CN219626590U - Mass spectrometer sampling device - Google Patents

Abstract

The utility model belongs to the technical field of mass spectrometer auxiliary equipment, and particularly relates to a mass spectrometer sample injection device, which comprises a mass spectrometer body and sample injection ports formed in the upper end face of the mass spectrometer body, wherein a rotatable turntable is arranged above the sample injection ports, a driving assembly for driving the turntable to rotate is arranged in the center of the lower end face of the turntable, a plurality of placement holes which are annularly distributed with the center of the turntable as a center store are formed in the turntable, and each placement hole is movably inserted with a sample injector, and one sample injector is positioned right above the sample injection port; a fixed support is fixedly arranged at one end of the upper end face of the mass spectrometer body, and a movable support perpendicular to the fixed support is arranged on the fixed support. The defect of the prior art is overcome, the rotary table is driven to rotate by the driver so as to drive the sample injector to automatically align, the sample injection cylinder is used for extruding sample injection, the operation difficulty is low, the automation degree is high, and the detection efficiency of the mass spectrometer is improved.

Description

Mass spectrometer sampling device

Technical Field

The utility model belongs to the technical field of mass spectrometer auxiliary equipment, and particularly relates to a mass spectrometer sample injection device.

Background

Mass spectrometers are instruments for separating and detecting different isotopes, i.e. instruments of the type which separate and detect the composition of matter according to the mass differences of atoms, molecules or fragments of molecules of the matter, according to the principle that charged particles are able to deflect in an electromagnetic field.

The sample injection modes of the mass spectrometer comprise diffusion sample injection, probe sample injection, chromatographic sample injection and the like. The probe sample injection generally needs to be manually sampled and injected through a needle tube, and when the sample injection is performed, the sampling tube needs to be manually controlled to vertically enter the sample injection port of the mass spectrometer, so that the sample injection port needs to be aligned; and in mass detection, alignment sample injection is needed each time, so that the detection efficiency of the mass spectrometer is affected.

Disclosure of Invention

The utility model aims to provide a sample injection device of a mass spectrometer, which overcomes the defects of the prior art, drives a rotary table to rotate through a driver so as to drive the sample injector to automatically align, and then utilizes a sample injection cylinder to extrude sample injection, so that the operation difficulty is low, the automation degree is high, and the detection efficiency of the mass spectrometer is improved.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

the utility model provides a mass spectrometer sampling device, includes mass spectrometer body and sets up the sample inlet at mass spectrometer body up end, the top of sample inlet is provided with rotatable carousel, and the lower terminal surface center department of carousel installs the drive assembly who drives the carousel rotation, set up a plurality of holes of placing that take the centre of a circle of carousel as the central point to take annular distribution on the carousel, and every is placed the downthehole activity grafting of hole has the sample injector, and one of them sample injector is located the sample inlet directly over;

the mass spectrometer comprises a mass spectrometer body, and is characterized in that a fixed support is fixedly arranged at one end of the upper end face of the mass spectrometer body, a movable support perpendicular to the fixed support is arranged on the fixed support, a sample injection cylinder is arranged at one end, far away from the fixed support, of the movable support, and the bottom end of the sample injection cylinder is in contact butt with a sample injector located above a sample injection port.

Further, the drive assembly includes driving motor, driver and axis of rotation, the up end at the mass spectrometer body is installed to the driver, and driving motor installs on the driver, in the bottom of axis of rotation was pegged graft to the driver, and its top and the lower terminal surface center department fixed connection of carousel.

Further, the output end of the driving motor is connected with a transmission shaft, the transmission shaft is inserted into the driver, a driving gear is fixedly arranged on the outer side of the transmission shaft, a driven gear is fixedly arranged on the outer side of the rotation shaft, and the driven gear is meshed with the driving gear.

Further, an encoder is arranged on the transmission shaft, a controller is arranged in the driver, the input end of the controller is connected with the encoder, and the output end of the controller is connected with the driving motor and the sample injection cylinder.

Further, one end of the movable support is sleeved on the outer side of the fixed support, one end of the movable support, which is close to the fixed support, is provided with a positioning bolt in a penetrating mode, and the positioning bolt is in threaded connection with the fixed support.

Further, the up end of sample inlet is connected with flexible pipe, annular fly leaf has set firmly on the top of flexible pipe, the lower terminal surface one end of fly leaf has set firmly the support cylinder, and the bottom of support cylinder and the up end fixed connection of mass spectrometer body.

Further, the fly leaf is kept away from the one end of supporting the cylinder and wears to be equipped with the guide bar, the bottom of guide bar and the up end fixed connection of mass spectrometer body, and its top has set firmly the stopper.

Compared with the prior art, the utility model has the following beneficial effects:

according to the sample injection device of the mass spectrometer, the driving motor is matched with the driver to drive the turntable to rotate, so that the sample injector placed on the turntable is driven to rotate, the sample injection port is automatically aligned, and the sample injection is automatically performed through extrusion of the sample injection cylinder, so that the operation difficulty is low, the automation degree is high, and the detection efficiency of the mass spectrometer is improved; the extension of the telescopic tube is driven by the supporting cylinder to extend the sample inlet, so that samples in the sample injector are prevented from splashing outside the sample inlet.

Drawings

Fig. 1 is a schematic structural diagram of a sample injection device of a mass spectrometer.

Fig. 2 is an enlarged schematic diagram of a sample injection device of a mass spectrometer at a.

Fig. 3 is a schematic diagram of a driver in a sample injection device of a mass spectrometer.

In the figure: 1. a mass spectrometer body; 2. a fixed bracket; 3. a turntable; 4. a sample injection cylinder; 5. a positioning bolt; 6. a movable bracket; 7. a driver; 8. placing the hole; 9. a sample injector; 10. a movable plate; 11. a support cylinder; 12. a sample inlet; 13. a telescopic tube; 14. a guide rod; 15. a limiting block; 16. a rotating shaft; 17. a driving motor; 18. an encoder; 19. a drive gear; 20. a transmission shaft; 21. a driven gear; 22. and a controller.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-3, the sample injection device of the mass spectrometer comprises a mass spectrometer body 1 and sample injection ports 12 arranged on the upper end surface of the mass spectrometer body 1, a rotatable rotary table 3 is arranged above the sample injection ports 12, a driving component for driving the rotary table 3 to rotate is arranged at the center of the lower end surface of the rotary table 3, a plurality of placement holes 8 which are annularly distributed with the center of the rotary table 3 as a center point are arranged on the rotary table 3, and a sample injector 9 is movably inserted into each placement hole 8, wherein one sample injector 9 is positioned right above the sample injection ports 12;

the fixed bolster 2 has been set firmly to up end one end of mass spectrometer body 1, and installs a movable support 6 of perpendicular to fixed bolster 2 on the fixed bolster 2, and sample introduction cylinder 4 is installed to the one end that movable support 6 kept away from fixed bolster 2, and sample introduction cylinder 4's bottom and the contact butt of the injector 9 that is located sample introduction port 12 top.

The drive assembly comprises a drive motor 17, a driver 7 and a rotating shaft 16, wherein the driver 7 is arranged on the upper end face of the mass spectrometer body 1, the drive motor 17 is arranged on the driver 7, the bottom end of the rotating shaft 16 is inserted into the driver 7, and the top of the rotating shaft is fixedly connected with the center of the lower end face of the turntable 3.

In order to facilitate driving, the output end of the driving motor 17 is connected with a transmission shaft 20, the transmission shaft 20 is inserted into the driver 7, a driving gear 19 is fixedly arranged on the outer side of the transmission shaft 20, a driven gear 21 is fixedly arranged on the outer side of the rotating shaft 16, and the driven gear 21 is meshed with the driving gear 19.

In order to improve the automation level, the transmission shaft 20 is provided with an encoder 18, the driver 7 is internally provided with a controller 22, the input end of the controller 22 is connected with the encoder 18, and the output end of the controller 22 is connected with the driving motor 17 and the sample injection cylinder 4.

In order to be convenient for adjust the height of movable support 6, the outside at fixed bolster 2 is established to the one end cover of movable support 6, and movable support 6 is close to the one end of fixed bolster 2 and wears to be equipped with locating bolt 5, and locating bolt 5 and fixed bolster 2 threaded connection.

In order to avoid sample splashing, the upper end face of the sample inlet 12 is connected with a telescopic pipe 13, the top end of the telescopic pipe 13 is fixedly provided with a circular movable plate 10, one end of the lower end face of the movable plate 10 is fixedly provided with a supporting cylinder 11, and the bottom end of the supporting cylinder 11 is fixedly connected with the upper end face of the mass spectrometer body 1.

In order to improve stability, the movable plate 10 is provided with a guide rod 14 in a penetrating manner at one end far away from the supporting cylinder 11, the bottom end of the guide rod 14 is fixedly connected with the upper end face of the mass spectrometer body 1, and the top end of the guide rod is fixedly provided with a limiting block 15.

In summary, when the mass spectrometer sampling device is used, the sampled sample injectors 9 are sequentially placed in the placing holes 8 on the rotary table 3, the driving motor 17 is started to drive the transmission shaft 20 to rotate, the rotation shaft 16 is driven to rotate through the meshing of the driving gear 19 and the transmission gear, the rotary table 3 is driven to rotate, the encoder 18 monitors that the transmission shaft 20 rotates by a certain angle, when the sample injectors 9 move above the sample injection ports 12, the driving motor 17 is stopped, the sample injection cylinder 4 and the supporting cylinder 11 are synchronously started, the supporting cylinder 11 stretches to drive the movable block to move upwards so as to pull the telescopic pipes 13 to stretch to the sample outlet positions of the sample injectors 9, the sample injection cylinder 4 stretches to squeeze the sample injectors 9 so as to enable samples in the sample injectors 9 to enter the telescopic pipes 13 and the sample injection ports 12, and finally enter the mass spectrometer body 1 for detection; after the detection is completed, the operation is repeated, the next sample injector 9 is used for sample injection, an operator can take out the sample injector 9 which is already injected and place a new sample injector 9, the operation is circulated, and the detection efficiency is accelerated.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. A mass spectrometer sampling device, characterized in that: the device comprises a mass spectrometer body (1) and a sample inlet (12) arranged on the upper end surface of the mass spectrometer body (1), wherein a rotatable rotary table (3) is arranged above the sample inlet (12), a driving assembly for driving the rotary table (3) to rotate is arranged in the center of the lower end surface of the rotary table (3), a plurality of placement holes (8) which are annularly distributed with the center of the rotary table (3) as a center point are arranged on the rotary table (3), and a sample injector (9) is movably inserted into each placement hole (8), and one sample injector (9) is positioned right above the sample inlet (12);

the utility model discloses a mass spectrometer, including mass spectrometer body (1), fixed bolster (2) have been set firmly to up end one end of mass spectrometer body (1), and install movable support (6) of a perpendicular to fixed bolster (2) on fixed bolster (2), advance kind cylinder (4) are installed to one end that fixed bolster (2) was kept away from to movable support (6), and advance the bottom of kind cylinder (4) and lie in injector (9) contact butt of injection port (12) top.

2. The mass spectrometer sampling device of claim 1, wherein: the driving assembly comprises a driving motor (17), a driver (7) and a rotating shaft (16), wherein the driver (7) is arranged on the upper end face of the mass spectrometer body (1), the driving motor (17) is arranged on the driver (7), the bottom end of the rotating shaft (16) is inserted into the driver (7), and the top of the rotating shaft is fixedly connected with the center of the lower end face of the turntable (3).

3. The mass spectrometer sampling device of claim 2, wherein: the output end of the driving motor (17) is connected with a transmission shaft (20), the transmission shaft (20) is inserted into the driver (7), a driving gear (19) is fixedly arranged on the outer side of the transmission shaft (20), a driven gear (21) is fixedly arranged on the outer side of the rotating shaft (16), and the driven gear (21) is meshed with the driving gear (19).

4. A mass spectrometer sampling device as claimed in claim 3, wherein: the device is characterized in that an encoder (18) is arranged on the transmission shaft (20), a controller (22) is arranged in the driver (7), the input end of the controller (22) is connected with the encoder (18), and the output end of the controller (22) is connected with the driving motor (17) and the sample injection cylinder (4).

5. The mass spectrometer sampling device of claim 1, wherein: one end of the movable support (6) is sleeved on the outer side of the fixed support (2), one end, close to the fixed support (2), of the movable support (6) is provided with a positioning bolt (5) in a penetrating mode, and the positioning bolt (5) is in threaded connection with the fixed support (2).

6. The mass spectrometer sampling device of claim 1, wherein: the device is characterized in that an upper end face of the sample inlet (12) is connected with a telescopic pipe (13), an annular movable plate (10) is fixedly arranged at the top end of the telescopic pipe (13), a supporting cylinder (11) is fixedly arranged at one end of the lower end face of the movable plate (10), and the bottom end of the supporting cylinder (11) is fixedly connected with the upper end face of the mass spectrometer body (1).

7. The mass spectrometer sampling device of claim 6, wherein: the one end that support cylinder (11) was kept away from to fly leaf (10) wears to be equipped with guide bar (14), the bottom of guide bar (14) is connected with the up end fixed of mass spectrometer body (1), and its top has set firmly stopper (15).