Water conservancy trash rack
By introducing adjustment and cleaning structures into the hydraulic bar screen, and utilizing motor-driven lead screws and threaded rods to achieve flexible adjustment and automatic cleaning of the bar screen height, the problem of fixed bar screen height in existing systems has been solved, improving the applicability and practicality of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 山东省调水工程运行维护中心东营分中心
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-19
AI Technical Summary
Existing hydraulic screens have a fixed height during use, making it difficult to adjust according to actual needs. Furthermore, after prolonged use, the surface becomes covered with debris, resulting in slow drainage and reducing the applicability and practicality of the equipment.
A hydraulic cleaning bar was designed, comprising an adjustment structure and a cleaning structure. The bar height can be flexibly adjusted by a motor-driven lead screw and threaded rod, and it is equipped with a cleaning brush for automatic cleaning to ensure unobstructed operation.
The system allows for flexible adjustment of the grille height, improving the applicability of the equipment. Furthermore, the automatic cleaning function prevents slow drainage, enhancing the practicality and stability of the equipment.
Smart Images

Figure CN224378800U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy engineering technology; more specifically, it relates to a water conservancy cleaning bar. Background Technology
[0002] Water conservancy is an engineering and technological system for developing and utilizing water resources and preventing water-related disasters, encompassing flood control, irrigation, water supply, power generation, and navigation. Through the construction of facilities such as reservoirs, dams, and canals, it regulates floods and droughts, ensures agricultural irrigation and domestic water supply, and supports industrial and ecological needs. Examples include the Three Gorges Dam for flood control and power generation, and the Dujiangyan Irrigation System for millennia. Water conservancy is crucial to people's livelihoods, the economy, and the environment, and is an important foundation for sustainable development, requiring a balance between resource utilization and environmental protection.
[0003] Hydraulic screens are key equipment used in water conservancy projects, sewage treatment, and water supply and drainage systems. They are mainly used to intercept and remove larger solid debris such as branches, plastic bottles, stones, and fibrous materials carried in the water flow to protect downstream treatment equipment such as water pumps, pipes, and valves from blockage or damage, ensuring smooth water flow and stable system operation.
[0004] Currently, existing bar screens often have limitations. Most existing equipment adjusts the screen height based on the actual height of the installation location, but the fixed height of these devices makes timely adjustments difficult. This necessitates customizing or preparing multiple screens of varying sizes, reducing the equipment's applicability. Furthermore, after prolonged use, the screen's outer surface accumulates debris, leading to slow drainage and further diminishing its practicality. Therefore, a new type of hydraulic cleaning bar screen is urgently needed to address these issues. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a hydraulic cleaning bar to solve the problems existing in the background art.
[0006] This utility model provides the following technical solution: a water conservancy cleaning grid, comprising: a water channel, wherein an adjustment structure and a cleaning structure are provided inside the outer surface of the upper end of the water channel; the adjustment structure includes an insertion groove, and the insertion groove is opened inside the outer surface of one side of the upper end of the water channel, wherein a first barrier grid is inserted inside the insertion groove, and a second barrier grid is inserted inside the bottom surface of the first barrier grid.
[0007] The cleaning structure includes a movable trough, which is located inside the outer surface of the upper end of the water channel. The inner bearings on both sides of the inner wall surface of the movable trough are connected to lead screws. A second motor is installed inside the outer surface of the upper end of the water channel, and the output end of the second motor is fixedly connected to one end of the lead screw.
[0008] Preferably, the adjustment structure further includes a threaded hole, which is opened inside the upper outer surface of one end of the second barrier gate. A threaded rod is threadedly connected inside the threaded hole, and a first motor is installed at the upper end of the threaded rod. The upper end of the threaded rod is connected to the inner surface of the upper outer surface of one end of the first barrier gate by a bearing. This design allows the first barrier gate to move up or down on the outer surface of the second barrier gate.
[0009] Preferably, the internal dimensions of the insertion slot are adapted to the external dimensions of the first barrier gate, and the internal dimensions of the insertion slot are larger than the external dimensions of the second barrier gate. This design makes the second barrier gate more stable when inserted into the insertion slot.
[0010] Preferably, the cleaning structure further includes a movable block, which is sleeved on the outer surface of the lead screw. A third motor is installed on the outer surface of the upper end of the movable block, and a connecting rod is fixedly connected to the output end of the third motor. The connecting rod is bearing-connected to the inside of one end of the movable block, and a cleaning brush is threaded to the bottom of the connecting rod. This design allows the movable block to move inside the movable groove.
[0011] Preferably, the internal dimensions of the moving slot are adapted to the external dimensions of the moving block, which makes the moving block more stable when moving inside the moving slot.
[0012] Preferably, the cleaning brush is made of nylon, which increases the service life of the cleaning brush due to the good wear resistance and flexibility of the material itself.
[0013] The technical effects and advantages of this utility model are as follows: By starting the first motor, the threaded rod rotates inside the threaded hole, thereby causing the first barrier to move up or down on the outer surface of the second barrier. This allows for adjustment of the height between the second barrier and the first barrier, making it easy to adjust the usage height of the second barrier and the first barrier in a timely manner without the need for customization or preparation of a large number of sizes, thus improving the applicability of the equipment to a certain extent.
[0014] By activating the third motor, the output of the third motor drives the connecting rod to rotate, which in turn drives the cleaning brush to rotate. Then, the second motor can be activated, causing its output to drive the lead screw to rotate. This allows the moving block to move left or right within the moving groove, enabling the cleaning brush to clean the outer surfaces of the lead screw and the second motor. This avoids the problem of slow drainage at the locations of the lead screw and the second motor, thus improving the practicality of the equipment to a certain extent. Moreover, its overall structure is simple and reasonable in design, highly practical, and easy to promote and apply. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is a three-dimensional exploded view of the adjustment structure of this utility model.
[0017] Figure 3 This is a three-dimensional exploded view of the cleaning structure of this utility model.
[0018] Figure 4 This is a schematic diagram of the usage state of this utility model.
[0019] The attached diagram is labeled as follows: 1. Water channel; 2. Adjustment structure; 21. Insertion slot; 22. First barrier gate; 23. Second barrier gate; 24. Threaded hole; 25. Threaded rod; 26. First motor; 3. Cleaning structure; 31. Moving slot; 32. Lead screw; 33. Second motor; 34. Moving block; 35. Third motor; 36. Connecting rod; 37. Cleaning brush. Detailed Implementation
[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The water conservancy projects involved in this utility model are not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] Example 1, as Figures 1-4As shown, this embodiment proposes a water conservancy cleaning bar, including: a water channel 1, with an adjustment structure 2 and a cleaning structure 3 disposed inside the upper outer surface of the water channel 1; the adjustment structure 2 includes an insertion groove 21, which is opened inside the upper outer surface of the water channel 1, and a first barrier bar 22 is inserted inside the insertion groove 21, and a second barrier bar 23 is inserted inside the bottom surface of the first barrier bar 22; the adjustment structure 2 also includes a threaded hole 24, which is opened inside the upper outer surface of one end of the second barrier bar 23, and a threaded rod 25 is threadedly connected inside the threaded hole 24, and a first motor is installed at the upper end of the threaded rod 25. 26. The upper end bearing of the threaded rod 25 is connected to the interior of the upper outer surface of one end of the first barrier gate 22. The internal dimensions of the insertion slot 21 are adapted to the external dimensions of the first barrier gate 22, and the internal dimensions of the insertion slot 21 are larger than the external dimensions of the second barrier gate 23. This design makes the first barrier gate 22 more stable when inserted into the insertion slot 21, and makes the first barrier gate 22 more stable when moving inside the insertion slot 21. At the same time, this design allows the second barrier gate 23 to be inserted into the insertion slot 21 simultaneously, thereby allowing the first barrier gate 22 and the second barrier gate 23 to be adjusted according to their height.
[0022] Example 2, as Figure 3 and Figure 4 As shown, based on the same concept as the above embodiment, this embodiment also proposes: the cleaning structure 3 includes a movable groove 31, which is opened inside the outer surface of the other side of the upper end of the water channel 1. A lead screw 32 is connected to the internal bearings of the inner walls on both sides of the movable groove 31. A second motor 33 is installed inside the outer surface of the upper end of the water channel 1, and the output end of the second motor 33 is fixedly connected to one end of the lead screw 32. The cleaning structure 3 also includes a movable block 34, which is sleeved on the outer surface of the lead screw 32. A third motor 35 is installed on the outer surface of the upper end of the movable block 34, and a connecting rod 36 is fixedly connected to the output end of the third motor 35. The bearing is connected to the inside of one end of the moving block 34. The bottom of the connecting rod 36 is threaded with a cleaning brush 37. The internal dimensions of the moving groove 31 are adapted to the external dimensions of the moving block 34. The cleaning brush 37 is made of nylon. This design makes the moving block 34 more stable when moving inside the moving groove 31 and avoids the moving block 34 from deflecting when moving on the outer surface of the lead screw 32. At the same time, this design increases the service life of the cleaning brush 37 through the good wear resistance and flexibility of the material itself, and allows the cleaning brush 37 to clean the gap between the lead screw 32 and the second motor 33, thereby improving the cleaning ability of the cleaning brush 37.
[0023] The lead screw 32 and connecting rod 36 in this application, as well as all movable parts, require regular cleaning and maintenance, including but not limited to dust removal and lubrication.
[0024] Working principle: When the equipment is in use, the first barrier gate 22 and the second barrier gate 23 are inserted into the insertion slot 21. At this time, the first motor 26 can be started, causing the threaded rod 25 to rotate inside the threaded hole 24. This causes the first barrier gate 22 to move up or down on the outer surface of the second barrier gate 23. The height between the first barrier gate 22 and the second barrier gate 23 can be adjusted according to the usage height of the insertion slot 21. This facilitates the adjustment of the height between the first barrier gate 22 and the second barrier gate 23 according to the different usage heights of the water channel 1 at different locations. After the first barrier gate 22 and the second barrier gate 23 have been used for a long time, the third motor 35 can be started to drive the connecting rod 36 and the cleaning brush 37 to rotate. By starting the second motor 33, the output end of the second motor 33 drives the lead screw 32 to rotate, thereby causing the moving block 34 to move left or right inside the moving groove 31. This, in turn, drives the third motor 35, the connecting rod 36 and the cleaning brush 37 to move left and then right synchronously, so as to clean the outer surfaces of the lead screw 32 and the second motor 33 back and forth. The above is the complete working principle of this utility model.
[0025] The first motor 26, the second motor 33, and the third motor 35 are products that can be purchased directly from the market. Their principles, connection methods, and control methods are all existing technologies well known to those skilled in the art, so they will not be described in detail here.
[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0027] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0028] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A hydraulic screen for cleaning and removing sewage, characterized in that, include: Water channel (1), wherein an adjustment structure (2) and a cleaning structure (3) are provided inside the outer surface of the upper end of the water channel (1); The adjustment structure (2) includes an insertion slot (21), and the insertion slot (21) is opened inside the outer surface of the upper end of the water channel (1). A first barrier grille (22) is inserted inside the insertion slot (21), and a second barrier grille (23) is inserted inside the bottom surface of the first barrier grille (22). The cleaning structure (3) includes a movable groove (31), which is located inside the outer surface of the upper end of the water channel (1). The inner bearings on both sides of the inner wall surface of the movable groove (31) are connected to a lead screw (32). A second motor (33) is installed inside the outer surface of the upper end of the water channel (1), and the output end of the second motor (33) is fixedly connected to one end of the lead screw (32).
2. The water conservancy cleaning bar according to claim 1, characterized in that: The adjustment structure (2) also includes a threaded hole (24), which is located inside the upper outer surface of one end of the second barrier gate (23). The threaded hole (24) is threadedly connected to a threaded rod (25), and a first motor (26) is installed at the upper end of the threaded rod (25). The upper end of the threaded rod (25) is connected to the upper outer surface of one end of the first barrier gate (22) by a bearing.
3. A water conservancy cleaning bar according to claim 2, characterized in that: The internal dimensions of the insertion slot (21) are adapted to the external dimensions of the first barrier gate (22), and the internal dimensions of the insertion slot (21) are larger than the external dimensions of the second barrier gate (23).
4. A water conservancy cleaning bar according to claim 1, characterized in that: The cleaning structure (3) also includes a movable block (34), which is sleeved on the outer surface of the lead screw (32). A third motor (35) is installed on the upper outer surface of the movable block (34), and a connecting rod (36) is fixedly connected to the output end of the third motor (35). The connecting rod (36) is bearing connected to the inside of one end of the movable block (34), and a cleaning brush (37) is threaded to the bottom of the connecting rod (36).
5. A water conservancy cleaning bar according to claim 4, characterized in that: The internal dimensions of the moving slot (31) are adapted to the external dimensions of the moving block (34).
6. A water conservancy cleaning bar according to claim 4, characterized in that: The cleaning brush (37) is made of nylon.