A membrane point irrigation fertilization device for pepper planting

Abstract

The present invention belongs to the technical field of agricultural fertilization, and discloses an intra-film point irrigation fertilization device for pepper planting, comprising a storage barrel and an outer tube, wherein the outer portion of the outer tube is sleeved with a sleeve connected to the outer tube, and further comprising: a fertilizing drill rod, which is movably sleeved inside the outer tube and extends downward to below the outer tube; a film breaking component, which is installed in the sleeve; and an air pumping mechanism, which is installed on the storage barrel. The above scheme drives the tension spring combination blade to cut the ground film through the outer tube and the fertilizing drill rod, at which time a three-pronged notch is formed on the surface of the ground film, and then the air pumping mechanism is controlled to pump air into the sleeve. After the gas passes through the sleeve, the elastic piston rod is lifted and the tension spring combination blade is driven to move upward as a whole to above the ground film through a support ring. The ground film at the three-pronged notch will be reset by its own elastic force and the hole when the fertilizing drill rod passes through the ground film is blocked, thereby avoiding the situation where the ground film is deformed and residual holes are left due to the fertilizer gun head directly passing through the ground film.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural fertilization, in particular to an intra-membrane spot irrigation fertilization device for pepper planting. Background Art

[0002] Chili peppers are cultivated extensively in both northern and southern my country and are an indispensable condiment in people's daily lives. Chili pepper cultivation involves pre-plant preparation, seedling cultivation, transplanting and planting, growth management, flowering and fruiting management, and harvesting. The seedling cultivation stage is a critical phase in the chili pepper cultivation process.

[0003] In cooler, drier locations, such as mountainous areas, operators typically lay plastic film on the surface of the seedbed after sowing and compact it with soil to create a closed microenvironment. This reduces water evaporation, maintains moisture in the substrate, and improves seed germination. However, if the base fertilizer during pepper planting is not fully decomposed or lacks fertility, it can lead to weak seedlings and yellowing. In this case, supplemental nitrogen fertilizer such as urea should be applied (by spraying or irrigation).

[0004] For example, a mountain pepper intra-membrane point-irrigation fertilization device with publication number CN116097962B drives the fertilizer gun into the soil near the pepper through a cylinder. When the fertilizer gun enters the soil, the fertilizer control component quantitatively controls the liquid fertilizer to be sprayed into the soil from the gap in the gun head of the fertilizer gun to complete the fertilization.

[0005] To ensure adequate liquid fertilizer delivery, the aforementioned device, despite the relatively small diameter of its fertilizing gun tip, still needs to maintain sufficient liquid fertilizer input. Consequently, after the fertilizing gun tip passes through the ground film, it still leaves holes in the film. When temperatures are low at night in mountainous areas, cold air enters the soil directly through these holes, causing a rapid drop in soil temperature and damaging the pepper roots. To address this issue, a device for intra-membrane spot irrigation fertilization has been proposed for pepper cultivation. Summary of the Invention

[0006] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a membrane point irrigation fertilization device for pepper planting, which solves the problem that fertilizing through the ground film with the tip of a fertilizer gun will leave holes in the ground film and cause the pepper roots to suffer low temperature damage.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: an intra-membrane spot irrigation fertilization device for pepper planting, comprising a material storage barrel and an outer tube, wherein the outer tube is provided with a sleeve connected thereto, and further comprising: a fertilization drill rod movably sleeved inside the outer tube and extending downward to below the outer tube; a membrane rupture assembly installed in the sleeve and extending downward to below the fertilization drill rod; an air pumping mechanism installed on the material storage barrel with its output end connected to the sleeve, and used to pump air into the sleeve to push the membrane rupture assembly upward and then push the fertilization drill rod downward;

[0008] The storage barrel is fixedly connected to a fertilizer delivery pipe for inputting liquid fertilizer into the fertilizing drill rod, and a tension piece is fixedly connected between the outer tube and the fertilizing drill rod so that the two have a tendency to move toward each other;

[0009] The membrane rupturing assembly includes an elastic piston rod in an annular array and movably connected to the inside of the casing. The elastic piston rod has a downward tendency in the casing due to its own tension. The bottom end of the elastic piston rod extends to the bottom of the casing and is fixedly connected to a support ring mounted on the outside of the fertilizing drill rod. A plurality of tension spring combination blades with a tendency to rotate towards each other are hinged in an annular array on the support ring. In an initial state, the bottom end of the tension spring combination blade is located below the fertilizing drill rod.

[0010] Preferably, a constant pressure hole and a socket are provided on the top of the sleeve, and a socket that can be inserted into the socket is fixedly connected to the outer tube.

[0011] Preferably, one end of the fertilizer delivery pipe extends into the interior of the outer pipe and is fixedly connected to the outer pipe, and the output end of the fertilizer delivery pipe is initially located at the bottom of the fertilization drill rod, and the portion of the fertilizer delivery pipe located between the outer pipe and the fertilization drill rod is made of a hard material;

[0012] The output end of the fertilizer delivery pipe is fixedly connected to a one-way valve 1 which is in one-way communication with the cavity at the bottom of the fertilizer drill rod, and the output end of the fertilizer delivery pipe is provided with a vertical hole;

[0013] A plurality of one-way valve flaps are provided at the bottom of the fertilizing drill rod, and the fertilizing drill rod cavity is communicated with the outside world through the one-way valve flaps.

[0014] Preferably, the air pumping mechanism includes an air pumping assembly, an air guide tube and a pressing valve, the two ends of the air guide tube are respectively connected to the sleeve and the output end of the air pumping assembly, the air pumping assembly is installed on the storage barrel, and the pressing valve is arranged on the air guide tube.

[0015] Preferably, the air pump assembly includes a sleeve fixedly connected to the storage barrel, a piston cylinder movably sleeved in the sleeve, the top of the piston cylinder extends to the outside of the storage barrel and is provided with a circular hole, the bottom end of the piston cylinder is fixedly connected to a one-way valve three, the bottom of the sleeve is fixedly connected to a one-way valve two, the input end of the air guide tube is connected to the bottom of the sleeve, the top of the piston cylinder is hinged to a connecting rod one, the bottom end of the connecting rod one is hinged to a connecting rod two, and one end of the connecting rod two is hinged to the storage barrel;

[0016] The piston cylinder is in one-way communication with the sleeve through a third one-way valve, and the sleeve is in one-way communication with the air guide pipe through a second one-way valve.

[0017] Preferably, the air pump assembly can also use a micro air pump.

[0018] Preferably, a piston ring is connected to the top bearing of the fertilizing drill rod, a guide groove is provided on the outer periphery of the fertilizing drill rod, a convex shaft which can slide in the guide groove is fixed to the bottom of the outer tube, and the convex shaft is initially located at the bottom of the guide groove;

[0019] The bottom of the fertilizing drill rod is fixedly connected with blades in an annular array.

[0020] Preferably, the bottom of the guide groove is a vertical groove.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The above scheme drives the tension spring combination blade to cut the ground film through the outer tube and the fertilizer drill rod. At this time, a three-pronged notch is formed on the surface of the ground film. Then, the air pump mechanism is controlled to pump air into the casing. After the gas passes through the casing, the elastic piston rod is lifted up and the tension spring combination blade is driven to move upward as a whole to the top of the ground film through the support ring. When the elastic piston rod moves upward and passes over the insertion tube, the air pump mechanism pumps air into the outer tube through the casing, the insertion hole and the insertion tube and pushes the fertilizer drill rod through the hole between the three-pronged lines on the ground film and downward into the ground. Then, liquid fertilizer is transported to the soil through the storage barrel and the fertilizer delivery pipe. When the fertilizer drill rod is separated from the ground film, the ground film at the three-pronged notch will be reset by its own elastic force and the hole when the fertilizer drill rod passes through the ground film is sealed, avoiding the situation where the fertilizer gun head directly passes through the ground film, causing the ground film to deform and leave holes.

[0023] In the above solution, when the fertilizing drill rod descends, the part of the fertilizer delivery pipe located in the outer pipe cannot move. At this time, the cavity between the bottom of the one-way valve and the bottom of the fertilizing drill rod will increase. Due to the obstruction of the one-way valve disc, a negative pressure state will be present in the cavity, thereby drawing the liquid fertilizer in the storage barrel into the cavity through the fertilizer delivery pipe. When the air pumping mechanism stops pumping air, the elastic piston rod and the fertilizing drill rod will be reset by their own tension. When the fertilizing drill rod is reset, the volume of the cavity between the bottom of the fertilizing drill rod and the fertilizer delivery pipe will decrease, and the liquid fertilizer inside will be discharged through the one-way valve disc to achieve quantitative fertilization.

[0024] In the above scheme, due to the limitation of the convex shaft during the downward movement of the fertilizing drill rod, the convex shaft will move along the vertical groove, thereby causing the fertilizing drill rod to rotate and driving the blades to rotate, thereby ensuring that the bottom end of the fertilizing drill rod is more labor-saving when drilling into the soil and reducing the pressure required to be provided by the pump air component. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a side plan view of the present invention;

[0027] Figure 3 Schematic diagram of the matching structure of the outer tube and the insertion rod of the present invention;

[0028] Figure 4 Schematic diagram of the structure of the membrane rupture component of the present invention;

[0029] Figure 5 It is a schematic cross-sectional structural diagram of the front side of the present invention;

[0030] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0031] Figure 7 for Figure 5 Enlarged view of point B in the middle;

[0032] Figure 8 for Figure 5 Enlarged view of point C in the middle;

[0033] Figure 9 It is a schematic diagram of a partial cross-sectional structure of the sleeve in the present invention;

[0034] Figure 10 is a perspective view of the pump assembly of the present invention;

[0035] Figure 11 This is a disassembled view of the outer tube and the insertion rod of the present invention.

[0036] In the figure: 1. Storage barrel; 11. Fertilizer delivery pipe; 12. One-way valve 1; 13. Vertical hole; 2. Outer tube; 21. Tension member; 22. Casing; 221. Constant pressure hole; 222. Jack; 23. Insert pipe; 24. Convex shaft; 3. Fertilizer drill rod; 31. One-way valve disc; 32. Piston ring; 33. Guide groove; 331. Vertical groove; 34. Blade; 4. Pumping mechanism; 41. Pumping assembly; 411. Sleeve; 412. Piston cylinder; 413. Connecting rod 1; 414. Connecting rod 2; 415. One-way valve 2; 416. One-way valve 3; 42. Air guide tube; 43. Press valve; 5. Membrane rupture assembly; 51. Elastic piston rod; 52. Support ring; 53. Tension spring combination blade. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] like Figures 1 to 11 As shown, the present invention provides an intra-membrane spot irrigation fertilization device for pepper planting, comprising a storage barrel 1 and an outer tube 2, wherein the outer tube 2 is sleeved with a sleeve 22 connected thereto, and further comprising: a fertilization drill rod 3, which is movably sleeved inside the outer tube 2 and extends downward to below the outer tube 2; a membrane rupture component 5, which is installed in the sleeve 22 and extends downward to below the fertilization drill rod 3; an air pumping mechanism 4, which is installed on the storage barrel 1 and has an output end connected to the sleeve 22, and is used to pump air into the sleeve 22 to push the membrane rupture component 5 upward and then push the fertilization drill rod 3 downward;

[0039] The storage barrel 1 is fixedly connected to a fertilizer delivery pipe 11 for inputting liquid fertilizer into the fertilizer drill rod 3. A tension piece 21 is fixedly connected between the outer tube 2 and the fertilizer drill rod 3 so that the two have a tendency to move toward each other.

[0040] The membrane rupture assembly 5 includes an elastic piston rod 51 in an annular array and movably connected to the interior of the casing 22. The elastic piston rod 51 has a downward tendency in the casing 22 due to its own tension. The bottom end of the elastic piston rod 51 extends below the casing 22 and is fixedly connected to a support ring 52 mounted on the outside of the fertilizing drill rod 3. A plurality of tension spring combination blades 53 with a tendency to rotate in opposite directions are hingedly connected in an annular array on the support ring 52. In the initial state, the bottom ends of the tension spring combination blades 53 are located below the fertilizing drill rod 3.

[0041] The top of the sleeve 22 is provided with a constant pressure hole 221 and a plug hole 222, and the outer tube 2 is fixed with a plug 23 that can be inserted into the plug hole 222;

[0042] When the fertilizing drill rod 3 leaves the ground film, the ground film at the three-pronged notch is reset by its own elastic force and the hole in the ground film is blocked when the fertilizing drill rod 3 passes through the ground film, thereby avoiding the situation that the fertilizing gun head directly passes through the ground film, causing the ground film to deform and leave holes.

[0043] like Figure 1-Figure 4 、 Figure 6-Figure 8 and Figure 11 As shown, one end of the fertilizer delivery pipe 11 extends into the interior of the outer tube 2 and is fixedly connected to the outer tube 2, and the output end of the fertilizer delivery pipe 11 is initially located at the bottom of the fertilizing drill rod 3. The portion of the fertilizer delivery pipe 11 located between the outer tube 2 and the fertilizing drill rod 3 is made of a hard material;

[0044] The output end of the fertilizer delivery pipe 11 is fixedly connected with a one-way valve 12 which is connected to the cavity at the bottom of the fertilizer drill rod 3 in one direction. A vertical hole 13 is opened at the output end of the fertilizer delivery pipe 11;

[0045] A plurality of one-way valve flaps 31 are provided at the bottom of the fertilizing drill rod 3, and the cavity of the fertilizing drill rod 3 is connected to the outside world through the one-way valve flaps 31;

[0046] With the above solution, when the fertilizing drill rod 3 moves downward, the portion of the fertilizer delivery pipe 11 located in the outer pipe 2 cannot move. At this time, the cavity between the bottom of the one-way valve 12 and the bottom of the fertilizing drill rod 3 will increase. Due to the obstruction of the one-way valve disc 31, a negative pressure state will be present in the cavity, thereby drawing the liquid fertilizer in the storage barrel 1 into the cavity through the fertilizer delivery pipe 11. When the air pumping mechanism 4 stops pumping air, the elastic piston rod 51 and the fertilizing drill rod 3 will be reset by their own tension. When the fertilizing drill rod 3 is reset, the volume of the cavity between the bottom of the fertilizing drill rod 3 and the fertilizer delivery pipe 11 is reduced, and the liquid fertilizer inside will be discharged through the one-way valve disc 31 to achieve quantitative fertilization.

[0047] It is worth noting that since the fertilizing drill rod 3 releases liquid fertilizer through the one-way valve disc 31 during the upward reset process, when the fertilizing drill rod 3 is initially reset, the tension member 21 is stretched to its longest length at this time, and its liquid squeezing force on the bottom cavity of the fertilizing drill rod 3 is at its maximum, thereby ensuring that the fertilizing drill rod 3 can still be reset when the bottom end is in the soil.

[0048] like Figure 1-Figure 4、 Figure 7 、 Figure 9 and Figure 10 As shown, the air pumping mechanism 4 includes an air pumping assembly 41, an air guide tube 42 and a pressing valve 43. The two ends of the air guide tube 42 are respectively connected to the sleeve 22 and the output end of the air pumping assembly 41. The air pumping assembly 41 is installed on the storage barrel 1, and the pressing valve 43 is provided on the air guide tube 42.

[0049] The pump air assembly 41 includes a sleeve 411 fixedly connected to the storage barrel 1, a piston cylinder 412 is movably sleeved in the sleeve 411, the top of the piston cylinder 412 extends to the outside of the storage barrel 1 and is provided with a circular hole, a one-way valve 3 416 is fixedly connected to the bottom of the piston cylinder 412, a one-way valve 2 415 is fixedly connected to the bottom of the sleeve 411, the input end of the air guide tube 42 is connected to the bottom of the sleeve 411, a connecting rod 1 413 is hinged to the top of the piston cylinder 412, a connecting rod 2 414 is hinged to the bottom of the connecting rod 1 413, and one end of the connecting rod 2 414 is hinged to the storage barrel 1;

[0050] The piston cylinder 412 is in one-way communication with the sleeve 411 through a third one-way valve 416 , and the sleeve 411 is in one-way communication with the air guide pipe 42 through a second one-way valve 415 ;

[0051] With the above solution, the operator manually presses the second connecting rod 414 to drive the piston cylinder 412 to reciprocate up and down through the first connecting rod 413. When the third one-way valve 416 moves upward, due to the obstruction of the second one-way valve 415, external gas will enter the piston cylinder 412 through the circular hole at the top of the piston cylinder 412 and enter the sleeve 411 through the third one-way valve 416. When the piston cylinder 412 moves downward, it will transport the gas in the sleeve 411 to the bottom of the sleeve 411 and be compressed and stored. When pumping air is needed, the operator can complete the operation by pressing the pressing valve 43 to open the pressing valve 43, which is convenient for the operator to operate in mountainous conditions.

[0052] If the pump gas assembly 41 is replaced with a micro air pump, it is more labor-saving and convenient than the operator having to press the connecting rod 2 414 to compress and store the gas, and it is more suitable for larger plain areas.

[0053] like Figure 4 、 Figure 7 and Figure 11 As shown, the top bearing of the fertilizing drill rod 3 is connected to a piston ring 32, the outer periphery of the fertilizing drill rod 3 is provided with a guide groove 33, the bottom of the outer tube 2 is fixed with a convex shaft 24 that can slide in the guide groove 33, and the convex shaft 24 is initially located at the bottom of the guide groove 33; the bottom of the fertilizing drill rod 3 is fixed with a circular array of blades 34;

[0054] The bottom of the guide groove 33 is a vertical groove 331;

[0055] With the above solution, due to the position limitation of the convex shaft 24 during the downward movement of the fertilizing drill rod 3, the convex shaft 24 will move along the vertical groove 331, thereby rotating the fertilizing drill rod 3 and driving the blade 34 to rotate, thereby ensuring that the bottom end of the fertilizing drill rod 3 is more labor-saving when drilling into the soil and reducing the pressure required to be provided by the pump assembly 41;

[0056] It is worth noting that when the convex shaft 24 moves in the vertical groove 331, the fertilizing drill rod 3 only moves axially, which prevents the bottom end of the fertilizing drill rod 3 from rotating during the process of passing through the ground film and winding up the gap in the ground film, thereby damaging the ground film.

[0057] The working principle and use process of the present invention:

[0058] The operator carries the storage barrel 1 on his back and holds the outer tube 2 in his hand. When applying fertilizer, the outer tube 2 and the fertilizer drill rod 3 drive the tension spring combination blade 53 to cut the ground film. At this time, a three-pronged notch is formed on the surface of the ground film. Then, the air pump mechanism 4 is controlled to pump air into the casing 22. After the gas passes through the casing 22, the elastic piston rod 51 is lifted and the tension spring combination blade 53 is driven to move upward as a whole to the top of the ground film through the support ring 52. When the elastic piston rod 51 moves upward and passes over the insertion tube 23, the air pump mechanism 4 pumps air into the outer tube 2 through the casing 22, the insertion hole 222 and the insertion tube 23, and pushes the fertilizer drill rod 3 through the hole between the three-pronged lines on the ground film and downward into the ground. Then, the liquid fertilizer is transported to the soil through the storage barrel 1 and the fertilizer delivery pipe 11. When the fertilizer drill rod 3 is separated from the ground film, the ground film at the three-pronged notch will be reset by its own elastic force and seal the hole made by the fertilizer drill rod 3 passing through the ground film.

[0059] Since the portion of the fertilizer delivery pipe 11 located in the outer pipe 2 cannot move, when the fertilizing drill rod 3 descends, the tension member 21 will be gradually stretched and force will be accumulated, and the cavity between the bottom of the one-way valve 12 and the bottom of the fertilizing drill rod 3 will increase. Due to the obstruction of the one-way valve disc 31, a negative pressure state will be present in the cavity, thereby extracting the liquid fertilizer in the storage barrel 1 into the cavity through the fertilizer delivery pipe 11. When the air pumping mechanism 4 stops pumping air, the elastic piston rod 51 and the fertilizing drill rod 3 will be reset by their own tension. When the fertilizing drill rod 3 is reset, the volume of the cavity between the bottom of the fertilizing drill rod 3 and the fertilizer delivery pipe 11 will decrease, and the liquid fertilizer inside will be discharged through the one-way valve disc 31 to achieve quantitative fertilization.

[0060] During the downward movement of the fertilizing drill rod 3, due to the limitation of the convex shaft 24, the convex shaft 24 will move along the vertical groove 331, thereby causing the fertilizing drill rod 3 to rotate and driving the blade 34 to rotate, thereby ensuring that the bottom end of the fertilizing drill rod 3 is more labor-saving when drilling into the soil, and reducing the pressure required to be provided by the pump air component 41.

[0061] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0062] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A membrane point irrigation fertilization device for pepper planting, comprising a storage barrel (1) and an outer tube (2), wherein the outer tube (2) is provided with a sleeve (22) in communication with the outer tube (2), characterized in that: Also includes: A fertilizing drill rod (3) is movably sleeved inside the outer tube (2) and extends downward to below the outer tube (2); A membrane rupture assembly (5) is installed in the casing (22) and extends downward to below the fertilization drill rod (3); An air pump mechanism (4) is mounted on the storage barrel (1) and has an output end connected to the casing (22), and is used to pump air into the casing (22) to push the membrane rupture component (5) upward and then push the fertilization drill rod (3) downward; A fertilizer delivery pipe (11) for delivering liquid fertilizer to the fertilizer drill rod (3) is fixedly connected to the storage barrel (1), and a tension member (21) is fixedly connected between the outer tube (2) and the fertilizer drill rod (3) to enable the two to have a tendency to move toward each other; The membrane breaking assembly (5) comprises an elastic piston rod (51) in an annular array and movably connected to the inside of the casing (22). The elastic piston rod (51) has a downward tendency in the casing (22) due to its own tension. The bottom end of the elastic piston rod (51) extends below the casing (22) and is fixedly connected to a support ring (52) sleeved on the outside of the fertilizing drill rod (3). A plurality of tension spring combination blades (53) with a tendency to rotate towards each other are hinged in an annular array on the support ring (52). In an initial state, the bottom end of the tension spring combination blade (53) is located below the fertilizing drill rod (3).

2. The intra-membrane spot irrigation fertilization device for pepper planting according to claim 1, characterized in that: The top of the sleeve (22) is provided with a constant pressure hole (221) and an insertion hole (222), and the outer tube (2) is fixedly connected with an insertion tube (23) capable of being inserted into the insertion hole (222).

3. The intra-membrane spot irrigation fertilization device for pepper planting according to claim 2, characterized in that: One end of the fertilizer delivery pipe (11) extends into the interior of the outer pipe (2) and is fixedly connected to the outer pipe (2), and the output end of the fertilizer delivery pipe (11) is initially located at the bottom of the fertilizer drill rod (3), and the portion of the fertilizer delivery pipe (11) located between the outer pipe (2) and the fertilizer drill rod (3) is made of a hard material; The output end of the fertilizer delivery pipe (11) is fixedly connected to a one-way valve (12) that is in one-way communication with the bottom cavity of the fertilizer drill rod (3), and a vertical hole (13) is opened at the output end of the fertilizer delivery pipe (11); A plurality of one-way valve flaps (31) are provided at the bottom of the fertilizing drill rod (3), and the cavity of the fertilizing drill rod (3) is communicated with the outside world via the one-way valve flaps (31).

4. The intra-membrane spot irrigation fertilization device for pepper planting according to claim 1, characterized in that: The air pumping mechanism (4) comprises an air pumping assembly (41), an air guide tube (42) and a pressing valve (43), wherein both ends of the air guide tube (42) are respectively connected to the sleeve (22) and the output end of the air pumping assembly (41), the air pumping assembly (41) is mounted on the material storage barrel (1), and the pressing valve (43) is arranged on the air guide tube (42).

5. The intra-membrane spot irrigation fertilization device for pepper planting according to claim 4, characterized in that: The pump air assembly (41) includes a sleeve (411) fixedly connected to the storage barrel (1), a piston cylinder (412) is movably sleeved in the sleeve (411), the top of the piston cylinder (412) extends to the outside of the storage barrel (1) and is provided with a circular hole, the bottom of the piston cylinder (412) is fixedly connected to a one-way valve three (416), the bottom of the sleeve (411) is fixedly connected to a one-way valve two (415), the input end of the air guide tube (42) is connected to the bottom of the sleeve (411), the top of the piston cylinder (412) is hinged to a connecting rod one (413), the bottom of the connecting rod one (413) is hinged to a connecting rod two (414), and one end of the connecting rod two (414) is hinged to the storage barrel (1); The piston cylinder (412) is in one-way communication with the sleeve (411) via a third one-way valve (416), and the sleeve (411) is in one-way communication with the air guide tube (42) via a second one-way valve (415).

6. The intra-membrane spot irrigation fertilization device for pepper planting according to claim 5, characterized in that: The pump assembly (41) can also use a micro air pump.

7. The intra-membrane spot irrigation fertilization device for pepper planting according to claim 1, characterized in that: The top bearing of the fertilizing drill rod (3) is connected to a piston ring (32), the outer periphery of the fertilizing drill rod (3) is provided with a guide groove (33), and the bottom of the outer tube (2) is fixedly connected to a convex shaft (24) that can slide in the guide groove (33), and the convex shaft (24) is initially located at the bottom of the guide groove (33); Blades (34) are fixedly connected in an annular array at the bottom of the fertilizing drill rod (3).

8. The intra-membrane spot irrigation fertilization device for pepper planting according to claim 7, characterized in that: The bottom of the guide groove (33) is a vertical groove (331).

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