Portable atmosphere sampler based on liquid absorption method

Abstract

The invention belongs to the technical field of gas samplers, particularly relates to a portable atmosphere sampler based on a liquid respiration method, and aims to solve the problems that an atmosphere sampler is not easy to carry and is difficult to disassemble and assemble. The device comprises: a detachable housing; the shell comprises a front panel, a right panel, a rear panel, a left panel, a bottom plate and a top plate; the front panel is connected with the left panel and the right panel in an inserted mode. The rear panel is connected with the left panel and the right panel in an inserted mode. The bottom plate is connected with the left panel and the right panel in an inserted mode. The top plate is connected with the left panel and the right panel in an inserted mode. The invention provides a possible thought for providing an external power supply with rapid field sampling and low cost. Disassembly and assembly are achieved through the design of the clamping grooves, extra tools are not needed, and convenience is provided for field maintenance.

Description

Technical Field

[0001] The invention belongs to the technical field of gas samplers, and in particular relates to a portable atmospheric sampler based on a liquid absorption method. Background Art

[0002] At present, atmospheric sampling usually includes membrane capture method or liquid absorption method. Among them, the atmospheric fluorine sampling based on EJ192.1-1982 adopts liquid absorption method. Therefore, various aspects of the sampler can indirectly affect the formulation of environmental testing plan.

[0003] Existing atmospheric samplers have the following disadvantages: they are large in size, usually exceeding 10L; they are heavy, using metal materials such as iron and aluminum alloy as the shell, which are prone to fatigue when carried in the field; when a fault occurs, they usually need to be disassembled with a screwdriver, and the maintainability is poor; some samplers are usually powered by 220V, and an external power supply is required to ensure operation during field sampling; some samplers use built-in batteries, which usually last for about 2 hours, and it is impossible to quickly replace the battery to meet long-term sampling needs. Summary of the invention

[0004] In order to solve the above problems in the prior art, namely, the problem that the atmospheric sampler is not easy to carry and difficult to assemble and disassemble, the present invention provides a portable atmospheric sampler based on the liquid absorption method.

[0005] The present application provides a portable atmospheric sampler based on the liquid absorption method, which adopts the following technical solution:

[0006] A portable atmospheric sampler based on liquid respiration method, comprising a detachable housing;

[0007] The housing comprises a front panel, a right panel, a rear panel, a left panel, a bottom panel and a top panel;

[0008] The front panel is plugged with the left panel and the right panel; the rear panel is plugged with the left panel and the right panel; the bottom panel is plugged with the left panel and the right panel; and the top panel is plugged with the left panel and the right panel.

[0009] Preferably, a front left tenon and a front right tenon are respectively provided on both sides of the front panel;

[0010] The right panel has a right front card slot, a right bottom card slot, a right rear card slot and a right top card slot respectively formed at the edge of the panel surface;

[0011] The rear panel is provided with a rear left tenon and a rear right tenon on both sides of the panel surface;

[0012] The left panel is respectively provided with a left front card slot, a left bottom card slot, a left rear card slot and a left top card slot;

[0013] The front left tenon on the front panel is inserted into the left front slot of the left panel, and the front right tenon is inserted into the right front slot of the right panel; the bottom left tenon on the bottom panel is inserted into the left bottom slot of the left panel, and the bottom right tenon is inserted into the right bottom slot of the right panel; the rear left tenon on the rear panel is inserted into the left rear slot of the left panel, and the rear right tenon is inserted into the right rear slot of the right panel; the top left tenon on the top panel is inserted into the left top slot on the left panel, and the top right tenon is inserted into the right top slot of the right panel.

[0014] By adopting the above technical solution, the front left tenon on the front panel is inserted into the left front slot of the left panel, and the front right tenon is inserted into the right front slot of the right panel, so that the front panel is connected with the left panel and the right panel; the bottom left tenon on the bottom panel is inserted into the left bottom slot of the left panel, and the bottom right tenon is inserted into the right bottom slot of the right panel, so that the bottom panel is connected with the left panel and the right panel; the rear left tenon on the rear panel is inserted into the left rear slot of the left panel, and the rear right tenon is inserted into the right rear slot of the right panel, so that the rear panel is connected with the left panel and the right panel; the top left tenon on the top panel is inserted into the left top slot on the left panel, and the top right tenon is inserted into the right top slot of the right panel, so that the top panel is connected with the left panel and the right panel. The above completes the assembly of the hardware components.

[0015] This application provides a possible way to provide external power for field sampling quickly and at low cost. This application realizes disassembly and assembly through a card slot design, without the need for additional tools, providing convenience for field maintenance.

[0016] Preferably, the rear bottom plate, rear side plates and rear back plate are fixedly connected to the rear panel, the rear back plate is parallel to the rear panel, and the rear bottom plate, rear side plates, rear panel and rear back plate form a cylindrical installation cavity.

[0017] By adopting the above technical solution, the external power supply can be placed in the installation cavity, which facilitates the arrangement of the external power supply.

[0018] Preferably, deformation grooves are provided on the rear panel and the back panel.

[0019] By adopting the above technical solution, when the external power supply is large, the external power supply can be inserted into the installation cavity. The external power supply squeezes the rear bottom plate, rear side plate, rear panel and back plate that constitute the installation cavity, causing the installation cavity to deform. Under the action of the deformation groove, the deformation of the installation cavity is redundant, thereby facilitating the deformation of the installation cavity, and making it easier for the installation cavity to accommodate a larger external power supply.

[0020] Preferably, a bottom support foot is fixedly connected to the lower side of the rear bottom plate.

[0021] By adopting the above technical solution, the bottom support feet are used to support the installation cavity on the rear panel to prevent the overall weight from being unbalanced and unable to be placed steadily after an external power supply is installed in the installation cavity.

[0022] Preferably, a nut slot is also provided on the surface of the base plate.

[0023] By adopting the above technical solution, a nut of corresponding size is installed in the nut slot, and the nut is used to connect with the tripod, so that the sampler can be conveniently used in conjunction with the tripod.

[0024] Preferably, the bottom plate is provided with two card-connecting slots, the two card-connecting slots are arranged on both sides of the nut slot, and a buckle is installed on the bottom plate;

[0025] The buckle comprises a main body and snap-fit ​​tenons arranged on both sides of the main body, and the snap-fit ​​tenons are plugged into and matched with snap-fit ​​slots.

[0026] By adopting the above technical solution, the buckle is buckled on the nut to restrict the nut and prevent the nut from falling out upward from the nut slot when the nut is connected to the tripod, thereby facilitating the stable connection between the sampler and the tripod.

[0027] Preferably, a limiting hole is provided through the top plate.

[0028] By adopting the above technical solution, an air pipe is passed through the limiting hole, and the air pipe is used to connect the air outlet of the vacuum pump with the air inlet of the flow meter. Then the air inlet of the vacuum pump is connected to the air pipe, and the air pipe passes through the limiting hole on the top plate to achieve limiting.

[0029] Preferably, a hollow hole is also provided on the top plate.

[0030] By adopting the above technical solution, the hollow holes are used to reduce the weight of the top plate.

[0031] Preferably, a front groove is formed on the surface of the front panel; and a right groove is formed on the surface of the right panel.

[0032] By adopting the above technical solution, the groove is used to reduce the weight of the panel.

[0033] Beneficial effects of the present invention:

[0034] (1) This structure has a lot of hollow designs to play the following roles: first, the overall weight of the instrument is reduced; second, it can be used as a card slot to achieve functional expansion; third, the external power supply can be quickly replaced to extend the sampling time in the field without power supply conditions.

[0035] (2) This application provides a possible idea for providing external power supply quickly and at low cost for field sampling.

[0036] (3) This application achieves disassembly and assembly through a card slot design, without the need for additional tools, providing convenience for field maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0038] Figure 1 is a schematic diagram of a portable air sampler based on the liquid absorption method in this embodiment;

[0039] Figure 2 This is a schematic diagram of an explosion of a portable atmospheric sampler based on a liquid absorption method in this embodiment;

[0040] Figure 3 is a schematic diagram of the front panel in this embodiment;

[0041] Figure 4 is a schematic diagram of the back side of the front panel in this embodiment;

[0042] Figure 5 is a schematic diagram of the right panel in this embodiment;

[0043] Figure 6 is a schematic diagram of the rear panel in this embodiment;

[0044] Figure 7 is a schematic diagram of the left panel in this embodiment;

[0045] Figure 8 is a schematic diagram of the back side of the left panel in this embodiment;

[0046] Fig. 9 Schematic diagram of the bottom plate in this embodiment;

[0047] Fig.10 is a schematic diagram of the buckle in this embodiment;

[0048] Fig.11 Schematic diagram of the top plate in this embodiment.

[0049] Description of the reference numerals: 1, housing; 11, front panel; 111, front left tenon; 112, front right tenon; 113, front groove; 12, right panel; 121, right front slot; 122, right bottom slot; 123, right rear slot; 124, right top slot; 125, right groove; 13, rear panel; 131, rear left tenon; 132, rear right tenon; 133, rear bottom panel; 134, rear side panel; 135, rear back panel; 136, mounting cavity; 137, deformation groove; 138, bottom support foot; 14, left panel; 141, left front slot; 142, left bottom slot; 1 43. Left rear slot; 144. Left top slot; 145. Relay slot; 146. Flow meter slot; 147. Flow meter limit baffle; 15. Bottom plate; 151. Bottom left tenon; 152. Bottom right tenon; 153. Mounting seat; 154. Nut slot; 155. Snap-on slot; 16. Top plate; 161. Top left tenon; 162. Top right tenon; 163. USB slot; 164. Layout slot; 165. Hollow hole; 166. Limit hole; 17. Buckle; 171. Main body; 172. Snap-on tenon; 2. Absorption bottle; 3. Flow meter; 4. Relay. DETAILED DESCRIPTION

[0050] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the relevant invention are shown in the accompanying drawings.

[0051] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0052] The present invention provides a portable atmospheric sampler based on liquid absorption method, referring to Figure 1 The portable air sampler based on the liquid absorption method comprises a shell 1 and an absorption bottle 2, a flow meter 3 and a relay 4 installed on the shell 1.

[0053] Reference Figure 2 The housing 1 is a detachable structure, including a front panel 11, a right panel 12, a rear panel 13, a left panel 14, a bottom panel 15 and a top panel 16.

[0054] Reference Figure 3 , Figure 4 The front panel 11 is provided with a front left tenon 111 and a front right tenon 112 on both sides, and the front panel 11 is connected with the left panel 14 and the right panel 12 through the front left tenon 111 and the front right tenon 112. A front groove 113 is provided on the plate surface of the front panel 11, and the front groove 113 is used to reduce the weight of the front panel 11.

[0055] Reference Figure 5 The right panel 12 has a right front card slot 121, a right bottom card slot 122, a right rear card slot 123 and a right top card slot 124 respectively formed on the edge of the panel surface. The right panel 12 is connected to the front panel 11, the bottom panel 15, the rear panel 13 and the top panel 16 through the right front card slot 121, the right bottom card slot 122, the right rear card slot 123 and the right top card slot 124. The front right card tenon 112 on the front panel 11 is inserted into the right front card slot 121 on the right panel 12, so that the front panel 11 and the right panel 12 are connected together. A right groove 125 is formed on the panel surface of the right panel 12, and the right groove 125 is used to reduce the weight of the panel.

[0056] Reference Figure 6 The rear panel 13 is provided with a rear left tenon 131 and a rear right tenon 132 on both sides of the panel surface. The rear panel 13 is connected with the left panel 14 and the right panel 12 through the rear left tenon 131 and the rear right tenon 132. The rear right tenon 132 on the rear panel 13 is inserted into the right rear slot 123 on the right panel 12, so that the rear panel 13 and the right panel 12 are connected together. The rear bottom plate 133, the rear side plate 134 and the rear back plate 135 are fixedly connected to the rear panel 13. The rear back plate 135 is parallel to the rear panel 13, and the rear bottom plate 133, the rear side plate 134, the rear panel 13 and the rear back plate 135 form a cylindrical installation cavity 136. The external power supply can be placed in the installation cavity 136, which is convenient for the arrangement of the external power supply. Deformation grooves 137 are provided on the rear panel 13 and the back panel 135. When the external power supply is large, the external power supply can be inserted into the installation cavity 136. The external power supply squeezes the rear bottom plate 133, the rear side plate 134, the rear panel 13 and the back panel 135 that constitute the installation cavity 136, so that the installation cavity 136 is deformed. Under the action of the deformation grooves 137, the deformation of the installation cavity 136 is redundant, thereby facilitating the deformation of the installation cavity 136 and making it easier for the installation cavity 136 to accommodate a larger external power supply.

[0057] In addition, a bottom support foot 138 is fixedly connected to the lower side of the rear bottom plate 133 to support the installation cavity 136 on the rear panel 13 to prevent the installation cavity 136 from being overweight as a whole after an external power supply is installed, causing the sampler to lose balance and be unable to be placed steadily.

[0058] Reference Figure 7 , Figure 8The left panel 14 is provided with a left front card slot 141, a left bottom card slot 142, a left rear card slot 143 and a left top card slot 144, and a handle slot is provided on the upper side of the left top card slot 144. The right panel 12 is connected with the front panel 11, the bottom panel 15, the rear panel 13 and the top panel 16 through the right front card slot 121, the right bottom card slot 122, the right rear card slot 123 and the right top card slot 124. The front left tenon 111 on the front panel 11 is inserted into the left front card slot 141 on the left panel 14, so that the front panel 11 and the left panel 14 are connected together, and the rear left tenon 131 on the rear panel 13 is inserted into the left rear card slot 143 on the left panel 14, so that the rear panel 13 and the left panel 14 are connected together.

[0059] A relay slot 145 and a flow meter slot 146 are also provided on the left panel 14, which are used to connect the relay 4 and the flow meter 3 to the left panel 14, respectively, and are exposed on the left panel 14. A flow meter limit baffle 147 is fixedly connected to the left panel 14, and the flow meter limit baffle 147 surrounds the flow meter slot 146, and is used to limit the installation of the flow meter 3, so that the installation of the flow meter 3 is more stable.

[0060] Reference Fig. 9 The bottom plate 15 is provided with a bottom left latch 151 and a bottom right latch 152 at both side edges, and the bottom plate 15 is connected to the left panel 14 and the right panel 12 through the bottom left latch 151 and the bottom right latch 152. The bottom left latch 151 on the bottom plate 15 is inserted into the left bottom latch groove 142 on the left panel 14, so that the bottom plate 15 and the left panel 14 are connected together, and the bottom right latch 152 on the bottom plate 15 is inserted into the right bottom latch groove 122 on the right panel 12, so that the bottom plate 15 and the right panel 12 are connected together.

[0061] A mounting seat 153 is fixedly connected to the surface of the base plate 15 , and a groove is formed on the mounting seat 153 . The vacuum pump is connected to the mounting seat 153 , and the lower side of the vacuum pump is embedded in the groove formed on the mounting seat 153 , so that the vacuum pump can be firmly mounted on the base plate 15 .

[0062] A nut slot 154 is also provided on the surface of the bottom plate 15. A nut of corresponding size is installed in the nut slot 154. The nut is used to connect with the tripod, so that the sampler can be conveniently used with the tripod. Two card slots 155 are provided on the bottom plate 15. The two card slots 155 are arranged on both sides of the nut slot 154. A buckle 17 is installed on the bottom plate 15. The buckle 17 is buckled on the nut to limit the nut and prevent the nut from escaping upward from the nut slot 154 when the nut is connected to the tripod, thereby facilitating the stable connection between the sampler and the tripod.

[0063] Reference Fig.10The buckle 17 includes a main body 171 and a snap-fit ​​tenon 172 disposed on both sides of the main body 171 , and the snap-fit ​​tenon 172 is plugged into and matched with the snap-fit ​​slot 155 .

[0064] Reference Fig.11 The top left tenon 161 and the top right tenon 162 are provided at the two side edges of the top plate 16, and the top plate 16 is clamped together with the left panel 14 and the right panel 12 through the rear top left tenon 161 and the top right tenon 162. The top left tenon 161 on the top plate 16 is inserted into the left top clamping groove 144 on the left panel 14, so that the top plate 16 is clamped together with the left panel 14, and the top right tenon 162 on the top plate 16 is inserted into the right top clamping groove 124 on the right panel 12, so that the top plate 16 is clamped together with the right panel 12, and after the top plate 16 is installed, the plate surfaces of the front panel 11 and the rear panel 13 clamp the top plate 16, so that the top plate 16 is firmly and stably installed.

[0065] A USB slot 163 is provided on the top plate 16 , and a USB interface is installed in the USB slot 163 . The USB interface is electrically connected to the sampling pump, the relay 4 , and the flow meter 3 .

[0066] The top plate 16 is provided with an arrangement groove 164, in which the absorption bottle 2 is installed and connected to the top plate 16 via the arrangement groove 164. The shape of the arrangement groove 164 is set according to the shape of the absorption bottle 2, so as to facilitate accommodating the absorption bottle 2.

[0067] The top plate 16 is also provided with a hollow hole 165, and two hollow holes 165 are provided, and the two hollow holes 165 are arranged on both sides of the arrangement groove 164, so as to reduce the weight of the top plate 16. A plurality of limiting holes 166 are provided through the top plate 16, and an air pipe is passed through the limiting holes 166, and the air outlet of the air pump is connected to the air inlet of the flow meter 3 by the air pipe, and then the air inlet of the air pump is connected to the air pipe, and the air pipe passes through the limiting holes 166 on the top plate 16 to achieve limiting.

[0068] The front panel 11 , the right panel 12 , the rear panel 13 , the left panel 14 , the bottom panel 15 and the top panel 16 are all integrally formed structures.

[0069] The absorption bottle 2 is placed in the arrangement groove 164 of the top plate 16. The absorption bottle 2 is a glass container that uses a solution absorption method to collect pollutants in the atmosphere. In order to collect certain pollutants in the atmosphere, a solution of a specific component is filled in the absorption bottle 2. When the gas passes through the absorption liquid, the pollutant to be tested is absorbed. The concentration of the pollutant in the atmosphere can be determined by analysis and measurement. The most important performance indicators of the absorption bottle 2 are its most suitable sampling flow rate, absorption efficiency and resistance drop under the condition of filling a certain amount of absorption liquid. Commonly used absorption bottles 2 have different structural forms such as porous glass plate absorption, bubble absorption, and impact absorption.

[0070] A method for using a portable atmospheric sampler based on liquid respiration in an embodiment of the present application is as follows: first, install the vacuum pump in the mounting seat 153 on the bottom plate 15, and then install a nut of corresponding size in the nut slot 154 for connecting to the tripod; after the nut is embedded, insert the snap-on tenon 172 of the buckle 17 into the snap-on tenon slot 155 to achieve assembly. Use wires to connect the USB interface on the top plate 16 to the sampling pump, relay 4, and flowmeter 3. Use an air pipe to connect the air outlet of the vacuum pump to the air inlet of the flowmeter 3, and then connect the air inlet of the vacuum pump to the air pipe, and the air pipe passes through the limiting hole 166 on the top plate 16 to achieve limiting. Embed the flowmeter 3 in the flowmeter slot 146 located on the left panel 14, and use the flowmeter limiting baffle 147 to achieve limiting; embed the relay 4 in the relay slot 145. At the same time, connect the tenons located at various locations to the slots, and the matching method is as follows:

[0071] Insert the front left tenon 111 on the front panel 11 into the left front slot 141 of the left panel 14, and insert the front right tenon 112 into the right front slot 121 of the right panel 12, so as to connect the front panel 11 with the left panel 14 and the right panel 12 together; insert the bottom left tenon 151 on the bottom plate 15 into the left bottom slot 142 of the left panel 14, and insert the bottom right tenon 152 into the right bottom slot 122 of the right panel 12, so as to connect the bottom plate 15 with the left panel 14 and the right panel 12 together; insert the rear left tenon 131 on the rear panel 13 into the left The left rear slot 143 of the panel 14 and the rear right tenon 132 are inserted into the right rear slot 123 of the right panel 12, so that the rear panel 13 is connected with the left panel 14 and the right panel 12; the top left tenon 161 on the top panel 16 is inserted into the left top slot 144 on the left panel 14, and the top right tenon 162 is inserted into the right top slot 124 of the right panel 12, so that the top panel 16 is connected with the left panel 14 and the right panel 12; after the installation is completed, the front panel 11 and the rear panel 13 clamp the top panel 16 and the bottom panel 15. Above, the assembly of the hardware components is completed.

[0072] Connect the absorption bottle 2 with the absorption liquid to the air pipe passing through the limit hole 166 of the top plate 16, place the absorption bottle 2 in the arrangement groove 164, connect it to the USB interface with a USB cable, and connect the USB connector on the other side to an external power supply or a 5V plug to realize power supply. Set the relay 4 to the timed off mode and set the target duration, and complete the timed sampling work by turning the knob of the flow meter 3 or controlling the gas flow rate. After the sampling is completed, remove the air pipe connected to the absorption bottle 2, take out the absorption bottle 2, and complete the sampling process.

[0073] This structure has a lot of hollow designs to play the following roles: first, the overall weight of the instrument is reduced; second, it can be used as a card slot to achieve functional expansion; third, the external power supply can be quickly replaced to extend the sampling time in the field without power supply. This application provides a possible idea for providing external power for field sampling quickly and at low cost. This application realizes disassembly and assembly through the card slot design, without the need for additional tools, which provides convenience for field maintenance.

[0074] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus / device.

[0075] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A portable atmospheric sampler based on liquid respiration method, characterized in that: It comprises a detachable housing (1); The housing (1) comprises a front panel (11), a right panel (12), a rear panel (13), a left panel (14), a bottom panel (15) and a top panel (16); The front panel (11) is plugged into the left panel (14) and the right panel (12); the rear panel (13) is plugged into the left panel (14) and the right panel (12); the bottom panel (15) is plugged into the left panel (14) and the right panel (12); and the top panel (16) is plugged into the left panel (14) and the right panel (12).

2. A portable air sampler based on liquid respiration method according to claim 1, characterized in that: A front left latch (111) and a front right latch (112) are respectively provided on both sides of the front panel (11); The right panel (12) is provided with a right front card slot (121), a right bottom card slot (122), a right rear card slot (123) and a right top card slot (124) at the edge of the panel surface; The rear panel (13) is provided with a rear left latch (131) and a rear right latch (132) on both sides of the panel surface; The left panel (14) is respectively provided with a left front card slot (141), a left bottom card slot (142), a left rear card slot (143) and a left top card slot (144); The front left latch (111) on the front panel (11) is inserted into the left front latch slot (141) of the left panel (14), and the front right latch (112) is inserted into the right front latch slot (121) of the right panel (12); the bottom left latch (151) on the bottom panel (15) is inserted into the left bottom latch slot (142) of the left panel (14), and the bottom right latch (152) is inserted into the right bottom latch slot (122) of the right panel (12). The rear left latch (131) on the rear panel (13) is inserted into the left rear slot (143) of the left panel (14), and the rear right latch (132) is inserted into the right rear slot (123) of the right panel (12); the top left latch (161) on the top panel (16) is inserted into the left top slot (144) on the left panel (14), and the top right latch (162) is inserted into the right top slot (124) of the right panel (12).

3. A portable air sampler based on liquid respiration method according to claim 1, characterized in that: The rear panel (13) is fixedly connected with a rear bottom plate (133), a rear side plate (134) and a rear back plate (135); the rear back plate (135) is parallel to the rear panel (13), and the rear bottom plate (133), the rear side plate (134), the rear panel (13) and the rear back plate (135) form a cylindrical installation cavity (136).

4. A portable air sampler based on liquid respiration method according to claim 3, characterized in that: The rear panel (13) and the back panel (135) are both provided with deformation grooves (137).

5. A portable air sampler based on liquid respiration method according to claim 3, characterized in that: A bottom support foot (138) is fixedly connected to the lower side of the rear bottom plate (133).

6. A portable air sampler based on liquid respiration method according to claim 1, characterized in that: The bottom plate (15) is also provided with a nut clamping groove (154) on the plate surface.

7. A portable air sampler based on liquid respiration method according to claim 1, characterized in that: The bottom plate (15) is provided with two card-connecting slots (155), the two card-connecting slots (155) are arranged on both sides of the nut card slot (154), and a buckle (17) is installed on the bottom plate (15); The buckle (17) comprises a main body (171) and snap-fit ​​tenons (172) arranged on both sides of the main body (171), and the snap-fit ​​tenons (172) are plug-fitted into the snap-fit ​​slots (155).

8. A portable air sampler based on liquid respiration method according to claim 1, characterized in that: The top plate (16) is provided with a limiting hole (166) extending therethrough.

9. A portable air sampler based on liquid respiration method according to claim 1, characterized in that: The top plate (16) is also provided with a hollow hole (165).

10. A portable air sampler based on liquid respiration method according to claim 1, characterized in that: A front groove (113) is provided on the surface of the front panel (11); and a right groove (125) is provided on the surface of the right panel (12).

Images