Sample analysis assembly line system and test tube clamping method and device

Abstract

The invention discloses a sample analysis assembly line system and a test tube clamping method and device.The test tube clamping device comprises a first clamping jaw and a second clamping jaw, and the first clamping jaw and the second clamping jaw are matched to be used for clamping a test tube; and the driving mechanism is used for driving the second clamping jaw to rotate when driving the first clamping jaw to rotate. The first clamping jaw drives the second clamping jaw to rotate, so that the stress of the second clamping jaw is the same as that of the first clamping jaw, the two clamping jaws provide equal clamping force for the two sides of a test tube, and the situation that when a spring provides the clamping force for the two clamping jaws, the stress on the two sides of the test tube is not uniform, and consequently the two sides of the test tube are inclined is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a sample analysis pipeline system, a test tube clamping method and a device. Background Art

[0002] In the field of medical testing, with the increase in sample volume, it is a trend for various laboratories to promote laboratory assembly lines for sample testing. As an automated assembly line testing system, automatic opening and capping of test tubes is a necessary operating step. In order to ensure stable operation during the opening and capping process, the test tubes generally need to be clamped and fixed. The existing technology mainly uses springs to provide clamping force, and the springs are set at the clamping claws. Although the test tubes can be clamped, the two springs at the clamping claws may be inconsistent in compression during actual use, causing the test tubes to tilt, which in turn leads to failure in opening or capping. Summary of the invention

[0003] The invention discloses a sample analysis pipeline system, a test tube clamping method and a device, so as to solve the problem that the test tube is easily skewed when being clamped in the prior art.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: A test tube clamping device, comprising: A first clamping jaw and a second clamping jaw, wherein the first clamping jaw cooperates with the second clamping jaw to clamp the test tube; The driving mechanism is used to drive the first clamping jaw to rotate and drive the second clamping jaw to rotate.

[0005] Furthermore, the first clamping jaw and the second clamping jaw are meshed with each other via gears.

[0006] Furthermore, a first elastic member is installed on each of the first clamping jaw and the second clamping jaw to prevent the clamping jaw from making hard contact with the test tube and thus damaging the test tube.

[0007] Furthermore, it also includes a shaft mounting plate; the first clamping jaw and the second clamping jaw are rotatably mounted on the shaft mounting plate through the first shaft and the second shaft respectively; and the end of the first shaft away from the first clamping jaw is transmission-connected to the driving mechanism.

[0008] Furthermore, the driving mechanism comprises: A slider assembly and a linear guide rail, wherein the slider assembly is slidably mounted on the linear guide rail; A transmission member, one end of which is slidably connected to the slider assembly, and the other end of which is fixedly connected to the first rotating shaft; The lead screw motor is used to drive the slider assembly to slide back and forth on the linear guide rail, thereby driving the transmission part to rotate.

[0009] Furthermore, the transmission member is a rod-shaped structure with a slide groove, and the slider assembly is slidably connected in the slide groove through a rotating wheel.

[0010] Furthermore, the slider assembly includes: a first slider and a second slider, the first slider and the second slider are connected by a second elastic member; the first slider is fixedly connected to the output shaft of the screw motor; and the second slider is slidably connected to the slide groove of the transmission member through a rotating wheel.

[0011] Furthermore, the second elastic member includes: The sliding rod comprises a rod portion and a blocking portion, wherein one end of the rod portion is fixed on the first sliding block, and the other end of the rod portion slides through the second sliding block and is fixedly connected to the blocking portion; The spring is sleeved on the rod.

[0012] A sample analysis pipeline system, comprising the test tube clamping device described above, for clamping a test tube that requires uncapping and / or capping operations; A cover opening device, used for opening the cover of the test tube; A capping device, used for capping the test tube; Multiple sample analyzers for testing samples; The assembly line track is used to dispatch the test tubes between the capping device, the capping device and multiple sample analyzers.

[0013] Furthermore, a blocking device is provided on one side of the test tube clamping device for blocking and limiting the test tube; and a detection mechanism is provided for identifying the test tube information.

[0014] Furthermore, the detection mechanism includes: The first detection unit is used to detect the specifications of the test tube and whether the capping or sealing information is required; The second detection unit is used to detect the status of the test tube in place.

[0015] A test tube clamping method comprises the following steps: Move the test tube to the capping device or capping device through the assembly line track; Obtain the diameter information of the test tube that needs to be opened or capped; Calculate the number of running steps of the driving mechanism according to the pipe diameter information; The driving mechanism drives the first clamping jaw to rotate according to the number of running steps; When the first clamping jaw rotates, the second clamping jaw is driven to rotate to clamp the test tube.

[0016] The present invention adopts the above technical solution and has the following advantages: The present invention drives the second clamping jaw to rotate by the first clamping jaw, so that the force applied to the second clamping jaw is the same as that applied to the first clamping jaw, thereby achieving equal clamping force provided by the two clamping jaws on both sides of the test tube, thereby avoiding the occurrence of skewness caused by uneven force applied to both sides of the test tube when the spring provides the clamping force of the two clamping jaws. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the test tube clamping device of the present invention; Figure 2 It is a side view of the test tube clamping device of the present invention; Figure 3 Schematic diagram of the local structure of the sample analysis pipeline system of the present invention Figure 4 It is a schematic diagram of the clamping state of the clamping device of the present invention.

[0018] Figure markings: 1-first clamp; 2-second clamp; 3-test tube; 4-gear; 5-first elastic member; 6-rotating shaft mounting plate; 7-first rotating shaft; 8-second rotating shaft; 9-screw motor; 10-linear guide; 11-transmission member; 12-rotating wheel; 13-first slider; 14-second slider; 15-spring; 16-sliding rod; 17-mounting base; 18-reset optical coupler; 19-optical coupler; 20-blocking device; 21-first detection unit; 22-second detection unit. Implementation

[0019] The technical solutions in the embodiments of the present application are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, 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.

[0020] like Figure 1 As shown, a test tube clamping device includes a first clamping jaw 1 and a second clamping jaw 2. The first clamping jaw 1 and the second clamping jaw 2 cooperate to clamp a test tube 3; a driving mechanism is used to drive the first clamping jaw 1 to rotate and drive the second clamping jaw 2 to rotate.

[0021] It is understandable that in other embodiments, the second clamping jaw 2 and then the first clamping jaw 1 may be driven to rotate by a driving mechanism. The “first and second” here are only for the convenience of writing and do not have any other meanings.

[0022] The present invention drives the second clamping jaw to rotate by the first clamping jaw, so that the force applied to the second clamping jaw is the same as that applied to the first clamping jaw, thereby achieving equal clamping force provided by the two clamping jaws on both sides of the test tube, thereby avoiding the occurrence of skewness caused by uneven force applied to both sides of the test tube when the spring provides the clamping force of the two clamping jaws.

[0023] Furthermore, the first jaw 1 and the second jaw 2 are meshed with each other through the gear 4. When the driving mechanism drives the first jaw 1 to rotate, the gear 4 arranged on the first jaw 1 and the second jaw 2 rotates toward or in the opposite direction, thereby causing the first jaw 1 and the second jaw 2 to rotate toward or in the opposite direction, thereby achieving the clamping or release of the test tube 3.

[0024] The present invention can equally transmit the power generated by the driving mechanism between the first clamping jaw and the second clamping jaw by setting the gears, thereby avoiding the situation where the clamping force of the first clamping jaw and the second clamping jaw provided by the spring causes uneven force.

[0025] Furthermore, the first clamping jaw 1 and the second clamping jaw 2 are both elastic chucks, and the first clamping jaw 1 and the second clamping jaw 2 are both installed with a first elastic member 5, which is used to prevent the clamping jaw from making hard contact with the test tube and damaging the test tube, and can also increase the friction coefficient between the clamping jaw and the test tube to prevent the relative clamping jaw from sliding or being pulled up when the test tube is opened and / or capped. The first elastic member in this embodiment is made of nitrile rubber with a Shore hardness of 85.

[0026] like Figure 1 As shown, the test tube clamping device of the present invention also includes a rotating shaft mounting plate 6; the first clamping jaw 1 and the second clamping jaw 2 are rotatably mounted on the rotating shaft mounting plate 6 through the first rotating shaft 7 and the second rotating shaft 8 respectively; the end of the first rotating shaft 7 away from the first clamping jaw 1 is transmission connected to the driving mechanism.

[0027] The driving mechanism includes a screw motor 9, a slider assembly, a linear guide 10 and a transmission member 11; the slider assembly is slidably installed on the linear guide 10 and can slide back and forth on the linear guide 10; one end of the transmission member 11 is slidably connected to the slider assembly, and the other end is fixedly connected to the first rotating shaft 7; the output shaft of the screw motor 9 is fixed on the slider assembly; the screw motor 9 drives the slider assembly to move back and forth on the linear guide 10, and the transmission member 11 connected to the slider assembly can convert the linear motion of the slider assembly into the rotational motion of the first rotating shaft 7, thereby driving the first clamp to rotate, and finally realizing the clamping or release of the test tube by the first clamp and the second clamp.

[0028] Furthermore, the transmission member 11 is a rod-shaped structure with a slide groove, and the slider assembly is slidably connected in the slide groove through the rotating wheel 12.

[0029] Furthermore, the slider assembly includes a first slider 13 and a second slider 14; the first slider 13 and the second slider 14 are connected by a second elastic member; the first slider 13 is fixedly connected to the output shaft of the screw motor 9; and the second slider 14 is slidably connected to the slide groove of the transmission member 11 through the rotating wheel 12.

[0030] The second elastic member includes a spring 15 and a sliding rod 16; the sliding rod 16 includes a rod portion and a blocking portion; one end of the rod portion is fixed on the first slider 13, and the other end slides through the second slider 14 and is fixedly connected to the blocking portion, and the spring 15 is sleeved on the rod portion; the blocking portion can play a limiting role to prevent the second slider 14 from sliding out of the rod portion due to the elastic force when the spring 15 acts on the second slider 14, making it unable to work.

[0031] When the first jaw and the second jaw are in an open state, the first slider and the second slider are both in an initial state; when the screw motor drives the first slider to move forward in a straight line, the second slider connected thereto moves forward under the elastic force of the spring, thereby driving the transmission member to rotate, and the transmission member drives the first rotating shaft to rotate, thereby driving the first jaw and the second jaw to rotate toward each other for clamping the test tube; after the first jaw and the second jaw grab the test tube, the transmission member stops rotating. At this time, the first slider can continue to move under the action of the screw motor, driving the sliding rod sliding through the second slider to slide forward (relative to the second slider), thereby continuously compressing the spring, and the elastic force of the spring increases and eventually acts on the first jaw and the second jaw to provide them with greater clamping force, thereby ensuring that test tubes of different specifications are stably clamped.

[0032] In the present invention, three sliding rods are arranged between the first sliding block and the second sliding block, and the maximum distance between the two sliding blocks is limited by the three sliding rods. The number of sliding rods can be adjusted according to the required clamping force, and two or one sliding rod can be optionally installed, and each sliding rod is covered with a spring.

[0033] Compared with the solution in which the spring is installed on the clamping claw, the spring of the device of the present invention is installed on the power end, so the deformation space of the spring is larger and a larger clamping force can be provided; at the same time, the number of springs of the device can be changed according to the required clamping force, and only one spring can be installed if the required clamping force is small; and two or even three springs can be installed if the required clamping force is large; the spring of the device is not installed on the clamping claw, so even if the deformation amounts of several springs are inconsistent, the clamped test tube will not be skewed.

[0034] like Figure 1 , Figure 2 As shown, the test tube clamping device of the present invention also includes a mounting base 17, on which the shaft mounting plate 6, the lead screw motor 9, and the linear guide rail 10 are all arranged; a reset optical coupler 18 is arranged on the mounting base 17, and an optical coupler sheet 19 adapted thereto is arranged on the first slider 13, and the optical coupler sheet 19 triggers the reset optical coupler 18 when the clamping jaws are in an open state, that is, the optical coupler sheet 19 triggers the reset optical coupler 18 in the initial state, at which time the two sliders are also at the leftmost end of their travel, and the distance between the two sliders is also at the maximum distance allowed by the sliding rod 16. In this state, the test tube that does not need to be opened or sealed can pass smoothly.

[0035] like Figure 3 As shown, the present invention also discloses a sample analysis pipeline system, including a cover opening device for opening the cover of a test tube; a cover sealing device for sealing the test tube; a test tube clamping device for clamping the test tube that needs to be opened and / or sealed; multiple sample analyzers for testing samples; and an assembly line track for scheduling the test tubes between the cover opening device, the cover sealing device and the multiple sample analyzers.

[0036] The above-mentioned multiple sample analyzers can be the same detection instruments or different detection instruments, and can be adjusted and installed according to the specific needs of hospitals, laboratories, etc.; specifically, the sample analyzers include biochemical detection instruments, immunological detection instruments, urine detection instruments, etc.

[0037] Furthermore, a blocking device 20 is provided on one side of the test tube clamping device for blocking and limiting the test tube 3 ; and a detection mechanism is provided for identifying information of the test tube 3 .

[0038] Furthermore, a test tube holder is provided on the assembly line track for carrying the test tube 3. The assembly line track drives the test tube holder to move and then drives the test tube on the test tube holder to move.

[0039] Furthermore, the detection mechanism includes a first detection unit 21, which is used to detect the specifications of the test tube and whether the cover needs to be opened or / and sealed; a second detection unit 22, which is used to detect the status of the test tube in place; in this embodiment, the first detection unit 21 adopts an RIFD chip detection device, and the corresponding test tube holder for transporting the test tube is provided with an RIFD chip, and the RIFD chip detection device can read the specification information such as the test tube diameter and whether the cover needs to be opened or / and sealed stored in the RIFD chip; the second detection unit 22 adopts a photoelectric sensor, which is used to sense the status of the test tube 3 in place.

[0040] When the test tube 3 moves to the cover opening device or the cover closing device along the assembly line track, after the photoelectric sensor senses that the test tube 3 is in place, the blocking device 20 blocks and limits the test tube holder below the test tube 3; the RIFD chip detection device identifies the information in the RIFD chip in the test tube holder, and reads the specification information such as the diameter of the test tube and whether the cover needs to be opened or closed; if the test tube 3 needs to be opened or closed, the system will select different running steps of the lead screw motor according to the test tubes 3 of different diameters, and feedback to perform the tube holding operation; after receiving the instruction, the lead screw motor 9 starts to move according to the selected number of steps, pushing the first slider 13 to move forward, the first slider 13 compresses the spring 13, and the spring 13 pushes and drives the second slider 14 to move forward, driving the transmission member 11 to rotate, thereby driving the first rotating shaft 7 to rotate, and finally driving the first clamping jaw 1 to rotate toward the test tube 3, and the second clamping jaw 2 rotates symmetrically under the meshing action of the gear 4; the final operation is as follows Figure 3The state just touching the test tube 3 is shown.

[0041] like Figure 4 As shown, after the clamp contacts the test tube 3, the screw motor 9 continues to move, pushing the first slider 13 to continue to move forward, and the first slider 13 continues to compress the spring 15. Since the clamp and the test tube 3 cannot rotate after contacting at this time, the second slider 14 cannot move either, so the distance between the two sliders becomes smaller, and the spring 15 is further compressed. The elastic force generated thereby is converted into the clamping force of the clamp on the test tube 3 through the transmission member 11; after the screw motor 9 has completed the preset number of steps, since the locking force of the screw motor 9 itself is greater than the elastic force of the spring 15, it can provide a continuous and constant clamping force. Under the premise of not changing the structure, if the clamping force needs to be increased, the number of running steps of the motor can be increased. After the test tube is clamped, the test tube 3 is opened or closed by the cover opening or closing mechanism. The elastic chuck installed on the clamp can prevent the clamp from damaging the test tube by hard contact with the test tube, and can also increase the friction coefficient to prevent the test tube from being pulled up or rotating relative to the clamp when opening the cover. After receiving the instruction that the opening or closing operation is completed, the screw motor drives the clamping jaws to return to the initial state.

[0042] The present invention also discloses a test tube clamping method for a sample analysis pipeline system, comprising the following steps: Move the test tube to the capping device or capping device through the assembly line track; Obtain the diameter information of the test tube that needs to be opened or capped; Calculate the number of running steps of the driving mechanism according to the pipe diameter information; The driving mechanism drives the first clamping jaw to rotate according to the number of running steps; When the first clamping jaw rotates, the second clamping jaw is driven to rotate to clamp the test tube.

[0043] Furthermore, the method further includes: detecting the specification of the test tube and whether the capping or sealing information is required by a first detection unit.

[0044] The present invention avoids the scheme of installing the spring on the clamping jaws, and can effectively avoid the occurrence of the situation where the clamped test tube is skewed due to inconsistent spring deformation through the mutual transmission of power between the clamping jaws.

[0045] 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 test tube clamping device, characterized in that: include: A first clamping jaw and a second clamping jaw, wherein the first clamping jaw cooperates with the second clamping jaw to clamp the test tube; The driving mechanism is used to drive the first clamping jaw to rotate and drive the second clamping jaw to rotate.

2. A test tube clamping device according to claim 1, characterized in that: The first clamping jaw and the second clamping jaw are meshed with each other through gears.

3. A test tube clamping device according to claim 1, characterized in that: The first clamping jaw and the second clamping jaw are both provided with a first elastic member for preventing the clamping jaw from rigidly contacting the test tube and thus damaging the test tube.

4. A test tube clamping device according to claim 1, characterized in that: It also includes a shaft mounting plate; the first clamping jaw and the second clamping jaw are rotatably mounted on the shaft mounting plate through the first shaft and the second shaft respectively; and one end of the first shaft away from the first clamping jaw is transmission-connected to the driving mechanism.

5. A test tube clamping device according to claim 4, characterized in that: The driving mechanism comprises: A slider assembly and a linear guide rail, wherein the slider assembly is slidably mounted on the linear guide rail; A transmission member, one end of which is slidably connected to the slider assembly, and the other end of which is fixedly connected to the first rotating shaft; The lead screw motor is used to drive the slider assembly to slide back and forth on the linear guide rail, thereby driving the transmission part to rotate.

6. A test tube clamping device according to claim 5, characterized in that: The transmission member is a rod-shaped structure with a slide groove, and the slider assembly is slidably connected in the slide groove through a rotating wheel.

7. A test tube clamping device according to claim 6, characterized in that: The slider assembly includes: a first slider and a second slider, the first slider and the second slider are connected via a second elastic member; the first slider is fixedly connected to the output shaft of the screw motor; and the second slider is slidably connected to the slide groove of the transmission member via a rotating wheel.

8. A test tube clamping device according to claim 7, characterized in that: The second elastic member comprises: The sliding rod comprises a rod portion and a blocking portion, wherein one end of the rod portion is fixed on the first sliding block, and the other end of the rod portion slides through the second sliding block and is fixedly connected to the blocking portion; The spring is sleeved on the rod.

9. A sample analysis pipeline system, characterized in that: A test tube clamping device comprising any one of claims 1 to 8, used for clamping a test tube that requires uncapping and / or capping operations; A cover opening device, used for opening the cover of the test tube; A capping device, used for capping the test tube; Multiple sample analyzers for testing samples; The assembly line track is used to dispatch the test tubes between the capping device, the capping device and multiple sample analyzers.

10. A sample analysis pipeline system according to claim 9, characterized in that: A blocking device is also provided on one side of the test tube clamping device for blocking and limiting the test tube; and a detection mechanism is provided for identifying the test tube information.

11. A sample analysis pipeline system according to claim 10, characterized in that: The detection mechanism includes: The first detection unit is used to detect the specifications of the test tube and whether the capping or sealing information is required; The second detection unit is used to detect the status of the test tube in place.

12. A test tube clamping method, characterized in that: The steps include: Move the test tube to the capping device or capping device through the assembly line track; Obtain the diameter information of the test tube that needs to be opened or capped; Calculate the number of running steps of the driving mechanism according to the pipe diameter information; The driving mechanism drives the first clamping jaw to rotate according to the number of running steps; When the first clamping jaw rotates, the second clamping jaw is driven to rotate to clamp the test tube.

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