Portable sampler
By arranging multiple sampling tubes on the positioning base plate and using connectors to quickly replace the sampling layer, it solves the problems of preparing a large number of pipes and difficult disassembly in traditional sampling methods, and achieves convenient and efficient acquisition of multiple samples.
Patent Information
- Application Number
- CN202420892294.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-04-26
AI Technical Summary
In traditional sampling methods, a sampling mechanism or sampling layer corresponds to a sampling pipeline, which leads to the need to prepare a large number of pipelines for backup switching, which is difficult to disassemble, high cost, and difficult to obtain data samples under different parameters in a convenient and convenient manner.
A portable sampler is designed. By setting multiple sampling tubes on the positioning base plate, and using connectors to realize the connection between the sampling tubes and the rapid replacement of the sampling layer, a single sampling container can quickly obtain multiple samples.
It improves the convenience of the sampler, saves costs, improves sampling efficiency, and simplifies the complex labor of researchers in establishing appropriate sampling methods.
Smart Images
Figure CN222364819U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a portable sampler and belongs to the technical field of smoke sampling instruments. Background Art
[0002] The main sampling methods for harmful metal substances (commonly aerosol substances) in industrial air pollution include filter collector method, solid adsorbent tube method and liquid absorption tube method. When using the filter collector method, the filtration part can be divided into microporous filter membrane and ultrafine glass fiber filter paper. When using the solid adsorbent tube method, the solid adsorbent tubes include activated carbon tubes, multi-purpose sampling tubes (OVS sampling tubes) and polyurethane foam plastic tubes. When using the above methods to adsorb harmful metal substances, different methods have different adsorption capacities for different harmful substances, and depending on the actual substances, additional improvements may be made on the basis of the original methods. In order to obtain the optimal solution within the range of sampling methods required for different harmful substances, it is quite necessary to establish more suitable sampling methods for different substances.
[0003] However, in the traditional sampling method, one sampling mechanism or sampling layer corresponds to one sampling pipeline. In order to obtain a large amount of data, it is usually necessary to prepare a large number of pipeline backup switches. Not only is it difficult to disassemble the sampling layer, but it also leads to an increase in the overall cost of the sampling equipment. It is difficult to easily obtain a large number of data samples under different parameter conditions, which brings certain difficulties to the relevant personnel in establishing the sampling system. Summary of the invention
[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a portable sampler for quickly obtaining multiple samples through a single sampling container when sampling polluted air in different situations, thereby improving the convenience of the sampler, saving costs and improving sampling efficiency.
[0005] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:
[0006] The utility model provides a portable sampler, including a positioning substrate, on which a plurality of sampling tubes are fixedly arranged, the plurality of sampling tubes are arranged in a straight line, the opposite surfaces of every two adjacent sampling tubes are provided with openings, the top of the topmost sampling tube is provided with a pipe interface connected to the sampling tube, the bottom of the bottommost sampling tube is provided with a pipe interface connected to an air pump, a connector is slidably arranged on the positioning substrate and between every two adjacent sampling tubes, the sliding direction is perpendicular to the axial direction of the sampling tube, and the connector comprises:
[0007] A first connecting tube is used to close the opening between two adjacent sampling tubes to form a connecting state between the sampling tubes;
[0008] The second connecting tube is arranged in parallel with the first connecting tube. A sampling layer is arranged inside the second connecting tube. The sampling layer is matched with the inner wall of the second connecting tube without gap. The second connecting tube can replace the connection position of the first connecting tube by sliding.
[0009] Specifically, the position where the sampling tube is used to engage with the connector is a plane.
[0010] Specifically, the upper and lower surfaces of the first connecting tube and the second connecting tube are both provided with sealing rings for stably fitting and contacting with the plane of the sampling tube.
[0011] Specifically, it also includes a plurality of fixers, which are arranged on the positioning substrate and are used to fix the corresponding plurality of sampling tubes at absolute positions relative to the positioning substrate.
[0012] Specifically, arc corners are provided on both sides of the sampling tube, and the fixture includes a first fixing block and a second fixing block which are arranged opposite to each other. The opposite sides of the first fixing block and the second fixing block are provided with grooves for matching the arc surface of the sampling tube. The first fixing block and the second fixing block can be close to or away from each other to achieve clamping of the sampling tube.
[0013] Specifically, the upper surfaces of the first fixing block and the second fixing block are not higher than the upper surface of the sampling tube, and the lower bottom surfaces of the first fixing block and the second fixing block are not lower than the bottom surface of the sampling tube.
[0014] Specifically, the first fixing block and the second fixing block are locked by bolts.
[0015] Specifically, each of the second connecting tubes is provided inside with a hollow plate for matching the shape of the corresponding sampling layer.
[0016] Specifically, the first connecting tube and the second connecting tube are fixedly connected by a connecting piece, and the connecting piece is slidably arranged on a positioning substrate. The positioning substrate is also provided with a plurality of groups of first limit blocks and second limit blocks, and the sliding range of the connecting piece is between the first limit blocks and the second limit blocks.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] The utility model simultaneously positions and sets a plurality of sampling tubes on a positioning substrate, and the plurality of sampling tubes switch the connection status with the first connecting tube and the second connecting tube through a connector, so that the corresponding sampling layer can be conveniently replaced into the flow channel where the sampling tube is located. After one sampling layer completes sampling, another sampling layer can be timely replaced for secondary sampling, which is beneficial for quickly obtaining a plurality of samples according to different parameter conditions, is more convenient to use, and is beneficial for researchers to establish appropriate sampling means to sample different harmful metal substances. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the portable sampler provided by the embodiment of the utility model;
[0020] Figure 2 It is a schematic diagram of the overall structure of another portable sampler provided by an embodiment of the utility model;
[0021] Figure 3 is a side view of a portable sampler provided by an embodiment of the utility model;
[0022] Figure 4 This utility model Figure 3 A cross-sectional view of the portable sampler provided in the embodiment in the AA direction;
[0023] Figure 5 It is a structural schematic diagram of the second fixing block provided by the utility model;
[0024] Figure numerals: 1, positioning substrate; 2, sampling tube; 3, connector; 301, first connecting tube; 302, second connecting tube; 303, sealing ring; 304, connecting piece; 4, fixer; 401, first fixing block; 402, second fixing block; 5, first limiting block; 6, second limiting block. DETAILED DESCRIPTION
[0025] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.
[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Example
[0028] The portable sampler provided by the embodiment of the utility model is used to quickly obtain multiple samples through a single sampling container when sampling polluted air in different situations, which improves the convenience of the sampler, saves costs and improves the sampling efficiency. In order to realize the structural function of the device, the device is provided here including a positioning substrate 1, wherein, reference can be made to Figure 1 As shown in the figure, a plurality of sampling tubes 2 are fixedly arranged on the positioning substrate 1, and the plurality of sampling tubes 2 are arranged in a straight line with each other (hereinafter referred to as Figure 1Taking the vertical arrangement shown as an example, and distinguishing the up and down, top and bottom and other features according to the vertical arrangement direction), the opposite surfaces of every two adjacent sampling tubes 2 are provided with openings, and the corresponding openings are preferably openings of equal caliber, wherein the top of the topmost sampling tube 2 is provided with a pipe interface connected to the sampling tube, and the bottom of the bottommost sampling tube 2 is provided with a pipe interface connected to the air pump, and a connector 3 is slidably arranged on the positioning substrate 1 and between every two adjacent sampling tubes 2, and the sliding direction is perpendicular to the axial direction of the sampling tube 2. The connector 3 is used to connect the corresponding two adjacent sampling tubes 2 so that the air pump can normally suck the gas and realize the collection of harmful metal substances in aerosol state. , wherein the connector 3 includes: a first connecting tube 301, which is used to close the opening between two adjacent sampling tubes 2 to form a connected state between the sampling tubes 2; a second connecting tube 302, which is arranged in parallel with the first connecting tube 301, and a sampling layer is arranged inside the second connecting tube 302, and the sampling layer and the inner wall of the second connecting tube 302 are matched without gaps to ensure good air tightness, wherein different types of sampling layers should be stored in different second connecting tubes 302, such as activated carbon tubes and empty filter membranes, etc. At this time, the second connecting tube 302 is set to replace the connection position of the first connecting tube 301 by sliding to realize the collection of harmful metal substances on the sampling layer. When the above mechanism is in use, only one second connecting tube 302 can maintain connection with the sampling tube 2, and the other sampling tubes 2 are connected through the first connecting tube 301. When it is necessary to replace the sampling layer for sampling, the corresponding second connecting tube 302 can be directly switched to the connected position. This method does not require the preparation of multiple sampling pipelines, and the disassembly and replacement of the sampling layer is simpler, which is conducive to quickly establishing a suitable sampling method for a certain harmful element, simplifying the complex labor work of researchers.
[0029] A portable sampler provided by an embodiment of the utility model specifically provides a method of sliding assembly but reducing its influence on sealing. Specifically, the position where the sampling tube 2 is used to engage with the connector 3 can be set as a plane, and the upper and lower surfaces of the first connecting tube 301 and the second connecting tube 302 are provided with sealing rings 303 for stable fitting contact with the plane of the sampling tube 2. When the connector 3 is slid, the sealing rings 303 (such as rubber rings) on the upper and lower surfaces of the first connecting tube 301 and the second connecting tube 302 are elastically squeezed through the connection plane of the sampling tube 2, and after finally reaching the connection position, the elastically squeezed state is maintained to achieve the sealing between the sampling tube 2 and the connector 3, which can effectively prevent gas leakage and cause non-standard sampling.
[0030] A portable sampler provided by an embodiment of the utility model, in order to ensure the position stability of the sampling tubes 2 relative to each other and prevent the problem of decreased connection performance due to position deviation, the device is also provided here including a plurality of fixers 4, and the plurality of fixers 4 are arranged on the positioning substrate 1, and are used to fix the corresponding plurality of sampling tubes 2 at absolute positions relative to the positioning substrate 1.
[0031] The portable sampler provided in the embodiment of the utility model is Figure 1 and Figure 2 As shown, a method for fixing the sampling tube 2 is specifically provided. Specifically, arc angles are provided on both sides of the sampling tube 2. The fixture 4 includes two first fixing blocks 401 and a second fixing block 402 that are relatively arranged (the shapes of the two fixing blocks can refer to Figure 5 As shown in the figure, the first fixing block 401 and the second fixing block 402 are provided with grooves on the opposite sides thereof for matching the arc-shaped surface of the sampling tube 2, and the first fixing block 401 and the second fixing block 402 can be close to or away from each other to clamp the sampling tube 2. As a further preferred solution, one of the fixing blocks, such as the second fixing block 402, can be relatively positioned and installed on the positioning substrate 1, and the first fixing block 401 can be independently hinged or slidably installed on the positioning substrate 1, so as to achieve the accuracy of the relative position of the sampling tube 2 after positioning.
[0032] A portable sampler provided by an embodiment of the utility model, in order to ensure that the connector 3 can slide between two adjacent sampling tubes 2, the upper top surface of the first fixing block 401 and the second fixing block 402 are set not higher than the top surface of the sampling tube 2, and the lower bottom surface of the first fixing block 401 and the second fixing block 402 are not lower than the bottom surface of the sampling tube 2, thereby ensuring that the sealing ring 303 can smoothly slide through the sampling tube 2 and contact therewith. In order to simplify the positioning of the sampling tube 2, the first fixing block 401 and the second fixing block 402 can be set to be locked by bolts.
[0033] A portable sampler provided by an embodiment of the utility model has a hollow plate matching the shape of the corresponding sampling layer inside each second connecting tube 302 for facilitating the installation of different sampling layers. The shapes or types of the sampling layers include but are not limited to funnel-shaped filter membranes, disc-shaped filter membranes, activated carbon layer filter elements, etc.
[0034] A portable sampler provided by an embodiment of the utility model specifically provides a mechanism for stably positioning a connector 3 in a position after sliding. Specifically, the first connecting tube 301 and the second connecting tube 302 are fixedly connected by a connecting member 304, and the connecting member 304 is slidably arranged on a positioning substrate 1. The positioning substrate 1 is also provided with a plurality of groups of first limiting blocks 5 and second limiting blocks 6, so that the sliding range of the connecting member 304 is between the first limiting blocks 5 and the second limiting blocks 6. Figure 2 As shown, when the connecting member 304 conflicts with the first limit block 5, the first connecting tube 301 is just connected to the sampling tube 2, and when the connecting member 304 conflicts with the second limit block 6, the second connecting tube 302 is just connected to the sampling tube 2, which can avoid the transitional displacement of the position of the connector 3 and is conducive to ensuring the accuracy of the sliding position. The fixing method of the connecting member 304 relative to the positioning substrate 1 is no longer specifically limited here, as long as it is reasonable.
[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A portable sampler, characterized in that: The invention comprises a positioning substrate (1), on which a plurality of sampling tubes (2) are fixedly arranged, the plurality of sampling tubes (2) are arranged in a straight line, the opposite surfaces of every two adjacent sampling tubes (2) are provided with openings, the top of the topmost sampling tube (2) is provided with a pipe interface connected to the sampling tube, and the bottom of the bottommost sampling tube (2) is provided with a pipe interface connected to an air pump, and a connector (3) is slidably arranged on the positioning substrate (1) and between every two adjacent sampling tubes (2), the sliding direction being perpendicular to the axial direction of the sampling tube (2), and the connector (3) comprises: A first connecting tube (301) is used to seal the opening between two adjacent sampling tubes (2) to form a connecting state between the sampling tubes (2); The second connecting tube (302) is arranged in parallel with the first connecting tube (301); a sampling layer is provided inside the second connecting tube (302); the sampling layer and the inner wall of the second connecting tube (302) are matched without clearance; the second connecting tube (302) can replace the connection position of the first connecting tube (301) by sliding.
2. A portable sampler according to claim 1, characterized in that: The position of the sampling tube (2) for joining with the connector (3) is a flat surface.
3. A portable sampler according to claim 2, characterized in that: The upper and lower surfaces of the first connecting tube (301) and the second connecting tube (302) are both provided with sealing rings (303) for stably fitting in contact with the sampling tube (2) on a plane.
4. A portable sampler according to claim 1, characterized in that: It also comprises a plurality of fixers (4), which are arranged on the positioning substrate (1) and are used to fix the corresponding plurality of sampling tubes (2) at absolute positions relative to the positioning substrate (1).
5. A portable sampler according to claim 4, characterized in that: Both sides of the sampling tube (2) are provided with arc corners, and the fixture (4) comprises a first fixing block (401) and a second fixing block (402) which are arranged opposite to each other, and grooves for matching the arc surface of the sampling tube (2) are provided on the opposite sides of the first fixing block (401) and the second fixing block (402), and the first fixing block (401) and the second fixing block (402) can be moved closer to or farther from each other to achieve clamping of the sampling tube (2).
6. A portable sampler according to claim 5, characterized in that: The upper surfaces of the first fixing block (401) and the second fixing block (402) are not higher than the upper surface of the sampling tube (2), and the lower surfaces of the first fixing block (401) and the second fixing block (402) are not lower than the lower surface of the sampling tube (2).
7. A portable sampler according to claim 6, characterized in that: The first fixing block (401) and the second fixing block (402) are locked by bolts.
8. A portable sampler according to claim 1, characterized in that: Each of the second connecting tubes (302) is provided inside with a hollow plate for matching the shape of the corresponding sampling layer.
9. A portable sampler according to claim 1, characterized in that: The first connecting tube (301) and the second connecting tube (302) are fixedly connected via a connecting piece (304); the connecting piece (304) is slidably arranged on a positioning substrate (1); a plurality of groups of first limit blocks (5) and second limit blocks (6) are also arranged on the positioning substrate (1); and the sliding range of the connecting piece (304) is between the first limit blocks (5) and the second limit blocks (6).