A sterile sealed sampling device and method for agricultural product testing

Abstract

The present invention provides an aseptic sealed sampling device and method for agricultural product detection, which belongs to the technical field of agricultural product sampling. An aseptic sealed sampling device for agricultural product detection includes a conveying platform, a material receiving plate, a vertical plate 1, a top plate, a vertical plate 2, an open material receiving cavity, a material pushing mechanism, a sampling slot, a sampling tube and a liquid receiving part; the present invention controls the conveyor belt and the concave push rack through a level detector to realize the automatic sampling of the melon. When the melon reaches the specified position, the conveyor belt stops, and the concave push rack pushes the melon to a fixed position. Subsequently, the sampling tube rises along the sampling slot and inserts the melon, so that the juice flows into the liquid receiving part. This process does not require manual melon cutting or complicated operations, which not only simplifies the sampling steps, but also maintains the integrity of the melon, effectively avoids contamination, and ensures the accuracy and reliability of sampling. This automatic sampling method improves efficiency, reduces human errors, and is suitable for occasions requiring a large number of samples.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural product sampling, and in particular to a sterile sealed sampling device and method for agricultural product detection. Background Art

[0002] Muskmelon is a popular agricultural product. Due to different planting and fertilization conditions, the sweetness and nutritional content of the melons vary. In order to ensure the accuracy of the classification of the quality of the melons, large agricultural product suppliers usually sample the juice of the melons before packing them.

[0003] However, in the traditional sampling process, on the packaging line, inspectors need to select cantaloupe from the conveyor at regular intervals or in batches, then use a blade to cut the melon to remove the pulp, use a syringe to absorb the juice from the surface of the pulp and the opening of the melon, and inject it into a test tube for later use. For large batches, this method is not only cumbersome to operate, but also requires a lot of manpower. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a sterile sealed sampling device and method for agricultural product testing that can overcome the above problems or at least partially solve the above problems.

[0005] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a sterile sealed sampling device for agricultural product testing, including a conveying platform, a material receiving plate fixedly connected to the conveying platform, a pair of vertical plates 1 fixedly connected to the material receiving plate, a top plate fixedly connected between the tops of the two vertical plates 1, a vertical plate 2 fixedly connected between the top plate, the material receiving plate and the two opposite sides of the vertical plates 1, an open material receiving cavity is formed under the connection of the two vertical plates 1, the top plate and the vertical plates 2, a pushing mechanism corresponding to the open material receiving cavity is provided on the conveying platform, and also includes a sampling groove opened on the material receiving plate and connected to the open material receiving cavity, a sampling tube corresponding to the open material receiving cavity and capable of being raised and lowered is provided below the material receiving plate, an inclined opening is provided at one end of the sampling tube corresponding to the open material receiving cavity, and a detachable liquid receiving part is connected to the other end of the sampling tube.

[0006] Preferably, a concave groove is provided at the top of the conveying platform, a conveyor belt which is consistent with the top of the conveying platform is rotatably provided between the inner walls of the concave groove, and a plurality of vertical support rods are fixedly connected to the bottom of the conveying platform.

[0007] Preferably, the pushing mechanism includes an L-shaped mounting frame fixedly connected to the top of the conveyor platform, and a level detector corresponding to the position above the conveyor belt is installed on the L-shaped mounting frame. A wire is connected to the level detector, and the other end of the wire is electrically connected to a driving unit 1 installed on one side of the L-shaped mounting frame, and the output end of the driving unit 1 is fixedly connected to a concave pushing frame that fits the surface of the conveyor platform.

[0008] Preferably, a driving unit 2 is installed at the bottom of the receiving plate, and an output end of the driving unit 2 is fixedly connected to an L-shaped movable frame. The sampling tube is detachably connected to the L-shaped movable frame. When the concave pushing frame pushes the agricultural products on the conveyor belt into the open receiving cavity and conflicts with the vertical plate 2, the sampling tube can be stably inserted into the agricultural products for sampling.

[0009] Preferably, an externally threaded annular block is fixedly connected to the surface of the sampling tube, and an internal connecting ring threadedly connected along the surface of the externally threaded annular block is fixedly connected to the top wall of the L-shaped movable frame.

[0010] Preferably, when the L-shaped movable frame drives the sampling tube to rise, a resistance structure for pressing the agricultural products entering the open material receiving cavity is provided on the top plate.

[0011] Preferably, the interference structure includes a connecting cylinder fixedly connected to the top plate, the inner wall of the connecting cylinder is fitted with a moving block, the bottom of the moving block is fixedly connected to a interference rod, the surface of the interference rod is sleeved with a spring located between the moving block and the bottom wall of the connecting cylinder, one end of the interference rod passes through the bottom of the connecting cylinder and is fixedly connected to a pressure plate, the top of the connecting cylinder is connected to an air guide pipe, the other end of the air guide pipe is connected to an air cylinder fixedly connected to a surface of the vertical plate, the inner wall of the air cylinder is fitted with a circular block, the bottom of the circular block is fixedly connected to an L-shaped push rod, and one end of the L-shaped push rod passes through the bottom of the air cylinder and is fixedly connected to the L-shaped moving frame.

[0012] Preferably, the liquid receiving part comprises a liquid storage cylinder arranged in front of the side wall of the L-shaped movable frame, the top of the liquid storage cylinder is connected to a liquid receiving hose with a control valve, and the other end of the liquid receiving hose is connected to a liquid receiving head threaded along the inner wall of the sampling tube.

[0013] Preferably, a limiting ring is sleeved on the liquid storage cylinder, an extension plate is fixedly connected between the limiting ring and the side wall of the L-shaped movable frame, and a plurality of contact blocks distributed in a circle and all fitted on the top of the limiting ring are fixedly connected to the surface of the liquid storage cylinder.

[0014] The present invention also provides a method for aseptically sealing and sampling agricultural products, comprising:

[0015] Step S1, placing agricultural products on a conveying platform for conveying;

[0016] Step S2, when the position of the agricultural products delivered to the pushing mechanism is detected by the pushing mechanism, the pushing mechanism pushes the agricultural products into the open receiving cavity formed between the vertical plate 1, the top plate and the vertical plate 2, so that the agricultural products are pressed between the pushing mechanism and the vertical plate 2;

[0017] Step S3: Subsequently, the sampling tube slides along the inner wall of the sampling groove and is inserted into the agricultural product to obtain juice and enter the liquid receiving part.

[0018] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: when the present invention detects through the level detector that the melon transported on the conveyor belt reaches the corresponding position of the concave push rack, it will send a signal to the driving part 1 and the driving mechanism controlling the conveyor belt. After receiving the signal, the conveyor belt driving mechanism stops transmission, and the driving part 1 drives the concave push rack to slowly push the melon to the open material receiving cavity along the surface of the conveyor belt until the melon is fixed between the vertical plate 2 and the concave push rack. Subsequently, the mechanism connected to the sampling tube is started, and the sampling tube rises along the inner wall of the sampling groove and is inserted into the melon, so that the juice inside the melon flows into the liquid receiving part through the sampling tube, which not only saves the tedious steps of manually cutting the melon to take the pulp, and avoids the complicated operation of sucking the juice with a syringe, but also effectively avoids contamination because the melon remains intact during the sampling process, thereby ensuring the accuracy and reliability of sampling;

[0019] At the same time, the device can not only facilitate sampling of the melon, but also, while driving the sampling tube to penetrate into the melon for sampling, first drive the V-shaped auxiliary limiting rod to penetrate into the melon to position and limit the melon, and then drive the pressure plate to limit the melon from top to bottom, and the auxiliary limiting rod can also increase the sampling speed of the sampling tube, thereby effectively improving the overall performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the overall structure of a sterile sealed sampling device for agricultural product testing provided by the present invention;

[0021] Figure 2 A schematic diagram of the side structure of a sterile sealed sampling device for agricultural product testing provided by the present invention;

[0022] Figure 3 For the present invention Figure 1 Schematic diagram of the connection structure between the middle material plate, the first vertical plate, the second vertical plate and the top plate;

[0023] Figure 4 For the present invention Figure 3 Structural diagram of the middle vertical plate 2;

[0024] Figure 5 For the present invention Figure 3 A schematic diagram of the cross-sectional structure of the sampling tube;

[0025] Figure 6 For the present invention Figure 5 A schematic diagram of the partially enlarged structure at center A;

[0026] Figure 7 For the present invention Figure 3 Schematic diagram of the explosion connection structure between the middle liquid connection head and the sampling tube;

[0027] Figure 8 For the present invention Figure 5 A schematic diagram of the partially enlarged structure at B in the middle;

[0028] Fig. 9 A schematic structural diagram of an auxiliary limiting rod, a baffle and an air hole of a sterile sealed sampling device for agricultural product testing provided by the present invention.

[0029] In the figure: 1, conveying platform; 11, concave groove; 12, conveyor belt; 13, vertical support rod; 2, receiving plate; 21, vertical plate 1; 22, top plate; 23, vertical plate 2; 231, discharge port; 232, electric closed door; 24, open receiving cavity; 25, sampling slot; 26, sampling tube; 27, inclined port; 28, external threaded ring block; 3, pushing mechanism; 31, L-shaped mounting frame; 32, level detector; 33, wire; 34, driving unit 1; 35, concave push frame; 4, driving unit 2; 41, L-shaped moving frame; 4 2. Inner connecting ring; 5. Connecting cylinder; 51. Moving block; 52. Resistance rod; 53. Spring; 54. Pressure plate; 55. Air guide tube; 56. Air delivery cylinder; 57. Round block; 58. L-shaped push rod; 6. Liquid storage cylinder; 61. Liquid receiving hose; 62. Liquid receiving head; 63. Limiting ring; 64. Extension plate; 65. Contact block; 7. Mounting cylinder; 71. Piston rod; 72. Return spring; 73. Baffle; 74. Auxiliary limiting rod; 75. Air hole; 8. Three-way pipe; 81. Overflow valve; 82. Return pipe; 83. One-way valve. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0031] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0032] In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] Reference Figure 1-Figure 9 A sterile sealed sampling device for agricultural product inspection comprises a conveying platform 1, a concave groove 11 is provided on the top of the conveying platform 1, a conveying belt 12 which is rotatably provided between the inner walls of the concave groove 11 and is consistent with the top of the conveying platform 1, a plurality of vertical support rods 13 are fixedly connected to the bottom of the conveying platform 1, a receiving plate 2 is fixedly connected to the conveying platform 1, a pair of vertical plates 21 are fixedly connected to the receiving plate 2, a top plate 22 is fixedly connected between the tops of the two vertical plates 21, a vertical plate 23 is fixedly connected between the top plate 22, the receiving plate 2 and the opposite sides of the two vertical plates 21, an open receiving cavity 24 is formed on the receiving plate 2 under the connection of the two vertical plates 21, the top plate 22 and the vertical plate 23, and a pushing mechanism corresponding to the open receiving cavity 24 is provided on the conveying platform 1. 3. The pushing mechanism 3 includes an L-shaped mounting frame 31 fixedly connected to the top of the conveying platform 1, a level detector 32 corresponding to the top of the conveying belt 12 is installed on the L-shaped mounting frame 31, a wire 33 is connected to the level detector 32, the other end of the wire 33 is electrically connected to a driving part 34 installed on one side of the L-shaped mounting frame 31, the output end of the driving part 34 is fixedly connected to a concave pushing frame 35 that fits the surface of the conveying platform 1, and also includes a sampling groove 25 opened on the receiving plate 2 and connected to the open receiving cavity 24, a sampling tube 26 corresponding to the open receiving cavity 24 and capable of being raised and lowered is provided under the receiving plate 2, an inclined opening 27 is provided at one end of the sampling tube 26 corresponding to the open receiving cavity 24, and a detachable liquid receiving part is connected to the other end of the sampling tube 26.

[0034] In the above technical scheme, when the level detector 32 detects that the melon transported on the conveyor belt 12 is located at the position corresponding to the concave push rack 35, the level detector 32 will simultaneously feed back the signal to the drive unit 34 using the cylinder and the drive mechanism for controlling the conveyor belt 12. At this time, after receiving the signal, the drive mechanism for controlling the conveyor belt 12 will stop the conveying of the conveyor belt 12, and after receiving the signal, the drive unit 34 using the cylinder will drive the concave push rack 35 to slowly push the melon along the surface of the conveyor belt 12 to the open material receiving cavity 24 until the melon hits between the vertical plate 23 and the concave push rack 35, and the drive unit 34 will stop. Finally, the corresponding mechanism connected to the sampling tube 26 will be started, so that the sampling tube 26 rises along the inner wall of the sampling groove 25 and is inserted into the cantaloupe. In this way, the juice inside the cantaloupe will flow into the liquid receiving part through the internal pipeline of the sampling tube 26. The adoption of such a technical solution not only saves the tedious steps of manually cutting the cantaloupe with a blade to take out the pulp, but also avoids the complicated operation of sucking the juice on the surface of the pulp and the opening of the cantaloupe through a syringe. More importantly, since the cantaloupe remains intact and is not cut during the entire sampling process, the contamination problem is effectively avoided, and the accuracy and reliability of the sampling are also ensured.

[0035] It should be noted that when the melons are transported on the conveyor belt 12 for sampling, the present technical solution adopts a timed sampling method, and there is no need to sample each melon. It is only necessary to pre-set the parameters of the level detector 32 to automatically detect and push the melons at the specified position into the sampling area, thereby realizing automatic sampling. This method not only improves the sampling efficiency, but also effectively reduces human errors. As for the specific model of the level detector 32, you can choose a common radar level meter on the market, or other models that can meet the needs.

[0036] Reference Figure 3-Figure 5 and Figure 7 In order to facilitate the discharge of the melons from the open receiving chamber 24 after the sampling of the melons is completed, a discharge port 231 is also designed on the vertical plate 23, and a matching electric closed door 232 is installed between the inner walls of the discharge port 231. When the sampling of the melons is completed, the electric closed door 232 will open, and then the driving part 1 34 will drive the concave push frame 35 to continue to move, and the melons that have been sampled will be pushed out of the discharge port 231 to the external collection component. This design not only realizes automatic sampling, but also ensures that the sampled melons can be discharged and collected smoothly and orderly, reducing manual intervention and further improving the efficiency and convenience of the entire sampling process.

[0037] Reference Figure 1-Figure 5In order to realize the lifting and lowering of the sampling tube 26 in the above technical solution, a driving part 24 is installed at the bottom of the receiving plate 2, and an L-shaped moving frame 41 is fixedly connected to the output end of the driving part 24. The sampling tube 26 is detachably connected to the L-shaped moving frame 41. When the concave pushing frame 35 pushes the agricultural products on the conveyor belt 12 into the open receiving cavity 24 and conflicts with the vertical plate 23, the sampling tube 26 can be stably inserted into the agricultural products for sampling. Since the sampling tube 26 is vertically connected to the L-shaped moving frame 41 and vertically corresponds to the sampling groove 25, when the driving part 24 of the cylinder drives the L-shaped moving frame 41 to rise, the sampling tube 26 will slide along the inner wall of the sampling groove 25, and be inserted into the inside of the melon through the inclined mouth 27 designed for the sampling tube 26, so that the juice inside the melon enters the liquid receiving part under the guidance of the sampling tube 26.

[0038] Reference Figure 6 In order to facilitate the subsequent replacement of the sampling tube 26, an externally threaded ring block 28 is fixedly connected to the surface of the sampling tube 26, and an internal connecting ring 42 threaded along the surface of the externally threaded ring block 28 is fixedly connected to the top wall of the L-shaped movable frame 41. When disassembling, the liquid contact part is first removed from the bottom end of the sampling tube 26, and then the externally threaded ring block 28 on the sampling tube 26 is rotated along the internal connecting ring 42 until the externally threaded ring block 28 is separated from the internal connecting ring 42, and the sampling tube 26 can be removed from the L-shaped movable frame 41 for replacement.

[0039] Reference Figure 3-Figure 7 The liquid receiving part includes a liquid storage cylinder 6 arranged in front of the side wall of the L-shaped movable frame 41, the top of the liquid storage cylinder 6 is connected to a liquid receiving hose 61 with a control valve, the other end of the liquid receiving hose 61 is connected to a liquid receiving head 62 threadedly connected along the inner wall of the sampling tube 26, a limiting ring 63 is sleeved on the liquid storage cylinder 6, and an extension plate 64 is fixedly connected between the limiting ring 63 and the side wall of the L-shaped movable frame 41, and a plurality of contact blocks 65 distributed in a circle and all fitted on the top of the limiting ring 63 are fixedly connected to the surface of the liquid storage cylinder 6. When the sampling tube 26 is inserted into the inside of the cantaloupe, the juice inside the cantaloupe will flow into the liquid receiving head 62 through the sampling tube 26. In the liquid receiving hose 61, the control valve on the liquid receiving hose 61 should be in an open state at this time, and then the liquid flows into the liquid storage cylinder 6. Finally, when the liquid receiving part needs to be removed from the bottom end of the sampling tube 26, the control valve on the liquid receiving hose 61 should be closed, and the liquid receiving head 62 should be rotated to disengage from the sampling tube 26, so that the liquid storage cylinder 6 can be pulled out of the limiting ring 63 for subsequent detection (it should be understood that since the liquid receiving hose 61 is made of soft material, the liquid receiving head 62 can be pulled out first, and then the liquid storage cylinder 6 can be taken out of the limiting ring 63; secondly, the control valve on the liquid receiving hose 61 can adopt a manual ball valve that is manually closed).

[0040] Reference Figure 3-Figure 8On the basis of the above technical solution, further, when the L-shaped moving frame 41 drives the sampling tube 26 to rise, a resistance structure for pressing the agricultural products entering the open receiving chamber 24 is provided on the top plate 22, and the resistance structure includes a connecting tube 5 fixedly connected to the top plate 22, the inner wall of the connecting tube 5 is fitted with a moving block 51, and the bottom of the moving block 51 is fixedly connected with a resistance rod 52, and the surface of the resistance rod 52 is sleeved with a spring 53 fixedly connected between the moving block 51 and the bottom wall of the connecting tube 5, and the resistance rod 52 passes through the bottom of the connecting tube 5. One end is fixedly connected to a pressing plate 54, and the top of the connecting tube 5 is connected to an air guide pipe 55, and the other end of the air guide pipe 55 is connected to an air delivery cylinder 56 fixedly connected to the surface of the vertical plate 21, and the inner wall of the air delivery cylinder 56 is fitted with a circular block 57, and the bottom of the circular block 57 is fixedly connected to an L-shaped push rod 58. The L-shaped push rod 58 passes through one end of the bottom of the gas cylinder 56 and is fixedly connected to the L-shaped moving frame 41. With such a technical solution, the sampling tube 26 on the L-shaped moving frame 41 can be driven by the driving part 24 of the cylinder to insert into the inside of the melon to obtain juice. The L-shaped push rod 58 fixed on the L-shaped moving frame 41 will drive the circular block 57 to slide along the inner wall of the gas cylinder 56. This action allows the gas inside the gas cylinder 56 to enter the connecting tube 5 through the air guide tube 55, thereby pushing the moving block 51 to compress the spring 53. During this process, the moving block 51 applies pressure to the resistance rod 52, causing the resistance rod 52 to drive the pressing plate 54 to press the melon that has entered the open material receiving chamber 24. In this way, under the multiple resistances of the concave push frame 35, the vertical plate 23 and the pressing plate 54, the sampling tube 26 can be more smoothly inserted into the inside of the melon for liquid extraction.

[0041] Reference Fig. 9 , further, a mounting cylinder 7 is symmetrically mounted on the top plate 22, and the symmetrical mounting cylinder 7 is arranged in a V shape. A piston rod 71 is slidably connected in the mounting cylinder 7, and the piston rod 71 is connected to the mounting cylinder 7 through a return spring 72. A baffle 73 is mounted on one end of the piston rod 71 that passes through the outside of the mounting cylinder 7, and an auxiliary limiting rod 74 is mounted on the baffle 73. The mounting cylinder 7 is connected to the gas delivery cylinder 56, and the auxiliary limiting rod 74 is also V-shaped;

[0042] When one end of the sampling tube 26 is inserted into the melon, the L-shaped push rod 58 pushes the gas in the gas delivery cylinder 56 into the installation cylinder 7 first, so that the piston rod 71 moves downward, and the auxiliary limiting rod 74 presses against the melon on the receiving plate 2, and then more gas is filled into the connecting cylinder 5 to push the pressing plate 54 to press the top of the melon, so that when the sampling tube 26 is inserted into the melon, the melon can be positioned and fixed to avoid skewing or tilting, which makes the sampling tube 26 unable to be inserted into the effective position of the melon for sampling, and the symmetrical auxiliary limiting rod 74 is V-shaped, which makes the positioning effect of the melon better;

[0043] Furthermore, the middle of the auxiliary limiting rod 74 is hollow and the front end is sharp. At the same time, an air hole 75 is opened at the auxiliary limiting rod 74 near the baffle 73. When the gas pushes the piston rod 71 to approach the melon, one end of the auxiliary limiting rod 74 penetrates into the melon, further improving the fixing and positioning effect of the melon, and avoiding shaking and skewing when the sampling tube 26 penetrates into the melon.

[0044] At the same time, when the auxiliary limiting rod 74 is inserted into the cantaloupe, the length of the auxiliary limiting rod 74 inserted into the cantaloupe can be limited by the shielding of the baffle 73, and the air hole 75 can be exposed, so that the air pressure in the cantaloupe is balanced with the outside, which makes the juice flow into the liquid storage cylinder 6 faster, which is conducive to improving the sampling efficiency and quality;

[0045] The V-shaped auxiliary limiting rod 74 is inserted into the melon, which can further improve the stability of the melon when sampling;

[0046] It should be understood that, in the present embodiment, the width of the pressing plate 54 is smaller than the width between the two after the auxiliary limiting rod 74 is extended, so as to prevent the pressing plate 54 from colliding with the auxiliary limiting rod 74 .

[0047] A three-way pipe 8 is installed on the air guide pipe 55, wherein the two ends of the three-way pipe 8 are respectively connected to the installation cylinder 7, and an overflow valve 81 is installed on the air guide pipe 55 between the three-way pipe 8 and the connecting cylinder 5. The air guide pipe 55 between the three-way pipe 8 and the connecting cylinder 5 is connected to the air guide pipe 55 near the gas cylinder 56 through a return pipe 82, and a one-way valve 83 is installed on the return pipe 82. When the L-shaped push rod 58 moves upward to squeeze the gas in the gas cylinder 56, the gas will first enter the installation cylinder 7 through the three-way pipe 8, and then the gas exceeding the threshold of the overflow valve 81 will enter the connecting cylinder 5, thereby achieving the effect of first moving the piston rod 71 and then moving the resistance rod 52;

[0048] When the L-shaped push rod 58 is reset, the gas in the installation tube 7 flows back to the gas cylinder 56 through the three-way pipe 8, and the gas in the connecting tube 5 returns to the gas cylinder 56 through the reflux pipe 82. The reset spring 72 pushes the piston rod 71 to reset, so that the auxiliary limit rod 74 is pulled out of the melon.

[0049] Therefore, the present device can not only facilitate sampling of the cantaloupe, but also, while driving the sampling tube 26 to penetrate into the cantaloupe for sampling, first drive the V-shaped auxiliary limiting rod 74 to penetrate into the cantaloupe to position and limit the cantaloupe, and then drive the pressing plate 54 to limit the cantaloupe from top to bottom. The auxiliary limiting rod 74 can also increase the sampling speed of the sampling tube 26, thereby effectively improving the overall performance of the present device.

[0050] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the present invention, and all of them belong to the protection scope of the present invention.

Claims

1. A sterile sealed sampling device for agricultural product testing, characterized in that: include: Conveyor platform (1); The conveying platform (1) is fixedly connected with a receiving plate (2), the receiving plate (2) is fixedly connected with a pair of vertical plates (21), a top plate (22) is fixedly connected between the tops of the two vertical plates (21), a vertical plate (23) is fixedly connected between the top plate (22), the receiving plate (2) and the opposite sides of the two vertical plates (21), the receiving plate (2) forms an open receiving cavity (24) under the connection of the two vertical plates (21), the top plate (22) and the vertical plate (23), and the conveying platform (1) is provided with a pushing mechanism (3) corresponding to the open receiving cavity (24); and further comprises: A sampling groove (25) is provided on the material receiving plate (2) and is connected to the open material receiving cavity (24). A sampling tube (26) corresponding to the open material receiving cavity (24) and capable of being raised and lowered is provided below the material receiving plate (2). An inclined opening (27) is provided at one end of the sampling tube (26) corresponding to the open material receiving cavity (24). The other end of the sampling tube (26) is connected to a detachable liquid receiving part.

2. The aseptic sealed sampling device for agricultural product detection according to claim 1, characterized in that: The top of the conveying platform (1) is provided with a concave groove (11), between the inner walls of the concave groove (11) a conveyor belt (12) which is consistent with the top of the conveying platform (1) is rotatably provided, and the bottom of the conveying platform (1) is fixedly connected with a plurality of vertical support rods (13).

3. The aseptic sealed sampling device for agricultural product detection according to claim 2, characterized in that: The pushing mechanism (3) comprises an L-shaped mounting frame (31) fixedly connected to the top of the conveying platform (1), a level detector (32) corresponding to the position above the conveying belt (12) being mounted on the L-shaped mounting frame (31), a wire (33) being connected to the level detector (32), the other end of the wire (33) being electrically connected to a driving unit (34) mounted on one side of the L-shaped mounting frame (31), and an output end of the driving unit (34) being fixedly connected to a concave pushing frame (35) in contact with the surface of the conveying platform (1).

4. The aseptic sealed sampling device for agricultural product detection according to claim 3, characterized in that: A second driving part (4) is installed at the bottom of the receiving plate (2); an output end of the second driving part (4) is fixedly connected to an L-shaped movable frame (41); the sampling tube (26) is detachably connected to the L-shaped movable frame (41); when the concave pushing frame (35) pushes the agricultural products on the conveyor belt (12) into the open receiving cavity (24) and contacts the second vertical plate (23), the sampling tube (26) can be stably inserted into the agricultural products for sampling.

5. The aseptic sealed sampling device for agricultural product detection according to claim 4, characterized in that: An external threaded ring block (28) is fixedly connected to the surface of the sampling tube (26), and an internal connection ring (42) threadedly connected along the surface of the external threaded ring block (28) is fixedly connected to the top wall of the L-shaped movable frame (41).

6. The aseptic sealed sampling device for agricultural product detection according to claim 4, characterized in that: When the L-shaped moving frame (41) drives the sampling tube (26) to rise, a resistance structure for pressing the agricultural products entering the open material receiving cavity (24) is provided on the top plate (22).

7. The aseptic sealed sampling device for agricultural product detection according to claim 6, characterized in that: The resistance structure comprises a connecting tube (5) fixedly connected to the top plate (22); a moving block (51) is attached to the inner wall of the connecting tube (5); a resistance rod (52) is fixedly connected to the bottom of the moving block (51); a spring (53) is sleeved on the surface of the resistance rod (52) and is fixedly connected between the moving block (51) and the bottom wall of the connecting tube (5); one end of the resistance rod (52) that passes through the bottom of the connecting tube (5) is fixedly connected to a pressure plate ( 54), the top of the connecting tube (5) is connected to an air guide tube (55), the other end of the air guide tube (55) is connected to an air delivery cylinder (56) fixedly connected to the surface of the vertical plate (21), the inner wall of the air delivery cylinder (56) is fitted with a circular block (57), the bottom of the circular block (57) is fixedly connected to an L-shaped push rod (58), and one end of the L-shaped push rod (58) passes through the bottom of the air delivery cylinder (56) and is fixedly connected to the L-shaped movable frame (41).

8. The aseptic sealed sampling device for agricultural product detection according to claim 4, characterized in that: The liquid receiving part comprises a liquid storage cylinder (6) arranged in front of the side wall of the L-shaped movable frame (41); the top of the liquid storage cylinder (6) is connected to a liquid receiving hose (61) with a control valve; the other end of the liquid receiving hose (61) is connected to a liquid receiving head (62) threadedly connected along the inner wall of the sampling tube (26).

9. The aseptic sealed sampling device for agricultural product detection according to claim 8, characterized in that: A limiting ring (63) is sleeved on the liquid storage cylinder (6), an extension plate (64) is fixedly connected between the limiting ring (63) and the side wall of the L-shaped movable frame (41), and a plurality of contact blocks (65) distributed in a circumference and all abutting on the top of the limiting ring (63) are fixedly connected to the surface of the liquid storage cylinder (6).

10. A method for aseptically sealed sampling of agricultural products, applied to the aseptically sealed sampling device for agricultural products as claimed in claim 1, characterized in that: include: Step S1, placing agricultural products on a conveying platform (1) for conveying; Step S2, when the position where the agricultural products are transported to the pushing mechanism (3) is detected by the pushing mechanism (3), the pushing mechanism (3) pushes the agricultural products into the open receiving cavity (24) formed between the first vertical plate (21), the top plate (22) and the second vertical plate (23), so that the agricultural products are pressed between the pushing mechanism (3) and the second vertical plate (23); Step S3: Subsequently, the sampling tube (26) slides along the inner wall of the sampling groove (25) and is inserted into the interior of the agricultural product to obtain juice and enter the liquid receiving part.

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