JP7356771B1 - Adjustable drainage safety gate for farmland drainage ditches - Google Patents

Abstract

The present invention is suitable for agricultural drainage and provides an adjustable drainage safety gate for agricultural drainage culverts. The present invention includes a gate pier, a gate beam, a bottom weir, and a gate body, the gate body includes a gate cylinder, a door body, a floating plate, and a linkage component, and a mounting groove is cut in an outer wall of the gate pier; An auxiliary pier is installed in the mounting groove, an adjustment mechanism is installed in the gate pier for driving the auxiliary pier to move, and a stabilizing component is installed in the gate pier, the stabilizing component comprising: It includes a piston cavity, a third piston, a second connecting rod, a first spring, a single speed flywheel, a driving rod and a driving pin. [Selection diagram] Figure 1

Description

The present invention relates to agricultural drainage, and more particularly to adjustable drainage safety gates for agricultural drainage culverts.

A farmland drainage ditch refers to a naturally formed or artificially excavated waterway to assist farmland drainage.A farmland drainage ditch has the following functions: 1. Inundation reduction and drainage function; 2. Water storage function; 3. It has three main functions: reduce the loss of nutrients in agricultural land and reduce pollution. In order to fully utilize each function of a farmland drainage ditch, it is usually necessary to install a water weir or gate in the ditch.

Patent Document 1 discloses an adjustable self-draining safety gate suitable for farmland drainage ditches, which is composed of a gate body, a gate, a gate opening device and a gate reset device. The gate body includes a gate pier and a cross beam, and a permeable pipe is attached to the gate pier. The gate includes a bottom weir, a movable gate, a hinge, a crossbar, a post and an adjustable hinge, the bottom weir and the movable gate are connected by a hinge, and the post is connected to the movable gate via the adjustable hinge. Ru. The gate opening device includes a water storage tank, a balance weight, a swing link and a support, and the swing link is fixed to the gate pier via a rotating shaft. The gate reset device includes a drum, a drum bracket, a speed reducer, a handwheel and a cable, the speed reducer and the drum bracket are connected through an output shaft, and the drum and the movable gate are connected through a cable.

In the above patent, in the event of a flood, by directly opening the gate, the gate will tip over to the outside of the gate under the action of its own gravity and the thrust of the water flow, resulting in rapid drainage; , easy to damage the ditch and gate, on the other hand, the gate is immediately opened to the maximum, the water flow is instantaneously large, the impact force on the ditch is large, and after draining, the gate is , it needs to be reset manually, and the operation is relatively cumbersome.

The present invention provides an adjustable drainage safety gate for agricultural drainage culverts aimed at solving the above problems.

The present invention comprises two gate piers installed symmetrically and having a gate beam and a bottom weir fixedly connected between the top and bottom, respectively, and a gate body installed between the gate beam and the bottom weir. and,
The gate body includes a gate cylinder whose top and bottom abut against a gate beam and a bottom weir, respectively, and openings are installed in cylinder walls on both sides;
two door bodies having a drain port between them, having an arcuate shape, being slidably connected to the cylinder wall of the gate cylinder, installed within the gate cylinder, and facing each other vertically;
a floating plate rotatably connected to the gate beam at one end and having an airbag attached to the other end and attached to the gate beam;
When the floating plate rotates upward, it drives the two door bodies apart, and when the floating plate rotates downward, it drives the two door bodies closer together, and the floating plate and the two door bodies move toward each other. This is achieved by an adjustable drainage safety gate for agricultural land culverts, including a linkage component connected between the door body and the door body.

Preferably, the gate cylinder is rotatably mounted between two gate piers, and a power motor is mounted on the gate piers to drive the gate cylinder to rotate.

Preferably, an air nozzle is installed in the airbag.

Preferably, the linkage component comprises:
a sector gear whose circular center overlaps the center of rotation of the floating plate and is fixed to one end of the floating plate away from the airbag;
A first piston is installed to be able to slide up and down, a first connecting rod is fixed to the first piston, a rack that meshes with a sector gear is installed to the first connecting rod, and a first cylinder is fixed to the gate beam. The main body and
fixed within the gate cylinder, one end of which is closer to the door body communicates with the bottom end of the first cylinder body via an air pipe, a fourth piston is installed inside, and one end of the fourth piston closer to the door body; a second cylinder body having a full screw rotatably attached thereto, the full screw being centrally located between the two door bodies;
fixed to the gate cylinder end wall, the axis of which overlaps the center line of the gate cylinder, two third connecting rods are rotatably attached to the connecting shaft, and the two third connecting rods are connected to each of the two door bodies. a connecting shaft hinged to the
a second internally threaded sleeve threadedly connected to the full thread, two second links being hingedly connected, each of the two second links being hingedly connected to two third connecting rods;
A third spring is fixed to the other side of the fourth piston, one end of which is separated from the fourth piston passes through the second cylinder body and extends to the outside thereof, a third spring is connected between the support column and the second cylinder body, and a third spring is fixed to the other side of the fourth piston. 3. The force acting on the strut from the spring is directed toward one side of the door body.

Preferably, a mounting groove is opened in the outer wall of the gate pier, and an auxiliary pier is installed in the mounting groove, and the auxiliary pier is horizontally slidingly connected to the gate pier, and an auxiliary pier is installed in the outer wall of the gate pier. An adjustment mechanism is installed to drive the pier to move.

Preferably, the adjustment mechanism includes:
a two-way screw rod mounted vertically in rotation within the gate pier;
two first internally threaded sleeves threadedly connected to the two threaded portions of the bidirectional screw rod;
a first link connected between the first internally threaded sleeve and the auxiliary pier, the ends of which are hingedly connected to the first internally threaded sleeve and the auxiliary pier, respectively;

Preferably, a stabilizing component is attached to the gate pier, the stabilizing component comprising:
a piston cavity opened in a side wall of the gate pier close to the water flow direction, the length direction of which is parallel to the water flow direction, and in which a third piston is installed;
a second connecting rod fixed to the third piston, wherein a first spring is fitted to the second connecting rod in the piston cavity, and both ends of the first spring are one end of the third piston and one end of the piston cavity, respectively; a second connecting rod abutting the third piston, the force acting from the first spring on the third piston being opposite to the water flow direction;
a single speed flywheel mounted on a bidirectional screw rod with an arcuate track fixed to the outer wall;
a drive rod rotatably connected to the bidirectional screw rod and on one side of the single speed flywheel, with a mandrel fixed to one end of said second connecting rod proximal to the drive rod, through which the mandrel slides; a drive rod having a movable groove cut therein;
A driving pin is fixed to the driving rod, the driving pin is inserted into an arcuate track, a second spring is installed in the arcuate track, and both ends of the second spring are connected to one end of the drive pin and the arcuate track, respectively. connected, and the acting force from the second spring on the drive pin is counterclockwise.

Preferably, a plurality of connection anchors are fixed to the outer wall of the auxiliary pier at intervals, and the connection anchors are inserted into the slope of the ditch.

Preferably, a second piston is installed in the connection anchor, and a plurality of arc-shaped telescoping pieces are connected between the second piston and one end of the connection anchor away from the auxiliary pier, and the outer side of the expansion and contraction pieces is preferably A plurality of protrusions are installed on the wall, a through groove is opened in the side wall on the connecting anchor for the arc-shaped telescopic piece to move, and a second piston is installed in the piston cavity via the first communication pipe. connected to one end of the connected anchor.

Preferably, the gate pier is fixedly connected to the slope of the ditch and the bottom weir is fixedly connected to the ditch floor of the ditch.

Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects.

The adjustable drainage safety gate for farmland drainage ditches provided by the present invention comprises a gate pier, a gate beam, a bottom weir and a gate body, and the gate body includes a gate cylinder, a door body, a floating plate, Contains linkage components, when a flood disaster occurs, the water level in the farmland and ditch will rise rapidly, the buoyant force from the water to the floating plate and airbag will push the floating plate and gradually rotate upward, and the floating plate will be connected to the linkage Drive the two door bodies apart through the components, make the drainage port larger, and quickly drain the water inside the gate, to avoid losses caused by the water level in the farmland being too high and the flooding time being too long. After the drainage is finished, the water level in the ditch will drop, and the floating plate will rotate downward under gravity, driving the two door bodies closer to each other through the linkage component, and the initial Restore the condition and maintain stable water level in the ditch.

The adjustable drainage safety gate for farmland drainage provided by the present invention is characterized by installing stabilizing components, the stabilizing components comprising a piston cavity, a third piston, a second connecting rod, a first spring, Contains a single-speed flywheel, driving rod and driving pin, when a flood disaster occurs, the slope of the auxiliary pier and ditch can be further brought into contact, ensuring the stability of the gate.

FIG. 2 is a structural schematic diagram of an adjustable drainage safety gate for farmland drainage ditches provided by the present invention; FIG. 2 is an enlarged view of A in FIG. 1; FIG. 3 is a structural schematic diagram of the gate body in the adjustable drainage safety gate for farmland drainage ditches provided by the present invention; FIG. 3 is a structural schematic diagram of the stabilizing component in the adjustable drainage safety gate for agricultural drainage ditches provided by the present invention; 5 is an enlarged view of B in FIG. 4. FIG. FIG. 2 is a structural schematic diagram of a single-speed flywheel in the adjustable drainage safety gate for farmland drainage ditches provided by the present invention; FIG. 3 is a structural schematic diagram of a connecting anchor in the adjustable drainage safety gate for agricultural land drainage ditches provided by the present invention;

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein in the filed specification is for the purpose of describing specific embodiments only and is not intended to limit the application. The terms "comprising" and "having" and variations thereof in the specification and claims of this application and the above-mentioned brief description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc. in the specification and claims of this application or the above drawings are used to distinguish between various objects, rather than to describe a particular order.

As used herein, the term "embodiment" includes at least one embodiment of the present application with reference to a particular feature, structure, or characteristic described in the embodiment. The appearances of such collocations in the specification are not necessarily referring to the same embodiment, nor are they mutually exclusive, independent or alternative embodiments. It is clearly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

An embodiment of the invention comprises a farmland comprising two symmetrically installed gate piers 9 and a gate body 16 installed between the gate beam 1 and the bottom weir 17, as shown in FIGS. 1 to 7. We offer adjustable drainage safety gates for drain culverts,
A gate beam 1 and a bottom weir 17 are fixedly connected between the top and bottom of the gate pier 9, respectively, and a welding method can be adopted. The bottom weir 17 is fixedly connected to the floor of the ditch 11, and a concrete injection fixing method can be adopted;
The gate body 16 includes a gate cylinder 28, two door bodies 29, a floating plate 3, and a linkage component,
A gate cylinder 28, the top and bottom of the gate cylinder 28 are in contact with the gate beam 1 and the bottom weir 17, respectively, and openings are installed in both cylinder walls on both sides of the gate cylinder 28,
The gate cylinder 28 can be rotatably installed between two gate piers 9, and can be rotatably installed via a rotating shaft, a bearing and a bearing pedestal, and the gate cylinder 28 can be rotated to adjust the opening position. By adjusting, a power motor for driving the gate cylinder 28 to rotate can be attached to the gate pier 9, and of course, the gate cylinder 28 can also be manually driven to rotate,
Two door bodies 29 are installed in the gate cylinder 28 and face each other vertically, and there is a drainage port between the two door bodies 29, and the door body 29 has an arc shape. The slide rail is slidably connected to the cylinder wall of the gate cylinder 28, and the slide rail can be fixed with screws on the outer wall of the door body 29, and the slide groove is slidably connected to the slide rail on the cylinder wall of the gate cylinder 28. opened,
A floating plate 3 is attached to the gate beam 1. One end of the floating plate 3 is rotatably connected to the gate beam 1, and an air bag 2 is attached to the other end of the floating plate 3. An air nozzle 37 can be installed in the bag 2, and an air pump can be connected to the air nozzle 37 to inject air into the air bag 2, and the air nozzle 37 can also be opened to release the air in the air bag 2. can be adjusted,
a linkage component connected between the floating plate 3 and the two door bodies 29, the linkage component driving the two door bodies 29 apart when the floating plate 3 rotates upward; However, when the floating plate 3 rotated downward, the two door bodies 29 were driven toward each other via the linkage component.

Under normal circumstances, the water level in the ditch 11 is low, the water flows downstream from the outlet, and the water level in the ditch 11 is stable, when a flood disaster occurs, the water level in the farmland and ditch 11 will rise rapidly, and the water will float away from the water. The buoyant force on the plate 3 and the airbag 2 pushes the floating plate 3 to gradually rotate upwards, which drives the two door bodies 29 apart via the linkage components, opening the drain opening. Increase the size to quickly drain the water in the gate, effectively prevent the loss caused by the water level in the farmland being too high and the flooding time being too long, and after the drainage is finished, the water level in the ditch 11 will decrease, It is understood that the floating plate 3 rotates downward under gravity and drives the two door bodies 29 closer together through the linkage component, restoring the initial state and maintaining a stable water level in the culvert 11. can.

Here, the linkage components include a sector gear 4, a first cylinder body 5, a second cylinder body 34, a connecting shaft, a second internally threaded sleeve 32, and a strut,
A sector gear 4 is fixed to one end of the floating plate 3 away from the airbag 2, which can be fixed by welding, and the center of the sector gear 4 overlaps the center of rotation of the floating plate 3,
A first cylinder body 5 is fixed to the gate beam 1 and can be fixed with a bolt. A piston 6 is installed in the first cylinder body 5 so as to be vertically slidable. A first connecting rod 7 is fixed to the first connecting rod 7, which can be fixed by welding, and a rack that meshes with the sector gear 4 is installed on the first connecting rod 7,
A second cylinder main body 34 is fixed within the gate cylinder 28, and the second cylinder main body 34 and the side wall of the gate cylinder 28 can be fixed by welding, and the bottom end of the first cylinder main body 5 is connected to an air pipe. A fourth piston 36 is installed in the second cylinder body 34 and is connected to one end of the second cylinder body 34 close to the door body 29 through a screw thread. 31 is rotatably installed and can be rotatably installed through a bearing and a bearing pedestal, the full screw 31 is located in the center of the two door bodies 29,
A connecting shaft fixed to the side wall of the gate cylinder 28, which can be fixed by welding, the axis of the connecting shaft overlaps the center line of the gate cylinder 28, and two third connecting rods are attached to the connecting shaft. 30 are rotatably attached, and the two third connecting rods 30 are each hingedly connected to the two door bodies 29,
A second female threaded sleeve 32 is threadedly connected to the full thread 31, two second links 33 are hingedly connected to the second female threaded sleeve 32, and each of the two second links 33 has two third connections. hingedly connected to the rod 30;
A strut is fixed to the other side of the fourth piston 36, and one end of the strut apart from the fourth piston 36 extends through the second cylinder body 34 and to the outside thereof, and connects the strut and the second cylinder body. A third spring 35 is connected between the third spring 34 and the second cylinder body 34, and the third spring 35 can be fitted to the column, and both ends are engaged with the column and the second cylinder body 34, respectively, and the acting force from the third spring 35 to the column is: The third spring 35 facing one side of the door body 29 may be a tension spring, and has excellent designed performance such as tension, strength, and rigidity.

It needs to be explained that under normal circumstances, the third spring 35 can impart an acting force A to one side of the door body 29 on the fourth piston 36 at the strut, and the door body 29 is connected to the third connecting rod. 30, the second link 33, the second internally threaded sleeve 32 and the full thread 31 apply an acting force B to the fourth piston 36 to separate from one side of the door body 29, and the acting force C and acting force A of the water flow received by each part is greater than the sum of the acting forces B and C, and supports the two door bodies 29 through the two third connecting rods 30, so that the drain opening is in the open state and rotates the full screw 31. Thus, the full thread 31 drives the second internally threaded sleeve 32 to move, the second internally threaded sleeve 32 drives the third connecting rod 30 via the second link 33, and the second internally threaded sleeve 32 drives the third connecting rod 30 via the second link 33, The connecting rod 30 can drive the door body 29 to move and manually adjust the size of the drain hole to meet different drainage needs.

Furthermore, when a flood disaster occurs, the water level in the farmland and ditch 11 rises rapidly, and the buoyant force from the water on the floating plate 3 and the airbag 2 pushes the floating plate 3 and gradually rotates it upward, causing the floating plate 3 to rotate upward. The weight and the length of the moment arm can be designed according to your needs, the longer the moment arm is, the more labor is saved.The floating plate 3 drives the sector gear 4 to rotate, and the sector gear 4 drives the rack. The first connecting rod 7 is driven to move the first piston 6 downward through the air pipe, and the first piston 6 is connected to the first cylinder body by an air pipe. 5 into the second cylinder body 34 and then propel the fourth piston 36 to one side away from the door body 29, the fourth piston 36 is connected to the fully threaded 31 and the second internally threaded sleeve. 32 to one side away from the door body 29, and the second female threaded sleeve 32 is driven to move the two door bodies 29 farther apart from each other via the second link 33 and the third connecting rod 30. However, the drainage port becomes larger and the water inside the gate is quickly discharged and drained, and the water level in the ditch 11 gradually decreases, and the floating plate 3 gradually rotates downward, so that the floating plate 3 becomes fan-shaped. The gear 4 is driven to reverse, and the sector gear 4 is driven to move the first piston 6 upwardly via the first connecting rod 7, so that the medium in the second cylinder body 34 is transferred to the first cylinder. Returning to the main body 5, under the action of the third spring 35, the column drives the fourth piston 36, the full thread 31 and the second female threaded sleeve 32 to one side of the door body 29, and the second female threaded sleeve 32 is driven to reset the two door bodies 29 via the second link 33 and the third connecting rod 30, and the drain port returns to its normal state.

Furthermore, by rotating the gate cylinder 28, it is possible to change the height of the drain, that is, to adjust the lowest position of the drain, which, under normal circumstances, increases the height of the water level in the ditch 11. can be adjusted to meet different agricultural planting needs.

In this embodiment, a mounting groove is opened in the outer wall of the gate pier 9, an auxiliary pier 10 is installed in the mounting groove, and the auxiliary pier 10 is connected to the gate pier 9 by sliding horizontally, The sliding block and the sliding groove can be connected in a sliding manner, and an adjustment mechanism is installed in the gate pier 9 to drive the auxiliary pier 10 to adapt the gate to the ditch 11 of different width sizes. can be done.

Here, the adjustment mechanism is
It is vertically installed in the gate pier 9 and rotated through a bearing and a bearing stand, and the tip of the two-way screw rod 8 extends above the gate beam 1, and a handwheel is fixed by welding. a bidirectional screw rod 8 which can be driven to rotate the bidirectional screw rod 8 through a handle wheel;
two first female threaded sleeves 14 threadedly connected to the two threaded portions of the bidirectional screw rod 8;
a first link 13 connected between the first female threaded sleeve 14 and the auxiliary pier 10, both ends of which are hinged to the first female threaded sleeve 14 and the auxiliary pier 10, respectively;
By rotating the bidirectional screw rod 8, the bidirectional screw rod 8 drives the first internally threaded sleeve 14 to move, the first internally threaded sleeve 14 drives the first link 13 to move, The first link 13 drives the auxiliary pier 10 to move, until the auxiliary pier 10 abuts the slope of the culvert 11, the gate can be installed in the culvert 11 of different width sizes, making it flexible and practical. Improve your sexuality.

In this embodiment, a plurality of connection anchors 12 are fixed to the outer wall of the auxiliary pier 10 at intervals, and the connection anchors 12 are inserted into the slope of the ditch 11.

In a specific implementation, a stabilizing component is attached to the gate pier 9 and is used to improve the stability of the gate, the stabilizing component comprising:
A piston cavity whose length direction is parallel to the water flow direction and which is opened in the side wall of the gate pier 9 close to the water flow direction and in which the third piston 26 is installed;
A second connecting rod 21 is fixed to the third piston 26, and a first spring 20 is fitted to the second connecting rod 21 in the piston cavity, and both ends of the first spring 20 are connected to the third piston 26. 26 and a second connecting rod 21 abutting one end of the piston cavity, the force acting from the first spring 20 on the third piston 26 is opposite to the water flow direction;
a single speed flywheel 15 having an arcuate track 24 fixed to the outer wall and attached to a bidirectional screw rod 8;
A drive rod 22 rotatably connected to the bidirectional screw rod 8 and on one side of the single-speed flywheel 15, with an axle fixed to one end of said second connecting rod 21 near the drive rod 22, said drive A movable groove is formed in the rod 22 for the mandrel to pass through and slide,
A driving pin 23 is fixed to the driving rod 22, the driving pin 23 is inserted into an arcuate track 24, a second spring 25 is installed in the arcuate track 24, and both ends of the second spring 25 are driven. It is connected to the pin 23 and one end of the circular arc track 24, the acting force from the second spring 25 to the driving pin 23 is counterclockwise, the second spring 25 can be selected as a tension spring, and the second spring 25 is connected to one end of the arcuate track 24. Both ends are engaged with the drive pin 23 and one end of the arcuate track 24, respectively.

When a flood disaster occurs, the water level in the ditch 11 rises, and the impact force and pressure of the water on the third piston 26 increases, propelling the third piston 26 into the gate pier 9, and the third piston 11 increases. 26 drives the second connecting rod 21 to move inward, the second connecting rod 21 drives the driving rod 22 to rotate, and the driving rod 22 drives the driving pin 23 to move within the arcuate trajectory 24. The driving pin 23 pulls the circular arc track 24 through the second spring 25, and the circular arc track 24 drives the single speed flywheel 15 to rotate with the outer ring, and the outer ring of the single speed flywheel 15 is Drive the two-way screw rod 8 further through the inner ring to rotate or tend to rotate, causing the two first internally threaded sleeves 14 to move further towards each other or tend to move towards each other, so that the auxiliary pier 10 and The slope of the ditch 11 is further brought into contact, and the acting force between the gate and the ditch 11 is increased, further guaranteeing the stability of the gate.

Furthermore, a second piston 19 is installed within the connection anchor 12, and a plurality of arc-shaped telescopic pieces 18 are connected between the second piston 19 and one end of the connection anchor 12 away from the auxiliary pier 10. , the arc-shaped elastic piece 18 protrudes outward, a plurality of protrusions are installed on the outer wall of the elastic piece 18, and a through groove is provided on the side wall on the connection anchor 12 for the arc-shaped elastic piece 18 to move. is opened, and the piston cavity communicates with one end of the second piston 19 installed on the connection anchor 12 via the first communication pipe 27.

When the third piston 26 moves into the gate pier 9, the third piston 26 presses the medium in the piston cavity into the connecting anchor 12 and moves the second piston 19 to the right, the second piston 19 The extensible piece 18 is pushed out, and the extensible piece 18 expands outward to be more closely connected to the slope of the ditch 11, further improving the connection stability between the gate and the slope.

In summary, the present invention provides an adjustable drainage safety gate for farmland drainage culverts, the working principle of which is as follows.

Under normal circumstances, the water level in the ditch 11 is low, the water flows downstream from the outlet, and the water level in the ditch 11 is stable, when a flood disaster occurs, the water level in the farmland and ditch will rise rapidly, and the floating plate will be removed from the water. 3 and the buoyant force on the airbag 2 pushes the floating plate 3 to rotate upward gradually, and the floating plate 3 drives the sector gear 4 to rotate, and the sector gear 4 connects to the first connection through the rack. The rod 7 is driven to move downward, the first connecting rod 7 is driven to move the first piston 6 downward, and the first piston 6 pumps the medium in the first cylinder body 5 with an air pipe. Press fit into the second cylinder body 34 and then propel the fourth piston 36 to one side away from the door body 29 , the fourth piston 36 threads the fully threaded 31 and the second female threaded sleeve 32 into the door body 29 . The second female threaded sleeve 32 is driven to move the two door bodies 29 far apart from each other via the second link 33 and the third connecting rod 30, so that the drain port is As the water inside the gate becomes larger, the water inside the gate is quickly discharged, and as drainage is performed, the water level inside the ditch 11 gradually decreases, the floating plate 3 also gradually rotates downward, and the floating plate 3 reverses the sector gear 4. The sector gear 4 drives the first piston 6 upwardly via the first connecting rod 7 so that the medium in the second cylinder body 34 returns to the first cylinder body 5. , under the action of the third spring 35, the fourth piston 36, the full thread 31 and the second internally threaded sleeve 32 are driven by the strut to move to one side of the door body 29, and the second internally threaded sleeve 32 is connected to the second link. 33, 3 through the connecting rod 30 to drive the two door bodies 29 to reset, and the drain outlet returns to its normal state. When a flood disaster occurs, the water level in the ditch 11 rises, and the impact force and pressure of the water on the third piston 26 increases, propelling the third piston 26 into the gate pier 9, and the third piston 11 increases. 26 drives the second connecting rod 21 to move inward, the second connecting rod 21 drives the driving rod 22 to rotate, and the driving rod 22 drives the driving pin 23 to move within the arcuate trajectory 24. The drive pin 23 pulls the circular arc track 24 through the second spring 25, and the circular arc track 24 drives the outer ring of the single speed flywheel 15 to rotate, and the outer ring of the single speed flywheel 15 is Drive the two-way screw rod 8 further through the inner ring to rotate or tend to rotate, causing the two first internally threaded sleeves 14 to move further towards each other or tend to move towards each other, so that the auxiliary pier 10 and The slope of the ditch 11 is further brought into contact, and the acting force between the gate and the ditch 11 is increased, further guaranteeing the stability of the gate.

It should be noted that for each of the above embodiments, for the sake of simple explanation, they are all expressed as a combination of a series of operations, and according to the present invention, other procedures or several steps performed simultaneously can be performed. The invention is not limited by the described order of operations. Next, it should be explained that all embodiments described in the specification are preferred embodiments, and the movements and modules involved are not necessarily required for the invention.

The above embodiments are only used to explain the technical solutions of the present invention, without limiting the protection scope of the present invention. The described embodiments are only some but not all embodiments of the invention. Based on these embodiments, all other embodiments obtained by those skilled in the art without any creative effort fall within the protection scope of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may understand the characteristics of each embodiment of the present invention without making creative efforts under non-conflicting conditions. In combination, with deletions or additions or with other adjustments, different technical solutions can be obtained which are not separated from the inventive concept, and these technical solutions can also be belongs to the protection scope protected by the present invention.

1, gate beam
2, airbag
3, floating plate
4, sector gear
5, 1st cylinder body
6, 1st piston
7, 1st connecting rod
8, two-way screw rod
9, gate pier
10, Auxiliary pier
11, ditch
12, connection anchor
13, 1st link
14, 1st female thread sleeve
15, single speed flywheel
16, gate body
17, bottom weir
18, Telescopic piece
19, 2nd piston
20, 1st spring
21, 2nd connecting rod
22, driving rod
23, drive pin
24, arc orbit
25, second spring
26, 3rd piston
27, first communication pipe
28, gate cylinder
29, door body
30, 3rd connecting rod
31, full thread
32, 2nd female thread sleeve
33, 2nd link
34, 2nd cylinder body
35, 3rd spring
36, 4th piston
37, air nozzle

Claims (10)

Two gate piers installed symmetrically and having a gate beam and a bottom weir fixedly connected between the top and bottom, respectively, and a gate body attached between the gate beam and the bottom weir. An adjustable drainage safety gate for a farmland drainage ditch, the gate comprising:
The gate body is
A gate cylinder whose top and bottom parts abut against a gate beam and a bottom weir, respectively, and an opening is installed in both cylinder walls on both sides;
two door bodies having a drain port between them, having an arcuate shape, being slidably connected to the cylinder wall of the gate cylinder, installed within the gate cylinder, and facing each other vertically;
a floating plate rotatably connected to the gate beam at one end and having an airbag attached to the other end and attached to the gate beam;
When the floating plate rotates upward, it drives the two door bodies apart, and when the floating plate rotates downward, it drives the two door bodies closer together, and the floating plate and the two door bodies move toward each other. An adjustable drainage safety gate for a farmland culvert, comprising: a linkage component connected between the door body and the door body. The farmland drainage according to claim 1, wherein the gate cylinder is rotatably installed between two gate piers, and a power motor for driving the gate cylinder to rotate is installed on the gate piers. Adjustable drainage safety gate for ditches. The adjustable drainage safety gate for farmland drainage ditches as claimed in claim 1, characterized in that the air bag is installed with an air nozzle. The linkage component includes a sector gear whose center of rotation overlaps the center of rotation of the floating plate and is fixed to one end of the floating plate away from the airbag;
A first piston is installed to be able to slide up and down, a first connecting rod is fixed to the first piston, a rack that meshes with a sector gear is installed to the first connecting rod, and a first cylinder is fixed to the gate beam. The main body and
fixed within the gate cylinder, one end close to the door body communicates with the bottom end of the first cylinder body via an air pipe, a fourth piston is installed inside, and one end of the fourth piston close to the door body communicates with the bottom end of the first cylinder body via an air pipe; a second cylinder body with a full thread installed in rotation, the full thread being centrally located between the two door bodies;
fixed to the end wall of the gate cylinder, the axis of which overlaps with the center line of the gate cylinder, two third connecting rods are rotatably attached to the connecting shaft, and the two third connecting rods are respectively attached to the two door bodies. the connecting shaft connected by a hinge;
a second internally threaded sleeve threadedly connected to the full thread and hingedly connected to two second links, each of the two second links being hingedly connected to two third connecting rods;
A third spring is fixed to the other side of the fourth piston, one end of which is separated from the fourth piston extends through the second cylinder body and to the outside thereof, and a third spring is connected between the column and the second cylinder body, and the third spring is fixed to the other side of the fourth piston. 2. An adjustable drainage safety gate for a farmland drainage ditch as claimed in claim 1, characterized in that the force acting from the spring on the strut includes the strut facing one side of the door body. A mounting groove is opened in the outer wall of the gate pier, and an auxiliary pier is installed in the mounting groove, and the auxiliary pier is connected to the gate pier by sliding horizontally, and the auxiliary pier is moved into the gate pier. The adjustable drainage safety gate for farmland drainage ditches as claimed in claim 1, characterized in that an adjustment mechanism is installed for driving the gate. The adjustment mechanism is
a two-way screw rod mounted vertically in rotation within the gate pier;
two first internally threaded sleeves threadedly connected to the two threaded portions of the bidirectional screw rod;
6. The farmland drainage culvert of claim 5, further comprising: a first link having both ends hingedly connected to the first female threaded sleeve and the auxiliary pier, respectively, and connected between the first female threaded sleeve and the auxiliary pier. Adjustable drainage safety gate for. A stabilizing component is attached to the gate pier, the stabilizing component comprising:
a piston cavity whose length direction is parallel to the water flow direction, in which a third piston is installed, and which is opened in a side wall of the gate pier close to the water flow direction;
a second connecting rod fixed to the third piston, wherein a first spring is fitted to the second connecting rod in the piston cavity, and both ends of the first spring are one end of the third piston and one end of the piston cavity, respectively; a second connecting rod abutting the third piston, the force acting from the first spring on the third piston being opposite to the water flow direction;
A single-speed flywheel with an arcuate track fixed on the outside wall and mounted on a bidirectional screw rod;
a drive rod rotatably connected to the bidirectional screw rod and on one side of the single speed flywheel, with a mandrel fixed to one end of said second connecting rod proximal to the drive rod, through which the mandrel slides; a drive rod with a movable groove for;
A driving pin is fixed to the driving rod, the driving pin is inserted into an arcuate track, a second spring is installed in the arcuate track, and both ends of the second spring are connected to one end of the drive pin and the arcuate track, respectively. 7. The adjustable drainage safety gate for farmland drainage ditches as claimed in claim 6, wherein the second spring is connected to the drive pin and the acting force from the second spring is counterclockwise. The adjustment for farmland drainage ditches according to claim 7, characterized in that a plurality of connection anchors are fixed to the outer wall of the auxiliary pier at intervals, and the connection anchors are inserted into the slope of the ditch. Possible drainage safety gate. A second piston is installed in the connection anchor, a plurality of arc-shaped telescoping pieces are connected between the second piston and one end of the connection anchor away from the auxiliary pier, and a plurality of arc-shaped telescoping pieces are connected to an outer wall of the telescoping piece. A protrusion is installed on the connection anchor, a through groove is opened in the side wall on the connection anchor for the movement of the arc-shaped elastic piece, and the piston cavity is connected to the connection anchor in which a second piston is installed through the first communication pipe. 9. The adjustable drainage safety gate for farmland drainage ditches according to claim 8, characterized in that it communicates with one end of the gate. Adjustable for farmland drainage ditches according to claim 1, characterized in that the gate pier is fixedly connected to the slope of the ditch, and the bottom weir is fixedly connected to the ditch floor of the ditch. Drain safety gate.