Sample analyzer, reagent bottle uncapping device and limiting mechanism

Abstract

The invention discloses a sample analyzer, a reagent bottle uncapping device and a limiting mechanism, and the reagent bottle limiting mechanism comprises a limiting assembly used for limiting a reagent bottle; the guide assembly is used for limiting the moving direction of the limiting assembly; and the driving assembly is used for driving the limiting assembly to move on the guide assembly. When the reagent bottle is uncovered, the driving assembly drives the limiting assembly mounted on the guide assembly to move to the reagent bottle, and the limiting assembly limits the position of the reagent bottle; the phenomenon that the reagent bottle rotates along with the bottle cap in the uncapping process of the reagent bottle by a manipulator for uncapping is prevented, and meanwhile, the reagent bottle can be effectively prevented from being lifted by the bottle cap, so that the bottle cap cannot be separated from the bottle body.

Description

Technical Field

[0001] The invention belongs to the technical field of medical equipment, and in particular relates to a sample analyzer, a reagent bottle cover opening device and a limiting mechanism. Background Art

[0002] In a sample analyzer, each reagent is usually stored separately in a reagent bottle with a screw cap. In particular, in a sample analyzer with integrated automatic reagent loading, the automatic opening of the reagent bottle by the opening device is a core and important function; and in the process of rotating the reagent bottle cap, it is inevitable that the body of the reagent bottle rotates with the bottle cap, or is lifted up by the bottle cap, or the bottle cap and the bottle body cannot be separated. Summary of the invention

[0003] The invention discloses a sample analyzer, a reagent bottle opening device and a limiting mechanism, so as to solve the problem in the prior art that when the reagent bottle is opened, the bottle body rotates with the bottle cap, is lifted up together with the bottle cap or cannot be separated.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: A reagent bottle limiting mechanism, comprising: A limiting component, used to limit the position of the reagent bottle; A guide component, used to limit the moving direction of the limit component; The driving assembly is used to drive the limiting assembly to move on the guiding assembly.

[0005] Furthermore, the limiting component includes: A limiting block is used to limit the position of the reagent bottle; The driving block is connected to the limit block on one side and to the driving assembly on the other side, and is used to drive the limit block to move on the guide assembly.

[0006] Furthermore, the driving block and the limiting block are connected via an elastic mechanism.

[0007] Furthermore, the elastic mechanism includes a spring and a second guide rod; the second guide rod includes a second rod portion and a second blocking portion; one end of the second rod portion is fixed on the driving block, and the other end slides through the limit block and is connected to the second blocking portion; the spring is sleeved on the second rod portion between the driving block and the limit block.

[0008] Furthermore, the guide assembly comprises: A first guide rod, used for slidingly installing the limiting assembly; A mounting seat, used for mounting a first guide rod, wherein the first guide rod is mounted on both sides of the mounting seat; The first guide rod comprises a first rod portion and a first blocking portion; one end of the first rod portion is fixed on the mounting seat, and the other end slides through the limiting assembly and is fixed on the first blocking portion.

[0009] Furthermore, the driving assembly includes: A rotating shaft, one end of which is rotatably mounted in the mounting seat, and the other end of which is threadedly connected to the limit assembly; The first driving mechanism is used to drive the rotating shaft to rotate, thereby driving the limiting assembly to slide on the first guide rod.

[0010] A reagent bottle opening device, comprising: An opening mechanism, used for opening the reagent bottle; The reagent bottle limiting mechanism described above is installed on one side of the cover opening mechanism and is used to limit the bottle body of the reagent bottle during the cover opening process.

[0011] Furthermore, the cover opening mechanism comprises: A clamping claw is used to open the cap of the reagent bottle; A clamping seat for slidingly mounting the clamping jaws; A second driving mechanism is used to drive the clamping claw to slide on the clamping seat; The third driving mechanism is used to drive the clamping seat to rotate, thereby driving the clamping claw to rotate.

[0012] Furthermore, the clamping seat and the rotating shaft are meshed with each other through gears to drive the rotating shaft to rotate.

[0013] A sample analyzer comprises the reagent bottle cover opening device described above.

[0014] The present invention adopts the above technical solution and has the following advantages: When the reagent bottle of the present invention is opened, the driving component drives the limiting component installed on the guide component to move to the reagent bottle, and the limiting component limits the position of the reagent bottle; this prevents the bottle body of the reagent bottle from rotating with the bottle cap during the opening process, and at the same time, can effectively prevent the reagent bottle from being lifted up by the bottle cap, so that the bottle cap and the bottle body cannot be separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the reagent bottle limiting device of the present invention; Figure 2 An exploded view of the reagent bottle limiting device of the present invention; Figure 3 It is a structural diagram of the reagent bottle cover opening and limiting device of the present invention.

[0016] Figure markings: 1-mounting seat; 2-first guide rod; 3-first rod portion; 4-first blocking portion; 5-rotating shaft; 6-bearing; 7-first gear; 8-driving block; 9-limiting block; 10-spring; 11-second guide rod; 12-second rod portion; 13-second blocking portion; 14-linear bearing; 15-reset baffle; 16-reset optical coupler; 17-clamping seat; 18-clamping claw; 19-third driving mechanism; 20-second gear. Implementation The technical solutions in the embodiments of the present invention are described clearly and completely below. 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.

[0017] A reagent bottle limiting mechanism comprises: a limiting component for limiting the reagent bottle; a guiding component for limiting the moving direction of the limiting component; and a driving component for driving the limiting component to move on the guiding component.

[0018] When the reagent bottle is opened, the driving assembly drives the limiting assembly installed on the guide assembly to move to the bottle body of the reagent bottle, and the limiting assembly limits the bottle body of the reagent bottle; this prevents the opening mechanism from rotating the body of the reagent bottle following the bottle cap during the opening process of the reagent bottle; at the same time, it can effectively prevent the body of the reagent bottle from being lifted up by the bottle cap, making it impossible for the bottle cap to separate from the bottle body.

[0019] like Figure 1 , Figure 2 As shown, the guide assembly includes a mounting seat 1 and a first guide rod 2; two first guide rods 2 are provided and installed on both sides of the mounting seat 1; the first guide rod 2 includes a first rod portion 3 and a first blocking portion 4; one end of the first rod portion 3 is fixed on the mounting seat 1, and the other end slides through the limiting assembly and is fixed on the first blocking portion 4; the driving assembly can drive the limiting assembly to move back and forth on the first rod portion 3.

[0020] The driving assembly includes a rotating shaft 5 and a first driving mechanism (not shown); one end of the rotating shaft 5 is rotatably mounted in the mounting seat 1 through a bearing 6, and the other end is threadedly connected to the limiting assembly; the first driving mechanism is used to drive the rotating shaft 5 to rotate. Since the limiting assembly is threadedly connected to the rotating shaft 5, the rotating shaft 5 here is equivalent to a screw, which can drive the limiting assembly to slide up and down on the first rod portion 3.

[0021] An external thread is provided at one end of the rotating shaft 5 close to the limit assembly, and a threaded hole adapted to the external thread is provided on the limit assembly; when the rotating shaft 5 is inserted into the limit assembly through the external thread, a screw structure is formed; it is convenient for the first driving mechanism to drive the limit assembly to slide up and down on the first guide rod 2.

[0022] Furthermore, a first gear 7 is provided on the rotating shaft 5 ; the rotating shaft 5 and the first driving mechanism are meshed with each other through the first gear 7 , and the first driving mechanism drives the rotating shaft 5 to rotate through the first gear 7 .

[0023] It is understandable that the present invention can also use other methods to drive the movement of the limit assembly on the guide assembly. For example, a linear motor can be used to directly drive the limit assembly to move on the guide assembly. At the same time, the guide assembly is not limited to the guide rod form, and a linear slider or a guide rail structure can also be used. In other embodiments, the guide assembly can be omitted, and the limit assembly can be directly driven to move by the first drive mechanism.

[0024] The limit assembly includes a driving block 8 and a limit block 9; the driving block 8 and the limit block 9 are both slidably mounted on the first guide rod 2, and the limit block 9 is arranged below the driving block 8; the driving block 8 and the limit block 9 are connected by an elastic mechanism.

[0025] The elastic mechanism includes a spring 10 and a second guide rod 11; the second guide rod 11 includes a second rod portion 12 and a second blocking portion 13; one end of the second rod portion 12 is fixed on the driving block 8, and the other end slides through the limit block 9 to connect with the second blocking portion 13; the spring 10 is sleeved on the second rod portion 12 between the driving block 8 and the limit block 9.

[0026] Linear bearings 14 are fixed on the driving block 8 and the limit block 9, so that the driving block 8 and the limit block 9 can reciprocate along the first guide rod 2 on the mounting seat 1. A threaded hole adapted to the external thread of the rotating shaft 5 is provided on the driving block 8. When the rotating shaft 5 rotates and drives the driving block 8 to move downward on the first guide rod 2, the driving block 8 compresses the spring 10, driving the limit block 9 to move downward. When the limit block 9 contacts the body of the reagent bottle, the limit block 9 stops moving, and the driving block 8 continues to move downward, compressing the spring 10, so that the limit block 9 provides a greater squeezing force on the body of the reagent bottle, limits the movement of the body of the reagent bottle, and cooperates with the opening mechanism to open the reagent bottle; after the opening is completed, the rotating shaft 5 rotates, driving the driving block 8 to move upward on the first guide rod 2, and the limit block 9 is reset to the initial state under the action of the spring.

[0027] The limit block 9 of the present invention is suspended below the driving block 8 through a spring 10 and a second guide rod 11. The spring 10 is initially in a slightly compressed state to ensure the relative position between the two. The limit block 9 can reciprocate back and forth with the driving block 8.

[0028] In order to enable the limiting block to better limit the body of the reagent bottle, in this embodiment, the limiting block 9 adopts a contour limiting structure so that the limiting block 9 can better cooperate with the body of the reagent bottle.

[0029] Furthermore, a reset baffle 15 is installed on the driving block 8 , and a reset optical coupler 16 adapted to the reset baffle 15 is installed on the mounting seat 1 , which is used for intelligent control of the travel of the driving block 8 and the limit block 9 .

[0030] like Figure 3 As shown, the present invention also discloses a reagent bottle opening device, including an opening mechanism for opening the reagent bottle; a reagent bottle limiting mechanism, installed on one side of the opening mechanism, for limiting the bottle body of the reagent bottle during the opening process.

[0031] The cover opening mechanism includes a clamping seat 17, a clamping claw 18, a second driving mechanism (not shown) and a third driving mechanism 19; the clamping claw 18 is slidably mounted on the clamping seat 17; the second driving mechanism is used to drive the clamping claw 18 to slide on the clamping seat 17 to provide tension when clamping the reagent bottle, thereby grabbing the bottle cap of the reagent bottle; the third driving mechanism 19 is used to drive the clamping seat 17 to rotate, thereby driving the clamping claw 18 that grabs the bottle cap to perform a rotating cover opening operation.

[0032] Furthermore, a second gear 20 is disposed on the clamping seat 17 ; the second gear 20 and the first gear 7 are meshed with each other.

[0033] When the opening mechanism moves to the bottle cap position, the reagent bottle limiting device moves to the bottle body position of the reagent bottle, and the contoured structure of the limiting block is adapted to the bottle body, which can limit the movement of the reagent bottle; the second driving mechanism provides a tensioning force for the clamping jaws when clamping the reagent bottle, thereby grabbing the bottle cap of the reagent bottle, and the third driving mechanism drives the clamping seat to rotate to open the bottle cap, and the second gear on the clamping seat can drive the first gear on the rotating shaft to rotate, thereby driving the rotating shaft to rotate; the rotation of the rotating shaft can drive the driving block and the limiting block to move downward, thereby causing the bottle body of the reagent bottle to move downward, making it easier for the clamping jaws to open the reagent bottle, and at the same time, enabling the bottle body to be more effectively separated from the bottle cap.

[0034] The present invention drives the reagent bottle limiting mechanism through the clamping seat, so that the clamping seat acts as the driving mechanism of the limiting assembly, which can effectively improve the coordination between the reagent bottle limiting mechanism and the cover opening mechanism, and improve the synergy between the two. It is understandable that in other embodiments, other methods can also be used to drive the limiting assembly.

[0035] The undisclosed parts of the cover opening mechanism in this embodiment are all prior art and will not be introduced in detail here. For details, please refer to the description in patent CN213795143U.

[0036] The present invention also discloses a sample analyzer, comprising the reagent bottle cover opening device shown above.

[0037] The following is a description of the entire process of opening the reagent bottle: (1) The clamping claw of the opening mechanism descends to the top of the reagent bottle and grasps the bottle cap. The lower end surface of the limit block just contacts the body of the reagent bottle. At the same time, the limit contour structure of the limit block is already on both sides of the reagent bottle. At this time, the rotational freedom of the reagent bottle has been restricted; (2) The clamping seat drives the clamping claw to rotate and open the cover, and the rotating shaft also starts to rotate following the gear on the clamping seat. Through the rotation of the rotating shaft, the driving block drives the limit block to move downward along the first guide rod. The limit block will always generate a downward thrust on the body of the reagent bottle during the process of opening the cover, thereby preventing the bottle body from rising with the bottle cap and being unable to detach.

[0038] In order to avoid the mismatch between the rising speed of the bottle cap and the falling speed of the limit block in the above process, a spring soft connection is used between the limit block and the drive block. In this way, it is only necessary to control the falling speed of the limit block to be slightly greater than the lifting speed of the opening mechanism to maintain the downward thrust on the reagent bottle during the opening process. At the same time, the compression soft connection of the spring can also effectively avoid the large impact thrust caused by the large speed deviation between the two.

[0039] It should be noted that the rotation direction of the rotating shaft is exactly opposite to the opening rotation direction of the opening mechanism. Under normal circumstances, the bottle cap of the reagent bottle is a right-handed thread, so the opening rotation direction of the opening mechanism is counterclockwise, so the rotation direction of the rotating shaft is clockwise, and in order to realize the descending movement of the driving block, obviously, the thread or screw nut on the driving block that matches the rotating shaft must be left-handed.

[0040] The above are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of the claims of the present invention to be approved.

Claims

1. A reagent bottle limiting mechanism, characterized in that: include: A limiting component, used to limit the position of the reagent bottle; A guide component, used to limit the moving direction of the limit component; The driving assembly is used to drive the limiting assembly to move on the guiding assembly.

2. A reagent bottle limiting mechanism according to claim 1, characterized in that: The limiting component comprises: A limiting block is used to limit the position of the reagent bottle; The driving block is connected to the limit block on one side and to the driving assembly on the other side, and is used to drive the limit block to move on the guide assembly.

3. A reagent bottle limiting mechanism according to claim 2, characterized in that: The driving block and the limiting block are connected via an elastic mechanism.

4. A reagent bottle limiting mechanism according to claim 3, characterized in that: The elastic mechanism includes a spring and a second guide rod; the second guide rod includes a second rod portion and a second blocking portion; one end of the second rod portion is fixed on the driving block, and the other end slides through the limit block and is connected to the second blocking portion; the spring is sleeved on the second rod portion between the driving block and the limit block.

5. A reagent bottle limiting mechanism according to claim 1, characterized in that: The guide assembly comprises: A first guide rod, used for slidingly installing the limiting assembly; A mounting seat, used for mounting a first guide rod, wherein the first guide rod is mounted on both sides of the mounting seat; The first guide rod comprises a first rod portion and a first blocking portion; one end of the first rod portion is fixed on the mounting seat, and the other end slides through the limiting assembly and is fixed on the first blocking portion.

6. A reagent bottle limiting mechanism according to claim 5, characterized in that: The drive assembly comprises: A rotating shaft, one end of which is rotatably mounted in the mounting seat, and the other end of which is threadedly connected to the limit assembly; The first driving mechanism is used to drive the rotating shaft to rotate, thereby driving the limiting assembly to slide on the first guide rod.

7. A reagent bottle opening device, characterized in that: include: An opening mechanism, used for opening the reagent bottle; The reagent bottle limiting mechanism described in any one of claim 6 is installed on one side of the cover opening mechanism and is used to limit the bottle body of the reagent bottle during the cover opening process.

8. A reagent bottle opening device according to claim 7, characterized in that: The cover opening mechanism comprises: A clamping claw is used to open the cap of the reagent bottle; A clamping seat for slidingly mounting the clamping jaws; A second driving mechanism is used to drive the clamping claw to slide on the clamping seat; The third driving mechanism is used to drive the clamping seat to rotate, thereby driving the clamping claw to rotate.

9. A reagent bottle opening device according to claim 8, characterized in that: The clamping seat and the rotating shaft are meshed with each other through gears to drive the rotating shaft to rotate.

10. A sample analyzer, characterized in that: A reagent bottle opening device comprising the device described in any one of claims 7 to 9.

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