CN211652908U

CN211652908U - Automatic sample injector

Info

Publication number: CN211652908U
Application number: CN201922081613.3U
Authority: CN
Inventors: 赵高锋
Original assignee: Shaanxi 10 Yifeng Industrial Co ltd
Current assignee: Shaanxi 10 Yifeng Industrial Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-10-09
Anticipated expiration: 2029-11-28

Abstract

The utility model belongs to the technical field of analytical instrument, in particular to an automatic sample injector, which comprises a base and an automatic lifting rod fixedly arranged on one side of the upper end surface of the base, wherein a cross arm is fixedly arranged at the output end of the automatic lifting rod, a sample injection needle is fixedly arranged on the cross arm, and a driving motor is fixedly arranged on one side of the upper end surface of the base, which is far away from the automatic lifting rod, and is electrically connected with an external power supply; it shakes even gear to be equipped with a plurality of through the inside at the storage cylinder, when placing the sample bottle in the storage cylinder, and with the fixed draw-in groove of shaking even gear top of sample bottle block, through shaking even motor, drive the driving gear and rotate, at the rotation in-process of driving gear, it shakes even gear and rotates to drive a plurality of, thereby it rotates to drive a plurality of to shake the sample bottle on the even gear, it shakes even to make the interior solvent that detects of sample bottle, the rethread advances the appearance needle and detects the solvent in the sample bottle after that, and the detection effect is improved.

Description

Automatic sample injector

Technical Field

The utility model belongs to the technical field of analytical instrument, concretely relates to automatic sample injector.

Background

Currently, in titration or other test analysis, a detection instrument is used to detect a detection sample, such as an atomic fluorescence spectrometer, and the sample to be detected is firstly stored in a test tube and then sampled and detected through a sample injection needle of the atomic fluorescence spectrometer.

The Chinese patent discloses an automatic sample injector (No. CN 206920458U), which is characterized in that a plurality of jacks are annularly arranged on a sample plate, sample bottles are placed in the jacks, and the sample plate is driven to rotate by a driving motor, so that a plurality of sample bottles can be loaded at one time for analysis test; improve the detection efficiency of detector, however, before carrying out sample detection, need shake even to the solvent in the sample bottle, otherwise can influence the testing result of detector for the testing result is inaccurate.

Accordingly, those skilled in the art have provided an autosampler to address the problems set forth in the background above.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an automatic sample injector has and to rock the sample bottle before treating to make the solution in the sample bottle rock evenly, improve the characteristics of the degree of accuracy of testing result.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic sample injector comprises a base and an automatic lifting rod fixedly mounted on one side of the upper end surface of the base, wherein a cross arm is fixedly mounted at the output end of the automatic lifting rod, a sample injection needle is fixedly mounted on the cross arm, a driving motor is fixedly mounted on one side, far away from the automatic lifting rod, of the upper end surface of the base, the driving motor is electrically connected with an external power supply, a rotating shaft is fixedly mounted at the output end of the driving motor, a sample placing mechanism is fixedly mounted at the other end of the rotating shaft, and the driving motor is fixedly connected with the sample placing mechanism through the rotating shaft; the sample placement mechanism includes chassis, solid fixed cylinder and places the board, gu fixed cylinder fixed mounting be in the up end on chassis, place board fixed mounting be in the top of solid fixed cylinder, the lower terminal surface center fixed mounting on chassis has the even motor of shaking, shake even motor and external power source electric connection, the output fixed mounting who shakes even motor has the driving gear, the driving gear is located gu fixed cylinder's inside, gu fixed cylinder's outside all is equipped with all around shakes even gear, shake even gear with driving gear meshing is connected, it connects to shake even gear rotation the up end on chassis.

Preferably, the placing plate is provided with an insertion hole, the insertion hole corresponds to the shaking gear, and a sample fixing sleeve is arranged in the insertion hole.

Preferably, the bearing is fixedly mounted outside the sample fixing sleeve, and the sample fixing sleeve is rotatably connected with the placing plate through the bearing.

Preferably, a rubber pad is fixedly arranged inside the sample fixing sleeve.

Preferably, a clamping groove is fixedly arranged at the top of the shaking-up gear and corresponds to the sample fixing sleeve.

Preferably, the number of the shaking gears is eight, and the eight shaking gears are symmetrically distributed outside the shaking gears.

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

shaking even gear through being equipped with a plurality of in the inside of storage cylinder, when placing the sample bottle in the storage cylinder, and fix the sample bottle block in shaking the draw-in groove at even gear top, the even motor is shaken in the start-up, it rotates to drive the driving gear, at the rotation in-process of driving gear, it shakes even gear and rotates to drive a plurality of through the meshing tooth drive on the driving gear, thereby it shakes the sample bottle on the even gear and rotates to drive a plurality of, make the interior solvent that treats of sample bottle shake even, the rethread advances the needle and detects the solvent in the sample bottle after that, improve the rate of accuracy of testing result.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a sample placement mechanism according to the present invention;

fig. 3 is a top view of the middle fixed cylinder of the present invention;

fig. 4 is a schematic structural diagram of the present invention.

In the figure: 1. a base; 2. an automatic lifting rod; 3. a cross arm; 4. a sample injection needle; 5. a sample placement mechanism; 51. a chassis; 52. a fixed cylinder; 53. placing the plate; 531. a jack; 54. shaking up a motor; 55. a driving gear; 56. shaking up the gears; 57. a card slot; 58. fixing a sample sleeve; 581. a rubber pad; 582. a bearing; 6. a drive motor; 61. a rotating shaft.

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. 1-4, the present invention provides the following technical solutions: an automatic sample injector comprises a base 1 and an automatic lifting rod 2 fixedly installed on one side of the upper end face of the base 1, wherein a cross arm 3 is fixedly installed at the output end of the automatic lifting rod 2, a sample injection needle 4 is fixedly installed on the cross arm 3, a driving motor 6 is fixedly installed on one side, away from the automatic lifting rod 2, of the upper end face of the base 1, the driving motor 6 is electrically connected with an external power supply, a rotating shaft 61 is fixedly installed at the output end of the driving motor 6, a sample placing mechanism 5 is fixedly installed at the other end of the rotating shaft 61, and the driving motor 6 is fixedly connected with the sample placing mechanism 5 through the rotating shaft 61; mechanism 5 is placed to sample includes chassis 51, the solid fixed cylinder 52 with place board 53, solid fixed cylinder 52 fixed mounting is in the up end of chassis 51, place board 53 fixed mounting is at the top of solid fixed cylinder 52, bottom terminal surface center department fixed mounting of chassis 51 has the even motor 54 of shaking, shake even motor 54 and external power source electric connection, the output fixed mounting who shakes even motor 54 has driving gear 55, driving gear 55 is located the inside of solid fixed cylinder 52, the outside of solid fixed cylinder 52 all is equipped with all around shakes even gear 56, it is connected with the driving gear 55 meshing to shake even gear 56, it rotates the up end of connecting at chassis 51 to shake even gear 56.

In this embodiment: when a sample bottle to be detected is placed in the sample fixing sleeve 58 on the placing plate 53 and then inserted downwards until being inserted into the clamping groove 57, the sample bottle is clamped and fixed in the shaking gears 56 and the placing plate 53, then the shaking motor 54 is started to drive the driving gear 55 to rotate, in the rotating process of the driving gear 55, a plurality of shaking gears 56 are driven to rotate under the action of meshing teeth on the driving gear 55, and then the sample bottle on the shaking gears 56 is driven to rotate, so that a solvent to be detected in the sample bottle is shaken uniformly, so that the sample to be detected can be shaken uniformly before detection, the detection accuracy of the instrument is improved, the working flow of the automatic lifting rod 2 and the sample injection needle 4 is the same as that of Chinese patent with the publication No. CN206920458U, the sample injection needle 4 on the cross arm 3 is driven to move up and down by the automatic lifting rod 2, and the sample injection needle 4 is inserted into the sample bottle, then the driving motor 6 drives the sample placing mechanism 5 to automatically make rotary motion so that the sample bottle can be positioned under the sampling needle 4, and the model of the shaking motor 54 and the driving motor 6 is YL-7112.

In fig. 1: the top of shaking up gear 56 is fixed with draw-in groove 57, and draw-in groove 57 is corresponding with sample fixed cover 58, and draw-in groove 57 is used for being connected the sample bottle with shaking up gear 56 for the sample bottle can block to be fixed at the top of shaking up gear 56.

In fig. 2: the placing plate 53 is provided with a jack 531, the jack 531 corresponds to the shaking-up gear 56, a sample fixing sleeve 58 is arranged in the jack 531, the sample fixing sleeve 58 is used for connecting the placing plate 53 and a sample bottle, and the top of the sample bottle can be supported and fixed when the sample bottle is inserted into the clamping groove 57, so that the sample bottle is prevented from being inclined.

In fig. 3: shake even gear 56's quantity and be eight, and eight shake even gear 56 and be the symmetric distribution in the outside of shaking even gear 56, shake even gear 56 and be used for driving the sample bottle and rotate for the solvent in the sample bottle mixes under the effect of centrifugal force, improves the detection accuracy of sample.

In fig. 4: the outside fixed mounting of the fixed cover 58 of sample has bearing 582, the fixed cover 58 of sample passes through bearing 582 and is connected with placing the board 53 rotation, the inside fixed mounting of the fixed cover 58 of sample has rubber pad 581, the fixed cover 58 of sample is under the effect of bearing 582, make the fixed cover 58 sliding connection of sample in jack 531, after fixing the fixed cover 58 of sample with the sample bottle, in the rotation in-process of shaking even gear 56, drive the sample bottle and rotate, because the sample bottle is fixed with the fixed cover 58 block of sample after, drive the fixed cover 58 of sample and rotate in jack 531.

The utility model discloses a theory of operation and use flow: when a sample bottle to be detected is placed in the sample fixing sleeve 58 on the placing plate 53 and then inserted downwards until being inserted into the clamping groove 57, so that the sample bottle is clamped and fixed in the shaking gear 56 and the placing plate 53, then the shaking motor 54 is started to drive the driving gear 55 to rotate, in the rotating process of the driving gear 55, a plurality of shaking gears 56 are driven to rotate under the action of meshing teeth on the driving gear 55, and then the sample bottle on the shaking gears 56 is driven to rotate, so that a solvent to be detected in the sample bottle is shaken uniformly, so that the sample to be detected can be shaken uniformly before detection, the detection accuracy of the instrument is improved, after the sample bottle is fixed by the sample fixing sleeve 58, in the rotating process of the shaking gears 56, the sample bottle is driven to rotate, because the sample bottle is clamped and fixed by the sample fixing sleeve 58, drive the fixed cover 58 of sample and rotate in jack 531 for the sample bottle can be on placing board 53 and move, and the inside fixed mounting of the fixed cover 58 of sample has rubber pad 581, can increase the frictional force of the fixed cover 58 of sample and sample bottle, makes the fixed effect of the fixed cover 58 of sample to sample bottle better.

Finally, it should be noted that: 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 may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an automatic sample injector, includes base (1) and fixed mounting base (1) up end one side automatic rising pole (2), the output fixed mounting of automatic rising pole (2) has xarm (3), fixed mounting has injection needle (4), its characterized in that on xarm (3): a driving motor (6) is fixedly installed on one side, far away from the automatic lifting rod (2), of the upper end face of the base (1), the driving motor (6) is electrically connected with an external power supply, a rotating shaft (61) is fixedly installed at the output end of the driving motor (6), a sample placing mechanism (5) is fixedly installed at the other end of the rotating shaft (61), and the driving motor (6) is fixedly connected with the sample placing mechanism (5) through the rotating shaft (61);

sample placement mechanism (5) include chassis (51), solid fixed cylinder (52) and place board (53), gu fixed cylinder (52) fixed mounting be in the up end of chassis (51), place board (53) fixed mounting be in the top of solid fixed cylinder (52), the lower terminal surface center department fixed mounting of chassis (51) has the even motor (54) of shaking, shake even motor (54) and external power source electric connection, the output fixed mounting who shakes even motor (54) has driving gear (55), driving gear (55) are located the inside of solid fixed cylinder (52), the outside of solid fixed cylinder (52) all is equipped with all around shakes even gear (56), shake even gear (56) with driving gear (55) meshing is connected, it rotates to connect to shake even gear (56) the up end of chassis (51).

2. The autosampler of claim 1, wherein: the placing plate (53) is provided with a jack (531), the jack (531) corresponds to the shaking gear (56), and a sample fixing sleeve (58) is arranged in the jack (531).

3. The autosampler of claim 2, wherein: the outside fixed mounting of fixed cover of sample (58) has bearing (582), fixed cover of sample (58) pass through bearing (582) with place board (53) and rotate and be connected.

4. The autosampler of claim 2, wherein: and a rubber pad (581) is fixedly arranged in the sample fixing sleeve (58).

5. The autosampler of claim 2, wherein: the top of the shaking-up gear (56) is fixedly provided with a clamping groove (57), and the clamping groove (57) corresponds to the sample fixing sleeve (58).

6. The autosampler of claim 1, wherein: the number of the shaking gears (56) is eight, and the eight shaking gears (56) are symmetrically distributed outside the shaking gears (56).