Opening and closing device and sampling system

Abstract

The invention discloses an opening and closing device and a sample injection system, and relates to the technical field of medical equipment.The opening and closing device comprises a machine base, a fixing mechanism and a picking mechanism; the machine base is provided with a closed space, a feeding station and a processing station, the feeding station and the processing station are arranged in the closed space, and the processing station is located above the feeding station. According to the technical scheme, the machine base is arranged in the closed space for operation, diffusion of aerosol is reduced, transmission of the aerosol is reduced, the feeding station and the processing station are arranged, feeding processing can be conducted through the feeding station, that is, the fixing mechanism is adopted for fixing the test tubes, and the test tubes are fixed through the processing station. Through the arrangement of the picking part, the test tube caps on the test tubes can be picked close to or away from the feeding station, so that the purpose of automatically opening and closing the caps is achieved, manual operation is not needed, and the risk of disease infection caused by the fact that a user makes contact with the test tube caps is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to an opening and closing device and a sample injection system. Background Art

[0002] Currently, most of the diagnostic analysis instruments in the in vitro diagnostic industry do not have devices for removing and closing test tube caps. Samples are generally collected by piercing the test tube cap with a puncture needle and then sucking out the sample, or the test tube cap is manually removed in advance before testing and then placed in the instrument's sampling area for sample collection and testing. This is time-consuming and laborious, and the cap is exposed to the outside when it is removed, which can easily generate aerosols and lead to disease transmission. Summary of the invention

[0003] The main purpose of the present invention is to provide an opening and closing device and a sample introduction system, aiming to provide a device that can automatically open and close the test tube cap of a test tube in a closed space.

[0004] To achieve the above object, the opening and closing device proposed by the present invention comprises:

[0005] A machine base having a closed space, and a loading station and a processing station arranged in the closed space, wherein the processing station is located above the loading station;

[0006] A fixing mechanism, provided at the loading station, for fixing the test tube; and

[0007] The picking mechanism comprises a mounting portion and a picking portion, wherein the mounting portion is arranged close to the loading station and is located on one side of the fixing mechanism, and the picking portion is arranged at the processing station. The picking portion is movably arranged at the mounting portion to have a movable stroke close to or away from the loading station, and within the movable stroke, the picking portion can pick up the test tube cap on the test tube.

[0008] In one embodiment, the picking mechanism further includes a first driving component, which is disposed between the mounting portion and the picking portion and is transmission-connected to the picking portion to drive the picking portion to have a movable stroke approaching or moving away from the loading station.

[0009] In one embodiment, the first drive assembly includes a first motor, a belt transmission part and a linear guide;

[0010] The first motor is fixedly mounted on one side of the mounting portion, the linear guide rail is mounted on the mounting portion, and the belt transmission portion is transmission-connected to the first motor so that the picking portion can move in an up-and-down direction on the linear guide rail.

[0011] In one embodiment, the picking portion includes two clamping plates arranged opposite to each other and a second driving assembly driving the two clamping plates to move, and the second driving assembly is arranged on the mounting portion.

[0012] In one embodiment, the second driving assembly includes a mounting seat, a second motor, a first screw rod, a push block, a push shaft and a first guide rail;

[0013] The mounting seat is connected to the mounting part, the second motor is arranged on the mounting seat, the second motor is connected to the first screw rod in a transmission manner, the push block is sleeved on the outer peripheral wall of the first screw rod, the push shaft is connected to the push block, and movable grooves are provided inside the two clamping plates, the outer surface of the push shaft is movably connected to the inner surface of the movable groove, the first guide rail is arranged below the mounting seat, and the outer peripheral walls of the two clamping plates are slidably installed with the outer peripheral walls of the guide rail.

[0014] In one embodiment, the fixing mechanism includes two fixing plates arranged opposite to each other at the loading station, and a fixing space is formed between the two fixing plates for fixing the test tube.

[0015] In one embodiment, at least one of the fixing plates is movably arranged with respect to the base, so that the fixing space between the two fixing plates is adjustable.

[0016] In one embodiment, the two fixing plates include a first fixing plate and a second fixing plate, and the fixing mechanism further includes a third driving assembly, and the third driving assembly includes a third motor, a second screw rod drivingly connected to the third motor, and a second guide rail; wherein,

[0017] The second guide rail is arranged on the machine base, the first fixing plate is slidably arranged on the second guide rail, and is drivingly connected with the second screw rod so that the first fixing plate can move relative to the second fixing plate.

[0018] In one embodiment, the third driving assembly further includes a fourth motor and a third screw rod drivingly connected to the fourth motor; wherein,

[0019] The mounting portion is slidably disposed on the guide rail and is transmission-connected to the third screw rod. The second fixing plate is mounted on the mounting portion so that the second fixing plate can move relative to the first fixing plate.

[0020] The present invention further provides a sample injection system, comprising the opening and closing device, wherein the opening and closing device comprises:

[0021] A machine base having a closed space, and a loading station and a processing station arranged in the closed space, wherein the processing station is located above the loading station;

[0022] A fixing mechanism, provided at the loading station, for fixing the test tube; and

[0023] The picking mechanism comprises a mounting portion and a picking portion, wherein the mounting portion is arranged close to the loading station and is located on one side of the fixing mechanism, and the picking portion is arranged at the processing station. The picking portion is movably arranged at the mounting portion to have a movable stroke close to or away from the loading station, and within the movable stroke, the picking portion can pick up the test tube cap on the test tube.

[0024] The technical solution of the present invention reduces the diffusion of aerosols and the spread of aerosols by placing the machine base in a closed space for operation. By providing the loading station and the processing station, the loading processing can be performed through the loading station, that is, the test tube is fixed by the fixing mechanism, and the pick-up part can be approached or moved away from the loading station to pick up the test tube cap on the test tube, thereby achieving the purpose of automatic opening and closing of the cover, without the need for manual operation, and reducing the risk of disease infection caused by user contact with the test tube cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the three-dimensional structure of an opening and closing device according to an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the three-dimensional structure of a picking portion in the opening and closing device provided by the present invention;

[0028] Figure 3 The present invention is a schematic diagram of the three-dimensional structure of the sample injection system provided by the present invention.

[0029] Description of Figure Numbers:

[0030] 100, opening and closing device; 1, machine base; 11, feeding station; 12, processing station; 2, fixing mechanism; 21, fixing plate; 211, first fixing plate; 212, second fixing plate; 22, third driving assembly; 221, third motor; 222, second screw rod; 223, second guide rail; 224, fourth motor; 225, third screw rod; 3, picking mechanism; 31, mounting part; 32, picking part; 321, clamping plate; 322, second driving assembly; 3221, mounting seat; 3222, second motor; 3223, push block; 3224, push shaft; 3225, first guide rail; 333, first driving assembly; 3331, first motor; 3332, belt transmission part; 3333, linear guide rail;

[0031] 200. Injection system.

[0032] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] Currently, most of the diagnostic analysis instruments in the in vitro diagnostic industry do not have devices for removing and closing test tube caps. Samples are generally collected by piercing the test tube cap with a puncture needle and then sucking out the sample, or the test tube cap is manually removed in advance before testing and then placed in the instrument's sampling area for sample collection and testing. This is time-consuming and laborious, and the cap is exposed to the outside when it is removed, which can easily generate aerosols and lead to disease transmission.

[0037] The present invention provides an opening and closing device and a sample introduction system, aiming to provide a device capable of automatically opening and closing a test tube cap of a test tube in a closed space.

[0038] See also Figures 1 to 3 In one embodiment of the present invention, the opening and closing device 100 includes a base 1, a fixing mechanism 2 and a picking mechanism 3; the base 1 has a closed space, and a loading station 11 and a processing station 12 arranged in the closed space, and the processing station 12 is located above the loading station 11; the fixing mechanism 2 is arranged at the loading station 11, and is used to fix the test tube; the picking mechanism 3 includes a mounting portion 31 and a picking portion 32, the mounting portion 31 is arranged close to the loading station 11 and is located on one side of the fixing mechanism 2, the picking portion 32 is arranged at the processing station 12, and the picking portion 32 is movably arranged at the mounting portion 31 to have a movable stroke close to or away from the loading station 11, and within the movable stroke, the picking portion 32 can pick up the test tube cap on the test tube.

[0039] The technical solution of the present invention reduces the diffusion of aerosols and the spread of aerosols by placing the machine base 1 in a closed space for operation. By providing the loading station 11 and the processing station 12, the loading processing can be performed through the loading station 11, that is, the test tube is fixed by the fixing mechanism 2, and the pick-up portion 32 can be approached or moved away from the loading station 11 to pick up the test tube cap on the test tube, thereby achieving the purpose of automatic opening and closing of the cover without manual operation, thereby reducing the risk of disease infection caused by user contact with the test tube cap.

[0040] It is understandable that the fixing mechanism 2 can be set up in a slot with suction, that is, the test tube is inserted into the slot and fixed; or it can be fixed by a clamp 321, that is, the test tube is clamped and fixed by two clamping blocks that are relatively close to each other; or it can be fixed by claws, that is, the test tube is grasped and fixed by the claws that are close to each other.

[0041] It can be understood that the movable stroke refers to the route from the picking portion 32 to the loading station 11.

[0042] Specifically, the movable stroke can be driven by a cylinder or a hydraulic cylinder, which is fixed on the mounting part 31 to drive the picking part 32 to approach or move away from the loading station 11; or a gear rack transmission is adopted, in which a rack is set on the mounting part 31, and a gear is set on the picking part 32, and the gear and the rack are meshed and rotated to make the picking part 32 approach or move away from the loading station 11; or a linear guide rail 3333 is adopted, in which the linear guide rail 3333 is set on the mounting part 31, and the picking part 32 moves on the linear guide rail 3333 to approach or move away from the loading station 11.

[0043] It should be noted that the installation portion 31 may be provided by using a mounting plate to support the pickup portion 32, which is easy to install and process.

[0044] In one embodiment, the picking mechanism 3 further includes a first driving component 333, which is disposed between the mounting portion 31 and the picking portion 32 and is transmission-connected to the picking portion 32 to drive the picking portion 32 to have an active stroke approaching or moving away from the loading station 11.

[0045] In this way, through the setting of the first driving component 333, the picking part 32 can be driven to move, so that the movement of the picking part 32 can be precise and stable, thereby making the picking process more automated and intelligent, reducing manual intervention, and thus improving production efficiency.

[0046] It is understandable that the present application does not impose any specific limitation on the configuration of the first driving component 333 . For example, a cylinder is used to drive the picking portion 32 to move closer to or away from the loading station 11 .

[0047] In one embodiment, the first driving component 333 includes a first motor 3331, a belt transmission part 3332 and a linear guide rail 3333; the first motor 3331 is fixed to one side of the mounting part 31, the linear guide rail 3333 is arranged on the mounting part 31, and the belt transmission part 3332 is transmission-connected to the first motor 3331 so that the picking part 32 can move in the up and down directions on the linear guide rail 3333.

[0048] With such an arrangement, the first motor 3331 can drive the belt transmission part 3332 to transmit, thereby driving the picking part 32 to move in the up and down directions on the linear guide rail 3333 to approach or move away from the loading station 11.

[0049] It should be explained that the belt transmission part 3332 includes a synchronous belt, a driving wheel, a driven wheel and a slider. The slider is installed on the linear guide 3333 so that the slider can slide on the linear guide 3333. The synchronous belt is connected between the slider and the first motor 3331. The driving wheel and the driven wheel are driven to rotate by the drive of the first motor 3331, that is, the synchronous belt rotates, driving the slider to move in the up and down directions on the linear guide 3333, thereby facilitating the movement of the picking part 32.

[0050] It should be noted that the first motor 3331 is fixed to the mounting portion 31 by bolting, screwing, etc. The first motor 3331 can be replaced by a stepper motor, a screw motor, or a brushless motor, etc. Of course, motors of different models and specifications can also be replaced.

[0051] It should be supplemented that a reset optical coupler is provided on one side of the first motor 3331 to determine the reset position of the first driving component 333 .

[0052] In one embodiment, the picking portion 32 includes two clamping plates 321 disposed opposite to each other and a second driving assembly 322 driving the two clamping plates 321 to move, and the second driving assembly 322 is disposed on the mounting portion 31 .

[0053] With such arrangement, the two clamping plates 321 can be driven by the second driving assembly 322, so as to adapt to the fixation of test tubes of different sizes and shapes, thereby increasing the versatility and adaptability of the device.

[0054] It is understandable that the present application does not impose any specific limitation on the configuration of the second driving assembly 322 . For example, a screw motor is used to drive the two clamping plates 321 toward opposite sides or away from opposite sides.

[0055] In one embodiment, the second driving assembly 322 includes a mounting seat 3221, a second motor 3222, a first screw rod 3223, a push block 3224, a push shaft 3225 and a first guide rail 223; the mounting seat 3221 is arranged on one side of the mounting portion 31, the second motor 3222 is arranged above the mounting seat 3221, the second motor 3222 is transmission-connected to the first screw rod 3223, the push block 3224 is sleeved on the outer peripheral wall of the first screw rod 3223, the push shaft 3225 is connected to the push block 3224, the two clamps 321 are each provided with a movable groove inside, the outer surface of the push shaft 3225 is movably connected to the inner surface of the movable groove, the first guide rail 223 is arranged below the mounting seat 3221, and the outer peripheral walls of the two clamps 321 are slidably mounted to the outer peripheral walls of the first guide rail 223.

[0056] With such arrangement, the mounting seat 3221 provides a mounting position for the second motor 3222, and the second motor 3222 drives the first screw rod 3223 to rotate, thereby driving the push block 3224 to move in the up and down directions, and the push shaft 3225 follows the push block 3224 to move in the up and down directions. By opening a movable groove inside the two clamping plates 321, the push shaft 3225 can move in the movable groove, and then when the push shaft 3225 and the push block 3224 move downward synchronously, a pulling force is generated on the two clamping plates 321, so that the two clamping plates 321 move toward each other under the action of the first guide rail 223, so that the gap between the two clamping plates 321 is reduced, thereby achieving the purpose of clamping the test tube cap of the test tube.

[0057] It should be supplemented that the movable groove is arranged in an arc shape, so as to provide moving space for the two clamps 321. In addition, a clamping arm is provided on the outer wall of the clamping plate 321, so as to fix the clamping plate 321 and connect the external structure. A clamping piece is provided above the clamping plate 321, so as to connect the clamping plate 321. By setting the first guide rail 223, the clamping arm and the clamping plate 321 can run smoothly, and the resistance of the clamping arm and the clamping plate 321 during movement can be reduced. Of course, as other alternative implementation schemes, the first guide rail 223 can be replaced by a guide shaft, etc.

[0058] It should be added that the second drive component 322 also includes a test tube cap detection optical coupler provided on the outer wall of the clamp 321, which is used to detect whether the test tube cap is inside the clamp 321, so as to determine whether the test tube capping and closing operations are operating normally. Of course, as other alternative implementation schemes, the test tube cap detection optical coupler 166 can also be replaced by a reflective optical coupler or a slot-type optical coupler and other sensing devices, as well as a reset optical coupler provided under the mounting seat 3221 to facilitate the reset operation.

[0059] It should be supplemented that the second driving component 322 also includes a slider seat, which is convenient for connection with the slider, so that the picking part 32 can move in the up and down directions on the linear guide rail 3333.

[0060] The second motor 3222 in the present application adopts a screw motor, and when the motor is running, it drives the push block 3224 to move upward or downward. As other alternative implementation schemes, the second motor 3222 can be replaced by a stepper motor, a brushless motor, etc., or by a motor of different models and specifications.

[0061] In one embodiment, the fixing mechanism 2 includes two fixing plates 21 that are oppositely disposed at the loading station 11 , and a fixing space is formed between the two fixing plates 21 for fixing the test tube.

[0062] In this way, the two fixing plates 21 can clamp the test tube so that the test tube will not shake or deviate during the processing, thereby improving the stability of the operation. In addition, the distance between the two fixing plates 21 can be adjusted to accommodate test tubes of different diameters, thereby increasing the flexibility of the opening and closing device 100.

[0063] In one embodiment, at least one of the fixing plates 21 is movably disposed with respect to the machine base 1 , so that the fixing space between the two fixing plates 21 is adjustable.

[0064] With such arrangement, when the fixing space between the two fixing plates 21 is adjustable, when clamping the test tube, the test tubes of different sizes and shapes can obtain appropriate clamping force, which is neither too loose to cause the test tube to shake, nor too tight to cause the test tube to be damaged, thereby improving practicality.

[0065] It should be noted that a horizontal motion guide rail is provided above the machine base 1 , and the horizontal motion guide rail is movably connected to the bottom of the two fixing plates 21 , so as to facilitate the movement of the two fixing plates 21 on the machine base 1 .

[0066] Of course, as other alternative embodiments, the horizontal motion guide rail can be replaced by a guide shaft or the like.

[0067] In one embodiment, the two fixed plates 21 include a first fixed plate 211 and a second fixed plate 212, and the fixing mechanism 2 also includes a third driving assembly 22, and the third driving assembly 22 includes a third motor 221, a second screw rod 222 transmission-connected to the third motor 221, and a second guide rail 223; wherein the second guide rail 223 is disposed on the machine base 1, and the first fixed plate 211 is slidably disposed on the second guide rail 223, and is transmission-connected to the second screw rod 222, so that the first fixed plate 211 can move relative to the second fixed plate 212.

[0068] With such arrangement, the third motor 221 can drive the second screw rod 222 to rotate, thereby driving the first fixing plate 211 to slide on the second guide rail 223, thereby completing the movement of the first fixing plate 211 relative to the second fixing plate 212, thereby fixing the test tube.

[0069] It should be added that silicone pads are provided on opposite sides of the first fixing plate 211 and the second fixing plate 212. The test tube is fixed by the force generated by the squeeze and deformation of the silicone pads. At the same time, the deformation of the silicone pads can reduce the possibility of pinching and exploding the test tube. Of course, other flexible materials can also be used.

[0070] In one embodiment, the third driving assembly 22 also includes a fourth motor 224 and a third screw rod 225 transmission connected to the fourth motor 224; wherein the mounting portion 31 is slidably disposed on the guide rail 223 and transmission connected to the third screw rod 225, and the second fixed plate 212 is mounted on the mounting portion 31 so that the second fixed plate 212 can move relative to the first fixed plate 211.

[0071] In this arrangement, the fourth motor 224 can drive the third screw rod 225 to rotate, thereby driving the second fixing plate 212 to slide on the mounting portion 31 through the guide rail 223, thereby completing the movement of the second fixing plate 212 relative to the first fixing plate 211. As a result, both the first fixing plate 211 and the second fixing plate 212 can be movable, and the clamping position of the test tube can be adjusted more accurately.

[0072] It should be supplemented that the fixing mechanism 2 further includes a plurality of reset optical couplers arranged on the horizontal motion guide rail, which are convenient for determining the reset positions of the two fixing plates 21 .

[0073] The present invention also proposes an injection system, including an opening and closing device. The specific structure of the opening and closing device refers to the above-mentioned embodiment. Since the opening and closing device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0074] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An opening and closing device, characterized in that: include: A machine base having a closed space, and a loading station and a processing station arranged in the closed space, wherein the processing station is located above the loading station; A fixing mechanism, provided at the loading station, for fixing the test tube; and The picking mechanism comprises a mounting portion and a picking portion, wherein the mounting portion is arranged close to the loading station and is located on one side of the fixing mechanism, and the picking portion is arranged at the processing station. The picking portion is movably arranged at the mounting portion to have a movable stroke close to or away from the loading station, and within the movable stroke, the picking portion can pick up the test tube cap on the test tube.

2. The opening and closing device according to claim 1, characterized in that: The picking mechanism further comprises a first driving assembly, which is disposed between the mounting portion and the picking portion and is transmission-connected to the picking portion to drive the picking portion to move close to or away from the loading station.

3. The opening and closing device according to claim 2, characterized in that: The first drive assembly includes a first motor, a belt transmission part and a linear guide rail; The first motor is fixedly mounted on one side of the mounting portion, the linear guide rail is mounted on the mounting portion, and the belt transmission portion is transmission-connected to the first motor so that the picking portion can move in an up-and-down direction on the linear guide rail.

4. The opening and closing device according to claim 1, characterized in that: The picking-up portion includes two clamping plates arranged opposite to each other and a second driving assembly for driving the two clamping plates to move, wherein the second driving assembly is arranged on the mounting portion.

5. The opening and closing device according to claim 4, characterized in that: The second driving assembly includes a mounting seat, a second motor, a first screw rod, a push block, a push shaft and a first guide rail; The mounting seat is connected to the mounting part, the second motor is arranged on the mounting seat, the second motor is connected to the first screw rod in a transmission manner, the push block is sleeved on the outer peripheral wall of the first screw rod, the push shaft is connected to the push block, and movable grooves are provided inside the two clamping plates, the outer surface of the push shaft is movably connected to the inner surface of the movable groove, the first guide rail is arranged below the mounting seat, and the outer peripheral walls of the two clamping plates are slidably installed with the outer peripheral walls of the guide rail.

6. The opening and closing device according to claim 1, characterized in that: The fixing mechanism comprises two fixing plates which are arranged opposite to each other at the loading station, and a fixing space is formed between the two fixing plates for fixing the test tube.

7. The opening and closing device according to claim 6, characterized in that: At least one of the fixing plates is movably arranged with the machine base so that the fixing space between the two fixing plates is adjustable.

8. The opening and closing device according to claim 7, characterized in that: The two fixing plates include a first fixing plate and a second fixing plate, the fixing mechanism also includes a third driving assembly, the third driving assembly includes a third motor, a second screw rod drivingly connected to the third motor, and a second guide rail; wherein, The second guide rail is arranged on the machine base, the first fixing plate is slidably arranged on the second guide rail, and is drivingly connected with the second screw rod so that the first fixing plate can move relative to the second fixing plate.

9. The opening and closing device according to claim 8, characterized in that: The third driving assembly also includes a fourth motor and a third screw rod drivingly connected to the fourth motor; wherein, The mounting portion is slidably disposed on the second guide rail and is transmission-connected to the third screw rod. The second fixing plate is mounted on the mounting portion so that the second fixing plate can move relative to the first fixing plate.

10. A sample injection system, characterized in that: Comprising an opening and closing device as described in any one of claims 1 to 9.

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