CN110878551B

CN110878551B - Water diversion gate device with accurate diversion function on irrigation channel

Info

Publication number: CN110878551B
Application number: CN201911202672.XA
Authority: CN
Inventors: 薛忠强; 覃辉煌; 余奇友; 吴鑫强
Original assignee: Shenzhen Dongshen Engineering Co ltd
Current assignee: Shenzhen Dongshen Engineering Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2021-05-14
Anticipated expiration: 2039-11-29
Also published as: CN110878551A

Abstract

The invention discloses a water distribution gate device with accurate flow distribution function on an irrigation canal, which comprises a rotating shaft vertically arranged at a water distribution port of the irrigation canal and a gate rotatably connected to the rotating shaft, a truss is horizontally arranged on the upper-level irrigation canal and is positioned above the gate, two ends of the truss are fixed on the bank of the irrigation canal, an arc-shaped first rack is fixedly arranged on the truss, a gear meshed with the first rack is connected on the first rack in a rolling way, a first motor is fixedly arranged on the gear, the first motor is fixed on the gate, a second rack is also fixedly arranged on the truss, the gate is vertically fixed with a slide rail, the slide rail is vertically slided and is provided with a limiting block, one side of the limiting block, which is close to the second rack, is provided with a limiting groove matched with the second rack, and the limiting block is provided with a driving piece for driving the limiting block to move up and down. The invention has the effect of accurately distributing water to the lower irrigation canal.

Description

Water diversion gate device with accurate diversion function on irrigation channel

Technical Field

The invention relates to the field of distribution gates, in particular to a distribution gate device with an accurate distribution function on an irrigation canal.

Background

The irrigation canal is a water channel which is led out from a main river through a dam and is used for land irrigation and is mainly used for irrigating farmlands. The irrigation canal system is provided with a plurality of water distribution gates which are built at the bifurcation of the irrigation canal and are used for distributing water quantity and distributing the water from the previous-level canal to the next-level canal according to a certain proportion, and the irrigation canal system has two types of open type and closed type.

Chinese patent No. CN205421210U discloses a novel diversion gate for irrigation channel, which comprises a gate rotating shaft and a gate rotatably connected to the gate rotating shaft, wherein the gate rotating shaft is located at the diversion gate of the irrigation channel. When the gate rotates to a position butted with a river bank, at the moment, one lower irrigation and drainage channel circulates, and the other lower irrigation and drainage channel does not circulate; when the gate rotates to the other bank, the water passing conditions between the two lower-level irrigation ditches are mutually converted.

This kind of novel irrigation canal diversion gate, in the in-service use process, the position state of gate only two, at same moment, only one of two subordinate irrigation canals can lead to water, when two subordinate irrigation canals all need water, at this moment, foretell diversion gate will can't satisfy foretell demand.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the water distribution gate device with the accurate flow distribution function on the irrigation canal.

The technical purpose of the invention is realized by the following technical scheme: a water distribution gate device with accurate flow distribution function on an irrigation canal comprises a rotating shaft vertically arranged at a water distribution port of the irrigation canal and a gate rotatably connected to the rotating shaft, a truss is horizontally arranged on the upper-level irrigation canal and is positioned above the gate, two ends of the truss are fixed on the bank of the irrigation canal, an arc-shaped first rack is fixedly arranged on the truss, a gear meshed with the first rack is connected on the first rack in a rolling way, a first motor is fixedly arranged on the gear, the first motor is fixed on the gate, a second rack is also fixedly arranged on the truss, the gate is vertically fixed with a slide rail, the slide rail is vertically slided and is provided with a limiting block, one side of the limiting block, which is close to the second rack, is provided with a limiting groove matched with the second rack, and the limiting block is provided with a driving piece for driving the limiting block to move up and down.

According to the technical scheme, the upper-level irrigation channel is provided with the truss stretching across the irrigation channel, one end of the gate, which is far away from the rotating shaft, is limited on the truss, so that the free end of the gate, which is far away from the rotating shaft, is restrained, and the stability of the gate is improved due to the arrangement of the truss; when the gate rotates to different positions of the truss, the water flow of the two irrigation channels at the lower stage is different, and the water flow of the irrigation channels can be adjusted according to the actual downstream water use condition; the first motor has a self-locking function, so that the self-locking function is convenient, and the rotated gate can be locked; the limiting block is inserted into the second rack, and the gate is further prevented from rotating in a mechanical locking mode, so that the stability of the gate is improved.

The invention is further configured to: the gate comprises a first partition plate and a second partition plate which are the same, the gears are two in number and are respectively arranged on the first partition plate and the second partition plate, and the first motors are also two in number and are respectively connected with the gears.

Through above-mentioned technical scheme, when the low stream does not need water, first division board and second division board respectively with the bank contact of higher level irrigation canal to on the complete shutoff of higher level irrigation canal. And the two partition plates can move to any position on the first rack, so that the water flow of two irrigation ditches at a lower stage can be reduced simultaneously.

The invention is further configured to: the upper and lower both sides of first division board all are equipped with the picture peg of the U-shaped of cooperation simultaneously on first division board and on the second division board, from top to bottom be equipped with the double-end motor who fixes on first division board between the picture peg, vertical fixed threaded rod that is equipped with on the picture peg, all be equipped with threaded connection thread bush on the threaded rod on two output shafts of double-end motor, two the thread bush is opposite screw thread.

Through above-mentioned technical scheme, under most circumstances, first division board and second division board are together laminated together during. When the first partition plate and the second partition plate are clamped in the middle by the inserting plate, the first partition plate and the second partition plate are prevented from being separated at the moment, and the first partition plate and the second partition plate are locked together through a mechanical structure. The double-end motor is used for driving the threaded rods to rotate, so that the two threaded rods move in the threaded sleeves along the directions of mutual approaching or mutual leaving, the inserting plates further approach or mutually leave, and the inserting plates are automatically inserted into the first separating plate and the second separating plate.

The invention is further configured to: the plug board is a plurality of and corresponds the setting from top to bottom, be equipped with the diaphragm between plug board and the threaded rod, plug board and threaded rod are fixed respectively in the upper and lower both sides of diaphragm.

Through above-mentioned technical scheme, the picture peg has a plurality ofly, improves the ability to first division board and second division board locking. The transverse plate is used for connecting all the inserting plates, so that all the inserting plates on the same side can move up and down simultaneously.

The invention is further configured to: stopper, slide rail and driving piece all set up two, the slide rail is fixed the setting respectively on the first division board and on the second division board, the stopper slides respectively and connects on the slide rail, the driving piece drives the stopper respectively and slides from top to bottom.

Through the technical scheme, the sliding rail is used for limiting the limiting block to move only up and down, so that the limiting block is perpendicular to the horizontal swing of the gate, an interlocking structure is formed, and the locking effect on the gate is achieved. Because the gate comprises the first partition plate and the second partition plate, and the number of the limiting blocks is two, the first partition plate and the second partition plate can be respectively locked.

The invention is further configured to: the driving piece comprises a third motor and a screw rod fixed on the third motor, the screw rod is in threaded connection with the limiting block, and the third motor is respectively fixed on the first partition plate or the second partition plate.

Through the technical scheme, when the third motor works, the screw rod is driven to rotate, and the limiting block is made to slide on the screw rod, so that the effect of automatically driving the limiting block to move up and down is achieved.

The invention is further configured to: irrigate the bank of canal be equipped with gate complex location layer, it is equipped with a plurality of spacing posts to slide along the direction of perpendicular to locating surface on the location layer, seted up on the gate with spacing post complex jack, vertically in the location layer be equipped with the connecting plate, it is a plurality of spacing post is fixed on the connecting plate is kept away from one side of spacing post and is improved level and be equipped with the swivel nut, it is equipped with the second motor to inlay in the location layer, the fixed screw rod that is equipped with threaded connection in the swivel nut on the output shaft of second motor.

Through above-mentioned technical scheme, when the side laminating of gate and location layer, break away from each other under long-time water impact in order to prevent gate and location layer, consequently set up spacing post, when spacing post is pegged graft on the gate, spacing post glide direction is the linear direction, forwards the removal during the gate, consequently plays the effect of locking to the gate. The second motor is used for driving the screw rod to rotate, so that the threaded sleeve, the connecting plate and the limiting column can be automatically inserted into the gate or separated from the gate.

The invention is further configured to: the positioning layer is vertically provided with an access hole, the second motor is fixed at the bottom of the access hole, the threaded sleeve is T-shaped and is inserted into the connecting plate, the thick end of the threaded sleeve is positioned on one surface of the connecting plate, which is far away from the second motor, and the positioning layer is provided with a through hole for taking out the threaded sleeve.

Through above-mentioned technical scheme, the manhole is arranged in being convenient for take out the second motor from the location layer. The through hole is convenient for take out the swivel nut from the connecting plate, and further the swivel nut is convenient for break away from with the lead screw to can not hinder the second motor to take out from the location layer.

The invention is further configured to: the bottom of irrigating the canal is equipped with curved guide rail, be equipped with the bearing wheel of roll connection on the guide rail on the lower surface of gate.

Through above-mentioned technical scheme, the bearing wheel is used for alleviateing the frictional force that needs overcome when the gate removes, and the gate of being convenient for removes.

The invention is further configured to: the vertical two V-shaped check blocks in the bottom of the irrigation and drainage canal are used, and when the gate is in contact with the bank of the irrigation canal, the side wall of the gate is abutted against the side face of the check block.

Through above-mentioned technical scheme, certain clearance is left with the bottom of irrigating the canal to the gate, consequently can have the condition of infiltration, and when the bank contact of gate and irrigation canal, play the effect of sealing up water to subordinate's irrigation canal, the laminating of gate and baffle this moment effectively prevents the infiltration like this.

In conclusion, the invention has the following beneficial effects:

1. the arrangement of the limiting block enables the gate to stay at any position on the first rack, so that the water distribution of the lower irrigation channel can be accurately adjusted;

2. the arrangement of the first partition plate and the second partition plate can seal the upper-level irrigation channel or simultaneously reduce the water flow of the lower-level irrigation channel;

3. the stability of gate is improved in the setting of truss.

Drawings

Fig. 1 is an overall configuration diagram of the present embodiment.

Fig. 2 is a schematic structural view of the first partition plate and the second partition plate of the present embodiment being separated.

Fig. 3 is a plan view of the girders and the gates of this embodiment.

Fig. 4 is a schematic structural view of the entire gate and the truss of the embodiment.

Fig. 5 is a schematic structural diagram of the limiting column, the positioning layer and the gate of the embodiment.

Reference numerals: 1. a truss; 11. cement piles; 12. a first rack; 13. a gear; 14. a first motor; 15. a support bar; 16. a positioning layer; 161. an access hole; 162. a through hole; 163. a slide chamber; 2. a gate; 20. a rotating shaft; 21. a first partition plate; 22. a second partition plate; 23. a guide rail; 24. a load-bearing wheel; 25. a jack; 3. a limiting block; 31. a drive member; 311. a third motor; 312. a screw rod; 32. a fixed block; 33. a slide rail; 34. a limiting groove; 35. a second rack; 4. inserting plates; 41. a transverse plate; 42. a threaded rod; 43. a threaded sleeve; 44. a double-headed motor; 5. a limiting column; 51. a connecting plate; 52. a threaded sleeve; 53. a screw; 54. a second motor; 6. and a stop block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): referring to fig. 1 and 2, a distribution gate device with an accurate distribution function on an irrigation canal includes a rotating shaft 20 vertically disposed between an irrigation canal a and an irrigation canal B, and a gate 2 rotatably connected to the rotating shaft 20. Set up truss 1 that spanes irrigation canal C on irrigation canal C, the one end that pivot 20 was kept away from to gate 2 is spacing on truss 1, and the stability of gate 2 is improved in the setting of truss 1. When the gate 2 rotates to different positions of the truss 1, the water flow between the irrigation channel A and the irrigation channel B is different, and the water flow between the irrigation channel A and the irrigation channel B can be adjusted according to the downstream actual water use condition. When the gate 2 is close to the irrigation channel A, the water flow of the irrigation channel B is large, and the water flow of the irrigation channel A is small; otherwise, the opposite is true.

Referring to fig. 1 and 2, cement piles 11 are provided on both banks of the irrigation canal C, and both ends of the girder 1 are fixed to the cement piles 11. Truss 1 establishes to the arc, welds curved first rack 12 on truss 1, all rotates in the both sides of gate 2 and is connected with gear 13, and two gear 13 all with first rack 12 intermeshing, all set up first motor 14 on gear 13, and first motor 14 is fixed respectively in the both sides of gate 2. When the output shaft of first motor 14 is synchronous and when the syntropy rotated, drive gear 13 and rotate, gear 13 rolls on first rack 12 this moment to drive gate 2 and remove on truss 1, and utilize the self-locking function of first motor 14, make gate 2 stop in truss 1's arbitrary position, thereby can be more accurate carry out water distribution to irrigation canal A and irrigation canal B.

Referring to fig. 4, two support rods 15 are welded to the top end of the rotating shaft 20, and the ends of the support rods 15 far away from the rotating shaft 20 are respectively welded to the two ends of the truss 1, so that the rotating shaft 20 is fixed.

Referring to fig. 1 and 2, the floodgate 2 includes a first partition plate 21 and a second partition plate 22, gears 13 are installed on the first partition plate 21 and the second partition plate 22, respectively, and the first motor 14 is fixed on the first partition plate 21 and the second partition plate 22, respectively. When the first motor 14 rotates in the same direction, the first partition plate 21 and the second partition plate 22 move in the same direction; when the two first motors 14 are rotated in the reverse directions, the first and

second partition plates

21 and 22 are moved away from or close to each other so that the first and

second partition plates

21 and 22 can be rotated independently. When the downstream of the irrigation canal a and the irrigation canal B requires a small amount of water or even no water, the two first motors 14 drive the first partition plate 21 and the second partition plate 22 to approach to the two banks of the irrigation canal, so that the water flow of the irrigation canal a and the irrigation canal B can be reduced at the same time.

Referring to fig. 3 and 4, most of the time, the first and

second partition plates

21 and 22 are together, and the first and

second partition plates

21 and 22 are locked together by means of the first motor 14, which affects the service life of the first motor 14. Therefore, the U-shaped insertion plates 4 are slidably arranged at the upper end and the lower end of the first partition plate 21 along the vertical direction, and the insertion plates 4 are used for clamping the first partition plate 21 and the second partition plate 22 in the middle and preventing the first partition plate 21 and the second partition plate 22 from being separated from each other. The picture peg 4 has a plurality ofly to upper and lower one-to-one, the picture peg 4 of same side is improved level and is set up diaphragm 41, diaphragm 41 slides and connects the side at first division board 21, set up double-end motor 44 between two diaphragm 41 from top to bottom, double-end motor 44 is fixed on first division board 21, at the equal fixed connection thread bush 43 in the both ends of double-end motor 44, the vertical fixed threaded rod 42 that is equipped with of one side that is close to thread bush 43 on diaphragm 41, threaded rod 42 threaded connection is in thread bush 43, two thread bushes 43 are opposite screw. When the double-headed motor 44 is operated, the threaded bush 43 is rotated, and the threaded rod 42 is moved in the threaded bush 43. When the two threaded rods 42 move relatively, the two transverse plates 41 are driven to approach each other; when the two threaded rods 42 are moved back, the two transverse plates 41 move away from each other, so that the insert plate 4 is separated from the first partition plate 21 and the second partition plate 22, and at the same time, the insert plate 4 no longer fixes the first partition plate 21 and the second partition plate 22 together, so that the first partition plate 21 and the second partition plate 22 are separated from each other.

Referring to fig. 3 and 4, arc-shaped second rack 35 is welded on truss 1, fixing block 32 is welded on the face of first partition plate 21 and second partition plate 22 which face away from each other, sliding rail 33 is welded on fixing block 32 vertically, sliding rail 33 slides on sliding rail 3 to form limiting block 3, limiting groove 34 clamped with second rack 35 is arranged on one side of limiting block 3 close to second rack 35, driving piece 31 is arranged on first partition plate 21 and on second partition plate 22, and driving piece 31 is used for driving limiting block 3 to move up and down automatically. When the limiting block 3 moves upwards, the limiting block 3 is clamped on the second rack, and at the moment, the first partition plate 21 or the second partition plate 22 cannot move, so that the first partition plate 21 or the second partition plate 22 is locked; on the contrary, when the stopper 3 is disengaged from the second rack 35, the first partition plate 21 and the second partition plate 22 can move. The driving member 31 includes a third motor 311 fixed on the first partition plate 21 and the second partition plate 22, and a lead screw 312 fixed on the third motor 311, wherein the lead screw 312 is connected to the stopper 3 by screw threads. When the third motor 311 drives the screw rod 312 to rotate, the third motor can slide on the screw rod 312, so that the limiting block 3 can be automatically inserted into the second rack 35 and automatically separated from the second rack 35.

Referring to fig. 1 and 2, an arc-shaped guide rail 23 is provided at the bottom of the irrigation canal C, a bearing wheel 24 is connected to the guide rail 23 in a rolling manner, a bearing wheel 24 is provided on the bearing wheel 24, and two bearing wheels 24 are provided and are respectively mounted on the first partition plate 21 and the second partition plate 22, so that the friction between the first partition plate 21 and the second partition plate 22 and the ground is reduced. Set up two dog 6 at the end of irrigation canal C's the canal, the lower extreme of gate 2 is less than the height of dog 6 from the interval of irrigation canal's bottom, and when gate 2 touched irrigation canal C's bank, gate 2's side and dog 6 contacted prevented the river from flowing out from the gap of gate 2 lower extreme like this.

Referring to fig. 2 and 5, a positioning layer 16 is vertically provided on the bank of the irrigation canal, and when the gate 2 touches the bank of the irrigation canal C, the side surface of the gate 2 abuts against the side surface of the positioning layer 16 at this time, and the river water is prevented from flowing out from the gap between the gate 2 and the positioning layer 16. The positioning layer 16 is formed by pouring cement concrete, a plurality of limiting columns 5 are arranged on the abutting surface of the positioning layer 16 and the gate 2, the limiting columns 5 are connected in the positioning layer 16 in a sliding mode along the direction perpendicular to the positioning layer 16, and a plurality of jacks 25 matched with the limiting columns 5 are formed in the gate 2. When gate 2 contacts with location layer 16, spacing post 5 pegs graft in jack 25 to spacing gate 2 prevents that the position of gate 2 from squinting under the effect of rivers.

Referring to fig. 5, a sliding cavity 163 is formed in the positioning layer 16, a connecting plate 51 slidably connected in the sliding cavity 163 is vertically arranged at one end of each limiting column 5 far away from the gate 2, all the limiting columns 5 are fixedly connected to the connecting plate 51, a T-shaped threaded sleeve 52 is arranged in the middle of the connecting plate 51 in a direction perpendicular to the connecting plate 51, the threaded sleeve 52 penetrates through the connecting plate 51, the thick end of the threaded sleeve 52 abuts against the connecting plate 51, a bolt is arranged at the thick end of the threaded sleeve 52, and the threaded sleeve 52 is fixed on the connecting plate 51 through the bolt. A second motor 54 is embedded in the positioning layer 16, the second motor 54 is arranged on one side of the connecting plate 51 far away from the limiting column 5, a screw 53 is arranged on an output shaft of the second motor 54, and the screw 53 is in threaded connection with the threaded sleeve 52. When the second motor 54 is operated, the screw 53 is rotated, so that the threaded sleeve 52 moves on the screw 53. The swivel nut 52 is integrative with connecting plate 51, further drives connecting plate 51 and spacing post 5 and removes, and then realizes inserting spacing post 5 on gate 2 automatically, and second motor 54 realizes swivel nut 52, connecting plate 51 and spacing post 5's reciprocating motion through just reversing, further realizes that spacing post 5 can break away from with gate 2 is automatic.

Referring to fig. 5, a through hole 162 is formed in the positioning layer 16 on the surface abutting against the shutter 2, and the through hole 162 is larger than the thick end of the screw sleeve 52, so that the screw sleeve 52 can be detached from the connecting plate 51. A manhole 161 is also vertically opened in the positioning layer 16, and the second motor 54 is located at the bottom of the manhole 161. When the second motor 54 is damaged, the screw sleeve 52 is removed from the connecting plate 51, and then the second motor 54 is taken out of the manhole 161. The bottom wall of the access hole 161 is vertically provided with a positioning column, and the positioning column is used for being inserted into the second motor 54 to limit the horizontal displacement of the second motor 54. When the positioning layer 16 is built, a box body is arranged outside the connecting plate 51, a square baffle plate is arranged in the access hole 161 before the concrete layer is not solidified in advance, the limiting column 5 penetrates through the box body and is connected to the box body in a sliding mode, and finally the concrete is poured on the box body, so that a specific cavity shape can be formed in the positioning layer 16.

The implementation principle of the above embodiment is as follows: the gate 2 can move any position on the truss 1 through the first motor 14, the gear 13 and the first rack 12, so that the water distribution of the lower irrigation canal can be accurately adjusted; after the position of the gate 2 is adjusted, the gate 2 is mechanically locked through the limiting block 3 and the second rack, and the gate 2 is not moved after the position is adjusted. When water is not needed at the downstream, the first partition plate 21 and the second partition plate 22 are independently rotated to completely block the upper-level irrigation canal.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a divide floodgate device with accurate reposition of redundant personnel function on irrigation canal, includes that vertical setting connects gate (2) on pivot (20) in pivot (20) with rotating in pivot (20) of irrigation canal delivery port department, its characterized in that: a truss (1) is horizontally arranged on a higher level irrigation channel, the truss (1) is located above a gate (2), two ends of the truss (1) are fixed on the bank of the irrigation channel, a curved first rack (12) is fixedly arranged on the truss (1), a gear (13) meshed with the first rack (12) is connected to the first rack (12) in a rolling mode, a first motor (14) is fixedly arranged on the gear (13), the first motor (14) is fixed on the gate (2), a second rack (35) is further fixedly arranged on the truss (1), a sliding rail (33) is vertically fixed on the gate (2), a limiting block (3) is vertically arranged on the sliding rail (33) in a sliding mode, a limiting groove (34) matched with the second rack (35) is arranged on one side, close to the second rack (35), of the limiting block (3), and a driving piece (31) used for driving the limiting block (3) to move up and down is arranged on the limiting block (3), the gate (2) comprises a first partition plate (21) and a second partition plate (22) which are identical, the gears (13) are two in number and are respectively installed on the first partition plate (21) and the second partition plate (22), and the first motors (14) are also two in number and are respectively connected with the gears (13).

2. The shunt gate device with accurate shunt function on the irrigation canal of claim 1, wherein: the upper and lower both sides of first division board (21) all are equipped with and cooperate simultaneously picture peg (4) of the U-shaped on first division board (21) and second division board (22), from top to bottom be equipped with between picture peg (4) and fix double-end motor (44) on first division board (21), vertical fixed threaded rod (42) that are equipped with is gone up in picture peg (4), all be equipped with threaded connection on threaded rod (42) on two output shafts of double-end motor (44), two thread bush (43) are opposite screw thread.

3. The shunt gate device with accurate shunt function on the irrigation canal of claim 2, wherein: the inserting plate (4) is multiple and is arranged up and down correspondingly, a transverse plate (41) is arranged between the inserting plate (4) and the threaded rod (42), and the inserting plate (4) and the threaded rod (42) are fixed on the upper side and the lower side of the transverse plate (41) respectively.

4. The shunt gate device with accurate shunt function on the irrigation canal according to claim 1 or 3, wherein: stopper (3), slide rail (33) and driving piece (31) all set up two, slide rail (33) are fixed the setting respectively on first division board (21) and second division board (22), stopper (3) slide respectively and connect on slide rail (33), driving piece (31) drive stopper (3) respectively and slide from top to bottom.

5. The shunt gate device with accurate shunt function on the irrigation canal of claim 4, wherein: the driving piece (31) comprises a third motor (311) and a screw rod (312) fixed on the third motor (311), the screw rod (312) is in threaded connection with the limiting block (3), and the third motor (311) is respectively fixed on the first partition plate (21) or the second partition plate (22).

6. The shunt gate device with accurate shunt function on the irrigation canal of claim 1, wherein: irrigate the bank of canal and be equipped with and gate (2) complex location layer (16), the direction of following perpendicular to location layer (16) on location layer (16) is slided and is equipped with a plurality of spacing post (5), set up on gate (2) with spacing post (5) complex jack (25), vertically in location layer (16) be equipped with connecting plate (51), a plurality of spacing post (5) are fixed on connecting plate (51) the one side that spacing post (5) were kept away from in connecting plate (51) is improved level and is equipped with swivel nut (52), inlay in location layer (16) and be equipped with second motor (54), fixed screw rod (53) of threaded connection in swivel nut (52) that are equipped with on the output shaft of second motor (54).

7. The shunt gate device with accurate shunt function on the irrigation canal of claim 6, wherein: an access hole (161) is vertically formed in the positioning layer (16), the second motor (54) is fixed to the bottom of the access hole (161), the threaded sleeve (52) is T-shaped and is connected to the connecting plate (51) in an inserting mode, the thick end of the threaded sleeve (52) is located on one face, away from the second motor (54), of the connecting plate (51), and a through hole (162) used for taking out the threaded sleeve (52) is formed in the positioning layer (16).

8. The shunt gate device with accurate shunt function on the irrigation canal of claim 1, wherein: the bottom of the irrigation canal is provided with an arc-shaped guide rail (23), and the lower surface of the gate (2) is provided with a bearing wheel (24) which is connected with the guide rail (23) in a rolling way.

9. The shunt gate device with accurate shunt function on the irrigation canal of claim 8, wherein: two vertical V-shaped check blocks (6) are arranged at the bottom of the irrigation and drainage canal, and when the gate (2) is in contact with the bank of the irrigation canal, the side wall of the gate (2) is abutted against the side face of the check block (6).