CN212321623U

CN212321623U - Driving device

Info

Publication number: CN212321623U
Application number: CN202020181347.1U
Authority: CN
Inventors: 董丽静
Original assignee: Shenzhen Kerida Biotechnology Co ltd
Current assignee: Shenzhen Kerida Biotechnology Co ltd
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2021-01-08
Anticipated expiration: 2030-02-17

Abstract

The utility model relates to the technical field of medical equipment, a drive arrangement is proposed for drive test card, set up drive mechanism and the motor that is used for driving drive mechanism, through connect be used for with test card joint complex drive block group spare on drive mechanism, thereby realized test card at the inside automatic movement of instrument through drive mechanism with the cooperation that drives block group spare, the utility model discloses a drive arrangement drives test card through simple mechanical structure for test card accurate motion is to a plurality of positions in the instrument, can satisfy multiposition automated inspection's demand, compares in traditional manual removal test card, has improved the motion accuracy of efficiency of software testing and test card, has reduced the test cost, more adapts to quick, the accurate detection requirement in POCT detection area.

Description

Driving device

Technical Field

The utility model relates to the technical field of medical equipment, more specifically say, relate to a drive arrangement.

Background

In Vitro Diagnosis (IVD) refers to taking a sample (blood, body fluid, tissue, etc.) from a human body and performing detection analysis to diagnose a disease, wherein corresponding instruments and reagents are required In the detection process. POCT (point-of-care testing) has the characteristics of short testing time, unlimited testing space, simple operation and the like, and becomes the most rapidly-developed subdivision field of in-vitro diagnosis. The POCT instruments such as enzyme immunoassay, magnetic immunoassay, chemiluminescence, blood and gas and the like and the matched cards, plates, strips and other reagents integrate a new technology of multiple disciplines, and are one of the development hotspots in the field of current medical instruments. In the prior art, when the POCT instrument works, the test card moves inside the instrument to complete detection, scanning and other actions, whether the test card is used in one position or needs to be used in a plurality of positions, the movement of the test card is mostly realized manually, and the manual movement causes inaccurate position movement and low test efficiency when the test card is used in a plurality of positions in the instrument.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drive arrangement, aim at solving prior art, POCT instrument test card/board/strip etc. need lean on manual removal when a plurality of positions detect the use in the instrument, and the position motion is inaccurate, the technical problem that efficiency of software testing is low.

In order to solve the technical problem, the utility model provides a drive device for drive test card, including drive mechanism, and be used for the drive mechanism's motor, the last drive block subassembly that is connected with of drive mechanism, drive block subassembly be used for with the cooperation of test card joint.

Further, drive mechanism includes driving pulley, belt and driven pulleys, driving pulley fixed connection in on the motor shaft of motor, the one end of belt is located on the driving pulley, the other end of belt is located on the driven pulleys, drive block subassembly connect in on the belt.

Further, drive block subassembly including rotating the plectrum, driving a main part and set screw, rotate the plectrum be used for with the cooperation of test card joint, drive a main part and pass through set screw with the belt is connected.

Furthermore, the driving block assembly further comprises a reset elastic sheet, wherein the reset elastic sheet is arranged in a groove in the driving block main body and is positioned below the rotating shifting piece and used for providing restoring force for the rotating shifting piece to ascend and descend.

Further, drive block subassembly still includes the gasket, the gasket is located set screw's lower extreme is used for the tensioning the belt.

Furthermore, a boss is arranged on the rotary shifting piece and used for being matched with the test card in a clamping mode.

Furthermore, a vertical surface is arranged on the boss and is perpendicular to the upper end surface of the test card.

Furthermore, a first guide block is arranged on the rotating shifting piece and used for being abutted against the guide block inside the instrument, so that the rotating shifting piece is driven to rotate.

Furthermore, the first guide block is provided with an inclined surface for abutting against the guide block inside the instrument.

The utility model provides a drive device's beneficial effect lies in: compared with the prior art, the utility model discloses a drive arrangement for drive the test card, be used for driving drive mechanism's motor, through connect be used for on drive mechanism with test card joint complex drive block group spare, thereby realized the test card at the inside automatic movement of instrument through drive mechanism with the cooperation that drives block group spare, utilize simple mechanical structure to drive the test card, make the test card accurate motion to a plurality of positions in the instrument, can satisfy the multiposition automated inspection demand, compare in traditional manual removal test card, the efficiency of software testing and the accuracy of motion have been improved.

Drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the drawings that are needed in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, and in which:

FIG. 1 is an exploded view of a drive assembly according to an embodiment of the present invention;

FIG. 2 is a schematic view of the embodiment of FIG. 1 showing the engagement of the actuator with the test card;

FIG. 3 is a schematic cross-sectional view of the embodiment of FIG. 2 showing the connection of the drive block assembly to the belt;

FIG. 4 is a schematic view of the mating of the driver block assembly and the test card in the embodiment of FIG. 2;

fig. 5(a) and 5(b) are schematic diagrams of the first guide block pressing instrument internal guide block (second guide block) in an embodiment of the present invention.

Description of reference numerals:

1. a drive mechanism; 11. a transmission mechanism; 111. a driving pulley; 112. a belt; 113. a driven pulley; 114. an idler pulley; 115. a rotating shaft; 12. a motor; 2. a drive block assembly; 21. a driving block main body; 22. rotating the shifting sheet; 221. a boss; 222. a first guide block; 23. resetting the elastic sheet; 24. a set screw; 25. a gasket; 3. a test card; 31. a test card slot; 32. an entrance end slope; 33. entering an end vacancy avoiding position; 34. a disengaging end; 4. and a second guide block.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The following embodiments with reference to the drawings are illustrative and intended to explain the present invention, and should not be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "communicating" are to be construed broadly, e.g., as meaning mechanically or electrically connected; the connection may be direct, indirect or internal, or may be a connection between two elements or an interaction relationship between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The preferred embodiment of the present invention is described below with reference to the accompanying drawings, and it should be noted that the technical solution of the present invention can be applied to different POCT instruments equipped with reagents such as test cards/test strips/test boards, and the following description is only given by way of example of test cards:

as shown in fig. 1 and fig. 2, in this embodiment, the driving device is used for driving the test card 3 matched with the driving device, the driving device includes a driving mechanism 1, the driving mechanism 1 includes a transmission mechanism 11 and a motor 12 for driving the transmission mechanism 11, the transmission mechanism 11 is connected with a driving block assembly 2, and the driving block assembly 2 is used for being engaged with the test card 3. When the test card moving device works, the motor 12 drives the transmission mechanism 11 to move, the transmission mechanism 11 drives the driving block assembly 2 connected with the transmission mechanism to move, and the driving block assembly 2 drives the test card 3 in clamping fit with the transmission mechanism to move, so that the automatic moving detection of the test card 3 in the instrument is realized.

As shown in fig. 1 and fig. 2, in this embodiment, the transmission mechanism 11 includes a driving pulley 111, a belt 112 and a driven pulley 113, the driving pulley 111 is fixedly connected to a motor shaft of the motor 12, the driven pulley 113 is sleeved on the rotating shaft 115, one end of the belt 112 is located on the driving pulley 111, the other end of the belt 112 is located on the driven pulley 113, the driving pulley 111 and the driven pulley 113 support the belt 112 together, and during operation, under the driving of the motor 12, the driving pulley 111 rotates, and the belt 112 moves together with the driving pulley and drives the driven pulley 113 to rotate together. The driving block assembly 2 is connected to the belt 112 and moves together with the movement of the belt 112. From this, drive block assembly 2 and drive rather than the inside automatic movement of joint complex test card 3 of joint, realize the automated inspection of test card 3 a plurality of positions in the instrument.

Preferably, an idler pulley 114 is disposed adjacent to the driving pulley 111 and alongside the driving pulley 111, at least one idler pulley 114 is disposed at the bottom of the belt 112 below the driving pulley 111 for tensioning the belt 112, and the idler pulley 114 is sleeved on the rotating shaft 115. Of course, other numbers of idler pulleys 114 may be provided to support the belt 112 for operation, and are not limited herein. Alternatively, the motor 12 may be a brushed dc motor, a brushless dc motor, a stepping motor or a servo motor, and the driving pulley 111 may be fixed to the motor shaft by screws, or may be fixed to the motor shaft by other methods, which is not limited herein; the belt 112 may be a flat belt, a wedge belt, or a timing belt, all without limitation.

As shown in fig. 1 and fig. 3, in the present embodiment, the driving block assembly 2 includes a driving block main body 21, a rotating shifting piece 22 for being snap-fitted with the test card 3, and a fixing screw 24 for fixing the driving block main body 21. The driving block main body 21 is connected with the belt 112 through the fixing screw 24, that is, the fixing screw 24 is screwed into the threaded hole on the driving block main body 21, and the end surface of the fixing screw 24 extrudes the belt 112, so that the belt 112 and the driving block main body 21 do not slide relatively, and the belt 112 is tensioned.

Preferably, in an embodiment, a gasket 25 may be disposed at a lower end of the fixing screw 24, the fixing screw 24 is screwed into the threaded hole of the driving block main body 21, an end surface of the fixing screw 24 presses the gasket 25, and the gasket 25 presses the belt 112, so as to tension the belt 112; the provision of the spacer 25 more effectively achieves tensioning of the belt 112 and reduces wear of the end face of the set screw 24 on the belt 112. Of course, instead of using a screw to compress the spacer, tensioning of the belt 112 may be accomplished in a different manner, such as by moving the position of an idler pulley to tension the belt 112.

As shown in fig. 1 and 4, in the present embodiment, the driving block assembly 2 further includes a reset spring 23 for providing a restoring force to raise and lower the rotary paddle 22. Reset in the shell fragment 23 installs the recess on driving piece main part 21, rotate plectrum 22 and install on shell fragment 23 that resets, rotate plectrum 22 and test card 3 joint cooperation.

Optionally, the reset spring 23 may be a manganese steel piece, or a beryllium copper piece, or a phosphor bronze piece, or a stainless steel piece, or may be made of other materials, which is not limited herein.

As shown in fig. 4, in the present embodiment, the rotary paddle 22 is provided with a boss 221 for being snap-fitted with the test card 3, and correspondingly, the test card 3 is provided with a test card groove 31 for being snap-fitted with the boss 221. The during operation, when the drive mechanism 1 moves the screens position, artificially push in test card 3, this moment under test card 3's exogenic action, rotate plectrum 22 and rotate, the extrusion shell fragment 23 that resets, boss 221 supports test card 3 under the shell fragment 23 restoring force effect that resets, along with test card 3 constantly pushes in the instrument, boss 221 can slide for test card 3, thereby fall into test card recess 31, boss 221 lifts up under the shell fragment 23 effect that resets this moment, realize the joint cooperation of boss 221 and test card recess 31, later test card 3 can move along with drive mechanism 1.

In another embodiment, optionally, the test card 3 is engaged with the rotary shifting piece 22, and a boss is disposed on the test card 3, a groove is disposed on the rotary shifting piece 22, and the rotary shifting piece 22 can also rotate to assemble the test card 3.

As shown in fig. 4, in this embodiment, the boss 221 is preferably a square boss, the lateral surface of the square boss is a vertical surface, correspondingly, the test card slot 31 matching with the boss 221 is a square slot, and the inner lateral surface of the square slot is a vertical surface, when the card matching is performed, the vertical surface of the boss 221 and the vertical surface of the test card slot 31 are attached to each other and are both perpendicular to the upper end surface of the test card 3. The vertical face can avoid that the test card 3 is unhooked from the rotary shifting piece 22 along with continuous movement during detection, so that the movement of the test card 3 is interrupted, and the detection result is influenced. Of course, the shape of the boss 221 and the test card recess 31 may be other shapes that fit each other, and the shape is not limited herein, provided that the test card 3 and the rotatable dial 22 are not easily unhooked.

As shown in fig. 5(a) and 5(b), in this embodiment, the rotary paddle 22 is further provided with a first guide block 222, the first guide block 222 is used for abutting against an instrument internal guide block (the second guide block 4) so as to drive the rotary paddle 22 to rotate, and the first guide block 222 and the second guide block 4 can be independently arranged in a contact manner. Preferably, the first guide block 222 is provided with an inclined surface for abutting against the second guide block 4, and the inclined surface is not perpendicular to the end surface of the test card 3. After the test is finished, the driving mechanism 1 drives the test card 3 to move outwards, when the test card is moved to the card taking position, the second guide block 4 presses the first guide block 222 on the rotating shifting piece 22 along the inclined plane on the first guide block 222, the first guide block 222 drives the rotating shifting piece 22 to rotate, the rotating shifting piece 22 starts to press the reset elastic piece 23, when the rotating shifting piece 22 is lower than the plane of the separation end 34 on the test card 3, the test card 3 can be manually pulled out, and therefore the test card 3 can be automatically moved and separated from the inside of the instrument.

As shown in fig. 4, in this embodiment, the test card 3 is further provided with an entering end slope 32, an entering end clearance 33 and a disengaging end 34. After the driving mechanism 1 runs to the upper clamping position, the test card 3 is pushed into the instrument card insertion opening manually, firstly, the boss 221 can slide along the slope 32 of the entrance end of the test card 3, so that the rotary shifting piece 22 rotates to extrude the reset elastic piece 23, then, the boss 221 can abut against the entrance end of the test card 3 under the restoring force action of the reset elastic piece 23 to avoid the vacancy 33, along with the continuous pushing of the test card 3, the boss 221 can fall into the test card groove 31, at the moment, the boss 221 is lifted under the action of the reset elastic piece 23, the clamping cooperation of the boss 221 and the test card groove 31 is realized, and then, the test card 3 can move along with the driving mechanism 1. After the card 3 to be tested completes the required detection action in the instrument, the driving mechanism 1 runs to the card taking position, the driving mechanism 1 drives the test card 3 to move outwards, the second guide block 4 in the instrument extrudes the first guide block 222 on the rotating shifting piece 22 along the inclined plane on the first guide block 222, the first guide block 222 drives the rotating shifting piece 22 to rotate, the rotating shifting piece 22 starts to extrude the reset elastic piece 23, when the rotating shifting piece 22 is lower than the plane of the separation end 34 on the test card 3, the test card 3 can be manually pulled out, and therefore the test card 3 can be automatically moved and separated from the inside of the instrument. After the test card 3 is pulled out, the rotary poking sheet 22 can reset under the extrusion of the elastic restoring force of the reset elastic sheet 23.

Alternatively, the shape of the test card 3 may be implemented by machining or mold opening, and the material of the test card 3 may be a polymer plastic, such as PP, PE, or PC.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a drive arrangement for drive test card, its characterized in that, including drive mechanism, and be used for the drive mechanism's motor, drive mechanism includes driving pulley, belt and driven pulleys, driving pulley fixed connection in on the motor shaft of motor, the one end of belt is located on the driving pulley, the other end of belt is located on the driven pulleys, be connected with on the belt and drive block subassembly, drive block subassembly including rotating the plectrum, drive a main part and set screw, rotate the plectrum be used for with the cooperation of test card joint, it passes through to drive a main part set screw with the belt is connected.

2. The actuator of claim 1, wherein the actuator assembly further comprises a reset spring disposed in a recess of the actuator body and below the rotary paddle for providing a restoring force for the rotary paddle to move up and down.

3. The drive of claim 1 wherein said drive block assembly further comprises a spacer disposed at a lower end of said set screw for tensioning said belt.

4. The driving device as claimed in claim 1, wherein the rotary shifting piece is provided with a boss for engaging with the test card.

5. The device as claimed in claim 4, wherein the boss has a vertical surface perpendicular to the upper end surface of the test card.

6. The driving device according to any one of claims 1 to 5, wherein a first guiding block is disposed on the rotary paddle, and the first guiding block is configured to abut against an instrument internal guiding block, so as to drive the rotary paddle to rotate.

7. The device according to claim 6, wherein the first guide block is provided with an inclined surface for abutting against an inner guide block of the instrument.