CN107653851B - Intermittent water supply device for channel - Google Patents
Intermittent water supply device for channel Download PDFInfo
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- CN107653851B CN107653851B CN201710902829.4A CN201710902829A CN107653851B CN 107653851 B CN107653851 B CN 107653851B CN 201710902829 A CN201710902829 A CN 201710902829A CN 107653851 B CN107653851 B CN 107653851B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 138
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000011152 fibreglass Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000002262 irrigation Effects 0.000 abstract description 50
- 238000003973 irrigation Methods 0.000 abstract description 50
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000007667 floating Methods 0.000 description 17
- 230000005540 biological transmission Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003621 irrigation water Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B13/00—Irrigation ditches, i.e. gravity flow, open channel water distribution systems
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B13/00—Irrigation ditches, i.e. gravity flow, open channel water distribution systems
- E02B13/02—Closures for irrigation conduits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Nozzles (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to a channel intermittent water supply device, which comprises a main canal, a branch canal, a water wheel, a driving gear, a driven gear, a cam, a driven piece, a gate and a connecting shaft, wherein the main canal is connected with the water wheel; the water wheels are suspended above the bottom of the main canal, the water wheels are connected with the driving gear through the connecting shaft, the driving gear is meshed with the driven gear, the driven gear is connected with the cam through the concentric shaft, the gate is in sliding fit in the chute of the side wall of the branch canal, and the gate is in linkage fit with the cam through the driven piece; compared with the traditional ground irrigation, the invention has the advantages of large irrigation uniformity and good water-saving effect; compared with drip irrigation, sprinkling irrigation and the like, the investment is small; the device has the advantages of convenient control of irrigation, simple connection, no need of occupying additional land, material saving and simple operation.
Description
Technical Field
The invention relates to the technical field of agricultural water and soil engineering, in particular to a channel intermittent water supply device.
Background
Intermittent irrigation is mainly applied to furrow irrigation or minor ditch irrigation. The intermittent irrigation technology is a water-saving ground irrigation technology which supplies irrigation water to furrows intermittently according to a period until water flow is completely pushed to the tail end of the furrows (furrows), and is also called as a surge irrigation technology, and the water flow infiltrates soil by means of self gravity and soil capillary force; the whole irrigation process consists of a plurality of water supply and water cut-off period circulation, the intermittent irrigation causes that the soil on the field surface with the irrigation length in the previous period is dry and wet alternately, the structural properties of the soil on the surface layer are changed to form a compact layer, the infiltration capacity of irrigation water flow in a soil wetting section of a ditch (furrow) is reduced, meanwhile, the reduction of the roughness of the field surface also provides good boundary conditions for the water flow movement in the subsequent water supply process, and the irrigation quality and efficiency are improved; according to a large number of existing experimental data researches, compared with the traditional continuous ground irrigation, the intermittent irrigation technology has the advantages that: the irrigation method has the advantages of water saving (15% -30% of water saving compared with common ditches and furrow irrigation), energy saving, yield increasing, labor intensity reducing, agricultural cost reducing, uniform irrigation, high propulsion speed, high irrigation quality, deep seepage reducing, fertilizer preserving, capability of utilizing turbid water and sewage for irrigation and the like, and is simple and easy to implement, convenient to master and apply and convenient to manage, so that the irrigation method is a irrigation method very suitable for the national conditions of China; in order to promote the development and application of intermittent irrigation technology, the development of surge irrigation equipment suitable for the national conditions of China is one of the necessary conditions for realizing the large-area popularization and application of the water-saving irrigation method; at present, the vast irrigation areas in China are mostly adopting factors such as channel water delivery, current social economy, technical conditions, operation management level of the irrigation areas, water supply conditions and the like, and the development and development of simple equipment which is suitable for large-area popularization in China and can realize intermittent irrigation on channels are very necessary.
Intermittent irrigation technology has many advantages, which are valued by people, and the adaptability is irreplaceable by spraying and drip irrigation, but the current channel intermittent irrigation equipment lacks the application of the technology.
The Chinese authorized bulletin No. CN103444495B discloses a transverse-shaft type hydraulic self-control multidirectional intermittent irrigation device, which is characterized by comprising a timing water tank, a water diversion water tank and a transmission wheel train arranged in the water diversion water tank; the transmission gear train consists of a transmission gear train shaft, a spring, a driving wheel, a driven wheel and a steering wheel; the transmission wheel train shaft sequentially passes through the spring, the driving wheel, the driven wheel and the steering wheel and is arranged in the water diversion water tank; the water diversion water tank and the timing water tank are connected into a whole, and the middle is separated by a partition plate to form two water tanks which work independently; the siphon is fixed on the bottom plate of the timing water tank; the timing water tank water supply pipe is fixed at the upper part of the timing water tank; the other end of the timing water tank water supply pipe is connected with the master water supply pipe through a tee joint; the float valve is fixed at the upper part of the water diversion tank; the steering shaft is fixed on the tank wall at the upper part of the middle partition plate of the timing water tank and the water diversion water tank; the right steering shaft bearing and the left steering shaft bearing are closely adjacent and are respectively fixed on the steering shaft side by side; the dynamic floating ball fixed shaft is fixed on the wall of the upper part of the timing water tank, and is provided with a dynamic floating ball fixed shaft bearing; the power floating ball stay cord bypasses the power floating ball fixed shaft bearing and the right steering shaft bearing to connect the power floating ball with the driving wheel; the reset floating ball fixing shaft is fixed on the wall, close to the bottom plate, of the lower part of the timing water tank, and is provided with a reset floating ball fixing shaft bearing; the reset floating ball stay cord bypasses the reset floating ball fixed shaft bearing and the left steering shaft bearing to connect the reset floating ball with the driving wheel; when the power floating ball, the power floating ball stay cord, the reset floating ball stay cord and the driving wheel are arranged in a vertical plane as much as possible, and meanwhile, the mounting positions of the power floating ball fixing shaft and the reset floating ball fixing shaft are used for ensuring that the power floating ball and the reset floating ball can move up and down freely and do not affect each other to collide; the upper water discharging hole, the left water discharging hole and the right water discharging hole are distributed on the same concentric circle on the box wall of the water diversion water tank at an included angle of 120 degrees, and one shaft end of the transmission gear train shaft is fixed on the box wall of the water diversion water tank at the position of the center of the concentric circle; the other shaft end of the transmission gear train shaft is vertically fixed on the wall of the water distribution box at the other side; the spring fixing pin is fixed on the shaft end of the transmission wheel train shaft of the box wall of the water diversion box far away from the concentric circle center and is used for fixing the spring; the steering wheel is rigidly connected and fixed at the joint of the transmission wheel train shaft and the wall of the water diversion water tank with the concentric circle center; the steering wheel is provided with a steering wheel water drain hole, and the steering wheel water drain hole is arranged in equal diameter with the upper water drain hole, the left water drain hole and the right water drain hole, namely the diameters of the steering wheel water drain hole, the upper water drain hole, the left water drain hole and the right water drain hole are equal, and the steering wheel water drain hole is completely matched and aligned with the upper water drain hole, the left water drain hole and the right water drain hole respectively; the driven wheel is rigidly connected and fixed on the transmission wheel train shaft; one end of the spring is fixed on the spring fixing pin, and the other end of the spring is contacted with the driving wheel and is used for propping the driving wheel against the driven wheel under proper pressure; the driving wheel can rotate on the transmission wheel train shaft; the three driving wheel wedge-shaped check blocks are fixed on the driving wheel disc and distributed at 120 degrees on the driving wheel; the three driven wheel wedge-shaped check blocks are fixed on the driven wheel disc and are distributed at 120 degrees on the driven wheel, and the driving wheel wedge-shaped check blocks and the driven wheel wedge-shaped check blocks are mutually meshed; the device only adapts to the condition of pipeline low-flow water supply, but farmland ground irrigation flow is great, or can not be realized, or the device is huge, and the structure of the device is complex, and installation and maintenance are difficult.
Chinese patent publication No. CN102174965B discloses a hydraulic drive surge irrigation intermittent valve, which is characterized in that: comprises a T-shaped three-way valve body, a middle water inlet channel, a left water outlet channel, a left valve ball baffle, a right water outlet channel, a right valve ball baffle, a valve ball valve inner connecting rod, a valve ball connecting rod shaft, a left corrugated pipe telescopic bag guide rod, a left guide rod bearing, a left corrugated pipe telescopic bag guide rod support, a left corrugated pipe telescopic bag target type water inlet, a left corrugated pipe telescopic bag water inlet pipe, a left corrugated pipe telescopic bag water inlet valve, a right corrugated pipe telescopic bag guide rod, a right guide rod bearing, a right corrugated pipe telescopic bag guide rod support, a right corrugated pipe telescopic bag target type water inlet, a right corrugated pipe telescopic bag water inlet valve, a T-shaped connecting rod support, a T-shaped connecting rod shaft, a T-shaped connecting rod cross arm, a T-shaped connecting rod deflector rod, a spring and a valve outer connecting rod, wherein the T-shaped connecting rod consists of a T-shaped connecting rod shaft, a T-shaped connecting rod cross arm and a T-shaped connecting rod deflector rod, the T-shaped connecting rod cross arm is vertical to the T-shaped connecting rod deflector rod, the upper end of the T-shaped connecting rod deflector rod is intersected on a T-shaped connecting rod shaft positioned in the center of the T-shaped connecting rod cross arm and fixed, the T-shaped three-way valve body is internally provided with a middle water inlet channel, a left water outlet channel, a left valve ball baffle, a right water outlet channel, a right valve ball baffle, a valve ball valve internal connecting rod, a left bellows telescopic capsule target type water inlet and a right bellows telescopic capsule target type water inlet, a middle water inlet channel, a left water outlet channel, a left valve ball baffle, a right water outlet channel, a right valve ball baffle, a valve ball valve, a valve rod and a valve rod are arranged in the T-shaped three-way valve body a valve ball, a valve ball valve inner connecting rod, a left bellows telescopic bag target type water inlet, a right bellows telescopic bag target type water inlet, a left guide rod bearing, a left bellows telescopic bag guide rod support, a left bellows telescopic bag water inlet valve, a right bellows telescopic bag guide rod, a right guide rod bearing, a right bellows telescopic bag guide rod support and a right bellows telescopic bag water inlet valve which are arranged at the right upper part outside the T-shaped three-way valve body, a T-shaped connecting rod support, a T-shaped connecting rod shaft, a T-shaped connecting rod cross arm, a T-shaped connecting rod deflector rod, a spring and a valve ball valve outer connecting rod which are arranged at the middle upper part outside the T-shaped three-way valve body, the target type water inlet of the left bellows expansion bladder in the right water outlet channel is connected with the bottom of the left bellows expansion bladder through the water inlet pipe of the left bellows expansion bladder and the water inlet valve of the left bellows expansion bladder, the target type water inlet of the right bellows expansion bladder in the left water outlet channel is connected with the bottom of the right bellows expansion bladder through the water inlet pipe of the right bellows expansion bladder and the water inlet valve of the right bellows expansion bladder, the outer surface of the valve ball is an elastomer, the curved surface of the arc water passing through of the right valve ball baffle and the curved surface of the valve ball are consistent, the target type water inlet of the left bellows expansion bag and the target type water inlet of the right bellows expansion bag are cup-shaped, the cup mouth is respectively opposite to the flow channel centers of the right valve ball baffle and the left valve ball baffle, the upper centers of the left bellows expansion bag and the right bellows expansion bag are perpendicular to the upper planes of the left bellows expansion bag and the right bellows expansion bag, a left bellows expansion bag guide rod and a right bellows expansion bag guide rod are respectively fixed, the upper parts of the left bellows expansion bag guide rod and the right bellows expansion bag guide rod respectively penetrate through guide holes of the left bellows expansion bag guide rod bracket and the right bellows expansion bag guide rod bracket, a left guide rod bearing and a right guide rod bearing are respectively arranged at the lower parts of the left bellows expansion bag guide rod and the lower parts of the right bellows expansion bag guide rod, the left bellows telescopic bag guide rod and the right bellows telescopic bag guide rod are respectively provided with a limit clamp above a left guide rod bearing and a right guide rod bearing, a T-shaped connecting rod bracket is fixed at the upper part of a T-shaped three-way valve body, the T-shaped connecting rod bracket is positioned in the middle of the left bellows telescopic bag and the right bellows telescopic bag, the left middle of the upper part of the T-shaped connecting rod bracket is provided with a shaft hole of a T-shaped connecting rod shaft and is provided with a bearing, the left end of a T-shaped connecting rod cross arm is connected with the left bellows telescopic bag guide rod through the left guide rod bearing, the right end of the T-shaped connecting rod cross arm is connected with the right bellows telescopic bag guide rod through the right guide rod bearing, the lower end of a T-shaped connecting rod deflector rod is connected with the upper end of a valve ball valve outer connecting rod through a spring, the lower end of the valve outer connecting rod is fixed at the upper end of a valve ball valve inner connecting rod through a valve ball connecting rod shaft, the shaft hole of the valve ball connecting rod shaft is provided with a wear-resistant, smooth and elastic water stopping material, and the spring is always in a stretching state "; although the device is ingenious in arrangement, the device is only suitable for small-flow pipeline water supply; what is important is that the similar intermittent irrigation valves ignore the water hammer hazard caused by the pressure change of the water flow in the pipeline when the pipeline is pressurized for delivering water, the water hammer is in the pressurized pipeline, and the flow rate of the water is suddenly changed due to some external reasons (such as suddenly closed valve and suddenly stopped water pump unit), so that the pressure is suddenly increased and reduced alternately, and the water hammer effect is extremely destructive: because of the generation of the water hammer, the pressure in the pipeline is increased to be several times or even more than ten times of the normal pressure, and the damage is great, so that the pipeline is broken, and the production and life are affected; too high a pressure will cause the tube to collapse, whereas too low a pressure will result in collapse of the tube and damage to the valve and fixtures.
For another example, U.S. application No. 5782578 discloses a "hydraulic timing irrigation device", which has the disadvantage of adapting only to the condition of small flow water supply in pipelines, but larger flow of irrigation on the ground in farmlands, or is not realized or has huge device, as in the case of the chinese patent grant publication No. CN 103444495B.
For another example, a 'research on automatic irrigation equipment for canal irrigation surge' of Chen Jun of Shandong university of agriculture is published in 5 th and 20 th 2007, and intermittent water supply of channels is realized, but a regulating pool needs to be built on one side of the channels, so that farmlands are occupied, the device is complex, the operation is easy to fail, and the water quantity of a regulating room is wasted through a siphon pipe.
Disclosure of Invention
The invention aims to solve the technical problem of providing a channel intermittent water supply device which truly realizes intermittent water discharge control of channel ground high-flow irrigation; the device has the advantages of convenient control of irrigation, simple installation, no need of occupying additional land, material saving and simple operation.
In order to solve the technical problems, the invention adopts the following technical scheme: an intermittent water supply device for a channel comprises a main canal, a branch canal, a water wheel, a driving gear, a driven gear, a cam, a driven piece, a gate and a connecting shaft;
the branch canal is arranged on the side wall of the main canal, the water wheel is rotatably suspended above the bottom of the main canal, the water wheel is connected with the driving gear through the connecting shaft, the driving gear is meshed with the driven gear, the driven gear is connected with the cam concentric shaft, the gate is in sliding fit in the chute on the side wall of the branch canal, the gate is in linkage fit with the cam through the driven piece, the large-flow irrigation can be realized due to the open canal, the water hammer effect caused by the frequent opening and closing of the gate of the pipeline irrigation is avoided, the system is arranged on the open canal entirely, the additional occupation of cultivated land is not needed, the assembly of parts is simple and quick, the faults are not easy to occur, the parts are clear at a glance, and the maintenance is convenient.
The cam is a disc cam.
The driven piece is a tip type driven piece or a roller type driven piece.
The top type driven piece is of a transverse H-shaped structure, the front end of the short arm at the upper part is downwards bent to be provided with an upper sliding shaft, the front end of the upper sliding shaft is provided with a cone or a sphere, the cone or sphere is in sliding connection with the side wall of the cam, the front end of the short arm at the lower part is downwards bent to be provided with a lower sliding shaft, the upper sliding shaft and the lower sliding shaft are respectively and slidably sleeved in an upper shaft sleeve and a lower shaft sleeve of the rectangular frame, the rectangular frame with the upper shaft sleeve and the lower shaft sleeve is fixed on the ground at two sides of a branch canal through supporting legs, the bottom of the transverse H-shaped structure top type driven piece is transversely provided with a convex part, and the convex part is fixed on the upstream surface of the gate.
The roller type water channel is characterized in that the roller type driven piece is of a transverse 'II' -shaped structure, the front end of the upper short arm is downwards bent to be provided with an upper sliding shaft, the front end of the upper sliding shaft is provided with a roller, the roller is in rolling connection with the side wall of the cam, the front end of the lower short arm is downwards bent to be provided with a lower sliding shaft, the upper sliding shaft and the lower sliding shaft are respectively and slidably sleeved in an upper shaft sleeve and a lower shaft sleeve of the rectangular frame, the rectangular frame with the upper shaft sleeve and the lower shaft sleeve is fixed on the ground on two sides of the branch water channel through supporting legs, and a convex part is transversely arranged at the bottom of the transverse 'II' -shaped structure roller type driven piece in a protruding mode and is fixed on the upstream surface of the gate.
The gate is made of PVC plates, glass fiber reinforced plastic plates, concrete plates or steel plates.
Principle of operation
Referring to fig. 1-6, when water in the main canal flows, the water wheel is driven to rotate, the driving gear is driven to rotate through ase:Sub>A connecting shaft for connecting the water wheel and the driving gear, the driving gear is meshed with the driven gear, when the driving gear rotates, the driven gear also rotates simultaneously, the driven gear and the cam are coaxially connected together, the driven gear rotates simultaneously with the cam, according to the working principle of the cam, when ase:Sub>A follower for connecting the gate moves to an ase:Sub>A-B-ase:Sub>A arc section on the cam, the gate rises to be opened by ase:Sub>A chute of the branch canal, water flow enters ase:Sub>A field through the gate from the branch canal, and the retention time of the follower in the ase:Sub>A-B-ase:Sub>A arc section of the cam is the gate drainage time; when the follower connected with the gate moves to the A-C-A arc section of the cam, the gate is closed along with the descent of the follower, water cannot enter the field from the branch canal through the gate, and the time of the follower staying in the A-C-A arc section of the cam is the water discharge stopping duration; the water wheel always rotates due to the acting force of the continuously flowing water in the main ditch, and the gate is also in the reciprocating motion of opening, closing and opening, so that the aim of intermittently irrigating farmlands without depending on electric power or manpower is truly realized; the diameter of the driven wheel is changed, so that the movement speed of the cam can be easily adjusted, namely the opening-closing period of the gate can be adjusted; the cam is designed into different arc shapes, so that the opening and closing time of the gate can be easily adjusted, and in theory, any time combination of opening and closing of the gate can be realized.
Compared with the traditional ground irrigation, the invention has the advantages of large irrigation uniformity and good water-saving effect; compared with drip irrigation, sprinkling irrigation and the like, the investment is small; the device has the advantages of convenient control of irrigation, simple connection, no need of occupying additional land, material saving and simple operation.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic top view of the present invention.
Fig. 3 is a schematic structural view of the working principle of the cam of the present invention.
Fig. 4 is a partially enlarged schematic view of the follower of the present invention.
Fig. 5 is a schematic view of the overall mechanism of another embodiment of the present invention.
Fig. 6 is an enlarged partial schematic view of a follower according to another embodiment of the present invention.
Detailed Description
Example 1
Referring to fig. 1 to 4, an intermittent water supply device for a channel comprises a main channel 1, a branch channel 2, a water wheel 3, a driving gear 4, a driven gear 5, a cam 6, a follower 7, a gate 8 and a connecting shaft 9;
the branch canal 2 is arranged on the side wall of the main canal 1, the water wheel 3 is rotatably suspended above the canal bottom of the main canal 1, the water wheel 3 is connected with the driving gear 4 through the connecting shaft 9, the driving gear 4 is meshed with the driven gear 5, the driven gear 5 is connected with the cam 6 through a concentric shaft, the gate 8 is in sliding fit in a sliding groove 21 on the side wall of the branch canal 2, and the gate 8 is in linkage fit with the cam 6 through the driven member 7.
The cam 6 is a disc cam.
The follower 7 is a tip follower.
The top follower is of a transverse 'Pi' structure, the front end of the upper short arm 71 is downwards bent to be provided with an upper sliding shaft 711, the front end of the upper sliding shaft 711 is provided with a spherical surface, the spherical surface is in sliding connection with the side wall of the cam 6, the front end of the lower short arm 72 is downwards bent to be provided with a lower sliding shaft 721, the upper sliding shaft 711 and the lower sliding shaft 721 are respectively and slidably sleeved in an upper shaft sleeve 731 and a lower shaft sleeve 732 of the rectangular frame 73, the rectangular frame 73 with the upper shaft sleeve 731 and the lower shaft sleeve 732 is fixed on the ground on two sides of the branch canal 2 through supporting legs, the bottom of the transverse 'Pi' structure top follower is transversely provided with a convex part 74, and the convex part 74 is fixed on the upstream surface of the gate 8.
The gate 8 is made of PVC plate.
Example 2
Referring to fig. 5 to 6, a channel intermittent water supply device is different from embodiment 1 in that the follower 61 is a roller follower.
The roller follower is of a transverse 'Pi' structure, the front end of the upper short arm 71 is downwards bent to be provided with an upper sliding shaft 711, the front end of the upper sliding shaft 711 is provided with a roller, the roller is in rolling connection with the side wall of the cam 6, the front end of the lower short arm 72 is downwards bent to be provided with a lower sliding shaft 721, the upper sliding shaft 711 and the lower sliding shaft 721 are respectively sleeved in an upper shaft sleeve 731 and a lower shaft sleeve 732 of the rectangular frame 73, the rectangular frame 73 with the upper shaft sleeve 731 and the lower shaft sleeve 732 is fixed on the ground on two sides of the branch canal 2 through supporting legs, the bottom of the transverse 'Pi' structure roller follower is transversely provided with a convex part 74, and the convex part 74 is fixed on the upstream surface of the gate 8.
The gate 8 is made of glass fiber reinforced plastic.
As described above, the present invention is not limited to the preferred embodiments and drawings, but is intended to be limited to the structures, features, etc. similar to those of the present invention.
Claims (3)
1. An intermittent water supply device for a channel is characterized in that: the device comprises a main canal, a branch canal, a water wheel, a driving gear, a driven gear, a cam, a driven piece, a gate and a connecting shaft;
the water wheel is connected with the driving gear through a connecting shaft, the driving gear is meshed with the driven gear, the driven gear is connected with the cam through a concentric shaft, the gate is in sliding fit in a chute on the side wall of the branch canal, the gate is in linkage fit with the cam through a driven piece, the cam is a disc-shaped cam, the driven piece is a tip-type driven piece or a roller-type driven piece, the tip-type driven piece is of a transverse H-shaped structure, the front end of the upper short arm is bent downwards to be provided with an upper sliding shaft, the front end of the upper sliding shaft is provided with a cone or a sphere, the cone or sphere is connected with the side wall of the cam in a sliding mode, the front end of the lower short arm is bent downwards to be provided with a lower sliding shaft, the upper sliding shaft and the lower sliding shaft are respectively sleeved in an upper shaft sleeve and a lower shaft sleeve of the rectangular frame, the rectangular frame with the upper shaft sleeve and the lower shaft sleeve are fixed on the ground on two sides of the branch canal through supporting legs, and the bottom of the tip-type driven piece is provided with a convex part in a transverse H-shaped structure, and the convex part is fixed on the upstream surface of the gate.
2. A channel intermittent water supply apparatus according to claim 1, wherein: the roller type water channel is characterized in that the roller type driven piece is of a transverse 'II' -shaped structure, the front end of the upper short arm is downwards bent to be provided with an upper sliding shaft, the front end of the upper sliding shaft is provided with a roller, the roller is in rolling connection with the side wall of the cam, the front end of the lower short arm is downwards bent to be provided with a lower sliding shaft, the upper sliding shaft and the lower sliding shaft are respectively and slidably sleeved in an upper shaft sleeve and a lower shaft sleeve of the rectangular frame, the rectangular frame with the upper shaft sleeve and the lower shaft sleeve is fixed on the ground on two sides of the branch water channel through supporting legs, and a convex part is transversely arranged at the bottom of the transverse 'II' -shaped structure roller type driven piece in a protruding mode and is fixed on the upstream surface of the gate.
3. A channel intermittent water supply apparatus according to claim 1, wherein: the gate is made of PVC plates, glass fiber reinforced plastic plates, concrete plates or steel plates.
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CN201710902829.4A CN107653851B (en) | 2017-09-29 | 2017-09-29 | Intermittent water supply device for channel |
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