Dangerous article measuring device

Abstract

The utility model relates to the field of dangerous chemical detection, in particular to a dangerous article measuring device. Comprising a base, a test cup, a controller and a detection mechanism, the detection mechanism comprises a mounting rack, a lifting driving structure which is connected between the mounting rack and the base and is used for driving the mounting rack to do lifting motion, a fixed pipe which is fixedly arranged with the mounting rack and vertically extends downwards, a cup cover fixedly mounted at the lower end of the fixed pipe, and an ignition assembly, a thermometer and a flash point detector which are mounted on the cup cover; a heater is further arranged in the base, the ignition assembly comprises a mounting base and an ignition gun, and the hazardous article measuring device can improve the detection efficiency.

Description

Technical Field

[0001] This application relates to the field of hazardous chemical detection, and particularly to a hazardous material determination device. Background Art

[0002] During law enforcement inspections, it is often impossible to immediately determine whether a sample belongs to a hazardous chemical on the spot. Traditional measurement methods mostly use fully manual operations, which are cumbersome, have poor test accuracy, and low efficiency. Summary of the Invention

[0003] In view of this, this application provides a hazardous material determination device that can improve the detection efficiency.

[0004] To achieve the above object, this application is realized through the following technical solutions:

[0005] A hazardous material determination device, characterized in that: it includes a base, a test cup, a controller, and a detection mechanism; the test cup is used to place the sample, and a groove for placing the test cup is provided on the base;

[0006] The detection mechanism includes a mounting frame, a lifting drive structure connected between the mounting frame and the base for driving the mounting frame to move up and down, a fixed tube fixedly arranged on the mounting frame and extending vertically downward, a cup cover fixedly installed at the lower end of the fixed tube, and an ignition component, a thermometer, and a flash point detector installed on the cup cover;

[0007] The cup cover can be closed on the test cup during the process of following the mounting frame to descend. A heater for heating the test cup to a preset constant temperature is also provided in the base. The preset constant temperature is 60°. The thermometer is connected to the controller for detecting the temperature inside the test cup. The controller controls whether the heater works according to the temperature feedback from the thermometer. The ignition component is used to ignite the sample in the test cup. The flash point detector is connected to the controller and is used to record whether flash combustion occurs when the sample in the test cup is ignited at the preset temperature. The controller determines whether the sample is a hazardous material according to the information fed back by the flash point detector;

[0008] The ignition assembly includes a mounting base fixedly installed on the cup lid, and an ignition gun rotatably connected to the mounting base and capable of swinging up and down. A push block protruding downward is provided at the bottom of the ignition gun. A rotating piece located on the cup lid is also rotatably connected to the fixed tube. An upward-opening first opening is provided on the cup lid, and an upward-opening second opening is provided on the rotating piece. When the rotating piece rotates to a certain position, the second opening overlaps with the first opening. A convex piece protruding radially outward is also provided on the rotating piece. When the convex piece rotates following the rotating piece, the convex piece can push the head of the ignition gun to swing downward, so as to extend into the second opening and the first opening. The ignition gun has a structure with a light head and a heavy tail, so when the rotating piece rotates in the reverse direction, the ignition gun can automatically reset and withdraw from the second opening and the first opening, and a limit is formed when the lower end of the push block touches the mounting base.

[0009] During law enforcement inspections, it is often impossible to immediately determine on the spot whether a sample belongs to a hazardous chemical. For the above-mentioned hazardous material determination device of the present application, the sample is placed in the test cup and into the groove, the cup lid descends to seal the test cup, and the test cup is heated to a preset temperature (60°) by the heater. The rotating piece rotates to make the first opening and the second opening overlap. At this time, the ignition gun enters the cup and ignites. If the vapor of the test sample is instantly ignited and the flame spreads to the entire liquid surface (recorded by the flash point detector), it indicates that the flash point of the sample is at the preset temperature, and it should be preliminarily determined as a hazardous chemical. If no flash combustion phenomenon occurs, it is determined as a non-hazardous chemical. Compared with the existing manual testing, the detection efficiency can be improved through this device. The basis for the preset temperature of 60° is that according to regulations such as the "Regulations on the Administration of Hazardous Chemicals", a hazardous chemical is one with a flash point less than 60°C. By fixing the test temperature at 60°C in the present application, the miniaturization and portability of the instrument can be achieved, providing a basis for law enforcement and case handling.

[0010] In some embodiments, the determination device further includes a rotation driving structure for driving the rotation of the rotating piece. The rotation driving structure includes a first motor, a cam, a sliding block, a fork, a tension spring, and a rotating sleeve. The first motor is fixedly installed on the mounting frame, the cam is fixedly installed on the output shaft of the first motor, the sliding block is connected to the mounting frame in a linear sliding direction, a first lever extending upward is fixedly provided on the sliding block, and the cam can push the first lever and the sliding block to move linearly during rotation. A second lever extending downward is also fixedly provided on the sliding block. The rotating sleeve is rotatably sleeved on the outer periphery of the fixed tube and is fixedly provided with the rotating piece at the lower end. The fork is fixedly installed on the rotating sleeve, and the second lever extends into the middle slot of the fork. When the sliding block extends forward, it can drive the fork, the rotating sleeve, and the rotating piece to rotate synchronously. The tension spring is connected between the sliding block and the mounting frame to drive the sliding block to reset in the reverse direction.

[0011] In some embodiments, a limiting block is fixedly arranged on the cup cover, the thermometer is mounted on the limiting block, and one side of the rotating piece touches one side of the limiting block to form a limit in the initial state.

[0012] In some embodiments, a stirring shaft is rotatably arranged in the fixed tube, a second motor for driving the stirring shaft to rotate is also mounted on the mounting frame, the stirring shaft extends downward out of the cup cover, and a stirring blade is fixedly mounted at the lower end of the stirring shaft. The measuring device is also provided with a stirring shaft, which can make the sample evenly heated and promote evaporation.

[0013] In some embodiments, the lifting drive structure includes a lead screw nut assembly connected to the mounting frame and a third motor for driving the rotation of the lead screw nut assembly.

[0014] In some embodiments, the base includes an upper chassis and a lower chassis fixed together. The heater is installed in the upper chassis, the lead screw nut assembly is installed behind the heater, the third motor is installed in the lower chassis, an air inlet fan is arranged on the rear side wall of the upper chassis, guide plates standing upright upward are respectively fixedly arranged on the left and right sides of the lead screw nut assembly and the heater, and air outlet openings are respectively arranged on the left and right side walls of the upper chassis.

[0015] This embodiment optimizes the heat dissipation structure. The lead screw nut assembly is located behind the heater. Air enters from the rear air inlet fan and, under the action of the guide plates, passes through the lead screw nut assembly and then through the heater, which can prevent the lead screw nut assembly from being damaged due to overheating. Moreover, the third motor is located in the upper chassis, which can also well prevent the motor from overheating. In addition, the air outlet openings are located on the left and right sides of the upper chassis, which can prevent heat from concentrating on the front side of the upper chassis. The front side is mainly arranged with operation buttons, which can prevent scalding the operator.

[0016] As can be seen from the above technical solutions, the present application has at least the following advantages and positive effects:

[0017] For a dangerous goods measuring device of the present application, the sample is placed in the test cup and into the groove, the cup cover descends to seal the test cup, the test cup is heated to a preset temperature (60°) by the heater, the rotating piece rotates, so that the first opening and the second opening overlap. At this time, the ignition gun enters the cup and ignites. If the vapor of the test sample is instantly ignited and the flame spreads to the entire liquid surface (recorded by the flash point detector), it indicates that the flash point of the sample is at the preset temperature, and it should be preliminarily determined as a dangerous chemical. If no flash combustion phenomenon occurs, it is determined as a non-dangerous chemical. By fixing the test temperature at 60°C, the present application can improve the detection efficiency, realize the miniaturization and portability of the instrument, and provide a basis for law enforcement and case handling. Description of the Drawings

[0018] Figure 1 Structural schematic of an embodiment of the present application Figure 1 ;

[0019] Figure 2 Structural schematic of an embodiment of the present application Figure 2 ;

[0020] Figure 3 Cross-sectional view of the stirring shaft part in an embodiment of the present application;

[0021] Figure 4 Schematic diagram of the transmission relationship of the rotation drive structure in an embodiment of the present application;

[0022] Figure 5 Schematic diagram of the operation of the ignition gun in an embodiment of the present application;

[0023] Figure 6 Schematic diagram of the internal structure of the upper box body in an embodiment of the present application.

[0024] Label description: 1. Base; 11. Groove; 12. Upper chassis; 121. Air outlet; 13. Lower chassis; 2. Test cup; 3. Detection mechanism; 31. Mounting frame; 32. Lifting drive structure; 33. Fixed pipe; 34. Cup cover; 35. Ignition assembly; 351. Mounting seat; 352. Ignition gun; 353. Pusher block; 36. Thermometer; 37. Flash point detector; 38. Rotating piece; 381. Second opening; 39. Tab; 310. Limit block; 4. Heater; 5. Rotation drive structure; 51. First motor; 52. Cam; 53. Sliding block; 54. Fork; 55. Rotating sleeve; 56. First lever; 57. Second lever; 6. Stirring shaft; 61. Second motor; 62. Stirring blade; 7. Blower; 8. Deflector; Detailed implementation manners

[0025] In order to make the objectives, technical solutions, and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings. The terms used in the implementation manners part of the present application are only for explaining the specific embodiments of the present application and are not intended to limit the present application.

[0026] Refer to Figures 1 to 6 , an embodiment of the present application provides a hazardous substance determination device, including a base 1, a test cup 2, a controller, and a detection mechanism 3; the test cup 2 is used to place a sample, and a groove 11 for placing the test cup 2 is provided on the base 1;

[0027] The detection mechanism 3 includes a mounting bracket 31, a lifting drive structure 32 connected between the mounting bracket 31 and the base 1 for driving the lifting movement of the mounting bracket 31, a fixed tube 33 fixedly arranged on the mounting bracket 31 and extending vertically downward, a cup cover 34 fixedly installed at the lower end of the fixed tube 33, and an ignition assembly 35, a thermometer 36 and a flash point detector 37 installed on the cup cover 34;

[0028] During the process of the cup cover 34 descending following the mounting bracket 31, it can be closed on the test cup 2. A heater 4 for heating the test cup 2 to a preset constant temperature is further arranged in the base 1. The preset constant temperature is 60°. The thermometer 36 is connected to the controller for detecting the temperature in the test cup 2. The controller controls whether the heater 4 works according to the temperature feedback by the thermometer 36. The ignition assembly 35 is used for igniting the sample in the test cup 2. The flash point detector 37 is connected to the controller and is used for recording whether flash combustion occurs when the sample in the test cup 2 is ignited at the preset temperature. The controller determines whether the sample is a dangerous product according to the information feedback by the flash point detector 37;

[0029] The ignition assembly 35 includes a mounting seat 351 fixedly installed on the cup cover 34, and an ignition gun 352 rotatably connected to the mounting seat 351 and capable of swinging up and down. A push block 353 protruding downward is arranged at the bottom of the ignition gun 352. A rotating piece 38 located on the cup cover 34 is also rotatably connected to the fixed tube 33. An upward-opening first opening is arranged on the cup cover 34. A second opening 381 opening upward is arranged on the rotating piece 38. When the rotating piece 38 rotates to a position, the second opening 381 overlaps with the first opening. A convex piece 39 protruding radially outward is further arranged on the rotating piece 38. When the convex piece 39 follows the rotation of the rotating piece 38, the convex piece 39 can push the head of the ignition gun 352 to swing downward, so as to extend into the second opening 381 and the first opening. The ignition gun 352 has a structure with a light head and a heavy tail. When the rotating piece 38 rotates in the reverse direction, the ignition gun 352 can automatically reset and withdraw from the second opening 381 and the first opening, and a limit is formed when the lower end of the push block 353 touches the mounting seat 351.

[0030] During law enforcement inspections, it is often encountered that it is impossible to determine on the spot whether a sample belongs to a hazardous chemical. For this hazardous chemical determination device, the sample is placed in the test cup 2 and into the groove 11. The cup cover 34 descends to seal the test cup 2. The test cup 2 is heated to a preset temperature (60°) by the heater 4. The rotating piece 38 rotates, causing the first opening and the second opening 381 to overlap. At this time, the ignition gun 352 enters the cup and ignites. If the vapor of the test sample is instantly ignited and the flame spreads over the entire liquid surface (recorded by the flash point detector 37), it indicates that the flash point of the sample is at the preset temperature and should be preliminarily determined as a hazardous chemical. If no flash combustion occurs, it is determined as a non-hazardous chemical. The basis for the preset temperature of 60° is that according to regulations such as the "Regulations on the Administration of Hazardous Chemicals", a hazardous chemical is one with a flash point less than 60°C. By fixing the test temperature at 60°C in this application, the miniaturization and portability of the instrument can be achieved, providing a basis for law enforcement and case handling.

[0031] In some embodiments, the determination device further includes a rotation driving structure 5 for driving the rotation of the rotating piece 38. The rotation driving structure 5 includes a first motor 51, a cam 52, a sliding block 53, a fork 54, a tension spring, and a rotating sleeve 55. The first motor 51 is fixedly installed on the mounting frame 31. The cam 52 is fixedly installed on the output shaft of the first motor 51. The sliding block 53 is connected to the mounting frame 31 in a linear sliding direction. A first lever 56 extending upward is fixedly provided on the sliding block 53. During the rotation of the cam 52, it can push the first lever 56 and the sliding block 53 to move linearly. A second lever 57 extending downward is also fixedly provided on the sliding block 53. The rotating sleeve 55 is rotatably sleeved on the outer periphery of the fixed tube 33 and is fixedly provided with the rotating piece 38 at the lower end. The fork 54 is fixedly installed on the rotating sleeve 55. The second lever 57 extends into the middle slot of the fork 54. When the sliding block 53 extends forward, it can drive the fork 54, the rotating sleeve 55, and the rotating piece 38 to rotate synchronously. The tension spring is connected between the sliding block 53 and the mounting frame 31 to drive the sliding block 53 to reset in the reverse direction.

[0032] In some embodiments, a limit block 310 is further fixedly provided on the cup cover 34. The thermometer is installed on the limit block 310. One side of the rotating piece 38 touches one side of the limit block 310 to form a limit in the initial state.

[0033] In some embodiments, a stirring shaft 6 is rotatably provided in the fixed tube 33. A second motor 61 for driving its rotation is also installed on the mounting frame 31 and is connected to the stirring shaft 6. The stirring shaft 6 extends downward out of the cup cover 34, and a stirring blade 62 is fixedly installed at the lower end of the stirring shaft 6. The determination device is also provided with the stirring shaft 6, which can make the sample heat evenly and promote evaporation.

[0034] In some embodiments, the lifting drive structure 32 includes a lead screw nut assembly connected to the mounting bracket 31 and a third motor for driving the lead screw nut assembly to rotate.

[0035] In some embodiments, the base 1 includes an upper chassis 12 and a lower chassis 13 fixed together. The heater 4 is installed in the upper chassis 12. The lead screw nut assembly is installed behind the heater 4. The third motor is installed in the lower chassis 13. An air inlet fan 7 is provided on the rear side wall of the upper chassis 12. Guide plates 8 standing upright upward are respectively and fixedly provided on the left and right sides of the lead screw nut assembly and the heater 4. Air outlet openings 121 are respectively provided on the left and right side walls of the upper chassis 12.

[0036] This embodiment optimizes the heat dissipation structure. The lead screw nut assembly is located at the rear side of the heater 4. Air enters from the rear air inlet fan 7 and, under the action of the guide plates 8, passes through the lead screw nut assembly and then through the heater 4, which can prevent the lead screw nut assembly from being damaged due to overheating. Moreover, the third motor is located in the upper chassis 12, which can also well prevent the motor from overheating. In addition, the air outlet openings 121 are located on the left and right sides of the upper chassis 12, which can prevent heat from concentrating on the front side of the upper chassis 12, where operation buttons are mainly arranged, thus preventing scalding of the operator.

[0037] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, and are not intended to limit them; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A dangerous goods determination device, characterized in that: It includes a base, a test cup, a controller, and a detection mechanism; the test cup is used to place a sample, and a groove for placing the test cup is provided on the base; The detection mechanism includes a mounting frame, a lifting drive structure connected between the mounting frame and the base for driving the mounting frame to move up and down, a fixed tube fixedly arranged on the mounting frame and extending vertically downward, a cup cover fixedly installed at the lower end of the fixed tube, and an ignition component, a thermometer, and a flash point detector installed on the cup cover; During the process of the cup cover descending following the mounting frame, it can be closed on the test cup. A heater for heating the test cup to a preset constant temperature is also provided inside the base, and the preset constant temperature is 60°. The thermometer is connected to the controller to detect the temperature inside the test cup. The controller controls whether the heater works according to the temperature feedback by the thermometer. The ignition component is used to ignite the sample inside the test cup. The flash point detector is connected to the controller and is used to record whether flash combustion occurs when the sample inside the test cup is ignited at the preset temperature. The controller determines whether the sample is a dangerous good according to the information fed back by the flash point detector; The ignition component includes a mounting seat fixedly installed on the cup cover, and an ignition gun rotatably connected to the mounting seat and capable of swinging up and down. A push block protruding downward is provided at the bottom of the ignition gun. A rotating piece located on the cup cover is also rotatably connected to the fixed tube. An upward-opening first opening is provided on the cup cover, and an upward-opening second opening is provided on the rotating piece. When the rotating piece rotates to a position, the second opening overlaps with the first opening. A radially outward protruding convex piece is also provided on the rotating piece. When the convex piece rotates following the rotating piece, the convex piece can push the head of the ignition gun to swing downward, so as to extend into the second opening and the first opening. The ignition gun has a structure with a light head and a heavy tail, so when the rotating piece rotates in the reverse direction, the ignition gun can automatically reset and withdraw from the second opening and the first opening, and a limit is formed when the lower end of the push block touches the mounting seat.

2. The hazardous substance determination device according to claim 1, characterized in that: The measuring device further includes a rotation drive structure for driving the rotation of the rotating piece. The rotation drive structure includes a first motor, a cam, a sliding block, a fork, a tension spring, and a rotating sleeve. The first motor is fixedly installed on the mounting frame. The cam is fixedly installed on the output shaft of the first motor. The sliding block is connected to the mounting frame in a linear sliding direction. A first lever extending upward is fixedly arranged on the sliding block. The cam can push the first lever and the sliding block to move linearly during rotation. A second lever extending downward is also fixedly arranged on the sliding block. The rotating sleeve is rotatably sleeved on the outer periphery of the fixed tube and is fixedly arranged with the rotating piece at the lower end. The fork is fixedly installed on the rotating sleeve. The second lever extends into the middle slot of the fork. When the sliding block extends forward, it can drive the fork, the rotating sleeve, and the rotating piece to rotate synchronously. The tension spring is connected between the sliding block and the mounting frame to drive the sliding block to reset in the reverse direction.

3. A dangerous goods determination device according to claim 1, characterized in that: A limiting block is fixedly arranged on the cup lid, the thermometer is installed on the limiting block, and when in the initial state, one side of the rotating piece touches one side of the limiting block to form a limit.

4. A dangerous goods determination device according to claim 1, characterized in that: A stirring shaft is rotatably arranged in the fixed pipe, a second motor for driving the rotation of the stirring shaft is further installed on the mounting bracket, the stirring shaft extends downward out of the cup lid, and stirring blades are fixedly installed at the lower end of the stirring shaft.

5. The hazardous material detection device according to claim 1, characterized in that: The lifting drive structure includes a lead screw nut assembly connected to the mounting bracket and a third motor for driving the rotation of the lead screw nut assembly.

6. The hazardous material detection device according to claim 5, characterized in that: The base includes an upper chassis and a lower chassis fixed together. The heater is installed in the upper chassis, the lead screw nut assembly is installed behind the heater, the third motor is installed in the lower chassis, an air inlet fan is arranged on the rear side wall of the upper chassis, guide plates standing upward are respectively fixedly arranged on the left and right sides of the lead screw nut assembly and the heater, and air outlet openings are respectively arranged on the left and right side walls of the upper chassis.

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