Sampling box and sampling system

Abstract

The utility model provides a sampling box and a sampling system. The sampling box comprises a box body, a liquid supply pipe and a partition plate, the liquid supply pipe is arranged in the box body and provided with a valve used for supplying liquid. The partition plate is arranged in the box body and divides the interior of the box body into a first cavity located on the upper portion and a second cavity located on the lower portion. The valve is located in the first cavity, and a liquid outlet of the liquid supply pipe is located in the second cavity. The first cavity is provided with a first opening, the second cavity is provided with a second opening, and the box body is connected with a first door plate capable of covering the first opening and a second door plate capable of covering the second opening. When sampling personnel adopt the sampling device for sampling, the container can be placed below the liquid outlet of the liquid supply pipe in the second chamber, then the second door plate is closed, and splashed liquid medicine can be blocked in the second chamber by the partition plate and the second door plate, so that the influence of the liquid medicine on the sampling personnel is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of experimental sample sampling equipment, and in particular to a sampling box and a sampling system. Background Art

[0002] When using the existing sampling device for sampling, the sampler places the sampling container under the liquid outlet of the liquid supply pipe and directly opens the valve to sample. There is a problem of liquid splashing onto the sampler, and for some volatile substances, their volatilization may cause damage to the health of the sampler. Utility Model Content

[0003] The purpose of the present application is to provide a sampling box and a sampling system to reduce the impact of splashing liquid on sampling personnel during the sampling process.

[0004] The embodiment of the present application is implemented as follows:

[0005] In a first aspect, an embodiment of the present application provides a sampling box, comprising a box body, a liquid supply tube and a partition. The liquid supply tube is arranged in the box body, and the liquid supply tube is provided with a valve for liquid supply. The partition is arranged in the box body, and the partition divides the interior of the box body into a first chamber located at the top and a second chamber located at the bottom; the valve is located in the first chamber, and the liquid outlet of the liquid supply tube is located in the second chamber. The first chamber has a first opening, and the second chamber has a second opening. The box body is connected to a first door panel that can cover the first opening, and a second door panel that can cover the second opening.

[0006] In the above technical solution, the valve of the liquid supply pipe and the liquid outlet of the liquid supply pipe are respectively arranged in the first chamber and the second chamber, and the first chamber and the second chamber are separated by a partition. When the sampling personnel operate the valve, it is difficult for the hands of the sampling personnel to be contaminated by the liquid medicine splashed from the liquid outlet. When the sampling personnel use the above sampling device to take samples, they can place the container under the liquid outlet of the liquid supply pipe in the second chamber, and then close the second door plate. The splashed liquid medicine can be blocked by the partition plate and the second door plate in the second chamber, reducing the impact of the liquid medicine on the sampling personnel.

[0007] In combination with the first aspect, in some optional embodiments, the second door panel is connected to a liquid baffle plate, the liquid baffle plate is tilted, and a side of the liquid baffle plate away from the second door panel is lower than a side connected to the second door panel.

[0008] In the above technical solution, the medicine splashed onto the second door panel will flow onto the liquid baffle plate during the downward flow. Since the liquid baffle plate is at the bottom on the side away from the second door panel, the medicine will then flow along the liquid baffle plate in the direction away from the second door panel and drip onto the bottom of the second chamber, thereby reducing the medicine flowing to the lower edge of the second door panel, and further reducing the medicine leaking from the lower edge of the second door panel to the outside.

[0009] In combination with the first aspect, in some optional embodiments, a placement plate for placing containers is provided in the second chamber, and the placement plate is provided with a leakage hole, and the leakage hole runs through the placement plate.

[0010] In the above technical solution, by setting a leakage hole on the placement plate used to prevent the container, the liquid falling on the placement plate can flow down through the leakage hole, which effectively reduces the accumulation of liquid medicine on the placement plate, and thus prevents a large amount of liquid medicine from adhering to the container set on the placement plate, thereby reducing the risk of sampling personnel contacting the liquid medicine.

[0011] In combination with the first aspect, in some optional embodiments, the bottom surface of the second chamber is configured as a conical surface, and a drainage hole is provided at the apex of the conical surface.

[0012] In the above technical solution, since the bottom surface of the second chamber is a cone, the liquid medicine falling through the leakage hole of the storage plate can gather quickly on the bottom surface of the second chamber so as to be discharged in time through the drainage hole to reduce the volatilization of the liquid medicine and its inhalation by the operator.

[0013] In combination with the first aspect, in some optional embodiments, a gap exists between a side of the partition away from the first opening and an inner wall of the box body.

[0014] In the above technical solution, the drug liquid leaked from the valve can flow into the second chamber through the gap, thereby preventing the drug liquid from accumulating in the first chamber.

[0015] In combination with the first aspect, in some optional embodiments, the box body is provided with a through window, the window is connected to the second chamber; and the window is covered with a light-transmitting plate.

[0016] In the above technical solution, by providing a window connected to the second chamber and covering the window with a light-transmitting plate, the brightness of the second chamber can be improved, making it easier for the sampling personnel to observe the liquid level in the container.

[0017] In combination with the first aspect, in some optional embodiments, both the first door panel and the second door panel are transparent structural members.

[0018] In the above technical solution, it is convenient for sampling personnel to observe the conditions in the first chamber and the second chamber.

[0019] In combination with the first aspect, in some optional embodiments, the partition is provided with a through hole, the liquid supply pipe passes through the through hole, and the through hole is provided with a fixing member, and the fixing member is used to fix the liquid supply pipe.

[0020] In the above technical solution, by providing a fixing member, the shaking of the liquid supply pipe during the liquid discharge process can be reduced, thereby reducing liquid splashing.

[0021] In combination with the first aspect, in some optional embodiments, the box body is further connected to an exhaust pipe, and the lumen of the exhaust pipe is connected to the second chamber.

[0022] In the above technical solution, the gas in the second chamber can be extracted through the exhaust pipe to reduce the leakage of the liquid medicine in the second chamber after volatilization, thereby reducing the impact on the environment.

[0023] In a second aspect, an embodiment of the present application provides a sampling system, comprising a liquid medicine supply device and the sampling box provided in the first aspect, wherein the liquid medicine supply device is connected to the liquid supply tube through a pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of a sampling box provided in an embodiment of the present application at a first viewing angle;

[0026] Figure 2 A schematic diagram of a sampling box provided in an embodiment of the present application at a second viewing angle;

[0027] Figure 3 A schematic cross-sectional view of a sampling box provided in an embodiment of the present application;

[0028] Figure 4 For the embodiment of this application Figure 3 Schematic diagram of the middle A;

[0029] Figure 5 For the embodiment of this application Figure 3 Schematic diagram of the output in B;

[0030] Figure 6 for Figure 2 The schematic diagram of the sampling box after the first door panel and the second door panel are removed;

[0031] Figure 7A schematic diagram of a box body provided in an embodiment of the present application.

[0032] Icons: 100-box body; 111-first chamber; 112-second chamber; 121-front side panel; 1211-first through hole; 1212-second through hole; 122-rear side panel; 123-left side panel; 124-right side panel; 125-top panel; 126-bottom panel; 1261-drain hole; 200-liquid supply pipe; 210-valve; 300-partition; 410-first door panel; 420-second door panel; 430-liquid baffle; 500-storage panel; 510-leakage hole; 600-light-transmitting panel; 700-exhaust pipe. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the description of this application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] An embodiment of the present application provides a sampling system including a liquid medicine supply device and a sampling box. The sampling box is connected to the liquid medicine supply device through a pipeline to achieve sampling through the sampling box.

[0040] like Figures 1 to 6 As shown, the sampling box includes a box body 100, a liquid supply pipe 200 and a partition 300, and the box body 100 is connected with a first door plate 410 and a second door plate 420. The liquid supply pipe 200 is arranged in the box body 100, and is connected to the pipeline connecting the liquid supply device and the sampling box. A valve 210 for liquid supply is also arranged on the liquid supply pipe 200. It is not difficult to understand that the liquid supply pipe 200 is connected with the liquid supply device. After the valve 210 of the liquid supply pipe 200 is opened, the liquid in the liquid supply device enters the liquid supply pipe 200 and flows out from the liquid outlet of the liquid supply pipe 200.

[0041] The partition 300 is disposed in the box body 100 and divides the interior of the box body 100 into a first chamber 111 located at the top and a second chamber 112 located at the bottom. The valve 210 on the liquid supply pipe 200 is located in the first chamber 111, and the liquid outlet at the lower end of the liquid supply pipe 200 is located in the second chamber 112. Figure 3 As shown, the partition 300 is a flat plate-shaped structural member, and the space in the box body 100 above the upper surface of the partition 300 is the first chamber 111; the space in the box body 100 below the first partition 300 is the second chamber 112.

[0042] Furthermore, the first chamber 111 has a first opening, and the second chamber 112 has a second opening. Figure 3As shown, the bottom surface of the first chamber 111 is the upper surface of the partition 300, and the other walls of the first chamber 111 are the inner surfaces of the box body 100. The sampling personnel put their hands into the first chamber 111 through the first opening to open and close the valve 210; the top surface of the second chamber 112 is the lower surface of the partition 300, and the other walls of the second chamber 112 are the inner surfaces of the box body 100. The sampling personnel place the container below the liquid outlet of the liquid supply tube 200 through the second opening for sampling.

[0043] The first door panel 410 can cover the first opening, and the second door panel 420 can cover the second opening. In some embodiments, one side of the first door panel 410 and the second door panel 420 are both rotatably connected to the box body 100, so as to facilitate opening or closing the first door panel 410 and the second door panel 420. Figure 2 In the illustrated embodiment, the first door panel 410 and the second door panel 420 are both rotatably connected to the box body 100 through one side extending in the vertical direction. In other embodiments, the hinges for hinge-connecting the first door panel 410 and the second door panel 420 to the box body 100 may also be arranged at other positions of the first door panel 410 and the second door panel 420. Furthermore, the first door panel 410 and the second door panel 420 may also be rotatably connected to the box body 100 by using a pivot connection or other connection methods. Furthermore, door locks may be respectively arranged on the first door panel 410 and the second door panel 420 to prevent the first door panel 410 and the second door panel 420 from being opened at will.

[0044] The partition plate 300 and the second door plate 420 can block the liquid splashing from the outlet of the liquid supply tube 200 in the second chamber 112, thereby reducing the impact of the liquid splashing from the outlet on the sampling personnel. The first door plate 410 is provided to cover the first opening of the first chamber 111, so that the volatilized gas in the first chamber 111 entering the external environment and the impact on the sampling personnel can be reduced.

[0045] Furthermore, the first door panel 410 and the second door panel 420 are both transparent structural members, such as resin structural members or glass structural members, or transparent structural members made of other materials. The materials of the first door panel 410 and the second door panel 420 can be the same or different.

[0046] In some embodiments, Figure 3 and Figure 5As shown, the second door plate 420 is also connected to a liquid baffle plate 430, and the liquid baffle plate 430 is tilted, and the side of the liquid baffle plate 430 away from the second door plate 420 is lower than the side connected to the second door plate 420. That is, when the second door plate 420 is closed, the liquid baffle plate 430 is located in the second chamber 112; the side of the liquid baffle plate 430 away from the second door plate 420 is at a lower position, so that the liquid on the liquid baffle plate 430 can move to the side away from the second door plate 420. Therefore, when the second door plate 420 is closed, the liquid splashed onto the second door plate 420 during the sampling process will flow along the surface of the liquid baffle plate 430 when it flows down to the position of the liquid baffle plate 430, and finally fall from the side of the liquid baffle plate 430 away from the second door plate 420. By setting a liquid baffle 430 on the side surface of the second door plate 420 facing the second chamber 112, the liquid medicine flowing to the lower edge of the second door plate 420 is greatly reduced, thereby reducing the liquid medicine seeping out of the gap formed between the lower edge of the second door plate 420 and the box body 100, thereby reducing the leakage of the liquid medicine.

[0047] In some embodiments, the liquid baffle 430 is a strip-shaped plate-shaped structural member, and the length of the liquid baffle 430 is adapted to the size of the second door panel 420, that is, one end of the liquid baffle 430 in the horizontal direction is close to one side of the second door panel 420 in the horizontal direction, and the other end of the liquid baffle 430 in the horizontal direction is close to the other side of the second door panel 420 in the horizontal direction, so that the liquid sliding down from more positions on the second door panel 420 can flow to the liquid baffle 430. The liquid baffle 430 is preferably arranged horizontally, so that the main movement direction of the liquid on the liquid baffle 430 without the action of external force is the vertical direction and the direction away from the second door panel 420, and the movement in the horizontal direction is less. The liquid baffle 430 is arranged horizontally, which can also be understood as the edge of the liquid baffle 430 used to connect the second door panel 420 is arranged horizontally.

[0048] The liquid baffle plate 430 is preferably disposed at a position close to the lower edge of the second door plate 420. It should be readily understood by those skilled in the art that the lower the liquid baffle plate 430 is disposed, the less liquid will seep out of the gap formed at the lower edge of the second door. In actual implementation, the lowest point of the liquid baffle plate 430 is preferably such that the liquid baffle plate 430 does not interfere with the box body 100 during the opening of the second door plate 420.

[0049] Furthermore, in some embodiments, the lower edge of the second opening is higher than the bottom surface of the second chamber 112, that is, the side of the second chamber 112 on which the second opening is provided is also provided with a vertically extending wall. When the second door panel 420 is closed, even if there is medicine liquid flowing down along the inner wall of the second door panel 420 to the gap formed between the lower edge of the second door panel 420 and the box body 100, the medicine liquid will continue to flow downward to the wall of the second chamber 112 (that is, the inner wall of the box body 100) under the action of gravity, and then continue to flow downward to the bottom surface of the second chamber 112, and it is difficult to seep out of the gap to the outside of the second chamber 112, thereby reducing the impact of the medicine liquid on the external environment.

[0050] That is Figure 3 , Figure 5 and Figure 7 In the embodiment shown, the box body 100 includes a left side plate 123 located on the left, a right side plate 124 located on the right, a top plate 125 located on the top, and a bottom plate 126 located on the bottom. The lower surface of the top plate 125 is the top surface of the first chamber 111, and the upper surface of the bottom plate 126 is the bottom surface of the second chamber 112. The box body 100 also has a rear side plate 122 located on the rear side and a front side plate 121 located on the front side. The front side plate 121 has a first through hole 1211 and a second through hole 1212 arranged up and down. The first opening of the first chamber 111 is the first through hole 1211 on the front side plate 121, and the second opening of the second chamber 112 is the second through hole 1212 on the front side plate 121. There is a certain distance between the lower edge of the second through hole 1212 and the bottom plate 126, so that the side of the second chamber 112 provided with the second opening is also provided with a vertically extending wall. The first door panel 410 and the second door panel 420 are both connected to the front side panel 121 .

[0051] In some embodiments, a placement plate 500 for placing containers is also provided in the second chamber 112. It is not difficult to understand that the placement plate 500 is located below the liquid outlet of the liquid supply tube 200. Further, the placement plate 500 is also provided with a leakage hole 510, and the leakage hole 510 is a through hole, that is, the leakage hole 510 runs through the placement plate 500, so that the liquid splashed on the placement plate 500 can fall from the leakage hole 510 without accumulating on the placement plate 500. The shape of the leakage hole 510 can be a circular hole, a rectangular hole, a strip hole, or a hole structure of other shapes; the leakage holes 510 can be distributed in a matrix on the placement plate 500, or can be distributed according to other rules or irregularly; the leakage holes 510 can be distributed in the entire area of ​​the placement plate 500, or can be distributed only in a small area of ​​the placement plate 500.

[0052] Furthermore, the bottom surface of the second chamber 112 is a conical surface, and a drainage hole 1261 is provided at the apex of the conical surface. It is not difficult to understand that in the bottom surface of the second chamber 112, the apex of the conical surface is at a lower position, that is, the bottom surface of the second chamber 112 protrudes downward, so that the liquid medicine on the bottom surface of the second chamber 112 converges to the drainage port, so as to discharge the liquid medicine as quickly as possible and reduce the volatilization amount of the liquid medicine. Figure 1 , Figure 5 and Figure 7 In the embodiment shown, the bottom plate 126 is a plate-like structure protruding downward and a through hole is opened at the lowest point of the bottom plate 126 to form a drainage hole 1261. The bottom plate 126 is also connected to a pipe docked with the drainage hole 1261 to recover the drug solution.

[0053] In some embodiments, there is a gap between the side of the partition 300 away from the first opening and the inner wall of the box body 100, such as Figure 4 In the embodiment shown, there is a gap between the partition 300 and the rear side plate 122 of the box body 100. The gap allows the first chamber 111 to communicate with the second chamber 112, so that the liquid medicine leaking from the valve 210 in the first chamber 111 can drip from the gap to the second chamber 112, and then be discharged from the drainage hole 1261 on the bottom surface of the second chamber 112. In other embodiments, the gap between the partition 300 and the box body 100 can also be located between the left side plate 123 of the box body 100 and the partition 300, or between the right side plate 124 and the partition 300. In some other embodiments, there may be no gap between the partition 300 and the box body 100.

[0054] Further, in an embodiment where there is no gap between the partition 300 and the box body 100, a through hole is provided on the partition 300, and the liquid supply pipe 200 passes through the through hole, so that the valve 210 of the liquid supply pipe 200 is located in the first chamber 111, and the liquid outlet is located in the second chamber 112. Of course, in an embodiment where there is a gap between the partition 300 and the box body 100, the liquid supply pipe 200 may also pass through the partition 300. Further, in an embodiment where the liquid supply pipe 200 passes through the through hole of the partition 300, a fixing member may be provided in the through hole of the partition 300 to fix the liquid supply pipe 200, reduce the shaking of the liquid supply pipe 200, and further reduce the phenomenon of liquid splashing at the liquid outlet.

[0055] In some embodiments, the box body 100 is also connected to an exhaust pipe 700, and the tube cavity of the exhaust pipe 700 is connected to the second chamber 112 to provide a channel for extracting the volatilized liquid in the second chamber 112, thereby reducing the impact on the sampling personnel. Further, the exhaust pipe 700 can be connected to the second chamber 112 from the rear side plate 122 of the box body 100, or it can be connected to the second chamber 112 from the left side plate 123 or the right side plate 124 of the box body 100. Further, when there is a gap between the partition 300 and the box body 100 to connect the first chamber 111 with the second chamber 112, the exhaust pipe 700 can also clean the volatilized liquid in the first chamber 111. Accordingly, in some embodiments of the sampling system, it also includes an exhaust device connected to the exhaust pipe 700, and the gas in the second chamber 112 is extracted through the exhaust device and the exhaust pipe 700.

[0056] In some embodiments, the box body 100 is also provided with a through window, and the window is connected to the second chamber 112. A light-transmitting plate 600 is covered on the window. It is not difficult to understand that the light-transmitting plate 600 is a transparent plate-shaped structural member. By setting the light-transmitting plate 600, light can enter the second chamber 112, increase the brightness in the second chamber 112, and facilitate the sampling personnel to observe into the second chamber 112. Among them, the window for setting the light-transmitting plate 600 can not only connect the second chamber 112, but also connect the first chamber 111 at the same time; that is, the brightness in the first chamber 111 and the second chamber 112 can be increased at the same time. In some embodiments, the window can be a through hole set on the left side plate 123 of the box body 100, and accordingly, the light-transmitting plate 600 is connected to the left side plate 123; in other embodiments, the window can also be a through hole set on the right side plate 124 of the box body 100, and accordingly, the light-transmitting plate 600 is connected to the right side plate 124. In this embodiment, the light-transmitting plate 600 can also be made of resin material, glass material, or other transparent materials.

[0057] use Figure 2 The sampling operation process of the sampling box shown includes: opening the first door plate 410 and the second door plate 420, placing the container on the storage plate 500 and aligning it with the liquid outlet of the liquid supply tube 200, and then closing the second door plate 420. Turning on the air extraction device, and then opening the valve 210 on the liquid supply tube 200 in the first chamber 111 to allow the liquid to flow into the container from the liquid outlet.

[0058] It is not difficult to understand from the description of the sampling operation process above that during the sampling process, the splashing liquid medicine is blocked by the partition 300 and the second door panel 420 in the second chamber 112, and a vacuum device is also provided to timely extract the gas generated by the volatilization of the liquid medicine, which can effectively reduce the impact on the sampling personnel during the sampling process.

[0059] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sampling box, characterized in that: include: Box body, A liquid supply pipe, the liquid supply pipe is arranged in the box body, and the liquid supply pipe is provided with a valve for supplying liquid; A partition, the partition is arranged in the box body, the partition divides the interior of the box body into a first chamber located at the top and a second chamber located at the bottom; the valve is located in the first chamber, and the liquid outlet of the liquid supply pipe is located in the second chamber; The first chamber has a first opening, the second chamber has a second opening, and the box body is connected to a first door panel that can cover the first opening, and a second door panel that can cover the second opening.

2. The sampling box according to claim 1, characterized in that: The second door panel is connected to a liquid baffle plate, the liquid baffle plate is tilted, and a side of the liquid baffle plate away from the second door panel is lower than a side connected to the second door panel.

3. The sampling box according to claim 1, characterized in that: The second chamber is provided with a placement plate for placing containers, and the placement plate is provided with a liquid leakage hole, and the liquid leakage hole passes through the placement plate.

4. The sampling box according to claim 3, characterized in that: The bottom surface of the second chamber is set as a conical surface, and a drainage hole is arranged at the vertex position of the conical surface.

5. The sampling box according to any one of claims 1 to 4, characterized in that: A gap is formed between a side of the partition away from the first opening and an inner wall of the box body.

6. The sampling box according to any one of claims 1 to 4, characterized in that: The box body is provided with a through window, the window is connected to the second chamber; the window is covered with a light-transmitting plate.

7. The sampling box according to claim 6, characterized in that: The first door panel and the second door panel are both transparent structural members.

8. The sampling box according to any one of claims 1 to 4, characterized in that: The partition is provided with a through hole, and the liquid supply pipe passes through the through hole. The through hole is provided with a fixing piece, and the fixing piece is used to fix and pass through the liquid supply pipe.

9. The sampling box according to any one of claims 1 to 4, characterized in that: The box body is also connected to an exhaust pipe, and the tube cavity of the exhaust pipe is communicated with the second chamber.

10. A sampling system, characterized in that: It comprises a liquid medicine supply device and a sampling box as described in any one of claims 1 to 9, wherein the liquid medicine supply device is connected to the liquid supply tube through a pipeline.

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