Positive-pressure solid-phase extraction instrument capable of conveniently adjusting gas flow

Abstract

The utility model discloses a positive pressure solid phase extraction instrument convenient to adjust gas flow, and relates to the technical field of positive pressure solid phase extraction instruments, the positive pressure solid phase extraction instrument comprises an extraction instrument, the surface of the extraction instrument is slidably provided with a placing rack, the inner part of the placing rack is movably provided with an adjustable bearing assembly, and the top of the placing rack is movably provided with a synchronous clamping assembly; the synchronous clamping assembly comprises a two-way screw frame. By arranging the synchronous clamping assembly, after products to be extracted are placed, all the products can be synchronously clamped by rotating the screw rod, so that the conditions that the efficiency of single-row clamping is low, and instability or test tube damage is easily caused due to different fixing forces are prevented; the front clamping rod and the rear clamping rod can be driven to move towards the middle part through rotation of the adjusting rod under the action of double groups of reverse threads, so that a test tube is clamped and fixed, and a limiting block can limit the moving range of the clamping rod to prevent the clamping rod from falling off.

Description

TECHNICAL FIELD

[0001] The utility model relates to positive pressure solid phase extraction appearance technical field, concretely relates to a positive pressure solid phase extraction appearance convenient for adjusting gas flow. BACKGROUND

[0002] Solid phase extraction equipment can be divided into automatic solid phase extraction appearance and manual solid phase extraction device, but the existing positive pressure solid phase extraction appearance needs to replace different devices to carry out extraction when installing the extraction column of different diameters, the time of replacing the device is wasted, and the work efficiency is reduced.

[0003] In the prior art, a patent document with publication number CN210543499U is proposed to solve the above technical problems. The technical solution disclosed in the patent document is as follows: a positive pressure solid phase extraction appearance convenient for adjusting gas flow, comprising an extraction appearance body, a support plate is installed in the middle of the extraction appearance body.

[0004] In order to solve the problem that different devices need to be replaced for extraction when installing the extraction column of different diameters, the time of replacing the device is wasted, and the work efficiency is reduced. The prior art uses the mode of setting fixed components and adjusting components to process, but each group of fixed components needs to be adjusted separately, which leads to slow fixing efficiency and uneven fixing force. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a positive pressure solid phase extraction appearance convenient for adjusting gas flow to solve the problems raised in the background art.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme:

[0007] A positive pressure solid phase extraction appearance convenient for adjusting gas flow, comprising an extraction appearance, a placing rack is slidably installed on the surface of the extraction appearance, an adjustable receiving assembly is movably installed in the interior of the placing rack, and a synchronous clamping assembly is movably installed on the top of the placing rack.

[0008] The synchronous clamping assembly comprises a bidirectional screw rod frame, a limiting slide rod frame, a front clamping rod and a rear clamping rod.

[0009] The utility model technical scheme is further improved in that the extraction appearance comprises an extraction appearance base, an extraction appearance host is fixedly installed on the surface of the extraction appearance base, and an adjustable airflow extraction piece is fixedly installed at the bottom of the extraction appearance host.

[0010] The utility model technical scheme is further improved in that the placing rack comprises a side slide plate slidably installed on the surface of the extraction appearance base, a main limiting table is fixedly installed on the top surface of the side slide plate, and a secondary limiting plate is fixedly installed on the inner surface of the side slide plate.

[0011] The further improvement of the utility model technical scheme lies in: the adjustable receiving assembly includes the screw rod frame fixedly installed on the front face of the right slide plate, the slide rod frame is fixedly installed on the surface of the left slide plate, the screw rod surface of the screw rod frame is threadedly installed with the receiving plate, the receiving plate is matched and installed through the screw rod frame and the slide rod frame, the height of the test tube can be adjusted, the shorter test tube top cannot contact the fixing assembly in the adaptive mode of the existing adjusting support plate, so the test tube cannot be fixed.

[0012] The further improvement of the utility model technical scheme lies in: the bidirectional screw rod frame is fixedly installed on the bottom face of the main limiting table, the limiting slide rod frame is fixedly installed on the bottom face of the main limiting table away from the bidirectional screw rod frame, the front clamping rod and the rear clamping rod are threadedly installed on the screw rod surface of the bidirectional screw rod frame, the synchronous clamping assembly is arranged, synchronous clamping of all can be realized through the rotating screw after the product to be extracted is placed, the single row clamping efficiency is slow, the fixing force is different, and the unstable or test tube damage condition can be prevented.

[0013] The further improvement of the utility model technical scheme lies in: the bidirectional screw rod frame includes the adjusting frame body fixedly installed on the bottom face of the main limiting table, the adjusting rod surface of the adjusting frame body is provided with double sets of reverse threads, the adjusting rod surface of the adjusting frame body close to the double sets of reverse threads is fixedly installed with the limiting block, the bidirectional screw rod frame is arranged, the adjusting rod can be rotated and driven to move the front and rear clamping rods to the middle under the action of the double sets of reverse threads, so that the test tube is clamped and fixed, and the limiting block can limit the movement range of the clamping rod, so that the test tube is clamped and fixed.

[0014] The further improvement of the utility model technical scheme lies in: the receiving plate and the slide rod of the slide rod frame are slidably connected, the front clamping rod and the rear clamping rod are slidably connected with the slide rod of the limiting slide rod frame, the clamping rod can be supported while moving through the sliding connection.

[0015] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0016] The utility model provides a kind of positive pressure solid phase extraction instrument of gas flow is adjusted easily, and through the screw rod frame cooperation slide rod frame is equipped with receiving plate, it can be adjusted according to the height of test tube, prevent the adaptive mode of the existing adjusting support plate and appear shorter test tube top cannot contact fixed assembly, so it cannot be fixed.

[0017] The utility model provides a positive pressure solid phase extraction appearance convenient for adjusting gas flow, through setting up synchronous clamping subassembly, can realize after placing good to be extracted product, through rotating screw rod to all synchronous clamping, prevented single row and fixed force different easy to appear unstable or test tube damage condition of clamping efficiency slow.

[0018] The utility model provides a positive pressure solid phase extraction appearance convenient for adjusting gas flow, through setting up two -way screw rod frame, can pass through adjusting lever rotation and under the action of double group reverse thread, realize driving front and rear clamping rod to the middle part removal, thereby realize clamping fixed to test tube, and spacing block can limit the movement range of clamping rod, prevent its appearance situation of falling off. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is structure schematic drawing of the utility model;

[0020] Figure 2 It is structure schematic drawing of the utility model's extraction appearance;

[0021] Figure 3 It is structure schematic drawing of the utility model's placing rack and adjustable receiving subassembly;

[0022] Figure 4 It is structure schematic drawing of the utility model's synchronous clamping subassembly;

[0023] Figure 5 It is structure schematic drawing of the utility model Figure 4 's A place amplification structure schematic drawing.

[0024] In the drawing: 1, extraction appearance; 2, placing rack; 3, adjustable receiving subassembly; 4, synchronous clamping subassembly; 11, extraction appearance base; 12, extraction appearance host computer; 13, adjustable gas flow extraction piece; 21, side slide plate; 22, main limiting table; 23, vice limiting plate; 31, screw rod frame; 32, slide bar frame; 33, receiving plate; 41, two -way screw rod frame; 411, adjusting frame body; 412, double group reverse thread; 413, spacing block; 42, spacing slide bar frame; 43, front clamping rod; 44, rear clamping rod. DETAILED DESCRIPTION

[0025] The utility model will be further explained in detail in connection with example: Example

[0026] For example, Figures 1-5As shown, the utility model provides a kind of positive pressure solid phase extraction instrument of gas flow is easily adjusted, including extraction instrument 1, extraction instrument 1 includes extraction instrument base 11, the surface of extraction instrument base 11 is fixedly installed with extraction instrument host 12, the bottom of extraction instrument host 12 is fixedly installed with adjustable air current extraction piece 13, the surface of extraction instrument 1 is slidably installed with rack 2, adjustable receiving assembly 3 is movably installed in the inside of rack 2, and synchronous clamping assembly 4 is movably installed at the top of rack 2;Synchronous clamping assembly 4 includes bidirectional screw rod frame 41, limiting slide bar frame 42, front clamping rod 43 and rear clamping rod 44, by setting synchronous clamping assembly 4, after placing the product to be extracted, synchronous clamping to all is carried out by rotation, prevent the efficiency of single row clamping slow and the fixed force different and unstable or test tube damage condition of easy occurrence. EMBODIMENT

[0027] As Figures 1-5 As shown, on the basis of embodiment 1, the utility model provides a kind of technical scheme: preferably, rack 2 includes side slide plate 21 slidably installed on the surface of extraction instrument base 11, the top surface of side slide plate 21 is fixedly installed with main limiting table 22, the inner surface of side slide plate 21 is fixedly installed with auxiliary limiting plate 23, adjustable receiving assembly 3 includes screw rod frame 31 fixedly installed on the front of right side slide plate 21, the surface of left side slide plate 21 is fixedly installed with slide bar frame 32, and the screw surface of screw rod frame 31 is threadedly installed with receiving plate 33, by using screw rod frame 31 cooperation slide bar frame 32 is equipped with receiving plate 33, it can be adjusted according to the height of test tube, prevent the existing adjusting support plate and appear the top of shorter test tube cannot contact fixed component, so as not to be fixed. EMBODIMENT

[0028] As Figures 1-5As shown, on the basis of embodiments 1-2, the utility model provides a technical scheme: preferably, the bidirectional screw rod frame 41 is fixedly installed on the bottom surface of the main limiting table 22, the limiting slide rod frame 42 is fixedly installed on the bottom surface of the main limiting table 22 away from the bidirectional screw rod frame 41, the front clamping rod 43 and the rear clamping rod 44 are screw -threaded on the screw rod surface of the bidirectional screw rod frame 41, the bidirectional screw rod frame 41 includes the adjusting frame body 411 fixedly installed on the bottom surface of the main limiting table 22, the adjusting rod surface of the adjusting frame body 411 is provided with two sets of reverse threads 412, the surface of the adjusting rod of the adjusting frame body 411 close to the two sets of reverse threads 412 is fixedly installed with the limiting block 413, the bearing plate 33 and the slide rod of the slide rod frame 32 are slidably connected, the front clamping rod 43 and the rear clamping rod 44 and the slide rod of the limiting slide rod frame 42 are slidably connected, through setting bidirectional screw rod frame 41, can pass through the adjusting rod rotation and under the action of two sets of reverse threads 412, realize driving the front and rear clamping rod to the middle part removal, to realize the clamping fixed of test tube, and limiting block 413 can limit the moving range of clamping rod, prevent its appearance and fall off the situation.

[0029] The working principle of the positive pressure solid phase extraction instrument facilitating gas flow adjustment will be described below.

[0030] As Figures 1-5 As shown, during the use of the positive pressure solid phase extraction instrument, according to the length of the test tube, the screw rod on the screw rod frame 31 is rotated and cooperated with the slide rod frame 32 to make the bearing plate 33 move, the product test tube to be extracted is inserted into the main limiting table 22 and the auxiliary limiting plate 23 and supported by the bearing plate 33, the screw rod on the bidirectional screw rod frame 41 is rotated to make the three groups of front clamping rods 43 and rear clamping rods 44 move synchronously, so that the test tube can be contacted and clamped and fixed, after the placement and fixation are completed, the extraction instrument main body 12 can be started to cooperate with the adjustable gas flow extraction piece 13 to extract, and when the gas flow needs to be adjusted, the internal adjusting ball can be rotated to adjust the opening area of the pipeline.

[0031] The above has made a detailed description of the utility model in general, but on the basis of the utility model, some modifications or improvements can be made, which is obvious to the general technical personnel in the technical field. Therefore, the modifications or improvements without departing from the spirit of the utility model idea are within the protection scope of the utility model.

Claims

1. A positive pressure solid phase extraction instrument facilitating adjustment of gas flow comprising an extraction instrument (1) characterised in that: The surface of the extractor (1) is slidably installed with a rack (2), the inside of the rack (2) is movably installed with an adjustable receiving assembly (3), the top of the rack (2) is movably installed with a synchronous clamping assembly (4). The synchronous clamping assembly (4) comprises a bidirectional screw rod frame (41), a limiting slide rod frame (42), a front clamping rod (43) and a rear clamping rod (44).

2. A positive pressure solid phase extraction instrument for facilitating adjustment of gas flow according to claim 1, wherein: The extractor (1) comprises an extractor base (11), the surface of the extractor base (11) is fixedly installed with an extractor host (12), the bottom of the extractor host (12) is fixedly installed with an adjustable airflow extraction piece (13).

3. A positive pressure solid phase extraction instrument for facilitating adjustment of gas flow according to claim 2, wherein: The rack (2) comprises a side slide plate (21) slidably installed on the surface of the extractor base (11), the top surface of the side slide plate (21) is fixedly installed with a main limiting table (22), the inner surface of the side slide plate (21) is fixedly installed with a vice limiting plate (23).

4. A positive pressure solid phase extraction instrument for facilitating adjustment of gas flow according to claim 3, wherein: The adjustable receiving assembly (3) comprises a screw rod frame (31) fixedly installed on the front of the right side slide plate (21), the surface of the left side slide plate (21) is fixedly installed with a slide rod frame (32), the screw rod surface of the screw rod frame (31) is threadedly installed with a receiving plate (33).

5. A positive pressure solid phase extraction instrument for facilitating adjustment of gas flow according to claim 3, wherein: The bidirectional screw rod frame (41) is fixedly installed on the bottom surface of the main limiting table (22), the limiting slide rod frame (42) is fixedly installed on the bottom surface of the main limiting table (22) away from the bidirectional screw rod frame (41), the front clamping rod (43) and the rear clamping rod (44) are threadedly installed on the screw rod surface of the bidirectional screw rod frame (41).

6. A positive pressure solid phase extraction instrument for facilitating adjustment of gas flow according to claim 3, wherein: The bidirectional screw rod frame (41) comprises an adjusting frame body (411) fixedly installed on the bottom surface of the main limiting table (22), the adjusting rod surface of the adjusting frame body (411) is provided with a double set of reverse threads (412), the adjusting rod surface of the adjusting frame body (411) close to the double set of reverse threads (412) is fixedly installed with a limiting block (413).

7. A positive pressure solid phase extraction instrument for facilitating adjustment of gas flow according to claim 4, wherein: The receiving plate (33) and the slide rod of the slide rod frame (32) are slidably connected, the front clamping rod (43) and the rear clamping rod (44) and the slide rod of the limiting slide rod frame (42) are slidably connected.

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