Self-cleaning laboratory sampling detection device and use method thereof

Abstract

The invention relates to the technical field of detection devices, and particularly discloses a self-cleaning laboratory sampling detection device and a use method thereof. The self-cleaning laboratory sampling detection device comprises a detection box and a conveying base; the conveying base is fixedly connected to the bottom of the detection box; a conveying belt is arranged in the detection box; through the arrangement of the cleaning mechanism, the sampling head can be cleaned during detection, the sampling head does not need to be disassembled manually, the sampling efficiency is improved, the self-cleaning effect is achieved, meanwhile, through the arrangement of a sealing block and sealing cotton, a notch can be closed, pollution caused by the fact that waste water flows out of the cleaning box in the cleaning process is avoided, and meanwhile, the cleaning efficiency is improved. The cleaning box is arranged on one side of the sampling head instead of being arranged above or below the sampling head, so that the influence on the sampling work can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to a self-cleaning laboratory sampling and detection device and a use method thereof. Background Art

[0002] The laboratory is a place where various chemical, physical, biological and other analytical tests are carried out. During the test, sampling equipment is needed to pick up samples of the items or liquids to be tested, and then conduct the test work.

[0003] Announcement No. CN208505683U discloses a quantitative adsorption device for laboratory sampling, including a connecting tube, the bottom of the connecting tube is communicated with the sampling head, and a sampling tube is fixedly installed on the right side wall of the connecting tube. The utility model has a simple structure. The adsorption device disclosed in the present invention can change the volume of the part communicating between the sampler and the sampling tube by moving the piston in the tube body of the sampler to form a negative pressure, thereby adsorbing the sample in the sampling tube and collecting it into the sampler. Since the sampler is provided with a scale, a certain amount of sample can be adsorbed by observing the scale on the sampler. At the same time, with the cooperation between the sampling tube and the sampler, the contamination of the sample by gas or dust in the air is effectively prevented. The positioner provided in the sampler can prevent the staff's hands from shaking during the transfer process, causing the pulling rod to slide, thereby causing the sample solution in the sampler to leak out, resulting in inaccurate measured sample solution, etc.

[0004] In the prior art, sample extraction and adsorption are achieved through sampling tubes, but different samples may need to be sampled during the operation. After the sample is replaced, the sampling tube needs to be cleaned to avoid affecting the test results. However, the above-mentioned device is not equipped with a cleaning component, and the sampling tube cannot be cleaned. When cleaning is required, manual labor is required, which increases the detection steps and reduces the detection efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a self-cleaning laboratory sampling and detection device and its use method to solve the following technical problems:

[0006] (1) How to achieve self-cleaning of the sampling tube and improve detection efficiency.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A self-cleaning laboratory sampling and testing device comprises a testing box and a conveying base; the conveying base is fixedly connected to the bottom of the testing box; a conveyor belt is provided inside the testing box; the conveyor belt is provided on the conveying base, and further comprises:

[0009] The sampling mechanism is arranged inside the detection box and above the conveyor belt;

[0010] A cleaning mechanism is arranged inside the detection box;

[0011] A driving mechanism is arranged on both sides of the cleaning mechanism;

[0012] The sampling mechanism includes a sampling base; a sampling plate is slidably provided on the sampling base; a sampling head is fixedly connected to one end of the sampling plate away from the sampling base; a connecting wire is fixedly connected to the sampling plate; an instrument is fixedly connected to the top of the detection box; and the connecting wire is electrically connected to the instrument;

[0013] The sample is placed on the conveyor belt and transported to the bottom of the sampling plate by the conveyor belt, and then the sampling plate is driven down to sample the sample. After the sampling is completed, the sample is transported out of the detection box by the conveyor belt; then the cleaning mechanism and the driving mechanism are driven to clean the sampling head.

[0014] The control rod is a pair of pair of pair of pair of coupling, and the pair of coupling is that Orbital gear is that Move ahead with the guide rail, and the guide rail is that movement between the end of two guide rails causes the guide rail to move upwards, thereby makes the cleaning effect of the cleaning agent more apparent. The tooth and the thread groove are threadedly connected to the movable plate; the side wall of the movable plate is fixedly connected to a telescopic spring; one end of the telescopic spring away from the movable plate is fixedly connected to a sealing block; the transmission rod is sleeved with a belt 1; the belt is sleeved on the tooth teeth; the bottom of the sealing magazine is rotatably connected to a driven rod 1; the driven rod 1 is fixedly connected to a gear 1 away from the sealing magazine; the side wall of the cleaning box is rotatably connected to a driven rod 2; the follower rod 2 is meshed with gear 2; the belt 1 is connected to the gear 2; the bottom of the cleaning magazine is rotatably connected to a driving rod; the driving rod input end is fixedly connected to the driving gear output end; the driving rod is sleeved with a belt 2; one end of the belt 2 away from the driving rod is sleeved with the driven rod; a notch is opened on the cleaning box; the notch is arranged at the L block.

[0015] Furthermore, the side wall of the cleaning box is fixedly connected to a telescopic cylinder; the end of the telescopic cylinder away from the cleaning box is fixedly connected to a sealing plate; the bottom of the cleaning box is provided with an inclined groove; the bottom of the detection box is fixedly connected to a water inlet bin and a waste water bin; the side wall of the water inlet bin is fixedly connected to a water pipe; the side wall of the waste water bin is fixedly connected to a waste water pipe; the end of the waste water pipe away from the waste water bin is fixedly connected to the cleaning box; the bottom of the cleaning box is fixedly connected to a connecting bin; the end of the water pipe away from the water inlet bin is fixedly connected to the connecting bin.

[0016] Furthermore, a fixing column is fixedly connected to the top of the driving box and the limit box; one end of the fixing column away from the driving box and the limit box is fixedly connected to the detection box; one end of the driving box and the limit box away from the fixing column is fixedly connected to the detection box.

[0017] Furthermore, the side wall of the detection box is fixedly connected to a drive motor and a water inlet pipe; the bidirectional screw is driven to rotate by the drive motor; the water inlet pipe is connected to the water inlet bin; the bottom of the detection box is fixedly connected to a water outlet pipe; the water outlet pipe is connected to the wastewater bin.

[0018] Furthermore, the sampling base is arranged above the water inlet tank and the waste water tank; the gear 1 and the gear 2 are bevel gear arrangements.

[0019] Furthermore, a heating pipe is fixedly connected to the side wall of the cleaning box; the conveyor belt is driven by a conveyor motor; and the conveyor motor is arranged on one side of the conveyor belt.

[0020] A self-cleaning laboratory sampling and detection method comprises the following steps:

[0021] S1, place the sample on the conveyor belt, then use the conveyor belt to transport the sample to the bottom of the sampling head, then drive the sampling plate down to make the sampling head contact with the sample, and then the data is transmitted to the instrument through the connecting line;

[0022] S2, when different samples need to be sampled, first drive the sampling plate down to the height of the cleaning box, then drive the cleaning box to move to the sampling head. During the movement, the sampling head will contact the L block, and the sealing block and sealing cotton will be used to seal the sampling head. At the same time, the sealing plate will be used to seal the notch. Then, the spray pipe will be used to spray clean water to clean the sampling head, and prevent the clean water from flowing out of the cleaning box.

[0023] S3, after cleaning is completed, the clean water flows from the waste water pipe into the waste water tank, and then the sampling head is dried using the heating tube.

[0024] Beneficial effects of the present invention:

[0025] (1) The present invention can realize the cleaning of the sampling head during detection by setting the cleaning mechanism, without the need for manual disassembly of the sampling head, thereby improving the sampling efficiency and achieving the effect of self-cleaning. At the same time, the notch can be closed by setting the sealing block and the sealing cotton to avoid waste water flowing out of the cleaning box during the cleaning process and causing pollution. At the same time, the cleaning box is set on one side of the sampling head, rather than above or below the sampling head, which can reduce the impact on the sampling work.

[0026] (2) When the sealing block and the sealing cotton seal the top of the slot, the side slot can be sealed by the telescopic cylinder and the sealing plate to prevent the clean water from flowing out of the cleaning box. At the same time, the cleaned water can flow from the chute to the wastewater pipe connection and then flow to the wastewater bin for collection.

[0027] (3) The present invention can also quickly dry the sampling head by setting a heating tube, further improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] Figure 1 It is a schematic diagram of the overall structure of the detection box and the instrument in the present invention;

[0030] Figure 2 It is a schematic diagram of the overall structure of the detection box of the present invention;

[0031] Figure 3 It is a schematic diagram of the overall structure of the sampling mechanism of the present invention;

[0032] Figure 4 It is a schematic diagram of the overall structure of the cleaning box of the present invention;

[0033] Figure 5 This is a cross-sectional view of the overall structure of the cleaning box of the present invention;

[0034] Figure 6 This is a schematic diagram of the overall structure of the L block and the sealed chamber in the present invention;

[0035] Figure 7 It is a schematic diagram of the overall structure of the L block in the present invention;

[0036] Figure 8 This is a cross-sectional view of the overall structure of the sealed chamber in the present invention;

[0037] Figure 9 This is a cross-sectional view of the overall structure of the cleaning chamber of the present invention;

[0038] Figure 10 yes Figure 9 Enlarged view of point A in the middle;

[0039] Figure 11 It is a schematic diagram of the overall structure of the sealing plate in the present invention.

[0040] Description of the drawings: 1. Detection box; 11. Instrument; 2. Conveying base; 3. Cleaning mechanism; 31. Cleaning box; 311. Notch; 312. Threaded block; 313. Limit block; 314. Telescopic cylinder; 315. Sealing plate; 316. Inclined slot; 317. Heating pipe; 32. Connecting chamber; 33. Water inlet chamber; 331. Water pipe; 332. Water inlet pipe; 34. Wastewater chamber; 341. Wastewater pipe; 342. Water outlet pipe; 35. Spraying pipe; 36. Cleaning chamber; 37. Rotating shaft; 371. L-block; 372. Sealing cotton; 373. Rack; 38. Sealing chamber; 381. Transmission rod ; 3811, teeth; 3812, thread groove; 382, movable plate; 383, telescopic spring; 384, sealing block; 385, driven rod one; 386, gear one; 387, driven rod two; 388, gear two; 389, belt one; 39, driving gear; 391, driving rod; 392, belt two; 4, driving mechanism; 41, driving box; 42, fixing column; 43, bidirectional screw; 44, limit box; 45, driving motor; 5, conveyor belt; 51, conveying motor; 6, sampling mechanism; 61, sampling base; 62, sampling plate; 63, sampling head; 64, connecting line. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] See also Figure 1 - Figure 11 As shown, the present application provides a self-cleaning laboratory sampling and detection device, including a detection box 1 and a conveying base 2; the conveying base 2 is fixedly connected to the bottom of the detection box 1; a conveyor belt 5 is provided inside the detection box 1; the conveyor belt 5 is provided on the conveying base 2, and further includes:

[0043] The sampling mechanism 6 is arranged inside the detection box 1 and above the conveyor belt 5;

[0044] The cleaning mechanism 3 is arranged inside the detection box 1;

[0045] The driving mechanism 4 is arranged on both sides of the cleaning mechanism 3;

[0046] The sampling mechanism 6 includes a sampling base 61; a sampling plate 62 is slidably provided on the sampling base 61; a sampling head 63 is fixedly connected to the end of the sampling plate 62 away from the sampling base 61; a connecting line 64 is fixedly connected to the sampling plate 62; a meter 11 is fixedly connected to the top of the detection box 1; and the connecting line 64 is electrically connected to the meter 11;

[0047] The sample is placed on the conveyor belt 5 and transported to the bottom of the sampling plate 62 by the conveyor belt 5. The sampling plate 62 is then driven down to sample the sample. After the sampling is completed, the sample is transported out of the detection box 1 by the conveyor belt 5. Then, the cleaning mechanism 3 and the driving mechanism 4 are driven to clean the sampling head 63.

[0048] During operation, first, the sample is placed on the conveyor belt 5, and then the conveyor belt 5 is driven to work, and the sample is moved to the bottom of the sampling head 63. After arriving, the sampling plate 62 is driven to descend. The sampling plate 62 is driven by the sampling base 61, and the driving mode is cylinder drive. When the sampling plate 62 descends, the sample is sampled and tested by the sampling head 63, and the test results are transmitted to the instrument 11 by the connecting line 64 for display. When the test is completed and different samples need to be tested again, the cleaning mechanism 3 will be driven to the sampling head 63 to clean the sampling head 63. After cleaning, the sampling head 63 is dried, and then the sample is placed on the conveyor belt 5 for transportation. Through the setting of the cleaning mechanism 3, the sampling head 63 can be self-cleaned during detection, and there is no need to manually disassemble the sampling head 63, thereby improving the sampling efficiency.

[0049] like Figure 3 - Figure 10As shown, the driving mechanism 4 includes a driving box 41 and a limit box 44; a bidirectional screw rod 43 is rotatably connected in the driving box 41; the cleaning mechanism 3 includes a cleaning box 31; a threaded block 312 and a limit block 313 are fixedly connected to the side wall of the cleaning box 31; the threaded block 312 is threadedly connected to the bidirectional screw rod 43; the limit block 313 is slidably connected in the limit box 44; a spray pipe 35 is fixedly connected in the cleaning box 31; the spray pipe 35 is provided with multiple groups; a cleaning chamber 36 is fixedly connected to the top of the cleaning box 31; a rotating shaft 37 is rotatably connected in the cleaning chamber 36; the rotating shaft 37 is remote An L-block 371 is fixedly connected to one end of the cleaning chamber 36; the bending part of the L-block 371 is connected to the rotating shaft 37; a sealing cotton 372 is fixedly connected to the side wall of the L-block 371; a rack 373 is fixedly connected to the end of the L-block 371 away from the sealing cotton 372; a driving gear 39 is rotatably connected to the cleaning chamber 36; the rack 373 is meshed with the driving gear 39; a sealing chamber 38 is fixedly connected to the top of the cleaning chamber 36; a transmission rod 381 is rotatably connected to the side wall of the sealing chamber 38; teeth 3811 and a threaded groove 3812 are provided on the transmission rod 381; the threaded groove The movable plate 382 is threadedly connected at 3812; the side wall of the movable plate 382 is fixedly connected to a telescopic spring 383; the end of the telescopic spring 383 away from the movable plate 382 is fixedly connected to a sealing block 384; a belt 389 is sleeved on the transmission rod 381; the belt 389 is sleeved on the teeth 3811; the bottom of the sealing chamber 38 is rotatably connected to a driven rod 385; the end of the driven rod 385 away from the sealing chamber 38 is fixedly connected to a gear 386; the side wall of the cleaning box 31 is rotatably connected to a driven rod 2 387; the driven rod 2 387 is away from the cleaning chamber One end of the box 31 is fixedly connected to gear 2 388; gear 1 386 is meshed with gear 2 388; the end of belt 1 389 away from the transmission rod 381 is connected to the driven rod 2 387; the bottom of the cleaning chamber 36 is rotatably connected to the driving rod 391; the input end of the driving rod 391 is fixedly connected to the output end of the driving gear 39; belt 2 392 is connected to the driving rod 391; the end of belt 2 392 away from the driving rod 391 is connected to the driven rod 1 385; a notch 311 is formed on the cleaning box 31; notch 311 is set at the L block 371;

[0050] When the cleaning is complete, the sampling plate 62 is lowered to a position parallel to the cleaning box 31, and then the bidirectional screw rod 43 is driven to rotate, and the threaded block 312 is used to drive the cleaning box 31 to move to the sampling head 63. A slot 311 is provided on the side wall of the cleaning box 31, and the slot 311 is arranged parallel to the sampling head 63. When moving, the sampling head 63 enters the cleaning box 31 from the slot 311. When entering, the sampling head 63 will contact the L block 371 provided at the slot 311 and push the L block 371. When the L block 371 is pushed, it will rotate. During the rotation process, due to the setting of the driving shaft, one end of the sealing cotton 372 will contact the sampling head 63. At the same time, the other end of the L block 371 will drive the rack 373 to move. During the movement, it will drive the driving gear 39 to rotate, and when rotating, it will drive the lower driving rod 391 and the belt 2 392 to rotate, and then drive the driven rod 1 385 and the gear 1 386 to rotate, and then use Gear 1 386 and gear 2 388 drive driven rod 2 387 to rotate. When driven rod 2 387 rotates, it will drive the transmission rod 381 in the sealing chamber 38 to rotate through belt 1 389, thereby driving the sealing block 384 to move. When the sampling head 63 pushes the rack 373 to move, the sealing block 384 will also move, thereby contacting the sampling head 63. A telescopic spring 383 is provided on the back of the sealing block 384. If it continues to move during contact, the telescopic spring 383 will be squeezed. The provision of the telescopic spring 383 can protect the sampling head 63 during continuous movement to avoid hard contact. The sealing block 384 is made of the same soft material as the sealing cotton 372. It will deform when in contact, thereby fitting the shape of the sampling head 63, and wrapping the sampling head 63 with the sealing cotton 372 on the other side, while closing the slot 311 on the top of the cleaning box 31. After closing, clean water is injected to clean the sampling head 63.

[0051] like Figure 11 As shown, a telescopic cylinder 314 is fixedly connected to the side wall of the cleaning box 31; a sealing plate 315 is fixedly connected to the end of the telescopic cylinder 314 away from the cleaning box 31; an inclined slot 316 is provided at the bottom of the cleaning box 31; a water inlet bin 33 and a waste water bin 34 are fixedly connected to the bottom of the detection box 1; a water supply pipe 331 is fixedly connected to the side wall of the water inlet bin 33; a waste water pipe 341 is fixedly connected to the side wall of the waste water bin 34; the end of the waste water pipe 341 away from the waste water bin 34 is fixedly connected to the cleaning box 31; the bottom of the cleaning box 31 is fixedly connected to the connecting bin 32; the end of the water supply pipe 331 away from the water inlet bin 33 is fixedly connected to the connecting bin 32;

[0052] During operation, when the sealing block 384 and the sealing cotton 372 seal the top of the slot 311, the side slot 311 can be sealed by the telescopic cylinder 314 and the sealing plate 315 to prevent the clean water from flowing out of the cleaning box 31. At the same time, the cleaned water can flow from the chute 316 to the connection of the waste water pipe 341, and then flow to the waste water tank 34 for collection.

[0053] like Figure 3 As shown, the top of the driving box 41 and the limit box 44 are fixedly connected with a fixing column 42; the end of the fixing column 42 away from the driving box 41 and the limit box 44 is fixedly connected to the detection box 1; the end of the driving box 41 and the limit box 44 away from the fixing column 42 is fixedly connected to the detection box 1;

[0054] During operation, the fixing column 42 can fix the limit box 44 and the driving box 41. At the same time, the setting of the limit block 313 can prevent the cleaning box 31 from tilting during movement.

[0055] like Figure 6 As shown, the side wall of the detection box 1 is fixedly connected to a drive motor 45 and a water inlet pipe 332; the bidirectional screw rod 43 is driven to rotate by the drive motor 45; the water inlet pipe 332 is connected to the water inlet bin 33; the bottom of the detection box 1 is fixedly connected to a water outlet pipe 342; the water outlet pipe 342 is connected to the waste water bin 34;

[0056] During operation, the bidirectional screw rod 43 can be driven to rotate by the driving motor 45, thereby driving the cleaning box 31 to move.

[0057] like Figure 6 As shown, the sampling base 61 is arranged above the water inlet tank 33 and the waste water tank 34; the gear 1 386 and the gear 2 388 are bevel gear arrangements;

[0058] During operation, the bevel gears can mesh better.

[0059] like Figure 6 As shown, a heating pipe 317 is fixedly connected to the side wall of the cleaning box 31; the conveyor belt 5 is driven by a conveyor motor 51; the conveyor motor 51 is arranged on one side of the conveyor belt 5;

[0060] During operation, the heating tube 317 is driven by a power generation device which is not shown in the figure. After cleaning is completed, the sampling head 63 can be quickly dried by the heating tube 317 .

[0061] See also Figure 1 - Figure 11 As shown, the present application provides a self-cleaning laboratory sampling and detection method, comprising the following steps:

[0062] S1, place the sample on the conveyor belt 5, then use the conveyor belt 5 to transport the sample to the bottom of the sampling head 63, then drive the sampling plate 62 down to make the sampling head 63 contact the sample, and then the data is transmitted to the instrument 11 via the connecting line 64;

[0063] S2: When sampling different samples, the sampling plate 62 is first driven down to the height of the cleaning box 31, and then the cleaning box 31 is driven to move to the sampling head 63. During the movement, the sampling head 63 contacts the L-block 371 and is sealed with the sealing block 384 and the sealing cotton 372. At the same time, the notch 311 is sealed with the sealing plate 315. Then, the spray pipe 35 is used to spray clean water to clean the sampling head 63 and prevent the clean water from flowing out of the cleaning box 31.

[0064] S3, after cleaning is completed, the clean water flows into the waste water tank from the waste water pipe 341, and then the sampling head 63 is dried by the heating tube 317;

[0065] During operation, the sample is placed on the conveyor belt 5, and then the conveyor belt 5 is used to transport the sample to the bottom of the sampling head 63, and then the sampling plate 62 is driven to descend so that the sampling head 63 contacts the sample. Then the data is transmitted to the instrument 11 via the connecting line 64. When sampling different samples, the sampling plate 62 is first driven to descend to the height of the cleaning box 31, and then the cleaning box 31 is driven to move to the sampling head 63. During the movement, the sampling head 63 will contact the L block 371, and the sealing block 384 and the sealing cotton 372 are used to seal the sampling head 63. At the same time, the sealing plate 315 is used to seal the slot 311, and then the spray pipe 35 is used to spray clean water to clean the sampling head 63, and prevent the clean water from flowing out of the cleaning box 31. After cleaning, the clean water flows into the wastewater tank from the wastewater pipe 341, and then the heating pipe 317 is used to dry the sampling head 63.

[0066] The working principle of the present invention is as follows: when the sampling work is completed and cleaning is required, the sampling plate 62 is lowered to be parallel to the cleaning box 31, and then the bidirectional screw rod 43 is driven to rotate, and the threaded block 312 is used to drive the cleaning box 31 to move to the sampling head 63. A slot 311 is provided on the side wall of the cleaning box 31, and the slot 311 is arranged parallel to the sampling head 63. During movement, the sampling head 63 enters the cleaning box 31 from the slot 311. During entry, the sampling head 63 will contact the L block 371 provided at the slot 311 and push the L block 371. When pushed, the L block 371 will rotate. During the rotation process, due to the setting of the drive shaft, one end with the sealing cotton 372 will contact the sampling head 63. At the same time, the other end of the L block 371 will drive the rack 373 to move. During the movement, it will drive the driving gear 39 to rotate, and during the rotation, it will drive the lower driving rod 391 and the belt 2 392 to rotate, and then drive the driven rod 1 385 and the gear 1 386 to rotate, and then The driven rod 2 387 is driven to rotate by the gear 1 386 and the gear 2 388. When the driven rod 2 387 rotates, the transmission rod 381 in the sealing chamber 38 is driven to rotate through the belt 1 389, thereby driving the sealing block 384 to move. When the sampling head 63 pushes the rack 373 to move, the sealing block 384 also moves, thereby contacting the sampling head 63. A telescopic spring 383 is provided on the back of the sealing block 384. If the movement continues during the contact, the telescopic spring 383 will be squeezed. The provision of the telescopic spring 383 can protect the sampling head 63 during continuous movement to avoid hard contact. The sealing block 384 is made of the same soft material as the sealing cotton 372. When in contact, it will deform, thereby fitting the shape of the sampling head 63, and wrapping the sampling head 63 with the sealing cotton 372 on the other side, while closing the slot 311 on the top of the cleaning box 31. After closing, clean water is injected to clean the sampling head 63.

[0067] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A self-cleaning laboratory sampling and detection device, comprising a detection box (1) and a conveying base (2); the conveying base (2) is fixedly connected to the bottom of the detection box (1); a conveyor belt (5) is provided inside the detection box (1); the conveyor belt (5) is provided on the conveying base (2), characterized in that: Also includes: A sampling mechanism (6) is arranged inside the detection box (1) and located above the conveyor belt (5); A cleaning mechanism (3) is arranged inside the detection box (1); A driving mechanism (4) is arranged on both sides of the cleaning mechanism (3); The sampling mechanism (6) comprises a sampling base (61); a sampling plate (62) is slidably provided on the sampling base (61); a sampling head (63) is fixedly connected to one end of the sampling plate (62) away from the sampling base (61); a connecting line (64) is fixedly connected to the sampling plate (62); a meter (11) is fixedly connected to the top of the detection box (1); the connecting line (64) is electrically connected to the meter (11); The sample is placed on the conveyor belt (5), and is transported to the bottom of the sampling plate (62) via the conveyor belt (5). The sampling plate (62) is then driven downward to sample the sample. After the sampling is completed, the sample is transported out of the detection box (1) by the conveyor belt (5); and then the cleaning mechanism (3) and the driving mechanism (4) are driven to clean the sampling head (63).

2. A self-cleaning laboratory sampling and detection device according to claim 1, characterized in that: The driving mechanism (4) comprises a driving box (41) and a limiting box (44); a bidirectional screw rod (43) is rotatably connected in the driving box (41); the cleaning mechanism (3) comprises a cleaning box (31); a threaded block (312) and a limiting block (313) are fixedly connected to the side wall of the cleaning box (31); the threaded block (312) is threadedly connected to the bidirectional screw rod (43); the limiting block (313) is slidably connected in the limiting box (44); a spraying pipe (35) is fixedly connected in the cleaning box (31); a plurality of spraying pipes (35) are provided; a cleaning chamber (36) is fixedly connected to the top of the cleaning box (31); a rotating shaft (37) is rotatably connected in the cleaning chamber (36); the rotating shaft (37) is fixedly connected to the cleaning chamber (36); the rotating shaft (37) is fixedly connected to the cleaning chamber (36); the rotating shaft (37) is fixedly connected to the cleaning chamber (36); the rotating shaft (37) is fixedly connected to the cleaning chamber (31 ... The end of the shaft (37) away from the cleaning chamber (36) is fixedly connected to an L block (371); the bending portion of the L block (371) is connected to the rotating shaft (37); the side wall of the L block (371) is fixedly connected to a sealing cotton (372); the end of the L block (371) away from the sealing cotton (372) is fixedly connected to a rack (373); a driving gear (39) is rotatably connected in the cleaning chamber (36); the rack (373) is meshed with the driving gear (39); the top of the cleaning chamber (36) is fixedly connected to a sealing chamber (38); the side wall of the sealing chamber (38) is rotatably connected to a transmission rod (381); the transmission rod (381) is provided with teeth (3811) and a thread groove (3812) The thread groove (3812) is threadedly connected to a movable plate (382); a telescopic spring (383) is fixedly connected to the side wall of the movable plate (382); a sealing block (384) is fixedly connected to one end of the telescopic spring (383) away from the movable plate (382); a belt (389) is sleeved on the transmission rod (381); the belt (389) is sleeved on the teeth (3811); a driven rod (385) is rotatably connected to the bottom of the sealing chamber (38); a gear (386) is fixedly connected to one end of the driven rod (385) away from the sealing chamber (38); a driven rod (387) is rotatably connected to the side wall of the cleaning box (31); the driven rod (387) is away from One end of the cleaning box (31) is fixedly connected to the second gear (388); the first gear (386) is meshed with the second gear (388); the end of the first belt (389) away from the transmission rod (381) is sleeved with the second driven rod (387); the bottom of the cleaning chamber (36) is rotatably connected to the driving rod (391); the input end of the driving rod (391) is fixedly connected to the output end of the driving gear (39); the second belt (392) is sleeved on the driving rod (391); the end of the second belt (392) away from the driving rod (391) is sleeved with the first driven rod (385); a notch (311) is provided on the cleaning box (31); the notch (311) is provided at the L block (371).

3. A self-cleaning laboratory sampling and detection device according to claim 2, characterized in that: The side wall of the cleaning box (31) is fixedly connected to a telescopic cylinder (314); the end of the telescopic cylinder (314) away from the cleaning box (31) is fixedly connected to a sealing plate (315); the bottom of the cleaning box (31) is provided with an inclined slot (316); the bottom of the detection box (1) is fixedly connected to a water inlet bin (33) and a waste water bin (34); the side wall of the water inlet bin (33) is fixedly connected to a water delivery pipe (331); the side wall of the waste water bin (34) is fixedly connected to a waste water pipe (341); the end of the waste water pipe (341) away from the waste water bin (34) is fixedly connected to the cleaning box (31); the bottom of the cleaning box (31) is fixedly connected to a connecting bin (32); the end of the water delivery pipe (331) away from the water inlet bin (33) is fixedly connected to the connecting bin (32).

4. A self-cleaning laboratory sampling and detection device according to claim 3, characterized in that: A fixing column (42) is fixedly connected to the top of the driving box (41) and the limiting box (44); one end of the fixing column (42) away from the driving box (41) and the limiting box (44) is fixedly connected to the detection box (1); and one end of the driving box (41) and the limiting box (44) away from the fixing column (42) is fixedly connected to the detection box (1).

5. A self-cleaning laboratory sampling and detection device according to claim 4, characterized in that: The side wall of the detection box (1) is fixedly connected to a driving motor (45) and a water inlet pipe (332); the bidirectional screw rod (43) is driven to rotate by the driving motor (45); the water inlet pipe (332) is communicated with the water inlet bin (33); the bottom of the detection box (1) is fixedly connected to a water outlet pipe (342); the water outlet pipe (342) is communicated with the waste water bin (34).

6. A self-cleaning laboratory sampling and detection device according to claim 5, characterized in that: The sampling base (61) is arranged above the water inlet tank (33) and the waste water tank (34); the gear 1 (386) and the gear 2 (388) are bevel gear arrangements.

7. A self-cleaning laboratory sampling and detection device according to claim 6, characterized in that: A heating pipe (317) is fixedly connected to the side wall of the cleaning box (31); the conveyor belt (5) is driven by a conveyor motor (51); and the conveyor motor (51) is arranged on one side of the conveyor belt (5).

8. A self-cleaning laboratory sampling and detection method using a self-cleaning laboratory sampling and detection device according to claim 6, characterized in that: The following steps are involved: S1, placing the sample on the conveyor belt (5), then using the conveyor belt (5) to transport the sample to the bottom of the sampling head (63), then driving the sampling plate (62) down to make the sampling head (63) contact with the sample, and then transmitting the data to the instrument (11) via the connecting line (64); S2, when different samples need to be sampled, first drive the sampling plate (62) down to the height of the cleaning box (31), then drive the cleaning box (31) to move to the sampling head (63), when moving, the sampling head (63) will contact the L block (371), and use the sealing block (384) and the sealing cotton (372) to seal the sampling head (63), and use the sealing plate (315) to seal the notch (311), and then use the spray pipe (35) to spray clean water to clean the sampling head (63), and prevent the clean water from flowing out of the cleaning box (31); S3, after cleaning is completed, the clean water flows from the waste water pipe (341) into the waste water tank, and then the sampling head (63) is dried using the heating pipe (317).

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