Device for measuring migration amount of diclofenac in food contact material

Abstract

The utility model discloses a device for measuring the migration amount of dichlorphenol in a food contact material, and relates to the technical field of food safety detection, in particular to a device for measuring the migration amount of dichlorphenol in a food contact material, which comprises a measuring disc assembly, the measuring disc assembly comprises a measuring disc body, and an inner flange is arranged on the inner side of the upper part of the measuring disc body; an outer clamping edge is arranged on the outer side of the upper portion of the measuring disc body, positioning tool inserting holes are formed in the periphery of the bottom of the measuring disc body, spring positioning columns are fixedly connected to the lower portion of the measuring disc body, and a positioning tool assembly is inserted into the upper portions of the positioning tool inserting holes. According to the device for measuring the migration amount of the diclofen in the food contact material, through the cooperative arrangement of the measuring disc assembly, the measuring cover assembly, heat insulation cotton and reflective paper, the device for measuring the migration amount of the diclofen in the food contact material has the effect of simulating measurement of various environments; therefore, the device for measuring the migration amount of the diclofen in the food contact material has the effect of improving the measuring efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to food safety detection technical field, concretely is a kind of dichlorophen migration quantity determination device in food contact material. BACKGROUND

[0002] Dichlorophen (Dichlorophen DDM, C13H10Cl2O2) is white crystal structure and exists hydroxyl and benzene ring, has oxidation resistance and light stability to some extent, therefore, be used as additive in plastic and coating product, GB9685 is defined and is allowed to use in PP, PE, PS, PVC, PA, PC, ABS, AS, PET, UP and adhesive, but DDM has moderate toxicity, oral-rat LD50:1506 mg / kg;Oral-mouse LD50:1000 mg / kg, its combustion can produce toxic chlorinated compound gas, and have swallowing toxicity, national standard GB 9685-2015 table A.1, table A.5 and (EU)10 / 2010 are defined and the specific migration quantity of the substance is 12 mg / kg, therefore, there is security risk in using dichlorophen in food contact material, and it is necessary to determine the dichlorophen migration quantity of food contact material added with dichlorophen, and most of the dichlorophen migration quantity determination is carried out by experimental personnel in constant-temperature laboratory, and food complex and changeable storage environment, such as high temperature environment, ultraviolet disinfection environment and dynamic storage environment, are not simulated, and migration quantity determination under natural environment is a process that needs long time to wait, and detection efficiency is low. UTILITY MODEL CONTENT

[0003] (I) the technical problem solved

[0004] In view of the deficiencies of prior art, the utility model provides a dichlorophen migration quantity determination device in food contact material, to solve the problems proposed in the above background art.

[0005] (II) technical scheme

[0006] In order to achieve the above object, the utility model discloses a kind of determination device of dichlorophenol migration in food contact material, including determination disc assembly, the determination disc assembly includes determination disc body, the inner side of upper determination disc body is provided with inner baffle, the outer side of upper determination disc body is provided with outer clamping edge, the periphery of determination disc body bottom is provided with positioning tool insertion hole, the lower side of determination disc body is fixedly connected with spring positioning column, positioning tool insertion hole is inserted with positioning tool assembly above, positioning tool assembly includes bottom sleeve, the middle position of bottom sleeve lower side is fixedly connected with connecting shaft, the upper side of connecting shaft is sleeved with soft cover, the lower side of bottom sleeve inside is provided with bottom positioning soft ring, the upper side of bottom sleeve is connected by screw thread with top cover cylinder, the upper side of top cover cylinder inside is provided with top positioning soft ring, bottom sleeve inside is placed with determination cup limited by top positioning soft ring and bottom positioning soft ring, the lower end of connecting shaft is fixedly installed with bottom vibration disc by screw, bottom vibration disc is equipped with vibration motor, the outer surface of spring positioning column is sleeved with compression spring, which is used to push down bottom vibration disc, the upper side of determination disc assembly is installed with determination cover assembly by outer clamping edge clamping, determination cover assembly includes determination cover body, the periphery of determination cover body is provided with clamping groove, the middle position of determination cover body is fixedly connected with air inlet pipe, the two sides of determination cover body upper side are fixedly connected with handle, determination cover body periphery is fixedly installed with exhaust pipe, the upper side of exhaust pipe is connected by screw thread with gas pipe connector, determination cover body lower side is fixedly installed with lamp tube connecting column close to air inlet pipe periphery, lamp tube connecting column lower side is fixedly installed with lamp tube connecting plate, the lower side of lamp tube connecting plate is installed with ultraviolet lamp tube, the bottom surface of determination disc body and inner wall and the top surface of determination cover body are all bonded with heat insulation cotton, the inner side of heat insulation cotton bonded in determination disc body inner wall is bonded with reflecting paper.

[0007] Preferably, the material of the soft cover is rubber with good elasticity, and the soft cover is divided into an upper circular ring and a lower circular sleeve. The upper circular ring penetrates the heat insulation cotton and has a height greater than the thickness of the heat insulation cotton. The lower circular sleeve has an inner diameter equal to that of the positioning tool insertion hole. The through hole in the soft cover has an inner diameter equal to the outer diameter of the connecting shaft.

[0008] Preferably, the width of the inner baffle is equal to the thickness of the heat insulation cotton. The heat insulation cotton on the top of the determination cover assembly is pressed above the inner baffle and has a small gap between the positioning tool assembly.

[0009] Preferably, the lower end of the exhaust pipe penetrates the heat insulation cotton. The number of exhaust pipes is equal to that of the positioning tool assemblies, and each exhaust pipe is arranged above the outer side of the positioning tool assembly. The inner diameter of the air inlet pipe is greater than that of the exhaust pipe, and the lower end of the air inlet pipe is close to the heat insulation cotton on the bottom surface of the determination disc body.

[0010] The bottom positioning soft ring and the top positioning soft ring are preferably made of rubber with good elasticity and have "L" shaped cross sections.

[0011] Preferably, the material of the measuring cup is transparent quartz glass, and the bottom sleeve and the top cover have groove holes around their periphery.

[0012] The food contact material dichlorophenol migration amount measuring device has the following beneficial effects:

[0013] 1. The food contact material dichlorophenol migration amount measuring device has the effect of simulating multiple environment measurement, and the measuring cup is sealed in the heat-preservation cavity by the measuring disc assembly and the measuring cover assembly with the heat insulation cotton and the reflective paper, then the gas with different temperatures is filled into the cavity through the air inlet pipe in the middle of the measuring cover assembly to change the measurement temperature, and the ultraviolet lamp under the measuring cover assembly is turned on to make the measuring cup in the ultraviolet environment through the reflection of the reflective paper, thereby simulating multiple environment measurement.

[0014] 2. The food contact material dichlorophenol migration amount measuring device has the effect of improving the measurement efficiency, and the positioning tool assembly and the measuring disc assembly are connected by the elastic sleeve, so that the positioning tool assembly is not completely fixed, and the vibration motor can make the positioning tool assembly vibrate when working, thereby making the measuring cup vibrate, and the mechanical vibration can reduce the interaction force between molecules and increase the kinetic energy of molecules, thereby promoting molecular migration and improving the measurement efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the appearance view of the utility model;

[0016] Figure 2 It is a structural schematic view of the front view of the utility model;

[0017] Figure 3 It is a structural schematic view of the front view of the utility model;

[0018] Figure 4 It is a structural schematic view of the front view of the utility model;

[0019] Figure 5 It is a structural schematic view of the measuring disc assembly of the utility model;

[0020] Figure 6 It is the structure schematic view of the positioning tool assembly of the utility model.

[0021] Figure 7 It is the structure schematic view of the measuring cover assembly of the utility model.

[0022] In the drawing: 1, measuring disc assembly; 101, measuring disc body; 102, inner baffle; 103, outer clamping edge; 104, positioning tool insertion hole; 105, spring positioning column; 2, positioning tool assembly; 201, bottom sleeve; 202, connecting shaft; 203, flexible sleeve; 204, bottom positioning flexible ring; 205, top cover sleeve; 206, top positioning flexible ring; 3, measuring cup; 4, bottom vibrating disc; 5, vibrating motor; 6, compression spring; 7, measuring cover assembly; 701, measuring cover body; 702, clamping groove; 703, air inlet pipe; 704, handle; 705, air outlet pipe; 706, air pipe joint; 707, lamp connecting column; 708, lamp connecting plate; 709, ultraviolet lamp; 8, heat insulation cotton; 9, reflective paper. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. EMBODIMENT

[0024] Please refer to Figures 1 to 7The utility model provides technical scheme, a kind of determination device of dichlorophenol migration quantity in food contact material, including determination disc assembly 1, determination disc assembly 1 includes determination disc body 101, the inside of upper side of determination disc body 101 is provided with inner baffle 102, the outside of upper side of determination disc body 101 is provided with outer clamping edge 103, the periphery of bottom of determination disc body 101 is equipped with positioning tool plug-in hole 104, the lower side of determination disc body 101 is fixedly connected with spring positioning column 105, positioning tool plug-in hole 104 is inserted with positioning tool assembly 2 above, positioning tool assembly 2 includes bottom sleeve 201, bottom sleeve 201 lower side middle position is fixedly connected with connecting shaft 202, connecting shaft 202 is inserted with soft cover 203 above, bottom inside of bottom sleeve 201 is provided with bottom positioning soft ring 204, the upper side of bottom sleeve 201 is connected with top cover cylinder 205 by screw, the upper side of top cover cylinder 205 is provided with top positioning soft ring 206, bottom sleeve 201 is placed with determination cup 3 by top positioning soft ring 206 and bottom positioning soft ring 204 limit, the lower end of connecting shaft 202 is fixedly installed with bottom vibration disc 4 by screw, vibration motor 5 is installed in bottom vibration disc 4, the outer surface of spring positioning column 105 is inserted with compression spring 6, which is inserted with the bottom vibration disc 4 and is pushed down, determination disc assembly 1 is installed with determination cover assembly 7 by the clamping of outer clamping edge 103, determination cover assembly 7 includes determination cover body 701, the periphery of determination cover body 701 is equipped with clamping groove 702, the middle position of determination cover body 701 is fixedly connected with air inlet pipe 703, both sides of determination cover body 701 upper side are fixedly connected with handle 704, determination cover body 701 periphery is fixedly installed with exhaust pipe 705, the upper side of exhaust pipe 705 is connected with gas pipe joint 706 by screw, determination cover body 701 lower side is fixedly installed with lamp connecting column 707 near the periphery of air inlet pipe 703, lamp connecting column 707 is fixedly installed with lamp connecting plate 708 below, ultraviolet lamp 709 is installed in lamp connecting plate 708 below, the bottom surface of determination disc body 101 and inner wall and the top surface of determination cover body 701 are all bonded with heat insulation cotton 8, the inside of heat insulation cotton 8 bonded in determination disc body 101 inner wall is bonded with light-reflecting paper 9.

[0025] Specifically, the measuring disc body 101 is fixed on the table top, the clamping groove 702 is divided into a vertical part and a horizontal part, when the measuring cover assembly 7 is installed on the measuring disc assembly 1, first align the vertical part of the clamping groove 702 with the outer clamping edge 103, then buckle down, then rotate the measuring cover assembly 7 to make the outer clamping edge 103 embedded in the horizontal part of the clamping groove 702, the upper part of the air pipe 703 is connected with the device for providing hot air and the device for providing cold air, the cold and hot air provided by the cold and hot devices changes the environment of the measuring cup 3, the air pipe joint 706 is connected with the air pipe for exhaust, the exhaust is to balance the pressure inside the measuring disc assembly 1 and also to recycle the tail gas to realize energy recycling, the device for providing cold and hot air, the vibration motor 5 and the ultraviolet lamp tube 709 are all connected in the same electric control box, then the working state of each component is set through the electric control box to realize automatic change of the measuring environment, the compression spring 6 pushes the bottom vibration disc 4 downward to avoid the positioning tool assembly 2 from being upwardly connected.

[0026] Please refer to Figure 3 The material of the soft sleeve 203 is rubber with good elasticity, the soft sleeve 203 is divided into an upper circular ring and a lower circular sleeve, the upper circular ring passes through the heat insulation cotton 8 and the height dimension is greater than the thickness of the heat insulation cotton 8, the inner diameter dimension of the lower circular sleeve is the same as the inner diameter dimension of the positioning tool insertion hole 104, and the inner diameter dimension of the through hole in the soft sleeve 203 is the same as the outer diameter dimension of the connecting shaft 202.

[0027] Specifically, the height dimension of the upper circular ring is greater than the thickness of the heat insulation cotton 8, so that the bottom of the bottom sleeve 201 does not contact the heat insulation cotton 8, thereby reducing the contact between the positioning tool assembly 2 and other components to reduce the friction resistance, and the vibration resistance of the positioning tool assembly 2 is smaller, and the soft sleeve 203 with good elasticity can help the positioning tool assembly 2 to vibrate.

[0028] Please refer to Figure 3 The width of the inner stop edge 102 is the same as the thickness of the heat insulation cotton 8, the heat insulation cotton 8 on the top of the measuring cover assembly 7 is pressed above the inner stop edge 102 and a small gap is arranged between the positioning tool assembly 2.

[0029] Specifically, the inner stop edge 102 can avoid the operator from touching the heat insulation cotton 8 pasted around the measuring disc body 101 during operation, thereby avoiding damage to the heat insulation cotton 8, the heat insulation cotton 8 on the top of the measuring cover assembly 7 is pressed above the inner stop edge 102, which can improve the sealing effect, a small gap is arranged between the heat insulation cotton 8 on the top and the positioning tool assembly 2, which can avoid the contact between the positioning tool assembly 2 and the heat insulation cotton 8, thereby avoiding the generation of friction resistance and making the vibration occur more smoothly.

[0030] Please refer to Figure 4The lower end of the exhaust pipe 705 passes through the heat insulation cotton 8, the number of the exhaust pipe 705 is the same as that of the positioning tool assembly 2, and each exhaust pipe 705 is distributed above the outer side of the positioning tool assembly 2, and the inner diameter of the air inlet pipe 703 is larger than that of the exhaust pipe 705, and the lower end is close to the bottom surface of the heat insulation cotton 8 of the measuring disc body 101.

[0031] Specifically, the lower end of the exhaust pipe 705 passes through the heat insulation cotton 8, which can communicate with the inside of the measuring disc assembly 1, and the exhaust pipe 705 is located above the outer side of the positioning tool assembly 2 and the lower end of the air inlet pipe 703 is located below the inner side of the positioning tool assembly 2, so that the air filled in the air inlet pipe 703 needs to pass through the positioning tool assembly 2 when circulating in the inside of the measuring disc assembly 1, thereby improving the contact efficiency of the measuring cup 3 and the air and achieving better temperature change.

[0032] Please refer to Figure 3 and 6 The materials of the bottom positioning soft ring 204 and the top positioning soft ring 206 are both good elastic rubber, and the cross sections are both "L" type. The bottom positioning soft ring 204 holds up the measuring cup 3 and holds the lower end, and the top positioning soft ring 206 presses down the measuring cup 3 and holds the upper end.

[0033] Specifically, the top positioning soft ring 206 and the bottom positioning soft ring 204 are respectively buckled above and below the measuring cup 3, which can well fix the measuring cup 3. Since the materials of the top positioning soft ring 206 and the bottom positioning soft ring 204 are both good elastic rubber, the impact caused by vibration can be well absorbed to avoid the rupture of the measuring cup 3.

[0034] Please refer to Figure 4 and Figure 6 The material of the measuring cup 3 is transparent quartz glass, the periphery of the bottom sleeve 201 and the top cover 205 is provided with a slot hole, and the installation height of the ultraviolet lamp 709 is located at the middle position of the measuring cup 3.

[0035] Specifically, the transparent quartz glass has good light transmission and stable chemical properties, and the stable chemical properties can avoid pollution of the experiment. The slot hole is used to allow the ultraviolet light to irradiate the measuring cup 3, and the installation height of the ultraviolet lamp 709 is located at the middle position of the measuring cup 3, which can make the ultraviolet light irradiate more uniformly.

[0036] In use, first open the measuring cover assembly 7 and all the top cover cylinders 205 of the positioning tool assembly 2 in turn and take out all the measuring cups 3, then put the measured material and the simulation material (such as aqueous solvent, oil simulation liquid) into each measuring cup 3 in turn, then insert all the measuring cups 3 into the bottom sleeve 201 from top to bottom, wherein the edge of the bottom of the measuring cup 3 is provided with an arc chamfer, and the chamfer allows the measuring cup 3 to be blindly inserted into the bottom positioning soft ring 204, then fix all the top cover cylinders 205 on the top of the bottom sleeve 201 by screwing, wherein the top of the bottom sleeve 201 is provided with an internal thread, and the bottom of the top cover cylinder 205 is provided with an external thread, in this process, the angle of the measuring cup 3 can be adjusted by the slot holes opened on the periphery of the top cover cylinder 205, so that the upper end of the measuring cup 3 can be smoothly sleeved in the top positioning soft ring 206, then cover the measuring cover assembly 7 on the measuring disc assembly 1 and rotate to lock, then modify the measurement program according to the measurement requirements, such as measuring the dichlorophenol migration amount of a spoon in soup water, adding 100 mL of soup water simulation liquid and a new spoon into the measuring cup 3, then according to the use of the spoon, first quickly pass hot air at 100°C to heat the soup water simulation liquid in the measuring cup 3 to above 90°C, then slowly pass indoor air to simulate natural cooling for 30 minutes, then the measurement program is automatically controlled heating equipment working through the air inlet pipe 703 to pass 100°C air into the inside of the measuring disc assembly 1 for 8 minutes, the specific heating time is calculated by the heat transfer rate equation Q dot = h·A·ΔT avg, after 8 minutes, the heating equipment stops working, then slowly pass indoor air into the inside of the measuring disc assembly 1 through the air inlet pipe 703 for 30 minutes to simulate eating time and simulate natural cooling of the soup water, in this process, the vibration motor 5 can be opened to simulate the shaking of eating by low-frequency vibration, such as measuring the dichlorophenol migration amount of a beverage in a cup for one year, then add 100 mL of beverage and appropriate amount of cup fragments into the measuring cup 3 at room temperature, then open the vibration motor 5 to vibrate at high frequency to increase the dichlorophenol migration rate to improve the detection efficiency, such as simulating the storage of food in an ultraviolet cabinet, then the ultraviolet lamp needs to be turned on, that is, different temperature gases are filled into the cavity through the air inlet pipe 703 to change the measurement temperature, and the ultraviolet lamp 709 and the vibration motor 5 can simulate this environment for measurement.

[0037] In conclusion, the food contact material dichlorophenol migration quantity determination device seals the determination cup 3 in the cavity which can be kept warm by the determination disc assembly 1 and determination cover assembly 7 with the heat insulation cotton 8 pasted inside, then pours the gas with different temperature into the cavity from the air inlet pipe 703 in the middle of the determination cover assembly 7 to change the determination temperature, opens the ultraviolet lamp 709 below the determination cover assembly 7 to put the determination cup 3 in the ultraviolet environment through the reflection of the reflecting paper 9, and then can simulate various environment determination, since the positioning tool assembly 2 is connected with the determination disc assembly 1 through the elastic sleeve 203, the positioning tool assembly 2 is not completely fixed, and thus the vibration motor 5 can make the positioning tool assembly 2 vibrate, and then the determination cup 3 is in vibration, the mechanical vibration can reduce the interaction force between the molecules, increase the energy transmission of the molecules, and then can promote the molecular migration to improve the determination efficiency.

[0038] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A device for determining the migration of dichlorophenol in a food contact material, comprising a determination disc assembly (1), characterized in that: The assay disc assembly (1) comprises an assay disc body (101), an inner baffle (102) arranged on the upper inner side of the assay disc body (101), an outer clamping edge (103) arranged on the upper outer side of the assay disc body (101), a positioning tool insertion hole (104) formed in the periphery of the bottom of the assay disc body (101), a spring positioning column (105) fixedly connected below the assay disc body (101), a positioning tool assembly (2) inserted above the positioning tool insertion hole (104), the positioning tool assembly (2) comprising a bottom sleeve (201), a connecting shaft (202) fixedly connected to the middle position below the bottom sleeve (201), a soft sleeve (203) sleeved above the connecting shaft (202), a bottom positioning soft ring (204) arranged below the inside of the bottom sleeve (201), a top cover sleeve (205) threadedly connected above the bottom sleeve (201), a top positioning soft ring (206) arranged above the inside of the top cover sleeve (205), an assay cup (3) placed in the bottom sleeve (201) and limited by the top positioning soft ring (206) and the bottom positioning soft ring (204), a bottom vibration disc (4) fixedly installed at the lower end of the connecting shaft (202) by screws, a vibration motor (5) installed on the bottom vibration disc (4), a compression spring (6) sleeved on the outer surface of the spring positioning column (105) and used to push the bottom vibration disc (4) downward, an assay cover assembly (7) installed above the assay disc assembly (1) and clamped by the outer clamping edge (103), the assay cover assembly (7) comprising an assay cover body (701), a clamping groove (702) formed in the periphery of the assay cover body (701), an air inlet pipe (703) fixedly connected to the middle position of the assay cover body (701), handles (704) fixedly connected to the two sides above the assay cover body (701), an air outlet pipe (705) fixedly installed around the assay cover body (701), an air pipe connector (706) threadedly connected above the air outlet pipe (705), a lamp tube connecting column (707) fixedly installed around the assay cover body (701) below the air inlet pipe (703), a lamp tube connecting plate (708) fixedly installed below the lamp tube connecting column (707), an ultraviolet lamp tube (709) installed below the lamp tube connecting plate (708), heat insulation cotton (8) adhered to the bottom surface of the assay disc body (101) and the inner wall and the top surface of the assay cover body (701), and reflective paper (9) adhered to the inner side of the heat insulation cotton (8) adhered to the inner wall of the assay disc body (101).

2. The apparatus for determining the migration amount of dichlorophenol in a food contact material according to claim 1, characterized by: The material of the soft sleeve (203) is rubber with good elasticity, the soft sleeve (203) is divided into an upper annular ring and a lower annular sleeve, the upper annular ring passes through the heat insulation cotton (8) and has a height dimension greater than the thickness of the heat insulation cotton (8), the inner diameter dimension of the lower annular sleeve is the same as the inner diameter dimension of the positioning tool insertion hole (104), and the inner diameter dimension of the through hole formed in the inside of the soft sleeve (203) is the same as the outer diameter dimension of the connecting shaft (202).

3. The apparatus for determining the migration amount of dichlorophenol in a food contact material according to claim 1, characterized by: The width of the inner flange (102) is the same as the thickness of the thermal insulation cotton (8), and a small gap is provided between the thermal insulation cotton (8) on the top of the cover assembly (7) and the positioning tool assembly (2).

4. The apparatus for determining the migration amount of dichlorophenol in a food contact material according to claim 1, characterized by: The lower end of the exhaust pipe (705) penetrates the thermal insulation cotton (8), the number of the exhaust pipe (705) is the same as that of the positioning tool assembly (2), and each exhaust pipe (705) is distributed above the outer side of the positioning tool assembly (2), the inner diameter of the air inlet pipe (703) is larger than that of the exhaust pipe (705), and the lower end surface is close to the thermal insulation cotton (8) of the bottom surface of the measuring disc body (101).

5. The apparatus for determining the migration amount of dichlorophenol in a food contact material according to claim 1, characterized by: The materials of the bottom positioning soft ring (204) and the top positioning soft ring (206) are both good elastic rubber, and the cross sections are both "L" type, the bottom positioning soft ring (204) holds up the measuring cup (3) and holds the lower end, and the top positioning soft ring (206) presses down the measuring cup (3) and holds the upper end.

6. The apparatus for determining the migration amount of dichlorophenol in a food contact material according to claim 1, characterized by: The material of the measuring cup (3) is transparent quartz glass, the periphery of the bottom sleeve (201) and the top cover sleeve (205) are both provided with slot holes, and the installation height of the ultraviolet lamp tube (709) is located at the middle position of the measuring cup (3).

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