A portable liquid sampler

Abstract

The utility model discloses a portable liquid sampler relates to industrial equipment technical field, solves the technical problem of sealing liquid sampling equipment, device structure complex, inconvenient operation, influence liquid sampling quality in the prior art. The utility model provides a portable liquid sampler, including outer sleeve, inner sleeve and sampling needle, and the inner sleeve is located in the inside of outer sleeve, and the outer side wall of inner sleeve and the inner wall of outer sleeve are sealed and can be relatively sliding connection through the sealing washer, the left end of outer sleeve is the open structure of butt joint matching with bottle cap, and the sampling needle is connected in the left end of inner sleeve, and the sampling needle is horizontally arranged with outer sleeve, and the sampling needle includes a group of long needle and short needle of horizontal arrangement, and the liquid outlet pipe and air inlet pipe that are communicated with long needle and short needle are equipped respectively in the inside of inner sleeve, and the outer end of liquid outlet pipe and air inlet pipe extends to the right side of inner sleeve, and after passing through the inner sleeve side wall and outer sleeve side wall in proper order, the outer sleeve is stretched out.

Description

Technical Field

[0001] This utility model relates to the field of industrial equipment technology, specifically a portable liquid sampler. Background Technology

[0002] For liquid sampling processes that require isolation from air and moisture, such as lithium battery electrolyte sampling, it is essential to avoid these conditions. If air or moisture enters the sample, it can cause decomposition reactions in the electrolyte and other liquids, leading to contamination. Therefore, proper operation ultimately affects the quality of the sampled liquid.

[0003] Existing sealed liquid sampling equipment has a complex structure, and even for small-volume sampling operations, it still requires complex devices, which is very inconvenient to operate and can also cause some damage to the original liquid sample, affecting the quality of liquid sampling. Summary of the Invention

[0004] This invention addresses the shortcomings and deficiencies of existing technologies by providing a portable liquid sampler with an ingenious structural design, convenient installation and positioning, easy use, high sample quality, and the ability to preserve the actual quality of the sampled liquid. It is especially suitable for sampling small-volume samples.

[0005] To achieve the above objectives, this utility model provides the following technical solution: The portable liquid sampler includes an outer sleeve, an inner sleeve, and a sampling needle. The inner sleeve is located inside the outer sleeve, and the outer wall of the inner sleeve and the inner wall of the outer sleeve are sealed by a sealing ring and can be slidably connected. The left end of the outer sleeve has an opening structure that matches the bottle cap.

[0006] The sampling needle is connected to the left end of the inner sleeve, and the sampling needle is set horizontally with the outer sleeve.

[0007] The sampling needles consist of a set of long and short needles arranged horizontally.

[0008] Inside the inner sleeve, there are also liquid outlet pipes and air inlet pipes that communicate with the long needle and the short needle, respectively. The outer ends of the liquid outlet pipes and air inlet pipes extend to the right side of the inner sleeve, pass through the side wall of the inner sleeve and the side wall of the outer sleeve in sequence, and then extend out of the outer sleeve.

[0009] Preferably, the inner sleeve is completely inside the outer sleeve, and the right end of the inner sleeve can be adjusted for lateral pushing and pulling via a push-pull linkage device.

[0010] Preferably, a quick clamp is connected to the outer side of the right end of the outer sleeve. The quick clamp includes an adjusting handle, a mounting bracket, and a connecting rod. The mounting bracket is installed on the outer side of the right end of the outer sleeve. The adjusting handle is limited and connected to the outer end of the mounting bracket, and one end of the adjusting handle is connected to the connecting rod. The other end of the connecting rod passes through the right end of the outer sleeve and is connected to the push-pull connecting rod device at the right end of the inner sleeve. By pushing and pulling the adjusting handle, the inner sleeve is driven to move left and right inside the outer sleeve, and finally the sampling needle at the left end of the inner sleeve is controlled to move left and right.

[0011] Preferably, the direction of the adjustment handle is perpendicular to the direction of the outer sleeve.

[0012] The mounting bracket is equipped with a sliding groove that matches the linkage rod, and the linkage rod can move left and right along the sliding groove;

[0013] Furthermore, when the linkage rod moves to the leftmost end, the sampling needle can extend fully out of the left end of the outer sleeve.

[0014] Preferably, the outer sleeve is composed of multi-segment detachable sleeves, and the connection between adjacent segments of the sleeves is fixedly connected by internal and external threads.

[0015] Preferably, the outer sleeve is composed of a first external threaded sleeve, a second double-ended internal threaded sleeve, a third double-ended external threaded sleeve, a fourth double-ended internal threaded sleeve, a fifth double-ended external threaded sleeve, and a sixth internal threaded sleeve, connected from left to right to form an outer sleeve structure with an open left end.

[0016] The left end of the first external threaded sleeve has an opening that matches the bottle cap.

[0017] Both the second and fourth double-ended internal threaded sleeves have sealing rings that fit around the outer wall of the inner sleeve in the unthreaded area between them.

[0018] The left end of the inner sleeve extends into the first external threaded sleeve.

[0019] The outer end interfaces of the liquid outlet pipe and the air inlet pipe are located on the side wall of the fifth double-ended external threaded sleeve.

[0020] Preferably, the sealing ring material is a PTFE sealing ring;

[0021] Both the liquid outlet pipe and the air inlet pipe are capillary tubes. The liquid outlet pipe (10) and the air inlet pipe (11) are both capillary tubes, and their materials are corrosion-resistant materials, specifically PP or stainless steel (304 / 316L), and their inner diameter is φ5mm~φ15mm.

[0022] This invention provides a portable liquid sampler. It has the following advantages:

[0023] This utility model of a portable liquid sampler features an ingenious structural design, convenient installation and positioning, easy use, and high-quality sample extraction without damaging the actual quality of the sampled liquid. It is especially suitable for portable liquid samplers for small-volume samples. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure of the enlarged view of A in the diagram;

[0026] Figure 3 This is a schematic diagram of the portable liquid sampler of this utility model in use.

[0027] In the diagram: 1. Outer sleeve, 2. Inner sleeve, 3. Sampling needle, 4. Sealing ring, 5. Bottle cap, 6. Adjusting handle, 7. Mounting bracket, 8. Linkage rod, 9. Push-pull linkage device, 10. Liquid outlet pipe, 11. Air inlet pipe, 101. First external threaded sleeve, 102. Second double-ended internal threaded sleeve, 103. Third double-ended external threaded sleeve, 104. Fourth double-ended internal threaded sleeve, 105. Fifth double-ended external threaded sleeve, 106. Sixth internal thread end, 301. Long needle, 302. Short needle. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Please see Figures 1-3 This utility model provides a technical solution:

[0031] like Figures 1-2As shown, the portable liquid sampler provided by this utility model includes an outer sleeve 1, an inner sleeve 2, and a sampling needle 3. The inner sleeve 2 is located inside the outer sleeve 1, and the outer wall of the inner sleeve 2 and the inner wall of the outer sleeve 1 are sealed by a sealing ring 4 and can be slidably connected. The left end of the outer sleeve 1 is an opening structure that matches the bottle cap 5.

[0032] The sampling needle 3 is connected to the left end of the inner sleeve 2, and is horizontally positioned with the outer sleeve 1. The sampling needle 3 includes a set of horizontally positioned long needles 301 and short needles 302. Inside the inner sleeve 2, there are also outlet tubes 10 and inlet tubes 11 that communicate with the long needles 301 and short needles 302, respectively. The outer ends of the outlet tubes 10 and inlet tubes 11 extend to the right side of the inner sleeve 2, pass through the side wall of the inner sleeve 2 and the side wall of the outer sleeve 1 in sequence, and then extend out of the outer sleeve 1. Both the outlet tubes 10 and inlet tubes 11 are capillary tubes made of corrosion-resistant materials such as PP or stainless steel (304 / 316L), with an inner diameter of φ5~φ15mm, which facilitates micro-sampling operations.

[0033] The liquid outlet tube 10 is connected to the rear end of the long needle 301, and the air inlet tube 11 is connected to the rear end of the short needle 302. During use, inert gas is blown in through the air inlet tube 11 to increase the volume of inert gas in the sampling bottle, squeezing the liquid in the bottle to flow out from the long needle 301 to the liquid outlet tube 10, thereby achieving small-volume, high-quality sampling of the liquid in the bottle. The overall operation is convenient, time-saving, and labor-saving, and can be miniaturized to meet the needs of accurate, high-quality liquid sampling that is isolated from air and moisture.

[0034] The portable liquid sampler of this utility model has an inner sleeve 2 completely inside the outer sleeve 1, and the right end of the inner sleeve 2 can be adjusted to be pushed and pulled laterally through the push-pull linkage device 9, thereby realizing the left and right push and pull of the sampling needle 3 at the left end of the inner sleeve 2, thereby controlling the sampling needle 3 to be accurately pushed and inserted into the cap of the sample bottle during sampling, further improving the convenience of sampling operation.

[0035] A quick clamp is connected to the outer right end of the outer sleeve 1. The quick clamp includes an adjusting handle 6, a mounting bracket 7, and a connecting rod 8. The mounting bracket 7 is installed on the outer right end of the outer sleeve 1. The adjusting handle 6 is limited and connected to the outer end of the mounting bracket 7, and one end of the adjusting handle 6 is connected to the connecting rod 8. The other end of the connecting rod 8 passes through the right end of the outer sleeve 1 and is connected to the push-pull connecting rod device 9 at the right end of the inner sleeve 2. By pushing and pulling the adjusting handle 6, the inner sleeve 2 is driven to move left and right inside the outer sleeve 1, which ultimately controls the left and right movement of the sampling needle 3 at the left end of the inner sleeve 2. This further improves the operability of pushing the sampling needle 3, saves time and effort, and significantly improves the efficiency of actual sampling.

[0036] The adjustment handle 6 is set in a direction perpendicular to the outer sleeve 1. The mounting bracket 7 is provided with a sliding groove that matches the linkage rod 8. The linkage rod 8 can move left and right along the sliding groove. When the linkage rod 8 moves to the leftmost end, the sampling needle 3 can extend fully out of the left end of the outer sleeve 1, thereby enabling the sampling needle 3 to be accurately inserted into the cap of the liquid sample bottle in a sealed and isolated environment.

[0037] The outer sleeve 1 is composed of multi-segmented, detachable sleeves, with adjacent segments connected by internal and external threads. From left to right, the outer sleeve 1 consists of a first external threaded sleeve 101, a second double-ended internal threaded sleeve 102, a third double-ended external threaded sleeve 103, a fourth double-ended internal threaded sleeve 104, a fifth double-ended external threaded sleeve 105, and a sixth internal threaded end 106, forming a left-open structure. The left end of the first external threaded sleeve 101 is an opening that matches the bottle cap 5; the left end of the inner sleeve 2 extends into the first external threaded sleeve 101. The unthreaded areas between the second double-ended internal threaded sleeve 102 and the fourth double-ended internal threaded sleeve 104 are connected to and fitted onto the outer wall of the inner sleeve 2; the outer end interfaces of the liquid outlet pipe 10 and the air inlet pipe 11 are located on the side wall of the fifth double-ended external threaded sleeve 105. The sealing ring 4 is made of PTFE. The above structural design firstly ensures the sealing of the connection space between the inner sleeve 2 and the first external threaded sleeve 101, allowing the sampling needle 3 to be inserted into the sample bottle cap 5 in a sealed, airtight environment. This further ensures that the air environment is isolated during the sampling process, maximizing the protection of the extracted liquid sample from deterioration.

[0038] like Figure 3 As shown, during use, firstly, by pulling the adjustment handle 6 to the rightmost position, the sampling needle 3 at the end of the inner sleeve 2 is moved completely into the outer sleeve 1; the outer sleeve 1 is then connected from left to right to the left end opening of the first external threaded sleeve 101 to the bottle cap 5 of the sampling bottle, forming a sealed space; then, inert gas (nitrogen) is blown in from the air inlet pipe 11 to the short needle 302, and the airflow flows out from the long needle 301 to the outer end of the liquid outlet pipe 10, so that an airtight sealed environment is formed between the first external threaded sleeve 101 and the bottle cap 5 of the sample bottle; inert gas is continuously introduced.

[0039] By pushing the adjusting handle 6 downwards, the sampling needle 3 at the end of the inner sleeve 2 is gradually inserted into the sampling bottle cap 5. Both the long needle 301 and the short needle 302 then enter the sampling bottle. At this point, inert gas enters the vertical sampling bottle through the short needle 302, causing gas to accumulate at the top cap. This compresses the liquid inside the sampling bottle, causing it to flow out through the long needle 301 and finally out through the outer end of the outlet tube 10. This achieves sealed sampling in an airtight environment, ensuring that the sampled product does not deteriorate and does not contaminate the sample inside the bottle. The overall airtight sampling operation is convenient, quick, and labor-saving, meeting the needs of precise small-volume sampling.

[0040] After sampling is completed, by pulling up the adjustment handle 6, the sampling needle 3 at the end of the inner sleeve 2 is gradually pulled out of the bottle cap 5. The air inlet end of the short needle 302 moves out of the bottle first, and then the long needle 301 and the short needle 302 are completely moved out of the sampling bottle, completing one sampling operation.

[0041] In summary, this portable liquid sampler enables small-volume, high-quality sampling of liquids from bottles. It is convenient, time-saving, and labor-saving to operate, and can be miniaturized to meet the needs of precise, high-quality liquid sampling that is isolated from air and moisture.

[0042] The above are merely embodiments of this utility model. For example, the liquid outlet tube 10 and the air inlet tube 11 are both capillary tubes made of corrosion-resistant materials, specifically PP or stainless steel (304 / 316L), and their inner diameters are φ5mm to φ15mm. The portable liquid sampler of this utility model can be realized by changing the material and size of the outer sleeve 1, the inner sleeve 2, and the sampling needle 3.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A portable liquid sampler characterized by, It includes an outer sleeve (1), an inner sleeve (2) and a sampling needle (3). The inner sleeve (2) is located inside the outer sleeve (1), and the outer wall of the inner sleeve (2) and the inner wall of the outer sleeve (1) are sealed by a sealing ring (4) and can be slidably connected. The left end of the outer sleeve (1) is an opening structure that matches the bottle cap (5). The sampling needle (3) is connected to the left end of the inner sleeve (2), and the sampling needle (3) is horizontally arranged with the outer sleeve (1); The sampling needle (3) includes a set of long needles (301) and short needles (302) arranged horizontally. Inside the inner sleeve (2), there are also liquid outlet pipes (10) and air inlet pipes (11) that communicate with the long needles (301) and short needles (302), respectively. The outer ends of the liquid outlet pipes (10) and air inlet pipes (11) extend to the right side of the inner sleeve (2), pass through the side wall of the inner sleeve (2) and the side wall of the outer sleeve (1) in sequence, and then extend out of the outer sleeve (1).

2. A portable liquid sampler according to claim 1, wherein, The inner sleeve (2) is completely located inside the outer sleeve (1), and the right end of the inner sleeve (2) can be adjusted to be pushed and pulled laterally via a push-pull linkage device (9).

3. A portable liquid sampler according to claim 2, characterized in that, A quick clamp is connected to the outer side of the right end of the outer sleeve (1). The quick clamp includes an adjustment handle (6), a mounting bracket (7), and a connecting rod (8). The mounting bracket (7) is installed on the outer side of the right end of the outer sleeve (1). The adjustment handle (6) is limited to the outer end of the mounting bracket (7), and one end of the handle is connected to the connecting rod (8). The other end of the connecting rod (8) passes through the right end of the outer sleeve (1) and is connected to the push-pull connecting rod device (9) at the right end of the inner sleeve (2). By pushing and pulling the adjustment handle (6), the inner sleeve (2) is moved left and right inside the outer sleeve (1), and finally the sampling needle (3) at the left end of the inner sleeve (2) is moved left and right.

4. A portable liquid sampler according to claim 3, characterized in that, The adjustment handle (6) is set in a direction perpendicular to the outer sleeve (1). The mounting bracket (7) is provided with a sliding groove that matches the connecting rod (8), and the connecting rod (8) can move left and right along the sliding groove; And when the linkage rod (8) moves to the leftmost end, the sampling needle (3) can extend fully out of the left end of the outer sleeve (1).

5. A portable liquid sampler according to claim 1, characterized in that, The outer sleeve (1) is composed of multi-segment detachable segmented sleeves, and the connection between adjacent segments of the segmented sleeves is fixedly connected by internal and external threads.

6. A portable liquid sampler according to claim 5, characterized in that, The outer sleeve (1) is composed of a first external threaded sleeve (101), a second double-ended internal threaded sleeve (102), a third double-ended external threaded sleeve (103), a fourth double-ended internal threaded sleeve (104), a fifth double-ended external threaded sleeve (105), and a sixth internal threaded end (106) connected from left to right to form an outer sleeve (1) structure with an open left end; The left end of the first external threaded sleeve (101) has an opening that matches the bottle cap (5). The unthreaded areas between the second double-ended internal threaded sleeve (102) and the fourth double-ended internal threaded sleeve (104) are both connected to a sealing ring (4) that is sleeved on the outer wall of the inner sleeve (2). The left end of the inner sleeve (2) extends into the interior of the first external threaded sleeve (101). The outer end interfaces of the liquid outlet pipe (10) and the air inlet pipe (11) are located on the side wall of the fifth double-headed external threaded sleeve (105).

7. A portable liquid sampler according to claim 6, characterized in that, The sealing ring (4) is made of PTFE. The liquid outlet pipe (10) and the air inlet pipe (11) are both capillary tubes made of corrosion-resistant materials, specifically PP or stainless steel, and their inner diameter is φ5mm~φ15mm.

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