A water conservancy gate water side cleaning device

Abstract

A cleaning device for the water-facing side of a hydraulic gate includes trolleys that can respectively engage and slide horizontally on the top and bottom of the gate's water-facing side, and a cable pulled by the two trolleys. The cable is covered with a brush sleeve for cleaning. The upper and lower ends of the cable are connected to the corresponding trolleys via tension springs. A drive mechanism is provided on the upper trolley to drive the cable and its brush sleeve to reciprocate vertically. The drive mechanism includes a base fixed to the trolley and a driven roller and a driving roller rotatably mounted on the base. A clamping gap is formed between the driven roller and the driving roller to hold the cable, and the roller surfaces of the driven roller and the driving roller respectively form friction pairs with the cable. The driving roller is also connected to the output shaft of a drive motor via a residual gear system. This invention solves the problems of uneven cleaning force distribution, easy jamming at the lower end, and poor bottom cleaning effect in the prior art, achieving efficient, stable, and full-coverage gate cleaning.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, specifically to a water-facing side cleaning device for a water conservancy gate. Background Technology

[0002] In water conservancy projects, gates are crucial facilities for controlling water flow and regulating water levels. Their upstream side is submerged for extended periods, making them prone to accumulating silt, aquatic organisms, and other impurities. If cleaning is not timely, it not only affects the gate's opening and closing but can also cause structural corrosion and shorten its service life. Therefore, developing efficient and automated gate cleaning devices is of significant engineering importance.

[0003] Currently, various automated cleaning devices have been proposed. For example, CN219357106U provides an automated cleaning device for gates in hydraulic engineering projects. It uses a horizontal screw at the top of the gate to drive a slider, with a vertical rotating shaft below the slider. Scrapers and brushes are mounted on the rotating shaft, and the gate surface is cleaned through a combination of shaft rotation and horizontal movement. However, the rotating shaft is only driven by the screw at the top, lacking effective support and clamping force towards the gate at the bottom, resulting in uneven cleaning force distribution, especially at the bottom of the gate where the cleaning effect is poor. Furthermore, the rotating shaft is prone to operational stability and even equipment failure due to lower-end swaying or jamming during movement. CN221919269U further optimizes the cleaning structure by using a bidirectional motor to drive multiple sets of brushes to rotate, and a screw to drive the cleaning plate to move horizontally. However, it still relies on a rigid rotating shaft structure and lacks an adaptive clamping mechanism at the bottom, making it difficult to adapt to uneven gate surfaces or changes in the thickness of deposits, resulting in limited cleaning effectiveness.

[0004] In summary, existing technologies generally suffer from problems such as uneven distribution of cleaning force, easy jamming at the lower end, and poor cleaning effect at the bottom. There is an urgent need for a gate cleaning device with a reasonable structure, uniform cleaning force, and strong adaptability. Summary of the Invention

[0005] The present invention aims to provide a water-facing side cleaning device for hydraulic gates to solve the problems of uneven cleaning force distribution, easy jamming at the lower end, and poor bottom cleaning effect in the prior art, so as to achieve efficient, stable and full-coverage gate cleaning.

[0006] To solve the above technical problems, the specific solution adopted by the present invention is as follows: a cleaning device for the water-facing side of a hydraulic gate, comprising trolleys that can respectively engage and slide horizontally on the top and bottom of the gate's water-facing side, and a cable pulled by the two trolleys. The cable is covered with a brush sleeve for cleaning. The upper and lower ends of the cable are respectively connected to the corresponding trolleys via tension springs. A driving mechanism is provided on the upper trolley for driving the cable and the brush sleeve on it to reciprocate vertically. The driving mechanism includes a base fixed on the trolley and a driven roller and a driving roller rotatably mounted on the base. A clamping gap is formed between the driven roller and the driving roller for clamping the cable. The roller surfaces of the driven roller and the driving roller respectively form friction pairs with the cable. The driving roller is also connected to the output shaft of the drive motor via a residual gear system.

[0007] Preferably, it also includes a T-shaped track, which can be fixed on the gate for the trolley to engage and slide in the horizontal direction. The trolley has a housing that can engage on the T-shaped track. The housing is provided with a traveling wheel and a traveling motor. The traveling wheel rolls with the outer edge of the gate. The output shaft of the traveling motor is driven by a traveling gear, which meshes with a rack set on the T-shaped track.

[0008] Preferably, the upper end of the cable is provided with a first hook, and a second hook is provided on the top tension spring for the first hook to hook onto; the lower end of the cable is connected to a counterweight via a corresponding tension spring, and the two sides of the counterweight are respectively provided with inclined wing plates. Two parallel and spaced guide plates are fixed on the bottom trolley. The two guide plates are inclined, and the distance between the two guide plates is greater than the outer diameter of the counterweight and less than the distance between the outer edges of the two wing plates. This allows the lower edges of the two wing plates to slide and engage with the upper edges of the two guide plates during the descent of the counterweight. After the wing plates slide down and disengage from the guide plates, the upper edges of the wing plates can press against the lower edges of the guide plates, thereby preventing the counterweight and the lower end of the cable connected to the counterweight from falling off the trolley.

[0009] Preferably, both the upper and lower sides of the wing plate and the upper and lower sides of the guide plate are smooth surfaces.

[0010] Preferably, the wing plate and the guide plate have the same tilt angle.

[0011] Preferably, the counterweight is a rectangular block, and the wing plate and guide plate are both rectangular strips.

[0012] Preferably, the base is provided with a fixed shaft seat for the rotation of the driving roller and a sliding shaft seat for the rotation of the driven roller. The sliding shaft seat slides with the base through a linear guide fixed on the base. The base is also provided with a threaded hole in which a positioning pin is installed. The positioning pin can press against the sliding shaft seat to make the driving roller and the driven roller clamp the cable.

[0013] Preferably, both the driving roller and the driven roller are distributed horizontally as a whole, and the ends of the driving roller and the driven roller are tilted upwards opposite to the trolley.

[0014] Preferably, the drive roller is provided with a full-tooth gear on its roller shaft, and the output shaft of the drive motor is connected to a residual-tooth gear that meshes with the full-tooth gear.

[0015] A method for cleaning the upstream side of a hydraulic gate, using any of the aforementioned hydraulic gate upstream side cleaning devices, includes the following steps: 1) Install the upper and lower trolleys at the top and bottom of the gate on the water-facing side, respectively; 2) Lower the cable and hook the counterweight to the bottom trolley, then hook the cable to the top trolley; 3) Start the drive mechanism to make the cable oscillate vertically; 4) Control the upper and lower trolleys to move synchronously or differentially in the horizontal direction.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. Uniform cleaning force, avoiding jamming: By setting up two small carriages at the top and bottom to carry the cable, the lower end of the cable is less likely to get stuck and is easier to get close to the gate surface, resulting in uniform cleaning force distribution and significantly improved cleaning effect; 2. W-shaped cleaning trajectory for more thorough cleaning: The cable generates vertical reciprocating vibration under the action of the tension spring and the residual gear in the drive mechanism. Combined with the horizontal movement of the trolley, the bristles form a W-shaped cleaning trajectory on the gate surface, resulting in high cleaning coverage. 3. Active pressing mechanism to enhance cleaning force: The roller shafts of the active roller and the driven roller are set at an angle, which pulls the upper end of the cable towards the back water side of the gate, so that the bristles are in close contact with the water-facing side and generate pressure; the lower end of the cable cooperates with the guide plate through the inclined distribution of wing plates, and further presses against the gate when pulled upward, enhancing the cleaning force; 4. Differential speed movement enables targeted cleaning in specific areas: By controlling the differential speed movement of the two trolleys, a denser cleaning path can be formed in local areas of the gate, which is suitable for areas with thicker deposits or complex structures. 5. Furthermore, during the cleaning process, when the thickness of the deposits on the gate surface is uneven or there are local protrusions, the cable and its bristle sleeve will adaptively respond due to the flexible connection and the extension and contraction characteristics of the tension spring. Specifically, when encountering thicker deposits or protruding areas, the cable will experience reverse resistance, which is transmitted to the upper and lower trolleys through the tension spring, instantly changing the cable's tension. This tension change will finely adjust the pressure of the bristle sleeve on the gate—the greater the resistance, the further the tension spring stretches, and the pressure of the bristle sleeve on the obstructed area increases accordingly, thus achieving "focused attack" on stubborn stains; while in flat areas with less deposits, the cable tension decreases, and the pressure of the bristle sleeve returns to normal, avoiding excessive wear on the bristles and the gate surface. This adaptive adjustment mechanism based on mechanical feedback requires no additional sensors or control systems, relying entirely on the ingenious response of the mechanical structure, which not only improves cleaning efficiency but also extends the service life of the device, demonstrating a high degree of unity between simple structure and intelligent effect, and achieving the effect of adaptive cleaning pressure adjustment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the state in which a water-facing side cleaning device of a hydraulic gate is assembled on the gate according to the present invention. The gate shown in the figure is its longitudinal section. Figure 2 This is a top view of the drive mechanism in this invention. Figure 3 This is a schematic diagram showing the cooperation relationship between the counterweight, wing plate, and guide plate in this invention; The markings in the diagram are as follows: 1. Gate, 2. Trolley, 201. Traveling wheel, 202. Traveling motor, 203. Housing, 204. Traveling gear, 3. Top bracket, 4. Tension spring, 5. Spring cylinder, 6. Second hook, 7. First hook, 8. Drive mechanism, 801. Linear guide, 802. Threaded hole, 803. Base, 804. Full gear, 805. Drive motor, 806. Residual gear, 807. Drive roller, 808. Fixed bearing, 809. Driven roller, 810. Sliding bearing, 9. Rack, 10. T-rail, 11. Cable, 12. Brush sleeve, 13. Counterweight, 14. Wing plate, 15. Guide plate, 16. Bottom bracket. Detailed Implementation

[0018] like Figure 1 As shown, this embodiment provides a water-facing side cleaning device for a hydraulic gate 1, which mainly includes two trolleys 2, a cable 11 connected between the two trolleys 2, a drive mechanism 8 that drives the cable 11 to reciprocate vertically, and a counterweight and guide structure for guiding and pressing the lower end of the cable 11.

[0019] Two trolleys 2 are respectively engaged at the top and bottom of the gate 1 on the water-facing side and can slide horizontally. The housing 203 of the trolley 2 is designed as a rectangular frame structure, which houses the travel motor 202 and transmission components. The travel wheel 201 is set on the housing 203 and forms a rolling engagement with the outer edge of the gate 1 to support the trolley 2 and guide its movement. The output shaft of the travel motor 202 is connected to a travel gear 204, which meshes with the rack 9 of the T-shaped track 10 fixedly installed on the gate 1. By controlling the forward and reverse rotation of the travel motor 202, the trolley 2 can be driven to reciprocate along the track. The trolley 2 is also provided with a slot corresponding to the outline of the T-shaped track, which engages with the T-shaped track to prevent the trolley 2 from falling off. The internal structure of the trolley 2 is a conventional design in this field, and those skilled in the art can understand its specific installation and operation based on the corresponding text description and drawings.

[0020] The upper and lower ends of cable 11 are connected to the top carriage 2 and the bottom carriage 2 respectively via tension springs 4. The tension spring 4 located on the top carriage 2 is housed within a spring cylinder 5 with an open bottom. The spring cylinder 5 is fixed to the carriage 2 by a top bracket 3, and its lower end is hooked to the first hook 7 located at the upper end of cable 11 via a second hook 6. The tension spring 4 located at the bottom is connected to a counterweight 13, such as... Figure 3 As shown, inclined wing plates 14 are fixedly installed on both sides of the counterweight 13. Two parallel guide plates 15 are fixedly installed on the bottom trolley 2. These two guide plates 15 and the bottom support 16 together form a U-shaped structure with the opening facing away from the gate 1. The inclination angle of the guide plates 15 is the same as the inclination angle of the wing plates 14. When the counterweight 13 falls, the lower edge of its wing plate 14 can slide into contact with the upper edge of the guide plate 15. After continuing to slide down and disengaging from the guide plate 15, by pulling up the cable 11, the upper edge of the wing plate 14 can press against the lower edge of the guide plate 15, thereby preventing the counterweight 13 and the lower end of the cable 11 from falling off the bottom trolley 2. In this process, pressure is applied to the lower end of the cable 11 towards the gate 1, enhancing the cleaning effect.

[0021] like Figure 2As shown, the drive mechanism 8 is mounted on the top trolley 2 and is the core component for driving the cable 11 to generate vertical reciprocating oscillations. This mechanism includes a base 803 fixed to the trolley body, on which a drive roller 807 and a driven roller 809 are mounted. The roller shafts of the drive roller 807 and the driven roller 809 are generally distributed horizontally, but their ends opposite to the trolley 2 housing 203 are curved upwards. A gap is formed between the two rollers to clamp the cable 11, and arc-shaped grooves are formed on the roller surfaces to increase the contact area and friction with the cable 11. The drive roller 807 is connected to the output shaft of the drive motor 805 via a residual gear system. Specifically, a full-tooth gear 804 is fixedly fitted on the roller shaft of the drive roller 807, while a residual-tooth gear 806 meshing with it is mounted on the output shaft of the drive motor 805. When the drive motor 805 operates, the intermittent meshing of the residual gear 806 and the full gear 804 drives the drive roller 807 to rotate intermittently, thereby driving the clamped cable 11 to produce up-and-down reciprocating motion. The base 803 is provided with a fixed bearing 808 for mounting the drive roller 807 and a sliding bearing 810 for mounting the driven roller 809. The sliding bearing 810 forms a sliding fit with the base 803 through a linear guide 801. The base 803 has a threaded hole 802 and is equipped with a locating pin. Loosening the locating pin moves the sliding bearing 810 to adjust the clamping gap between the two rollers, facilitating the passage of the cable 11 and its brush sleeve 12; tightening the locating pin presses the driven roller 809 against the drive roller 807, firmly clamping the cable 11. In particular, since the ends of the driving roller 807 and the driven roller 809 are tilted upwards, a pulling force is generated on the upper end of the cable 11 towards the back water side of the gate 1 when clamping the cable 11, so that the entire cable 11 and the brush sleeve 12 on it can be more closely attached to the front water side of the gate 1.

[0022] The outer periphery of the cable 11 is covered with a bristle sleeve 12. The bristle sleeve 12 is preferably made of a highly elastic, abrasion-resistant material (such as rubber or nylon bristles) and is firmly fixed to the outer periphery of the cable 11 by a hot pressing process or a high-strength adhesive. Its outer diameter is slightly larger than that of the cable 11 itself to ensure that the bristles can effectively contact and clean the surface of the gate 1.

[0023] The implementation process of this device is as follows: First, initial installation is performed by placing the top trolley 2 and bottom trolley 2 on the T-shaped tracks 10 at the top and bottom of the gate 1, respectively, ensuring they are on the same side of the gate 1 and aligned vertically. After initial installation, the top trolley 2 and bottom trolley 2 are typically fixed in their respective positions on the gate 1, eliminating the need for repeated installation during each cleaning cycle and simplifying the operation. When cleaning is required, first loosen the positioning pin on the base 803 of the drive mechanism 8, pulling the sliding shaft seat 810 and driven roller 809 away from the driving roller 807 to widen the clamping gap. Then, lower the lower end of the cable 11 (along with the brush sleeve 12 on it) through this gap from top to bottom. To ensure stability during the lowering process, a recessed vertical guide groove can be provided on the gate 1 for the counterweight 13 to slide along and engage. The guide groove effectively limits the left and right swing of the counterweight 13, ensuring that it can accurately and smoothly align with the guide plate 15 on the bottom trolley 2 during its descent, thus allowing the lower end of the cable 11 to reliably connect to the bottom trolley 2 via the tension spring 4. Next, the first hook 7 at the upper end of the cable 11 is hooked to the second hook 6 under the spring cylinder 5 of the top trolley 2. At this time, both the upper and lower tension springs 4 are in a stretched state, providing the necessary tension for the cleaning operation. Finally, the driven roller 809 is pushed so that it clamps the cable 11 together with the driving roller 807, and the positioning pin is inserted to lock it, thus completing the preparation work before cleaning.

[0024] During the cleaning operation, the drive motor 805 is started, which drives the active roller 807 to rotate intermittently through the residual gear system, causing the cable 11 to oscillate vertically. At the same time, the travel motors 202 of the top and bottom trolleys 2 are started synchronously, driving the two trolleys 2 to move horizontally along the T-shaped track 10 towards the other side of the gate 1. During this process, the brush sleeve 12 forms a W-shaped cleaning trajectory on the water-facing surface of the gate 1 under the combined action of vertical oscillation and horizontal movement, achieving efficient and comprehensive cleaning coverage.

[0025] Furthermore, this invention can also achieve a differential cleaning mode. By controlling the top trolley 2 and the bottom trolley 2 to move at different speeds, the cable 11 connected between the two trolleys 2 can form a non-uniform movement trajectory on the surface of the gate 1. Specifically, when one trolley 2 moves faster than the other, the cable 11 will tilt while moving horizontally, resulting in a relatively longer dwell time in the area of ​​the gate 1 corresponding to the slower trolley 2. This speed difference causes the brush sleeve 12 to experience a relatively larger number of vertical oscillations in this area, thereby forming a denser cleaning path in a specific local area on the surface of the gate 1. This mode is particularly suitable for areas with thick deposits or complex structural shapes. By adjusting the speed difference, targeted intensive cleaning of key areas can be achieved, resulting in a localized deep cleaning effect.

[0026] Regarding maintenance, the brush sleeve 12, being a consumable part, can be easily disassembled and replaced after wear. Due to its special working environment, the bottom trolley 2 employs waterproof measures such as sealed bearings and a waterproof cover to ensure its stability and service life during underwater operation.

Claims

1. A cleaning device for the upstream side of a hydraulic gate, characterized in that: It includes trolleys (2) that can be respectively snapped into and slidably fitted in the horizontal direction on the top and bottom of the gate (1) on the water-facing side, and cables (11) pulled by the two trolleys (2). The outer periphery of the cables (11) is covered with brush sleeves (12) for cleaning. The upper and lower ends of the cables (11) are respectively connected to the trolleys (2) at the corresponding positions via tension springs (4). A drive mechanism (8) is provided on the upper trolley (2) for driving the cables (11) and the brush sleeves (12) on them to reciprocate vertically. The drive mechanism (8) includes a base (803) fixed on the trolley (2) and a driven roller (809) and a driving roller (807) rotatably mounted on the base (803). A clamping gap for clamping the cable (11) is formed between the driven roller (809) and the driving roller (807), and the roller surfaces of the driven roller (809) and the driving roller (807) respectively form a friction pair with the cable (11). The driving roller (807) is also connected to the output shaft of the drive motor (805) through a residual gear system. The upper end of the cable (11) is provided with a first hook (7), and a second hook (6) is provided on the top tension spring (4) for the first hook (7) to hook onto; the lower end of the cable (11) is connected to a counterweight (13) via a corresponding tension spring (4), and the two sides of the counterweight (13) are respectively provided with inclined wing plates (14), and two parallel and spaced guide plates (15) are fixed on the bottom trolley (2), the two guide plates (15) are inclined and the distance between the two guide plates (15) is large. The outer diameter of the counterweight (13) is smaller than the distance between the outer edges of the two wing plates (14), so that during the descent of the counterweight (13), the lower edge of the two wing plates (14) can slide and engage with the upper edge of the two guide plates (15), and after the wing plates (14) slide down and disengage from the guide plates (15), the upper edge of the wing plates (14) can press against the lower edge of the guide plates (15), thereby preventing the lower end of the counterweight (13) and the cable (11) connected to the counterweight (13) from being dislodged from the trolley (2); Both the driving roller (807) and the driven roller (809) are distributed horizontally as a whole, and the driving roller (807) and the driven roller (809) are distributed upwards opposite to the ends of the trolley (2).

2. The water-facing side cleaning device for a hydraulic gate as described in claim 1, characterized in that: It also includes a T-shaped track (10), which can be fixed on the gate (1) for the trolley (2) to engage and slide in the horizontal direction. The trolley (2) has a housing (203) that can engage on the T-shaped track (10). The housing (203) is provided with a traveling wheel (201) and a traveling motor (202). The traveling wheel (201) rolls with the outer edge of the gate (1). The output shaft of the traveling motor (202) is connected to a traveling gear (204), which meshes with a rack (9) on the T-shaped track (10).

3. The water-facing side cleaning device for a hydraulic gate as described in claim 1, characterized in that: The upper and lower sides of the wing plate (14) and the upper and lower sides of the guide plate (15) are smooth surfaces.

4. The water-facing side cleaning device for a hydraulic gate as described in claim 1, characterized in that: The wing plate (14) and the guide plate (15) have the same tilt angle.

5. A water-facing side cleaning device for a hydraulic gate as described in claim 1, characterized in that: The counterweight (13) is a rectangular block, and the wing plate (14) and guide plate (15) are both rectangular strips.

6. The water-facing side cleaning device for a hydraulic gate as described in claim 1, characterized in that: The base (803) is provided with a fixed shaft seat (808) for the active roller (807) to rotate and a sliding shaft seat (810) for the driven roller (809) to rotate and cooperate. The sliding shaft seat (810) is slidably engaged with the base (803) through a linear guide (801) fixed on the base (803). The base (803) is also provided with a threaded hole (802), in which a positioning pin is fitted. The positioning pin can press and cooperate with the sliding shaft seat (810) to make the active roller (807) and the driven roller (809) clamp the cable (11).

7. A water-facing side cleaning device for a hydraulic gate as described in claim 1, characterized in that: The roller shaft of the drive roller (807) is provided with a full tooth gear (804), and the output shaft of the drive motor (805) is connected to a residual tooth gear (806) that meshes with the full tooth gear (804).

8. A method for cleaning the upstream side of a hydraulic gate, characterized in that: The cleaning process using a water-facing side cleaning device for a hydraulic gate as described in any one of claims 1-7 includes the following steps: 1) Install the upper and lower trolleys (2) on the top and bottom of the gate (1) on the water-facing side, respectively; 2) Lower the cable (11) and hook the counterweight (13) to the bottom trolley (2), then hook the cable (11) to the top trolley (2); 3) Start the drive mechanism (8) to make the cable oscillate vertically; 4) Control the upper and lower trolleys (2) to move synchronously or differentially in the horizontal direction.

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