Cap removal device, sample analyzer, and cap removal control method

Abstract

The present application discloses a cap removal device, a sample analyzer, and a cap removal control method. The cap removal device acts on a test tube assembly, which includes a test tube and a test tube cap for fitting the test tube, wherein the cap removal device includes a clamping assembly, a top tube assembly, and a cap removal assembly. The clamping assembly is used to clamp the test tube, the top tube assembly is arranged on one side of the clamping assembly, the top tube assembly is used to abut the test tube, and the cap removal assembly is arranged on the side of the clamping assembly away from the top tube assembly, and the cap removal assembly is used to remove the test tube cap from the test tube or fit the test tube cap on the test tube. Thus, the test tube assembly is fixed by the clamping assembly and the top tube assembly, and the test tube cap is removed from the test tube or fits the test tube cap on the test tube by the cap removal assembly, thereby realizing automatic separation of the test tube and the test tube cap, which is convenient for testing sample specimens.

Description

Technical Field

[0001] The present application relates to the field of medical machinery, and in particular to a cap removal device, a sample analyzer, and a cap removal control method. Background Art

[0002] Test specimens collected from patients in hospitals are usually stored in blood collection tubes, which are storage containers consisting of a detachable test tube cap and a test tube, and are widely used in the field of in vitro diagnosis.

[0003] After the sample specimens are collected, they need to be tested and analyzed by the testing and analysis equipment. The test tubes need to be uncapped before entering the testing and analysis instrument. Manual opening of the cap is inefficient and may contaminate the sample specimens, leading to inaccurate test results and other hazards. Summary of the Invention

[0004] The main purpose of this application is to provide a cap removal device, a sample analyzer and a cap removal control method, aiming to solve the above-mentioned technical problems existing in the prior art.

[0005] To address the above-mentioned issues, the present application provides a cap removal device, which acts on a test tube assembly, the test tube assembly comprising a test tube and a test tube cap for fitting over the test tube. The cap removal device comprises a clamping assembly, a tube-lifting assembly, and a cap removal assembly. The clamping assembly is used to clamp the test tube, the tube-lifting assembly is disposed on one side of the clamping assembly, the tube-lifting assembly is used to abut against the test tube, and the cap removal assembly is disposed on the side of the clamping assembly facing away from the tube-lifting assembly. The cap removal assembly is used to remove the test tube cap from the test tube or fit the test tube cap over the test tube.

[0006] To address the above-mentioned issues, the present application provides a sample analyzer comprising: a test tube assembly and the aforementioned cap removal assembly. The test tube assembly comprises a test tube and a test tube cap for fitting over the test tube, and the cap removal device is used to remove the test tube cap from the test tube or fit the test tube cap over the test tube.

[0007] To solve the above problems, the present application provides a cap removal control method, which includes: providing the test tube assembly, placing the test tube assembly in the clamping assembly so that the clamping assembly clamps the test tube, controlling the top tube assembly to abut against the test tube, and controlling the cap removal assembly to remove the test tube cap from the test tube or to put the test tube cap on the test tube.

[0008] Compared with the prior art, the cap removal device provided in the present application acts on a test tube assembly, which includes a test tube and a test tube cap for fitting onto the test tube, wherein the cap removal device includes a clamping assembly, a push tube assembly, and a cap removal assembly. The clamping assembly is used to clamp the test tube, the push tube assembly is arranged on one side of the clamping assembly, the push tube assembly is used to abut the test tube, the cap removal assembly is arranged on the side of the clamping assembly away from the push tube assembly, and the cap removal assembly is used to detach the test tube cap from the test tube or fit the test tube cap onto the test tube. Thus, the test tube assembly is fixed by the clamping assembly and the push tube assembly, and the test tube cap is detached from the test tube or fit onto the test tube by the cap removal assembly, thereby achieving automated separation of the test tube and the test tube cap, making it easier to detect sample specimens. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0010] Figure 1 This is a schematic structural diagram of an embodiment of a cap removal device provided by the present application;

[0011] Figure 2 is an exploded schematic diagram of the pipe jacking assembly provided in this application;

[0012] Figure 3 is an exploded schematic diagram of the cap removal assembly provided by the present application;

[0013] Figure 4 is an exploded schematic diagram of the fork cap assembly provided by the present application;

[0014] Figure 5 It is an exploded schematic diagram of the fork claw and fork cap slider provided by the present application;

[0015] Figure 6 This is a flow chart of an embodiment of the cap removal control method provided in the present application. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some, rather than all, structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0017] The terms "first," "second," and "third" in this application are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of such features. In the description of this application, "multiple" means at least two, for example, two, three, etc., unless otherwise specifically defined. All directional indications in the embodiments of this application (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications also change accordingly. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products, or devices.

[0018] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0019] See also Figure 1 , Figure 1 It is a structural schematic diagram of an embodiment of the cap removal device provided in this application.

[0020] The cap removal device 1 provided in the present application acts on a test tube assembly 40 , which includes a test tube 41 and a test tube cap 42 for sleeved on the test tube 41 , wherein the cap removal device 1 includes a clamping assembly 30 , a tube pushing assembly 20 and a cap removal assembly 10 .

[0021] The clamping assembly 30 is used to clamp the test tube 41, the top tube assembly 20 is arranged on one side of the clamping assembly 30, the top tube assembly 20 is used to abut the test tube 41, and the cap removal assembly 10 is arranged on the side of the clamping assembly 30 away from the top tube assembly 20, and the cap removal assembly 10 is used to remove the test tube cap 42 from the test tube 41 or put the test tube cap 42 on the test tube 41.

[0022] Thus, the test tube assembly 40 is fixed by the clamping assembly 30 and the top tube assembly 20, and the test tube cap 42 is separated from the test tube 41 or the test tube cap 42 is put on the test tube 41 through the cap removal assembly 10, thereby realizing the automatic separation of the test tube 41 and the test tube cap 42, which is convenient for the detection of the sample specimen.

[0023] The cap removal device 1 may further include a base plate 50. The clamping assembly 30, the top tube assembly 20, and the cap removal assembly 10 may all be disposed on the base plate 50. The test tube assembly 40, the clamping assembly 30, and the cap removal assembly 10 may be fixed to the base plate 50 by screws, welding, or snap fasteners.

[0024] The clamping assembly 30 includes a test tube rack 31 and a top tube support plate 32. The test tube rack 31 has a test tube slot 311 in which the test tube 41 is placed. The top tube support plate 32 is disposed on the side of the test tube rack 31 facing away from the top tube assembly 20 and abuts against the test tube rack 31.

[0025] The test tube rack 31 can be provided with a plurality of test tube slots 311, each of which can accommodate a test tube 41. The height of the test tube 41 is greater than the depth of the test tube slots 311, so that each test tube 41 is partially positioned within the test tube slot 311, with the remaining portion protruding from the test tube slot 311. The test tube cap 42 is fitted over the end of the test tube 41 protruding from the test tube slot 311. The test tube slots 311 can be open slots, with the openings of the test tube slots 311 exposing the side surfaces of the test tube 41 proximal to the push tube assembly 20. The push tube assembly 20 abuts against the side surfaces of the test tube 41 exposed by the openings of the test tube slots 311 to secure the test tube 41 within the test tube rack 31 and simultaneously increase the pressure between the test tube rack 31 and the push tube support plate 32, thereby securing the test tube rack 31 and the test tube 41 within the test tube rack 31 via the push tube assembly 20 and the push tube support plate 32.

[0026] Specifically, see Figure 2 , Figure 2 It is an exploded schematic diagram of the jacking pipe assembly 20 provided in this application.

[0027] The pipe jacking assembly 20 includes a pipe jacking bracket 21, a pipe jacking sliding assembly 22, and a pipe jacking head 23. The pipe jacking bracket 21 forms a pipe jacking accommodating space 211. The pipe jacking sliding assembly 22 is disposed within the pipe jacking accommodating space 211 and is connected to the pipe jacking bracket 21. The pipe jacking head 23 is connected to the pipe jacking sliding assembly 22, which controls whether the pipe jacking head 23 abuts against or moves away from the test tube 41.

[0028] The pipe jacking support 21 can be U-shaped and can specifically be composed of two oppositely disposed side panels and a top panel. The top panel connects the two side panels and cooperates with the top panel and the two side panels to form a pipe accommodating space 211. In one embodiment, the pipe jacking sliding assembly 22 can be connected to the side panels of the pipe jacking support 21. In this embodiment, the pipe jacking sliding assembly 22 is connected to the top panel of the pipe jacking support 21.

[0029] Specifically, see Figure 2The jacking slide assembly 22 includes a jacking rail assembly 221 and a jacking drive assembly 222. The jacking rail assembly 221 is disposed on the jacking support 21, and the jacking head 23 is connected to the jacking rail assembly 221. The jacking drive assembly 222 is disposed on the jacking support 21 and connected to the jacking rail assembly 221. The jacking drive assembly 222 is used to drive the jacking head 23 to abut against or away from the test tube 41 via the jacking rail assembly 221.

[0030] The pipe jacking drive assembly 222 includes a pipe jacking drive bracket 2222 and a pipe jacking drive member 2221. The pipe jacking drive bracket 2222 is disposed on the pipe jacking bracket 21 and is provided with an assembly hole 2223. The pipe jacking drive member 2221 is disposed on the pipe jacking drive bracket 2222 and is connected to the pipe jacking slide assembly 221 via the assembly hole 2223. Specifically, the pipe jacking drive bracket 2222 can be fixed to the pipe jacking bracket 21 by screws or other means, or the pipe jacking drive bracket 2222 can be integrally formed with the pipe jacking bracket 21. The pipe jacking drive member 2221 can be a screw motor. The pipe jacking drive member 2221 is fixed to the pipe jacking drive bracket 2222 and is connected to the pipe jacking slide assembly 221 via the assembly hole 2223.

[0031] The pipe jacking rail assembly 221 includes a pipe jacking rail 2212 and a sliding member 2211. The pipe jacking rail 2212 is disposed on the pipe jacking support 21, and the sliding member 2211 is disposed on the pipe jacking rail 2212. The sliding member 2211 is respectively connected to the pipe jacking head 23 and the pipe jacking drive assembly 222. The sliding member 2211 is configured to slide in the extension direction of the pipe jacking rail 2212. Specifically, the pipe jacking rail 2212 can be disposed on the top plate of the pipe jacking support 21, with the pipe jacking extending in the direction toward the test tube 41. The sliding member 2211 can be respectively connected to the pipe jacking head 23 and the pipe jacking drive assembly 2221. Therefore, in this embodiment, the pipe jacking drive assembly 222 can drive the sliding member 2211 to slide in the extension direction of the pipe jacking rail 2212, thereby driving the pipe jacking head 23 connected to the sliding member 2211 to approach and abut the test tube 41, or to move the pipe jacking head 23 away from the test tube 41.

[0032] Furthermore, the sliding member 2211 may further include a first pipe jacking slider 22111 and a second pipe jacking slider 22112. The first pipe jacking slider 22111 is disposed on the pipe jacking slide rail 2212. The second pipe jacking slider 22112 is disposed on the first pipe jacking slider 22111 and is respectively connected to the pipe jacking head 23 and the pipe jacking drive assembly 222. The first pipe jacking slider 22111 may be slidably connected to the pipe jacking slide rail 2212 by a snap-fit ​​connection or other means, and the first pipe jacking slider 22111 can slide in the direction in which the pipe jacking slide rail 2212 extends. The second tube jacking slider 22112 and the first tube jacking slider 22111 can be integrally formed, or they can be fixedly connected. For example, the second tube jacking slider 22112 can be fixedly connected to the first tube jacking slider 22111 by screws, welding, or snap fastening. The second tube jacking slider 22112 and the first tube jacking slider 22111 can slide synchronously along the extension direction of the tube jacking rail 2212. In one embodiment, the tube jacking drive assembly 222 can be connected to the first tube jacking slider 22111, that is, the tube jacking drive member 2221 can be connected to the first tube jacking slider 22111, so as to drive the first tube jacking slider 22111 to cause the second tube jacking slider 22112 to slide along the extension direction of the tube jacking rail 2212, thereby causing the tube jacking head 23 to abut or move away from the test tube 41. In another embodiment, the pipe jacking drive assembly 222 can be connected to the second pipe jacking slider 22112, that is, the pipe jacking drive member 2221 can be connected to the second pipe jacking slider 22112, so as to drive the second pipe jacking slider 22112 to drive the first pipe jacking slider 22111 to slide along the extension direction of the pipe jacking slide rail 2212, thereby driving the pipe jacking head 23 to abut against or move away from the test tube 41. The sliding member 2211 can be provided with a transition hole 27, which can be used to accommodate a transition column 25, so as to connect the pipe jacking head 23 via the transition column 25.

[0033] Specifically, see Figure 2 The pipe jacking assembly 20 includes a transition post 25, which is disposed through a transition hole 27 and exposed on both sides of the slider 2211. One end of the transition post 25 is connected to the pipe jacking head 23. The transition hole 27 can be provided on the second pipe jacking slider 22112. The transition post 25 is disposed through the transition hole 27 and exposed on both sides of the second pipe jacking slider 22112. The transition post 25 and the pipe jacking head 23 can be detachably connected, allowing the pipe jacking assembly 20 to use pipe jacking heads 23 of different sizes to abut test tubes 41 of different sizes.

[0034] A jacking groove is provided on the side of the jacking head 23 facing away from the jacking sliding assembly 22. The diameter of the jacking groove is larger than the diameter of the test tube 41, and the jacking head 23 abuts the test tube 41 through the jacking groove. The diameter of the jacking groove can be slightly larger than the diameter of the test tube 41. The curved surface of the jacking head 23 forming the jacking groove can be a cylindrical surface, and the circumferential curve of the cylindrical surface is smaller than a fan-shaped curve with a central angle less than 90°. When the test tube groove 311 is an open groove, the opening of the test tube groove 311 exposes the side surface of the test tube 41 near the jacking assembly 20. The jacking head 23 abuts the side surface of the test tube 41 exposed by the opening of the test tube groove 311 to secure the test tube 41 in the test tube rack 31, thereby achieving the fixation of the test tube rack 31 and the test tube 41 located in the test tube rack 31 through the jacking assembly 20 and the jacking support plate 32.

[0035] The pipe jacking assembly 20 includes a positioning retaining ring 26. The positioning retaining ring 26 is disposed on the side of the slider 2211 facing away from the pipe jacking head 23 and is sleeved onto the end of the transition column 25 away from the pipe jacking head 23. Specifically, the positioning retaining ring 26 can be disposed on the side of the second pipe jacking slider 22112 facing away from the pipe jacking head 23 and arranged around the transition hole 27. The positioning retaining ring 26 can be an open retaining ring. In this embodiment, the positioning retaining ring 26 is sleeved onto the end of the transition column 25 away from the pipe jacking head 23 to secure the transition column 25 in the transition hole 27. Furthermore, a retaining ring groove 251 is defined on the end of the transition column 25 away from the pipe jacking head 23. The positioning retaining ring 26 is sleeved onto the transition column 25 through the retaining ring groove 251, and the positioning retaining ring 26 and the retaining ring groove 251 cooperate to secure the transition column 25 in the transition hole 27.

[0036] The pipe jacking assembly 20 includes a pipe jacking spring 24. The pipe jacking spring 24 is disposed between the pipe jacking head 23 and the second pipe jacking slider 22112 and is sleeved onto a transition column 25. The pipe jacking spring 24 can be in a compressed state, where it can abut both the second pipe jacking slider 22112 and the pipe jacking head 23. In this embodiment, the pipe jacking drive 2221 can control the pipe jacking head 23 to move in the direction of the extension of the pipe jacking rail 2212 via the first and second pipe jacking sliders 22111 and 22112, thereby causing the pipe jacking head 23 to abut or move away from the test tube 41. After the pipe jacking head 23 abuts the test tube 41, the pipe jacking drive 2221 can continue to apply thrust to move the transition column 25 within the transition hole 27 of the second pipe jacking slider 22112, thereby compressing the pipe jacking spring 24 and increasing the pressure between the pipe jacking head 23 and the test tube 41.

[0037] In one embodiment, there may be two transition holes 27 disposed side by side on the second jacking slide 22112. There may be two transition posts 25, each of which is disposed in parallel in the two transition holes 27 of the second jacking slide 22112. Both transition posts 25 are provided with a retaining ring groove 251. There may be two positioning retaining rings 26, each disposed in the retaining ring grooves 251 of the two transition posts 25. This allows the ends of the two transition posts 25 provided with the retaining ring grooves 251 to be fixedly disposed within the two transition holes 27 by the positioning retaining rings 26. There may also be two jacking springs 24, each sleeved on the two transition posts 25, and simultaneously abutting the second jacking slide 22112 and the jacking head 23.

[0038] Therefore, the top tube assembly 20 provided in the present application can abut the side surface of the portion of the test tube 41 exposed through the opening of the test tube groove 311 to fix the test tube 41 in the test tube rack 31, and at the same time increase the pressure between the test tube rack 31 and the top tube support plate 32, thereby achieving the fixation of the test tube rack 31 and the test tube 41 located in the test tube rack 31 through the top tube assembly 20 and the top tube support plate 32. After the test tube is fixed, the cap removal assembly 10 can be controlled to remove the test tube cap 42 from the test tube 41, or to put the test tube cap 42 on the test tube 41.

[0039] Specifically, see Figure 1 The cap removal assembly 10 includes a fork cap assembly 100 and a cap removal assembly bracket 200. The fork cap assembly 100 is disposed on the cap removal assembly bracket 200. The fork cap assembly 100 is provided with a fork claw 110, and the fork claw 110 is provided with a cap removal hole (not shown). The size of the cap removal hole is larger than the outer circumferential size of the test tube 41 and smaller than the outer circumferential size of the test tube cap 42. The fork claw 110 is provided on the outer circumference of the test tube 41 through the cap removal hole. The cap removal assembly 10 is used to control the fork claw 110 to move from a first position to a second position to remove the test tube cap 42 from the test tube 41.

[0040] The first position may be when the fork claw 110 is positioned on the periphery of the portion of the test tube 41 where the test tube cap 42 is not fitted. After the fork claw 110 is positioned on the periphery of the test tube 41 through the cap removal hole, the cap removal assembly 10 controls the fork claw 110 to move along the extension direction of the test tube 41 so that the fork claw 110 gradually approaches and abuts against the test tube cap 42. The fork claw 110 continues to move along the extension direction of the test tube 41 until the test tube cap 42 is detached from the test tube 41. The second position may be any position where the fork claw 110 remains after the test tube cap 42 is detached from the test tube 41.

[0041] Therefore, after the test tube 41 is fixed by the top tube assembly 20 and the clamping assembly 30, the decapping device 1 provided in the present application controls the movement of the fork claw 110 so that the fork claw 110 abuts against the test tube cap 42, thereby allowing the test tube cap 42 to be detached from the test tube 41, thereby realizing automatic separation of the test tube 41 and the test tube cap 42, thereby facilitating the detection of sample specimens.

[0042] See also Figure 3 , Figure 3 It is an exploded schematic diagram of the cap removal assembly 10 provided in the present application.

[0043] The cap removal assembly 10 may include a first slide rail assembly 400 and a first drive assembly 300 .

[0044] The first slide rail assembly 400 can be arranged on the cap removal assembly bracket 200, and the fork cap assembly 100 can be arranged on the first slide rail assembly 400. The first slide rail assembly 400 can include a first slide rail 410 and a first slider 420, and the first slide rail 410 can be arranged on the cap removal assembly bracket 200. The first slide rail 410 can be fixed to the cap removal assembly bracket 200 by screws. The extension direction of the first slide rail 410 can be the same as the extension direction of the test tube 41. For example, when the test tube 41 is placed on the base plate 50 and is perpendicular to the base plate 50, the extension direction of the first slide rail 410 is also perpendicular to the base plate 50. The first slider 420 is arranged on the first slide rail 410, and the fork cap assembly 100 is arranged on the first slider 420. The first slider 420 can slide back and forth in the extension direction of the first slide rail 410. The fork cap assembly 100 can be fixed on the first slider 420 by screws. The fork cap assembly 100 can slide in the extension direction of the first slide rail 410 along with the first slider 420, so that the fork claw 110 can move from the first position to the second position, thereby detaching the test tube cap 42 from the test tube 41.

[0045] The first drive assembly 300 can be disposed on the decapping assembly bracket 200 and is used to drive the fork cap assembly 100 to move on the first slide rail 410. The first drive assembly 300 can include a first drive bracket 320 and a first drive member 310. The first drive bracket 320 can be disposed on the decapping assembly bracket 200. For example, the first drive bracket 320 can be fixed to the decapping assembly bracket 200 via screws. In other embodiments, the first drive bracket 320 can be welded or integrally formed with the decapping assembly bracket 200. The first drive bracket 320 can be provided with a first avoidance hole 321. The first drive member 310 can be fixed to the first drive bracket 320 and connected to the fork cap assembly 100 via the first avoidance hole 321. The first drive member 310 can be a screw motor that drives the fork cap assembly 100 to move in the direction of the first slide rail 410 via the first slider 420, thereby moving the fork claw 110 from the first position to the second position.

[0046] See also Figure 3 and 4 , Figure 4 It is an exploded schematic diagram of the fork cap assembly 100 provided in this application.

[0047] Furthermore, the fork cap assembly 100 may include a fork cap assembly bracket 120 and a fork cap slider assembly 130 .

[0048] The fork cap slider assembly 130 may be disposed on the fork cap assembly bracket 120 . The fork cap assembly bracket 120 is disposed on the first slide rail assembly 400 , specifically, the fork cap assembly bracket 120 is disposed on the first slider 420 .

[0049] The first drive assembly 300 is disposed on the side of the fork cap assembly bracket 120 facing away from the fork cap slider assembly 130. The first drive assembly 300 is used to drive the fork cap assembly bracket 120 to slide via the first slide rail assembly 400. Thus, the first drive assembly 300 can drive the fork cap assembly 100 to slide via the first slide rail assembly 400. Specifically, the first drive bracket 320 can be located on the side of the fork cap assembly bracket 120 facing away from the fork cap slider assembly 130. The first drive member 310 is disposed on the side of the first drive bracket 320 facing away from the fork cap assembly bracket 120. The first drive member 310 is connected to the fork cap assembly bracket 120 via a first avoidance hole 321.

[0050] Continue to see Figure 4 The fork cap slider assembly 130 includes a second slide rail assembly 132 and a fork cap slider 131 .

[0051] The second slide rail assembly 132 may include a second slider 1322 and a second slide rail 1321. The second slide rail 1321 is disposed on the fork cap assembly bracket 120. The second slider 1322 is disposed on the second slide rail 1321. The second slider 1322 can move along the extension direction of the second slide rail 1321. The fork cap slider 131 is disposed on the second slider 1322. The fork cap slider 131 can move in the extension direction of the second slide rail 1321 via the second slider 1322. The extension direction of the second slide rail 1321 may be perpendicular to the extension direction of the first slide rail 410, so that the fork cap assembly 100 can move the fork claw 110 in both horizontal and vertical directions.

[0052] See also Figure 5 , Figure 5 It is an exploded schematic diagram of the fork claw and fork cap slider provided in this application.

[0053] The fork cap slider 131 may be provided with a sliding hole 1313, which may be located at one end of the fork cap slider 131. The sliding hole 1313 may be a through hole or a blind hole, and has both a lengthwise and a widthwise direction. The sliding hole 1313 is used to accommodate the rotating member 150, which can move back and forth in the lengthwise direction of the sliding hole 1313. The fork cap slider 131 includes a first support arm 1311 and a second support arm 1312, which are arranged opposite each other. The first support arm 1311 and the second support arm 1312 may extend in the same direction as the second slide rail 1321. The gap between the first support arm 1311 and the second support arm 1312 may accommodate the fork claw 110, thereby securing the fork claw 110 between the first support arm 1311 and the second support arm 1312.

[0054] The fork claw 110 may include a first claw arm 115 and a second claw arm 116 disposed opposite each other. The first claw arm 115 and the second claw arm 116 are partially disposed between the first support arm 1311 and the second support arm 1312. Specifically, the first claw arm 115 may include a first connecting claw arm 1152 and a first clamping claw arm 1151. The first connecting claw arm 1152 may be located between the first support arm 1311 and the second support arm 1312. The first clamping claw arm 1151 may have a concave shape. The second claw arm 116 may include a second connecting claw arm 1162 and a second clamping claw arm 1161. The second connecting claw arm 1162 may be disposed between the first support arm 1311 and the second support arm 1312. The second clamping claw arm 1161 may have a concave shape. The first clamping claw arm 1151 and the second clamping claw arm 1161 may cooperate to form the cap removal hole 111. The shape of the decapping hole 111 can be adapted to the shape of the test tube 41. For example, if the test tube 41 is cylindrical, the decapping hole 111 can be a circular through-hole. The diameter of the circular surface of the decapping hole 111 can be slightly larger than the diameter of the circular surface of the test tube 41, so that the fork 110 can be mounted on the outer circumference of the test tube 41 through the decapping hole 111 and can move back and forth in the extending direction of the test tube 41 through the decapping hole 111. The test tube cap 42 is mounted on the test tube 41, and the outer circumferential dimension of the decapping hole 111 can be smaller than the outer circumferential dimension of the test tube cap 42. In other words, the diameter of the circular surface of the decapping hole 111 can be slightly smaller than the diameter of the circular surface of the test tube cap 42. When the fork 110 moves from the first position to the second position, the fork 110 can abut the test tube cap 42 to remove the test tube cap 42 from the test tube 41, and the test tube cap 42 removed from the test tube 41 can be positioned on the fork 110.

[0055] The fork 110 is provided with a receiving hole 112 along the axis 114 of the cap removal hole 111. The size of the receiving hole 112 is larger than the outer circumferential size of the test tube cap 42. A supporting platform 113 is formed at the connection between the cap removal hole 111 and the receiving hole 112. The supporting platform 113 is used to support the test tube cap 42. The shape of the receiving hole 112 can be adapted to the shape of the test tube cap 42. When the test tube cap 42 is cylindrical, the shape of the receiving hole 112 can be a circular through hole. The diameter of the circular surface of the receiving hole 112 can be larger than the end surface diameter of the test tube cap 42. The axis 114 of the receiving hole 112 can be the same as the axis 114 of the cap removal hole 111. The supporting platform 113 can be arranged perpendicular to the axis 114 of the receiving hole 112 or the cap removal hole 111 so that the test tube cap 42 can be stably placed in the receiving hole 112. When the fork 110 moves from the first position to the second position, the supporting platform 113 can abut the test tube cap 42 to separate the test tube cap 42 from the test tube 41 . The test tube cap 42 separated from the test tube 41 can be located in the accommodating hole 112 and supported by the supporting platform 113 .

[0056] The fork cap assembly 100 includes a first compression spring 134 and a second compression spring 135. The first compression spring 134 is disposed between the first support arm 1311 and the first claw arm 115, while the second compression spring 135 is disposed between the second support arm 1312 and the second claw arm 116. Specifically, the first compression spring 134 can be disposed between the first support arm 1311 and the first connecting claw arm 1152, while the second compression spring 135 can be disposed between the second support arm 1312 and the second connecting claw arm 1162. The first and second compression springs 134, 135 can respectively apply elastic forces to the first and second connecting claw arms 1152, 1162, causing them to abut against each other in their natural state. The first and second compression springs 134, 135 can also be further compressed to expand the size of the cap removal hole 111 and the receiving hole 112. For example, when the outer circumferential dimension of the test tube 41 is larger than the dimension of the uncapping hole 111 in its natural state, forces in opposite directions can be applied to the first claw arm 115 and the second claw arm 116, respectively, to compress the first compression spring 134 and the second compression spring 135, thereby increasing the distance between the first claw arm 115 and the second claw arm 116, thereby expanding the dimensions of the uncapping hole 111 and the receiving hole 112. When the test tube cap 42 is removed from the test tube 41 and positioned in the receiving hole 112, the first compression spring 134 and the second compression spring 135 can apply elastic forces to the first claw arm 115 and the second claw arm 116, respectively, causing the first connecting claw arm 1152 and the second connecting claw arm 1162 to abut against each other, thereby reducing the dimension of the receiving hole 112, thereby securing the test tube cap 42 in the receiving hole 112 via the first clamping claw arm 1151 and the second clamping claw arm 1161. Therefore, in this embodiment, the fork claws 110 can be adapted to test tubes 41 of different sizes to separate the test tube caps 42 from the test tubes 41 .

[0057] The first support arm 1311 is provided with a first guide hole 13111, the first claw arm 115 is provided with a second guide hole (not shown), the second support arm 1312 is provided with a third guide hole 13121, and the second claw arm 116 is provided with a fourth guide hole 1163. The central axes of the first guide hole 13111, the second guide hole 13121, and the fourth guide hole 1163 coincide with each other. The fork cap slider assembly 130 includes a guide shaft 133, which is disposed in the first guide hole 13111, the second guide hole 13121, and the fourth guide hole 1163 to secure the fork 110 to the fork cap slider 131. Specifically, the second guide hole can be provided on the first connecting claw arm 1152, and the fourth guide hole 1163 can be provided on the second connecting claw arm 1162. The guide shaft 133 can be simultaneously passed through the first guide hole 13111, the second guide hole, the third guide hole 13121, and the fourth guide hole 1163, and the first compression spring 134 and the second compression spring 135 can be sleeved on the outer circumference of the guide shaft 133. In one embodiment, there can be two first guide holes 13111 arranged side by side on the first support arm 1311, two second guide holes arranged side by side on the first connecting claw arm 1152, two third guide holes 13121 arranged side by side on the second support arm 1312, and two fourth guide holes 1163 arranged side by side on the second connecting claw arm 1162. There can be two guide shafts 133, each of which passes through the coaxially arranged first guide hole 13111, second guide hole 13121, and fourth guide hole 1163, respectively. There can be two first compression springs 134 and second compression springs 135, each of which is sleeved on the two guide shafts 133.

[0058] See also Figure 4Furthermore, the fork cap assembly 100 may include a cap support 140, which is disposed on the side of the fork cap slider assembly 130 facing away from the fork cap assembly support 120. The projection of the cap support 140 on a plane perpendicular to the axis 114 of the cap removal hole 111 on the fork claw 110 is at least partially located within the cap removal hole 111. The cap support 140 is used to fit the test tube cap 42 onto the test tube 41. Specifically, the cap support 140 may be disposed on the side of the fork cap slider 131 facing away from the fork cap assembly support 120. The cap support 140 may be Z-shaped, with one end of the cap support 140 connected to the fork cap slider 131 and the other end comprising a cap portion 141. The cap portion 141 may be located in the direction of the axis 114 of the cap removal hole 111. The orthographic projection of the cap portion 141 on the fork cap slider 131 may be located within the cap removal hole 111, and the cap portion 141 may be disposed perpendicular to the axis 114 of the cap removal hole 111. The cap bracket 140 can move synchronously with the fork claw 110. In this embodiment, the test tube cap 42 can be placed in the receiving hole 112, and the fork claw 110 and the cap bracket 140 can move along the extension direction of the test tube 41 so that the test tube cap 42 located in the receiving hole 112 is placed at the end of the test tube 41. The fork claw 110 and the cap bracket 140 can continue to move along the extension direction of the test tube 41 so that the cap bracket 140 abuts the test tube cap 42, thereby sleeved on the test tube 41.

[0059] The fork cap assembly 100 includes a second driving assembly 160 and a rotating member 150 .

[0060] The second drive assembly 160 can be disposed on the fork cap assembly bracket 120. The rotating member 150 can be disposed within the sliding hole 1313 and connected to the second drive assembly 160. The second drive assembly 160 is configured to drive the rotating member 150 to rotate about the second drive assembly 160, so that the fork cap slider 131 slides in the extending direction of the second slide rail 1321 via the second slider 1322. Specifically, the rotating member 150 can be a bearing, and the rotating member 150 can rotate about its own central axis. The shape of the rotating member 150 can match the sliding hole 1313. For example, the diameter of the rotating member 150 can be the same as the width of the sliding hole 1313. The rotating member 150 can be arranged in the sliding hole 1313, and the rotating member 150 can slide in the sliding hole 1313. Specifically, the rotating member 150 can move back and forth in the length direction of the sliding hole 1313 under the drive of the second driving component 160, so that the fork cap slider 131 can move in the extension direction of the second slide rail 1321, so that the fork cap slider 131 can be close to or away from the test tube 41, and then the fork claw 110 can be arranged on the periphery of the test tube 41 or away from the test tube 41 through the uncapping hole 111.

[0061] The second drive assembly 160 may include a second drive bracket 163, a second drive member 162, and a rotating wheel 161. The second drive bracket 163 is disposed on the fork cap assembly bracket 120. The second drive bracket 163 and the fork cap assembly bracket 120 cooperate to form a fork cap accommodating space 170. The fork cap slider assembly 130 and the cover cap bracket 140 are located within the fork cap accommodating space 170. A second avoidance hole 1631 is defined on the side of the second drive bracket 163 away from the fork cap assembly bracket 120. The second drive member 162 is disposed on the side of the second drive bracket 163 away from the fork cap assembly bracket 120. The rotating wheel 161 is disposed within the fork cap accommodating space 170. One end of the rotating wheel 161 is connected to the second drive member 162 via the second avoidance hole 1631, and the other end is connected to the rotating member 150. Specifically, the second driving member 162 may be a stepping motor, and the rotating wheel 161 is connected to the second driving member 162. The rotating wheel 161 can be rotated around the center of the rotating wheel 161 by the second driving member 162. The side of the rotating wheel 161 facing away from the second driving member 162 is connected to the rotating member 150. The rotating member 150 can be disposed at a position of the rotating wheel 161 away from the center of the rotating wheel 161. The rotating wheel 161 can rotate to drive the rotating member 150 to rotate around the center of the rotating wheel, so that the fork cap slider 131 slides in the extension direction of the second slide rail 1321 via the second slider 1322.

[0062] Therefore, the cap removal device 1 provided in the present application can fix the test tube 41 through the top tube assembly 20 and the clamping assembly 30, and can control the movement of the fork claw 110 to make the fork claw 110 abut against the test tube cap 42 so that the test tube cap 42 is separated from the test tube 41, and can control the movement of the cap bracket 140 to put the test tube cap 42 on the test tube 41 through the cap bracket 140, so as to realize automatic cap removal of the test tube 41.

[0063] The present application also provides a sample analyzer, which includes a test tube assembly and a cap removal device according to any of the above embodiments. The test tube assembly includes a test tube and a test tube cap for fitting onto the test tube. The cap removal device is used to remove the test tube cap from the test tube or fit the test tube cap onto the test tube.

[0064] See also Figure 6 , Figure 6 This is a flow chart of an embodiment of the cap removal control method provided in the present application.

[0065] The present application provides a cap removal control method, which is applied to the cap removal device of any of the above embodiments. The cap removal control method includes the following steps:

[0066] Step S601: Provide a test tube assembly.

[0067] The test tube assembly includes a test tube and a test tube cap for covering the test tube.

[0068] Step S602: placing the test tube assembly in the clamping assembly so that the clamping assembly clamps the test tube.

[0069] The clamping assembly includes a test tube rack and a top tube support plate. The test tube rack is provided with a test tube slot in which the test tube is placed. The top tube support plate is arranged on the side of the test tube rack facing away from the top tube assembly and abuts against the test tube rack.

[0070] The test tube rack may be provided with multiple test tube slots, each of which may accommodate a test tube. The height of the test tubes is greater than the depth of the test tube slots, such that each test tube is partially positioned within the test tube slot and partially protrudes from the slot. The test tube cap is fitted over the end of the test tube protruding from the slot. The test tube slots may be open slots, with the openings of the test tube slots exposing the side surface of the test tube proximal to the push tube assembly, allowing the push tube assembly to pass through the openings of the test tube slots, revealing the portion of the test tube's side surface that is exposed.

[0071] Step S603: Control the jacking pipe assembly to abut against the test tube.

[0072] The controller is used to control the jacking assembly to abut against the test tube. The jacking assembly is arranged on one side of the clamping assembly and is used to abut against the test tube.

[0073] Specifically, the jacking tube assembly is disposed on the side of the test tube rack facing away from the jacking tube support plate. By controlling the jacking tube assembly to abut the side surface of the test tube exposed through the opening of the test tube slot, the test tube is secured in the test tube rack, while simultaneously increasing the pressure between the test tube rack and the jacking tube support plate. Thus, the test tube rack and the test tube within the test tube rack are secured by the jacking tube assembly and the jacking tube support plate. The specific structure of the jacking tube assembly in this embodiment can be the same as that of any of the aforementioned embodiments and will not be further described here.

[0074] Step S604: controlling the capping assembly to remove the test tube cap from the test tube or to put the test tube cap on the test tube.

[0075] The controller controls the cap removal assembly to remove the test tube cap from the test tube or to replace the test tube cap on the test tube. The cap removal assembly can be positioned on the side of the clamping assembly facing away from the tube pusher assembly. After the tube pusher assembly and the clamping assembly secure the test tube, the cap removal assembly can be controlled to remove the test tube cap from the test tube or to replace the test tube cap on the test tube. The specific structure of the cap removal assembly in this embodiment can be the same as that of any of the aforementioned embodiments and will not be further described here.

[0076] Therefore, in this embodiment, the test tube assembly can be fixed by cooperating with the clamping assembly and the top tube assembly, and the test tube cap can be detached from the test tube or put on the test tube by the cap removal assembly, thereby realizing automatic separation of the test tube and the test tube cap, which is convenient for testing the sample specimen.

[0077] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A cap removal device, characterized in that: Acting on a test tube assembly, the test tube assembly includes a test tube and a test tube cap for covering the test tube, including: A clamping assembly, used for clamping the test tube; A jacking tube assembly is provided on one side of the clamping assembly, and the jacking tube assembly is used to abut against the test tube; a cap-removing assembly, disposed on a side of the clamping assembly away from the jacking assembly, and used to remove the test tube cap from the test tube or to put the test tube cap on the test tube; Wherein, the cap removal assembly includes a cap removal assembly bracket and a fork cap assembly, the fork cap assembly is arranged on the cap removal assembly bracket, the fork cap assembly is provided with a fork claw, and the fork claw is provided with a cap removal hole, the fork cap assembly includes: a fork cap assembly bracket, a fork cap slider assembly and a cap bracket, the fork cap slider assembly is arranged on the fork cap assembly bracket, the cap bracket is arranged on the side of the fork cap slider assembly away from the fork cap assembly bracket, and the projection of the cap bracket on the plane where the fork claw is perpendicular to the axis of the cap removal hole is located is at least partially located in the cap removal hole; The radial dimension of the cap-removing hole is larger than the radial dimension of the test tube and smaller than the radial dimension of the test tube cap. The cap-removing assembly is used to control the fork claw to move from a first position to a second position so that the test tube cap is detached from the test tube, wherein, at the first position, the fork claw is arranged on the outer periphery of the test tube, and at the second position, the test tube cap is detached from the test tube. The cap-removing assembly is also used to move from the second position to the first position so that the cap bracket abuts the test tube cap to put the test tube cap on the test tube.

2. The cap removal device according to claim 1, wherein: The clamping assembly comprises: A test tube rack, provided with a test tube slot, wherein the test tube is arranged in the test tube slot; The top tube support plate is arranged on a side of the test tube rack away from the top tube assembly and abuts against the test tube rack.

3. The cap removal device according to claim 1, wherein: The jacking pipe assembly comprises: A jacking pipe support forms a jacking pipe accommodation space; A jacking pipe sliding assembly is disposed in the jacking pipe accommodating space, and the jacking pipe sliding assembly is connected to the jacking pipe support; The jacking head is connected to the jacking sliding assembly, and the jacking sliding assembly controls the jacking head to abut against or stay away from the test tube.

4. The cap removal device according to claim 3, characterized in that: The jacking pipe sliding assembly includes: A jacking rail assembly is provided on the jacking support, and the jacking head is connected to the jacking rail assembly; A pipe jacking drive assembly is provided on the pipe jacking support. The pipe jacking drive assembly is connected to the pipe jacking slide assembly. The pipe jacking drive assembly is used to drive the pipe jacking head to abut against or away from the test tube through the pipe jacking slide assembly.

5. The cap removal device according to claim 4, characterized in that: The jacking pipe sliding assembly includes: A pipe jacking slide rail is provided on the pipe jacking bracket; A sliding member is provided on the jacking rail, the sliding member is respectively connected to the jacking head and the jacking drive assembly, and the sliding member is used to slide in the extension direction of the jacking rail.

6. The cap removal device according to claim 5, characterized in that: The sliding member is provided with a transition hole, and the jacking pipe assembly comprises: A transition column is provided through the transition hole and exposed on both sides of the sliding member, and one end of the transition column is connected to the jacking head; A positioning retaining ring is provided on a side of the sliding member away from the jacking head, and the positioning retaining ring is sleeved on an end of the transition column away from the jacking head; The pipe jacking spring is sleeved on the transition column, and the pipe jacking spring abuts against the pipe jacking head and the sliding member respectively.

7. The cap removal device according to claim 1, wherein: The cap removal assembly comprises: A first slide rail assembly, comprising a first slide rail and a first slider, wherein the first slide rail is arranged on the cap removal assembly bracket, the first slider is arranged on the first slide rail, and the fork cap assembly bracket is arranged on the first slider; The first driving assembly is arranged on a side of the fork cap assembly bracket away from the fork cap slider assembly, and the first driving assembly is used to drive the fork cap assembly bracket to slide through the first slide rail assembly.

8. The cap removal device according to claim 7, characterized in that: The fork cap slider assembly includes: A fork cap slider is provided with a sliding hole; A second slide rail assembly, comprising a second slider and a second slide rail, wherein the second slide rail is arranged on the fork cap assembly bracket, the second slider is arranged on the second slide rail, and the fork cap slider is arranged on the second slider; The fork cap assembly comprises: A second driving assembly is provided on the fork cap assembly bracket; a rotating member disposed in the sliding hole, the rotating member being connected to the second driving assembly; The second driving assembly is used to drive the rotating member to rotate around the second driving assembly, so that the fork cap slider slides in the extension direction of the second slide rail through the second slider.

9. The cap removal device according to claim 8, characterized in that: The second drive assembly includes: A second drive bracket is provided on the fork cap assembly bracket, the second drive bracket and the fork cap assembly bracket cooperate to form a fork cap accommodating space, the fork cap slider assembly and the cover cap bracket are located in the fork cap accommodating space, and a second avoidance hole is provided on a side of the second drive bracket away from the fork cap assembly bracket; A second driving member is provided on a side of the second driving bracket away from the fork cap assembly bracket; A rotating wheel is arranged in the fork cap accommodating space, one end of the rotating wheel is connected to the second driving member through the second avoidance hole, and the other end is connected to the rotating member.

10. The cap removal device according to claim 1, wherein: The fork cap slider of the fork cap slider assembly includes a first support arm and a second support arm that are arranged opposite to each other; The fork claw includes a first claw arm and a second claw arm arranged opposite to each other, the first claw arm and the second claw arm are partially arranged between the first support arm and the second support arm, the first support arm is provided with a first guide hole, the first claw arm is provided with a second guide hole, the second support arm is provided with a third guide hole, and the second claw arm is provided with a fourth guide hole, and the central axes of the first guide hole, the second guide hole, the third guide hole and the fourth guide hole coincide with each other; The fork cap slider assembly includes a guide shaft, which is disposed in the first guide hole, the second guide hole, the third guide hole, and the fourth guide hole to fix the fork claw to the fork cap slider; The fork cap assembly includes a first compression spring and a second compression spring, wherein the first compression spring is disposed between the first support arm and the first claw arm, and the second compression spring is disposed between the second support arm and the second claw arm.

11. A sample analyzer, characterized in that: It comprises a test tube assembly and a cap removal device as described in any one of claims 1 to 10, wherein the test tube assembly comprises a test tube and a test tube cap for sleeved on the test tube, and the cap removal device is used to remove the test tube cap from the test tube or sleeve the test tube cap on the test tube.

12. A method for controlling cap removal, characterized in that: Applied to the decapping device according to any one of claims 1 to 10, the method comprises: providing the test tube assembly; The test tube assembly is arranged in the clamping assembly so that the clamping assembly clamps the test tube; controlling the jacking pipe assembly to abut against the test tube; Controlling the capping assembly to remove the test tube cap from the test tube or to put the test tube cap on the test tube; Wherein, the cap removal assembly includes a cap removal assembly bracket and a fork cap assembly, the fork cap assembly is arranged on the cap removal assembly bracket, the fork cap assembly is provided with a fork claw, and the fork claw is provided with a cap removal hole, the fork cap assembly includes: a fork cap assembly bracket, a fork cap slider assembly and a cap bracket, the fork cap slider assembly is arranged on the fork cap assembly bracket, the cap bracket is arranged on the side of the fork cap slider assembly away from the fork cap assembly bracket, and the projection of the cap bracket on the plane where the fork claw is perpendicular to the axis of the cap removal hole is located is at least partially located in the cap removal hole; The radial dimension of the cap-removing hole is larger than the radial dimension of the test tube and smaller than the radial dimension of the test tube cap. The cap-removing assembly is used to control the fork claw to move from a first position to a second position so that the test tube cap is detached from the test tube, wherein, at the first position, the fork claw is arranged on the outer periphery of the test tube, and at the second position, the test tube cap is detached from the test tube. The cap-removing assembly is also used to move from the second position to the first position so that the cap bracket abuts the test tube cap to put the test tube cap on the test tube.

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