Sample support for gas phase mass spectrometer

Abstract

The sample support for the gas phase mass spectrometer comprises an installation box, a first motor is fixedly installed on the right side of an inner cavity of the installation box, a multidirectional threaded rod is fixedly installed on an output shaft of the first motor, and the surface of the multidirectional threaded rod is in threaded connection with a first threaded block. A clamping block is fixedly mounted at the top of the first screw block through a support, a placement seat is fixedly mounted at the bottom of an inner cavity of the mounting box through a support, and a sample tube body is arranged in an inner cavity of the placement seat. By arranging the mounting box and arranging the three placement seats in the mounting box, three sample tube bodies can be supported, the three sample tube bodies can be clamped by opening a first motor, three groups of stirring rods and stirring blades can be driven to be inserted into the three sample tube bodies by opening a second motor, and the three sample tube bodies can be clamped by opening a third motor. And three groups of samples can be stirred, so that the aim of clamping and stirring a plurality of samples is fulfilled, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mass spectrometer detection, in particular to a sample bracket for a gas phase mass spectrometer. Background Art

[0002] Gas chromatography-mass spectrometry is widely used in environmental protection, electronics, textiles, petrochemicals, flavors and fragrances, pharmaceuticals, agriculture, food safety and other fields. It is used for analysis of organic pollutants in the environment (pollution analysis in air, water and soil), analysis of pesticide residues, animal residues and drug residues, analysis of aroma components of flavors and fragrances, and detection of harmful substances in the textile industry. Sample holders are required for storing sample tubes. However, sample holders used in traditional gas mass spectrometers are not convenient for clamping sample tubes and stirring samples, and sample precipitation affects detection accuracy.

[0003] Patent publication number CN218782239U discloses "a sample holder for a gas mass spectrometer", including a base plate, a connecting rod, a fixed rod and a sample bottle. A clamping mechanism is arranged under the base plate, and the clamping mechanism includes a sliding rod, a sliding plate, an adjusting plate and a moving plate. The outer wall of the sliding rod is slidably connected to the inner wall of the sliding plate, the bottom of the sliding plate is fixedly connected to the top of the adjusting plate, the inner wall of the adjusting plate is slidably connected to both ends of the moving plate, the bottom of the moving plate is fixedly connected to the top of the moving rod, the bottom of the moving rod passes through the adjusting plate and extends to the bottom of the adjusting plate, a limiting plate is fixedly installed on the bottom of the moving rod, a sponge plate is fixedly installed on one side of the adjusting plate, and a pull rod is fixedly installed on the other side of the adjusting plate, so that the sample bottle can be better clamped and fixed, but it can only fix a single sample. When using a mass spectrometer for detection, it is generally necessary to detect multiple samples to ensure the detection accuracy. For this reason, we propose a sample holder for a gas mass spectrometer. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a sample holder for a gas mass spectrometer, which facilitates the clamping of multiple sample tubes and the stirring of multiple samples, and solves the problems that the traditional sample holder for a gas mass spectrometer is not convenient for clamping sample tubes and stirring samples, and sample precipitation affects the detection accuracy.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sample holder for a gas mass spectrometer, comprising an installation box, a first motor is fixedly installed on the right side of the inner cavity of the installation box, a multi-directional threaded rod is fixedly installed on the output shaft of the first motor, a first screw block is threadedly connected to the surface of the multi-directional threaded rod, a clamping block is fixedly installed on the top of the first screw block through a bracket, a placement seat is fixedly installed on the bottom of the inner cavity of the installation box through a bracket, a sample tube body is provided in the inner cavity of the placement seat, an adjustment box is fixedly installed on the right side of the top of the installation box, and the bottom of the inner cavity of the adjustment box A second motor is fixedly installed, and a one-way threaded rod is fixedly installed on the output shaft of the second motor, and a second screw block is threadedly connected to the surface of the one-way threaded rod, a support plate is fixedly installed on the left side of the second screw block, and a third motor is fixedly installed on the right side of the bottom of the support plate, and a transmission wheel is fixedly installed on the output shaft of the third motor, and a transmission belt is meshed on the surface of the transmission wheel. A stirring rod is rotatably connected to the bottom of the support plate through a bearing, and a driven wheel is fixedly installed on the surface of the stirring rod, and the driven wheel is meshed with the transmission belt, and stirring blades are fixedly installed on both sides of the left and right sides of the stirring rod.

[0008] As a preferred solution, the surface of the multi-directional threaded rod is provided with three groups of positive and negative threads, the first screw blocks and the clamping blocks are both provided with three groups, and the three groups of first screw blocks correspond to the three groups of positive and negative threads.

[0009] As a preferred solution, a first locating bearing is fixedly installed on the left side of the inner cavity of the installation box, and the first locating bearing is rotatably connected to the multi-directional threaded rod, a first guide slider is fixedly installed on the bottom of the first screw block, and a first guide groove is opened in the inner cavity of the installation box.

[0010] As a preferred solution, a second locating bearing is fixedly installed on the top of the inner cavity of the adjustment box, and the second locating bearing is rotatably connected to the one-way threaded rod, a second guide slider is fixedly installed on the right side of the second screw block, and a second guide groove is opened in the inner cavity of the adjustment box.

[0011] As a preferred solution, a dust cover is provided at the bottom of the support plate, and a corrosion-resistant coating is applied on the surface of the dust cover.

[0012] As a preferred solution, the front of the installation box is movably connected to a box door via a hinge, and a handle is provided on the front of the box door.

[0013] As a preferred solution, a controller is arranged at the top of the right side of the installation box, and a battery box is arranged at the bottom of the right side of the installation box.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a sample holder for a gas phase mass spectrometer, which has the following beneficial effects.

[0016] The utility model provides an installation box, and three placement seats are provided in the installation box, so that three sample tube bodies can be supported. By turning on the first motor, the three sample tube bodies can be clamped. By turning on the second motor, three groups of stirring rods and stirring blades can be driven to insert into the three sample tube bodies. By turning on the third motor, the three groups of samples can be stirred, thereby achieving the purpose of clamping and stirring multiple samples, and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the enlarged cross-sectional structure of the installation box of the utility model;

[0019] Figure 3 This is a schematic diagram of the enlarged cross-sectional structure of the regulating box of the utility model;

[0020] Figure 4 It is a schematic diagram of the enlarged cross-sectional structure of the dust cover of the utility model.

[0021] In the figure: 1. installation box; 2. first motor; 3. multi-directional threaded rod; 4. first screw block; 5. clamping block; 6. first guide slider; 7. first guide slot; 8. first positioning bearing; 9. placement seat; 10. sample tube body; 11. box door; 12. adjustment box; 13. second motor; 14. one-way threaded rod; 15. second screw block; 16. second positioning bearing; 17. second guide slider; 18. second guide slot; 19. support plate; 20. third motor; 21. transmission wheel; 22. transmission belt; 23. stirring rod; 24. driven wheel; 25. stirring blade; 26. dust cover; 27. controller; 28. battery box. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1-4 The utility model: a sample holder for a gas phase mass spectrometer, comprising an installation box 1, a first motor 2 is fixedly installed on the right side of the inner cavity of the installation box 1, a multi-directional threaded rod 3 is fixedly installed on the output shaft of the first motor 2, a first screw block 4 is threadedly connected on the surface of the multi-directional threaded rod 3, a clamping block 5 is fixedly installed on the top of the first screw block 4 through a bracket, a placement seat 9 is fixedly installed on the bottom of the inner cavity of the installation box 1 through a bracket, a sample tube body 10 is arranged in the inner cavity of the placement seat 9, an adjustment box 12 is fixedly installed on the right side of the top of the installation box 1, a second motor 13 is fixedly installed on the bottom of the inner cavity of the adjustment box 12, and the second motor 13 The output shaft is fixedly mounted with a one-way threaded rod 14, the surface of which is threadedly connected with a second screw block 15, a support plate 19 is fixedly mounted on the left side of the second screw block 15, a third motor 20 is fixedly mounted on the right side of the bottom of the support plate 19, a transmission wheel 21 is fixedly mounted on the output shaft of the third motor 20, a transmission belt 22 is meshed on the surface of the transmission wheel 21, a stirring rod 23 is rotatably connected to the bottom of the support plate 19 through a bearing, a driven wheel 24 is fixedly mounted on the surface of the stirring rod 23, and the driven wheel 24 is meshed with the transmission belt 22, and stirring blades 25 are fixedly mounted on both the left and right sides of the stirring rod 23.

[0026] The surface of the multi-directional threaded rod 3 is provided with three groups of positive and negative threads, the first screw blocks 4 and the clamping blocks 5 are both provided with three groups, and the three groups of first screw blocks 4 correspond to the three groups of positive and negative threads.

[0027] Through the above technical solution, when the first motor 2 drives the multi-directional threaded rod 3 to rotate, the three groups of first screw blocks 4 are driven to move through the three groups of positive and negative threads. Each group of first screw blocks 4 are close to each other, and can drive the three groups of clamping blocks 5 to clamp the three sample tube bodies 10.

[0028] A first positioning bearing 8 is fixedly installed on the left side of the inner cavity of the installation box 1, and the first positioning bearing 8 is rotatably connected to the multi-directional threaded rod 3. A first guide slider 6 is fixedly installed on the bottom of the first screw block 4, and a first guide slot 7 is opened in the inner cavity of the installation box 1.

[0029] Through the above technical solution, the first positioning bearing 8 positions the multi-directional threaded rod 3, making the first positioning bearing 8 more stable, and the first guide slider 6 and the first guide slot 7 can guide the first screw block 4, making the first screw block 4 stable when moving.

[0030] A second positioning bearing 16 is fixedly installed on the top of the inner cavity of the adjustment box 12, and the second positioning bearing 16 is rotatably connected to the one-way threaded rod 14. A second guide slider 17 is fixedly installed on the right side of the second screw block 15, and a second guide slot 18 is opened in the inner cavity of the adjustment box 12.

[0031] Through the above technical solution, the second positioning bearing 16 positions the one-way threaded rod 14, making the one-way threaded rod 14 more stable. The second guide slider 17 and the second guide slot 18 can guide the second screw block 15, making the second screw block 15 stable when moving.

[0032] A dust cover 26 is provided at the bottom of the support plate 19 , and a corrosion-resistant coating is applied on the surface of the dust cover 26 .

[0033] Through the above technical solution, the dust cover 26 plays a dustproof role and can prevent dust from entering.

[0034] The front of the installation box 1 is movably connected to a box door 11 via a hinge, and a handle is provided on the front of the box door 11.

[0035] Through the above technical solution, the box door 11 is opened by the handle, so that the components in the installation box 1 can be easily inspected and repaired.

[0036] A controller 27 is disposed at the top of the right side of the installation box 1 , and a battery box 28 is disposed at the bottom of the right side of the installation box 1 .

[0037] Through the above technical solution, the controller 27 is used to control the switches of various electrical appliances, and the batteries in the battery box 28 provide backup power for the device.

[0038] The working principle of the utility model is as follows: three sample tube bodies 10 are placed in the inner cavities of three placement seats 9, the first motor 2 is turned on to drive the multidirectional threaded rod 3 to rotate, the multidirectional threaded rod 3 drives the three groups of first screw blocks 4 to move, so that the three groups of first screw blocks 4 drive the three groups of clamping blocks 5 to clamp the three sample tube bodies 10, so that the sample tube bodies 10 are stable, the second motor 13 is turned on to drive the unidirectional threaded rod 14 to rotate, the unidirectional threaded rod 14 drives the second screw block 15 to move downward, the second screw block 15 drives the support plate 19 to move downward, thereby driving the stirring rod 23 and the driven wheel 24 to insert into the sample tube body 10, the third motor 20 is turned on to drive the transmission wheel 21 to rotate, through the cooperation of the transmission belt 22, the transmission wheel 21 drives the three driven wheels 24 to rotate, the driven wheel 24 drives the stirring rod 23 to rotate, the stirring rod 23 drives the stirring blade 25 to rotate, so that the sample can be stirred.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A sample holder for a gas phase mass spectrometer, comprising a mounting box (1), characterized in that: A first motor (2) is fixedly installed on the right side of the inner cavity of the installation box (1), a multi-directional threaded rod (3) is fixedly installed on the output shaft of the first motor (2), a first screw block (4) is threadedly connected to the surface of the multi-directional threaded rod (3), a clamping block (5) is fixedly installed on the top of the first screw block (4) through a bracket, a placement seat (9) is fixedly installed on the bottom of the inner cavity of the installation box (1) through a bracket, and a sample tube body (10) is arranged in the inner cavity of the placement seat (9), an adjustment box (12) is fixedly installed on the right side of the top of the installation box (1), a second motor (13) is fixedly installed on the bottom of the inner cavity of the adjustment box (12), and a unidirectional threaded rod ( 14), the surface of the one-way threaded rod (14) is threadedly connected with a second screw block (15), a support plate (19) is fixedly installed on the left side of the second screw block (15), a third motor (20) is fixedly installed on the right side of the bottom of the support plate (19), a transmission wheel (21) is fixedly installed on the output shaft of the third motor (20), a transmission belt (22) is meshed on the surface of the transmission wheel (21), a stirring rod (23) is rotatably connected to the bottom of the support plate (19) through a bearing, a driven wheel (24) is fixedly installed on the surface of the stirring rod (23), and the driven wheel (24) is meshed with the transmission belt (22), and stirring blades (25) are fixedly installed on both the left and right sides of the stirring rod (23).

2. The sample holder for a gas phase mass spectrometer according to claim 1, characterized in that: The surface of the multi-directional threaded rod (3) is provided with three groups of positive and negative threads, the first screw blocks (4) and the clamping blocks (5) are both provided with three groups, and the three groups of first screw blocks (4) correspond to the three groups of positive and negative threads.

3. The sample holder for a gas phase mass spectrometer according to claim 1, characterized in that: A first positioning bearing (8) is fixedly installed on the left side of the inner cavity of the installation box (1), and the first positioning bearing (8) is rotatably connected to the multi-directional threaded rod (3). A first guide sliding block (6) is fixedly installed on the bottom of the first screw block (4), and a first guide sliding groove (7) is opened in the inner cavity of the installation box (1).

4. The sample holder for a gas phase mass spectrometer according to claim 1, characterized in that: A second positioning bearing (16) is fixedly installed on the top of the inner cavity of the adjustment box (12), and the second positioning bearing (16) is rotatably connected to the one-way threaded rod (14). A second guide sliding block (17) is fixedly installed on the right side of the second screw block (15), and a second guide sliding groove (18) is opened in the inner cavity of the adjustment box (12).

5. The sample holder for a gas phase mass spectrometer according to claim 1, characterized in that: A dust cover (26) is provided at the bottom of the support plate (19), and a corrosion-resistant coating is applied on the surface of the dust cover (26).

6. The sample holder for a gas phase mass spectrometer according to claim 1, characterized in that: The front of the installation box (1) is movably connected to a box door (11) via a hinge, and a handle is provided on the front of the box door (11).

7. The sample holder for a gas phase mass spectrometer according to claim 1, characterized in that: A controller (27) is arranged at the top of the right side of the installation box (1), and a battery box (28) is arranged at the bottom of the right side of the installation box (1).

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