CN114660315A - Sample transfer device, batch sample introduction system, analysis equipment and batch sample introduction method - Google Patents
Sample transfer device, batch sample introduction system, analysis equipment and batch sample introduction method Download PDFInfo
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- CN114660315A CN114660315A CN202210566423.4A CN202210566423A CN114660315A CN 114660315 A CN114660315 A CN 114660315A CN 202210566423 A CN202210566423 A CN 202210566423A CN 114660315 A CN114660315 A CN 114660315A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/04—Details of the conveyor system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L1/00—Enclosures; Chambers
- B01L1/02—Air-pressure chambers; Air-locks therefor
- B01L1/025—Environmental chambers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
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Abstract
The invention discloses a sample transfer device, a batch sample introduction system, an analysis device and a batch sample introduction method. The sample transfer device comprises a transfer cabin, an air pump, an inert gas source and a sample parking frame, wherein a sealed space is formed inside the transfer cabin, the transfer cabin is also provided with an air inlet and an air outlet which are communicated with the sealed space, the air inlet and the air outlet are both connected with a valve body, and the air pump is connected with the air outlet; the inert gas source is connected with the gas inlet, the sample parking frame is movably arranged in the sealed space, and the sample parking frame is used for placing a plurality of samples. The technical scheme of the invention aims to avoid the air influence on the air-sensitive sample when the air-sensitive sample is transferred to the sampling chamber.
Description
Technical Field
The invention relates to the technical field of analysis and detection, in particular to a sample transfer device, a batch sample introduction system, an analysis device and a batch sample introduction method.
Background
In the present traditional ultrahigh vacuum detection equipment, a single sample stage is adopted to transfer a sample, and the sample can be exposed in the air in the process of transferring from a preparation chamber to a sample introduction chamber, so that the accuracy of a test result can be influenced if the sample to be detected is sensitive to the air.
Disclosure of Invention
The main object of the present invention is to provide a sample transfer device, which aims to reduce the influence of air on a sample during the process of transferring an air-sensitive sample to a sample chamber.
To achieve the above object, the present invention provides a sample transfer device, comprising:
the transfer cabin is internally provided with a sealed space, and is also provided with an air inlet and an air outlet which are communicated with the sealed space, and the air inlet and the air outlet are both connected with a valve body;
the air pump is connected with the exhaust hole;
the inert gas source is connected with the gas inlet; and
the sample parking frame is movably arranged in the sealed space and used for placing a plurality of samples.
In an embodiment of the present invention, the transfer cabin includes a seat body and a cabin body, the cabin body is movably connected to the seat body and encloses with the seat body to form the sealed space;
the air inlet is arranged on the seat body or the cabin body;
the exhaust holes are formed in the seat body or the cabin body;
the sample parking frame is movably connected with the base body.
In an embodiment of the present invention, the cabin is a cylindrical structure with an opening at one end, the seat body includes a connecting panel and a supporting bottom plate connected with each other, and the opening end of the cabin is disposed toward the connecting panel;
the outer surface of the cabin body and still be formed with sliding construction between the supporting baseplate, sliding construction includes slider and spout, the outer surface of the cabin body be equipped with the slider with either of the spout, the supporting baseplate be equipped with the slider with the other of the two of spout, the slider with the spout cooperation, so that the cabin body orientation is close to or keeps away from the direction of connection panel slides.
In an embodiment of the present invention, the sample transfer device further includes a first pushing rod, one end of the first pushing rod is connected to an end surface of the cabin body close to the connection panel, and the other end of the first pushing rod penetrates through the connection panel and extends toward a direction away from the connection panel.
In one embodiment of the present invention, the sample stand comprises:
the device comprises a frame body, wherein a first connecting structure is arranged at the top of the frame body and used for being connected with a material taking mechanism arranged in a sample injection chamber, and a plurality of spaced inserting rods are further arranged on the surface of the frame body; and
the sample placing plate is fixed with at least one inserting rod, and the sample placing plate is used for placing a sample.
In one embodiment of the present invention, a plurality of the sample placing plates are arranged in a vertical direction.
In an embodiment of the invention, a second connecting structure is further disposed on a surface of the rack body facing the connecting panel, the sample parking rack further includes a second pushing rod, and one end of the second pushing rod is detachably connected to the sample parking rack through the second connecting structure.
The invention also provides a batch sample introduction system, which comprises a sample introduction chamber and the sample transfer device;
the sampling chamber is internally provided with a containing space, the sampling chamber is also provided with a feed inlet communicated with the containing space, and the sample transfer device is placed into the containing space through the feed inlet.
In an embodiment of the present invention, the sample chamber is provided with a material taking mechanism, and the material taking mechanism includes:
a support plate;
the adjusting rod is arranged in the accommodating space, one end of the adjusting rod is connected with the supporting plate, one end of the adjusting rod, which is far away from the supporting plate, penetrates through the top of the sample chamber and extends out of the accommodating space, and the adjusting rod can be movably arranged relative to the sample chamber; and
at least one material taking part, wherein one end of the material taking part is connected to the supporting plate, and one end of the material taking part, which is far away from the supporting plate, is separably connected with the sample parking frame.
The invention also provides analysis equipment which comprises the analysis detection chamber and the batch sample introduction system.
The invention also provides a batch sample introduction method, which comprises the following steps:
s1: preparing a sample in an air-isolated environment, placing the prepared sample on a sample parking frame, and placing the sample parking frame with the sample in a sealed space of a transfer cabin;
s2: vacuumizing the sealed space by using an air pump to form a pre-vacuum environment in the sealed space;
s3: placing the sample transfer device loaded with the sample into the accommodating space of the sample chamber, and sealing the accommodating space;
s4: vacuumizing the accommodating space to form a vacuum environment in the accommodating space;
s5: injecting inert gas into the sealed space by using an inert gas source;
s6: opening the transfer cabin to enable the sealed space to be communicated with the accommodating space;
s7: the sample holder is retained in the accommodating space.
The sample transfer device provided by the technical scheme of the invention comprises a transfer cabin, an air pump, an inert gas source and a sample parking frame. Wherein, the transfer cabin is internally provided with a sealed space, and is also provided with an air inlet and an air outlet which are communicated with the sealed space. The sample parking frame is movably arranged in the sealed space, and the sample parking frame can be used for simultaneously placing a plurality of samples. When the sample placing rack is used, the prepared sample is placed on the sample placing rack, and the sample placing rack is sealed in the sealed space. And then the sealed space is vacuumized by an air pump connected with the exhaust hole, so that the sample on the sample stand placed in the sealed space is in a vacuum environment isolated from air. After the sample is transferred to the preset vacuum environment through the sample transfer device, inert gas is injected into the sealed space through the air inlet, so that the air pressure in the sealed space is improved, the pressure difference between the sealed space and the preset vacuum environment is increased, and the sealed space can be conveniently opened to take out the sample. The whole sample placing, sample transferring and sample taking processes can be carried out in an air-isolated environment, so that the sample is effectively protected, the damage of a vacuum-breaking environment in the transferring process to the air-sensitive sample is avoided, the quality of the sample is ensured, and the reliability of sample detection is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a sample transfer device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a transfer chamber body in the sample transfer apparatus of the present invention;
FIG. 3 is a schematic structural view showing an opened state of a transfer chamber in the sample transfer apparatus according to the present invention;
FIG. 4 is a schematic structural view showing a closed state of a transfer chamber in the sample transfer apparatus according to the present invention;
FIG. 5 is a schematic view of a sample holder of the sample transfer device of the present invention;
FIG. 6 is a schematic structural diagram of a sample holder body of the sample transfer apparatus of the present invention;
FIG. 7 is a schematic view of a sample placement plate of a sample holder of the sample transfer apparatus according to the present invention;
FIG. 8 is a schematic structural diagram of an embodiment of a batch sample injection system according to the present invention;
FIG. 9 is a schematic view of the connection between the sample holder and the material taking mechanism according to the present invention.
The reference numbers illustrate:
| reference numerals | Name(s) | Reference numerals | Name(s) |
| 100 | |
21b | |
| 10 | |
21c | Second connecting |
| 11 | |
211 | Inserted |
| 11a | |
22 | |
| 11b | Opening of the |
221 | |
| 11c | |
200 | |
| 12 | |
50 | |
| 121 | Supporting bottom plate | 51 | |
| 1211 | |
60 | |
| 122 | |
61 | Adjusting |
| 20 | |
62 | |
| 21 | |
63 | |
| 21a | First connecting structure |
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly specified or limited, the terms "attached," "secured," and the like are to be construed broadly, e.g., "secured" may be fixedly attached, detachably attached, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides a sample transfer device 100.
Referring to fig. 1 and 8, fig. 1 is a schematic structural diagram of an embodiment of a sample transfer device 100 according to the present invention, and fig. 8 is a schematic structural diagram of a sample transfer device 100 according to the present invention connected to a sample chamber 200, wherein the sample transfer device 100 includes:
the transfer cabin 10 is provided with a sealed space (not marked) inside, the transfer cabin 10 is further provided with an air inlet (not shown) and an air outlet (not shown) which are communicated with the sealed space, and the air inlet and the air outlet are both connected with a valve body; an air pump (not shown) connected to the exhaust hole; an inert gas source (not shown) connected to the gas inlet; and the sample parking stand 20, the sample parking stand 20 is movably arranged in the sealed space, and the sample parking stand 20 is used for placing a plurality of samples (not shown).
The sample transfer device 100 provided by the technical scheme of the invention comprises a transfer cabin 10, an air pump, an inert gas source and a sample parking frame 20. Wherein, a sealed space is formed inside the transfer cabin 10, and the transfer cabin 10 is further provided with an air inlet and an air outlet which are communicated with the sealed space. The sample parking frame 20 is movably arranged in the sealed space, and a plurality of samples can be placed on the sample parking frame at the same time. In use, the prepared sample is placed on the sample holder 20, and the sample holder 20 is sealed in the sealed space. The sealed space is then evacuated by an air pump connected to the air exhaust hole, so that the sample on the sample stand 20 placed in the sealed space is in a vacuum environment isolated from air. After the sample is transferred to the preset vacuum environment through the sample transfer device 100, inert gas is injected into the sealed space through the gas inlet, so that the gas pressure in the sealed space is improved, the pressure difference between the sealed space and the preset vacuum environment is increased, and the sealed space is convenient to open to take out the sample. The whole sample placing, sample transferring and sample taking processes can be carried out in an air-isolated environment, so that the sample is effectively protected, the damage of a vacuum-breaking environment in the transferring process to the air-sensitive sample is avoided, the quality of the sample is ensured, and the reliability of sample detection is improved.
In the technical scheme of the invention, the valve body can respectively seal the exhaust hole and the air inlet hole under the condition that the air pump and the inert gas source do not work so as to ensure the sealing performance of the sealed space in the transfer chamber 10. The air pump and the inert gas source are respectively connected with the valve bodies arranged on the exhaust hole and the air inlet hole in a sealing mode through pipelines, when the air pump works, the air inlet pipe of the air pump is connected with the valve bodies arranged on the exhaust hole, and the air outlet pipe of the inert gas source is connected with the valve bodies arranged on the air inlet hole to achieve sealing connection.
In the technical scheme of the invention, a cabin door (not shown) is arranged on the transfer cabin 10, and the opening and the closing of the sealed space in the transfer cabin 10 are realized by opening or closing the cabin door; when the hatch door is opened, the sample parking rack 20 can be placed into the transfer cabin 10, or the sample parking rack 20 is taken out from the transfer cabin 10, when the hatch door is closed, air in the sealed space is extracted through the exhaust hole, so that the sealed space can form an independent vacuum environment, and an environment for isolating the air can be formed in the sealed space by injecting inert gas into the air inlet hole; the air-sensitive sample is taken out after preparation and transferred to the sampling chamber 200, so that the vacuum or inert gas environment around the sample is maintained, and the influence of air on the air-sensitive sample is reduced.
The transfer chamber 10 is used to transfer the prepared sample to the sample entry chamber 200 of the analysis apparatus. It will be appreciated that the entire sample transfer device 100 may be sealed inside the sample entry chamber 200 after transfer. The analysis device includes a sample introduction chamber 200 and an analysis detection chamber connected to the sample introduction chamber 200. The sample transfer apparatus 100 is to be hermetically connected to an apparatus for preparing a sample before transferring the sample, for example, when preparing a sample sensitive to air, the sample should be prepared in an inert atmosphere apparatus such as a glove box, in this case, the sample transfer apparatus 100 should also place the prepared sample on the sample rest 20 inside the transfer chamber 10 in the inert atmosphere apparatus such as the glove box, and then load the sample rest 20 into the sealed space of the transfer chamber 10, and at this time, the sealed space of the transfer chamber 10 is filled with an inert gas, so that air does not affect the sample during the transferring process.
Further, the sample transfer device 100 needs to be hermetically connected to the sample chamber 200 of the analysis apparatus, and the sample chamber 200 needs to be vacuumized, so as to avoid that the pressure difference between the sample chamber 200 and the interior of the transfer chamber 10 causes the transfer chamber 10 to open in advance when the sample chamber 200 is vacuumized, and the air remaining in the sample chamber 200 affects the sample, so that an air pump needs to be connected to the exhaust hole before the transfer chamber 10 is connected to the sample chamber 200, and the interior of the transfer chamber 10 needs to be pre-vacuumized.
Further, after the pre-vacuuming of the transfer chamber 10, the transfer chamber 10 is hermetically connected to the loading chamber 200.
Further, the sampling chamber 200 is vacuumized, and after the vacuum-pumping of the sampling chamber 200 is completed, since the interiors of the sampling chamber 200 and the transfer chamber 10 are both in a vacuum state, a certain amount of inert gas is filled into the transfer chamber 10 through the gas inlet hole of the transfer chamber 10 by using an inert gas source, so that the pressure difference between the interior of the transfer chamber 10 and the interior of the sampling chamber 200 is increased, and the opening of the transfer chamber 10 and the taking out of the sample parking rack 20 in the transfer chamber 10 are facilitated.
Further, the sample stand 20 can hold a plurality of samples, so that the total processing time before a large batch of tests is greatly shortened.
Because the whole sample circulation process is carried out under the inert gas atmosphere and the vacuum protection environment, the inert gas atmosphere and the vacuum protection can effectively ensure that all samples are transferred without damaging the samples, and air sensitive materials do not need to be specially treated, so that the sample preparation convenience and the test accuracy before the test are greatly improved.
In an embodiment of the present invention, referring to fig. 2, fig. 3 and fig. 4, the transfer chamber 10 includes a base 12 and a chamber 11, wherein the chamber 11 is movably connected to the base 12 and encloses with the base 12 to form the sealed space; the air inlet is arranged on the seat body 12 or the cabin body 11; the exhaust holes are formed in the seat body 12 or the cabin body 11; the sample holder 20 is movably connected to the base 12.
In the technical solution of an embodiment of the present invention, the transfer cabin 10 includes a seat body 12 and a cabin body 11, and there are various connection manners of the cabin body 11 and the seat body 12, for example, the cabin body 11 may be slidably connected to the seat body 12, or the cabin body 11 and the seat body 12 may also be connected in a hinged manner. When the cabin body 11 is tightly attached to the seat body 12, the internal space of the transfer cabin 10 can form a sealed space; when the body 11 and the base body 12 are opened, the inner space of the transfer chamber 10 is communicated with the outer space, thereby facilitating the loading and unloading of the sample stand 20.
Further, the base 12 is used to hermetically connect the entire transfer chamber 10 to an instrument for preparing a sample or an instrument for analyzing and detecting a sample, and provides a support for the movement of the chamber 11 relative to the base 12.
Further, the air inlet can be arranged on the seat body 12 or the cabin body 11; the exhaust holes can also be disposed on the seat body 12 or the cabin 11, and preferably, the air intake holes and the exhaust holes are both disposed on the cabin 11, so that the sealed space inside the transfer cabin 10 is not easily affected by the relative movement of the cabin 11 and the seat body 12 during the air intake or exhaust process.
Further, the sample stand 20 is movably connected to the base 12, so that the sample stand 20 is transferred to the sample chamber 200 when the transfer chamber 10 is opened.
In an embodiment of the present invention, referring to fig. 2, 3 and 4, the cabin 11 is a cylindrical structure with an open end, the seat 12 includes a connecting panel 122 and a supporting bottom plate 121 connected to each other, and the open end 11b of the cabin 11 is disposed toward the connecting panel 122;
a sliding structure is further formed between the outer surface of the cabin 11 and the support base plate 121, the sliding structure includes a sliding block 11c and a sliding slot 1211, one of the sliding block 11c and the sliding slot 1211 is disposed on the outer surface of the cabin 11, the other of the sliding block 11c and the sliding slot 1211 is disposed on the support base plate 121, and the sliding block 11c and the sliding slot 1211 cooperate to enable the cabin 11 to slide toward or away from the connection panel 122.
In the technical solution of an embodiment of the present invention, the chamber body 11 is slidably connected to the base body 12, at this time, the base body 12 includes a connecting panel 122 and a supporting bottom plate 121, the connecting panel 122 can seal the opening of the chamber body 11, and meanwhile, the connecting panel 122 can fix the entire transfer chamber 10 on the sample chamber 200. For example, the connection panel 122 may be fixed to the sampling chamber 200 by screws. In one embodiment, a sealing ring or the like is further disposed at the connection position of the connection panel 122 to improve the sealing property between the connection panel 122 and the chamber 11, so as to prevent the sample transfer device 100 from leaking air. The supporting bottom plate 121 provides support for the cabin 11 to slide relative to the seat 12, and a sliding structure is further formed between the outer surface of the cabin 11 and the supporting bottom plate 121, the sliding structure includes a sliding slot 1211 and a sliding block 11c, the sliding block 11c is inserted into the sliding slot 1211 to provide a guiding function for the sliding of the sliding block 11c, and the smoothness of the sliding of the cabin 11 relative to the seat 12 is improved. The chutes 1211 and the sliding blocks 11c may be reasonably arranged according to actual requirements, for example, the chutes 1211 are arranged on the supporting bottom plate 121, and the corresponding sliding blocks 11c are arranged on the cabin 11; if the sliding blocks 11c are disposed on the supporting base plate 121, the corresponding sliding slots 1211 are disposed on the cabin 11.
Further, the cabin 11 is a cylindrical structure with an opening 11b at one end, and the opening 11b of the cabin 11 is disposed toward the connecting panel 122; the joint between the opening 11b of the chamber 11 and the connection panel 122 should be provided with a sealing ring to prevent the sample transfer device 100 from leaking air.
It can be understood that when the cabin 11 of the cylindrical structure is closely attached to the connection panel 122, a sealed space is formed; when the chamber 11 slides away from the connecting panel 122, the sealed space is opened, and the sample holder 20 loaded in the sealed structure can be exposed.
In an embodiment of the present invention, referring to fig. 2, fig. 3 and fig. 4, the sample transfer device 100 further includes a first pushing rod 11a, one end of the first pushing rod 11a is connected to an end surface of the cabin 11 close to the connection panel 122, and the other end of the first pushing rod 11a penetrates through the connection panel 122 and extends toward a direction away from the connection panel 122. The first push lever 11a is perpendicular to the connection panel 122. The first pushing rod 11a is used to control the sliding of the chamber 11 relative to the connecting panel 122, so as to control the sealing and opening of the sealed space, that is, the sealing and opening of the space around the sample holder 20.
Further, the other end of the first push rod 11a penetrates through the connection panel 122, so that when the transfer chamber 10 is completely placed in the sample chamber 200, the operation of moving the chamber body 11 can be performed from the outside of the sample chamber 200.
Further, since the sealed space of the transfer chamber 10 is converted between vacuum and non-vacuum states, the first push rod 11a at the end of the connecting panel 122 away from the chamber body 11 can be connected to mechanical equipment to ensure that sufficient tension is applied to maintain the vacuum state in the transfer chamber 10.
In an embodiment of the present invention, referring to fig. 5, 6 and 7, the sample stand 20 includes:
the sample taking device comprises a frame body 21, wherein a first connecting structure 21a is arranged at the top of the frame body 21, the first connecting structure 21a is used for being connected with a material taking mechanism 60 arranged in a sample chamber 200, and a plurality of spaced inserting rods 211 are further arranged on the surface of the frame body 21; a plurality of sample positioning plates 22, one of said sample positioning plates 22 being secured to at least one of said plungers 211, one of said sample positioning plates 22 being adapted to position a sample.
Further, the frame body 21 is plate-shaped, a plurality of groups of insertion rods 211 horizontally arranged at intervals are arranged on one side of the frame body 21, the first connecting structure 21a is arranged at the center of the short side wall of the frame body 21, the first connecting structure 21a can be a screw hole, the first connecting structure 21a can also be a hook or a buckle, and the like, so long as the first connecting structure 21a can be matched with the material taking mechanism. A plurality of place a board side be equipped with inserted bar complex jack 221, jack 221 through inserted bar 211 on the support body 21 with support body 21 is connected fixedly.
In an embodiment of the present invention, referring to fig. 5, a plurality of the sample-placing plates 22 are arranged in a vertical direction. In the technical solution of an embodiment of the present invention, the plurality of sample placing plates 22 are arranged in a vertical direction, so that the sample placing plate 22 of each layer can place a sample, and the sample of another layer is not scraped during placing and taking out of a single sample.
In an embodiment of the present invention, referring to fig. 5, the sample parking stand 20 further includes a second pushing rod 21b, a second connecting structure 21c is further disposed on a surface of the stand body 21 facing the connecting panel 122, the second connecting structure 21c may be a screw hole, and one end of the second pushing rod 21b is disposed on a threaded structure matched with the screw hole and detachably connected to the sample parking stand 20 through the second connecting structure 21 c. Of course, the second connecting structure 21c can also be other separable connecting structures such as a snap,
further, the second pushing rod 21b is parallel to the first pushing rod 11a, the second pushing rod 21b is used for controlling the horizontal movement of the sample parking rack 20 in the sealed space inside the transfer chamber 10, when the transfer chamber 10 is connected to an instrument for preparing a sample or an instrument for analyzing and detecting a sample, the first pushing rod 11a slides the chamber body 11 away from the connection panel 122, the sealed space inside the transfer chamber 10 is opened, and the second pushing rod 21b can fix the sample parking rack 20 in the transfer chamber 10 and can control the horizontal movement of the sample parking rack 20 in the sealed space inside the transfer chamber 10.
Further, the connection of the second push rod 21b with the rack body 21 is detachably connected because the sample parking rack 20 needs to be placed or taken out in the vertical direction in the transfer chamber 10; when the sample stand 20 needs to be placed or taken out, the taking member 63 is connected to the first connecting structure 21a, and the connection between the second pushing rod 21b and the second connecting structure 21c needs to be disconnected.
Referring to fig. 8, the batch sample introduction system includes a sample introduction chamber 200 and a sample transfer device 100, and the specific structure of the sample transfer device 100 refers to the above embodiments, and since the batch sample introduction system adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
An accommodating space is formed in the sampling chamber 200, the sampling chamber 200 is further provided with a feed port 50, and the sample transfer device 100 is placed in the accommodating space through the feed port 50.
Further, the inlet 50 is provided with a flange 51 for sealing connection with the connection panel 122 of the sample transfer device 100. Similarly, a sealing ring is disposed at the connection position of the flange 51 and the connection panel 122 to prevent air leakage of the batch sample feeding system.
Further, the flange 51 is attached to the side of the connection panel 122 adjacent to the chamber body 11 such that the entire chamber body 11 is disposed within the sample chamber 200.
In an embodiment of the present invention, referring to fig. 9, the sample chamber 200 is provided with a material taking mechanism 60, and the material taking mechanism 60 includes: a support plate 62; adjust pole 61, adjust pole 61 and locate in the accommodation space, the one end of adjusting pole 61 with backup pad 62 is connected, adjust pole 61 and deviate from the one end of backup pad 62 still runs through the room 200 top of advancing stretches out outside the accommodation space, it can be relative to adjust pole 61 the room 200 activity of advancing sets up, material taking part 63 one end is connected the backup pad 62 edge, the material taking part 63 other end with the first connection structure 21a detachable of support body 21 top on the sample parking frame 20 is connected. It can be understood that a through hole is formed at the top of the sample chamber 200, the through hole is in a long strip shape, and the adjusting rod 61 can move in the through hole in a translation, lifting and the like, so as to adjust the position of the whole feeding mechanism 60, and to realize the taking out of the sample parking rack 20 from the sample transfer device 100.
Further, the adjusting rod 61 penetrates through a through hole in the top of the sample chamber 200, and a sealing structure is further arranged between the adjusting rod 61 and the through hole, so that the adjusting rod 61 can move up and down and can rotate around the adjusting rod 61 by taking the adjusting rod as a shaft on the premise of ensuring the internal vacuum state.
Furthermore, the material taking part 63 is used for connecting the sample parking frame 20, the material taking part 63 is connected with the adjusting rod 61 through the supporting plate 62, when the sample parking frame 20 is exposed in a vacuum environment inside the sample inlet chamber 200, the material taking part 63 is controlled by the adjusting rod 61 to be connected with the sample parking frame 20, after the material taking part 63 is connected with the sample parking frame 20, the second pushing rod 21b is separated from the sample parking frame 20, and the adjusting rod 61 can drive the sample parking frame 20 to move up and down through the material taking part 63 or rotate by taking the adjusting rod 61 as a shaft.
Furthermore, the supporting plate 62 is circular, and the material taking member 63 is connected to the edge of the supporting plate 62, so that the connectable range of the material taking member 63 is expanded.
The present invention further provides an analysis apparatus, which includes an analysis detection chamber and a batch sample introduction system, and the specific structure of the batch sample introduction system refers to the above embodiments, and since the analysis apparatus employs all technical solutions of all the above embodiments, the analysis apparatus at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.
The invention also provides a batch sample introduction method, which comprises the following steps:
s1: the sample is prepared in an air-isolated environment, and after the prepared sample is placed in the sample rest 20, the sample rest 20 with the sample placed therein is placed in the sealed space of the transfer chamber 10.
Firstly, preparing a sample in an air-isolated environment; before the sample transfer device 100 is connected to the sample preparation device, the sample transfer device 100 is first evacuated to avoid air pockets in the sample transfer device 100; then, the sample transfer device 100 is hermetically connected with the sample preparation device, and then inert gas is filled into the transfer chamber 10, so that the transfer chamber 10 can be conveniently opened; after the transfer chamber 10 is opened, the prepared sample is placed in the sample parking rack 20, and then the sample parking rack 20 with the sample placed therein is placed in the sealed space of the transfer chamber 10; finally, the transfer chamber 10 is sealed and the sample transfer device 100 is removed.
S2: the sealed space of the transfer chamber 10 is evacuated by an air pump to form a pre-vacuum environment in the sealed space.
It can be understood that, at this time, a little inert gas exists in the transfer chamber 10 of the sample transfer device 100, the transfer chamber 10 needs to be hermetically connected with the sample chamber 200 of the analysis apparatus, and the sample chamber 200 needs to be vacuumized, so as to avoid that during the vacuuming operation of the sample chamber 200, the pressure difference between the sample chamber 200 and the interior of the transfer chamber 10 causes the transfer chamber 10 to open in advance, which results in the influence of the air remained in the sample chamber 200 on the sample, so that an instrument such as an air pump needs to be used to pre-vacuumize the interior of the transfer chamber 10 through the air outlet hole on the transfer chamber 10 before the transfer chamber 10 is connected with the sample chamber 200.
S3: the sample transfer device 100 loaded with the sample is placed into the loading chamber 200 and the loading chamber 200 is sealed.
It will be appreciated that the sample introduction chamber 200 is provided with a feed inlet 50, and the sample transfer device 100 is placed into the receiving space via the feed inlet 50.
Further, the inlet 50 is provided with a flange 51 for sealing connection with the connection panel 122 of the sample transfer device 100. Similarly, the joint of the flange 51 and the connection panel 122 is provided with a sealing ring and the like to avoid air leakage of the batch sample feeding system.
Further, the flange 51 is connected to the side of the connection panel 122 adjacent to the chamber body 11, so that the entire chamber body 11 is loaded into the sample chamber 200.
S4: vacuumizing the sample chamber 200 to form a vacuum environment in the sample chamber 200;
s5: an inert gas source is used to inject an inert gas into the enclosed space of the transfer chamber 10.
After the vacuum pumping process of the sample chamber 200 is completed, since the interior of the sample chamber 200 and the interior of the transfer chamber 10 are both in a vacuum state, a certain amount of inert gas is filled into the interior of the transfer chamber 10 through the gas inlet hole of the transfer chamber 10 by using the inert gas source, so that the pressure difference between the interior of the transfer chamber 10 and the interior of the sample chamber 200 is increased, and the opening of the transfer chamber 10 and the taking out of the sample parking rack 20 inside the transfer chamber 10 are facilitated.
S6: the transfer chamber 10 is opened to place the sealed space in communication with the sample introduction chamber 200.
At this time, the sealed space of the transfer chamber 10 is communicated with the sampling chamber 200, a small amount of inert gas in the transfer chamber 10 is released, and if the analysis and detection environment needs a vacuum environment, the sampling chamber 200 needs to be evacuated again.
S7: the sample holder 20 is retained in the sample introduction chamber 200.
The sealed space of the transfer chamber 10 is communicated with the sample chamber 200, the sample parking rack 20 inside the transfer chamber 10 is exposed in the sample chamber 200, the material taking mechanism 60 of the sample chamber 200 can be connected with the first connecting structure 21a on the sample parking rack 20, and then the second push rod 21b is separated from the rack body 21 of the sample parking rack 20, so that the sample parking rack 20 is retained in the sample chamber 200.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. A sample transfer device, comprising:
the transfer cabin is internally provided with a sealed space, and is also provided with an air inlet and an air outlet which are communicated with the sealed space, and the air inlet and the air outlet are both connected with a valve body;
the air pump is connected with the exhaust hole;
the inert gas source is connected with the gas inlet; and
the sample parking frame is movably arranged in the sealed space and used for placing a plurality of samples.
2. The sample transfer apparatus according to claim 1, wherein the transfer chamber comprises a base and a chamber, the chamber is movably connected to the base and encloses the base to form the sealed space;
the air inlet is arranged on the seat body or the cabin body;
the exhaust holes are formed in the seat body or the cabin body;
the sample parking frame is movably connected with the base body.
3. The sample transfer apparatus of claim 2, wherein the chamber is a cylindrical structure with an open end, the housing comprises a connecting panel and a supporting bottom plate connected together, and the open end of the chamber is disposed toward the connecting panel;
the outer surface of the cabin body and still be formed with sliding construction between the supporting baseplate, sliding construction includes slider and spout, the outer surface of the cabin body be equipped with the slider with either of the spout, the supporting baseplate be equipped with the slider with the other of the two of spout, the slider with the spout cooperation, so that the cabin body orientation is close to or keeps away from the direction of connection panel slides.
4. The sample transfer device according to claim 3, further comprising a first pushing rod, wherein one end of the first pushing rod is connected to an end surface of the chamber body close to the connection panel, and the other end of the first pushing rod penetrates through the connection panel and extends in a direction away from the connection panel.
5. The sample transfer apparatus of claim 1, wherein the sample holder comprises:
the device comprises a frame body, wherein a first connecting structure is arranged at the top of the frame body and used for being connected with a material taking mechanism arranged in a sample injection chamber, and a plurality of spaced inserting rods are further arranged on the surface of the frame body; and
the sample placing plate is fixed with at least one inserting rod, and the sample placing plate is used for placing a sample.
6. The sample transfer device according to claim 5, wherein a plurality of said sample placement plates are arranged in a vertical direction.
7. The sample transfer device according to claim 5, wherein the surface of the rack body facing the connection panel is further provided with a second connection structure, and the sample parking rack further comprises a second pushing rod, and one end of the second pushing rod is detachably connected with the sample parking rack through the second connection structure.
8. A bulk sampling system, comprising a sample chamber and a sample transfer device according to any one of claims 1 to 7;
the sampling chamber is formed with accommodation space, the sampling chamber still is equipped with the intercommunication accommodation space's feed inlet, sample transfer device via the feed inlet is put into in the accommodation space.
9. The bulk sampling system of claim 8, wherein the sample chamber is provided with a take-off mechanism, the take-off mechanism comprising:
a support plate;
the adjusting rod is arranged in the accommodating space, one end of the adjusting rod is connected with the supporting plate, one end of the adjusting rod, which is far away from the supporting plate, penetrates through the top of the sample chamber and extends out of the accommodating space, and the adjusting rod can be movably arranged relative to the sample chamber; and
at least one material taking part, wherein one end of the material taking part is connected to the supporting plate, and one end of the material taking part, which is far away from the supporting plate, is separably connected with the sample parking frame.
10. An analytical device comprising an analytical detection chamber and a bulk sample introduction system as in claim 8 or 9.
11. A batch sample introduction method is characterized by comprising the following steps:
s1: preparing a sample in an air-isolated environment, placing the prepared sample in a sample parking frame, and placing the sample parking frame in which the sample is placed in a sealed space of a transfer cabin;
s2: vacuumizing the sealed space by using an air pump to form a pre-vacuum environment in the sealed space;
s3: placing the sample transfer device loaded with the sample into the accommodating space of the sample chamber, and sealing the accommodating space;
s4: vacuumizing the accommodating space to form a vacuum environment in the accommodating space;
s5: injecting inert gas into the sealed space by using an inert gas source;
s6: opening the transfer cabin to enable the sealed space to be communicated with the accommodating space;
s7: the sample holder is retained in the accommodating space.
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| CN202210566423.4A CN114660315B (en) | 2022-05-24 | 2022-05-24 | Sample transfer device, batch sample introduction system, analysis equipment and batch sample introduction method |
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| CN114660315B (en) | 2022-10-14 |
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