CN216498974U

CN216498974U - Test object loading assembly

Info

Publication number: CN216498974U
Application number: CN202120561423.6U
Authority: CN
Inventors: 徐佳; 胡今科; 王振华; 于占洋
Original assignee: Beijing Zhixin Shangzhi Technology Co ltd
Current assignee: Beijing Zhixin Shangzhi Technology Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2022-05-13
Anticipated expiration: 2031-03-18

Abstract

The utility model discloses a test object loading assembly, which comprises: the mounting body is provided with a plurality of mounting positions which are arranged at intervals along a preset direction, and the mounting body can be turned over from a first position to a second position; and a plurality of test cups, which are arranged at the plurality of mounting positions in a one-to-one correspondence manner, wherein each test cup comprises a pre-assembly carrier and a mixing body, the pre-assembly carrier is provided with a first liquid storage tank and a second liquid storage tank which is separated from the first liquid storage tank, the mixing body is provided with a mixing tank, the mixing body covers the pre-assembly carrier, and the first liquid storage tank and the second liquid storage tank are communicated with the mixing tank. The test object loading assembly can simultaneously realize the rapid mixing of substances in a plurality of test cups by turning the mounting body, can save a large amount of time when detecting a large amount of clinical samples, and can improve the mixing uniformity of the mixture of the samples and the intermediate reagent and the starting reagent.

Description

Test object loading assembly

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a test object loading assembly.

Background

A blood clotting meter, i.e., a blood coagulation analyzer, is an instrument for laboratory examination of thrombi and hemostasis. In some testing projects, the sample, the intermediate reagent and the start reagent need to be mixed together before testing the sample, and then testing is carried out.

The conventional method is to add a sample and an intermediate reagent into a test cup in advance, when a test is needed, an operator injects a start reagent into the test cup by using a dropper to mix the start reagent with the sample and the intermediate reagent, and then inserts the test cup into a slot of a blood coagulation analyzer to wait for the test. In the above-described method, the initiator reagent is dropped into the mixture of the sample and the intermediate reagent, which causes a problem of uneven mixing. In addition, for the detection of a large amount of clinical samples, the manual mixing operation needs to be carried out for a plurality of times, which is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a test object loading assembly which can improve the uniformity of mixing of a mixture of a sample and an intermediate reagent and a start reagent and solve the problem of time and labor waste in the traditional method.

A test object loading assembly according to an embodiment of the first aspect of the present invention, the test object loading assembly comprising: the mounting body is provided with a plurality of mounting positions which are arranged at intervals along a preset direction, and the mounting body can be turned over from a first position to a second position; the test cups are arranged at the installation positions in a one-to-one correspondence mode, each test cup comprises a pre-assembly carrier and a mixture, the pre-assembly carrier is provided with a first liquid storage tank and a second liquid storage tank which is separated from the first liquid storage tank, the mixture is provided with a mixing tank, the mixture covers the pre-assembly carrier, and the first liquid storage tank and the second liquid storage tank are communicated with the mixing tank; wherein the first and second reservoirs are located below the mixing tank when the mounting body is in the first position, and the first and second reservoirs are located above the mixing tank when the mounting body is in the second position.

The test object loading assembly provided by the embodiment of the utility model at least has the following technical effects:

when the test object loading assembly is used, different substances can be put into the first liquid storage groove and the second liquid storage groove which are pre-loaded with carriers, for example, a sample and an intermediate reagent are put into the first liquid storage groove, and a starting reagent is put into the second liquid storage groove; then covering the mixture on a pre-installed carrier; then, the plurality of test cups are arranged on a plurality of mounting positions of the mounting body in a one-to-one correspondence manner; when a test is needed, an operator or a mechanical tool operates the mounting body to overturn from the first position to the second position, so that the test cup is driven to overturn, and the substances in the first liquid storage tank and the substances in the second liquid storage tank enter the mixing tank of the mixture under the action of gravity and are mixed together to wait for the test. According to the test cup, the first liquid storage tank and the second liquid storage tank are arranged on the preassembly carrier, the mixture with the mixing tank is covered on the preassembly carrier, when a test is needed, the purpose that the mixture of the sample and the intermediate reagent and the starting reagent enter the mixing tank and are mixed simultaneously can be achieved by turning over the mounting body, and the mixing uniformity of the mixture of the sample and the intermediate reagent and the starting reagent can be improved. In addition, the test object loading assembly can simultaneously realize the rapid mixing of substances in a plurality of test cups by turning over the mounting body, and can save a large amount of time when a large amount of clinical samples are detected.

According to some embodiments of the utility model, the mounting location is a mounting groove opened on the mounting body.

According to some embodiments of the utility model, the mounting groove is provided with an assembling and disassembling opening, the side wall of the mounting groove is provided with a guide groove, the test cup is in sliding fit with the guide groove, and the guide groove is used for guiding the test cup to enter and exit the mounting groove through the assembling and disassembling opening.

According to some embodiments of the utility model, the guide groove comprises a first limiting wall and a second limiting wall spaced from and disposed opposite to the first limiting wall, the pre-assembly carrier has a first limiting portion, the mixing body has a second limiting portion, and the first limiting portion is disposed opposite to the second limiting portion;

one side of the first limiting part, which is far away from the second limiting part, is abutted against the second limiting wall, and one side of the second limiting part, which is far away from the first limiting part, is abutted against the first limiting wall.

According to some embodiments of the utility model, the guide groove comprises a first limiting wall and a second limiting wall spaced apart from and disposed opposite to the first limiting wall, the pre-assembly carrier has a first limiting portion, the mixing body has a second limiting portion, the first limiting portion and the second limiting portion are disposed opposite to each other, and the first limiting portion and the second limiting portion penetrate into the guide groove and are located between the first limiting wall and the second limiting wall; the test object loading assembly further comprises a pre-tightening piece, the mounting body is further provided with a mounting hole which is communicated with the mounting groove and opposite to one side, away from the mixing body, of the pre-tightening carrier, the pre-tightening piece penetrates through the mounting hole and abuts against one side, away from the mixing body, of the pre-tightening carrier, and therefore the second limiting portion abuts against the first limiting wall.

According to some embodiments of the utility model, the pre-load carrier has a first cover side, the first reservoir notch and the second reservoir notch are both formed in the first cover side, the mixing body has a second cover side, and the mixing well notch is formed in the second cover side, the second cover side being positioned opposite the first cover side such that the first reservoir notch and the second reservoir notch are both positioned opposite the mixing well notch.

According to some embodiments of the utility model, the first cover side is provided with a sealing groove surrounding the notch of the first reservoir and the notch of the second reservoir, and the second cover side is provided with a sealing protrusion surrounding the notch of the mixing tank, the sealing protrusion being inserted into the sealing groove.

According to some embodiments of the utility model, a clamping groove is formed in the side wall of the sealing groove, and a buckle is arranged on the sealing protrusion and clamped in the clamping groove.

According to some embodiments of the utility model, at least two of the locking grooves are formed in the side wall of the sealing groove, the at least two locking grooves are spaced apart from each other, the sealing protrusion is provided with at least two of the fasteners, the at least two of the fasteners are spaced apart from each other, and the at least two of the fasteners are correspondingly locked in the at least two locking grooves.

According to some embodiments of the utility model, the mixing tank comprises a lead-in area and a test area communicating with the lead-in area, the lead-in area being closer to the slot of the mixing tank than the test area, the lead-in area being funnel-shaped, and the lead-in area having a small cross-sectional end and a large cross-sectional end opposite the small cross-sectional end, the small cross-sectional end being closer to the test area than the large cross-sectional end.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a test object loading assembly according to an embodiment of the present invention;

FIG. 2 is a schematic view of a partially enlarged structure at A of the graph shown in FIG. 1;

FIG. 3 is a schematic structural diagram of a mounting body according to an embodiment of the utility model;

FIG. 4 is a schematic diagram of an exploded structure of a test cup according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a test cup according to an embodiment of the present invention;

FIG. 6 is a first schematic diagram of the structure of a pre-loaded carrier according to one embodiment of the present invention;

FIG. 7 is a second schematic block diagram of a preloaded carrier according to an embodiment of the utility model;

fig. 8 is a schematic structural diagram of a hybrid according to an embodiment of the present invention.

Reference numerals:

100. an installation body; 110. mounting grooves; 111. assembling and disassembling the opening; 112. avoiding the mouth; 120. a guide groove; 121. a first limiting wall; 122. a second limiting wall; 130. mounting holes;

200. a test cup; 210. pre-loading the carrier; 211. a first liquid sump; 212. a second liquid sump; 213. a first closed side; 214. a sealing groove; 2141. a first side wall; 2142. a second side wall; 21421. a first wall surface; 21422. a second wall surface; 2143. a first card slot; 215. a first limiting part; 216. positioning a groove; 220. mixing; 221. a mixing tank; 2211. a lead-in area; 2212. a test zone; 222. a second closed side; 223. sealing the protrusion; 2231. an inner sidewall; 2232. an outer sidewall; 22321. a third wall surface; 22322. a fourth wall surface; 2234. a second buckle; 224. a second limiting part.

Detailed Description

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

In the description of the present invention, 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", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, an embodiment relates to a test object loading assembly including a mounting body 100 and a plurality of test cups 200.

The mounting body 100 is provided with a plurality of mounting positions which are arranged at intervals along a preset direction, the plurality of test cups 200 are arranged at the plurality of mounting positions in a one-to-one correspondence manner, and the mounting body 100 can be turned over from a first position to a second position; as shown in FIGS. 4 and 5, each test cup 200 comprises a pre-loaded carrier 210 and a mixing member 220, the pre-loaded carrier 210 has a first reservoir 211 and a second reservoir 212 spaced apart from the first reservoir 211, and as shown in FIG. 7, the mixing member 220 has a mixing chamber 221, the mixing member 220 covers the pre-loaded carrier 210, and the first reservoir 211 and the second reservoir 212 are communicated with the mixing chamber 221; the first and

second reservoirs

211 and 212 are located below the mixing tank 221 when the mounting body 100 is in the first position, and the first and

second reservoirs

211 and 212 are located above the mixing tank 221 when the mounting body 100 is in the second position.

As shown in FIG. 4, the test object loading assembly can be used by placing different substances in the first reservoir 211 and the second reservoir 212 of the pre-loaded carrier 210, for example, placing a sample and an intermediate reagent in the first reservoir 211, and placing a priming reagent in the second reservoir 212; the mixture 220 is then applied to the pre-load carrier 210; as shown in fig. 1, a plurality of test cups 200 are then loaded into a plurality of mounting positions of the mounting body 100 in a one-to-one correspondence (with the mounting body 100 in the first position); when a test is to be performed, as shown in fig. 1, 6 and 8, an operator or a machine tool may manipulate the mounting body 100 to flip from the first position to the second position, thereby turning the test cup 200 over, so that the substance in the first reservoir 211 and the substance in the second reservoir 212 may be introduced into the mixing tank 221 of the mixing body 220 under the action of gravity and mixed together, and await the test. In the test cup, the first liquid storage tank 211 and the second liquid storage tank 212 are arranged on the pre-installed carrier 210, and the mixing body 220 with the mixing tank 221 is covered on the pre-installed carrier 210, so that when a test is required, the mixture of the sample and the intermediate reagent and the start reagent can enter the mixing tank and be mixed simultaneously in a mode of turning the installation body 100, and the mixing uniformity of the mixture of the sample and the intermediate reagent and the start reagent can be improved. In addition, the above-mentioned test object loading assembly can simultaneously realize rapid mixing of substances in a plurality of test cups 200 by turning the mounting body 100, and can save a large amount of time when detecting a large amount of clinical samples.

Wherein, the mixture 220 be transparent member, the mixture 220 can be passed through, test light can shine on the misce bene through the mixture 220 to the test.

As shown in fig. 3, in one embodiment, the mounting position is a mounting groove 110 opened on the mounting body 100, and the mounting grooves 110 are arranged in a transverse direction. In other embodiments, the mounting position may also be a mounting cavity opened on the mounting body 100.

As shown in fig. 1 and fig. 3, in the present embodiment, the mounting position is a mounting groove 110 opened on the mounting body 100, the mounting groove 110 has an assembling/disassembling opening 111, a side wall of the mounting groove 110 is provided with a guide groove 120, the test cup 200 is slidably engaged with the guide groove 120, and the guide groove 120 is used for guiding the test cup 200 to enter and exit the mounting groove 110 through the assembling/disassembling opening 111. Thus, the test cup 200 can slide into the mounting groove 110 through the guide groove 120, or slide out of the mounting groove 110 through the guide groove 120, and the operation is convenient.

Specifically, the mounting/dismounting opening 111 is a front opening of the mounting groove 110, the guide grooves 120 are formed on both left and right sides of the mounting groove 110, and the test cup 200 can enter the guide grooves 120 while entering the mounting groove 110, and enter the mounting groove 110 along the guide grooves 120.

Further, the upper side of the mounting groove 110 has an escape opening 112, and the escape opening 112 is used to escape the test cup 200 so that the test cup 200 is not interfered when entering and exiting the mounting groove 110.

As shown in fig. 2, in one embodiment, the guide groove 120 includes a first limiting wall 121 and a second limiting wall 122 spaced apart from and disposed opposite to the first limiting wall 121, the pre-assembly carrier 210 has a first limiting portion 215, the mixing body 220 has a second limiting portion 224, the first limiting portion 215 and the second limiting portion 224 are disposed opposite to each other, and the first limiting portion 215 and the second limiting portion 224 both penetrate into the guide groove 120 and are located between the first limiting wall 121 and the second limiting wall 122; referring to fig. 3, the test object loading assembly further includes a pre-tightening member (not shown), the mounting body 100 further has a mounting hole 130 communicating with the mounting groove 110 and opposite to a side of the pre-installed carrier 210 away from the mixing body 220, the pre-tightening member is inserted through the mounting hole 130 and abuts against a side of the pre-installed carrier 210 away from the mixing body 220, so that the second position-limiting portion 224 abuts against the first position-limiting wall 121.

After the test cup 200 is installed in the installation groove 110, the pre-tightening member can abut against one side of the pre-tightening carrier 210 away from the mixture 220, so that the second limiting portion 224 abuts against the first limiting wall 121, the pre-tightening carrier 210 and the mixture 220 are tightly fixed together, and liquid leakage is avoided.

As shown in fig. 7, furthermore, a positioning slot 216 is provided on the side of the pre-loaded carrier 210 facing away from the mixing body 220, and the pre-loaded member penetrates into the positioning slot 216, so that the pre-loaded member can also position the pre-loaded carrier 210.

Optionally, the preload member is a screw or a pin.

In another embodiment, as shown in FIG. 2, the guide groove 120 comprises a first position-limiting wall 121 and a second position-limiting wall 122 spaced from and disposed opposite to the first position-limiting wall 121, the pre-load carrier 210 has a first position-limiting portion 215, the mixing body 220 has a second position-limiting portion 224, and the first position-limiting portion 215 is disposed opposite to the second position-limiting portion 224; one side of the first position-limiting portion 215, which is far away from the second position-limiting portion 224, abuts against the second position-limiting wall 122, and one side of the second position-limiting portion 224, which is far away from the first position-limiting portion 215, abuts against the first position-limiting wall 121. Thus, the pre-loaded carrier 210 and the mixing body 220 can be further tightened under the action of the first limiting portion 215 and the second limiting portion 224, and leakage is avoided.

In one embodiment, as shown in FIG. 6, the pre-load carrier 210 has a first cover side 213, and the notch of the first reservoir 211 and the notch of the second reservoir 212 are formed in the first cover side 213, specifically, the first reservoir 211 and the second reservoir 212 are approximately the same or identical in shape; as shown in fig. 8, the mixing body 220 has a second closed side 222, and the notch of the mixing groove 221 is formed at the second closed side 222; with continued reference to fig. 4, the second cover side 222 is disposed opposite the first cover side 213 such that the notch of the first reservoir 211 and the notch of the second reservoir 212 are disposed opposite the notch of the mixing tank 221. Before the first reservoir 211 is mixed with the contents of the second reservoir 212, the mixing body 220 is placed over the pre-loaded carrier 210; when it is desired to mix the contents of first reservoir 211 with the contents of second reservoir 212, test cup 200 is inverted so that the contents of first reservoir 211 and the contents of second reservoir 212 enter mixing well 221120 and mix together.

As shown in fig. 6 and 8, in the present embodiment, the first covering side 213 is a side of the first position-limiting portion 215 close to the second position-limiting portion 224, and the second covering side 222 is a side of the second position-limiting portion 224 close to the first position-limiting portion 215.

As shown in fig. 6, the first cover side 213 of the pre-load carrier 210 is further provided with a sealing groove 214, the sealing groove 214 is surrounded around the notch of the first fluid reservoir 211 and the notch of the second fluid reservoir 212, as shown in fig. 8, the second cover side 222 is provided with a sealing protrusion 223, the sealing protrusion 223 is surrounded around the notch of the mixing tank 221, and the sealing protrusion 223 is inserted into the sealing groove 214. When the pre-installed carrier 210 and the mixing body 220 are assembled together, the sealing protrusion 223 is inserted into the sealing groove 214, so that the pre-installed carrier 210 and the mixing body 220 can be sealed, and liquid is prevented from flowing out from between the pre-installed carrier 210 and the mixing body 220 in the process of overturning the test cup 200.

Specifically, the sealing groove 214 is a closed ring or polygonal shape, the sealing protrusion 223 is matched with the shape of the sealing groove 214, and the sealing protrusion 223 is inserted into the sealing groove 214 to realize the sealing between the pre-installed carrier 210 and the mixing body 220.

Further, as shown in fig. 4, the pre-load carrier 210 is removably attached to the mixing body 220. In this way, substances can be loaded into the first reservoir 211 and the second reservoir 212 of the pre-loaded carrier 210 when the pre-loaded carrier 210 is separated from the mixing body 220, and after the substances have been loaded, the pre-loaded carrier 210 and the mixing body 220 can be joined together and mixed.

As shown in fig. 6 and 8, a clamping groove is formed in a sidewall of the sealing groove 214, and a buckle is arranged on the sealing protrusion 223 and clamped in the clamping groove. In this way, a detachable connection of the pre-load carrier 210 to the mixing body 220 can be achieved.

Further, the lateral wall of the sealing groove 214 is provided with at least two clamping grooves which are spaced apart from each other, the sealing protrusion 223 is provided with at least two buckles which are spaced apart from each other, and the at least two buckles are correspondingly clamped in the at least two clamping grooves one to one. In this way, the stability of the connection of the pre-load carrier 210 to the mixing body 220 can be increased.

As shown in fig. 6, specifically in the embodiment, the sealing groove 214 includes a first sidewall 2141 and a second sidewall 2142 spaced apart from the first sidewall 2141, the second sidewall 2142 surrounds the first sidewall 2141, the second sidewall 2142 includes a first wall 21421 and a second wall 21422 opposite to the first wall 21421, the first wall 21421 has a first engaging groove 2143, and the second wall 21422 has a second engaging groove; as shown in fig. 8, the sealing protrusion 223 includes an inner sidewall 2231 and an outer sidewall 2232 opposite to the inner sidewall 2231, the outer sidewall 2232 includes a third wall 22321 and a fourth wall 22322 opposite to the third wall 22321, the third wall 22321 has a first latch connected to the first card slot 2143, and the fourth wall 22322 has a second latch 2234 connected to the second card slot.

As shown in fig. 8, in one embodiment, mixing tank 221 includes a lead-in 2211 and a test area 2212 in communication with lead-in 2211, lead-in 2211 is closer to the slot of mixing tank 221 than test area 2212, lead-in 2211 is funnel-shaped, and lead-in 2211 has a small cross-sectional end and a large cross-sectional end opposite the small cross-sectional end, the small cross-sectional end being closer to test area 2212 than the large cross-sectional end. Thus, after inverting test cup 200, the liquid in first reservoir 211 and second reservoir 212 can flow along the side wall of lead-in area 2211 to test area 2212, and the liquid in first reservoir 211 and second reservoir 212 can be mixed together more uniformly during the flow of the liquid along the side wall of lead-in area 2211.

It should be noted that the large cross-sectional end is the end with the larger cross-sectional area of the lead-in area 2211, the small cross-sectional end is the end with the smaller cross-sectional area of the lead-in area 2211, the cross-sectional area of the large cross-sectional end of the lead-in area 2211 is larger than that of the small cross-sectional end of the lead-in area 2211, and specific values of the cross-sectional area of the large cross-sectional end and the cross-sectional area of the small cross-sectional end are not limited.

Specifically, the sidewall of lead-in area 2211 is sloped, and the cross-sectional area of lead-in area 2211 gradually decreases from the end away from test area 2212 to the end near test area 2212.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 utility model. In this specification, the schematic representations of the terms used above do not necessarily 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.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A test object loading assembly, comprising:

the mounting body is provided with a plurality of mounting positions which are arranged at intervals along a preset direction, and the mounting body can be turned over from a first position to a second position; and

the test cups are arranged at the mounting positions in a one-to-one correspondence mode, each test cup comprises a pre-assembly carrier and a mixing body, the pre-assembly carrier is provided with a first liquid storage tank and a second liquid storage tank which is separated from the first liquid storage tank, the mixing body is provided with a mixing tank, the mixing body covers the pre-assembly carrier, and the first liquid storage tank and the second liquid storage tank are communicated with the mixing tank;

wherein the first and second reservoirs are located below the mixing tank when the mounting body is in the first position, and the first and second reservoirs are located above the mixing tank when the mounting body is in the second position.

2. The test object loading assembly of claim 1, wherein the mounting position is a mounting groove opened on the mounting body.

3. The test object loading assembly according to claim 2, wherein the mounting groove has an attachment/detachment opening, a side wall of the mounting groove is provided with a guide groove, the test cup is slidably fitted in the guide groove, and the guide groove is used for guiding the test cup to enter and exit the mounting groove through the attachment/detachment opening.

4. The test object loading assembly according to claim 3, wherein the guide groove includes a first stopper wall and a second stopper wall spaced apart from and disposed opposite to the first stopper wall, the pre-assembly carrier has a first stopper portion, the mixing body has a second stopper portion, and the first stopper portion is disposed opposite to the second stopper portion;

5. The test object loading assembly according to claim 3, wherein the guide groove includes a first stopper wall and a second stopper wall spaced apart from and opposed to the first stopper wall, the pre-assembly carrier has a first stopper portion, the mixing body has a second stopper portion, the first stopper portion is opposed to the second stopper portion, and the first stopper portion and the second stopper portion penetrate the guide groove and are located between the first stopper wall and the second stopper wall;

the test object loading assembly further comprises a pre-tightening piece, the mounting body is further provided with a mounting hole which is communicated with the mounting groove and opposite to one side, away from the mixing body, of the pre-tightening carrier, the pre-tightening piece penetrates through the mounting hole and abuts against one side, away from the mixing body, of the pre-tightening carrier, and therefore the second limiting portion abuts against the first limiting wall.

6. The test object loading assembly of claim 1, wherein the pre-load carrier has a first cover side, the notch of the first reservoir and the notch of the second reservoir are formed on the first cover side, the mixing body has a second cover side, and the notch of the mixing well is formed on the second cover side, the second cover side being disposed opposite to the first cover side, so that the notch of the first reservoir and the notch of the second reservoir are disposed opposite to the notch of the mixing well.

7. The test object loading assembly according to claim 6, wherein the first cover side is provided with a sealing groove which is defined around the notch of the first fluid reservoir and the notch of the second fluid reservoir, and the second cover side is provided with a sealing protrusion which is defined around the notch of the mixing tank, and the sealing protrusion is inserted into the sealing groove.

8. The test object loading assembly according to claim 7, wherein a clamping groove is formed in a side wall of the sealing groove, and a buckle is arranged on the sealing protrusion and clamped in the clamping groove.

9. The test object loading assembly according to claim 8, wherein the side wall of the sealing groove is provided with at least two locking grooves, the at least two locking grooves are spaced apart from each other, the sealing protrusion is provided with at least two locking hooks, the at least two locking hooks are spaced apart from each other, and the at least two locking hooks are locked in the at least two locking grooves in a one-to-one correspondence manner.

10. The test object loading assembly of claim 1, wherein the mixing tank includes a lead-in region and a test region in communication with the lead-in region, the lead-in region being closer to the notch of the mixing tank than the test region, the lead-in region being funnel-shaped, and the lead-in region having a small-section end and a large-section end opposite the small-section end, the small-section end being closer to the test region than the large-section end.