Liquid sampling device for chemical analysis

Abstract

The utility model relates to chemical liquid equipment technical field especially is a kind of liquid sampling device for chemical analysis and detection, including operation shell, the operation shell bottom middle is fixedly connected with electric telescopic link, the electric telescopic link output end is fixedly connected with sampling cylinder, sampling cylinder below right side is fixedly connected with discharge pipe, the discharge pipe center is fixedly connected with valve;Through the design cooperation of motor and stirring blade, so that device can be in sampling cylinder to tank car, when sampling chemical liquid in tank car, it is stirred chemical liquid before chemical liquid enters sampling cylinder, let the chemical liquid in sampling cylinder be in rotating state, improve the accuracy of chemical liquid sampling to a certain extent, avoid the stratification of chemical liquid, leading to sampling cylinder cannot take the representative sample of mixed uniform, stirring shell has detachable function simultaneously, can be installed according to the characteristics of different chemical liquid.

Description

Technical Field

[0001] This utility model relates to the field of chemical liquid equipment technology, and in particular to a liquid sampling device for chemical analysis and testing. Background Technology

[0002] Tanker trucks, also known as oil tankers or tank trucks, are large freight vehicles specifically designed for road transport of liquids, gases, or powders. Their core feature is a huge, usually cylindrical tank mounted on a truck chassis.

[0003] Patent specification CN222599244U discloses a sampling device for liquid detection and analysis in tank trucks, including a beaker and an extraction mechanism mounted on the beaker. The beaker includes a body, a discharge pipe integrally formed with the body at its lower end, and a discharge valve mounted on the discharge pipe section. The extraction mechanism includes a fixing component in the upper middle part of the beaker body, an electric telescopic rod mounted on the fixing component, a power supply component mounted on the electric telescopic rod, and handles on both sides of the power supply component. The device ensures uniform sampling of liquid from tank trucks and effectively prevents sample spillage when the sample flows into the sampling bottle.

[0004] However, in implementing the relevant technology, the above-mentioned sampling device for liquid detection and analysis in tank trucks has the following problems: Existing chemical liquid sampling devices for tank trucks mostly use simple samplers or syringe-type pull-out structures. These devices usually directly extract stationary liquids during sampling. Since chemical liquids are prone to stratification and density unevenness after transportation and standing, the collected samples cannot represent the true overall composition of the liquid in the tank truck, resulting in deviations in subsequent analysis and testing results, affecting product quality judgment and the fairness of trade settlement. In view of this, a liquid sampling device for chemical analysis and testing is provided to overcome the above defects. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a liquid sampling device for chemical analysis and testing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a liquid sampling device for chemical analysis and detection, comprising an operating housing, an electric telescopic rod fixedly connected to the bottom middle of the operating housing, a sampling cylinder fixedly connected to the output end of the electric telescopic rod, a discharge pipe fixedly connected to the lower right side of the sampling cylinder, and a valve fixedly connected to the center of the discharge pipe.

[0007] As a further description of the above technical solution: a flange is fixedly connected to the bottom of the sampling cylinder, a stirring shell is fixedly connected to the inner side of the flange, a motor is fixedly connected to the upper part of the stirring shell, an output shaft is fixedly connected to the output end of the motor, a stirring blade is fixedly connected to the outer side of the output shaft, hollow plates are fixedly connected to the left and right sides above the electric telescopic rod, a compression spring is fixedly connected to the top of the inner side of the hollow plate, a support plate is fixedly connected to the end of the compression spring away from the hollow plate, and the surface of the support plate is slidably connected to the inner wall of the hollow plate. An insertion hole is provided in the middle of the outer side of the upper surface of the support plate. A fixed seat is fixedly connected to the outer side of the upper surface of the hollow plate. A slider is slidably connected to the inner side of the fixed seat. An insertion rod is fixedly connected to the lower end of the slider. The outer side of the insertion rod is slidably connected to the inner wall of the insertion hole on the upper outer side of the hollow plate and the outer side of the upper surface of the support plate, respectively. When sampling chemical liquids in a tanker truck, the chemical liquids can be stirred before entering the sampling cylinder, so that the chemical liquids entering the sampling cylinder are in a rotating state, which improves the accuracy of chemical liquid sampling to a certain extent.

[0008] As a further description of the above technical solution: a control switch is provided on the top of the operating housing, and the control switch controls the start and stop of the electric telescopic rod. Handles are fixedly connected to both ends of the operating housing, so that the operator can use the electric telescopic rod to drive the sampling cylinder into the tank of the tank truck to take samples.

[0009] As a further description of the above technical solution: the flange is fixed to the bottom of the sampling cylinder by bolts, and an annular sealing ring is provided on the top of the flange, with the top of the sealing ring contacting the bottom of the sampling cylinder, which can prevent chemical liquid from seeping into the space between the bottom of the sampling cylinder and the top of the stirring shell, thus preventing the motor located inside the stirring shell from being corroded by the chemical liquid.

[0010] As a further description of the above technical solution: a placement chamber is provided on the upper part of the inside of the stirring shell, and the motor is fixed in the placement chamber. The motor integrates a battery and a charging system, and a through hole is provided in the middle of the top of the placement chamber inside the stirring shell. The through hole allows an external charging cable to connect to the charging system of the motor. The motor has a battery and a charging system and is not controlled by the control switch on the top of the operating shell, so that the stirring shell has a detachable function and can be installed according to the characteristics of different chemical liquids.

[0011] As a further description of the above technical solution: a through hole is provided in the middle of the outer side of the top of the support plate, and the diameter of the through hole matches the cross section diameter of the insertion rod. The through hole is perpendicular to the insertion hole provided on the top of the support plate that is fully inserted into the hollow plate. This can increase the lateral length of the operating housing and prevent the operating housing and the sampling cylinder below it from falling into the tank of the tank truck due to the operator's slipping hand during the sampling process, thereby improving the overall sampling safety of the equipment to a certain extent.

[0012] As a further description of the above technical solution: the cross-sectional shape of the slider is convex, and the inner side of the fixed seat is provided with a groove from bottom to top, and the cross-sectional shape of the groove matches the cross-sectional shape of the slider, allowing the slider to slide only longitudinally inside the fixed seat and not to break free from the restriction of the fixed seat. When the support plate pops out, the slider slides upward to the inner top of the fixed seat, so that the bottom end of the insertion rod is flush with the inner wall of the upper end of the fixed seat. When the support plate is fixed and prevented from popping outward, the slider drives the insertion rod to insert into the insertion hole on the outer side of the top of the support plate. With the continuous outward pushing force of the compressed spring, the insertion rod and the slider are fixed below the fixed seat. The fixing method is simple and efficient.

[0013] This utility model has the following beneficial effects:

[0014] This utility model designs a liquid sampling device for chemical analysis and testing. Through the coordinated design of the motor and stirring blades, the device can stir the chemical liquid before it enters the sampling cylinder, ensuring the liquid is in a rotating state. This improves the accuracy of chemical liquid sampling and avoids the inability to obtain a representative, uniformly mixed sample due to liquid stratification. The stirring shell is detachable and can be installed according to the characteristics of different chemical liquids. Hollow plates are installed on both sides above the electric telescopic rod, with internal support plates supported by compression springs. During chemical liquid sampling, the slider can be pushed upwards, allowing the support plates to slide outwards under the spring's return force. This increases the lateral length of the operating housing, preventing the operating housing and the sampling cylinder below from falling into the tanker due to slippage during sampling, thus improving the overall sampling safety of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the exploded structure of the sampling cylinder and stirring shell of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the sampling cylinder and stirring shell of this utility model, which explodes and flips 180° longitudinally.

[0018] Figure 4 This is a schematic diagram of the longitudinal cross-sectional structure of the stirring shell of this utility model;

[0019] Figure 5 This is a schematic diagram of the longitudinal cross-sectional structure of the hollow plate of this utility model;

[0020] Figure 6 This is a schematic diagram of the top cross-sectional structure of the fixing base of this utility model.

[0021] Legend:

[0022] 1. Operating housing; 2. Electric telescopic rod; 3. Sampling cylinder; 4. Discharge pipe; 5. Valve; 6. Flange; 7. Mixing shell; 8. Hollow plate; 9. Support plate; 10. Insertion hole; 11. Fixing base; 12. Sliding block; 13. Output shaft; 14. Motor; 15. Mixing blade; 16. Insertion rod; 17. Compression spring. Detailed Implementation

[0023] Reference Figures 1 to 6 The present invention provides a liquid sampling device for chemical analysis and testing, including an operating housing 1, an electric telescopic rod 2 is provided in the middle of the bottom of the operating housing 1, the output end of the electric telescopic rod 2 is welded to the middle of the top of the sampling cylinder 3, the lower right side of the sampling cylinder 3 is penetrated and fixed by the discharge pipe 4, and a manual valve 5 is provided in the center of the discharge pipe 4.

[0024] The bottom of the sampling cylinder 3 is fixed to the flange 6 by bolts. The inner side of the flange 6 is penetrated and welded by the stirring shell 7. The upper part of the stirring shell 7 is inserted and fixed by the motor 14. The output end of the motor 14 is provided with an output shaft 13. The outer side of the output shaft 13 penetrates the middle of the stirring blade 15 and is fixed. Hollow plates 8 are welded to the left and right sides above the electric telescopic rod 2. A compression spring 17 is welded to the top of the inner side of the hollow plate 8. A support plate 9 is welded to the end of the compression spring 17 away from the hollow plate 8. The surface of the support plate 9 is slidably connected to the inner wall of the hollow plate 8. An insertion hole is opened in the middle of the outer side of the upper end of the support plate 9. Hole 10, a fixing seat 11 is welded to the outer side of the upper end face of the hollow plate 8, the inner side of the fixing seat 11 is inserted by the slider 12 and slides longitudinally, the lower end face of the slider 12 is welded with the insertion rod 16, the outer side of the insertion rod 16 is slidably connected to the inner wall of the insertion hole 10 on the upper outer side of the hollow plate 8 and the outer side of the upper end face of the support plate 9 respectively, so that when the sampling cylinder 3 is used to sample the chemical liquid in the tank truck, the chemical liquid is stirred before entering the sampling cylinder 3, so that the chemical liquid entering the sampling cylinder 3 is in a rotating state, which improves the accuracy of chemical liquid sampling to a certain extent.

[0025] As a further implementation of the above technical solution: a control switch is provided on the top of the operating housing 1, and the control switch controls the start and stop of the electric telescopic rod 2. Handles are fixedly connected to both ends of the operating housing 1, so that the operator can use the electric telescopic rod 2 to drive the sampling cylinder 3 into the tank of the tank truck to take samples.

[0026] As a further implementation of the above technical solution: the flange 6 is fixed to the bottom of the sampling cylinder 3 by bolts, and an annular sealing ring is provided on the top of the flange 6, with the top of the sealing ring contacting the bottom of the sampling cylinder 3. This can prevent chemical liquid from seeping into the space between the bottom of the sampling cylinder 3 and the top of the stirring shell 7, which would cause the motor 14 located inside the stirring shell 7 to be corroded by the chemical liquid.

[0027] As a further implementation of the above technical solution: a placement chamber is provided inside the upper part of the stirring shell 7, and the motor 14 is fixed inside the placement chamber. The motor 14 integrates a battery and a charging system, and a through hole is provided in the middle of the top of the placement chamber inside the stirring shell 7. The through hole allows an external charging cable to connect to the charging system of the motor 14. The motor 14 has a battery and a charging system and is not controlled by the control switch on the top of the operating shell 1, so that the stirring shell 7 has a detachable function and can be installed according to the characteristics of different chemical liquids.

[0028] As a further implementation of the above technical solution: a through hole is provided in the middle of the outer side of the top of the support plate 9, and the diameter of the through hole matches the cross section diameter of the insertion rod 16. The through hole is perpendicular to the insertion hole 10 provided on the top of the support plate 9, which is fully inserted into the hollow plate 8. This can increase the lateral length of the operating housing 1 and prevent the operator from slipping during the sampling process, causing the operating housing 1 and the sampling cylinder 3 below it to fall into the tank of the tank truck. This improves the overall sampling safety of the equipment to a certain extent.

[0029] As a further implementation of the above technical solution: the slider 12 has a convex cross-section, and the inner side of the fixing seat 11 has a groove that extends from the bottom upwards. The cross-section shape of the groove matches the cross-section shape of the slider 12, allowing the slider 12 to slide only longitudinally inside the fixing seat 11 and not to break free from the constraint of the fixing seat 11. When the support plate 9 pops out, the slider 12 slides upwards to the inner top of the fixing seat 11, making the bottom end of the insertion rod 16 flush with the upper inner wall of the fixing seat 11. When the support plate 9 is fixed and prevented from popping outwards, the slider 12 drives the insertion rod 16 to insert into the insertion hole 10 on the outer side of the top of the support plate 9. With the continuous outward pushing force of the compression spring 17, the insertion rod 16 and the slider 12 are fixed below the fixing seat 11. The fixing method is simple and efficient.

[0030] Working principle:

[0031] When using this utility model, the operator holds the handles on both sides of the operating housing 1 and starts the electric telescopic rod 2 through the control switch on the top, pushing the sampling cylinder 3 downward into the tank truck. At the same time, the motor 14 in the stirring shell 7 is started, and the motor 14 drives the output shaft 13 to rotate, thereby causing the stirring blade 15 to stir the chemical liquid in the tank truck and break the stratification. After the liquid is stirred evenly, the sampling cylinder 3 continues to descend, so that the uniform liquid in the rotating state enters the sampling cylinder 3 from above the stirring shell 7. After sampling is completed, the electric telescopic rod 2 is operated to raise the sampling cylinder 3 to the outside of the tank truck, and the sample is discharged into the collection container by opening the valve 5 on the discharge pipe 4. During the operation, the slider 12 in the fixed seat 11 can be moved as needed to disengage the insertion rod 16 from the insertion hole 10 on the support plate 9. The compression spring 17 then pushes the support plate 9 to extend out from the hollow plate 8, increasing the lateral support length of the operating housing 1 and preventing the equipment from slipping. After use, the slider 12 can be pressed down to re-insert the insertion rod 16 into the insertion hole 10, and the support plate 9 can be fixed and retracted.

[0032] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A liquid sampling device for chemical analysis and detection, comprising an operating housing (1), characterized in that: An electric telescopic rod (2) is fixedly connected to the bottom middle of the operating housing (1). A sampling cylinder (3) is fixedly connected to the output end of the electric telescopic rod (2). A discharge pipe (4) is fixedly connected to the lower right side of the sampling cylinder (3). A valve (5) is fixedly connected to the center of the discharge pipe (4).

2. The liquid sampling device for chemical analysis and detection according to claim 1, characterized in that: The sampling cylinder (3) is fixedly connected to a flange (6) at its bottom. A stirring shell (7) is fixedly connected to the inside of the flange (6). A motor (14) is fixedly connected to the upper part of the stirring shell (7). An output shaft (13) is fixedly connected to the output end of the motor (14). A stirring blade (15) is fixedly connected to the outside of the output shaft (13). Hollow plates (8) are fixedly connected to the left and right sides above the electric telescopic rod (2). A compression spring (17) is fixedly connected to the top of the inner side of the hollow plate (8). The compression spring (17) is far away from the hollow plate (6). One end of the support plate (9) is fixedly connected to the support plate (9). The surface of the support plate (9) is slidably connected to the inner wall of the hollow plate (8). An insertion hole (10) is opened in the middle of the outer side of the upper end face of the support plate (9). A fixing seat (11) is fixedly connected to the outer side of the upper end face of the hollow plate (8). A slider (12) is slidably connected to the inner side of the fixing seat (11). An insertion rod (16) is fixedly connected to the lower end face of the slider (12). The outer side of the insertion rod (16) is slidably connected to the inner wall of the insertion hole (10) on the upper outer side of the hollow plate (8) and the outer side of the upper end face of the support plate (9).

3. A liquid sampling device for chemical analysis and detection according to claim 1, characterized in that: The top of the operating housing (1) is equipped with a control switch, which controls the start and stop of the electric telescopic rod (2). Handles are fixedly connected to both the left and right ends of the operating housing (1).

4. A liquid sampling device for chemical analysis and detection according to claim 2, characterized in that: The flange (6) is fixed to the bottom of the sampling cylinder (3) by bolts. The top of the flange (6) is provided with an annular sealing ring, and the top of the sealing ring is in contact with the bottom of the sampling cylinder (3).

5. A liquid sampling device for chemical analysis and detection according to claim 2, characterized in that: The stirring shell (7) has a placement chamber at the top inside, and the motor (14) is fixed inside the placement chamber. The motor (14) integrates a battery and a charging system. A through hole is provided in the middle of the top of the placement chamber at the top inside the stirring shell (7). The through hole is used for connecting an external charging cable to the charging system of the motor (14).

6. A liquid sampling device for chemical analysis and detection according to claim 2, characterized in that: The support plate (9) has a through hole on the outer side of the top, which is located from top to bottom. The diameter of the through hole matches the cross section diameter of the insertion rod (16). The through hole is perpendicular to the insertion hole (10) on the top of the support plate (9) which is fully inserted into the hollow plate (8).

7. A liquid sampling device for chemical analysis and detection according to claim 2, characterized in that: The slider (12) has a convex cross-section, and the inner side of the fixing seat (11) has a groove that extends from the bottom upward, and the cross-section shape of the groove matches the cross-section shape of the slider (12).

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