CN216082620U

CN216082620U - High performance liquid chromatograph for food detection

Info

Publication number: CN216082620U
Application number: CN202122438326.0U
Authority: CN
Inventors: 姚志强; 南京
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-03-18
Anticipated expiration: 2031-10-09

Abstract

The utility model provides a high performance liquid chromatograph for food detection, and relates to the technical field of food detection. The automatic sample injector comprises a support, wherein the support comprises a base, a movable wheel is fixedly connected to the bottom of the base, a supporting column is fixedly connected to the top angle of the base, the supporting column is movably connected with a partition plate, a solvent bottle, a detector, a pump, an online degasser, a controller, an automatic sample injector and a column incubator are arranged on the partition plate, and a damping base is arranged at the bottom of the pump. The device can be integrally stored and moved, is more convenient and tidy, cannot interfere with modules, can adjust the distance between the partition plates according to the size of each module, has better applicability, can be used for fixing and storing circuits, prevents the circuits from being disordered, can be used for hermetically collecting waste liquid generated by the detector, prevents the waste liquid from volatilizing into a detection environment to influence a detection result, can be used for buffering vibration generated by the pump, and can be used for preventing the vibration from generating noise and damaging parts of other modules.

Description

High performance liquid chromatograph for food detection

Technical Field

The utility model provides a high performance liquid chromatograph for food detection, and relates to the technical field of food detection.

Background

The High Performance Liquid Chromatograph (HPLC) is an important branch of the chromatograph, which takes liquid as a mobile phase and adopts an analytical separation technology of a high-pressure infusion system. The sample analyzed by the high performance liquid chromatograph is liquid and is not limited by the volatility of the sample. At present, high performance liquid chromatography is widely applied to the aspects of separating, analyzing and purifying organic compounds, plays an extremely important role in food detection, and can detect food additives, pollutants in food, toxins generated in the processing and storage processes, drug residues in food and illegal added components in food. The basic modules of the high-efficiency liquid chromatograph comprise a solvent bottle, a pump, an automatic sample injector, a chromatographic column, a detector, a recorder and the like, and because the modules of the high-efficiency liquid chromatograph are mutually independent, the placing position can be adjusted according to the field situation when the high-efficiency liquid chromatograph is installed and used, and the modules can be added according to different requirements of a user in the using process, such as a plurality of pumps or a mass spectrometer, therefore, the high-efficiency liquid chromatograph can be flexibly matched according to the using requirements, but also causes problems, the modules are directly stacked together, the bottommost module bears great pressure, circuits are connected among the modules to be staggered and disordered, the mutual independence of the modules also causes more time to be spent when the modules need to be moved, waste liquid generated in detection is collected by adopting an open collecting bottle without sealing, and has no protective measures, and the waste liquid is easy to volatilize, so that the monitoring environment is polluted, and the detection result is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides the high performance liquid chromatograph for food detection, the modules can be independently placed without mutual influence, the circuits of the modules are accommodated and fixed, the circuits can be arranged in order, the high performance liquid chromatograph can be moved integrally, convenience and rapidness are realized, waste liquid generated by detection is collected in a sealed manner, and the detection environment is not polluted.

The utility model provides a high performance liquid chromatograph for food detection, which comprises a support, wherein the support comprises a base, the bottom of the base is fixedly connected with a moving wheel, a supporting column is fixedly connected at the vertex angle of the base, the supporting column is movably connected with a partition plate, a limiting ring is arranged at the vertex angle of the partition plate, the limiting ring is sleeved outside the supporting column and is in sliding connection with the supporting column, a cavity is arranged in the partition plate, a transmission rod is arranged in the cavity, two ends of the transmission rod are symmetrically hinged with an L-shaped rod I, one end of the L-shaped rod I, which is far away from the transmission rod, penetrates through the bottom surface of the partition plate and is hinged with an inserted rod, a fixed block is hinged at one corner of the L-shaped rod I, the fixed block is fixedly connected with the inner wall of the partition plate, a pressing rod is fixedly connected at the center of the transmission rod, the pressing rod penetrates through the bottom surface of the partition plate downwards, a wire fixing device is movably connected to the side surface of the partition plate, a solvent bottle and a wire fixing device are arranged on the partition plate, Detector, pump, online degasser, controller, autoinjector, column incubator, the pump bottom is equipped with vibration damping mount, vibration damping mount includes upper cover and lower cover, the upper cover is on the lower cover, the top rigid coupling has trapezoidal voussoir in the upper cover, trapezoidal voussoir both sides rigid coupling has the lug, lug sliding connection has the down tube, one side that trapezoidal voussoir was kept away from to the down tube articulates there is the connecting rod, one side that the down tube was kept away from to the connecting rod articulates there is the slider, slider sliding connection has L type pole two, two both ends of L type pole all with lower cover inner wall rigid coupling, the rigid coupling has spring one between slider and the lower cover lateral wall, spring cup joints on L type pole two, one side rigid coupling that upper cover top inner wall was kept away from to trapezoidal voussoir has spring two, spring two keep away from the one end and the lower cover bottom inner wall rigid coupling of trapezoidal voussoir.

The support column side rigid coupling has a waste liquid collecting cylinder, the waste liquid collecting cylinder articulates there is sealed lid, and sealed lid intercommunication has the inlet tube.

The wire fixing device is characterized in that a wire inlet is formed in the top of the wire fixing device, the wire inlet is communicated with a containing groove downwards, a round shaft is arranged on one side, close to the partition plate, of the wire fixing device, one end, far away from the wire fixing device, of the round shaft is rotatably connected with a roller, and a sliding groove matched with the roller is formed in the side face of the partition plate.

The lateral wall of the support column is provided with a socket matched with the inserted rod.

The top of the upper cover is fixedly connected with a limiting block, and the limiting block is L-shaped.

And one side of the inclined rod, which is close to the bump, is provided with a sliding rail matched with the bump.

And the top of the support is provided with a surrounding baffle.

The utility model has the beneficial effects that:

the utility model provides a high performance liquid chromatograph for food detection, which can be integrally stored and moved by arranging a bracket and a moving wheel, is more convenient and tidy, and modules cannot interfere with each other; through the arrangement of the inserted link and the socket, the partition plate can adjust the distance according to the size of each module of the high performance liquid chromatograph, and the applicability is better; the line fixing device is arranged, so that the line of the high-performance liquid chromatograph can be fixed and stored, and the disorder of the line is prevented; by arranging the waste liquid collecting cylinder, the waste liquid generated by the detector can be collected in a sealing manner, so that the waste liquid is prevented from volatilizing into a detection environment to influence a detection result; through vibration damping mount's setting, can cushion the vibrations that the pump produced, prevent that vibrations from producing the noise and causing the damage to the spare part of other modules.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a high performance liquid chromatograph for food detection according to the present invention.

Fig. 2 is a schematic diagram of a partition structure of a high performance liquid chromatograph for food detection according to the present invention.

Fig. 3 is a bottom view of the internal structure of a partition of a high performance liquid chromatograph for food detection according to the present invention.

Fig. 4 is a schematic structural diagram of a high performance liquid chromatograph a for food detection according to the present invention.

Fig. 5 is a schematic structural diagram of a wire fixing device of a high performance liquid chromatograph for food detection according to the present invention.

Fig. 6 is a schematic structural diagram of a vibration damping mount of a high performance liquid chromatograph for food detection according to the present invention.

(1, solvent bottle; 2, detector; 3, pump; 4, online degasser; 5, controller; 6, autosampler; 7, column incubator; 8, moving wheel; 9, thread fixer; 10, partition board; 11, support column; 12, waste liquid collection cylinder; 13, sealing cover; 14, thread inlet pipe; 15, enclosure; 16, inserted rod; 17, L-shaped rod I; 18, pressing rod; 19, fixing block; 20, socket; 21, thread inlet; 22, accommodating groove; 23, circular shaft; 24, roller; 25, limiting block; 26, upper cover; 27, lower cover; 28, spring I; 29, sliding block; 30, L-shaped rod II; 31, diagonal rod; 32, spring II; 33, connecting rod; 34, trapezoidal wedge; 35, limiting ring; 36, base; 37, transmission rod)

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides a high performance liquid chromatograph for food detection, which comprises a support, wherein the support comprises a base 36, a moving wheel 8 is fixedly connected to the bottom of the base 36, a supporting column 11 is fixedly connected to a vertex angle of the base 36, the supporting column 11 is movably connected to a partition 10, a limiting ring 35 is arranged at the vertex angle of the partition 10, the limiting ring 35 is sleeved outside the supporting column 11 and is in sliding connection with the supporting column 11, a cavity is arranged in the partition 10, as shown in fig. 2 and 3, a transmission rod 37 is arranged in the cavity, L-shaped rods 17 are symmetrically hinged to two ends of the transmission rod 37, one end of each L-shaped rod 17, which is far away from the transmission rod 37, penetrates through the bottom surface of the partition 10 and is hinged with an inserted rod 16, the L-shaped rod 17 is hinged with a fixed block 19, the fixed block 19 is fixedly connected to the inner wall of the partition 10, a pressing rod 18 is fixedly connected to the central position of the transmission rod 37, the pressing rod 18 downwards penetrates through the bottom surface of the partition board 10, the side surface of the partition board 10 is movably connected with a wire fixing device 9, the partition board 10 is provided with a solvent bottle 1, a detector 2, a pump 3, an online degasser 4, a controller 5, an automatic sample injector 6 and a column incubator 7, the bottom of the pump 3 is provided with a damping base, as shown in figure 6, the damping base comprises an upper cover 26 and a lower cover 27, the upper cover 26 covers the lower cover 27, a trapezoidal wedge block 34 is fixedly connected to the inner top of the upper cover 26, bumps are fixedly connected to two sides of the trapezoidal wedge block 34, an inclined rod 31 is slidably connected with the bumps, one side of the inclined rod 31, which is far away from the trapezoidal wedge block 34, is hinged with a connecting rod 33, one side of the connecting rod 33, which is far away from the inclined rod 31, is hinged with a sliding block 29, the sliding block 29 is slidably connected with a second L-shaped rod 30, two ends of the second L-shaped rod 30 are fixedly connected with the inner wall of the lower cover 27, a first spring 28 is fixedly connected between the sliding block 29 and the side wall of the lower cover 27, the first spring 28 is sleeved on the second L-shaped rod 30, a second spring 32 is fixedly connected to one side of the trapezoidal wedge 34 away from the top inner wall of the upper cover 26, and one end of the second spring 32 away from the trapezoidal wedge 34 is fixedly connected with the bottom inner wall of the lower cover 27.

According to the utility model, a waste liquid collecting cylinder 12 is fixedly connected to the side surface of the supporting column 11, a sealing cover 13 is hinged to the waste liquid collecting cylinder 12, and the sealing cover 13 is communicated with an inlet pipe 14.

As shown in fig. 5, in the present invention, a wire inlet 21 is formed at the top of the wire fixing device 9, the wire inlet 21 is downwardly communicated with a receiving groove 22, a circular shaft 23 is arranged at one side of the wire fixing device 9 close to the partition plate 10, one end of the circular shaft 23 far from the wire fixing device 9 is rotatably connected with a roller 24, and a sliding groove matched with the roller 24 is formed at the side of the partition plate 10.

As shown in FIG. 4, the side wall of the support post 11 of the present invention is provided with a socket 20 matching with the insert rod 16.

The top of the upper cover 26 is fixedly connected with a limiting block 25, and the limiting block 25 is L-shaped.

In the utility model, a slide rail matched with the convex block is arranged on one side of the inclined rod 31 close to the convex block.

The top of the bracket is provided with a surrounding baffle 15.

The working principle is as follows: when the device is used, the pressing rod 18 is pressed upwards, the L-shaped rod I17 is driven to tilt upwards through the pressing rod 18, so that the inserted rod 16 is driven to be separated from the socket 20, the partition board 10 can move up and down, the distance between the partition boards 10 is adjusted according to the size of a module of a high performance liquid chromatograph, and the limiting ring 35 plays a role in guiding and limiting in the moving process of the partition board 10; the pressing rod 18 is pulled downward so that the insertion rod 16 is inserted into the insertion hole 20, thereby fixing the position of the partition board 10. After adjusting the distance between each baffle 10, put into each module of high performance liquid chromatograph, put into the line from inlet 21 and accomodate the groove 22 in, accomodate and fix the line, can effectively avoid the line to be mixed and disorderly, solidus ware 9 can slide in the spout through gyro wheel 24, and the adjusting position, the suitability is stronger. The fender 15 that encloses at support top can play the guard action to solvent bottle 1, when collecting the waste liquid, puts into waste liquid collecting cylinder 12 with the waste liquid collecting cylinder, communicates the collecting pipe through inlet tube 14 and waste liquid collecting cylinder mutually, seals through sealed lid 13, prevents that the waste liquid from volatilizing to the detection ring border in. If the high performance liquid chromatograph needs to be moved, the bracket only needs to be pushed, and then the whole movement can be carried out.

High performance liquid chromatograph is in the use, and pump 3 can produce certain vibrations, consequently carries out the shock attenuation to pump 3 through vibration damping mount, prevents that vibrations from causing the influence to other modules. The pump 3 is arranged between the limiting blocks 25, the pump 3 is fixed, and when the pump 3 vibrates in use, the trapezoidal wedge block 34 is driven by the upper cover 26 to move up and down, so that the second spring 32 is extruded or stretched; meanwhile, the convex blocks on the two sides of the trapezoidal wedge 34 slide up and down in the slide rails on the inclined rod 31, so that the inclined rod 31 pushes the connecting rod 33 to drive the sliding block 29 to extrude or stretch the first spring 28, and the damping effect is achieved.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A high performance liquid chromatograph for food detection, characterized by: which comprises a bracket, the support includes base (36), base (36) bottom rigid coupling has removal wheel (8), base (36) apex angle department rigid coupling has support column (11), support column (11) swing joint baffle (10), the apex angle department of baffle (10) is equipped with spacing ring (35), spacing ring (35) cup joint outside support column (11) and with support column (11) sliding connection, be equipped with the cavity in baffle (10), be equipped with transfer line (37) in the cavity, transfer line (37) both ends all symmetry hinge have L type pole (17), the one end that transfer line (37) were kept away from to L type pole (17) runs through baffle (10) bottom surface and articulates has inserted bar (16), L type pole (17) articulate has fixed block (19), fixed block (19) and baffle (10) inner wall rigid coupling, transfer line (37) central point puts the rigid coupling and has pressing rod (18), the utility model discloses a specimen analysis device, including pressing rod (18), baffle (10) bottom surface is run through downwards to pressing rod (18), baffle (10) side swing joint has solidus ware (9), be equipped with solvent bottle (1), detector (2), pump (3), online degasser (4), controller (5), autoinjector (6), column incubator (7) on baffle (10), pump (3) bottom is equipped with vibration damping mount, vibration damping mount includes upper cover (26) and lower cover (27), upper cover (26) cover on lower cover (27), the top rigid coupling has trapezoidal voussoir (34) in upper cover (26), trapezoidal voussoir (34) both sides rigid coupling has the lug, lug sliding connection has down tube (31), one side that trapezoidal voussoir (34) was kept away from in down tube (31) articulates there is connecting rod (33), one side that down tube (31) was kept away from in connecting rod (33) articulates there is slider (29), slider (29) sliding connection has two (30) of L type pole, two (30) both ends of L type pole all with lower cover (27) inner wall rigid coupling, the rigid coupling has spring (28) between slider (29) and lower cover (27) lateral wall, spring (28) cup joint on two (30) of L type pole, one side rigid coupling that upper cover (26) top inner wall was kept away from in trapezoidal voussoir (34) has spring two (32), the one end and lower cover (27) bottom inner wall rigid coupling that trapezoidal voussoir (34) was kept away from in spring two (32).

2. The high performance liquid chromatograph for food detection according to claim 1, wherein: the support column (11) side rigid coupling has waste liquid collecting cylinder (12), waste liquid collecting cylinder (12) articulates there is sealed lid (13), and sealed lid (13) intercommunication has inlet tube (14).

3. The high performance liquid chromatograph for food detection according to claim 1, wherein: solidus ware (9) top is opened there is inlet (21), inlet (21) communicates downwards and has accomodate groove (22), one side that solidus ware (9) are close to baffle (10) is equipped with circle axle (23), the one end rotation that solidus ware (9) were kept away from in circle axle (23) is connected with gyro wheel (24), baffle (10) side is opened have with gyro wheel (24) assorted spout.

4. The high performance liquid chromatograph for food detection according to claim 1, wherein: the side wall of the supporting column (11) is provided with a socket (20) matched with the inserted rod (16).

5. The high performance liquid chromatograph for food detection according to claim 1, wherein: a limiting block (25) is fixedly connected to the top of the upper cover (26), and the limiting block (25) is L-shaped.

6. The high performance liquid chromatograph for food detection according to claim 1, wherein: one side of the inclined rod (31) close to the convex block is provided with a sliding rail matched with the convex block.

7. The high performance liquid chromatograph for food detection according to claim 1, wherein: the top of the bracket is provided with a surrounding baffle (15).