Sampling device for chemical analysis and detection

Abstract

The utility model discloses a sampling device for chemical analysis detection, which relates to the field of sampling devices and comprises a protective shell and a suction tube, a movable door is rotatably mounted on the side surface of the protective shell, an observation window is fixedly mounted on the movable door, the suction tube is movably mounted in the protective shell, a needle head is fixedly mounted on the bottom side of the suction tube, and the needle head is fixedly mounted on the bottom side of the suction tube. A sliding rod is slidably installed in the suction pipe, a rubber block is fixedly installed at the bottom end of the sliding rod, a pressing handle is fixedly installed at the top end of the sliding rod, a movable piece is slidably installed on the side face of the protection shell, and a parallel clamping hoop is fixedly installed at the top of the movable piece. According to the utility model, the suction tube and the needle head are used for collecting samples, meanwhile, the protection shell is used for protecting the suction tube therein, the safety of the suction tube during use and when the suction tube is not used is ensured, damage is avoided, the device limits the movement of the sliding rod through the quantitative pin and the quantitative sleeve, the purpose of quantitative sampling is achieved, and the metal ball is arranged as a liquid leakage prevention means. And the device is convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to a sampling device for chemical analysis and detection. Background Art

[0002] Chemical properties are the properties of a substance exhibited during chemical changes, such as the common chemical properties of the substance category: acidity, alkalinity, oxidizability, reducibility, thermal stability and some other characteristics. Chemical properties and chemical changes are inherent characteristics of any substance. For example, oxygen has the chemical property of supporting combustion; at the same time, oxygen can react chemically with hydrogen to produce water, which is its chemical property. Any substance is distinguished from other substances by its diverse chemical properties and chemical changes. In the field of chemistry, it is often necessary to sample, test and analyze chemical liquids.

[0003] In the prior art, common sampling equipment includes test tubes, droppers, beakers, etc., which cannot perform quantitative processing, prevent dripping, and protect the sampling equipment itself well during sampling. Therefore, a sampling device for chemical analysis and detection is needed to meet people's needs. Utility Model Content

[0004] The purpose of the utility model is to provide a sampling device for chemical analysis and detection, so as to solve the problems raised in the above background technology that quantitative processing, dripping prevention and protection of the sampling device itself cannot be well performed during sampling.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sampling device for chemical analysis and detection, comprising a protective shell and a straw, a movable door rotatably installed on the side of the protective shell, an observation window fixedly installed on the movable door, the straw movably installed in the protective shell, a needle fixedly installed on the bottom side of the straw, a positioning handle fixedly installed on the top, a sliding rod slidably installed in the straw, a rubber block fixedly installed on the bottom end of the sliding rod, and a pressing handle fixedly installed on the top, a movable sheet slidably installed on the side of the protective shell, a parallel clamp fixedly installed on the top of the movable sheet, and the parallel clamp buckled on the pressing handle.

[0006] Preferably, a fixing card and a buffer pad are fixedly installed in the protective shell, the fixing card is in contact with the positioning handle, and the pressing handle is in contact with the straw.

[0007] Preferably, a plurality of quantitative holes are opened at equal distances on the side of the movable piece, quantitative pins are inserted into the quantitative holes, a quantitative sleeve is fixedly installed on the side of the protective shell, the movable piece is slidably installed in the quantitative sleeve, and the quantitative pins are adapted to the quantitative sleeve.

[0008] Preferably, two limiting slide grooves are provided on one side of the movable piece close to the protective shell, and limiting slide rails are slidably installed in the two limiting slide grooves, and the limiting slide rails are fixedly installed on the side of the protective shell.

[0009] Preferably, a handle is fixedly mounted on one side of the protective shell.

[0010] Preferably, a two-lobed fixing sleeve is fixedly mounted on the bottom side of the protective shell, an internal threaded sleeve is threadedly mounted on the two-lobed fixing sleeve, and the needle is located inside the two-lobed fixing sleeve and the internal threaded sleeve.

[0011] Preferably, a metal ball is placed in the straw, and a movable magnet is slidably mounted on the outer side of the movable door.

[0012] The beneficial effects of the utility model are:

[0013] In the utility model, a straw and a needle are used to collect samples, and a protective shell is used to protect the straw therein, thereby ensuring the safety of the straw when in use and when not in use and preventing damage. The device limits the movement of the slide rod by the quantitative pin and the quantitative sleeve, thereby achieving the purpose of quantitative sampling. A metal ball is also configured as a means to prevent liquid leakage, making the device easy to operate.

[0014] In the present invention, the protective shell part and the straw part are independent of each other and can be disassembled in case of failure, so that the user can replace the damaged components and perform maintenance. The reasonable position of the device is convenient for the user to hold it in hand while observing the usage status of the straw. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a sampling device for chemical analysis and detection proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the top view of a sampling device for chemical analysis and detection proposed by the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of a sampling device for chemical analysis and detection proposed by the utility model;

[0018] Figure 4 The utility model is a schematic cross-sectional view of a sampling device for chemical analysis and detection.

[0019] In the figure: 100, protective shell; 101, movable door; 102, observation window; 103, fixed card; 104, buffer pad; 200, straw; 201, needle; 202, slide rod; 203, rubber block; 204, pressing handle; 205, positioning handle; 300, movable piece; 301, parallel clamp; 302, metering hole; 303, metering pin; 304, metering sleeve; 305, grip; 306, limiting slide groove; 307, limiting slide rail; 400, metal ball; 401, movable magnet; 500, two-petal fixed sleeve; 501, internal thread sleeve. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-4 A sampling device for chemical analysis and detection includes a protective shell 100 and a pipette 200. A movable door 101 is rotatably installed on the side of the protective shell 100, and an observation window 102 is fixedly installed on the movable door 101. The pipette 200 is movably installed in the protective shell 100. A needle 201 is fixedly installed on the bottom side of the pipette 200, and a positioning handle 205 is fixedly installed on the top. A slide rod 202 is slidably installed in the pipette 200, and a rubber block 203 is fixedly installed on the bottom end of the slide rod 202, and a pressing handle is fixedly installed on the top. 204, a movable piece 300 is slidably installed on the side of the protective shell 100, and a parallel clamp 301 is fixedly installed on the top of the movable piece 300. The parallel clamp 301 is buckled on the pressing handle 204, and a straw and a needle are used to collect samples. At the same time, the protective shell is used to protect the straw therein to ensure the safety of the straw when in use and when not in use, and to avoid damage. The device limits the movement of the slide rod through the quantitative pin and the quantitative sleeve to achieve the purpose of quantitative sampling. A metal ball is also configured as a means to prevent liquid leakage, making the device easy to operate.

[0022] In an optional embodiment: a fixed card 103 and a buffer pad 104 are fixedly installed in the protective shell 100, the fixed card 103 is in contact with the positioning handle 205, the pressing handle 204 is in contact with the straw 200, a plurality of quantitative holes 302 are opened at equal distances on the side of the movable sheet 300, and quantitative pins 303 are inserted in the quantitative holes 302, a quantitative sleeve 304 is fixedly installed on the side of the protective shell 100, the movable sheet 300 is slidably installed in the quantitative sleeve 304, and the quantitative pins 303 are adapted to the quantitative sleeve 304.

[0023] It should be noted that in order to ensure that the straw 200 can achieve the effect of quantitative sampling, the quantitative pin 303 can be inserted into the quantitative hole 302 at an appropriate position, and the movable distance of the movable piece 300 is limited by cooperating with the quantitative sleeve 304, so that the parallel clamp 301 drives the pressing handle 204, the slide rod 202, and the rubber block 203 to be limited in movement distance, so that only a fixed volume of sample can be extracted in the straw 200.

[0024] In an optional embodiment, two limiting slide grooves 306 are provided on one side of the movable piece 300 close to the protective shell 100 , and limiting slide rails 307 are slidably installed in the two limiting slide grooves 306 , and the limiting slide rails 307 are fixedly installed on the side of the protective shell 100 .

[0025] It should be noted that the movement of the movable piece 300 is restricted by the limiting sliding groove 306 and the limiting sliding rail 307 and can only move within a fixed range.

[0026] In an optional embodiment, a handle 305 is fixedly mounted on one side of the protective shell 100 .

[0027] It should be noted that the user holds the protective housing 100 in his hand via the handle 305 .

[0028] In an optional embodiment: a two-lobed fixing sleeve 500 is fixedly installed on the bottom side of the protective shell 100, an internal threaded sleeve 501 is threadedly installed on the two-lobed fixing sleeve 500, and the needle 201 is located inside the two-lobed fixing sleeve 500 and the internal threaded sleeve 501.

[0029] It should be noted that the needle 201 can be protected by the two-piece fixing sleeve 500 and the internal thread sleeve 501 when not in use.

[0030] In an optional embodiment, a metal ball 400 is placed in the straw 200 , and a movable magnet 401 is slidably installed on the outer side of the movable door 101 .

[0031] It should be noted that, in order to avoid liquid leakage, the metal ball 400 can block the needle 201 when no liquid is being absorbed, and the movable magnet 401 can be used to fix the position of the metal ball 400 when drainage is required.

[0032] Working principle of this utility model:

[0033] When using the device, the user needs to hold the protective shell 100 in his hand through the grip 305, and then use the thumb to push the movable piece 300 to slide on the protective shell 100. In order to ensure that the straw 200 can achieve the effect of quantitative sampling, the quantitative pin 303 can be inserted into the quantitative hole 302 at the appropriate position, and the quantitative sleeve 304 is used to limit the movable distance of the movable piece 300, thereby limiting the movable distance of the parallel clamp 301 driving the pressing handle 204, the slide rod 202, and the rubber block 203, so that they can only be moved within the straw 200. A fixed volume of sample is extracted from the container. The movement of the movable piece 300 is restricted by the limiting slide groove 306 and the limiting slide rail 307 and can only move within a fixed range. The straw 200 is fixed and buffered inside the movable door 101 using a fixed card 103 and a buffer pad 104. The needle 201 can be protected by the two-petal fixing sleeve 500 and the internal threaded sleeve 501 when not in use. In order to avoid leakage, the metal ball 400 can block the needle 201 when no liquid is being sucked up. When drainage is required, the movable magnet 401 can be used to fix the position of the metal ball 400.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sampling device for chemical analysis and detection, comprising a protective housing (100) and a pipette (200), characterized in that: The protective shell (100) is rotatably mounted on the side with a movable door (101), and an observation window (102) is fixedly mounted on the movable door (101). The straw (200) is movably mounted in the protective shell (100), and a needle (201) is fixedly mounted on the bottom side of the straw (200), and a positioning handle (205) is fixedly mounted on the top. A slide rod (202) is slidably mounted in the straw (200), and a rubber block (203) is fixedly mounted on the bottom end of the slide rod (202), and a pressing handle (204) is fixedly mounted on the top end. A movable sheet (300) is slidably mounted on the side of the protective shell (100), and a parallel clamp (301) is fixedly mounted on the top of the movable sheet (300), and the parallel clamp (301) is buckled on the pressing handle (204).

2. A sampling device for chemical analysis and detection according to claim 1, characterized in that: A fixing card (103) and a buffer pad (104) are fixedly installed in the protective shell (100); the fixing card (103) contacts the positioning handle (205), and the pressing handle (204) contacts the straw (200).

3. A sampling device for chemical analysis and detection according to claim 1, characterized in that: A plurality of quantitative holes (302) are provided at equal intervals on the side of the movable piece (300), and quantitative pins (303) are inserted into the quantitative holes (302). A quantitative sleeve (304) is fixedly installed on the side of the protective shell (100), and the movable piece (300) is slidably installed in the quantitative sleeve (304), and the quantitative pins (303) are adapted to the quantitative sleeve (304).

4. A sampling device for chemical analysis and detection according to claim 1, characterized in that: Two limiting slide grooves (306) are provided on one side of the movable plate (300) close to the protective shell (100), and limiting slide rails (307) are slidably installed in the two limiting slide grooves (306), and the limiting slide rails (307) are fixedly installed on the side of the protective shell (100).

5. A sampling device for chemical analysis and detection according to claim 1, characterized in that: A handle (305) is fixedly mounted on one side of the protective shell (100).

6. A sampling device for chemical analysis and detection according to claim 1, characterized in that: A two-lobed fixing sleeve (500) is fixedly mounted on the bottom side of the protective shell (100), an internal threaded sleeve (501) is threadedly mounted on the two-lobed fixing sleeve (500), and the needle (201) is located inside the two-lobed fixing sleeve (500) and the internal threaded sleeve (501).

7. A sampling device for chemical analysis and detection according to claim 1, characterized in that: A metal ball (400) is placed in the straw (200), and a movable magnet (401) is slidably mounted on the outer side of the movable door (101).

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