CN111771686A

CN111771686A - Extensible irrigation equipment

Info

Publication number: CN111771686A
Application number: CN202010809750.9A
Authority: CN
Inventors: 张金新; 王华辉
Original assignee: Hui'an County Pinchuang Industrial Design Co ltd
Current assignee: Hui'an County Pinchuang Industrial Design Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2020-10-16

Abstract

The invention relates to the field of agricultural machinery, in particular to extensible irrigation equipment. The irrigation area can be changed, and the working efficiency is improved. Including expanded spray tube assembly, shower nozzle assembly, piston pump assembly, initial condition spray tube one with spray tube two as description figure 1 shows, pile up the setting, irrigate by the watering through the stack of state spray tube one and two superpositions of spray tube for the volume of disposable watering increases, conveniently improves the efficiency of irrigating. The spray pipe I, the spray pipe II and the hinged connecting rod are fixed through the fastening bolt A and the clamping plate A between the spray pipe I and the hinged connecting rod, so that the effective length of irrigation between the spray pipe I and the spray pipe II and between the hinged connecting rods is increased, and the irrigation area is conveniently expanded; along upper portion spray tube sliding adjustment sleeve pipe, driving the connecting rod motion through adjusting the sleeve pipe, sliding in the inner of lower part spray tube through the connecting rod drive closure plate for the area that the closure plate sheltered from rivers changes, makes the water yield that sprays through the small opening change, conveniently changes the speed of irrigating.

Description

Extensible irrigation equipment

Technical Field

The invention relates to the field of agricultural machinery, in particular to extensible irrigation equipment.

Background

For example, the farmland irrigation equipment with the patent number of CN201920830317.6 convenient to move comprises a base, wherein a box body is arranged on the upper surface of the base, and four universal wheels are uniformly distributed on the lower surface of the base; the left side surface of the base is fixedly connected with a handle; the lower surface of box inner wall is provided with the water pump, and the right flank of water pump is provided with flexible water pipe, and flexible water pipe joint is in the box right flank, and flexible water pipe's right flank is provided with the shower nozzle, the upper surface of shower nozzle and the output shaft fixed connection of motor, the motor is provided with the motor that is just reversing, but this technical scheme's shortcoming is that the way improves irrigation area, and then work efficiency is low.

Disclosure of Invention

The invention aims to provide extensible irrigation equipment which can change the irrigation area and further improve the working efficiency.

The purpose of the invention is realized by the following technical scheme:

the utility model provides an extensible irrigation equipment, includes expanded spray tube assembly, shower nozzle assembly, piston pump assembly, expandable spray tube assembly is connected with the shower nozzle assembly, and expandable spray tube assembly is connected with the piston pump assembly.

As a further optimization of the technical scheme, the invention provides expandable irrigation equipment, which comprises a first spray pipe, a first connecting pipe, a second spray pipe, a hinged connecting rod, a filtering sleeve, a first filtering hole, a first middle-end sliding column, a first filtering plate, a second filtering plate, a first middle-end pushing spring, a second filtering hole and a third filtering hole, wherein the first connecting pipe is fixedly connected and communicated with the first spray pipe, the second connecting pipe is fixedly connected and communicated with the first spray pipe, the first connecting pipe is fixedly connected and communicated with the second spray pipe, the first spray pipe is hinged with the second spray pipe through the hinged connecting rod, the filtering sleeve is fixedly connected with the second spray pipe, the first filtering hole is arranged on the filtering sleeve, the middle-end sliding column is fixedly connected with the filtering sleeve, the first filtering plate and the second filtering plate are both connected with the middle-end sliding column in a sliding manner, the first middle-end pushing spring and the second middle-end pushing spring are both connected with, and the middle end push spring I is arranged and fixedly connected between the filter sleeve and the second filter plate, the middle end push spring II is arranged and fixedly connected between the second filter plate and the first filter plate, and the second filter hole and the third filter hole are respectively arranged on the first filter plate and the second filter plate.

As a further optimization of the technical scheme, according to the expandable irrigation equipment, the first connecting pipe and the second connecting pipe are both made of elastic rubber.

As further optimization of the technical scheme, the diameter of the first filtering hole, the third filtering hole and the second filtering hole is sequentially increased.

As further optimization of the technical scheme, the expandable irrigation equipment has the advantages that the initial positions of the middle end push spring I and the middle end push spring II are not affected by external force.

As a further optimization of the technical scheme, the expandable irrigation equipment is characterized in that a fastening bolt A and a clamping plate A are arranged among the first spray pipe, the second spray pipe and the hinged connecting rod.

As a further optimization of the technical scheme, the invention provides expandable irrigation equipment, wherein a spray head assembly comprises a lower spray pipe, an upper spray pipe, a rectangular limiting groove, an annular groove, an adjusting sleeve, a connecting rod, a closing plate, a leakage hole, an inner clamping rod push spring, a lower sliding column and a sliding column push spring, the lower spray pipe is fixedly connected and communicated with the upper spray pipe, the rectangular limiting groove is formed in the upper spray pipe, the annular grooves are formed in the plurality of annular grooves, the adjusting sleeve is slidably connected with the upper spray pipe, the connecting rod is hinged with the adjusting sleeve, the connecting rod is hinged with the closing plate, the lower sliding column is fixedly connected with the closing plate, the lower sliding column is slidably connected with the lower spray pipe, the sliding column push spring is sleeved with the lower sliding column, the sliding column push spring is arranged between the closing plate and the lower spray pipe, the, the nozzle assembly is provided with a plurality of nozzle assemblies, one part of the nozzle assemblies is fixedly connected and communicated with the first nozzle assembly, and the other part of the nozzle assemblies is fixedly connected and communicated with the second nozzle assembly.

As a further optimization of the technical scheme, the invention provides expandable irrigation equipment, wherein the piston pump assembly comprises a piston sleeve, a piston rod connecting rod, a driving shaft, a rectangular sliding block, a rotating rod, an input motor, a piston plate, a sealing cover, an inner annular groove, an inner cylindrical clamping rod, a cylindrical clamping rod push spring, a spherical clamping rod push spring and a spherical clamping groove, the piston rod is hinged with the piston rod connecting rod, the driving shaft is rotatably connected with the rectangular sliding block, the rectangular sliding block is slidably connected with the rotating rod, the input motor is fixedly connected with the rotating rod, the piston plate is slidably connected with the piston sleeve, the piston rod is clamped with the piston plate through the inner cylindrical clamping rod, the inner cylindrical clamping rod is matched and connected with the inner annular groove, the inner annular groove is formed in the piston plate, the inner cylindrical clamping rod is slidably connected with the piston rod, the spherical clamping rod is connected with the rectangular sliding block in a sliding mode, the spherical clamping rod push spring is arranged between the spherical clamping rod and the rectangular sliding block, the spherical clamping rod is connected with the spherical clamping groove in a matched mode, the spherical clamping groove is arranged on the rotating rod, and the second spray pipe is fixedly connected with and communicated with the piston sleeve.

As a further optimization of the technical solution, the expandable irrigation device of the present invention, wherein the piston sleeve is provided with a mating water tank a, and a one-way valve a is arranged between the mating water tank a and the piston sleeve.

As a further optimization of the technical scheme, the expandable irrigation equipment provided by the invention is characterized in that the lower end of the piston sleeve is provided with a walking device.

The expandable irrigation equipment has the beneficial effects that:

1. the initial state spray pipe I and the spray pipe II are stacked as shown in the attached drawing 1 of the specification, and then watering irrigation is carried out through superposition of the state spray pipe I and the spray pipe II, so that the amount of disposable water is increased, and further the irrigation efficiency is conveniently improved.

2. The spray pipe I, the spray pipe II and the fastening bolt A and the clamping plate A between the hinged connecting rods are fixed, so that the effective length of irrigation between the spray pipe I, the spray pipe II and the hinged connecting rods is increased, and the irrigation area is conveniently expanded.

3. The water yield that can adjust through the small opening and spray according to actual conditions, along upper portion spray tube slide adjusting sleeve pipe, and then drive the connecting rod motion through adjusting sleeve pipe, and then drive the closure plate through the connecting rod and slide in the inner of lower part spray tube for the area that the closure plate sheltered from rivers changes, and then makes the water yield that sprays through the small opening change, and then conveniently changes the speed of irrigating.

4. The rectangular sliding block slides along the rotating rod, so that the use position of the rectangular sliding block in the rotating rod is changed, the movement range of the driving shaft is changed, meanwhile, the reciprocating movement distance of the piston plate in the piston sleeve is changed due to the connection relation, the water quantity flowing into the second spraying pipe through the piston sleeve is changed in one stroke, and the irrigation speed is adjusted.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a first general structural diagram of the present invention;

FIG. 2 is a second overall structural schematic of the present invention;

FIG. 3 is a first schematic view of the expandable nozzle assembly of the present invention;

FIG. 4 is a second schematic structural view of the expandable nozzle assembly of the present invention;

FIG. 5 is a third schematic diagram of the expandable nozzle assembly of the present invention;

FIG. 6 is a first schematic view of the showerhead assembly of the present invention;

FIG. 7 is a schematic structural diagram of a showerhead assembly of the present invention;

FIG. 8 is a third schematic structural view of a showerhead assembly of the present invention;

FIG. 9 is a fourth schematic structural view of the showerhead assembly of the present invention;

FIG. 10 is a first schematic view of the piston-pump assembly of the present invention;

FIG. 11 is a second schematic view of the piston-pump assembly of the present invention;

FIG. 12 is a third schematic view of the piston-pump assembly of the present invention;

fig. 13 is a fourth schematic view of the piston-pump assembly of the present invention.

In the figure: an expandable spray tube assembly 1; 1-1 of a spray pipe I; a first connecting pipe 1-2; a second connecting pipe 1-3; a second spray pipe 1-4; hinged connecting rods 1-5; 1-6 parts of a filter sleeve; 1-7 of a first filter hole; 1-8 of middle sliding column; 1-9 parts of a filter plate I; 1-10 parts of a second filter plate; a middle end push spring 1-11; a middle end push spring II 1-12; filtering holes II are 1 to 13; filter holes III are 1 to 14; a nozzle assembly 2; a lower spray pipe 2-1; an upper spray pipe 2-2; 2-3 of a rectangular limiting groove; 2-4 of annular groove; 2-5 of an adjusting sleeve; 2-6 of a connecting rod; a closure panel 2-7; 2-8 parts of a bushing; 2-9 of a leak hole; 2-10 parts of inner end clamping rod; the inner end clamping rod pushes a spring 2-11; 2-12 of a lower end sliding column; 2-13 of a sliding column push spring; a piston-pump assembly 3; a piston sleeve 3-1; a piston rod 3-2; a piston rod connecting rod 3-3; a drive shaft 3-4; 3-5 of a rectangular sliding block; 3-6 of a rotating rod; inputting a motor 3-7; piston plates 3-8; 3-9 parts of a sealing cover; 3-10 annular grooves at the inner end; 3-11 parts of inner end cylindrical clamping rods; 3-12 parts of a cylindrical clamping rod push spring; 3-13 parts of a spherical clamping rod; 3-14 parts of a spherical clamping rod push spring; and 3-15 parts of spherical clamping grooves.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The fixed connection in the device is realized by fixing in modes of welding, thread fixing and the like, and different fixing modes are used in combination with different use environments; the rotary connection means that the bearing is arranged on the shaft in a drying mode, a spring retainer ring groove is formed in the shaft or the shaft hole, and the elastic retainer ring is clamped in the retainer ring groove to achieve axial fixation of the bearing and achieve rotation; the sliding connection refers to the connection through the sliding of the sliding block in the sliding groove or the guide rail, and the sliding groove or the guide rail is generally in a step shape, so that the sliding block is prevented from falling off in the sliding groove or the guide rail; the hinge joint is a movable connection mode on connecting parts such as a hinge, a pin shaft, a short shaft and the like; the required sealing positions are sealed by sealing rings or O-shaped rings.

The first embodiment is as follows:

the embodiment is described below with reference to fig. 1 to 13, and an expandable irrigation device includes an expandable nozzle assembly 1, a nozzle assembly 2, and a piston pump assembly 3, where the expandable nozzle assembly 1 is connected to the nozzle assembly 2, and the expandable nozzle assembly 1 is connected to the piston pump assembly 3.

The second embodiment is as follows:

the embodiment is described below with reference to fig. 1-13, and the embodiment further describes the first embodiment, where the expandable nozzle assembly 1 includes a nozzle 1-1, a connecting pipe 1-2, a connecting pipe two 1-3, a nozzle two 1-4, a hinged connecting rod 1-5, a filtering sleeve 1-6, a filtering hole 1-7, a middle sliding column 1-8, a filtering plate 1-9, a filtering plate two 1-10, a middle pushing spring 1-11, a middle pushing spring two 1-12, a filtering hole two 1-13, and a filtering hole three 1-14, the connecting pipe 1-2 is fixedly connected and communicated with the nozzle 1-1, the connecting pipe two 1-3 is fixedly connected and communicated with the nozzle 1-1, the connecting pipe one 1-2 is fixedly connected and communicated with the nozzle two 1-4, the connecting pipe II 1-3 is fixedly connected and communicated with the spray pipe II 1-4, the spray pipe I1-1 is hinged with the spray pipe II 1-4 through a hinged connecting rod 1-5, the filter sleeve 1-6 is fixedly connected with the spray pipe II 1-4, the filter hole I1-7 is arranged on the filter sleeve 1-6, the middle sliding column 1-8 is fixedly connected with the filter sleeve 1-6, the filter plate I1-9 and the filter plate II 1-10 are both connected with the middle sliding column 1-8 in a sliding way, the middle push spring I1-11 and the middle push spring II 1-12 are both connected with the middle sliding column 1-8 in a sleeved way, the middle push spring I1-11 is arranged and fixedly connected between the filter sleeve 1-6 and the filter plate II 1-10, the middle push spring II 1-12 is arranged and fixedly connected between the filter plate II 1-10 and the filter plate I1-9, the filter holes II 1-13 and the filter holes III 1-14 are respectively arranged on the filter plates I1-9 and the filter plates II 1-10;

the spray pipes I1-1 and the spray pipes II 1-4 in the initial state are stacked as shown in the attached figure 1 of the specification, and then the spray pipes I1-1 and the spray pipes II 1-4 in the state are superposed for watering irrigation, so that the amount of water sprayed at one time is increased, and the irrigation efficiency is further improved conveniently; meanwhile, the irrigation area can be expanded according to the actual situation, the first spray pipe 1-1 is pulled manually, the first spray pipe 1-1, the second spray pipe 1-4 and the hinged connecting rod 1-5 form a straight line, and the first spray pipe 1-1, the second spray pipe 1-4 and the hinged connecting rod 1-5 are fixed through the fastening bolt A and the clamping plate A, so that the effective length of irrigation among the first spray pipe 1-1, the second spray pipe 1-4 and the hinged connecting rod 1-5 is increased, and the irrigation area is conveniently expanded.

The third concrete implementation mode:

the first embodiment will be further described with reference to fig. 1 to 13, in which the first connecting pipe 1-2 and the second connecting pipe 1-3 are made of elastic rubber.

The fourth concrete implementation mode:

the present embodiment will be described with reference to fig. 1 to 13, and the present embodiment further describes the first embodiment in which the pore diameters of the first filter pores 1 to 7, the third filter pores 1 to 14, and the second filter pores 1 to 13 are sequentially increased.

The fifth concrete implementation mode:

the first embodiment will be further described with reference to fig. 1 to 13, in which the initial positions of the first and second middle end push springs 1 to 11 and 1 to 12 are not affected by external force.

The sixth specific implementation mode:

the first embodiment is further described with reference to fig. 1-13, and a fastening bolt a and a clamping plate a are arranged among the first spray pipe 1-1, the second spray pipe 1-4 and the hinged connecting rod 1-5.

The seventh embodiment:

the present embodiment is described below with reference to fig. 1-13, and the present embodiment further describes the first embodiment, where the spray head assembly 2 includes a lower spray pipe 2-1, an upper spray pipe 2-2, a rectangular limiting groove 2-3, an annular groove 2-4, an adjusting sleeve 2-5, a connecting rod 2-6, a closing plate 2-7, a leakage plate 2-8, a leakage hole 2-9, an inner end clamping rod 2-10, an inner end clamping rod push spring 2-11, a lower end sliding column 2-12, and a sliding column push spring 2-13, the lower spray pipe 2-1 is fixedly connected and communicated with the upper spray pipe 2-2, the rectangular limiting groove 2-3 is disposed on the upper spray pipe 2-2, the annular groove 2-4 is disposed on the upper spray pipe 2-2, and the annular grooves 2-4 are disposed in plural, an adjusting sleeve 2-5 is connected with an upper spray pipe 2-2 in a sliding way, a connecting rod 2-6 is connected with the adjusting sleeve 2-5 in a hinged way, the connecting rod 2-6 is connected with a closing plate 2-7 in a hinged way, a lower sliding column 2-12 is fixedly connected with the closing plate 2-7, the lower sliding column 2-12 is connected with a lower spray pipe 2-1 in a sliding way, a sliding column push spring 2-13 is connected with the lower sliding column 2-12 in a sleeved way, the sliding column push spring 2-13 is arranged between the closing plate 2-7 and the lower spray pipe 2-1, a leakage plate 2-8 is fixedly connected with the lower spray pipe 2-1, a leakage hole 2-9 is arranged on a leakage plate 2-8, an inner end clamping rod 2-10 is connected with the adjusting sleeve 2-5 in a sliding way, an inner end clamping rod push spring 2-11 is connected with an inner, the inner end clamping rod 2-10 is matched and connected with the annular groove 2-4, the spray head assembly 2 is provided with a plurality of spray heads, one part of the lower spray pipe 2-1 is fixedly connected and communicated with the spray pipe I1-1, and the other part of the lower spray pipe 2-1 is fixedly connected and communicated with the spray pipe II 1-4;

the water entering the first spray pipe 1-1 and the second spray pipe 1-4 flows into the upper spray pipe 2-2, further flows through the lower spray pipe 2-1, and flows out through the leakage holes 2-9 on the leakage plates 2-8, so that irrigation is realized; meanwhile, the water amount sprayed through the leakage holes 2-9 can be adjusted according to actual conditions, the adjusting sleeve 2-5 is slid along the upper spray pipe 2-2, the adjusting sleeve 2-5 drives the connecting rod 2-6 to move, and the connecting rod 2-6 drives the closing plate 2-7 to slide at the inner end of the lower spray pipe 2-1, so that the area of the closing plate 2-7 for shielding water flow is changed, the water amount sprayed through the leakage holes 2-9 is changed, and the irrigation speed is changed conveniently.

The specific implementation mode is eight:

the following describes the present embodiment with reference to fig. 1 to 13, and the present embodiment further describes the first embodiment, where the piston-pump assembly 3 includes a piston sleeve 3-1, a piston rod 3-2, a piston rod connecting rod 3-3, a driving shaft 3-4, a rectangular slider 3-5, a rotating rod 3-6, an input motor 3-7, a piston plate 3-8, a sealing cover 3-9, an inner end annular groove 3-10, an inner end cylindrical clamping rod 3-11, a cylindrical clamping rod push spring 3-12, a spherical clamping rod 3-13, a spherical clamping rod push spring 3-14, and a spherical clamping groove 3-15, the piston rod 3-2 is hinged to the piston rod connecting rod 3-3, the driving shaft 3-4 is rotatably connected to the rectangular slider 3-5, a rectangular slide block 3-5 is connected with a rotary rod 3-6 in a sliding way, an input motor 3-7 is fixedly connected with the rotary rod 3-6, a piston plate 3-8 is connected with a piston sleeve 3-1 in a sliding way, a piston rod 3-2 is connected with the piston plate 3-8 in a clamping way through an inner end cylindrical clamping rod 3-11, the inner end cylindrical clamping rod 3-11 is connected with an inner end annular groove 3-10 in a matching way, the inner end annular groove 3-10 is arranged on the piston plate 3-8, the inner end cylindrical clamping rod 3-11 is connected with the piston rod 3-2 in a sliding way, a cylindrical clamping rod push spring 3-12 is arranged between the inner end cylindrical clamping rod 3-11 and the piston rod 3-2, a spherical clamping rod 3-13 is connected with the rectangular slide block 3-5 in a sliding way, a spherical clamping rod push spring 3-14 is arranged between the spherical clamping rod, the spherical clamping rod 3-13 is connected with the spherical clamping groove 3-15 in a matching mode, the spherical clamping groove 3-15 is arranged on the rotating rod 3-6, and the spray pipe II 1-4 is fixedly connected and communicated with the piston sleeve 3-1.

The specific implementation method nine:

referring to fig. 1-13, the piston tube 3-1 is provided with a mating water tank a, and a check valve a is disposed between the mating water tank a and the piston tube 3-1.

The detailed implementation mode is ten:

the present embodiment will be described with reference to fig. 1 to 13, and the present embodiment further describes the first embodiment, in which the lower end of the piston tube 3-1 is provided with a traveling device.

The invention relates to extensible irrigation equipment, which has the working principle that:

when the device is used, the first spray pipe 1-1 and the second spray pipe 1-4 in the initial state are stacked as shown in the attached figure 1 of the specification, and then sprinkling irrigation is carried out by overlapping the first spray pipe 1-1 and the second spray pipe 1-4 in the state, so that the amount of one-time sprinkling is increased, and the irrigation efficiency is conveniently improved; meanwhile, the irrigation area can be expanded according to the actual situation, the first spray pipe 1-1 is pulled manually, so that the first spray pipe 1-1, the second spray pipe 1-4 and the hinged connecting rod 1-5 form a straight line, and the first spray pipe 1-1, the second spray pipe 1-4 and the hinged connecting rod 1-5 are fixed through the fastening bolt A and the clamping plate A between the first spray pipe 1-1, the second spray pipe 1-4 and the hinged connecting rod 1-5, so that the effective length of irrigation among the first spray pipe 1-1, the second spray pipe 1-4 and the hinged connecting rod 1-5 is increased, and the irrigation area; the water entering the first spray pipe 1-1 and the second spray pipe 1-4 flows into the upper spray pipe 2-2, further flows through the lower spray pipe 2-1, and flows out through the leakage holes 2-9 on the leakage plates 2-8, so that irrigation is realized; meanwhile, the amount of water sprayed through the leakage holes 2-9 can be adjusted according to actual conditions, the adjusting sleeve 2-5 slides along the upper spray pipe 2-2, the adjusting sleeve 2-5 drives the connecting rod 2-6 to move, and the connecting rod 2-6 drives the closing plate 2-7 to slide at the inner end of the lower spray pipe 2-1, so that the area of the closing plate 2-7 for shielding water flow is changed, the amount of water sprayed through the leakage holes 2-9 is changed, and the irrigation speed is conveniently changed; the input motor 3-7 is started, the input motor 3-7 drives the rotating rod 3-6 to rotate, the rotating rod 3-6 drives the driving shaft 3-4 to move through the rectangular sliding block 3-5, the piston rod connecting rod 3-3 is driven to move through the driving shaft 3-4, the piston rod 3-2 is driven to move through the piston rod connecting rod 3-3, the piston rod 3-2 drives the piston plate 3-8 to move through the inner end cylindrical clamping rod 3-11, the piston plate 3-8 slides in a reciprocating manner along the inner end of the piston sleeve 3-1 in the vertical direction, and water in a matched water tank A connected with the piston sleeve 3-1 flows into the piston sleeve 3-1 through the one-way valve A and then flows into the spray pipe II 1-4, further realizing irrigation, the one-way valve A can prevent water from flowing back into the matched water tank A when the piston sleeve 3-1 moves downwards; the amount of water discharged through the piston sleeve 3-1 at a time can be adjusted according to actual conditions, the rectangular sliding block 3-5 slides along the rotating rod 3-6, the using position of the rectangular sliding block 3-5 in the rotating rod 3-6 is changed, the moving range of the driving shaft 3-4 is changed, meanwhile, the connecting relation enables the reciprocating distance of the piston plate 3-8 in the piston sleeve 3-1 to be changed, the amount of water flowing into the spray pipe II 1-4 through the piston sleeve 3-1 in one stroke is changed, and the irrigation speed is adjusted.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.

Claims

1. The utility model provides an extensible irrigation equipment, includes expanded spray tube assembly (1), shower nozzle assembly (2), piston pump assembly (3), its characterized in that: the expandable spray pipe assembly (1) is connected with the spray head assembly (2), and the expandable spray pipe assembly (1) is connected with the piston pump assembly (3).

2. The expandable irrigation apparatus of claim 1, wherein: the expandable spray pipe assembly (1) comprises a spray pipe I (1-1), a connecting pipe I (1-2), a connecting pipe II (1-3), a spray pipe II (1-4), a hinged connecting rod (1-5), a filtering sleeve pipe (1-6), a filtering hole I (1-7), a middle-end sliding column (1-8), a filtering plate I (1-9), a filtering plate II (1-10), a middle-end pushing spring I (1-11), a middle-end pushing spring II (1-12), a filtering hole II (1-13) and a filtering hole III (1-14), wherein the connecting pipe I (1-2) is fixedly connected and communicated with the spray pipe I (1-1), the connecting pipe II (1-3) is fixedly connected and communicated with the spray pipe I (1-1), the connecting pipe I (1-2) is fixedly connected and communicated with the spray pipe II (1-4), the connecting pipe II (1-3) is fixedly connected and communicated with the spray pipe II (1-4), the spray pipe I (1-1) is hinged with the spray pipe II (1-4) through a hinged connecting rod (1-5), the filtering sleeve pipe (1-6) is fixedly connected with the spray pipe II (1-4), the filtering hole I (1-7) is arranged on the filtering sleeve pipe (1-6), the middle end sliding column (1-8) is fixedly connected with the filtering sleeve pipe (1-6), the filtering plate I (1-9) and the filtering plate II (1-10) are both in sliding connection with the middle end sliding column (1-8), the middle end push spring I (1-11) and the middle end push spring II (1-12) are both in sleeve connection with the middle end sliding column (1-8), and the middle end push spring I (1-11) is arranged and fixedly connected between the filtering sleeve pipe (1-6) and the filtering plate II (1-10), the middle end push spring II (1-12) is arranged and fixedly connected between the filter plate II (1-10) and the filter plate I (1-9), and the filter hole II (1-13) and the filter hole III (1-14) are respectively arranged on the filter plate I (1-9) and the filter plate II (1-10).

3. The expandable irrigation apparatus of claim 2, wherein: the first connecting pipe (1-2) and the second connecting pipe (1-3) are made of elastic rubber materials.

4. The expandable irrigation apparatus of claim 2, wherein: the aperture of the first filtering hole (1-7), the third filtering hole (1-14) and the second filtering hole (1-13) is increased in sequence.

5. The expandable irrigation apparatus of claim 2, wherein: the initial positions of the middle end push springs I (1-11) and the middle end push springs II (1-12) are not affected by external force.

6. The expandable irrigation apparatus of claim 2, wherein: and a fastening bolt A and a clamping plate A are arranged among the first spray pipe (1-1), the second spray pipe (1-4) and the hinged connecting rod (1-5).

7. The expandable irrigation apparatus of claim 1, wherein: the spray head assembly (2) comprises a lower spray pipe (2-1), an upper spray pipe (2-2), rectangular limiting grooves (2-3), annular grooves (2-4), adjusting sleeves (2-5), connecting rods (2-6), closing plates (2-7), leakage plates (2-8), leakage holes (2-9), inner end clamping rods (2-10), inner end clamping rod push springs (2-11), lower end sliding columns (2-12) and sliding column push springs (2-13), wherein the lower spray pipe (2-1) is fixedly connected and communicated with the upper spray pipe (2-2), the rectangular limiting grooves (2-3) are arranged on the upper spray pipe (2-2), the annular grooves (2-4) are arranged on the upper spray pipe (2-2), and the annular grooves (2-4) are arranged in a plurality, an adjusting sleeve (2-5) is connected with an upper spray pipe (2-2) in a sliding manner, a connecting rod (2-6) is connected with the adjusting sleeve (2-5) in a hinged manner, the connecting rod (2-6) is connected with a closing plate (2-7) in a hinged manner, a lower sliding column (2-12) is fixedly connected with the closing plate (2-7), a lower sliding column (2-12) is connected with a lower spray pipe (2-1) in a sliding manner, a sliding column push spring (2-13) is connected with the lower sliding column (2-12) in a sleeved manner, a sliding column push spring (2-13) is arranged between the closing plate (2-7) and the lower spray pipe (2-1), a leakage plate (2-8) is fixedly connected with the lower spray pipe (2-1), a leakage hole (2-9) is arranged on the leakage plate (2-8), an inner end clamping rod (2-10) is connected with the adjusting sleeve (2-5) in a sliding manner, the inner end clamping rod push spring (2-11) is connected with the inner end clamping rod (2-10) in a sleeved mode, the inner end clamping rod (2-10) is connected with the annular groove (2-4) in a matched mode, the spray head assembly (2) is provided with a plurality of parts, one part of the lower spray pipe (2-1) is fixedly connected and communicated with the first spray pipe (1-1), and the other part of the lower spray pipe (2-1) is fixedly connected and communicated with the second spray pipe (1-4).

8. The expandable irrigation apparatus of claim 1, wherein: the piston pump assembly (3) comprises a piston sleeve (3-1), a piston rod (3-2), a piston rod connecting rod (3-3), a driving shaft (3-4), a rectangular sliding block (3-5), a rotating rod (3-6), an input motor (3-7), a piston plate (3-8), a sealing cover (3-9), an inner end annular groove (3-10), an inner end cylindrical clamping rod (3-11), a cylindrical clamping rod push spring (3-12), a spherical clamping rod (3-13), a spherical clamping rod push spring (3-14) and a spherical clamping groove (3-15), wherein the piston rod (3-2) is hinged with the piston rod connecting rod (3-3), the driving shaft (3-4) is rotatably connected with the rectangular sliding block (3-5), a rectangular sliding block (3-5) is connected with a rotating rod (3-6) in a sliding way, an input motor (3-7) is fixedly connected with the rotating rod (3-6), a piston plate (3-8) is connected with a piston sleeve (3-1) in a sliding way, a piston rod (3-2) is connected with the piston plate (3-8) in a clamping way through an inner end cylindrical clamping rod (3-11), the inner end cylindrical clamping rod (3-11) is connected with an inner end annular groove (3-10) in a matching way, the inner end annular groove (3-10) is arranged on the piston plate (3-8), the inner end cylindrical clamping rod (3-11) is connected with the piston rod (3-2) in a sliding way, a cylindrical clamping rod push spring (3-12) is arranged between the inner end cylindrical clamping rod (3-11) and the piston rod (3-2), a spherical clamping rod (3-13) is connected with the rectangular sliding block (3-5) in, the spherical clamping rod push spring (3-14) is arranged between the spherical clamping rod (3-13) and the rectangular sliding block (3-5), the spherical clamping rod (3-13) is connected with the spherical clamping groove (3-15) in a matching mode, the spherical clamping groove (3-15) is arranged on the rotating rod (3-6), and the spray pipe II (1-4) is fixedly connected and communicated with the piston sleeve (3-1).

9. The expandable irrigation apparatus of claim 7, wherein: the piston sleeve (3-1) is provided with a matched water tank A, and a one-way valve A is arranged between the matched water tank A and the piston sleeve (3-1).

10. The expandable irrigation apparatus of claim 7, wherein: the lower end of the piston sleeve (3-1) is provided with a walking device.