Water conservancy sewage fence with lifting function

Abstract

The utility model discloses a water conservancy sewage fence with a lifting function, and relates to the technical field of water conservancy and hydropower engineering, the water conservancy sewage fence comprises a main sewage fence, the two sides of the main sewage fence are fixedly connected with sliding rails respectively, one side of each sliding rail is provided with a groove, an auxiliary sewage fence is slidably connected in the groove, and the auxiliary sewage fence is provided with a lifting device. The center of the main sewage fence is rotatably connected with a lead screw, the top end of the sliding rail is fixedly connected with a transverse bar, the top end of the transverse bar is fixedly connected with a lifting device, the auxiliary sewage fence comprises an auxiliary sewage fence frame, the center of the auxiliary sewage fence frame is fixedly connected with a screw sleeve, and the screw sleeve is in threaded connection with the lead screw. A knife rake is fixedly connected to the bottom of the auxiliary sewage fence frame, and pulley assemblies are fixedly connected to the four corners of the auxiliary sewage fence frame. According to the water conservancy sewage fence with the lifting function, the sewage fence has the height adjusting function, and the problem that sundries directly enter water conservancy facilities such as a hydropower station and a pump station along with rising of the water level is solved.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy and hydropower engineering technology, specifically to a water conservancy waste rack with lifting function. Background Technology

[0002] Sludge racks, as important facilities in the field of water conservancy engineering, are installed at the intakes of hydraulic structures such as hydropower stations, pumping stations, and sluice gates to intercept debris in the water flow, ensuring the safe and stable operation of water conservancy facilities. In hydropower stations, they prevent debris from entering the turbines, avoiding blade wear and blockage, ensuring stable power generation efficiency, and preventing shutdowns caused by debris. In pumping stations, they prevent pumps from becoming entangled or blocked, ensuring normal pumping and drainage functions and improving the reliability of pumping station operation. In irrigation systems, sludge racks intercept debris, preventing blockage of irrigation channels and ensuring a normal supply of irrigation water for farmland. Although seemingly ordinary, sludge racks play an irreplaceable role in water conservancy engineering systems due to their debris-intercepting function, ensuring the safe and efficient operation of all aspects of water conservancy projects.

[0003] Traditional trash racks have a fixed height and cannot be adjusted to change with water levels. When the water level exceeds the height of the trash rack, a large amount of debris will overflow and enter water conservancy facilities such as hydropower stations and pumping stations. This debris can not only clog equipment and affect normal operation, but may even cause equipment malfunctions. Utility Model Content

[0004] This utility model provides a hydraulic debris barrier with lifting function. One purpose is to enable the debris barrier to have height adjustment function, so as to solve the problem of debris directly entering water conservancy facilities such as hydropower stations and pumping stations as the water level rises. Another purpose is to solve the problem of debris accumulating over a long period of time and clogging the water inlet, so as to achieve normal water flow.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A hydraulic cleaning fence with lifting function includes a main cleaning fence, characterized in that: slide rails are fixedly connected to both sides of the main cleaning fence, a groove is provided on one side of each slide rail, a secondary cleaning fence is slidably connected in the groove, a lead screw is rotatably connected to the center of the main cleaning fence, a crossbar is fixedly connected to the top of the slide rail, and a lifting device is fixedly connected to the top of the crossbar.

[0007] Preferably, the secondary bar includes a secondary bar frame, a threaded sleeve is fixedly connected to the center of the secondary bar frame, the threaded sleeve is threadedly connected to a lead screw, a rake is fixedly connected to the bottom of the secondary bar frame, pulley assemblies are fixedly connected to the four corners of the secondary bar frame, a float switch is fixedly connected to the rear of the two pulley assemblies located at the top of the secondary bar frame, and several buffer pads are fixedly connected to both ends of the secondary bar frame.

[0008] Preferably, the pulley assembly includes a housing, a bracket is slidably connected to one side inside the housing, a roller is rotatably connected to the top of the bracket, and a top spring is provided on the other side inside the housing, the top spring being located between the bracket and the housing;

[0009] Preferably, the water float switch includes a housing, a water float is slidably connected inside the housing, a top block is fixedly connected to the top surface of the water float, soft springs are fixedly connected to both sides of the top block, and the soft springs are located between the housing and the water float. A contact switch is fixedly connected to the housing at a position opposite to the top block.

[0010] Preferably, the lifting device includes a housing, a base is fixedly connected to the bottom surface of the housing, a through hole is provided on one side of the base, a lead screw is rotatably connected to the center of the through hole, a worm gear is fixedly connected to the top of the lead screw, a worm is meshed with one side of the worm gear, a first bevel gear is fixedly connected to one end of the worm, a second bevel gear is meshed above the first bevel gear, a motor is provided above the second bevel gear, the motor is fixedly connected to the housing, and the second bevel gear is fixedly connected to the output end of the motor.

[0011] Preferably, one end of the first bevel gear is fixedly connected to a brake disc, the center of the brake disc has an interface, a handwheel is movably connected to the interface, brake pads are slidably connected to both sides of the brake disc, one end of each brake pad is rotatably connected to the base, and the other end of each brake pad is provided with a push rod. A through hole is opened at the relative position of one end of the brake pad and one end of the push rod on one side, the diameter of the through hole is larger than the diameter of the push rod. The other side of the brake pad is fixedly connected to the other end of the push rod. One end of the push rod is threaded with a nut, and this end extends through the through hole to the outside of the brake pad. A steel spring is provided between the nut and the brake pad. An electric cylinder is provided above the push rod, and both ends of the electric cylinder are rotatably connected to the top ends of the two brake pads.

[0012] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0013] 1. This utility model provides a hydraulic debris barrier with lifting function. By distinguishing between the main and auxiliary debris barriers and adding a lifting device, the height of the auxiliary debris barrier can be adjusted as the water level rises and falls, thus preventing debris from entering the reservoir and damaging the hydraulic facilities when the water level is higher than the debris barrier.

[0014] 2. This utility model provides a hydraulic waste rack with lifting function. A rake is set at the bottom of the secondary waste rack, which can clean the debris on the main waste rack during the raising and lowering process, preventing the water inlet from being blocked due to excessive debris. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a hydraulic barrier with lifting function according to the present invention.

[0016] Figure 2 This is a schematic diagram of the back structure of a hydraulic barrier with lifting function according to this utility model;

[0017] Figure 3 This is a schematic diagram of the secondary fence structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the auxiliary fence pulley assembly of this utility model;

[0019] Figure 5 This is a schematic diagram of the sub-bar float switch structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the lifting device structure of this utility model.

[0021] In the diagram: 1. Main waste rack; 2. Slide rail; 3. Secondary waste rack; 301. Secondary waste frame; 302. Threaded sleeve; 303. Rake; 304. Pulley assembly; 3041. Housing; 3042. Bracket; 3043. Roller; 3044. Top spring; 305. Float switch; 3051. Housing; 3052. Float; 3053. Top block; 3054. Contact switch; 3055. 306. Soft spring; 4. Buffer pad; 5. Lead screw; 6. Lifting device; 501. Housing; 502. Base; 503. Worm gear; 504. Worm; 505. First bevel gear; 506. Second bevel gear; 507. Motor; 508. Brake disc; 509. Brake pad; 510. Push rod; 511. Lead nut; 512. Steel spring; 513. Electric cylinder; 514. Handwheel; 6. Crossbar. Detailed Implementation

[0022] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0023] like Figure 1-2As shown, this utility model provides a hydraulic waste rack with lifting function, including a main waste rack 1. Slide rails 2 are fixedly connected to both sides of the main waste rack 1. A groove is provided on one side of each slide rail 2, and a secondary waste rack 3 is slidably connected within the groove. A lead screw 4 is rotatably connected to the center of the main waste rack 1, allowing the secondary waste rack 3 to move up and down within the groove under the action of the lead screw 4. A crossbar 6 is fixedly connected to the top of the slide rail 2, and a lifting device 5 is fixedly connected to the top of the crossbar 6. The lifting device 5 drives the lead screw 4 to move the secondary waste rack 3 up and down.

[0024] like Figure 3 As shown, the secondary bar screen 3 includes a secondary bar screen frame 301. A threaded sleeve 302 is fixedly connected to the center of the secondary bar screen frame 301. The threaded sleeve 302 is threadedly connected to the lead screw 4. A rake 303 is fixedly connected to the bottom of the secondary bar screen frame 301. The up-and-down movement of the secondary bar screen 3 drives the up-and-down movement of the rake 303, which can clean and retrieve debris on the main bar screen 1. Pulley assemblies 304 are fixedly connected to the four corners of the secondary bar screen frame 301. A float switch 305 is fixedly connected to the rear of the two pulley assemblies 304 located at the top of the secondary bar screen frame 301. Several buffer pads 306 are fixedly connected to both ends of the secondary bar screen frame 301. The buffer pads 306 prevent hard contact between the secondary bar screen 3 and the main bar screen 1 and the crossbar 6, thereby protecting the device.

[0025] like Figure 4 As shown, the pulley assembly 304 includes a housing 3041. A bracket 3042 is slidably connected to one side of the housing 3041. A roller 3043 is rotatably connected to the top of the bracket 3042. A top spring 3044 is provided on the other side of the housing 3041. The top spring 3044 is located between the bracket 3042 and the housing 3041. The thrust applied by the top spring 3044 to the bracket 3042 causes the roller 3043 to fit tightly in the groove, thereby reducing the impact of water flow on the auxiliary filter screen and thus enhancing the service life of the overall structure.

[0026] like Figure 5 As shown, the water float switch 305 includes a housing 3051, a water float 3052 slidably connected inside the housing 3051, a top block 3053 fixedly connected to the top surface of the water float 3052, and soft springs 3055 fixedly connected to both sides of the top block 3053, with the soft springs 3055 located between the housing 3051 and the water float 3052. A contact switch 3054 is fixedly connected to the housing 3051 and the top block 3053 at opposite positions. When the water level rises, the water float 3052 will drive the top block 3053 to rise, thereby touching the contact switch 3054, thus transmitting a signal upward to raise the auxiliary filter screen 3.

[0027] like Figure 6 As shown, the lifting device 5 includes a housing 501. A door is provided on one side of the housing 501 for easy maintenance of the interior of the lifting device 5. A control box is provided on the other side of the housing 501 for easy control of the lifting device. A base 502 is fixedly connected to the bottom surface of the housing 501. A through hole is provided on one side of the base 502. A lead screw 4 is rotatably connected to the center of the through hole. A worm gear 503 is fixedly connected to the top of the lead screw 4. A worm 504 is meshed on one side of the worm gear 503. A first bevel gear 505 is fixedly connected to one end of the worm 504. A second bevel gear 506 is meshed above the first bevel gear 505. A motor 507 is located above the second bevel gear 506. The motor 507 is fixedly connected to the housing 501, and the second bevel gear 506 is fixedly connected to the output end of the motor 507. The rotation of the motor 507 drives the bevel gear to rotate, which in turn drives the worm gear 504 to rotate the worm wheel 503, causing the lead screw 4 to rotate, thereby driving the auxiliary fence 3 to rise and fall. One end of the first bevel gear 505 is fixedly connected to a brake disc 508. The center of the brake disc 508 has an interface, and a handwheel 514 is movably connected to the interface. When the power system fails, the handwheel 514 can drive the lead screw 4 to rotate, thereby raising and lowering the auxiliary fence 3. Brake pads 509 are slidably connected to both sides of the brake disc 508. One end of the brake pad 509... All are rotatably connected to the base 502. A push rod 510 is provided at the other end of the brake pad 509. A through hole is formed at the opposite position of one end of the brake pad 509 and the push rod 510 on one side. The diameter of the through hole is larger than the diameter of the push rod 510. The other end of the brake pad 509 and the push rod 510 are fixedly connected. A threaded nut 511 is threaded to one end of the push rod 510, and this end extends through the through hole to the outside of the brake pad 509. A steel spring 512 is provided between the threaded nut 511 and the brake pad 509. An electric cylinder 513 is provided above the push rod 510. Both ends of the electric cylinder 513 are rotatably connected to the tops of the two brake pads 509. The threaded nut 511 can adjust the brake pressure by pressing the steel spring 512. The braking effect of the moving pad 509 on the brake disc 508 can also be released by adjusting the screw cap 511 in the event of a power system failure. An electric cylinder 513 is provided above the push rod 510. Both ends of the electric cylinder 513 are rotatably connected to the tops of the two brake pads 509. When the auxiliary fence 3 rises and falls, the electric cylinder 513 pushes the brake pads 509, thereby releasing the brake disc 508 and allowing the auxiliary fence 3 to work smoothly. When the auxiliary fence 3 is stationary, the electric cylinder 513 stops working, and the brake pads 509 will firmly lock the brake disc under the action of the push rod 510 and the steel spring 512, preventing the auxiliary fence 3 from suddenly rising and falling due to equipment failure and causing property damage.

[0028] The working principle of this lifting and lowering hydraulic barrier will be explained in detail below.

[0029] like Figure 1-6 As shown, when the water level is higher than the secondary screen 3, the float 3052 will rise due to buoyancy, causing the top block 3053 to touch the contact switch 3054, which in turn sends a signal to the lifting device 5, causing the motor 507 to rotate, driving the bevel gear, which in turn drives the worm gear 504 to rotate the worm wheel 503, thereby causing the lead screw 4 to lift the secondary screen 3 to intercept debris. In case of power system failure, the screw cap 511 can be loosened, and the handwheel 514 can be used instead of the motor 507 to make the lead screw 4 lift and lower the secondary screen 3. When there is too much debris at the screen, the secondary screen 3 can be lifted, driving the rake 303 to lift and clean and retrieve the debris from the main screen 1. The rake is then cleaned manually. After cleaning, the secondary screen 3 is lowered to a suitable position to continue intercepting debris in the water.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A hydraulic waste rack with lifting function, comprising a main waste rack (1), characterized in that: The main fence (1) is fixedly connected to slide rails (2) on both sides. Each slide rail (2) has a groove on one side. A secondary fence (3) is slidably connected in the groove. A lead screw (4) is rotatably connected to the center of the main fence (1). A crossbar (6) is fixedly connected to the top of the slide rail (2). A lifting device (5) is fixedly connected to the top of the crossbar (6).

2. A hydraulic debris rack with lifting function according to claim 1, characterized in that: The secondary sludge rack (3) includes a secondary sludge frame (301), a threaded sleeve (302) is fixedly connected to the center of the secondary sludge frame (301), the threaded sleeve (302) is threadedly connected to the lead screw (4), a rake (303) is fixedly connected to the bottom of the secondary sludge frame (301), pulley assemblies (304) are fixedly connected to the four corners of the secondary sludge frame (301), a float switch (305) is fixedly connected behind the two pulley assemblies (304) at the top of the secondary sludge frame (301), and several buffer pads (306) are fixedly connected to both ends of the secondary sludge frame (301).

3. A hydraulic debris rack with lifting function according to claim 2, characterized in that: The pulley assembly (304) includes a housing (3041), a bracket (3042) is slidably connected to one side inside the housing (3041), a roller (3043) is rotatably connected to the top of the bracket (3042), and a top spring (3044) is provided on the other side inside the housing (3041), the top spring (3044) being located between the bracket (3042) and the housing (3041).

4. A hydraulic debris rack with lifting function according to claim 2, characterized in that: The water float switch (305) includes a housing (3051), a water float (3052) is slidably connected inside the housing (3051), a top block (3053) is fixedly connected to the top surface of the water float (3052), and soft springs (3055) are fixedly connected to both sides of the top block (3053), with the soft springs (3055) located between the housing (3051) and the water float (3052). A contact switch (3054) is fixedly connected to the housing (3051) and the top block (3053) at opposite positions.

5. A hydraulic waste rack with lifting function according to claim 1, characterized in that: The lifting device (5) includes a housing (501), a base (502) is fixedly connected to the bottom surface of the housing (501), a through hole is provided on one side of the base (502), a lead screw (4) is rotatably connected to the center of the through hole, a worm gear (503) is fixedly connected to the top of the lead screw (4), a worm (504) is meshed on one side of the worm gear (503), a first bevel gear (505) is fixedly connected to one end of the worm gear (504), a second bevel gear (506) is meshed above the first bevel gear (505), a motor (507) is provided above the second bevel gear (506), the motor (507) is fixedly connected to the housing (501), and the second bevel gear (506) is fixedly connected to the output end of the motor (507).

6. A hydraulic waste rack with lifting function according to claim 5, characterized in that: One end of the first bevel gear (505) is fixedly connected to a brake disc (508). An interface is provided at the center of the brake disc (508), and a handwheel (514) is movably connected to the interface. Brake pads (509) are slidably connected to both sides of the brake disc (508). One end of each brake pad (509) is rotatably connected to the base (502). A push rod (510) is provided at the other end of each brake pad (509), and a through hole is formed at the relative position of one end of the brake pad (509) and the push rod (510). The diameter of the rod is larger than that of the push rod (510). The brake pad (509) on the other side is fixedly connected to the other end of the push rod (510). One end of the push rod (510) is threaded with a nut (511), and this end extends through the through hole to the outside of the brake pad (509). A steel spring (512) is provided between the nut (511) and the brake pad (509). An electric cylinder (513) is provided above the push rod (510). Both ends of the electric cylinder (513) are rotatably connected to the top ends of the two brake pads (509).

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