the fixed column, an oil inlet pipe penetrating the gate bridge is arranged at the rear side of one end of the pushing mechanism, the grinding device is used to grind the outer surface of the wire rope, remove the rust on the surface of the wire rope, and polish it, an oil outlet pipe is arranged on the upper part of the pushing mechanism, an oil injector is fixed on the oil outlet pipe, and one end of the oil outlet pipe is connected with the inside of the oil injector, and the pressurized lubricating oil in the oil outlet pipe enters the inside of the oil injector;

[0006] The grinding device comprises two half shells spliced ​​to each other. When the wire rope is not oiled, the two half shells are in a separated state. A set of fixing rods are arranged in the half shells. A semi-ring wire brush is arranged on the fixing rod. When the two half shells are spliced, the two semi-ring wire brushes are also spliced ​​into a ring wire brush. After the two semi-ring wire brushes are spliced, a through hole is arranged at the center. The wire rope passes through the through hole and the wire rope contacts and rubs with the semi-ring wire brush in the circumferential direction, so that the wire rope is polished by the wire brush.

[0007] An oil tank is provided on the lock bridge, and an oil pump is provided on the oil tank. One end of the oil pump is connected to the oil inlet pipe, and the other end is provided with an oil extraction pipe that runs through the inside of the oil tank. The oil tank is used to store lubricating oil, and the oil pump pressurizes and delivers the lubricating oil to the oil inlet pipe.

[0008] The wire rope passes through the inside of the grinding device and the oiler.

[0009] Furthermore, the opening and closing device includes a reduction motor, a group of bearing seats and a winding roller arranged in the gate chamber, the reduction motor drives the opening and closing device to rotate slowly, a bearing is arranged in the bearing seat, the shaft end of the winding roller is connected to the bearing, so that the shaft end of the winding roller rotates in the bearing, a wire rope is arranged on the winding roller, the winding roller and one of the shaft ends of the winding roller are connected to each other and a gear 1 is arranged at the center of the connected shaft, a reduction motor is arranged on the rear side of the winding roller, and a gear 2 is arranged at the output end of the reduction motor, and gear 1 is meshed with gear 2.

[0010] Furthermore, the pushing mechanism includes a cylinder, an oil inlet pipe is provided on the rear side of one end of the cylinder, the lubricating oil enters the cylinder through the oil inlet pipe, an oil outlet pipe is provided on the upper part of the cylinder, the lubricating oil in the cylinder comes out through the oil outlet pipe and enters the oil injector, a spring is provided in the cylinder, a push rod is provided in the spring, one end of the push rod extends to the outside of the cylinder, the push rod is connected to the fixed column, a piston is provided at one end of the spring, and the piston is connected to the push rod.

[0011] Furthermore, a buckle is provided on the gate, the buckle is welded to the gate, and a steel wire rope is provided on the buckle.

[0012] Furthermore, the gate chamber is provided with a through hole one, and the steel wire rope passes through the through hole one.

[0013] Furthermore, the gate bridge is provided with a second through-hole, through which the steel wire rope passes.

[0014] Furthermore, the platform is provided with a third hole, through which the steel wire rope passes.

[0015] Furthermore, a threaded hole is provided in the fixing rod, a threaded rod is provided on the semi-ring type wire brush, and the semi-ring type wire brush is fixed on the fixing rod by threaded connection between the threaded rod and the threaded hole.

[0016] The present invention has the following advantages:

[0017] When the wire rope does not need oiling and maintenance, the grinding device does not grind the wire rope. When the wire rope needs to be maintained, pressurized lubricating oil is used to enter the pushing mechanism, so that the pushing mechanism pushes the grinding device to splice and clamp the wire rope, and the opening and closing device is used to drive the wire rope to move from bottom to top, so that the wire rope is grinded by the grinding device to remove rust on the wire rope. The present invention prevents the wire rope from being grinded by the grinding device when maintenance is not needed, and grinds and polishes the wire rope by the grinding device when maintenance is needed, thereby avoiding the grinding device grinding the wire rope as the opening and closing device is opened and closed when maintenance is not needed, which not only reduces the service life of the grinding device, but also causes excessive wear of the wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the sluice gate in the closed state of the present invention;

[0019] Figure 2 It is a partial enlarged view of point a of the present invention;

[0020] Figure 3 It is a structural diagram of the platform and the driving mechanism and grinding device on the platform of the present invention;

[0021] Figure 4 This is a structural diagram of the sluice gate in the open state of the present invention;

[0022] Figure 5 For the present invention Figure 4 A local enlarged view of point b;

[0023] Figure 6 For the present invention Figure 5 The main view of

[0024] Figure 7 It is a top view of the grinding device of the present invention when the wire rope is not ground;

[0025] Figure 8 The figure is a top view of the grinding device of the present invention grinding a steel wire rope.

[0026] Figure: 1 pier, 2 gate, 3 gate, 4 gate bridge, 5 gate chamber, 6 stone column, 7 wire rope, 8 platform, 9 fixed groove, 10 fixed column, 11 sliding mouth, 12 sliding bar, 13 oil inlet pipe, 14 oil outlet pipe, 15 oiler, 16 half shell, 17 fixing rod, 18 semi-ring wire brush, 19 through hole, 20 oil tank, 21 oil pump, 22 oil extraction pipe, 23 reduction motor, 24 bearing seat, 25 winding roller, 26 bearing, 27 gear one, 28 gear two, 29 cylinder, 30 spring, 31 push rod, 32 piston, 33 retaining ring, 34 perforation one, 35 perforation two, 36 threaded hole, 37 threaded rod, 38 perforation three. DETAILED DESCRIPTION

[0027] 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.

[0028] The present invention provides an opening and closing device for a water gate of a water conservancy project, such as Figure 1-3 As shown, the technical solution includes a gate pier 1, a gate channel 2 is arranged inside the gate pier 1, a gate 3 which can move up and down in the gate channel 2 is arranged in the gate channel 2, the gate 3 is limited in the gate channel 2, a gate bridge 4 is arranged on the gate pier 1, a gate chamber 5 is arranged on the upper side of the gate bridge 4, and the gate bridge 4 and the gate chamber 5 are fixed by stone pillars 6;

[0029] The gate chamber 5 is provided with an opening and closing device, on which a steel wire rope 7 is provided, which passes through the gate chamber 5 and the gate bridge 4 and is connected to the gate 3, and the gate 3 is driven to move up and down in the gate channel 2 by the steel wire rope 7. The opening and closing device includes a reduction motor 23, a group of bearing seats 24 and a winding roller 25 arranged in the gate chamber 5, a bearing 26 is arranged in the bearing seat 24, and the shaft end of the winding roller 25 is connected to the bearing 26, and the winding roller 25 is provided with a steel wire rope 7, and the winding roller 25 is connected to one of the shaft ends of the winding roller 25 and connected to each other. A gear 27 is provided at the center of the shaft, a reduction motor 23 is provided on the rear side of the winding roller 25, and a gear 2 28 is provided at the output end of the reduction motor 23. The gear 1 27 is meshed with the gear 2 28, and the reduction motor 23 drives the gear 2 28 to rotate, and the gear 2 28 drives the gear 1 27 to mesh and rotate, and the gear 1 27 drives the two winding rollers 25 connected to each other at the shaft ends to rotate in the bearing 26, so that the wire rope 7 is wound on the winding roller 25, and then the wire rope 7 drives the gate 3 to move slowly from bottom to top, and the gate 3 opens.

[0030] like Figure 4-6 As shown, a platform 8 is fixed on the inner side of the gate 2, a fixed groove 9 is arranged on the platform 8, a group of pushing mechanisms are arranged in the fixed groove 9, an oil inlet pipe 13 that runs through the gate bridge 4 is arranged on the rear side of one end of the pushing mechanism, an oil outlet pipe 14 is arranged on the upper part of the pushing mechanism, an oil injector 15 is fixed on the oil outlet pipe 14 and one end of the oil outlet pipe 14 is connected with the inside of the oil injector 15, the pushing mechanism includes a cylinder 29, an oil inlet pipe 13 is arranged on the rear side of one end of the cylinder 29, the oil inlet pipe 13 is a three-way pipe, so that the lubricating oil entering the oil inlet pipe 13 can enter each cylinder 29 respectively, the oil inlet pipe 13 is arranged on the rear side of the cylinder 29 to make the oil inlet 13 pipe be on the rear side of the wire rope 7, an oil outlet pipe 14 is arranged on the upper part of the cylinder 29, it is worth pointing out that the oil inlet pipe 13 and the oil outlet pipe 14 are both made of steel, and a spring 30 is arranged in the cylinder 29. , a push rod 31 is provided in the spring 30, one end of the push rod 31 extends to the outside of the cylinder 29, the push rod 31 is connected to the fixed column 10, and a piston 32 is provided at one end of the spring 30, and the piston 32 is connected to the push rod 31. When no lubricating oil enters the cylinder 29, the piston 32 is located on the left side of the oil outlet pipe 14. When the lubricating oil enters the cylinder 29 through the oil inlet pipe 13, under the action of oil pressure, the piston 32 is pushed by the lubricating oil until the piston 32 is pushed to the right side of the oil outlet pipe 14, so that the lubricating oil can enter the oil outlet pipe 14. At this time, the spring 30 is compressed, and a sliding mouth 11 is provided at the bottom of the fixed column 10, and a sliding bar 12 is also provided in the fixed groove 9. The sliding mouth 11 is movably arranged on the sliding bar 12. The piston 32 drives the push rod 31 to push the fixed column 10 to move, and the sliding mouth 11 on the fixed column 10 moves on the sliding bar 12.

[0031] like Figure 7-8As shown, a grinding device is provided on the fixed column 10, and the grinding device includes two half shells 16 spliced ​​to each other. The fixed column 10 is fixed to the half shell 16, and a group of fixing rods 17 are provided in the half shell 16. The fixing rods 17 are provided with a semi-ring wire brush 18. After the two semi-ring wire brushes 18 are spliced, a through hole 19 is provided at the center. The two half shells 16, the fixing rods 17 and the semi-ring wire brushes 18 on the horizontal line move toward each other as the fixed column 10 pushes the half shells 16, so that the two half shells 16 are spliced ​​into an integral shell, and the two semi-ring wire brushes 18 are spliced ​​into a semi-ring wire brush 18. The ring-type wire brush 18 is spliced ​​into a complete ring-type wire brush, and the two semi-ring-type wire brushes 18 clamp the wire rope 7. The wire rope 7 is located in the through hole 19. The semi-ring-type wire brush 18 grinds the wire rope 7 by moving the wire rope 7 up and down. It is worth pointing out that since the wire rope 7 is used to hang the gate 3 and has high strength and load-bearing capacity, a wire brush is used to lightly grind it to avoid damaging its muscles and bones, grind off the rust on the surface of the wire rope 7, and polish it so that when the wire rope 7 is oiled in the oiler 15, the lubricating oil can adhere to the surface of the wire rope 7.

[0032] An oil tank 20 is provided on the lock bridge 4, and an oil pump 21 is provided on the oil tank 20. One end of the oil pump 21 is connected to the oil inlet pipe 13, and the other end is provided with an oil extraction pipe 22 that penetrates into the oil tank 20.

[0033] The steel wire rope 7 passes through the inner side of the grinding device and the oiler 15 .

[0034] The gate 3 is provided with a buckle 33 , on which a steel wire rope 7 is provided. The steel wire rope 7 is fixed to the buckle 33 by a buckle, so that the steel wire rope 7 can be easily removed from the gate 3 .

[0035] The lock chamber 5 is provided with a first through-hole 34 , through which the steel wire rope 7 passes; the lock bridge 4 is provided with a second through-hole 35 , through which the steel wire rope 7 passes; and the platform is provided with a third through-hole 38 , through which the steel wire rope 7 passes.

[0036] like Figure 3 As shown, a threaded hole 36 is provided in the fixing rod 17, and a threaded rod 37 is provided on the semi-ring type wire brush 18. The semi-ring type wire brush 18 is fixed to the fixing rod 17 by threaded connection between the threaded rod 37 and the threaded hole 36. When the semi-ring type wire brush 18 is worn to a certain extent and needs to be replaced, the threaded rod 37 only needs to be unscrewed from the threaded hole 36 to remove the semi-ring type wire brush 18 from the fixing rod 17.

[0037] The working principle of the present invention is as follows:

[0038] When the steel wire rope 7 needs to be oiled and maintained, the gate is opened to release water. At this time, the reduction motor 23 is started, and the reduction motor 23 drives the gear 2 28 to rotate slowly, and the gear 2 28 drives the gear 1 27 to rotate, and the gear 1 27 drives the winding roller 25 to rotate in the bearing 26, so that the steel wire rope 7 is slowly wound on the winding roller 25, and the steel wire rope 7 passes through the perforation 38, the perforation 2 35 and the perforation 1 34, driving the gate 3 to rise slowly from bottom to top in the gate 2. At the same time, the oil pump 21 is opened, and the lubricating oil in the oil tank 20 enters the oil inlet pipe 13 through the oil extraction pipe 22, and the lubricating oil in the oil inlet pipe 13 enters the cylinder 29. Under the action of the oil pressure, the piston 32 is pushed to the position of the oil outlet pipe 14 by the lubricating oil until the lubricating oil in the cylinder 29 enters the oil outlet pipe 14, and the spring 30 is compressed. In this process, the piston 32 pushes the push rod 3 1, the push rod 31 pushes the fixed column 10 to move, the sliding mouth 11 on the fixed column 10 slides on the sliding bar 12, and the fixed column 10 pushes the half shell 16, so that a group of half shells 16, the fixed rod 17 and the semi-annular wire brush 18 on the horizontal line move toward each other until the two half shells 16 are spliced ​​into a complete shell, and the two semi-annular wire brushes 18 are spliced ​​into a complete annular wire brush. The two semi-annular wire brushes 18 clamp the wire rope 7, and the wire rope 7 is located in the through hole 19. Since the wire rope 7 moves from bottom to top, the wire rope 7 is polished by the two semi-annular wire brushes 18 to remove the rust on the surface of the wire rope 7. The wire rope 7 continues to move upward and enters the oiler 15. At this time, the lubricating oil in the oil outlet pipe 14 enters the oiler 15, so that the lubricating oil in the oiler 15 adheres to the wire rope 7, and the oiling maintenance of the wire rope 7 is completed.

[0039] The present invention is simple to operate, convenient to use, and suitable for comprehensive promotion and application. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An opening and closing device for a water gate of a water conservancy project, comprising a gate pier (1), a gate channel (2) being arranged inside the gate pier (1), a gate (3) being arranged inside the gate channel (2) and being movable up and down inside the gate channel (2), a gate bridge (4) being arranged on the gate pier (1), a gate chamber (5) being arranged on the upper side of the gate bridge (4), and the gate bridge (4) and the gate chamber (5) being fixed by stone pillars (6); It is characterized in that An opening and closing device is arranged in the gate chamber (5), and a steel wire rope (7) is arranged on the opening and closing device. The steel wire rope (7) passes through the gate chamber (5) and the gate bridge (4) and is connected to the gate (3). A platform (8) is fixed on the inner side of the gate channel (2), and a fixing groove (9) is arranged on the platform (8). A group of pushing mechanisms are arranged in the fixing groove (9), and a fixing column (10) is arranged on the pushing mechanism. A sliding mouth (11) is arranged at the bottom of the fixing column (10). A sliding bar (12) is also arranged in the fixing groove (9), and the sliding mouth (11) is movably arranged on the sliding bar (12). A grinding device is arranged on the fixing column (10), and an oil inlet pipe (13) passing through the gate bridge (4) is arranged at the rear side of one end of the pushing mechanism. An oil outlet pipe (14) is arranged on the upper part of the pushing mechanism, and an oil injector (15) is fixed on the oil outlet pipe (14), and one end of the oil outlet pipe (14) is connected to the inside of the oil injector (15); The grinding device comprises two half shells (16) spliced ​​to each other, a set of fixing rods (17) are arranged in the half shells (16), a semi-ring-shaped steel wire brush (18) is arranged on the fixing rod (17), and a through hole (19) is arranged at the center of the two semi-ring-shaped steel wire brushes (18) after being spliced ​​together; An oil tank (20) is provided on the gate bridge (4), and an oil pump (21) is provided on the oil tank (20); one end of the oil pump (21) is connected to the oil inlet pipe (13), and the other end of the oil pump (21) is provided with an oil extraction pipe (22) penetrating into the oil tank (20); The wire rope (7) passes through the inner side of the grinding device and the oiler (15); The pushing mechanism comprises a cylinder (29), an oil inlet pipe (13) is arranged at the rear side of one end of the cylinder (29), an oil outlet pipe (14) is arranged at the upper part of the cylinder (29), a spring (30) is arranged in the cylinder (29), a pushing rod (31) is arranged in the spring (30), one end of the pushing rod (31) extends to the outside of the cylinder (29), the pushing rod (31) is connected to the fixed column (10), and a piston (32) is arranged at one end of the spring (30), and the piston (32) is connected to the pushing rod (31).

2. The opening and closing device of a water conservancy project sluice according to claim 1, characterized in that: The opening and closing device comprises a reduction motor (23) arranged in the gate chamber (5), a group of bearing seats (24) and a winding roller (25), wherein a bearing (26) is arranged in the bearing seat (24), an axial end of the winding roller (25) is connected to the bearing (26), a steel wire rope (7) is arranged on the winding roller (25), one axial end of the winding roller (25) is connected to each other, and a gear 1 (27) is arranged at the center of the connected shaft, a reduction motor (23) is arranged at the rear side of the winding roller (25), and a gear 2 (28) is arranged at the output end of the reduction motor (23), and the gear 1 (27) is meshed with the gear 2 (28).

3. The opening and closing device of a water conservancy project sluice according to claim 1, characterized in that: The gate (3) is provided with a buckle (33), and a steel wire rope (7) is provided on the buckle (33).

4. The opening and closing device of a water conservancy project sluice according to claim 1, characterized in that: The gate chamber (5) is provided with a through hole (34), and the steel wire rope (7) passes through the through hole (34).

5. The opening and closing device of a water conservancy project sluice according to claim 1, characterized in that: The gate bridge (4) is provided with a second through-hole (35), through which the steel wire rope (7) passes.

6. The opening and closing device of a water conservancy project sluice according to claim 1, characterized in that: The platform is provided with a third perforation (38), and the steel wire rope (7) passes through the third perforation (38).

7. The opening and closing device of a water conservancy project sluice according to claim 1, characterized in that: The fixing rod (17) is provided with a threaded hole (36), the semi-ring-shaped wire brush (18) is provided with a threaded rod (37), and the semi-ring-shaped wire brush (18) is fixed to the fixing rod (17) by threaded connection between the threaded rod (37) and the threaded hole (36).

Citation Information

Patent Citations

  • Water conservancy gate capable of achieving automatic maintenance in opening and closing process

    CN112681243A

  • Steel wire rope lubricating device capable of uniformly oiling

    CN221196949U