CN214584841U - Automatic sample introduction frame of spectrophotometer - Google Patents

Abstract

The utility model discloses a spectrophotometer autoinjection frame, including outer frame, buffer bottle and bullet clamp plate, the vacuum pump body is installed to the inboard of outer frame, and the upper end of the vacuum pump body is connected with first pipe, the outer wall of first pipe is provided with first solenoid valve, the left end of the vacuum pump body is connected with the washing pipe, and washs the outer wall of pipe and install the control valve, the buffer bottle is installed in the left end of wasing the pipe, and the upper end of buffer bottle is linked there is the second pipe, the second solenoid valve is installed to the outer wall of second pipe, and the left side of second pipe is provided with the sampling tube, the outside of sampling tube is provided with the cuvette, and the below of sealing plug installs the cuvette, the bullet clamp plate is installed in the below of cuvette, and the outside of bullet clamp plate is connected with the guide rail, the below of bullet clamp plate is provided with reset spring. This spectrophotometer autoinjection frame can be convenient for carry out the autosampler, produces when can preventing to take a sample and pollutes or spill the cell outside.

Description

Automatic sample introduction frame of spectrophotometer

Technical Field

The utility model relates to a spectrometer device technical field specifically is a spectrophotometer autoinjection frame.

Background

In the field of analysis and detection, detection substances need to be poured into a cuvette or a cuvette for comparative analysis so as to obtain corresponding detection values, and the light transmission effect of the cuvette influences the change of the colorimetric values.

The injection of sample in the spectrophotometer on market adopts artifical manual pouring to carry out the work of blocking again in the cell usually, so not only can make the sample produce when pouring into and pollute, still pours the sample into the cell outer wall simultaneously easily to cause the problem of pollution easily, for this reason, we provide a spectrophotometer autoinjection frame.

Disclosure of Invention

An object of the utility model is to provide a spectrophotometer autoinjection frame to the injection of sample in the spectrophotometer that proposes in solving above-mentioned background art adopts artifical manual pouring to carry out the block work again in the cell usually, so not only can make the sample produce when pouring and pollute, still pours the cell outer wall into the sample simultaneously easily, thereby causes the problem of pollution easily.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic sample introduction frame of a spectrophotometer comprises an outer frame, a buffer bottle and a spring pressing plate, wherein a vacuum pump body is arranged on the inner side of the outer frame, the upper end of the vacuum pump body is connected with a first guide pipe, the outer wall of the first guide pipe is provided with a first electromagnetic valve, the left end of the vacuum pump body is connected with a cleaning guide pipe, and the outer wall of the cleaning conduit is provided with a control valve, the buffer bottle is arranged at the left end of the cleaning conduit, and the upper end of the buffer bottle is connected with a second conduit, the outer wall of the second conduit is provided with a second electromagnetic valve, and the left side of the second conduit is provided with a sampling tube, the outer side of the sampling tube is provided with a sealing plug, a cuvette is arranged below the sealing plug, the elastic pressing plate is arranged below the cuvette, and the outside of the elastic pressing plate is connected with a guide rail, a return spring is arranged below the elastic pressing plate, and a controller is arranged on the right side of the outer frame.

Preferably, the buffer bottle forms a communicating structure with the vacuum pump body and the sampling tube through a first guide pipe and a second guide pipe respectively, and the distance between the opening end of the first guide pipe and the opening end of the second guide pipe in the buffer bottle and the bottle mouth of the buffer bottle is 1 cm.

Preferably, the cleaning conduit penetrates through the inner cavity of the buffer bottle, and the opening of the cleaning conduit is flush with the inner wall of the bottom of the buffer bottle.

Preferably, the sampling tube is connected with the sealing plug in a clamping manner, and the sealing plug is of an inverted trapezoidal structure.

Preferably, the elastic pressing plate forms an elastic sliding structure with the guide rail through a return spring, and the elastic pressing plate is connected with the sampling tube in a clamping manner.

Preferably, the controller is electrically connected with the first electromagnetic valve, the second electromagnetic valve and the control valve, and the controller comprises a control panel unit and a central processing unit.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the automatic sample introduction frame of the spectrophotometer is provided with the vacuum pump body, the buffer bottle and the cuvette can be pumped into a relatively vacuum state through the vacuum pump body, so that a sample can be conveniently sucked into the cuvette through a siphon principle, the sample transfer can be completed, the buffer bottle can be used for preventing the sample from being sucked out of the cuvette to the outside due to overlarge pressure of the vacuum pump body, the buffering effect can be achieved, and the sample entering the buffer bottle can be prevented from being sucked out again due to the fact that the first guide pipe and the second guide pipe are close to the bottle opening;

2. the device is characterized in that a cleaning guide pipe is arranged, so that cleaning water and residual substances can be conveniently and completely sucked out of a buffer bottle when the device is automatically cleaned, the buffer bottle can be cleaned completely, sewage and the like are prevented from remaining in the buffer bottle to pollute a sample of next sampling operation, a sealing plug is arranged, so that a cuvette can be sealed when re-sampling is facilitated, the interior of the cuvette can be conveniently vacuumized in an air exhaust mode, the sample can be sucked into the cuvette, the sampling convenience is improved, and the sealing plug can be conveniently pulled out of the cuvette;

3. set up the pressure spring board, can conveniently drive the pressure spring board rebound on the guide rail through the ascending elasticity of reset spring, can make the connection between sealing plug and the cell can inseparable stopper when taking a sample through reset spring's elasticity, prevent gas leakage, can utilize the pressure spring board can also be convenient for fixed to the joint of cell, the setting controller, can conveniently open and close first solenoid valve and second solenoid valve and control valve, can conveniently control in proper order as required, and can also be convenient for through opening and closing of the controller control vacuum pump body, the staff's of being convenient for control operation sampling device.

Drawings

Fig. 1 is a schematic isometric view of the present invention;

FIG. 2 is a schematic view of the structure of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. an outer frame; 2. a vacuum pump body; 3. a first conduit; 4. a first solenoid valve; 5. cleaning the catheter; 6. a control valve; 7. a buffer bottle; 8. a second conduit; 9. a second solenoid valve; 10. a sampling tube; 11. a sealing plug; 12. a cuvette; 13. elastic pressing plate; 14. a guide rail; 15. a return spring; 16. and a controller.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an automatic sample introduction frame of a spectrophotometer comprises an outer frame 1, a vacuum pump body 2, a first guide pipe 3, a first electromagnetic valve 4, a cleaning guide pipe 5, a control valve 6, a buffer bottle 7, a second guide pipe 8, a second electromagnetic valve 9, a sampling pipe 10, a sealing plug 11, a cuvette 12, a spring plate 13, a guide rail 14, a reset spring 15 and a controller 16, wherein the vacuum pump body 2 is installed on the inner side of the outer frame 1, the upper end of the vacuum pump body 2 is connected with the first guide pipe 3, the outer wall of the first guide pipe 3 is provided with the first electromagnetic valve 4, the left end of the vacuum pump body 2 is connected with the cleaning guide pipe 5, the outer wall of the cleaning guide pipe 5 is provided with the control valve 6, the left end of the cleaning guide pipe 5 is provided with the buffer bottle 7, the upper end of the buffer bottle 7 is linked with the second guide pipe 8, the outer wall of the second guide pipe 8 is provided with the second electromagnetic valve 9, and the left side of the second guide pipe 8 is provided with the sampling pipe 10, a sealing plug 11 is arranged on the outer side of the sampling tube 10, a cuvette 12 is arranged below the sealing plug 11, an elastic pressing plate 13 is arranged below the cuvette 12, a guide rail 14 is connected to the outer side of the elastic pressing plate 13, a return spring 15 is arranged below the elastic pressing plate 13, and a controller 16 is arranged on the right side of the outer frame 1;

the buffer bottle 7 forms a communicating structure with the vacuum pump body 2 and the sampling tube 10 through the first guide tube 3 and the second guide tube 8 respectively, the distance between the opening end of the first guide tube 3 and the second guide tube 8 in the buffer bottle 7 and the bottle mouth of the buffer bottle 7 is 1cm, the vacuum pump body 2 is arranged, the buffer bottle 7 and the cuvette 12 can be pumped into a relatively vacuum state through the vacuum pump body 2, so that a sample can be conveniently sucked into the cuvette 12 through the siphon principle, the sample transfer can be completed, the buffer bottle 7 can be used for preventing the sample from being sucked out of the cuvette 12 to the outside due to the overlarge pressure of the vacuum pump body 2, the buffering effect can be achieved, the sample entering the buffer bottle 7 can be prevented from being sucked out again due to the fact that the first guide tube 3 and the second guide tube 8 are closer to the bottle mouth, the cleaning guide tube 5 penetrates through the inner cavity of the buffer bottle 7, the opening of the cleaning guide pipe 5 is flush with the inner wall of the bottom of the buffer bottle 7, and the cleaning guide pipe 5 is arranged, so that cleaning water and residual substances can be conveniently and completely sucked out of the buffer bottle 7 when the device is automatically cleaned, the buffer bottle 7 can be cleaned completely, and the phenomenon that sewage and the like remain in the buffer bottle 7 to pollute a sample of the next sampling operation is avoided;

the sampling tube 10 is connected with the sealing plug 11 in a clamping manner, the sealing plug 11 is in an inverted trapezoid structure, the sealing plug 11 is arranged, so that the cuvette 12 can be sealed when re-sampling is performed, vacuum can be generated in the cuvette 12 in a manner of air suction, a sample can be sucked into the cuvette, convenience in sampling is improved, the sealing plug 11 can be conveniently pulled out of the cuvette 12, the elastic pressing plate 13 forms an elastic sliding structure with the guide rail 14 through the reset spring 15, the elastic pressing plate 13 is connected with the sampling tube 10 in a clamping manner, the elastic pressing plate 13 is arranged, the elastic pressing plate 13 can be conveniently driven to move upwards on the guide rail 14 through the upward elastic force of the reset spring 15, the connection between the cuvette 12 and the sampling tube 11 can be tightly plugged during sampling through the elastic force of the reset spring 15, and air leakage is prevented, can utilize the bullet clamp plate 13 can also be convenient for fixed to the joint of cell 12, the connected mode between controller 16 and first solenoid valve 4 and second solenoid valve 9 and the control valve 6 is electric connection, and controller 16 includes control panel unit and central processing unit, set up controller 16, can conveniently open and close first solenoid valve 4 and second solenoid valve 9 and control valve 6, can conveniently control in proper order as required, and can also be convenient for open and close through controller 16 control vacuum pump body 2, the staff of being convenient for controls operation sampling device.

The working principle is as follows: for the automatic sample introduction rack of the spectrophotometer, firstly, when sampling and introducing, a new cuvette 12 needs to be taken out, the elastic pressing plate 13 is pressed by fingers to move downwards against the elastic force of the return spring 15, then the cuvette 12 is clamped on the elastic pressing plate 13, then the elastic pressing plate 13 is loosened, the elastic pressing plate 13 moves upwards on the guide rail 14 under the elastic force of the return spring 15, the cuvette 12 is pressed on the sealing plug 11 for sealing, then the sampling tube 10 is put into the sample, then the first electromagnetic valve 4 on the first guide tube 3 and the second electromagnetic valve 9 on the second guide tube 8 are opened through the controller 16, the vacuum pump body 2 in the outer frame 1 is opened, air in the buffer bottle 7 and the cuvette 12 is pumped out through the conduction of the first guide tube 3 and the second guide tube 8, then the sample is sucked into the cuvette 12 according to the siphon principle to finish sampling, then the use process of whole spectrophotometer autoinjection frame is just so accomplished to the application process that the hand pressed the bullet clamp plate 13 again, takes out the cell 12 and puts into the spectrophotometer than the appearance, when needs utilized the device to get different samples, need open control valve 6 to open vacuum pump body 2 will wash water suction and carry out rinse thoroughly in the buffer bottle 7, and will wash water and flow out through wasing pipe 5, prevent that remaining sample from producing the influence to subsequent sample.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a spectrophotometer autoinjection frame, includes outer frame (1), cushion flask (7) and suppressing plate (13), its characterized in that: the inner side of the outer frame (1) is provided with a vacuum pump body (2), the upper end of the vacuum pump body (2) is connected with a first guide pipe (3), the outer wall of the first guide pipe (3) is provided with a first electromagnetic valve (4), the left end of the vacuum pump body (2) is connected with a cleaning guide pipe (5), the outer wall of the cleaning guide pipe (5) is provided with a control valve (6), the buffer bottle (7) is arranged at the left end of the cleaning guide pipe (5), the upper end of the buffer bottle (7) is connected with a second guide pipe (8), the outer wall of the second guide pipe (8) is provided with a second electromagnetic valve (9), the left side of the second guide pipe (8) is provided with a sampling pipe (10), the outer side of the sampling pipe (10) is provided with a sealing plug (11), a cuvette (12) is arranged below the sealing plug (11), a spring pressing plate (13) is arranged below the cuvette (12), and the outside of suppressing board (13) is connected with guide rail (14), the below of suppressing board (13) is provided with reset spring (15), controller (16) are installed on the right side of outer frame (1).

2. The automated sample introduction rack of a spectrophotometer according to claim 1, characterized in that: the buffer bottle (7) is respectively communicated with the vacuum pump body (2) and the sampling tube (10) through a first guide tube (3) and a second guide tube (8) to form a communicating structure, and the distance between the opening end of the first guide tube (3) and the opening end of the second guide tube (8) in the buffer bottle (7) and the bottle mouth of the buffer bottle (7) is 1 cm.

3. The automated sample introduction rack of a spectrophotometer according to claim 1, characterized in that: the cleaning guide pipe (5) is communicated with the inner cavity of the buffer bottle (7), and the opening of the cleaning guide pipe (5) is flush with the inner wall of the bottom of the buffer bottle (7).

4. The automated sample introduction rack of a spectrophotometer according to claim 1, characterized in that: the sampling tube (10) is connected with the sealing plug (11) in a clamping manner, and the sealing plug (11) is of an inverted trapezoidal structure.

5. The automated sample introduction rack of a spectrophotometer according to claim 1, characterized in that: the elastic pressing plate (13) is connected with the guide rail (14) through a return spring (15) in a clamping manner to form an elastic sliding structure.

6. The automated sample introduction rack of a spectrophotometer according to claim 1, characterized in that: the controller (16) is electrically connected with the first electromagnetic valve (4), the second electromagnetic valve (9) and the control valve (6), and the controller (16) comprises a control panel unit and a central processing unit.

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