Sampling device for chemical fertilizer production

Abstract

The invention discloses a sampling device for chemical fertilizer production, and relates to the technical field of chemical fertilizer production, the sampling device comprises a handle and a swing assembly, one end of the handle is provided with a fixed pipe, the end part of the fixed pipe is rotatably connected with an end cover, and the swing assembly is arranged outside the fixed pipe; the swinging assembly comprises a motor, a reciprocating lead screw, a sliding seat, a driving plate, a convex block, a sliding frame, a guide plate, a driving column, a rotating seat and a sampling box, the motor is arranged in the grip, and the end part of the motor is connected with the reciprocating lead screw. When a fertilizer finished product is sampled, a small opening is firstly cut in a packaging bag, then a fixing pipe is inserted into the fertilizer bag, at the moment, a motor drives a reciprocating lead screw to rotate, a sliding seat can slide back and forth, a driving plate, a convex block and a sliding frame enable a guide plate to push and pull a driving column, and a rotating seat can drive a sampling box to swing back and forth; therefore, in the sampling process, chemical fertilizer particles at multiple positions can fall into the sampling box to be sampled and collected.

Description

Technical Field

[0001] The invention relates to the technical field of fertilizer production, in particular to a sampling device for fertilizer production. Background Art

[0002] Chemical fertilizers, referred to as fertilizers, are fertilizers made by chemical or physical methods that contain one or more nutrients required for the growth of crops. They are also called inorganic fertilizers, including nitrogen fertilizers, phosphorus fertilizers, potassium fertilizers, trace fertilizers, compound fertilizers, etc. They are not edible. In the process of fertilizer production, sampling devices are needed to sample the finished products for subsequent testing of the samples.

[0003] For example, the patent with publication number CN211347531U discloses a sampling device for finished fertilizer products used in fertilizer production. The patent provides slides connected to the inside of the plug rod on both sides of the sampling slot at the side end of the plug rod, and a slide cover is installed through the slide. When the sampling device needs to take samples, the slide cover is pulled up by hand by the handle, and the slide cover is clamped with the handle through the elastic column to fix the slide cover. There is no need to pull the slide cover continuously during sampling, which saves manpower. After the sampling is completed, the elastic column is pressed and the handle is pushed to cover the slide cover, which can effectively prevent the finished fertilizer from spilling out of the sampling device during the process of taking out the sampling device. The slide slot is connected to the inside of the plug rod, which can effectively prevent the finished fertilizer from blocking the slide slot. The structure is reasonable and simple, and the use effect is better. At present, before sampling the finished fertilizer, it is usually necessary to manually turn the bagged fertilizer several times to mix the fertilizer particles inside to avoid affecting the sampling accuracy, and then insert the sampler into the bagged fertilizer for sampling. However, during the operation, due to the heavy bagged fertilizer, it is more time-consuming and labor-intensive to turn it over several times.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a sampling device for fertilizer production is proposed. Summary of the invention

[0005] The object of the present invention is to provide a sampling device for fertilizer production to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: A sampling device for fertilizer production, comprising a grip and a swing assembly. One end of the grip is provided with a fixed tube, and the end of the fixed tube is rotatably connected with an end cover. The swing assembly is arranged outside the fixed tube. The swing assembly includes a motor, a reciprocating lead screw, a slide seat, a driving plate, a convex block, a sliding frame, a guide plate, a driving column, a rotating seat and a sampling box. A motor is arranged inside the grip, and the end of the motor is connected with a reciprocating lead screw. A slide seat is arranged on the outer side of the reciprocating lead screw, and the end of the slide seat is slidably connected with a driving plate. A convex block is embedded inside the upper end of the driving plate, and a sliding frame is fixed on one side of the convex block. The sliding frame is slidably connected with the fixed tube. Guide plates are arranged on both sides of the sliding frame, and a driving column is slidably connected inside the guide plates. The bottom of the driving column is fixed with a rotating seat, and the end of the rotating seat is connected with a sampling box.

[0007] Further, a sampling assembly is arranged on the upper part of the sampling box. The sampling assembly includes a sampling port, a rotating plate and a rotating shaft. A sampling port is opened at the top of the sampling box, and a rotating plate is arranged inside the sampling port. A rotating shaft is fixed in the middle of the rotating plate, and the rotating shaft is rotatably connected with the sampling box.

[0008] Further, the sampling assembly further includes a first gear, a second gear and a fixed seat. The end of the rotating shaft is connected with a first gear, and a second gear is meshed on one side of the first gear. A fixed seat is fixedly connected inside the second gear. The fixed seat is rotatably connected with the rotating seat, and the fixed seat is fixedly connected with the fixed tube.

[0009] Further, a discharging assembly is connected inside the other end of the grip. The discharging assembly includes a pressing rod, a return spring and a limiting frame. The pressing rod is slidably connected to the top of the grip, and the return spring is slidably connected to the outer side of the pressing rod. A limiting frame is fixed at the bottom of the pressing rod.

[0010] Further, the discharging assembly further includes a sliding column and a pull rod. The sliding column is slidably connected inside the limiting frame, and a pull rod is fixed on one side of the sliding column. The pull rod is in a cross shape, and the pull rod is slidably connected with the fixed tube.

[0011] Further, the discharging assembly further includes a sealing plate and a blocking block. The sealing plate is slidably connected to one side of the sampling box, and a blocking block is fixed on one side of the sealing plate.

[0012] Further, the discharging assembly further includes a sliding rod, a positioning spring and a through hole. A sliding rod is fixed on one side of the blocking block. The sliding rod is slidably connected with the sampling box. A positioning spring is sleeved on the outer side of the sliding rod. Through holes are opened on both sides of the fixed tube.

[0013] Furthermore, a vibration assembly is arranged on the outer side of one end of the fixed tube, and the vibration assembly includes a pressure plate, a convex plate and a knocking plate. The end of the driving plate is fixed with a pressure plate, and one side of the pressure plate is slidably connected with a convex plate, and one side of the convex plate is fixed with a knocking plate.

[0014] Furthermore, the vibration component also includes a bracket, a torsion spring and a hammer head. The middle part of the knocking plate is rotatably connected to the bracket, and torsion springs are arranged at both ends of the bracket. The torsion spring is fixedly connected to the knocking plate, and the end of the knocking plate is arranged with a hammer head.

[0015] Furthermore, an adjustment plate is fixed to one side of the upper end of the pressure rod, and the adjustment plate is slidably connected to the driving plate, a magnet is fixed inside one end of the sliding frame, and a fixed block is provided on one side of the magnet, and the fixed block is fixedly connected to the fixed tube.

[0016] The present invention provides a sampling device for fertilizer production, which has the following beneficial effects:

[0017] 1. When sampling finished fertilizer products, the present invention first cuts a small hole on the packaging bag, and then inserts the fixed tube into the fertilizer bag. At this time, the motor drives the reciprocating screw to rotate, so that the slide seat can slide back and forth, so that the guide plate pushes and pulls the driving column through the driving plate, the protrusion, and the sliding frame, so that the rotating seat drives the sampling box to swing back and forth. Therefore, during the sampling process, fertilizer particles at multiple positions can fall into the sampling box for sampling and collection, and sampling will not be limited to one place to affect the overall sampling effect. Therefore, there is no need to turn over the bagged fertilizer many times before sampling, thereby improving the sampling efficiency. At the same time, the sampling box and the fixed tube can be rotated and folded. Therefore, when sampling, there is no need to cut a large hole in the fertilizer bag to cause more fertilizer particles to spill out.

[0018] 2. In the present invention, when the sampling box swings back and forth in the fertilizer bag, the sampling box will also drive the first gear to roll on the second gear through the rotating shaft. At this time, the fixed seat will limit the rotation of the second gear. Therefore, when the sampling box swings back and forth, the rotating plate can rotate, and the sampling port can be intermittently blocked to avoid too fast material falling in the same place and quickly filling the sampling box to affect the overall sampling effect. In addition, during the sampling process, the sampling box can also mix the internal fertilizer particles by swinging back and forth. At the same time, the continuous rotation of the rotating plate can also prevent the sampling port from being blocked, further improving the overall sampling effect.

[0019] 3. After sampling, the present invention needs to pour the fertilizer particles in the sampling box into the sifter for subsequent sifting by the quartering method. All it takes is to fit all the sampling boxes to the fixed tube first, and then put the fixed tube into the funnel on the top of the sifter. At this time, the end cover will be in an open state under the action of gravity. Then, by pressing the pressure rod, the limit frame will squeeze the slide column, so that the pull rod pushes the block, and the sealing plate can slide to an open state in the sampling box, and the fertilizer particles inside will slide into the fixed tube through the through hole, and then fall into the sifter. Therefore, when unloading, the fertilizer particles in multiple sampling boxes can be quickly poured out, thereby improving the efficiency of unloading, and falling from the end of the fixed tube to avoid spilling to the outside of the sifter.

[0020] 4. When the driving plate of the present invention moves back and forth, it will also drive the pressure plate to squeeze the convex plate, thereby causing the knocking plate to rotate. When the pressure plate is separated from the convex plate, the torsion spring will drive the knocking plate to rotate and reset under the limit of the bracket, so that the hammer head knocks the fixed tube to cause it to vibrate. In the sampling process, vibration is used to reduce the situation of material jamming during the sampling process, and local accumulation of material particles inside the sampling box can be prevented. In the unloading process, after pressing the pressure rod, the adjustment plate will also drive the driving plate to move downward. At this time, the driving plate will be separated from the convex block, thereby not driving the sliding frame to move. The magnet can absorb the iron fixed block to locate the sliding frame. At this time, in the unloading process, when the hammer head knocks the fixed tube, vibration can be used to avoid clogging of fertilizer particles inside the fixed tube. At the same time, the speed at which the material inside the sampling box falls can be accelerated, thereby improving the unloading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a sampling device for fertilizer production according to the present invention;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the fixed pipe part of a sampling device for fertilizer production of the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of a swing assembly part of a sampling device for fertilizer production of the present invention;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of a sampling box of a sampling device for fertilizer production of the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of a discharge assembly of a sampling device for fertilizer production according to the present invention;

[0026] Figure 6 The present invention is a schematic diagram of the three-dimensional structure of a vibration component of a sampling device for fertilizer production.

[0027] In the figure: 1, handle; 2, fixed tube; 3, end cover; 4, swing assembly; 401, motor; 402, reciprocating screw; 403, slide seat; 404, drive plate; 405, bump; 406, slide frame; 407, guide plate; 408, drive column; 409, rotating seat; 410, sampling box; 5, sampling assembly; 501, sampling port; 502, rotating plate; 503, rotating shaft; 504, first gear; 505, second gear; 506 , fixed seat; 6, discharge assembly; 601, pressure rod; 602, return spring; 603, limit frame; 604, slide column; 605, pull rod; 606, sealing plate; 607, stop block; 608, slide rod; 609, positioning spring; 610, through hole; 7, vibration assembly; 701, pressure plate; 702, convex plate; 703, knocking plate; 704, bracket; 705, torsion spring; 706, hammer head; 8, adjustment plate; 9, magnet; 10, fixed block. DETAILED DESCRIPTION

[0028] See also Figures 1 to 6 The present invention provides a technical solution: a sampling device for fertilizer production, including a handle 1 and a swing assembly 4, one end of the handle 1 is provided with a fixed tube 2, and the end of the fixed tube 2 is rotatably connected with an end cap 3, the swing assembly 4 is arranged outside the fixed tube 2, and the swing assembly 4 includes a motor 401, a reciprocating screw 402, a slide 403, a drive plate 404, a convex block 405, a slide frame 406, a guide plate 407, a drive column 408, a rotating seat 409 and a sampling box 410, the motor 401 is arranged inside the handle 1, and the end of the motor 401 is connected with A reciprocating screw 402, a slide 403 is provided on the outer side of the reciprocating screw 402, and the end of the slide 403 is slidably connected to a driving plate 404, a protrusion 405 is embedded inside the upper end of the driving plate 404, and a sliding frame 406 is fixed on one side of the protrusion 405, and the sliding frame 406 is slidably connected to the fixed tube 2, guide plates 407 are arranged on both sides of the sliding frame 406, and the inside of the guide plate 407 is slidably connected to a driving column 408, a rotating seat 409 is fixed to the bottom of the driving column 408, and a sampling box 410 is connected to the end of the rotating seat 409.

[0029] See also Figures 1 to 4, a sampling assembly 5 is provided on the upper part of the sampling box 410, and the sampling assembly 5 includes a sampling port 501, a rotating plate 502 and a rotating shaft 503. The sampling port 501 is opened on the top of the sampling box 410, and the rotating plate 502 is provided inside the sampling port 501. The rotating shaft 503 is fixed in the middle of the rotating plate 502, and the rotating shaft 503 is rotatably connected to the sampling box 410. The sampling assembly 5 also includes a first gear 504, a second gear 505 and a fixed seat 506. The end of the rotating shaft 503 is connected to the first gear 504, and the second gear 505 is meshed on one side of the first gear 504. The fixed seat 506 is fixedly connected inside the second gear 505, and the fixed seat 506 is rotatably connected to the rotating seat 409, and the fixed seat 506 is fixedly connected to the fixed tube 2;

[0030] The specific operation is as follows: first, a small opening is made on one side of the fertilizer bag, and then the fixed tube 2 is inserted into the fertilizer bag, and then the motor 401 is started to drive the reciprocating screw 402 to rotate, so that the slide 403 can slide back and forth, and then the guide plate 407 pushes and pulls the driving column 408 through the driving plate 404, the protrusion 405, and the sliding frame 406, so that the rotating seat 409 can drive the sampling box 410 to swing back and forth. Therefore, during the sampling process, fertilizer particles at multiple positions can fall into the sampling box 410 for sampling and collection, and the sampling will not be limited to one place to affect the overall sampling effect. Therefore, there is no need to turn over the fertilizer bag multiple times before sampling, thereby improving the sampling efficiency and sampling During the process, the sampling box 410 can swing back and forth to mix the internal fertilizer particles. During this process, the sampling box 410 will also drive the first gear 504 to roll on the second gear 505 through the rotating shaft 503. At this time, the fixed seat 506 will limit the rotation of the second gear 505. Therefore, when the sampling box 410 swings back and forth, the rotating plate 502 can rotate, and the sampling port 501 can be intermittently blocked to avoid falling too quickly in the same place and quickly filling the sampling box 410 to affect the overall sampling effect. At the same time, the continuous rotation of the rotating plate 502 can also prevent the sampling port 501 from being blocked, further improving the overall sampling effect.

[0031] See also Figures 2 to 6, the other end of the grip 1 is internally connected with a discharging component 6. The discharging component 6 includes a pressing rod 601, a return spring 602 and a limiting frame 603. The top of the grip 1 is slidably connected with the pressing rod 601, and the outer side of the pressing rod 601 is slidably connected with the return spring 602. And the bottom of the pressing rod 601 is fixed with the limiting frame 603. The discharging component 6 further includes a sliding column 604 and a pull rod 605. The inside of the limiting frame 603 is slidably connected with the sliding column 604, and one side of the sliding column 604 is fixed with the pull rod 605. The pull rod 605 is in a cross shape and is slidably connected with the fixed tube 2. The discharging component 6 further includes a sealing plate 606 and a blocking block 607. One side of the sampling box 410 is slidably connected with the sealing plate 606, and one side of the sealing plate 606 is fixed with the blocking block 607. The discharging component 6 further includes a sliding rod 608, a positioning spring 609 and a through hole 610. One side of the blocking block 607 is fixed with the sliding rod 608, and the sliding rod 608 is slidably connected with the sampling box 410. And the outer side of the sliding rod 608 is sleeved with the positioning spring 609. Through holes 610 are opened on both sides of the fixed tube 2. A vibration component 7 is arranged on the outer side of one end of the fixed tube 2. The vibration component 7 includes a pressing plate 701, a convex plate 702 and a knocking plate 703. The end of the driving plate 404 is fixed with the pressing plate 701, and one side of the pressing plate 701 is slidably connected with the convex plate 702. And one side of the convex plate 702 is fixed with the knocking plate 703. The vibration component 7 further includes a bracket 704, a torsion spring 705 and a hammer head 706. The middle of the knocking plate 703 is rotatably connected with the bracket 704, and the two ends of the bracket 704 are provided with the torsion spring 705. And the torsion spring 705 is fixedly connected with the knocking plate 703. The end of the knocking plate 703 is provided with the hammer head 706. One side of the upper end of the pressing rod 601 is fixed with an adjusting plate 8, and the adjusting plate 8 is slidably connected with the driving plate 404. A magnet 9 is fixed inside one end of the sliding frame 406, and a fixed block 10 is arranged on one side of the magnet 9. And the fixed block 10 is fixedly connected with the fixed tube 2;

[0032] The specific operation is as follows. During the sampling process, the positioning spring 609 will push the stopper 607, and under the guidance of the sliding rod 608, the sealing plate 606 will cover the side opening of the sampling box 410. When the driving plate 404 moves back and forth, it will also drive the pressure plate 701 to squeeze the convex plate 702, so that the knocking plate 703 rotates. When the pressure plate 701 is separated from the convex plate 702, the torsion spring 705 will drive the knocking plate 703 to rotate and reset under the limit of the bracket 704, so that the hammer head 706 knocks the fixed tube 2 to vibrate. In the sampling process, vibration is used to reduce the jamming of the material during the sampling process, and local accumulation of material particles inside the sampling box 410 can be prevented. After the sampling is completed, all the sampling boxes 410 are first fitted with the fixed tube 2, and then the fixed tube 2 is vertically placed in the funnel at the top of the sifter. At this time, the end cover 3 will be opened under the action of gravity, and then the pressure rod is pressed. 601, the limit frame 603 will squeeze the sliding column 604, so that the pull rod 605 pushes the stopper 607, and the sealing plate 606 can slide to the open state in the sampling box 410, and the fertilizer particles inside will slide into the fixed tube 2 through the through hole 610, and then fall into the sifter. Therefore, during unloading, the fertilizer particles inside multiple sampling boxes 410 can be quickly poured out, thereby improving the efficiency of unloading. In the process of pressing the pressure rod 601, the adjustment plate 8 will also drive the driving plate 404 to move downward. At this time, the driving plate 404 will separate from the protrusion 405, thereby not driving the sliding frame 406 to move, and the magnet 9 can absorb the iron fixed block 10 to locate the position of the sliding frame 406. At this time, during the unloading process, when the hammer head 706 hits the fixed tube 2, the vibration can be used to avoid the fertilizer particles inside the fixed tube 2 from being blocked, and the speed of the material falling inside the sampling box 410 can also be accelerated, thereby improving the unloading efficiency.

[0033] In summary, when using the sampling device for fertilizer production, first cut a small hole on one side of a flat fertilizer bag, then hold the handle 1 to insert the fixed tube 2 into the fertilizer bag, and then start the motor 401 to drive the reciprocating screw 402 to rotate, so that the slide 403 can slide back and forth, thereby moving the guide plate 407 through the driving plate 404, the protrusion 405, and the sliding frame 406. The guide plate 407 then drives the driving column 408 to move using the inner inclined groove, so that the rotating seat 409 can drive the sampling box 410 to swing back and forth. Therefore, during the sampling process, fertilizer particles at multiple positions can fall into the sampling box 410 for sampling and collection. In this process, the positioning spring 609 The stopper 607 is pushed, and under the guidance of the slide bar 608, the sealing plate 606 blocks the side opening of the sampling box 410. Secondly, the sampling box 410 drives the first gear 504 to roll on the second gear 505 through the rotating shaft 503. Therefore, when the sampling box 410 swings back and forth, the rotating plate 502 can be rotated to intermittently block the sampling port 501 to avoid the sampling box 410 being filled up too quickly at the same place and affecting the overall sampling effect. Then, when the driving plate 404 moves back and forth, it also drives the pressing plate 701 to squeeze the convex plate 702, so that the knocking plate 703 rotates. When the plate 701 is separated from the convex plate 702, the torsion spring 705 will drive the knocking plate 703 to rotate and reset under the limit of the bracket 704, so that the hammer head 706 knocks the fixed tube 2 to make it vibrate, so as to use the vibration to reduce the jamming of the material during the sampling process. Then, after the sampling is completed, the fertilizer particles in the sampling box 410 need to be poured into the sieve for subsequent sieving by the quartering method. First, all the sampling boxes 410 are fitted with the fixed tube 2, and then the fixed tube 2 is vertically placed in the funnel at the top of the sieve. At this time, the end cover 3 will be opened under the action of gravity, and then the pressure rod 601 is pressed, and the limit frame 603 will squeeze the slide column 604, so that the pull rod 605 pushes the stopper 607, so that the sealing plate 606 can slide to the open state in the sampling box 410, and the fertilizer particles inside will slide into the fixed tube 2 through the through hole 610, and then fall into the sifter. Finally, after pressing the pressure rod 601, the adjustment plate 8 will also drive the driving plate 404 to move downward. At this time, the driving plate 404 will be separated from the protrusion 405, so as not to drive the sliding frame 406 to move, and the magnet 9 can absorb the iron fixed block 10 to locate the position of the sliding frame 406. At this time, during the unloading process, when the hammer head 706 hits the fixed tube 2, the vibration can be used to avoid the fertilizer particles inside the fixed tube 2 from being blocked.

[0034] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A sampling device for fertilizer production, characterized in that: The invention comprises a handle (1) and a swing assembly (4), wherein a fixed tube (2) is arranged at one end of the handle (1), and the end of the fixed tube (2) is rotatably connected to an end cover (3), and the swing assembly (4) is arranged outside the fixed tube (2), and the swing assembly (4) comprises a motor (401), a reciprocating screw (402), a slide seat (403), a drive plate (404), a convex block (405), a slide frame (406), a guide plate (407), a drive column (408), a rotating seat (409) and a sampling box (410), and the motor (401) is arranged inside the handle (1), and the end of the motor (401) is connected to the reciprocating screw (402). A slide seat (403) is arranged on the outer side of the reciprocating screw (402), and the end of the slide seat (403) is slidably connected to a driving plate (404), a protrusion (405) is embedded inside the upper end of the driving plate (404), and a sliding frame (406) is fixed on one side of the protrusion (405), and the sliding frame (406) is slidably connected to the fixed tube (2), guide plates (407) are arranged on both sides of the sliding frame (406), and a driving column (408) is slidably connected inside the guide plate (407), a rotating seat (409) is fixed at the bottom of the driving column (408), and a sampling box (410) is connected to the end of the rotating seat (409).

2. A sampling device for fertilizer production according to claim 1, characterized in that: A sampling assembly (5) is arranged on the upper part of the sampling box (410), and the sampling assembly (5) comprises a sampling port (501), a rotating plate (502) and a rotating shaft (503). The sampling box (410) is provided with a sampling port (501) on the top, and a rotating plate (502) is arranged inside the sampling port (501). A rotating shaft (503) is fixed in the middle of the rotating plate (502), and the rotating shaft (503) is rotatably connected to the sampling box (410).

3. A sampling device for fertilizer production according to claim 2, characterized in that: The sampling assembly (5) further comprises a first gear (504), a second gear (505) and a fixed seat (506); the end of the rotating shaft (503) is connected to the first gear (504), and one side of the first gear (504) is meshed with the second gear (505); the interior of the second gear (505) is fixedly connected to the fixed seat (506), and the fixed seat (506) is rotatably connected to the rotating seat (409), and the fixed seat (506) is fixedly connected to the fixed tube (2).

4. A sampling device for fertilizer production according to claim 1, characterized in that: The other end of the handle (1) is internally connected to a discharge assembly (6), and the discharge assembly (6) comprises a pressure rod (601), a return spring (602) and a limit frame (603). The top of the handle (1) is slidably connected to the pressure rod (601), and the outer side of the pressure rod (601) is slidably connected to the return spring (602), and the bottom of the pressure rod (601) is fixed with the limit frame (603).

5. A sampling device for fertilizer production according to claim 4, characterized in that: The discharging assembly (6) further includes a sliding column (604) and a pull rod (605). The sliding column (604) is slidably connected inside the limiting frame (603), and a pull rod (605) is fixed to one side of the sliding column (604). The pull rod (605) is in a cross shape and is slidably connected to the fixed pipe (2).

6. A sampling device for fertilizer production according to claim 5, characterized in that: The discharging assembly (6) further includes a sealing plate (606) and a stopper (607). The sealing plate (606) is slidably connected to one side of the sampling box (410), and a stopper (607) is fixed to one side of the sealing plate (606).

7. A sampling device for fertilizer production according to claim 6, characterized in that: The discharging assembly (6) further includes a sliding rod (608), a positioning spring (609) and a through hole (610). A sliding rod (608) is fixed to one side of the stopper (607), and the sliding rod (608) is slidably connected to the sampling box (410). A positioning spring (609) is sleeved on the outer side of the sliding rod (608). Through holes (610) are formed on both sides of the fixed pipe (2).

8. A sampling device for fertilizer production according to claim 1, characterized in that: A vibration assembly (7) is arranged on the outer side of one end of the fixed pipe (2). The vibration assembly (7) includes a pressing plate (701), a convex plate (702) and a knocking plate (703). The pressing plate (701) is fixed to the end of the driving plate (404), the convex plate (702) is slidably connected to one side of the pressing plate (701), and a knocking plate (703) is fixed to one side of the convex plate (702).

9. A sampling device for fertilizer production according to claim 8, characterized in that: The vibration assembly (7) further includes a bracket (704), a torsion spring (705) and a hammer head (706). The middle part of the knocking plate (703) is rotatably connected to the bracket (704), torsion springs (705) are arranged at both ends of the bracket (704), and the torsion springs (705) are fixed to the knocking plate (703). The hammer head (706) is arranged at the end of the knocking plate (703).

10. A sampling device for fertilizer production according to claim 4, characterized in that: One side of the upper end of the pressing rod (601) is fixed with an adjusting plate (8), and the adjusting plate (8) is slidably connected to the driving plate (404). A magnet (9) is fixed inside one end of the sliding frame (406), a fixed block (10) is arranged on one side of the magnet (9), and the fixed block (10) is fixed to the fixed pipe (2).

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