Suction head containing assembly

Abstract

The embodiment of the utility model provides a suction head containing assembly. The utility model discloses a suction head containing assembly. The suction head containing assembly comprises a mounting main body, a containing box body detachably connected to a consumable area of the mounting main body, and a limiting plate, one containing box body is clamped between every two adjacent limiting plates, at least one of the containing box bodies and the limiting plates is provided with a fool-proof structure, and the multiple containing box bodies are linearly arranged according to a preset direction under the action of the fool-proof structure. Therefore, according to the suction head containing assembly provided by the embodiment of the utility model, the containing box body can be quickly mounted, and the fool-proof function of the suction head containing assembly can be enhanced, so that the containing box body can be quickly taken and placed more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of reagent detection, in particular to a pipette tip accommodating component. Background Art

[0002] With the continuous development of reagent detection technology, the frequency of reagent detection is becoming more and more frequent. In order to store the pipette tips for reagent detection conveniently, it is necessary to accommodate the pipette tips through a accommodating box body.

[0003] However, as the frequency of reagent testing increases, the number of accommodating boxes for accommodating pipette tips also increases, and therefore there is an urgent need to provide a pipette tip accommodating assembly that can be quickly installed and can arrange the accommodating boxes in a preset direction. Utility Model Content

[0004] In order to solve or partially solve the above problems, the utility model discloses a tip accommodating assembly to solve the problem that the tip accommodating assembly in the prior art cannot simultaneously meet the requirements of quick installation and foolproofing of the tip accommodating assembly.

[0005] The utility model discloses a suction head accommodating assembly, which comprises:

[0006] An installation body, a containing box body and a limiting plate detachably connected to the consumables area of ​​the installation body;

[0007] One of the accommodating boxes is clamped between every two adjacent limiting plates, and at least one of the accommodating box and the limiting plates is provided with a fool-proof structure. Under the action of the fool-proof structure, the plurality of accommodating boxes are linearly arranged in a preset direction.

[0008] Optionally, the fool-proof structure includes a limiting notch and a limiting protrusion;

[0009] The limiting notch is arranged on the bottom of the containing box body, the limiting protrusion is arranged on the surface of the limiting plate facing the containing box body, and the limiting protrusion is inserted into the limiting notch.

[0010] Optionally, the orthographic projections of the limiting notches provided on each two adjacent containing box bodies on the first plane do not overlap, and the orthographic projections of the limiting notches provided on each containing box body on the first plane do not overlap, wherein the first plane is parallel to the plane where the limiting plate is located.

[0011] Optionally, the fool-proof structure further includes a fool-proof chamfer;

[0012] The foolproof chamfer is arranged at an edge on one side of the accommodating box body.

[0013] Optionally, the tip accommodating assembly further includes a spring structure;

[0014] The spring sheet structure is clamped between the accommodating box body and the limiting plate, and the spring sheet structure is pressed against the accommodating box body and the limiting plate.

[0015] Optionally, the spring sheet structure includes at least three spring arms, and a first angle and a second angle are formed between the at least three spring arms;

[0016] The first angle is in an opposite direction to the second angle, and the first angle and the second angle are between 80° and 120°.

[0017] Optionally, the spring structure includes an elastic body, an elastic member, a movable member and a pull rod;

[0018] The elastic body has a mounting surface, one end of the elastic member is fixed to the mounting surface, the movable member is connected to the other end of the elastic member, and one end of the pull rod is fixed to the mounting surface;

[0019] The movable part is provided with a fixing groove and a hook, the fixing groove is opposite to the other end of the pull rod, and the fixing groove can enter or leave the fixing groove;

[0020] When the spring structure is clamped between the accommodating box body and the limiting plate, the hook is clamped on the limiting plate, and the limiting plate drives the movable member to move along the first direction, so that the other end of the pull rod enters the fixing groove on the movable member, and the movable member drives the elastic member to extend, so that the elastic member is in an extended state;

[0021] When the spring structure is separated from the containing box body and the limiting plate, the hook is engaged with the limiting plate, and the limiting plate drives the movable part to move along the second direction so that the other end of the pull rod is disengaged from the fixation on the movable part, and the elastic part returns to its initial state to reset the movable part.

[0022] Optionally, the limiting plate is detachably connected to the mounting body.

[0023] Optionally, the fool-proof structure further includes a fool-proof mark;

[0024] The fool-proof mark is arranged on the containing box body, and the fool-proof mark is used to mark the arrangement direction of the plurality of containing box bodies.

[0025] Optionally, the tip holding assembly further includes a sample buffer;

[0026] The sample buffer is arranged on one side of the consumable area, and there is a height difference between the plane where the sample buffer is located and the plane where the consumable area is located;

[0027] The sample buffer is provided with a sample rack support, and the sample rack support is arranged on one side of the plurality of containing box bodies.

[0028] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0029] In the embodiment of the utility model, since the pipette tip accommodating assembly includes a mounting body and a accommodating box body and a limiting plate that are detachably connected to the consumables area of ​​the mounting body, it is convenient to quickly install the accommodating box body and the limiting plate on the mounting body. In addition, since a accommodating box body is clamped between each two adjacent limiting plates, and a fool-proof structure is provided on the accommodating box body and the limiting plate, the fool-proof structure can be used to linearly arrange multiple accommodating boxes in a preset direction, so that the operator can quickly distinguish the arrangement direction of the accommodating box bodies, which is convenient for taking and placing the accommodating box bodies. In summary, the pipette tip accommodating assembly provided in the embodiment of the utility model can not only enable the accommodating box body to be quickly installed, but also enhance the fool-proof function of the pipette tip accommodating assembly, thereby making it more convenient to quickly take and place the accommodating box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of a pipette tip accommodating assembly according to an embodiment of the utility model;

[0032] Figure 2 It is a top view of a suction head receiving assembly according to an embodiment of the utility model;

[0033] Figure 3 It is a schematic diagram of the assembly of a suction head receiving assembly according to an embodiment of the utility model;

[0034] Figure 4 It is a schematic diagram of the assembly of a limit plate and a mounting body in an embodiment of the utility model;

[0035] Figure 5 It is a structural schematic diagram of a sample rack support included in a pipette tip accommodating assembly according to an embodiment of the utility model;

[0036] Figure 6 It is a structural schematic diagram of a receiving box body included in a pipette tip receiving assembly according to an embodiment of the utility model;

[0037] Figure 7It is a structural schematic diagram of a spring structure included in a suction head receiving assembly according to an embodiment of the utility model;

[0038] Figure 8 It is a structural schematic diagram of a limit plate included in a suction head accommodating assembly according to an embodiment of the utility model.

[0039] Description of reference numerals:

[0040] 1-installation body; 2-containment box body; 3-limiting plate; 4-foolproofing structure; 5-spring structure; 6-sample rack bracket; 11-consumable area; 12-sample buffer area; 41-limiting notch; 42-limiting protrusion; 43-foolproofing chamfer; 44-foolproofing mark; 51-spring arm. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the utility model. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0043] Figure 1 This is a schematic diagram of the structure of a suction head receiving assembly according to an embodiment of the utility model. Figure 2 1 is a top view of a suction head receiving assembly according to an embodiment of the utility model. Figure 3 This is a schematic diagram of the assembly of a suction head receiving assembly according to an embodiment of the utility model. Figure 4 : is a schematic diagram of the assembly of a limit plate and a mounting body according to an embodiment of the utility model, such as Figure 1 , Figure 2 ,、 Figure 3 and Figure 4 As shown, the tip receiving assembly includes:

[0044] An installation body 1, a receiving box body 2 and a limiting plate 3 detachably connected to a consumable material area 11 of the installation body 1;

[0045] A receiving box body 2 is clamped between every two adjacent limiting plates 3, and at least one of the receiving box body 2 and the limiting plates 3 is provided with a fool-proof structure 4. Under the action of the fool-proof structure 4, multiple receiving boxes 2 are linearly arranged in a preset direction.

[0046] It can be seen from the above embodiments that in the embodiment of the utility model, since the pipette tip receiving assembly includes a mounting body 1 and a receiving box body 2 and a limiting plate 3 detachably connected to the consumable area 11 of the mounting body 1, it is convenient to quickly install the receiving box body 2 and the limiting plate 3 on the mounting body 1. In addition, since a receiving box body 2 is clamped between each two adjacent limiting plates 3, and at least one of the receiving box body 2 and the limiting plate 3 is provided with a fool-proof structure 4, the fool-proof structure 4 can be used to linearly arrange multiple receiving boxes 2 in a preset direction, so that the operator can quickly distinguish the arrangement direction of the receiving box body 2, which is convenient for taking and placing the receiving box body 2. In summary, the pipette tip receiving assembly provided in the embodiment of the utility model can not only make the receiving box body 2 quickly installed, but also enhance the fool-proof function of the pipette tip receiving assembly, so as to facilitate the quick taking and placing of the receiving box body 2.

[0047] Among them, in the above embodiment, the number of the containing box bodies 2 can be one or more, and the embodiment of the utility model does not limit this. In some embodiments, the number of the containing box bodies 2 is at least two, and at least two containing box bodies 2 are arranged linearly. The shape of the containing box body 2 is a square shell structure, and the top of the containing box body 2 is provided with a plurality of containing holes, which are used to plug in the suction head. The suction head can be any one of the suction head structures such as the filter cartridge type suction head and the pipette suction head, and the embodiment of the utility model does not limit this. In addition, the top of the containing box body 2 is provided with a plurality of containing holes that can be arranged in an array to ensure that the spacing between each two adjacent containing holes is equal.

[0048] The mounting body 1 for detachably connecting the receiving box body 2 and the limiting plate 3 may be a plate-shaped or block-shaped structure, and is used to provide a sufficient mounting surface for the receiving box body 2 and the limiting plate 3. The receiving box body 2 and the limiting plate 3 are mounted on the mounting surface of the mounting body 1, which is usually a rectangular plane, and the size of the mounting surface is determined according to the number of the receiving box bodies 2.

[0049] There is a receiving box body 2 clamped between every two adjacent limiting plates 3, that is, the number of limiting plates 3 should be one more than the number of receiving box bodies 2, and the number of limiting plates 3 is determined according to the number of receiving box bodies 2. For example, taking the number of receiving box bodies 2 as two, the number of limiting plates 3 is three, and the three limiting plates 3 are arranged at intervals, and the receiving box body 2 is clamped between the two limiting plates 3, that is, the receiving shell is limited by every two adjacent limiting plates 3, so that the receiving box body 2 is fixed between the two limiting plates 3. It should be noted that the limiting plates 3 can be fixed to the installation body 1 by means of threaded connection, riveting, etc., so as to facilitate the disassembly and assembly of the limiting plates 3.

[0050] In order to enhance the fool-proofing function of the tip accommodating assembly, in the embodiment of the utility model, at least one of the accommodating box body 2 and the limiting plate 3 is provided with a fool-proofing structure 4, and the fool-proofing structure 4 can be provided on the accommodating box body 2, or on the limiting plate 3, or both the accommodating box body 2 and the limiting plate 3 are provided with the fool-proofing structure 4. The type and number of the fool-proofing structures 4 are determined according to the fool-proofing requirements of the tip accommodating assembly, and the embodiment of the utility model does not limit this.

[0051] Next, the specific types of the fool-proof structure 4 provided by the embodiment of the utility model and the related installation methods are specifically introduced as follows:

[0052] In some embodiments, Figure 6 and Figure 8 As shown, the fool-proof structure 4 includes a limiting notch 41 and a limiting protrusion 42; the limiting notch 41 is arranged at the bottom of the accommodating box body 2, and the limiting protrusion 42 is arranged on the surface of the limiting plate 3 facing the accommodating box body 2, and the limiting protrusion 42 is inserted into the limiting notch 41.

[0053] It should be noted that the limiting notch 41 can be a slot structure provided at the bottom of the containing box body 2, and the bottom of the containing box body 2 is the surface where the containing box body 2 and the installation body 1 contact. The limiting protrusion 42 is a convex block structure provided on the surface of the limiting plate 3 facing the containing box body 2, and the shape of the limiting protrusion 42 is adapted to the shape of the limiting notch 41. In this way, when the containing box body 2 is clamped to two adjacent limiting plates 3, the limiting protrusion 42 is inserted into the limiting notch 41. When the position of the limiting plate 3 is determined, that is, the position of the limiting protrusion 42 is also determined, that is, when the containing box body 2 is clamped to two adjacent limiting plates 3, in order to enable the limiting protrusion 42 to be clamped in the limiting notch 41, the containing box body 2 needs to be placed in a preset direction, otherwise it cannot be installed, thereby achieving a foolproof effect.

[0054] For the above-mentioned fool-proof structure 4, in some embodiments, the orthographic projections of the limiting notches 41 set on each two adjacent containing box bodies 2 on the first plane do not overlap, and the orthographic projections of the limiting notches 41 set on each containing box body 2 on the first plane do not overlap, wherein the first plane is parallel to the plane where the limiting plate 3 is located.

[0055] In this embodiment, since the orthographic projections of the limiting notches 41 set on each two adjacent containing boxes 2 on the first plane do not overlap, and the orthographic projections of the limiting notches 41 set on each containing box 2 on the first plane do not overlap, the limiting notches 41 set on each two adjacent containing boxes 2 are not located on the same straight line in the direction perpendicular to the plane where the limiting plate 3 is located, and the limiting notches 41 set on each containing box 2 are also not located on the same straight line in the direction perpendicular to the plane where the limiting plate 3 is located, that is, the limiting notches 41 set on each two adjacent containing boxes 2 are staggered in the direction perpendicular to the plane where the limiting plate 3 is located, and the limiting notches 41 set on each containing box 2 are staggered in the direction perpendicular to the plane where the limiting plate 3 is located. In this way, the two staggered limiting notches 41 can be used to allow the operator to quickly distinguish the installation direction of the containing box 2. It should be noted that, through the cooperation of the limiting notch 41 and the limiting protrusion 42, the receiving box body 2 can be limited in a direction perpendicular to the arrangement direction of the receiving box body 2, so as to prevent the limiting notches 41 set on each two adjacent receiving box bodies 2 from being displaced in a direction parallel to the plane where the limiting plate 3 is located. Figure 2 The direction shown in Y.

[0056] Further, such as Figure 6 As shown, the foolproof structure 4 also includes a foolproof chamfer 43; the foolproof chamfer 43 is arranged at the edge of one side of the receiving box body 2. In this way, since the foolproof chamfer 43 is arranged at the edge of one side of the receiving box body 2, the position of the limiting notch 41 can be determined by the foolproof chamfer 43, and the installation direction of the receiving box body 2 can be further quickly identified.

[0057] Optionally, in some embodiments, Figure 4 and Figure 7 As shown, the tip receiving assembly further includes a spring structure 5 ; the spring structure 5 is clamped between the receiving box body 2 and the limiting plate 3 , and the spring structure 5 is pressed against the receiving box body 2 and the limiting plate 3 .

[0058] It should be noted that, in this embodiment, the spring sheet structure 5 is an elastic structure with elastic force. In this way, when the spring sheet structure 5 is clamped between the receiving box body 2 and the limiting plate 3, the spring sheet can be pressed against the receiving box body 2 and the limiting plate 3 respectively, that is, the receiving box body 2 and the limiting plate 3 are both subjected to the elastic force of the spring sheet structure 5, so that there is no assembly gap between the receiving box body 2 and the limiting plate 3. In other words, the spring sheet structure 5 can limit the position of two adjacent receiving boxes 2 in the arrangement direction. Among them, the arrangement direction of two adjacent receiving boxes 2 is as follows: Figure 2 In addition, it should be noted that, through the spring sheet structure 5, when taking out the receiving box body 2, the spring sheet structure 5 can be squeezed to make the space between two adjacent receiving boxes 2 in an unconstrained state, thereby facilitating the easy taking out of the receiving box body 2.

[0059] For the above-mentioned spring sheet structure 5, in a possible implementation method, as Figure 7 As shown, the spring structure 5 includes at least three spring arms 51, and there is a first angle and a second angle between the at least three spring arms 51; wherein the first angle and the second angle are opposite in direction, and the first angle and the second angle are between 80° and 120°.

[0060] It should be noted that in the spring sheet structure 5 provided in this embodiment, the spring sheet structure 5 is a wavy structure, and the spring sheet structure 5 includes at least three spring arms 51, and the extension direction between each two adjacent spring arms 51 is different, so that there is a first angle and a second angle between the at least three spring arms 51, wherein the first angle can be toward the containing box body 2, and the second angle can be toward the limiting plate 3. Since the first angle and the second angle are between 80° and 120°, the angle size of the first angle and the second angle can be changed by pressing the spring sheet structure 5, so that the low pressure of the spring sheet structure 5 on the containing box body 2 and the limiting plate 3 changes, which facilitates the ejection of the spring sheet structure 5, so that the two adjacent containing box bodies 2 are in a non-constrained state, and thus facilitates the easy removal of the containing box body 2. Among them, the first angle is as follows: Figure 7 As shown in the middle angle A, the first angle is Figure 7 As shown in the middle angle B.

[0061] For the above-mentioned spring structure 5, in another possible implementation method, the spring structure 5 includes an elastic body, an elastic member, a movable member and a pull rod; the elastic body has a mounting surface, one end of the elastic member is fixed to the mounting surface, the movable member is connected to the other end of the elastic member, and one end of the pull rod is fixed to the mounting surface; a fixing groove and a hook are provided on the movable member, the fixing groove is opposite to the other end of the pull rod, and the fixing groove can enter or leave the fixing groove; when the spring structure 5 is clamped between the containing box body 2 and the limiting plate 3, the hook is clamped on the limiting plate 3, and the limiting plate 3 drives the movable member to move along the first direction, so that the other end of the pull rod enters the fixing groove on the movable member, and the movable member drives the elastic member to extend, so that the elastic member is in an extended state. In this way, the spring structure 5 can be firmly clamped between the containing box body 2 and the limiting plate 3, so that the containing box body 2 and the limiting plate 3 are always subjected to the force of the spring structure 5.

[0062] When the spring sheet structure 5 is separated from the containing box body 2 and the limiting plate 3, the hook is connected to the limiting plate 3, and the limiting plate 3 drives the movable member to move along the second direction, so that the other end of the pull rod is separated from the fixing on the movable member, and the elastic member returns to the initial state to reset the movable member. In this way, the spring sheet structure 5 can be easily ejected, and then the space between the two adjacent containing boxes 2 is in a non-constrained state, which is convenient for easy removal of the containing box body 2.

[0063] In addition, in some embodiments, the limiting plate 3 is detachably connected to the installation body 1 .

[0064] It should be noted that the limiting plate 3 can be fixed to the installation body 1 by means of threaded connection, riveting, etc., so as to facilitate the disassembly and assembly of the limiting plate 3. At the same time, since the limiting plate 3 is detachably connected to the installation body 1, when assembling the receiving box bodies 2 of different sizes, it is convenient to cover the size between two adjacent limiting plates 3 to adapt to the rapid installation of the receiving box bodies 2 of different sizes.

[0065] In the embodiments of the utility model, in some embodiments, the fool-proof structure 4 further includes a fool-proof mark 44 ; the fool-proof mark 44 is disposed on the receiving box body 2 , and the fool-proof mark 44 is used to mark the arrangement direction of the plurality of receiving box bodies 2 .

[0066] It should be noted that the foolproof mark 44 can be a foolproof arrow, a color mark, a letter mark, etc., which is not limited in the embodiment of the utility model. In this way, the foolproof mark 44 set on the receiving box body 2 helps to further distinguish the installation direction of the receiving box body 2.

[0067] In some embodiments, the tip holding assembly further includes a sample buffer 12; the sample buffer 12 is disposed on one side of the consumable area 11, and there is a height difference between the plane where the sample buffer 12 is located and the plane where the consumable area 11 is located; the sample buffer 12 is provided with a sample rack bracket 6, and the sample rack bracket 6 is disposed on one side of the plurality of holding boxes 2.

[0068] It should be noted that the sample holder is used to store test tubes, pipettes and other structures that contain samples to be tested. Since the buffer zone is set on one side of the consumables zone 11, and there is a height difference between the plane where the sample buffer zone 12 is located and the plane where the consumables zone 11 is located, the sample buffer zone 12 and the consumables zone 11 can be distinguished, so that the operator can quickly perform respective operations in the consumables zone 11 and the sample buffer zone 12.

[0069] It can be seen from the above embodiments that in the embodiment of the utility model, since the pipette tip receiving assembly includes a mounting body 1 and a receiving box body 2 and a limiting plate 3 detachably connected to the consumable area 11 of the mounting body 1, it is convenient to quickly install the receiving box body 2 and the limiting plate 3 on the mounting body 1. In addition, since a receiving box body 2 is clamped between each two adjacent limiting plates 3, and a fool-proof structure 4 is provided on the receiving box body 2 and the limiting plate 3, the fool-proof structure 4 can be used to linearly arrange multiple receiving boxes 2 in a preset direction, so that the operator can quickly distinguish the arrangement direction of the receiving box body 2, which is convenient for taking and placing the receiving box body 2. In summary, the pipette tip receiving assembly provided in the embodiment of the utility model can not only make the receiving box body 2 quickly installed, but also enhance the fool-proof function of the pipette tip receiving assembly, so as to facilitate the quick taking and placing of the receiving box body 2.

[0070] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0071] Although the preferred embodiments of the utility model embodiments have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the utility model embodiments.

[0072] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0073] The above is a detailed introduction to a pipette tip receiving assembly provided by the present invention. Specific examples are used herein to illustrate the principle and implementation method of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A tip receiving assembly, characterized in that: The tip receiving assembly comprises: An installation body, a containing box body and a limiting plate detachably connected to the consumables area of ​​the installation body; One of the accommodating boxes is clamped between every two adjacent limiting plates, and at least one of the accommodating box and the limiting plates is provided with a fool-proof structure. Under the action of the fool-proof structure, the plurality of accommodating boxes are linearly arranged in a preset direction.

2. The tip receiving assembly according to claim 1, wherein: The fool-proof structure includes a limiting notch and a limiting protrusion; The limiting notch is arranged at the bottom of the containing box body, the limiting protrusion is arranged on the surface of the limiting plate facing the containing box body, and the limiting protrusion is inserted into the limiting notch.

3. The tip receiving assembly according to claim 2, characterized in that: The orthographic projections of the limiting notches provided on each two adjacent containing boxes on the first plane do not overlap, and the orthographic projections of the limiting notches provided on each containing box on the first plane do not overlap, wherein the first plane is parallel to the plane where the limiting plate is located.

4. The tip receiving assembly according to claim 2, wherein: The fool-proof structure also includes a fool-proof chamfer; The foolproof chamfer is arranged at an edge on one side of the accommodating box body.

5. The tip receiving assembly according to claim 1, wherein: The tip accommodating assembly further includes a spring structure; The spring sheet structure is clamped between the accommodating box body and the limiting plate, and the spring sheet structure is pressed against the accommodating box body and the limiting plate.

6. The tip receiving assembly according to claim 5, characterized in that: The spring sheet structure comprises at least three spring arms, and a first angle and a second angle are formed between the at least three spring arms; The first angle is in an opposite direction to the second angle, and the first angle and the second angle are between 80° and 120°.

7. The tip receiving assembly according to claim 5, wherein: The spring sheet structure comprises an elastic body, an elastic member, a movable member and a pull rod; The elastic body has a mounting surface, one end of the elastic member is fixed to the mounting surface, the movable member is connected to the other end of the elastic member, and one end of the pull rod is fixed to the mounting surface; The movable part is provided with a fixing groove and a hook, the fixing groove is opposite to the other end of the pull rod, and the fixing groove can enter or leave the fixing groove; When the spring structure is clamped between the accommodating box body and the limiting plate, the hook is clamped on the limiting plate, and the limiting plate drives the movable member to move along the first direction, so that the other end of the pull rod enters the fixing groove on the movable member, and the movable member drives the elastic member to extend, so that the elastic member is in an extended state; When the spring structure is separated from the containing box body and the limiting plate, the hook is engaged with the limiting plate, and the limiting plate drives the movable part to move along the second direction so that the other end of the pull rod is disengaged from the fixation on the movable part, and the elastic part returns to its initial state to reset the movable part.

8. The tip receiving assembly according to claim 1, wherein: The limiting plate is detachably connected to the installation body.

9. The tip receiving assembly according to claim 1, wherein: The fool-proof structure also includes a fool-proof mark; The fool-proof mark is arranged on the containing box body, and the fool-proof mark is used to mark the arrangement direction of the plurality of containing box bodies.

10. The tip receiving assembly according to claim 1, wherein: The tip receiving assembly also includes a sample buffer; The sample buffer is arranged on one side of the consumable area, and there is a height difference between the plane where the sample buffer is located and the plane where the consumable area is located; The sample buffer is provided with a sample rack support, and the sample rack support is arranged on one side of the plurality of containing box bodies.

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