A portable automatic sampler

Abstract

The utility model discloses a portable automatic sampler, including sampler main part, the sampler main part includes fixed box, sleeve and sample tube, the sleeve bottom detachable connection with fixed box top, the sleeve inside integration has the plug -in frame and be used for maintaining the elastic component of plug -in frame horizontal position, the plug -in frame open end is provided with the slope, just the plug -in frame open end is inserted in the sample tube outside through the combination groove. In this application, the fixed box and sleeve are fixed through the screwing of connecting ring and fixed box top, the sample tube is inserted in the combination groove outside the sample tube under the action of spring through the sleeve and the insertion in fixed box top, to this realizes the vertical fixed of sample tube, and the independent dismounting of sample tube can be realized through the horizontal pull -out plug -in frame and make it separate from the combination groove, to this guarantee the convenience of independent dismounting of sample tube, and the stable of sample tube vertical positioning is guaranteed through the cooperation of plug -in frame and combination groove.

Description

Technical Field

[0001] This utility model relates to the field of chromatography experimental equipment technology, and in particular to a convenient automatic sampler. Background Technology

[0002] An autosampler is a core auxiliary component of a chromatography system. Its main function is to replace manual operation and automatically complete the entire process of sample extraction, quantification, and injection into the chromatographic column.

[0003] Chinese Patent Publication No. CN217688758U, published on 20221028, discloses an automatic sampler for chromatography experiments, including a fixed sleeve and a chromatograph mounting box. The bottom of the fixed sleeve is fixedly connected to a threaded sleeve, and the upper surface of the chromatograph mounting box has a threaded ring that mates with the threaded sleeve. The fixed sleeve is threaded to the threaded ring and fixed to the upper surface of the chromatograph mounting box through the threaded sleeve. An adjustable clamping mechanism clamps and fixes the sampler body inside the fixed sleeve.

[0004] Existing autosamplers use a spring to push a limiting block against the outside of the injection tube to achieve vertical positioning of the injection tube. In practice, the fixation of the limiting block and the injection tube relies entirely on friction. The positioning stability of the injection tube can be further optimized. Therefore, there is an urgent need to propose a corresponding convenient autosampler to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a convenient automatic sampler to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A portable automatic sampler includes a sampler body, which includes a fixed box, a sleeve and a sample injection tube. The bottom of the sleeve is detachably connected to the top of the fixed box. The sleeve integrates a bracket and an elastic component for maintaining the horizontal position of the bracket. The open end of the bracket is provided with an inclined surface, and the open end of the bracket is inserted into the outside of the sample injection tube through a connecting groove.

[0008] Preferably, the outer side of the sleeve integrates a limiting frame and a connecting part for supporting the limiting frame. The limiting frame has an L-shaped structure, and the insert has a mating groove 1 and a mating groove 2 that fit with the limiting frame.

[0009] Preferably, the connecting part includes a bracket on the outer wall of the sleeve, and a damping pad layer is fixedly connected to the inner wall of the bracket.

[0010] Preferably, the insert holder has an integrally formed convex ring on the side away from the injection tube.

[0011] Preferably, the bottom of the sleeve is fixedly connected to a connecting ring, which is screwed onto the inner surface of the top of the fixed box.

[0012] Preferably, the elastic component includes a side piece fixedly connected to the outer wall of the insert, and a spring fixedly connected between the side piece and the inner wall of the sleeve.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this application, the fixing box and the sleeve are fixed by screwing the connecting ring with the top of the fixing box. The injection tube is passed through the sleeve and inserted into the top of the fixing box. The insert is inserted into the matching groove on the outside of the injection tube under the action of the spring, thereby achieving vertical fixation of the injection tube. Subsequently, the injection tube can be independently disassembled and assembled by pulling the insert horizontally to make it detach from the matching groove. This ensures the convenience of independent disassembly and assembly of the injection tube, while the cooperation between the insert and the matching groove ensures the stability of the vertical positioning of the injection tube.

[0015] 2. In this application, when the insert is inserted into the mating groove, the lower limiting frame engages with the mating groove two, thereby helping to maintain a stable engagement between the insert and the mating groove. After the insert is pulled to separate from the mating groove, the engagement between the limiting frame and the mating groove one can maintain the separation of the insert and the mating groove, so that the operator can separate multiple sets of inserts into the injection tube, thereby further improving the convenience of using the autosampler. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0017] Figure 2 A schematic diagram of a sleeve structure according to an embodiment of the present utility model is shown;

[0018] Figure 3 A schematic diagram of the insert structure provided according to an embodiment of the present utility model is shown;

[0019] Figure 4 A schematic diagram of a spring structure according to an embodiment of the present invention is shown.

[0020] Legend:

[0021] 1. Injector body; 101. Fixing box; 102. Sleeve; 103. Injection tube; 2. Limiting frame; 3. Bracket; 4. Insertion bracket; 5. Connecting ring; 6. Fitting groove; 7. Protruding ring; 8. Side plate; 9. Spring; 10. Fitting groove one; 11. Fitting groove two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A portable automatic sampler includes a sampler body 1, which includes a fixed box 101, a sleeve 102 and a sample injection tube 103. The bottom of the sleeve 102 is detachably connected to the top of the fixed box 101. The sleeve 102 integrates a bracket 4 and an elastic component for maintaining the horizontal position of the bracket 4. The open end of the bracket 4 is provided with a slope, and the open end of the bracket 4 is inserted into the outside of the sample injection tube 103 through a connecting groove 6.

[0025] The fixing box 101 and the sleeve 102 are fixed by screwing the connecting ring 5 into the top of the fixing box 101. The sample inlet tube 103 is passed through the sleeve 102 and inserted into the top of the fixing box 101. The insert bracket 4 is inserted into the connecting groove 6 on the outside of the sample inlet tube 103 under the action of the spring 9, thereby realizing the vertical fixation of the sample inlet tube 103. Subsequently, the sample inlet tube 103 can be independently disassembled and assembled by pulling the insert bracket 4 horizontally out to disassemble it from the connecting groove 6. This ensures the convenience of independent disassembly and assembly of the sample inlet tube 103, while the cooperation between the insert bracket 4 and the connecting groove 6 ensures the stability of the vertical positioning of the sample inlet tube 103.

[0026] Specifically, such as Figure 2 and Figure 4 As shown, the outer side of the sleeve 102 integrates a limiting frame 2 and a connecting part for supporting the limiting frame 2. The limiting frame 2 has an L-shaped structure. The insert 4 has a mating groove 10 and a mating groove 21 that fit with the limiting frame 2. The connecting part includes a bracket 3 on the outer wall of the sleeve 102. A damping pad is fixedly connected to the inner wall of the bracket 3. When the insert 4 is inserted into the mating groove 6, the limiting frame 2 is lowered to engage with the mating groove 21, which helps to maintain the stable engagement state between the insert 4 and the mating groove 6. After the insert 4 is pulled to separate from the mating groove 6, the engagement of the limiting frame 2 and the mating groove 10 can maintain the separation state between the insert 4 and the mating groove 6, so that the operator can separate multiple sets of inserts 4 from the injection tube 103, thereby further improving the convenience of using the autosampler. The side of the insert 4 away from the injection tube 103 has an integrally formed convex ring 7, which facilitates manual pushing and pulling of the insert 4.

[0027] Specifically, such as Figure 2 and Figure 3As shown, the connecting ring 5 is fixedly connected to the bottom of the sleeve 102. The connecting ring 5 is screwed to the inner surface of the top of the fixed box 101 to ensure convenient disassembly and assembly of the sleeve 102 and the fixed box 101. The elastic component includes a side piece 8 fixedly connected to the outer surface of the insert 4, and a spring 9 fixedly connected between the side piece 8 and the inner surface of the sleeve 102 to maintain the connection state between the insert 4 and the connecting groove 6.

[0028] Working principle: The fixing box 101 and the sleeve 102 are fixed by screwing the connecting ring 5 onto the top of the fixing box 101. The sample inlet tube 103 is passed through the sleeve 102 and inserted into the top of the fixing box 101. The insert bracket 4 is inserted into the connecting groove 6 on the outside of the sample inlet tube 103 under the action of the spring 9, thus achieving vertical fixation of the sample inlet tube 103. Subsequently, the sample inlet tube 103 can be independently disassembled and assembled by pulling the insert bracket 4 horizontally out of the connecting groove 6. This ensures the convenience of independent disassembly and assembly of the sample inlet tube 103. The cooperation between the insert 4 and the connecting groove 6 ensures the stability of the vertical positioning of the sample injection tube 103. When the insert 4 is inserted into the connecting groove 6, the lower limit frame 2 is lowered to engage with the second connecting groove 11, which helps to maintain the stable engagement state between the insert 4 and the connecting groove 6. After the insert 4 is pulled to separate from the connecting groove 6, the engagement between the limit frame 2 and the first connecting groove 10 can maintain the separation state between the insert 4 and the connecting groove 6, so that the operator can separate multiple sets of inserts 4 from the sample injection tube 103, thereby further improving the convenience of using the autosampler.

[0029] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A portable automatic sampler, comprising a sampler body (1), wherein the sampler body (1) includes a fixing box (101), a sleeve (102), and a sample inlet tube (103), characterized in that, The bottom of the sleeve (102) is detachably connected to the top of the fixed box (101). The sleeve (102) integrates a bracket (4) and an elastic component for maintaining the horizontal position of the bracket (4). The open end of the bracket (4) is provided with an inclined surface, and the open end of the bracket (4) is inserted into the outside of the injection tube (103) through a connecting groove (6).

2. The portable automatic sampler according to claim 1, characterized in that, The sleeve (102) integrates a limiting frame (2) and a connecting part for supporting the limiting frame (2) on the outside. The limiting frame (2) has an L-shaped structure. The insert (4) has a first mating groove (10) and a second mating groove (11) that fit with the limiting frame (2) inside.

3. A portable automatic sampler according to claim 2, characterized in that, The connecting part includes a bracket (3) on the outer wall of the sleeve (102), and a damping pad layer is fixedly connected to the inner wall of the bracket (3).

4. A portable automatic sampler according to claim 3, characterized in that, The insert (4) has an integrally formed convex ring (7) on the side away from the injection tube (103).

5. A portable automatic sampler according to claim 4, characterized in that, The connecting ring (5) is fixedly connected to the bottom of the sleeve (102), and the connecting ring (5) is screwed into the inner surface of the top of the fixed box (101).

6. A portable automatic sampler according to claim 5, characterized in that, The elastic component includes a side piece (8) fixedly connected to the outer wall of the insert (4), and a spring (9) fixedly connected between the side piece (8) and the inner wall of the sleeve (102).

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