Solvent desorption auxiliary device

Abstract

The utility model belongs to the field of solvent desorption, in particular relates to a solvent desorption auxiliary device, and aims to solve the problems that when a solid adsorbent to be desorbed and a desorption solution are mixed in the prior art, a hand-cranking mode is usually used, so that the liquid is possibly leaked, and when the detection quantity is large, the manual hand-cranking mode is low in efficiency, and the detection efficiency is reduced. According to the technical scheme, the device comprises a base, a second motor and a shaking assembly, an L-shaped connecting plate is fixedly connected to the upper surface of the base, a rotating column is installed between the base and the connecting plate, a storage barrel is fixedly connected to the top of the rotating column, a plurality of storage grooves are formed in the storage barrel, and adsorption pipes are placed in the storage grooves; according to the device, the gear drives the tooth column to transmit, and when the tooth column moves up and down, the tooth column is always meshed with the gear, so that the storage barrel is conveniently driven to rotate left and right and shake up and down at the same time, and a desorption solution and a solid adsorbent in the adsorption pipe are conveniently mixed.

Description

Technical Field

[0001] The utility model relates to the technical field of solvent desorption, in particular to a solvent desorption auxiliary device. Background Art

[0002] Solvent desorption-gas chromatography is widely used in the detection of volatile organic pollutants in ambient atmosphere, indoor air and workplace air, and is widely used in daily detection work. For example, "Determination of Toxic Substances in Workplace Air Part 66: Benzene, Toluene, Xylene and Ethylbenzene" (GBZ / T300.66-2017) stipulates the solvent desorption-gas chromatography method for the detection of benzene, toluene, xylene and ethylbenzene in workplace air.

[0003] At present, the common method is to pour the solid adsorbent to be desorbed (such as activated carbon particles and silica gel particles) into a solvent desorption bottle, use a pipette to add a certain amount of desorption liquid into the desorption bottle, shake it and desorb it for a certain period of time, take out the desorption liquid and use gas chromatography to determine the content;

[0004] However, when the solid adsorbent to be desorbed and the desorption liquid are mixed, a manual shaking method is usually used, which may cause liquid leakage. When the number of tests is large, the manual shaking method is inefficient, which reduces the detection efficiency. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that when the solid adsorbent to be desorbed and the desorption liquid are mixed, a manual shaking method is usually used, which may cause liquid leakage. When the number of tests is large, the manual shaking method is inefficient, which reduces the detection efficiency. A solvent desorption auxiliary device is proposed to solve the problem that

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The solvent desorption auxiliary device comprises a base, a second motor and a shaking assembly, wherein an L-shaped connecting plate is fixedly connected to the upper surface of the base, a rotating column is installed between the base and the connecting plate, a storage barrel is fixedly connected to the top of the rotating column, a plurality of storage slots are arranged inside the storage barrel, and adsorption tubes are placed in each of the storage slots;

[0008] The second motor is fixedly connected to one side of the connecting plate, one end of the output shaft of the second motor is fixedly connected to a gear, the circumference of the rotating column is fixedly connected to a tooth column, and the tooth column is meshed with the gear to drive the storage bucket to rotate;

[0009] The shaking assembly is arranged on the upper surface of the base, and the shaking assembly is used to drive the storage bucket to shake up and down.

[0010] In a possible design, the shaking assembly includes a first motor and a rotating ring, the rotating ring is rotatably connected to the circumference of a rotating column, the first motor is fixedly connected to the upper surface of the base, one end of the output shaft of the first motor is fixedly connected to a rotating sleeve, a connecting frame is provided on one side of the rotating sleeve, the circumference of the rotating ring is fixedly connected to two symmetrically arranged fixed columns, and the connecting frame is rotatably connected to the two fixed columns.

[0011] In a possible design, a through sliding groove is provided on the surface of the rotating sleeve, a sliding block is fixedly connected to one end of the connecting frame, the sliding block is slidably connected in the sliding groove, a sliding sleeve is slidably connected to the upper surface of the connecting plate, and the sliding sleeve (18) is rotatably connected to the rotating column.

[0012] In a possible design, a bucket cover is provided on the top of the storage bucket, and the bucket cover is connected to the storage bucket by a snap-fit ​​connection.

[0013] In a possible design, sponges are bonded inside the storage tanks.

[0014] In a possible design, a bearing is provided between the rotating column and the connecting plate.

[0015] In the present application, when in use, the solid adsorbent to be desorbed is poured into the adsorption tube, a certain amount of desorption liquid is added to the adsorption tube using a pipette, the tube plug is compressed, and the tube is placed in the storage tank, and the bucket cover is covered on the storage bucket and the buckle is fastened to fix the adsorption tube to prevent the liquid in the adsorption tube from leaking when shaking;

[0016] The first motor drives the rotating sleeve to rotate a certain angle, so that the rotating sleeve drives the connecting frame to rotate, the slider at one end of the connecting frame slides in the slide slot, the connecting frame drives the two fixed columns to move, and the two fixed columns further drive the rotating ring to move up and down, so as to drive the rotating column to move up and down;

[0017] At the same time, the second motor drives the gear to rotate, and the gear drives the gear column to transmit. When the gear column moves up and down, the gear column is always engaged with the gear, which is convenient for driving the storage barrel to rotate left and right and shake up and down at the same time, so as to mix the desorption liquid and solid adsorbent in the adsorption tube, and can efficiently perform auxiliary experiments on solvent desorption and improve the efficiency of solvent analysis.

[0018] In the utility model, the solvent desorption auxiliary device is provided with a storage barrel, the adsorption tube is placed in the storage tank, the barrel cover is covered on the storage barrel and the buckle is fastened to fix the adsorption tube, so as to prevent the liquid in the adsorption tube from leaking when shaking;

[0019] In the utility model, the solvent desorption auxiliary device is provided with gears, and the gears drive the toothed column to transmit. When the toothed column moves up and down, the toothed column is always engaged with the gear, so as to drive the storage barrel to rotate left and right and shake up and down at the same time, so as to mix the desorption liquid and the solid adsorbent in the adsorption tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the solvent desorption auxiliary device proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the exploded structure of the shaking component of the solvent desorption auxiliary device proposed in the utility model;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the storage barrel of the solvent desorption auxiliary device proposed by the utility model.

[0023] In the figure: 1. base; 2. connecting plate; 3. first motor; 4. rotating column; 5. gear column; 6. gear; 7. second motor; 8. storage bucket; 9. bucket cover; 10. rotating ring; 11. fixed column; 12. connecting frame; 13. rotating sleeve; 14. slider; 15. slide groove; 16. storage groove; 17. adsorption tube; 18. sliding sleeve. DETAILED DESCRIPTION

[0024] 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 of the embodiments.

[0025] Example 1

[0026] Reference Figure 1-Figure 3 , an auxiliary device, comprising: a base 1, a second motor 7 and a shaking assembly, an L-shaped connecting plate 2 is fixedly connected to the upper surface of the base 1, a rotating column 4 is installed between the base 1 and the connecting plate 2, a storage bucket 8 is fixedly connected to the top of the rotating column 4, a plurality of storage slots 16 are arranged inside the storage bucket 8, and adsorption tubes 17 are placed in each of the storage slots 16;

[0027] The second motor 7 is fixedly connected to one side of the connecting plate 2, one end of the output shaft of the second motor 7 is fixedly connected to a gear 6, the circumference of the rotating column 4 is fixedly connected to a tooth column 5, the tooth column 5 is meshed with the gear 6 to drive the storage bucket 8 to rotate;

[0028] The shaking assembly is arranged on the upper surface of the base 1, and is used to drive the storage bucket 8 to shake up and down;

[0029] The shaking assembly includes a first motor 3 and a rotating ring 10, the rotating ring 10 is rotatably connected to the circumference of the rotating column 4, the first motor 3 is fixedly connected to the upper surface of the base 1, one end of the output shaft of the first motor 3 is fixedly connected to a rotating sleeve 13, one side of the rotating sleeve 13 is provided with a connecting frame 12, the circumference of the rotating ring 10 is fixedly connected to two symmetrically arranged fixed columns 11, and the connecting frame 12 is rotatably connected to the two fixed columns 11;

[0030] The surface of the rotating sleeve 13 is provided with a through slide groove 15, one end of the connecting frame 12 is fixedly connected with a slider 14, the slider 14 is slidably connected in the slide groove 15, the upper surface of the connecting plate 2 is slidably connected with a sliding sleeve 18, and the sliding sleeve 18 is rotatably connected with the rotating column 4;

[0031] In the above technical solution, the solid adsorbent to be desorbed is poured into the adsorption tube 17, a certain amount of desorption liquid is added to the adsorption tube 17 using a pipette, the tube plug is pressed and placed in the storage tank 16, the first motor 3 drives the rotating sleeve 13 to rotate a certain angle, so that the rotating sleeve 13 drives the connecting frame 12 to rotate, the slider 14 at one end of the connecting frame 12 slides in the slide groove 15, the connecting frame 12 drives the two fixed columns 11 to move, and the two fixed columns 11 further drive the rotating ring 10 to move up and down, so as to drive the rotating column 4 to move up and down;

[0032] At the same time, the second motor 7 drives the gear 6 to rotate, and the gear 6 drives the gear column 5 to transmit. When the gear column 5 moves up and down, the gear column 5 is always engaged with the gear 6, which is convenient for driving the storage bucket 8 to rotate left and right and shake up and down at the same time, so as to mix the desorption liquid and solid adsorbent in the adsorption tube 17, and can efficiently perform auxiliary experiments on solvent desorption and improve the efficiency of solvent analysis.

[0033] The present application can be used for solvent desorption, and can also be used in other fields applicable to the present application.

[0034] Example 2

[0035] refer to Figure 1-Figure 3 , based on the improvement of Example 1: the solvent desorption auxiliary device is used in the field of solvent desorption, the top of the storage barrel 8 is provided with a barrel cover 9, and the barrel cover 9 and the storage barrel 8 are connected by a buckle;

[0036] In the above technical solution, the bucket cover 9 is covered on the storage bucket 8 and the buckle is fastened to fix the adsorption tube 17 to prevent the liquid in the adsorption tube 17 from leaking when shaking.

[0037] refer to Figure 3 , the interior of the storage tank 16 is bonded with sponge;

[0038] In the above technical solution, the sponge can prevent a gap from being generated between the adsorption tube 17 and the storage tank 16, thereby preventing shaking.

[0039] refer to Figure 1 , a bearing is provided between the rotating column 4 and the connecting plate 2;

[0040] In the above technical solution, the bearing can improve the stability of the rotating column 4 during rotation.

[0041] However, as is well known to those skilled in the art, the working principles and wiring methods of the first motor 3 and the second motor 7 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A solvent desorption auxiliary device, characterized in that: include: A base (1), the upper surface of the base (1) being fixedly connected to an L-shaped connecting plate (2), a rotating column (4) being installed between the base (1) and the connecting plate (2), a storage bucket (8) being fixedly connected to the top of the rotating column (4), a plurality of storage slots (16) being arranged inside the storage bucket (8), and adsorption tubes (17) being placed in each of the storage slots (16); A second motor (7), the second motor (7) is fixedly connected to one side of the connecting plate (2), one end of the output shaft of the second motor (7) is fixedly connected to a gear (6), the circumference of the rotating column (4) is fixedly connected to a tooth column (5), the tooth column (5) and the gear (6) are meshed to drive the storage bucket (8) to rotate; A shaking assembly is arranged on the upper surface of the base (1), and is used to drive the storage bucket (8) to shake up and down.

2. The solvent desorption auxiliary device according to claim 1, characterized in that: The shaking assembly comprises a first motor (3) and a rotating ring (10), wherein the rotating ring (10) is rotatably connected to the circumference of a rotating column (4), the first motor (3) is fixedly connected to the upper surface of the base (1), one end of the output shaft of the first motor (3) is fixedly connected to a rotating sleeve (13), one side of the rotating sleeve (13) is provided with a connecting frame (12), the circumference of the rotating ring (10) is fixedly connected to two symmetrically arranged fixed columns (11), and the connecting frame (12) is rotatably connected to the two fixed columns (11).

3. The solvent desorption auxiliary device according to claim 2, characterized in that: The surface of the rotating sleeve (13) is provided with a through sliding groove (15); one end of the connecting frame (12) is fixedly connected with a sliding block (14); the sliding block (14) is slidably connected in the sliding groove (15); the upper surface of the connecting plate (2) is slidably connected with a sliding sleeve (18); the sliding sleeve (18) is rotatably connected to the rotating column (4).

4. The solvent desorption auxiliary device according to claim 1, characterized in that: A barrel cover (9) is provided on the top of the storage barrel (8), and the barrel cover (9) and the storage barrel (8) are connected by a buckle.

5. The solvent desorption auxiliary device according to claim 1, characterized in that: The interior of the storage tank (16) is bonded with sponge.

6. The solvent desorption auxiliary device according to claim 1, characterized in that: A bearing is provided between the rotating column (4) and the connecting plate (2).

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