Chemical reagent sampling device

Abstract

The utility model provides a chemical reagent sampling device which comprises a liquid storage container used for containing liquid to be sampled; a first pipe opening and a second pipe opening are formed in the liquid guide pipe, and the first pipe opening is communicated with the liquid storage container; the collecting container is communicated with the second pipe orifice; the pressure regulating assembly is arranged in the liquid storage container and is used for regulating the internal air pressure of the liquid storage container, so that the to-be-sampled liquid in the liquid storage container flows to the collecting container through the liquid guide pipe. According to the chemical reagent sampling device provided by the embodiment of the invention, on the basis of the setting, the flowing stability of the liquid chemical reagent in the sampling process can be ensured, the risk that the liquid chemical reagent is splashed is reduced, and the liquid chemical reagent can be prevented from being attached to the outer wall of the container in the sampling process; the contact probability of an operator and a liquid chemical reagent is reduced, so that the risk that the operator is chemically burnt by the chemical reagent is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of chemical reagent sampling, and in particular to a chemical reagent sampling device. Background Art

[0002] In the process of analysis, testing and scientific experiments, people often need to use liquid chemical reagents, and most of the liquid chemical reagents are corrosive. In the process of transferring liquid chemical reagents, the existing sampling devices have the risk of splashing or overflowing. Liquid chemical reagents are easy to splash or remain on the outer wall of the container, which can easily cause chemical burns to the operator's fingers. Utility Model Content

[0003] The present disclosure aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, the present disclosure provides a chemical reagent sampling device.

[0005] In view of this, according to an embodiment of the present disclosure, a chemical reagent sampling device is proposed, comprising:

[0006] A liquid storage container, used for containing the liquid to be sampled;

[0007] The liquid guiding tube is formed with a first pipe opening and a second pipe opening, and the first pipe opening is connected to the liquid storage container;

[0008] A collecting container connected to the second pipe opening;

[0009] The pressure regulating component is arranged in the liquid storage container and is used for regulating the internal air pressure of the liquid storage container so that the liquid to be sampled in the liquid storage container flows to the collection container through the liquid guide tube.

[0010] In a feasible implementation, the voltage regulating component includes:

[0011] A pressure regulating part, which is made of elastic material and has a gas storage space, and has a first working state and a second working state;

[0012] An air guide portion, one end of which is connected to the air storage space, and the other end of which is connected to the interior of the liquid storage container;

[0013] Wherein, a first volume of the gas storage space when the pressure regulating part is in the first working state is greater than a second volume of the gas storage space when the pressure regulating part is in the second working state.

[0014] In a feasible implementation manner, the voltage regulating component further includes:

[0015] The transition part forms a transition space, and the air storage space is connected to the air guide part through the transition space.

[0016] In a feasible embodiment, the liquid storage container includes:

[0017] The container body is used to contain the liquid to be sampled, and the container body is formed with a container mouth;

[0018] A sealing plug is arranged on the container body and is used to cover or open the container opening. The sealing plug is provided with a first through hole and a second through hole;

[0019] The air guide portion is disposed through the first through hole, and the liquid guide tube is disposed through the second through hole.

[0020] In a feasible implementation, the height of the collecting container is higher than the height of the container opening.

[0021] In a possible implementation, the second pipe opening is located inside the collecting container.

[0022] In a feasible embodiment, the collecting container is arranged obliquely relative to the liquid storage container, and the second pipe opening is arranged horizontally.

[0023] In a feasible implementation manner, the collecting container is movably connected to the liquid guiding tube, so that the inner bottom wall of the collecting container can be close to or away from the second pipe opening.

[0024] In a feasible implementation, it also includes:

[0025] A slide rail portion connected to the collection container, the slide rail being arranged along the inner bottom wall of the collection container to the collection port of the collection container;

[0026] A slider portion is connected to the liquid guiding tube and is slidably disposed on the slide rail portion;

[0027] The limiting parts are detachably arranged at the two ends of the slide rail part and are used for abutting against the sliding block part.

[0028] In a feasible implementation manner, the slide rail portion, the slider portion and the limiting portion are all made of thermoplastic resin.

[0029] Compared with the prior art, the present disclosure includes at least the following beneficial effects: a chemical reagent sampling device provided in an embodiment of the present disclosure includes: a liquid storage container for accommodating liquid to be sampled; a liquid guide tube, formed with a first pipe port and a second pipe port, the first pipe port being connected to the liquid storage container; a collection container being connected to the second pipe port; a pressure regulating assembly, arranged in the liquid storage container, for regulating the internal air pressure of the liquid storage container, so that the liquid to be sampled in the liquid storage container flows to the collection container through the liquid guide tube. Based on the aforementioned arrangement, the chemical reagent sampling device proposed in an embodiment of the present disclosure can ensure the stability of the flow of the liquid chemical reagent during the sampling process, reduce the risk of splashing of the liquid chemical reagent, and at the same time avoid the liquid chemical reagent from adhering to the outer wall of the container, reduce the probability of contact between the operator and the liquid chemical reagent, and thus help reduce the risk of chemical burns caused by the chemical reagent to the operator.

[0030] The chemical reagent sampling device described in the present disclosure, other advantages, objectives and features of the present disclosure will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the exemplary embodiments below. The accompanying drawings are only for the purpose of illustrating exemplary embodiments and are not to be considered as limiting the present disclosure. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0032] Figure 1 A schematic structural diagram of a chemical reagent sampling device according to an embodiment of the present disclosure;

[0033] Figure 2 A schematic application scenario diagram of a chemical reagent sampling device according to an embodiment of the present disclosure.

[0034] Figure 3 A schematic structural diagram of a slide rail portion, a slider portion and a limit portion of an embodiment provided in the present disclosure.

[0035] Figure 4 A schematic cross-sectional view of a slide rail portion and a slider portion of an embodiment provided in the present disclosure.

[0036] Figure 5 A schematic structural diagram of a limiting portion of an embodiment provided in the present disclosure.

[0037] in, Figures 1 to 5 The corresponding relationship between the reference numerals and the component names is as follows:

[0038] Liquid storage container 100, liquid guide tube 200, collection container 300, pressure regulating assembly 400;

[0039] Container body 110, sealing plug 120, container cover 130;

[0040] A pressure regulating portion 410, an air guiding portion 420, and a transition portion 430;

[0041] The slide rail portion 510 , the slider portion 520 , and the limit portion 530 . DETAILED DESCRIPTION

[0042] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0043] like Figure 1 and Figure 2 As shown, according to an embodiment of the present disclosure, a chemical reagent sampling device is proposed, including: a liquid storage container 100, used to contain the liquid to be sampled; a liquid guide tube 200, formed with a first pipe opening and a second pipe opening, the first pipe opening is connected to the liquid storage container 100; a collecting container 300, connected to the second pipe opening; a pressure regulating component 400, arranged in the liquid storage container 100, for regulating the internal air pressure of the liquid storage container 100, so that the liquid to be sampled in the liquid storage container 100 flows to the collecting container 300 through the liquid guide tube 200.

[0044] The chemical reagent sampling device proposed in the embodiment of the present disclosure includes a liquid storage container 100, a liquid guide tube 200, a collection container 300 and a pressure regulating component 400, wherein the pressure regulating component 400 is arranged on the liquid storage container 100, and the first pipe opening and the second pipe opening of the liquid guide tube 200 are respectively connected to the liquid storage container 100 and the collection container 300, the liquid storage container 100 is used to contain the liquid to be sampled, and the collection container 300 is used to contain the liquid sample taken out from the liquid storage container 100, and the pressure regulating component 400 can adjust the internal air pressure of the liquid storage container 100. In actual application, the internal air pressure of the liquid storage container 100 can be adjusted by the pressure regulating component 400, so that a pressure difference is generated between the interior of the liquid storage container 100 and the interior of the liquid guide tube 200. Under the action of the pressure difference, the liquid to be sampled flows from the first pipe opening into the liquid guide tube 200, and flows out from the second pipe opening into the collection container 300, thereby realizing the sampling of the liquid to be sampled.

[0045] It is understandable that when sampling is required, the internal air pressure of the liquid storage container 100 can be increased by the pressure regulating assembly 400, so that the internal air pressure of the liquid storage container 100 is greater than the internal air pressure of the liquid guiding tube 200, thereby generating a pressure difference between the interior of the liquid storage container 100 and the interior of the liquid guiding tube 200. Under the action of the pressure difference, the liquid to be sampled flows from the first pipe opening into the liquid guiding tube 200, and flows out from the second pipe opening into the collection container 300, thereby achieving sampling of the liquid to be sampled;

[0046] It is understandable that the pressure regulating component 400 can also reduce the internal air pressure of the liquid storage container 100. After the sampling is completed, the air pressure inside the liquid storage container 100 is reduced by adjusting the pressure regulating component, so that the pressure inside the liquid catheter 200 is greater than the pressure inside the liquid storage container 100, so that the excess reagent inside the liquid catheter 200 can flow back to the liquid storage container 100, avoiding the waste of the liquid to be sampled.

[0047] It should be noted that in the process of analysis, testing and scientific experiments, people often need to use liquid chemical reagents, such as strong acids such as hydrochloric acid, nitric acid, and sulfuric acid, and strong bases such as sodium hydroxide and potassium hydroxide. These liquid chemical reagents are all corrosive. In traditional technologies, sampling is often carried out by pouring using measuring cups and cylinders. In the process of transferring liquid chemical reagents, there is a risk of splashing or overflowing. Liquid chemical reagents are easily splashed or remain on the outer wall of the container. This causes the operator to easily touch the liquid chemical reagent being sampled if he is not careful, which can easily cause chemical burns to the operator. Compared with the conventional technology, the chemical reagent sampling device proposed in the embodiment of the present disclosure can directly transfer the liquid chemical reagent to be sampled from the storage container through the liquid conduit 200 to the collection container 300 by utilizing the pressure difference, so that the liquid chemical reagent can stably flow into the collection container 300, thereby ensuring the stability of the flow of the liquid chemical reagent during the sampling process and reducing the risk of splashing of the liquid chemical reagent. At the same time, the liquid chemical reagent can be directly introduced into the collection container 300 to prevent the liquid chemical reagent from adhering to the outer wall of the container during the sampling process, thereby reducing the probability of contact between the operator and the liquid chemical reagent, thereby helping to reduce the risk of chemical burns to the operator caused by the chemical reagent.

[0048] Exemplarily, the liquid storage container 100, the liquid guiding tube 200 and the collecting container 300 may be made of glass material, which can prevent the corrosion of the liquid chemical reagent and facilitate the observation of the state of the liquid chemical reagent.

[0049] In some examples, such as Figure 1 and Figure 2As shown, the pressure regulating assembly 400 includes: a pressure regulating part 410, which is made of elastic material and forms an air storage space, and the pressure regulating part 410 has a first working state and a second working state; an air guiding part 420, one end of the air guiding part 420 is connected to the air storage space, and the other end is connected to the inside of the liquid storage container 100; wherein, the first volume of the air storage space when the pressure regulating part 410 is in the first working state is greater than the second volume of the air storage space when the pressure regulating part 410 is in the second working state.

[0050] In the above technical solution, the pressure regulating assembly 400 includes a pressure regulating part 410 and an air guiding part 420, wherein one end of the air guiding part 420 is connected to the interior of the liquid storage container 100, and the other end of the air guiding part 420 is connected to the air storage space of the pressure regulating part 410. The pressure regulating part 410 is made of elastic material and can be deformed under the action of external force, thereby affecting the size of the air storage space. When no external force acts on the pressure regulating part 410, the pressure regulating part 410 is in a first working state, at which time the volume of the air storage space is the first volume. When the pressure regulating part 410 is squeezed by an external force, the pressure regulating part 410 is in a second working state, at which time the air storage space is reduced, and at this time the container of the air storage space is the second volume. When the pressure regulating part 410 is switched from the first working state to the second working state, the air storage space is The volume of the space gradually decreases, and the air in the air storage space enters the liquid storage container 100 through the air guide part 420, so that the air pressure in the liquid storage container 100 increases, so that the pressure in the liquid storage container 100 is greater than the pressure in the liquid guide tube 200, resulting in a pressure difference, and the liquid to be sampled enters the liquid guide tube 200 in accordance with the pressure difference, and enters the collection container 300 through the liquid guide tube 200; when the pressure regulating part 410 is switched from the second working state to the first working state, the volume of the air storage space gradually increases, and the air in the liquid storage container 100 will be sucked into the air storage space, and the air pressure in the liquid storage container 100 decreases, so that the pressure in the liquid storage container 100 is less than the pressure in the liquid guide tube 200, resulting in a pressure difference, and the liquid to be sampled in the liquid guide tube 200 will be returned to the liquid storage container 100 in accordance with the pressure difference.

[0051] Exemplarily, the voltage regulating portion 410 may be a hollow pear-shaped silica gel ball.

[0052] In some examples, such as Figure 1 and Figure 2 As shown, the pressure regulating assembly 400 further includes: a transition portion 430 forming a transition space, and the gas storage space is connected to the gas guiding portion 420 through the transition space.

[0053] In the above technical solution, the regulating component also includes a transition part 430, and the transition part 430 forms a transition space, one end of the transition space is connected to the gas storage space, and the other end is connected to the air guide part 420. Such a configuration allows the gas flow between the gas storage space and the air guide part 420 to pass through the transition space. When the pressure regulating part 410 is converted from the second working state to the first working state, the liquid to be sampled in the liquid storage space is prevented from directly entering the pressure regulating part 410 through the air guide part 420, but instead enters the transition space first and accumulates in the transition space. This can reduce the risk of the pressure regulating part 410 being corroded by the liquid to be sampled, which is beneficial to increasing the service life of the device.

[0054] In some examples, such as Figure 1 and Figure 2 As shown, the liquid storage container 100 includes: a container body 110, used to contain the liquid to be sampled, and the container body 110 is formed with a container mouth; a sealing plug 120, which is arranged on the container body 110 and is used to cover or open the container mouth, and the sealing plug 120 is provided with a first through hole and a second through hole; wherein, the air guide part 420 is passed through the first through hole, and the liquid guide tube 200 is passed through the second through hole.

[0055] In the above technical solution, the liquid storage container 100 includes a container body 110 and a sealing plug 120. The sealing plug 120 is arranged on the container body 110. The container body 110 is used to contain the liquid to be sampled. The sealing plug 120 is used to cover or open the container mouth of the container body 110. At the same time, the sealing plug 120 is provided with a first through hole and a second through hole. The first through hole is used to penetrate the air guide part 420, and the second through hole is used to penetrate the liquid guide tube 200. That is, the air guide part 420 and the liquid guide tube 200 are penetrated on the sealing plug 120 of the container mouth. Such an arrangement can improve the sealing performance of the container body 110, so that the container body 110 is only connected to the outside world through the air guide part 420 and the liquid guide tube 200. When the pressure regulating part 410 is increased or decreased in the container body 110, the pressure relief caused by the container body 110 being connected to the outside world can be avoided, which is beneficial to improving the pressure regulating efficiency of the pressure regulating part 410.

[0056] Exemplarily, the position of the container mouth is far away from the inner bottom wall of the container body 110, so that the pressure regulating part 410 can be far away from the liquid to be sampled, which is beneficial to reduce the probability of the liquid to be sampled entering the pressure regulating part 410 and causing corrosion.

[0057] Exemplarily, an interference fit is adopted between the first through hole and the air guiding portion 420 , and an interference fit is also adopted between the second through hole and the liquid guiding portion, which is beneficial to improving the sealing performance of the container body 110 , and further beneficial to improving the pressure regulating efficiency of the pressure regulating portion 410 .

[0058] Exemplarily, the sealing plug 120 may include a plug body and a protective pad, which is sleeved on the plug body. When the sealing plug 120 covers the container mouth, the protective pad is located between the container body 110 and the plug body. The protective pad is used to prevent the liquid to be sampled from corroding the plug body. The protective pad may be made of polytetrafluoroethylene and has a certain degree of corrosion resistance.

[0059] Exemplarily, the liquid storage container 100 may also include a container cover 130, which is mounted on the container mouth. The container cover 130 is threadedly connected to the container body 110. The liquid guide tube 200 and the air guide part 420 are both passed through the container cover 130. The container cover 130 can prevent external contaminants from entering the container mouth.

[0060] In some examples, such as Figure 1 and Figure 2 As shown, the height of the collecting container 300 is higher than the height of the container mouth.

[0061] In the above technical solution, the position height of the collecting container 300 is higher than the position height of the container mouth. Since the liquid to be sampled flows in through the first pipe mouth and then flows out through the second pipe mouth under the action of the pressure difference, the position height of the collecting container 300 is higher than the position height of the container mouth, which can prevent the liquid to be sampled from continuously flowing from the liquid storage container 100 to the collecting container 300 under the action of the liquid pressure.

[0062] In some examples, such as Figure 1 and Figure 2 As shown, the second nozzle is located inside the collecting container 300 .

[0063] In the above technical solution, the second tube opening of the liquid guide tube 200 is located inside the collecting container 300, so that the liquid to be sampled from the liquid storage container 100 can directly enter the collecting container 300 through the liquid guide tube 200, thereby avoiding splashing of the sampled liquid and preventing the outer wall of the collecting container 300 from being splashed onto the liquid chemical reagent. At the same time, the liquid guide tube 200 can be located at a position higher than the heights of the collecting container 300 and the liquid storage container 100, so that the liquid to be sampled in the liquid storage container 100 can flow between the liquid storage container 100 and the collecting container 300 through the liquid guide portion in a natural state, and the pressure regulation is not required. The pressure regulation of the part 410 is used to realize the flow of the sampled liquid between the liquid storage container 100 and the collection container 300, which is beneficial to improve the stability of the flow of the sampled liquid between the liquid storage container 100 and the collection container 300. In addition, the second pipe mouth is located inside the collection container 300. When too much sampled liquid flows into the collection container 300, the second working state of the pressure regulating part 410 can be gradually converted to the first working state, so that more sampled liquid inside the collection container 300 is sucked into the liquid guide tube 200 through the second pipe mouth, and then flows back to the liquid storage container 100 from the first pipe mouth, avoiding the waste of sampled liquid.

[0064] It is understandable that by reacting by dumping the sampled liquid in the collection container 300 , it is also possible to prevent the sampled liquid in the liquid storage container 100 from flowing into the collection container 300 through the liquid conduit 200 and then flowing from the collection container 300 into the reaction device, thereby affecting the reaction effect.

[0065] In some examples, such as Figure 1 and Figure 2 As shown, the collecting container 300 is arranged obliquely relative to the liquid storage container 100, and the second nozzle is arranged horizontally.

[0066] In the above technical solution, the collecting container 300 is arranged tilted relative to the liquid storage container 100, that is, there is a certain angle between the collecting container 300 and the liquid storage container 100. Such an arrangement can ensure that when the liquid sample in the collecting container 300 is poured out, the liquid sample in the collecting container 300 flows into the reaction device under the action of gravity, and the liquid sample in the liquid storage container 100 will not be poured out of the liquid storage container 100. At the same time, the second pipe mouth is used for horizontal arrangement, that is, the second pipe mouth is used to be approximately parallel to the liquid level of the liquid sample in the collecting container 300, so that the liquid sample in the collecting container 300 can be sucked out through the second pipe mouth, and it can be ensured that the liquid level of the liquid sample finally remaining in the collecting container 300 is at the same position height as the second pipe mouth, thereby achieving the effect of quantitative sampling.

[0067] In some examples, such as Figure 1 and Figure 2 As shown, the collecting container 300 is movably connected to the catheter 200 so that the inner bottom wall of the collecting container 300 can be close to or away from the second tube opening.

[0068] In the above technical solution, a movable connection is adopted between the collecting container 300 and the liquid guiding tube 200, so that the distance between the inner bottom wall of the collecting container 300 and the second tube opening can be increased or decreased, thereby controlling the distance between the second tube opening and the inner bottom wall of the collecting container 300 to control the amount of liquid sample finally obtained by the collecting container 300.

[0069] It can be understood that scale lines can be set on the collection container 300, and the scale lines are used to represent the volume in the current position of the collection container 300. When the second pipe mouth is at the same position height as a certain scale line, sampling of the liquid sample of that volume can be achieved. By adjusting the proximity or distance between the second pipe mouth and the inner bottom wall of the collection container 300, the second pipe mouth can be at the same position height as different scale lines, thereby achieving quantitative sampling of different volumes of liquid to be sampled.

[0070] In some examples, such as Figures 1 to 5As shown, it also includes: a slide rail portion 510, which is connected to the collection container 300, and the slide rail portion 510 is arranged along the inner bottom wall of the collection container 300 to the collection port of the collection container 300; a slider portion 520, which is connected to the liquid guide tube 200, and the slider portion 520 is slidably arranged on the slide rail portion 510; and a limiting portion 530, which is detachably arranged at both ends of the slide rail portion 510 and is used to abut the slider portion 520.

[0071] In the above technical solution, a slide rail portion 510, a slider portion 520 and a limit portion 530 are also included, wherein the slide rail portion 510 is connected to the collection container 300, and the slider portion 520 can slide on the slide rail portion 510. The extension direction of the slide rail portion 510 is along the inner bottom wall of the collection container 300 to the collection port of the collection container 300. When the slider portion 520 is fixed, the collection container 300 can move along the inner bottom wall of the collection container 300 to the collection port of the collection container 300, thereby realizing that the second pipe mouth is close to or away from the collection container. At the inner bottom of the container 300, the slider portion 520 can be connected to the catheter 200, which can not only meet the functional requirements, but also improve the integration of the device and avoid occupying too much space. Limiting portions 530 can also be set at both ends of the slide rail portion 510. The limiting portions 530 are used to abut the slider portion 520. When the slider portion 520 slides to the two ends of the slide rail portion 510, the limiting portions 530 can abut the slider portion 520 to limit the slider portion 520 from continuing to slide, thereby preventing the slider portion 520 from separating from the slide rail portion 510, which is beneficial to improving the safety of the device.

[0072] In some examples, the rail portion 510 , the slider portion 520 , and the stop portion 530 are all made of thermoplastic resin.

[0073] In the above technical solution, the rail portion 510, the slider portion 520 and the limit portion 530 are all made of thermoplastic resin, for example, polyethylene, to improve the corrosion resistance of the rail portion 510, the slider portion 520 and the limit portion 530. Long-term use of the rail portion 510, the slider portion 520 and the limit portion 530 will inevitably bring them into contact with liquid chemical reagents. Improving the corrosion resistance of the rail portion 510, the slider portion 520 and the limit portion 530 can avoid the failure of the rail portion 510, the slider portion 520 and the limit portion 530 due to chemical corrosion, which is beneficial to improving the service life of the device.

[0074] In the present disclosure, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0075] In the description of the present disclosure, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the present disclosure.

[0076] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0077] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A chemical reagent sampling device, characterized in that: include: A liquid storage container, used for containing the liquid to be sampled; A liquid guiding tube, formed with a first pipe opening and a second pipe opening, wherein the first pipe opening is connected to the liquid storage container; A collecting container connected to the second pipe opening; The pressure regulating component is arranged in the liquid storage container and is used for regulating the internal air pressure of the liquid storage container so that the liquid to be sampled in the liquid storage container flows to the collection container through the liquid guide tube.

2. The chemical reagent sampling device according to claim 1, characterized in that: The voltage regulating assembly comprises: A pressure regulating part, the pressure regulating part is made of elastic material, and is provided with an air storage space, and the pressure regulating part has a first working state and a second working state; An air guide portion, one end of which is connected to the air storage space, and the other end of which is connected to the interior of the liquid storage container; Wherein, a first volume of the gas storage space when the pressure regulating part is in the first working state is greater than a second volume of the gas storage space when the pressure regulating part is in the second working state.

3. The chemical reagent sampling device according to claim 2, characterized in that: The voltage regulating assembly also includes: The transition portion forms a transition space, and the air storage space is connected to the air guide portion through the transition space.

4. The chemical reagent sampling device according to claim 2, characterized in that: The liquid storage container comprises: A container body, used to contain the liquid to be sampled, wherein the container body is formed with a container mouth; A sealing plug, disposed on the container body, used to cover or open the container opening, the sealing plug being provided with a first through hole and a second through hole; Wherein, the air guide portion is disposed through the first through hole, and the liquid guide tube is disposed through the second through hole.

5. The chemical reagent sampling device according to claim 4, characterized in that: The height of the collecting container is higher than the height of the container mouth.

6. The chemical reagent sampling device according to claim 5, characterized in that: The second pipe opening is located inside the collecting container.

7. The chemical reagent sampling device according to claim 6, characterized in that: The collecting container is arranged obliquely relative to the liquid storage container, and the second pipe opening is arranged horizontally.

8. The chemical reagent sampling device according to any one of claims 1 to 7, characterized in that: The collecting container is movably connected to the liquid guiding tube so that the inner bottom wall of the collecting container can be close to or away from the second pipe opening.

9. The chemical reagent sampling device according to claim 8, characterized in that: Also includes: A slide rail portion connected to the collection container, wherein the slide rail is arranged along the inner bottom wall of the collection container to the collection port of the collection container; A slider portion connected to the liquid guiding tube, and the slider portion is slidably disposed on the slide rail portion; The limiting parts are detachably arranged at the two ends of the slide rail part and are used for abutting against the sliding block part.

10. The chemical reagent sampling device according to claim 9, characterized in that: The slide rail portion, the slider portion and the limiting portion are all made of thermoplastic resin.

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