Gleditsia sinensis fertilizing device

Abstract

The invention provides a gleditsia sinensis fertilizing device, and relates to the technical field of gleditsia sinensis planting. The mounting seat comprises an inner seat and an outer seat, an air pipe is fixedly mounted at the outer end of the fertilizer conveying pipe, a group of vertical guide pipes are arranged on the air pipe, a group of rotating rods are rotatably mounted at the bottom of the air pipe, a group of pistons are slidably mounted in the guide pipes, a group of air conveying seats are mounted at the outer end of the air pipe in an inserted manner, and second air pumps are mounted on the air conveying seats; through the mounting seat, the device can be conveniently and rapidly fixed on tree trunks with different sizes, the device is convenient for rapid quantitative fertilization, the fertilization is convenient, and the device has better fertilization efficiency; the size of the space in the fertilizer storage pipe of the device can be adjusted through the adjusting seat, so that the device can conveniently adjust the quantitative fertilization amount of the device as required, and the device has better adjustability; the problems that the Gleditsia sinensis Lam needs to be sequentially fertilized, the fertilization efficiency is low, the consumed time is long, and quantitative fertilization on different Gleditsia sinensis Lam is inconvenient according to needs are solved.

Description

Technical Field

[0001] The invention relates to the technical field of planting sapodilla trees, and in particular to a sapodilla tree fertilizing device. Background Art

[0002] The internal components of the leaves of the soapberry tree have medicinal value and are often used in the preparation of traditional Chinese medicine. It is beneficial to plant soapberry trees on a large scale, so a soapberry tree fertilization device is needed for fertilization.

[0003] As for the existing fertilizing device for sapodilla trees, it is necessary to fertilize the sapodilla trees in sequence, which has the problems of low fertilization efficiency, long time consumption, and inconvenience in quantitative fertilization of different sapodilla trees according to needs. Summary of the invention

[0004] The disclosed embodiment relates to a fertilizing device for sapodilla trees, which cooperates with a fertilizer delivery pipe through a first air pump so that the device can store fertilizer in a quantitative manner, and cooperates with a sealing plate through the air pipe so that the device can quickly and quantitatively fertilize, and fertilization is convenient and has better fertilization efficiency.

[0005] In a first aspect of the present disclosure, a device for fertilizing a sapodilla tree is provided, which specifically comprises: a mounting seat;

[0006] The mounting seat comprises an inner seat and an outer seat, the inner seat is plugged and installed on the outer seat, and the inner seat is connected to the outer seat by bolts, a group of fixing seats are threadedly installed on the outer seat, a group of fertilizer delivery pipes are fixedly installed on the outer end of the mounting seat, a group of main material pipes are sleeved and installed on the outer end of the fertilizer delivery pipe, a material tank is installed on the top of the main material pipe, and a first air pump is connected to the outer end of the main material pipe, a group of vertical fertilizer storage pipes are opened on the fertilizer delivery pipe, a group of adjustment seats are threadedly installed on the bottom of the fertilizer storage pipe, the top of the adjustment seat is an italic structure, a group of closing plates are rotatably installed on the bottom of the fertilizer storage pipe, and rotating shafts are respectively fixed at both ends of the closing plate, an air pipe is fixedly installed on the outer end of the fertilizer delivery pipe, a group of vertical conduits are opened on the air pipe, a group of rotating rods are rotatably installed on the bottom of the air pipe, a group of pistons are slidably installed in the conduit, a connecting rod is fixed on the bottom of the piston, the bottom of the connecting rod is transmission-connected to the rotating rod, the rotating rod is transmission-connected to the outer end of the rotating shaft on the closing plate, a group of air delivery seats are plugged and installed on the outer end of the air pipe, and a second air pump is installed on the air delivery seat.

[0007] In at least some embodiments, a set of first synchronous wheels is fixedly mounted on the outer end of the rotating shaft, a set of second synchronous wheels is fixedly mounted on the outer end of the rotating rod, and the first synchronous wheels at the outer end of the rotating shaft and the second synchronous wheels at the outer end of the rotating rod are connected via a synchronous belt transmission.

[0008] In at least some embodiments, a set of racks is fixedly mounted on the left end of the connecting rod, a set of gears is fixedly mounted on the inner end of the rotating rod, and the racks on the left end of the connecting rod are meshed and transmission-connected with the gears on the inner end of the rotating rod.

[0009] In at least some embodiments, a group of screw holes are formed on the outer seat, a group of screw rods are fixedly mounted on the outer end of the fixing seat, and the screw rods at the outer end of the fixing seat are threadedly mounted on the screw holes of the outer seat.

[0010] In at least some embodiments, a group of elastic members are sleeved and installed in the conduit, and the top ends of the elastic members are in contact with the bottom surface of the piston.

[0011] In at least some embodiments, a group of threaded holes are opened at the outer end of the adjustment seat, a group of threaded rods are rotatably mounted on the fertilizer delivery pipe, and the threaded holes at the outer end of the adjustment seat are threadedly mounted on the threaded rods of the fertilizer delivery pipe.

[0012] In at least some embodiments, the left end of the fertilizer delivery pipe is an external pipe, the left end of the trachea is an external connecting pipe, the two adjacent fertilizer delivery pipes are connected together by plugging in extension pipes, and the two adjacent trachea are connected together by plugging in extension pipes.

[0013] In at least some embodiments, two sets of guide holes are opened at the outer end of the adjustment seat, two sets of guide rods are fixedly installed at the bottom of the fertilizer delivery pipe, and the guide holes at the outer end of the adjustment seat are respectively slidably installed on the guide rods at the bottom of the fertilizer delivery pipe.

[0014] In at least some embodiments, a group of guide grooves are formed at the right end of the connecting rod, a group of inner guide blocks are formed at the bottom of the conduit, and the guide grooves at the right end of the connecting rod are slidably mounted on the inner guide blocks at the bottom of the conduit.

[0015] In at least some embodiments, a group of positioning rods are fixedly installed at both ends of the inner seat, a group of positioning holes are opened at both ends of the outer seat, and the positioning rods at both ends of the inner seat are plugged into the positioning holes at both ends of the outer seat.

[0016] The present invention provides a device for applying fertilizer to a sapodilla tree, which has the following beneficial effects:

[0017] In the present invention, the mounting seat enables the device to be quickly fixed on tree trunks of different sizes, the first air pump cooperates with the fertilizer delivery pipe to enable the device to store fertilizer in a quantitative manner, and the air pipe cooperates with the closing plate to enable the device to quickly and quantitatively apply fertilizers, and the fertilization is convenient and has better fertilization efficiency; the adjustment seat can adjust the size of the space in the fertilizer storage pipe of the device, so that the device can adjust the amount of fertilizer applied by the device in a quantitative manner according to needs, so that the device has better adjustability.

[0018] In addition, by inserting the positioning rods at both ends of the inner seat into the positioning holes at both ends of the outer seat, the inner seat is connected to the outer seat by bolts, and the screw rod at the outer end of the fixed seat is threadedly installed on the screw hole of the outer seat. By rotating the screw rod, the fixed seat moves inward to be fixed to the outer end of the trunk, thereby making the device easy to quickly adjust and fix according to tree trunks of different sizes.

[0019] In addition, fertilizer is placed in the material tank and air is blown by the first air pump, so that the fertilizer moves to the right until the fertilizer storage pipe of the fertilizer delivery pipe is full of fertilizer, and then the fertilizer continues to move right to the fertilizer storage pipe of the next fertilizer delivery pipe until the fertilizer storage pipes of all fertilizer delivery pipes are full of fertilizer, and the excess fertilizer flows out through the outer end of the rightmost fertilizer delivery pipe, so that the device can easily carry out quantitative fertilization through the fertilizer storage pipe of the fertilizer delivery pipe, and the second air pump blows air to the air pipe through the air delivery seat, and the guide groove at the right end of the connecting rod is slidably installed on the inner guide block at the bottom of the guide tube, and the piston moves downward, and the rack at the left end of the connecting rod is meshed and connected with the gear at the inner end of the rotating rod to drive the rotating rod to rotate, and the first synchronous wheel at the outer end of the rotating shaft is connected with the second synchronous wheel at the outer end of the rotating rod through a synchronous belt drive to drive the closing plate to rotate clockwise, so as to automatically unload and fertilize, thereby making the device convenient for fertilization and having a high fertilization efficiency.

[0020] In addition, the guide holes at the outer end of the adjustment seat are respectively slidably installed on the guide rods at the bottom of the fertilizer delivery pipe, and the threaded holes at the outer end of the adjustment seat are threadedly installed on the threaded rods of the fertilizer delivery pipe. By rotating the threaded rods, the adjustment seat can be moved up and down, that is, the size of the space in the fertilizer storage pipe of the device is adjusted, so that the device can be conveniently adjusted according to the needs. The amount of fertilizer applied by the device is made quantitative, and the device has better adjustability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0022] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0023] In the attached picture:

[0024] Figure 1 It is a front axial schematic diagram of a fertilizing device for sapodilla trees of the present invention.

[0025] Figure 2 It is a rear axial schematic diagram of a fertilizing device for sapodilla trees of the present invention.

[0026] Figure 3 It is a schematic diagram of a fixing seat of a fertilizing device for Gleditsia sinensis trees of the present invention.

[0027] Figure 4 The present invention is a schematic diagram of a fertilizer delivery pipe of a device for fertilizing a sapodilla tree.

[0028] Figure 5 The utility model is an internal schematic diagram of a fertilizer delivery pipe of a fertilizing device for a sapodilla tree of the present invention.

[0029] Figure 6 The utility model is a schematic diagram of disassembling and assembling the adjustment seat of the fertilizing device for sapodilla tree of the present invention.

[0030] Figure 7 It is an internal schematic diagram of the air pipe of the device for fertilizing sapodilla trees of the present invention.

[0031] Figure 8 The present invention is a schematic diagram of the bottom installation of the connecting rod of the fertilizing device for Gleditsia sinensis.

[0032] Reference numerals list

[0033] 1. Mounting seat; 101. Inner seat; 1011. Positioning rod; 1012. Bolt; 102. Outer seat; 1021. Screw hole; 1022. Positioning hole; 103. Fixing seat; 1031. Screw; 2. Fertilizer delivery pipe; 201. External pipe; 202. Fertilizer storage pipe; 203. Adjusting seat; 2031. Guide hole; 2032. Threaded hole; 204. Closing plate; 2041. Rotating shaft; 2042. First synchronous wheel; 2043. Synchronous Belt; 205, guide rod; 206, threaded rod; 3, air pipe; 301, external connecting pipe; 302, guide tube; 3021, inner guide block; 303, rotating rod; 3031, second synchronous wheel; 3032, gear; 304, piston; 3041, connecting rod; 3042, elastic member; 3043, rack; 3044, guide groove; 4, main material pipe; 401, material tank; 402, first air pump; 5, air delivery seat; 501, second air pump. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figures 1 to 8 As shown:

[0036] The present invention provides a fertilizing device for a sapodilla tree, comprising a mounting seat 1;

[0037] The mounting base 1 includes an inner base 101 and an outer base 102, the inner base 101 is plugged and installed on the outer base 102, and the inner base 101 is connected to the outer base 102 by bolts 1012, a group of fixing bases 103 are threadedly installed on the outer base 102, a group of fertilizer delivery pipes 2 are fixedly installed on the outer end of the mounting base 1, a group of main material pipes 4 are sleeved and installed on the outer end of the fertilizer delivery pipes 2, a material tank 401 is installed on the top of the main material pipes 4, and a first air pump 402 is connected to the outer end of the main material pipes 4, a group of vertical fertilizer storage pipes 202 are opened on the fertilizer delivery pipes 2, and a group of adjustment seats 203 are threadedly installed on the bottom of the fertilizer storage pipes 202, and the top of the adjustment seat 203 is an italic structure. 2 is rotatably mounted with a group of closing plates 204 at the bottom, and rotating shafts 2041 are respectively fixed at both ends of the closing plate 204, an air pipe 3 is fixedly mounted on the outer end of the fertilizer delivery pipe 2, a group of vertical conduits 302 are opened on the air pipe 3, a group of rotating rods 303 are rotatably mounted on the bottom of the air pipe 3, a group of pistons 304 are slidably mounted in the conduits 302, a connecting rod 3041 is fixed to the bottom of the piston 304, the bottom of the connecting rod 3041 is transmission-connected with the rotating rod 303, the rotating rod 303 is transmission-connected with the outer end of the rotating shaft 2041 on the closing plate 204, a group of air delivery seats 5 are plugged and mounted on the outer end of the air pipe 3, and a second air pump 501 is mounted on the air delivery seat 5.

[0038] In the embodiments of the present disclosure, Figure 3 As shown, a group of positioning rods 1011 are fixedly installed at both ends of the inner seat 101, a group of positioning holes 1022 are respectively opened at both ends of the outer seat 102, and the positioning rods 1011 at both ends of the inner seat 101 are plugged and installed on the positioning holes 1022 at both ends of the outer seat 102, and a group of screw holes 1021 are opened on the outer seat 102, and a group of screw rods 1031 are fixedly installed at the outer end of the fixed seat 103, and the screw rods 1031 at the outer end of the fixed seat 103 are threadedly installed in the screw holes 1022 of the outer seat 102. 21; the specific function is to insert the positioning rods 1011 at both ends of the inner seat 101 into the positioning holes 1022 at both ends of the outer seat 102, the inner seat 101 is connected to the outer seat 102 by bolts 1012, and the screw rod 1031 at the outer end of the fixed seat 103 is threadedly installed on the screw hole 1021 of the outer seat 102, and the screw rod 1031 is rotated to move the fixed seat 103 inward to the outer end fixed to the trunk, so that the device can be quickly adjusted and fixed according to the trunks of different sizes.

[0039] Among them, Figures 4 to 8As shown, the left end of the fertilizer delivery pipe 2 is an external pipe 201, the left end of the trachea 3 is an external connecting pipe 301, the two adjacent fertilizer delivery pipes 2 are connected together by plugging the extension pipe, and the two adjacent trachea 3 are connected together by plugging the extension pipe. A set of first synchronous wheels 2042 are fixedly installed on the outer end of the rotating shaft 2041, and a set of second synchronous wheels 3031 are fixedly installed on the outer end of the rotating rod 303. The first synchronous wheel 2042 at the outer end of the rotating shaft 2041 and the second synchronous wheel 3031 at the outer end of the rotating rod 303 are connected by a synchronous belt 2043. The right end of the connecting rod 3041 is provided with a first synchronous wheel 2042. There is a group of guide grooves 3044, a group of inner guide blocks 3021 are opened at the bottom of the conduit 302, and the guide groove 3044 at the right end of the connecting rod 3041 is slidably installed on the inner guide block 3021 at the bottom of the conduit 302, a group of elastic members 3042 are sleeved and installed in the conduit 302, and the top of the elastic member 3042 contacts the bottom surface of the piston 304, a group of racks 3043 are fixedly installed at the left end of the connecting rod 3041, and a group of gears 3032 are fixedly installed at the inner end of the rotating rod 303, and the racks 3043 at the left end of the connecting rod 3041 and the gears 3032 at the inner end of the rotating rod 303 are fixedly installed. 32 meshing transmission connection; specific function, fertilizer is contained in the material tank 401, and air is blown by the first air pump 402, and the fertilizer moves to the right until the fertilizer storage pipe 202 of the fertilizer delivery pipe 2 is full of fertilizer, and the fertilizer continues to move to the right to the fertilizer storage pipe 202 of the next fertilizer delivery pipe 2, until the fertilizer storage pipes 202 of all fertilizer delivery pipes 2 are full of fertilizer, and the excess fertilizer flows out through the outer end of the rightmost fertilizer delivery pipe 2, so that the device can be convenient for quantitative fertilization through the fertilizer storage pipe 202 of the fertilizer delivery pipe 2, and the second air pump 501 blows air to the air pipe 3 through the air delivery seat 5, and the outer side of the air pipe 3 at the rightmost end is blocked by the sealing cap, and the connection The guide groove 3044 at the right end of the rod 3041 is slidably installed on the inner guide block 3021 at the bottom of the conduit 302, the piston 304 moves downward, the rack 3043 at the left end of the connecting rod 3041 is meshed and connected with the gear 3032 at the inner end of the rotating rod 303 to drive the rotating rod 303 to rotate, and the first synchronous wheel 2042 at the outer end of the rotating shaft 2041 is connected with the second synchronous wheel 3031 at the outer end of the rotating rod 303 through the synchronous belt 2043 to drive the closing plate 204 to rotate clockwise, so as to automatically unload and fertilize, so that the device is convenient for fertilization and has better fertilization efficiency.

[0040] Embodiment 2: Based on Embodiment 1, wherein Figure 5 and Figure 6As shown, the outer end of the adjustment seat 203 is provided with two sets of guide holes 2031, the bottom of the fertilizer delivery pipe 2 is fixedly installed with two sets of guide rods 205, and the guide holes 2031 at the outer end of the adjustment seat 203 are respectively slidably installed on the guide rods 205 at the bottom of the fertilizer delivery pipe 2, and the outer end of the adjustment seat 203 is provided with a set of threaded holes 2032, and the fertilizer delivery pipe 2 is rotatably installed with a set of threaded rods 206, and the threaded holes 2032 at the outer end of the adjustment seat 203 are threadedly installed on the threaded rods 206 of the fertilizer delivery pipe 2 ;Specific function: the guide holes 2031 at the outer ends of the adjustment seats 203 are respectively slidably mounted on the guide rods 205 at the bottom of the fertilizer delivery pipe 2, and the threaded holes 2032 at the outer ends of the adjustment seats 203 are threadedly mounted on the threaded rods 206 of the fertilizer delivery pipe 2. By rotating the threaded rods 206, the adjustment seats 203 can be moved up and down, that is, the size of the space in the fertilizer storage pipe 202 of the device is adjusted, so that the device can be conveniently adjusted according to the needs. The amount of fertilizer for quantitative fertilization of the device has better adjustability.

[0041] Specific usage and function of this embodiment: In the present invention, the inner seat 101 is connected to the outer seat 102 by a bolt 1012, and the screw 1031 is rotated to move the fixed seat 103 inward to the outer end fixed to the trunk, so that the device can be quickly adjusted and fixed according to the trunks of different sizes; fertilizer is contained in the material tank 401, and the fertilizer is blown by the first air pump 402, and the fertilizer moves to the right until the fertilizer storage pipe 202 of the fertilizer delivery pipe 2 is full of fertilizer, and the fertilizer continues to move to the right to the fertilizer storage pipe 202 of the next fertilizer delivery pipe 2, until all the fertilizer storage pipes 202 of the fertilizer delivery pipes 2 are full of fertilizer, and the excess fertilizer is passed through the rightmost end The outer end of the fertilizer delivery pipe 2 flows out, so that the device can easily carry out quantitative fertilization through the fertilizer storage pipe 202 of the fertilizer delivery pipe 2, the second air pump 501 blows air to the air pipe 3 through the air delivery seat 5, and the piston 304 moves downward to drive the rotating rod 303 to rotate, and drives the closing plate 204 to rotate clockwise to automatically unload fertilizer, so that the device is convenient for fertilization and has a better fertilization efficiency; rotating the threaded rod 206 can make the adjustment seat 203 move up and down, that is, adjust the size of the space in the fertilizer storage pipe 202 of the device, so that the device can be conveniently adjusted according to the needs of the device. The amount of fertilizer for quantitative fertilization has better adjustability.

Claims

1. A fertilizing device for a sapodilla tree, characterized in that: comprising a mounting base (1); The mounting seat (1) comprises an inner seat (101) and an outer seat (102), the inner seat (101) being plugged and mounted on the outer seat (102), and the inner seat (101) being connected to the outer seat (102) by means of bolts (1012), a group of fixing seats (103) being threadedly mounted on the outer seat (102), a group of fertilizer delivery pipes (2) being fixedly mounted on the outer end of the mounting seat (1), a group of main material pipes (4) being sleeved and mounted on the outer end of the fertilizer delivery pipes (2), a material tank (401) being mounted on the top of the main material pipes (4), a first air pump (402) being connected to the outer end of the main material pipes (4), a group of vertical fertilizer storage pipes (202) being opened on the fertilizer delivery pipes (2), a group of adjustment seats (203) being threadedly mounted on the bottom of the fertilizer storage pipes (202), the top of the adjustment seats (203) being an italic structure, and the fertilizer storage pipes ( A group of closing plates (204) are rotatably mounted on the bottom of the fertilizer delivery pipe (202), and rotating shafts (2041) are respectively fixed at both ends of the closing plate (204). An air pipe (3) is fixedly mounted on the outer end of the fertilizer delivery pipe (2), and a group of vertical guide tubes (302) are opened on the air pipe (3). A group of rotating rods (303) are rotatably mounted on the bottom of the air pipe (3), and a group of pistons (304) are slidably mounted in the guide tube (302). A connecting rod (3041) is fixed on the bottom of the piston (304), and the bottom of the connecting rod (3041) is transmission-connected to the rotating rod (303), and the rotating rod (303) is transmission-connected to the outer end of the rotating shaft (2041) on the closing plate (204). A group of air delivery seats (5) are plugged and mounted on the outer end of the air pipe (3), and a second air pump (501) is mounted on the air delivery seat (5).

2. A Gleditsia sinensis fertilization device according to claim 1, characterized in that: A group of positioning rods (1011) are fixedly installed at both ends of the inner seat (101), and a group of positioning holes (1022) are opened at both ends of the outer seat (102), and the positioning rods (1011) at both ends of the inner seat (101) are plugged and installed on the positioning holes (1022) at both ends of the outer seat (102).

3. A Gleditsia sinensis fertilizing device according to claim 1, characterized in that: The outer seat (102) is provided with a group of screw holes (1021), the outer end of the fixed seat (103) is fixedly installed with a group of screw rods (1031), and the screw rods (1031) at the outer end of the fixed seat (103) are threadedly installed on the screw holes (1021) of the outer seat (102).

4. A fertilizing device for Gleditsia sinensis according to claim 1, characterized in that: The left end of the fertilizer delivery pipe (2) is an external pipe (201), the left end of the air pipe (3) is an external connecting pipe (301), two adjacent fertilizer delivery pipes (2) are connected together by plugging in an extension pipe, and two adjacent air pipes (3) are connected together by plugging in an extension pipe.

5. A Gleditsia sinensis fertilization device according to claim 1, characterized in that: A set of first synchronous wheels (2042) is fixedly mounted on the outer end of the rotating shaft (2041), a set of second synchronous wheels (3031) is fixedly mounted on the outer end of the rotating rod (303), and the first synchronous wheels (2042) at the outer end of the rotating shaft (2041) and the second synchronous wheels (3031) at the outer end of the rotating rod (303) are connected in transmission via a synchronous belt (2043).

6. A fertilizing device for Gleditsia sinensis according to claim 1, characterized in that: A group of guide grooves (3044) are provided at the right end of the connecting rod (3041), a group of inner guide blocks (3021) are provided at the bottom of the conduit (302), and the guide grooves (3044) at the right end of the connecting rod (3041) are slidably mounted on the inner guide blocks (3021) at the bottom of the conduit (302).

7. A fertilizing device for Gleditsia sinensis according to claim 1, characterized in that: A group of elastic members (3042) is sleeved and installed in the conduit (302), and the top end of the elastic member (3042) is in contact with the bottom surface of the piston (304).

8. A fertilizing device for Gleditsia sinensis according to claim 1, characterized in that: A set of racks (3043) is fixedly mounted on the left end of the connecting rod (3041), a set of gears (3032) is fixedly mounted on the inner end of the rotating rod (303), and the racks (3043) at the left end of the connecting rod (3041) are meshed and transmission-connected with the gears (3032) at the inner end of the rotating rod (303).

9. A fertilizing device for Gleditsia sinensis according to claim 1, characterized in that: The outer end of the adjustment seat (203) is provided with two groups of guide holes (2031), the bottom of the fertilizer delivery pipe (2) is fixedly mounted with two groups of guide rods (205), and the guide holes (2031) at the outer end of the adjustment seat (203) are respectively slidably mounted on the guide rods (205) at the bottom of the fertilizer delivery pipe (2).

10. A fertilizing device for Gleditsia sinensis according to claim 1, characterized in that: A group of threaded holes (2032) are formed at the outer end of the adjustment seat (203); a group of threaded rods (206) are rotatably mounted on the fertilizer delivery pipe (2); and the threaded holes (2032) at the outer end of the adjustment seat (203) are threadedly mounted on the threaded rods (206) of the fertilizer delivery pipe (2).

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