Water conservancy trash rack
By introducing a combination design of filter belt, cleaning brush roller and water-blocking scraper into the hydraulic trash rack, the problem of impurity accumulation is solved, continuous cleaning of the filter belt is achieved, and the cleaning effect is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 蔡武
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-07
Smart Images

Figure CN224468333U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of trash rack technology, and in particular to a hydraulic trash rack. Background Technology
[0002] A trash rack is a frame structure installed in front of the water inlet to block debris (generally referred to as dirt) such as aquatic plants and driftwood carried by the water flow.
[0003] Chinese utility model CN218894039U discloses a hydraulic debris barrier. This barrier increases the filtration area by tilting the barrier, trapping larger debris in the wastewater at the front. A telescopic cylinder pulls a scraper upwards, pushing the debris along the sidewall of the barrier and into a collection frame. The collected debris can then be processed by removing the collection frame from the positioning frame, facilitating the collection and treatment of debris in wastewater. However, this hydraulic debris barrier still has the following problems in use:
[0004] This water conservancy trash rack cleans up impurities by moving a scraper up and down. When the scraper slides down, it pushes the impurities to the bottom of the filter screen. Moreover, the impurities pushed to the bottom cannot be scraped up, which easily causes impurities to accumulate at the bottom. Utility Model Content
[0005] The purpose of this invention is to at least solve one of the aforementioned technical defects.
[0006] Therefore, one objective of this utility model is to propose a hydraulic debris barrier to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.
[0007] To achieve the above objectives, one embodiment of this utility model provides a hydraulic debris barrier, including a connecting bucket. A driven roller is rotatably connected to the bottom of the inner wall of the connecting bucket. Support rods are fixedly connected to both sides of the top of the connecting bucket. A central shaft is rotatably connected to the center of the top of the two support rods. A driving roller is fixedly connected to the middle of the central shaft. A filter belt is driven and connected to the outer wall of the driving roller and the driven roller. The filter belt is inclined. Connecting ears are fixedly connected to one side of the two support rods. A cleaning brush roller is rotatably connected to the middle of the two connecting ears. A driven gear is fixedly connected to one end of the cleaning brush roller. A driving gear is fixedly connected to one end of the central shaft. The driving gear and the driven gear mesh with each other. The cleaning brush roller contacts the top side of the backwater surface of the filter belt. The width of the filter belt is adapted to the width of the inner wall of the connecting bucket.
[0008] Preferably, in any of the above schemes, a reduction motor is fixedly connected to the top center of one of the two support rods, and the output end of the reduction motor is fixedly connected to the end of the central shaft away from the drive gear.
[0009] The technical effect achieved by adopting the above solution is that the filter belt can be driven by the geared motor to slowly lift impurities.
[0010] Preferably, in any of the above embodiments, a water-blocking scraper is fixedly connected to the bottom of the connecting hopper near the water-facing side of the filter belt. The water-blocking scraper is used to block the gap between the bottom of the filter belt and the bottom of the inner wall of the connecting hopper, and the surface of the water-blocking scraper is in contact with the surface of the filter belt.
[0011] The technical effect achieved by adopting the above solution is that, by blocking the water with a scraper, impurities can be prevented from slipping away from the gap between the bottom of the filter belt and the bottom of the inner wall of the connecting bucket.
[0012] Preferably, in any of the above embodiments, the length of the cleaning brush roller is equal to the width of the filter belt, and the length of the water-blocking scraper is equal to the width of the filter belt.
[0013] The technical effect achieved by adopting the above solution is that the cleaning brush roller can completely clean the filter belt, while the water-blocking scraper can completely cover the bottom gap of the filter belt.
[0014] Preferably, in any of the above embodiments, a collection box is mounted on the top of the connecting bucket near the sweeping brush roller, the position of the collection box corresponds to the position of the bottom of the sweeping brush roller, and the length of the collection box is adapted to the length of the sweeping brush roller.
[0015] The technical effect achieved by adopting the above solution is that the collection box can completely collect the impurities swept off by the cleaning brush roller, preventing them from falling into the inner wall of the connecting bucket.
[0016] Preferably, as described in any of the above schemes, the outer wall of the filter belt is fixedly connected with a plurality of retrieval rubber strips.
[0017] The technical effect achieved by adopting the above solution is that several retrieval strips can scoop up some floating impurities, while the soft strips can pass through the cleaning brush roller.
[0018] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:
[0019] This hydraulic debris barrier uses a filter belt to filter impurities. The filter belt is then driven by an active roller to pick up the impurities. After the impurities are flipped to the back, they are swept off by a rotating cleaning brush roller, thus cleaning the surface of the filter belt. The filter belt is continuously and completely cleaned, improving the cleaning effect. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a side view of the structure of this utility model;
[0022] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA.
[0023] In the diagram: 1-Connecting bucket, 2-Support rod, 3-Central shaft, 4-Drive gear, 5-Reduction motor, 6-Filter belt, 7-Retrieving rubber strip, 8-Sweeping brush roller, 9-Driven gear, 10-Collection box, 11-Water baffle scraper, 12-Driven roller, 13-Driven roller. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.
[0025] Example 1: As Figures 1 to 3 As shown, a hydraulic debris barrier includes a connecting bucket 1. A driven roller 12 is rotatably connected to the bottom of the inner wall of the connecting bucket 1. Support rods 2 are fixedly connected to both sides of the top of the connecting bucket 1. A central shaft 3 is rotatably connected to the center of the top of the two support rods 2. An active roller 13 is fixedly connected to the middle of the central shaft 3. A filter belt 6 is driven and connected to the outer wall of the active roller 13 and the driven roller 12. The filter belt 6 is inclined. A connecting ear is fixedly connected to one side of each of the two support rods 2. A cleaning brush roller 8 is rotatably connected to the middle of the two connecting ears. A driven gear 9 is fixedly connected to one end of the cleaning brush roller 8. An active gear 4 is fixedly connected to one end of the central shaft 3. The active gear 4 and the driven gear 9 are meshed and connected. The cleaning brush roller 8 contacts the top side of the backwater surface of the filter belt 6. The width of the filter belt 6 is adapted to the width of the inner wall of the connecting bucket 1.
[0026] As an optional technical solution of this utility model, a reduction motor 5 is fixedly connected to the top center of one of the two support rods 2. The output end of the reduction motor 5 is fixedly connected to the end of the central shaft 3 away from the driving gear 4. The reduction motor can drive the filter belt 6 to slowly lift impurities.
[0027] As an optional technical solution of this utility model, a water-blocking scraper 11 is fixedly connected to the bottom of the connecting bucket 1 near the water-facing side of the filter screen belt 6. The water-blocking scraper 11 is used to block the gap between the bottom of the filter screen belt 6 and the bottom of the inner wall of the connecting bucket 1. The surface of the water-blocking scraper 11 is in contact with the surface of the filter screen belt 6. By blocking the gap between the bottom of the filter screen belt 6 and the bottom of the inner wall of the connecting bucket 1, impurities can be prevented from slipping away from the gap between the bottom of the filter screen belt 6 and the bottom of the inner wall of the connecting bucket 1.
[0028] As an optional technical solution of this utility model, the length of the cleaning brush roller 8 is equal to the width of the filter belt 6, and the length of the water-blocking scraper 11 is equal to the width of the filter belt 6, so that the cleaning brush roller 8 can completely clean the filter belt 6, and at the same time the water-blocking scraper 11 can completely cover the bottom gap of the filter belt 6.
[0029] As an optional technical solution of this utility model, a collection box 10 is installed on the top of the connecting bucket 1 near the cleaning brush roller 8. The position of the collection box 10 corresponds to the position of the bottom of the cleaning brush roller 8, and the length of the collection box 10 is adapted to the length of the cleaning brush roller 8. The collection box 10 can completely collect the impurities swept off by the cleaning brush roller 8 and prevent them from falling into the inner wall of the connecting bucket 1.
[0030] As an optional technical solution of this utility model, a number of retrieval rubber strips 7 are fixedly connected to the outer wall of the filter screen belt 6. The number of retrieval rubber strips can scoop up some floating impurities, and at the same time, the soft rubber strips can be cleaned by the cleaning brush roller 8.
[0031] A type of hydraulic debris barrier operates on the following principle:
[0032] 1) Install and fix the connecting bucket 1 into the water conservancy channel, and filter impurities through the filter screen belt 6;
[0033] 2) Then, the filter belt 6 is driven by the active roller 13 to pick up the impurities;
[0034] 3) After the impurities are flipped upwards to the back side, the cleaning brush roller 8 can be rotated to sweep the impurities down and let them fall into the collection box 10.
[0035] In summary, this hydraulic debris barrier can filter impurities through the filter belt 6, and then the filter belt 6 is driven by the drive roller 13 to pick up the impurities. After the impurities are flipped upwards to the back side, the cleaning brush roller 8 can sweep the impurities down, thus cleaning the surface of the filter belt 6. The filter belt 6 is continuously and completely cleaned, improving the cleaning effect.
[0036] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A hydraulic debris barrier, characterized in that: The device includes a connecting bucket (1), with a driven roller (12) rotatably connected to the bottom of the inner wall of the connecting bucket (1). Support rods (2) are fixedly connected to both sides of the top of the connecting bucket (1). A central shaft (3) is rotatably connected to the center of the top of the two support rods (2). A driving roller (13) is fixedly connected to the middle of the central shaft (3). A filter belt (6) is driven by the outer walls of the driving roller (13) and the driven roller (12). The filter belt (6) is inclined. One side of the support rod (2) is fixedly connected to a connecting ear, and the middle of the two connecting ears is rotatably connected to a cleaning brush roller (8). One end of the cleaning brush roller (8) is fixedly connected to a driven gear (9), and one end of the central shaft (3) is fixedly connected to a driving gear (4). The driving gear (4) meshes with the driven gear (9). The cleaning brush roller (8) contacts the top side of the back surface of the filter belt (6), and the width of the filter belt (6) is adapted to the width of the inner wall of the connecting bucket (1).
2. The hydraulic trash rack according to claim 1, characterized in that: A geared motor (5) is fixedly connected to the top center of one of the two support rods (2), and the output end of the geared motor (5) is fixedly connected to the end of the central shaft (3) away from the drive gear (4).
3. A hydraulic trash rack according to claim 2, characterized in that: A water-blocking scraper (11) is fixedly connected to the bottom of the connecting bucket (1) near the water-facing side of the filter belt (6). The water-blocking scraper (11) is used to block the gap between the bottom of the filter belt (6) and the bottom of the inner wall of the connecting bucket (1). The surface of the water-blocking scraper (11) is in contact with the surface of the filter belt (6).
4. A hydraulic trash rack according to claim 3, characterized in that: The length of the cleaning brush roller (8) is equal to the width of the filter belt (6), and the length of the water-blocking scraper (11) is equal to the width of the filter belt (6).
5. A hydraulic trash rack according to claim 4, characterized in that: A collection box (10) is mounted on the top of the connecting bucket (1) near the side of the sweeping brush roller (8). The position of the collection box (10) corresponds to the position of the bottom of the sweeping brush roller (8), and the length of the collection box (10) is adapted to the length of the sweeping brush roller (8).
6. A hydraulic trash rack according to claim 5, characterized in that: Several retrieval strips (7) are fixedly connected to the outer wall of the filter belt (6).