Sample analysis system

Abstract

The present invention discloses a container fixing device, a sample analyzer and a sample analysis system. The container fixing device comprises a base and a receiving seat. The base has a first rotating part. The receiving seat is formed with a receiving space for placing the container. The receiving seat has a second rotating part, and the second rotating part is rotatably connected to the first rotating part. In the container fixing device of the present invention, by arranging the first rotating part and the second rotating part to cooperate, the receiving seat and the container can rotate relative to the base to perform buffering, avoid liquid splashing caused by direct rigid collision of the container, and improve the reliability of container transportation.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a container accommodating device, a sample analyzer and a sample analysis system. Background Art

[0002] At present, the sample analysis system can perform immunological examinations and biochemical analyses on body fluids such as blood, urine, pleural effusion, and cerebrospinal fluid, such as the examination of clinical items such as myocardial enzyme spectrum, blood sugar, blood lipids, liver function, kidney function, and immunoglobulin. The collected blood sample is usually placed in a sample container. After the sample container is placed in the sample analysis system, the container fixing device transfers the sample container to each analyzer for the corresponding type of clinical item inspection, such as the inspection of biochemical items on a biochemical analyzer and the inspection of luminescent items on a chemiluminescent analyzer.

[0003] In the prior art, a reaction cup fixing device may also be provided inside the analysis system. When the sample container is transferred to the analyzer, the analyzer transfers the sample to the reaction cup placed on the reaction cup carrier, and then drives the reaction cup carrier to the detection device for subsequent inspection steps, that is, transfers the sample in the reaction cup to the detection device for subsequent inspection steps.

[0004] However, in the prior art, since the carrier and container fixture equipped with the reaction cup move at a high speed on the track, when the reaction cup is stopped to cooperate with the gripper set in the detection device and other modules to complete the grasping and placing of the reaction cup or when the sample in the sample container is transferred by the sample transfer module on the analyzer, the speed of the carrier and the container fixture decreases rapidly, resulting in the risk of splashing the sample in the reaction cup and the sample container. Summary of the invention

[0005] The main purpose of the present invention is to provide a container fixing device and a sample analysis system to solve the problem that the speed of the carrier and the container fixing device drops rapidly, causing the sample in the reaction cup and the sample container to splash.

[0006] To achieve the above-mentioned object, the container fixing device proposed in the present invention comprises a base and a receiving seat, wherein the base has a first rotating part;

[0007] The accommodating seat is formed with an accommodating space, the accommodating space is used to place the container, and the accommodating seat has a second rotating part, and the second rotating part is rotatably connected to the first rotating part.

[0008] Optionally, the first rotating part includes two connecting arms, which are respectively located on both sides of the base, and each connecting arm is provided with a rotating hole; the second rotating part includes two rotating shafts, one rotating shaft is arranged corresponding to one rotating hole, and the rotating shaft is rotatably arranged in the corresponding rotating hole.

[0009] Optionally, the height from the geometric center of the rotating hole to the bottom surface of the base is defined as H1, and the height from the total center of gravity of the accommodating seat, the container and the liquid in the container to the bottom surface of the base is defined as H2, wherein H1>H2.

[0010] Optionally, the base forms a limited cavity, and the cavity wall of the limited cavity is used to limit the rotation range of the accommodating seat in the limited cavity.

[0011] Optionally, one end of the bottom of the base is chamfered.

[0012] Optionally, the accommodating space is arranged to gradually expand in a direction away from the base.

[0013] Optionally, a connecting boss is formed at one end of the base, and a connecting groove is formed at the other end of the base, and the connecting groove matches the shape of the connecting boss.

[0014] In addition, the present invention further provides a sample analyzer, which includes a track and the container fixing device as described above, and the base can move relative to the track along the extension direction of the track.

[0015] In addition, the present invention further provides a sample analysis system, which includes a track and the container fixing device as described above, and the base can move relative to the track along the extension direction of the track.

[0016] Optionally, a conveyor belt is provided on the track, the base is placed on the conveyor belt, and the conveyor belt drives the base to move along the extension direction of the track; the base includes a stop portion; the sample analysis system also includes a limiting structure, the limiting structure can move along a second direction relative to the track, the second direction is perpendicular to the extension direction of the track, the limiting structure has a stop surface, and the limiting structure moves along the second direction so that the stop surface stops or disengages from the stop portion.

[0017] Optionally, the accommodating seat forms a limiting portion, and the limiting structure has two limiting arms, wherein the stop surface is formed on one of the limiting arms, and a limiting groove is formed between the two limiting arms, and the limiting portion is used to be inserted into the limiting groove. A lifting inclined surface is formed on the limiting arm, and the limiting portion moves along the lifting inclined surface to make the base detach from the conveying belt or contact the conveying belt.

[0018] In the technical solution of the present invention, the base is slidably connected to the track of the sample analysis system, the base can move relative to the track along the extension direction of the track, and the first rotating part is arranged on the base. A receiving space is formed in the middle of the receiving seat, the receiving space extends in the up-down direction, and a container is placed in the receiving space, and the container can be used to place the liquid to be used. The receiving seat is provided with a second rotating part, and the second rotating part is rotatably connected to the first rotating part, so that the receiving seat and the reaction cup can rotate relative to the base, so as to achieve buffering of the liquid loaded in the container 30 and avoid splashing.

[0019] When the base is stopped by the limiting structure of the sample analysis system, the speed of the container fixing device decreases, the second rotating part rotates relative to the first rotating part, the accommodating seat and the reaction cup can rotate relative to the base, thereby extending the stop time, avoiding splashing caused by direct rigid collision of the reaction cup, and ensuring reliable transportation of the reaction cup.

[0020] In the container fixing device of the present invention, the first rotating part and the second rotating part are arranged to cooperate so that the accommodating seat and the reaction cup can rotate relative to the base to provide buffering, thereby avoiding liquid splashing caused by direct rigid collision of the reaction cup and improving the reliability of the reaction cup transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention 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 only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 This is a schematic structural diagram of a container fixing device according to an embodiment of the present invention;

[0023] Figure 2 This is an exploded schematic diagram of a container fixing device according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic structural diagram of a base at one angle according to an embodiment of the present invention;

[0025] Figure 4 It is a structural schematic diagram of another angle of the base of one embodiment of the present invention;

[0026] Figure 5 It is a cross-sectional schematic diagram of a container fixing device according to an embodiment of the present invention;

[0027] Figure 6 It is a structural schematic diagram of a sample analysis system according to an embodiment of the present invention;

[0028] Figure 7This is a schematic diagram of the connection between a container fixing device and a limiting structure at an angle according to an embodiment of the present invention;

[0029] Figure 8 A schematic diagram of the connection between the container fixing device and the limiting structure at another angle according to an embodiment of the present invention;

[0030] Fig. 9 This is a schematic structural diagram of a limiting structure according to an embodiment of the present invention;

[0031] Fig.10 The figure is a schematic diagram of the connection structure of two adjacent container fixing devices according to an embodiment of the present invention.

[0032] Description of Figure Numbers:

[0033] Label name Label name 100 Container fixing device 221 Shaft 10 Base 23 Limiting part 11 First rotating part 30 container 111 Connecting arm 40 Identification card 112 Rotating hole 200 Sample analysis system 12 Limit cavity 201 track 13 Chamfer 202 Limiting structure 14 Stopper 203 Stop surface 15 Connection boss 204 Limiting arm 16 Connection groove 205 Limit slot 20 Storage seat 206 Lifting slope 21 Accommodation space 207 Guide surface 22 Second rotating part

[0034] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] In the present invention, the descriptions of directions such as "up", "down", "front", "back", "left", and "right" are as follows: Figure 1 The directions shown are for reference only and are used to explain the Figure 1 The relative position relationship between the components in the shown posture. If the specific posture changes, the directional indication will also change accordingly.

[0041] The invention provides a container fixing device and a sample analysis system.

[0042] In one embodiment, if Figures 1 to 5 As shown, the container fixing device 100 includes a base 10 and a receiving seat 20, the base 10 has a first rotating portion 11; the receiving seat 20 is formed with a receiving space 21, the receiving space 21 is used to place the container 30, and the receiving seat 20 has a second rotating portion 22, and the second rotating portion 22 is rotatably connected to the first rotating portion 11. It can be understood that the container 30 can be a reaction cup, a sample container, etc.; the container 30 can contain samples, reagents, and a mixture of sample and reagents, and the present invention does not limit this.

[0043] The base 10 is slidably connected to the track 201 of the sample analysis system 200. The base 10 can move relative to the track 201 along the extension direction of the track. The first rotating part 11 is arranged on the base 10. A receiving space 21 is formed in the middle of the receiving seat 20. The receiving space 21 extends in the up-down direction. The container 30 is placed in the receiving space 21. The receiving seat 20 is provided with a second rotating part 22. The second rotating part 22 is rotatably connected to the first rotating part 11, so that the receiving seat 20 and the container 30 can rotate relative to the base 10, so as to buffer the liquid loaded in the container 30 and avoid splashing.

[0044] When the base 10 is stopped by the limiting structure 202 of the sample analysis system 200, the speed of the container fixing device 100 decreases, the second rotating part 22 rotates relative to the first rotating part 11, and the accommodating seat 20 and the container 30 can rotate relative to the base 10, thereby extending the stop time, avoiding liquid splashing caused by a direct rigid collision of the container 30, and ensuring the reliable transportation of the container 30.

[0045] In the container fixing device 100 of the present invention, by providing the first rotating part 11 and the second rotating part 22 to cooperate, the receiving seat 20 and the container 30 can rotate relative to the base 10 to provide buffering, thereby avoiding liquid splashing caused by direct rigid collision of the container 30 and improving the reliability of the container 30 transportation.

[0046] In one embodiment, please refer to Figure 2 and Figure 3 The first rotating part 11 includes two connecting arms 111, which are respectively located on both sides of the base 10, and each connecting arm 111 is provided with a rotating hole 112; the second rotating part 22 includes two rotating shafts 221, one rotating shaft 221 is correspondingly arranged with a rotating hole 112, and the rotating shaft 221 is rotatably arranged on the corresponding rotating hole 112.

[0047] The connecting arm 111 extends in the up-down direction, and the two connecting arms 111 are arranged on the front and rear sides of the base 10, and a rotating hole 112 is opened on the top of each connecting arm 111. The rotating shaft 221 extends in the front-to-back direction, and the two rotating shafts 221 are arranged on the front and rear sides of the accommodating seat 20. One rotating shaft 221 is arranged corresponding to one rotating hole 112, and the rotating shaft 221 is rotatably arranged in the corresponding rotating hole 112. By setting the rotating shaft 221 to cooperate with the rotating hole 112, the accommodating seat 20 can be stably rotated relative to the base 10 to perform buffering. It can be understood that in one embodiment, the rotating holes 112 can all be through holes, and the rotating shaft 221 can be rotatably arranged to pass through the corresponding rotating holes 112. During installation, the rotating shaft 221 can directly pass through one of the through holes, and then the rotating shaft 221 on the other side is installed, which is convenient for installation. In one embodiment, the rotating holes 112 may also be blind holes, and the rotating shaft 221 may be rotatably arranged in the blind holes. During installation, the deformation ability of the connecting arm 111 may be utilized to install the rotating shaft 221 in the blind holes. The advantage of such an arrangement is that the receiving seat 20 is Figure 1 It plays a limiting role in the front and rear directions; in one embodiment, one rotating hole 112 can be set as a blind hole, and the other rotating hole 112 can be set as a through hole. In this way, during installation, the rotating shaft 221 can first pass through the through hole, and then the other rotating shaft 221 can be installed in the blind hole. The advantage of this arrangement is that it is easy to install, and it can also play a role in limiting one end of the accommodating seat.

[0048] Specifically, the rotating shaft 221 can be integrally formed on the receiving seat 20, which can save the assembly steps of installing the rotating shaft 221 and the receiving seat 20, reduce the assembly error of the rotating shaft 221 and the receiving seat 20, and make the connection between the two very stable and reliable. In other embodiments, the rotating shaft 221 and the receiving seat 20 are split structures, and the rotating shaft 221 and the receiving seat 20 are detachably connected, which facilitates the replacement of the rotating shaft 221 after wear, making the use of the rotating shaft 221 more convenient and flexible.

[0049] In other embodiments, a rotating shaft 221 may be disposed on the connecting arm 111 , and a rotating hole 112 may be opened on the second rotating portion 22 .

[0050] In one embodiment, please refer to Figure 1 , define the height of the geometric center of the rotating hole 112 from the bottom surface of the base 10 as H1, and define the height of the total center of gravity of the accommodating seat 20, the container 30 and the liquid in the container 30 from the bottom surface of the base 10 as H2, wherein H1>H2.

[0051] H1>H2, that is, the height of the geometric center of the rotating hole 112 from the bottom surface of the base 10 is higher than the height of the total center of gravity of the accommodating seat 20, the container 30 and the liquid in the container 30 from the bottom surface of the base 10, so as to avoid the accommodating seat 20 being in a deflected state for a long time during normal operation, thereby affecting the buffering effect. When the height of the total center of gravity of the accommodating seat 20, the container 30 and the liquid in the container 30 is lower than the height of the geometric center of the rotating hole 112 from the bottom surface of the base 10, the kinetic energy of the container 30 is converted into gravitational potential energy during the rotation process, so that the relative movement speed of the container 30 is reduced, further reducing the risk of splashing.

[0052] In one embodiment, after the receiving seat 20 is installed on the base 10, the axis of the rotating shaft 221 is parallel to the horizontal plane, and is not parallel to the movement direction of the container 30 fixture. That is, the axis of the rotating shaft and the movement direction of the container fixture are not in the same plane. It can be understood that if the axis of the rotating shaft and the movement direction of the container fixture are in the same plane, when the base 10 is stopped by the limiting structure 202 of the sample analysis system 200, the receiving seat and the base cannot achieve a buffering effect. Preferably, the angle formed by the axis of the rotating shaft and the forward direction of the container fixture is greater than or equal to 40° and less than or equal to 90°, for example, the angle can be 40°, 45°, 50°, 60°, 65°, 70°, 75°, 80°, 85°, 90°.

[0053] In one embodiment, please refer to Figure 2 and Figure 3 The base 10 forms a limited cavity 12 , and the cavity wall of the limited cavity 12 is used to limit the rotation range of the accommodating seat 20 .

[0054] A limited cavity 12 is formed in the middle of the base 10, and the limited cavity 12 extends in the up-down direction. The cavity wall of the limited cavity 12 is used to limit the rotation range of the accommodating seat 20 in the limited cavity. The accommodating seat 20 rotates within the range of the limited cavity 12 to avoid splashing caused by excessive rotation range of the accommodating seat 20 and the container 30. By setting the limited cavity 12 to limit the rotation range of the accommodating seat 20, the rotation process of the container 30 is more stable and reliable, and the buffering effect is improved.

[0055] Specifically, a buffer pad is provided on the side wall of the limiting cavity 12 or the side of the accommodating seat, and the buffer pad is used to buffer the impact between the accommodating seat 20 and the cavity wall of the limiting cavity 12, thereby improving the stability and reliability of the rotation of the container 30 and further improving the buffering effect.

[0056] In one embodiment, please refer to Figure 5 The bottom wall of the limiting cavity 12 is used to install the identification card 40. Specifically, the identification card 40 is a radio frequency card (RFID card), which is a kind of automatic identification technology. It performs non-contact two-way data communication through wireless radio frequency, and uses wireless radio frequency to read and write the recording medium (electronic tag or radio frequency card), so as to achieve the purpose of identifying the target and exchanging data. It can accurately identify the corresponding sample or test in the container 30 carried by the container fixing device 100, avoid confusion, and ensure the reliability of the detection result.

[0057] In one embodiment, please refer to Figure 4 and Figure 5 One end of the bottom of the base 10 is chamfered 13 .

[0058] The chamfer 13 is located at the bottom of the base 10, and the chamfer 13 is located at the right end of the base 10. The chamfer 13 is tilted from top to bottom toward the direction close to the limit cavity 12, that is, the chamfer 13 is tilted from top to bottom toward the left. The chamfer 13 is used when the base 10 moves across the node, when there is a gap or height difference at the joint of the two nodes, by setting the chamfer 13, it is possible to effectively avoid the jamming and overturning caused by the gap or height difference at the joint, so that the transportation process of the container 30 is more stable and reliable.

[0059] In the preferred technical solution, the chamfer 13 is a rounded corner, that is, the bottom wall and the side wall of the base are transitionally connected in an arc, making the base more convenient and safe to use.

[0060] In one embodiment, please refer to Figure 5 The accommodating space 21 is gradually expanded in the direction away from the base 10, that is, the accommodating space 21 is gradually expanded from bottom to top, and the size of the top of the accommodating space 21 is larger than the size of the bottom of the accommodating space 21, which can play a guiding role, making it convenient for operators or machine grippers to place the container 30 into the accommodating space 21, making the use of the accommodating seat 20 more convenient and improving the transportation efficiency of the container 30.

[0061] In one embodiment, please refer to Fig.10 A connecting boss 15 is formed at one end of the base 10 , and a connecting groove 16 is formed at the other end of the base 10 , and the shape of the connecting groove 16 matches that of the connecting boss 15 .

[0062] A plurality of container fixtures 100 are arranged at intervals along the left-right direction on the track 201 of the sample analysis system 200. A connection boss 15 is formed at one end of the base 10, and a connection groove 16 is formed at the other end of the base 10. The connection boss 15 matches the shape of the connection groove 16, and the connection boss 15 is used to be inserted into the connection groove 16 in the adjacent base 10. During the sample filling time period, the subsequent container fixtures 100 on the conveyor belt continue to move along the extension direction of the track. Therefore, in the two subsequent adjacent container fixtures 100, the connection boss 15 of the latter base 10 is just inserted into the connection groove 16 of the former base 10, so that the latter container fixture 100 and the former container fixture 100 have a relatively stable position on the conveyor belt. Because the connecting boss 15 of the rear base 10 is just wrapped by the connecting groove 16 of the front base 10, a large part of the kinetic energy and inertial force generated by the rear container fixing device 100 driven by the conveyor belt is buffered and absorbed by the front container fixing device 100, so that the kinetic energy and inertial force received by the container 30 in the front container fixing device 100 are slightly smaller, so that the sample will not climb up along the cup wall of the container 30.

[0063] In addition, the present invention further provides a sample analysis system 200, which includes a track 201 and the container fixing device 100 as described above, and the base 10 can move along a first direction relative to the track 201. The specific structure of the container fixing device 100 refers to the above embodiment, and since the sample analysis system 200 adopts all the technical solutions of the above embodiment, it at least has all the beneficial effects brought by the technical solutions of the above embodiment, which will not be described one by one here.

[0064] The first direction is Figure 1 The left and right direction in .

[0065] The base 10 can move in the left and right direction relative to the track 201, that is, the extension direction of the track. Specifically, a conveyor belt is provided on the track 201, and the conveyor belt drives the base 10 to move. In other embodiments, the base 10 and the track 201 can move relative to each other by friction, rolling, or magnetic suspension.

[0066] In one embodiment, please refer to Figure 6 and Figure 7A conveyor belt is provided on the track 201, and the base 10 is placed on the conveyor belt, and the conveyor belt drives the base 10 to move along the first direction; the base 10 includes a stopper 14; the sample analysis system 200 also includes a limiting structure 202, and the limiting structure 202 can move along a second direction relative to the track 201, and the second direction is perpendicular to the first direction. The limiting structure 202 has a stopping surface 203, and the limiting structure 202 moves along the second direction so that the stopping surface 203 stops or disengages from the stopping portion 14.

[0067] The second direction is Figure 1 The front-to-back direction.

[0068] A conveyor belt is provided on the track 201, and the base 10 is placed on the conveyor belt. The conveyor belt drives the base 10 to move in the left-right direction, and the conveyor belt has the advantage of stable transmission. The right side of the base 10 has a stopper 14, and the stopper 14 extends in the up-down direction. The limiting structure 202 can move in the front-to-back direction relative to the track 201. The right side of the limiting structure 202 has a stopper surface 203, and the stopper surface 203 is used to contact with the stopper 14 of the base 10 to intercept and stop the container fixing device 100 from continuing to move to the right, so that the movement speed of the container fixing device 100 decreases, which is convenient for cooperating with the node gripper to complete the action of grabbing and placing the container 30.

[0069] The limiting structure 202 moves backwards so that the stop surface 203 contacts the stop portion 14, thereby intercepting and stopping the container fixing device 100, causing the speed of the container fixing device 100 to drop rapidly, so as to cooperate with the node gripper to complete the action of grasping and placing the container 30. The limiting structure 202 moves forwards so that the stop surface 203 is separated from the stop portion 14, thereby realizing that the limiting structure 202 releases the container fixing device 100, allowing the container fixing device 100 to continue to move to the right.

[0070] In one embodiment, please refer to Figure 2 , Figures 7 to 9 The accommodating seat 20 forms a limiting portion 23, and the limiting structure 202 has two limiting arms 204, one of which is formed with a stop surface 203, and a limiting groove 205 is formed between the two limiting arms 204. The limiting portion 23 is used to be inserted into the limiting groove 205, and a lifting inclined surface 206 is formed on the limiting arm 204. The limiting portion 23 moves along the lifting inclined surface 206 to make the base 10 detach from the conveyor belt or contact the conveyor belt.

[0071] The limiting structure 202 includes two limiting arms 204, which extend in the front-to-back direction. The two limiting arms 204 are spaced apart in the left-to-right direction, and a stop surface 203 is formed on the right limiting arm 204. A limiting groove 205 is formed between the two limiting arms 204, and a limiting portion 23 is formed in the middle of the accommodating seat 20. The limiting portion 23 is used to be inserted into the limiting groove 205 to fix the position of the accommodating seat 20 and the base 10. A lifting inclined surface 206 is formed on the limiting arm 204, and the lifting inclined surface 206 is inclined upward from the back to the front. The limiting portion 23 moves along the lifting inclined surface 206 to separate the base 10 from the conveyor belt.

[0072] A conveyor belt is provided on the track 201, and the conveyor belt drives the base 10 to move rightward to the corresponding position of the limiting structure 202, and then the limiting structure 202 moves backward, and the limiting portion 23 is inserted into the limiting groove 205, and the stop surface 203 contacts the stop portion 14, so that the speed of the container fixing device 100 drops rapidly. At this time, the belt still gives the base 10 a force to move rightward, and the limiting portion 23 moves upward along the lifting slope 206, so that the base 10 is separated from the conveyor belt to avoid the base 10 pressing the conveyor belt to cause the conveyor belt to be stuck or stuck, so as to cooperate with the node gripper to complete the action of grabbing and releasing the container 30.

[0073] After the process of transferring the container 30 is completed, the limiting structure 202 moves forward, the stop surface 203 disengages from the stop portion 14, and the limiting portion 23 moves downward along the lifting slope 206, so that the base 10 falls onto the conveyor belt and contacts the conveyor belt, thereby enabling the conveyor belt to drive the container fixing device 100 to continue to move.

[0074] Specifically, the center of gravity of the base 10 is located below the rotating shaft 221, or on the side of the rotating shaft 221 away from the stopper 14. In other words, the center of gravity of the base 10 is located below the rotating shaft 221, or on the left side of the rotating shaft 221. When the limiting structure 202 intercepts, it first intercepts the stopper 14, and sets the center of gravity of the base 10 below the rotating shaft 221 or on the left side of the rotating shaft 221, which can prevent the base 10 and the receiving seat 20 from tilting to the right, making the stopping process of the container fixing device 100 more stable and reliable.

[0075] In one embodiment, please refer to Figures 7 to 9 A guide surface 207 is formed on one side of the limiting arm 204 near the limiting groove 205, and the guide surface 207 is inclined. Specifically, the guide surface 207 is inclined rightward from front to back, and the setting of the guide surface 207 facilitates the limiting portion 23 to be inserted into the limiting groove 205, making the use of the limiting structure more convenient.

[0076] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A sample analysis system, characterized in that: The sample analysis system includes a track and a container fixture; The container fixing device is used for transporting containers, and the container fixing device comprises: A base, wherein the base has a first rotating portion; A receiving seat, wherein the receiving seat is formed with a receiving space, wherein the receiving space is used to place a container, and wherein the receiving seat has a second rotating portion, wherein the second rotating portion is rotatably connected to the first rotating portion; The base forms a limited cavity, the cavity wall of the limited cavity is used to limit the rotation range of the accommodating seat in the limited cavity, and a buffer pad is arranged on the side wall of the limited cavity or the side of the conveying accommodating seat; The base can move relative to the track along the extension direction of the track; A conveyor belt is arranged on the track, the base is placed on the conveyor belt, and the conveyor belt drives the base to move along the extension direction of the track; the base includes a stopper; the sample analysis system also includes a limiting structure, the limiting structure can move along a second direction relative to the track, the second direction is perpendicular to the extension direction of the track, the limiting structure has a stopper surface, the limiting structure moves along the second direction so that the stopper surface stops or separates from the stopper; The accommodating seat forms a limiting portion, and the limiting structure has two limiting arms, wherein the stop surface is formed on one of the limiting arms, and a limiting groove is formed between the two limiting arms. The limiting portion is used to be inserted into the limiting groove, and a lifting inclined surface is formed on the limiting arm. The limiting portion moves along the lifting inclined surface to make the base detach from the conveying belt or contact the conveying belt.

2. The sample analysis system according to claim 1, characterized in that: The first rotating part includes two connecting arms, which are respectively located on both sides of the base, and each connecting arm is provided with a rotating hole; the second rotating part includes two rotating shafts, one rotating shaft is correspondingly arranged to one rotating hole, and the rotating shaft is rotatably arranged in the corresponding rotating hole.

3. The sample analysis system according to claim 2, characterized in that: The height from the geometric center of the rotating hole to the bottom surface of the base is defined as H1, and the height from the total center of gravity of the accommodating seat, the container and the liquid in the container to the bottom surface of the base is defined as H2, wherein H1>H2.

4. The sample analysis system according to claim 1, wherein: One end of the bottom of the base is chamfered.

5. The sample analysis system according to any one of claims 1 to 3, characterized in that: The accommodating space is gradually expanded in a direction away from the base.

6. The sample analysis system according to any one of claims 1 to 3, characterized in that: A connecting boss is formed at one end of the base, and a connecting groove is formed at the other end of the base, wherein the connecting groove matches the shape of the connecting boss.

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