CN217850166U - Under-film drip irrigation fertilizer applicator - Google Patents

Abstract

The utility model discloses a fertilizer injection unit is irritated to under membrane dripping, include: a mulching film laid above the planting area; a drip irrigation pipe adapted to receive incoming material and drip irrigation to the planting area; the quick plug is arranged at the output end of the drip irrigation pipe and can be inserted into the planting area through the mulching film; the quick connector includes the plug main part of interior drip irrigation chamber, and the liquid outlet of driping irrigation the pipe is located and drips irrigation the intracavity, and the bottom of plug main part still is provided with and is suitable for and drips irrigation the mouth of driping irrigation of chamber intercommunication to make the feed liquid in the pipe of driping irrigation can flow into the planting district under the plastic film through driping irrigation the mouth after entering into and drip irrigation the intracavity. By arranging the quick-connection connector, the feed liquid in the drip irrigation pipe can accurately flow into the planting area under the mulching film through the drip irrigation port, the accuracy of the drip irrigation position is ensured, and the film drip irrigation efficiency is improved; the drip irrigation pipe does not need to be inserted into soil, so that the problem of blockage of the drip irrigation pipe can be avoided; the quick-connection plug can penetrate through the mulching film to be inserted into the planting area, and quick laying and fixing operation of the drip irrigation pipe can be achieved.

Description

Under-film drip irrigation fertilizer applicator

Technical Field

The utility model relates to a tobacco planting technical field, concretely relates to fertilization device is irritated to drip under membrane.

Background

In the tobacco cultivation process, irrigation is usually needed to supplement water and nutrients necessary for tobacco growth, the irrigation mode of tobacco cultivation is more, and in order to improve the utilization efficiency of water resources, a drip irrigation mode is generally adopted. Water or nutrients are slowly and uniformly dripped into soil in a planting area through a drip irrigation pipe in a conventional drip irrigation mode, and the drip irrigation pipe has the effects of saving water and labor and increasing both production and income. However, since tobacco has the growth characteristics of being warm-loving and cold-intolerant, a mulching film is generally laid above a tobacco planting area to preserve heat and cold-tolerant of the tobacco, which undoubtedly increases the difficulty of drip irrigation.

In the existing tobacco drip irrigation technology, a drip irrigation pipe is generally laid in a planting area and then coated, and a water outlet of the drip irrigation pipe is easily blocked to influence the drip irrigation effect because the drip irrigation pipe is inserted into soil for a long time; if the drip irrigation pipe is laid after the film is covered, the operation of laying and fixing the drip irrigation facilities is difficult, so that the feed liquid is difficult to be delivered to the planting area under the film through the drip irrigation pipe, and the drip irrigation effect is poor and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the problem that the water outlet of the drip irrigation pipe is easy to be blocked because the drip irrigation pipe is inserted into the soil for a long time in the existing tobacco drip irrigation technology; or the drip irrigation pipe is laid after the film is coated, so that the drip irrigation facilities are difficult to lay and fix.

Therefore, the embodiment of the utility model provides a fertigation device drips under membrane is provided, this fertigation device drips under membrane includes:

a mulching film laid above the planting area;

a drip irrigation pipe adapted to receive incoming material and drip irrigation to the planting area;

the quick-plug connector is arranged at the output end of the drip irrigation pipe and can penetrate through the mulching film to be inserted into the planting area;

the quick-connection plug comprises a plug main body with a drip irrigation cavity, a liquid outlet of the drip irrigation pipe is located in the drip irrigation cavity, and a drip irrigation port which is suitable for being communicated with the drip irrigation cavity is further arranged at the bottom of the plug main body, so that liquid in the drip irrigation pipe can flow into a planting area under a mulching film through the drip irrigation port after entering the drip irrigation cavity.

Optionally, the plug main part is hourglass hopper-shaped, quick connector still includes:

the upper end opening of the insertion pipe is connected with the lower end opening of the funnel-shaped plug main body, and the lower end opening is a drip irrigation opening capable of being inserted into or pulled out of a mulching film.

Optionally, the lower end of the cannula is provided with an inclined cut.

Optionally, the plug body comprises:

the drip irrigation pipe comprises a funnel-shaped conical peripheral wall and a top wall connected to an upper port of the conical peripheral wall, wherein the top wall is provided with an installation through hole into which the drip irrigation pipe can extend;

and a sealing structure is arranged between the plug main body and the drip irrigation pipe and is suitable for sealing the gap between the drip irrigation pipe and the mounting through hole.

Optionally, the drip irrigation pipe and the plug main body are in sliding limit connection, and the sealing structure is an annular sealing element arranged on the inner periphery of the installation through hole.

Optionally, the quick-connect coupling further comprises:

the clamping ring is fixedly arranged on one side of the plug main body, and an opening is formed in one side, far away from the plug main body, of the clamping ring;

the under-film drip irrigation and fertilization device further comprises:

the operating rod can enter from the opening and is clamped and limited in the clamping ring, and the quick connector is suitable for being inserted into or pulled out of the planting area by pressing or lifting the operating rod.

Optionally, the drip irrigation pipe is provided with a plurality of drip irrigation pipes which are arranged linearly; the number of the quick connection and plug connectors is multiple, and the quick connection and plug connectors and the drip irrigation pipes are arranged in a one-to-one correspondence mode;

the control rod has a set extension length, is clamped and limited in the snap rings of the quick-plug connectors and is suitable for realizing the simultaneous insertion or extraction of the quick-plug connectors through the same control rod.

Optionally, the method further comprises:

the main material conveying pipe is suitable for conveying material liquid to the drip irrigation pipe;

the conveying branch pipes are connected to the conveying main pipe respectively, and the drip irrigation pipes are connected to the conveying branch pipes;

the supporting frame is arranged at a position close to the connecting position of the main material conveying pipe and the material conveying branch pipe and is suitable for supporting the main material conveying pipe;

and the supporting roller is rotatably arranged on the supporting frame and is suitable for rolling contact with the conveying main pipe.

Optionally, the rotation axis of the support roller is perpendicular to the extending direction of the main conveying pipe, and an accommodating groove suitable for accommodating and limiting the main conveying pipe is formed in the periphery of the middle of the support roller.

Optionally, the method further comprises:

the roller is rotatably arranged at the bottom of the support frame and is suitable for driving the support frame and the material conveying main pipe on the support frame to move along the axial direction of the material conveying main pipe.

The utility model discloses technical scheme has following advantage:

1. the drip irrigation and fertilization device under the plastic film can ensure the accuracy of a drip irrigation position and improve the efficiency of drip irrigation and fertilization treatment under the plastic film by arranging the quick-connection plug so that the feed liquid in the drip irrigation pipe can flow through the drip irrigation cavity of the quick-connection plug and accurately flow into the planting area under the plastic film through the drip irrigation port; the drip irrigation pipe and the quick plug are installed and limited, and the quick plug can be inserted into the planting area through the mulching film, so that the quick laying and fixing operation of the drip irrigation pipe can be realized; in addition, through setting up quick connector, need not directly to insert drip irrigation pipe in soil, can avoid drip irrigation pipe to take place the problem of jam.

2. The utility model discloses a to set up the intubate, can realize inserting or extracting the plastic film with the mouth of driping irrigation of intubate, can drip irrigation in inserting the plastic film with the intubate of quick connector when needs are driped irrigation to will extract from the plastic film fast connector after driping irrigation the end, can prevent that the mouth of driping irrigation of intubate from taking place to block up.

3. The utility model has the advantages that the lower end of the insertion pipe is arranged to be the inclined notch, the insertion pipe can be inserted into the planting area along the inclined notch, the insertion is convenient, time and labor are saved, and the condition that the drip irrigation opening of the insertion pipe is blocked can be effectively avoided; meanwhile, the liquid outlet area of the intubation drip irrigation port can be increased, and the drip irrigation efficiency is increased.

4. The utility model is provided with the snap ring and the operating rod, the operating rod is detachably and movably connected with the snap ring, and the quick connector can be quickly inserted into or pulled out of the planting area by pressing or lifting the operating rod, so as to carry out drip irrigation on the tobacco in the planting area in the following; the utility model discloses the same control rod simultaneous control of accessible a plurality of fast-plug plugs insert simultaneously or extract and plant the district, can improve drip irrigation the location efficiency of pipe, shorten and insert or extract the operating time of planting the district with the fast-plug, improve work efficiency.

5. The holding groove of the supporting roller can hold and limit the main conveying pipe, increase the supporting contact area of the main conveying pipe, and play a role in protecting the movement of the main conveying pipe so as to prevent abrasion between the main conveying pipe and the supporting frame; when the support frame is slightly disturbed, the main conveying pipe is not deviated, so that the under-film drip irrigation and fertilization device is not easily influenced by the outside, such as weather or small animals, and the drip irrigation efficiency is influenced by displacement.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a top view of a drip irrigation and fertilization device under a film provided in an embodiment of the present invention;

fig. 2 is a side view of the under-mulch fertigation device provided in an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of the under-film drip irrigation and fertilization device A shown in FIG. 2;

fig. 4 is an enlarged view of a portion of fig. 2.

Description of the reference numerals:

1. mulching films; 2. a drip irrigation pipe;

3. quickly connecting a plug; 31. a plug main body; 32. inserting a tube; 33. a snap ring;

4. a sealing structure; 5. a joystick; 61. a material conveying main pipe; 62. a material conveying branch pipe;

7. a support frame; 71. a support sleeve; 72. a stabilizing bracket; 73. a base plate;

81. a support roller; 82. and a roller.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Examples

As shown in fig. 1 to 4, the embodiment of the utility model provides a fertigation device drips under plastic film, and this fertigation device drips under plastic film includes plastic film 1, drip irrigation pipe 2 and quick connector. Specifically, a mulching film 1 is laid above a planting area; the drip irrigation pipe 2 is suitable for receiving incoming materials and carrying out drip irrigation on the planting area; the quick plug is arranged at the output end of the drip irrigation pipe 2 and can be inserted into the planting area through the mulching film 1; the quick-connection plug comprises a plug main body 31 with a drip irrigation cavity, a liquid outlet of the drip irrigation pipe 2 is located in the drip irrigation cavity, and a drip irrigation port suitable for being communicated with the drip irrigation cavity is further arranged at the bottom of the plug main body 31, so that liquid in the drip irrigation pipe 2 can flow into a planting area under the mulching film 1 through the drip irrigation port after entering the drip irrigation cavity.

The drip irrigation and fertilization device under the plastic film in the embodiment of the utility model has the advantages that by arranging the quick-connection plug, the feed liquid in the drip irrigation pipe 2 can flow through the drip irrigation cavity of the quick-connection plug 3 and accurately flow into the planting area under the plastic film 1 through the drip irrigation port, so that the accuracy of the drip irrigation position can be ensured, and the efficiency of the drip irrigation and fertilization treatment under the plastic film can be improved; the drip irrigation pipe 2 and the quick plug are installed and limited, and the quick plug 3 can be inserted into the planting area through the mulching film 1, so that the quick laying and fixing operation of the drip irrigation pipe 2 can be realized; in addition, through setting up quick connector, need not directly to insert drip irrigation pipe 2 in soil, can avoid drip irrigation pipe 2 to take place the problem of jam.

Optionally, the plug main body 31 is funnel-shaped, the quick-connect plug further includes an insertion tube 32, an upper end opening of the insertion tube 32 is connected with a lower end opening of the funnel-shaped plug main body 31, and the lower end opening is a drip irrigation opening through which the mulching film 1 can be inserted or pulled out.

Through will setting up the intubate 32, can realize inserting or extracting plastic film 1 with the mouth of driping irrigation of intubate 32, can insert the intubate 32 of quick connector when needs are driped irrigation and drip irrigation in plastic film 1 to extract quick connector 3 from plastic film 1 after driping irrigation the end, can prevent that the mouth of driping irrigation of intubate 32 from taking place to block up.

Optionally, the lower end of the cannula 32 is provided with an inclined cut. By arranging the lower end of the insertion pipe 32 as an inclined cut, the insertion pipe 32 can be inserted into the planting area along the inclined cut, the insertion is convenient, time and labor are saved, and the condition that the drip irrigation opening of the insertion pipe 32 is blocked can be effectively avoided; meanwhile, the liquid outlet area of the drip irrigation opening of the insertion pipe 32 can be increased, and the drip irrigation efficiency is increased.

Optionally, the plug main body 31 includes a funnel-shaped tapered peripheral wall and a top wall connected to an upper port of the tapered peripheral wall, and the top wall is provided with a mounting through hole into which the drip irrigation pipe 2 can extend; a sealing structure 4 is arranged between the plug main body 31 and the drip irrigation pipe 2 and is suitable for sealing the gap between the drip irrigation pipe 2 and the mounting through hole. Through setting up seal structure 4, can prevent to drip irrigation the feed liquid of intracavity and overflow and go out from the clearance between drip irrigation pipe 2 and the installation through-hole, avoid influencing the drip irrigation effect because of the weeping.

Optionally, the drip irrigation pipe 2 is connected with the plug main body 31 in a sliding and limiting manner, and the sealing structure 4 is an annular sealing element arranged on the inner periphery of the installation through hole. Optionally, the annular sealing element is an annular rubber ring or an annular plastic ring, and of course, the annular sealing element may be a sealing element made of other materials.

Optionally, the quick connector further includes a snap ring 33, the snap ring 33 is fixedly disposed on one side of the plug main body 31, and an opening is formed on one side of the snap ring 33 away from the plug main body 31; the under-film drip irrigation and fertilization device further comprises an operating rod 5, wherein the operating rod 5 can enter from the opening and is clamped and limited in the clamping ring 33, and the operating rod 5 is suitable for being pressed downwards or lifted upwards to insert or pull the quick-connection plug into or out of a planting area.

So set up, through setting up snap ring 33 and control lever 5, detachably swing joint between control lever 5 and the snap ring 33 to through pushing down or lifting control lever 5 on, can realize fast inserting the quick-connect plug and insert or extract planting district, so that follow-up driping irrigation the tobacco in planting district.

Optionally, the snap ring 33 is a horizontally arranged U-shaped structure, and the snap ring 33 and the operating lever 5 are detachably and movably connected through a snap fit.

Optionally, the drip irrigation pipe 2 is provided with a plurality of drip irrigation pipes 2, and the plurality of drip irrigation pipes 2 are arranged linearly; the number of the quick connection and plug connectors is multiple, and the quick connection and plug connectors and the drip irrigation pipes 2 are arranged in a one-to-one correspondence manner; the operating rod 5 has a set extension length, the operating rod 5 is clamped and limited in the snap rings 33 of the quick connectors, and the quick connectors can be simultaneously inserted or pulled out through the same operating rod 5.

By the arrangement, the quick-connection plugs 3 can be simultaneously controlled to be simultaneously inserted into or pulled out of the planting area through the same operating lever 5, the positioning efficiency of the drip irrigation pipe 2 can be improved, the working time for inserting or pulling out the quick-connection plugs 3 into or out of the planting area is shortened, and the working efficiency is improved.

Optionally, the under-film fertigation device further comprises a main delivery pipe 61, a branch delivery pipe 62, a support frame 7 and a support roller 81. Specifically, the main material conveying pipe 61 is suitable for conveying material liquid to the drip irrigation pipe 2; a plurality of material conveying branch pipes 62 are arranged, the material conveying branch pipes 62 are respectively connected to the material conveying main pipe 61, and the drip irrigation pipe 2 is connected to the material conveying branch pipes 62; the supporting frame 7 is arranged at a position close to the connecting position of the material conveying main pipe 61 and the material conveying branch pipes 62 and is suitable for supporting the material conveying main pipe 61; the supporting roller 81 is rotatably arranged on the supporting frame 7 and is suitable for rolling contact with the material conveying main pipe 61.

Optionally, the rotation axis of the supporting roller 81 is perpendicular to the extending direction of the main feeding pipe 61, and an accommodating groove suitable for accommodating and limiting the main feeding pipe 61 is formed in the middle periphery of the supporting roller 81.

With the arrangement, the accommodating groove of the supporting roller 81 can accommodate and limit the main delivery pipe 61, so that the supporting contact area of the main delivery pipe 61 is increased, the main delivery pipe 61 is protected from moving, and abrasion between the main delivery pipe 61 and the supporting frame 7 is prevented; when the support frame 7 is slightly disturbed, the main delivery pipe 61 is not deviated, so that the under-film drip irrigation and fertilization device is not easily influenced by the outside, such as weather or small animals, and the drip irrigation efficiency is influenced by displacement.

Optionally, the drip irrigation and fertilization device under membrane further comprises a roller 82, wherein the roller 82 is rotatably arranged at the bottom of the support frame 7 and is suitable for driving the support frame 7 and the material conveying main pipe 61 on the support frame 7 to move along the axial direction of the material conveying main pipe 61. By arranging the roller 82, the main conveying pipe 61 and the clinker branch pipe connected with the main conveying pipe 61 can be adjusted to proper positions so as to carry out drip irrigation on the tobacco in the planting area.

Optionally, the support frame 7 includes a support sleeve 71, the support sleeve 71 is sleeved on the outside of the main delivery pipe 61, a mounting hole is provided on the outer wall of the support sleeve 71, and the delivery branch pipe 62 passes through the mounting hole on the support sleeve 71 and is connected with the main delivery pipe 61.

Optionally, the supporting frame 7 further includes a stabilizing bracket 72, a cross section of the stabilizing bracket 72 is a trapezoid structure, the stabilizing bracket 72 and the supporting sleeve 71 are fixedly installed, a bottom plate 73 is installed at the bottom of the stabilizing bracket 72, and the roller 82 is installed on the bottom plate 73. By providing the stabilizing bracket 72 and the bottom plate 73, the supporting stability of the supporting sleeve 71 can be enhanced. Preferably, the rollers 82 are two and correspondingly spaced on both sides of the stabilizing bracket 72.

Optionally, one end of the material conveying branch pipe 62 is communicated with the middle part of the material conveying main pipe 61, and a plurality of material conveying branch pipes 62 are distributed at intervals along the length direction of the material conveying main pipe 61; along the length direction of the branch pipe 62, a plurality of drip irrigation pipes 2 are arranged on the branch pipe 62 at intervals. Preferably, the drip irrigation pipes 2 are uniformly and symmetrically arranged on both sides of the branch pipe 62, so that the drip irrigation efficiency can be improved. Preferably, the material conveying branch pipes 62 are arranged on one side of the material conveying main pipe 61 in parallel at intervals; preferably, the delivery branch pipe 62 is vertically arranged with the delivery main pipe 61.

Optionally, the operating principle of the under-film fertigation device in this embodiment is as follows:

laying a mulching film 1 above a planting area, and when using a drip irrigation and fertilization device under the mulching film for drip irrigation, firstly adjusting the positions of a main material conveying pipe 61 and a branch material conveying pipe 62 through a roller 82 to ensure that the branch material conveying pipe 62 is laid on the mulching film 1 of the planting area in parallel; then the operating lever 5 is clamped into the plurality of snap rings 33 which are linearly arranged, the plurality of snap rings 33 are driven to move downwards by pressing the operating lever 5 downwards, and therefore the quick-plug connector is driven to move downwards to penetrate through the mulching film 1 and be inserted into the planting area; taking the operating rod 5 out of the snap rings 33, and performing the operation on the rest of the plurality of linearly arranged snap rings 33 to ensure that the rest of the quick-plug connectors penetrate through the mulching film 1 and are inserted into the planting area; carrying out drip irrigation fertilization, wherein feed liquid is input from the main feed delivery pipe 61, is delivered to each drip irrigation pipe 2 on the main feed delivery pipe 61 through each feed delivery branch pipe 62, and is delivered into the planting area through a quick connector so as to carry out drip irrigation fertilization on the planting area; after the drip irrigation is finished, the quick-connection plug 3 is pulled out of the mulching film 1 by using the operating rod 5.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (10)

1. The utility model provides a fertilizer injection unit is irritated to under-film, its characterized in that includes:

a mulching film (1) laid above the planting area;

a drip irrigation pipe (2) adapted to receive incoming material and drip irrigation to the planting area;

the quick-plug connector is arranged at the output end of the drip irrigation pipe (2), and can penetrate through the mulching film (1) to be inserted into the planting area;

the quick-connection plug comprises a plug main body (31) with a drip irrigation cavity, a liquid outlet of the drip irrigation pipe (2) is located in the drip irrigation cavity, and a drip irrigation opening suitable for being communicated with the drip irrigation cavity is further formed in the bottom of the plug main body (31), so that liquid in the drip irrigation pipe (2) can flow into a planting area under the mulching film (1) through the drip irrigation opening after entering the drip irrigation cavity.

2. The under-mulch fertigation apparatus, according to claim 1, wherein the plug body (31) is funnel shaped, the quick-connect plug further comprising:

the upper end opening of the insertion pipe (32) is connected with the lower end opening of the funnel-shaped plug main body (31), and the lower end opening is a drip irrigation opening capable of being inserted into or pulled out of the mulching film (1).

3. The under-mulch fertigation device according to claim 2, wherein the lower end of the cannula (32) is provided with an inclined cut.

4. The under-mulch fertigation device according to any one of claims 1-3, wherein the plug body (31) comprises:

the drip irrigation pipe comprises a funnel-shaped conical peripheral wall and a top wall connected to an upper port of the conical peripheral wall, wherein the top wall is provided with an installation through hole into which the drip irrigation pipe (2) can extend;

and a sealing structure (4) is arranged between the plug main body (31) and the drip irrigation pipe (2) and is suitable for sealing the gap between the drip irrigation pipe (2) and the mounting through hole.

5. The under-film fertigation device according to claim 4, characterized in that the drip irrigation pipe (2) and the plug main body (31) are in sliding limit connection, and the sealing structure (4) is an annular sealing member arranged at the inner periphery of the installation through hole.

6. The under-film fertigation device according to any one of claims 1-3, wherein the quick-connect connector further comprises:

the clamping ring (33) is fixedly arranged on one side of the plug main body (31), and an opening is formed in one side, far away from the plug main body (31), of the clamping ring (33);

the under-film drip irrigation and fertilization device further comprises:

the operating rod (5) can enter from the opening and is clamped and limited in the clamping ring (33), and the quick connector can be inserted into or pulled out of the planting area by pressing or lifting the operating rod (5).

7. The under-film fertigation device according to claim 6, characterized in that said drip irrigation pipe (2) has a plurality, and said drip irrigation pipes (2) are arranged linearly; the number of the quick connection and plug connectors is multiple, and the quick connection and plug connectors and the drip irrigation pipes (2) are arranged in a one-to-one correspondence manner;

the operating rod (5) has a set extension length, the operating rod (5) is clamped and limited in the snap rings (33) of the quick-plug connectors, and the quick-plug connectors can be simultaneously inserted or pulled out through the same operating rod (5).

8. The under-mulch fertigation device according to any one of claims 1-3, further comprising:

the material conveying main pipe (61) is suitable for conveying material liquid to the drip irrigation pipe (2);

the conveying branch pipes (62) are multiple, the conveying branch pipes (62) are respectively connected to the conveying main pipe (61), and the drip irrigation pipe (2) is connected to the conveying branch pipes (62);

the supporting frame (7) is arranged at a position close to the connecting position of the material conveying main pipe (61) and the material conveying branch pipe (62) and is suitable for supporting the material conveying main pipe (61);

and the supporting roller (81) is rotatably arranged on the supporting frame (7) and is suitable for rolling contact with the material conveying main pipe (61).

9. The under-film fertigation device according to claim 8, wherein the rotation axis of the supporting roller (81) is perpendicular to the extension direction of the main feeding pipe (61), and the supporting roller (81) is provided with a receiving groove at the middle periphery thereof, wherein the receiving groove is suitable for receiving and limiting the main feeding pipe (61).

10. The under-film fertigation device according to claim 9, further comprising:

the roller (82) is rotatably arranged at the bottom of the support frame (7) and is suitable for driving the support frame (7) and the material conveying main pipe (61) on the support frame (7) to move along the axial direction of the material conveying main pipe (61).

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