Drug testing device

Abstract

The present invention relates to the field of drug detection technology, and in particular to a drug detection device, including a spectrometer, wherein the spectrometer is provided with an inward detection cavity, a protective cover is hingedly connected to the inner side of the detection cavity, and a spectrometer probe for detecting tablets is provided at the bottom of the detection cavity, a shielding plate is provided in the detection cavity and above the spectrometer probe, a fixing frame is slidably connected to the inner side of the detection cavity, a shielding mechanism for opening the shielding plate is provided on the side wall of the fixing frame, a pair of rotating shafts are rotatably connected to the inner side of the fixing frame, and a circular plate is fixedly connected between the rotating shafts. Through the mutual cooperation of the above-mentioned structures, the present invention can quickly flip over the circular plate on which the drug was placed during the last detection to pour out the residue, and when the drug is pushed to the spectrometer probe for detection, the cleaning brush can be driven to rotate to further clean the residue on the flipped placement plate, thereby realizing automatic cleaning of the drug residue and greatly improving the detection efficiency of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of drug detection, and in particular to a drug detection device. Background Art

[0002] Medicines include traditional Chinese medicine, chemical medicine and biological products, etc. They are used to prevent and treat human or animal diseases and purposefully regulate the physiological functions of humans or animals. They have prescribed usage and dosage. The method, quantity and time of use of the medicine largely determine its effectiveness. It needs to be used under the guidance of a doctor. If misused, it may endanger the safety of the user. It is a special commodity. Infrared spectrometers are used to monitor drugs during the production and research and development process. Infrared spectrometers use the absorption characteristics of substances to infrared radiation of different wavelengths to analyze molecular structure and chemical composition. Depending on the different spectroscopic devices, they are divided into dispersion type and interference type.

[0003] In the prior art, a Raman spectrum detection system and method based on the Internet of Things is disclosed with publication number CN114441501B. The laser emitted by the Raman spectrum probe is shielded by a shading mechanism, which simplifies the Raman detection steps and avoids damage to the eyes or flammable objects by the direct light and reflected light of the laser in the gap between the detection of different detection objects. The shading mechanism can drive the dust removal mechanism to perform dust removal operations on the Raman spectrum probe, thereby improving the accuracy of the Raman detector in detecting objects, thereby improving the detection results and detection efficiency.

[0004] Although the above technology can shield and remove dust from the spectral probe, there are still some defects in actual use. Since the drug is tested directly after the powdered drug is pressed into tablets by a tablet press during the research and development process, there is no sugar coating or any adhesive on the surface. Therefore, during the testing process, the powder on the drug is easy to fall onto the tablet placement plate, so the staff needs to clean it up after the test is completed. It is not only time-consuming and labor-intensive, but also greatly reduces the detection efficiency of the device. If it is not cleaned, it will fall on the spectral probe or adhere to the tablets to be tested subsequently during subsequent tests, affecting the test results of subsequent drugs.

[0005] Therefore, a drug detection device is proposed to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a drug detection device.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is: a drug detection device, including a spectrometer, the spectrometer is provided with a recessed detection cavity, the inner side of the detection cavity is hingedly connected with a protective cover, and the bottom of the detection cavity is provided with a spectrometer probe for detecting tablets, a shielding plate is provided in the detection cavity and above the spectrometer probe, a fixed frame is slidably connected to the inner side of the detection cavity, a shielding mechanism for opening the shielding plate is provided on the side wall of the fixed frame, a pair of rotating shafts are rotatably connected to the inner side of the fixed frame, and a circular plate is fixedly connected between the rotating shafts, a detection hole for infrared penetration detection is provided on the top of the circular plate, a recessed adjustment groove is provided on the front side of the fixed frame and at a position corresponding to the rotating shaft, and a flipping mechanism for flipping the circular plate to pour out the drug residue is provided inside the adjustment groove;

[0008] The camming mechanism comprises a rotating rod, which is fixedly connected to one side of a rotating shaft passing through an adjusting slot, and the outer wall of the rotating rod is provided with a pair of straight grooves, and the outer wall of the rotating rod is spirally provided with a pair of oblique grooves and are respectively connected with the upper and lower ends of the two straight grooves, and a sliding rod is slidably connected to the inner side of the straight groove, and a pressing cylinder is provided on the outer wall of the rotating rod, and a rectangular plate is fixedly connected to the inner side of the adjusting slot, and the top of the sliding rod passes through the top end of the pressing cylinder, and an upper spring is fixedly connected between the top of the pressing cylinder and the outer wall of the sliding rod, and a lower spring is fixedly connected between the inner side of the adjusting slot and the side wall of the rectangular plate, and an inward-recessed slot is obliquely provided on the inner side of the oblique slot and close to the rotating shaft, so that the connection between the oblique slot and the straight slot has a step, and a cleaning mechanism for further cleaning the medicine residue is provided at the bottom of the fixed frame.

[0009] In the above technical solution, further, the cleaning mechanism includes a cleaning brush and a collecting plate, the collecting plate is fixedly connected to the inner side of the detection cavity through four legs and is located on the inner side of the fixing frame, the upper gear is rotatably connected to the corner at the top of the inner side of the fixing frame, the cleaning brush is fixedly connected to the bottom end of the upper gear, the top of the collecting plate is fixedly connected to an upper rack meshing with the upper gear through a pair of support rods, the top of the shielding plate and the side away from the collecting plate is fixedly connected to a dust suction pipe, the dust suction pipe is connected to an external dust suction device through a bellows, the top of the collecting plate is fixedly connected to a U-shaped baffle and the opening faces the side of the spectrum probe;

[0010] When the fixed frame is pushed to move toward the side of the spectral probe for drug detection, first a part of the drug residue on the flipped circular plate will fall onto the collecting plate under the action of gravity, and then when the fixed frame is pushed, the upper gear rotating under the fixed frame will be driven to rotate under the action of the meshing upper rack, thereby driving the cleaning brush to rotate, thereby further cleaning the drug residue on the circular plate, and then the cleaned drug residue falls onto the collecting plate for collection.

[0011] In the above technical solution, further, a pair of connecting plates are fixedly connected to the top inner side of the fixed frame, a scraper is fixedly connected to the bottom of the connecting plate, and the bottom of the scraper is in contact with the top of the collecting plate. When the fixed frame moves, the scraper is driven to move on the collecting plate through the connecting plate, pushing the fallen drug residue to the side of the spectral probe for subsequent unified processing.

[0012] In the above technical solution, further, a through groove is provided at the top of the baffle plate at a position corresponding to the dust suction pipe, a plurality of dust suction heads are fixedly connected at equal intervals at the bottom of the dust suction pipe and located in the through groove, a dust suction hood is fixedly connected to the side wall of the dust suction pipe close to the collecting plate through a plurality of connecting pipes, and through the arrangement of the dust suction head and the dust suction hood, impurities on the spectral probe and the cleaned drug residues can be adsorbed at the same time.

[0013] In the above technical solution, further, a travel switch is fixedly connected to the bottom end of the inner side of the detection chamber, and the travel switch is electrically connected to the external dust suction equipment through the controller. Through the setting of the travel switch, when the driven rack moves, it can touch the travel switch, and then the travel switch transmits a signal to the controller, and the controller controls the external dust suction mechanism to start, thereby realizing automatic adsorption of the spectral probe and the cleaned drug residues.

[0014] In the above technical solution, further, a pair of T-slots are opened on the top of the detection cavity, and T-blocks are fixedly connected to both sides of the bottom of the fixed frame, and the T-blocks are slidably connected to the inner sides of the T-slots. Through the setting of the T-slots and the T-blocks, a limiting effect can be played on the sliding of the fixed frame.

[0015] In the above technical solution, further, roller seats are fixedly connected to both sides of the bottom of the T-block, rollers are rotatably connected to the inner sides of the roller seats, and the outer walls of the rollers are in contact with the bottom of the T-slot. Through the arrangement of the roller seats and the rollers, when the pushing fixed frame drives the T-block to move in the T-slot, the rollers are driven to roll, and direct friction is converted into rolling friction, thereby making it easier to push the fixed frame and improving the convenience of the device.

[0016] In the above technical solution, further, the shielding mechanism includes a driving rack and a driven rack, the driving rack is fixedly connected to the rear side of the fixed frame, the bottom end of the inner side of the detection cavity is rotatably connected to a lower gear meshing with the driving rack, the driven rack is arranged beside the lower gear and away from the driving rack, and the driven rack is fixedly connected to the bottom of the shielding plate and meshes with the lower gear;

[0017] The fixed frame is pushed to drive the driving rack to move, thereby driving the meshing lower gear to rotate, thereby driving the meshing driven rack on the other side to move in the opposite direction, and at the same time driving the shielding plate to move and slide under the collecting plate, so that the spectral probe can be quickly opened during detection.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Through the cooperation of the flipping mechanism and the cleaning mechanism, the circular plate on which the medicine was placed during the last test can be quickly flipped over to pour out the residue. When the medicine is pushed to the spectral probe for detection, the cleaning brush can be driven to rotate to further clean the residue on the flipped placement plate, thereby realizing automatic cleaning of the medicine residue and greatly improving the detection efficiency of the device.

[0020] 2. Through the cooperation of the shielding mechanism, the travel switch and the dust suction pipe, it can not only automatically start to adsorb the impurities on the spectrum probe during detection, but also adsorb the cleaned drug residues, further improving the detection efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the present invention.

[0030] In the figure: 1, spectrum detector; 2, detection chamber; 3, protective cover; 4, spectrum probe; 5, fixing frame; 6, rotating shaft; 7, circular plate; 8, detection hole; 9, adjustment slot; 10, shielding plate; 11, rotating rod; 12, straight slot; 13, inclined slot; 14, sliding rod; 15, pressing cylinder; 16, rectangular plate; 17, upper spring; 18, lower spring; 19, card slot; 20, cleaning brush; 21, collecting plate; 22, support Leg; 23, upper gear; 24, upper rack; 25, connecting plate; 26, scraper; 27, T-slot; 28, T-block; 29, roller seat; 30, roller; 31, driving rack; 32, driven rack; 33, lower gear; 34, dust suction pipe; 35, dust suction head; 36, dust suction hood; 37, connecting pipe; 38, U-shaped baffle; 39, support rod; 40, travel switch; 41, through groove; 42, bellows. DETAILED DESCRIPTION

[0031] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0032] like Figure 1-Figure 9 A drug detection device shown in the figure includes a spectrometer 1, on which a recessed detection cavity 2 is provided, and a protective cover 3 is hingedly connected to the inner side of the detection cavity 2. The detection cavity 2 can be shielded by the protective cover 3 when not in use to prevent dust from falling on the detection instrument and affecting the drug detection result, and a spectrometer probe 4 for detecting tablets is provided at the bottom of the detection cavity 2. The spectrometer 1 is mainly composed of a laser light source, an external optical path system, an internal spectroscopic optical path system, a photoelectric detection system and a corresponding data processing system. Its detection method is mainly to transmit laser to the sample through the spectrometer probe 4 to stimulate the Raman signal of the sample, and then transmit the Raman spectrum signal to the spectrometer 1 for detection, and use a computer for data analysis and processing. The detection chamber 2 is provided with a shielding plate 10 above the spectrum probe 4, a fixing frame 5 is slidably connected to the inner side of the detection chamber 2, and a shielding mechanism for opening the shielding plate 10 is provided on the side wall of the fixing frame 5. By setting the shielding mechanism, the spectrum probe 4 can be shielded when not detecting to prevent the direct light and reflected light of the laser from damaging the eyes or flammable items, and it can be quickly opened during detection. A pair of rotating shafts 6 are rotatably connected to the inner side of the fixing frame 5, and a circular plate 7 is fixedly connected between the rotating shafts 6. A detection hole 8 for infrared penetration detection is provided on the top of the circular plate 7. An inward adjustment groove 9 is provided on the front side of the fixing frame 5 and at a position corresponding to the rotating shaft 6. A flipping mechanism for flipping the circular plate 7 to pour out the medicine residue is provided inside the adjusting groove 9;

[0033] The turning mechanism includes a rotating rod 11, which is fixedly connected to one side of the rotating shaft 6 passing through the adjusting groove 9. A pair of straight grooves 12 are opened on the outer wall of the rotating rod 11, and a pair of inclined grooves 13 are spirally opened on the outer wall of the rotating rod 11 and are respectively connected with the upper and lower ends of the two straight grooves 12. A sliding rod 14 is slidably connected to the inner side of the straight groove 12. A pressing cylinder 15 is arranged on the outer wall of the rotating rod 11. A rectangular plate 16 is fixedly connected to both sides of the pressing cylinder 15 and the rectangular plate 16 is slidably connected to the inner side of the adjusting groove 9. The top of the sliding rod 14 passes through the top end of the pressing cylinder 15. An upper spring 17 is fixedly connected between the top of the pressing cylinder 15 and the outer wall of the sliding rod 14. A lower spring 18 is fixedly connected between the inner side of the adjusting groove 9 and the side wall of the rectangular plate 16. An inward-recessed card groove 19 is obliquely opened on the inner side of the inclined groove 13 and close to the rotating shaft 6, so that the connection between the inclined groove 13 and the straight groove 12 has a step, and a cleaning mechanism for further cleaning the medicine residue is provided at the bottom of the fixed frame 5;

[0034] When testing the medicine, first press the pressing cylinder 15 to turn over the circular plate 7 where the medicine was placed during the last test, and pour out the residue. In this process, the rectangular plate 16 is driven to slide in the adjusting groove 9 by pushing the pressing cylinder 15, thereby compressing the lower spring 18 and driving the slide bar 14 to slide in the straight groove 12. When it moves to the connection between the straight groove 12 and the inclined groove 13, the slide bar 14 is pushed downward and inserted into the card groove 19 under the elastic force of the upper spring 17, preventing the slide bar 14 from returning to the straight groove 12, and then the pressing cylinder 15 can be released, thereby the lower spring 18 is pressed. At the same time, since the card slot 19 is inclined and will hinder the slide bar 14 from returning to the straight slot 12, and the rectangular plate 16 will hinder the rotation of the pressing cylinder 15, the pressing cylinder 15 squeezes the slide bar 14 to squeeze the inclined slot 13 and drives the rotating rod 11 to rotate until the slide bar 14 slides into another straight slot 12, thereby completing the 180-degree flip of the circular plate 7, flipping the cleaned surface to the top, and placing the tablet to be tested on the circular plate 7 while covering the detection hole 8, and pushing the fixing frame 5 to move above the spectrum probe 4 for detection.

[0035] In order to clean the cleaned drug residue and spectral probe 4, the shielding mechanism includes a driving rack 31 and a driven rack 32. The driving rack 31 is fixedly connected to the rear side of the fixing frame 5. The bottom end of the inner side of the detection chamber 2 is rotatably connected to a lower gear 33 meshing with the driving rack 31. The driven rack 32 is arranged beside the lower gear 33 and away from the driving rack 31. The driven rack 32 is fixedly connected to the bottom of the shielding plate 10 and meshes with the lower gear 33. A travel switch 40 is fixedly connected to the bottom end of the inner side of the detection chamber 2, and the travel switch 40 is electrically connected to an external dust collection device through a controller. A through groove 41 is provided at the top of the shielding plate 10 and at a position corresponding to the dust collection pipe 34. A plurality of dust collection heads 35 are fixedly connected to the bottom of the dust collection pipe 34 and are located in the through groove 41 at equal intervals. A dust collection hood 36 is fixedly connected to the side wall of the dust collection pipe 34 and close to the collecting plate 21 through a plurality of connecting pipes 37.

[0036] The cleaning mechanism includes a cleaning brush 20 and a collecting plate 21. The collecting plate 21 is fixedly connected to the inner side of the detection chamber 2 through four legs 22 and is located on the inner side of the fixing frame 5. The upper gear 23 is rotatably connected at the corner of the inner top of the fixing frame 5. The cleaning brush 20 is fixedly connected to the bottom end of the upper gear 23. The top of the collecting plate 21 is fixedly connected to an upper rack 24 meshing with the upper gear 23 through a pair of support rods 39. A dust suction pipe 34 is fixedly connected to the top of the baffle plate 10 and away from the side of the collecting plate 21. The dust suction pipe 34 is connected to an external dust suction device through a bellows 42. A U-shaped baffle 38 is fixedly connected to the top of the collecting plate 21 and its opening faces the side of the spectrum probe 4. The U-shaped baffle 38 can shield the top of the collecting plate 21 to prevent the residue from coming out from both sides. A pair of connecting plates 25 are fixedly connected to the inner top of the fixing frame 5. A scraper 26 is fixedly connected to the bottom of the connecting plate 25, and the bottom of the scraper 26 is in contact with the top of the collecting plate 21.

[0037] When the fixing frame 5 is pushed to move toward the side of the spectrum probe 4 to detect the medicine, first, a part of the medicine residue on the turned-over circular plate 7 will fall onto the collecting plate 21 under the action of gravity, and then when the fixing frame 5 is pushed, the upper gear 23 rotating under the fixing frame 5 will be driven to rotate under the action of the meshing upper rack 24, thereby driving the cleaning brush 20 to rotate, so as to further clean the medicine residue on the circular plate 7, and then the cleaned medicine residue will fall onto the collecting plate 21, and while the fixing frame 5 moves, it will drive the scraper 26 to move on the collecting plate 21 through the connecting plate 25, so as to push the fallen medicine residue toward the side of the spectrum probe 4;

[0038] Then, the upper gear 23 is moved out of the meshing position with the upper rack 24 by the continued movement of the fixing frame 5. At the same time, the driving rack 31 is moved by the movement of the fixing frame 5, and then the meshing lower gear 33 is driven to rotate, thereby driving the meshing driven rack 32 on the other side to move in the opposite direction, and at the same time driving the shielding plate 10 to move and slide under the collecting plate 21, thereby opening the spectrum probe 4;

[0039] During this process, when the driven rack 32 moves, it will touch the travel switch 40, and then the travel switch 40 will transmit the signal to the controller. The controller controls the external dust suction mechanism to start, and then through the transmission of the bellows 42 and the dust suction pipe 34, suction is generated at the dust suction head 35, and then when the baffle plate 10 drives the dust suction head 35 to move, the impurities on the spectral probe 4 can be adsorbed to avoid affecting the subsequent detection results. Then, the fixed frame 5 drives the medicine to move to the top of the spectral probe 4, and it can stay for a period of time for detection. At this time, the baffle plate 10 will drive the dust cover 36 to move to the collection plate 21, and the scraper 26 will also push the fallen medicine residue to the edge of the collection plate 21, so that under the suction of the dust suction equipment, the cleaned medicine residue is adsorbed, and finally, after the detection is completed, the fixed frame 5 can be pulled back, and the above operation will be repeated in reverse.

[0040] In order to improve the smoothness when pushing the fixing frame 5 to move the medicine onto the spectroscopic probe 4, a pair of T-slots 27 are opened on the top of the detection cavity 2, and T-blocks 28 are fixedly connected to both sides of the bottom of the fixing frame 5, and the T-blocks 28 are slidably connected to the inner sides of the T-slots 27. Through the settings of the T-slots 27 and the T-blocks 28, the sliding of the fixing frame 5 can be limited, and roller seats 29 are fixedly connected to both sides of the bottom of the T-blocks 28. The inner sides of the roller seats 29 are rotatably connected with rollers 30, and the outer walls of the rollers 30 are in contact with the bottom of the T-slot 27. Through the settings of the roller seats 29 and the rollers 30, when the fixing frame 5 is pushed to drive the T-block 28 to move in the T-slot 27, the rollers 30 can be driven to roll, and the direct friction can be converted into rolling friction, thereby making it more labor-saving to push the fixing frame 5 and improving the convenience of the device.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A drug detection device, comprising a spectrum detector (1), wherein the spectrum detector (1) is provided with an inwardly recessed detection cavity (2), a protective cover (3) is hingedly connected to the inner side of the detection cavity (2), and a spectrum probe (4) for detecting tablets is provided at the bottom of the detection cavity (2), characterized in that: A baffle plate (10) is provided in the detection chamber (2) and above the spectral probe (4); a fixing frame (5) is slidably connected to the inside of the detection chamber (2); a shielding mechanism for opening the baffle plate (10) is provided on the side wall of the fixing frame (5); a pair of rotating shafts (6) are rotatably connected to the inside of the fixing frame (5); a circular plate (7) is fixedly connected between the rotating shafts (6); a detection hole (8) for infrared penetration detection is provided on the top of the circular plate (7); a recessed adjustment groove (9) is provided on the front side of the fixing frame (5) and at a position corresponding to the rotating shaft (6); a flipping mechanism for flipping the circular plate (7) to discard the medicine residue is provided inside the adjustment groove (9); The flip mechanism comprises a rotating rod (11), the rotating rod (11) being fixedly connected to one side of a rotating shaft (6) passing through the adjusting groove (9), the outer wall of the rotating rod (11) being provided with a pair of straight grooves (12), the outer wall of the rotating rod (11) being spirally provided with a pair of inclined grooves (13) which are respectively connected to the upper and lower ends of the two straight grooves (12), the inner side of the straight groove (12) being slidably connected to a sliding rod (14), the outer wall of the rotating rod (11) being provided with a pressing cylinder (15), both sides of the pressing cylinder (15) being fixedly connected to rectangular plates (16), and the rectangular plates (16) being slidably connected to the inner side of the straight groove (12), and the pressing cylinder (15) being provided with a pressing cylinder (15), and the rectangular plates (16) being slidably connected to the inner side of the straight groove (12). The adjusting groove (9) is movably connected to the inner side of the adjusting groove (9), the top of the sliding rod (14) passes through the inner top of the pressing cylinder (15), an upper spring (17) is fixedly connected between the top of the pressing cylinder (15) and the outer wall of the sliding rod (14), a lower spring (18) is fixedly connected between the inner side of the adjusting groove (9) and the side wall of the rectangular plate (16), an inwardly recessed slot (19) is obliquely provided on the inner side of the inclined groove (13) and close to the rotating shaft (6), so that the connection between the inclined groove (13) and the straight groove (12) has a step, and a cleaning mechanism for further cleaning the medicine residue is provided at the bottom of the fixed frame (5); The cleaning mechanism comprises a cleaning brush (20) and a collecting plate (21); the collecting plate (21) is fixedly connected to the inner side of the detection chamber (2) via four legs (22) and is located on the inner side of the fixing frame (5); an upper gear (23) is rotatably connected to the corner of the inner top of the fixing frame (5); the cleaning brush (20) is fixedly connected to the bottom end of the upper gear (23); an upper rack (24) meshing with the upper gear (23) is fixedly connected to the top of the collecting plate (21) via a pair of support rods (39); a dust suction pipe (34) is fixedly connected to the top of the shielding plate (10) and away from the collecting plate (21); the dust suction pipe (34) is connected to an external dust suction device via a bellows (42); a U-shaped baffle (38) is fixedly connected to the top of the collecting plate (21) and its opening faces the side of the spectrum probe (4); The shielding mechanism comprises a driving rack (31) and a driven rack (32), the driving rack (31) being fixedly connected to the rear side of the fixing frame (5), the inner bottom end of the detection chamber (2) being rotatably connected to a lower gear (33) meshing with the driving rack (31), the driven rack (32) being arranged beside the lower gear (33) and away from the driving rack (31), the driven rack (32) being fixedly connected to the bottom of the shielding plate (10) and meshing with the lower gear (33); A pair of connecting plates (25) are fixedly connected to the top inner side of the fixing frame (5), a scraper (26) is fixedly connected to the bottom of the connecting plate (25), and the bottom of the scraper (26) is in contact with the top of the collecting plate (21); A through groove (41) is provided at the top of the shielding plate (10) and at a position corresponding to the dust suction pipe (34); a plurality of dust suction heads (35) are fixedly connected at equal intervals at the bottom of the dust suction pipe (34) and located in the through groove (41); a dust suction cover (36) is fixedly connected to the side wall of the dust suction pipe (34) and close to the collecting plate (21) via a plurality of connecting pipes (37); A travel switch (40) is fixedly connected to the bottom inner end of the detection chamber (2), and the travel switch (40) is electrically connected to an external dust collection device via a controller.

2. A drug detection device according to claim 1, characterized in that: A pair of T-shaped slots (27) are provided at the top of the detection chamber (2), and T-shaped blocks (28) are fixedly connected to both sides of the bottom of the fixing frame (5), and the T-shaped blocks (28) are slidably connected to the inner sides of the T-shaped slots (27).

3. A drug detection device according to claim 2, characterized in that: Both sides of the bottom of the T-shaped block (28) are fixedly connected to roller seats (29), the inner sides of the roller seats (29) are rotatably connected to rollers (30), and the outer walls of the rollers (30) are in contact with the bottom of the T-shaped slot (27).

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