Sample analysis pretreatment device

Abstract

The utility model relates to the technical field of sample pretreatment, and provides a sample analysis pretreatment device which comprises a base, a fixed cylinder is fixedly mounted at the top of the base, a pipe frame is fixedly mounted on the inner wall of the fixed cylinder, a plurality of round openings are sequentially formed in the pipe frame in a round array mode, and containing pipes are inserted into the inner sides of the round openings. A sleeve shell is arranged at the top of the fixed cylinder, a circular plate is fixedly installed on the inner wall of the sleeve shell, a plurality of rotating rods are sequentially arranged on the circular plate in a penetrating mode in a circular array mode, the rotating rods are rotationally connected with the circular plate, and a plurality of smashing cutters are sequentially and fixedly installed on the outer side walls of the multiple rotating rods from top to bottom; through the arrangement of the fixed cylinder, the pipe frame, the round opening, the containing pipe, the sleeve shell, the round plate, the rotating rod, the crushing cutter, the driven gear and the driving structure, various samples or samples of different batches can be subjected to crushing pretreatment at the same time at a time, and then the time and progress of sample detection and analysis are greatly accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of sample preprocessing, and specifically to a sample analysis preprocessing device. Background Art

[0002] Sample pretreatment is a routine step in quality inspection. Food, leather, packaging materials, etc. all require certain pretreatment and extraction before undergoing precise measurements such as liquid chromatography and gas chromatography. Conventional pretreatment methods include weighing, shearing, stirring, and crushing.

[0003] The known Chinese public authorized utility model CN215640453U discloses a sample pretreatment device for food detection, comprising a feed box and a shell, a feed port is arranged at the upper end of the feed box and a first motor is installed, the lower end of the shell of the first motor is connected to a spray head, the output shaft thereof passes through the spray head and is connected to the first rotating shaft, a plurality of cutting blades are connected to the first rotating shaft, the lower end of the feed box is fixedly connected to an upper grinding disc, the upper grinding disc is provided with a through hole communicating with the feed box, a third and a second motor are respectively installed at the upper and lower ends of the inner part of the shell, a sleeve is connected to the shell of the second motor, a hydraulic rod is connected to the output shaft, the hydraulic rod is connected to the lower grinding disc, the upper end of the sleeve is connected to a lower hopper, the right end of the lower hopper is connected to a mixing box, the mixing box is provided with a mixing layer, a filtering layer and an accumulation layer, the output shaft of the third motor is connected to the second rotating shaft, and the second rotating shaft passes through the mixing layer, a water pipe is embedded in the shell along the annular direction, a plurality of spray heads are also provided inside the shell and connected to the water pipe, the device has a reasonable structure and diverse functions, and can meet the needs of the field of food detection.

[0004] However, in the implementation of relevant technologies, it was found that the above scheme has the following problems: when the existing technology is used, the pretreatment efficiency is low and only one sample can be crushed and pretreated at a time, which not only prolongs the time of sample detection and analysis, but also delays the progress of detection and analysis. Utility Model Content

[0005] The utility model provides a sample analysis pretreatment device, which solves the problem in the related art that the pretreatment efficiency is low and only one sample can be crushed for pretreatment at a time, thereby prolonging the sample detection and analysis time and delaying the detection and analysis progress.

[0006] The technical solution of the utility model is as follows: a sample analysis pretreatment device, comprising a base, a fixed cylinder is fixedly installed on the top of the base, a tube rack is fixedly installed on the inner wall of the fixed cylinder, a plurality of circular openings are sequentially opened on the tube rack in a circular array, and a holding tube is inserted into the inner side of each of the plurality of circular openings;

[0007] A sleeve is provided on the top of the fixed cylinder, a circular plate is fixedly installed on the inner wall of the sleeve, a plurality of rotating rods are sequentially arranged on the circular plate in a circular array, and the rotating rods are rotatably connected to the circular plate, a plurality of crushing knives are sequentially fixedly installed on the outer side walls of the plurality of rotating rods from top to bottom, and the crushing knives are located on the inner side of the containing tube, a driven gear is fixedly installed on the top of the rotating rod, a driving structure is provided on the inner side of the sleeve, and the driving structure is meshedly connected with the driven gear;

[0008] The base is provided with a lifting assembly, a rotating assembly is provided inside the lifting assembly, and the sleeve shell is fixedly mounted on the rotating assembly.

[0009] Preferably, two strip plates are fixedly mounted on the outer side walls of the plurality of containing tubes, a plurality of grooves are provided on the tube rack, and the plurality of grooves are arranged in groups of two each and are located on the inner sides of the plurality of circular openings, and the strip plates are plugged into the grooves.

[0010] Preferably, connection components are provided on both sides of the base, U-shaped plates are provided on the two connection components, and two suction cups are fixedly installed on the bottom of the two U-shaped plates.

[0011] Preferably, the connecting assembly includes two E-shaped plates fixedly mounted on both sides of the base, and the two U-shaped plates are respectively located on the outside of the two E-shaped plates, screws are rotatably mounted on the tops of the two E-shaped plates, and the U-shaped plates are threadedly connected to the outer side walls of the screws.

[0012] Preferably, an exhaust pipe is fixedly mounted on the suction cup, and a sealing plug is provided at the other end of the exhaust pipe.

[0013] Preferably, the driving structure comprises a first motor fixedly mounted on the inner top wall of the casing via a mounting frame, a driving gear is fixedly mounted on the output end of the first motor, and the driving gear is meshingly connected with the driven gear.

[0014] Preferably, the lifting assembly includes a fixed shell fixedly mounted on the top of the base, an L-shaped shell is sleeved on the outer side of the fixed shell, two electric telescopic rods are fixedly mounted on the inner bottom wall of the fixed shell, and the top of the electric telescopic rod is fixedly connected to the L-shaped shell.

[0015] Preferably, the rotating assembly includes a second motor fixedly mounted on the inner bottom wall of the L-shaped shell, a worm gear is fixedly mounted on the output end of the second motor, a connecting rod is installed through the fixed shell, the connecting rod and the L-shaped shell are rotatably connected, a connecting plate is fixedly mounted on the bottom of the connecting rod, and the sleeve is fixedly mounted on the bottom of the connecting plate, a worm gear is fixedly mounted on the top of the connecting rod, and the worm gear is meshingly connected to the worm gear.

[0016] The working principle and beneficial effects of the utility model are:

[0017] By setting a fixed tube, a tube rack, a round mouth, a containing tube, a shell, a circular plate, a rotating rod, a crushing knife, a driven gear and a driving structure, multiple samples or samples of different batches can be crushed and pre-processed at the same time, thereby greatly speeding up the time and progress of sample detection and analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the fixed cylinder proposed in the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the holding tube proposed in the utility model;

[0022] Figure 4 This is a three-dimensional structural schematic diagram of the rotating assembly proposed in the utility model;

[0023] Figure 5 This is a three-dimensional structural schematic diagram of the lifting assembly proposed in the utility model;

[0024] Figure 6 The utility model is a three-dimensional structural schematic diagram of the connection assembly.

[0025] In the figure: 1, base; 2, fixed tube; 3, pipe rack; 4, round mouth; 5, holding tube; 6, sleeve; 7, round plate; 8, rotating rod; 9, crushing knife; 10, driven gear;

[0026] 11. Driving structure; 1101. First motor; 1102. Driving gear;

[0027] 12. lifting assembly; 1201. fixed shell; 1202. L-shaped shell; 1203. electric telescopic rod;

[0028] 13. Rotating assembly; 1301. Second motor; 1302. Worm; 1303. Worm wheel; 1304. Connecting plate;

[0029] 14. Strip board;

[0030] 15. Connecting assembly; 1501. E-shaped plate; 1502. Screw;

[0031] 16. U-shaped plate; 17. Suction cup; 18. Exhaust pipe. DETAILED DESCRIPTION

[0032] The following will be combined with 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 of 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.

[0033] Embodiment 1

[0034] See also Figure 1 - Figure 6 A sample analysis pretreatment device comprises a base 1, a fixed cylinder 2 is fixedly mounted on the top of the base 1, a tube rack 3 is fixedly mounted on the inner wall of the fixed cylinder 2, a plurality of circular openings 4 are sequentially opened on the tube rack 3 in a circular array, and a holding tube 5 is inserted into the inner side of each of the plurality of circular openings 4;

[0035] A casing 6 is provided at the top of the fixed cylinder 2, a circular plate 7 is fixedly installed on the inner wall of the casing 6, a plurality of rotating rods 8 are sequentially arranged through the circular plate 7 in a circular array, and the rotating rods 8 are rotatably connected to the circular plate 7, a plurality of crushing knives 9 are sequentially fixedly installed on the outer walls of the plurality of rotating rods 8 from top to bottom, and the crushing knives 9 are located on the inner side of the containing tube 5, a driven gear 10 is fixedly installed on the top of the rotating rod 8, a driving structure 11 is provided on the inner side of the casing 6, and the driving structure 11 is meshedly connected with the driven gear 10;

[0036] Two strip plates 14 are fixedly mounted on the outer side walls of the plurality of holding tubes 5, a plurality of grooves are provided on the tube rack 3, and the plurality of grooves are arranged in groups of two each on the inner side of the plurality of circular openings 4, and the strip plates 14 are plugged into the grooves;

[0037] A lifting assembly 12 is disposed on the base 1 , a rotating assembly 13 is disposed inside the lifting assembly 12 , and the sleeve 6 is fixedly mounted on the rotating assembly 13 .

[0038] The utility model provides a sample analysis pretreatment device. When in use, the sample is placed in a holding tube 5. If the sample needs to be made into a slurry, an appropriate amount of water is injected into the holding tube 5. Then, a plurality of driven gears 10 meshingly connected therewith are synchronously driven by a driving structure 11, so that the rotating rods 8 in the plurality of holding tubes 5 can simultaneously drive the crushing blades 9 to crush the samples inside them for pretreatment. While crushing, the holding tubes 5 inserted in the circular opening 4 are prevented from rotating through the limiting effect of the strip plate 14 and the groove. After the crushing is completed, the sleeve 6 is driven to rise through the lifting component 12, so that the rotating rod 8 and the crushing blade 9 are withdrawn from the holding tube 5. Then, the sleeve 6 is driven to rotate through the rotating component 13, and the sleeve 6 is staggered with the fixed tube 2, so that it is convenient to manually take out the holding tube 5 from the fixed tube 2, and then it is convenient to detect and analyze the pretreated samples.

[0039] Furthermore, the driving structure 11 includes a first motor 1101 fixedly mounted on the inner top wall of the casing 6 via a mounting frame, a driving gear 1102 is fixedly mounted on the output end of the first motor 1101 , and the driving gear 1102 is meshingly connected with the driven gear 10 .

[0040] Specifically, the first motor 1101 drives the driving gear 1102 to rotate, and then the rotating driving gear 1102 is meshed with the driven gear 10, thereby simultaneously driving the plurality of rotating rods 8 and the crushing knives 9 to rotate and crush.

[0041] Furthermore, the lifting assembly 12 includes a fixed shell 1201 fixedly installed on the top of the base 1, an L-shaped shell 1202 is sleeved on the outer side of the fixed shell 1201, two electric telescopic rods 1203 are fixedly installed on the inner bottom wall of the fixed shell 1201, and the top of the electric telescopic rod 1203 is fixedly connected to the L-shaped shell 1202.

[0042] Specifically, the L-shaped shell 1202 sleeved on the outer side of the fixed shell 1201 is pushed upward by the extended electric telescopic rod 1203, thereby driving the sleeve shell 6 to rise, and then facilitating the subsequent extraction of the containing tube 5 from the fixed cylinder 2.

[0043] Furthermore, the rotating component 13 includes a second motor 1301 fixedly mounted on the inner bottom wall of the L-shaped shell 1202, a worm 1302 is fixedly mounted on the output end of the second motor 1301, a connecting rod is installed through the fixed shell 1201, the connecting rod and the L-shaped shell 1202 are rotatably connected, a connecting plate 1304 is fixedly mounted on the bottom of the connecting rod, and the sleeve 6 is fixedly mounted on the bottom of the connecting plate 1304, a worm gear 1303 is fixedly mounted on the top of the connecting rod, and the worm 1302 and the worm gear 1303 are meshingly connected.

[0044] Specifically, the second motor 1301 drives the worm 1302 to rotate, and then the rotating worm 1302 can drive the connecting rod to rotate through the worm wheel 1303 meshing with it, and then the rotating connecting rod synchronously drives the connecting plate 1304 at its bottom, so that the rising shell 6 can be staggered with the fixed cylinder 2, thereby facilitating the extraction of the containing tube 5 from the fixed cylinder 2 or the placement of the containing tube 5 into the fixed cylinder 2.

[0045] Embodiment 2

[0046] Based on the first embodiment, in this embodiment: connection components 15 are provided on both sides of the base 1, U-shaped plates 16 are provided on the two connection components 15, and two suction cups 17 are fixedly installed on the bottom of the two U-shaped plates 16.

[0047] The technical solution provided in this embodiment is: the U-shaped plate 16 and the suction cup 17 can be driven to descend manually through the connecting component 15. When the suction cup 17 contacts the placement of the base 1 such as a desktop, the U-shaped plate 16 is driven to descend manually through the connecting component 15, thereby squeezing out the air between the suction cup 17 and the placement of the desktop, so that the suction cup 17 can be firmly adsorbed on the desktop, etc., to prevent the device from moving during crushing.

[0048] Furthermore, the connecting assembly 15 includes two E-shaped plates 1501 fixedly mounted on both sides of the base 1, and two U-shaped plates 16 are respectively located on the outside of the two E-shaped plates 1501, and screws 1502 are rotatably mounted on the tops of the two E-shaped plates 1501, and the U-shaped plates 16 are threadedly connected to the outer wall of the screws 1502.

[0049] Specifically, the turntable on the screw 1502 is manually twisted to drive the screw 1502 to rotate, and then the rotating screw 1502, with the cooperation of the E-shaped plate 1501, can drive the U-shaped plate 16 threadedly connected to its outer wall to descend, so that the suction cup 17 can be firmly adsorbed on a desktop or the like.

[0050] Furthermore, an exhaust pipe 18 is fixedly mounted on the suction cup 17 , and a sealing plug is provided at the other end of the exhaust pipe 18 .

[0051] Specifically, the sealing plug at one end of the exhaust pipe 18 is manually removed so that air can enter the suction cup 17, thereby facilitating the subsequent transportation of the device.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sample analysis pretreatment device, comprising a base (1), characterized in that: A fixed cylinder (2) is fixedly mounted on the top of the base (1), a pipe rack (3) is fixedly mounted on the inner wall of the fixed cylinder (2), a plurality of circular openings (4) are sequentially opened on the pipe rack (3) in a circular array, and a containing tube (5) is inserted into the inner side of each of the plurality of circular openings (4); A casing (6) is provided at the top of the fixed cylinder (2), a circular plate (7) is fixedly mounted on the inner wall of the casing (6), a plurality of rotating rods (8) are sequentially arranged through the circular plate (7) in a circular array, and the rotating rods (8) are rotatably connected to the circular plate (7), a plurality of crushing knives (9) are sequentially fixedly mounted on the outer walls of the plurality of rotating rods (8) from top to bottom, and the crushing knives (9) are located on the inner side of the containing tube (5), a driven gear (10) is fixedly mounted on the top of the rotating rod (8), a driving structure (11) is provided on the inner side of the casing (6), and the driving structure (11) is meshingly connected to the driven gear (10); A lifting assembly (12) is arranged on the base (1), a rotating assembly (13) is arranged inside the lifting assembly (12), and the casing (6) is fixedly mounted on the rotating assembly (13).

2. A sample analysis pretreatment device according to claim 1, characterized in that: Two strip plates (14) are fixedly mounted on the outer side walls of the plurality of containing tubes (5), a plurality of grooves are provided on the tube rack (3), and the plurality of grooves are arranged in groups of two each on the inner side of the plurality of circular openings (4), and the strip plates (14) are plugged into the grooves.

3. A sample analysis pretreatment device according to claim 1, characterized in that: Connecting components (15) are provided on both sides of the base (1), U-shaped plates (16) are provided on the two connecting components (15), and two suction cups (17) are fixedly mounted on the bottoms of the two U-shaped plates (16).

4. A sample analysis pretreatment device according to claim 3, characterized in that: The connecting assembly (15) comprises two E-shaped plates (1501) fixedly mounted on both sides of the base (1), and the two U-shaped plates (16) are respectively located on the outsides of the two E-shaped plates (1501), and screw rods (1502) are rotatably mounted on the tops of the two E-shaped plates (1501), and the U-shaped plates (16) are threadedly connected to the outer side walls of the screw rods (1502).

5. A sample analysis pretreatment device according to claim 3, characterized in that: An exhaust pipe (18) is fixedly mounted on the suction cup (17), and a sealing plug is provided at the other end of the exhaust pipe (18).

6. A sample analysis pretreatment device according to claim 1, characterized in that: The driving structure (11) comprises a first motor (1101) fixedly mounted on the inner top wall of the casing (6) via a mounting frame, a driving gear (1102) fixedly mounted on the output end of the first motor (1101), and the driving gear (1102) is meshingly connected with the driven gear (10).

7. A sample analysis pretreatment device according to claim 1, characterized in that: The lifting assembly (12) comprises a fixed shell (1201) fixedly mounted on the top of the base (1); an L-shaped shell (1202) is sleeved on the outer side of the fixed shell (1201); two electric telescopic rods (1203) are fixedly mounted on the inner bottom wall of the fixed shell (1201); and the top of the electric telescopic rod (1203) is fixedly connected to the L-shaped shell (1202).

8. A sample analysis pretreatment device according to claim 7, characterized in that: The rotating assembly (13) comprises a second motor (1301) fixedly mounted on the inner bottom wall of the L-shaped shell (1202); a worm (1302) is fixedly mounted on the output end of the second motor (1301); a connecting rod is installed through the fixed shell (1201); the connecting rod and the L-shaped shell (1202) are rotatably connected; a connecting plate (1304) is fixedly mounted on the bottom of the connecting rod; the sleeve (6) is fixedly mounted on the bottom of the connecting plate (1304); a worm wheel (1303) is fixedly mounted on the top of the connecting rod; and the worm (1302) and the worm wheel (1303) are meshingly connected.

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