CN113514281B - Sampling device for residual liquid in barrel - Google Patents

Sampling device for residual liquid in barrel Download PDF

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Publication number
CN113514281B
CN113514281B CN202110452513.6A CN202110452513A CN113514281B CN 113514281 B CN113514281 B CN 113514281B CN 202110452513 A CN202110452513 A CN 202110452513A CN 113514281 B CN113514281 B CN 113514281B
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CN
China
Prior art keywords
sampling
residual liquid
air extraction
tube
camera
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Application number
CN202110452513.6A
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Chinese (zh)
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CN113514281A (en
Inventor
何源
浦征宇
孙华
于秀华
陈攀新
吴彦冬
张小沁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Chemical Industry Testing Co ltd
Shanghai Research Institute of Chemical Industry SRICI
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Shanghai Chemical Industry Testing Co ltd
Shanghai Research Institute of Chemical Industry SRICI
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Priority to CN202110452513.6A priority Critical patent/CN113514281B/en
Publication of CN113514281A publication Critical patent/CN113514281A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14Suction devices, e.g. pumps; Ejector devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14Suction devices, e.g. pumps; Ejector devices
    • G01N2001/1418Depression, aspiration

Abstract

The invention relates to a sampling device for residual liquid in a barrel, which comprises a handheld mechanism, a residual liquid sampling mechanism detachably arranged at the bottom of the handheld mechanism, an air extraction mechanism matched with the residual liquid sampling mechanism and a residual liquid probing mechanism arranged on the handheld mechanism. Compared with the prior art, the sampling device for collecting a small amount of residual liquid in the ton barrel or the oil barrel, which is provided by the invention, can ensure that the sample is not easy to volatilize into the environment in the sampling and transferring processes, has a simple structure, can be produced in batches, is fast and flexible to operate, and is beneficial to popularization.

Description

Sampling device for residual liquid in barrel
Technical Field
The invention belongs to the technical field of liquid sampling in a barrel, and relates to a sampling device for residual liquid in the barrel.
Background
In recent years, some enterprises have the above-mentioned illegal actions because illegal operations and storage of dangerous chemicals can bring huge illegal profits. To address the above-described illicit business, law enforcement first needs to collect and then verify the stored chemicals. Wherein, the liquid dangerous chemicals account for a larger proportion. At present, common liquid sampling devices are mainly plastic droppers or plastic oil pumps, and risks of difficult sampling, easy exposure and the like exist.
For liquid chemicals, businesses typically store them in large volumes, high depths, ton barrels or oil barrels. However, when only a small amount of liquid remains in the tub, a scattered and scattered distribution is formed at the bottom of the tub, and direct suction is not possible. In this case, even if the tub is poured, the liquid is attached to the tub wall and cannot flow to the tub mouth, which causes great inconvenience to the sampling process. In addition, liquid hazardous chemicals may have deleterious properties such as toxicity, corrosiveness, and at the same time be volatile, causing harm to sampling personnel through respiratory tract or skin contact. In addition, the common sampling device is easy to volatilize into the environment in the sampling and transferring processes, so that potential safety hazards are brought.
Disclosure of Invention
The invention aims to provide a sampling device for residual liquid in a barrel, which can be used for collecting the residual liquid in a ton barrel or an oil barrel and can ensure that samples are not easy to volatilize into the environment in the sampling and transferring processes. The device has simple structure, can be produced in batch, is rapid and flexible to operate, can be widely applied to sampling residual liquid in various barrels, can prepare a plurality of sampling bottles for standby, is convenient for continuous and repeated sampling, and improves the sampling efficiency.
The aim of the invention can be achieved by the following technical scheme:
a sampling device for residual liquid in a barrel comprises a handheld mechanism, a residual liquid sampling mechanism detachably arranged at the bottom of the handheld mechanism, an air extraction mechanism matched with the residual liquid sampling mechanism and a residual liquid probing mechanism arranged on the handheld mechanism. The residual liquid detection mechanism is used for detecting the position and the allowance of residual liquid in the barrel; the residual liquid sampling mechanism is matched with the air extraction mechanism, so that residual liquid in the barrel can be sampled.
Further, the handheld mechanism comprises a handle, a hollow long rod vertically arranged on the handle, a probing mechanism fixing block arranged at the bottom of the hollow long rod and a plurality of clamping jaws which are uniformly distributed on the side surface of the probing mechanism fixing block along the circumferential direction and are matched with the residual liquid sampling mechanism.
Preferably, the outer wall of the hollow long rod is provided with scales.
Further, the outer diameter of the fixed block of the probing mechanism is gradually increased from top to bottom.
Further, the clamping jaw comprises a clamping jaw inclined part matched with the side face of the fixed block of the probing mechanism and a clamping jaw vertical part arranged at the bottom of the clamping jaw inclined part.
Preferably, the clamping jaw is welded with the probing mechanism fixing block.
Further, the residual liquid sampling mechanism comprises a sampling bottle with a downward opening and detachably arranged between the clamping jaws, a sampling bottle cover arranged at the bottom opening of the sampling bottle and a liquid suction pipe penetrating through the sampling bottle cover. The liquid suction pipe is used for extracting residual liquid from the barrel, so that sampling is realized. The sampling bottle is fixed between the clamping jaws during sampling.
Further, the sampling bottle is positioned between the clamping jaw vertical parts of the clamping jaws, and the outer sides of the clamping jaw vertical parts are detachably sleeved with rubber rings. The sampling bottle is detachably fixed by utilizing the rubber ring to match with the clamping jaw.
Further, the liquid suction pipe comprises a liquid suction pipe vertical part penetrating through the bottle cap of the sampling bottle and a liquid suction pipe bending part arranged at the top of the liquid suction pipe vertical part.
Preferably, the outlet direction of the bent part of the liquid suction pipe is downward.
Further, the air extraction mechanism comprises an air extraction glass tube penetrating through the bottle cap of the sampling bottle, an air extraction pump and a flexible air extraction tube arranged between the air extraction glass tube and the air extraction pump. The air pump is connected with the air extraction glass tube through the flexible air extraction tube so as to extract the air in the sampling bottle.
Preferably, the liquid suction pipe and the air suction glass pipe are J-shaped. Two small holes are arranged on the bottle cap of the sampling bottle, and the air suction glass tube and the liquid suction tube are inserted into the sampling bottle through the small holes. The rubber ring fixes the clamping jaw, the sampling bottle and the flexible exhaust tube in the sampling process.
Further, the middle part of the flexible exhaust tube is positioned in the handle, an adjusting needle valve matched with the flexible exhaust tube is arranged on the handle, and a needle valve hand driving wheel is arranged on the adjusting needle valve.
Further, the residual liquid exploration mechanism comprises a camera, a plurality of LED lamps, a cable which is connected with the camera and the LED lamps respectively and penetrates through the hollow long rod, and a camera shooting assembly box which is arranged at one end of the cable, wherein a mobile phone interface is arranged on the camera shooting assembly box, and the camera and the LED lamps are arranged at the bottom of a fixed block of the exploration mechanism. The mobile phone can be connected with the camera module box through a mobile phone interface to carry out camera operation, and can also be connected with the camera module box through Bluetooth. The LED lamp, the camera and the camera assembly box are all commercial products.
Preferably, the height of the camera is greater than the height of the bottom end of the clamping jaw.
In the invention, the size, the material and the number of each component can be selected according to actual needs. For example: the length of the hollow long rod can be 1m; the number of the LED lamps is 6, and the LED lamps are uniformly distributed at the bottom of the fixed block of the probing mechanism; the clamping jaw is made of high-elasticity stainless steel, the number of the clamping jaw is 4, the clamping jaw is evenly distributed on the outer side of the fixed block of the probing mechanism, a sampling bottle is easy to fix, the length of the vertical parts of the clamping jaw is 4-5cm, and the distance between the two opposite vertical parts of the clamping jaw is 4.4-4.5cm; the sampling bottle can be made of transparent organic glass materials, the sampling condition can be easily observed through shooting in the sampling process, and the specification can be selected as follows: the volume is 100mL, the inner caliber is 2.4cm, the height is 9.8cm, the diameter is 4.4cm, and the adhesive elevation is 6.5cm; the bottle cap of the sampling bottle is made of plastic material, and the diameters of the two small holes are 0.7cm; the liquid suction pipe and the air suction glass pipe are made of transparent organic glass, the outer diameter is 0.7cm, the inner diameter is 0.5cm, the length of the long end is 15-20cm, and the length of the short end is 2-3cm; the inner diameter of the flexible suction tube can be selected to be 0.6-0.7cm.
Compared with the prior art, the invention has the following characteristics:
(1) The device has simple structure, low cost, simple operation and safe use, can be widely applied to the collection of residual liquid in various ton barrels or oil barrels, and can ensure that samples are not easy to volatilize into the environment in the sampling and transferring processes;
(2) The clamping jaws, the sampling bottle and the flexible exhaust tube are fixed in the sampling process by combining the clamping jaws with the rubber ring, so that the falling-off is prevented;
(3) When the device is not provided with a sampling bottle, the device stretches into the barrel through the handheld mechanism and the residual liquid exploration mechanism, so that the height of the residual liquid in the barrel can be explored, the general distance of the device stretching into the barrel is determined in advance before sampling, and the clamping jaw can prevent the liquid from being carelessly contacted with the pollution camera in the exploration process;
(4) In the sampling process, the device can more accurately determine the actual extending distance through the combination of the LED lamp and the camera shooting function;
(5) The needle valve and the needle valve hand driving wheel are adjusted to effectively control the air suction pressure of the air suction pump, and meanwhile, the shapes and the structures of the air suction glass tube and the liquid suction tube can effectively prevent liquid from being sucked into the air suction pump reversely;
(6) The sampling bottle is used for directly sampling, so that the sample is not easy to volatilize into the environment in the sampling and transferring process;
(7) The whole device is simple and convenient to operate, can be widely applied to sampling of residual liquid in various barrels, can prepare a plurality of sampling bottles for standby, is convenient for sampling continuously and repeatedly, and improves sampling efficiency.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a camera and a plurality of LED lamps according to the present invention;
the figure indicates:
1-hollow long rod, 2-cable, 3-probing mechanism fixed block, 4-LED lamp, 5-camera, 6-rubber ring, 7-clamping jaw, 701-clamping jaw inclined part, 702-clamping jaw vertical part, 8-sampling bottle, 9-liquid suction pipe, 901-liquid suction pipe vertical part, 902-liquid suction pipe bending part, 10-adjusting needle valve, 11-needle valve hand-pulling wheel, 12-handle, 13-flexible air suction pipe, 14-air suction glass pipe, 15-camera shooting assembly box, 16-mobile phone interface, 17-air suction pump and 18-sampling bottle cap.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following examples.
Examples:
the sampling device for residual liquid in the barrel shown in fig. 1 comprises a handheld mechanism, a residual liquid sampling mechanism detachably arranged at the bottom of the handheld mechanism, an air extraction mechanism matched with the residual liquid sampling mechanism and a residual liquid probing mechanism arranged on the handheld mechanism.
The handheld mechanism comprises a handle 12, a hollow long rod 1 vertically arranged on the handle 12, a probing mechanism fixing block 3 arranged at the bottom of the hollow long rod 1, and a plurality of clamping jaws 7 which are uniformly distributed on the side surface of the probing mechanism fixing block 3 along the circumferential direction and are matched with the residual liquid sampling mechanism. The outer diameter of the probe mechanism fixing block 3 is gradually increased from top to bottom. The gripper 7 comprises a gripper tilting part 701 adapted to the side of the probing device mounting block 3 and a gripper vertical part 702 arranged at the bottom of the gripper tilting part 701.
The residual liquid sampling mechanism comprises a sampling bottle 8 which is downwards opened and detachably arranged between a plurality of clamping jaws 7, a sampling bottle cap 18 which is arranged at the bottom opening of the sampling bottle 8, and a liquid suction pipe 9 which penetrates through the sampling bottle cap 18. The sampling bottle 8 is located between the jaw vertical portions 702 of the plurality of jaws 7, and the outside of the plurality of jaw vertical portions 702 is detachably sleeved with a rubber band 6. The extractor tube 9 includes an extractor tube vertical portion 901 penetrating the bottle cap 18 of the sampling bottle, and an extractor tube bending portion 902 provided on the top of the extractor tube vertical portion 901.
The air extraction mechanism comprises an air extraction glass tube 14 penetrating through a bottle cap 18 of the sampling bottle, an air extraction pump 17 and a flexible air extraction tube 13 arranged between the air extraction glass tube 14 and the air extraction pump 17. The middle part of the flexible exhaust tube 13 is positioned in the handle 12, the handle 12 is provided with an adjusting needle valve 10 which is matched with the flexible exhaust tube 13, and the adjusting needle valve 10 is provided with a needle valve hand driving wheel 11.
As shown in fig. 2, the residual liquid probing mechanism includes a camera 5, a plurality of LED lamps 4, a cable 2 connected with the camera 5 and the LED lamps 4 respectively and passing through the hollow long rod 1, and a camera assembly box 15 disposed at one end of the cable 2, where the camera assembly box 15 is provided with a mobile phone interface 16, and the camera 5 and the LED lamps 4 are all disposed at the bottom of the probing mechanism fixing block 3.
The use process of the device is as follows:
1) Firstly, connecting a mobile phone with a camera module box 15 through a mobile phone interface 16;
2) When the sample bottle 8 is not loaded, the device is extended into the barrel by the handle 12. The LED lamp 4 and the camera 5 are turned on to carry out residual liquid depth exploration, the scale marked on the outer layer of the hollow long rod 1 is utilized to determine the general depth of the extending part, the device is taken out from the barrel, and the LED lamp 4 and the camera 5 are turned off;
3) After the liquid suction pipe 9, the air suction glass pipe 14, the flexible air suction pipe 13 and the sampling bottle 8 are assembled, the sampling bottle 8, the clamping jaw 7 and the flexible air suction pipe 13 are fixed through the rubber ring 6;
4) The device is stretched into the barrel by referring to the outer scale of the hollow long rod 1, and the LED lamp 4 and the camera 5 are turned on to accurately determine the stretching distance;
5) The suction pump 17 is turned on to suction air. When the sampling bottle 8 is observed through the camera 5, the needle valve hand thumb wheel 11 is slowly opened to control the air suction pressure, the needle valve hand thumb wheel 11 is closed after the proper liquid amount is extracted, the air suction pump 17 is closed, the device is taken out from the barrel, and the LED lamp 4 and the camera 5 are closed;
6) After the sampling bottle 8 is taken off from the device, the bottle cap for sampling is quickly replaced by a closed bottle cap, and the sampling is completed.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.

Claims (4)

1. The sampling device for the residual liquid in the barrel is characterized by comprising a handheld mechanism, a residual liquid sampling mechanism detachably arranged at the bottom of the handheld mechanism, an air extracting mechanism matched with the residual liquid sampling mechanism and a residual liquid probing mechanism arranged on the handheld mechanism;
the handheld mechanism comprises a handle (12), a hollow long rod (1) vertically arranged on the handle (12), a probing mechanism fixing block (3) arranged at the bottom of the hollow long rod (1) and a plurality of clamping jaws (7) which are uniformly distributed on the side surface of the probing mechanism fixing block (3) along the circumferential direction and are matched with the residual liquid sampling mechanism;
the clamping jaw (7) comprises a clamping jaw inclined part (701) which is matched with the side surface of the probing mechanism fixing block (3) and a clamping jaw vertical part (702) which is arranged at the bottom of the clamping jaw inclined part (701);
the residual liquid sampling mechanism comprises a sampling bottle (8) with a downward opening and detachably arranged among a plurality of clamping jaws (7), a sampling bottle cap (18) arranged at the bottom opening of the sampling bottle (8) and a liquid suction pipe (9) penetrating through the sampling bottle cap (18);
the residual liquid exploration mechanism comprises a camera (5), a plurality of LED lamps (4), a cable (2) which is respectively connected with the camera (5) and the LED lamps (4) and penetrates through the hollow long rod (1), and a shooting assembly box (15) which is arranged at one end of the cable (2), wherein a mobile phone interface (16) is arranged on the shooting assembly box (15), and the camera (5) and the LED lamps (4) are arranged at the bottom of a fixed block (3) of the exploration mechanism;
the air extraction mechanism comprises an air extraction glass tube (14) penetrating through a sampling bottle cap (18), an air extraction pump (17) and a flexible air extraction tube (13) arranged between the air extraction glass tube (14) and the air extraction pump (17), the middle part of the flexible air extraction tube (13) is positioned inside a handle (12), an adjusting needle valve (10) matched with the flexible air extraction tube (13) is arranged on the handle (12), and a needle valve hand pulling wheel (11) is arranged on the adjusting needle valve (10).
2. A sampling device for a residual liquid in a tank according to claim 1, characterized in that the outer diameter of the probe means fixing block (3) increases gradually from top to bottom.
3. A sampling device for a residual liquid in a keg as claimed in claim 1, characterized in that the sampling bottle (8) is located between the jaw uprights (702) of the plurality of jaws (7) and that the outer sides of the plurality of jaw uprights (702) are detachably sleeved with rubber bands (6).
4. A sampling device for a residual liquid in a keg according to claim 1, characterized in that the extractor tube (9) comprises an extractor tube vertical portion (901) penetrating the extractor bottle cap (18) and an extractor tube bending portion (902) arranged on top of the extractor tube vertical portion (901).
CN202110452513.6A 2021-04-26 2021-04-26 Sampling device for residual liquid in barrel Active CN113514281B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110452513.6A CN113514281B (en) 2021-04-26 2021-04-26 Sampling device for residual liquid in barrel

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Application Number Priority Date Filing Date Title
CN202110452513.6A CN113514281B (en) 2021-04-26 2021-04-26 Sampling device for residual liquid in barrel

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CN113514281B true CN113514281B (en) 2023-08-29

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