CN209945791U

CN209945791U - Sampling device of atomic fluorescence spectrophotometer

Info

Publication number: CN209945791U
Application number: CN201920437540.4U
Authority: CN
Inventors: 刘敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-01-14
Anticipated expiration: 2029-11-07

Abstract

The utility model relates to a sampling device of atomic fluorescence spectrophotometer, which comprises a supporting seat and a device body, wherein a screw rod is vertically arranged at one side inside the device body, a driving motor is arranged at the top of the device body at one end of the screw rod, a slide bar is vertically fixed inside the device body at one side of the device body, which is far away from the screw rod, a supporting seat is arranged inside the device body above a sample tank, connecting seats which are respectively matched with the screw rod and the slide bar are fixed at both ends of the supporting seat, a reset spring is arranged inside a groove, a sampling tube is inserted at the inner side of the reset spring, a cover body is arranged at the bottom of the supporting seat outside the groove, a first sampling pipeline, a second sampling pipeline and a third sampling pipeline are respectively arranged at the inner vertical level of the sampling tube, the utility model discloses conveniently carries out layered sampling on sample solution, and improves the accuracy of analysis, the sample tank is convenient to correct and position, and the use is convenient.

Description

Sampling device of atomic fluorescence spectrophotometer

Technical Field

The utility model relates to an atomic fluorescence spectrophotometer's sampling equipment technical field specifically is an atomic fluorescence spectrophotometer's sampling device.

Background

The atomic fluorescence spectrophotometer is a device which reduces an element to be analyzed in a sample solution into volatile covalent gaseous hydride by using potassium borohydride or sodium borohydride as a reducing agent and atomizes the volatile covalent gaseous hydride, wherein the sample solution is sampled by a sampling device.

The sampling device of the existing atomic fluorescence spectrophotometer samples a plurality of same or different sample solutions through a sampling tube, so that the solutions are analyzed through the comparison of the sample solutions for many times, the sample solutions are easily precipitated in the actual process, the gradient difference is formed, and the accuracy of the solution analysis comparison is influenced.

Disclosure of Invention

An object of the utility model is to provide an atomic fluorescence spectrophotometer's sampling device to solve the current atomic fluorescence spectrophotometer's that proposes in the above-mentioned background art sampling device through the sampling tube to a plurality of the same or different sample solutions take a sample, thereby the contrast through sample solution many times is analyzed its solution, takes place the sediment easily at actual in-process sample solution, and it is poor to form the gradient, influences the accuracy problem of solution analysis contrast.

In order to achieve the above object, the utility model provides a following technical scheme:

a sampling device of an atomic fluorescence spectrophotometer comprises a supporting seat and a device body, wherein a base is arranged at the bottom of the device body, a sample tank is arranged at the top of the base at the inner side of the device body, a screw rod is vertically arranged at one side inside the device body, a driving motor is arranged at the top of the device body at one end of the screw rod, the output end of the driving motor is connected with the screw rod, a slide rod is vertically fixed inside the device body at one side of the device body away from the screw rod, a supporting seat is arranged inside the device body above the sample tank, connecting seats which are respectively matched with the screw rod and the slide rod are respectively fixed at two ends of the supporting seat, a groove is arranged at the middle position of the supporting seat, a reset spring is arranged inside the groove, a sampling tube penetrates through the inner side of the reset spring, and one end of the, the top of the supporting seat at two sides of the groove is connected with a telescopic rod, one end of the telescopic rod is connected with the top end inside the device body, the bottom of the supporting seat at the outer side of the groove is provided with a cover body, the vertical level inside the sampling pipe is respectively provided with a first sampling pipeline, a second sampling pipeline and a third sampling pipeline, the sampling pipes at one sides of the first sampling pipeline, the second sampling pipeline and the third sampling pipeline are internally provided with pressure transmission pipelines, the pressure transmission pipelines are respectively and horizontally connected with the outlet positions of the first sampling pipeline and the second sampling pipeline, the connecting positions of the pressure transmission pipelines and the first sampling pipeline and the second sampling pipeline are all connected with threaded pipes, one end of each threaded pipe, far away from the pressure transmission pipelines, is connected with a piston in interference fit with the outlet inner diameters of the first sampling pipeline and the second sampling pipeline, the top of the device body at one side of the driving motor is, and the device body top horizontal installation of gaseous booster pump one side has three drawing liquid pump, and is three the input of drawing liquid pump and the output of gaseous booster pump all are connected with first sample pipeline, second sample pipeline, third sample pipeline and pressure delivery pipeline respectively through the sample hose, the device body top of drawing liquid pump one side is provided with liquid collecting box, and liquid collecting box's top all through pipe and three the output of drawing liquid pump is connected, the welding of one side of device body has the controller, and the controller is connected with driving motor, gaseous booster pump and drawing liquid pump electricity all.

Preferably, the four corners of the bottom of the base are provided with supporting discs.

Preferably, the cover body is distributed in a bell mouth shape along the depth of the cover body.

Preferably, all of the first sampling pipeline, the second sampling pipeline and the third sampling pipeline are in an L-shaped distribution and extend to the side surface of the sampling pipe.

Preferably, the connecting seat corresponding to the screw rod is internally provided with an internal thread matched with the external thread of the screw rod, and the connecting seat corresponding to the slide rod is provided with a through hole matched with the slide rod.

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

1. the utility model discloses an atomic fluorescence spectrophotometer's sampling device sets up first sample pipeline respectively through the vertical level in the inside of sampling tube, second sample pipeline and third sample pipeline, and first sample pipeline, the inside pressure transmission pipeline that is provided with of sampling tube of second sample pipeline and third sample pipeline one side, and pressure transmission pipeline respectively with first sample pipeline and second sample pipeline exit position department horizontally connect, be convenient for carry out the layering sample to the solution of sample jar, the accuracy of analysis and detection is improved.

2. The utility model discloses an atomic fluorescence spectrophotometer's sampling device, through all connecting the screwed pipe in defeated pressure pipeline and first sample pipeline and second sample pipeline hookup location department, and the screwed pipe is kept away from defeated one end of pressing the pipeline and is connected and first sample pipeline and second sample pipeline export internal diameter interference fit's piston, is convenient for prevent that the solution of different gradients from getting into first sample pipeline and second sample pipeline, improves the accuracy of analysis and detection.

3. The utility model discloses an atomic fluorescence spectrophotometer's sampling device, through the supporting seat bottom in the recess outside sets up the cover body, and the cover body is the horn mouth along its degree of depth and distributes, is convenient for correct and fix a position convenient to use to the sample jar.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the sampling tube structure of the present invention.

Fig. 3 is a schematic view of the overlooking structure of the device body of the present invention.

In the figure: 1-support plate, 2-screw rod, 3-cover body, 4-connecting seat, 5-controller, 6-reset spring, 7-driving motor, 8-gas booster pump, 9-liquid pump, 10-liquid collecting box, 11-sampling hose, 12-telescopic rod, 13-groove, 14-supporting seat, 15-sampling tube, 16-slide bar, 17-device body, 18-sample tank, 19-base, 20-screwed pipe, 21-first sampling pipeline, 22-pressure conveying pipeline, 23-second sampling pipeline, 24-third sampling pipeline and 25-piston.

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.

The sampling device of atomic fluorescence spectrophotometer shown in fig. 1-3 comprises a supporting seat 14 and a device body 17, wherein a base 19 is arranged at the bottom of the device body 17, a sample tank 18 is arranged at the top of the base 19 at the inner side of the device body 17, a screw rod 2 is vertically arranged at one side inside the device body 17, a driving motor 7 is arranged at the top of the device body 17 at one end of the screw rod 2, the output end of the driving motor 7 is connected with the screw rod 2, a slide rod 16 is vertically fixed inside the device body 17 at the side of the device body 17 far away from the screw rod 2, a supporting seat 14 is arranged inside the device body 17 above the sample tank 18, connecting seats 4 respectively matched with the screw rod 2 and the slide rod 16 are fixed at two ends of the supporting seat 14, a groove 13 is arranged at the middle position of the supporting seat 14, a return spring 6 is arranged inside the groove 13, and a sampling tube 15 is inserted, one end of the sampling pipe 15 extends to the bottom of the supporting seat 14, the top of the supporting seat 14 at two sides of the groove 13 is connected with the telescopic rod 12, one end of the telescopic rod 12 is connected with the top end inside the device body 17, the bottom of the supporting seat 14 at the outer side of the groove 13 is provided with the cover body 3, the inside of the sampling pipe 15 is vertically and horizontally provided with a first sampling pipeline 21, a second sampling pipeline 23 and a third sampling pipeline 24, a pressure delivery pipeline 22 is arranged inside the sampling pipe 15 at one side of the first sampling pipeline 21, the second sampling pipeline 23 and the third sampling pipeline 24, the pressure delivery pipeline 22 is horizontally connected with the outlet positions of the first sampling pipeline 21 and the second sampling pipeline 23 respectively, the connecting positions of the pressure delivery pipeline 22 and the first sampling pipeline 21 and the second sampling pipeline 23 are connected with threaded pipes 20, one end of the threaded pipe 20 far away from the pressure delivery pipeline 22 is connected with a piston 25 which is in interference fit with the outlet inner diameters of the first sampling pipeline 21 and, gas booster pump 8 is installed at the 17 top of the device body of driving motor 7 one side, and the 17 top horizontal installations of the device body of 8 one sides of gas booster pump have three drawing liquid pump 9, the input of three drawing liquid pump 9 and the output of gas booster pump 8 all through sample hose 11 respectively with first sampling pipe 21, second sampling pipe 23, third sampling pipe 24 and defeated pressure pipeline 22 are connected, the 17 top of the device body of drawing liquid pump 9 one side is provided with liquid collecting box 10, and the top of liquid collecting box 10 all is connected with the output of three drawing liquid pump 9 through the pipe, the welding of one side of device body 17 has controller 5, and controller 5 and driving motor 7, gas booster pump 8 and drawing liquid pump 9 are all electrically connected.

The utility model discloses in, the four corners position department of base 19 bottom all is provided with supporting disk 1, and cover body 3 is the horn mouth along its degree of depth and distributes, and first sampling pipeline 21, second sampling pipeline 23 and third sampling pipeline 24 all are L type and distribute and extend to the side of sampling tube 15, and connecting seat 4 that screw rod 2 corresponds is inside to be provided with the internal thread that mutually supports with 2 external screw threads of screw rod, and connecting seat 4 that slide bar 16 corresponds is provided with the through-hole of mutually supporting with slide bar 16.

The utility model discloses a theory of operation does: at first place sample jar 18 on the inboard base 19 of device body 17, then control driving motor 7 through controller 5 and carry out work, thereby drive screw rod 2 and rotate clockwise, thereby drive supporting seat 14 downstream through connecting seat 4 of mutually supporting, through connecting seat 4 corresponding to slide bar 16 along slide bar 16 downstream, then cover sample jar 18 through the cover body 3, simultaneously through being the horn mouth form with cover body 3 setting, conveniently fix a position sample jar 18 and make the centre of location and base 19 that sample jar 18 can be accurate, simultaneously through the both ends of telescopic link 12 respectively with device body 17 internal connection and supporting seat 14 be connected, the stability that supporting seat 14 rises and descends has been increased, will work through controller 5 control gas booster pump 8 before the sample, thereby with pressure through sample hose 11 suction pressure pipeline 22 inside thereby make screwed pipe 20 expand and promote piston 25 to first sample pipeline 21 and the second sample pipeline 21 The inlet positions of the two sampling pipelines 23 block the inlets of the first sampling pipeline 21 and the second sampling pipeline 23, so as to prevent the upper layer of sample solution remained in the first sampling pipeline 21 and the second sampling pipeline 23 from affecting the detection accuracy when the sampling pipe 15 is inserted into the sample tank 18, when the sampling pipe 15 is completely inserted into the sample tank 18, the controller 5 controls the gas booster pump 8 and the three liquid pumps 9 to work, the gas booster pump 8 pumps the pressure in the pressure transmission pipeline 22 and the threaded pipe 20 away, so as to move the piston 25 inwards, the three liquid pumps 9 respectively pump the sample solution in the sample tank 18 into the liquid collection box 10 through the sampling hose 11 to sample the sample solution with different gradients in the sample tank 18 through the first sampling pipeline 21, the second sampling pipeline 23 and the third sampling pipeline 24, and the controller 5 controls the gas booster pump 8 and the liquid pumps 9 to stop working after sampling is completed, the controller 5 controls the driving motor 7 to operate, so as to drive the screw rod 2 to rotate anticlockwise, so as to lift the supporting seat 14, and thus, the sample tank 18 is replaced and sampled.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an atomic fluorescence spectrophotometer's sampling device, includes supporting seat (14) and device body (17), its characterized in that: the device is characterized in that a base (19) is arranged at the bottom of the device body (17), a sample tank (18) is placed at the top of the base (19) on the inner side of the device body (17), a screw rod (2) is vertically installed on one side inside the device body (17), a driving motor (7) is installed at the top of the device body (17) at one end of the screw rod (2), the output end of the driving motor (7) is connected with the screw rod (2), a slide rod (16) is vertically fixed inside the device body (17) on one side, away from the screw rod (2), of the device body (17), a supporting seat (14) is arranged inside the device body (17) above the sample tank (18), connecting seats (4) which are respectively matched with the screw rod (2) and the slide rod (16) are fixed at two ends of the supporting seat (14), a groove (13) is formed in the middle position, and a reset spring (6) is arranged in the groove (13), a sampling tube (15) is inserted into the inner side of the reset spring (6), one end of the sampling tube (15) extends to the bottom of the supporting seat (14), the top parts of the supporting seats (14) at the two sides of the groove (13) are connected with telescopic rods (12), one end of each telescopic rod (12) is connected with the top end of the inner part of the device body (17), a cover body (3) is arranged at the bottom of the supporting seat (14) at the outer side of the groove (13), a first sampling pipeline (21), a second sampling pipeline (23) and a third sampling pipeline (24) are respectively arranged in the vertical horizontal direction in the sampling tube (15) at one side of the first sampling pipeline (21), the second sampling pipeline (23) and the third sampling pipeline (24), a pressure conveying pipeline (22) is respectively and is horizontally connected with the outlet positions of the first sampling pipeline (21) and the second sampling pipeline (23), the device is characterized in that the connecting positions of the pressure transmission pipeline (22) and the first sampling pipeline (21) and the second sampling pipeline (23) are all connected with a threaded pipe (20), one end of the threaded pipe (20), which is far away from the pressure transmission pipeline (22), is connected with a piston (25) in interference fit with the inner diameters of outlets of the first sampling pipeline (21) and the second sampling pipeline (23), a gas booster pump (8) is installed at the top of the device body (17) on one side of the driving motor (7), three liquid pumps (9) are horizontally installed at the top of the device body (17) on one side of the gas booster pump (8), the input ends of the three liquid pumps (9) and the output ends of the gas booster pumps (8) are respectively connected with the first sampling pipeline (21), the second sampling pipeline (23), the third sampling pipeline (24) and the pressure transmission pipeline (22) through sampling hoses (11), and a liquid collecting box (10) is arranged at the top of the device body (17) on one side of the, and the top of the liquid collecting box (10) is connected with the output end of the liquid pump (9) through a guide pipe, a controller (5) is welded at one side of the device body (17), and the controller (5) is electrically connected with the driving motor (7), the gas booster pump (8) and the liquid pump (9).

2. The sampling device of atomic fluorescence spectrophotometer according to claim 1, wherein: and four corners of the bottom of the base (19) are provided with supporting discs (1).

3. The sampling device of atomic fluorescence spectrophotometer according to claim 1, wherein: the cover body (3) is distributed in a horn shape along the depth of the cover body.

4. The sampling device of atomic fluorescence spectrophotometer according to claim 1, wherein: the first sampling pipeline (21), the second sampling pipeline (23) and the third sampling pipeline (24) are distributed in an L shape and extend to the side face of the sampling pipe (15).

5. The sampling device of atomic fluorescence spectrophotometer according to claim 1, wherein: the screw rod (2) is provided with a connecting seat (4) corresponding to the screw rod (2), the connecting seat (4) corresponding to the slide rod (16) is internally provided with an internal thread matched with the external thread of the screw rod (2), and the connecting seat (4) corresponding to the slide rod (16) is provided with a through hole matched with the slide rod (16).