CN117569268A - Electric servo lifting type water conservancy gate - Google Patents

Abstract

The invention relates to the technical field of water conservancy gates, and discloses an electric servo lifting type water conservancy gate. The electric servo lifting type water conservancy gate comprises a servo motor, a water back gate plate, a water facing gate plate, a transmission structure, an air suction structure and an air outlet structure, wherein the transmission structure, the air suction structure and the air outlet structure are movably arranged between the water back gate plate and the water facing gate plate, a transmission rod in the transmission structure is in transmission connection with a plug rod connected to a piston through the transmission plate, after the servo motor drives the water facing gate plate and the water back gate plate to move upwards to open a water channel, water in the water channel flows to the other side of the gate through the gate, and drives an impeller in the transmission structure to rotate, so that the impeller is driven to continuously rotate by utilizing kinetic energy of water flow, the piston continuously moves up and down, continuous air suction and exhaust are realized, continuous impact on deposited mud and impurities on the water facing side of the gate is realized, and the influence of the deposited mud and impurities on the water flow is effectively avoided.

Description

Electric servo lifting type water conservancy gate

Technical Field

The invention relates to the technical field of water conservancy gates, in particular to an electric servo lifting type water conservancy gate.

Background

The gate is used for closing and opening the control means of the water discharge channel. Important components of the hydraulic building can be used for intercepting water flow, controlling water level, regulating flow, discharging sediment, floating objects and the like. The lifting of the gate plate can realize the opening and closing control of the gate.

The gate can also be used for controlling the opening and closing of the agricultural irrigation channel, but because the water flow in the agricultural irrigation channel is relatively smaller, the drop is small and the flow speed of the water flow is relatively slower compared with other water channels (such as river channels), mud and sundries discharged from the upstream or farmland are easy to deposit on the water facing side of the gate when the gate is closed, and a blockage is formed, so that the flow of the water flow is influenced after the gate is opened.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the invention provides an electric servo lifting type water conservancy gate which has the advantages of continuously exhausting air by utilizing the kinetic energy of water flow, continuously impacting deposited mud and impurities, automatically cleaning mud and impurities on the water facing side of the gate, and effectively solving the problems in the background art.

(II) technical scheme

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an electric servo over-and-under type water conservancy gate, including frame and crossbeam, the bottom fixedly connected with back water flashboard and the water flashboard that meets at the crossbeam, the water flashboard that meets sets up in the one side of back water flashboard, be provided with transmission structure between back water flashboard and the water flashboard that meets, the structure of giving vent to anger and install in transmission structure's lower part, the structure of giving vent to anger has a plurality of decurrent air outlet ends and an upturned inlet end, the structure of giving vent to anger installs in transmission structure's one side and links to each other with the inlet end of structure of giving vent to anger, the structure of giving vent to anger is connected with transmission structure transmission, be connected with the exhaust tube in the one end that the structure kept away from of giving vent to anger, exhaust tube slidable mounting is in back water flashboard and water flashboard, fixedly connected with servo motor in one side of the top of frame, it runs through the frame and fixedly connected with drive bevel gear to drive the output end of servo motor, drive bevel gear meshes with drive bevel gear, the top fixedly connected with lifting stud runs through the frame on top of crossbeam, lifting stud thread cover locates lifting stud.

Preferably, the back water flashboard comprises a back water plate, the back water plate is fixed at the bottom end of the cross beam, a first sliding groove, a first storage groove and a first guide groove are formed in the back water plate towards one end of the back water flashboard, the first storage groove is communicated with the lower side of the first sliding groove and penetrates through the bottom end of the back water plate, the first guide groove is communicated with the upper side of the first sliding groove, and a second sliding groove is formed in the first sliding groove towards one groove wall surface of the back water flashboard.

Preferably, the water-facing gate plate comprises a water-facing plate, a third chute, a second containing groove and a second guide groove are formed in one end of the water-facing plate, facing the back water gate plate, the second containing groove is communicated with the lower side of the third chute and penetrates through the bottom end of the water-facing plate, the second guide groove is communicated with the upper side of the third chute and is matched with the first guide groove, and a fourth chute is formed in one groove wall surface of the third chute, facing the back water gate plate; an air inlet hole is formed in the top of the second guide groove, and penetrates through one end of the water facing plate, which is far away from the back water flashboard.

Preferably, the transmission structure comprises a cover plate arranged in the third chute in a sliding manner and a seat plate arranged in the first chute in a sliding manner, wherein the cover plate is fixed at one end of the seat plate through a bolt, a water inlet into which water flows is arranged on the cover plate in a penetrating manner, a water outlet from which water flows out is arranged on the seat plate in a penetrating manner, an installation cylinder is connected in the water inlet and the water outlet in a rotating manner, an impeller is fixedly connected to the inner side of the installation cylinder, a gear ring is fixedly sleeved on the outer side of the installation cylinder, the gear ring is rotatably arranged at one end of the seat plate facing the cover plate, a transmission gear is meshed with one side of the gear ring, the transmission gear is rotatably connected with one end of the seat plate facing the cover plate through a shaft, a connecting shaft is embedded on the transmission gear, a transmission rod is movably sleeved on the connecting shaft, and the top of the transmission rod extends to the upper part of the seat plate.

Preferably, two support blocks are respectively fixed on two sides of the bottom end of the seat plate, and the two support blocks are arranged in the first storage groove and the second storage groove; a first sliding block is fixedly connected to the upper side of one end, far away from the seat plate, of the cover plate, a second sliding block is fixedly connected to the upper side of one end, far away from the cover plate, of the seat plate, and the first sliding block and the second sliding block are respectively arranged in a fourth sliding groove and a second sliding groove in a sliding manner; the water inlet is a horn mouth, and the small end of the water inlet faces the mounting cylinder.

Preferably, the top wall of the first chute and the top wall of the third chute are fixedly connected with springs together, and the bottom ends of the springs are fixed with the top ends of the cover plate and the seat plate.

Preferably, the air extraction structure comprises a cylinder body, the cylinder body is fixed on one outer vertical surface of the seat plate and is positioned between the first chute and the third chute, a piston is arranged in the cylinder body in a sliding manner, the top of the piston is fixedly connected with a plug rod, the top of the plug rod penetrates through the cylinder body and extends to the upper part of the cylinder body, the top of the plug rod is fixedly connected with a transmission plate, and the transmission plate and the transmission rod are movably connected together through a shaft; the air outlet of the air exhaust pipe is connected with the outer vertical surface of the cylinder body and is communicated with the inner cavity of the cylinder body.

Preferably, the exhaust pipe is provided with a one-way valve, the exhaust pipe is movably arranged in the first guide groove and the second guide groove, the one-way valve is arranged in the first guide groove and the third guide groove, and the air outlet of the one-way valve faces downwards.

Preferably, the air outlet structure comprises a connecting pipe penetrating through the two support blocks, an air duct is arranged on the upper side of the connecting pipe in a communicating manner, a second one-way valve is arranged on the air duct, an air outlet of the second one-way valve faces downwards, and an air inlet of the air duct is connected to the bottom end of the cylinder body and is communicated with the inner cavity of the cylinder body; a plurality of air outlet pipes are communicated with the connecting pipe, and the inclination of the air outlet pipes is downward.

Preferably, the air outlet pipe is movably arranged in the second storage groove, and the air outlet direction of the air outlet pipe is far away from the back water flashboard.

Compared with the prior art, the invention provides an electric servo lifting type water conservancy gate, which has the following beneficial effects:

this water conservancy gate, through setting up transmission structure, exhaust structure and structure of giving vent to anger, it opens the water course to drive the upward movement of water-facing flashboard and back water flashboard at servo motor, the water in the water course flows the opposite side of gate through the gate, utilize the kinetic energy that rivers possess to drive the impeller and continue to rotate, realize that the piston lasts and reciprocate, realize continuously exhausting, thereby realize carrying out continuous impact to mud, the impurity of deposit, realize being located the automatic clearance of mud, the impurity of gate water-facing side, effectively avoid the mud of deposit, the impurity is to the influence of water flow.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of a portion of the structure of the present invention;

FIG. 4 is a schematic view of the overall structure of the back water gate plate of the present invention;

FIG. 5 is a schematic view of the overall structure of the water-ward gate of the present invention;

FIG. 6 is a structural development of the transmission structure of the present invention;

FIG. 7 is a cross-sectional view of the transmission structure of the present invention;

FIG. 8 is a schematic diagram of the structure of the air extraction structure and the air outlet structure of the present invention;

FIG. 9 is a schematic diagram of the connection of the transmission structure, the pumping structure and the air outlet structure of the present invention;

fig. 10 is a cross-sectional view of the connection of the transmission structure, the back water gate and the water-ward gate of the present invention.

Wherein: 1. a base; 2. a cross beam; 3. a water back flashboard; 4. a water-facing flashboard; 5. a transmission structure; 6. an air extraction structure; 7. an air outlet structure; 8. an exhaust pipe; 81. a first check valve; 9. a spring; 10. a servo motor; 11. driving a bevel gear; 12. a drive bevel gear; 13. lifting a stud; 31. a back water plate; 32. a first chute; 33. a second chute; 34. a first storage groove; 35. a first guide groove; 41. a water-facing plate; 42. a third chute; 43. a fourth chute; 44. a second storage groove; 45. a second guide groove; 46. an air inlet hole; 51. a cover plate; 511. a first sliding block; 512. a water inlet; 52. a seat plate; 521. a second slide block; 522. a water outlet; 53. a mounting cylinder; 54. an impeller; 55. a gear ring; 56. a transmission gear; 57. a connecting shaft; 58. a transmission rod; 59. a support block; 61. a cylinder; 62. a piston; 63. a plug rod; 64. a drive plate; 71. a connecting pipe; 72. an air duct; 721. a second check valve; 73. and an air outlet pipe.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-10, an electric servo lifting type water conservancy gate comprises a base 1 and a cross beam 2, wherein a water back gate plate 3 and a water back gate plate 4 are fixedly connected to the bottom end of the cross beam 2, the water back gate plate 4 is arranged on one side of the water back gate plate 3, a transmission structure 5, an air suction structure 6 and an air outlet structure 7 are arranged between the water back gate plate 3 and the water back gate plate 4, the air outlet structure 7 is arranged on the lower part of the transmission structure 5, the air outlet structure 7 is provided with a plurality of downward air outlet ends and an upward air inlet end, the air suction structure 6 is arranged on one side of the transmission structure 5 and is connected with the air inlet end of the air outlet structure 7, the air suction structure 6 is in transmission connection with the transmission structure 5, one end of the air suction structure 6 far away from the transmission structure 5 is connected with an air suction pipe 8, the air suction pipe 8 is slidably arranged on one side of the water back gate plate 3 and the water back gate plate 4, a servo motor 10 is fixedly connected on one side of the top end of the base 1, a transmission stud 12 is embedded on the other side of the top end of the base 1, an output end of the servo motor 10 penetrates the base 1 and is fixedly connected with a driving bevel gear 11, the bevel gear 11 is fixedly connected with the bevel gear 12, the bevel gear 11 is meshed with the bevel gear 2 and is fixedly connected with the driving end 13, the bevel gear is meshed with the bevel gear 2 and the bevel gear is connected with the lifting stud 13; the servo motor 10 drives the driving bevel gear 11 to rotate, and drives the lifting stud 13 to move up and down through the transmission bevel gear 12, so that the cross beam 2, the back water flashboard 3 and the water-facing flashboard 4 move up and down, and the water channel is closed and opened.

As a further explanation of the above technical solution, the water back flashboard 3 includes a water back plate 31, the water back plate 31 is fixed at the bottom end of the cross beam 2, a first sliding groove 32, a first storage groove 34 and a first guiding groove 35 are provided at one end of the water back plate 31 facing the water back plate 4, the first storage groove 34 is communicated with the lower side of the first sliding groove 32 and penetrates through the bottom end of the water back plate 31, the first guiding groove 35 is communicated with the upper side of the first sliding groove 32, and a second sliding groove 33 is provided on one groove wall surface of the first sliding groove 32 facing the water back plate 4.

The water-facing gate plate 4 comprises a water-facing plate 41, the water-facing plate 41 is fixed at the bottom end of the cross beam 2, a third chute 42, a second containing groove 44 and a second guide groove 45 are formed in one end, facing the water-backing gate plate 3, of the water-facing plate 41, the second containing groove 44 is communicated with the lower side of the third chute 42 and penetrates through the bottom end of the water-facing plate 41, the second guide groove 45 is communicated with the upper side of the third chute 42 and is matched with the first guide groove 35, and a fourth chute 43 is formed in one groove wall surface, facing the water-backing gate plate 3, of the third chute 42; an air inlet hole 46 is formed in the top of the second guide groove 45, and the air inlet hole 46 penetrates through one end, far away from the back water flashboard 3, of the water-facing plate 41.

The opposite surfaces of the water facing plate 41 and the back water plate 31 are mutually attached, and air outside the water facing plate 41 can enter the first guide groove 35 and the second guide groove 45 through the air inlet holes 46.

As a further explanation of the above technical solution, the transmission structure 5 includes a cover plate 51 slidably disposed in the third chute 42 and a seat plate 52 slidably disposed in the first chute 32, the cover plate 51 and the seat plate 52 slide vertically, the cover plate 51 is fixed to one end of the seat plate 52 by bolts, a water inlet 512 into which water flows is penetrated through the cover plate 51, a water outlet 522 through which water flows out is penetrated through the seat plate 52, a mounting cylinder 53 is rotatably connected in the water inlet 512 and the water outlet 522, an impeller 54 is fixedly connected in the inner side of the mounting cylinder 53, the water inlet 512 is a bell mouth, the small end of the water inlet 512 faces the mounting cylinder 53, the cover plate 51 and the seat plate 52 slide downwards during the process of lifting the back water plate 31 and the head water plate 41 by the servo motor 10 to open a water channel, the water inlet 512 and the water outlet 522 are submerged in water, the water in the water channel enters the mounting cylinder 53 through the water inlet 512 and is discharged from the water outlet 522, the inner diameter of a channel through which water passes through the water inlet 512 is gradually reduced, the flow rate of the water is gradually increased, the water enters the mounting cylinder 53 from the water inlet 512, and the impeller 54 is rotatably driven by the impeller 54 after the water inlet 512 is driven to rotate, and the impeller 53 is rotatably driven in the water inlet 53; the gear ring 55 is fixedly sleeved on the outer side of the mounting barrel 53, the gear ring 55 is rotatably arranged on one end, facing the cover plate 51, of the seat plate 52, the transmission gear 56 is meshed with one side of the gear ring 55, the transmission gear 56 is rotatably connected with one end, facing the cover plate 51, of the seat plate 52 through a shaft, the transmission gear 56 is embedded with the connecting shaft 57, the connecting shaft 57 is movably sleeved with the transmission rod 58, the mounting barrel 53 rotates to synchronously drive the gear ring 55 to rotate, and the transmission gear 56 is driven to rotate, so that the transmission rod 58 is driven to reciprocate up and down. The top of the drive rod 58 extends above the seat plate 52.

Further, two supporting blocks 59 are respectively fixed at two sides of the bottom end of the seat plate 52, and the two supporting blocks 59 are respectively arranged in the first containing groove 34 and the second containing groove 44; a first slide block 511 is fixedly connected to the upper side of one end, far away from the seat plate 52, of the cover plate 51, a second slide block 521 is fixedly connected to the upper side of one end, far away from the cover plate 51, of the seat plate 52, and the first slide block 511 and the second slide block 521 are respectively arranged in the fourth slide groove 43 and the second slide groove 33 in a sliding manner; the second slider 521 stops sliding when sliding down to contact with the bottom surface of the fourth chute 43, and the water inlet 512 and the water outlet 522 just move completely below the back water plate 31 and the water facing plate 41, and then the cover plate 51 and the seat plate 52 move upwards synchronously with the upward movement of the back water plate 31 and the water facing plate 41; in the process that the back water plate 31 and the water facing plate 41 move upwards, the water inlet 512 and the water outlet 522 move downwards step by step but do not move to the lower part of the back water plate 31 and the water facing plate 41 completely, the supporting block 59 contacts with the bottom of the water channel, an inner channel is formed between the cover plate 51, the seat plate 52 and the bottom of the water channel, an outer channel is formed between the back water plate 31, the water facing plate 41 and the bottom of the water channel, and water in the water channel flows to the other side of the gate through the inner channel and the outer channel; after the supporting blocks 59 move upwards along with the back water plate 31 and the head water plate 41 to separate from the bottom of the water channel, water in the water channel flows through the lower part of the whole gate; the water in the water channel flows from the water facing side of the gate to the water backing side of the gate.

Further, a spring 9 is fixedly connected to the top wall of the first chute 32 and the top wall of the third chute 42 together, the bottom end of the spring 9 is fixed to the top end of the cover plate 51 and the top end of the seat plate 52, the spring 9 is always in a compressed state, and along with the upward movement of the back water plate 31 and the water facing plate 41, the spring 9 stretches and resets to push the first slider 511 and the second slider 521 to slide downwards in the fourth chute 43 and the second chute 33 respectively until the second slider 521 contacts with the bottom surface of the second chute 33; in the process that the back water plate 31 and the water facing plate 41 move downwards and the supporting blocks 59 are contacted with the bottom of the water channel, the springs 9 are compressed again along with the gradual downward movement of the back water plate 31 and the water facing plate 41, and when the back water plate 31 and the water facing plate 41 are contacted with the bottom of the water channel, the whole transmission structure 5 is surrounded and shielded by the back water plate 31 and the water facing plate 41.

As a further explanation of the above technical solution, the air extraction structure 6 includes a cylinder 61, the cylinder 61 is fixed on one outer vertical surface of the seat plate 52 and is located between the first chute 32 and the third chute 42, a piston 62 is slidably disposed in the cylinder 61, a piston rod 63 is fixedly connected to the top of the piston 62, the top of the piston rod 63 penetrates through the cylinder 61 and extends above the cylinder 61, a gap exists between the piston rod 63 and the cylinder 61, a transmission plate 64 is fixedly connected to the top of the piston rod 63, the transmission plate 64 and the transmission rod 58 are movably connected together through a shaft, the transmission plate 64 reciprocates up and down along with the up and down reciprocation of the transmission rod 58, and the piston 62 is driven to reciprocate up and down in the cylinder 61 through the piston rod 63; the air outlet of the air exhaust pipe 8 is connected with the outer vertical surface of the cylinder body 61 and is communicated with the inner cavity of the cylinder body 61.

Further, the exhaust pipe 8 is provided with a first check valve 81, the exhaust pipe 8 is movably arranged in the first guide groove 35 and the second guide groove 45, the first check valve 81 is arranged in the first guide groove 32 and the third guide groove 42, the air outlet of the first check valve 81 faces downwards, when the piston 62 moves upwards in the cylinder 61, the volume of a cavity below the piston 62 in the cylinder 61 is increased, the pressure in the cavity is gradually reduced, and air outside the water-facing plate 41 enters the first guide groove 35 and the second guide groove 45 through the air inlet hole 46 and enters the exhaust pipe 8, and enters the cavity below the piston 62 in the cylinder 61 through the first check valve 81, so that the air exhaust effect is realized.

Under the action of the check valve 81, air in the cylinder 61 below the piston 62 does not flow back into the cavity in the suction pipe 8 above the check valve 81.

The air outlet structure 7 comprises a connecting pipe 71 penetrating through the two supporting blocks 59, an air duct 72 is arranged on the upper side of the connecting pipe 71 in a communicating manner, a second one-way valve 721 is arranged on the air duct 72, the air outlet of the second one-way valve 721 is downward, and the air inlet of the air duct 72 is connected to the bottom end of the cylinder body 61 and is communicated with the inner cavity of the cylinder body 61; the connecting pipe 71 is provided with a plurality of air outlet pipes 73 in a communicating manner, the air outlet pipes 73 are movably arranged in the second containing groove 44, the piston 62 moves downwards in the cylinder 61 after the air suction is completed in the cylinder 61, air below the piston 62 is pressed into the connecting pipe 71 and is discharged from the air outlet pipes 73 through the second one-way valve 721, the air outlet pipes 73 are inclined downwards, the air outlet direction of the air outlet pipes 73 is far away from the water back flashboard 3, the air discharged from the air outlet pipes 73 enters into the water at one side of the water facing plate 41, and the mud and impurities deposited at one side of the water facing plate 41 are impacted, so that the mud and the impurities are promoted to be mixed with the water again and flow away along with the water, the influence of the deposited mud and impurities on the water flow in a water channel is reduced, and the water flow is facilitated.

Due to the arrangement of the second check valve 721, water outside the air outlet pipe 73 does not enter the cylinder 61 through the air outlet pipe 73.

When the electric servo lifting type water conservancy gate is used on a water channel, concrete columns for guiding up-and-down movement of the water inlet gate plate 4 and the water back gate plate 3 are respectively arranged on two sides of the water channel, and then concrete beams for fixing the base 1 are arranged on the two concrete columns.

When the water channel is opened, the servo motor 10 drives the water-facing gate plate 4 and the water-backing gate plate 3 to move upwards, the supporting block 59 is propped against the bottom of the water channel under the action of the spring 9, and along with the gradual upward movement of the water-facing gate plate 4 and the water-backing gate plate 3, part of water in the water channel flows through the lower parts of the water-facing gate plate 4 and the water-backing gate plate 3, the other part of water enters the installation cylinder 53 through the water inlet 512 to drive the impeller 54 to rotate, the transmission rod 58 is driven to move up and down, the piston 62 is driven to reciprocate up and down in the cylinder 61, and outside air is pumped into the exhaust pipe 8 through the air inlet 46, the first guide groove 35 and the second guide groove 45 and enters the cylinder 61, and then is discharged through the air outlet pipe 73, so as to impact deposited mud and impurities.

When the gate is opened to enable water in the water channel to flow to the other side of the gate, the kinetic energy of water flow is utilized to drive the impeller 54 to continuously rotate, so that the piston 62 is continuously moved up and down, continuous air suction and exhaust are realized, continuous impact on deposited mud and impurities is realized, automatic cleaning of mud and impurities on the water facing side of the gate is realized, and the influence of the deposited mud and impurities on water flow is effectively avoided.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides an electric servo over-and-under type water conservancy gate, includes frame (1) and crossbeam (2), its characterized in that: the bottom end of the cross beam (2) is fixedly connected with a water back flashboard (3) and a water back flashboard (4), the water back flashboard (4) is arranged on one side of the water back flashboard (3), a transmission structure (5), an air suction structure (6) and an air outlet structure (7) are arranged between the water back flashboard (3) and the water back flashboard (4), the air outlet structure (7) is arranged at the lower part of the transmission structure (5), the air outlet structure (7) is provided with a plurality of downward air outlet ends and an upward air inlet end, the air suction structure (6) is arranged at one side of the transmission structure (5) and is connected with the air inlet end of the air outlet structure (7), the air suction structure (6) is in transmission connection with the transmission structure (5), one end of the air suction structure (6) far away from the transmission structure (5) is connected with an air suction pipe (8), the air suction pipe (8) is slidably arranged on the water back flashboard (3) and the water back flashboard (4), one side of the top end of the machine seat (1) is fixedly connected with a servo motor (10), the top end of the machine seat (1) is provided with a plurality of downward air outlet ends and an upward air inlet end, the air inlet end is arranged at one side of the machine seat (1) is fixedly connected with a bevel gear (11), the bevel gear (11) through which is meshed with the bevel gear (11), the top end of the cross beam (2) is fixedly connected with a lifting stud (13), the lifting stud (13) penetrates through the base (1), and the transmission bevel gear (12) is sleeved on the lifting stud (13) in a threaded mode.

2. An electric servo lifting water gate according to claim 1, characterized in that: the water back flashboard (3) comprises a water back board (31), the water back board (31) is fixed at the bottom end of the cross beam (2), a first sliding groove (32), a first storage groove (34) and a first guide groove (35) are formed in the water back board (31) towards one end of the water back board (4), the first storage groove (34) is communicated with the lower side of the first sliding groove (32) and penetrates through the bottom end of the water back board (31), the first guide groove (35) is communicated with the upper side of the first sliding groove (32), and a second sliding groove (33) is formed in the first sliding groove (32) towards one groove wall surface of the water back board (4).

3. An electric servo lifting water gate according to claim 2, characterized in that: the water-facing flashboard (4) comprises a water-facing board (41), wherein a third sliding groove (42), a second containing groove (44) and a second guiding groove (45) are formed in one end, facing the back water flashboard (3), of the water-facing board (41), the second containing groove (44) is communicated with the lower side of the third sliding groove (42) and penetrates through the bottom end of the water-facing board (41), the second guiding groove (45) is communicated with the upper side of the third sliding groove (42) and is matched with the first guiding groove (35), and a fourth sliding groove (43) is formed in one groove wall surface, facing the back water flashboard (3), of the third sliding groove (42); an air inlet hole (46) is formed in the top of the second guide groove (45), and the air inlet hole (46) penetrates through one end, far away from the back water flashboard (3), of the water-facing plate (41).

4. An electric servolift type water gate according to claim 3, wherein: the utility model provides a transmission structure (5) including slide cover board (51) and the slip that sets up in runner (32) No. three in runner (42) set up seat board (52), cover board (51) are fixed in the one end of seat board (52) through the last water inlet (512) that supply water flowed in that are perforating of cover board (51) water outlet (522) that supply water flowed out the last joint rotation of water inlet (512) and outlet (522) is connected with mounting cylinder (53) the inboard fixedly connected with impeller (54) of mounting cylinder (53) the outside fixed cover of mounting cylinder (53) is equipped with ring gear (55), ring gear (55) rotate and set up the one end towards cover board (51) on seat board (52) one side meshing of ring gear (55) has drive gear (56), drive gear (56) are connected towards the one end rotation of cover board (51) on through axle and seat board (52) drive gear (56) are last to be inlayed and are equipped with connecting axle (57) on connecting axle (57) movable sleeve is equipped with impeller (54), drive rod (58) extend to seat board (52) top.

5. An electric servo lifting water gate according to claim 1, characterized in that: two support blocks (59) are respectively fixed on two sides of the bottom end of the seat plate (52), and the two support blocks (59) are arranged in the first storage groove (34) and the second storage groove (44); a first sliding block (511) is fixedly connected to the upper side of one end, far away from the seat plate (52), of the cover plate (51), a second sliding block (521) is fixedly connected to the upper side of one end, far away from the cover plate (51), of the seat plate (52), and the first sliding block (511) and the second sliding block (521) are respectively arranged in a fourth sliding groove (43) and a second sliding groove (33) in a sliding manner; the water inlet (512) is a horn mouth, and the small end of the water inlet (512) faces the mounting cylinder (53).

6. An electric servolift type water gate according to claim 3, wherein: the top wall of the first chute (32) and the top wall of the third chute (42) are fixedly connected with springs (9) together, and the bottom ends of the springs (9) are fixed with the top ends of the cover plate (51) and the seat plate (52).

7. An electric servo lifting water gate as claimed in claim 6, wherein: the air extraction structure (6) comprises a cylinder body (61), the cylinder body (61) is fixed on one outer vertical surface of the seat plate (52) and is positioned between a first sliding chute (32) and a third sliding chute (42), a piston (62) is arranged in the cylinder body (61) in a sliding manner, the top of the piston (62) is fixedly connected with a plug rod (63), the top of the plug rod (63) penetrates through the cylinder body (61) and extends to the upper side of the cylinder body (61), a transmission plate (64) is fixedly connected to the top of the plug rod (63), and the transmission plate (64) and the transmission rod (58) are movably connected together through a shaft; the air outlet of the air exhaust pipe (8) is connected with the outer vertical surface of the cylinder body (61) and is communicated with the inner cavity of the cylinder body (61).

8. An electric servo lifting water gate as claimed in claim 7, wherein: install check valve (81) on exhaust tube (8), exhaust tube (8) activity sets up in guide slot (35) and No. two guide slots (45), check valve (81) set up in spout (32) and No. three spout (42), the gas outlet of check valve (81) is downward.

9. An electric servo lifting water gate as claimed in claim 8, wherein: the air outlet structure (7) comprises a connecting pipe (71) penetrating through the two supporting blocks (59), an air duct (72) is arranged on the upper side of the connecting pipe (71) in a communicating mode, a second one-way valve (721) is arranged on the air duct (72), an air outlet of the second one-way valve (721) faces downwards, and an air inlet of the air duct (72) is connected to the bottom end of the cylinder body (61) and is communicated with an inner cavity of the cylinder body (61); a plurality of air outlet pipes (73) are communicated with the connecting pipe (71), and the air outlet pipes (73) are obliquely downwards arranged.

10. An electric servo-actuated lifting gate as claimed in claim 9, wherein: the air outlet pipe (73) is movably arranged in the second storage groove (44), and the air outlet direction of the air outlet pipe (73) is far away from the water back flashboard (3).