A device for automatically cleaning key parts of a rubber dam using the potential energy of river water.

Abstract

This utility model relates to the fields of hydraulic machinery and cleaning, specifically an automatic device for cleaning key parts of a rubber dam using the potential energy of river water. It includes a water supply pipe, a frame, a drive unit, a transmission unit, and a cleaning unit. One end of the water supply pipe is submerged in the river water, and the other end is connected to the drive unit. The drive unit, transmission unit, and cleaning unit are all mounted on the frame. Based on the siphon principle, this utility model continuously delivers river water to the drive unit through the water supply pipe, converting the gravitational potential energy of the river water into mechanical energy in the form of rotational motion. Then, through gear transmission, worm gear transmission, and incomplete gear and rack transmission, the cleaning unit is ultimately driven to perform reciprocating linear motion, achieving the function of cleaning key parts of the rubber dam. Besides using the potential energy of the river water, no other energy is required, resulting in no energy costs and achieving a green, environmentally friendly, and pollution-free solution.

Description

Technical Field

[0001] This utility model relates to the fields of water conservancy machinery and cleaning machinery, specifically a device for automatically cleaning key parts of a rubber dam using the potential energy of river water. Background Technology

[0002] Rubber dams, as a new type of hydraulic structure, have been widely used in various waterways in recent years, especially in urban waterways with significant drops. Rubber dams not only serve the functions of water storage, flood control, and irrigation, but also beautify the environment. During use, many stains accumulate on the surface of rubber dams. To maintain the overall beauty of the waterway environment, these stains need to be cleaned regularly. Currently, the cleaning of rubber dams in various regions mainly involves manual scrubbing, using cleaning solutions to chemically react with the stains. During the entire scrubbing process, especially on the critical front parts of the rubber dam, the operators experience high labor intensity and safety risks, and the cleaning solutions cause serious environmental pollution. Even when using some power tools, these tools are not specifically designed for rubber dam cleaning, resulting in unsatisfactory cleaning effects, significant safety risks, and high energy consumption, leading to high cleaning costs.

[0003] To address the aforementioned issues, a device was designed for automatically cleaning key components of a rubber dam using the potential energy of river water. Utilizing the siphon principle, upstream river water is continuously drawn into the drive unit via a water pipe. The gravitational potential energy of the river water within the pipe powers the impeller within the drive unit. Through gear transmission, worm gear transmission, and incomplete gear and rack transmission, the cleaning unit is ultimately driven to perform reciprocating linear motion. The cleaning brushes on the cleaning unit adhere to the key components of the rubber dam, thus achieving continuous and automatic cleaning of these components. This device utilizes a continuous flow of river water to clean the key components of the rubber dam without the need for cleaning agents, making it environmentally friendly and pollution-free. By using the gravitational potential energy of the river water to drive the cleaning brushes for automatic cleaning, it effectively eliminates the safety risks associated with manual cleaning of key components and effectively utilizes the potential energy of the river water, saving on energy costs such as electricity and fuel. The only costs incurred during operation are the one-time manufacturing cost and maintenance costs of the device itself. Summary of the Invention

[0004] The technical problem to be solved by this utility model is: to design an automatic scrubbing device for key parts of rubber dams using the potential energy of river water, to solve the current situation where there is no dedicated scrubbing device to replace traditional manual scrubbing, to solve the problem of using the potential energy of river water, which has zero energy cost, to replace relatively high energy costs such as oil and electricity as the power to drive the scrubbing brush, to solve the problem of the scrubbing brush having no empty stroke during the scrubbing process, to achieve continuous scrubbing without empty stroke, and to solve the problem of adjusting the scrubbing brush to adapt to different rubber dam surfaces.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is an automatic cleaning device for key parts of a rubber dam using the potential energy of river water. It includes five parts: a water supply pipe, a frame, a drive unit, a transmission unit, and a cleaning unit. One end of the water supply pipe is connected to the drive unit, and the other end is submerged in the water area intercepted by the rubber dam. The drive unit, the transmission unit, and the cleaning unit are all installed on the frame.

[0006] The front and rear columns are each set in pairs, symmetrically arranged on the left and right, and are connected to the bottom support plate, lower support plate, middle support plate, upper support plate, and top support frame. The middle columns are also set in pairs, each connected to the bottom support plate and lower support plate. The cylindrical guide rails are set in two pairs, one at the top and one at the bottom, and are connected to the two rear columns. The four wheels are set and installed on the bottom support plate.

[0007] The drive unit includes a base, impeller shaft, impeller, impeller cover, water inlet channel, and water inlet, realizing the conversion of river water potential energy into mechanical energy of rotational motion.

[0008] The transmission unit includes a driving gear, a driven gear, a worm, a worm wheel, a driving adjusting gear, a driven adjusting gear, a forward rotating gear, a reverse rotating gear, a forward incomplete gear, a reverse incomplete gear, and a rack, to achieve power transmission.

[0009] The scrubbing unit includes a limiting base plate, a linear bearing, a support rod, a bent rod, a backstop wheel, a large idler roller, an idler roller, a scrubbing brush, a scrubbing brush support frame, an adjusting bolt, an inner limiting strip, and an outer limiting strip. The scrubbing unit is in direct contact with the rubber dam and moves linearly back and forth on the surface of the key parts of the rubber dam to scrub the key parts of the rubber dam.

[0010] Optionally, the bottom surface of the base is connected to the bottom support plate, and the upper surface of the base is an arc surface for connecting with the impeller cover. The impeller cover is cylindrical, with elongated holes at the top and bottom of the cylindrical surface. The top hole is the water inlet, and the bottom hole is the water outlet. The water inlet is connected to the water inlet channel, which is connected to the impeller cover at the water inlet and the two are interconnected. The water inlet channel has two inlets with circular cross-sections for connecting with the water supply pipe. A coaxial impeller shaft is installed on the impeller cover, and the impeller is installed on the impeller shaft. The gravity of the river water drives the impeller to rotate, and the impeller drives the impeller shaft to rotate.

[0011] Optionally, the driving gear is mounted on the impeller shaft and meshes with the driven gear. The driven gear is mounted on the worm, which meshes with the worm wheel. The worm wheel and the driving adjusting gear are mounted on the same shaft. The driving adjusting gear meshes with the driven adjusting gear. The driven adjusting gear and the forward rotating gear are mounted on the same shaft. The forward rotating gear meshes with the reverse rotating gear, and both are of the same size. The driven adjusting gear, the forward rotating gear, and the forward incomplete gear are mounted on the same shaft. The reverse rotating gear and the reverse incomplete gear are mounted on the same shaft. The forward incomplete gear and the reverse incomplete gear are the same size, and both have half the number of teeth of a full gear of the same size. Both mesh with the rack. When one is engaged, the other is idling and not engaged. Both have the same angular velocity. Every 180°, their states are interchanged, that is, the incomplete gear in the engaged state enters the idling state, and the incomplete gear in the idling state enters the engaged state. The rack is fixedly installed on the scrubbing unit and meshes with the forward incomplete gear and the reverse incomplete gear, but not with both at the same time. The above transmission realizes the reciprocating linear movement of the rack.

[0012] Optionally, the engagement of the driving gear and the driven gear is to realize the rotational movement of the worm; the engagement of the worm and the worm wheel is to adjust the direction of the axis of the driving adjusting gear and also to increase the output torque of the worm wheel shaft; the engagement of the driving adjusting gear and the driven adjusting gear is to adjust the position of the axis of the forward incomplete gear; the engagement of the forward rotating gear and the reverse rotating gear is to realize the forward rotation of the forward incomplete gear and the reverse incomplete gear reverse rotation; the engagement of the forward incomplete gear and the rack is to realize the positive linear movement of the rack and the half-turn engagement and half-turn free rotation of the forward incomplete gear; the engagement of the reverse incomplete gear and the rack is to realize the negative linear movement of the rack and the half-turn engagement and half-turn free rotation of the reverse incomplete gear; the alternating engagement of the forward incomplete gear and the reverse incomplete gear with the rack is to realize the reciprocating linear movement of the rack.

[0013] Optionally, a plurality of threaded holes are evenly spaced along the center line of the limiting base plate. These threaded holes are used to achieve threaded connection with the adjusting bolt. The adjusting bolt has a thread divided into two sections. The upper section is adjacent to the nut and is threadedly connected to the threaded hole on the limiting base plate. The lower section is separated from the upper section by a section with a diameter smaller than the minor diameter of the thread. The threads of the lower section and the upper section have opposite directions of rotation. Rotating the adjusting bolt in the forward direction allows the components connected to the upper and lower threaded sections to move towards each other, while rotating the adjusting bolt in the reverse direction allows the components connected to the upper and lower threaded sections to move in opposite directions. The straight line Two bearings are provided, respectively installed at both ends of the limiting plate, with their axes perpendicular to a straight line determined by the centers of several threaded holes; the support rods have circular holes at both ends, one end connected to the end face of the linear bearing, and the other end connected to the bent rod, with a total of four rods symmetrically distributed, and a stop wheel installed between each pair of support rods; the stop wheel has a ratchet mechanism inside, allowing rotation only in one direction and preventing reverse rotation; the bent rods are elliptical in shape, with circular holes at both ends, each connected to the support rod, with a total of two rods; the scrubbing brush consists of a brush base, bristles, and stop strips. The brush bristles and the stop strips are respectively installed on two opposite surfaces of the brush base. The brush bristles are evenly distributed on both inner sides, and the stop strips are arranged on both sides of the surface, protruding from the surface of the brush base. The roller is installed on the scrubbing brush support frame. Several scrubbing brush support frames are provided, with two of each size, symmetrically distributed from the middle to both ends in ascending order of size. They are limited by the inner and outer limit strips. A threaded hole is opened at the center of the top of each support frame, which is threaded to the lower part of the adjusting bolt. The lower end is divided into four parts, and the bottom of each part is set to be horizontal. The short shafts are arranged in pairs facing each other, and the rollers are mounted on the short shafts. Several inner limiting strips are provided, the same number as the threaded holes on the limiting base plate, and are installed on both sides of the threaded holes on the limiting base plate. The further away from the central threaded hole, the longer the length of the inner limiting strip. Several outer limiting strips are provided, the same number as the inner limiting strips, and are installed on the same side of the limiting base plate as the inner limiting strips. They are distributed on both sides of the limiting base plate outside the inner limiting strips, aligned with the inner limiting strips respectively, and the lengths of the outer limiting strips and inner limiting strips at the aligned points are the same.

[0014] The aforementioned device for automatically cleaning key parts of a rubber dam using the potential energy of river water uses components that are well-known to those skilled in the art and can be obtained through known means. The connection methods for these components are also mastered by those skilled in the art.

[0015] Compared with the prior art, the beneficial effects of this utility model are: (1) This utility model is a device for automatically cleaning key parts of rubber dams by utilizing the potential energy of river water. It realizes automatic cleaning instead of manual cleaning, fills the gap in automatic cleaning of rubber dams, greatly reduces the safety risks and labor intensity of cleaning personnel, and also reduces the cleaning difficulty of key parts of rubber dams.

[0016] (2) The above scheme uses the gravitational potential energy of the river water to drive the scrubbing brush to move back and forth in a straight line. Compared with the use of fuel, electricity and other energy sources, there is no energy cost, which greatly saves costs.

[0017] (3) In the above scheme, the distance between the scrubbing brush and the surface of the key parts of the rubber dam can be adjusted to ensure that the bristles on the scrubbing brush are always in contact with the surface of the rubber dam, and to ensure that the entire area covered by the scrubbing brush can be scrubbed without any situation where it cannot be scrubbed.

[0018] (4) In the above scheme, the scrubbing brush always makes a reciprocating linear motion, which can ensure that the scrubbing efficiency is maximized during the scrubbing process and there is no idle stroke. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of a device for automatically cleaning key parts of a rubber dam using the potential energy of river water, according to this utility model.

[0021] Figure 2 This is a front view of a device for automatically cleaning key parts of a rubber dam using the potential energy of river water, according to this utility model.

[0022] Figure 3 This is a left view of a device for automatically cleaning key parts of a rubber dam using the potential energy of river water, according to this utility model.

[0023] Figure 4 This is a schematic diagram of the impeller and impeller shaft in the drive unit.

[0024] Figure 5 This is a schematic diagram showing the structural and positional relationship between the impeller cover and the water inlet channel in the drive unit.

[0025] Figure 6 This is a schematic diagram of the scrubbing unit structure.

[0026] Figure 7 Right view of the cleaning unit.

[0027] Figure 8 This is a schematic diagram of the support frame structure for the scrubbing brush.

[0028] Figure 9 This is a schematic diagram of the structure of a scrubbing brush in its working state.

[0029] In the diagram: 1. Water supply pipe, 2. Frame, 3. Drive unit, 4. Transmission unit, 5. Scrubbing unit, 20. Traveling wheel, 21. Rear column, 22. Middle column, 23. Front column, 24. Bottom support plate, 25. Lower support plate, 26. Middle support plate, 27. Upper support plate, 28. Top support frame, 29. Cylindrical guide rail, 30. Base, 31. Impeller shaft, 32. Impeller, 33. Impeller cover, 34. Water inlet, 35. Water inlet channel, 411. Driving gear, 412. Driven gear, 421. Worm gear, 422. Worm wheel, 431. Driving adjustment gear 432. Driven adjusting gear; 441. Forward rotating gear; 442. Reverse rotating gear; 451. Forward incomplete gear; 452. Reverse incomplete gear; 46. Rack; 50. Linear bearing; 51. Limiting base plate; 52. Support rod; 53. Bent rod; 54. Large idler roller; 55. Scrubbing brush; 56. Scrubbing brush support frame; 57. Adjusting bolt; 58. Inner limiting strip; 59. Outer limiting strip; 520. Anti-reverse wheel; 550. Brush base; 551. Brush bristles; 552. Stop bar; 560. Idler roller; 561. Support shaft; 562. Threaded hole. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of this utility model.

[0031] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "front", "middle", "rear", "bottom", "top", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] like Figure 1 As shown, the present invention discloses an automatic scrubbing device for key parts of a rubber dam that utilizes the potential energy of river water. The device includes a water supply pipe 1, a frame 2, a drive unit 3, a transmission unit 4, and a scrubbing unit 5. The water supply pipe 1 inputs the river water impounded by the rubber dam into the drive unit 3. Under the action of the gravitational potential energy of the river water, the impeller shaft 31 of the drive unit 3 rotates. Through the power transmission unit 4, the power is transmitted to drive the scrubbing unit 5 to perform reciprocating linear motion. The scrubbing brush 55 in the scrubbing unit scrubs the key parts of the rubber dam.

[0035] like Figure 1 , 3 As shown, one end of the water pipe 1 is connected to the drive unit 3, and the other end is submerged in the river water impounded by the rubber dam. The height of the submerged end is higher than the height of the connection between the water pipe 1 and the drive unit 3. According to the siphon principle, the water pipe 1 can continuously transport river water to the drive unit 3, and the water transport process has no energy cost.

[0036] like Figure 1 , Figure 2 , Figure 3 As shown, the frame includes traveling wheels 20, rear uprights 21, middle uprights 22, front uprights 23, bottom support plate 24, lower support plate 25, middle support plate 26, upper support plate 27, top support frame 28, and cylindrical guide rails 29.

[0037] The bottom support plate 24, lower support plate 25, middle support plate 26, upper support plate 27, and top support frame 28 are placed horizontally in order from bottom to top, with consistent width on both sides and aligned left and right ends. The rear column 21, middle column 22, and front column 23 form one set, arranged in the rear, middle, and front positions, with one set on each side, for a total of two sets. In one set, the rear column 21 and front column 23 are connected to the left end of the bottom support plate 24, lower support plate 25, middle support plate 26, upper support plate 27, and top support frame. In the other set, the rear column 21 and front column 23 are connected to the right end of the bottom support plate 24, lower support plate 25, middle support plate 26, upper support plate 27, and top support frame. The middle column 22 in both sets is connected to the left and right ends of the bottom support plate 24 and lower support plate 25, respectively.

[0038] Two cylindrical guide rails 29 are provided. One cylindrical guide rail 29 is installed between the tops of the two rear columns 21, and the other cylindrical guide rail 29 is located between the middle of the two rear columns 21. Both ends of the cylindrical guide rail 29 are connected to the rear columns 21. One end of the cylindrical guide rail 29 is installed on the left rear column 21, and the other end is installed on the right rear column 21.

[0039] The walking wheels 20 are installed on the bottom support plate 24, which serve as support and walking functions. This allows the device of this utility model, which uses the potential energy of river water to automatically clean the key parts of the rubber dam, to move to any part along the length of the rubber dam. The cleaning of the key parts of the entire rubber dam adopts a segmented cleaning mode. This embodiment is only an embodiment of this utility model cleaning on one segment.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the base 30 is mounted on the bottom support plate 24, and the impeller cover 33 is mounted on the base 30. The top of the impeller cover 33 has a water inlet, which is connected to the water inlet channel 35. The water inlet channel 35 is equipped with a water inlet 34, which is connected to the water supply pipe 1. The impeller 32 is mounted on the impeller shaft 31, and the impeller shaft 31 is mounted on the impeller cover 33. The extended end of the impeller shaft 31 is equipped with a drive gear 411. The river water transported by the water supply pipe 1 enters the water inlet channel 35 from both sides through the water inlet 34, and then flows into the impeller cover 33 from the water inlet channel 35. The river water entering the impeller cover 33 drives the impeller 32 to rotate. Since the river water flows continuously into the impeller cover 33, the impeller shaft 31 rotates continuously, and the drive gear 411 rotates continuously.

[0041] like Figure 2 , Figure 3As shown, the driving gear 411 meshes with the driven gear 412. Both are the same size and rotate at constant speeds. The driven gear 412 is mounted on the worm shaft 421. The worm 421 and driven gear 412 rotate synchronously. The worm 421 meshes with the worm wheel 422. For every revolution of the worm 421, the worm wheel 422 rotates one tooth. The worm wheel 422 is designed with 25 teeth. The worm wheel speed is reduced to one twenty-fifth of the worm speed. Without considering power loss, the torque is increased to twenty-five times the worm torque. The worm wheel 422 and the driving adjusting gear 431 are mounted on the same... On one shaft, both rotate synchronously. The driving adjusting gear 431 meshes with the driven adjusting gear 432; both are the same size and rotate at constant speeds. The meshing of the driving adjusting gear 431 and driven adjusting gear 432 determines the axial position of the driven adjusting gear 432. The forward rotating gear 441 and driven adjusting gear 432 are mounted on the same shaft and rotate synchronously. The forward rotating gear 441 meshes with the reverse rotating gear 442; both are the same size, so they rotate at the same speed but in opposite directions. A counter-rotating gear 442 is also mounted on the rotating shaft of the forward rotating gear 441. The incomplete gear 451 rotates synchronously with the forward gear 442. A reverse incomplete gear 452 is mounted on the shaft of the reverse rotating gear 442, and both rotate synchronously. The forward incomplete gear 451 and the reverse incomplete gear 452 achieve the same rotational speed but opposite directions of rotation. Their pitch circle diameters are the same, smaller than the pitch circle diameters of the forward and reverse rotating gears, and differ by more than 2.5 times the module of the forward rotating gear 441 or the module of the forward incomplete gear 451 (whichever is larger). Thus, they neither mesh nor interfere with each other. Both are in harmony with... The rack 46 meshes with the forward incomplete gear 451 and the reverse incomplete gear 452, both of which have half the number of teeth of a complete gear with the same pitch circle diameter. One of them is in a meshing state while the other is in a disengaged state, thus achieving alternating meshing with the rack 46. Under the action of the forward incomplete gear 451 and the reverse incomplete gear 452, the rack 46 achieves reciprocating linear motion. The rack 46 is mounted on the scrubbing unit 5, so the scrubbing unit 5 reciprocates linearly with the rack 46, realizing the function of continuously reciprocating scrubbing the key parts of the rubber dam.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 6 As shown, the rack 46 is mounted on the limiting base plate 51. Each end of the limiting base plate is connected to a linear bearing 50. The two linear bearings 50 are respectively mounted on two cylindrical guide rails 29, and the two are slidably connected. Under the constraint of the cylindrical guide rails 29 and driven by the rack 46, the entire scrubbing unit 5 realizes reciprocating linear motion along the axis of the cylindrical guide rails 29.

[0043] like Figure 6 , Figure 7As shown, the inner limiting strip 58 is installed in the middle part of the limiting base plate 51, located on both sides of the center line of the limiting base plate 51 and close to the center line. The outer limiting strip 59 is installed on both sides of the limiting base plate 51. The number of inner limiting strips 58 and outer limiting strips 59 is the same, and they are parallel to each other. The inner limiting strips 58 and outer limiting strips 59 of the same length are aligned and arranged, with the middle part being the shortest and the closer to the ends being the longer.

[0044] There are four support rods 52, symmetrically distributed, with round holes at both ends. One end is connected to the end of the linear bearing 50, and the other end is connected to the bent rod 53. A stop wheel 520 is installed between each pair of support rods 52. The stop wheel 520 has a ratchet mechanism inside and cannot be reversed. There are two bent rods 53, which are elliptical in shape, with round holes at both ends, and both are connected to the other end of the support rod 52.

[0045] like Figure 6 , Figure 7 , Figure 8 As shown, several scrubbing brush support frames 56 are provided, with the same number of limiting grooves as the inner and outer limiting strips. They are arranged from the middle to both ends in order of increasing length, and are symmetrically distributed. They are all limited by the inner limiting strip 58 and the outer limiting strip 59. A threaded hole 562 is provided at the center of the upper end. The threaded hole 562 is threaded to the lower threaded part of the adjusting bolt 57. The lower end is divided into 4 parts, and each part has a transverse support shaft 561 at the bottom. The support shafts 561 are opposite to each other, and rollers 560 are installed on the support shafts 561. The rollers 560 are used to support the scrubbing brush 55. The upper threaded part of the adjusting bolt 57 is threaded to the threaded hole on the limiting plate 51. The direction of the thread is opposite to that of the lower thread, which can make the scrubbing brush support frame 56 move closer to and further away from the limiting plate 51, thereby adjusting the distance of the roller 560 from the key part of the rubber dam.

[0046] like Figure 6 , Figure 7 , Figure 9 As shown, there are two scrubbing brushes 55, symmetrically distributed. Each brush consists of a brush base 550, bristles 551, and stop bars 552. The bristles 551 and stop bars 552 are mounted on the brush base 550. The shape of the brush base 550 is determined by the shape formed by the idler roller 560. The bristles 551 are vertically mounted on the brush base 550. The stop bars 552 have a rectangular cross-section and are symmetrically mounted on the two sides of the brush base 550 on the side opposite to the bristles 551 in the width direction. This is to prevent the scrubbing brushes 55 from slipping off the idler roller 560. The two ends of the scrubbing brushes 55 in the length direction are connected to the anti-reverse wheel 520. The anti-reverse wheel 520 can only rotate in one direction, so rotating the anti-reverse wheel can keep the scrubbing brushes 55 in a taut state.

[0047] The working principle of the technical solution provided by this utility model is as follows: First, the inside of the water supply pipe 1 is filled with water, and both ends are temporarily blocked. One end is completely submerged in the river water impounded by the rubber dam, and the other end is installed on the water inlet 34 of the drive unit 3, ensuring that the water level is higher than the height of the water inlet 34. At the same time, the temporary blocking measures at both ends of the water supply pipe 1 are lifted. According to the siphon principle, the river water will continuously enter the water inlet channel 35. The water inlet channel 35 is connected to the inside of the impeller cover 33. The connection point is located on one side adjacent to the center line of the impeller cover 33. The diameter of the impeller 32 is the same as the inner diameter of the impeller cover 33. The river water entering the impeller cover 33 pushes the impeller 32 on one side downward under the action of gravity. The rotation of the impeller shaft 31, under the action of the impeller 32, causes the drive gear 411 mounted on the extended end of the impeller shaft to rotate. The drive gear 411 drives the driven gear 412 meshing with it. Both have the same diameter, and the driven gear 412 rotates in the opposite direction at a constant speed. The driven gear 412 is mounted on the worm shaft, and the worm 421 rotates in the same direction and at the same speed. The worm 421 drives the 25-tooth worm wheel 422, causing the speed of the worm wheel 422 to decrease to one-twenty-fifth of the speed of the worm 421, and the torque of the worm wheel 422 to increase to twenty-five times that of the worm 421. The direction of rotation of the worm wheel 422 changes to be opposite to that of the original worm 421. In the vertical direction of the rotating shaft, the driving adjusting gear 431 and the worm gear 422 are mounted on the same shaft. The driving adjusting gear 431 meshes with the driven adjusting gear 432, which adjusts the axial position of the driven adjusting gear 432. A forward rotating gear 441 and a forward partially rotating gear 451 are also mounted on the shaft where the driven adjusting gear 432 is located. This axial position is precisely the appropriate position required by the forward rotating gear 441 and the forward partially rotating gear 451. The forward rotating gear 441 meshes with the reverse rotating gear 442; they are the same size but rotate in opposite directions. A reverse partially rotating gear 452 is mounted on the shaft where the reverse rotating gear 442 is located. The forward partially rotating gear 451 and the reverse partially rotating gear 452... Gear 452 is identical, but its pitch circle diameter is smaller than that of the forward-rotating gear 441. The two do not mesh and do not interfere with each other. Both have teeth within a continuous 180° range and no teeth within another continuous 180° range. Both mesh with rack 46, but not simultaneously. That is, the forward incomplete gear 451 meshes with rack 46 within a 180° rotation range, while the reverse incomplete gear 452 disengages from rack 46. Then, the reverse incomplete gear 452 meshes with rack 46 within a 180° rotation range, while the forward incomplete gear 451 disengages from rack 46, and so on. Rack 46 is always in a meshed state, realizing reciprocating linear movement.The rack 46 is mounted on the scrubbing unit 5. The scrubbing unit 5 is limited by the cylindrical guide rail 29 and can only move linearly along the axis of the cylindrical guide rail 29. The axis of the cylindrical guide rail 29 is parallel to the pitch line of the rack 46. Therefore, the scrubbing unit 5 performs reciprocating linear motion under the drive of the rack 46. The distance between the scrubbing brush support frame 56 and the rubber dam surface is adjusted by adjusting the adjusting bolt 57. The roller 560 is mounted on the scrubbing brush support frame 56, and the scrubbing brush 55 is supported by the roller 560. Therefore, the adjusting bolt 57 adjusts the distance between the scrubbing brush 55 and the rubber dam surface. Adjusting several adjusting bolts 57 simultaneously ensures that the bristles 550 of the scrubbing brush 55 are in contact with the rubber dam surface. The ratchet mechanism inside the anti-reverse wheel 520 keeps the scrubbing brush 55 in a taut state. In this way, the reciprocating linear movement of the scrubbing brush 55 achieves continuous scrubbing of the key parts of the rubber dam.

[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A device for automatic scrubbing of critical parts of rubber dam by using potential energy of river water, characterized in that: include: The system consists of five parts: a water supply pipe, a frame, a drive unit, a transmission unit, and a scrubbing unit. One end of the water supply pipe is connected to the drive unit, and the other end is submerged in the water area intercepted by the rubber dam. The drive unit, transmission unit, and scrubbing unit are all mounted on the frame. The frame includes a front column, a middle column, a rear column, wheels, a bottom support plate, a lower support plate, a middle support plate, an upper support plate, a top support frame, and cylindrical guide rails connected together. There are two front columns and two rear columns, each connected to the bottom support plate, the lower support plate, the middle support plate, the upper support plate, and the top support frame. There are two middle columns, each connected to the bottom support plate and the lower support plate. There are two cylindrical guide rails, one at the top and one at the bottom, connected to the two rear columns. There are four wheels, which are mounted on the bottom support plate. The drive unit includes a base, an impeller shaft, an impeller, an impeller cover, a water inlet channel, and a water inlet, which realizes the conversion of the potential energy of the river water into the mechanical energy of rotational motion; The transmission unit includes a driving gear, a driven gear, a worm, a worm wheel, a driving adjusting gear, a driven adjusting gear, a forward rotating gear, a reverse rotating gear, a forward incomplete gear, a reverse incomplete gear, and a rack, to achieve power transmission. The scrubbing unit includes a limiting base plate, a linear bearing, a support rod, a bent rod, a backstop wheel, a large idler roller, an idler roller, a scrubbing brush, a scrubbing brush support frame, an adjusting bolt, an inner limiting strip, and an outer limiting strip. The scrubbing unit is in direct contact with the rubber dam and moves linearly back and forth on the surface of the key parts of the rubber dam to scrub the key parts of the rubber dam.

2. The device for automatically cleaning key parts of a rubber dam using the potential energy of river water according to claim 1, characterized in that: The bottom surface of the base is connected to the bottom support plate. The upper surface of the base is an arc surface for connecting with the impeller cover. The impeller cover is cylindrical with elongated holes at the top and bottom of the cylindrical surface. The top hole is the water inlet, and the bottom hole is the water outlet. The water inlet is connected to the water inlet channel, which is connected to the impeller cover at the water inlet and the two are interconnected. The water inlet channel has two circular inlets for connecting with the water supply pipe. The impeller cover is equipped with a coaxial impeller shaft, and the impeller is mounted on the impeller shaft. The gravity of the river water drives the impeller to rotate, and the impeller drives the impeller shaft to rotate.

3. The device for automatically scrubbing key parts of a rubber dam using the potential energy of river water according to claim 1, characterized in that: The driving gear is mounted on the impeller shaft and meshes with the driven gear. The driven gear is mounted on the worm, which meshes with the worm wheel. The worm wheel and the driving adjusting gear are mounted on the same shaft. The driving adjusting gear meshes with the driven adjusting gear. The driven adjusting gear and the forward rotating gear are mounted on the same shaft. The forward rotating gear meshes with the reverse rotating gear, and both are of the same size. The driven adjusting gear, the forward rotating gear, and the forward incomplete gear are mounted on the same shaft. The reverse rotating gear and the reverse incomplete gear are mounted on the same shaft. The forward incomplete gear and... The reverse incomplete gears are the same size and smaller than the forward and reverse rotating gears, and each has half the number of teeth of a complete gear of the same size. Both mesh with the rack. When one is engaged, the other is idling and not engaged. Both have the same angular velocity. Every 180° of rotation, their states are interchanged, that is, the incomplete gear in the engaged state enters the idling state, and the incomplete gear in the idling state enters the engaged state. The rack is fixedly mounted on the scrubbing unit and meshes with both the forward and reverse incomplete gears, but not with both at the same time. The above transmission realizes the reciprocating linear movement of the rack.

4. The device for automatically cleaning key parts of a rubber dam using the potential energy of river water according to claim 3, characterized in that: The engagement of the driving gear and the driven gear is to achieve the rotational motion of the worm; the engagement of the worm and the worm wheel is to adjust the direction of the axis of the driving adjusting gear and to increase the output torque of the worm wheel shaft; the engagement of the driving adjusting gear and the driven adjusting gear is to adjust the position of the axis of the forward incomplete gear; the engagement of the forward rotating gear and the reverse rotating gear is to achieve forward rotation of the forward incomplete gear and reverse rotation of the reverse incomplete gear; the engagement of the forward incomplete gear and the rack is to achieve positive linear movement of the rack and half-turn engagement and half-turn free rotation of the forward incomplete gear; the engagement of the reverse incomplete gear and the rack is to achieve negative linear movement of the rack and half-turn engagement and half-turn free rotation of the reverse incomplete gear; the alternating engagement of the forward incomplete gear and the reverse incomplete gear with the rack is to achieve reciprocating linear movement of the rack.

5. The device for automatically scrubbing key parts of a rubber dam using the potential energy of river water according to claim 1, characterized in that: The limiting base plate has a plurality of threaded holes evenly spaced along its center line. These threaded holes are used to achieve threaded connection with the adjusting bolt. The adjusting bolt has a threaded section divided into two parts. The upper part, adjacent to the nut, is threaded to the threaded hole on the limiting base plate. The lower part is a section with a diameter smaller than the minor diameter of the thread, which forms an optical axis between the upper and lower parts. The threads of the lower and upper parts rotate in opposite directions. Rotating the adjusting bolt in the forward direction allows the parts threaded to the upper and lower parts to move towards each other, while rotating the adjusting bolt in the reverse direction allows the parts threaded to the upper and lower parts to move in opposite directions. The linear bearing is provided with... Two support rods are installed at both ends of the limiting base plate, with their axes perpendicular to a straight line defined by the centers of several threaded holes. Each support rod has a circular hole at both ends, one end connected to the end face of the linear bearing, and the other end connected to the bent rod. There are four such rods, symmetrically distributed, with a stop wheel installed between each pair of support rods. The stop wheel has a ratchet mechanism inside, allowing rotation only in one direction and preventing reverse rotation. The bent rod is elliptical in shape, with circular holes at both ends, each connected to a support rod. There are two of these bent rods. The scrubbing brush consists of a brush base, bristles, and a stop bar. The bristles and the stop strips are respectively installed on two opposite surfaces of the brush base. The bristles are evenly distributed on both inner sides, and the stop strips are arranged on both sides of the surface, protruding from the surface of the brush base. The roller is installed on the scrubbing brush support frame. Several scrubbing brush support frames are provided, with two of each size, arranged symmetrically from the middle to both ends in ascending order of size. They are limited by the inner and outer limit strips. The upper end of each support frame has a threaded hole at the center of its top, which is threaded to the lower part of the adjusting bolt. The lower end is divided into four parts, with the bottom of each part being a short, horizontally oriented section. The shaft and the short shaft are opposite each other in pairs, and the roller is installed on the short shaft; the inner limiting strip is set in a plurality of pieces, the same number as the number of threaded holes on the limiting base plate, and is installed on both sides of the threaded holes on the limiting base plate. The further away from the center threaded hole, the longer the length of the inner limiting strip; the outer limiting strip is set in a plurality of pieces, the same number as the inner limiting strip, and is installed on the same side of the limiting base plate as the inner limiting strip. They are distributed on both sides of the limiting base plate outside the inner limiting strip, and are respectively aligned with the inner limiting strip. The length of the outer limiting strip and the inner limiting strip at the alignment point is the same.

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