CN214750372U

CN214750372U - Automatic analyzer and sampling device thereof

Info

Publication number: CN214750372U
Application number: CN202022177542.XU
Authority: CN
Inventors: 钟科苑; 郭传喜; 张平; 陈新基
Original assignee: Edan Instruments Inc
Current assignee: Edan Instruments Inc
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-11-16
Anticipated expiration: 2030-09-28

Abstract

The application provides an automatic analyzer and sampling device thereof, this sampling device includes backup pad, swing support and swing pivot, and the backup pad is equipped with the arc wall, and the swing support is located one side of backup pad and is connected with the gag lever post that stretches into the arc wall, and the swing pivot passes the backup pad and fixes mutually with the swing support, drives the relative backup pad of swing support and swings when the swing pivot rotates. The application provides a sampling device's swing bracket passes through swing pivot swivelling joint in the backup pad for sampling needle lifting unit on swing bracket and the swing bracket can be along the arc wall swing in the backup pad along the swing pivot, has the support of backup pad when the swing, has enlarged swing bracket's holding surface, thereby makes swing bracket stability better at the swing in-process, and then guarantees that sampling needle lifting unit can accomplish the sampling in the position of difference more accurately.

Description

Automatic analyzer and sampling device thereof

Technical Field

The utility model relates to a medical treatment detection and analysis technical field, concretely relates to automatic analyzer and sampling device thereof.

Background

With the development of test modernization and automation, the current blood detection and analysis can be automatically completed by a machine. The blood automatic analyzer not only improves the accuracy of experimental results, but also provides a plurality of experimental indexes and plays an important role in disease diagnosis, so that the blood automatic analyzer is one of instruments which are widely applied to clinical examination in hospitals. The sampling device mainly comprises a swing mechanism and a sampling needle assembly on the swing framework of the swing mechanism, and the sampling needle assembly can perform sampling at different positions by swinging of the swing mechanism. However, in the prior art, the sampling needle assembly structure is not swung in a swinging process for limitation, so that the sampling needle assembly has poor stability in swinging, and accurate sampling of the sampling needle is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides an automatic analyzer and sampling device thereof to it is spacing not swinging at the swing in-process to solve sampling needle subassembly structure among the prior art, leads to the poor stability of sampling needle subassembly when the swing, influences the technical problem of the accurate sampling of sampling needle.

In order to solve the technical problem, the utility model discloses a technical scheme be: there is provided a sampling device comprising: backup pad, swinging arms and swing pivot, the backup pad is equipped with the arc wall, and the swinging arms is located one side of backup pad and is connected with the gag lever post that stretches into the arc wall, and the swing pivot passes the backup pad and is fixed mutually with the swinging arms, drives the relative backup pad of swinging arms and swings when the swing pivot rotates.

According to the utility model relates to a concrete embodiment, sampling device includes motor support and pendulum position motor, and motor support is fixed mutually with the backup pad, and the pendulum position motor passes through motor support fixed mounting, and the pendulum position motor is used for driving swing pivot corotation or reversal and then drives the relative backup pad of swing support and swings.

According to the utility model discloses a concrete embodiment, sampling device is including locating the auxiliary assembly spare in the backup pad, and the auxiliary assembly spare includes the sleeve part and locates the flange portion of sleeve part one end, and the sleeve part runs through the backup pad, and the swing pivot passes the sleeve part, and the flange portion is fixed mutually with the backup pad and is located between backup pad and the swing support.

According to the utility model relates to a specific embodiment, sampling device includes driving gear and sector gear, and the driving gear is connected with the pendulum motor, and sector gear's centre of a circle angle region is fixed mutually with the swing pivot, and sector gear's arc limit region and driving gear meshing, pendulum motor are used for swinging through driving gear, sector gear, swing pivot drive swing bracket.

According to the utility model discloses a concrete embodiment, the swing pivot includes the cylinder portion and connects in the screw rod portion of cylinder portion first end, cylinder portion and sleeve part phase-match, and screw rod portion passes the swing bracket and locks in order to be fixed mutually with the swing bracket through the nut, and the second end of cylinder portion is fixed mutually through the central angle region of screw and sector gear.

According to the utility model relates to a concrete embodiment, the arc wall includes first arc wall and second arc wall, and the gag lever post is including the first gag lever post that stretches into first arc wall and the second gag lever post that stretches into the second arc wall, and sampling device includes the direction stopper, and the direction stopper is connected with the second gag lever post, and the direction stopper is equipped with the guide way on the plane direction of backup pad, and the guide way is in second arc wall department and backup pad direction cooperation.

According to the utility model discloses a concrete embodiment, the one end of second arc wall has the assembly mouth, and the direction stopper assembles so that guide way and backup pad looks gomphosis through the assembly mouth.

According to the utility model relates to a specific embodiment, sampling device still includes slide rail, slider, fixing base, the slide rail is fixed in one side that the swing bracket deviates from the flange portion, and on the slide rail was located to the slider slidability, the fixing base was fixed mutually with the slider and was used for fixed sampling needle.

According to the utility model relates to a concrete embodiment, the swing support is including the first folded plate and the second folded plate of buckling connection, first folded plate is connected with the swing pivot, the slide rail is fixed in on the first folded plate, sampling device still includes elevator motor, the action wheel, from the driving wheel, the hold-in range, the briquetting, elevator motor installs on the second folded plate, elevator motor's output is located to the action wheel, locate on the second folded plate from the driving wheel, the hold-in range cover is located the action wheel and is followed between the driving wheel, briquetting and fixing base, the hold-in range is fixed mutually, elevator motor is used for through the hold-in range, briquetting transmission fixing base is so that the relative swing support of sampling needle carries out elevating movement.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides an automatic analyzer, this automatic analyzer includes casing and aforementioned sampling device, and sampling device locates in the casing.

The utility model has the advantages that: be different from prior art's condition, the swing bracket of the sampling device that this application provided passes through swing pivot swivelling joint in the backup pad for sampling needle lifting unit on swing bracket and the swing bracket can be along the arc wall swing in the backup pad along the swing pivot, has the support of backup pad when the swing, has enlarged swing bracket's holding surface, thereby makes swing bracket better at swing in-process stability, and then guarantees that sampling needle lifting unit can accomplish the sampling in the position of difference more accurately.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments 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 other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is a schematic front perspective view of a sampling device provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a back part of a sampling device provided in an embodiment of the present invention;

fig. 3 is a schematic view of another back view of the sampling device according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a sampling needle lifting assembly of the sampling device provided by the embodiment of the present invention;

fig. 5 is a schematic view of the sampling position No. 1 of the sampling device provided in the embodiment of the present invention;

fig. 6 is a schematic diagram of the sampling position No. 2 of the sampling device provided in the embodiment of the present invention;

fig. 7 is a schematic diagram of No. 3 sampling positions of the sampling device provided by the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 3, fig. 1 is a schematic diagram of a front structure of a sampling device according to an embodiment of the present invention, fig. 2 is a schematic diagram of a back partial structure of the sampling device according to an embodiment of the present invention, and fig. 3 is a schematic diagram of another back view angle of the sampling device according to an embodiment of the present invention. The embodiment of the utility model provides a sampling device 1, this sampling device 1 includes swing mechanism 100, sampling needle lifting unit 200 and the spacing subassembly 300 of direction. The sampling needle lifting assembly 200 is mounted on the swing mechanism 100, and the swing mechanism 100 is used to swing the sampling needle lifting assembly 200, in this embodiment, the swing mechanism 100 drives the sampling needle lifting assembly 200 to complete sampling at three different positions. Sampling needle lifting unit 200 is used for realizing the lifting and lowering sampling of sampling needle 400, and the spacing subassembly 300 setting of direction is at the tail end of sampling needle lifting unit 200, can avoid the tail end of sampling needle lifting unit 200 to stick up or sunken, but the whole sampling needle lifting unit 200's of greatly increased stability.

The swing mechanism 100 includes a support plate 110, an auxiliary assembly 120, a swing rotation shaft 130, and a swing motor assembly 140. The positioning motor assembly 140 includes a positioning motor 141 and a motor bracket 142, the motor bracket 142 is fixed to the support plate 110, and the positioning motor 141 is fixedly mounted through the motor bracket 142. The sampling needle elevating assembly 200 includes a swing bracket 210, the swing bracket 210 is located at one side of the support plate 110, the auxiliary assembly 120 includes a flange portion 121 and a sleeve portion 122, the flange portion 121 is disposed at one end of the sleeve portion 122, the sleeve portion 122 penetrates through the support plate 110, the flange portion 121 is fixed to the support plate 110 and located between the support plate 110 and the swing bracket 210, and the swing rotating shaft 130 penetrates through the sleeve portion 122 and is fixed to the swing bracket 210. The swing motor 141 drives the swing shaft 130 to rotate forward or backward to drive the swing bracket 210 to swing relative to the support plate 110.

In this embodiment, the swing mechanism 100 further includes a driving gear 150 and a sector gear 160, the driving gear 150 is connected to the swing motor 141, the sector gear 160 is fixed to the swing shaft 130 by a screw, and the sector gear 160 may be a plastic part. The central angle area 161 of the sector gear 160 is fixed to the swing shaft 130, the arc-shaped edge area 162 of the sector gear 160 is engaged with the driving gear 150, when the positioning motor 141 works, the driving gear 150 connected to the positioning motor is driven to rotate forward or backward, so that the sector gear 160 engaged with the driving gear 150 also rotates forward or backward, the swing shaft 130 is driven to rotate forward or backward, one end of the swing shaft 130 is fixed to the swing bracket 210, the swing bracket 210 can be driven to swing in a specified direction on the support plate 110, the sampling needle lifting assembly 200 can be driven to swing in the specified direction on the support plate 110, and the swing action of the sampling needle lifting assembly 200 is completed by the support of the auxiliary assembly 120 fixed to the support plate 110. Preferably, the rotation direction and the rotation number of the positioning motor 141 can be set by a program, so that the swinging direction and the swinging displacement of the sampling needle lifting assembly 200 can be precisely controlled.

Different from the prior art, the sampling needle lifting assembly 200 of the sampling device 1 provided by the application is connected to the supporting plate 110 through the auxiliary assembly member 120 and the swing rotating shaft 130, so that the supporting plate 110 is supported when the sampling needle lifting assembly 200 swings, the swinging supporting surface of the sampling needle lifting assembly 200 is enlarged, the stability of the sampling needle lifting assembly 200 in the swinging process is better, and the sampling device 1 can be ensured to complete sampling at different positions more accurately.

In this embodiment, the swing rotation shaft 130 includes a cylindrical portion 131 and a screw portion 132, the screw portion 132 is connected to a first end of the cylindrical portion 131, the cylindrical portion 131 is matched with the sleeve portion 122, the screw portion 132 passes through the swing bracket 210 and is locked and fixed to the swing bracket 210 by a nut 133, and a second end of the cylindrical portion 131 is fixed to a central angle portion 161 of the sector gear 160 by a screw. When the swing motor 141 rotates, the driving gear 150 and the sector gear 160 are driven to rotate, and further the column 131 fixed to the sector gear 160 is driven to rotate, so that the swing bracket 210 fixedly connected to the screw rod 132 swings in a specific direction, and the support of the support plate 110 enlarges the support surface of the swing bracket 210 at a rotating position when swinging, so that the swing bracket 210 has better stability in the swinging process.

In this embodiment, the supporting plate 110 is further provided with an arc-shaped groove, including the first arc-shaped groove 111 and the second arc-shaped groove 112, one end of the second arc-shaped groove 112 is further provided with an assembly opening 113, the sampling device 1 further includes a guiding limiting component 300, the guiding limiting component 300 includes a guiding limiting block 310, a limiting rod connected with the swing bracket 210, the limiting rod includes a first limiting rod 320 extending into the first arc-shaped groove 111 and a second limiting rod 330 extending into the second arc-shaped groove 112, the guiding limiting block 310 is connected with the second limiting rod 330, the guiding limiting block 310 is provided with two guide grooves 311 in the plane direction where the supporting plate 110 is located, the guiding limiting block 310 is assembled through the assembly opening 113, so that the guide grooves 311 are in the second arc-shaped groove 112 and are in guiding embedding with the supporting plate 110.

Specifically, the first limiting rod 320 is connected to the middle of the swing bracket 210, the second limiting rod 330 is connected to the tail end of the swing bracket 210, the guide limiting block 310 is connected to the second limiting rod 330, and is engaged with the support plate 110 through two guide grooves 311, during the swinging of the swing bracket 210 along the first arc-shaped groove 111 and the second arc-shaped groove 112, the guide stopper 310 also slides along the second arc-shaped groove 112, so that the support plate 110 can be prevented from being separated from the second arc-shaped groove 112 by the fitting connection of the guide stoppers 310, after the swing bracket 210 swings for a plurality of times, the tail end of the swing bracket 210 can be prevented from being tilted or sunk due to a plurality of mechanical movements, meanwhile, the guide limiting block 310 can prevent the swing bracket 210 from swinging left and right along the first arc-shaped groove 111 and the second arc-shaped groove 112, so that the stability of the swing bracket 210 is improved.

Be different from prior art, the sampling lifting unit 200 of the sampling device 1 that this application provided leads to the perk or sunken because of a lot of mechanical motion through direction stopper 310 and backup pad 110 gomphosis, can avoid the tail end of swing support 210, and direction stopper 310 can prevent that sampling lifting unit 200 from rocking about the swing in-process simultaneously, has increased the stability of sampling lifting unit 200, and then guarantees that sampling device 1 can accomplish the sampling in the position of difference more accurately.

Optionally, the number of the arc-shaped grooves and the limiting rods is not limited, and may be more or less, but the number of the arc-shaped grooves and the limiting rods needs to be matched. Of course, the number of the guide stoppers 310 may be 2, but not limited thereto. The guide stopper 310 is preferably provided at the rear end of the swing bracket 210.

Please refer to fig. 4, fig. 4 is a schematic structural diagram of a sampling needle lifting assembly of a sampling device according to an embodiment of the present invention. The sampling device 1 comprises a sampling needle lifting assembly 200, and the sampling needle lifting assembly 200 comprises a swing bracket 210, a slide rail 220, a slide block 230 and a fixed block 240. The sliding rail 220 is fixed on one side of the swing bracket 210 departing from the flange portion 121, the sliding block 230 is slidably disposed on the sliding rail 220, and the fixing seat 240 is fixed with the sliding block 230 and used for fixing the sampling needle 400.

The sampling needle lifting assembly 200 further comprises a pressing block 250, a lifting motor 260, a driving wheel 271, a driven wheel 272 and a synchronous belt 273. The swing bracket 210 includes a first flap 211 and a second flap 212 that are foldably connected. The first folding plate 211 is connected with the swing rotating shaft 130, the sliding rail 220 is fixed on the first folding plate 211, the lifting motor 260 is installed on the second folding plate 212, the driving wheel 271 is arranged at the output end of the lifting motor 260, the driven wheel 272 is arranged on the second folding plate 212, the synchronous belt 273 is sleeved between the driving wheel 271 and the driven wheel 272, the pressing block 250 is fixed with the fixing seat 240, the synchronous belt 273 is fixed, the lifting motor 260 is used for driving the fixing seat 240 through the synchronous belt 273 and the pressing block 250, and the sampling needle 400 on the fixing seat 240 can move up and down relative to the swing support 210.

Specifically, when the lifting motor 260 drives the driving wheel 271 and the driven wheel 272 to rotate in the forward direction, the synchronous belt 273 is driven to transmit in the forward direction, and further the pressing block 250 fixed with the synchronous belt 273 and the fixing seat 240 can move downwards along the sliding rail 220 through the sliding block 230, when the lifting motor 260 drives the driving wheel 271 and the driven wheel 272 to rotate in the reverse direction, the synchronous belt 273 is driven to transmit in the reverse direction, and further the pressing block 250 fixed with the synchronous belt 273 and the fixing seat 240 can move upwards along the sliding rail 220 through the sliding block 230, so that the sampling needle 400 on the fixing seat 240 performs sampling.

The sampling needle lifting assembly 200 further comprises a position detecting optocoupler 280 and a swab 290, the position detecting optocoupler 280 being configured to detect an initial position of the sampling needle 400. A swab 290 is provided at one side of the rear end of the first flap 211, and the swab 290 is used to wash the sampling needle 400 before sampling, and also serves as a guide during the ascent and descent of the sampling needle 400.

The embodiment of the utility model provides a still include an automatic analyzer, this automatic analyzer includes casing and aforementioned sampling device 1, and wherein sampling device 1 sets up in the casing.

The sampling device 1 in this embodiment needs to complete sampling at three different positions, and of course, the sampling device 1 also completes sampling at other multiple positions through program setting according to actual requirements. The following is a description of three sampling positions in the present embodiment.

Please refer to fig. 5, fig. 5 is a schematic diagram of a sampling position No. 1 of the sampling device according to an embodiment of the present invention. Sampling device 1's No. 1 sampling position is initial position, and when sampling device was in No. 1 sampling position, position detection opto-coupler 280 detected the initial position of sampling needle 400, and when the initial position detection of sampling needle 400 was suitable, sampling needle 400 descends to the lowest position to stretch into the test tube that is equipped with the blood sample and carry out blood collection, sampling needle 400 rose to initial position after gathering successfully, and prepare to move toward No. 2 sampling positions.

Referring to fig. 6, fig. 6 is a schematic view of a sampling position No. 2 of the sampling device according to an embodiment of the present invention. The No. 2 sampling position of the sampling device 1 can drive the positioning motor 141 to swing a certain angle to the specified direction to reach the No. 2 position by means of setting of a program, then the lifting motor 260 is driven to lower the sampling needle 400 to the specified position of the first reaction tank, a blood sample is released to enter the first reaction tank, and after a series of actions are completed in the first reaction tank, the sampling needle 400 is lifted to prepare for moving to the No. 3 sampling position.

Referring to fig. 7, fig. 7 is a schematic view of a sampling position No. 3 of the sampling device according to an embodiment of the present invention. The No. 3 sampling position of the sampling device 1 can drive the positioning motor 141 to swing a certain angle to the specified direction to reach the No. 3 position by means of program setting, then the lifting motor 260 is driven to lower the sampling needle 400 to the specified position of the No. two reaction pools, blood samples are released to enter the No. two reaction pools, after a series of actions are completed in the No. two reaction pools, the sampling needle 400 is lifted to the initial position, and finally the positioning motor 141 drives the sampling device 1 to return to the No. 1 position, namely the initial position.

In conclusion, those skilled in the art can easily understand that the utility model provides a sampling device 1's sampling lifting unit 200 passes through the swivelling joint of auxiliary assembly 120 and swing pivot 130 in backup pad 110, make sampling needle lifting unit 200 have the support of backup pad 110 when the swing, the wobbling holding surface of sampling needle lifting unit 200 has been enlarged, thereby make sampling needle lifting unit 200 stability better at the swing in-process, sampling needle lifting unit 200 leads to the gomphosis of backup pad 110 through direction stopper 310 simultaneously, can avoid the tail end of swing support 210 to lead to tilting or sunken because of a lot of mechanical motion, and direction stopper 310 can prevent that sampling lifting unit 200 from rocking about the swing in-process, the stability of sampling lifting unit 200 has been increased, and then guarantee that sampling device 1 can more accurately accomplish the sampling in different positions.

The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A sampling device, characterized in that the sampling device comprises:

the supporting plate is provided with an arc-shaped groove;

the swinging bracket is positioned on one side of the supporting plate and is connected with a limiting rod extending into the arc-shaped groove;

the swing rotating shaft penetrates through the supporting plate and is fixed with the swing support, and the swing rotating shaft drives the swing support to swing relative to the supporting plate when rotating.

2. The sampling device according to claim 1, wherein the sampling device comprises a motor bracket and a positioning motor, the motor bracket is fixed with the supporting plate, the positioning motor is fixedly installed through the motor bracket, and the positioning motor is used for driving the swinging rotating shaft to rotate forwards or backwards so as to drive the swinging bracket to swing relative to the supporting plate.

3. The sampling device of claim 2, wherein the sampling device comprises an auxiliary assembly disposed on the support plate, the auxiliary assembly comprising a sleeve portion and a flange portion disposed at one end of the sleeve portion, the sleeve portion extending through the support plate, the pivot shaft extending through the sleeve portion, the flange portion being secured to the support plate and being disposed between the support plate and the pivot bracket.

4. The sampling device of claim 3, wherein the sampling device comprises a driving gear and a sector gear, the driving gear is connected with the positioning motor, a circle center angle area of the sector gear is fixed with the swing rotating shaft, an arc edge area of the sector gear is meshed with the driving gear, and the positioning motor is used for driving the swing bracket to swing through the driving gear, the sector gear and the swing rotating shaft.

5. The sampling device of claim 4, wherein the swing rotation shaft comprises a cylindrical portion and a screw portion connected to a first end of the cylindrical portion, the cylindrical portion is matched with the sleeve portion, the screw portion passes through the swing bracket and is locked by a nut to be fixed with the swing bracket, and a second end of the cylindrical portion is fixed with a circle center angle region of the sector gear by a screw.

6. The sampling device of claim 1, wherein: the arc wall includes first arc wall and second arc wall, the gag lever post is including stretching into the first gag lever post of first arc wall and stretching into the second gag lever post of second arc wall, sampling device is including the direction stopper, the direction stopper with the second gag lever post is connected, the direction stopper is in be equipped with the guide way on the plane direction at backup pad place, the guide way in second arc wall department with the backup pad cooperation of leading.

7. The sampling device of claim 6, wherein one end of the second arcuate slot has a fitting opening through which the guide stopper is fitted so that the guide slot engages the support plate.

8. The sampling device according to claim 3, further comprising a slide rail, a slider, and a fixing base, wherein the slide rail is fixed to a side of the swing bracket away from the flange portion, the slider is slidably disposed on the slide rail, and the fixing base is fixed to the slider and is used for fixing the sampling needle.

9. The sampling device as claimed in claim 8, wherein the swing bracket includes a first folded plate and a second folded plate connected by bending, the first folded plate is connected to the swing shaft, the slide rail is fixed to the first folded plate, the sampling device further includes a lifting motor, a driving wheel, a driven wheel, a synchronous belt and a pressing block, the lifting motor is installed on the second folded plate, the driving wheel is installed at an output end of the lifting motor, the driven wheel is installed on the second folded plate, the synchronous belt is sleeved between the driving wheel and the driven wheel, the pressing block is fixed to the fixing base and the synchronous belt, and the lifting motor is used for driving the fixing base to make the sampling needle perform lifting movement relative to the swing bracket through the synchronous belt and the pressing block.

10. An autoanalyzer comprising a housing and the sampling device of any one of claims 1 to 9, said sampling device being disposed within said housing.