High-pressure soil loosening and fertilizer injection machine

Abstract

The present invention relates to the technical field of fertilizing equipment, specifically to a high-pressure soil loosening and fertilizer injection machine, comprising: an upper sealing cylinder, a lower sealing cylinder is provided at the lower end of the upper sealing cylinder, a threaded sleeve is provided at one end of a feed hard pipe with a storage tank, and a one-way valve is provided in the inner cavity of the feed hard pipe; the lower end of the fertilizing pipe passes through the lower sealing cylinder and extends to the bottom of the lower sealing cylinder, and a discharge notch is provided at the lower end of the outer wall of the fertilizing pipe; a reset spring for sliding and resetting the fertilizing assembly is provided on the lower surface of the top plate; the beneficial effect is: by arranging the fertilizing assembly between the upper sealing cylinder and the lower sealing cylinder, the air pressure in the inner cavity of the fertilizing assembly is increased, and at the same time, the lower end of the fertilizing assembly is pushed out of the lower sealing cylinder and inserted into the soil, at this time, the waste material in the inner cavity of the fertilizing assembly explodes with the gas and scatters into the surrounding soil, effectively expanding the fertilization area, and ensuring that the fertilizer is fully mixed with the surrounding soil.

Description

Technical Field

[0001] The invention relates to the technical field of fertilizing equipment, in particular to a high-pressure soil loosening and fertilizer injection machine. Background Art

[0002] A fertilizer spreader is a machine for spreading fertilizer, consisting of a fertilizer box, a fertilizer dispenser, etc.

[0003] In the prior art, a fertilizer spreader first digs and loosens the soil, and then spreads the fertilizer into holes on the soil surface to prevent the fertilizer from escaping and causing waste.

[0004] But at present, when applying fertilizer, fertilizer is usually scattered in agglomerates in the pit and piled up, and fertilizer is difficult to fully mix into the soil around, and the area of fertilization is smaller. For this reason, the present invention proposes a high-pressure soil loosening and fertilizer injection machine to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-pressure soil loosening and fertilizer injection machine to solve the problem proposed in the above background technology that fertilizers are accumulated in clumps in the holes on the soil surface and are difficult to be fully mixed with the surrounding soil.

[0006] To achieve the above object, the present invention provides the following technical solution: a high-pressure soil loosening and fertilizer injection machine, comprising:

[0007] An upper sealing cylinder, wherein a lower sealing cylinder is provided at the lower end of the upper sealing cylinder, a sealing piston is slidably provided in the inner cavity of the upper sealing cylinder, a feed hard pipe connected thereto is fixedly provided at the lower end of the outer wall of the upper sealing cylinder, a storage tank is threadedly sleeved on one end of the feed hard pipe, and a one-way valve is provided in the inner cavity of the feed hard pipe;

[0008] A fertilizing assembly, comprising an inner cylinder located in the inner cavity at the lower end of the upper sealing cylinder, a feed notch being provided at the lower end of the outer wall of the inner cylinder, a fertilizing pipe being fixedly connected to the lower end of the inner cylinder, the lower end of the fertilizing pipe passing through the lower sealing cylinder and extending to the bottom of the lower sealing cylinder, and a discharge notch being provided at the lower end of the outer wall of the fertilizing pipe; and

[0009] A reset component is arranged in the inner cavity of the upper sealing cylinder. The reset component includes a top plate fixedly connected to the top of the inner cylinder. The lower surface of the top plate is provided with a reset spring for sliding and resetting the fertilizing component.

[0010] Preferably, the lower end face of the fertilizer pipe is fixedly connected with a threaded connecting column, the outer side of the threaded connecting column is fixedly connected with a loosening drill bit through a thread, and the lower end of the outer side wall of the inner tube is fixedly connected with a plurality of guide protrusions distributed in a ring array.

[0011] Preferably, the inner wall of the lower sealing cylinder is provided with a plurality of rotation guide grooves distributed in a circular array, the rotation guide grooves are spiral, the rotation direction of the rotation guide grooves is the same as the tightening direction of the loosening drill bit, the guide protrusion is located in the inner cavity of the rotation guide groove and is slidably connected thereto, and an annular sealing gasket is bonded to the lower end opening of the lower sealing cylinder, and the inner wall of the annular sealing gasket is in contact with the outer wall of the fertilizer pipe.

[0012] Preferably, a flange is provided below the top plate, a connecting ring is fixedly connected to the lower surface of the flange, the flange is fixedly connected to the lower end surface of the upper sealing cylinder by bolts, and the connecting ring is fixedly connected to the upper end surface of the lower sealing cylinder by bolts.

[0013] Preferably, a fixing ring is provided between the flange and the top plate, the fixing ring is movably sleeved on the outside of the inner cylinder, the return spring is sleeved on the outside of the inner cylinder, and the upper and lower ends of the return spring are respectively in contact with the surfaces of the top plate and the fixing ring.

[0014] Preferably, a rubber protective sleeve is provided on the outer side of the return spring, and the upper and lower end surfaces of the rubber protective sleeve are respectively bonded to the top plate and the fixing ring. A gap is left between the lower surface of the fixing ring and the upper surface of the flange, and the fixing ring and the flange are fixedly connected by a fixing bracket.

[0015] Preferably, a sealing ring is provided on the outer side wall of the sealing piston, and the upper surface of the sealing piston is raised upward to form a boss, and a rubber pad is bonded to the surface of the boss.

[0016] Preferably, the upper end of the upper sealing cylinder is fixedly connected to a compressor, the air outlet of the compressor is communicated with the inner cavity of the upper end of the upper sealing cylinder through an air pipe, and the outer side wall of the upper sealing cylinder is fixedly connected to a handle.

[0017] Preferably, the upper end opening of the rotation guide groove extends to the upper surface of the lower sealing cylinder, the upper surface of the lower sealing cylinder is fitted with the lower surface of the connecting ring, the inner side wall of the connecting ring is fitted with the outer side wall of the inner cylinder, and the guide protrusion is against the lower surface of the connecting ring.

[0018] Preferably, the feed slots and the discharge slots are provided in plurality and distributed in an annular array, the feed slots and the fixed bracket are located in the same plane, and the discharge slots correspond to the inner side wall of the annular sealing gasket.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention arranges a fertilizing assembly between an upper sealing cylinder and a lower sealing cylinder. The lower end of the fertilizing assembly passes through the lower sealing cylinder and extends to the bottom of the lower sealing cylinder. The inner cavity of the upper end of the upper sealing cylinder is supplied with high-pressure gas by an air pipe, and drives the sealing piston to slide, thereby increasing the air pressure in the inner cavity of the fertilizing assembly and simultaneously pushing the lower end of the fertilizing assembly out of the lower sealing cylinder and inserted into the soil. At this time, the waste material in the inner cavity of the fertilizing assembly explodes with the gas and scatters into the surrounding soil, thereby effectively expanding the fertilization area and ensuring that the fertilizer is fully mixed with the surrounding soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a half-section schematic diagram of the overall structure of the present invention;

[0023] Figure 3 For the present invention Figure 2 Schematic diagram of the explosion of the structure;

[0024] Figure 4 This is a three-dimensional schematic diagram of the fertilization assembly structure of the present invention;

[0025] Figure 5 A half-section schematic diagram of the reset assembly structure of the present invention;

[0026] Figure 6 This is a half-section schematic diagram of the lower sealing cylinder structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the overall structure of the present invention.

[0028] In the figure: 1. Upper sealing cylinder; 2. Lower sealing cylinder; 3. Sealing piston; 31. Boss; 4. Feed hard pipe; 5. Storage tank; 6. Fertilizer assembly; 61. Inner cylinder; 62. Feed notch; 63. Fertilizer pipe; 64. Discharge notch; 65. Threaded connecting column; 66. Guide protrusion; 7. Loosening drill bit; 8. Reset assembly; 81. Flange; 82. Connecting ring; 83. Fixing ring; 84. Top plate; 85. Reset spring; 86. Rubber protective sleeve; 87. Fixed bracket; 9. Rotating guide groove; 10. Ring-shaped sealing gasket; 11. Compressor; 12. Air pipe; 13. Handle. DETAILED DESCRIPTION

[0029] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit 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.

[0030] In the description of the present invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "one," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0032] For the purpose of simplicity and illustration, the principles of the embodiments are described primarily with reference to examples. In the following description, many specific details are provided to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring the understanding of these embodiments. In addition, all embodiments may be used in combination with each other.

[0033] See also Figures 1 to 7 , the present invention provides a technical solution:

[0034] Example 1

[0035] The high-pressure soil loosening and fertilizer injection machine comprises an upper sealing cylinder 1, a fertilizer application component 6 and a reset component 8.

[0036] Specifically, a lower sealing cylinder 2 is provided at the lower end of the upper sealing cylinder 1, a sealing piston 3 is slidably provided in the inner cavity of the upper sealing cylinder 1, a feeding hard pipe 4 connected thereto is fixedly provided at the lower end of the outer wall of the upper sealing cylinder 1, a storage tank 5 is threadedly sleeved on one end of the feeding hard pipe 4, and a one-way valve is provided in the inner cavity of the feeding hard pipe 4. The setting of the one-way valve ensures that the fertilizer in the inner cavity of the storage tank 5 can only enter the inner cavity of the upper sealing cylinder 1 in one direction. When the sealing piston 3 slides upward in the inner cavity of the upper sealing cylinder 1, the air pressure in the inner cavity of the lower end of the upper sealing cylinder 1 is reduced, and the fertilizer in the inner cavity of the storage tank 5 is sucked into the inner cavity of the lower end of the upper sealing cylinder 1;

[0037] Secondly, the fertilizer assembly 6 includes an inner cylinder 61 located in the inner cavity of the lower end of the upper sealing cylinder 1, and a feed slot 62 is provided at the lower end of the outer wall of the inner cylinder 61. A fertilizer pipe 63 connected thereto is fixedly connected at the lower end of the inner cylinder 61. The lower end of the fertilizer pipe 63 passes through the lower sealing cylinder 2 and extends to the bottom of the lower sealing cylinder 2. A discharge slot 64 is provided at the lower end of the outer wall of the fertilizer pipe 63. After the fertilizer enters the inner cavity of the lower end of the upper sealing cylinder 1, it remains at the bottom of the upper sealing cylinder 1. When the sealing piston 3 slides downward, the air pressure in the inner cavity of the upper sealing cylinder 1 increases, and the bottom of the upper sealing cylinder 1 is discharged. The fertilizer enters the inner cavity of the inner cylinder 61 through the feed notch 62 under the action of air pressure and falls to the bottom of the fertilizer pipe 63 under the action of gravity. When the sealing piston 3 continues to slide down and pushes the fertilizer assembly 6 to move downward, so that the lower end of the fertilizer pipe 63 extends from the inner cavity of the lower sealing cylinder 2, the discharge notch 64 is connected to the outside world. At this time, the high-pressure gas in the inner cavity of the fertilizer pipe 63 is ejected from the discharge notch 64, and drives the fertilizer to scatter, thereby fully mixing the fertilizer into the surrounding soil to increase the fertilization area. In addition, the fertilizer does not need to be sprinkled on the soil surface, which can avoid escaping.

[0038] Furthermore, the reset assembly 8 is arranged in the inner cavity of the upper sealing cylinder 1, and the reset assembly 8 includes a top plate 84 fixedly connected to the top of the inner cylinder 61. The lower surface of the top plate 84 is provided with a reset spring 85 for slidingly resetting the fertilizing assembly 6, and the threaded connection column 65 provides thrust for resetting the fertilizing assembly 6 after the sealing piston 3 is reset.

[0039] Example 2

[0040] On the basis of Example 1, in order to sprinkle fertilizer into the soil, the present application also has a threaded connection column 65 fixedly connected to the lower end face of the fertilization pipe 63, and a loosening drill bit 7 is fixedly connected to the outer side of the threaded connection column 65 through a thread. When the fertilization component 6 moves downward, the loosening drill bit 7 can be inserted into the soil to facilitate the sprinkling of fertilizer into the soil. The lower end of the outer wall of the inner tube 61 is fixedly connected to a plurality of guide protrusions 66 distributed in a ring array.

[0041] Example 3

[0042] On the basis of Example 2, in order to loosen the soil, the present application also has a plurality of rotating guide grooves 9 distributed in an annular array on the inner wall of the lower sealing cylinder 2. The rotating guide grooves 9 are spiral, and the rotation direction of the rotating guide grooves 9 is the same as the tightening direction of the loosening drill bit 7. The guide protrusion 66 is located in the inner cavity of the rotating guide groove 9 and is slidably connected thereto. When the fertilizing assembly 6 slides downward, the guide protrusion 66 is guided by the rotating guide groove 9 to rotate, so that the fertilizing assembly 6 can rotate while moving downward, that is, it can drive the loosening drill bit 7 to drill into the soil to loosen the soil, and there is no need to manually apply a large force downward, ensuring that the device is more labor-saving to use. An annular sealing gasket 10 is bonded to the lower end opening of the lower sealing cylinder 2, and the inner wall of the annular sealing gasket 10 is in contact with the outer wall of the fertilizer pipe 63. The setting of the annular sealing gasket 10 is used to ensure the sealing of the inner cavity of the lower sealing cylinder 2 to prevent gas from leaking from the lower sealing cylinder 2.

[0043] Example 4

[0044] On the basis of Example 3, in order to fix the lower sealing cylinder 2 with the upper sealing cylinder 1, the present application also has a flange 81 provided below the top plate 84, and a connecting ring 82 is fixedly connected to the lower surface of the flange 81. The flange 81 is fixedly connected to the lower end surface of the upper sealing cylinder 1 by bolts, and the connecting ring 82 is fixedly connected to the upper end surface of the lower sealing cylinder 2 by bolts. Therefore, the upper sealing cylinder 1, the flange 81, the connecting ring 82 and the lower sealing cylinder 2 can be fixedly connected together in sequence.

[0045] Example 5

[0046] On the basis of Example 4, in order to slide and reset the fertilizer assembly 6, the present application also has a fixing ring 83 provided between the flange 81 and the top plate 84, the fixing ring 83 is movably sleeved on the outside of the inner cylinder 61, and the reset spring 85 is sleeved on the outside of the inner cylinder 61, and the upper and lower ends of the reset spring 85 are respectively in contact with the surfaces of the top plate 84 and the fixing ring 83. When the sealing piston 3 slides down and squeezes the top plate 84, the top plate 84 slides down to compress the reset spring 85. When the sealing piston 3 slides up and leaves the top plate 84, the thrust provided by the reset spring 85 can push the top plate 84 upward, thereby driving the fertilizer assembly 6 to slide and reset.

[0047] Example 6

[0048] On the basis of Example 5, in order to fix the fixing ring 83, the present application also has a rubber protective sleeve 86 provided on the outside of the reset spring 85, and the upper and lower end surfaces of the rubber protective sleeve 86 are respectively bonded to the top plate 84 and the fixing ring 83, which are used to protect the reset spring 85. A gap is left between the lower surface of the fixing ring 83 and the upper surface of the flange 81, and the fixing ring 83 and the flange 81 are fixedly connected by a fixing bracket 87, which is used to fix the fixing ring 83 and the flange 81.

[0049] Example 7

[0050] On the basis of Example 6, in order to prevent the sealing piston 3 from fitting against the inner wall of the top of the upper sealing cylinder 1, the present application also has a sealing ring provided on the outer wall of the sealing piston 3, and the upper surface of the sealing piston 3 protrudes upward to form a boss 31, and a rubber pad is bonded to the surface of the boss 31. When the sealing piston 3 slides upward, the boss 31 can rest against the inner wall of the top of the upper sealing cylinder 1, ensuring that a gap is left between the sealing piston 3 and the top of the upper sealing cylinder 1.

[0051] Example 8

[0052] On the basis of Example 7, in order to push the sealing piston 3 to slide, the present application also has a compressor 11 fixedly connected to the upper end of the upper sealing cylinder 1, and the air outlet end of the compressor 11 is connected to the upper end inner cavity of the upper sealing cylinder 1 through the air pipe 12. The outer wall of the upper sealing cylinder 1 is fixedly connected with a handle 13. The compressor 11 compresses the gas and sends the compressed high-pressure gas into the upper end inner cavity of the upper sealing cylinder 1, thereby pushing the sealing piston 3 to slide downward in the inner cavity of the upper sealing cylinder 1. Conversely, when the gas in the upper end inner cavity of the upper sealing cylinder 1 is extracted, the sealing piston 3 can slide upward.

[0053] Embodiment 9

[0054] On the basis of Example 8, in order to install the fertilizer assembly 6, the upper end opening of the rotary guide groove 9 of the present application extends to the upper surface of the lower sealing cylinder 2, the upper surface of the lower sealing cylinder 2 is in contact with the lower surface of the connecting ring 82, the inner side wall of the connecting ring 82 is in contact with the outer side wall of the inner cylinder 61, and the guide protrusion 66 is against the lower surface of the connecting ring 82, as shown in FIG. Figure 3 As shown, when installing the fertilizing component 6, it is necessary to first connect the reset component 8 and the lower sealing cylinder 2 to the upper and lower ends of the fertilizing component 6 respectively, and then connect the reset component 8 to the fertilizing component 6 and install it from bottom to top into the inner cavity of the lower end of the upper sealing cylinder 1.

[0055] Example 10

[0056] On the basis of Example 9, in order to ensure the smooth transfer of fertilizer, the feed slot 62 and the discharge slot 64 of the present application are provided with multiple and distributed in a ring array to ensure that the fertilizer can be transferred smoothly. The feed slot 62 and the fixed bracket 87 are located in the same plane, and the discharge slot 64 is corresponding to the inner wall of the annular sealing gasket 10. The movement path of the fertilizer is as follows Figure 7 As shown by the middle dotted line, after the fertilizer in the storage tank 5 enters the inner cavity at the lower end of the upper sealing cylinder 1, it can pass through the feed slot 62 into the inner cylinder 61 and fall to the bottom of the fertilizer pipe 63 under the action of gravity. Finally, when the lower end of the fertilizer pipe 63 extends out of the lower sealing cylinder 2, the fertilizer at the bottom of the fertilizer pipe 63 can be sprayed out from the discharge slot 64. When the fertilizer assembly 6 slides up and resets, the discharge slot 64 just fits with the inner wall of the annular sealing gasket 10. At this time, the upper sealing cylinder 1, the lower sealing cylinder 2 and the inner cavity of the fertilizer assembly 6 are disconnected from the outside world, thereby ensuring that a high-pressure environment can be formed inside the upper sealing cylinder 1.

[0057] 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. High-pressure soil loosening and fertilizer injection machine, characterized by: include: An upper sealing cylinder (1), wherein a lower sealing cylinder (2) is provided at the lower end of the upper sealing cylinder (1), a sealing piston (3) is slidably provided in the inner cavity of the upper sealing cylinder (1), a feed hard pipe (4) connected thereto is fixedly provided at the lower end of the outer wall of the upper sealing cylinder (1), a material storage tank (5) is threadedly sleeved on one end of the feed hard pipe (4), and a one-way valve is provided in the inner cavity of the feed hard pipe (4); A fertilizing assembly (6), the fertilizing assembly (6) comprising an inner cylinder (61) located in the inner cavity at the lower end of the upper sealing cylinder (1), a feed slot (62) being provided at the lower end of the outer wall of the inner cylinder (61), a fertilizing pipe (63) being fixedly connected to the lower end of the inner cylinder (61) and communicating therewith, the lower end of the fertilizing pipe (63) passing through the lower sealing cylinder (2) and extending to the bottom of the lower sealing cylinder (2), and a discharge slot (64) being provided at the lower end of the outer wall of the fertilizing pipe (63); and A reset assembly (8), the reset assembly (8) being arranged in the inner cavity of the upper sealing cylinder (1), the reset assembly (8) comprising a top plate (84) fixedly connected to the top of the inner cylinder (61), the lower surface of the top plate (84) being provided with a reset spring (85) for slidingly resetting the fertilizing assembly (6); The outer wall of the sealing piston (3) is provided with a sealing ring, the upper surface of the sealing piston (3) is raised upward to form a boss (31), and a rubber pad is bonded to the surface of the boss (31); The upper end of the upper sealing cylinder (1) is fixedly connected to a compressor (11), the air outlet end of the compressor (11) is communicated with the inner cavity of the upper end of the upper sealing cylinder (1) through an air pipe (12), and the outer side wall of the upper sealing cylinder (1) is fixedly connected to a handle (13); The lower end surface of the fertilizer pipe (63) is fixedly connected to a threaded connection column (65), the outer side of the threaded connection column (65) is fixedly connected to a loosening drill bit (7) through a thread, and the lower end of the outer side wall of the inner tube (61) is fixedly connected to a plurality of guide protrusions (66) distributed in a ring array; The inner side wall of the lower sealing cylinder (2) is provided with a plurality of rotating guide grooves (9) distributed in an annular array. The rotating guide grooves (9) are spiral-shaped. The direction of rotation of the rotating guide grooves (9) is the same as the direction in which the loosening drill bit (7) is tightened. The guide protrusion (66) is located in the inner cavity of the rotating guide groove (9) and is slidably connected thereto. An annular sealing gasket (10) is bonded to the lower end opening of the lower sealing cylinder (2). The inner side wall of the annular sealing gasket (10) is in contact with the outer side wall of the fertilizer pipe (63).

2. The high-pressure soil loosening and fertilizer injection machine according to claim 1, characterized in that: A flange (81) is provided below the top plate (84), and a connecting ring (82) is fixedly connected to the lower surface of the flange (81). The flange (81) is fixedly connected to the lower end surface of the upper sealing cylinder (1) through bolts, and the connecting ring (82) is fixedly connected to the upper end surface of the lower sealing cylinder (2) through bolts.

3. The high-pressure soil loosening and fertilizer injection machine according to claim 2, characterized in that: A fixing ring (83) is provided between the flange (81) and the top plate (84), and the fixing ring (83) is movably sleeved on the outside of the inner cylinder (61). The return spring (85) is sleeved on the outside of the inner cylinder (61), and the upper and lower ends of the return spring (85) are respectively in contact with the surfaces of the top plate (84) and the fixing ring (83).

4. The high-pressure soil loosening and fertilizer injection machine according to claim 3, characterized in that: The outer side of the return spring (85) is provided with a rubber protective sleeve (86), and the upper and lower end surfaces of the rubber protective sleeve (86) are respectively bonded to the top plate (84) and the fixing ring (83), and a gap is left between the lower surface of the fixing ring (83) and the upper surface of the flange (81). The fixing ring (83) and the flange (81) are fixedly connected by a fixing bracket (87).

5. The high-pressure soil loosening and fertilizer injection machine according to claim 4, characterized in that: The upper end opening of the rotation guide groove (9) extends to the upper surface of the lower sealing cylinder (2), the upper surface of the lower sealing cylinder (2) is in contact with the lower surface of the connecting ring (82), the inner side wall of the connecting ring (82) is in contact with the outer side wall of the inner cylinder (61), and the guide protrusion (66) is against the lower surface of the connecting ring (82).

6. The high-pressure soil loosening and fertilizer injection machine according to claim 5, characterized in that: The feed slots (62) and the discharge slots (64) are both provided in plurality and distributed in an annular array. The feed slots (62) and the fixed bracket (87) are located in the same plane, and the discharge slots (64) correspond to the inner side wall of the annular sealing gasket (10).

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