A trash rack cleaning device for hydraulic engineering

By designing an electric cleaning brush and cleaning plate to work in tandem, the problem of trash rack clogging was solved, achieving thorough cleaning of the trash rack and improving cleaning efficiency and effectiveness.

CN224294053UActive Publication Date: 2026-05-29贾明慧

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
贾明慧
Filing Date
2025-03-21
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In existing technologies, trash racks are prone to clogging by debris during use, resulting in incomplete cleaning and affecting the cleaning effect.

Method used

A trash rack cleaning device including a cleaning mechanism was designed. Through the cooperation of an electric cleaning brush and multiple cleaning plates, the cleaning plates move synchronously upward along the channel. The cleaning plates and the electric cleaning brush work together, and the debris on the cleaning plates slides down towards the brush. The cleaning rod scrapes off the adhering material, thereby achieving a thorough cleaning of the trash rack.

Benefits of technology

It improves the cleaning effect of trash racks, ensures that debris inside and outside the passage is thoroughly removed, and enhances the cleaning efficiency and effectiveness of trash racks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hydraulic engineering, and concretely relates to a trash rack cleaning device for hydraulic engineering, which comprises: a trash rack frame for installing the trash rack; by setting multiple cleaning plates in the channel of the trash rack, driving the upward movement of the electric cleaning brush for cleaning the trash rack, and simultaneously moving the multiple cleaning plates upward along the channel of the trash rack, the synchronous cleaning of the blocked sundries in the channel of the trash rack is facilitated, the cleaned sundries are guided toward the direction of the electric cleaning brush, so that the sundries are cleaned by the electric cleaning brush, and under the action of the driving assembly, the driving connecting plate drives the reciprocating movement of the multiple moving rods, so that the cleaning plate reciprocates, the sundries on the cleaning plate better slide toward the direction of the electric cleaning brush, the sundries are prevented from remaining on the cleaning plate, and under the cooperation of the electric cleaning brush and the multiple cleaning plates, the trash rack is completely cleaned, and the cleaning effect of the trash rack is improved.
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Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a cleaning device for trash racks used in water conservancy projects. Background Technology

[0002] A trash rack is a frame structure used to block debris such as aquatic plants, driftwood, plastic bags, and wood chips carried by water flow. It is usually installed before the water inlet. Over time, trash racks can become clogged due to the trapped debris, so they need to be cleaned to ensure their proper functioning.

[0003] A search revealed that the Chinese patent "A Cleaning Device for Trash Racks in Water Conservancy Projects" (authorization announcement number CN221741200U) involves setting up a cleaning device. A motor drives a screw to rotate, causing a displacement block to move, which in turn moves a connecting frame. Simultaneously, a driver rotates a cleaning brush. The movement of the connecting frame causes the cleaning brush to move as well, thus cleaning the trash rack. This eliminates the need to remove the trash rack from the equipment for cleaning, resulting in high cleaning efficiency. It also allows for scheduled cleaning, saving time and effort, and improving the trash rack's ability to intercept impurities, preventing excessive impurities from affecting water flow.

[0004] Although the aforementioned application can clean the trash rack, some of the trash can gets stuck in its channels when it intercepts debris in the water flow. The cleaning brush can only clean the debris on the surface of the trash rack, resulting in incomplete cleaning and affecting the cleaning effect.

[0005] Therefore, a trash rack cleaning device for water conservancy projects is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a cleaning device for trash racks in water conservancy projects to solve the above-mentioned problems, thereby improving the problem of incomplete cleaning of trash racks and affecting the cleaning effect of trash racks.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a cleaning device for a trash rack in water conservancy projects, comprising: a trash rack frame for installing the trash rack; a cleaning mechanism, the cleaning mechanism including a movable frame slidably connected to the front end of the trash rack frame, an electric cleaning brush rotatably connected to the inner wall of the movable frame, an installation rod slidably connected to the inner wall of the trash rack frame, a plurality of evenly distributed installation plates fixedly connected to the top end of the installation rod, a cleaning plate hinged to one side of the installation plate, a slider slidably connected to the bottom end of the cleaning plate, a moving rod hinged to the bottom end of the slider, the other ends of the plurality of moving rods passing through corresponding installation plates and fixedly connected to connecting plates, and a driving assembly provided at the top end of the trash rack frame.

[0008] Preferably, the drive assembly includes a first motor fixedly connected to the top of the trash rack frame, a lead screw rotatably connected to the inner wall of the trash rack frame, the top end of the lead screw penetrating through the trash rack frame and fixedly connected to the output shaft of the first motor, a movable block threadedly connected to the surface of the lead screw, one side of the movable block penetrating through the trash rack frame and fixedly connected to one side of the movable frame, and one end of the mounting rod penetrating through the trash rack frame and fixedly connected to the surface of the movable block. This facilitates driving multiple cleaning plates to move synchronously upwards along the channel of the trash rack with the electric cleaning brush to achieve cleaning operations, ensuring consistency in the operation of the device.

[0009] Preferably, the drive assembly further includes a reciprocating screw rotatably connected to the top of the trash rack frame. One end of the reciprocating screw and the surface of the output shaft of the first motor are both fixedly connected to bevel gears, and the two bevel gears mesh together. A vertical rod is mounted on the surface of the reciprocating screw, and a slide rod is slidably connected to one side of the vertical rod. The other end of the slide rod is fixedly connected to the other side of the connecting plate. This facilitates the drive slide rod to move multiple moving rods reciprocally through the connecting plate, causing the cleaning plate to swing back and forth, thereby allowing debris on the cleaning plate to slide more effectively towards the electric cleaning brush.

[0010] Preferably, two cleaning rods are fixedly connected to one side of the mounting plate, and the vertical cross-section of the cleaning rods is a right-angled triangle. This facilitates the scraping off of dirt and other adhering substances from the surface of the trash rack, enhancing the cleaning effect.

[0011] Preferably, a baffle is fixedly connected to the upper end of one side of the mounting plate, and the baffle is inclined. This helps to protect the hinge joint of the cleaning plate.

[0012] Preferably, the top of the mounting plate forms an angle with the horizontal plane. This helps to reduce the resistance when the mounting plate moves upward.

[0013] Preferably, the bottom end of the cleaning plate is provided with a groove, and the surface of the slider is slidably connected to the inner wall of the groove. This ensures the stability of the cleaning plate when the moving rod drives it to swing back and forth.

[0014] The beneficial effects of this utility model are:

[0015] 1. The cleaning mechanism incorporates multiple cleaning plates positioned within the channels of the trash rack. Simultaneously, an electric cleaning brush moves upwards to clean the trash rack, causing the cleaning plates to move synchronously upwards along the channels. This facilitates the simultaneous removal of debris clogging the trash rack channels and guides the debris towards the electric cleaning brush. Furthermore, the drive assembly drives a connecting plate, which in turn moves multiple moving rods back and forth, causing the cleaning plates to swing back and forth. This allows debris on the cleaning plates to slide more effectively towards the electric cleaning brush, preventing it from remaining on the plates and ensuring a thorough cleaning of the trash rack channels. The combined action of the electric cleaning brush and the multiple cleaning plates ensures a complete cleaning of the trash rack, improving its cleaning efficiency.

[0016] 2. The cleaning rod is designed so that while the cleaning plate cleans the trash rack channel, the cleaning rod moves upward in sync with the surface of the trash rack. This helps to scrape off dirt and other adhering substances from the surface of the trash rack, thus enhancing the cleaning effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cleaning mechanism structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the movable block, the movable frame, and the mounting rod of this utility model;

[0020] Figure 4 This is a schematic diagram of the cleaning plate installation structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the drive component structure of this utility model.

[0022] In the diagram: 100, trash rack frame; 200, cleaning mechanism; 210, moving frame; 211, electric cleaning brush; 220, mounting rod; 230, mounting plate; 231, cleaning rod; 232, baffle; 240, cleaning plate; 250, slider; 260, moving rod; 270, connecting plate; 280, drive assembly; 281, first motor; 282, lead screw; 283, moving block; 284, reciprocating lead screw; 285, bevel gear; 286, vertical rod; 287, sliding rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In practical implementation: such as Figure 1-5 As shown, a cleaning device for a trash rack in a water conservancy project includes: a trash rack frame 100 for installing the trash rack; a cleaning mechanism 200, the cleaning mechanism 200 including a movable frame 210 slidably connected to the front end of the trash rack frame 100, an electric cleaning brush 211 rotatably connected to the inner wall of the movable frame 210, an installation rod 220 slidably connected to the inner wall of the trash rack frame 100, a plurality of evenly distributed installation plates 230 fixedly connected to the top end of the installation rod 220, a cleaning plate 240 hinged to one side of the installation plate 230, a slider 250 slidably connected to the bottom end of the cleaning plate 240, a moving rod 260 hinged to the bottom end of the slider 250, and the other ends of the plurality of moving rods 260 all pass through the corresponding installation plate 230 and are fixedly connected to a connecting plate 270, and a drive assembly 280 is provided at the top end of the trash rack frame 100. The surface of the moving rod 260 is slidably connected to the inner wall of the installation plate 230.

[0025] The trash rack is fixed to the inside of the trash rack frame 100. After the trash rack is installed and the trash rack frame 100 is installed, during use, the electric cleaning brush 211 is located in the water inlet direction, and multiple mounting plates 230 are located in the water outlet direction. The number and position of the multiple mounting plates 230 and multiple cleaning plates 240 correspond one-to-one with the multiple channels of the trash rack. The cleaning plates 240 are set at an angle and located in the corresponding channel. The two sides of the cleaning plates 240 are in contact with the surface of the trash rack. It should be noted that the crossbar of the trash rack is installed near the front end of the trash rack. Therefore, the cleaning plates 240 do not affect the crossbar during movement.

[0026] A second motor is fixedly connected to one side of the inner wall of the movable frame 210. The output shaft of the second motor is fixedly connected to one end of the electric cleaning brush 211. When cleaning the trash rack, the second motor is started by the controller, and the output shaft of the second motor will drive the electric cleaning brush 211 to rotate to achieve the cleaning operation.

[0027] A collection frame is bolted to the bottom of the movable frame 210. The top of the collection frame is connected to the bottom of the movable frame 210. A through hole is provided at the bottom of the collection frame to drain the water inside the collection frame. Multiple evenly distributed cleaning blocks are fixedly connected to the top of the collection frame. During the cleaning process of the electric cleaning brush 211, the cleaning blocks will clean the debris on the electric cleaning brush 211. The cleaned debris falls into the collection frame.

[0028] like Figure 2 , Figure 3 and Figure 4 As shown, the drive assembly 280 includes a first motor 281 fixedly connected to the top of the trash rack 100, a lead screw 282 rotatably connected to the inner wall of the trash rack 100, the top end of the lead screw 282 passing through the trash rack 100 and fixedly connected to the output shaft of the first motor 281, a moving block 283 threadedly connected to the surface of the lead screw 282, one side of the moving block 283 passing through the trash rack 100 and fixedly connected to one side of the moving frame 210, and one end of the mounting rod 220 passing through the trash rack 100 and fixedly connected to the surface of the moving block 283.

[0029] The inner wall of the trash rack frame 100 is provided with a moving groove that matches the movement of the moving block 283 and the mounting rod 220. When the first motor 281 is started by the controller, the output shaft of the first motor 281 drives the lead screw 282 to rotate, thereby causing the moving block 283 to drive the moving frame 210 and the mounting rod 220 to move upward synchronously.

[0030] like Figure 3 , Figure 4 and Figure 5 As shown, the drive assembly 280 also includes a reciprocating screw 284 rotatably connected to the top of the trash rack frame 100. One end of the reciprocating screw 284 and the surface of the output shaft of the first motor 281 are fixedly connected with bevel gears 285. The two bevel gears 285 are meshed together. A vertical rod 286 is installed on the surface of the reciprocating screw 284. A slide rod 287 is slidably connected to one side of the vertical rod 286. The other end of the slide rod 287 is fixedly connected to the other side of the connecting plate 270.

[0031] When the first motor 281 starts, it drives the reciprocating screw 284 to rotate under the action of the two bevel gears 285. The reciprocating screw 284 is in the form of two threaded grooves with the same pitch and opposite directions, connected at both ends by a transition curve. The rotation of the reciprocating screw 284 causes the side of the spiral groove to push the limit block placed in the spiral groove to make axial reciprocating motion. Therefore, when the reciprocating screw 284 rotates, it will drive the vertical rod 286 to move back and forth.

[0032] like Figure 4 As shown, two cleaning rods 231 are fixedly connected to one side of the mounting plate 230. The vertical cross-section of the cleaning rod 231 is a right-angled triangle. The vertical surface of the cleaning rod 231 is in contact with the surface of the trash rack. Therefore, when the mounting plate 230 moves upward, the cleaning rod 231 will move downward along the surface of the trash rack.

[0033] like Figure 4 As shown, a baffle 232 is fixedly connected to the upper end of one side of the mounting plate 230, and the baffle 232 is inclined. The lower end of the baffle 232 is located above the higher end of the cleaning plate 240.

[0034] like Figure 4 As shown, the top of the mounting plate 230 forms an angle with the horizontal plane. This reduces the resistance between the mounting plate 230 and the water flow as the mounting plate 230 moves upward.

[0035] like Figure 4 As shown, a groove is provided at the bottom end of the cleaning plate 240, and the surface of the slider 250 is slidably connected to the inner wall of the groove. This limits the movement of the slider 250.

[0036] In use, this invention drives the electric cleaning brush 211 to rotate while simultaneously starting the first motor 281 via the controller, which in turn drives the lead screw 282 to rotate. This causes the moving block 283 to move the electric cleaning brush 211 upwards via the moving frame 210 to clean the trash rack. As the moving block 283 moves the moving frame 210 upwards, it also moves the mounting rod 220, mounting plate 230, and sliding rod 287 upwards synchronously. This causes the mounting plate 230 to move the cleaning plate 240 upwards along the trash rack's channel, in sync with the electric cleaning brush 211. At this time, the mounting plate 230 moves the cleaning rod 231 upwards against the surface of the trash rack to scrape away dirt and other adhering substances. Simultaneously, the upward movement of the cleaning plate 240 cleans the channels within the trash rack. The debris is cleaned up, and under the action of the inclined surface of the cleaning plate 240, the cleaned debris is guided towards the electric cleaning brush 211, so that the electric cleaning brush 211 cleans up the debris. At the same time, the first motor 281 starts and drives the reciprocating screw 284 to rotate synchronously under the action of the two bevel gears 285, and drives the vertical rod 286 to move back and forth, so that the slide rod 287 moves upward and reciprocates horizontally at the same time. Through the connecting plate 270, it drives multiple moving rods 260 to move back and forth, so that the cleaning plate 240 will continuously swing back and forth during the upward movement of the slider 250, so that the debris cleaned on the cleaning plate 240 can slide better towards the electric cleaning brush 211, and the cleaning operation is completed.

[0037] It should be noted that the motors and other components mentioned above are all devices with relatively mature existing technologies. The specific model can be selected according to actual needs. The motor can be powered by a built-in power supply or by AC power. The specific power supply method should be selected according to the situation, and will not be elaborated here.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cleaning device for trash racks used in water conservancy projects, characterized in that, include: Trash rack frame (100) for installing trash racks. A cleaning mechanism (200) includes a movable frame (210) slidably connected to the front end of a trash rack (100). An electric cleaning brush (211) is rotatably connected to the inner wall of the movable frame (210). An installation rod (220) is slidably connected to the inner wall of the trash rack (100). A plurality of evenly distributed installation plates (230) are fixedly connected to the top end of the installation rod (220). A cleaning plate (240) is hinged to one side of the installation plate (230). A slider (250) is slidably connected to the bottom end of the cleaning plate (240). A moving rod (260) is hinged to the bottom end of the slider (250). The other end of each of the multiple moving rods (260) passes through the corresponding installation plate (230) and is fixedly connected to a connecting plate (270). A drive assembly (280) is provided at the top end of the trash rack (100). The drive assembly (280) includes a first motor (281) fixedly connected to the top of the trash rack frame (100), a lead screw (282) rotatably connected to the inner wall of the trash rack frame (100), the top end of the lead screw (282) passing through the trash rack frame (100) and fixedly connected to the output shaft of the first motor (281), a moving block (283) threadedly connected to the surface of the lead screw (282), one side of the moving block (283) passing through the trash rack frame (100) and fixedly connected to one side of the moving frame (210), and one end of the mounting rod (220) passing through the trash rack frame (100) and fixedly connected to the surface of the moving block (283). The drive assembly (280) also includes a reciprocating screw (284) rotatably connected to the top of the trash rack frame (100). One end of the reciprocating screw (284) and the surface of the output shaft of the first motor (281) are fixedly connected with bevel gears (285). The two bevel gears (285) are meshed together. A vertical rod (286) is installed on the surface of the reciprocating screw (284). A slide rod (287) is slidably connected to one side of the vertical rod (286). The other end of the slide rod (287) is fixedly connected to the other side of the connecting plate (270).

2. The cleaning device for trash racks used in water conservancy projects according to claim 1, characterized in that: Two cleaning rods (231) are fixedly connected to one side of the mounting plate (230), and the vertical cross section of the cleaning rods (231) is a right triangle.

3. The cleaning device for trash racks used in water conservancy projects according to claim 1, characterized in that: A baffle (232) is fixedly connected to the upper end of one side of the mounting plate (230), and the baffle (232) is inclined.

4. The cleaning device for trash racks used in water conservancy projects according to claim 1, characterized in that: The top of the mounting plate (230) forms an angle with the horizontal plane.

5. A cleaning device for trash racks used in water conservancy projects according to claim 1, characterized in that: The bottom end of the cleaning plate (240) is provided with a sliding groove, and the surface of the slider (250) is slidably connected to the inner wall of the sliding groove.