Determination device for phthalate plasticizer

Abstract

The utility model discloses a measuring device for a phthalate plasticizer, and relates to the technical field of measuring equipment. The device comprises a machine body, one side in the machine body is fixedly connected with a gas chromatography detector, and a sample inlet is formed in one side of the upper end of the gas chromatography detector and used for sample injection to measure the phthalate plasticizer. According to the sampling needle cleaning device, the elaborate cleaning assembly is designed, rotation of the transmission gear can be accelerated through meshing of all gears when the sampling disc is adjusted, and therefore the cleaning frame in the rotating frame is driven to rotate, cleaning of the sampling needle is achieved, the sampling needle is thoroughly cleaned through the brush, and meanwhile the cleaning box is used for storing cleaning liquid, so that the cleaning effect is good. The electric telescopic rod pulls and compresses the needle handle of the sampling needle to suck and spray out cleaning liquid, the inner wall of the sampling needle is cleaned, cross contamination of residues on the outer portion and the inner wall of the sampling needle to follow-up detection is effectively avoided, and the detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of measuring equipment, especially, relate to a phthalate plasticizer's measuring device. BACKGROUND

[0002] Phthalate plasticizer's measuring device is mainly used for detecting the content of phthalate in materials such as food packaging, children's toys, building materials, etc., generally, the sample to be measured is introduced into the chromatographic column of gas chromatograph detector for detection, but the following shortcomings exist when using:

[0003] 1. At present, the sampling needle needs to be cleaned when detecting phthalate plasticizer, but the existing measuring device is not convenient for cleaning the sampling needle, when the sampling needle is left with the sample or other impurities of the previous detection, cross contamination may be caused, and then the accuracy of subsequent detection is affected.

[0004] Therefore, we propose a phthalate plasticizer's measuring device. INVENTION CONTENTS

[0005] The utility model discloses a phthalate plasticizer's measuring device, which can clean the sampling needle when detecting phthalate plasticizer, so that cross contamination is avoided, and the accuracy of subsequent detection is improved.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A phthalate plasticizer's measuring device, comprising:

[0008] A machine body, one side of the inside of the machine body is fixedly connected with a gas chromatograph detector, one side of the upper end of the gas chromatograph detector is provided with a sample inlet, which is used for sampling to determine the phthalate plasticizer;

[0009] A storage assembly, the storage assembly comprises a support frame fixedly installed on the other side of the inside of the machine body, the upper end of the support frame is fixedly connected with a mounting bracket, the middle part of the support frame and the mounting bracket is rotatably connected with a connecting shaft, the upper end of the connecting shaft is fixedly connected with a sampling disc, which is used for adjusting the position of the sampling disc, the upper end of the sampling disc is provided with a plurality of sampling tubes, which are used for storing the sample to be measured;

[0010] The cleaning assembly comprises a U-shaped frame fixedly installed on the upper end of the mounting frame, a rotating frame rotatably connected to the middle part of the U-shaped frame, a cleaning box slidably connected to the inside of the rotating frame, a cleaning frame slidably connected to the inside of the cleaning box, and a brush arranged in the cleaning frame for cleaning the sampling needle.

[0011] The sampling assembly is installed on the upper end of the inside of the machine body and is used for sampling the sample.

[0012] In a possible design, the sampling assembly comprises a limiting frame installed on the top surface of the machine body, a lead screw rotatably connected to the inside of the limiting frame, a second servo motor fixedly connected to the upper end of the outer wall of one side of the machine body, an output end of the second servo motor penetrating through the machine body and fixedly connected with the lead screw, an installation block threadedly sleeved with the outer wall of the lead screw, a square frame fixedly connected with the outer wall of one side of the lower end of the installation block through bolts, an air cylinder fixedly connected with the outer wall of one side of the square frame, an installation plate fixedly connected with the output end of the air cylinder, a clamping block arranged at the front end of the installation plate, a sampling needle arranged at the middle part of the installation plate and the clamping block, an electric telescopic rod fixedly connected with the upper surface of the installation plate, and a strip-shaped plate fixedly connected with the output end of the electric telescopic rod and the upper end of the sampling needle.

[0013] In a possible design, the outer wall of the upper end of the connecting shaft is fixedly connected with a first large gear, the middle part and the part close to the middle part of the mounting frame are rotatably connected with a first rotating shaft and a second rotating shaft respectively, one side of the mounting frame is rotatably connected with a third rotating shaft, the outer walls of the upper end and the lower end of the first rotating shaft are fixedly connected with a first small gear and a second large gear respectively, the outer walls of the upper end and the lower end of the second rotating shaft are fixedly connected with a middle gear and a second small gear respectively, the upper end of the third rotating shaft is fixedly connected with a transmission gear, and the upper surface of the transmission gear is fixedly connected with the rotating frame, so as to drive the rotating frame to rotate and clean the sampling needle.

[0014] In a possible design, the first large gear is in meshing connection with the first small gear, the second large gear is in meshing connection with the second small gear, and the middle gear is in meshing connection with the transmission gear, so as to accelerate the rotation of the transmission gear.

[0015] In a possible design, the inside of the lower end of the machine body is fixedly connected with a first servo motor, the outer wall of one side of the lower end of the machine body is fixedly connected with a ventilation frame through bolts, the output end of the first servo motor is fixedly connected with a first bevel gear, the outer wall of the lower end of the connecting shaft is fixedly connected with a second bevel gear, the first bevel gear is in meshing connection with the second bevel gear, so as to drive the connecting shaft to rotate, and the front end of the machine body is hingedly connected with a protective door.

[0016] In a possible design, the two sides of the limiting frame are fixedly connected with first guide rods, the two sides of the mounting block are fixedly connected with guide blocks, the first guide rods are slidingly connected in the guide blocks, and the mounting block is limited, the lower end of the square frame is fixedly connected with a second guide rod, and the outer wall of the second guide rod is slidingly connected with the rear end of the mounting plate, so that the mounting plate is limited.

[0017] In the application, when in use, automatic sampling is first realized through a sampling assembly in the machine body, the sampling assembly is driven by a second servo motor to rotate a lead screw, so that the mounting block moves in the limiting frame, a square frame on the mounting block is provided with a cylinder, the extension and contraction of the cylinder drives a sampling needle on the mounting plate to approach a sampling tube on a sampling disc, and the sampling needle is sampled by pulling a needle handle of the sampling needle through an electric telescopic rod, the sampling disc in the storage assembly is rotationally connected with a support frame and a mounting frame through a connecting shaft, the position of the sampling disc can be adjusted by driving the connecting shaft to rotate through a first servo motor, so that the sampling needle can be smoothly sampled, the sampling needle is cleaned by a cleaning box and a cleaning frame in a rotating frame on a U-shaped frame and a brush in the cleaning frame, and the cleaning process is realized through a series of gear transmissions: the connecting shaft is meshed with a first small gear through a first large gear, drives a first rotating shaft to rotate, and then drives the cleaning frame in the rotating frame to rotate through the meshing of a second large gear and a second small gear and the meshing of a middle gear and a transmission gear, so that the rotating speed of the transmission gear is accelerated, so that the cleaning of the sampling needle is realized, the cleaning box is used for storing cleaning liquid, the needle handle of the sampling needle is pulled and compressed through the electric telescopic rod to suck and spray the cleaning liquid, and the inner wall of the sampling needle is cleaned, the sample after sampling is sent into a sample inlet of a gas chromatograph detector through the sampling needle, and determination of the phthalate plasticizer is realized, qualitative and quantitative analysis of the phthalate in the complex sample is realized through the high separation capacity of the gas chromatograph and the high identification capacity of the mass spectrometer.

[0018] In the utility model, the determination device of the phthalate plasticizer is designed with the exquisite cleaning assembly, the rotation of the transmission gear is accelerated when the sampling disc is adjusted through the meshing of the gears, so that the cleaning frame in the rotating frame is driven to rotate, the cleaning of the sampling needle is realized, the sampling needle is completely cleaned through the brush, the cleaning box is used for storing the cleaning liquid, the needle handle of the sampling needle is pulled and compressed through the electric telescopic rod to suck and spray the cleaning liquid, and the inner wall of the sampling needle is cleaned, the residual material on the outer part and the inner wall of the sampling needle is effectively avoided to cross-contaminate the subsequent detection, and the accuracy of the detection is improved.

[0019] The utility model discloses a phthalate plasticizer's measuring device, through the sampling disc in the storage subassembly can be through motor drive position adjustment, sampling needle can conveniently reach the sampling tube of different position, improved the flexibility and adaptability of equipment, the measuring device realized the full automation process of sampling, cleaning and detection, improved the detection efficiency, alleviated the labor intensity of operating personnel. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment needed to use the drawing briefly introduced, obviously, the following description in the drawing only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0021] Figure 1 It is three-dimensional structure schematic view for the body inside an embodiment of the utility model;

[0022] Figure 2 It is three-dimensional structure schematic view for sampling assembly and storage subassembly of an embodiment of the utility model;

[0023] Figure 3 It is three-dimensional structure schematic view for an embodiment of the utility model;

[0024] Figure 4 It is three-dimensional structure schematic view for first big gear, first rotation axis, second rotation axis and first pinion of an embodiment of the utility model;

[0025] Figure 5 It is three-dimensional structure schematic view for cleaning assembly of an embodiment of the utility model.

[0026] In the drawing: 1, body;2, gas chromatograph detector;3, limit frame;4, screw;5, mounting block;6, square frame;7, air cylinder;8, mounting plate;9, clamping block;10, sampling needle;11, electric telescopic rod;12, strip plate;13, support frame;14, mounting frame;15, connecting shaft;16, sampling disc;17, sampling tube;18, brush;19, U-shaped frame;20, cleaning box;21, cleaning frame;22, first big gear;23, first rotation axis;24, second rotation axis;25, first pinion;26, second big gear;27, second pinion;28, middle gear;29, third rotation axis;30, transmission gear;31, rotation frame;32, first servo motor;33, first bevel gear;34, second bevel gear;35, second servo motor;36, guide block;37, first guide rod;38, second guide rod;39, sample inlet;40, ventilation frame;41, protective door. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] In the description of the utility model, it is understood that the terms "opening", "upper", "middle", "length", "inner" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] In order to keep the following description of the embodiments of the utility model clear and brief, the utility model omits the detailed description of known functions and known components.

[0030] Embodiment 1

[0031] With reference to Figures 1-5 A measuring device comprises:

[0032] The body 1 is internally fixedly connected with a gas chromatograph 2 on one side, and a sample inlet 39 is arranged on the upper end of the gas chromatograph 2 on one side, for sample feeding to determine phthalate plasticizers.

[0033] The storage assembly comprises a support frame 13 fixedly installed on the other side of the body 1, and the upper end of the support frame 13 is fixedly connected with a mounting frame 14, and the middle part of the support frame 13 and the mounting frame 14 is rotatably connected with a connecting shaft 15, and the upper end of the connecting shaft 15 is fixedly connected with a sampling disc 16, for adjusting the position of the sampling disc 16, and the upper end of the sampling disc 16 is provided with a plurality of sampling tubes 17, for storing the sample to be measured.

[0034] The cleaning assembly comprises a U-shaped frame 19 fixedly installed on the upper end of the mounting frame 14, and the middle part of the U-shaped frame 19 is rotatably connected with a rotating frame 31, and the inside of the rotating frame 31 is slidably connected with a cleaning box 20, and the inside of the cleaning box 20 is slidably connected with a cleaning frame 21, and the inside of the cleaning frame 21 is provided with a brush 18, for cleaning the sampling needle 10.

[0035] The sampling assembly is installed on the upper end of the inside of the body 1, for sampling the sample.

[0036] The technical scheme is characterized in that the first servo motor 32 drives the connecting shaft 15 to rotate, so as to adjust the position of the sampling disc 16, so that the sampling needle 10 can smoothly sample, the cleaning assembly cleans the sampling needle 10 through the cleaning box 20 and the cleaning frame 21 in the rotating frame 31 on the U-shaped frame 19, and the brush 18 in the cleaning frame 21, when the sample after sampling is sent into the sample inlet 39 of the gas chromatograph detector 2 through the sampling needle 10, the determination of the phthalate plasticizer is carried out, and the phthalate in the complex sample is qualitatively and quantitatively analyzed through the high separation capacity of the gas chromatograph and the high identification capacity of the mass spectrometer.

[0037] In one aspect of the embodiment, as shown in Figure 3 The sampling assembly comprises a limiting frame 3 installed on the top surface of the machine body 1, a lead screw 4 rotatably connected inside the limiting frame 3, a second servo motor 35 fixedly connected to the upper end of the outer wall of one side of the machine body 1, the output end of the second servo motor 35 penetrating through the machine body 1 and being fixedly connected with the lead screw 4, an installation block 5 threadedly sleeved on the outer wall of the lead screw 4, a square frame 6 fixedly connected to the outer wall of one side of the lower end of the installation block 5 through bolts, a gas cylinder 7 fixedly connected to the outer wall of one side of the square frame 6, an installation plate 8 fixedly connected to the output end of the gas cylinder 7, a clamping block 9 provided on the front end of the installation plate 8, a sampling needle 10 provided on the clamping block 9 and the middle part of the installation plate 8, an electric telescopic rod 11 fixedly connected to the upper surface of the installation plate 8, a strip-shaped plate 12 fixedly connected to the output end of the electric telescopic rod 11, and the lower surface of one side of the strip-shaped plate 12 being fixedly connected with the upper end of the sampling needle 10 for pulling the needle handle of the sampling needle 10 to sample.

[0038] In the technical scheme, the second servo motor 35 drives the lead screw 4 to rotate, so as to drive the installation block 5 to move in the limiting frame 3, the square frame 6 on the installation block 5 is provided with the gas cylinder 7, the telescopic movement of the gas cylinder 7 drives the sampling needle 10 on the installation plate 8 to approach the sampling tube 17 on the sampling disc 16, and the needle handle of the sampling needle 10 is pulled by the electric telescopic rod 11 to sample.

[0039] In one aspect of the embodiment, as shown in Figure 4 The outer wall of the upper end of the connecting shaft 15 is fixedly connected with a first large gear 22, the middle part and the part close to the middle part of the mounting frame 14 are rotatably connected with a first rotating shaft 23 and a second rotating shaft 24 respectively, one side of the mounting frame 14 is rotatably connected with a third rotating shaft 29, the outer walls of the upper end and the lower end of the first rotating shaft 23 are fixedly connected with a first small gear 25 and a second large gear 26 respectively, the outer walls of the upper end and the lower end of the second rotating shaft 24 are fixedly connected with a middle gear 28 and a second small gear 27 respectively, the upper end of the third rotating shaft 29 is fixedly connected with a transmission gear 30, the upper surface of the transmission gear 30 is fixedly connected with a rotating frame 31 for driving the rotating frame 31 to rotate to clean the sampling needle 10.

[0040] In the technical scheme, the first gear 22 meshes with the first pinion 25 to drive the first rotating shaft 23 to rotate, and then the second gear 26 meshes with the second pinion 27 and the middle gear 28 meshes with the transmission gear 30 to accelerate the rotation of the transmission gear 30, so as to drive the cleaning frame 21 in the rotating frame 31 to rotate, and the sampling needle 10 is cleaned.

[0041] The application can be used in the field of measuring equipment, and can also be used in other fields applicable to the application.

[0042] Embodiment 2

[0043] Based on the improvement of embodiment 1: a device for measuring phthalate plasticizer is used in the field of measuring equipment,

[0044] In one aspect of the embodiment, as shown in Figure 4 The first gear 22 is meshed with the first pinion 25, the second gear 26 is meshed with the second pinion 27, and the middle gear 28 is meshed with the transmission gear 30 to accelerate the rotation of the transmission gear 30.

[0045] In the technical scheme, the meshing connection of each gear realizes the function of accelerating the rotation of the transmission gear 30.

[0046] In one aspect of the embodiment, as shown in Figure 2 and Figure 3 As shown in the drawings, the first servo motor 32 is fixedly connected to the inside of the lower end of the machine body 1, the ventilation frame 40 is fixedly connected to the outer wall of one side of the lower end of the machine body 1 through bolts, the output end of the first servo motor 32 is fixedly connected with the first bevel gear 33, the lower end of the connecting shaft 15 is fixedly connected with the second bevel gear 34, the first bevel gear 33 is meshed with the second bevel gear 34 to drive the connecting shaft 15 to rotate, and the front end of the machine body 1 is hingedly connected with the protective door 41.

[0047] In the technical scheme, the first servo motor 32 is arranged to drive the connecting shaft 15 to rotate.

[0048] In another aspect of the embodiment, as shown in Figure 3 The first guide rod 37 is fixedly connected to the two sides of the limiting frame 3, the guide block 36 is fixedly connected to the two sides of the mounting block 5, the first guide rod 37 is slidingly connected in the inside of the guide block 36 to limit the mounting block 5, the second guide rod 38 is fixedly connected to the lower end of the square frame 6, and the outer wall of the second guide rod 38 is slidingly connected with the rear end of the mounting plate 8 to limit the mounting plate 8.

[0049] In the technical scheme, the first guide rod 37, the guide block 36 and the second guide rod 38 are arranged to improve the stability of the sampling assembly adjustment.

[0050] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and limit the present application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that the persons skilled in the art can well understand and utilize the present application. The present application is limited by the claims and the entire scope and equivalents thereof.

Claims

1. An apparatus for determining phthalate plasticizers, characterized in that, include: The body (1) has a gas chromatograph (2) fixedly connected to one side inside the body (1). The gas chromatograph (2) has an injection port (39) on one side of its upper end for injecting samples to determine phthalate plasticizers. The storage component includes a support frame (13) fixedly installed inside the body (1) on the other side. The upper end of the support frame (13) is fixedly connected to a mounting frame (14). A connecting shaft (15) is rotatably connected between the support frame (13) and the mounting frame (14). A sampling plate (16) is fixedly connected to the upper end of the connecting shaft (15) for adjusting the position of the sampling plate (16). Multiple sampling tubes (17) are provided at the upper end of the sampling plate (16) for storing the sample to be tested. The cleaning assembly includes a U-shaped frame (19) fixedly installed on the upper end of the mounting bracket (14). A rotating frame (31) is rotatably connected to the middle of the U-shaped frame (19). A cleaning box (20) is slidably connected inside the rotating frame (31). A cleaning frame (21) is slidably connected inside the cleaning box (20). A brush (18) is provided inside the cleaning frame (21) for cleaning the sampling needle (10). The sampling component is installed at the upper end inside the body (1) for sampling. The sampling component includes a limiting frame (3) installed on the top surface inside the body (1). A lead screw (4) is rotatably connected inside the limiting frame (3). A second servo motor (35) is fixedly connected to the upper end of the outer wall of one side of the body (1). The output end of the second servo motor (35) passes through the body (1) and is fixedly connected to the lead screw (4). An installation block (5) is threaded on the outer wall of the lead screw (4). A square frame (6) is fixedly connected to the outer wall of the lower end of the installation block (5) by bolts. A cylinder (7) is fixedly connected to the outer wall of one side of the square frame (6). An installation plate (8) is fixedly connected to the output end of the cylinder (7). A clamping block (9) is provided at the front end of the installation plate (8). A sampling needle (10) is provided in the middle of the clamping block (9) and the installation plate (8). An electric telescopic rod (11) is fixedly connected to the upper surface of the installation plate (8). A strip plate (12) is fixedly connected to the output end of the electric telescopic rod (11). The lower surface of one side of the strip plate (12) is fixedly connected to the upper end of the sampling needle (10) for pulling the needle handle of the sampling needle (10) to take a sample.

2. The apparatus for determining phthalate plasticizers as described in claim 1, characterized in that, The upper end of the connecting shaft (15) is fixedly connected to the outer wall of the first large gear (22). The middle part and near the middle part of the mounting frame (14) are respectively rotatably connected to the first rotating shaft (23) and the second rotating shaft (24). The side of the mounting frame (14) is rotatably connected to the third rotating shaft (29). The upper and lower ends of the first rotating shaft (23) are respectively fixedly connected to the outer walls of the first small gear (25) and the second large gear (26). The upper and lower ends of the second rotating shaft (24) are respectively fixedly connected to the outer walls of the middle gear (28) and the second small gear (27). The upper end of the third rotating shaft (29) is fixedly connected to the transmission gear (30). The upper surface of the transmission gear (30) is fixedly connected to the rotating frame (31) to drive the rotating frame (31) to rotate and clean the sampling needle (10).

3. The apparatus for determining phthalate plasticizers as described in claim 2, characterized in that, The first large gear (22) meshes with the first small gear (25), the second large gear (26) meshes with the second small gear (27), and the middle gear (28) meshes with the transmission gear (30) to accelerate the rotation of the transmission gear (30).

4. The apparatus for determining phthalate plasticizers as described in claim 1, characterized in that, The lower end of the body (1) is fixedly connected to a first servo motor (32). The outer wall of the lower end of the body (1) is fixedly connected to a ventilation frame (40) by bolts. The output end of the first servo motor (32) is fixedly connected to a first bevel gear (33). The lower end of the connecting shaft (15) is fixedly connected to a second bevel gear (34). The first bevel gear (33) and the second bevel gear (34) are meshed and connected to drive the connecting shaft (15) to rotate. The front end of the body (1) is hinged to a protective door (41).

5. The apparatus for determining phthalate plasticizers as described in claim 2, characterized in that, The limiting frame (3) is fixedly connected to both sides of a first guide rod (37), and the mounting block (5) is fixedly connected to both sides of a guide block (36). The first guide rod (37) is slidably connected inside the guide block (36) to limit the mounting block (5). The lower end of the square frame (6) is fixedly connected to a second guide rod (38). The outer wall of the second guide rod (38) is slidably connected to the rear end of the mounting plate (8) to limit the mounting plate (8).

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