CN216847638U

CN216847638U - Chromatograph for food detection

Info

Publication number: CN216847638U
Application number: CN202220287387.3U
Authority: CN
Inventors: 刘合超; 许杰
Original assignee: China Technology Union Scientific Instrument Co ltd
Current assignee: China Technology Union Scientific Instrument Co ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-06-28
Anticipated expiration: 2032-02-14

Abstract

The utility model relates to a food detection technology field just discloses a food detects uses chromatograph, include: chromatograph body and small-size steam generator, the top fixedly connected with link of chromatograph body, the interior roof fixedly connected with cylinder of link, the interior diapire fixedly connected with hydraulic cylinder of link, the output fixedly connected with initiative piston of cylinder, small-size steam generator's the thermal-insulated steam hose of output fixedly connected with, the outer wall fixedly connected with hydraulic drive pipe of hydraulic cylinder, the one end fixedly connected with three-way pipe of hydraulic cylinder is kept away from to the hydraulic drive pipe. This chromatograph for food detection can be through the activity of the flexible control initiative piston of control cylinder, then utilizes the activity of the hydraulic drive control slave piston of hydraulic drive pipe to realize the suction and the discharge of the inside liquid of sampling tube to realize the sample of sampling tube, avoided taking out the manual sample of syringe outward, reduced the restriction condition, improved the convenience.

Description

Chromatograph for food detection

Technical Field

The utility model relates to a food detects technical field, specifically is a food detects uses chromatograph.

Background

A chromatograph is a device for chromatographic separation analysis and comprises a sample introduction system, a detection system, a recording and data processing system, a temperature control system, a mobile phase control system and the like, and the modern chromatograph has the characteristics of high stability, sensitivity, versatility, high automation degree and the like. There are gas chromatography, liquid chromatography, gel chromatography, and the like, which are widely used for chemical products, analysis of a certain content of a polymer material, and gel chromatography, which is also capable of measuring the molecular weight and distribution of the polymer material.

Need use the chromatograph when carrying out food safety inspection, when utilizing liquid chromatograph to take a sample, because general liquid chromatograph does not mostly have from taking sampling device, need utilize the syringe to take a sample, the waste that causes is great, and has restricted certain service condition, and the convenience is relatively poor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a chromatograph for food detection has solved the problem that mentions in the above-mentioned background.

The utility model provides a following technical scheme: a chromatograph for food detection, comprising: the chromatograph comprises a chromatograph body and a small-sized steam generator, wherein the top of the chromatograph body is fixedly connected with a connecting frame, the inner top wall of the connecting frame is fixedly connected with a cylinder, the inner bottom wall of the connecting frame is fixedly connected with a hydraulic cylinder, the output end of the cylinder is fixedly connected with a driving piston, the output end of the small-sized steam generator is fixedly connected with a heat-insulating steam hose, the outer wall of the hydraulic cylinder is fixedly connected with a hydraulic transmission pipe, one end of the hydraulic transmission pipe, far away from the hydraulic cylinder, is fixedly connected with a three-way pipe, one side of the three-way pipe is provided with a sampling cylinder, the bottom of the three-way pipe is fixedly connected with a heat-insulating steam pipe, the top of the sampling cylinder is provided with a piston cylinder, the inner wall of the piston cylinder is connected with a driven piston in a sliding manner, the inner wall of the piston cylinder is fixedly connected with a flow stopping hopper, and one end of the sampling cylinder, far away from the piston cylinder, is connected with an integral sampling needle, the bottom of the flow stopping hopper is integrally connected with an extension pipe.

Preferably, the outer wall of sampler barrel is provided with the connecting pipe, and the sampler barrel passes through connecting pipe and three-way pipe fixed connection, and the valve is installed to the outer wall of connecting pipe, the outer wall of stagnant flow fill and the outer wall of sampler barrel all run through and have seted up the steam hole, and the steam hole is linked together with the connecting pipe.

Preferably, the outer wall of the sampling tube is fixedly sleeved with an air pocket tube, the outer wall of the air pocket tube is fixedly connected with one end, away from the three-way pipe, of the heat insulation steam pipe, and the outer wall of the sampling needle penetrates through the liquid through hole.

Preferably, the outer wall of the driving piston is in sliding connection with the inner wall of the hydraulic cylinder, and one side of the connecting frame is fixedly connected with one side of the small-sized steam generator.

Preferably, the outer wall of the sampling cylinder is fixedly sleeved with the connecting ring, the inner wall of the connecting ring is fixedly connected with the outer wall of the piston cylinder, the inner wall of the sampling cylinder is fixedly connected with the outer wall of the flow stopping hopper, the outer wall of the piston cylinder is fixedly sleeved with the connecting cylinder, and the piston cylinder is fixedly connected with one end, far away from the hydraulic cylinder, of the heat insulation steam hose through the connecting cylinder.

Preferably, the outer wall of epitaxial tube runs through and has seted up logical liquid mouth, and the outer wall fixedly connected with pocket gas bowl of epitaxial tube, and the inner wall integral type of pocket gas bowl is connected with the air guide ring, and the lower surface of pocket gas bowl runs through and has seted up the hole that leaks, and the hole that leaks is located the below of air guide ring.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this chromatograph for food detection, chromatograph body through setting up, small-size steam generator, the link, the cylinder, the hydraulic cylinder, the initiative piston, thermal-insulated steam hose, the hydraulic drive pipe, the three-way pipe, the sampling tube, thermal-insulated steam pipe, the piston cylinder, driven piston, the stagnant flow fill, sample needle and epitaxial tube, the activity of flexible control initiative piston through the control cylinder, then the suction and the discharge of the inside liquid of sampling tube are realized to the activity of the hydraulic drive control driven piston who utilizes the hydraulic drive pipe, thereby realize the sample of sampling tube, the manual sample of outer syringe has been avoided, restriction conditions have been reduced, convenience has been improved.

2. This chromatograph for food detection, small-size steam generator through setting up, thermal-insulated steam hose, the three-way pipe, the sampler barrel, thermal-insulated steam pipe, the piston cylinder, the pocket gas cylinder, the through-flow hole, pocket gas bowl, lead gas ring and the hole that leaks, be convenient for accomplish the back at the device sample, utilize the steam of small-size steam generator output to clean and disinfect inside and outside the sampler barrel and the sampling needle, be convenient for device cyclic utilization, the material waste has been reduced, utilize simultaneously only class fill and epitaxial tube outside the sampler barrel, sample liquid pollution piston cylinder has been avoided, make sample liquid only preserve when the sample at the sampler lower extreme, the clean nature of device has further been improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection structure between the small steam generator and the connection frame;

FIG. 3 is a schematic view of the internal explosion structure of the connecting frame of the present invention;

FIG. 4 is a schematic view of the structure of the connecting ring of the present invention;

FIG. 5 is a schematic view of the inner explosion structure of the sampling tube of the present invention;

FIG. 6 is a schematic side sectional view of the sampling tube of the present invention;

FIG. 7 is an enlarged view of the point A of FIG. 6 according to the present invention;

fig. 8 is an enlarged view of the point B in fig. 6 according to the present invention.

In the figure: 1. a chromatograph body; 2. a small-sized steam generator; 3. a connecting frame; 4. a cylinder; 5. a hydraulic cylinder; 6. an active piston; 7. an insulated steam hose; 8. a hydraulic transmission pipe; 9. a three-way pipe; 10. a sampling tube; 11. a heat-insulating steam pipe; 12. a piston cylinder; 13. a slave piston; 14. a flow stopping hopper; 15. a sampling needle; 16. an extension tube; 17. a valve; 18. a steam vent; 19. an air pocket cylinder; 20. a liquid through hole; 21. a connecting cylinder; 22. a connecting ring; 23. a liquid through port; 24. a gas-containing bowl; 25. a gas guide ring; 26. and (4) water leakage holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 8, a chromatograph for food detection includes: the chromatograph comprises a chromatograph body 1, a small-sized steam generator 2, the steam generator is also called a steam heat source machine, mechanical equipment for heating water into hot water or steam by utilizing heat energy of fuel or other energy sources, the original meaning of a pot is a water container heated on fire, the furnace is a place for burning the fuel, the boiler comprises two parts of the pot and the furnace, the top of the chromatograph body 1 is fixedly connected with a connecting frame 3, the inner top wall of the connecting frame 3 is fixedly connected with a cylinder 4, the inner bottom wall of the connecting frame 3 is fixedly connected with a hydraulic cylinder 5, the output end of the cylinder 4 is fixedly connected with an active piston 6, the output end of the small-sized steam generator 2 is fixedly connected with a heat-insulating steam hose 7, the outer wall of the hydraulic cylinder 5 is fixedly connected with a hydraulic transmission pipe 8, one end of the hydraulic transmission pipe 8, far away from the hydraulic cylinder 5, is fixedly connected with a three-way pipe 9, one side of the three-way pipe 9 is provided with a sampling cylinder 10, and the bottom of the three-way pipe 9 is fixedly connected with a heat-insulating steam pipe 11, the top of the sampling cylinder 10 is provided with a piston cylinder 12, the inside of the hydraulic cylinder 5, the inside of the heat-insulating steam hose 7 and the inside of the piston cylinder 12 are all provided with hydraulic oil so as to facilitate hydraulic transmission, the inner wall of the piston cylinder 12 is connected with a driven piston 13 in a sliding manner, the inner wall of the piston cylinder 12 is fixedly connected with a flow stopping bucket 14, one end of the sampling cylinder 10 far away from the piston cylinder 12 is integrally connected with a sampling needle 15, the bottom of the flow stopping bucket 14 is integrally connected with an extension pipe 16, the movement of the driving piston 6 can be controlled by controlling the expansion and contraction of the cylinder 4 through the arranged chromatograph body 1, the small-sized steam generator 2, the connecting frame 3, the cylinder 4, the hydraulic cylinder 5, the driving piston 6, the heat-insulating steam hose 7, the hydraulic transmission pipe 8, the three-way pipe 9, the sampling cylinder 10, the heat-insulating steam pipe 11, the piston cylinder 12, the driven piston 13, the flow stopping bucket 14, the sampling needle 15 and the extension pipe 16, the movement of the driving piston 6 can be controlled by controlling the movement of the driven piston 13 through the hydraulic transmission of the hydraulic transmission pipe 8, so as to realize the movement of the liquid inside the sampling cylinder 10 The body is sucked and discharged, so that the sampling of the sampling tube 10 is realized, the manual sampling of an external syringe is avoided, the limiting condition is reduced, and the convenience is improved.

Wherein; the outer wall of the sampling tube 10 is provided with a connecting pipe, the sampling tube 10 is fixedly connected with the three-way pipe 9 through the connecting pipe, the valve 17 is installed on the outer wall of the connecting pipe, the outer wall of the flow stopping bucket 14 and the outer wall of the sampling tube 10 are both provided with steam holes 18 in a penetrating mode, and the steam holes 18 are communicated with the connecting pipe, so that the on-off between the three-way pipe 9 and the sampling tube 10 can be controlled.

Wherein; the outer wall of the sampling tube 10 is fixedly sleeved with the gas pocket tube 19, the outer wall of the gas pocket tube 19 is fixedly connected with one end, far away from the three-way pipe 9, of the heat insulation steam pipe 11, the outer wall of the sampling needle 15 is provided with a liquid through hole 20 in a penetrating mode, and after sampling of the device is completed, the inner portion of the sampling tube 10 and the inner portion and the outer portion of the sampling needle 15 are cleaned and disinfected by steam output by the small steam generator 2 through the arranged small steam generator 2, the heat insulation steam hose 7, the three-way pipe 9, the sampling tube 10, the heat insulation steam pipe 11, the piston tube 12, the gas pocket tube 19, the liquid through hole 23, the gas pocket bowl 24, the gas guide ring 25 and the water leakage hole 26.

Wherein; the outer wall of the driving piston 6 is connected with the inner wall of the hydraulic cylinder 5 in a sliding mode, and one side of the connecting frame 3 is fixedly connected with one side of the small-sized steam generator 2, so that the sampling cylinder 10 is controlled to lift by the aid of the driving piston 6 to take and place liquid samples.

Wherein; the outer wall of sampler barrel 10 is fixed to be cup jointed with go-between 22, and the inner wall of go-between 22 and the outer wall fixed connection of piston barrel 12, and the inner wall of sampler barrel 10 and the outer wall fixed connection of stagnant flow fill 14, and the outer wall of piston barrel 12 is fixed to be cup jointed with connecting cylinder 21, and piston barrel 12 keeps away from the one end fixed connection of hydraulic cylinder 5 through connecting cylinder 21 and thermal-insulated steam hose 7, so that utilize go-between 22 to be connected sampler barrel 10 and piston barrel 12, utilize connecting cylinder 21 to be connected piston barrel 12 and thermal-insulated steam hose 7.

Wherein; the outer wall of epitaxial tube 16 runs through and has seted up logical liquid mouth 23, and the outer wall fixedly connected with pocket gas bowl 24 of epitaxial tube 16, and the inner wall integral type of pocket gas bowl 24 is connected with air guide ring 25, and the lower surface of pocket gas bowl 24 runs through and has seted up hole 26 that leaks, and hole 26 that leaks is located air guide ring 25's below, utilize stagnant flow fill 14 and epitaxial tube 16 at the inside epitaxy of sampler barrel 10, sample liquid pollution piston cylinder 12 has been avoided, make sample liquid only remain at sampler barrel 10 lower extreme when the sample, the cleanliness factor of the device has further been improved.

The working principle is that when sampling, a sampling needle 15 is inserted into sample liquid, a cylinder 4 is started, the cylinder 4 contracts to drive the inner space of a hydraulic cylinder 5 to increase so that hydraulic oil moves towards the hydraulic cylinder 5, the pressure above a driven piston 13 is reduced to slide upwards, when the driven piston 13 slides upwards, the air pressure inside a sampling cylinder 10 is reduced to suck liquid, so that the liquid is reserved at the bottom end of the sampling cylinder 10, then the sampling needle 15 is inserted into a liquid detection position of the device to guide air reversely for the cylinder 4, the cylinder 4 extends to drive the inner space of the hydraulic cylinder 5 to compress so that the hydraulic oil is discharged outside the hydraulic cylinder 5, the pressure above the driven piston 13 is increased to slide downwards, when the driven piston 13 slides downwards, the air pressure inside the sampling cylinder 10 is increased to discharge the liquid, when cleaning, a valve 17 is opened, a small-sized steam generator 2 is started, the small-sized steam generator 2 conveys water vapor to a three-way pipe 9 through a heat insulation steam hose 7, and a part of the water vapor enters the sampling cylinder 10, the other part of the water vapor enters the gas pocket tube 19 through the heat insulation steam tube 11 and is discharged from the gas pocket tube 19, the water vapor cleans and sterilizes the outer wall of the sampling needle 15 at high temperature when being discharged from the gas pocket tube 19, the water vapor enters the sampling tube 10 and then enters the flow stopping hopper 14, the water vapor is discharged from the liquid through hole 23 to the inside of the sampling tube 10 through the extension tube 16 due to the blocking of the driven piston 13, and due to the diversion of the gas pocket bowl 24 and the gas guide ring 25, the condensed water is discharged from the water leakage hole 26 at the same time, and the water vapor is sprayed upwards to sterilize the inside of the sampling tube 10 and then is sprayed out from the sampling needle 15 to sterilize and clean the sampling needle.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A chromatograph for food detection, comprising: the device comprises a chromatograph body (1) and a small-sized steam generator (2), wherein a connecting frame (3) is fixedly connected to the top of the chromatograph body (1), a cylinder (4) is fixedly connected to the inner top wall of the connecting frame (3), a hydraulic cylinder (5) is fixedly connected to the inner bottom wall of the connecting frame (3), an active piston (6) is fixedly connected to the output end of the cylinder (4), a heat-insulating steam hose (7) is fixedly connected to the output end of the small-sized steam generator (2), a hydraulic transmission pipe (8) is fixedly connected to the outer wall of the hydraulic cylinder (5), a three-way pipe (9) is fixedly connected to one end, far away from the hydraulic cylinder (5), of the hydraulic transmission pipe (8), a sampling cylinder (10) is arranged on one side of the three-way pipe (9), a heat-insulating steam pipe (11) is fixedly connected to the bottom of the three-way pipe (9), and a piston cylinder (12) is arranged at the top of the sampling cylinder (10), the sampling device is characterized in that a driven piston (13) is connected to the inner wall of the piston cylinder (12) in a sliding mode, a flow stopping hopper (14) is fixedly connected to the inner wall of the piston cylinder (12), a sampling needle (15) is integrally connected to one end, far away from the piston cylinder (12), of the sampling cylinder (10), and an extension pipe (16) is integrally connected to the bottom of the flow stopping hopper (14).

2. The chromatograph for food detection according to claim 1, wherein a connecting pipe is provided on an outer wall of the sampling cylinder (10), the sampling cylinder (10) is fixedly connected to the three-way pipe (9) through the connecting pipe, a valve (17) is installed on the outer wall of the connecting pipe, steam holes (18) are formed through an outer wall of the flow stopping funnel (14) and an outer wall of the sampling cylinder (10), and the steam holes (18) are communicated with the connecting pipe.

3. The chromatograph for food detection according to claim 1, wherein the outer wall of the sampling tube (10) is fixedly sleeved with a gas pocket tube (19), the outer wall of the gas pocket tube (19) is fixedly connected with the end of the thermal insulation steam tube (11) far away from the three-way tube (9), and the outer wall of the sampling needle (15) is provided with a liquid through hole (20) therethrough.

4. The chromatograph for food detection according to claim 1, wherein the outer wall of the active piston (6) is slidably connected to the inner wall of the hydraulic cylinder (5), and one side of the connecting frame (3) is fixedly connected to one side of the small-sized steam generator (2).

5. The chromatograph for food detection according to claim 1, wherein the outer wall of the sampling cylinder (10) is fixedly sleeved with the connecting ring (22), the inner wall of the connecting ring (22) is fixedly connected with the outer wall of the piston cylinder (12), the inner wall of the sampling cylinder (10) is fixedly connected with the outer wall of the flow stopping funnel (14), the outer wall of the piston cylinder (12) is fixedly sleeved with the connecting cylinder (21), and the piston cylinder (12) is fixedly connected with one end of the heat insulation steam hose (7) away from the liquid cylinder (5) through the connecting cylinder (21).

6. The chromatograph according to claim 1, wherein the outer wall of the extension tube (16) has a liquid inlet (23) formed therethrough, the outer wall of the extension tube (16) is fixedly connected with a gas-containing bowl (24), the inner wall of the gas-containing bowl (24) is integrally connected with a gas-guiding ring (25), the lower surface of the gas-containing bowl (24) has water leakage holes (26) formed therethrough, and the water leakage holes (26) are located below the gas-guiding ring (25).