Dangerous chemical substance detection sampling device

Abstract

The utility model provides a hazardous chemical substance detection sampling device. The hazardous chemical substance detection sampling device comprises a plugging seat, a connecting seat, a cleaning connecting pipe and a sampler, an assembling groove is formed in the top face of the plugging base, and the connecting base is rotatably arranged in the assembling groove. A mounting hole and a plugging groove are formed in the bottom surface of the assembling groove, a containing hole is further formed in the connecting base, when the connecting base rotates to the sampling station, the containing hole is aligned with the mounting hole, and when the connecting base rotates to the transferring station, the containing hole is aligned with the plugging groove. The sampler comprises a sampling tube and a piston head, the sampling tube is arranged in the accommodating hole in a sliding manner, and the piston head is arranged in the sampling tube in a liftable manner. The top end of the cleaning connecting pipe is detachably connected with the bottom end of the mounting hole, and a cleaning outer conical surface is arranged at the bottom end of the cleaning connecting pipe. According to the hazardous chemical substance detecting and sampling device, the outer wall of the sampling pipe can be cleaned, and hazardous chemical substances are prevented from dripping.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of dangerous chemical detection equipment, especially a dangerous chemical detection sampling device. BACKGROUND

[0002] Dangerous chemicals refer to toxic, corrosive, explosive, flammable or other properties, which are harmful to the human body, facilities or environment. In actual work, in order to improve the quality of safety management, reasonably control the quality of dangerous chemicals, the staff needs to regularly sample and detect the dangerous chemicals in the storage tank, so as to avoid potential hazards and ensure the stable and orderly operation of the production process.

[0003] In the prior art, the detection sampling process of liquid dangerous chemicals is relatively primitive. Under normal circumstances, the staff will first extract the dangerous chemicals in the storage tank through the sampler, and then transfer the extracted sample to the laboratory for detection. However, when the dangerous chemicals to be detected are oil-like liquids such as styrene or methylnaphthalene, the viscosity of the oil-like liquids is large, so the dangerous chemicals will adhere to the outside of the sampler. After completing the sampling work, the dangerous chemicals adhering to the outside of the sampler are easy to drop during the transfer process, thereby causing environmental pollution and even causing harm to the staff. SUMMARY

[0004] Therefore, the utility model aims at providing a dangerous chemical detection sampling device to solve the above technical problems.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] A dangerous chemical detection sampling device, comprising: a plugging seat, a connecting seat, a cleaning connector and a sampler; the top surface of the plugging seat is provided with an assembly groove, and the connecting seat is rotatably arranged in the assembly groove; the bottom surface of the assembly groove is provided with a mounting hole and a plugging groove, and the mounting hole and the plugging groove are respectively located on both sides of the rotating shaft of the connecting seat; the connecting seat is further provided with a containing hole, the containing hole is aligned with the mounting hole when the connecting seat is rotated to a sampling station, and the containing hole is aligned with the plugging groove when the connecting seat is rotated to a transfer station; the sampler comprises a sampling tube and a piston head, the sampling tube is slidably arranged in the containing hole, the piston head is liftably arranged in the sampling tube, and an operating rod is arranged on the top surface of the piston head; the top end of the cleaning connector is detachably connected with the bottom end of the mounting hole, the inner diameter of the cleaning connector is equal to the outer diameter of the sampling tube, and a cleaning outer conical surface is arranged at the bottom end of the cleaning connector.

[0007] Further, the outer surface of the cleaning connector is provided with an isolation sleeve, the isolation sleeve is connected with the cleaning connector through a connecting ring, and an isolation gap is formed between the inner side wall of the isolation sleeve and the outer side wall of the cleaning connector.

[0008] Further, the dangerous chemical detection sampling device further comprises a gas supplement bottle, a splicing groove is arranged on the top surface of the connecting seat, the splicing groove and the accommodating hole are arranged on the two sides of the rotating shaft of the connecting seat respectively, and the bottle mouth of the gas supplement bottle is detachably inserted into the splicing groove.

[0009] Further, the top surface of the plugging seat is provided with a positioning bolt, and the connecting seat is provided with an arc-shaped guide notch for accommodating the positioning bolt.

[0010] Further, the top of the positioning bolt is provided with a positioning screw head, and the top surface of the connecting seat is further provided with a sampling positioning groove and a transfer positioning groove for accommodating the positioning screw head, and the sampling positioning groove and the transfer positioning groove are respectively communicated with the two ends of the arc-shaped guide notch, the sampling positioning groove is opposite to the positioning screw head when the connecting seat is rotated to the sampling station, and the transfer positioning groove is opposite to the positioning screw head when the connecting seat is rotated to the transfer station.

[0011] Further, the outer side wall of the plugging seat is provided with a sealing ring groove, and a sealing ring is arranged in the sealing ring groove.

[0012] Further, the plugging groove is internally provided with a plugging pad.

[0013] Further, the side wall of the operating rod is provided with a scale.

[0014] Compared with the prior art, the dangerous chemical detection sampling device has the following advantages:

[0015] (1) The connecting seat of the dangerous chemical detection sampling device can be rotatably arranged on the plugging seat, and a cleaning connector is arranged at the bottom end of the mounting hole, and the sampling pipe is slidably arranged in the accommodating hole. When sampling, the worker can first rotate the connecting seat to the sampling station, and then slide the sampling pipe downward, so that the bottom end of the sampling connector is inserted below the liquid level of the dangerous chemical storage tank, thereby smoothly carrying out the sample extraction work. After sampling, the worker can slide the sampling pipe upward, and the cleaning outer cone at the bottom end of the cleaning connector can scrape off the dangerous chemicals attached to the outside of the sampling pipe, so as to avoid the dripping of the dangerous chemicals during the transfer process. In addition, the worker can also rotate the connecting seat to the transfer station after the bottom end of the sampling pipe enters the accommodating hole, and then slide the sampling pipe downward again, so that the bottom end of the sampling pipe is inserted into the plugging groove, and the plugging groove can plug the bottom end of the sampling pipe to prevent the dangerous chemical sample in the sampling pipe from leaking out.

[0016] (2) The dangerous chemical product detection sampling device, the cleaning connector is externally provided with an isolation sleeve. After sampling is completed, the staff can realize the disassembly of the cleaning connector by the way of gripping the isolation sleeve, so that direct contact between the hands of the staff and the cleaning connector is avoided, and cleaning work of the cleaning connector is facilitated.

[0017] (3) The dangerous chemical product detection sampling device, the connecting seat is provided with a gas supplement bottle, and the connecting seat and the plugging seat are respectively provided with first and second gas guide holes. When sampling work is performed, the staff can transport protective gas (such as inert gas) into the dangerous chemical product storage tank through the gas supplement bottle, so that the pressure difference generated in the dangerous chemical product storage tank due to sample extraction is balanced by means of the protective gas, and then the extraction difficulty of the oily liquid is reduced.

[0018] (4) The dangerous chemical product detection sampling device, the connecting seat is provided with an arc-shaped guide notch, a sampling positioning groove and a transfer positioning groove, and the plugging seat is provided with a positioning bolt. When the connecting seat is rotated to the sampling station or the transfer station, the staff can limit the connecting seat through the positioning bolt, so as to avoid abnormal rotation of the connecting seat. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which form a part of this description, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the application illustrated in the drawings are presented by way of example or for purpose of illustration, and not as limitations of the present application. In the drawings:

[0020] Figure 1 The structural schematic view of the dangerous chemical product detection sampling device (the connecting seat is in the sampling station) according to the embodiment of the present application;

[0021] Figure 2 The sectional view of the dangerous chemical product detection sampling device (the connecting seat is in the sampling station) according to the embodiment of the present application;

[0022] Figure 3 The structural schematic view of the dangerous chemical product detection sampling device (the connecting seat is in the transfer station) according to the embodiment of the present application;

[0023] Figure 4 The sectional view of the dangerous chemical product detection sampling device (the connecting seat is in the transfer station) according to the embodiment of the present application;

[0024] Figure 5 The explosion view of the dangerous chemical product detection sampling device according to the embodiment of the present application;

[0025] Figure 6 The structural schematic view of the connecting seat according to the embodiment of the present application;

[0026] Figure 7 A structure schematic view of the plugging seat according to an embodiment of the present application is shown in the figure;

[0027] Figure 8 A structure schematic view of the cleaning connector according to an embodiment of the present application is shown in the figure.

[0028] Explanation of reference signs:

[0029] 1-plugging seat; 11-assembly groove; 12-mounting hole; 13-plugging groove; 131-plugging pad; 14-second air guide hole; 2-connection seat; 21-receiving hole; 22-splicing groove; 23-first air guide hole; 24-arc-shaped guide notch; 25-sampling positioning groove; 26-transport positioning groove; 3-cleaning connector; 31-cleaning outer conical surface; 32-isolation sleeve; 4-sampling pipe; 5-piston head; 51-operation rod; 6-air supplement bottle; 7-positioning bolt; 71-positioning nut; 8-sealing ring. DETAILED DESCRIPTION

[0030] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0031] In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0032] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] The utility model discloses below will refer to the drawing and combine the embodiment to explain in detail.

[0034] A dangerous chemical detection sampling device, its structure can be from Figures 1-8 Schematically. In the dangerous chemical detection sampling device of this embodiment, it comprises: a plugging seat 1, a connecting seat 2, a cleaning connector 3 and a sampler, wherein the plugging seat 1 is used for plugging the sampling port on the dangerous chemical storage tank to avoid the leakage of dangerous chemicals during sampling, the connecting seat 2 is used for bearing the sampler, the sampler is used for extracting samples from the dangerous chemical storage tank to facilitate subsequent detection work, and the cleaning connector 3 is used for cleaning the sampler after sampling to avoid the attachment of dangerous chemicals on the outside of the sampler.

[0035] Specifically, the sampler in this embodiment comprises a sampling tube 4 and a piston head 5, wherein the piston head 5 is arranged inside the sampling tube 4 in a liftable manner, and an operating rod 51 is arranged on the top surface of the piston head 5. In order to realize the assembly between the plugging seat 1, the connecting seat 2, the sampler and the cleaning connector 3, an assembly groove 11 should be arranged on the top surface of the plugging seat 1, and a containing hole 21 should be arranged on the connecting seat 2. When assembling, the connecting seat 2 is rotatably arranged inside the assembly groove 11, and the sampling tube 4 is slidably arranged inside the containing hole 21. In addition, a mounting hole 12 and a plugging groove 13 are further arranged on the bottom surface of the assembly groove 11, and the top end of the cleaning connector 3 is detachably connected with the bottom end of the mounting hole 12. When the connecting seat 2 enters the assembly groove 11, the mounting hole 12 and the plugging groove 13 should be respectively located on the two sides of the rotating shaft of the connecting seat 2.

[0036] When in use, the staff can rotate the connecting seat 2 at different stages of the sampling work to realize the state switching of the device. For example, Figure 1 and Figure 2 When sampling, the staff can rotate the connecting seat 2 to the sampling station to make the containing hole 21 opposite to the mounting hole 12. At this time, the staff can drive the sampling tube 4 to slide into the dangerous chemical storage tank to make the sampling tube 4 inserted below the liquid level in the dangerous chemical storage tank along the cleaning connector 3 to facilitate the extraction of samples. After sampling, the staff can drive the sampling tube 4 to slide out of the dangerous chemical storage tank to make the bottom end of the sampling tube 4 enter the containing hole 21 to clean the outside of the sampling tube 4 by means of the cleaning connector 3. After cleaning the sampling tube 4, the staff can rotate the connecting seat 2 to the transfer station, as shown in Figure 3 and Figure 4 When the connecting seat 2 is in the transfer station, the containing hole 21 will be opposite to the plugging groove 13, and at this time, the plugging groove 13 will plug the bottom end of the sampling tube 4 to avoid the leakage of samples in the sampling tube 4.

[0037] As an optional implementation of the present embodiment, the blocking groove 13 can further be provided with a blocking pad 131. When the connecting seat 2 is rotated to the transfer station, the worker can drive the sampling tube 4 to slide downward, so that the bottom end of the sampling tube 4 abuts against the blocking pad 131, thereby improving the blocking effect of the blocking groove 13 on the bottom end of the sampling tube 4 by means of the blocking pad 131.

[0038] In addition, in order to avoid leakage of hazardous chemicals along the gap between the sampling port and the blocking seat 1, a sealing ring groove can be provided on the outer side wall of the blocking seat 1, and a sealing ring 8 should be provided in the sealing ring groove, thereby improving the sealing effect between the device and the hazardous chemical storage tank by means of the sealing ring 8.

[0039] In order to facilitate cleaning of the hazardous chemicals attached to the sampling tube 4, the inner diameter of the cleaning connector 3 in the present embodiment should be equal to the outer diameter of the sampling tube 4, and a cleaning outer conical surface 31 should be provided at the bottom end of the cleaning connector 3. When the sampler completes sample extraction, the worker can drive the sampler to slide out of the hazardous chemical storage tank. During this process, the cleaning outer conical surface 31 at the bottom end of the cleaning connector 3 can scrape off the hazardous chemicals attached to the outer wall of the sampling tube 4, thereby avoiding the problem of hazardous chemical dripping during subsequent transfer of the device. Correspondingly, after completing the sampling work, the worker can also disassemble the cleaning connector 3 in order to replace or clean it, preventing cross-contamination of multiple hazardous chemicals during the sampling process.

[0040] Optionally, in order to improve the safety factor when the worker disassembles the cleaning connector 3, as shown in Figure 8 , an isolation sleeve 32 can be provided on the outside of the cleaning connector 3. The isolation sleeve 32 should be connected to the cleaning connector 3 through a connecting ring, and an isolation gap should be formed between the inner side wall of the isolation sleeve 32 and the outer side wall of the cleaning connector 3. Since the isolation sleeve 32 is provided on the outside of the cleaning connector 3, when disassembling the cleaning connector 3, the worker's hands will not directly contact the cleaning connector 3, thereby avoiding injury to the worker caused by hazardous chemicals remaining at the bottom end of the cleaning connector 3.

[0041] In order to facilitate accurate switching of the connecting seat 2 between the sampling station and the transfer station, as shown in Figure 6 and Figure 7 , a positioning bolt 7 can be provided on the top surface of the blocking seat 1, and an arc-shaped guide notch 24 for accommodating the positioning bolt 7 can be provided on the connecting seat 2. When the worker rotates the connecting seat 2, the cooperation of the positioning bolt 7 and the arc-shaped guide notch 24 can limit the rotation stroke of the connecting seat 2, so as to avoid the connecting seat 2 from being unable to accurately enter the sampling station and the transfer station due to excessive rotation.

[0042] In addition, to avoid abnormal movement of the connecting seat 2 after entering the sampling station and the transfer station, the top of the positioning bolt 7 can also be provided with a positioning screw head 71. Correspondingly, the top surface of the connecting seat 2 is also provided with a sampling positioning groove 25 and a transfer positioning groove 26 for accommodating the positioning screw head 71, and the sampling positioning groove 25 and the transfer positioning groove 26 should be communicated with both ends of the arc-shaped guide cutout 24, respectively. When the connecting seat 2 is rotated to the sampling station, the sampling positioning groove 25 will be aligned with the positioning screw head 71, at which time the worker can tighten the positioning bolt 7, so that the positioning screw head 71 enters the inside of the sampling positioning groove 25, and the connecting seat 2 is rotationally limited by the cooperation of the positioning screw head 71 and the sampling positioning groove 25. Similarly, when the connecting seat 2 is rotated to the transfer station, the transfer positioning groove 26 should also be aligned with the positioning screw head 71, and the worker can tighten the positioning bolt 7, so that the positioning screw head 71 enters the inside of the transfer positioning groove 26, and the connecting seat 2 is rotationally limited by the cooperation of the positioning screw head 71 and the transfer positioning groove 26.

[0043] In actual work process, because the viscosity of the oil liquid is usually large, and the inside of the hazardous chemical substance storage tank will form a negative pressure due to the sample entering the sampling tube 4, therefore the difficulty of sample extraction will gradually increase with the increase of the extraction amount. To solve this problem, the hazardous chemical substance detection sampling device in the embodiment can also include a gas supplement bottle 6, so that the protective gas is transported into the hazardous chemical substance storage tank through the gas supplement bottle 6 during sample extraction, to balance the pressure difference inside the hazardous chemical substance storage tank, and reduce the difficulty of sample extraction.

[0044] To facilitate the assembly of the gas supplement bottle 6, the top surface of the connecting seat 2 can be provided with a splicing groove 22, and the splicing groove 22 and the accommodating hole 21 should be located on both sides of the rotating shaft of the connecting seat 2, respectively, and the bottle mouth of the gas supplement bottle 6 can be detachably inserted into the inside of the splicing groove 22. In addition, the first gas guide hole 23 which is in communication with the splicing groove 22 can also be provided on the side wall of the connecting seat 2, and the second gas guide hole 14 which is in communication with the assembly groove 11 can also be provided on the side wall of the sealing seat 1. When the connecting seat 2 is rotated to the sampling station, the first gas guide hole 23 will be communicated with the second gas guide hole 14, so that the protective gas enters the hazardous chemical substance storage tank through the first gas guide hole 23 and the second gas guide hole 14. When the connecting seat 2 is rotated to the transfer station, the first gas guide hole 23 will be sealed by the inner wall of the assembly groove 11, and the second gas guide hole 14 will be sealed by the outer wall of the connecting seat 2, so as to avoid waste of the protective gas in the gas supplement bottle 6, and prevent the sample in the sampling tube 4 from leaking out through the second gas guide hole 14.

[0045] It should be noted that the protective gas in the gas supplement bottle 6 should be an inert gas that does not react with the dangerous chemical. The staff should flexibly adjust the protective gas according to the actual situation of the dangerous chemical before use, so as to avoid the danger caused by the protective gas entering the storage tank or affect the quality of the dangerous chemical. In addition, the staff can also control the content of the protective gas in the gas supplement bottle 6 according to the actual needs. When the viscosity of the dangerous chemical in the storage tank is too high, the protective gas can also be used to form a positive pressure in the dangerous chemical storage tank, so as to further reduce the difficulty of extracting the high-viscosity dangerous chemical by means of pressure difference.

[0046] As another optional embodiment of the present embodiment, a scale (not shown in the figure) can also be provided on the operating rod 51. When the sample is extracted, the staff can judge the displacement stroke of the piston head 5 through the scale, so as to estimate the volume of the sample extracted in the sampling tube 4, and ensure that the volume of the sample in the sampling tube 4 meets the needs of the subsequent detection work.

[0047] The effects of the above scheme are described as follows:

[0048] The dangerous chemical detection sampling device provided by the present embodiment can clean the outer wall of the sampling tube by the cleaning connector, scrape off the dangerous chemical attached on the sampling tube, and avoid the dangerous chemical from dropping during the transfer of the device. Secondly, the device can switch the working state by rotating the connecting seat, not only can facilitate the sampling work, but also can block the bottom end of the sampling tube during the transfer process to prevent the sample from leaking. In addition, the device can also transport the protective gas into the dangerous chemical storage tank through the gas supplement bottle, so as to balance the pressure difference inside the dangerous chemical storage tank and reduce the difficulty of extracting the sample.

[0049] The above only describes the preferred embodiments of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A hazardous chemical detection sampling device, characterized by, The application relates to a hazardous chemical substance detection sampling device which comprises a blocking seat (1), a connecting seat (2), a cleaning connector (3) and a sampler. The top surface of the blocking seat (1) is provided with an assembling groove (11), the connecting seat (2) is rotatably arranged in the assembling groove (11), the bottom surface of the assembling groove (11) is provided with a mounting hole (12) and a blocking groove (13), the mounting hole (12) and the blocking groove (13) are respectively located on the two sides of the rotating shaft of the connecting seat (2), the connecting seat (2) is further provided with a containing hole (21), the containing hole (21) is opposite to the mounting hole (12) when the connecting seat (2) rotates to a sampling station, and the containing hole (21) is opposite to the blocking groove (13) when the connecting seat (2) rotates to a transfer station, the sampler comprises a sampling pipe (4) and a piston head (5), the sampling pipe (4) is slidably arranged in the containing hole (21), the piston head (5) is arranged in the sampling pipe (4) in a lifting mode, and an operating rod (51) is arranged on the top surface of the piston head (5), the top end of the cleaning connector (3) is detachably connected with the bottom end of the mounting hole (12), the inner diameter of the cleaning connector (3) is equal to the outer diameter of the sampling pipe (4), and a cleaning outer conical surface (31) is arranged at the bottom end of the cleaning connector (3).

2. The hazardous chemical detection sampling device of claim 1, wherein: An isolation sleeve (32) is arranged outside the cleaning connector (3), the isolation sleeve (32) is connected with the cleaning connector (3) through a connecting ring, and an isolation gap is formed between the inner side wall of the isolation sleeve (32) and the outer side wall of the cleaning connector (3).

3. The hazardous chemical detection sampling device of claim 1, wherein: The hazardous chemical substance detection sampling device further comprises a gas supplement bottle (6), a splicing groove (22) is arranged on the top surface of the connecting seat (2), the splicing groove (22) and the containing hole (21) are respectively located on the two sides of the rotating shaft of the connecting seat (2), and the bottle opening of the gas supplement bottle (6) is detachably inserted into the splicing groove (22), a first air guide hole (23) is arranged on the side wall of the connecting seat (2) and communicates with the splicing groove (22), a second air guide hole (14) is arranged on the side wall of the blocking seat (1) and communicates with the assembling groove (11), and the first air guide hole (23) and the second air guide hole (14) communicate with each other when the connecting seat (2) rotates to the sampling station.

4. The hazardous chemical detection sampling device of claim 1, wherein: A positioning bolt (7) is arranged on the top surface of the blocking seat (1), and an arc-shaped guide notch (24) for containing the positioning bolt (7) is arranged on the connecting seat (2).

5. The hazardous chemical detection sampling device of claim 4, wherein: A positioning head (71) is arranged on the top of the positioning bolt (7), a sampling positioning groove (25) and a transfer positioning groove (26) for containing the positioning head (71) are further arranged on the top surface of the connecting seat (2), the sampling positioning groove (25) and the transfer positioning groove (26) respectively communicate with the two ends of the arc-shaped guide notch (24), the sampling positioning groove (25) is opposite to the positioning head (71) when the connecting seat (2) rotates to the sampling station, and the transfer positioning groove (26) is opposite to the positioning head (71) when the connecting seat (2) rotates to the transfer station.

6. The hazardous chemical detection sampling device of claim 1, wherein: A sealing ring groove is arranged on the outer side wall of the blocking seat (1), and a sealing ring (8) is arranged in the sealing ring groove.

7. The hazardous chemical detection sampling device of claim 1, wherein: A blocking pad (131) is arranged in the blocking groove (13).

8. The hazardous chemical detection sampling device of claim 1, wherein: A scale is provided on the side wall of the operating lever (51).

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