Sample analyzer

Abstract

The sample analyzer comprises a reagent storage device, the reagent storage device comprises a rack, a storage drawer, a bin door and a linkage mechanism, the storage drawer is slidably connected to the rack, the storage drawer is provided with a storage bin, the storage bin is used for storing reagent containers, and a bin opening is formed in the top of the storage drawer. The bin door is movably connected to the rack. The linkage mechanism is connected with the storage drawer and the bin door and used for driving the bin door to be opened relative to the bin opening when the storage drawer is opened outwards and driving the bin door to seal the bin opening when the storage drawer is closed inwards. According to the sample analyzer, the reagent storage device is provided with the linkage mechanism, and the linkage mechanism can synchronously drive the bin door to open or close the bin opening relative to the bin opening when the storage drawer is opened or closed, so that an operator does not need to additionally open or close the bin door, and the reagent storage device is extremely convenient to use; time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a sample analyzer. Background Technology

[0002] The reagent storage device is an important component of a sample analyzer. It consists of a storage compartment and a door. The storage compartment holds the reagent containers, and the door seals the compartment to ensure a good airtight seal. Since the reagent storage device is located inside the sample analyzer, operators must first open the analyzer's cover and then open the storage compartment door to insert or remove reagent containers. This process is cumbersome, time-consuming, and labor-intensive. Utility Model Content

[0003] In view of this, the present invention proposes a sample analyzer.

[0004] The sample analyzer proposed in this utility model includes a reagent storage device, wherein the reagent storage device comprises:

[0005] frame;

[0006] A storage drawer is slidably connected to the rack. The storage drawer is provided with a storage compartment for storing the reagent container. The top of the storage drawer is provided with a slot communicating with the storage compartment. The reagent container is placed into the storage compartment or taken out of the storage compartment through the slot.

[0007] The compartment door is movably connected to the frame;

[0008] A linkage mechanism is connected to the storage drawer and the compartment door. The linkage mechanism is used to drive the compartment door to open relative to the compartment opening when the storage drawer is opened outwards, and to drive the compartment door to close the compartment opening when the storage drawer is closed inwards.

[0009] As can be seen from the above technical solution, the sample analyzer proposed by this utility model, by setting a linkage mechanism in the reagent storage device, can synchronously drive the compartment door to open or close relative to the compartment opening when the storage drawer is opened or closed. Therefore, there is no need for the operator to perform additional operations to open or close the compartment door, making the reagent storage device extremely convenient to use and saving time and effort. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0011] Figure 1 This is a block diagram of a sample analyzer proposed in one embodiment of the present invention;

[0012] Figure 2 This is a schematic diagram of the storage drawer of the reagent storage device according to an embodiment of the present invention in the closed state;

[0013] Figure 3 This is a schematic diagram of the storage drawer of the reagent storage device according to an embodiment of the present invention in the open state;

[0014] Figure 4 This is a schematic diagram of the structure of a storage drawer according to an embodiment of the present invention;

[0015] Figure 5 This is a schematic diagram of the linkage mechanism and the compartment door according to an embodiment of the present invention;

[0016] Figure 6 This is a schematic diagram of the structure of a follower component proposed in an embodiment of this utility model;

[0017] Figure 7 This is a schematic diagram of the structure of a follower component proposed in another embodiment of the present invention;

[0018] Figure 8 This is a schematic diagram of the structure of a follower component proposed in another embodiment of the present invention;

[0019] Figure 9 This is a schematic diagram illustrating the cooperation between a storage drawer and a compartment door according to an embodiment of this utility model;

[0020] Figure 10 This is a top view schematic diagram of a reagent storage device according to an embodiment of the present invention;

[0021] Figure 11 This is a schematic diagram of the structure of a reagent storage device proposed in one embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are all within the protection scope of the present utility model.

[0023] The reagent storage device is an important component of a sample analyzer. It consists of a storage compartment and a door. The storage compartment holds reagent containers, and the door seals the compartment opening for a good airtight seal. Since the reagent storage device is located inside the sample analyzer, operators must first open the analyzer's cover and then the storage compartment door to insert or remove reagent containers. This process is cumbersome, time-consuming, and labor-intensive. Therefore, this invention proposes a sample analyzer suitable for applications such as hematology analysis, biochemical analysis, immunoassay, and molecular diagnostics.

[0024] like Figure 1 As shown, the sample analyzer 100 proposed in this embodiment of the present invention includes a reagent storage device 10, a reagent dispensing device 20, a sample dispensing device 30, and a detection device 40.

[0025] The reagent storage device 10 is used to store reagent containers containing reagents. In one embodiment, the reagent storage device 10 is configured to include a reagent tray, which is a disc-shaped structure with multiple positions for holding reagent containers. The reagent tray is rotatable and drives the reagent containers it holds to rotate, so as to rotate the reagent containers to a specific position, such as the position where the reagent dispensing device 20 draws the reagents.

[0026] The reagent dispensing device 20 is used to draw reagents from a reagent container and dispense the drawn reagents into a reaction vessel. In some embodiments, the reagent dispensing device 20 includes a reagent needle and a reagent needle driving mechanism, the reagent needle driving mechanism being used to drive the reagent needle to draw reagents from the reagent container and dispense the reagents into the reaction vessel. In some embodiments, the reagent needle driving mechanism includes a two-dimensional or three-dimensional driving mechanism, the two-dimensional or three-dimensional driving mechanism driving the reagent needle to perform two-dimensional or three-dimensional movement in space.

[0027] The sample dispensing device 30 is used to draw samples from a sample container and dispense the drawn samples into a reaction container. In some embodiments, the sample dispensing device 30 includes a sample needle and a sample needle driving mechanism, the sample needle driving mechanism being used to drive the sample needle to draw samples from the sample container and dispense the samples into the reaction container. In some embodiments, the sample needle driving mechanism includes a two-dimensional or three-dimensional driving mechanism, the two-dimensional or three-dimensional driving mechanism driving the sample needle to perform two-dimensional or three-dimensional movement in space.

[0028] The detection device 40 is used to detect the reaction solution made from the sample and reagents in the reaction vessel. In some embodiments, the sample detection device 40 includes a photometric component, which is used to perform photometric measurements on the incubated reaction solution to obtain the reaction data of the sample. For example, the photometric component detects the luminescence intensity of the reaction solution to be tested and calculates the concentration of the analyte in the sample through a calibration curve.

[0029] like Figures 2 to 4 As shown, in some embodiments, the reagent storage device 10 includes a frame 11, a storage drawer 12, a compartment door 13, and a linkage mechanism 14. The storage drawer 12 is slidably connected to the frame 11 and has a storage compartment 121 for storing reagent containers. The top of the storage drawer 12 has a compartment opening 122 communicating with the storage compartment 121. Reagent containers are placed into or removed from the storage compartment 121 through the compartment opening 122. The compartment door 13 is movably connected to the frame 11. The linkage mechanism 14 is connected to the storage drawer 12 and the compartment door 13. The linkage mechanism 14 is used to open the compartment door 13 relative to the compartment opening 122 when the storage drawer 12 is opened outwards and to close the compartment opening 122 when the storage drawer 12 is closed inwards.

[0030] The sample analyzer 100 proposed in this embodiment of the utility model has a linkage mechanism 14 set in the reagent storage device 10. When the storage drawer 12 is opened or closed, the linkage mechanism 14 can synchronously drive the compartment door 13 to open or close the compartment opening 122 relative to the compartment opening 122. Therefore, the operator does not need to perform the operation of opening or closing the compartment door 13, making the reagent storage device 10 extremely convenient to use and saving time and effort.

[0031] like Figure 5As shown, in some embodiments, the linkage mechanism 14 includes a follower component 141 and a transmission component 142. The follower component 141 is connected to the storage drawer 12, and the transmission component 142 is connected to the compartment door 13. The follower component 141 is provided with a track groove 143, and the transmission component 142 includes an embedded part 144. The embedded part 144 is embedded in the track groove 143 and can move along the track groove 143. When the follower component 141 moves with the storage drawer 12, the transmission component 142 is driven to move through the cooperation of the track groove 143 and the embedded part 144, so as to drive the compartment door 13 to open or close the compartment opening 122.

[0032] It should be noted that the positions of the track groove 143 and the embedded part 144 can be interchanged. That is, it is also possible for the follower component 141 to be provided with the embedded part 144 and the transmission component 142 to be provided with the track groove 143. The specific arrangement can be determined according to the actual design requirements.

[0033] like Figure 6 As shown, in some embodiments, the trajectory slot 143 includes a first slot segment 1431 and a second slot segment 1432. The first slot segment 1431 extends along the opening direction of the storage drawer 12, and the second slot segment 1432 is connected to the first slot segment 1431 and extends obliquely downward from the first slot segment 1431 toward the opening direction of the storage drawer 12. Here, "obliquely downward" refers to the orientation of the sample analyzer 100 under normal operating conditions.

[0034] The first slot segment 1431 includes a first end and a second end, with the second end of the first slot segment 1431 being closer to the door 13 relative to the first end of the first slot segment 1431. The second slot segment 1432 includes a first end and a second end, with the first end of the second slot segment 1432 connected to the second end of the first slot segment 1431. When the storage drawer 12 is closed, the insert 144 is located at the second end of the second slot segment 1432. When the storage drawer 12 is opened, the follower component 141 moves with the storage drawer 12, and the track groove 143 moves along the opening direction of the storage drawer 12. The insert 144 moves relative to the follower component 141 from the second end of the second slot segment 1432 toward the first end of the second slot segment 1432. The insert 144 has a gradual upward movement process, and the gradually upward-moving insert 144 drives the door 13 to gradually move upward. After the insert 144 enters the first slot 1431, it moves relative to the follower assembly 141 from the second end of the first slot 1431 toward the first end of the first slot 1431. During this process, the height of the insert 144 in the vertical direction remains unchanged, so the compartment door 13 remains at this height until the storage drawer 12 is opened to its limit position. Conversely, when the storage drawer 12 is closed, the insert 144 initially moves within the first slot 1431. As the insert 144 enters the first end of the second slot 1432 and moves toward the second end of the second slot 1432, the insert 144 undergoes a gradual descent. The gradually descending insert 144 drives the compartment door 13 to gradually move downward until the storage drawer 12 is closed to its limit position, at which point the compartment door 13 covers the compartment opening 122.

[0035] like Figure 6 As shown, in some embodiments, the second groove segment 1432 is linear, and the rising and falling of the door 13 is a uniform process. Of course, the second groove segment 1432 is not limited to being linear; for example, in other embodiments, such as... Figure 7 As shown, the second trough section 1432 is arc-shaped, and the rising and falling of the door 13 is a variable-speed process. For example, in some other embodiments, such as... Figure 8 As shown, the second groove segment 1432 includes a first straight segment 1432a and a second straight segment 1432b. The first straight segment 1432a connects the second straight segment 1432b and the first groove segment 1431. The inclination angles of the first straight segment 1432a and the second straight segment 1432b are different. For example, the inclination angle of the second straight segment 1432b is greater than the inclination angle of the first straight segment 1432a. During the opening process, the door 13 first lifts up quickly, then lifts up slowly, and finally remains stationary.

[0036] It should be noted that the above-mentioned implementation of the trajectory groove 143 enables the reagent storage device 10 to have a power failure self-locking protection function. Specifically, when the embedded part 144 is located in the first groove section 1431 and the door 13 is in the open state, if a power failure occurs during the process of the operator taking out or putting in the reagent container, the embedded part 144 can be kept in this position due to the support of the bottom side wall of the first groove section 1431. Therefore, the door 13 will not suddenly fall and injure the operator's arm.

[0037] In some embodiments, the inclination angle of the second groove segment 1432 is 45°±5°. In some embodiments, the inclination angle of the second groove segment 1432 is any one of 40°, 41°, 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, and 50°, or any value between any two adjacent values. In this embodiment, the inclination angle of the second groove segment 1432 is 45°. In this embodiment, by setting the inclination angle of the second groove segment 1432 to the above value, the resistance to the insert 144 is reduced while the lifting speed of the compartment door 13 is faster, avoiding prolonged friction between the compartment door 13 and the top surface of the storage drawer 12 due to excessively slow lifting speed. It is understood that if the inclination angle of the second groove segment 1432 is small, although the resistance to the insert 144 is also small, it will also result in excessively slow lifting speed of the compartment door 13, causing prolonged friction between the compartment door 13 and the top surface of the storage drawer 12. If the inclination angle of the second groove section 1432 is large, although the upward speed is faster, it will also result in greater resistance to the embedded part 144, requiring a larger driving force to drive the embedded part 144 to rise.

[0038] like Figure 5 As shown, in some embodiments, the follower component 141 includes a first structural member 1411, which is located diagonally above the door 13, and the trajectory groove 143 is a through groove disposed in the first structural member 1411. Optionally, the first structural member 1411 is a sheet metal part. Optionally, the first structural member 1411 is a linear component.

[0039] like Figure 5As shown, in some embodiments, the transmission assembly 142 further includes a second structural member 1421, a third structural member 1422, and a fourth structural member 1423. The second structural member 1421 is movably connected to the frame 11. The embedded part 144, the third structural member 1422, and the fourth structural member 1423 are all connected to the second structural member 1421. The third structural member 1422 and the fourth structural member 1423 are connected to the compartment door 13. During the process of the embedded part 144 rising or falling, it drives the second structural member 1421 to rise or fall. The rising or falling second structural member 1421 drives the third structural member 1422 and the fourth structural member 1423 to rise or fall. The rising or falling third structural member 1422 and the fourth structural member 1423 drive the compartment door 13 to rise or fall, thereby enabling the compartment door 13 to open or close the compartment opening 122.

[0040] like Figure 5 As shown, in some embodiments, the third structural member 1422 and the fourth structural member 1423 are arranged along the centerline of the door 13. This implementation facilitates force balance on the door 13, thereby enabling smooth lifting and lowering and a better sealing effect on the opening 122.

[0041] In some embodiments, the insert 144 is a bearing. In this embodiment, rolling friction occurs between the bearing and the sidewall of the track groove 143, resulting in low friction and reduced energy loss. Furthermore, by configuring the insert 144 as a bearing, it facilitates smooth movement of the insert 144 within the track groove 143.

[0042] In some embodiments, the bearing is a cam bearing, which has a built-in mounting shaft, making bearing installation very convenient. Of course, it is not limited to cam bearings; other types of bearings can also be used, depending on the actual design requirements.

[0043] It should be noted that the embedded part 144 is not limited to being a bearing. For example, in some other embodiments, the embedded part 144 can be a cylinder, a sphere, or other components of any shape, depending on the actual design requirements.

[0044] like Figure 4 As shown, in some embodiments, the reagent storage device 10 further includes a sealing strip 15, which is disposed on the storage drawer 12 and surrounds the opening 122. The sealing strip 15 is used to form a seal between the door 13 and the opening 122. In this embodiment, by providing the sealing strip 15, the sealing effect of the door 13 on the opening 122 can be improved.

[0045] It should be noted that the sealing strip 15 is not limited to being installed in the storage drawer 12. For example, in some other embodiments, the sealing strip 15 can also be installed on the side of the door 13 facing the opening 122, as long as the sealing strip 15 can form a seal between the door 13 and the opening 122.

[0046] like Figure 4 and Figure 9 As shown, in some embodiments, the top of the storage drawer 12 is provided with a mating surface 123. The mating surface 123 is positioned opposite to the compartment door 13 when the compartment door 13 is closed. The compartment opening 122 is located at the mating surface 123. The mating surface 123 extends downward in the opening direction of the storage drawer 12, and the bottom surface of the compartment door 13 is approximately parallel to the top surface of the storage drawer 12. The term "extends downward" refers to the orientation of the sample analyzer 100 under normal operating conditions.

[0047] Understandably, the mating surface 123 is part of the top surface of the storage drawer 12. In some embodiments, only the mating surface 123 may extend downward in the opening direction of the storage drawer 12. In other embodiments, the entire top surface of the storage drawer 12 may extend downward in the opening direction of the storage drawer 12. The specific design can be determined according to actual design needs.

[0048] Taking a sealing strip 15 installed on the storage drawer 12 and surrounding the opening 122 as an example, when the storage drawer 12 is closed, the door 13 presses down on the sealing strip 15 to create a seal. When the storage drawer 12 is opened, although the door 13 rises, it is not completely separated from the sealing strip 15. Therefore, the door 13 and the sealing strip 15 are in contact with each other during a portion of the opening stroke of the storage drawer 12, resulting in friction. This friction causes the opening of the storage drawer 12 to require a relatively large driving force. In this embodiment, by setting the mating surface 123 to extend downwards in the opening direction of the storage drawer 12, and making the bottom surface of the door 13 approximately parallel to the top surface of the storage drawer 12, this implementation shortens the stroke during which friction occurs between the door 13 and the sealing strip 15, allowing the door 13 to move to a state of separation from the sealing strip 15 relatively quickly.

[0049] In some embodiments, the inclination angle of the mating surface 123 is 5° ± 1°. In some embodiments, the inclination angle of the mating surface 123 is any one of 4°, 5°, and 6°, or any value between any two adjacent values. In this embodiment, the inclination angle of the mating surface 123 is set to 5°. In this embodiment, by setting the inclination angle of the mating surface 123 to the above value, not only can an excessively large inclination angle of the mating surface 123 be avoided from affecting the visual effect, but the travel distance between the door 13 and the sealing strip 15 where friction occurs can also be minimized.

[0050] In some embodiments, the door 13 moves vertically up and down under the drive of the linkage mechanism 14. In this embodiment, the horizontal space required for the door 13 to move is smaller, which helps to reduce the horizontal dimensions of the reagent storage device 10. Of course, the door 13 is not limited to moving vertically up and down under the drive of the linkage mechanism 14; it can also move in other directions, depending on the actual design requirements.

[0051] like Figure 2 , Figure 3 and Figure 5 As shown, in some embodiments, the reagent storage device 10 further includes a sliding mechanism 16. The sliding mechanism 16 includes at least one sliding component 161, which includes a first sliding member 1611 and a second sliding member 1612. The first sliding member 1611 is connected to the frame 11, and the second sliding member 1612 is connected to the transmission component 142. The first sliding member 1611 and the second sliding member 1612 slide in a vertical direction. When the storage drawer 12 moves, the follower component 141 applies an upward or downward force to the transmission component 142 through the engagement of the embedded part 144 and the track groove 143. Guided by the first sliding member 1611 and the second sliding member 1612, the transmission component 142 moves up and down in the vertical direction, thereby driving the compartment door 13 to move up and down in the vertical direction, so that the compartment door 13 opens or closes the compartment opening 122.

[0052] In some embodiments, the first slider 1611 is a slide block and the second slider 1612 is a guide rail.

[0053] It should be noted that the positions of the slide and the guide rail can be interchanged; that is, the first sliding member 1611 can be the guide rail, and the second sliding member 1612 can be the slide. It should also be noted that the first sliding member 1611 is not limited to being a slide, and the second sliding member 1612 is not limited to being a guide rail. For example, in some other embodiments, the first sliding member 1611 is a bushing, and the second sliding member 1612 is a guide rod. Furthermore, in some other embodiments, the first sliding member 1611 is a linear bearing, and the second sliding member 1612 is a shaft. The key is that the first sliding member 1611 and the second sliding member 1612 can achieve a sliding connection.

[0054] like Figure 5As shown, in some embodiments, the sliding mechanism 16 includes a first sliding component 161a and a second sliding component 161b, and the transmission component 142 is slidably connected to the frame 11 in the vertical direction through the first sliding component 161a and the second sliding component 161b. In this embodiment, the first sliding component 161a and the second sliding component 161b ensure that the transmission component 142 experiences balanced force and runs smoothly during its up-and-down movement, thereby allowing the compartment door 13 to open or close the compartment opening 122 smoothly. The structures of the first sliding component 161a and the second sliding component 161b can be found in the structure of the sliding component 161 described above. Of course, the sliding mechanism 16 is not limited to including only the first sliding component 161a and the second sliding component 161b. For example, in some other embodiments, the sliding mechanism 16 may include only the first sliding component 161a, or it may include multiple sliding components 161, such as a third, fourth, and fifth component, depending on the actual design requirements.

[0055] like Figure 10 As shown, in some embodiments, the first sliding component 161a and the second sliding component 161b are arranged along a first direction X, which is the opening direction of the storage drawer 12. With this embodiment, the lever arm from the insert 144 to the sliding mechanism 16 can be reduced, allowing the force generated by the follower component 141 on the insert 144 to be better transmitted to the sliding mechanism 16, making the upward movement of the transmission component 142 and the door 13 as a whole easier.

[0056] It should be noted that the first direction X is not limited to the opening direction of the storage drawer 12. For example, in some other embodiments, the first direction X can be set at an acute angle with the opening direction of the storage drawer 12, as long as the arrangement of the first sliding component 161a and the second sliding component 161b can shorten the lever arm of the embedded part 144 to the sliding mechanism 16.

[0057] like Figure 2 and Figure 3As shown, in some embodiments, the reagent storage device 10 further includes a clamping assembly 17, which is mounted on the frame 11. The clamping assembly 17 provides a clamping force to push the compartment door 13 toward the compartment opening 122. In this embodiment, by providing the clamping assembly 17, the compartment door 13 can be clamped toward the compartment opening 122, improving the sealing effect of the compartment opening 122. On the other hand, the downward clamping force of the clamping assembly 17 can be transmitted to the insert 144 through the transmission assembly 142, so that the insert 144 can maintain contact with the bottom groove wall of the track groove 143. Thus, when the storage drawer 12 is opened, the insert 144 can respond quickly under the action of the bottom groove wall of the track groove 143, thereby lifting the compartment door 13 in time and avoiding prolonged friction between the compartment door 13 and the storage drawer 12.

[0058] like Figure 10 As shown, in some embodiments, the bottom surface of the compartment door 13 has a quadrilateral shape, including a first diagonal with a first end and a second end. The clamping assembly 17 includes a first clamping member 171 and a second clamping member 172. The first clamping member 171 is disposed at or near the first end of the first diagonal, and the second clamping member 172 is disposed at or near the second end of the first diagonal. In this embodiment, the clamping assembly 17 applies a more balanced force to the compartment door 13, avoiding a situation where one side of the compartment door 13 is clamped while the other side is raised, thereby enabling the compartment door 13 to achieve a better sealing effect.

[0059] like Figure 10 As shown, in some embodiments, the reagent storage device 10 further includes a sliding mechanism 16, which includes a first sliding component 161a and a second sliding component 161b. The door 13 is slidably connected to the frame 11 in the vertical direction via the first sliding component 161a and the second sliding component 161b. The first sliding component 161a and the second sliding component 161b are arranged along the sliding direction of the storage drawer 12. The sliding mechanism 16 includes a first side and a second side opposite to the first side in the second direction Y. The second direction Y is horizontal and perpendicular to the sliding direction of the storage drawer 12. The clamping component 17 includes a first clamping member 171 and a second clamping member 172. The first clamping member 171 is disposed on the first side of the sliding mechanism 16, and the second clamping member 172 is disposed on the second side of the sliding mechanism 16. In this embodiment, the first sliding component 161a, the second sliding component 161b, the first clamping member 171, and the second clamping member 172 exert force on the door 13 from four directions, so that the door 13 can form a better sealing effect.

[0060] like Figure 10As shown, in some embodiments, the rack 11 includes a first crossbeam 111, which is disposed above the compartment door 13 and is arranged along the opening direction of the storage drawer 12. A first sliding assembly 161a and a second sliding assembly 161b are spaced apart along the extending direction of the first crossbeam 111 and connected to the first crossbeam 111.

[0061] like Figure 10 As shown, in some embodiments, the first crossbeam 111 is provided with a first mounting portion 112, and the first clamping member 171 is mounted on the first mounting portion 112.

[0062] like Figure 10 As shown, in some embodiments, the frame 11 further includes a second crossbeam 113, which is disposed above the door 13 and connected to the first crossbeam 111 in a T-shape. The second crossbeam 113 is provided with a second mounting part 114, and a second clamping member 172 is mounted on the second mounting part 114.

[0063] like Figure 11 As shown, in some embodiments, the clamping assembly 17 includes a first spring 173 and a second spring 174. The first spring 173 and the second spring 174 abut against the side of the compartment door 13 opposite to the compartment opening 122 and are in a compressed state. The first spring 173 and the second spring 174 press against the compartment door 13 and the compartment opening 122 through elastic force. In this embodiment, the clamping assembly 17 uses a spring, which is convenient to install and has low cost. Of course, the clamping assembly 17 is not limited to using a spring; other elastic elements, such as spring sheets, spring positioning pins, etc., can also be used.

[0064] like Figure 11 As shown, in some embodiments, the frame 11 further includes a first guide post 115 and a second guide post 116. The first guide post 115 is mounted on the first mounting portion 112 and extends vertically downward. A first spring 173 is sleeved on the first guide post 115. The second guide post 116 is mounted on the second mounting portion 114 and extends vertically downward. A second spring 174 is sleeved on the second guide post 116. The first guide post 115 can guide and limit the first spring 173, preventing the first spring 173 from shifting when compressed. The second guide post 116 can guide and limit the second spring 174, preventing the second spring 174 from shifting when compressed.

[0065] like Figure 2 and Figure 3As shown, in some embodiments, the reagent storage device 10 further includes a first input device 18, a first drive mechanism 19, and a controller. The first input device 18 is used to input instructions, the first drive mechanism 19 is used to drive the storage drawer 12 to slide, and the controller is electrically connected to the first input device 18 and the first drive mechanism 19. The controller is used to control the drive mechanism to drive the storage drawer 12 to open or close automatically according to the instructions input by the first input device 18.

[0066] When a user needs to open or close the storage drawer 12, they input a command into the first input device 18. After receiving the input command from the first input device 18, the controller controls the first drive mechanism 19 to open or close the storage drawer 12. In this embodiment, the storage drawer 12 is opened or closed by the first drive mechanism 19, making the operation simple and effortless. Of course, in some other embodiments, the reagent storage device 10 may not have the first input device 18, the first drive mechanism 19, and the controller, and the storage drawer 12 may be opened or closed manually by the operator.

[0067] In some embodiments, the first input element 18 is a first button, which allows the operator to input instructions to open or close the storage drawer 12 into the reagent storage device 10 by pressing the first button. Of course, the first input element 18 is not limited to being a first button. For example, in some other embodiments, the first input element 18 can also be a voice recognition component, allowing the operator to input instructions to open or close the storage drawer 12 via voice. Alternatively, in some other embodiments, the sample analyzer 100 has a touchscreen on its housing, and the first input element 18 is a virtual button on the touchscreen, allowing the operator to input instructions to open or close the storage drawer 12 by touching the virtual button.

[0068] like Figure 2 and Figure 3 As shown, in some embodiments, the storage drawer 12 includes a panel 124, and a first button is disposed on the panel 124 of the storage drawer 12.

[0069] In some embodiments, the sample analyzer 100 includes a housing with an opening, and a reagent storage device 10 is disposed inside the housing and located at the opening. When the storage drawer 12 is closed, the panel 124 of the storage drawer 12 is flush with the housing of the sample analyzer 100.

[0070] like Figure 2 and Figure 3As shown, in some embodiments, the first drive mechanism 19 includes a rack 191, a motor 192, and a gear 193. The rack 191 is arranged along the sliding direction of the storage drawer 12 and connected to the frame 11. The motor 192 is connected to the storage drawer 12, and the gear 193 is connected to the output shaft of the motor 192 and meshes with the rack 191. When the motor 192 is running, it drives the gear 193 to rotate. Since the gear 193 meshes with the rack 191, the gear 193 moves along the rack 191. The moving gear 193 drives the motor 192 to move along the rack 191. Since the motor 192 is connected to the storage drawer 12, the moving motor 192 drives the storage drawer 12 to move. In this embodiment, the engagement of the gear 193 and the rack 191 occupies less space, which can effectively reduce the volume of the reagent storage device 10 and thus the volume of the sample analyzer 100. At the same time, the engagement of the gear 193 and the rack 191 has a lower cost.

[0071] It should be noted that the first drive mechanism 19 is not limited to the transmission method of rack and pinion 191 and gear 193. For example, in some other embodiments, the first drive mechanism 19 may also adopt the transmission method of belt drive pair, chain drive pair, ball screw drive pair or linear motor 192, which can be determined according to the actual design needs.

[0072] In some embodiments, the projections of the motor 192 and the linkage mechanism 14 on the horizontal plane are arranged side by side along the second direction Y, which is horizontal and perpendicular to the sliding direction of the storage drawer 12. In this embodiment, the motor 192 and the linkage mechanism 14 are rationally arranged and have a compact structure, which helps to reduce the volume of the reagent storage device 10.

[0073] like Figure 3 As shown, in some embodiments, the reagent storage device 10 further includes a reagent tray 101, a second input device 102, a second drive mechanism, and a controller. The reagent tray 101 is rotatably disposed in the storage cavity. The reagent tray 101 has multiple placement positions around its central axis for placing reagent containers. The second input device 102 is used to input commands. The second drive mechanism is used to drive the reagent tray 101 to rotate. The controller is electrically connected to the second input device 102 and the second drive mechanism. The controller is used to control the rotation of the reagent tray 101 according to the commands input by the second input device 102.

[0074] When a user needs to place or remove a reagent container, they input a command into the second input device 102. Upon receiving the command, the controller controls the second drive mechanism to rotate the reagent tray 101, causing the reagent slot where the container needs to be placed or removed to rotate to the opening 122. The operator then places the reagent container containing the reagent into that slot or removes an empty reagent container from it. In this embodiment, the reagent tray 101 is driven to rotate by the second drive mechanism, making operation simple and effortless. Of course, in some other embodiments, the reagent storage device 10 may not have the second input device 102, the second drive mechanism, and the controller; the reagent tray 101 can be rotated manually by the operator.

[0075] In some embodiments, the second input device 102 is a second button, which allows the operator to input a command to rotate the reagent tray 101 into the reagent storage device 10 by pressing the second button. Of course, the second input device 102 is not limited to being a second button. For example, in some other embodiments, the second input device 102 can also be a voice recognition component, allowing the operator to input a command to open or close the storage drawer 12 via voice. Alternatively, in some other embodiments, the sample analyzer 100 has a touchscreen on its housing, and the second input device 102 is a virtual button on the touchscreen, allowing the operator to input a command to open or close the storage drawer 12 by touching the virtual button.

[0076] In some embodiments, the second input element 102 is disposed on the top surface of the storage drawer 12.

[0077] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model.

Claims

1. A sample analyzer characterized by, The reagent storage device comprises a reagent storage device, which comprises: a rack; a storage drawer slidably connected to the rack, the storage drawer being provided with a storage bin for storing reagent containers, a bin opening being provided on the top of the storage drawer and communicating with the storage bin, the reagent containers being put into or taken out of the storage bin through the bin opening; a bin door movably connected to the rack; a linkage mechanism connected to the storage drawer and the bin door, the linkage mechanism being used to drive the bin door to open relative to the bin opening when the storage drawer is opened outward and to drive the bin door to close the bin opening when the storage drawer is closed inward.

2. The sample analyzer of claim 1, wherein, The linkage mechanism comprises: a follower assembly connected to the storage drawer; a transmission assembly connected to the bin door; wherein one of the follower assembly and the transmission assembly is provided with a track groove, and the other of the follower assembly and the transmission assembly comprises an embedded part embedded in the track groove and movable along the track groove, the follower assembly being driven to move by the cooperation of the track groove and the embedded part when the follower assembly moves to drive the transmission assembly to move, so as to drive the bin door to open or close the bin opening.

3. The sample analyzer of claim 2, wherein, The track groove is provided on the follower assembly, and the track groove comprises: a first groove segment extending in the opening direction of the storage drawer; a second groove segment connected to the first groove segment and extending downwardly and obliquely from the first groove segment toward the opening direction of the storage drawer.

4. The sample analyzer of claim 2, wherein, The embedded part is a bearing.

5. The sample analyzer of claim 1, wherein, The reagent storage device further comprises a sealing rubber strip, which is provided on the storage drawer and surrounds the bin opening or is provided on the side of the bin door facing the bin opening, and the sealing rubber strip is used to form a seal between the bin door and the bin opening.

6. The sample analyzer of claim 5, wherein, The top of the storage drawer is provided with a matching surface, the matching surface being oppositely arranged with the bin door when the bin door is closed, the bin opening being provided at the position of the matching surface, and the matching surface extending downwardly and obliquely toward the opening direction of the storage drawer, the bottom surface of the bin door being substantially parallel to the matching surface.

7. The sample analyzer of claim 6, wherein, The inclination angle of the matching surface is 5°±1°.

8. The sample analyzer of claim 1, wherein, The bin door is driven by the linkage mechanism to move up and down in the vertical direction.

9. The sample analyzer of claim 2, wherein, The reagent storage device further comprises a sliding mechanism, which comprises at least one sliding assembly, the sliding assembly comprising a first sliding member and a second sliding member, the first sliding member being connected to the rack, the second sliding member being connected to the transmission assembly, and the first sliding member and the second sliding member being slidably matched in the vertical direction; when the storage drawer moves, the follower assembly applies an upward or downward force to the transmission assembly through the cooperation of the embedded part and the track groove, the transmission assembly being guided by the first sliding member and the second sliding member to move up and down in the vertical direction to drive the bin door to move up and down in the vertical direction, so that the bin door opens or closes the bin opening.

10. The sample analyzer of claim 9, wherein, The sliding mechanism comprises a first sliding assembly and a second sliding assembly, and the transmission assembly is slidably connected with the rack in the vertical direction through the first sliding assembly and the second sliding assembly.

11. The sample analyzer of claim 10, wherein, The first sliding assembly and the second sliding assembly are arranged along a first direction, which is the opening direction of the storage drawer or is arranged at an acute angle with the opening direction of the storage drawer.

12. The sample analyzer of claim 1, wherein, The reagent storage device further comprises a pressing assembly installed on the rack, which is used to provide a pressing force for pushing the door towards the opening.

13. The sample analyzer of claim 12, wherein, The bottom surface of the door has a quadrilateral profile, which comprises a first diagonal line comprising a first end and a second end; the pressing assembly comprises a first pressing member and a second pressing member, the first pressing member is arranged at or near the first end of the first diagonal line, and the second pressing member is arranged at or near the second end of the first diagonal line.

14. The sample analyzer of claim 12, wherein, The reagent storage device further comprises a sliding mechanism comprising a first sliding assembly and a second sliding assembly, the door is slidably connected with the rack in the vertical direction through the first sliding assembly and the second sliding assembly, the first sliding assembly and the second sliding assembly are arranged along the sliding direction of the storage drawer, and the sliding mechanism comprises a first side and a second side opposite to the first side in a second direction, which is a horizontal direction and is perpendicular to the sliding direction of the storage drawer. The pressing assembly comprises a first pressing member and a second pressing member, the first pressing member is arranged at the first side of the sliding mechanism, and the second pressing member is arranged at the second side of the sliding mechanism.

15. The sample analyzer of claim 12, wherein, The pressing assembly comprises a first spring and a second spring, which abut against the side of the door opposite to the opening and are in a compressed state.

16. The sample analyzer of claim 1, wherein, The reagent storage device further comprises a first input member for inputting instructions, a first driving mechanism for driving the sliding of the storage drawer, and a controller electrically connected with the first input member and the first driving mechanism, which is used to control the driving mechanism to automatically open or close the storage drawer according to the instructions input by the first input member.

17. The sample analyzer of claim 16, wherein, The first driving mechanism comprises a rack, a motor and a gear, the rack is arranged along the sliding direction of the storage drawer and is connected with the rack, the motor is connected with the storage drawer, and the gear is connected with the output shaft of the motor and is engaged with the rack.

18. The sample analyzer of claim 17, wherein, The projections of the motor and the linkage mechanism on the horizontal plane are arranged side by side along a second direction, which is a horizontal direction and is perpendicular to the sliding direction of the storage drawer.

19. The sample analyzer of claim 1, wherein, The reagent storage device further comprises a reagent disc, a second input, a second driving mechanism and a controller, the reagent disc is rotatably arranged in the storage bin, a plurality of placement positions are arranged around a central axis of the reagent disc, the placement positions are used for placing the reagent containers, the second input is used for inputting instructions, the second driving mechanism is used for driving the reagent disc to rotate, the controller is electrically connected with the second input and the second driving mechanism, and the controller is used for controlling the reagent disc to rotate according to the instructions input by the second input.

Images