Agricultural product testing sample processing device

By designing an agricultural product detection sample processing device with a motor-driven gear system and circulating eluent, the problems of water pump blockage and inconvenient fixation of the filter cartridge caused by the sample adhesion impurities are solved, and efficient sample cleaning and resource conservation are achieved.

CN222704405UActive Publication Date: 2025-04-01SHANDONG ZHONGDUN ELECTRICAL EQUIP
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202421110768.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-21
Publication Date
2025-04-01
Estimated Expiration
2034-05-21

AI Technical Summary

Technical Problem

The existing agricultural product testing sample processing device has the problem of impurities adhering to samples, causing blockage of micro water pumps, and the filter cartridge is not easy to pick up and place the samples, resulting in inconvenience in use.

Method used

A device including a cleaning bucket and a filter inner bucket suspended in the cleaning bucket is designed. The gear system drives the rotating tube and the fixing rod to rotate through the motor drive gear system, so that the filter cartridge can be quickly cleaned under the action of flushing force and centrifugal force, and the eluent recycling is realized through the water pump and the liquid feeding hose.

Benefits of technology

It effectively avoids water pump blockage, improves elution efficiency and resource utilization, and facilitates the pick-up and placement of samples and cleaning.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222704405U_ABST
    Figure CN222704405U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of agricultural product detection, specifically to a detection sample processing device for agricultural products, comprising a cleaning barrel, a filtering inner barrel suspended in the cleaning barrel, a barrel cover sleeved on the top of the cleaning barrel, a rotating tube connected to the top of the barrel cover through a bearing, a fixed rod fixedly connected to the bottom end of the rotating tube, four water guide branches arranged at the bottom end of the outer wall of the rotating tube, nozzles arranged at the bottom of the outer walls of the four water guide branches, four rectangular connecting blocks arranged at the bottom end of the outer wall of the fixed rod, filter cartridges suspended at the ends of the four rectangular connecting blocks. The detection sample processing device for agricultural products has a filtering inner barrel suspended in the cleaning barrel, which is used to filter impurities in the eluent, so that the eluent can be recycled for multiple times to avoid clogging the water pump, and when the filter cartridge needs to be removed, the staff moves the filter cartridge upward to move the vertical part of the L-shaped connecting block out of the rectangular hole, and then moves the filter cartridge forward to remove it, thereby facilitating the staff to take and place the agricultural product detection samples.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural product detection, in particular to a detection sample processing device for agricultural products. Background Art

[0002] In recent years, the problem of excessive pesticide residues in agricultural products such as fruits and vegetables has become one of the important factors affecting food safety. Strengthening the detection of pesticide residues in agricultural products in the circulation field has become a particularly necessary regulatory measure. Agricultural products need to be pre-treated before testing. Elution of pesticide residues in samples is one of the important steps in pre-treatment. Sample elution refers to the use of eluent to elute pesticide residues on the surface of the sample. In the existing agricultural product pre-treatment process, sample elution is mostly performed by directly immersing the sample in the eluent for elution. This method requires the use of a large amount of eluent, which cannot meet the detection limit requirements and will also cause a waste of resources.

[0003] The patent with the publication number CN219161767U discloses a pre-processing device for agricultural product detection, including a barrel body, a cover plate is provided on the top of the barrel body, telescopic rods are symmetrically provided between the two sides of the cover plate and the two sides of the barrel body, a micro motor is provided on the top surface of the cover plate, a rotating shaft is provided at the output end of the micro motor, the rotating shaft passes through the cover plate, a support rod is provided on the side wall of the rotating shaft located below the cover plate, a filter cartridge is provided at the end of the support rod, and an atomizing spray assembly is provided on the side wall of the barrel body. The utility model provides a pre-processing device for agricultural product detection, in which the sample in the filter cartridge is sprayed and atomized while rotating, and the sample is eluted by the flushing force of the atomizing nozzle and the centrifugal force of the filter cartridge, which greatly improves the elution efficiency and elution effect; when working, a small amount of eluent can be poured into the barrel body, and the eluent in the barrel body is recycled through the atomizing spray assembly, which greatly saves resources.

[0004] The above-mentioned prior art elutes the sample through the flushing force of the atomizing nozzle and the centrifugal force of the filter cartridge. However, in actual use, firstly, since the agricultural product samples will adhere to some impurities, it is easy to cause the micro water pump to be blocked. Secondly, the filter cartridge is fixedly connected to the end of the support rod, which is not convenient for the staff to take and place the agricultural product samples. Therefore, the above-mentioned prior art has certain usage defects when used. In view of this, we propose a sample processing device for agricultural product detection. Utility Model Content

[0005] The purpose of the utility model is to provide a detection sample processing device for agricultural products to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The detection sample processing device of agricultural products comprises a cleaning barrel, a filtering inner barrel is suspended in the cleaning barrel, and is used to filter impurities in the eluent, so that the eluent can be recycled for multiple times to avoid clogging the water pump, a barrel cover is sleeved on the top of the cleaning barrel, a U-shaped plate is arranged on the top of the barrel cover, a motor is arranged at the top of the U-shaped plate and near the right end, the motor is connected to an external power supply to work, the output shaft of the motor passes through the top of the U-shaped plate and is coaxially connected with a driving gear, a rotating tube is connected to the middle of the top of the barrel cover through a bearing, a driven gear meshing with the driving gear is arranged on the outer wall of the rotating tube and near the top, the driving gear is driven to rotate by the motor, the driving gear drives the driven gear to rotate, and the driven gear drives the rotating tube to rotate;

[0008] A U-shaped fixed tube is provided at the top of the U-shaped plate and near the left end. The output end of the U-shaped fixed tube passes through the top of the U-shaped plate and is connected to the rotating tube through a rotating joint. The eluent in the U-shaped fixed tube can enter the rotating tube through the rotating joint without affecting the rotation of the rotating tube. The bottom end of the rotating tube passes through the top of the barrel cover and is fixedly connected to a fixing rod. Four water guide branches arranged in a circular array are provided at the bottom of the outer wall of the rotating tube. Sprinklers are provided at the bottom of the outer walls of the four water guide branches. The eluent entering the rotating tube then enters the four water guide branches respectively and is finally sprayed out from the four sprinklers.

[0009] The bottom end of the outer wall of the fixed rod is provided with four rectangular connecting blocks arranged in a circular array, and filter cartridges are hung at the ends of the four rectangular connecting blocks. The rotating tube drives the fixed rod to rotate synchronously, so that the rectangular connecting blocks drive the filter cartridge to rotate, so that the agricultural product test sample in the filter cartridge is quickly cleaned under the action of flushing force and centrifugal force;

[0010] A water pump is provided on the rear side of the outer wall of the cleaning bucket, and the input end of the water pump is connected with the cleaning bucket through a liquid extraction pipe. The connection between the liquid extraction pipe and the cleaning bucket is located at the bottom of the cleaning bucket. The output end of the water pump is connected with the input end of the U-shaped fixed tube through a liquid delivery hose. When the water pump is connected to an external power supply, the water pump extracts the eluent in the cleaning bucket and delivers it to the U-shaped fixed tube through the liquid delivery hose.

[0011] Preferably, an annular support plate is provided on the inner wall of the cleaning barrel near the top, an annular suspension plate is provided on the top of the outer wall of the filtering inner barrel, the bottom of the annular suspension plate is abutted against the top of the annular support plate, and a filter net is provided at the bottom of the filtering inner barrel to facilitate the disassembly and assembly of the filtering inner barrel, thereby making it convenient for staff to clean the filtering inner barrel.

[0012] Preferably, two frame-shaped solid blocks are symmetrically arranged on the outer wall of the cleaning barrel near the top, and a positioning bolt is threadedly connected to the right side of the right frame-shaped solid block. The outer wall of the barrel cover is provided with two connecting vertical plates symmetrically arranged on the left and right, and a first socket is opened on the right side of the right connecting vertical plate near the top, and a second socket is opened on the right side of the right connecting vertical plate near the bottom. When the barrel cover is closed on the top of the cleaning barrel, the threaded end of the positioning bolt is located in the first socket, so that the position of the barrel cover is fixed; when the barrel cover is opened and the filter cartridge is operated, the threaded end of the positioning bolt is located in the second socket, so that the barrel cover is suspended and fixed, which is convenient for the staff to operate the filter cartridge.

[0013] Preferably, a handle is provided on the top of the barrel cover, and an anti-slip cover is provided on the handle to facilitate staff to move the barrel cover up and down.

[0014] Preferably, the four nozzles are respectively located directly above the four filter cartridges, ensuring that the eluent sprayed by the nozzles can effectively rinse the agricultural product test samples in the filter cartridges.

[0015] Preferably, a rectangular hole is provided at the top and near the end of the rectangular connecting block, and an L-shaped connecting block is provided on the outer wall and near the top of the filter cartridge. The L-shaped connecting block is inserted into the rectangular hole, and the outer wall of the filter cartridge fits with the end of the rectangular connecting block. When the filter cartridge needs to be removed, the staff moves the filter cartridge upward to move the vertical part of the L-shaped connecting block out of the rectangular hole, and then moves the filter cartridge forward to remove it, thereby facilitating the staff to take and place agricultural product testing samples.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The agricultural product inspection sample processing device drives the driving gear to rotate through a motor, the driving gear drives the driven gear to rotate, the driven gear drives the rotating tube to rotate, the rotating tube drives the fixed rod to rotate synchronously, so that the rectangular connecting block drives the filter cartridge to rotate, so that the agricultural product inspection sample in the filter cartridge is quickly cleaned under the action of flushing force and centrifugal force.

[0018] 2. The agricultural product inspection sample processing device, the water pump draws out the eluent in the cleaning barrel and delivers it to the U-shaped fixed tube through the liquid delivery hose. The eluent in the U-shaped fixed tube can enter the rotating tube through the rotating joint without affecting the rotation of the rotating tube. The eluent entering the rotating tube then enters the four water guide branches respectively, and is finally sprayed out from the four nozzles to achieve the flushing of the agricultural product inspection samples in the filter cartridge.

[0019] 3. The sample processing device for detecting agricultural products has a filter inner barrel suspended in the cleaning barrel for filtering impurities in the eluent so that the eluent can be recycled for multiple times to avoid clogging the water pump.

[0020] 4. In the agricultural product testing sample processing device, when it is necessary to remove the filter cartridge, the staff moves the filter cartridge upward to move the vertical part of the L-shaped connecting block out of the rectangular hole, and then moves the filter cartridge forward to remove it, thereby facilitating the staff to take and place the agricultural product testing samples.

[0021] 5. In the agricultural product testing sample processing device, when the barrel cover is closed on the top of the cleaning barrel, the threaded end of the positioning bolt is located in the first insertion hole, so that the position of the barrel cover is fixed; when the barrel cover is opened and the filter cartridge is operated, the threaded end of the positioning bolt is located in the second insertion hole, so that the barrel cover is suspended and fixed, which is convenient for the staff to operate the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall first state structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall second state structure of the utility model;

[0024] Figure 3 It is one of the partial structural schematic diagrams of the utility model;

[0025] Figure 4 This is the second schematic diagram of the partial structure of the utility model;

[0026] Figure 5 This is the third schematic diagram of the partial structure of the utility model;

[0027] Figure 6 It is a schematic diagram of the assembly structure of the rotating tube and the fixed rod in the utility model;

[0028] Figure 7 It is a schematic diagram of the filter cartridge structure in the utility model.

[0029] In the figure: 1. cleaning barrel; 10. annular support plate; 11. frame-shaped solid block; 12. positioning bolt; 2. barrel cover; 20. U-shaped plate; 21. connecting vertical plate; 210. first plug hole; 211. second plug hole; 22. handle; 3. motor; 4. driving gear; 5. rotating tube; 50. water guide branch pipe; 6. nozzle; 7. fixing rod; 70. rectangular connecting block; 700. rectangular hole; 8. filter cartridge; 80. L-shaped connecting block; 9. filter inner barrel; 90. annular hanging plate; 13. water pump; 130. liquid extraction pipe; 131. liquid delivery hose; 14. U-shaped fixing pipe; 15. rotating joint; 16. driven gear. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] See also Figure 1-Figure 7 , the utility model provides a technical solution:

[0033] The detection sample processing device of agricultural products comprises a cleaning barrel 1, a filtering inner barrel 9 is suspended in the cleaning barrel 1, and is used to filter impurities in the eluent, so that the eluent can be recycled for multiple times to avoid clogging the water pump 13, a barrel cover 2 is sleeved on the top of the cleaning barrel 1, a U-shaped plate 20 is provided on the top of the barrel cover 2, a motor 3 is provided at the top of the U-shaped plate 20 and near the right end, the motor 3 is connected to an external power supply for operation, the output shaft of the motor 3 passes through the top of the U-shaped plate 20 and is coaxially connected with a driving gear 4, a rotating tube 5 is connected to the middle of the top of the barrel cover 2 through a bearing, and a driven gear 16 meshing with the driving gear 4 is provided on the outer wall of the rotating tube 5 and near the top, the driving gear 4 is driven to rotate by the motor 3, the driving gear 4 drives the driven gear 16 to rotate, and the driven gear 16 drives the rotating tube 5 to rotate;

[0034] A U-shaped fixed tube 14 is provided at the top of the U-shaped plate 20 and near the left end. The output end of the U-shaped fixed tube 14 passes through the top of the U-shaped plate 20 and is connected to the rotating tube 5 through the rotating joint 15. The eluent in the U-shaped fixed tube 14 can enter the rotating tube 5 through the rotating joint 15 without affecting the rotation of the rotating tube 5. The bottom end of the rotating tube 5 passes through the top of the barrel cover 2 and is fixedly connected to a fixing rod 7. Four water guide branches 50 arranged in a circular array are provided at the bottom end of the outer wall of the rotating tube 5. The bottom of the outer wall of the four water guide branches 50 is provided with a nozzle 6. The eluent entering the rotating tube 5 then enters the four water guide branches 50 respectively, and is finally sprayed out from the four nozzles 6.

[0035] The bottom end of the outer wall of the fixed rod 7 is provided with four rectangular connecting blocks 70 arranged in a circular array, and the ends of the four rectangular connecting blocks 70 are all suspended with filter cartridges 8. The rotating tube 5 drives the fixed rod 7 to rotate synchronously, so that the rectangular connecting blocks 70 drive the filter cartridge 8 to rotate, so that the agricultural product test sample in the filter cartridge 8 is quickly cleaned under the action of flushing force and centrifugal force;

[0036] A water pump 13 is provided on the rear side of the outer wall of the cleaning bucket 1. The input end of the water pump 13 is connected to the cleaning bucket 1 through a liquid extraction pipe 130. The connection between the liquid extraction pipe 130 and the cleaning bucket 1 is located at the bottom of the cleaning bucket 1. The output end of the water pump 13 is connected to the input end of the U-shaped fixed tube 14 through a liquid delivery hose 131. When the water pump 13 is connected to an external power supply, the water pump 13 extracts the eluent in the cleaning bucket 1 and delivers it to the U-shaped fixed tube 14 through the liquid delivery hose 131.

[0037] In this embodiment, an annular support plate 10 is provided on the inner wall of the cleaning barrel 1 near the top, and an annular suspension plate 90 is provided on the top of the outer wall of the filtering inner barrel 9. The bottom of the annular suspension plate 90 is abutted against the top of the annular support plate 10. A filter net is provided at the bottom of the filtering inner barrel 9 to facilitate the disassembly and assembly of the filtering inner barrel 9, thereby facilitating the staff to clean the filtering inner barrel 9.

[0038] Specifically, two frame-shaped solid blocks 11 are symmetrically arranged on the outer wall of the cleaning barrel 1 near the top, and a positioning bolt 12 is threadedly connected to the right side of the right frame-shaped solid block 11. The outer wall of the barrel cover 2 is provided with two connecting vertical plates 21 symmetrically arranged on the left and right. A first socket 210 is opened on the right side of the right connecting vertical plate 21 near the top, and a second socket 211 is opened on the right side of the right connecting vertical plate 21 near the bottom. When the barrel cover 2 is closed on the top of the cleaning barrel 1, the threaded end of the positioning bolt 12 is located in the first socket 210, so that the position of the barrel cover 2 is fixed. When the barrel cover 2 is opened and the filter cartridge 8 is operated, the threaded end of the positioning bolt 12 is located in the second socket 211, so that the barrel cover 2 is suspended and fixed, which is convenient for the staff to operate the filter cartridge 8.

[0039] Furthermore, a handle 22 is provided on the top of the barrel cover 2, and an anti-slip cover is provided on the handle 22 to facilitate the staff to move the barrel cover 2 up and down.

[0040] Furthermore, the four nozzles 6 are respectively located directly above the four filter cartridges 8 , ensuring that the eluent sprayed by the nozzles 6 can effectively rinse the agricultural product test samples in the filter cartridges 8 .

[0041] Furthermore, a rectangular hole 700 is provided at the top and near the end of the rectangular connecting block 70, and an L-shaped connecting block 80 is provided on the outer wall and near the top of the filter cartridge 8. The L-shaped connecting block 80 is inserted into the rectangular hole 700, and the outer wall of the filter cartridge 8 fits with the end of the rectangular connecting block 70. When the filter cartridge 8 needs to be removed, the staff moves the filter cartridge 8 upward to move the vertical part of the L-shaped connecting block 80 out of the rectangular hole 700, and then moves the filter cartridge 8 forward to remove it, thereby facilitating the staff to take and place agricultural product testing samples.

[0042] When the agricultural product detection sample processing device of this embodiment is in use, the staff puts the agricultural product detection sample to be cleaned into one or more filter cartridges 8, and then hangs the filter cartridge 8 containing the agricultural product detection sample on the end of the rectangular connecting block 70, and then covers the top of the cleaning bucket 1 with the barrel cover 2, and tightens the positioning bolt 12, so that the threaded end of the positioning bolt 12 is inserted into the first plug hole 210, so that the position of the barrel cover 2 is fixed, and then the motor 3 and the water pump 13 are started to work, the motor 3 drives the driving gear 4 to rotate, the driving gear 4 drives the driven gear 16 to rotate, the driven gear 16 drives the rotating tube 5 to rotate, and the rotating tube 5 drives the fixing rod 7 to rotate synchronously, so that the rectangular connecting block 70 drives the filter cartridge 8 to rotate, and the water pump 13 extracts the eluent in the cleaning bucket 1. Under the action of the filtering inner barrel 9, impurities can be prevented from entering the water pump 13. The water pump 13 transports the extracted eluent to the U-shaped fixed tube 14 through the liquid delivery hose 131. The eluent in the U-shaped fixed tube 14 can be removed by the rotating connection The head 15 enters the rotating tube 5 without affecting the rotation of the rotating tube 5. The eluent entering the rotating tube 5 then enters the four water branch pipes 50 respectively, and is finally sprayed out from the four nozzles 6. The four nozzles 6 are respectively located directly above the four filter cartridges 8, ensuring that the eluent sprayed by the nozzle 6 can effectively flush the agricultural product detection samples in the filter cartridge 8, so that the agricultural product detection samples in the filter cartridge 8 are quickly cleaned under the action of flushing force and centrifugal force; when it is necessary to take out the cleaned agricultural product detection samples, the staff stops the motor 3 and the water pump 13, then removes the positioning bolt 12, then holds the handle 22 with the left hand and moves it upward, and installs the positioning bolt 12 with the right hand until the threaded end of the positioning bolt 12 is inserted into the second plug hole 211, so that the barrel cover 2 is suspended and fixed, and then the staff moves the filter cartridge 8 upward to move the vertical part of the L-shaped connecting block 80 out of the rectangular hole 700, and then moves the filter cartridge 8 forward to take it out, so as to facilitate the staff to take and put the agricultural product detection samples.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for processing agricultural product samples, comprising a cleaning barrel (1), characterized in that: A filtering inner barrel (9) is suspended in the cleaning barrel (1), a barrel cover (2) is sleeved on the top of the cleaning barrel (1), a U-shaped plate (20) is provided on the top of the barrel cover (2), a motor (3) is provided at the top of the U-shaped plate (20) and near the right end, the output shaft of the motor (3) passes through the top of the U-shaped plate (20) and is coaxially connected to a driving gear (4), a rotating tube (5) is connected to the middle of the top of the barrel cover (2) via a bearing, a driven gear (16) meshing with the driving gear (4) is provided on the outer wall of the rotating tube (5) and near the top end, a U-shaped fixed tube (14) is provided at the top of the U-shaped plate (20) and near the left end, the output end of the U-shaped fixed tube (14) passes through the top of the U-shaped plate (20) and is connected to the driving gear (4) via a rotating joint ( 15) is connected to a rotating tube (5), the bottom end of the rotating tube (5) passes through the top of the barrel cover (2) and is fixedly connected to a fixing rod (7), the bottom end of the outer wall of the rotating tube (5) is provided with four water guide branches (50) arranged in a circular array, the bottom of the outer walls of the four water guide branches (50) are each provided with a nozzle (6), the bottom end of the outer wall of the fixing rod (7) is provided with four rectangular connecting blocks (70) arranged in a circular array, and filter cartridges (8) are each suspended at the ends of the four rectangular connecting blocks (70), a water pump (13) is provided on the rear side of the outer wall of the cleaning barrel (1), the input end of the water pump (13) is connected to the cleaning barrel (1) through a liquid extraction pipe (130), and the output end of the water pump (13) is connected to the input end of the U-shaped fixing tube (14) through a liquid delivery hose (131).

2. The agricultural product sample processing device according to claim 1, characterized in that: An annular support plate (10) is provided on the inner wall of the cleaning barrel (1) near the top, an annular suspension plate (90) is provided on the top of the outer wall of the filtering inner barrel (9), the bottom of the annular suspension plate (90) abuts against the top of the annular support plate (10), and a filter screen is provided at the bottom of the filtering inner barrel (9).

3. The agricultural product sample processing device according to claim 1, characterized in that: Two frame-shaped solid blocks (11) are provided on the outer wall of the cleaning bucket (1) near the top, and a positioning bolt (12) is threadedly connected to the right side of the frame-shaped solid block (11). Two connecting vertical plates (21) are provided on the outer wall of the bucket cover (2) and are symmetrically arranged. A first plug hole (210) is provided on the right side of the right connecting vertical plate (21) near the top, and a second plug hole (211) is provided on the right side of the right connecting vertical plate (21) near the bottom.

4. The agricultural product sample processing device according to claim 1, characterized in that: A handle (22) is provided on the top of the barrel cover (2), and an anti-slip cover is provided on the handle (22).

5. The agricultural product sample processing device according to claim 1, characterized in that: The four nozzles (6) are respectively located directly above the four filter cartridges (8).

6. The agricultural product sample processing device according to claim 1, characterized in that: A rectangular hole (700) is provided at the top of the rectangular connection block (70) and near the end thereof, and an L-shaped connection block (80) is provided at the outer wall of the filter cartridge (8) and near the top thereof; the L-shaped connection block (80) is inserted into the rectangular hole (700), and the outer wall of the filter cartridge (8) fits the end of the rectangular connection block (70).

Citation Information

Patent Citations

  • Pretreatment device for agricultural product detection

    CN219161767U