CN216411321U - Tray for placing sample rack, sample introduction device and sample analysis instrument - Google Patents

Abstract

The application discloses a tray, sampling device, sample analysis instrument for placing sample frame belongs to medical instrument technical field. This tray is used for placing the sample frame, and the tray includes tray body and spacing subassembly. The tray body is provided with a guide piece, a groove is formed in the guide piece, and a through hole is formed in the bottom of the groove; the limiting assembly comprises a rotating piece and a first elastic piece, the rotating piece is rotatably installed in the groove, the rotating piece comprises a first abutting end and a second abutting end far away from the first abutting end, and the first elastic piece is arranged between the first abutting end and the groove so that the first abutting end extends out of the groove and the second abutting end can extend out of the through hole. Because the first elastic component in the groove can be supported between the first butt end of the rotating component and the groove, when the tray is installed and taken out, the first elastic component can provide elastic supporting force to enable the first butt end to stretch out of the groove and block the sample frame from sliding out of the tray body along the guide component, and safety is improved.

Description

Tray for placing sample rack, sample introduction device and sample analysis instrument

Technical Field

The application relates to the field of medical equipment, in particular to a tray for placing a sample rack, a sample feeding device and a sample analysis instrument.

Background

Currently, in vitro diagnosis is a widely used diagnostic method in the medical field, and judges human pathological changes by collecting body fluids, excretions and secretions of a human body to perform chemical composition or chemical reaction analysis. In the period of sudden and great-infectious diseases like new coronavirus, hospitals need to detect a large amount of samples every day, so that a production line type sample injection device is needed, the device can automatically convey the samples into an in-vitro diagnosis device at high efficiency, and the working efficiency of the in-vitro diagnosis device is improved.

When the conventional assembly line type sample injection equipment is used, a sample rack is manually placed on a sample rack tray, the sample rack tray is placed in a sample injection channel of the assembly line type sample injection equipment, and after a sample is detected, the sample is manually taken out from a recovery channel of the assembly line type sample injection equipment. However, in the assembly line type sample rack tray, when the sample rack tray is mounted and removed, the sample rack is easily slid back and forth in the tray, and thus the sample rack may slide out of the sample rack tray from one end of the sample rack tray.

SUMMERY OF THE UTILITY MODEL

The application provides a tray, sampling device, sample analysis instrument for placing sample frame for solve pipelined's sample frame tray among the prior art when placing in the inlet channel and when taking out from the recovery passageway, the sample frame slides around in the tray easily, leads to the sample frame probably to follow the problem of the one end roll-off sample frame tray of sample frame tray.

In order to solve the above problems, the present application provides: a tray for holding sample racks, comprising:

the tray comprises a tray body, wherein the tray body is provided with a guide piece, the guide piece is provided with a groove, and the bottom of the groove is provided with a through hole;

the limiting assembly comprises a rotating piece and a first elastic piece, the rotating piece is rotatably installed in the groove, the rotating piece comprises a first abutting end and a second abutting end far away from the first abutting end, and the first elastic piece is arranged between the first abutting end and the groove so that the first abutting end can stretch out of the groove and the second abutting end can stretch out of the through hole.

In a possible embodiment, the rotating member is further provided with a third abutting end above the second abutting end, and when the first abutting end can extend out of the groove, the third abutting end can abut against the bottom of the groove.

In a possible embodiment, when the first abutting end can protrude out of the groove, the third abutting end abuts against the bottom of the groove, and the second abutting end protrudes outside the through hole.

In a possible embodiment, two opposite sides of the groove are respectively provided with a rotation hole, and two back sides of the rotation member are respectively provided with a rotation shaft rotatably penetrating through the rotation holes.

In a possible embodiment, a through groove is formed on the rotating member between the two rotating shafts, and an elastic deformation portion is formed between the rotating shafts and the through groove.

In a possible implementation manner, a limiting groove is further formed in the bottom of the groove and behind the through hole, the limiting groove is located on one side, away from the through hole, of the rotating hole, the first elastic piece abuts between the limiting groove and the first abutting end, and the elastic deformation portion does not abut against the limiting groove.

In a possible embodiment, two surfaces of the guide piece, which are far away from the groove, are respectively provided with a limiting protrusion, and the two limiting protrusions respectively extend towards the direction far away from the groove.

In a possible embodiment, a top surface of the rotating member near the first abutting end forms a guide surface having a protrusion thereon.

The present application further provides: a sample introduction device comprises a loading seat and a tray provided by any one of the embodiments, wherein a sample introduction channel for placing the tray is formed in the loading seat.

The sample feeding device further comprises a pushing assembly;

at least one of two sides of the sample feeding channel is provided with a guide groove, and a limiting plate is arranged on the guide groove;

the pushing assembly comprises a support, a pushing piece and a second elastic piece, the pushing piece is rotatably arranged on the support, the support can reciprocate along the direction from an inlet to an outlet of the sample feeding channel, so that the pushing piece can be movably arranged in the guide groove, the pushing assembly has a first state and a second state, the first state means that the tray is not placed in the sample feeding channel and the pushing piece does not enter the sample feeding channel, and the second state means that the tray is placed in the sample feeding channel; the second elastic piece is arranged between the pushing piece and the bracket;

the limiting plate is abutted against the pushing piece in the first state of the pushing assembly and used for limiting the pushing piece to rotate towards the sample feeding channel.

The present application further provides: a sample analysis instrument comprising a sample introduction device as provided in any of the above embodiments.

The beneficial effect of this application is: the application provides a tray, sampling device, sample analysis instrument for placing sample frame, when the sample frame was placed into the tray body along the length direction of guide, because the first elastic component in the slot can set up between the first butt end and the slot of rotating member for first elastic component can provide the elastic support power and make first butt end can stretch out the slot and block sample frame along guide roll-off tray body. Therefore, the arrangement of the limiting assembly avoids the situation that the sample rack slides out of the tray along the length direction of the guide piece when the tray is installed and taken out, and the safety is improved. Simultaneously, because the through-hole can be stretched out to the second butt end, when this tray was placed in the injection channel, the injection channel can promote the second butt end rebound for the rotating member rotates and makes first butt end rebound to not blockking sample frame roll-off tray, thereby makes things convenient for sample frame to carry out sample analysis in getting into the sample analysis instrument.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic diagram of a tray with a sample rack mounted thereon according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a tray provided by an embodiment of the present invention;

FIG. 3 illustrates a partially enlarged exploded view of a tray provided by an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a tray provided by an embodiment of the present invention with a rotating member blocking a sample rack;

FIG. 5 is a schematic cross-sectional view of a tray provided by an embodiment of the present invention when the rotating member does not block the sample rack;

FIG. 6 is a schematic structural view of a rotating member of the tray provided by an embodiment of the present invention;

fig. 7 is a schematic diagram illustrating an explosion structure of a sample injection device according to an embodiment of the present invention;

fig. 8 is a schematic diagram illustrating an exploded structure of a pushing assembly of a sample injection device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of the sample injection device provided by the embodiment of the utility model when the push piece abuts against the limit plate;

FIG. 10 is an enlarged partial schematic view of FIG. 9 at A;

fig. 11 is a schematic structural diagram of a sample feeding device provided by an embodiment of the present invention when a pusher abuts against a sample rack;

fig. 12 shows a partially enlarged structural diagram at B in fig. 11.

Description of the main element symbols:

100-a tray body; 110-a guide; 111-a first inlet end; 112-a limit protrusion; 113-a second inlet end; 120-a trench; 121-a through hole; 122-rotation hole; 123-a limiting groove; 200-a spacing assembly; 210-a rotating member; 211-a first abutment end; 212-a third abutment end; 213-a second abutment end; 214-a guide surface; 215-axis of rotation; 216-through slots; 217-elastic deformation part; 220-a first elastic member; 230-a first rotational direction; 240-second rotational direction; 300-a sample rack; 400-loading seat; 410-a sample introduction channel; 420-a guide groove; 500-a pushing assembly; 510-a stent; 520-a pushing piece; 530-a second elastic member; 600-limiting plate.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only 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 one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example one

Referring to fig. 1, 2, 3 and 4, the present embodiment provides a tray for holding a sample rack, which is applied in a sample introduction device of a sample analysis instrument and used for holding a sample rack 300. The tray comprises a tray body 100 and a limiting assembly 200, wherein the tray body 100 is provided with a guide piece 110, a groove 120 is formed in the guide piece 110, and a through hole 121 is formed in the bottom of the groove 120. The limiting assembly 200 comprises a rotating member 210 and a first elastic member 220, the rotating member 210 is rotatably installed in the groove 120, the rotating member 210 comprises a first abutting end 211 and a second abutting end 213 far away from the first abutting end 211, and the first elastic member 220 is arranged between the first abutting end 211 and the groove 120, so that the first abutting end 211 can extend out of the groove 120 and the second abutting end 213 can extend out of the through hole 121.

According to the tray provided by the embodiment of the application, when the sample rack 300 is placed into the tray body 100 along the length direction of the guide member 110, since the first elastic member 220 in the groove 120 can be arranged between the first abutting end 211 of the rotating member 210 and the groove 120, the first elastic member 220 can provide elastic supporting force so that the first abutting end 211 can extend out of the groove 120 and block the sample rack 300 from sliding out of the tray body 100 along the guide member 110. Therefore, the arrangement of the limiting assembly 200 prevents the sample rack 300 from sliding out of the tray along the length direction of the guide 110 when the tray is installed and taken out, and the safety is improved. Meanwhile, since the second abutting end 213 can extend out of the through hole 121, when the tray is placed in the sample channel 410, the sample channel 410 can push the second abutting end 213 to move upwards, so that the rotating member 210 rotates and the first abutting end 211 moves downwards to not block the sample rack 300 from sliding out of the tray, thereby facilitating the sample rack 300 to enter the sample analyzer for sample analysis.

When the first elastic member 220 is stretched and the first abutting end 211 is lifted upwards, the rotating direction of the rotating member 210 is the first rotating direction 230; when the first elastic member 220 is compressed and the first abutting end 211 moves downward, the rotating direction of the rotating member 210 is the second rotating direction 240.

The first elastic member 220 may be a tension spring, a plate spring, or the like, which has elasticity and can rotate the rotating member 210.

Meanwhile, it should be noted that the tray and the sample rack 300 provided by the present application are both easy to detach, so that the tray and the sample rack 300 provided by the present application are independent from each other in the processes of production, sale, and the like, and are only used in combination when being used.

Example two

As shown in fig. 4, 5 and 6, the present embodiment provides an arrangement manner of the limiting assembly 200 based on the first embodiment. The rotating member 210 is further provided with a third abutting end 212 above the second abutting end 213, and when the first abutting end 211 can extend out of the groove 120, the third abutting end 212 can abut against the bottom of the groove 120.

Specifically, under the elastic supporting force of the first elastic member 220, the first abutting end 211 is lifted upwards to block the sample holder 300 from sliding out from the first inlet end 111 of the guide member 110, and at this time, the third abutting end 212 of the rotating member 210 far away from the first abutting end 211 can abut against the bottom of the groove 120, so as to avoid that the rotating member 210 excessively rotates towards the first rotating direction 230 under the supporting force of the first elastic member 220, and further the normal operation of the limiting assembly 200 is affected. Moreover, the third abutting end 212 is also arranged to keep the first elastic member 220 in a compressed state, so as to provide a certain supporting force, and the rotating member 210 is more sensitive to rotate. Meanwhile, the limiting assembly 200 and the tray body 100 are kept in a stressed state, and the problem that noise is easy to generate due to loose structure between the limiting assembly 200 and the tray body 100 can be avoided.

As shown in fig. 3, 4 and 5, in the above embodiment, optionally, when the first abutting end 211 can extend out of the groove 120, the third abutting end 212 abuts against the bottom of the groove 120, and the second abutting end 213 extends out of the through hole.

The side of the rotating member 210 away from the first abutting end 211 is further provided with a second abutting end 213 below the third abutting end 212, and the second abutting end 213 is movably disposed through the through hole 121 and can extend outside the through hole 121.

Specifically, when the tray body 100 is not placed in the sample channel 410, that is, when the second abutting end 213 of the rotary member 210 is not in contact with the sample channel 410, the first abutting end 211 can be lifted up by the elastic supporting force of the first elastic member 220 to block the sample rack 300 from sliding out of the tray body 100, and meanwhile, the third abutting end 212 abuts against the bottom of the groove 120, and the second abutting end 213 below the third abutting end 212 can also extend out of the through hole 121 at the bottom of the groove 120. When the tray body 100 is placed in the sample channel 410, the second abutting end 213 exposed from the lower portion of the through hole 121 can abut against the sample channel 410, so that the sample channel 410 can push the second abutting end 213 to move upward, and further the rotating member 210 rotates in the second rotation direction 240, so that the first elastic member 220 is compressed, the third abutting end 212 does not abut against the bottom of the groove 120, and the first abutting end 211 moves downward to a position where the sample rack 300 cannot be prevented from sliding out of the tray body 100. Therefore, the second abutting end 213 is disposed to enable the tray body 100 not to block the sample rack 300 from sliding out of the tray body 100 from the first inlet end 111 when the tray body 100 is placed in the sample channel 410, so as to facilitate the sample rack 300 to enter the sample analyzer for sample analysis.

As shown in fig. 3, in the above embodiment, optionally, two opposite sides of the groove 120 are respectively provided with a rotation hole 122, two opposite sides of the rotating member 210 are respectively provided with a rotation shaft 215, and the rotation shaft 215 is rotatably disposed through the rotation hole 122.

Specifically, the rotating shafts 215 disposed on the two opposite sides of the rotating member 210 are rotatably disposed in the rotating holes 122 of the groove 120, so that the rotating member 210 can rotate in the groove 120.

The rotating hole 122 may be disposed on a side of the through hole 121 far from the first inlet end 111, such that the rotation center of the rotating member 210 is located on a side of the through hole 121 far from the first inlet end 111, and when the sample rack 300 enters the tray body 100, the moving direction of the sample rack 300 is close to the second rotating direction 240, so as to facilitate the sample rack 300 to slide into the tray body 100 more smoothly along the length direction of the guide member 110.

As shown in fig. 3 and 6, in the above embodiment, optionally, a through groove 216 is formed on the rotating element 210 between the two rotating shafts 215, and an elastic deformation portion 217 is formed between the rotating shafts 215 and the through groove 216.

Specifically, a through groove 216 is formed between the two rotary shafts 215 on the rotary member 210, so that the thickness of the elastic deformation portion 217 between the rotary shafts 215 and the through groove 216 is reduced, and the elastic deformation portion 217 can be elastically deformed. When the rotating shafts 215 are inserted into the rotating holes 122, the elastic deformation portion 217 can be bent toward the through groove 216, so as to shorten the distance between the two rotating shafts 215 and facilitate the installation of the rotating member 210 into the groove 120.

As shown in fig. 3, in the above embodiment, optionally, a limiting groove 123 is further disposed at the bottom of the groove 120 and behind the through hole 121, the limiting groove 123 is located at a side of the rotation hole 122 away from the through hole 121, the first elastic member 220 abuts between the limiting groove 123 and the first abutting end 211, and the elastic deformation portion 217 does not abut against the limiting groove 123.

Specifically, the limiting groove 123 at the bottom of the groove 120 is located on a side of the rotation hole 122 away from the through hole 121 and below the first abutting end 211, and at this position, the first elastic element 220 abuts between the limiting groove 123 and the first abutting end 211, so that the first elastic element 220 can rotate the rotation element 210 in the first rotation direction 230 by providing an elastic supporting force. The arrangement of the limiting groove 123 enables one end of the first elastic element 220 to be limited in the limiting groove 123, and avoids the failure of the limiting assembly 200 caused by the sliding of the end of the first elastic element 220 abutting against the groove 120. Meanwhile, the elastic deformation part 217 is not abutted against the limit groove 123, so that the elastic deformation part 217 is prevented from being stressed and deformed to influence the normal work of the rotating member.

Wherein, can set up spacing post on the one side of first butt end 211 and first elastic component 220 butt, when first elastic component 220 was the spring, spacing post can insert the one end of spring to it is more firm to make between spring and the spacing post be connected.

EXAMPLE III

As shown in fig. 2 and fig. 3, in this embodiment, a technical solution is further defined on the basis of the first embodiment or the second embodiment. Two sides of the guide member 110 away from the groove 120 are respectively provided with a limiting protrusion 112, and the two limiting protrusions 112 respectively extend towards the direction away from the groove 120.

Specifically, at a position near the top of the guide member 110, the two sides of the guide member 110 far from the groove 120 are provided with limiting protrusions 112, and the limiting protrusions 112 extend in a direction far from the groove 120. When the sample rack 300 is installed in the tray body 100, the stopper protrusion 112 can restrict the sample rack 300 from being separated from the guide 110 in a direction away from the tray body 100, thereby improving safety.

As shown in fig. 3 and 5, in the above embodiment, optionally, the top surface of the rotating member 210 near the first abutting end 211 is formed with a guiding surface 214, and the guiding surface 214 has a protrusion.

Specifically, the guide 110 includes a first entrance end 111 and a second entrance end 113, and when the sample holder 300 enters the tray body 100 from the first entrance end 111 along the length direction of the guide 110, the sample holder 300 can press the first abutting end 211 downward and slide into the tray body 100 along the guide surface 214. In the process of pressing down the first abutting end 211, the first elastic member 220 is compressed, and the rotating member 210 rotates in the second rotating direction 240, thereby enabling the sample holder 300 to slide into the tray body 100 along the length direction of the guide member 110. Therefore, the guide surface 214 is provided to allow the sample holder 300 to press down the first abutting end 211, so as to prevent the first abutting end 211 from affecting the sliding of the sample holder 300 into the tray body 100 along the longitudinal direction of the guide 110. The guide surface 214 may have a protrusion (not shown), and when the rotating member 210 rotates in the first rotating direction 230, the protrusion may be engaged with the groove on the bottom of the sample holder 300, so as to further facilitate the fixing of the rotating member 210 to the sample holder 300.

Wherein, a handle may be provided on the tray body 100 near the second entrance end 113 of the guide 110, and a gap of a certain width may exist between the handle and the guide 110, through which the sample holder 300 may slide into the tray body 100 from the second entrance end 113 of the guide 110 along the length direction of the guide 110.

Example four

As shown in fig. 7-12, another embodiment of the present application provides a sample introduction device that can be used in a sample analysis instrument for loading and transporting a sample rack 300. The sample introduction device comprises a loading seat 400 and a tray in any of the above embodiments, wherein a sample introduction channel 410 for placing the tray is formed on the loading seat 400. The sample introduction device further comprises a pushing assembly 500. At least one of two sides of the sample introduction channel 410 is provided with a guide groove 420, and the guide groove 420 is provided with a limit plate 600. The pushing assembly 500 includes a bracket 510, a pushing element 520 and a second elastic element 530, the pushing element 520 is rotatably disposed on the bracket 510, and the bracket 510 can reciprocate along a direction from an inlet to an outlet of the sample channel 410, so that the pushing element 520 can be movably disposed in the guide slot 420, and the pushing assembly 500 has a first state and a second state, the first state indicates that the tray is not disposed in the sample channel 410 and the pushing element 520 does not enter the sample channel 410, and the second state indicates that the tray is disposed in the sample channel 410. The second elastic member 530 is disposed between the pushing member 520 and the bracket 510. The position-limiting plate 600 is disposed behind the guiding groove 420 of the loading seat 400, and the position-limiting plate 600 abuts against the pushing element 520 in the first state of the pushing assembly 500, so as to limit the rotation of the pushing element 520 towards the sample channel 410.

The sample introduction device provided by the embodiment of the application has the tray provided by any one of the above embodiments, so that all the beneficial effects of the tray provided by any one of the above embodiments are achieved, and the description is omitted here.

Specifically, the loading seat 400 is provided with a sample introduction channel 410, and at least one of two sides of the sample introduction channel 410 is provided with a guide groove 420. Meanwhile, an inlet is arranged at one end of the sample introduction channel 410, an outlet is arranged at the other end of the sample introduction channel 410, and an opening which is completely opened is formed at the top of the sample introduction channel 410. A tray can be placed into the sample channel 410 from the inlet of the sample channel 410. When the tray with the sample rack 300 is not placed in the sample channel 410, i.e. the pushing assembly 500 is in the first state, the limiting plate 600 limits the rotation of the pushing element 520 towards the sample channel 410, and the pushing element 520 is located in the guiding groove 420. Thus, when the tray of the sample rack 300 with the sample rack 300 is required to be placed in the sample channel 410, the tray of the sample rack 300 can be easily placed in the sample channel 410 due to the pushing element 520 being located in the guide groove 420, so that the sample rack 300 is prevented from being blocked by the pushing element 520, and the sample rack 300 can be conveniently placed in.

EXAMPLE five

Another embodiment of the present application provides a sample analysis instrument comprising a sample introduction device as in any of the embodiments above.

The sample analyzer provided in the embodiments of the present application has the sample injection device provided in any one of the above embodiments, and therefore, all the beneficial effects of the sample injection device provided in any one of the above embodiments are not repeated herein.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. A tray for holding sample racks, comprising:

the tray comprises a tray body, wherein the tray body is provided with a guide piece, the guide piece is provided with a groove, and the bottom of the groove is provided with a through hole;

the limiting assembly comprises a rotating piece and a first elastic piece, the rotating piece is rotatably installed in the groove, the rotating piece comprises a first abutting end and a second abutting end far away from the first abutting end, and the first elastic piece is arranged between the first abutting end and the groove so that the first abutting end can stretch out of the groove and the second abutting end can stretch out of the through hole.

2. The tray according to claim 1, wherein a third abutting end is further provided above the second abutting end of the rotating member, and when the first abutting end can extend out of the groove, the third abutting end can abut against the bottom of the groove.

3. A pallet according to claim 2, wherein when said first abutment end is capable of protruding out of said groove, said third abutment end abuts against a bottom of said groove and said second abutment end protrudes outside of said through hole.

4. The tray according to claim 3, wherein the two opposite sides of the groove are respectively provided with a rotation hole, and the two back sides of the rotation member are respectively provided with a rotation shaft rotatably penetrating the rotation hole.

5. The tray according to claim 4, wherein a through groove is formed between the two rotating shafts on the rotating member, and an elastic deformation portion is formed between the rotating shafts and the through groove.

6. The tray according to claim 5, wherein a limiting groove is further formed in the bottom of the groove and behind the through hole, the limiting groove is located on one side, away from the through hole, of the rotating hole, the first elastic member abuts between the limiting groove and the first abutting end, and the elastic deformation portion does not abut against the limiting groove.

7. The tray according to any one of claims 1 to 6, wherein two sides of the guide member away from the groove are respectively provided with a limiting protrusion, and the two limiting protrusions respectively extend towards the direction away from the groove.

8. The tray of claim 7, wherein a top surface of the rotating member proximate the first abutting end forms a guide surface having a protrusion thereon.

9. A sample introduction device, comprising a loading seat and a tray as claimed in any one of claims 1 to 8, wherein the loading seat is provided with a sample introduction channel for placing the tray;

the sample feeding device further comprises a pushing assembly;

at least one of two sides of the sample feeding channel is provided with a guide groove, and a limiting plate is arranged on the guide groove;

the pushing assembly comprises a support, a pushing piece and a second elastic piece, the pushing piece is rotatably arranged on the support, the support can reciprocate along the direction from an inlet to an outlet of the sample feeding channel, so that the pushing piece can be movably arranged in the guide groove, the pushing assembly has a first state and a second state, the first state means that the tray is not placed in the sample feeding channel and the pushing piece does not enter the sample feeding channel, and the second state means that the tray is placed in the sample feeding channel; the second elastic piece is arranged between the pushing piece and the bracket;

the limiting plate is abutted against the pushing piece in the first state of the pushing assembly and used for limiting the pushing piece to rotate towards the sample feeding channel.

10. A sample analysis instrument comprising a sample introduction device according to claim 9.

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