CN220820041U

CN220820041U - Online replacement device for kit

Info

Publication number: CN220820041U
Application number: CN202322436526.1U
Authority: CN
Inventors: 吕昌斌; 冯继文
Original assignee: Shanghai Pinfeng Medical Technology Co ltd; Pinfeng Shenzhen Medical Equipment Co ltd
Current assignee: Shanghai Pinfeng Medical Technology Co ltd; Pinfeng Shenzhen Medical Equipment Co ltd
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2024-04-19
Anticipated expiration: 2033-09-07

Abstract

The utility model provides an online reagent kit replacing device which comprises a reagent bin, an online reagent kit replacing mechanism and a reagent kit storage module, wherein the reagent bin comprises a reagent disc and a reagent disc cover, a plurality of reagent kit loading positions are distributed in the reagent disc in an annular array manner, and reagent kits are loaded on the reagent kit loading positions; an online replacement window and a manual replacement window are arranged on the reagent tray cover; the on-line replacement mechanism comprises a Y-axis moving module, a Z-axis moving module and a clamping jaw module, wherein the clamping jaw module can take and place the reagent kit from the reagent tray and the reagent kit storage module under the driving of the Y-axis moving module and the Z-axis moving module. The on-line kit replacing device has the advantages of high space utilization rate, simplicity in disassembly and stronger operability and flexibility.

Description

Online replacement device for kit

Technical Field

The utility model belongs to the technical field of chemiluminescent immunoassay analyzers, and particularly relates to an online kit replacing device.

Background

In the equipment for in vitro detection of samples such as the full-automatic chemiluminescence immunoassay analyzer, reagents are needed, the reagents are stored in a reagent kit sealed by silica gel, the reagent kit is placed in a reagent tray which can be rotated and shaken uniformly, and a reagent needle can penetrate through the reagent tray and a reagent kit silica gel pad to absorb the reagents, so that assay reagents are provided.

Along with the continuous increase of clinical medicine detection sample quantity, the requirements on the test flux and the test speed of immunoassay are also higher and higher, when the reagent kit is replaced, the current full-automatic immunoassay instrument is often required to be suspended for manual replacement operation, and the mode is not only troublesome in operation, but also low in efficiency, severely reduces the test flux, and drags the test speed, and even can pollute the reagent kit because of manual operation, so that a plurality of devices for automatically replacing the reagent kit are arranged.

In the existing automatic reagent box replacing device, a disc-shaped reagent box temporary storage module is additionally arranged on the inner ring or the upper part of a reagent disc, the space occupied by the reagent box temporary storage module in the mode is overlarge, and a plurality of replacing positions are arranged, so that manual operation positions are easily blocked, other operations are inconvenient, and the space utilization rate is too low; there is also a method for replacing the whole kit to be replaced by pressing in, but the method requires a plurality of stations to be aligned simultaneously, so that the processing requirement is more strict, and the assembly aspect also requires multiple times of debugging, so that the method is more complex; the whole reagent box replacing mechanism is arranged on the reagent disc cover, but the reagent disc cover needs to be disassembled for maintenance, and the method can lead to complex wiring and difficult disassembly.

In the online reagent kit replacing device, the structure of a reagent kit is involved, the existing grabbing structure adopts large clamping plates at two sides, clamping grooves are formed in the plates for clamping, and then the reagent kit is grabbed in a driving mode of a motor, a synchronous wheel and a synchronous belt, but the grabbing mode is easy to cause the motor to lose step; the motor drives the cam to rotate to open the gripper, and the tension spring is used for tensioning to achieve the purpose of taking and placing the reagent kit, but the motor is difficult to open when the spring force is overlarge, and the reagent kit is unstable in clamping and easy to deflect when the spring force is overlarge, so that the reagent kit cannot be placed in the reagent tray. Thus, there is a need for improvements to existing online reagent kit changing devices.

Disclosure of utility model

In order to solve the above problems, an object of the present utility model is to provide an online kit replacing device.

An online reagent kit replacing device comprises a reagent bin, a reagent kit storage module and an online reagent kit replacing mechanism;

The reagent bin comprises a reagent disc and a reagent disc cover, wherein the reagent disc cover is covered on the reagent disc, a plurality of reagent box loading positions are distributed in the reagent disc in an annular array, and reagent boxes are loaded on the reagent box loading positions; an online replacement window and a manual replacement window are arranged on the reagent tray cover;

The reagent box storage module is arranged above the edge of the reagent disc cover and adjacent to the online replacement window, and comprises at least two reagent box storage positions;

the online replacement mechanism takes and places the reagent kit from the reagent bin and/or the reagent kit storage module;

The online replacement mechanism comprises a Y-axis moving module, a Z-axis moving module and a clamping jaw module, wherein the Z-axis moving module is connected with the Y-axis moving module, and the clamping jaw module is connected with the Z-axis moving module; the Y-axis moving module drives the Z-axis moving module and the clamping jaw module to move along the Y-axis direction, the Z-axis moving module drives the clamping jaw module to move along the Z-axis direction, and the clamping jaw module clamps or releases the reagent kit from the reagent bin and/or the reagent kit storage module.

According to the utility model, the bottom of the reagent disk is fixedly or detachably arranged on a rack carrying the online reagent box replacing device; the bottom of the online replacement mechanism is fixedly arranged on the frame.

According to the utility model, the Y-axis moving module comprises a first driving part, a first moving part and a first main body part, wherein the first main body part is fixedly arranged on a rack through bolts, the first driving part and the first moving part are arranged on the first main body part, and the first driving part drives the first moving part to move along the Y-axis direction;

The Z-axis moving module comprises a second driving part, a second moving part and a second main body part, wherein the second main body part is connected with the first moving part of the Y-axis moving module, the second driving part and the second moving part are arranged on the second main body part, and the second driving part drives the second moving part to move along the Z-axis direction;

The clamping jaw module comprises a third driving part, a third moving part and a third main body part, wherein the third main body part is connected with a second moving part of the Z-axis moving module, the third driving part and the third moving part are arranged on the third main body part, and the third driving part drives the third moving part to grab or release the kit.

According to the utility model, the first driving part of the Y-axis moving module comprises a first stepping motor, a synchronous belt and a synchronous wheel, and the first moving part comprises a first sliding rail and a first sliding block in the Y-axis direction;

The synchronous wheel comprises a driving wheel and a driven wheel, the driving wheel and the driven wheel are respectively connected to the first main body part through rotating parts, and the driving wheel and the driven wheel are connected through a synchronous belt; the output end of the first stepping motor is fixedly connected with the driving wheel through a jackscrew, the first stepping motor works to drive the driving wheel to rotate, and the driven wheel is driven to rotate through a synchronous belt;

the first sliding rail is fixedly connected to the first main body part, the first sliding block is in sliding connection with the first sliding rail, the first sliding block is in clamping connection with the synchronous belt, and the first sliding block reciprocates on the first sliding rail along the Y-axis direction under the transmission action of the synchronous belt;

The second main body part of the Z-axis moving module is fixedly connected with the first sliding block and moves along the Y-axis direction along with the first sliding block on the first sliding rail.

According to the utility model, the second driving part in the Z-axis moving module comprises a second stepping motor and a screw rod which are connected to the second main body part; the second moving part comprises a second sliding rail and a second sliding block in the Z-axis direction;

The screw rod is rotationally connected to the second main body part, the output end of the second stepping motor is connected with one end of the screw rod, threads are arranged on the screw rod, the second sliding block is connected to the screw rod through the threads, the second sliding block is in sliding connection with the second sliding rail, and the second stepping motor drives the screw rod to rotate under the control of an electric signal and drives the second sliding block to move on the second sliding rail along the Z-axis direction;

The third main body part of the clamping jaw module is fixedly connected with the second sliding block and moves along the Z-axis direction on the second sliding rail along with the second sliding block.

According to the utility model, the third driving part in the clamping jaw module comprises a third stepping motor and an inclined block, and the third moving part comprises a third sliding rail, a third sliding block, a connecting rod, a rotating shaft and a clamping finger;

The motor shaft of the third stepping motor extends out of the third stepping motor and is connected with the inclined block, and the motor shaft drives the inclined block to do extension and retraction movement relative to the third stepping motor under the control of an electric signal;

the third sliding rail comprises a third left sliding rail and a third right sliding rail, the third left sliding rail and the third right sliding rail are respectively connected with the third main body part, the third sliding block comprises a third left sliding block and a third right sliding block, the third left sliding block is in sliding connection with the third left sliding rail, and the third right sliding block is in sliding connection with the third right sliding rail;

The connecting rod comprises a first connecting rod and a second connecting rod, the rotating shafts comprise a first rotating shaft, a second rotating shaft and a third rotating shaft, the first connecting rod and the second connecting rod are of L-shaped structures, one L-shaped ends of the first connecting rod and the second connecting rod are respectively connected with the inclined block in a rotating way through the third rotating shaft, the first connecting rod is connected with the first rotating shaft in an L-shaped turning position of the first connecting rod in a rotating way, and the other L-shaped end of the first connecting rod is connected with the third left sliding block; the second connecting rod is rotationally connected with the second rotating shaft at the L-shaped turning part of the second connecting rod, and the other L-shaped end of the second connecting rod is connected with the third right sliding block;

The third left sliding block and the third right sliding block are respectively connected with two gripper fingers;

The inclined block drives the third rotating shaft to move relative to the third stepping motor, so that the first connecting rod and the second connecting rod are driven to rotate, the third left sliding block and the third right sliding block are driven to do outward or inward parallel movement on the third left sliding rail and the third right sliding rail respectively, and the gripper fingers connected with the third left sliding block and the third right sliding block also move along with the inclined block, so that the loosening or kneading action of the gripper fingers is completed.

According to the utility model, the Y-axis moving module further comprises a first drag chain for protecting the wire harness in the Y-axis moving module, and the Z-axis moving module further comprises a second drag chain for protecting the wire harness in the Z-axis moving module.

According to the utility model, the kit storage module comprises a plurality of kit storage positions;

One of the reagent box placing positions is used as a buffer position for temporarily storing empty reagent boxes unloaded from the reagent disk, and the other reagent box placing positions are used as replacement positions for storing the empty reagent boxes taken out from the buffer position; or alternatively

For storing new kits to be loaded into the reagent tray.

According to the utility model, the online replacement window and the manual replacement window on the reagent tray cover are respectively provided with an online replacement window cover and a manual replacement window cover.

According to the utility model, the reagent tray cover is also provided with an on-line replacement window cover temporary storage position.

The online kit replacing device has the beneficial effects that:

The reagent box storage modules are arranged above the edges of the reagent disc covers in a linear arrangement mode instead of a disc arrangement mode, so that the occupied space is small, the manual replacement position is not blocked, and a plurality of reagent box storage positions can be arranged; only the reagent box storage module is arranged on the reagent disc cover, but not the whole online replacement mechanism is arranged on the reagent disc cover, so that the pressure of the reagent disc cover is reduced, and the problem of difficult disassembly and maintenance of the reagent disc cover is avoided; the mode that snatchs single kit and changes is set up and is not pushed in whole of a set of kit and changes, maneuverability and flexibility are stronger.

Drawings

The utility model may be better understood by referring to the following description in conjunction with the accompanying drawings in which the same or similar reference numerals are used throughout the several drawings to designate the same or similar components.

FIG. 1 is a schematic diagram of an on-line reagent kit replacing device according to the present utility model;

FIG. 2a is a schematic view of the open state of the reagent cartridge of the present utility model;

FIG. 2b is a schematic illustration of the closed state of the reagent cartridge of the present utility model;

FIG. 3 is a schematic diagram of the on-line reagent cassette changing mechanism and the reagent cassette storing module in FIG. 1;

FIG. 4 is a schematic diagram of the Y-axis moving module in FIG. 1;

FIG. 5a is a schematic view showing a screw cover of the Z-axis moving module of FIG. 1 being closed;

FIG. 5b is a schematic view of the Z-axis movement module of FIG. 1 with the screw cap open;

FIG. 6a is a schematic view of the jaw module of FIG. 1;

FIG. 6b is a schematic cross-sectional view of the jaw module of FIG. 1;

fig. 7 is a schematic structural view of the kit storage module of fig. 1.

In the figure: A. a kit changing mechanism; B. a reagent bin; 1. a Y-axis moving module; 2. a Z-axis moving module; 3. a jaw module; 4. a kit storage module; 5. a reagent tray cover; 6. a reagent tray; 7. a frame;

100. A first stepping motor; 101. a driving wheel; 102. driven wheel; 103. a synchronous belt; 110. a first slide rail; 111. a first slider; 112. a limiting plate; 113. a first tow chain; 114. a code wheel optocoupler; 115. an origin sensor; 12. a first body member; 121. an upper base plate; 122. a lower base plate; 123. a column;

201. A second stepping motor; 202. a screw rod; 203. a screw cap; 210. a second slide rail; 211. a second slider; 212. a second tow chain; 220. a base; 221. a top plate; 222. a vertical plate;

301. A third stepper motor; 302. a motor shaft; 303. a sloping block; 310. a third right slide rail; 311. a third left slider; 312. a third right slider; 313. a first rotating shaft; 314. a second rotating shaft; 315. a third rotating shaft; 316. a first link; 317. a second link; 318. a finger grip; 32. a third body member; 321. a first body plate; 322. a second body plate; 323. a third body plate; 324. a fourth body plate; 325. a spring pin fixing seat; 326. a spring pin; 327. a gripper optocoupler; 328. zero position baffle; 329. a bayonet;

401. a kit placement seat; 402. a kit base; 403. a kit support column;

501. replacing the window on line; 502. replacing the window cover on line; 503. replacing the temporary storage position of the window cover on line; 504. manually replacing the window cover; 505. the window is manually replaced.

Detailed Description

In order that those skilled in the art will more fully understand the technical solutions of the present utility model, exemplary embodiments of the present utility model will be described more fully and in detail below with reference to the accompanying drawings. It should be apparent that the following description of one or more embodiments of the utility model is merely one or more of the specific ways in which the technical solutions of the utility model may be implemented and is not intended to be exhaustive. It should be understood that the technical solution of the present utility model may be implemented in other ways belonging to one general idea, and should not be limited by the exemplary described embodiments. All other embodiments, which may be made by one or more embodiments of the utility model without inventive faculty, are intended to be within the scope of the utility model.

Structure of on-line replacement device for reagent kit of example

Fig. 1 is a schematic structural diagram of an online kit replacing device according to the present utility model. The on-line reagent box replacing device comprises a reagent bin B, a reagent box storage module 4 and an on-line reagent replacing mechanism A, wherein the on-line reagent box replacing mechanism A comprises a Y-axis moving module 1, a Z-axis moving module 2 and a clamping jaw module 3, the reagent bin B comprises a reagent disc 6 and a reagent disc cover 5, and the reagent disc cover 5 is covered on the reagent disc 6.

The reagent box storage module 4 is arranged on the reagent tray cover 5 and is connected with the online replacement mechanism A, and the online replacement mechanism A and the reagent bin B are arranged on the rack 7.

1. As shown in fig. 2a and 2B, the structure of the reagent cartridge B in fig. 1 is schematically shown. The structure of the reagent bin B is as follows:

A plurality of reagent box loading positions are distributed in the reagent disk 6 in an annular array mode, and reagent boxes are loaded on the reagent box loading positions; an online replacement window 501 and a manual replacement window 505 are arranged on the reagent tray cover 5, the online replacement window 501 is used for online replacement of the reagent kit, the manual replacement window 505 is used for manual replacement of the reagent kit, and the online replacement window 501 and the manual replacement window are respectively provided with an online replacement window cover 502 and a manual replacement window cover 504; the reagent tray cover 5 is also provided with an online replacement window cover temporary storage position 503 for temporarily storing the online replacement window cover 502.

In fig. 2a, the online replacement window cover 502 and the manual replacement window cover 504 on the reagent tray cover 5 are both in an open mode; in fig. 2b, both the online replacement window cover 502 and the manual replacement window cover 504 on the reagent tray cover 5 are in a closed mode. Under normal conditions, the manual replacement window cover 504 is in a closed mode, and when the manual replacement of the reagent kit is required, the manual replacement window cover 504 can be opened for replacement operation; the online replacement window cover 502 is in a closed mode and is used for keeping the sealing of the reagent chamber and preventing a pollution source from entering the reagent chamber to pollute the reagent box; when the automatic reagent box replacement operation is needed, the clamping jaw module 3 clamps the online replacement window cover 502 to be placed at the online replacement window cover temporary storage position 503, so that the clamping jaw module 3 can take and place the reagent box conveniently.

2. As shown in fig. 3, the online replacement mechanism (i.e., part a in fig. 1) and the cartridge storage module 4 are schematically structured. The online replacement mechanism A comprises a Y-axis moving module 1, a Z-axis moving module 2 and a clamping jaw module 3.

(1) As shown in fig. 4, a schematic structure of the Y-axis moving module 1 is shown. The structure of the Y-axis moving module 1 is as follows:

The Y-axis moving module 1 comprises a first driving part, a first moving part and a first main body part 12, wherein the first main body part 12 is fixedly arranged on the frame 7 through bolts, the first driving part and the first moving part are arranged on the first main body part 12, and the first driving part drives the first moving part to move along the Y-axis direction.

The first body part 12 includes an upper base plate 121, a lower base plate 122 and stand columns 123, 4 stand columns 123 are disposed between the upper base plate 121 and the lower base plate 122, and the stand columns 123 are fixedly connected between the upper base plate 121 and the lower base plate 122 through bolts.

The first driving part comprises a first stepping motor 100, a synchronous belt 103 and a synchronous wheel, wherein the synchronous wheel comprises a driving wheel 101 and a driven wheel 102. The driving wheel 101 and the driven wheel 102 are respectively positioned at two ends of the upper bottom plate 121 in the length direction and are respectively connected with the upper bottom plate 121 in a rotating way; a synchronous belt 103 is arranged between the driving wheel 101 and the driven wheel 102, and the synchronous belt 103 is in meshed connection with the outer surfaces of the driving wheel 101 and the driven wheel 102. The driving wheel 101 is connected with a power output shaft of the first stepping motor 100 through a jackscrew, and the first stepping motor 100 drives the driving wheel 101 to rotate and drives the driven wheel 102 to rotate through a synchronous belt 103.

The first moving part includes a first slide rail 110 and a first slider 111 in the Y-axis direction. The length direction of the first sliding rail 110 is consistent with the length direction of the upper bottom plate 121, and is fixedly connected to the upper surface of the upper bottom plate 121 by bolts or welding; the first sliding rail 110 is slidably connected with a first sliding block 111, the first sliding block 111 is L-shaped, a horizontal section of the first sliding block 111 is consistent with a length direction of the first sliding rail 110, and a vertical section of the first sliding block 111 extends to a side surface of the upper base plate 121.

The first slider 111 is in clamping connection with the synchronous belt 103 through a clamping plate arranged below the horizontal section of the first slider 111, and the synchronous belt 103 drives the first slider 111 to perform reciprocating sliding motion between the driving wheel 101 and the driven wheel 102 along the length direction of the first sliding rail 110.

The working principle of the technical scheme is as follows: the first stepper motor 100 converts the electric pulse control signal into angular displacement after receiving the electric pulse control signal, drives the driving wheel 101 to rotate, drives the synchronous belt 103 to move between the synchronous wheels, and also drives the first sliding block 111 connected with the synchronous belt 103 to move along the Y-axis between the synchronous wheels.

The upper bottom plate 121 is fixedly connected with a code wheel optocoupler 114 by-passing the driving wheel 101 through a bolt, the driven wheel 102 is fixedly connected with an origin sensor 115 by-passing the bolt, and the code wheel optocoupler 114 and the origin sensor 115 are matched with the first stepping motor 100 to control the distance and the speed of the first sliding block 111 moving on the first sliding rail 110 along the Y-axis direction.

The end face of the vertical section of the first slider 111 is fixedly connected with a limiting plate 112, the limiting plate 112 extends between the upper bottom plate 121 and the lower bottom plate 122 along the side surface of the upper bottom plate 121, and a first drag chain 113 is fixedly connected to the tail end of the limiting plate 112, the end of the first drag chain 113 is fixedly connected with the lower bottom plate 122 through a bolt, and the first drag chain 113 is used for protecting a wire harness in the Y-axis mobile module mechanism.

(2) As shown in fig. 5a and 5b, a schematic structural diagram of the Z-axis moving module 2 is shown. The structure of the Z-axis moving module 2 is as follows:

The Z-axis moving module 2 comprises a second driving part, a second moving part and a second main body part, wherein the second main body part is connected with the first moving part of the Y-axis moving module 1, the second driving part and the second moving part are arranged on the second main body part, and the second driving part drives the second moving part to move along the Z-axis direction.

The second main body part comprises a base 220, a top plate 221 and a vertical plate 222, all parts of the second main body part are connected in a welded mode or are fixedly connected through bolts, and the base 220 is fixedly connected with the first sliding block 111 on the Y-axis moving module 1 through bolts.

The second driving part comprises a second stepping motor 201 and a screw 202; the second stepper motor 201 is fixedly connected to the base 220 through a bolt, the bottom end of the screw rod 202 is connected with a power output shaft of the second stepper motor 201, and the top end of the screw rod is connected with the top plate 221 through threads.

The second moving part comprises a second sliding rail 210 and a second sliding block 211 in the Z-axis direction; the second sliding rail 210 is fixedly connected with the vertical plate 222 through a bolt in the Z-axis direction, the second sliding block 211 is connected with the second sliding rail 210 in a sliding manner on the second sliding rail 210, the second sliding block 211 is connected with a nut, the screw rod 202 is provided with threads, and the second sliding block 211 is connected with the screw rod 202 through the nut and the threads arranged on the screw rod 202.

The working principle of the technical scheme is as follows: the second stepping motor 201 receives the electric pulse control signal and drives the screw rod 202 to perform a rotary motion, the screw rod 202 converts the rotary motion into a linear motion, and drives the second slider 211 to perform a linear reciprocating motion along the length direction of the second sliding rail 210, thereby converting the electric signal into a linear displacement.

Still be equipped with the lead screw cover 203 between base 220 and the roof 221, lead screw cover 203 lower extreme passes through bolt fixed connection with base 220, and upper end and roof 221 pass through bolt fixed connection, and lead screw cover 203 plays the effect of protection lead screw 202, avoids the lead screw to receive external dirt destruction in the course of the work, influences lead screw surface accuracy, and then influences transmission efficiency.

The second slider 211 is fixedly connected with one end of the second drag chain 212 through a bolt, the other end of the second drag chain 212 is fixedly connected with the vertical plate 222 through a bolt, and the second drag chain 222 is used for protecting a wire harness in the Z-axis moving module mechanism.

(3) As shown in fig. 6a and 6b, a schematic structural diagram of the jaw module 3 and its cross section is shown. The structure of the jaw module 3 is as follows:

The clamping jaw module 3 comprises a third driving part, a third moving part and a third main body part 32, wherein the third main body part 32 is connected with the second moving part of the Z-axis moving module 2, the third driving part and the third moving part are arranged on the third main body part 32, and the third driving part drives the third moving part to grab and release the kit.

The third body member 32 is composed of a first body plate 321, a second body plate 322, a third body plate 323 and a fourth body plate 324, the second body plate 322 and the third body plate 323 are arranged between the first body plate 321 and the fourth body plate 324 in parallel in a manner of being perpendicular to the first body plate 321 and the fourth body plate 324, each part of the third body member 32 is fixedly connected by welding or bolts respectively, and the first body plate 321 is fixedly connected with the second slider 211 on the Z-axis moving module 2 through bolts.

The third driving part comprises a third stepping motor 301 and an inclined block 303, and the third stepping motor 301 is fixedly connected with the first main body plate 321 through bolts; the motor shaft 302 of the third stepping motor 301 is connected to the bevel block 303 by screw threads after being extended from the third stepping motor 301.

The third moving part comprises a third sliding rail, a third sliding block, a hand-grabbing finger 318, a rotating shaft and a connecting rod; the third sliding rail comprises a third left sliding rail and a third right sliding rail 310, the third sliding block comprises a third left sliding block 311 and a third right sliding block 312, the rotating shafts comprise a first rotating shaft 313, a second rotating shaft 314 and a third rotating shaft 315, and the connecting rods comprise a first connecting rod 316 and a second connecting rod 317.

The third left sliding rail and the third right sliding rail 310 are respectively disposed on the bottom surface of the fourth main body board 324, the third left sliding block 311 is slidably connected with the third left sliding rail, and the third right sliding block 312 is slidably connected with the third right sliding rail 310. The third left slider 311 and the third right slider 312 are respectively connected with two gripper fingers.

The inclined block 303 is provided with a circular hole, corresponding positions of the first connecting rod 316 and the second connecting rod 317 are also provided with semicircular or circular apertures, the third rotating shaft 315 sequentially passes through the apertures of corresponding positions of the inclined block 303, the first connecting rod 316 and the second connecting rod 317 to connect the three, and the third rotating shaft 315 can rotate relative to the third rotating shaft 315 while being erected in the elongated apertures of the second main body plate 322 and the third main body plate 323.

The first connecting rod 316 and the second connecting rod 317 are both L-shaped structures, and are symmetrically distributed on two sides of the motor shaft 302 of the third stepper motor 301, one end of the first connecting rod 316 is rotatably connected with the inclined block 303 through the third rotating shaft 315, the other end of the first connecting rod 316 passes through the fourth main body plate 324 to be connected with the third left sliding block 311, one end of the second connecting rod 317 is rotatably connected with the inclined block 303 through the third rotating shaft 315, and the other end of the second connecting rod 317 passes through the fourth main body plate 324 to be connected with the third right sliding block 312; the L-shaped turning parts of the first connecting rod 316 and the second connecting rod 317 are respectively provided with a circular aperture, the corresponding positions of the second main body plate 322 and the third main body plate 323 are also provided with circular apertures, and the first rotating shaft 313 sequentially passes through the circular apertures on the second main body plate 322, the first connecting rod 316 and the third main body plate 323 to connect the three, and the first connecting rod 316 rotates around the first rotating shaft 313; the second rotating shaft 314 sequentially passes through the circular apertures of the second body plate 322, the second link 317 and the third body plate 323 to connect the three, and the second link 317 is rotated around the second rotating shaft 314.

The working principle of the technical scheme is as follows: the third stepper motor 301 drives the motor shaft 302 to move, and the inclined block 303 moves linearly and reciprocally along with the third stepper motor 301 within a small range, and the third rotary shaft 315 moves between the second main body plate 322 and the third main body plate 323 along with the inclined block 303 along with the elongated apertures provided on the second main body plate 322 and the third main body plate 323, so as to drive the first link 316 and the second link 317 to rotate relative to the third rotary shaft 315, thereby driving the third left slider 311 and the third right slider 312 to respectively move in parallel along the third left slide rail and the third right slide rail 310 outwards or inwards, and the gripper fingers 318 connected with the third left slider 311 and the third right slider 312 also complete the loosening or kneading actions.

The fourth main body plate 324 is connected with a spring pin fixing seat 325 through bolts below the fourth main body plate, and the spring pin fixing seat 325 is respectively connected with four spring pins 326 with threads through screw threads and screw holes through screw holes arranged on the spring pin fixing seat 325; the spring pin 326 is used for limiting the height of the reagent kit from the upper part when the reagent kit is grabbed by the grabbing fingers 318, so that the grabbing fingers 318 are clamped with the reagent kit when grabbing the reagent kit, and meanwhile, the requirements of grabbing different types of reagent kits by the grabbing fingers 318 can be met through the arrangement of the spring pin 326.

The fourth main body plate 324 is further connected with a gripper optocoupler 327 through bolts, the third left slider 311 and the third right slider 312 are respectively connected with a zero position blocking piece 328 through bolts, and bayonets 329 are respectively arranged below the gripper optocoupler 327 and are used for being clamped with the zero position blocking piece 328;

The jaw module comprises 4 gripper fingers 318, and the spring pins 326 are respectively provided with 4 positions corresponding to the gripper fingers 318. The gripper optocoupler 327, the zero-position blocking piece 328 and the bayonet 329 are respectively provided with a left gripper optocoupler and a right gripper optocoupler.

Matching the working principle: when the gripper fingers 318 are opened outwards, the left zero-position blocking piece 328 moves leftwards along with the third left sliding block 311 to be clamped with the bayonet 329 below the left gripper optocoupler 327, namely expands to the maximum extent, the gripper optocoupler 327 releases signals, the third stepping motor 300 stops moving, and the outwards expanding action of the gripper fingers 318 stops;

When the gripper finger 318 is closed inwards, the zero stop 328 on the right moves inwards along with the third right slider 312 to be engaged with the bayonet 329 below the right gripper optocoupler 327, that is, closed to the maximum extent, the gripper optocoupler 327 releases the signal, the third stepper motor 300 stops moving, and the inwards closing action of the gripper finger 318 stops.

(4) As shown in fig. 7, a schematic structure of the cartridge storage module 4 is shown. The structure of the kit storage module 4 is as follows:

The kit storage module 4 comprises a kit placement seat 401, the kit placement seat 401 is fixedly or detachably connected with a kit base 402 through three kit support columns 403, the kit base 402 is fixedly or detachably connected with a lower bottom plate 122 of the Y-axis moving module 1 through another kit support column 403, and the kit base 402 is fixedly connected with an upper bottom plate 121 of the Y-axis moving module 1 through bolts.

The kit placement seat 401 comprises at least 2 kit placement positions, the kit placement seat 401 in the embodiment comprises 6 kit placement positions, the number 1 of the 6 kit placement positions is a cache position, and the kit placement positions are used for temporarily storing the kit taken out from the kit tray 6, wherein the number 1 of the 6 kit placement positions is numbered 1-6; the positions 2-6 are replacement positions for storing new kits or kits taken out from the kit tray 6.

3. As shown in fig. 1 to 7, the connection relationship between the parts of the kit in-line replacement device of the present utility model is as follows:

The base 220 of the Z-axis moving module 2 is connected with the first slider 111 on the Y-axis moving module 1 through a bolt, the first body plate 321 of the clamping jaw module 3 is connected with the second slider 211 on the Z-axis moving module 2 through a bolt, the movement of the clamping jaw module 3 and the Z-axis moving module 2 in the Y-axis direction is controlled through the movement of the first slider 111 in the Y-axis direction, and the movement of the clamping jaw module 3 in the Z-axis direction is controlled through the movement of the second slider 211 in the Z-axis direction.

The reagent disk 6 is mounted on the frame 7 through bolts; the lower bottom plate 121 of the Y-axis mobile module 1 is fixedly arranged on the frame 7 through bolts; the reagent box storage module 4 is connected with the Y-axis moving module 1 through a reagent box base 402 and a reagent box supporting column 403, and the bottom surface of the reagent box storage seat 401 is connected with the reagent disc cover 5 in a matching way.

4. The cooperative matching process of all the components in the online kit replacement device is as follows:

When the online replacement signal of the kit is started, the first stepping motor 100 of the Y-axis moving module 1 is started, positioning is carried out on the Y-axis by means of the code wheel optocoupler 114 and the origin sensor 115, and the clamping jaw module 3 and the Z-axis moving module 2 move to transverse positioning points along the Y-axis direction under the drive of the first sliding block 111;

The second stepping motor 201 of the Z-axis moving module 2 is started and positioned, and the clamping jaw module 3 is driven by the second sliding block 211 to move to a longitudinal positioning point along the Z-axis direction;

The third stepping motor 301 of the clamping jaw module 3 is started to drive the hand fingers 318 to pinch inwards to grab the online replacement window cover 502 or the reagent kit, the reagent kit moves to a target positioning point under the common control of the Z-axis moving module 2 and the Y-axis moving module 1, and the third stepping motor 301 drives the hand fingers 318 to loosen outwards, so that the online replacement window cover 502 or the reagent kit can be unloaded.

The foregoing is merely a preferred embodiment of the utility model, and it should be noted that modifications and enhancements can be made by those skilled in the art without departing from the principles of the present utility model. Such modifications and variations are also considered to be a departure from the scope of the utility model.

Claims

1. The on-line reagent box replacing device is characterized by comprising a reagent bin, a reagent box storage module and an on-line reagent box replacing mechanism;

2. The online reagent kit replacing device according to claim 1, wherein the bottom of the reagent tray is fixedly or detachably mounted on a frame carrying the online reagent kit replacing device; the bottom of the online replacement mechanism is arranged on the frame.

3. The online reagent kit replacing device according to claim 1, wherein the Y-axis moving module comprises a first driving part, a first moving part and a first main body part, the first main body part is fixedly installed on the frame through bolts, the first driving part and the first moving part are installed on the first main body part, and the first driving part drives the first moving part to move along the Y-axis direction;

4. The online reagent kit replacing device according to claim 3, wherein the first driving part in the Y-axis moving module comprises a first stepping motor, a synchronous belt and a synchronous wheel, and the first moving part comprises a first sliding rail and a first sliding block in the Y-axis direction;

5. The kit online replacement apparatus according to claim 3 or 4, wherein the second driving part in the Z-axis moving module includes a second stepping motor and a screw coupled to the second body part; the second moving part comprises a second sliding rail and a second sliding block in the Z-axis direction;

6. The online reagent kit replacing device according to claim 3 or 4, wherein the third driving part in the clamping jaw module comprises a third stepping motor and an inclined block, and the third moving part comprises a third sliding rail, a third sliding block, a connecting rod, a rotating shaft and a clamping finger;

The motor shaft of the third stepping motor extends out of the third stepping motor and is connected with the inclined block, and the motor shaft drives the inclined block to extend and retract relative to the third stepping motor seat under the control of an electric signal;

7. The online kit replacing device according to claim 1, wherein the Y-axis moving module further comprises a first drag chain for protecting the wire harness in the module, and the Z-axis moving module further comprises a second drag chain for protecting the wire harness in the module.

8. The online kit replacing device according to claim 1 or 7, wherein the kit storage module comprises a plurality of kit placement positions;

For storing new kits to be loaded into the reagent tray.

9. The online reagent kit replacing apparatus according to claim 1, wherein the online replacing window and the manual replacing window on the reagent tray cover are provided with an online replacing window cover and a manual replacing window cover, respectively.

10. The online reagent kit replacing device according to claim 1 or 9, wherein the reagent tray cover is further provided with an online replacing window cover temporary storage position.