CN211062686U

CN211062686U - Sampling device of leather inductively coupled plasma mass spectrometer

Info

Publication number: CN211062686U
Application number: CN201922250027.7U
Authority: CN
Inventors: 徐伟坤
Original assignee: Guangdong Jingzheng Testing Co ltd
Current assignee: Guangdong Jingzheng Testing Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-07-21
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses a leather inductive coupling plasma mass spectrograph's sampling device, which comprises a bod, the interior bottom of organism is fixed with motor one, the vertical upwards of drive end of motor one is fixed with the carousel, the last lateral wall middle part of carousel is fixed with motor two, evenly be fixed with three bull stick, every on the drive end outer wall of motor two the one end that motor two was kept away from to the bull stick all is fixed with arc piece one, the last lateral wall of carousel is fixed with three evenly distributed's fixed column, every all the cover is equipped with the slide on the outer wall of fixed column, every the spout has all been seted up with the junction of fixed column to the slide, every all be fixed with compression spring between the outer wall of fixed column and the inner wall of spout. The utility model discloses a rotation of carousel realizes the sample of syringe, washs and the reciprocating work of sample, has avoided traditional single solution to detect, needs the problem of frequent change sample for detection efficiency has reduced manual operation simultaneously.

Description

Sampling device of leather inductively coupled plasma mass spectrometer

Technical Field

The utility model relates to an elemental analysis technical field especially relates to a leather inductively coupled plasma mass spectrograph's sampling device.

Background

The leather inductively coupled plasma mass spectrometer is mainly used for trace and ultra-trace multi-element analysis and isotope ratio analysis.

The device consists of a plasma generator, an atomizing chamber, a torch tube, a quadrupole mass spectrometer and a fast channel electron multiplier tube. The working principle is as follows: the atomizer sends a solution sample into a plasma light source, the solution sample is vaporized at high temperature to dissociate ionized gas, ions collected by a copper or nickel sampling cone form a molecular beam under the pressure of about 133.322 Pa in low vacuum, the molecular beam enters a quadrupole mass spectrometer through an intercepting plate with the diameter of 1-2 mm, the mass of the ion beam is separated by a mass filter and then reaches an ion detector, the content or isotope ratio of elements can be measured according to the proportional relation between the counting and the concentration of the detector, the solution sample is generally sucked by a special sample injection needle and enters a machine body to be atomized by the atomizer, the traditional sample injection needle can only perform single solution suction work, and secondary work can be performed after the solution is manually replaced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the background art, and the sampling device of the leather inductively coupled plasma mass spectrometer who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a sample introduction device of a leather inductively coupled plasma mass spectrometer comprises a machine body, wherein a first motor is fixed at the inner bottom of the machine body, a turntable is vertically and upwards fixed at the driving end of the first motor, a second motor is fixed at the middle part of the upper side wall of the turntable, three rotating rods are uniformly fixed on the outer wall of the driving end of the second motor, a first arc-shaped block is fixed at one end, away from the second motor, of each rotating rod, three uniformly distributed fixed columns are fixed on the upper side wall of the turntable, a sliding plate is sleeved on the outer wall of each fixed column, a sliding groove is formed in the joint of each sliding plate and the fixed column, a compression spring is fixed between the outer wall of each fixed column and the inner wall of the sliding groove, a second arc-shaped block is fixed at one end, close to the second motor, of each sliding plate, a test tube groove is formed in one end, away from the second arc-shaped block, and a sample injection needle positioned at the upper side of the test tube groove is fixed on the linear guide rail.

Preferably, two limiting columns located on the outer side of each sliding plate are fixed on the upper side wall of the rotating disc.

Preferably, the carousel is last still to be seted up three evenly distributed's collection mouth, it is located between two adjacent slides to collect the mouth, still be provided with the washing case in the organism, wash the incasement and be equipped with the liquid pump, be connected through the pipe between liquid pump and the syringe.

Preferably, a one-way valve is mounted on the conduit.

Preferably, an outlet is formed in the inner bottom wall of the machine body, a water outlet pipe is arranged in the outlet in a sliding mode, the upper end of the water outlet pipe is connected with connecting pipes through four-way joints, and one end, far away from the four-way joints, of each connecting pipe is communicated with one of the collecting ports.

Preferably, the second arc-shaped block is larger than the first arc-shaped block in specification.

Compared with the prior art, this sampling device of leather inductively coupled plasma mass spectrograph's advantage lies in:

1. the second starting motor drives the first arc-shaped block to rotate to be in contact with the second arc-shaped block, the arc-shaped block and the sliding plate are extruded to move towards the outer side until the test tube groove is positioned on the outer side of the machine body, the test tube with the solution stored is placed in the test tube groove, a plurality of samples are placed at one time, and frequent replacement is avoided;

2. the first motor drives the rotary table to rotate for a certain angle until the collection port is positioned under the sampling needle, the liquid pump is started to pump clean water in the cleaning box into the sampling needle for cleaning, then the clean water is injected into the collection port and then is discharged through the water outlet pipe, the first motor continuously drives the rotary table to rotate until the next test tube groove is positioned under the sampling needle, next sampling detection work is carried out, detection work of a plurality of samples can be realized through one work, and frequent replacement is not needed;

to sum up, the utility model discloses a rotation of carousel realizes the sample of syringe, washs and the reciprocating work of sample, has avoided traditional single solution to detect, needs the problem of frequent change sample for detection efficiency has reduced manual operation simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of a sample injection device of a leather inductively coupled plasma mass spectrometer provided by the present invention;

fig. 2 is the utility model provides a top view of carousel in sampling device of leather inductively coupled plasma mass spectrograph.

In the figure: the device comprises a machine body 1, a motor I2, a rotating disc 3, a collecting port 4, a connecting pipe 5, a water outlet pipe 6, a linear guide rail 7, a sample injection needle 8, a cleaning box 9, a guide pipe 10, a motor II 11, an arc block I12, a sliding plate 13, an arc block II 14, a sliding groove 15, a fixed column 16, a compression spring 17, a limiting column 18 and a test tube groove 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a sample injection device of a leather inductively coupled plasma mass spectrometer comprises a machine body 1, a first motor 2 is fixed at the inner bottom of the machine body 1, a rotary table 3 is vertically and upwards fixed at the driving end of the first motor 2, a second motor 11 is fixed at the middle part of the upper side wall of the rotary table 3, three rotary rods are uniformly fixed on the outer wall of the driving end of the second motor 11, a first arc-shaped block 12 is fixed at one end of each rotary rod far away from the second motor 11, three uniformly distributed fixed columns 16 are fixed on the upper side wall of the rotary table 3, a sliding plate 13 is sleeved on the outer wall of each fixed column 16, a sliding groove 15 is formed at the joint of each sliding plate 13 and each fixed column 16, a compression spring 17 is fixed between the outer wall of each fixed column 16 and the inner wall of the sliding groove 15, and further, when the compression spring 17 is completely unfolded, a sample injection needle 8 is just, the first motor 2 and the second motor 11 both adopt stepping motors, when a stepping driver of the stepping motor receives a pulse signal, the stepping driver drives the stepping motor to rotate by a fixed angle called as a stepping angle according to a set direction, and the stepping motor rotates by one step at the fixed angle. The angular displacement can be controlled by controlling the number of pulses, so that the purpose of accurate positioning is achieved, furthermore, the first motor 2 rotates 60 degrees at each time, the switching between the test tube slot 19 and the collection port 4 which are positioned under the sampling needle 8 is carried out, the second motor 11 rotates 60 degrees at each time, the first arc block 12 and the second arc block 14 are intermittently contacted, and the sliding plate 13 is ejected and retracted.

One end of each sliding plate 13, which is close to the second motor 11, is fixed with a second arc block 14, the second arc block 14 is larger than the first arc block 12, one end of each sliding plate 13, which is far away from the second arc block 14, is provided with a test tube slot 19, the second motor 11 drives the first arc block 12 to rotate to be in contact with the second arc block 14, the second arc block 14 and the sliding plate 13 are extruded to move outwards to the outer side of the machine body 1, the test tube in which solution is stored is placed in the test tube slot 19, the second motor 11 continues to rotate to the first arc block 12 without being in contact with the second arc block 14, under the reverse elasticity of the compression spring 17, the sliding plate 13 moves back to the test tube slot 19 and is positioned under the sample injection needle 8, and further, an opening matched with the size of the sliding plate 13 is formed in the outer wall of the machine body 1, so that the sliding plate 13 can stretch out.

The inside of organism 1 is equipped with linear guide 7, and the last fixed injection needle 8 that is located the test-tube groove 19 upside of linear guide 7, linear guide 7 are current realization straight reciprocating motion's equipment, have the guide rail and constitute at the gliding slider of guide rail, and injection needle 8 is fixed on the outer wall of slider, and linear guide 7 drives injection needle 8 and moves back to the organism 1 after absorbing solution and detects down.

Further, the upper side wall of carousel 3 is fixed with two spacing posts 18 that are located every slide 13 outside, carries on spacingly through spacing post 18 to slide 13, guarantees its gliding steady, can not take place to rotate and cause the skew of position.

The rotary table 3 is also provided with three collecting ports 4 which are uniformly distributed, the collecting ports 4 are positioned between two adjacent sliding plates 13, a cleaning box 9 is also arranged in the machine body 1, a liquid pump is arranged in the cleaning box 9, the liquid pump is connected with the sampling needle 8 through a guide pipe 10, a one-way valve is arranged on the guide pipe 10 and is used for preventing a solution from entering the cleaning box 9, the inner bottom wall of the machine body 1 is provided with an outlet, a water outlet pipe 6 is arranged in the outlet in a sliding manner, the upper end of the water outlet pipe 6 is connected with a connecting pipe 5 through a four-way joint, one end, far away from the four-way joint, of each connecting pipe 5 is respectively communicated with one collecting port 4, after the sampling needle 8 absorbs the solution in one of the test pipes for detection, the motor I2 drives the rotary table 3 to rotate for a certain angle until the collecting ports 4 are positioned under the sampling needle 8, the liquid pump is started to pump clean water in, the first motor 2 continuously drives the rotary table 3 to rotate until the next test tube slot 19 is positioned under the sample injection needle 8, and the next sampling detection work is carried out.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

Now, the operation principle of the present invention is explained as follows:

starting a second motor 11 to drive a first arc-shaped block 12 to rotate to be in contact with a second arc-shaped block 14, extruding the second arc-shaped block 14 and a sliding plate 13 to move outwards until a test tube groove 19 is positioned outside a machine body 1, placing a test tube with a solution stored in the test tube groove 19, continuously rotating the second motor 11 until the first arc-shaped block 12 is not in contact with the second arc-shaped block 14, under the reverse elasticity of a compression spring 17, moving the sliding plate 13 back to a position where the test tube groove 19 is positioned under a sample injection needle 8, driving the sample injection needle 8 to move downwards by a linear guide rail 7 to suck the solution and then move back into the machine body 1 for detection, driving a first motor 2 to drive a rotary plate 3 to rotate for a certain angle until a collection port 4 is positioned under the sample injection needle 8, starting a liquid pump to pump clean water in a cleaning box 9 into the sample injection needle 8 for cleaning, injecting the clean water into the collection port 4 and then discharging the clean water through a water outlet pipe 6, continuously driving the first motor 2 to drive the rotary plate, and carrying out next sampling detection work.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A sample introduction device of a leather inductively coupled plasma mass spectrometer comprises a machine body (1) and is characterized in that a first motor (2) is fixed at the inner bottom of the machine body (1), a rotary table (3) is vertically and upwards fixed at the driving end of the first motor (2), a second motor (11) is fixed in the middle of the upper side wall of the rotary table (3), three rotary rods are uniformly fixed on the outer wall of the driving end of the second motor (11), an arc-shaped block I (12) is fixed at one end, far away from the second motor (11), of each rotary rod, three uniformly distributed fixing columns (16) are fixed on the upper side wall of the rotary table (3), a sliding plate (13) is sleeved on the outer wall of each fixing column (16), a sliding groove (15) is formed in the joint of each sliding plate (13) and each fixing column (16), a compression spring (17) is fixed between the outer wall of each fixing column (16) and the inner wall of each sliding groove (15), every slide (13) are close to the one end of motor two (11) and all are fixed with arc piece two (14), every test tube groove (19) have all been seted up to slide (13) one end of keeping away from arc piece two (14), the inside of organism (1) is equipped with linear guide (7), fixed injection needle (8) that are located test tube groove (19) upside on linear guide (7).

2. The sample injection device of the leather inductively coupled plasma mass spectrometer as recited in claim 1, wherein two limiting columns (18) located at the outer side of each sliding plate (13) are fixed on the upper side wall of the rotating disc (3).

3. The sampling device of the leather inductively coupled plasma mass spectrometer according to claim 1, wherein three uniformly distributed collection ports (4) are further formed in the rotary table (3), the collection ports (4) are located between two adjacent sliding plates (13), a cleaning box (9) is further arranged in the machine body (1), a liquid pump is arranged in the cleaning box (9), and the liquid pump is connected with the sampling needle (8) through a conduit (10).

4. A sample introduction device for a leather inductively coupled plasma mass spectrometer according to claim 3, wherein the conduit (10) is provided with a one-way valve.

5. The sample introduction device of the leather inductively coupled plasma mass spectrometer according to claim 3, wherein an outlet is formed in the inner bottom wall of the machine body (1), a water outlet pipe (6) is slid in the outlet, the upper end of the water outlet pipe (6) is connected with the connecting pipes (5) through a four-way joint, and one end, far away from the four-way joint, of each connecting pipe (5) is respectively communicated with one of the collecting ports (4).

6. The sample injection device of the leather inductively coupled plasma mass spectrometer as recited in claim 1, wherein the second arc block (14) is larger than the first arc block (12).