CN219951855U - Farmland control drainage device - Google Patents

Abstract

The utility model discloses a farmland control drainage device which comprises a fixing frame, a water storage tank and a filter screen, wherein the fixing frame and the water storage tank are arranged in a farmland ridge, the farmland control drainage device further comprises a scraping mechanism, mounting grooves are formed in two vertical inner side walls of the fixing frame, a strip-shaped hole is formed in the top surface of the fixing frame, the two mounting grooves are communicated with the strip-shaped hole, the filter screen is arranged in the strip-shaped hole in a sliding mode, the scraping mechanism comprises two reciprocating screw rods rotatably arranged on the fixing frame and scraping plates which are in contact with the filter screen, the two reciprocating screw rods are respectively positioned on two sides of the filter screen, nut seats are respectively arranged on the two reciprocating screw rods in a matched mode, and the scraping plates are arranged on the nut seats. The utility model has the effects of being convenient for cleaning the garbage blocked at the two sides of the filter screen and improving the drainage efficiency of farmlands.

Description

Farmland control drainage device

Technical Field

The utility model relates to the technical field of farmland drainage, in particular to a farmland control drainage device.

Background

The farmland drainage means that excessive ground water, soil water and underground water in the farmland are removed, and the water, fertilizer, gas and heat relations of the soil are improved, so that the farmland is beneficial to the crop growth by adopting artificial measures for facilitating the crop growth, and the farmland timely effective drainage plays an important role in preventing land degradation, improving saline-alkali soil and the like.

The utility model discloses a farmland water inlet and drainage device, which is disclosed in the Chinese patent with the publication number of CN210827389U in the related art, and comprises a ditch arranged at the side of a farmland, an opening communicated with the ditch is formed on the side wall of the farmland ridge, the farmland water inlet and drainage device also comprises a water level adjusting device for opening and closing the opening, the water level adjusting device comprises a cover plate I and a floating ball, the cover plate I is slidingly connected on the side wall of the farmland ridge and is used for blocking the opening, a sliding rail is arranged on the side wall of the farmland ridge, a sliding groove for the cover plate I to slide up and down is formed on the sliding rail, and the floating ball is fixedly connected on the cover plate I; be equipped with the catch basin in the farmland ridge, when farmland water level is in normal condition, apron one is totally closed the opening, be equipped with filter equipment between two baffles, filter equipment is including the fixed frame of ring setting between two baffles, fixed connection at the filter screen one of fixed frame, and the transversal shape of personally submitting of fixed frame vertical direction.

To above-mentioned correlation technique, when the water level in the farmland is normal, the water in the ditch is stored to the catch basin in, and when the water level was too low in the farmland, the floater descends and drives the apron and descend, and the opening is opened, and the rivers in the catch basin are to the farmland, promote the water level in the farmland, and at the in-process of manufacturing this equipment, the filter screen is generally installed on the mount, advance the in-process of advancing the drainage to the farmland, and rubbish is piled up easily to the filter screen both sides, reduces farmland water inlet and outlet efficiency.

Disclosure of Invention

In order to facilitate cleaning of garbage blocked at two sides of a filter screen and improve the drainage efficiency of farmlands, the utility model provides a farmland control drainage device.

The utility model provides a farmland control drainage device which adopts the following technical scheme:

the utility model provides a farmland control drainage device, includes mount, catch basin and filter screen, the mount with the catch basin all sets up in the farmland ridge, still includes scraping mechanism, the mounting groove has all been seted up on two vertical inside walls of mount, the bar hole has been seted up on the top surface of mount, two the mounting groove with the bar hole is linked together, the filter screen slip set up in the bar is downthehole, scraping mechanism including rotate set up in two reciprocating screw on the mount and with the scraper blade that the filter screen is inconsistent, two reciprocating screw is located respectively the both sides of filter screen, two all cooperate on the reciprocating screw to install the nut seat, the scraper blade install in on the nut seat. .

Through adopting above-mentioned technical scheme, the filter screen slides and sets up in the bar downthehole, and reciprocating screw rotates and sets up on the mount, and the scraper blade is inconsistent with the filter screen, and when reciprocating screw rotated, the nut seat can drive the scraper blade and do reciprocating motion on reciprocating screw to be convenient for clear up the deposit on the filter screen, improve farmland drainage efficiency.

Preferably, the fixing frame is provided with a supporting block and a fixing seat, the supporting block and the fixing seat are respectively located at two sides of the filter screen, a groove is formed in the side face of the fixing seat, the scraping mechanism further comprises a driving motor fixed on the fixing frame, a worm is mounted on an output shaft of the driving motor, a through hole is formed in the side face of the supporting block, the reciprocating screw is rotationally arranged in the through hole, a worm wheel is fixed on the end face, close to the supporting block, of the reciprocating screw, the worm wheel is meshed with the worm, and the reciprocating screw is inserted into the groove.

Through adopting above-mentioned technical scheme, reciprocating screw rotates and sets up in the through-hole, is fixed with the worm wheel on the terminal surface that reciprocating screw is close to the supporting shoe, installs the worm on driving motor's the output shaft, and the worm meshes with the worm wheel mutually, and when needs clearance filter screen, driving motor drive worm drives the worm wheel and rotates, and the worm wheel drives reciprocating screw and rotates, and reciprocating screw drives the scraper blade and do reciprocating motion in the horizontal direction, and the deposit on the filter screen is cleared up to the scraper blade of being convenient for, and the fixing base hinders the screw bottom to the direction swing of keeping away from the filter screen, makes the horizontal rotation that the screw can be more stable.

Preferably, the scraping mechanism further comprises a fixing plate arranged on the fixing frame, a sliding groove is formed in the top surface of the fixing plate, the end portion of the scraping plate is inserted into the sliding groove, and the scraping plate is transversely arranged in the sliding groove in a sliding manner.

Through adopting above-mentioned technical scheme, offered the sliding tray on the top surface of fixed plate, the scraper blade is inserted and is located the sliding tray in, and the scraper blade can slide in the sliding tray, and the fixed plate obstructs the scraper blade swing, improves the laminating nature of scraper blade and filter screen.

Preferably, the side of the filter screen is provided with a clamping groove, the side wall of the fixing frame is provided with a connecting groove, the fixing frame is provided with a clamping mechanism, the clamping mechanism comprises a clamping strip, one end of the clamping strip can be inserted into the clamping groove, and the clamping strip is slidably arranged in the connecting groove.

Through adopting above-mentioned technical scheme, when needs with filter screen and mount looks joint, slide the lateral wall of filter screen along the bar hole downwards, when draw-in groove and spread groove coincide mutually, promote the card strip to the direction that is close to the draw-in groove for the card strip inserts in locating the draw-in groove, has improved the stability of filter screen and mount joint.

Preferably, a limiting groove is formed in the side wall of the connecting groove, a limiting block is arranged on the clamping strip, the limiting block is slidably arranged in the limiting groove, a first spring is arranged in the limiting groove, one end of the first spring is in contact with the side wall, away from the clamping groove, of the limiting groove, and the other end of the first spring is in contact with the side surface, away from the clamping groove, of the limiting block.

Through adopting above-mentioned technical scheme, inject the piece and slide and set up in inject the inslot, inject the piece and hinder the card strip and break away from the mount, improve the stability that card strip and filtration network card connect, spring one give the card strip to the gliding thrust of draw-in groove direction for the card strip is stable to be inserted and locate in the draw-in groove, and the card strip hinders the filter screen to follow bar hole lateral wall and slide.

Preferably, the clamping hole is formed in the clamping strip, a first inclined surface is arranged on the side wall, away from the clamping groove, of the clamping hole, the sliding hole is formed in the side wall of the connecting groove, the unlocking mechanism is arranged on the fixing frame and comprises a pushing strip, one end of the pushing strip can be inserted into the clamping hole, the pushing strip is slidably arranged in the sliding hole, and a second inclined surface which is used for being in contact with the first inclined surface is arranged on the pushing strip.

Through adopting above-mentioned technical scheme, push away the strip and slide and set up in the downthehole that slides, when the filter screen is dismantled from the mount to needs, promote the direction that pushes away the strip to be close to the draw-in bar, through the conflict effect on first inclined plane and second inclined plane, push away the strip and move the draw-in bar to keeping away from the direction slip of draw-in groove, when the side that the draw-in bar is close to the draw-in groove and the filter screen be close to the side coplanarity of draw-in groove, the draw-in bar breaks away from the draw-in groove to make filter screen break away from the mount, be convenient for change the filter screen.

Preferably, a blocking groove is formed in the side wall of the sliding hole, a stop block is arranged on the push bar, the stop block is slidably arranged in the blocking groove, a second spring is arranged in the blocking groove, one end of the second spring is abutted to the side wall of the connecting groove close to the blocking groove, and the other end of the second spring is abutted to the side surface of the connecting groove close to the stop block.

Through adopting above-mentioned technical scheme, the dog slides and sets up in keeping off the inslot, and the dog hinders the push rod and breaks away from the mount, improves the stability of push rod and mount joint, and spring two hinder the push rod and receive other external force's influence and make the card strip produce to keeping away from the gliding thrust of draw-in groove direction, make the stable joint of card strip in the draw-in groove.

Preferably, the inner wall of the fixing frame is provided with a containing groove, a flashboard is arranged in the containing groove, the fixing frame is provided with a lifting mechanism, the lifting mechanism comprises a rotating handle and a rotating shaft vertically penetrating through the fixing frame, the rotating shaft is in threaded connection with the fixing frame, one end of the rotating shaft is fixed on the rotating handle, and the other end of the rotating shaft is rotationally arranged on the flashboard.

Through adopting above-mentioned technical scheme, the one end of pivot is fixed in on the stem, and the other end of pivot rotates to set up on the flashboard, when needs carry the flashboard, rotates the stem, and the stem drives the pivot and rotates, and the pivot carries and draws the flashboard.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the filter screen is arranged in the strip-shaped hole in a sliding way, the reciprocating screw rod is arranged on the fixing frame in a rotating way, the scraping plate is in contact with the filter screen, and when the reciprocating screw rod rotates, the nut seat can drive the scraping plate to do reciprocating motion on the reciprocating screw rod, so that the accumulated objects on the filter screen can be cleaned conveniently, and the farmland drainage efficiency is improved;

2. the reciprocating screw rod is rotationally arranged in the through hole, a worm wheel is fixed on the end face, close to the supporting block, of the reciprocating screw rod, a worm is mounted on an output shaft of the driving motor and meshed with the worm wheel, when the filter screen needs to be cleaned, the driving motor drives the worm wheel to rotate, the worm wheel drives the reciprocating screw rod to rotate, the reciprocating screw rod drives the scraping plate to do reciprocating motion in the horizontal direction, the scraping plate is convenient for cleaning deposits on the filter screen, the fixing seat prevents the bottom end of the screw rod from swinging in the direction away from the filter screen, and the screw rod can rotate horizontally more stably;

3. a sliding groove is formed in the top surface of the fixing plate, the scraping plate is inserted into the sliding groove and can slide in the sliding groove, the fixing plate blocks the scraping plate from swinging, and the fit between the scraping plate and the filter screen is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of a drainage device according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of the overall structure of the fixing frame in the embodiment of the utility model.

Fig. 3 is a cross-sectional view of a mount in an embodiment of the utility model.

Fig. 4 is a cross-sectional view of a mount and filter screen in an embodiment of the utility model.

Fig. 5 is a partial enlarged view at a in fig. 4.

Reference numerals illustrate:

1. a fixing frame; 11. a receiving groove; 12. a flashboard; 13. a mounting groove; 14. a bar-shaped hole; 15. a support block; 151. a through hole; 16. a fixing seat; 161. a groove; 17. a connecting groove; 171. defining a slot; 172. a first spring; 173. a slip hole; 1731. a blocking groove; 174. a second spring; 2. a water storage tank; 3. a filter screen; 31. a clamping groove; 4. a scraping mechanism; 41. a driving motor; 42. a worm; 43. a reciprocating screw rod; 431. a nut seat; 432. a worm wheel; 44. a fixing plate; 441. a sliding groove; 45. a scraper; 5. a clamping mechanism; 51. clamping strips; 511. defining a block; 512. a clamping hole; 5121. a first inclined surface; 6. an unlocking mechanism; 61. pushing the strip; 611. a second inclined surface; 612. a stop block; 7. a lifting mechanism; 71. a rotating handle; 72. a rotating shaft.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-5.

The embodiment of the utility model discloses a farmland control drainage device. Referring to fig. 1 and 2, the drainage device includes a fixing frame 1, a water storage tank 2, a filter screen 3, a scraping mechanism 4, a clamping mechanism 5, an unlocking mechanism 6 and a lifting mechanism 7, in this embodiment, the water storage tank 2 is formed by pouring concrete, soil is piled up on two sides of the water storage tank 2 to form a ridge, a notch is arranged on the inner side wall of the water storage tank 2, and the fixing frame 1 is fixed in the notch.

Referring to fig. 3, two vertical inner sidewalls of the fixing frame 1 are respectively provided with a receiving groove 11, the two receiving grooves 11 are symmetrical with respect to a central axis of the fixing frame 1, a gate plate 12 is arranged in the fixing frame 1, and the gate plate 12 is vertically slidably arranged in the receiving grooves 11.

Referring to fig. 2 and 3, the lifting mechanism 7 includes a rotating handle 71 and a rotating shaft 72, the rotating shaft 72 vertically passes through the fixing frame 1, the rotating shaft 72 is in threaded connection with the fixing frame 1, one end of the rotating shaft 72 is welded and fixed with the rotating handle 71, the other end of the rotating shaft 72 is rotationally connected with the gate plate 12, when the gate plate 12 needs to be lifted, the rotating handle 71 is rotated, the rotating handle 71 drives the rotating shaft 72 to rotate, and the rotating shaft 72 lifts the gate plate 12.

Referring to fig. 4, two filter screens 3 are disposed on the inner side of the fixing frame 1, two filter screens 3 are disposed on two sides of the gate plate 12, the filter screens 3 are disposed in parallel with the gate plate 12, mounting grooves 13 are formed in the vertical inner side wall of the fixing frame 1, two sides of the filter screens 3 are slidably disposed in the mounting grooves 13, two strip-shaped holes 14 are formed in the top surface of the fixing frame 1, the strip-shaped holes 14 are in one-to-one correspondence with the filter screens 3, and two ends of each strip-shaped hole 14 are communicated with the corresponding mounting grooves 13 on two sides of the filter screen 3.

Referring to fig. 2, the scraping mechanisms 4 have two groups, the two groups of scraping mechanisms 4 are all disposed on the fixing frame 1, the two groups of scraping mechanisms 4 are respectively located at two sides of the flashboard 12, the scraping mechanisms 4 include a driving motor 41, a worm 42, a reciprocating screw 43, a fixing plate 44 and a scraping plate 45, the driving motor 41 is a double-headed motor, the driving motor 41 is fixed on the side surface of the fixing frame 1 far away from the fixing seat 16, the two worms 42 are two, and the two worms 42 are respectively fixed on two output shafts of the driving motor 41.

Referring to fig. 2, two reciprocating screw rods 43 are provided, the two reciprocating screw rods 43 are horizontally arranged on the fixing frame 1, the two reciprocating screw rods 43 are respectively positioned at two sides of the filter screen 3 far away from each other, and nut seats 431 are respectively matched and installed on the two reciprocating screw rods 43.

Referring to fig. 2 and 3, the fixing frame 1 is provided with the reciprocating screw 43, the supporting blocks 15 are fixed on both sides of the fixing frame 1, the fixing seats 16 are fixed on both sides of the supporting blocks 15, the fixing seats 16 and the supporting blocks 15 are respectively positioned on both sides of the filter screen 3, the side surfaces of the supporting blocks 15 are provided with through holes 151, the side surfaces of the fixing seats 16 are provided with grooves 161, and the through holes 151 are coincident with the central axes of the grooves 161.

Referring to fig. 2, the reciprocating screw 43 is rotatably disposed in the through hole 151, a worm wheel 432 is fixed to an end surface of the reciprocating screw 43 adjacent to the support block 15, the worm wheel 432 is engaged with the worm 42, and the reciprocating screw 43 is inserted into the groove 161.

Referring to fig. 2, two fixing plates 44 are provided, the two fixing plates 44 are horizontally fixed on the fixing frame 1, the two fixing plates 44 are respectively located at two sides of the filter screen 3, which are far away from each other, sliding grooves 441 are formed in the top surface of the fixing plate 44, the scraping plates 45 are vertically arranged on the fixing frame 1, one ends of the scraping plates 45 are welded and fixed with the nut seat 431, the end parts of the other ends of the scraping plates 45 are inserted into the sliding grooves 441, the scraping plates 45 are transversely arranged in the sliding grooves 441 in a sliding mode, and the scraping plates 45 are in contact with the filter screen 3.

Referring to fig. 4 and 5, a clamping groove 31 is formed in a side surface of the filter screen 3, a connecting groove 17 is formed in a side wall of the fixing frame 1, a clamping mechanism 5 is arranged on the fixing frame 1, the clamping mechanism 5 comprises a clamping strip 51 with one end capable of being inserted into the clamping groove 31, the clamping strip 51 is slidably arranged in the connecting groove 17, a limiting groove 171 is formed in the side wall of the connecting groove 17, a limiting block 511 is arranged on the clamping strip 51, the limiting block 511 is slidably arranged in the limiting groove 171, the limiting block 511 prevents the clamping strip 51 from being separated from the fixing frame 1, and the clamping stability of the clamping strip 51 and the fixing frame 1 is enhanced.

Referring to fig. 4 and 5, a first spring 172 is disposed in the limiting groove 171, one end of the first spring 172 abuts against a side wall of the limiting groove 171 away from the clamping groove 31, the other end of the first spring 172 abuts against a side surface of the limiting block 511 away from the clamping groove 31, and the first spring 172 provides a pushing force for the clamping strip 51 to slide towards the clamping groove 31, so that the clamping strip 51 is stably inserted into the clamping groove 31.

Referring to fig. 4 and 5, a sliding hole 173 is formed in a side wall of the connection groove 17, a clamping hole 512 is formed in a side surface of the clamping bar 51, which is close to the sliding hole 173, a first inclined surface 5121 is formed in a side wall of the clamping hole 512, which is far away from the clamping groove 31, an unlocking mechanism 6 is arranged on the fixing frame 1, the unlocking mechanism 6 comprises a pushing bar 61, the pushing bar 61 is slidably arranged in the sliding hole 173, a second inclined surface 611 which is used for abutting against the first inclined surface 5121 is arranged on the pushing bar 61, the pushing bar 61 is pushed to be close to the clamping bar 51, the pushing bar 61 drives the clamping bar 51 to slide in a direction away from the clamping groove 31 through the abutting action of the first inclined surface 5121 and the second inclined surface 611, and when the side surface of the clamping bar 51, which is close to the clamping groove 31, and the side surface of the filter screen 3, which is close to the clamping groove 31, are coplanar, are separated from the clamping groove 31, so that the filter screen 3 is separated from the fixing frame 1, and the filter screen 3 is convenient to replace.

Referring to fig. 5, a blocking slot 1731 is formed on a side wall of the sliding hole 173, a stop block 612 is provided on the push bar 61, the stop block 612 is slidably disposed in the blocking slot 1731, a second spring 174 is provided in the blocking slot 1731, one end of the second spring 174 abuts against a side wall of the blocking slot 1731, which is close to the connecting slot 17, the other end of the second spring 174 abuts against a side surface of the stop block 612, which is close to the connecting slot 17, and the second spring 174 blocks the push bar 61 from being influenced by other external forces, so that the clamping bar 51 generates a pushing force sliding in a direction away from the clamping slot 31, and the clamping bar 51 is stably clamped in the clamping slot 31.

The implementation principle of the farmland control drainage device provided by the embodiment of the utility model is as follows:

when the filter screen 3 is required to be clamped with the fixing frame 1, the filter screen 3 slides downwards along the side wall of the strip-shaped hole 14, and when the clamping groove 31 is matched with the connecting groove 17, the clamping strip 51 is pushed to a direction close to the clamping groove 31, so that the clamping strip 51 is inserted into the clamping groove 31.

When the filter screen 3 is required to be detached from the fixing frame 1, the push bar 61 is pushed to the direction close to the clamping bar 51, the push bar 61 drives the clamping bar 51 to slide to the direction far away from the clamping groove 31 under the interference action of the first inclined plane 5121 and the second inclined plane 611, and when the side surface of the clamping bar 51 close to the clamping groove 31 is coplanar with the side surface of the filter screen 3 close to the clamping groove 31, the clamping bar 51 is separated from the clamping groove 31, so that the filter screen 3 is separated from the fixing frame 1, and the filter screen 3 is convenient to replace.

When the filter screen 3 needs to be cleaned, the driving motor 41 drives the worm 42 to drive the worm wheel 432 to rotate, the worm wheel 432 drives the reciprocating screw 43 to rotate, and the reciprocating screw 43 drives the scraping plate 45 to do reciprocating motion in the horizontal direction, so that the scraping plate 45 is convenient for cleaning the accumulated matters on the filter screen 3.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. The utility model provides a farmland control drainage device, includes mount (1), catch basin (2) and filter screen (3), mount (1) with catch basin (2) all set up in the farmland ridge, its characterized in that: still including striking off mechanism (4), mounting groove (13) have all been seted up on two vertical inside walls of mount (1), bar hole (14) have been seted up on the top surface of mount (1), two mounting groove (13) with bar hole (14) are linked together, filter screen (3) slide set up in bar hole (14), strike off mechanism (4) including rotate set up in two reciprocating screw (43) on mount (1) and with scraper blade (45) that filter screen (3) are inconsistent, two reciprocating screw (43) are located respectively the both sides of filter screen (3), two all cooperate on reciprocating screw (43) to install nut seat (431), scraper blade (45) install in on nut seat (431).

2. A farmland control drainage device according to claim 1, wherein: be provided with supporting shoe (15) and fixing base (16) on mount (1), supporting shoe (15) with fixing base (16) are located respectively the both sides of filter screen (3), set up fluted (161) on the side of fixing base (16), strike-off mechanism (4) still including being fixed in driving motor (41) on mount (1), install worm (42) on the output shaft of driving motor (41), through-hole (151) have been seted up on the side of supporting shoe (15), reciprocating screw (43) rotate set up in through-hole (151), be fixed with worm wheel (432) on the terminal surface that reciprocating screw (43) are close to supporting shoe (15), worm wheel (432) with worm (42) mesh mutually, reciprocating screw (43) are inserted and are located in recess (161).

3. A farmland control drainage device according to claim 2, characterized in that: the scraping mechanism (4) further comprises a fixing plate (44) arranged on the fixing frame (1), a sliding groove (441) is formed in the top surface of the fixing plate (44), the end portion of the scraping plate (45) is inserted into the sliding groove (441), and the scraping plate (45) is transversely arranged in the sliding groove (441) in a sliding mode.

4. A farmland control drainage device according to claim 1, wherein: the side of filter screen (3) has seted up draw-in groove (31), connecting groove (17) have been seted up on the lateral wall of mount (1), be provided with joint mechanism (5) on mount (1), joint mechanism (5) include one end can insert locate draw-in strip (51) in draw-in groove (31), draw-in strip (51) slide set up in connecting groove (17).

5. The farmland control drainage apparatus according to claim 4, wherein: limiting grooves (171) are formed in the side walls of the connecting grooves (17), limiting blocks (511) are arranged on the clamping strips (51), the limiting blocks (511) are arranged in the limiting grooves (171) in a sliding mode, first springs (172) are arranged in the limiting grooves (171), one ends of the first springs (172) are in contact with the side walls, away from the clamping grooves (31), of the limiting grooves (171), and the other ends of the first springs (172) are in contact with the side faces, away from the clamping grooves (31), of the limiting blocks (511).

6. The farmland control drainage apparatus according to claim 5, wherein: the clamping device is characterized in that a clamping hole (512) is formed in the clamping strip (51), a first inclined surface (5121) is arranged on the side wall, far away from the clamping groove (31), of the clamping hole (512), a sliding hole (173) is formed in the side wall of the connecting groove (17), an unlocking mechanism (6) is arranged on the fixing frame (1), the unlocking mechanism (6) comprises a pushing strip (61) with one end capable of being inserted into the clamping hole (512), the pushing strip (61) is slidably arranged in the sliding hole (173), and a second inclined surface (611) which is used for being in contact with the first inclined surface (5121) is arranged on the pushing strip (61).

7. The farmland control drainage apparatus according to claim 6, wherein: the side wall of the sliding hole (173) is provided with a blocking groove (1731), the pushing bar (61) is provided with a stop block (612), the stop block (612) is slidably arranged in the blocking groove (1731), the blocking groove (1731) is internally provided with a second spring (174), one end of the second spring (174) is in contact with the side wall, close to the connecting groove (17), of the blocking groove (1731), and the other end of the second spring (174) is in contact with the side surface, close to the connecting groove (17), of the stop block (612).

8. A farmland control drainage device according to claim 1, wherein: the utility model discloses a fixing frame, including fixing frame (1) and slide plate (12), set up holding tank (11) on the inner wall of fixing frame (1), be provided with flashboard (12) in holding tank (11), install on fixing frame (1) and carry and draw mechanism (7), carry and draw mechanism (7) including turning handle (71) and vertical pass pivot (72) of fixing frame (1), pivot (72) with fixing frame (1) threaded connection, one end of pivot (72) is fixed in on turning handle (71), the other end of pivot (72) rotate set up in on flashboard (12).