CN114128599A

CN114128599A - Tree seedling irrigation spray head device and application process

Info

Publication number: CN114128599A
Application number: CN202111359493.4A
Authority: CN
Inventors: 徐昌毅; 郑春凤; 郑绍华; 徐孝辉; 王瑞珍; 赖礼彭
Original assignee: Fujian Chunqiu Mingzhu Wine Manor Co ltd
Current assignee: Fujian Chunqiu Mingzhu Wine Manor Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-03-04
Anticipated expiration: 2041-11-17
Also published as: CN114128599B

Abstract

The invention relates to the technical field of sapling planting, and provides a sapling irrigation spray head device which comprises a supporting shell, wherein a liquid level pipe is fixedly connected to the inner wall of the supporting shell, a buoyancy ball is connected to the inner wall of the liquid level pipe in a sliding mode, a pull rope is fixedly connected to the top of the buoyancy ball, a liquid level judging mechanism is fixedly connected to the top of the pull rope, a progressive mechanism is movably connected to the left side and the right side of the liquid level judging mechanism, and a section adjusting mechanism is movably connected to the top of the progressive mechanism. This shower nozzle device is irrigated to sapling and application technology extrudees the top spring when through the arm-tie rebound, and the top spring passes the roof, and restriction tooth, pressure spring cooperation restriction level tooth carry out the layering, insert the position that changes the sloping block to one side for the sloping block removes to the direction of spray line, and the sloping block removes and makes the sliding door remove, and the sliding door reduces the delivery port area of spray line, increases diffusion area, utilizes buoyancy layering level adjustment diffusion position.

Description

Tree seedling irrigation spray head device and application process

Technical Field

The invention relates to the technical field of sapling planting, in particular to a sapling irrigation spray head device and a using process.

Background

The technical measure that the irrigation of the saplings is used for supplementing the water needed by crops is adopted, the water requirement of the saplings cannot be met due to insufficient precipitation or uneven distribution in northern areas, so that the irrigation of artificial ground is needed to supplement the deficiency of natural rainfall, the survival of the saplings is helped, and the irrigation of the saplings plays an important role in environmental greening.

In prior art, sapling irrigation sprinkler device has the effect of automatic expansion spraying range, and it utilizes to change the bellied position of shower nozzle department and adjusts spraying range, because of it has the removal effect, so water pressure sprays and can lead to protruding vibration, influences shower nozzle life, and can't judge the irrigation degree of depth automatically, needs the manual work to judge, and both can not unify the allotment, expand spraying range and stop spraying.

Therefore, the demand for high-reliability products is urgent, and a seedling irrigation spray nozzle device and a using process thereof are provided, wherein the seedling irrigation spray nozzle device has the effects of judging irrigation depth by using buoyancy, preventing excessive irrigation and changing a diffusion range by using buoyancy graded adjustment.

Disclosure of Invention

The invention aims to provide a seedling irrigation spray head device and a using process, and aims to solve the problems in the background art.

In order to achieve the above object, the present invention provides the following technical solutions

The utility model provides a shower nozzle device is irrigated to sapling, includes supporting housing, supporting housing's inner wall fixedly connected with liquid level pipe, the inner wall sliding connection of liquid level pipe has the buoyancy ball, the top fixedly connected with stay cord of buoyancy ball, the mechanism is judged to the top fixedly connected with liquid level of stay cord, the equal swing joint in the left and right sides that the mechanism was judged to the liquid level has progressive mechanism, the top swing joint that progressive mechanism has cross-section guiding mechanism, the top swing joint that the mechanism was judged to the liquid level has contact switch.

Further, the liquid level judgment mechanism comprises a pulling plate, a sliding block is fixedly connected to the top of the pulling plate, a fixing frame is connected to the outer wall of the sliding block in a sliding mode, a reset spring is fixedly connected to the top of the pulling plate and located on the left side and the right side of the sliding block, a flat plate is fixedly connected to the top of the reset spring, a supporting frame is fixedly connected to the bottom of the flat plate, and the bottom of the supporting frame is fixedly connected with a contact switch.

Furthermore, the progressive mechanism comprises a top spring, a top plate is fixedly connected to the top of the top spring, level teeth are arranged on the left side and the right side of the top plate, limiting teeth are movably connected to the outer wall of the level teeth, a pressure spring is fixedly connected to one side, far away from the level teeth, of the limiting teeth, and an inclined insertion hole is fixedly connected to the top of the top plate.

Further, cross-section adjustment mechanism includes the sloping block, the top sliding connection of sloping block has the slide rail, the outer wall fixedly connected with spray pipe of slide rail, the outer wall fixedly connected with of sloping block inserts the door, the top fixedly connected with diffuser plate of spray pipe, the inclined plane of sloping block is the same with the inclined plane of inserting to one side.

Furthermore, the top of fixed frame and dull and stereotyped fixed connection, the outer wall and the pressure spring fixed connection of support frame, the left and right sides of arm-tie all with support frame sliding connection, the support frame is equipped with two and about arm-tie central symmetry, and the distance between two support frames equals with the length of arm-tie, and the elastic rigidity of reset spring is bigger than the elastic rigidity of top spring.

Further, the roof is equipped with two, and about arm-tie central symmetry, and the outer wall of every roof all is equipped with six level teeth, and three level teeth are a set of, and the level tooth divide into four levels, by last one-level, second grade, tertiary and level four of dividing into down. The top spring is a spring telescopic rod and consists of a spring and a telescopic rod, the outer wall of the inclined insertion is connected with the flat plate in a sliding mode, and an opening is formed in the inner wall, located on the spraying pipe, of the inclined insertion.

Furthermore, the diffuser plate has support frame and concave plate to constitute, and the back connection of spray tube has the water pipe, inserts the door and runs through the spray tube, inserts the door and is equipped with two, and during the beginning, two are inserted the door and are separated by the distance the biggest.

Furthermore, the top of the pull rope is fixedly connected with the pull plate, the pull rope penetrates through the liquid level pipe, a through hole is formed in the liquid level pipe at the joint between the pull rope and the liquid level pipe, a cavity is formed inside the buoyancy ball, the top of the pull plate is fixedly connected with the top spring, and the outer wall of the inclined insert is movably connected with the inclined block.

A spray head device for irrigation of seedlings comprises the following using process of the spray head device:

s1, firstly, at the beginning, the interval between two insert doors is the largest, water is introduced into a spraying pipe by a water pipe, the spraying pipe sprays out the water, the water collides with a diffusion plate to perform the effect of diffusion spraying, and the spraying pipe and the diffusion plate are matched to perform the regional irrigation;

s2, initially, the buoyancy ball utilizes the pull rope to pull down the pull plate through self gravity, the pull plate pulls the sliding block to generate uniqueness, the sliding block, the fixing frame, the supporting frame and the pull plate are matched to control the movement to be vertical, the blocking is prevented, along with the irrigation, the land can not absorb excessive water, water flows over the ground and flows into the liquid level pipe, the buoyancy ball is floated by the buoyancy of the water due to the fact that the inside of the buoyancy ball is a cavity, and at the moment, the pull plate is pulled back by the sliding block;

s3, extruding a top spring while moving upwards by a pulling plate, pushing a top plate by the top spring, but limiting the movement of hierarchical teeth by the aid of limiting teeth and a pressure spring which are matched with each other to limit the movement of the hierarchical teeth, so that the top plate cannot move due to the fact that the top spring moves and compresses, when water higher than the ground is the same as one fifth of the height of a liquid level pipe, the lifting thrust of the pulling plate enables the hierarchical teeth to break through the limitation of the pressure spring, but each top plate is provided with six hierarchical teeth, the hierarchical teeth are divided into four hierarchical levels, the limiting teeth break through the first level and enter the second level, the inclined block is inserted to change the position of the inclined block to enable the inclined block to move towards the direction of the spraying pipe, the inclined block moves to enable a plug door to move, the plug door reduces the area of a water outlet of the spraying pipe, the pressure of discharged water is increased, the position of the discharged water for spraying irrigation becomes far, and each time the height of the liquid level pipe rises, the top plate can be layered, the opening discharged by the inserting door is smaller, and the diffusion area is increased continuously;

s4, when the liquid level height that is higher than liquid level ground reached the liquid level pipe height when four fifths, the roof went forward the fourth level, top and the slide rail contact of inserting to one side this moment, two are inserted the door and are pegged graft each other, it seals the spray tube completely to insert the door, when inserting the door removal, the first step of arm-tie rebound contacts with contact switch, stop drawing water, avoid water pressure too big to lead to the damage, nevertheless because rivers inertia, water still can spout, it makes water no longer flow to insert the door complete closure this moment, avoid extravagant and excessive irrigation.

Compared with the prior art, the invention has the following beneficial effects:

1. this shower nozzle device and use technology are irrigated to sapling, let in the spray tube with water through the water pipe, the spray tube is with water blowout, water strikes with the diffuser plate, the effect that the diffusion was sprayed is carried out, the spray tube, the diffuser plate cooperation is carried out the scope nature and is irrigated, along with irrigating going on, the unable unnecessary water yield that absorbs of soil, water will flood ground, the buoyancy ball will be floated by the buoyancy of water, the sliding block will be drawn back the arm-tie part this moment, extrude the top spring when the arm-tie rebound, the top spring passes the roof, the restriction tooth, pressure spring cooperation restriction level tooth, carry out the hierarchy level, insert the position that changes the sloping block to one side, make the sloping block move to the direction of spray tube, the sloping block removes and makes the inserted door remove, the inserted door reduces the delivery port area of spray tube, increase diffusion area, thereby realize utilizing the effect of buoyancy hierarchical adjustment diffusion position.

2. This shower nozzle device and use technology are irrigated to sapling, when reaching the four fifths of liquid level pipe height through the liquid level height that is higher than liquid level ground, the roof passes to the fourth level, the top and the slide rail contact of inserting to one side this moment, two are inserted the door and are pegged graft each other, it seals the spray tube totally to insert the door, when inserting the door and remove, the arm-tie rebound earlier one step and the contact switch contact, stop drawing water, avoid the too big damage that leads to of water pressure, nevertheless because rivers inertia, water still can spout, insert the door complete closure this moment and make water no longer flow, thereby realize avoiding extravagant and the effect of excessively irrigating.

Drawings

FIG. 1 is a schematic front view of a support housing structure according to the present invention;

FIG. 2 is a schematic view of a sprinkler tube of the present invention;

FIG. 3 is a schematic view of a liquid level tube configuration of the present invention;

FIG. 4 is a schematic front view of the pulling plate structure of the present invention;

FIG. 5 is a schematic front view of the liquid level judging mechanism according to the present invention;

FIG. 6 is a front view of the progressive mechanism of the present invention;

fig. 7 is a schematic front view of the contact switch structure of the present invention.

In the figure: 1. a support housing; 2. a liquid level tube; 3. a buoyant ball; 4. pulling a rope; 5. pulling a plate; 6. a slider; 7. a fixing frame; 8. a reset spring; 9. a flat plate; 10. a support frame; 11. a spring is supported; 12. a top plate; 13. a hierarchy tooth; 14. a restricting tooth; 15. a pressure spring; 16. obliquely inserting; 17. a sloping block; 18. a slide rail; 19. a spray tube; 20. inserting a door; 21. a diffusion plate; 22. a liquid level judging mechanism; 23. a progressive mechanism; 24. a section adjusting mechanism; 25. a contact switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1 and 6, a spray head device for irrigation of saplings comprises a supporting shell 1, wherein a liquid level pipe 2 is fixedly connected to the inner wall of the supporting shell 1, a buoyancy ball 3 is slidably connected to the inner wall of the liquid level pipe 2, a pull rope 4 is fixedly connected to the top of the buoyancy ball 3, a liquid level judging mechanism 22 is fixedly connected to the top of the pull rope 4, a progressive mechanism 23 is movably connected to each of the left side and the right side of the liquid level judging mechanism 22, a section adjusting mechanism 24 is movably connected to the top of the progressive mechanism 23, and a contact switch is movably connected to the top of the liquid level judging mechanism 22.

Further, the progressive mechanism 23 includes a top spring 11, a top plate 12 is fixedly connected to the top of the top spring 11, level teeth 13 are formed on the left and right sides of the top plate 12, a limiting tooth 14 is movably connected to the outer wall of the level teeth 13, a pressure spring 15 is fixedly connected to one side of the limiting tooth 14, which is far away from the level teeth 13, and an inclined insert 16 is fixedly connected to the top of the top plate 12.

Water is introduced into the spraying pipe 19 through a water pipe, the spraying pipe 19 sprays water, water is collided with the diffusion plate 21, the effect of diffusion spraying is carried out, the spraying pipe 19 and the diffusion plate 21 are matched for carrying out range irrigation, along with the irrigation, the ground can not absorb excessive water, water can flood the ground, the buoyancy ball 3 can be floated by the buoyancy of the water, at the moment, the sliding block 6 pulls back a part of the pulling plate 5, the pulling plate 5 extrudes the top spring 11 when moving upwards, the top spring 11 pushes the top plate 12, the limiting teeth 14 and the pressure spring 15 are matched with the limiting layer teeth 13 to carry out layering, the inclined insert 16 changes the position of the inclined block 17, the inclined block 17 moves towards the spraying pipe 19, the inclined block 17 moves to enable the inserted door 20 to move, the inserted door 20 reduces the water outlet area of the spraying pipe 19, the diffusion area is increased, and the diffusion position is adjusted by utilizing the buoyancy layering.

Example two:

referring to fig. 1 and 7, a spray head device for irrigation of tree seedlings comprises a supporting shell 1, wherein a liquid level pipe 2 is fixedly connected to the inner wall of the supporting shell 1, a buoyancy ball 3 is slidably connected to the inner wall of the liquid level pipe 2, a pull rope 4 is fixedly connected to the top of the buoyancy ball 3, a liquid level judging mechanism 22 is fixedly connected to the top of the pull rope 4, a progressive mechanism 23 is movably connected to each of the left side and the right side of the liquid level judging mechanism 22, a section adjusting mechanism 24 is movably connected to the top of the progressive mechanism 23, and a contact switch is movably connected to the top of the liquid level judging mechanism 22.

Further, the section adjusting mechanism 24 includes an inclined block 17, a slide rail 18 is slidably connected to the top of the inclined block 17, a spray pipe 19 is fixedly connected to the outer wall of the slide rail 18, an inserting door 20 is fixedly connected to the outer wall of the inclined block 17, a diffusion plate 21 is fixedly connected to the top of the spray pipe 19, and the inclined plane of the inclined block 17 is the same as the inclined plane of the inclined inserting door 16.

When reaching the fourth fifths of the height of the liquid level pipe 2 through the liquid level height higher than the liquid level ground, the top plate 12 is advanced to the fourth stage, the top of the inclined insertion 16 contacts with the slide rail 18 at the moment, two insertion doors 20 are inserted and connected with each other, the insertion doors 20 completely seal the spraying pipes 19, when the insertion doors 20 move, the pull plate 5 moves upwards to contact with the contact switch in one step, water pumping is stopped, the damage caused by overlarge water pressure is avoided, but because of the inertia of water flow, water can still be sprayed out, the insertion doors 20 are completely closed to enable water not to flow out, and therefore the effects of waste and excessive irrigation are avoided.

EXAMPLE III

Referring to fig. 1-7, a spray head device for irrigation of tree seedlings comprises a supporting shell 1, a liquid level pipe 2 is fixedly connected to the inner wall of the supporting shell 1, a buoyancy ball 3 is slidably connected to the inner wall of the liquid level pipe 2, a pull rope 4 is fixedly connected to the top of the buoyancy ball 3, a liquid level judging mechanism 22 is fixedly connected to the top of the pull rope 4, the liquid level judging mechanism 22 comprises a pull plate 5, a sliding block 6 is fixedly connected to the top of the pull plate 5, a fixing frame 7 is slidably connected to the outer wall of the sliding block 6, the top of the fixing frame 7 is fixedly connected to a flat plate 9, the outer wall of a support frame 10 is fixedly connected to a pressure spring 15, the left side and the right side of the pull plate 5 are slidably connected to support frames 10, the two support frames 10 are arranged symmetrically with respect to the center of the pull plate 5, the distance between the two support frames 10 is equal to the length of the pull plate 5, and the elastic rigidity of a return spring 8 is greater than that of a top spring 11, the top of arm-tie 5 just is located the equal fixedly connected with of the left and right sides of sliding block 6 and resets spring 8, the top fixedly connected with of resetting spring 8 is dull and stereotyped 9, dull and stereotyped 9 bottom fixedly connected with support frame 10, the bottom and the contact switch fixed connection of support frame 10, the equal swing joint in the left and right sides of mechanism 22 is judged to the liquid level has progressive mechanism 23, progressive mechanism 23 includes top spring 11, the top fixedly connected with roof 12 of top spring 11, roof 12 is equipped with two, and about arm-tie 5 central symmetry, the outer wall of every roof 12 all is equipped with six level teeth 13, and three level teeth 13 are a set of, and level teeth 13 divide into four levels, by last one-level, second grade, third grade and level down. The top spring 11 is a spring telescopic rod and consists of a spring and a telescopic rod, the outer wall of the inclined insertion 16 is connected with the flat plate 9 in a sliding manner, an opening is formed in the inner wall, located above the inclined insertion 16, of the spraying pipe 19, the left side and the right side of the top plate 12 are provided with hierarchical teeth 13, the outer wall of each hierarchical tooth 13 is movably connected with a limiting tooth 14, one side, far away from each hierarchical tooth 13, of each limiting tooth 14 is fixedly connected with a pressure spring 15, the top of the top plate 12 is fixedly connected with the inclined insertion 16, the top of the progressive mechanism 23 is movably connected with a cross section adjusting mechanism 24, each cross section adjusting mechanism 24 comprises an inclined block 17, the top of each inclined block 17 is connected with a sliding rail 18 in a sliding manner, the outer wall of each sliding rail 18 is fixedly connected with the spraying pipe 19, the outer wall of each inclined block 17 is fixedly connected with an insertion door 20, the top of each spraying pipe 19 is fixedly connected with a diffusion plate 21, and each diffusion plate 21 consists of a support frame and a concave plate, the back of the spray pipe 19 is connected with a water pipe, the inserting door 20 penetrates through the spray pipe 19, the inserting door 20 is provided with two inserting doors 20, the distance between the two inserting doors 20 is the largest initially, the inclined plane of the inclined block 17 is the same as the inclined plane of the inclined block 16, the diffusion plate 21 is composed of a support frame and a concave plate, the back of the spray pipe 19 is connected with the water pipe, the inserting doors 20 penetrate through the spray pipe 19, the inserting doors 20 are provided with two inserting doors 20, the distance between the two inserting doors 20 is the largest initially, the top of the liquid level judging mechanism 22 is movably connected with a contact switch, the top of the pull rope 4 is fixedly connected with the pull plate 5, the pull rope 4 penetrates through the liquid level pipe 2, the connection part between the pull rope 4 and the liquid level pipe 2 is provided with a through hole, the inside of the buoyancy ball 3 is a cavity, the top of the pull plate 5 is fixedly connected with the top spring 11, and the outer wall of the inclined block 16 is movably connected with the inclined block 17.

s1, firstly, at the beginning, the interval between two insert doors 20 is the largest, water is introduced into the spray pipe 19 through the water pipe, the spray pipe 19 sprays out the water, the water collides with the diffusion plate 21 to perform the effect of diffusion spraying, and the spray pipe 19 and the diffusion plate 21 are matched for performing the regional irrigation;

s2, initially, the buoyancy ball 3 pulls the pull plate 5 downwards through the pull rope 4 by means of self gravity, the pull plate 5 pulls the sliding block 6 to generate uniqueness, the sliding block 6, the fixed frame 7, the support frame 10 and the pull plate 5 are matched to control movement to be vertical, blocking is prevented, the ground cannot absorb excessive water amount along with irrigation, water flows over the ground and flows into the liquid level pipe 2, the buoyancy ball 3 is floated by buoyancy of the water due to the fact that the inside of the buoyancy ball 3 is a cavity, and the pull plate 5 is pulled back by the sliding block 6;

s3, pressing the top spring 11 while the pulling plate 5 moves upwards, the top spring 11 pushes the top plate 12, but the limiting teeth 14 and the pressure spring 15 cooperate to limit the movement of the level teeth 13, so the top spring 11 moves and compresses and cannot move the top plate 12, when the water above the ground is the same as one fifth of the height of the liquid level pipe 2, the lifting thrust of the pulling plate 5 causes the level teeth 13 to break through the limitation of the pressure spring 15, but each top plate 12 is provided with six level teeth 13, three level teeth 13 are a group and are divided into four levels, the limiting teeth 14 break through one level and enter the second level, the inclined insertion 16 lifts the liquid level pipe 2 by one fifth of the height, the inclined insertion 16 changes the position of the inclined block 17, the inclined block 17 moves towards the spraying pipe 19, the inclined block 17 moves to cause the inserted door 20 to move, the inserted door 20 reduces the water outlet area of the spraying pipe 19, the water pressure of the discharge is increased, and the position of the diffusion plate 21 is unchanged, the position of the discharged water for spraying irrigation becomes far, and when the liquid level rises to one fifth of the height of the liquid level pipe 2, the top plate 12 can be gradually layered, the opening discharged by the inserting door 20 is smaller, and the diffusion area is continuously increased;

s4, when the liquid level higher than the liquid level ground reaches four fifths of the height of the liquid level pipe 2, the top plate 12 is advanced to the fourth stage, at the moment, the top of the inclined insertion 16 is in contact with the sliding rail 18, the two insertion doors 20 are inserted into each other, the insertion doors 20 completely seal the spraying pipe 19, when the insertion doors 20 move, the pull plate 5 moves upwards to be in contact with the contact switch in one step, water pumping is stopped, damage caused by overlarge water pressure is avoided, water can be sprayed out due to inertia of water flow, at the moment, the insertion doors 20 are completely closed, so that the water does not flow out, and waste and excessive irrigation are avoided.

In conclusion, according to the tree seedling irrigation spray head device and the using process, water is introduced into the spray pipe 19 through a water pipe, the spray pipe 19 sprays the water, the water collides with the diffusion plate 21 to achieve the effect of diffusion spraying, the spray pipe 19 and the diffusion plate 21 are matched to perform extensive irrigation, the land cannot absorb excessive water along with the irrigation, the water overflows the ground, the buoyancy ball 3 is floated by the buoyancy of the water, the sliding block 6 pulls the pull plate 5 back to a part, the pull plate 5 moves upwards and extrudes the top spring 11, the top spring 11 pushes the top plate 12, the limiting teeth 14 and the pressure spring 15 are matched with the limiting level teeth 13 to perform level division, the inclined insertion 16 changes the position of the inclined block 17, the inclined block 17 moves towards the direction of the spraying pipe 19, the inserted door 20 moves due to the movement of the inclined block 17, the area of the water outlet of the spraying pipe 19 is reduced by the inserted door 20, the diffusion area is increased, and the diffusion position is adjusted in a layered mode by utilizing buoyancy. When reaching the fourth fifths of the height of the liquid level pipe 2 through the liquid level height higher than the liquid level ground, the top plate 12 is advanced to the fourth stage, the top of the inclined insertion 16 is contacted with the slide rail 18 at the moment, the two insertion doors 20 are mutually inserted, the insertion doors 20 completely seal the spraying pipe 19, when the insertion doors 20 move, the pull plate 5 moves upwards to contact with the contact switch in one step, water pumping is stopped, the damage caused by overlarge water pressure is avoided, but due to the inertia of water flow, water can still be sprayed out, the insertion doors 20 are completely closed to enable water not to flow out, and waste and excessive irrigation are avoided.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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

Claims

1. The utility model provides a seedling irrigation spray head device, includes support casing (1), its characterized in that: the inner wall fixedly connected with liquid level pipe (2) of support housing (1), the inner wall sliding connection of liquid level pipe (2) has buoyancy ball (3), top fixedly connected with stay cord (4) of buoyancy ball (3), mechanism (22) is judged to the top fixedly connected with liquid level of stay cord (4), the equal swing joint in the left and right sides of mechanism (22) is judged to the liquid level has progressive mechanism (23), the top swing joint of progressive mechanism (23) has cross-section adjustment mechanism (24), the top swing joint of mechanism (22) is judged to the liquid level has (25) contact switch.

2. The spray head device for irrigating seedlings according to claim 1, wherein: liquid level judges mechanism (22) including arm-tie (5), top fixedly connected with sliding block (6) of arm-tie (5), the outer wall sliding connection of sliding block (6) has fixed frame (7), the top of arm-tie (5) just is located the equal fixedly connected with of the left and right sides of sliding block (6) and resets spring (8), the top fixedly connected with of spring (8) resets dull and stereotypedly (9), dull and stereotyped (9) bottom fixedly connected with support frame (10).

3. The spray head device for irrigating seedlings according to claim 1, wherein: the progressive mechanism (23) comprises a top spring (11), a top plate (12) is fixedly connected to the top of the top spring (11), hierarchical teeth (13) are arranged on the left side and the right side of the top plate (12), limiting teeth (14) are movably connected to the outer wall of the hierarchical teeth (13), and a pressure spring (15) is fixedly connected to one side, far away from the hierarchical teeth (13), of the limiting teeth (14).

4. The spray head device for irrigating seedlings according to claim 1, wherein: the section adjusting mechanism (24) comprises an inclined block (17), the top of the inclined block (17) is connected with a sliding rail (18) in a sliding mode, the outer wall of the sliding rail (18) is fixedly connected with a spraying pipe (19), the outer wall of the inclined block (17) is fixedly connected with an inserting door (20), and the top of the spraying pipe (19) is fixedly connected with a diffusion plate (21).

5. The spray head device for irrigating seedlings according to claim 2, wherein: the top and dull and stereotyped (9) fixed connection of fixed frame (7), the outer wall and pressure spring (15) fixed connection of support frame (10), the left and right sides of arm-tie (5) all with support frame (10) sliding connection.

6. The spray head device for irrigating seedlings according to claim 3, wherein: the top plates (12) are two and are centrosymmetric relative to the pulling plate (5), and six hierarchical teeth (13) are arranged on the outer wall of each top plate (12).

7. The spray head device for irrigating seedlings according to claim 4, wherein: the diffuser plate (21) is composed of a support frame and a concave plate, the back of the spray pipe (19) is connected with a water pipe, and the inserting door (20) penetrates through the spray pipe (19).

8. The spray head device for irrigating seedlings according to claim 1, wherein: the top and the arm-tie (5) fixed connection of stay cord (4), liquid level pipe (2) are run through in stay cord (4), and the junction between stay cord (4) and liquid level pipe (2), through-hole have been seted up in liquid level pipe (2), and buoyancy ball (3) are inside to be the cavity, the top and the top spring (11) fixed connection of arm-tie (5), the outer wall and sloping block (17) swing joint of oblique plug (16).

9. The spray head device for irrigating seedlings according to claim 1, wherein: the use process of the spray head device comprises the following specific steps:

s1, firstly, at the beginning, the interval between two insert doors (20) is the largest, water is introduced into a spraying pipe (19) through a water pipe, the spraying pipe (19) sprays out the water, the water collides with a diffusion plate (21) to perform the effect of diffusion spraying, and the spraying pipe (19) and the diffusion plate (21) are matched for performing the regional irrigation;

s2, initially, the pulling plate (5) is pulled down by the buoyancy ball (3) through the pulling rope (4) through self gravity, the pulling plate (5) pulls the sliding block (6) to generate uniqueness, the sliding block (6), the fixing frame (7), the supporting frame (10) and the pulling plate (5) are matched to control to move vertically to prevent blocking, along with irrigation, the ground cannot absorb excessive water, water flows over the ground and flows into the liquid level pipe (2), the buoyancy ball (3) is floated by buoyancy of the water due to the fact that the inner portion of the buoyancy ball (3) is a cavity, and at the moment, the pulling plate (5) is pulled back by the sliding block (6);

s3, the pulling plate (5) moves upwards and extrudes the top spring (11), the top spring (11) pushes the top plate (12), but the limiting teeth (14) and the pressure spring (15) are matched with the limiting teeth (13) to limit the movement of the level teeth (13), so the top plate (12) cannot move due to movement and compression of the top spring (11), when water higher than the ground is the same as the liquid level pipe (2) in height of one fifth, the pulling plate (5) rises to push the level teeth (13) to break through the limitation of the pressure spring (15), each top plate (12) is provided with six level teeth (13), three level teeth (13) form a group and are divided into four levels, the limiting teeth (14) break through the first level and enter the second level, the inclined insert (16) rises to the liquid level pipe (2) in height of one fifth, the inclined insert (16) changes the position of the inclined block (17), and the inclined block (17) moves towards the direction of the spraying pipe (19), the inclined block (17) moves to enable the inserting door (20) to move, the inserting door (20) reduces the area of a water outlet of the spraying pipe (19), the pressure of discharged water is increased, the position of the diffusion plate (21) is unchanged, the position of the discharged water for spraying irrigation is increased, and the top plate (12) can be gradually layered when the liquid level rises to one fifth of the height of the liquid level pipe (2), so that an opening discharged by the inserting door (20) is smaller, and the diffusion area is continuously increased;

s4, when the height of the liquid level higher than the liquid level ground reaches four fifths of the height of the liquid level pipe (2), the top plate (12) advances to the fourth stage, the top of the inclined insertion (16) is in contact with the sliding rail (18), the two insertion doors (20) are inserted into each other, the insertion doors (20) completely seal the spraying pipe (19), when the insertion doors (20) move, the pulling plate (5) moves upwards to be in contact with the contact switch (25) in the first step, water pumping is stopped, damage caused by overlarge water pressure is avoided, water can be sprayed out due to water flow inertia, the insertion doors (20) are completely closed to enable the water not to flow out, and waste and over irrigation are avoided.