CN220854902U - Multifunctional sample injection instrument for analysis - Google Patents
Multifunctional sample injection instrument for analysis Download PDFInfo
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- CN220854902U CN220854902U CN202322423976.7U CN202322423976U CN220854902U CN 220854902 U CN220854902 U CN 220854902U CN 202322423976 U CN202322423976 U CN 202322423976U CN 220854902 U CN220854902 U CN 220854902U
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- 238000002347 injection Methods 0.000 title claims abstract description 200
- 239000007924 injection Substances 0.000 title claims abstract description 200
- 238000004458 analytical method Methods 0.000 title claims abstract description 36
- 239000012895 dilution Substances 0.000 claims abstract description 73
- 238000010790 dilution Methods 0.000 claims abstract description 73
- 239000007788 liquid Substances 0.000 claims abstract description 53
- 239000012452 mother liquor Substances 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims description 95
- 230000005540 biological transmission Effects 0.000 claims description 21
- 230000002572 peristaltic effect Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 12
- 238000007865 diluting Methods 0.000 claims description 8
- 239000010413 mother solution Substances 0.000 claims description 4
- 239000000523 sample Substances 0.000 description 227
- 238000005070 sampling Methods 0.000 description 22
- 230000033001 locomotion Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004445 quantitative analysis Methods 0.000 description 4
- 239000012488 sample solution Substances 0.000 description 3
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
The utility model relates to the technical field of sample injection of analytical instruments, and discloses a multifunctional sample injection instrument for analysis, which comprises a sample injection instrument body; the first sample injection arm is arranged on the sample injection instrument body, a dilution needle is carried on the first sample injection arm, the first sample injection arm can drive the dilution needle to move along the X direction relative to the sample injection instrument body, the dilution needle can move along the Y direction and the Z direction relative to the first sample injection arm respectively, and the dilution needle is used for sucking the sample mother liquor and the dilution liquid to a mixing position to form a mixed sample; the second sample injection arm is arranged on the sample injection instrument body, the sample injection needle is carried on the second sample injection arm, the second sample injection arm can drive the sample injection needle to move along the X direction relative to the sample injection instrument body, the sample injection needle can respectively move along the Y direction and the Z direction relative to the second sample injection arm, and the sample injection needle is used for sucking the mixed sample and the sample to be tested to the analyzer. According to the utility model, the problem of inconvenient operation caused by the combination of the sample injector and other equipment such as the diluter is solved by adding a sample injection arm.
Description
Technical Field
The utility model relates to the technical field of analysis instrument sampling, in particular to a multifunctional sampling instrument for analysis.
Background
The automatic sampler is an analyzer necessary configuration, and the analyzer needs the automatic sampler to sample different samples. When different samples are configured, the automatic sample injector is often matched with other equipment such as an automatic diluter to finish the functions of gradient dilution and sample injection of the sample concentration, so that quantitative analysis of the samples is performed. The combination of the autosampler and the autodiluter results in the operator having to operate on different equipment and is inconvenient to use.
Disclosure of utility model
The utility model mainly aims to provide a multifunctional sample injection instrument for analysis, which aims to solve the problem that an operator needs to operate on different equipment and is inconvenient to use because the multifunctional sample injection instrument needs to be combined with other automatic diluters when the automatic sample injection instrument performs quantitative analysis.
In order to achieve the above object, the present utility model provides a multifunctional sample injector for analysis, comprising:
A sample injection instrument body;
The first sample injection arm is arranged on the sample injection instrument body, a dilution needle is carried on the first sample injection arm, the first sample injection arm can drive the dilution needle to move relative to the sample injection instrument body along the X direction, the dilution needle can move relative to the first sample injection arm along the Y direction and the Z direction respectively, and the dilution needle is used for sucking the sample mother solution and the dilution solution to a mixing position to form a mixed sample;
The second sample injection arm is arranged on the sample injection instrument body, a sample injection needle is carried on the second sample injection arm, the second sample injection arm can drive the sample injection needle to move along the X direction relative to the sample injection instrument body, the sample injection needle can respectively move along the Y direction and the Z direction relative to the second sample injection arm, and the sample injection needle is used for sucking a mixed sample to an analyzer.
Preferably, the multifunctional sample injector for analysis further comprises a sliding rail, the sliding rail is arranged on the sample injector body along the X direction, and the first sample injection arm is in sliding connection with the sample injector body through the sliding rail, so that the first sample injection arm drives the dilution needle to move along the X direction relative to the sample injector body.
Preferably, the multifunctional sample injection instrument further comprises a transmission belt and a transmission wheel, wherein the transmission belt is connected with the dilution needle, and the transmission wheel is used for realizing rotation of the transmission belt;
The transmission belt is arranged along the Y direction, and can rotate along the Y direction to drive the dilution needle to move along the Y direction relative to the first sample injection arm.
Preferably, the multifunctional sample injector for analysis further comprises a spline and a spline shaft, a space for placing the spline shaft is arranged in the first sample injection arm, the spline shaft is arranged along the Y direction, the spline is arranged on the dilution needle along the Z direction, the spline can move along the Z direction through the rotation of the spline shaft, and the dilution needle can move relative to the first sample injection arm along the Z direction through the spline.
Preferably, the multifunctional sample injector for analysis further comprises a plunger pump assembly, wherein the plunger pump assembly is arranged on the sample injector body;
The plunger pump assembly comprises a plunger pump, an electromagnetic valve and a motor, wherein the plunger pump is connected with the diluting needle through a hose, the electromagnetic valve is arranged on the hose, and the motor controls the plunger pump and the electromagnetic valve to be opened or closed, so that the diluting needle can quantitatively absorb the sample mother liquor and the diluting liquid through the opening or closing of the plunger pump and the electromagnetic valve.
Preferably, the multifunctional sample injection instrument for analysis further comprises a peristaltic pump, wherein the peristaltic pump is connected with the sample injection needle through a hose and is used for enabling the sample injection needle to generate suction;
The number of the peristaltic pumps corresponds to the number of the sample injection needles.
Preferably, the multifunctional sample injector for analysis further comprises a movable cleaning device and a connecting piece; the movable cleaning device is connected with the second sample injection arm through the connecting piece, a cleaning channel is arranged in the movable cleaning device, the sample injection needle is communicated with the cleaning channel, and the sample injection needle is used for sucking cleaning liquid in the cleaning channel into the sample injection needle for cleaning.
Preferably, the cleaning device is provided with a through hole communicated with the cleaning channel, and the sample injection needle passes through the through hole to be communicated with the cleaning channel;
The movable cleaning device is provided with a liquid inlet pipe, the liquid inlet pipe is communicated with the cleaning channel, and the liquid inlet pipe is used for guiding the cleaning liquid into the cleaning channel.
Preferably, the cleaning liquid flows into the sample injection needle through the needle opening of the sample injection needle for cleaning; or, the sample injection needle is provided with a side opening, the needle opening is closed, and the cleaning liquid enters the sample injection needle through the side opening to clean the sample injection needle.
Preferably, the mobile cleaning device further comprises at least two sealing rings, and the sealing rings are used for sealing the gap between the sample injection needle and the through hole.
According to the technical scheme, the sample injection instrument body is provided with the first sample injection arm and the second sample injection arm, a plurality of dilution needles can be carried on the first sample injection arm, a plurality of sample injection needles can be carried on the second sample injection arm, the first sample injection arm can drive the dilution needles to move along the X direction relative to the sample injection instrument body, the dilution needles move along the Y direction and the Z direction relative to the first sample injection arm respectively, and the dilution needles absorb sample mother solutions and dilution solutions which are positioned at different positions of the sample tray to a mixing position to form different mixed samples through movement along the X direction, the Y direction and the Z direction respectively. According to the utility model, the sample injection arm is additionally arranged, so that the sample injection and dilution functions are integrated, and the problem that an operator needs to operate on different equipment when carrying out quantitative analysis and is inconvenient to use is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a multifunctional sample injector for analysis according to the present utility model;
FIG. 2 is a schematic diagram of a multifunctional sample injector for analysis according to an embodiment of the present utility model;
FIG. 3 is a schematic structural view of another embodiment of a multifunctional sample injector for analysis according to the present utility model;
FIG. 4 is a schematic structural view of a multifunctional sample injector for analysis according to another embodiment of the present utility model;
FIG. 5 is a schematic diagram of a multifunctional sample injector for analysis according to another embodiment of the present utility model;
fig. 6 is a schematic structural diagram of another embodiment of a multifunctional sample injector for analysis according to the present utility model.
Reference numerals illustrate:
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The automatic sampler is an analyzer necessary configuration, and the analyzer needs the automatic sampler to sample different samples. When different samples are configured, the automatic sample injector is often matched with other equipment such as an automatic diluter to finish the functions of gradient dilution and sample injection of the sample concentration, so that quantitative analysis of the samples is performed. The combination of the autosampler and the autodiluter results in the operator having to operate on different equipment and is inconvenient to use.
In order to solve the above problems, referring to fig. 1, the present utility model provides a multifunctional sample injector for analysis, which includes a sample injector body 10;
The first sample injection arm 20 is arranged on the sample injection instrument body 10, a dilution needle 40 is carried on the first sample injection arm 20, the first sample injection arm 20 can drive the dilution needle 40 to move relative to the sample injection instrument body 10 along the X direction, the dilution needle 40 can respectively move relative to the first sample injection arm 20 along the Y direction and the Z direction, and the dilution needle 40 is used for sucking the sample mother solution and the dilution solution to a mixing position to form a mixed sample;
The second sample injection arm 30 is arranged on the sample injection instrument body 10, the sample injection needle 5 is carried on the second sample injection arm 30, the second sample injection arm 30 can drive the sample injection needle 50 to move relative to the sample injection instrument body 10 along the X direction, the sample injection needle 50 can respectively move relative to the second sample injection arm 30 along the Y direction and the Z direction, and the sample injection needle 50 is used for sucking a mixed sample to the analyzer.
Specifically, referring to fig. 6, the first sample injection arm 20 drives the dilution needle 40 to move along the X direction relative to the sample injection instrument body 10, the dilution needle 40 moves on the first sample injection arm 20 along the Y direction and the Z direction relative to the first sample injection arm 20, the dilution needle 40 can reach the standard mother liquid level 163 and the sample position 162 at different positions of the sample tray 160 by moving along the X direction and the Y direction, the dilution needle 40 can make the needle opening contact the liquid level by moving along the Z direction, the dilution needle 40 sucks the sample mother liquid and the dilution liquid to the same position by moving along the X, Y and the Z direction respectively and mixes the sample mother liquid and the dilution liquid into a mixed sample, and functions of re-sampling after dilution, configuring the gradient concentration standard sample and the like are realized.
According to the utility model, by increasing the dimension of the feeding arm, the problems in the prior art are solved: the combination of the automatic sample injector and the automatic diluter has the advantages that operators need to operate on different equipment, the use is inconvenient, and the size of an analyzer using the sample injector is reduced.
It should be noted that the sample injection needle 50 may also be used to suck the sample to be measured, which is not diluted, to the analyzer.
Preferably, referring to fig. 1 and 2, in an embodiment, the multifunctional sample injector for analysis further includes a sliding rail 60, the sliding rail 60 is disposed on the sample injector body 10 along the X direction, and the first sample arm 20 is slidably connected with the sample injector body 10 through the sliding rail 60, so that the first sample arm 20 drives the dilution needle 40 to move along the X direction relative to the sample injector body 10.
In this embodiment, the sample injector body is provided with a first motor 120, a roller and a transmission chain, the first motor 120 is connected with the roller, the transmission chain is arranged along the X direction, the transmission chain is connected with the first sample injector arm 20, the first motor 120 drives the roller to rotate, and the roller drives the transmission chain to rotate along the X direction relative to the sample injector body 10, so as to drive the first sample injector arm 20 to move along the X relative to the sample injector body 10 on the slide rail 60.
Preferably, referring to fig. 1, the multifunctional sample injector further comprises a driving belt and a driving wheel, wherein the driving belt is connected with the dilution needle 40, and the driving wheel is used for realizing the rotation of the driving belt;
The transmission belt is arranged along the Y direction, and can rotate along the Y direction to drive the dilution needle 40 to move along the Y direction relative to the first sample injection arm 20.
In this embodiment, the first sample feeding arm 20 is provided with a space for accommodating a driving belt, such as a chute, and the driving belt is disposed in the space along the Y direction. The dilution needle 40 is located in this space and is fixedly connected to the drive belt by means of a sliding block. The second motor 130 is fixed on the sample injector body 10 and connected with the driving wheel, the second motor 130 drives the driving wheel to rotate, the driving wheel drives the driving belt to rotate, and the driving belt rotates to drive the sliding block to move along the Y direction, so that the dilution needle 40 moves along the Y direction relative to the first sample injection arm 20.
Preferably, referring to fig. 1, the multifunctional sample injector for analysis further includes a spline and a spline shaft, the spline shaft is disposed in the first sample injection arm 20 along the Y direction, the spline is disposed on the dilution needle 40 along the Z direction, the spline can move along the Z direction through the running fit with the spline shaft, and the dilution needle 40 can move relative to the first sample injection arm 20 along the Z direction through the spline.
In this embodiment, the sample injector body 10 is provided with a third motor 140, the first sample injection arm 20 is provided with a space for accommodating a spline shaft, the spline shaft is arranged in the space of the first sample injection arm 20 along the Y direction and penetrates out of the first sample injection arm 20 to be connected with the third motor 140, the spline is arranged on the dilution needle 40 along the Z direction, the third motor 140 drives the spline shaft to rotate, and the spline can move along the Z direction through the rotation of the spline shaft, so that the dilution needle 40 moves along the Z direction relative to the first sample injection arm 20.
It should be noted that, the driving belt and the spline shaft are respectively disposed at different positions in the Z direction in the first sample injection arm 20, the sliding block and the spline are respectively disposed at different positions of the diluting needle 40, and the matching of the driving belt and the sliding block and the matching of the spline shaft and the spline are mutually independent, that is, the motion of the diluting needle 40 along the Y direction and the motion along the Z direction are mutually independent and do not interfere with each other.
Further, referring to fig. 2, the multifunctional sample injector for analysis further includes a plunger pump assembly 70, where the plunger pump assembly 70 is disposed on the sample injector body 10;
The plunger pump assembly 70 comprises a plunger pump 72, an electromagnetic valve 71 and a control motor 73, wherein the plunger pump 72 is connected with the dilution needle 40 through a hose, the electromagnetic valve 71 is arranged on the hose, the control motor 73 controls the plunger pump 72 and the electromagnetic valve 71 to be opened or closed, so that the dilution needle 40 can quantitatively suck the sample mother liquor and the dilution liquid through the opening or closing of the plunger pump 72 and the electromagnetic valve 71.
In the present embodiment, the dilution needle 40 can more accurately suck the volumes of the desired sample mother liquor and dilution liquid by using the control motor to simultaneously control the opening and closing of the plunger pump 72 and the solenoid valve 71. When the dilution needle 40 is used to dispose the sample solutions of different concentrations, it is necessary to perform the suction and discharge plural times, and the sample solutions are mixed plural times by the plural times of suction and discharge, so that the prepared sample solutions are more uniform.
Further, referring to fig. 1, the multifunctional sample injector for analysis further includes a peristaltic pump, the peristaltic pump is connected to the sample injection needle 50 through a hose, and the peristaltic pump is used for making the sample injection needle 50 generate suction;
The number of the sample injection needles 50 is at least two, and the number of peristaltic pumps corresponds to the number of the sample injection needles 50.
In this embodiment, by setting multiple sampling needles 50, integration of single-needle sampling and multiple-needle sampling functions is achieved, so that a sampling mode is more flexible, and sampling efficiency of the sampling needles 50 is improved. The design of the double-arm multi-needle comprehensively utilizes the bracket of the sample injection instrument, increases the dimension of one sample injection arm, has more functions, meets various requirements of sample pretreatment of the analyzer, and improves the automation level.
Further, referring to fig. 1, in order to observe the liquid level of the sample liquid in the sample needle 50 conveniently, the sample needle 50 is further provided with a liquid level sensor 150, the liquid level sensor 150 transmits the liquid level information in the sample needle 50 to a control system, and the control system controls a peristaltic pump connected with the sample needle 50 according to the information to control the sample needle 50 to start or stop generating suction force, so that the sample needle 50 starts or stops sucking the sample, and the sample needle 50 can keep constant submerged depth sample injection.
Further, referring to fig. 1, the multifunctional sample injector for analysis further includes a mobile cleaning device 80 and a connecting piece 90; the movable cleaning device 80 is connected with the second sample injection arm 30 through a connecting piece 90, a cleaning channel 81 is arranged in the movable cleaning device 80, the sample injection needle 50 is communicated with the cleaning channel 81, the sample injection needle 50 is used for sucking cleaning liquid in the cleaning channel 81 into the sample injection needle 50 and then entering the analyzer, and the cleaning liquid flowing through the sample injection needle 50 can clean the sample injection needle 50.
In this embodiment, one end of the connecting member 90 is fixedly connected to the second sample injection arm 30 by welding, screws, etc., and the other end of the connecting member 90 is fixedly connected to the mobile cleaning device 80.
Further, referring to fig. 3 and 5, the cleaning device is provided with a through hole 82 communicating with the cleaning channel 81, and the sample injection needle 50 passes through the through hole 82 to communicate with the cleaning channel 81;
The mobile cleaning device 80 is provided with a liquid inlet pipe 100, the liquid inlet pipe 100 is communicated with the cleaning channel 81, and the liquid inlet pipe 100 is used for guiding cleaning liquid into the cleaning channel 81.
In this embodiment, after one sample injection, the sample injection needle 50 moves in the Z direction, so that the needle opening is aligned with the cleaning channel 81, the peristaltic pump sucks the cleaning solution into the liquid inlet needle to clean the inner wall of the sample injection needle, a certain gap exists between the through hole 82 and the sample injection needle 50, and the cleaning solution flows through the gap to clean the outer wall of the sample injection needle.
The number of mobile washing devices 80 matches the number of sample injection needles 50.
The conventional sample injector is used for cleaning the inner wall and the outer wall of the needle by moving the sample injector to a cleaning pool at a fixed position after sample injection, and the second sample injection arm 30 is provided with a moving cleaning device 80 which moves along with the movement of the second sample injection arm 30, so that the cleaning can be completed by only moving the sample injector in one direction, namely Z direction, after sample injection of the sample injector 50, and sucking cleaning liquid into the cleaning channel 81. Compared with the traditional cleaning mode, the cleaning mode provided by the application simplifies the cleaning process and improves the cleaning efficiency.
In one embodiment, the dilution needle 40 is cleaned by moving to the fixed cleaning tank 161, and the dilution needle 40 is cleaned by sucking in the cleaning liquid by the plunger pump 72.
It should be noted that, the moving mode of the sample injection needle 50 is consistent with the moving mode of the dilution needle 40, the second sample injection arm 30 drives the sample injection needle 50 to move along the X direction relative to the sample injection instrument body 10, the sample injection needle 50 moves along the Y direction relative to the second sample injection arm 30 through the transmission belt and the transmission wheel, and the sample injection needle 50 moves along the Z direction relative to the second sample injection arm 30 through the spline and the spline shaft.
Further, referring to fig. 4 and 5, the cleaning liquid flows into the sample injection needle 50 through the needle opening of the sample injection needle 50 for cleaning; or, the sample injection needle 50 is provided with a side opening 51, the needle opening is closed, and the cleaning liquid enters the sample injection needle 50 through the side opening 51 to clean the sample injection needle 50.
In this embodiment, the cleaning liquid flows into the sample injection needle 50 through the needle opening of the sample injection needle 50 for cleaning; alternatively, the side opening 51 is provided in the sample injection needle 50, and the opening is closed, so that the cleaning liquid is introduced into the sample injection needle 50 through the side opening 51 for cleaning. The sampling needle 50 is provided with the side opening 51, when the sampling needle 50 is cleaned by the cleaning device, the side opening 51 is aligned with the cleaning channel 81, so that the cleaning liquid can more conveniently flow into the inner wall of the sampling needle 50, and meanwhile, the liquid flowing out of the cleaning liquid from the gap between the sampling needle 50 and the through hole 82 is reduced.
Further, referring to fig. 5, in order to avoid the cleaning solution flowing out from the gap between the sample injection needle 50 and the through hole 82, the mobile cleaning device 80 further includes at least two sealing rings 110, wherein the sealing rings 110 are used for sealing the gap between the sample injection needle 50 and the through hole 82.
The center of the sealing ring 110 and the center of the through hole 82 are located on the same axis, the sample injection needle 50 passes through the sealing ring 110, and the sample injection needle 50 and the sealing ring 110 are matched, so that the cleaning liquid can only flow in the through hole 82 and the cleaning channel 81 of the cleaning device 80.
The utility model provides a multifunctional sample injector for analysis, which comprises a sample injector body 10, a first sample injection arm 20, a second sample injection arm 30, a dilution needle 40 and a sample injection needle 50, wherein the first sample injection arm 20 drives the dilution needle 40 to move relative to the sample injector body 10 along the X direction, the dilution needle 40 moves relative to the first sample injection arm 20 along the Y direction through a transmission belt and a transmission wheel, the dilution needle 40 moves relative to the first sample injection arm 20 along the Z direction through a spline and a spline shaft, and the dilution needle 40 sucks sample mother liquor and dilution liquid to the same position and mixes the sample mother liquor and the dilution liquid into a mixed sample, so that the functions of re-injection after dilution, gradient concentration standard configuration, sample configuration and the like are realized; meanwhile, the second sample injection arm 30 may carry a plurality of sample injection needles 50, and the sample injection needles 50 implement single-needle sample injection, multi-needle sample injection, and other functions in the same movement manner as the dilution needle 40. The multifunctional sample injector for analysis also comprises a mobile cleaning device 80, a connecting piece 90 and a liquid inlet pipe 100; the movable cleaning device 80 is connected with the second sampling arm 30 and the sampling needle 50 through the connecting piece 90, a cleaning channel 81 and a through hole 82 are formed in the movable cleaning device 80, the liquid inlet pipe 100 is communicated with the cleaning channel 81, cleaning liquid is led into the cleaning channel 81, the sampling needle 50 is provided with a side opening 51, the bottom is closed and can move along the Z direction along the through hole 82, when the sampling needle 50 moves to the side opening 51 along the Z direction to align with the cleaning channel 80, the cleaning liquid flows into the sampling needle 50 through the side opening 51 to clean the sampling needle 50, and through the cleaning mode, the moving steps of the sampling needle 50 are reduced, and the sampling efficiency of the sampling needle 50 is improved.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. A multifunctional sample injector for analysis, comprising:
A sample injection instrument body;
The first sample injection arm is arranged on the sample injection instrument body, a dilution needle is carried on the first sample injection arm, the first sample injection arm can drive the dilution needle to move relative to the sample injection instrument body along the X direction, the dilution needle can move relative to the first sample injection arm along the Y direction and the Z direction respectively, and the dilution needle is used for sucking the sample mother solution and the dilution solution to a mixing position to form a mixed sample;
The second sample injection arm is arranged on the sample injection instrument body, a sample injection needle is carried on the second sample injection arm, the second sample injection arm can drive the sample injection needle to move along the X direction relative to the sample injection instrument body, the sample injection needle can respectively move along the Y direction and the Z direction relative to the second sample injection arm, and the sample injection needle is used for sucking a mixed sample to an analyzer.
2. The multifunctional sample injector for analysis according to claim 1, further comprising a sliding rail, wherein the sliding rail is arranged on the sample injector body along the X direction, and the first sample injection arm is slidably connected with the sample injector body through the sliding rail, so that the first sample injection arm drives the dilution needle to move relative to the sample injector body along the X direction.
3. The multifunctional sample injector for analysis according to claim 1, further comprising a transmission belt and a transmission wheel, wherein the transmission belt is connected with the dilution needle, and the transmission wheel is used for realizing rotation of the transmission belt;
The transmission belt is arranged along the Y direction, and can rotate along the Y direction to drive the dilution needle to move along the Y direction relative to the first sample injection arm.
4. The multifunctional sample injector for analysis according to claim 1, further comprising a spline and a spline shaft, wherein a space for placing the spline shaft is arranged in the first sample injection arm, the spline shaft is arranged along the Y direction, the spline is arranged on the dilution needle along the Z direction, the spline can move along the Z direction through rotation of the spline shaft, and the dilution needle can move relative to the first sample injection arm along the Z direction through the spline.
5. The multifunctional sample injector for analysis according to claim 1, further comprising a plunger pump assembly, wherein the plunger pump assembly is arranged on the sample injector body;
The plunger pump assembly comprises a plunger pump, an electromagnetic valve and a control motor, wherein the plunger pump is connected with the diluting needle through a hose, the electromagnetic valve is arranged on the hose, and the control motor controls the plunger pump and the electromagnetic valve to be opened or closed, so that the diluting needle can quantitatively absorb the sample mother liquor and the diluting liquid through the opening or closing of the plunger pump and the electromagnetic valve.
6. The multifunctional sample injector for analysis according to claim 1, further comprising a peristaltic pump connected to the sample injection needle by a hose, the peristaltic pump being configured to cause suction to be generated by the sample injection needle;
The number of the peristaltic pumps corresponds to the number of the sample injection needles.
7. The multifunctional sample injector for analysis according to claim 1, further comprising a mobile cleaning device and a connecting piece; the movable cleaning device is connected with the second sample injection arm through the connecting piece, a cleaning channel is arranged in the movable cleaning device, the sample injection needle is communicated with the cleaning channel, and the sample injection needle is used for sucking cleaning liquid in the cleaning channel into the sample injection needle for cleaning.
8. The multifunctional sample injector for analysis according to claim 7, wherein the cleaning device is provided with a through hole communicated with the cleaning channel, and the sample injection needle is communicated with the cleaning channel through the through hole;
The movable cleaning device is provided with a liquid inlet pipe, the liquid inlet pipe is communicated with the cleaning channel, and the liquid inlet pipe is used for guiding the cleaning liquid into the cleaning channel.
9. The multifunctional sample injector for analysis according to claim 8, wherein the cleaning liquid flows into the sample injection needle through a needle opening of the sample injection needle for cleaning; or, the sample injection needle is provided with a side opening, the needle opening is closed, and the cleaning liquid enters the sample injection needle through the side opening to clean the sample injection needle.
10. The multifunctional sample injector for analysis according to claim 8, wherein the movable cleaning device further comprises at least two sealing rings, and the sealing rings are used for sealing the gap between the sample injection needle and the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322423976.7U CN220854902U (en) | 2023-09-06 | 2023-09-06 | Multifunctional sample injection instrument for analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322423976.7U CN220854902U (en) | 2023-09-06 | 2023-09-06 | Multifunctional sample injection instrument for analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220854902U true CN220854902U (en) | 2024-04-26 |
Family
ID=90783330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322423976.7U Active CN220854902U (en) | 2023-09-06 | 2023-09-06 | Multifunctional sample injection instrument for analysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220854902U (en) |
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2023
- 2023-09-06 CN CN202322423976.7U patent/CN220854902U/en active Active
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