A device for sorting reaction tubes in a tube library, a tube library, and a chemiluminescence immunoassay analyzer

Abstract

The present application relates to a tube library reaction tube sorting device, a tube library and a chemiluminescence immunoassay instrument thereof, wherein the tube library reaction tube sorting device comprises: a cup squeezing unit; the cup squeezing unit comprises a storage bin and a branch bin arranged in sequence from top to bottom; a rotatable concave-convex squeezing disk is provided in the branch bin, the concave-convex squeezing disk is in the shape of a truncated cone, and a plurality of protrusions are arranged at intervals on the circumference of the outer surface of the truncated cone of the concave-convex squeezing disk, and the protrusions are arranged in the direction of the busbar of the truncated cone; the protrusions are arranged to gradually widen from the top to the bottom of the truncated cone in the direction of the busbar; or, the protrusions are arranged with equal width in the circumferential direction along the busbar; the bin wall of the branch bin is arranged in the circumferential direction above the concave-convex squeezing disk to form a cavity for enclosing the reaction tube located on the concave-convex squeezing disk; a reversible cup dropping valve is provided on the bin wall, and when the concave-convex squeezing disk rotates, the reaction tube dropped from the storage bin is pushed against by the protrusion and escapes from the cup dropping valve. The sorting device proposed in the present application can control the frequency of reaction tubes entering the centrifugal device.

Description

Technical Field

[0001] The present application relates to the technical field of medical detection equipment, and in particular to a tube library reaction tube arranging device, a tube library and a chemiluminescence immunoassay instrument thereof. Background Art

[0002] The chemiluminescence immunoassay instrument is a medical testing instrument that performs immunoassay on the human body by detecting the patient's serum. It mainly includes a tube warehouse, an incubation tray, a reagent loading module, a sample loading module, etc. The tube warehouse is a module for storing, sorting and transporting reaction tubes in the chemiluminescence immunoassay instrument. During the operation of the chemiluminescence immunoassay instrument, the staff first needs to put the reaction tubes into the tube warehouse, and then the tube warehouse will sort them out and then transport them to the predetermined position. In the prior art, the tube warehouse sorting module is generally implemented by a centrifugal device, but due to the large number of reaction tubes, if all the reaction tubes to be used are placed in the centrifugal device, the operation of the centrifugal device may be problematic, for example, the centrifugal disk of the centrifugal device cannot throw out the reaction tubes, the reaction tubes are stuck in the transport pipeline, etc. Therefore, before the reaction tubes enter the centrifugal device, a reaction tube storage and pre-sorting device needs to be set up to control the reaction tubes to enter the centrifugal device in an orderly manner. Summary of the Invention

[0003] To address the technical problems existing in the prior art, the present application proposes a tube library reaction tube organization device, a tube library, and a chemiluminescent immunoassay analyzer thereof. By providing a cup-dropping unit in the reaction tube organization device, a large number of reaction tubes can be stored and orderly fed into a centrifuge. In addition, by controlling the rotation speed of the concave-convex squeezing disk, the frequency of reaction tubes entering the centrifuge can be controlled, thereby controlling the cup discharge frequency of the tube library. This allows the reaction tubes output from the tube library to be orderly transported to predetermined locations, thereby enabling the chemiluminescent immunoassay analyzer to operate efficiently.

[0004] The present application proposes a device for organizing reaction tubes in a tube warehouse, comprising: a cup-dropping unit; the cup-dropping unit comprises a storage bin and a branch bin arranged in sequence from top to bottom; a rotatable concave-convex extrusion disk is provided in the branch bin, and the concave-convex extrusion disk is in the shape of a truncated cone, and a plurality of protrusions are arranged at intervals on the circumference of the outer surface of the truncated cone of the concave-convex extrusion disk, and the protrusions are arranged through in the direction of the busbar of the truncated cone; the protrusions are arranged to gradually widen from the top to the bottom of the truncated cone in the direction of the busbar; or, the protrusions are arranged with equal width in the circumferential direction along the busbar; the bin wall of the branch bin is arranged in the circumferential direction above the concave-convex extrusion disk to form a cavity for enclosing the reaction tube located on the concave-convex extrusion disk; a flip cup-dropping valve is provided on the bin wall, and when the concave-convex extrusion disk rotates, the reaction tube falling from the storage bin is pushed against by the protrusion and escapes from the cup-dropping valve.

[0005] Optionally, the number of protrusions arranged in the circumferential direction is 3-6.

[0006] Optionally, the preferred number of protrusions arranged in the circumferential direction is 5.

[0007] Optionally, the angle between the generatrix and the bottom edge in the axial cross section of the concave-convex extrusion disk is in the range of 30°-60°.

[0008] Optionally, a cup dropping channel is connected to the wall of the branch bin, and the inlet of the cup dropping channel is set corresponding to the direction in which the cup dropping valve is flipped open, and the outlet of the cup dropping channel is connected to the centrifugal cup outlet unit, wherein the centrifugal cup outlet unit includes a centrifugal bin, a centrifugal turntable and a cup outlet pipe, wherein the centrifugal turntable is embedded in the centrifugal bin and swings in a circumferential direction; the centrifugal bin is used to enclose the reaction tube; the cup outlet pipe is set along the tangent direction of the centrifugal turntable, the centrifugal turntable swings, and the reaction tube is discharged from the cup outlet pipe under the action of centrifugal force.

[0009] Optionally, a plurality of ridges for preventing the reaction tubes from piling up are provided at equal angular intervals on the edge of the centrifugal turntable in the circumferential direction, and the ridges have a preset length in the radial direction.

[0010] Optionally, the centrifugal turntable is in a cone shape.

[0011] Optionally, the swinging in the circumferential direction includes swinging in a first swinging direction and a second swinging direction, the swing angle along the first swinging direction is greater than the swing angle along the second swinging direction, and the opening of the cup outlet pipe is arranged along the tangential direction of the centrifugal turntable, and the tangential direction is consistent with the first swinging direction.

[0012] Optionally, the storage bin is funnel-shaped, and a smaller opening of the storage bin is connected to the branch bin, and the storage bin is used to store the reaction tubes.

[0013] Optionally, the present application also proposes a tube library, including a reaction tube conveying device, and also including a tube library reaction tube sorting device as described in any of the above items, wherein the opening of the cup outlet pipe of the tube library reaction tube sorting device is connected to the reaction tube conveying track entrance of the reaction tube conveying device.

[0014] The present application also proposes a chemiluminescence immunoassay analyzer, which includes at least a cup-organizing tray and a tube library as described above, wherein the reaction tube conveying track outlet of the reaction tube conveying device is connected to the entrance of the reaction tube fixing position of the cup-organizing tray.

[0015] By incorporating a reaction cup drop unit into the reaction tube arrangement device, the frequency of reaction tubes entering the centrifuge can be stored and controlled, thereby enabling control of the frequency of reaction tubes being output from the tube library. Furthermore, the surfaces of the components in the tube library reaction tube arrangement device of the present application that come into contact with the reaction tubes are smooth and clean, preventing wear and contamination of the reaction tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Below, the preferred embodiments of the present application will be further described in detail with reference to the accompanying drawings, wherein:

[0017] Figure 1 This is a schematic structural diagram of a cup-dropping unit in a tube library reaction tube arranging device according to an embodiment of the present application;

[0018] Figure 2 yes Figure 1 Schematic diagram of partial assembly position relationship;

[0019] Figure 3 yes Figure 2 Schematic diagram of the C-direction structure of the middle concave-convex extrusion disk;

[0020] Figure 4 yes Figure 3 Cross-sectional view along the AA plane;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of a centrifugal cup discharge unit of a tube storage arrangement device provided in an embodiment of the present application;

[0022] Figure 6 is a schematic structural diagram of a centrifugal turntable in a reaction tube arranging device provided in an embodiment of the present application; and

[0023] Figure 7 This is a tube library provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0025] In the detailed description that follows, reference may be made to the various drawings that form part of this application and illustrate specific embodiments of the present application. In the drawings, similar reference numerals describe substantially similar components in different figures. Each specific embodiment of the present application is described below in sufficient detail to enable a person of ordinary skill in the art to implement the technical solutions of the present application. It should be understood that other embodiments may be utilized or that structural, logical, or electrical changes may be made to the embodiments of the present application.

[0026] Figure 1 This is a schematic structural diagram of a cup-dropping unit in a tube library reaction tube arranging device provided according to an embodiment of the present application. Figure 2 yes Figure 1 Partial exploded view of . Figure 1 and Figure 2 As shown, the tube storage reaction tube sorting device includes a cup squeezing unit 100, which includes a storage bin 101 and a branch bin 102 arranged in sequence from top to bottom. The storage bin 101 can be used to store reaction tubes 120. In some embodiments, optionally, a channel for the reaction tubes to enter the branch bin 102 is provided in the storage bin 101, so that the reaction tubes enter the branch bin 102 in an orderly manner. In addition, in some embodiments, the storage bin 101 and the branch bin 102 are integrated. The storage bin 101 can also be provided with a certain slope along the direction from the bin opening to the branch bin 102, so that the reaction tubes that fall on the bin wall of the storage bin 101 slowly fall into the branch bin 102.

[0027] A rotatable concave-convex extrusion disk 103 is provided in the distribution chamber 102. The concave-convex extrusion disk 103 is in the shape of a truncated cone. A plurality of protrusions 104 are arranged at intervals on the circumference of the outer surface of the truncated cone of the concave-convex extrusion disk 103. The protrusions 104 are arranged to penetrate in the direction of the busbar of the truncated cone. In some embodiments, optionally, the protrusions 104 are arranged with equal width along the busbar in the circumferential direction, so that the falling speed and number of the reaction tubes can be accurately controlled by controlling the swing frequency and angle of the concave-convex extrusion disk. The protrusions 104 and the depressions 107 of the concave-convex extrusion disk can be arranged at intervals, and the surface area of the protrusions 104 is smaller than the surface area of the depressions 107. When the protrusions 104 of the concave-convex extrusion disk 103 rotate to the side of the cup drop valve, the protrusions 104 can lift the reaction tube 120, and the reaction tube 120 then lifts the cup drop valve 105 and falls from the cup drop valve 105. The walls of the distribution chamber 102 extend circumferentially above the concave-convex extrusion disk 103, forming a cavity for enclosing the reaction tubes positioned on the concave-convex extrusion disk 103. A reversible cup drop valve 105 is provided on the chamber wall. When the concave-convex extrusion disk 103 rotates, the reaction tubes dropped from the storage chamber 101 are pushed against the protrusions 104 and escape through the cup drop valve 105.

[0028] In some embodiments, the cup drop valve 105 can optionally be closed by gravity, or a spring or magnet can be provided to enable the cup drop valve to close after the cup passes through the reaction tube. When the reaction tube is on the concave structure of the concave-convex squeeze plate, the reaction tube is not subjected to the force that could open the cup drop valve, so the cup drop valve closes and the reaction tube stops falling through the cup drop valve.

[0029] By incorporating a reaction cup drop unit into the reaction tube arrangement device, the frequency of reaction tubes entering the centrifuge can be stored and controlled, thereby enabling control of the frequency of reaction tubes being output from the tube library. Furthermore, the surfaces of the components in the tube library reaction tube arrangement device of the present application that come into contact with the reaction tubes are smooth and clean, preventing wear and contamination of the reaction tubes.

[0030] In some embodiments, the concave-convex extrusion disk 103 can optionally rotate in a clockwise direction or in a counterclockwise direction. Specifically, the concave-convex extrusion disk 103 can rotate 72° clockwise and 36° counterclockwise to perform a reciprocating swing, and the rotation speed can be 1 revolution per second. In addition, by controlling the swing frequency and swing angle of the concave-convex extrusion disk 103, the speed and number of reaction tubes falling can be controlled. The concave-convex extrusion disk rotates under the action of the motor 110 and the synchronous belt 112, and the rotation speed and direction of the concave-convex extrusion disk can be controlled by controlling the rotation speed and direction of the motor 110.

[0031] Figure 3 This is a top view of a concave-convex squeeze disk in a tube library reaction tube sorting device provided according to an embodiment of the present application. In some embodiments, optionally, the number of protrusions 104 of the concave-convex squeeze disk set in the circumferential direction is 3-6. Among them, the number of protrusions set on the concave-convex squeeze disk can affect the frequency of the reaction tube being ejected from the cup drop valve. When other conditions remain unchanged, the more protrusions there are, the higher the frequency of the reaction tube being squeezed off. Figure 3 In the illustrated embodiment, the preferred number of protrusions 104 arranged in the circumferential direction of the concave-convex extrusion disk is five.

[0032] Continue to see Figure 3 ,like Figure 3 As shown, the protrusion 104 is gradually widened from the top to the bottom of the cone in the generatrix direction. In this way, the protrusion at the bottom is the widest, which can have a larger contact area with the reaction tube at the bottom, making it more likely that the reaction tube will be lifted.

[0033] Figure 4 yes Figure 3 The cross-sectional view along the AA plane. Figure 4 As shown, the angle ∠B between the generatrix and the bottom edge in the axial cross-section of the concave-convex extrusion disk ranges from 30° to 60°. In some embodiments, the angle ∠B is 55.5°. By setting a suitable range of angles ∠B, the concave-convex extrusion disk can lift the cup drop valve under the pressure of the protrusion 102 and can also drop from the cup drop valve.

[0034] Figure 5 This is a schematic diagram of the three-dimensional structure of a centrifugal cup-discharging unit of a tube storage arrangement device provided in accordance with an embodiment of the present application. Figure 1 and Figure 5As shown, the wall of the sub-chassis 102 is connected to a cup-dropping channel 108. The inlet of the cup-dropping channel 108 corresponds to the direction in which the cup-dropping valve 106 is flipped open. The outlet of the cup-dropping channel 108 is connected to the centrifugal cup-discharging unit 500. The centrifugal cup-discharging unit 500 includes a centrifugal chamber 501, a centrifugal turntable 502, and a cup-discharging pipe 503. The centrifugal turntable 502 is embedded in the centrifugal chamber 501 and swings in a circumferential direction. The centrifugal chamber 501 is used to enclose the reaction tube. The cup-discharging pipe 503 is arranged tangentially to the centrifugal turntable 502. The centrifugal turntable 502 swings, and the reaction tube is discharged from the cup-discharging pipe 503 under the action of centrifugal force.

[0035] The reaction tubes dropped from the cup-dropping unit 100 land on the centrifugal turntable 502, which can oscillate clockwise and counterclockwise. Centrifugal force propels the reaction tubes to the outermost edge of the centrifugal chamber. Furthermore, a cup-discharging conduit 503 can be arranged tangentially to the centrifugal turntable, with its opening located within the centrifugal chamber. Centrifugal force forces some reaction tubes into the conduit opening and are subsequently discharged from the centrifugal cup-discharging unit 500.

[0036] The cup-dropping unit 100 can be arranged above the centrifugal cup-dropping unit 500. The mechanism on the cup-dropping unit is arranged above the planar structure 109. The planar structure 109 is supported by a plurality of columns below, so that the planar structure 109 can be arranged above the centrifugal chamber. The centrifugal cup-dropping unit 500 and the cup-dropping unit 100 are connected through a cup-dropping channel. The reaction tube squeezed out by the cup-dropping unit enters the centrifugal turntable in the centrifugal chamber through the cup-dropping channel and is thrown out to the cup-discharging pipe 503 under the action of the centrifugal turntable. The cup-dropping unit also includes a bracket 507. The centrifugal turntable, centrifugal chamber and cup-discharging pipe in the centrifugal cup-dropping unit are all arranged above the bracket 507. In addition, the planar structure 109 is connected to the bracket 507 through columns, so that the cup-dropping unit located on the planar structure 109 is arranged above the centrifugal cup-dropping unit.

[0037] By setting up a centrifugal cup discharging unit, the reaction tube can enter the next work process in a certain posture, which facilitates the orderly transportation of the reaction tube.

[0038] Figure 6 This is a schematic diagram of the structure of a centrifugal turntable in a reaction tube arrangement device according to an embodiment of the present application. Figure 6As shown, the centrifugal turntable is conical in shape, which facilitates the collection of reaction tubes at the bottom of the centrifugal turntable and their subsequent discharge along the cup discharge pipe opening. In some embodiments, the edge of the centrifugal turntable 502 is optionally provided with a plurality of ridges 504 at equal angular intervals in the circumferential direction to prevent the accumulation of reaction tubes. The ridges have a predetermined radial length. The ridges on the centrifugal turntable 502 can circumferentially comb through the accumulated reaction tubes as the centrifugal turntable 502 rotates, thereby preventing the accumulation of reaction tubes and making cup discharge difficult. In addition, the number of ridges is preferably six, evenly distributed around the circumferential edge of the centrifugal turntable.

[0039] In some embodiments, the centrifugal turntable 502 optionally oscillates circumferentially, including oscillating in a first and second oscillating directions, with the oscillation angle in the first direction being greater than the oscillation angle in the second direction. The opening of the cup discharge duct is arranged tangentially to the centrifugal turntable, with the tangent direction being aligned with the first oscillation direction. When the first oscillation direction is clockwise, the second oscillation direction is counterclockwise; when the first oscillation direction is counterclockwise, the second oscillation direction is clockwise. If the oscillation angle of the centrifugal turntable in the clockwise direction is greater than the oscillation angle in the counterclockwise direction, the opening of the cup discharge duct extends into the centrifugal chamber along the direction of the centrifugal turntable's clockwise rotation. If the oscillation angle of the centrifugal turntable in the counterclockwise direction is greater than the oscillation angle in the clockwise direction, the opening of the cup discharge duct extends into the centrifugal chamber along the direction of the centrifugal turntable's counterclockwise rotation. This allows the reaction tubes to be quickly ejected from the centrifugal unit. Specifically, the centrifugal turntable can rotate 72° clockwise and 60° counterclockwise, with each rotation lasting 1 second. At this time, the cup outlet pipe cuts into the centrifugal chamber in a clockwise direction. Optionally, the power of the centrifugal motor 506 can be transmitted to the centrifugal turntable 502 by using a synchronous belt 505, so that the centrifugal turntable 502 can rotate clockwise or counterclockwise at a certain speed.

[0040] Continue to see Figure 1 ,like Figure 1 As shown, the storage bin 101 is funnel-shaped, and the smaller opening of the storage bin 101 is connected to the branch bin 102, which is used to store reaction tubes. The funnel-shaped storage bin can store a certain amount of reaction tubes and allow the reaction tubes to slowly enter the branch bin 102.

[0041] Figure 7 This is a tube library provided according to an embodiment of the present application. Figure 7 As shown, the tube warehouse includes a reaction tube conveying device 701 and also includes any of the aforementioned tube warehouse reaction tube sorting devices. The opening of the cup outlet pipe 503 of the tube warehouse reaction tube sorting device is connected to the reaction tube conveying track entrance of the reaction tube conveying device 701.

[0042] By arranging the tube library reaction tube arranging device proposed in this application in the tube library 700, the tube library 700 can transport the reaction tubes to the predetermined positions in an orderly manner.

[0043] The present application also proposes a chemiluminescent immunoassay analyzer, which at least includes a cup-organizing tray. The chemiluminescent immunoassay analyzer also includes the tube library 700 as described above, and the reaction tube conveying track outlet of the reaction tube conveying device 701 is connected to the entrance of the reaction tube fixing position of the cup-organizing tray.

[0044] The chemiluminescence immunoassay analyzer proposed in this application can complete the detection task quickly and efficiently.

[0045] In summary, by incorporating a reaction cup dropper into the reaction tube arrangement device, the embodiments of the present application can store and control the frequency of reaction tubes entering the centrifuge, thereby enabling control of the frequency of reaction tubes being output from the tube library. Furthermore, the surfaces of the components in the reaction tube arrangement device in the tube library of the present application that come into contact with the reaction tubes are smooth and clean, preventing wear and contamination of the reaction tubes.

[0046] The above embodiments are only used to illustrate the present application and are not intended to limit the present application. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the scope of the present application. Therefore, all equivalent technical solutions should also fall within the scope disclosed in the present application.

Claims

1. A tube library reaction tube arranging device, characterized in that: include: Extrusion cup dropping unit; The cup-dropping unit comprises a storage bin and a distribution bin arranged sequentially from top to bottom; A rotatable concave-convex extrusion disk is provided in the branch chamber. The concave-convex extrusion disk is in the shape of a truncated cone. A plurality of protrusions are arranged at intervals on the circumference of the outer surface of the truncated cone of the concave-convex extrusion disk. The protrusions are arranged to penetrate in the generatrix direction of the truncated cone. The protrusions are arranged to be gradually wider from the top to the bottom of the truncated cone in the generatrix direction; or, the protrusions are arranged to have a uniform width in the circumferential direction along the generatrix; The chamber wall of the branch chamber is arranged above the concave-convex extrusion plate in a circumferential direction to form a cavity for enclosing the reaction tube located on the concave-convex extrusion plate; A reversible cup drop valve is provided on the chamber wall. When the concave-convex extrusion disk rotates, the reaction tube dropped from the storage chamber is pushed against by the protrusion and escapes from the cup drop valve. The protrusions and depressions of the concave-convex extrusion disk are arranged at intervals, and the surface area of the protrusions is smaller than that of the depressions. When the protrusions of the concave-convex extrusion disk rotate to the side of the cup drop valve, the protrusions can lift the reaction tube, and the reaction tube then lifts the cup drop valve and falls from the cup drop valve; when the reaction tube is on the concave structure of the concave-convex extrusion disk, the reaction tube is not subjected to the force that can open the cup drop valve, so the cup drop valve is closed and the reaction tube stops falling from the cup drop valve.

2. The tube library reaction tube arrangement device according to claim 1, characterized in that: The number of the protrusions arranged in the circumferential direction is 3-6.

3. The tube library reaction tube arranging device according to claim 2, characterized in that: The number of the protrusions arranged in the circumferential direction is 5.

4. The tube library reaction tube arranging device according to claim 1, characterized in that: The included angle between the generatrix and the bottom edge in the axial cross section of the concave-convex extrusion disk is in the range of 30°-60°.

5. The tube library reaction tube arrangement device according to claim 1, characterized in that: The wall of the sub-bin is connected to a cup-dropping channel, the inlet of the cup-dropping channel is arranged corresponding to the direction in which the cup-dropping valve is turned over and opened, and the outlet of the cup-dropping channel is connected to the centrifugal cup-discharging unit, wherein: The centrifugal cup discharging unit includes a centrifugal chamber, a centrifugal turntable and a cup discharging pipe, wherein: The centrifugal turntable is embedded in the centrifugal chamber and swings along the circumferential direction; The centrifugal chamber is used to enclose the reaction tube; The cup outlet pipe is arranged along the tangent direction of the centrifugal turntable. The centrifugal turntable swings, and the reaction tube is discharged from the cup outlet pipe under the action of centrifugal force.

6. The tube library reaction tube arranging device according to claim 5, characterized in that: The edge of the centrifugal turntable is provided with a plurality of ridges at equal angular intervals in the circumferential direction for preventing the reaction tubes from piling up, and the ridges have a preset length in the radial direction.

7. The tube library reaction tube arranging device according to claim 6, characterized in that: The centrifugal turntable is in a cone shape.

8. The tube library reaction tube arranging device according to claim 5, characterized in that: The swinging in the circumferential direction includes swinging in a first swinging direction and a second swinging direction, the swing angle along the first swinging direction is greater than the swing angle along the second swinging direction, and the opening of the cup outlet pipe is arranged along the tangential direction of the centrifugal turntable, and the tangential direction is consistent with the first swinging direction.

9. The tube library reaction tube arrangement device according to claim 1, characterized in that: The storage bin is funnel-shaped, and the smaller opening of the storage bin is connected to the branch bin. The storage bin is used to store the reaction tubes.

10. A tube warehouse, comprising a reaction tube conveying device, characterized in that: It also includes the tube library reaction tube arranging device according to any one of claims 1 to 9, wherein the opening of the cup outlet pipe of the tube library reaction tube arranging device is connected to the reaction tube conveying track inlet of the reaction tube conveying device.

11. A chemiluminescence immunoassay analyzer comprising at least a rational cup and plate, characterized in that: It also includes the tube warehouse as claimed in claim 10, wherein the reaction tube conveying track outlet of the reaction tube conveying device is connected to the inlet of the reaction tube fixing position of the cup organizing tray.

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