Portable sampling device with storage function

Abstract

The portable sampling device with the storage function comprises a protective shell, a sampling tube, a sampling needle head, a connecting rod and a connecting sleeve, a top cover is arranged at the top of the protective shell, the sampling tube is arranged in the protective shell, the sampling needle head is arranged at the bottom of the sampling tube, and the connecting rod is connected with the connecting sleeve. And a connecting sleeve is arranged on the outer side of the connecting rod. Through the arrangement of the protective shell, when the sampling device is not used, the sampling needle head is stored in the protective shell in a sliding manner, and the protective shell provides a protective environment for the sampling needle head, so that the sampling needle head can be effectively prevented from being exposed outside, and the sampling needle head can be effectively prevented from being polluted and damaged by the external environment; compared with the prior art, the needle head cleaning device has the advantages that the needle head cleanliness and completeness are guaranteed, the risk that people are scratched or punctured by the needle head can be greatly reduced, meanwhile, physical damage caused by collision, bending and the like of the needle head is avoided, and management and carrying by operators are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling, in particular to a portable sampling device with a storage function. Background Art

[0002] A sampling device is a tool used to collect samples. A sampling device can obtain liquid, solid or gas samples. The main function of a sampling device is to sample the medium under various environmental conditions and transport the samples to the laboratory for testing or analysis. It is widely used in biology, environmental science, medicine and other fields.

[0003] The sampling needles in the existing sampling devices are mostly directly exposed to the outside, but the sampling needles are usually sharp. For example, the sampling device disclosed in the announcement number CN212275325U does not have a storage and protection structure for the sampling head. If proper storage and protection is not performed, the exposed sampling head is not only susceptible to physical damage, such as collision, bending, etc., resulting in sampling failure or equipment damage, but also easily causes scratches, punctures and other injuries to operators or other contacts. At the same time, the unstored sampling head is easily affected by the external environment, such as dust, moisture, etc., resulting in problems such as rust and blockage of the needle, which will not only affect the accuracy of the next sampling, but may also interfere with the analysis results.

[0004] Therefore, it is necessary to invent a portable sampling device with a storage function to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a portable sampling device with a storage function, so as to solve the problem that the technology does not have the storage function.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable sampling device with a storage function, comprising a protective shell, a sampling tube, a sampling needle, a connecting rod and a connecting sleeve, a top cover is arranged on the top of the protective shell, a sampling tube is arranged inside the protective shell, a sealing cover is arranged on the top of the sampling tube, a piston pull rod is connected to the sealing cover, a sampling needle is arranged on the bottom of the sampling tube, a connecting rod is arranged at the bottom center of the protective shell, and a connecting sleeve is arranged on the outside of the connecting rod.

[0007] Preferably, the protective shell is designed to be hollow, the inner diameter of the protective shell is larger than the outer diameter of the sampling tube, and the center line of the protective shell coincides with the center line of the sampling tube, so that the protective shell can provide a protective environment for the sampling needle, which not only effectively protects the integrity and cleanliness of the sampling needle, but also facilitates management and carrying.

[0008] Preferably, the piston pull rod is arranged at the center position of the top cover and the sealing cover, and the piston pull rod passes through the top cover and the sealing cover. The piston pull rod and the top cover and the sealing cover are slidably connected, so that the position of the rubber piston in the sampling tube can be conveniently controlled by moving the piston pull rod.

[0009] Preferably, a rubber piston is fixedly installed at the bottom of the piston pull rod, and the rubber piston is arranged inside the sampling tube. The outer wall of the rubber piston fits tightly with the inner wall of the sampling tube, so that the tight fit between the rubber piston and the inner wall of the sampling tube ensures the sealing inside the sampling tube, which prevents the leakage of samples or the entry of external impurities during the sampling process, thereby ensuring the accuracy and purity of the sampling.

[0010] Preferably, a slider is fixedly connected to the side wall of the sealing cover, a slide groove is provided at the contact position between the protective shell and the slider, the slider and the slide groove are slidably connected, and two sliders are provided, so that the slider and the slide groove are convenient for sliding and accommodating the position of the sampling needle inside the protective shell.

[0011] Preferably, an observation window is provided on the front side of the protective shell, and scale lines are provided on the front outer wall of the sampling tube. The observation window is made of transparent glass, and the position of the observation window corresponds to the position of the scale lines, so that the observation window allows the operator to directly observe the sample condition inside the sampling tube, and the scale lines provide a reference standard for the sampling amount. Through the observation window and the scale lines, the operator can intuitively understand the amount that has been sampled, and thus adjust the sampling operation as needed.

[0012] Preferably, the connecting rod and the connecting sleeve are threadedly connected, and the outer wall thread of the connecting rod matches the inner wall thread of the connecting sleeve, so that the connecting sleeve can be easily disassembled from the connecting rod by thread.

[0013] Preferably, a bottom pad is provided at the center of the bottom end of the interior of the connecting sleeve, and the bottom pad is provided directly below the sampling needle. The bottom pad is made of silicone material, and the outer wall of the connecting sleeve is provided with anti-slip grooves, so that the bottom pad can protect the sampling needle and prevent the sampling needle from being hit or damaged by external objects. The design of the anti-slip grooves increases the roughness of the outer wall of the connecting sleeve, thereby increasing the friction, so that the operator can hold the connecting sleeve more firmly to prevent slipping.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] By setting up the protective shell, when the sampling device is not in use, the sampling needle is slid and stored inside the protective shell. The protective shell provides a protective environment for the sampling needle, which can effectively prevent the sampling needle from being exposed to the outside. It can not only effectively prevent the sampling needle from being contaminated and damaged by the external environment, ensuring the cleanliness and integrity of the needle, but also greatly reduce the risk of people being scratched or stabbed by the needle. At the same time, it also avoids physical damage to the needle caused by collision, bending, etc., which facilitates the management and carrying of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the slider and the slide groove of the utility model;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the protective housing and the sampling tube of the utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the sampling needle of the utility model;

[0020] Figure 5 It is a schematic diagram of the exploded three-dimensional structure of the connecting rod and the connecting sleeve of the utility model;

[0021] Figure 6 For the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0022] Description of reference numerals:

[0023] 1. Protective shell; 2. Top cover; 3. Sampling tube; 4. Sealing cover; 5. Piston rod; 6. Rubber piston; 7. Sampling needle; 8. Slider; 9. Slide; 10. Observation window; 11. Scale line; 12. Connecting rod; 13. Connecting sleeve; 14. Bottom pad; 15. Anti-slip pattern. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-6A portable sampling device with a storage function is shown, comprising a protective shell 1, a top cover 2 is provided on the top of the protective shell 1, a sampling tube 3 is provided inside the protective shell 1, a sealing cover 4 is provided on the top of the sampling tube 3, a piston pull rod 5 is connected to the sealing cover 4, the piston pull rod 5 is provided at the center position of the top cover 2 and the sealing cover 4, the piston pull rod 5 penetrates the top cover 2 and the sealing cover 4, the piston pull rod 5 and the top cover 2 and the sealing cover 4 are slidably connected, a rubber piston 6 is fixedly installed at the bottom of the piston pull rod 5, the rubber piston 6 is provided inside the sampling tube 3, the outer wall of the rubber piston 6 is tightly fitted with the inner wall of the sampling tube 3, a sampling needle 7 is provided at the bottom of the sampling tube 3, a connecting rod 12 is provided at the bottom center of the protective shell 1, and a connecting sleeve 13 is provided on the outer side of the connecting rod 12.

[0026] The protective shell 1 is designed to be hollow, the inner diameter of the protective shell 1 is larger than the outer diameter of the sampling tube 3, the center line of the protective shell 1 coincides with the center line of the sampling tube 3, the side wall of the sealing cover 4 is fixedly connected with a slider 8, a slide groove 9 is provided at the contact position between the protective shell 1 and the slider 8, the slider 8 and the slide groove 9 are slidably connected, and two sliders 8 are provided. An observation window 10 is provided on the front side of the protective shell 1, and a scale line 11 is provided on the front outer wall of the sampling tube 3. The observation window 10 is transparent glass, and the position of the observation window 10 corresponds to the position of the scale line 11. The connecting rod 12 and the connecting sleeve 13 are threadedly connected, and the outer wall thread of the connecting rod 12 matches the inner wall thread of the connecting sleeve 13. A bottom pad 14 is provided at the bottom center of the inside of the connecting sleeve 13. The bottom pad 14 is provided directly below the sampling needle 7, and the bottom pad 14 is made of silicone. The outer wall of the connecting sleeve 13 is provided with anti-slip patterns 15.

[0027] The protective shell 1 provided can provide a protective environment for the sampling needle 7, effectively preventing the needle from being exposed to the outside and preventing it from being contaminated and damaged by the external environment. It not only effectively protects the integrity and cleanliness of the sampling needle 7, but also avoids physical damage to the sampling needle 7 caused by collision, bending, etc., and is convenient for management and carrying. The connecting sleeve 13 and the connecting rod 12 provided with a threaded connection are convenient for threaded disassembly and assembly, thereby facilitating the removal and storage of the sampling needle 7. The provided bottom pad 14 can protect the sampling needle 7, preventing the sampling needle 7 from being damaged by direct contact with the connecting sleeve 13, thereby increasing the service life of the sampling needle 7. At the same time, the anti-slip pattern 15 increases friction, which helps the operator to more stably take the connecting sleeve 13 for disassembly and assembly operations, reducing the problem of hand slippage and inconvenience in operation.

[0028] Working principle of this utility model:

[0029] Refer to the instruction manual Figure 1-6When using the utility model, first, when using the sampling device, extend the sampling needle 7 at the bottom of the sampling device into the target to be sampled, and then pull the piston rod 5 upwards, so that the sampled target enters the sampling tube 3 through the sampling needle 7. The sampling amount can be observed through the scale line 11 during the sampling process. When the sampling is completed, the sampling needle 7 can be wiped, cleaned and disinfected. At this time, the sampling tube 3 and the sampling needle 7 can be slid and stored into the protective shell 1 through the slider 8 and the slide groove 9, and then the connecting sleeve 13 is threadedly installed on the connecting rod 12, thereby ensuring that the sampling needle 7 is stored in the protective shell 1, so that the operator can quickly take out and use and store the sampling needle 7 when needed. At the same time, the protective shell 1 provides a good protective effect for the sampling needle 7. Finally, the sampled sample can be sent to the laboratory for analysis. During the movement or transportation process, the protective shell 1 can ensure the safety of the sampling needle 7 to prevent it from accidentally falling off or puncturing the package.

Claims

1. A portable sampling device with a storage function, comprising a protective housing (1), a sampling tube (3), a sampling needle (7), a connecting rod (12) and a connecting sleeve (13), characterized in that: A top cover (2) is arranged on the top of the protective shell (1), a sampling tube (3) is arranged inside the protective shell (1), a sealing cover (4) is arranged on the top of the sampling tube (3), a piston pull rod (5) is connected to the sealing cover (4), a sampling needle (7) is arranged on the bottom of the sampling tube (3), a connecting rod (12) is arranged at the center of the bottom of the protective shell (1), and a connecting sleeve (13) is arranged on the outside of the connecting rod (12).

2. A portable sampling device with storage function according to claim 1, characterized in that: The protective shell (1) is designed to be hollow, the inner diameter of the protective shell (1) is larger than the outer diameter of the sampling tube (3), and the center line of the protective shell (1) coincides with the center line of the sampling tube (3).

3. The portable sampling device with storage function according to claim 1, characterized in that: The piston pull rod (5) is arranged at the center position of the top cover (2) and the sealing cover (4), and the piston pull rod (5) penetrates the top cover (2) and the sealing cover (4). The piston pull rod (5) is slidably connected to the top cover (2) and the sealing cover (4).

4. A portable sampling device with storage function according to claim 3, characterized in that: A rubber piston (6) is fixedly mounted on the bottom of the piston pull rod (5). The rubber piston (6) is arranged inside the sampling tube (3). The outer wall of the rubber piston (6) is tightly fitted to the inner wall of the sampling tube (3).

5. The portable sampling device with storage function according to claim 1, characterized in that: A slider (8) is fixedly connected to the side wall of the sealing cover (4); a slide groove (9) is provided at the contact position between the protective shell (1) and the slider (8); the slider (8) and the slide groove (9) are in sliding connection; and two sliders (8) are provided.

6. The portable sampling device with storage function according to claim 2, characterized in that: An observation window (10) is provided on the front side of the protective housing (1), and a scale line (11) is provided on the front outer wall of the sampling tube (3); the observation window (10) is made of transparent glass, and the position of the observation window (10) corresponds to the position of the scale line (11).

7. The portable sampling device with storage function according to claim 1, characterized in that: The connecting rod (12) and the connecting sleeve (13) are threadedly connected, and the outer wall thread of the connecting rod (12) matches the inner wall thread of the connecting sleeve (13).

8. The portable sampling device with storage function according to claim 7, characterized in that: A bottom pad (14) is arranged at the center of the bottom end of the connecting sleeve (13). The bottom pad (14) is arranged directly below the sampling needle (7). The bottom pad (14) is made of silica gel. The outer wall of the connecting sleeve (13) is provided with anti-slip grooves (15).

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