CN112267438A - Current-limiting gate with garbage removing function - Google Patents

Abstract

The invention relates to the technical field of water conservancy gates, in particular to a current-limiting gate with a garbage removing function, which comprises a dam body, wherein a left-right extending water flowing cavity is arranged in the dam body, the water flowing cavity is upwards communicated with a gate cavity, the left end wall of the gate cavity is fixedly provided with a gate connecting block, a gate body extending rightwards is rotatably arranged on the gate connecting block, the upper end wall of the gate body is fixedly provided with a gate hinge block, and the upper end wall of the dam body is fixedly provided with a gate regulator extending upwards. Plays a certain water body protection effect and is beneficial to ecological protection.

Description

Current-limiting gate with garbage removing function

Technical Field

The invention relates to the technical field of water conservancy gates, in particular to a flow-limiting gate with a garbage removing function.

Background

The low-water-head hydraulic structure is built on a river channel and a canal, and the flow rate and the water level are controlled by using a gate. The closing of the gate can block flood, damp or raise the upstream water level so as to meet the requirements of irrigation, power generation, shipping, aquatic products, environmental protection, industrial and domestic water and the like; the gate is opened, flood, waterlogging, water or waste water can be released, and water can be supplied to downstream river channels or channels. In water conservancy projects, the sluice is widely applied as a building for retaining water, draining water or taking water.

Lack the regulation control effect to the water velocity of flow at the floodgate in-process of putting, can't make the effect that the selection control opened and close the floodgate in the face of water under the two kinds of condition of this too big or general big, and pile up rubbish easily, corrode the gate, lead to rubbish card near the gate body easily when the gate is opened, lead to gate body card and not tight, the protection that is unfavorable for ecological environment is piled up to piling up of rubbish simultaneously, rubbish piles up more when the gate is closed, need artifical salvage, staff intensity of labour is great, therefore it improves above-mentioned problem to need design a current-limiting gate with the function of driving rubbish.

Disclosure of Invention

The invention aims to provide a current-limiting gate with a garbage removing function, which can overcome the defects in the prior art, so that the practicability of equipment is improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a current-limiting gate with a garbage removing function, which comprises a dam body, wherein a flow cavity extending leftwards and rightwards is arranged in the dam body, the flow cavity is communicated upwards and provided with a gate cavity, the left end wall of the gate cavity is fixedly provided with a gate connecting block, a gate body extending rightwards is rotatably arranged on the gate connecting block, the upper end wall of the gate body is fixedly provided with a gate hinge block, the upper end wall of the dam body is fixedly provided with an upwards extending gate regulating body, the gate regulating body is internally provided with a gate connecting rod cavity extending downwards and communicated with the gate cavity, a gate sliding block is arranged in the gate connecting rod cavity in a vertical sliding manner, a gate screw shaft extending vertically and arranged in the gate regulating body in a vertical sliding manner is fixedly arranged on the gate sliding block, a screw is fixedly arranged on the gate screw shaft, and a gate connecting rod is hinged at the lower end of, the lower end of the gate connecting rod is hinged with the gate hinge block, a manual worm gear cavity, a sliding tooth cavity and an automatic worm gear cavity are sequentially arranged in the gate adjusting body from bottom to top, an upward extending threaded shaft is rotatably arranged between the automatic worm gear cavity and the sliding tooth cavity, a threaded hole meshed with the screw rod is fixedly arranged in the threaded shaft, a backward extending manual rotating shaft is rotatably arranged between the front end wall and the rear end wall of the manual worm gear cavity, a hand wheel is fixedly arranged at the rear end of the manual rotating shaft, the hand wheel can drive the threaded shaft to rotate through a manual opening and closing device to drive the gate screw shaft to lift, a front end wall of the dam body is rotatably provided with a front and rear extending belt wheel shaft, the belt wheel shaft can drive the threaded shaft to rotate through the automatic opening and closing device to drive the gate screw shaft to lift, and the flow water cavity is upwards communicated with a cleaning cavity, clean chamber is provided with the ascending refuse treatment chamber of opening to the upper switch-on of right, refuse treatment chamber lower extreme is provided with the rubbish chamber, the internal position of dam is in clean chamber rear side is provided with adjusts the chamber, adjust the chamber with rotate between clean chamber and be provided with the clean main shaft of front and back extension, clean main shaft rotates and to drive and is located rubbish cleaning device motion in the clean chamber clears up rubbish, the front and back end wall rotates the power shaft that extends around being provided with between, the fixed power disc that is provided with on the power shaft, the circumference array is provided with six power paddles on the power disc, the power shaft with clean main shaft uses the belt to be connected, clean main shaft rotates through being located adjust the automatic control device accessible of intracavity clean main shaft rotational speed controls the band pulley shaft rotates.

Further, the manual opening and closing device comprises a manual driven gear fixedly arranged at the lower end of the sliding gear cavity, a manual worm shaft extending up and down is rotatably arranged between the sliding gear cavity and the manual worm wheel cavity, a manual worm wheel is fixedly arranged at the lower end of the manual worm shaft, a manual worm meshed with the manual worm wheel is fixedly arranged in the manual worm wheel cavity of the manual rotating shaft, a manual master gear is fixedly arranged at the upper end of the manual worm shaft, a conversion supporting rod is fixedly arranged at the left end of the gate regulator, a conversion shaft is rotatably arranged on the conversion supporting rod, a conversion cavity with a right opening is arranged in the conversion shaft, a forward extending connecting rod pin is eccentrically arranged in the conversion cavity, a rightward extending slide rod connecting rod is hinged on the connecting rod pin, a slide rod is arranged between the conversion cavity and the sliding gear cavity in a leftward-rightward sliding manner, and the left end of the slide rod is hinged with the slide rod connecting, the right end of the sliding rod is rotatably provided with an intermediate gear shaft extending downwards, and an intermediate gear meshed with the manual driven gear and the manual main gear is fixedly arranged on the intermediate gear shaft.

Furthermore, the automatic opening and closing device comprises an automatic belt wheel fixedly arranged at the front end of the belt wheel shaft, an automatic worm shaft extending forwards is rotatably arranged between the front end wall and the rear end wall of the automatic worm wheel cavity, a worm belt wheel connected with the automatic belt wheel through an automatic belt is fixedly arranged at the front end of the automatic worm shaft, the automatic worm shaft is fixedly arranged in the automatic worm wheel cavity and is provided with an automatic worm, the upper end of the threaded shaft is connected with the automatic worm wheel shaft through a safety coupling, and an automatic worm wheel meshed with the automatic worm is fixedly arranged at the upper end of the automatic worm wheel shaft.

Furthermore, the garbage cleaning device comprises a cleaning auxiliary shaft which is arranged between the front end wall and the rear end wall of the flowing water cavity in a rotating mode and extends forwards and backwards, the cleaning auxiliary shaft and the cleaning main shaft are fixedly provided with three bevel gear shafts which are arranged in an equidistant mode forwards and backwards, the two bevel gear shafts are connected through a cleaning crawler, a cleaning block is fixedly arranged on the cleaning crawler, and four cleaning grids which extend upwards and are alternately arranged with the cleaning crawler are fixedly arranged on the lower end wall of the flowing water cavity.

Further, the automatic control device comprises a cleaning belt wheel fixedly arranged at the rear end of the cleaning main shaft, a bevel gear wheel shaft extending forwards is rotatably arranged at the rear end wall of the adjusting cavity, a bevel gear wheel connected with the cleaning belt wheel through a flywheel belt is fixedly arranged on the bevel gear wheel shaft, a cleaning bevel gear is fixedly arranged at the front end of the bevel gear wheel shaft, a flywheel shaft extending leftwards and rightwards is rotatably arranged between the left end wall and the right end wall of the adjusting cavity, a flywheel bevel gear meshed with the cleaning bevel gear is fixedly arranged on the flywheel shaft, a flywheel fixing block is fixedly arranged at the left end of the flywheel bevel gear on the flywheel shaft, four flywheel connecting rods extending leftwards are arranged on the flywheel fixing block in a circumferential array hinge mode, a balancing weight is fixedly arranged at the left end of each flywheel connecting rod, a rack sliding block is arranged on the flywheel shaft in a left-right sliding mode, the end, far away from the axle center, of the middle connecting rod is hinged to the middle of the flywheel connecting rod, a rack is fixedly arranged at the left end of the rack sliding block, an output gear shaft extending forwards is rotatably arranged on the rear end wall of the adjusting cavity, an output gear meshed with the rack is fixedly arranged on the output gear shaft, and the output gear shaft is connected with the belt wheel shaft through a belt.

The invention has the beneficial effects that: the flow-limiting gate with the garbage removing function provided by the invention has the advantages that the water wheel rotation is used as a power source, the energy conservation and the environmental protection are realized, the time and the labor are saved, the opening and the closing of the water gate are selected and controlled according to the water expansion condition, the effect of limiting the flow velocity of a water body is also facilitated, the water garbage in the water flow process can be filtered, the garbage can be effectively collected, the water body protection effect to a certain degree is realized, and the ecological protection is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of a current-limiting gate with a garbage removing function according to the present invention.

Fig. 2 is an enlarged schematic view of a in fig. 1.

Fig. 3 is an enlarged schematic view of B in fig. 1.

Fig. 4 is a schematic view of the structure in the direction C in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The current-limiting gate with the function of removing garbage, which is described in conjunction with the attached drawings 1-4, comprises a dam body 10, wherein a water flowing cavity 11 extending left and right is arranged in the dam body 10, the water flowing cavity 11 is communicated upwards to be provided with a gate cavity 77, the left end wall of the gate cavity 77 is fixedly provided with a gate connecting block 14, the gate connecting block 14 is rotatably provided with a gate body 12 extending right, the upper end wall of the gate body 12 is fixedly provided with a gate hinge block 13, the upper end wall of the dam body 10 is fixedly provided with a gate regulator 27 extending upwards, the gate regulator 27 is internally provided with a gate connecting rod cavity 16 extending downwards and communicated with the gate cavity 77, a gate slider 17 is arranged in the gate connecting rod cavity 16 in a vertical sliding manner, the gate slider 17 is fixedly provided with a gate screw shaft 18 extending vertically and capable of sliding vertically in the gate regulator 27, a screw 28 is fixedly arranged on the gate screw shaft 18, a gate connecting rod 15 is hinged to the lower end of the gate screw shaft 18, the lower end of the gate connecting rod 15 is hinged to the gate hinge block 13, a manual worm cavity 19, a sliding tooth cavity 33 and an automatic worm cavity 24 are sequentially arranged in the gate adjusting body 27 from bottom to top, an upward extending threaded shaft 54 is rotatably arranged between the automatic worm cavity 24 and the sliding tooth cavity 33, a threaded hole 32 meshed with the screw 28 is fixedly arranged in the threaded shaft 54, a backward extending manual rotating shaft 20 is rotatably arranged between the front end wall and the rear end wall of the manual worm cavity 19, a hand wheel 22 is fixedly arranged at the rear end of the manual rotating shaft 20, the hand wheel 22 can drive the threaded shaft 54 to rotate through a manual opening and closing device 100 to drive the gate screw shaft 18 to lift, and the front end wall of the dam 10 is rotatably provided with a forward and backward extending belt wheel shaft 38, the band pulley axle 38 rotates and can drive the threaded shaft 54 to rotate and drive the gate screw shaft 18 to lift through the automatic opening and closing device 200, the flowing water cavity 11 is communicated upwards and is provided with a clean cavity 45, the clean cavity 45 is communicated upwards and is provided with a garbage treatment cavity 51 with an upward opening, the lower end of the garbage treatment cavity 51 is provided with a garbage cavity 43, an adjusting cavity 68 is arranged at the rear side of the clean cavity 45 in the dam body 10, a cleaning main shaft 41 extending front and back is rotatably arranged between the adjusting cavity 68 and the clean cavity 45, the cleaning main shaft 41 rotates and can drive the garbage cleaning device 300 in the clean cavity 45 to move to clean garbage, a power shaft 49 extending front and back is rotatably arranged between the front end wall and the rear end wall, a power disc 48 is fixedly arranged on the power shaft 49, six power paddles 47 are arranged on the power disc 48 in a circumferential array, and the power shaft 49 is connected with the cleaning main shaft 41 through a belt, the rotation of the cleaning spindle 41 is controlled by the rotation speed of the cleaning spindle 41 by means of an automatic control device 400 located in the adjustment chamber 68 to control the rotation of the pulley shaft 38.

Advantageously, the manual opening and closing device 100 includes a manual driven gear 53 fixedly disposed at a lower end of the sliding gear cavity 33, a manual worm shaft 35 extending up and down is rotatably disposed between the sliding gear cavity 33 and the manual worm wheel cavity 19, a manual worm wheel 34 is fixedly disposed at a lower end of the manual worm shaft 35, the manual rotating shaft 20 is fixedly disposed in the manual worm wheel cavity 19 and is engaged with the manual worm wheel 34, a manual main gear 52 is fixedly disposed at an upper end of the manual worm shaft 35, a switching support rod 62 is fixedly disposed at a left end of the shutter adjusting body 27, a switching shaft 60 is rotatably disposed on the switching support rod 62, a switching cavity 61 with a rightward opening is disposed in the switching shaft 60, a forward extending link pin 59 is eccentrically disposed in the switching cavity 61, a rightward extending slide rod 58 is hinged on the link pin 59, a slide rod 57 is arranged between the conversion cavity 61 and the sliding gear cavity 33 in a left-right sliding manner, the left end of the slide rod 57 is hinged with the slide rod connecting rod 58, the right end of the slide rod 57 is rotatably provided with an intermediate gear shaft 56 extending downwards, and an intermediate gear 55 meshed with the manual driven gear 53 and the manual main gear 52 is fixedly arranged on the intermediate gear shaft 56.

Advantageously, the automatic opening and closing device 200 includes an automatic pulley 37 fixedly disposed at a front end of the pulley shaft 38, an automatic worm shaft 30 extending forward is rotatably disposed between front and rear end walls of the automatic worm chamber 24, a worm pulley 31 connected to the automatic pulley 37 by an automatic belt 36 is fixedly disposed at a front end of the automatic worm shaft 30, the automatic worm 29 is fixedly disposed in the automatic worm chamber 24 of the automatic worm shaft 30, an automatic worm shaft 26 is connected to an upper end of the threaded shaft 54 by a safety coupling 23, and an automatic worm wheel 25 engaged with the automatic worm 29 is fixedly disposed at an upper end of the automatic worm shaft 26.

Advantageously, the garbage disposal apparatus 300 includes a front and a rear extending cleaning auxiliary shafts 50 rotatably disposed between the front and rear end walls of the flowing water chamber 11, three bevel gear shafts 79 disposed equidistantly in front and rear are fixedly disposed on the cleaning auxiliary shafts 50 and the cleaning main shaft 41, the two bevel gear shafts 79 are connected by a cleaning crawler 44, a cleaning block 46 is fixedly disposed on the cleaning crawler 44, and four cleaning grids 42 extending upward and alternately disposed with the cleaning crawler 44 are fixedly disposed on the lower end wall of the flowing water chamber 11.

Advantageously, the automatic control device 400 comprises a cleaning pulley 40 fixedly arranged at the rear end of the cleaning spindle 41, a bevel pulley shaft 79 extending forwards is rotatably arranged at the rear end wall of the adjusting cavity 68, a bevel pulley 66 connected with the cleaning pulley 40 by a flywheel belt 39 is fixedly arranged on the bevel pulley shaft 79, a cleaning bevel gear 65 is fixedly arranged at the front end of the bevel pulley shaft 79, a flywheel shaft 63 extending leftwards and rightwards is rotatably arranged between the left and right end walls of the adjusting cavity 68, a flywheel bevel gear 64 engaged with the cleaning bevel gear 65 is fixedly arranged on the flywheel shaft 63, a flywheel fixing block 67 is fixedly arranged on the flywheel shaft 63 at the left end of the flywheel bevel gear 64, four flywheel connecting rods 69 extending leftwards are hinged on the flywheel fixing block 67 in a circumferential array, and a balancing weight 70 is fixedly arranged on the left end of the flywheel connecting rods 69, a rack slider 74 is arranged on the flywheel shaft 63 in a left-right sliding manner, four intermediate connecting rods 75 are arranged on the rack slider 74 in a circumferential array in a hinged manner, the end, away from the axis, of each intermediate connecting rod 75 is hinged to the middle of the flywheel connecting rod 69, a rack 73 is fixedly arranged at the left end of the rack slider 74, an output gear shaft 72 extending forwards is rotatably arranged on the rear end wall of the adjusting cavity 68, an output gear 71 meshed with the rack 73 is fixedly arranged on the output gear shaft 72, and the output gear shaft 72 is connected with the pulley shaft 38 through a belt.

The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.

As shown in fig. 1-4, the sequence of mechanical actions of the entire device of the invention: the working process is automatically controlled: the flowing of the river water to the right drives the power paddle 47 to rotate the power shaft 49, so as to rotate the cleaning main shaft 41, so as to rotate the cleaning pulley 40, so as to rotate the bevel gear 66, so as to rotate the cleaning bevel gear 65, so as to rotate the flywheel bevel gear 64, so as to rotate the flywheel fixing block 67, when the water flow is too fast, the flywheel connecting rod 69 rotates to drive the counterweight block 70 to rotate around the flywheel fixing block 67 away from the axis, so as to drive the rack slider 74 to move to the left, so as to drive the rack 73 to move to the left, so as to drive the output gear 71 to rotate in the forward direction, so as to drive the worm pulley 37 to rotate in the forward direction, so as to drive the automatic worm wheel 25 to rotate, so as to drive the automatic worm wheel shaft 26 to rotate the threaded shaft 54, thereby driving the gate screw shaft 18 to move downwards, and driving the gate body 12 to rotate downwards around the gate connecting block 14 to close the gate, so that the flow rate is reduced to reach the set value.

And (3) manually controlling the working process: the switching shaft 60 is manually driven to rotate upwards, so as to drive the sliding rod 57 to move leftwards, so as to drive the intermediate gear 55 to mesh with the manual slave gear 53 and the manual master gear 52, at this time, the manual rotation of the automatic worm gear shaft 26 is not driven downwards by the safety coupling 23, the hand wheel 22 is manually driven to rotate the manual rotating shaft 20, so as to drive the manual worm 21 to rotate, so as to drive the manual worm wheel 34 to rotate, so as to drive the manual master gear 52 to rotate, so as to drive the intermediate gear 55 to rotate, so as to drive the manual slave gear 53 to rotate, so as to drive the threaded shaft 54 to rotate, so as to drive the gate screw shaft 18 to drive the gate body 12 to move to a required position.

The garbage cleaning process comprises the following steps: the cleaning main shaft 41 rotates to drive the bevel gear shaft 79 to rotate, so as to drive the cleaning crawler 44 to rotate, so as to drive the cleaning block 46 to rotate, so that the garbage is lifted upwards into the garbage chamber 43 for concentration, and then a worker cleans the garbage in the garbage processing chamber 51 regularly.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (5)

1. The utility model provides a current-limiting gate with clear away rubbish function, includes the dam body, its characterized in that: the dam comprises a dam body, a gate cavity and a gate connecting block, wherein the gate cavity is arranged in the dam body in a left-right extending mode, the gate cavity is communicated upwards and provided with a gate cavity, the left end wall of the gate cavity is fixedly provided with the gate connecting block, the gate connecting block is rotatably provided with a gate body extending rightwards, the upper end wall of the gate body is fixedly provided with a gate hinging block, the upper end wall of the dam body is fixedly provided with an upwards extending gate regulating body, the gate regulating body is internally provided with a gate connecting rod cavity extending downwards and communicated with the gate cavity, the gate connecting rod cavity is internally provided with a gate sliding block in a vertical sliding mode, the gate sliding block is fixedly provided with a gate screw rod shaft extending vertically and arranged in the gate regulating body in a vertical sliding mode, the gate screw rod shaft is fixedly provided with a screw rod, the lower end of the gate screw, a manual worm wheel cavity, a sliding tooth cavity and an automatic worm wheel cavity are sequentially arranged in the gate adjusting body from bottom to top, an upwardly extending threaded shaft is rotatably arranged between the automatic worm wheel cavity and the sliding tooth cavity, a threaded hole meshed with the screw rod is fixedly arranged in the threaded shaft, a backward extending manual rotating shaft is rotatably arranged between the front end wall and the rear end wall of the manual worm wheel cavity, a hand wheel is fixedly arranged at the rear end of the manual rotating shaft, the hand wheel can drive the threaded shaft to rotate through a manual opening and closing device to drive the gate screw shaft to lift, a belt wheel shaft extending forwards and backwards is rotatably arranged on the front end wall of the dam body, the belt wheel shaft can drive the threaded shaft to rotate through an automatic opening and closing device to drive the gate screw shaft to lift, a cleaning cavity is communicated upwards with the flowing water cavity, and a garbage processing cavity with an upward opening is communicated to the right upwards, garbage treatment chamber lower extreme is provided with the rubbish chamber, the internal being located of dam clean chamber rear side is provided with the regulation chamber, adjust the chamber with rotate between clean chamber and be provided with the clean main shaft of front and back extension, clean main shaft rotates and to drive and is located the rubbish cleaning device motion in the clean intracavity is cleared up rubbish, rotate between the front and back end wall and be provided with the power shaft of front and back extension, the fixed power dish that is provided with on the power shaft, the circumference array is provided with six power paddles on the power dish, the power shaft with use the belt to be connected between the clean main shaft, clean main shaft rotates through being located the automatic control device accessible of regulation intracavity clean main shaft rotational speed is controlled the band pulley axle rotates.

2. The flow-limiting gate with a trash removal function of claim 1, wherein: the manual opening and closing device comprises a manual driven gear fixedly arranged at the lower end of the sliding tooth cavity, a manual worm shaft extending up and down is rotatably arranged between the sliding tooth cavity and the manual worm wheel cavity, a manual worm wheel is fixedly arranged at the lower end of the manual worm shaft, a manual worm meshed with the manual worm wheel is fixedly arranged in the manual rotating shaft positioned in the manual worm wheel cavity, a manual main gear is fixedly arranged at the upper end of the manual worm shaft, a conversion supporting rod is fixedly arranged at the left end of the gate regulator, a conversion shaft is rotatably arranged on the conversion supporting rod, a conversion cavity with a right opening is arranged in the conversion shaft, a forward extending connecting rod pin is eccentrically arranged in the conversion cavity, a rightward extending slide rod connecting rod is hinged on the connecting rod pin, a slide rod is arranged between the conversion cavity and the sliding tooth cavity in a left-right sliding mode, and the left end of the slide rod is hinged with the, the right end of the sliding rod is rotatably provided with an intermediate gear shaft extending downwards, and an intermediate gear meshed with the manual driven gear and the manual main gear is fixedly arranged on the intermediate gear shaft.

3. The flow-limiting gate with a trash removal function of claim 1, wherein: the automatic opening and closing device comprises an automatic belt wheel fixedly arranged at the front end of the belt wheel shaft, an automatic worm shaft extending forwards is rotatably arranged between the front end wall and the rear end wall of the automatic worm wheel cavity, a worm belt wheel connected with the automatic belt wheel through an automatic belt is fixedly arranged at the front end of the automatic worm shaft, the automatic worm shaft is positioned in the automatic worm wheel cavity and is fixedly provided with an automatic worm, the upper end of the threaded shaft is connected with the automatic worm wheel shaft through a safety coupling, and an automatic worm wheel meshed with the automatic worm is fixedly arranged at the upper end of the automatic worm wheel shaft.

4. The flow-limiting gate with a trash removal function of claim 1, wherein: the garbage cleaning device comprises a cleaning auxiliary shaft which is arranged between the front end wall and the rear end wall of the running water cavity in a rotating mode and extends forwards and backwards, the cleaning auxiliary shaft and the cleaning main shaft are fixedly provided with three bevel gear shafts which are arranged in a front-rear equidistant mode, the two bevel gear shafts are connected through a cleaning crawler belt, a cleaning block is fixedly arranged on the cleaning crawler belt, and four cleaning grids which extend upwards and are alternately arranged with the cleaning crawler belt are fixedly arranged on the lower end wall of the running water cavity.

5. The flow-limiting gate with a trash removal function of claim 1, wherein: the automatic control device comprises a cleaning belt wheel fixedly arranged at the rear end of the cleaning main shaft, a bevel gear wheel shaft extending forwards is rotatably arranged at the rear end wall of the adjusting cavity, a bevel gear wheel connected with the cleaning belt wheel through a flywheel belt is fixedly arranged on the bevel gear wheel shaft, a cleaning bevel gear is fixedly arranged at the front end of the bevel gear wheel shaft, a flywheel shaft extending leftwards and rightwards is rotatably arranged between the left end wall and the right end wall of the adjusting cavity, a flywheel bevel gear meshed with the cleaning bevel gear is fixedly arranged on the flywheel shaft, a flywheel fixing block is fixedly arranged at the left end of the flywheel bevel gear on the flywheel shaft, four flywheel connecting rods extending leftwards are hinged on the flywheel fixing block in a circumferential array manner, a balancing weight is fixedly arranged at the left end of each flywheel connecting rod, a rack sliding block is arranged on the flywheel shaft in a left-right sliding manner, the end, far away from the axle center, of the middle connecting rod is hinged to the middle of the flywheel connecting rod, a rack is fixedly arranged at the left end of the rack sliding block, an output gear shaft extending forwards is rotatably arranged on the rear end wall of the adjusting cavity, an output gear meshed with the rack is fixedly arranged on the output gear shaft, and the output gear shaft is connected with the belt wheel shaft through a belt.

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