A gas sampling device for air monitoring
By integrating multiple sampling chambers and capping structures into a gas sampling device, the problem of inconvenient batch sampling in existing technologies has been solved, and the convenience and stability of simultaneously collecting multiple gas samples in the same device have been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG CHENGZHEN TESTING CO LTD
- Filing Date
- 2025-09-30
- Publication Date
- 2026-07-31
AI Technical Summary
Existing gas sampling equipment requires carrying multiple devices simultaneously when sampling in batches, which makes sampling inconvenient and makes it difficult to collect multiple gas samples at the same time under the same environmental conditions.
Design a gas sampling device that integrates multiple sampling chambers. The device enables simultaneous sampling of multiple chambers through an air pump and an air inlet pipe with a built-in valve, and ensures the stability and safety of the chambers through a pressure cap structure.
It achieves convenience and stability in batch gas sample collection within the same device, ensures the safety and stability of the sampling chamber within the housing, and reduces the space occupied by the device.
Smart Images
Figure CN224581230U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sampling equipment technology, and in particular to a gas sampling device for air monitoring. Background Technology
[0002] Gas sampling is an essential part of air monitoring. In important monitoring that requires high data reliability, such as environmental assessments, dispute arbitration, scientific research experiments, or compliance audits, multiple gas samples need to be collected simultaneously at the same sampling point using the same sampling equipment (or a calibrated equivalent equipment) under exactly the same environmental conditions.
[0003] In the existing technology, gas sampling equipment is mostly a single device. When batch sampling is required, it is generally necessary to carry multiple devices to collect multiple gas samples in batches under the same environmental conditions, which results in inconvenience in sampling. Utility Model Content
[0004] This application provides a gas sampling device for air monitoring, which integrates multiple sampling boxes into the same housing, enabling convenient batch gas sampling.
[0005] This application provides a gas sampling device for air monitoring, used for batch collection of gas samples. The gas sampling device includes a rectangular shell, and multiple detachable sampling chambers are arranged sequentially along the length of the shell. Each sampling chamber is equipped with an inlet pipe with a built-in gas valve. An air pump is provided at any end of the shell along the length of the shell. The outlet of the air pump is connected to an outlet hose. The outlet end of the outlet hose cooperates with the inlet pipe to automatically open the gas valve to fill the sampling chamber when connected, and to seal the inlet pipe through the gas valve after the outlet hose is pulled out. The top of the housing is hinged to the pressure caps on both sides by snap rings. The pressure caps include a first pressure cap, a plurality of second pressure caps, and a third pressure cap in sequence along the length direction. In the length direction, the center of the sampling box is directly opposite the connection position of the first pressure cap and the adjacent second pressure cap, or directly opposite the connection position of two adjacent second pressure caps, or directly opposite the connection position of the third pressure cap and the adjacent second pressure cap.
[0006] In one possible implementation, a plurality of limiting frames are sequentially arranged along the length of the housing to limit each of the sampling boxes and to make the sampling boxes suspended in the air. The air inlet pipe is located at the bottom of the sampling box, and the first pressure cover, the second pressure cover and the third pressure cover are hinged to the top of the limiting frames on both sides.
[0007] In one possible implementation, the housing has relief holes on both sides corresponding to the sampling box.
[0008] In one possible implementation, elastic pads are provided symmetrically on both sides of the relief hole within the limiting frame.
[0009] In one possible implementation, the top of the housing is provided with a cover plate, which cooperates with the pressure caps on both sides and is embedded between the pressure caps on both sides.
[0010] In one possible implementation, the cover plate is a lightweight cover plate.
[0011] Beneficial effects: Compared with the prior art, the gas sampling device for air monitoring provided in this application integrates multiple sampling boxes into the housing at the same time. Each sampling box can be filled with gas by an air pump to collect gas samples, which can facilitate batch gas sampling. In addition, each sampling box is limited by two pressure caps. The sampling box can only be taken out when both pressure caps are opened at the same time, which can ensure the stability and safety of the sampling box in the housing.
[0012] These and other objects, features and advantages of this utility model will be fully realized through the following detailed description. Attached Figure Description
[0013] Figure 1 A three-dimensional structural schematic diagram of the gas sampling device for air monitoring according to this application is shown.
[0014] Figure 2 A partial structural schematic diagram of the gas sampling device for air monitoring according to this application is shown.
[0015] Figure 3 A cross-sectional structural schematic diagram of the gas sampling device for air monitoring according to this application is shown. Detailed Implementation
[0016] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.
[0017] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.
[0018] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.
[0019] refer to Figures 1 to 3 This application provides a gas sampling device for air monitoring, used for batch gas sample collection. The gas sampling device includes a rectangular housing 10, within which multiple detachable sampling chambers 20 are arranged sequentially along the length direction. Each sampling chamber 20 is equipped with an inlet pipe with a built-in gas valve. Furthermore, an air pump (not shown in the figure) is located at any end of the housing 10 along the length direction. The outlet of the air pump is connected to an outlet hose, and the outlet end of the outlet hose cooperates with the inlet pipe. This allows the gas valve to be automatically opened when the hose is inserted, filling the sampling chamber 20 with gas. After the outlet hose is removed, the inlet pipe is sealed by the gas valve. Thus, during gas sampling, gas from the same location and under the same environmental conditions can be quickly collected by the air pump and injected into each sampling chamber 20 to obtain batch gas samples, making sampling very convenient. The air pump is an existing technology, and its main function is to conduct gas and collect gas from the external environment into the sampling box. The specific structure of the air pump will not be described in detail here. The air intake pipe with a built-in gas valve is an existing technology, similar to the function of a one-way valve, such as the air intake pipe on a tire. When the valve of an external air pump is inserted into the air intake pipe, the gas valve will automatically open, allowing air to be inflated. When the valve is pulled out of the air intake pipe, the gas valve will automatically seal the air intake pipe, preventing internal gas from leaking out.
[0020] The top of the housing 10 is hinged to two sides by spring clips with pressure caps 30. The pressure caps 30 include a first pressure cap 31, a plurality of second pressure caps 32, and a third pressure cap 33 in sequence along the length direction. In the length direction, the center of the sampling box 20 is directly opposite the connection position of the first pressure cap 31 and the adjacent second pressure cap 32, or the connection position of two adjacent second pressure caps 32, or the connection position of the third pressure cap 33 and the adjacent second pressure cap 32. In this way, two adjacent pressure caps 30 need to be flipped at the same time to remove the corresponding sampling box 20 inside. For example, when it is necessary to remove the sampling box 20 on the left side, the first pressure caps 31 and the adjacent second pressure caps 32 on both sides need to be flipped at the same time. When it is necessary to remove the sampling box 20 in the middle, the two second pressure caps 32 on both sides need to be flipped at the same time. When it is necessary to remove the sampling box 20 on the right side, the third pressure caps 33 and the adjacent second pressure caps 32 on both sides need to be flipped at the same time. This can ensure the stability and safety of the sampling box 20 inside the housing 10.
[0021] The pressure cap 30 is always on top of the sampling box 20 in the initial state, thanks to the snap ring. The pressure cap 30 can be flipped outwards by external force to remove the sampling box 20, and it automatically returns to its original position after the external force is removed. The snap ring is existing technology, and its working principle and specific structure will not be described in detail here.
[0022] In one embodiment, a plurality of limiting frames 11 are sequentially arranged along the length direction inside the housing 10 to limit each of the sampling boxes 20 respectively, so that the sampling box 20 is in a suspended state. At the same time, the air inlet pipe is located at the bottom of the sampling box 20, and the first pressure cover 31, the second pressure cover 32 and the third pressure cover 33 are hinged to the top of the limiting frame 11 on both sides. In this way, the overall structure of the sampling device is more compact and occupies less space. During the gas sampling process, it is only necessary to slightly open the housing 10 to connect the gas outlet hose and the air inlet pipe. In addition, the air inlet pipe is located at the bottom, so it is not easy to damage the air inlet pipe.
[0023] In one embodiment, the housing 10 has light-reducing holes 101 on both sides corresponding to the sampling box 20, which are used to reduce the weight of the entire sampling device without affecting the stability of the sampling box 20 within the housing 10, i.e., without affecting the limiting effect on the sampling box 20.
[0024] In one embodiment, the limiting frame 11 is symmetrically provided with elastic pads 12 on both sides of the relief hole 101, so that when the sampling box 20 is placed in, the sampling box 20 will squeeze the elastic pads 21, that is, the sampling box 20 and the housing 10 maintain an elastic contact relationship, which can ensure the stability of the sampling box 20 in the housing 10 and prevent damage to the sampling box 20.
[0025] In one embodiment, the top of the housing 10 is provided with a cover plate 13, and the cover plate 13 cooperates with the pressure caps 30 on both sides and is embedded between the pressure caps 30 on both sides. The cover plate 13 is preferably a lightweight cover plate, such as a calcium silicate cover plate, which is not only lightweight but also has good fire resistance, or a fiber cover plate, which is not only lightweight but also has good heat insulation effect. In this way, it can play a protective role and reduce the overall weight of the sampling device.
[0026] To facilitate the installation of the air pump, the outer surface of the housing 10, such as the leftmost end of the housing 10, can also be pre-welded with an air pump mounting bracket or air pump mounting base 14.
[0027] It should be noted that the terms "first, second, and third" used in this application are for descriptive purposes only, do not indicate any order, and should not be construed as indicating or implying relative importance. These terms can be interpreted as names.
[0028] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.
Claims
1. An air monitoring gas sampling apparatus for batch collection of gas samples, characterised in that, The gas sampling device includes a rectangular housing, inside which multiple detachable sampling chambers are arranged sequentially along the length direction. Each sampling chamber is equipped with an inlet pipe with a built-in gas valve. An air pump is provided at any end of the housing along the length direction. The outlet of the air pump is connected to an outlet hose. The outlet end of the outlet hose cooperates with the inlet pipe to automatically open the gas valve to inflate the sampling chamber when it is inserted, and to seal the inlet pipe through the gas valve after the outlet hose is pulled out. The top of the housing is hinged to the pressure caps on both sides by snap rings. The pressure caps include a first pressure cap, a plurality of second pressure caps, and a third pressure cap in sequence along the length direction. In the length direction, the center of the sampling box is directly opposite the connection position of the first pressure cap and the adjacent second pressure cap, or directly opposite the connection position of two adjacent second pressure caps, or directly opposite the connection position of the third pressure cap and the adjacent second pressure cap.
2. The gas sampling device for air monitoring as described in claim 1, characterized in that, Multiple limiting frames are sequentially arranged along the length of the housing to limit each sampling box and make the sampling box suspended. The air inlet pipe is located at the bottom of the sampling box. The first pressure cover, the second pressure cover and the third pressure cover are hinged to the top of the limiting frames on both sides.
3. The gas sampling device for air monitoring as described in claim 2, characterized in that, The housing has light-reducing holes on both sides corresponding to the sampling box.
4. The gas sampling device for air monitoring as described in claim 3, characterized in that, The limiting frame is provided with elastic pads symmetrically on both sides of the relief hole.
5. The gas sampling device for air monitoring as described in claim 2, characterized in that, The top of the housing is provided with a cover plate, which cooperates with the pressure caps on both sides and is embedded between the pressure caps on both sides.
6. The gas sampling device for air monitoring as described in claim 5, characterized in that, The cover plate is a lightweight cover plate.