A mobile vertical rake cleaner

Abstract

The present application relates to the technical field of hydraulic engineering equipment, in particular to a mobile vertical rake bucket trash cleaner, which comprises a rack, a support frame, a rake bucket, a counterweight mechanism and a traction mechanism. The mobile vertical rake bucket trash cleaner has a counterweight fixedly connected to the rake bucket, so that the rake bucket has a downward moving trend under the action of gravity. Even in the case of more trash on the water surface, the gravity is greater than the supporting force of the trash on the rake bucket, and the rake bucket can be smoothly moved to the bottom of the grating. In addition, the present application sets a counterweight bucket, which provides a power source for the rising of the rake bucket by using the gravity of the counterweight bucket in the case of less trash, and reduces the additional energy provided when the rake bucket rises. The present application solves the problem that the rake bucket cannot sink to the bottom of the grating in the case of more trash due to insufficient weight of the rake bucket in the prior art, and the problem of excessive energy required in the rising process of the rake bucket caused by the increase of the gravity of the rake bucket for the smooth descent of the rake bucket, resulting in energy waste.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic engineering equipment, in particular to a mobile vertical rake cleaning machine. BACKGROUND

[0002] The rake cleaning machine is a mechanical cleaning device for water treatment facilities, and is a key pretreatment device widely used in water supply and drainage engineering, sewage treatment plants, pump stations and water inlet of hydropower stations. Its core mission is to efficiently and continuously remove coarse suspended and floating solid impurities (such as branches, plastic bags, household garbage, and water plants) in the water flow, to protect the subsequent water pump, valve, pipeline and treatment structure from blockage and wear, and to ensure the smooth operation of the entire water treatment process. It is mainly composed of a rack, a grid, a slag baffle, a guide groove, a rake, a traction differential steel wire rope, a lifting mechanism and a differential mechanism. Its working principle usually includes four main stages: downward opening stage, rake closing and grabbing stage, upward slag scraping stage and top unloading stage. However, the existing rake cleaning device cannot accurately control the position of the debris, and has the problems of inconvenient control, serious energy waste and high cleaning cost.

[0003] Therefore, the mobile vertical rake cleaning machine is disclosed in Chinese Patent No. CN119266185A; the patent solves the problem of inconvenient adjustment by using an electrically controlled turnover structure design, and cuts and separates the pollutants; but the above-mentioned patent and the rake cleaning machine in the prior art cannot move smoothly to the bottom of the water surface when the rake is blocked by the pollutants during downward movement due to the small gravity of the rake, which affects the cleaning efficiency. However, simply increasing the gravity of the rake can overcome the support force of the pollutants and allow the rake to descend smoothly below the liquid surface under its own gravity, but the lifting mechanism needs to provide too much energy to drive the rake to rise, which wastes energy. SUMMARY

[0004] According to the deficiencies of the prior art, the present application provides a mobile vertical rake cleaning machine, which solves the problem of insufficient gravity of the rake in the prior art, which cannot sink to the bottom of the grid when there are many pollutants, and the problem of excessive energy consumption in the process of lifting and lowering the rake caused by increasing the gravity of the rake to make the rake descend smoothly.

[0005] The mobile vertical rake cleaning machine of the present application adopts the following technical scheme, which comprises:

[0006] A rack is fixedly connected to the rack, and a grid is inclinedly arranged on the rack, with the lower end of the grid located in front of the upper end; a support frame is slidably installed on the rack, and a sliding car is slidably arranged on the support frame in the inclined direction of the grid;

[0007] The rake is rotatably installed on the sliding vehicle; the rotation axis is horizontally arranged and extends in the left-right direction; the center of gravity of the rake is located below the rotation axis; in the initial state, a gap with a preset width exists between the lower end of the rake and the partition; when the rake rotates by a preset angle, the lower end of the rake abuts against the partition; the rake is connected with a differential assembly, which is used to drive the rake to rotate around the rotation axis;

[0008] The counterweight mechanism comprises a counterweight block and a counterweight barrel; the counterweight block is fixedly connected to the rake, and the center of gravity thereof is located below the rotation axis of the rake; the counterweight barrel is arranged at the rear side of the partition; a one-way water inlet valve and a drain opening are arranged on the counterweight barrel; the drain opening is provided with an unsealing structure; the unsealing structure has an open state and a closed state; when the unsealing structure is in the open state, water in the counterweight barrel flows out from the drain opening; when the unsealing structure is in the closed state, the drain opening is blocked.

[0009] The traction mechanism is used to drive the sliding vehicle and the counterweight barrel to ascend or descend, and the moving directions of the sliding vehicle and the counterweight barrel are opposite.

[0010] Optionally, the traction mechanism comprises a traction shaft, a transition shaft, first winding wheels and traction steel wires; the traction shaft and the transition shaft both extend in the left-right direction and are rotatably installed on the support frame; the traction shaft is connected with a traction motor, which is used to drive the traction shaft to rotate around its own axis; the transition shaft is located above the traction shaft; the first winding wheels are arranged in pairs and are spaced apart in the left-right direction; the distance between the two first winding wheels is equal to the width of the sliding vehicle; the first winding wheels are synchronously rotatably installed on the traction shaft; the traction steel wires are arranged in two roots; the two traction steel wires are wound around the two first winding wheels respectively; after passing through the transition shaft, the two traction steel wires are fixedly connected to the left and right ends of the sliding vehicle respectively; one end of the traction steel wire away from the sliding vehicle is fixedly connected to the counterweight barrel.

[0011] Optionally, the differential assembly comprises a differential steel wire, second winding wheels and a swing arm; the second winding wheels are arranged between the two first winding wheels and are synchronously rotatably installed on the traction shaft; one end of the swing arm is rotatably installed on the support frame and is connected with a swing motor, which is used to drive the swing arm to rotate; the other end of the swing arm is provided with a pulley, which is located between the second winding wheels and the transition shaft; the differential steel wire is wound around the second winding wheels by a preset number of turns, then passes through the pulley and the transition shaft in sequence, and is then fixedly connected to the rake.

[0012] Optionally, the collection mechanism comprises a cleaning plate and a collection box; the upper end of the cleaning plate is rotatably installed on the support frame; when the rake is located at the highest position, the lower end of the cleaning plate is in contact with the inner wall of the rake; the collection box is fixedly installed on the support frame and is located at the rear side of the support plate.

[0013] Optionally, the unsealing structure comprises an adjusting tube, an adjusting rod and a tension spring; the adjusting tube extends vertically, and the adjusting rod is in communication with the counterweight barrel; the adjusting tube comprises a thin section and a thick section, and the drainage opening is arranged on the thin section; the adjusting rod is coaxially arranged in the adjusting tube and movably mounted along the axis of the adjusting tube; the adjusting rod comprises a large-diameter section and a small-diameter section; the outer diameter of the large-diameter section is equal to the inner diameter of the thin section; in the initial state, the large-diameter section is located in the thick section, and the small-diameter section is located in the thin section; the upper end and the lower end of the adjusting rod extend out of the adjusting tube, and the adjusting tube and the adjusting rod are sealingly connected; the tension spring is sleeved on the adjusting rod, and the two ends of the tension spring are fixedly connected to the adjusting rod and the adjusting tube, respectively; and the differential cable is fixedly connected to the upper end of the adjusting rod away from the rake.

[0014] Optionally, the drainage opening is provided with an adjusting valve for changing the size of the drainage opening.

[0015] Optionally, a support arm is fixedly connected to the support frame and located below the traction shaft; after winding around the first winding wheel, the traction cable passes through the support arm and is fixedly connected to the counterweight barrel.

[0016] Optionally, the first winding wheel comprises a large winding wheel and a small winding wheel; the large winding wheel is synchronously rotatably mounted on the traction shaft, and the small winding wheel is coaxially and fixedly connected to the large winding wheel; the outer diameter of the small winding wheel is smaller than that of the large winding wheel; one end of the traction cable is connected to the rake after winding around the large winding wheel for a preset number of turns, and the other end of the traction cable is connected to the counterweight barrel after winding around the small winding wheel for a preset number of turns.

[0017] Optionally, the drainage opening is arranged on the side of the counterweight barrel facing the barrier.

[0018] Optionally, at least two barriers are arranged along the left-right direction; a slide is arranged on the support plate and extends left and right, and the support frame is slidingly mounted on the slide.

[0019] The mobile vertical rake cleaner has the following advantages: the rake is fixedly connected with the counterweight, so the rake has a downward movement tendency under the action of gravity; even when there are many pollutants on the water surface, the gravity is greater than the supporting force of the pollutants on the rake, so the rake can be smoothly moved to the bottom of the barrier; in addition, the counterweight barrel is arranged to provide a power source for the upward movement of the rake when there are few pollutants, thereby reducing the additional energy provided when the rake moves upward; the problems in the prior art that the rake cannot sink to the bottom of the barrier when there are many pollutants due to insufficient weight of the rake, and that the energy required during the upward movement of the rake is excessive due to the increased weight of the rake to facilitate the downward movement of the rake, thereby causing energy waste, are solved.

[0020] Furthermore, this invention utilizes the principle of communicating vessels to adaptively adjust the weight of the counterweight bucket according to the amount of debris accumulated. The water in the counterweight bucket is gradually discharged as the rake bucket moves downwards, thereby reducing the additional energy required for the rake bucket's downward movement and further addressing the problem of energy waste. In addition, during the cleaning process, the water flow generates a thrust on the counterweight bucket and the rake bucket. When there is little debris, this invention utilizes the thrust of the water flow on the counterweight bucket to offset the additional frictional force generated by the water flow on the rake bucket, further assisting the rake bucket's upward movement. When there is a large amount of debris, the structure of this invention reduces the thrust of the water flow on the counterweight bucket, preventing it from affecting the downward movement of the rake bucket.

[0021] Furthermore, by installing a regulating valve at the drain outlet, the present invention reduces the drainage volume of the counterweight bucket when the overall water level is low. This allows the counterweight bucket to provide greater pulling force when the rake bucket moves upward, enabling the rake bucket to move the waste upward with less additional power. In addition, the present invention positions the drain outlet of the counterweight bucket on the side facing the grid. When the drain outlet is not blocked, the water in the counterweight bucket is discharged outward. Since the drain outlet faces the grid, the liquid in the counterweight bucket can rinse the grid from back to front when it is discharged, thus cleaning the grid. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of a mobile vertical rake bucket cleaning machine according to the present invention;

[0024] Figure 2 This is a front view of a mobile vertical rake bucket cleaning machine according to the present invention;

[0025] Figure 3 for Figure 2 Enlarged view at point W;

[0026] Figure 4 for Figure 2 Enlarged view at point X;

[0027] Figure 5 for Figure 2 Sectional view of section AA;

[0028] Figure 6 for Figure 5 Enlarged view at point Y;

[0029] Figure 7 forFigure 5 Structure at Z in the state of the rake down;

[0030] Figure 8 For Figure 5 Structure at Z in the state of the rake up.

[0031] In the figure:

[0032] 100, frame; 110, support plate; 111, slide; 120, pile foundation; 130, fence;

[0033] 200, support frame; 210, sliding car; 220, cleaning plate; 230, support arm;

[0034] 300, rake; 310, swing arm; 311, pulley; 320, second winding wheel; 330, differential cable;

[0035] 400, counterweight mechanism; 410, counterweight; 420, counterweight barrel; 421, one-way water inlet valve; 422, drain; 430, unsealing structure; 431, tension spring; 432, thin diameter section; 433, thick diameter section; 434, large diameter section; 435, small diameter section; 436, adjusting valve;

[0036] 500, traction mechanism; 510, traction cable; 520, traction shaft; 530, transition shaft; 540, first winding wheel; 541, large winding wheel; 542, small winding wheel. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0038] As Figures 1 to 8 shown, the mobile vertical rake cleaner provided by the embodiments of the present application comprises a frame 100, a support frame 200, a rake 300, a counterweight mechanism 400 and a traction mechanism 500.

[0039] The frame 100 comprises a support plate 110 and a plurality of pile foundations 120, and the plurality of pile foundations 120 are arranged at intervals left and right; the support plate 110 is horizontally arranged and fixedly connected to the upper ends of the pile foundations 120; a fence 130 is fixedly connected between adjacent two pile foundations 120; the fence 130 is arranged obliquely, and the lower end of the fence 130 is located at the front side of the upper end; with reference to Figure 1The two spaced grids 130 are arranged along the left-right direction; the support plate 110 is provided with a slide 111 extending along the left-right direction;

[0040] The support frame 200 is slidably arranged on the slide 111, and is fixedly connected with an inclined support plate, the front end surface of the support plate is coplanar with the front end surface of the grid 130; the support frame 200 is slidably arranged with a sliding vehicle 210, the sliding vehicle 210 is located at the front side of the grid 130 and is arranged along the inclined direction of the grid 130;

[0041] The harrow 300 is rotatably arranged on the sliding vehicle 210, and the rotation axis is horizontally arranged and extends along the left-right direction; the center of gravity of the harrow 300 is located below the rotation axis; in the initial state, there is a gap with a preset width between the lower end of the harrow 300 and the grid 130, as shown in Figure 7 ; when the harrow 300 rotates by a preset angle, the lower end of the harrow 300 abuts against the grid 130, as shown in Figure 8 ; the harrow 300 and the grid 130 are both provided with through holes for liquid to pass through; the harrow 300 is connected with a differential assembly, the differential assembly is used to drive the harrow 300 to rotate around the rotation axis; the support frame 200 is provided with a collecting mechanism, the collecting mechanism is used to push out and collect the dirt in the harrow 300; the collecting mechanism comprises a cleaning plate 220 and a collecting box; the upper end of the cleaning plate 220 is rotatably arranged on the support frame 200, and the lower end of the cleaning plate 220 is in contact with the inner wall of the harrow 300 when the harrow 300 is at the highest position; the collecting box is fixedly arranged on the support frame 200 and is located at the rear side of the support plate;

[0042] The counterweight mechanism 400 comprises a counterweight block 410 and a counterweight barrel 420; the counterweight block 410 is fixedly connected to the harrow 300, and the center of gravity is located below the rotation axis of the harrow 300; the counterweight barrel 420 is arranged at the rear side of the grid 130; the counterweight barrel 420 is provided with a one-way water inlet valve 421 and a drain 422; the drain 422 is provided with an unsealing structure 430, the unsealing structure 430 has an open state and a closed state; when the unsealing structure 430 is in the open state, the water in the counterweight barrel 420 flows out from the drain 422; when the unsealing structure 430 is in the closed state, the drain 422 is blocked;

[0043] The traction mechanism 500 is used to drive the sliding vehicle 210 to ascend or descend, and is used to drive the counterweight barrel 420 to ascend when the harrow 300 descends, and is used to drive the counterweight barrel 420 to descend when the harrow 300 ascends.

[0044] When the trash is cleaned, the support frame 200 is moved in the left-right direction until the left and right sides of the support plate are flush with the left and right sides of the grate 130, and then the trash is cleaned. When the trash is less, the water level difference before and after the grate 130 is small. In this case, during the downward movement of the rake 300, the differential assembly drives the rake 300 to rotate, so that the lower end of the rake 300 is away from the grate 130, and a gap is formed between the lower end of the rake 300 and the grate 130. Then the traction mechanism 500 drives the sliding car 210 and the rake 300 to descend synchronously, and in this process, the counterweight bucket 420 moves upward; after the rake 300 contacts the water surface, as the rake 300 continues to descend, the trash on the water surface enters the rake 300 from the gap between the rake 300 and the grate 130; during the upward movement of the counterweight bucket 420, the unsealing structure 430 is switched to the open state, and when the liquid level in the counterweight bucket 420 is higher than the liquid level behind the grate 130, the water in the counterweight bucket 420 flows out through the drain 422, the weight of the counterweight bucket 420 and the water in it decreases, thereby increasing the tension difference at both ends of the traction cable 510, and when the rake 300 moves downward, the weight of the rake 300 itself and the counterweight 410 serves as the main power source, and the traction motor only needs to provide less kinetic energy, so that the rake 300 can move to the bottom of the grate 130; under the premise of completing the trash cleaning work, energy is saved.

[0045] When the rake 300 moves to the bottom of the grate 130, the differential assembly drives the rake 300 to rotate in the opposite direction, and the lower end of the rake 300 abuts against the grate 130; the trash is left between the rake 300 and the grate 130. At the same time, the unsealing structure 430 is switched to the closed state, the drain 422 is blocked, and the water in the counterweight bucket 420 is no longer discharged. Then the traction mechanism 500 moves the rake 300 upward, and at the same time the counterweight bucket 420 moves downward, the water behind the grate 130 enters the counterweight bucket 420 through the one-way inlet valve 421, the weight of the counterweight bucket 420 increases, thereby assisting the upward movement of the rake 300, and energy is saved.

[0046] After the rake 300 rises to the preset height, the lower end of the cleaning plate 220 contacts the inner wall of the rake 300; at this time, the cleaning plate 220 is rotated to move the trash in the rake 300 to the collection box.

[0047] When there is more dirt, the water level difference before and after the grate 130 is larger. Due to the principle of the communicating vessel, the liquid level in the counterweight barrel 420 is lower, and the total weight of the counterweight barrel 420 and the water inside is smaller. Compared with the case where there is less dirt, the pulling force of the counterweight barrel 420 on the traction cable 510 is smaller, so that the rake 300 is driven by the gravity of the rake 300 itself, the gravity of the counterweight block 410 and the traction mechanism 500 to move downward smoothly. Compared with the existing technology, since the rake 300 is fixedly connected with the counterweight block 410 in the present application, the rake 300 has a downward movement tendency under the action of gravity. Even in the case where there is more dirt on the water surface, the gravity is greater than the supporting force of the dirt on the rake 300, and the rake 300 can move smoothly to the bottom of the grate 130. In addition, the present application provides a power source for the upward movement of the rake 300 by setting the counterweight barrel 420 and using the gravity of the counterweight barrel 420 to reduce the additional energy provided when the rake 300 moves upward. During the downward movement of the rake 300, the weight of the counterweight barrel 420 gradually decreases, thereby reducing the additional energy provided when the counterweight barrel 420 moves upward (i.e. the rake 300 moves downward). The present application solves the problem that the rake 300 cannot sink to the bottom of the grate 130 when there is more dirt due to insufficient weight of the rake 300 in the prior art, and the problem of excessive energy waste caused by excessive additional energy provided during the upward and downward movement of the rake 300 in order to make the rake 300 move downward smoothly.

[0048] In a further embodiment, the traction mechanism 500 includes a traction cable 510, a traction shaft 520, a transition shaft 530 and a first winding wheel 540; the traction shaft 520 and the transition shaft 530 both extend left and right and are rotatably installed on the support frame 200, the traction shaft 520 is connected with a traction motor, and the traction motor drives the traction shaft 520 to rotate around its axis; the transition shaft 530 is located above the traction shaft 520; the first winding wheel 540 is provided with two, which are arranged left and right with a distance equal to the width of the sliding car 210; the first winding wheel 540 is synchronously rotatably installed on the traction shaft 520; the traction cable 510 is provided with two, and the two traction cables 510 are respectively wound around the two first winding wheels 540, and after passing through the transition shaft 530, the two traction cables 510 are respectively fixedly connected to the left and right ends of the sliding car 210, and the end of the traction cable 510 away from the sliding car 210 is fixedly connected to the counterweight barrel 420.

[0049] The differential assembly comprises a swing arm 310, a second winding wheel 320 and a differential cable 330; the second winding wheel 320 is arranged between the two first winding wheels 540 and is synchronously rotatably installed on the traction shaft 520; one end of the swing arm 310 is rotatably installed on the support frame 200 and is connected with a swing motor, which is used to drive the swing arm 310 to rotate; the other end of the swing arm 310 is provided with a pulley 311, which is located between the second winding wheel 320 and the transition shaft 530; the differential cable 330 is wound around the second winding wheel 320 for a preset number of turns, is sequentially wound around the pulley 311 and the transition shaft 530, and is then fixedly connected to the rake 300.

[0050] With reference to Figure 5 , the swing arm 310 is driven by the swing motor to rotate counterclockwise, thereby driving the differential cable 330 between the second winding wheel 320 and the transition shaft 530 to move away from the initial position, the length of the differential cable 330 between the second winding wheel 320 and the transition shaft 530 is increased, the differential cable 330 pulls the rake 300 upward, the rake 300 is driven to rotate under the action of the pulling force, thereby making the lower end of the rake 300 move away from the grate 130, and further making the dirt on the water surface enter the gap between the rake 300 and the grate 130 when the rake 300 moves downward;

[0051] Then the traction motor is started, the traction motor drives the traction shaft 520 to rotate, the traction shaft 520 drives the first winding wheel 540 and the second winding wheel 320 to synchronously rotate, thereby making the traction cable 510 and the differential cable 330 drive the sliding car 210 and the rake 300 to move downward around one end of the transition shaft 530, and the end of the traction cable 510 connected with the counterweight bucket 420 drives the counterweight bucket 420 to move upward; in the above process, the transition shaft 530 is driven to rotate under the action of the friction between the traction cable 510 and the transition shaft 530 and the differential cable 330 and the transition shaft 530. After the rake 300 moves to the bottom of the grate 130, the swing motor drives the swing arm 310 to rotate clockwise, the length of the differential cable 330 between the second winding wheel 320 and the transition shaft 530 is reduced, the differential cable 330 no longer provides upward pulling force to the rake 300, the rake 300 is driven to rotate under the action of its own gravity and the gravity of the counterweight 410, and the lower end of the rake 300 abuts against the grate 130. The dirt is left between the rake 300 and the grate 130. Then the traction motor is started to reversely rotate, the traction motor drives the traction shaft 520 to reversely rotate, the traction shaft 520 drives the first winding wheel 540 and the second winding wheel 320 to synchronously reversely rotate, thereby making the end of the traction cable 510 connected with the counterweight bucket 420 to be released from the first winding wheel 540 and drive the counterweight bucket 420 to move downward, and the traction cable 510 and the differential cable 330 are wound around the first winding wheel 540 and the second winding wheel 320 respectively around one end of the transition shaft 530, and drive the sliding car 210 and the rake 300 to move upward, thereby completing the dirt cleaning work.

[0052] In a further embodiment, the unsealing structure 430 comprises an adjusting tube, an adjusting rod and a tension spring 431; the adjusting tube extends vertically, the adjusting rod communicates with the counterweight barrel 420; the adjusting tube comprises a thin section 432 and a thick section 433, the drainage port 422 is arranged on the thin section 432; the adjusting rod is coaxially arranged in the adjusting tube and is movably mounted along its own axis in the adjusting tube; the adjusting rod comprises a large section 434 and a small section 435; the outer diameter of the large section 434 is equal to the inner wall diameter of the thin section 432; in the initial state, the large section 434 is located in the thick section 433 and the small section 435 is located in the thin section 432; the upper end and the lower end of the adjusting rod extend out of the adjusting tube, and the adjusting tube and the adjusting rod are sealingly connected; the tension spring 431 is sleeved on the adjusting rod, and the two ends of the tension spring 431 are fixedly connected to the adjusting rod and the adjusting tube, respectively; one end of the differential steel cable 330 away from the rake 300 is fixedly connected to the upper end of the adjusting rod.

[0053] In the process of moving the rake 300 downward, referring to Figure 5 , the swing arm 310 rotates counterclockwise under the drive of the swing motor, the length of the differential steel cable 330 between the second winding wheel 320 and the transition shaft 530 increases, one end of the differential steel cable 330 pulls the rake 300 upward, and the other end pulls the adjusting rod upward; the adjusting rod moves upward under the pulling force of the differential steel cable 330, and in the process of moving the adjusting rod, the tension spring 431 is stretched to store energy; when the large section 434 moves from the thin section 432 to the thick section 433, the large section 434 no longer blocks the drainage port 422, and the water in the counterweight barrel 420 flows out through the drainage port 422, thereby reducing the gravity of the counterweight barrel 420 and the water therein, so that the difference in pulling force at the two ends of the traction steel cable 510 increases, and thus when the rake 300 moves downward, the gravity of the rake 300 and the counterweight 410 serves as the main power source, and the traction motor only needs to provide less kinetic energy, thereby saving energy under the premise of completing the cleaning work.

[0054] When the rake 300 moves to the bottom of the grate 130, the swing motor drives the swing arm 310 to rotate clockwise, the length of the differential steel cable 330 between the second winding wheel 320 and the transition shaft 530 decreases, the differential steel cable 330 no longer pulls the adjusting rod upward, the tension spring 431 releases the elastic force to drive the adjusting rod to move downward, the large section 434 moves from the thick section 433 to the thin section 432, and the drainage port 422 is blocked, so that the water in the counterweight barrel 420 no longer flows out. Thereafter, the traction motor drives the traction shaft 520 to rotate, so that the rake 300 moves upward, the counterweight barrel 420 moves downward, and the water behind the grate 130 enters the counterweight barrel 420 through the one-way water inlet valve 421, thereby increasing the weight of the counterweight barrel 420 to assist the traction motor in driving the rake 300 to move upward, thereby saving energy.

[0055] In a further embodiment, the drain 422 is provided with an adjusting valve 436 for changing the size of the drain 422. When the overall water level is low, the drain 422 is reduced in size by the adjusting valve 436 to reduce the water discharge of the counterweight bucket 420 during the process of the rake 300 moving downward and the counterweight bucket 420 moving upward, so that the difference between the total weight of the rake 300 and the counterweight 410 and the weight of the counterweight bucket 420 is smaller, and thus the counterweight bucket 420 provides a greater pulling force to the traction cable 510 when the rake 300 is moving upward, so that the rake 300 can drive the dirt to move with less additional power.

[0056] In a further embodiment, the support frame 200 is fixedly connected with a support arm 230, which is located below the traction shaft 520; the traction cable 510 is wound around the first winding wheel 540, passes through the support arm 230 and is fixedly connected to the counterweight bucket 420.

[0057] During the process of cleaning the dirt, the water flows from front to back. When there is less dirt in front of the barrier 130, the water level difference between the front and back of the barrier 130 is small. In this case, the rake 300 can move downward smoothly under the action of its own weight and the weight of the counterweight 410 to the lower end of the barrier 130. At this time, the rake 300 and the counterweight bucket 420 are both located below the water surface, and the water flow exerts a backward pushing force on the rake 300 and the counterweight bucket 420. During the process of the rake 300 moving upward, the friction between the rake 300 and the barrier 130 increases, but when the counterweight bucket 420 swings backward, the traction cable 510 gives the rake 300 an upward pulling force, thereby offsetting the increased friction between the rake 300 and the barrier 130 due to the increased water flow.

[0058] When there is more dirt in front of the barrier 130, the water level difference between the front and back of the barrier 130 is large. In this case, the volume of the counterweight bucket 420 located below the water surface is small, and the force exerted by the water flow is small. The swinging amplitude of the counterweight bucket 420 is small, and the force of the counterweight bucket 420 pulling the traction cable 510 backward is small, thereby reducing the upward pulling force of the traction cable 510 when the rake 300 moves downward, so that the rake 300 can move downward smoothly under the drive of the traction motor and reach the bottom of the barrier 130.

[0059] In the process of cleaning the sewage, the water flow will generate a thrust force on the counterweight bucket 420 and the rake 300. When the sewage is less, the present application utilizes the thrust force of the water flow on the counterweight bucket 420 to offset the additional friction force of the water flow on the rake 300, further assisting the upward movement of the rake 300. When the sewage is more, the structure of the present application reduces the thrust force of the water flow on the counterweight bucket 420, avoiding the impact on the downward movement of the rake 300. By arranging the support arm 230 between the first winding wheel 540 and the counterweight bucket 420, and making the traction cable 510 pass through the support arm 230, the traction cable 510 between the support arm 230 and the first winding wheel 540 will not be affected when the counterweight bucket 420 is shaken by the water flow.

[0060] In a further embodiment, the first winding wheel 540 includes a large winding wheel 541 and a small winding wheel 542; the large winding wheel 541 is synchronously rotatably installed on the traction shaft 520, and the small winding wheel 542 is coaxially and fixedly connected to the large winding wheel 541; the outer diameter of the small winding wheel 542 is smaller than that of the large winding wheel 541; one end of the traction cable 510 is connected to the rake 300 after winding a preset number of turns on the large winding wheel 541, and the other end is connected to the counterweight bucket 420 after winding a preset number of turns on the small winding wheel 542. When the traction motor drives the traction shaft 520 to rotate, the traction shaft 520 drives the large winding wheel 541 and the small winding wheel 542 to rotate synchronously, the number of turns of the traction cable 510 on the large winding wheel 541 increases, and the number of turns of the traction cable 510 on the small winding wheel 542 decreases, so that the counterweight bucket 420 moves downward while the sliding car 210 moves upward; vice versa, when the traction motor drives the traction shaft 520 to rotate reversely, the number of turns of the traction cable 510 on the large winding wheel 541 decreases, and the number of turns of the traction cable 510 on the small winding wheel 542 increases, so that the counterweight bucket 420 moves upward while the sliding car 210 moves downward. In the above process, since the outer diameters of the large winding wheel 541 and the small winding wheel 542 are not equal, the moving distance of the sliding car 210 is greater than that of the counterweight bucket 420 in the same time period.

[0061] In a further embodiment, the drain port 422 is arranged on the side of the counterweight bucket 420 facing the grate 130. When the large-diameter section 434 is located in the thick-diameter section 433, the drain port 422 is not blocked, and the water in the counterweight bucket 420 is discharged outward. Since the drain port 422 faces the grate 130, when the liquid in the counterweight bucket 420 is discharged, the grate 130 is washed from back to front.

[0062] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mobile vertical rake bucket cleaning machine, characterized in that, include: A frame is fixedly connected to a grid; the grid is inclined, with the lower end of the grid located in front of the upper end; a sliding trolley is slidably mounted on a support frame, the trolley being located in front of the grid and sliding along the inclined direction of the grid. The rake bucket is rotatably mounted on the sliding trolley; the rotation axis is set horizontally and extends in the left and right direction; the center of gravity of the rake bucket is located below the rotation axis; in the initial state, there is a gap of a preset width between the lower end of the rake bucket and the grid; when the rake bucket rotates to a preset angle, the lower end of the rake bucket abuts against the grid; the rake bucket is connected to a differential assembly, which is used to drive the rake bucket to rotate around the rotation axis. The differential assembly includes a differential steel cable, a second winding wheel, and a swing arm. The second winding wheel is positioned between two first winding wheels and is synchronously mounted on the traction shaft. One end of the swing arm is rotatably mounted on a support frame and connected to a swing motor, which drives the swing arm to rotate. The other end of the swing arm is equipped with a pulley, which is located between the second winding wheel and the transition shaft. After the differential steel cable has wound a preset number of turns on the second winding wheel, it sequentially winds through the pulley and the transition shaft, and is then fixedly connected to the bucket. The counterweight mechanism includes a counterweight block and a counterweight barrel. The counterweight block is fixedly connected to the rake bucket, and its center of gravity is located below the rotation axis of the rake bucket. The counterweight barrel is located on the rear side of the grid. The counterweight barrel is equipped with a one-way water inlet valve and a drain outlet. The drain outlet is equipped with an opening and closing structure. When the opening and closing structure is in the open state, water in the counterweight barrel flows out from the drain outlet. When the opening and closing structure is in the closed state, the drain outlet is blocked. The opening structure includes an adjusting pipe, an adjusting rod, and a tension spring. The adjusting pipe extends vertically, and the adjusting rod is connected to the counterweight bucket. The adjusting pipe includes a narrow diameter section and a wide diameter section, with the drain outlet located in the narrow diameter section. The adjusting rod is coaxially installed inside the adjusting pipe and is movable along its own axis. The adjusting rod includes a large diameter section and a small diameter section. The outer diameter of the large diameter section is equal to the inner diameter of the narrow diameter section. Initially, the large diameter section is located inside the wide diameter section, and the small diameter section is located inside the narrow diameter section. The upper and lower ends of the adjusting rod extend outwards, and the adjusting pipe and the adjusting rod are sealed together. The tension spring is sleeved on the adjusting rod, and its two ends are fixedly connected to the adjusting rod and the adjusting pipe, respectively. The end of the differential steel cable furthest from the bucket is fixedly connected to the upper end of the adjusting rod. The traction mechanism is used to drive the sliding cart and the counterweight bucket to rise or fall, and the sliding cart and the counterweight bucket move in opposite directions.

2. The mobile vertical rake bucket cleaning machine according to claim 1, characterized in that, The traction mechanism includes a traction shaft, a transition shaft, a first winding wheel, and a traction cable. Both the traction shaft and the transition shaft extend to the left and right and are rotatably mounted on the support frame. The traction shaft is connected to a traction motor, which drives the traction shaft to rotate around its own axis. The transition shaft is located above the traction shaft. There are two first winding wheels, spaced apart to the left and right, with the distance between the two first winding wheels equal to the width of the trolley. The first winding wheels are synchronously mounted on the traction shaft. There are two traction cables, which are wound around the two first winding wheels respectively. After passing through the transition shaft, the two traction cables are fixedly connected to the left and right ends of the trolley respectively. The end of the traction cable away from the trolley is fixedly connected to the counterweight bucket.

3. A mobile vertical rake bucket cleaning machine according to claim 1, characterized in that, The collection mechanism includes a cleaning plate and a collection box; the upper end of the cleaning plate is rotatably mounted on the support frame, and when the bucket is in the highest position, the lower end of the cleaning plate contacts the inner wall of the bucket; the collection box is fixedly mounted on the support frame and located behind the support plate.

4. A mobile vertical rake bucket cleaning machine according to claim 1, characterized in that, The drain outlet is equipped with a regulating valve, which is used to change the size of the drain outlet.

5. A mobile vertical rake bucket cleaning machine according to claim 2, characterized in that, A support arm is fixedly connected to the support frame, and the support arm is located below the traction shaft; the traction steel cable is wound around the first winding wheel, passes through the support arm, and is fixedly connected to the counterweight bucket.

6. A mobile vertical rake bucket cleaning machine according to claim 1, characterized in that, The first winding wheel includes a large winding wheel and a small winding wheel; the large winding wheel is synchronously mounted on the traction shaft, and the small winding wheel is coaxial and fixedly connected to the large winding wheel; the outer diameter of the small winding wheel is smaller than the outer diameter of the large winding wheel; one end of the traction steel cable is connected to the rake bucket after being wound around the large winding wheel a preset number of times, and the other end is connected to the counterweight bucket after being wound around the small winding wheel a preset number of times.

7. A mobile vertical rake bucket cleaning machine according to claim 6, characterized in that, The drain outlet is located on the side of the counterweight barrel facing the grid.

8. A mobile vertical rake bucket cleaning machine according to claim 1, characterized in that, There are at least two grates, and multiple grates are arranged in the left and right directions; the support plate is provided with slide rails that extend left and right, and the support frame is slidably installed on the slide rails.

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