CN212306327U

CN212306327U - Fertilizer-water coupled irrigation equipment under grape root-limiting cultivation condition

Info

Publication number: CN212306327U
Application number: CN202021045756.5U
Authority: CN
Inventors: 吕英忠; 梁志宏; 黄军保; 张拥兵; 王海松; 李卓
Original assignee: Pomology Institute Shanxi Academy of Agricultural Sciences
Current assignee: Pomology Institute Shanxi Academy of Agricultural Sciences
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-01-08
Anticipated expiration: 2030-06-09

Abstract

The utility model belongs to the grape cultivation field, concretely relates to irrigation equipment of fertile water coupling under grape limit root cultivation condition has solved the too much problem that causes the device to be difficult to remove easily of wheel position adhesion earth, has still solved the problem that the shower nozzle takes place to block up easily. The device comprises a bottom plate, wherein a mounting seat is welded at the lower end of the bottom plate, wheels are arranged in the mounting seat, a mud scraper is sleeved on the outer side of each wheel, a spring is arranged on the outer side of each mud scraper, the tail end of each spring is in contact connection with the mounting seat, a support is welded at the upper end of the bottom plate, and a stirring box is welded at the upper end of each support; the utility model discloses an connect the scraper at the wheel overcoat, the scraper outside sets up the spring, presses the scraper on the wheel through the spring, when the relative scraper of wheel removed, makes when wheel surface adhesion earth the scraper can shovel the earth on the wheel through the scraper for the device is more laborsaving at the removal in-process.

Description

Fertilizer-water coupled irrigation equipment under grape root-limiting cultivation condition

Technical Field

The utility model relates to a grape cultivation technical field specifically is a fertile water coupling's irrigation equipment under grape limit root cultivation condition.

Background

The grapes are one of fruit trees with the fastest effect, have the advantages of high yield, stable yield and the like, and are quite stable under normal management conditions. The grape grafting survival rate is high, the grape is easy to change seeds, and the grape can be used for brewing grape wine to prepare grape juice besides fresh grape food, and has the effects of preventing heatstroke, quenching thirst, reducing blood fat and reducing blood pressure. In addition, the grape can also be aired into raisins and prepared into canned grapes with syrup, fruit pulp, jelly and the like, so that the planting benefit of the grapes is considerable.

However, in the prior art, irrigate under the grape limit root cultivation condition, can't draw the definite and coupling technique of fertilization kind and fertilization volume through the contrast to, current irrigation equipment, when removing the irrigation, the easy adhesion earth in wheel position, the adhesion earth is too much to cause the device to be difficult to remove easily, because fertilizer mixes inhomogeneously in the irrigation process, the caking appears easily, leads to the shower nozzle to take place easily and blocks up, consequently, needs to improve prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an irrigation equipment of fertile water coupling under grape limit root cultivation condition has solved and can't reach the definite and coupling technical problem of fertilization kind and fertilization volume through the contrast, has still solved the too much problem that causes the device to be difficult to remove easily of wheel position adhesion earth, has still solved the easy problem that takes place to block up of shower nozzle.

In order to achieve the above object, the utility model provides a following technical scheme:

a method for coupling fertilizer and water under the condition of grape root-limiting cultivation comprises the following specific steps:

firstly, mixing and mixing 2-3 parts of garden soil, 2-3 parts of decomposed waste mushroom sticks, 3-4 parts of decomposed cow dung, 1 part of perlite, 1 part of vermiculite, 1 part of water-retaining agent, 1 part of granular controlled release fertilizer and 0.3-0.7 part of trace element fertilizer to prepare the culture medium.

And secondly, after 15-25cm of the culture substrate prepared in the first step is laid in a grape root-limiting culture container, the diameter of the grape root-limiting culture container is 30cm, the height of the grape root-limiting culture container is 40cm, grape roots are placed in the grape root-limiting culture container, and the culture substrate prepared in the first step is backfilled by 10-20 cm.

Thirdly, ridging the land after land preparation, digging pits with the diameter of 35-40cm and the depth of 40-50cm on the ridges, placing the grape root-limiting cultivation container into the pits, backfilling soil and fixing.

Fourthly, irrigating the grapery at regular time by utilizing irrigation equipment coupled with fertilizer and water in a water-fertilizer ratio of 10: 1, irrigating 500ml of water-fertilizer mixture every time, wetting root soil by micro-sprinkling irrigation, checking and recording the growth condition of grape rootstocks at regular time, and making detailed records.

Preferably, the decomposed waste shiitake mushroom sticks, the decomposed cow dung, 1 part of perlite and the vermiculite in the first step are crushed by a crushing device and then are uniformly stirred and mixed with garden soil, particle controlled release fertilizer and trace element fertilizer.

Preferably, the time for the timed irrigation in the fourth step is before the flowering, the initial swelling and one month before the maturation, and the fertilizer is potassium dihydrogen phosphate.

The irrigation equipment comprises a bottom plate, wherein a mounting seat is welded at the lower end of the bottom plate, wheels are arranged in the mounting seat, a mud scraper is sleeved on the outer side of each wheel, a spring is arranged on the outer side of the mud scraper, the tail end of the spring is in contact connection with the mounting seat, a support is welded at the upper end of the bottom plate, a stirring box is welded at the upper end of the support, a box cover is connected to the upper end of the stirring box through threads, a motor is fixedly mounted at the upper end of the box cover, a rotating shaft is arranged at the lower end of the motor, a rotating shaft is slidably sleeved in the box cover, a connecting sleeve is fixedly sleeved on the outer side of the lower end of the rotating shaft, a main shaft is welded at the lower end of the connecting sleeve, a stirring rod is welded on the outer side of the main shaft, a mounting, the inboard contact of agitator tank is connected with the doctor-bar, the welding of the lower extreme outside of main shaft has the flabellum, agitator tank lateral wall fixed mounting has the timer, there is the lower extreme of agitator tank through threaded connection, the upper end welding of lower extreme has the bracing piece, the welding of the upper end of bracing piece has the filter screen, the filter screen has been cup jointed in the inboard slip of lower extreme of agitator tank, the fixed drain pipe that has cup jointed of lower extreme of agitator tank, be provided with the solenoid valve on the drain pipe.

Preferably, the outside welding of mud scraper has the guide bar, the guide bar has been cup jointed in the mount pad slides, the outside of guide bar slides and has cup jointed the spring.

Preferably, the number of the installation bases is four, two guide rods are sleeved in each installation base in a sliding mode, and the two guide rods are symmetrically distributed at two ends of each installation base.

Preferably, the upper end of the box cover is fixedly sleeved with a feed hopper, and the upper end of the feed hopper is connected with a hopper cover through threads.

Preferably, a ventilation pipe is fixedly sleeved in the box cover, and a filter cartridge is arranged at the right end of the ventilation pipe.

Preferably, the side wall of the connecting sleeve is sleeved with a locking screw through threads, and the side wall of the rotating shaft is sleeved with the locking screw in a sliding manner.

Preferably, the installation pole has four, every three puddlers, four are all welded to the side of installation pole the installation pole is the annular array and passes through the puddler welding in the outside of main shaft.

Preferably, the lower end of the liquid outlet pipe is fixedly sleeved with a shunt pipe, and a spray head is arranged on the shunt pipe.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses when utilizing irrigation equipment to irrigate the grape root, through periodic watering to at the watering in-process, through control irrigation cycle and fertilization volume, through observing the grape root growth condition, contrast watering data confirms the fertilization volume that is most suitable grape root, promote the cultivation and the growth of grape root, acquire higher economic benefits.

2. The utility model discloses an connect the scraper at the wheel overcoat, the scraper outside sets up the spring, presses the scraper on the wheel through the spring, when the relative scraper of wheel removed, makes when wheel surface adhesion earth the scraper can shovel the earth on the wheel through the scraper for the device is more laborsaving at the removal in-process.

3. The utility model discloses a set up the lower extreme cover at the agitator tank lower extreme, set up the welding bracing piece on the lower extreme cover and support the filter screen, when the drain pipe goes out liquid, in liquid in the agitator tank passed through the filter screen and filtered the entering drain pipe, large granule thing stayed in the filter screen upper end, caused the shower nozzle to block up in having avoided the particulate matter to get into the shower nozzle, simultaneously owing to set up the flabellum at the main shaft lower extreme, the flabellum rotates and clears away the particulate matter on the filter screen, avoids the filter screen to be blockked.

4. The utility model discloses an at the terminal welding installation pole of puddler, installation pole outside installation doctor-bar, when the main shaft rotated, the puddler when stirring to the liquid manure mixture, drove the installation pole and rotated, drove the doctor-bar and cut the agitator tank inner wall to remove and rub, avoided fertilizer to adhere to at the agitator tank inner wall, caused the agitator tank inner wall fertilizer to condense.

Drawings

FIG. 1 is a schematic view of the fertilizer-water coupled irrigation apparatus of the present invention under the condition of root-limited grape cultivation;

FIG. 2 is an enlarged view of the point A of FIG. 1 according to the present invention;

fig. 3 is a bottom view of the mounting base of fig. 1 according to the present invention;

figure 4 is a top view of the mounting bar of figure 1 in accordance with the present invention;

FIG. 5 is an enlarged view of the point B of FIG. 1 according to the present invention;

fig. 6 is a top view of the present invention shown in fig. 1.

In the figure: 1. a base plate; 2. a mounting seat; 3. a wheel; 4. a mud scraper; 41. a spring; 5. a guide bar; 6. a support; 7. a stirring box; 8. a box cover; 9. a feed hopper; 10. a bucket cover; 11. a ventilation tube; 12. a filter cartridge; 13. a motor; 14. a rotating shaft; 15. connecting sleeves; 16. locking the screw; 17. a main shaft; 18. a stirring rod; 19. mounting a rod; 20. scraping a blade; 21. a fan blade; 22. a timer; 23. a lower end cover; 24. a support bar; 25. a filter screen; 26. a liquid outlet pipe; 27. an electromagnetic valve; 28. a shunt tube; 29. and (4) a spray head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

a fertilizer and water coupling method under the condition of grape root-limiting cultivation is characterized by comprising the following specific steps:

Fourthly, irrigating the grapery at regular time by utilizing irrigation equipment coupled with fertilizer and water in a water-fertilizer ratio of 10: 1, irrigating 5L each time, wetting root soil by micro-sprinkling irrigation, checking and recording the growth condition of grape rootstocks at regular time, and making detailed records.

And in the first step, the decomposed waste shiitake mushroom sticks, the decomposed cow dung, 1 part of perlite and the vermiculite are crushed by a crushing device and then are uniformly stirred and mixed with garden soil, particle controlled release fertilizer and trace element fertilizer.

The timing irrigation time in the fourth step is before blooming, at the initial stage of fruit swelling and one month before ripening, and the fertilizer is potassium dihydrogen phosphate.

Referring to fig. 1, 2, 3 and 6, an irrigation device for coupling fertilizer and water under the condition of grape root limiting cultivation comprises a bottom plate 1, wherein a mounting seat 2 is welded at the lower end of the bottom plate 1, a wheel 3 is arranged in the mounting seat 2, a mud scraper 4 is sleeved on the outer side of the wheel 3, the mud scraper 4 is used for scraping and rubbing soil attached to the wheel 3 when the device moves, so that the difficulty in moving the device due to excessive soil attached to the wheel 3 is avoided, a spring 41 is arranged on the outer side of the mud scraper 4, the spring 41 is used for pressing the mud scraper 4 on the wheel 3 and is attached to the outer surface of the wheel 3, so that the soil attached to the wheel 3 is scraped cleanly and thoroughly, the mounting seat 2 is connected at the tail end of the spring 41 in a contact manner, a support 6 is welded at the upper end of the bottom plate 1, a stirring box 7 is welded at the upper end of the support 6 and used for processing and mixing coupling raw materials, a box cover 8, the box cover 8 is used for sealing the stirring box 7, the motor 13 with the model number of YE 2180L-4 is fixedly installed at the upper end of the box cover 8, the box cover belongs to the prior art and is provided with an external plug, the lower end of the motor 13 is provided with a rotating shaft 14, the rotating shaft 14 is slidably sleeved in the box cover 8, the outer side of the lower end of the rotating shaft 14 is fixedly sleeved with a connecting sleeve 15, the connecting sleeve 15 is used for connecting the rotating shaft 14 and a main shaft 17, so that the rotating shaft 14 can drive the main shaft 17 to rotate, the lower end of the connecting sleeve 15 is welded with the main shaft 17, the outer side of the main shaft 17 is welded with a stirring rod 18, the tail end of the stirring rod 18 is welded with a mounting rod 19, a scraping blade 20 is fixedly clamped in the mounting rod 19, the scraping blade 20 is made of rubber, the scraping blade 20 is prevented from damaging the inner wall of the stirring box 7 when, the lower extreme of agitator tank 7 has lower extreme cover 23 through threaded connection, the upper end welding of lower extreme cover 23 has bracing piece 24, the upper end welding of bracing piece 24 has filter screen 25, a residue for in the agitator tank 7 filters, guarantee that drain pipe 26 can not block up, the inboard slip of lower extreme of agitator tank 7 has cup jointed filter screen 25, the fixed cover of lower extreme of agitator tank 7 has connect drain pipe 26, be provided with solenoid valve 27 on the drain pipe 26, solenoid valve 27 is used for going out with timer 22 cooperation control drain pipe 26.

Referring to fig. 2 and 3, a guide rod 5 is welded on the outer side of the mud scraper 4, the guide rod 5 is slidably sleeved in the mounting seat 2, and a spring 41 is slidably sleeved on the outer side of the guide rod 5. The spring 41 is limited by arranging the guide rod 5, and the spring 41 is prevented from falling off.

Referring to fig. 2 and 3, four installation bases 2 are provided, two guide rods 5 are slidably sleeved in each installation base 2, and the two guide rods 5 are symmetrically distributed at two ends of the installation base 2. Two mud scrapers 4 can be fixed by arranging two guide rods 5, so that the wheels 3 can scrape mud when moving back and forth.

Referring to fig. 1, a feeding hopper 9 is fixedly sleeved at the upper end of the box cover 8, and a hopper cover 10 is connected to the upper end of the feeding hopper 9 through threads. Water and manure can be fed into the mixing box 7 through the feed hopper 9, and a hopper cover 10 is provided to close the feed hopper 9.

Referring to fig. 1, a ventilation pipe 11 is fixedly sleeved in the case cover 8, and a filter cartridge 12 is disposed at the right end of the ventilation pipe 11. The air exchange tube 11 is used for exchanging air for the stirring box 7, and an activated carbon bag is arranged in the filter cylinder 12 and used for absorbing pungent smell released during stirring of the fertilizer.

Referring to fig. 5, the side wall of the connection sleeve 15 is sleeved with a locking screw 16 through a thread, and the side wall of the rotation shaft 14 is slidably sleeved with the locking screw 16. The locking screw 16 is used to fix the connecting sleeve 15 on the rotating shaft 14, so that the rotating shaft 14 can rotate to drive the connecting sleeve 15 to rotate.

Referring to fig. 1 and 4, four mounting rods 19 are provided, three stirring rods 18 are welded to the side surface of each mounting rod 19, and the four mounting rods 19 are welded to the outer side of the main shaft 17 through the stirring rods 18 in an annular array. The inner wall of the stirring box 7 is cleaned more cleanly by arranging a plurality of mounting rods 19.

Referring to fig. 2, a shunt tube 28 is fixedly sleeved at the lower end of the liquid outlet tube 26, and a spray head 29 is arranged on the shunt tube 28. Through the shunt pipe 28, a plurality of spray heads 29 can be installed, and more grape roots can be irrigated at one time.

When the irrigation equipment coupled with fertilizer and water works under the condition of root limiting cultivation of grapes, water and fertilizer are put into a stirring box 7 in proportion, the time is set through a timer 22 to control the motor 13 to start and the electromagnetic valve 27 to start, the motor 13 starts the rotating shaft 14 to rotate, the rotating shaft 14 rotates to drive the connecting sleeve 15 to rotate, the connecting sleeve 15 rotates to drive the main shaft 17 to rotate, the main shaft 17 rotates to drive the stirring rod 18 to rotate, the stirring rod 18 rotates to drive the mounting rod 19 to move, the mounting rod 19 moves to drive the scraping blade 20 to scrape the inner wall of the stirring box 7, so that the fertilizer is prevented from adhering to the inner wall of the stirring box 7 and causing the fertilizer to be condensed on the inner wall of the stirring box 7, meanwhile, the electromagnetic valve 27 starts, the liquid outlet pipe 26 is opened by the electromagnetic valve 27, the water and fertilizer mixture in the stirring box 7 enters the liquid outlet pipe 26 through the filter screen 25, large particles, meanwhile, the fan blade 21 is arranged at the lower end of the main shaft 17, the main shaft 14 rotates to drive the fan blade 21 to rotate, the fan blade 21 rotates to clear particulate matters on the filter screen 25, the filter screen 25 is prevented from being blocked, the filtering efficiency is influenced, when the device moves, the wheel 3 rolls on the ground, the spring 41 acts on the outer surface of the wheel 3 to press the mud scraping plate 4, the mud scraping plate 4 is attached to the surface of the wheel 3, when the wheel 3 rotates, mud attached to the surface of the wheel 3 is scraped and rubbed by the mud scraping plate 4, the mud scraping plate 4 enables the mud to be adhered to the surface of the wheel 3, the mud on the wheel 3 can be shoveled, and the device is more labor.

Example 2:

Fourthly, irrigating the grapery at regular time by utilizing irrigation equipment coupled with fertilizer and water in a water-fertilizer ratio of 10: 1, irrigating 6L each time, wetting root soil by micro-sprinkling irrigation, checking and recording the growth condition of grape rootstocks at regular time, and making detailed records.

Example 3:

Fourthly, irrigating the grapery at regular time by utilizing irrigation equipment coupled with fertilizer and water in a water-fertilizer ratio of 10: 1, irrigating 7L each time, wetting root soil by micro-sprinkling irrigation, checking and recording the growth condition of grape rootstocks at regular time, and making detailed records.

When the irrigation equipment coupled with fertilizer and water works under the condition of root limiting cultivation of grapes, water and fertilizer are put into a stirring box 7 in proportion, the time is set through a timer 22 to control the motor 13 to start and the electromagnetic valve 27 to start, the motor 13 starts the rotating shaft 14 to rotate, the rotating shaft 14 rotates to drive the connecting sleeve 15 to rotate, the connecting sleeve 15 rotates to drive the main shaft 17 to rotate, the main shaft 17 rotates to drive the stirring rod 18 to rotate, the stirring rod 18 rotates to drive the mounting rod 19 to move, the mounting rod 19 moves to drive the scraping blade 20 to scrape the inner wall of the stirring box 7, so that the fertilizer is prevented from adhering to the inner wall of the stirring box 7 and causing the fertilizer to be condensed on the inner wall of the stirring box 7, meanwhile, the electromagnetic valve 27 starts, the liquid outlet pipe 26 is opened by the electromagnetic valve 27, the water and fertilizer mixture in the stirring box 7 enters the liquid outlet pipe 26 through the filter screen 25, large particles, meanwhile, as the fan blade 21 is arranged at the lower end of the main shaft 17, the main shaft 14 rotates to drive the fan blade 21 to rotate, the fan blade 21 rotates to remove particles on the filter screen 25, and the filter screen 25 is prevented from being blocked, so that the filtering efficiency is influenced, when the device moves, the moving mode drives the driving pulley to rotate through the servo motor, the driving pulley drives the driven pulley to rotate through the belt, so as to drive the wheel to move, the above mentioned structure is not shown in the figure, and can be controlled through an external controller, the control mode belongs to the public general knowledge of technicians in the field, and is not described herein, meanwhile, a storage battery can be additionally arranged on the device to supply power to the servo motor, the wheel 3 rolls on the ground, the spring 41 acts to press the mud scraping plate 4 on the outer surface of the wheel 3 and is attached to the surface of the wheel 3, when the wheel 3 rotates, the mud attached to the surface of the, the mud scraper 4 can remove the soil on the wheel 3 when the soil is adhered on the surface of the wheel 3, so that the device is more labor-saving in the moving process.

Through observing the recorded data in the embodiments 1-3, the grape root can be irrigated by the irrigation equipment, through periodic irrigation, and in the irrigation process, through controlling the irrigation period and the fertilizing amount, through observing the growth condition of the grape root, the most suitable fertilizing amount of the grape root is determined by comparing the irrigation data, the cultivation and the growth of the grape root are facilitated, and higher economic benefit is obtained.

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 irrigation equipment comprises a bottom plate (1) and is characterized in that a mounting seat (2) is welded at the lower end of the bottom plate (1), wheels (3) are arranged in the mounting seat (2), a mud scraper (4) is sleeved on the outer side of each wheel (3), a spring (41) is arranged on the outer side of each mud scraper (4), the tail end of each spring (41) is connected with the mounting seat (2) in a contact manner, a support (6) is welded at the upper end of the bottom plate (1), a stirring box (7) is welded at the upper end of each support (6), a box cover (8) is connected at the upper end of each stirring box (7) through threads, a motor (13) is fixedly arranged at the upper end of each box cover (8), a rotating shaft (14) is arranged at the lower end of each motor (13), and a rotating shaft (14) is sleeved in each box cover (8) in a sliding, the connecting sleeve (15) is fixedly sleeved on the outer side of the lower end of the rotating shaft (14), the main shaft (17) is welded at the lower end of the connecting sleeve (15), the stirring rod (18) is welded at the outer side of the main shaft (17), the mounting rod (19) is welded at the tail end of the stirring rod (18), the scraping blade (20) is fixedly clamped in the mounting rod (19), the scraping blade (20) is connected to the inner side of the stirring box (7) in a contact mode, the fan blades (21) are welded at the outer side of the lower end of the main shaft (17), the timer (22) is fixedly installed on the side wall of the stirring box (7), the lower end of the stirring box (7) is connected with the lower end cover (23) through threads, the supporting rod (24) is welded at the upper end of the lower end cover (23), the filtering net (25) is welded at the upper, the lower end of the stirring box (7) is fixedly sleeved with a liquid outlet pipe (26), and an electromagnetic valve (27) is arranged on the liquid outlet pipe (26).

2. The irrigation equipment coupled with fertilizer and water under the condition of grape root limiting cultivation according to claim 1, wherein a guide rod (5) is welded on the outer side of the mud scraper (4), the guide rod (5) is sleeved in the mounting seat (2) in a sliding mode, and a spring (41) is sleeved on the outer side of the guide rod (5) in a sliding mode.

3. The irrigation equipment coupled with fertilizer and water under the condition of grape root limiting cultivation according to claim 1, wherein the number of the installation bases (2) is four, two guide rods (5) are sleeved in each installation base (2) in a sliding mode, and the two guide rods (5) are symmetrically distributed at two ends of each installation base (2).

4. The irrigation equipment coupled with fertilizer and water under the condition of grape root-limiting cultivation as claimed in claim 1, wherein the upper end of the box cover (8) is fixedly sleeved with a feed hopper (9), and the upper end of the feed hopper (9) is connected with a hopper cover (10) through threads.

5. The irrigation equipment coupled with fertilizer and water under the condition of grape root-limiting cultivation according to claim 1, wherein an air exchange pipe (11) is fixedly sleeved in the box cover (8), and a filter cartridge (12) is arranged at the right end of the air exchange pipe (11).

6. The irrigation equipment coupled with fertilizer and water under the condition of grape root-limiting cultivation according to claim 1, wherein the side wall of the connecting sleeve (15) is sleeved with a locking screw (16) through threads, and the side wall of the rotating shaft (14) is sleeved with the locking screw (16) in a sliding manner.

7. The irrigation equipment for coupling the fertilizer and the water under the condition of the grape root limiting cultivation according to claim 1, wherein the number of the mounting rods (19) is four, three stirring rods (18) are welded on the side surface of each mounting rod (19), and the four mounting rods (19) are welded on the outer side of the main shaft (17) in an annular array through the stirring rods (18).

8. The apparatus for irrigating coupled fertilizer and water under the condition of grape root-limiting cultivation according to claim 1, wherein a shunt pipe (28) is fixedly sleeved at the lower end of the liquid outlet pipe (26), and a spray head (29) is arranged on the shunt pipe (28).