Positioning device for reagent consumables

Abstract

The utility model provides a positioning device for reagent consumables. According to the positioning device, a positioning bearing plate is provided with positioning protrusions; a linkage plate with an inclined surface is fixed at the output end of the driving unit; the positioning unit comprises a first positioning subunit and a second positioning subunit; the first positioning subunit and the second positioning subunit comprise first sliding rods, first limiting plates and first sliding blocks connected with the first sliding rods in a sliding mode, the first sliding blocks are provided with cam followers and positioning pins, and elastic pieces are arranged between the first sliding blocks and the first limiting plates. The positioning pin extends to the surface of the positioning bearing plate through the oblong hole; and the cam follower is propped against the inclined surface. According to the scheme provided by the invention, the driving unit is used for arranging the linkage plate with the inclined plane and the positioning unit is used for arranging the sliding block with the cam follower, so that the positioning pin can move in the range of the oblong hole of the positioning bearing plate, and the consumable material for the reagent is positioned by matching with the positioning bulge; the clamping of the reagent consumables is kept at the same position, so that the subsequent detection work can be smoothly carried out.

Description

TECHNICAL FIELD

[0001] The utility model relates to reagent detection technical field especially, a kind of positioning device of reagent consumable. BACKGROUND

[0002] With the continuous improvement of medical science and technology level, for gene detection (medical, cancer, etc.) direction has been rich in equipment to meet the actual needs. Usually reagent consumable (such as polymerase chain reaction (PCR) plate, gun head box, deep hole plate, test tube rack, etc.) is placed in specific storage fixture, and needs to be gripped, transported to detection equipment using mechanical arm during use. Usually in this transport process, the accuracy of gripping position is required, so as to place it in the uniform position of detection equipment.

[0003] Since reagent consumable can be in different placement posture, the same position cannot be gripped every time during gripping, and the consumable cannot be placed in the uniform position of detection equipment, thereby affecting subsequent detection work. SUMMARY

[0004] The utility model provides a kind of positioning device of reagent consumable, the purpose is to keep the gripping of reagent consumable in the same position every time, and then the consumable can be placed in the uniform position of detection equipment.

[0005] The utility model embodiment provides a kind of positioning device of reagent consumable, comprising:

[0006] Positioning bearing plate is equipped with long circular hole for positioning and the positioning protrusion corresponding to long circular hole;

[0007] Drive unit is fixed in the bottom of positioning bearing plate, and the output end of drive unit is fixed with the inclined surface of vertical combination, and the linkage plate;

[0008] Positioning unit is fixed in the bottom of positioning bearing plate, and the perimeter of drive unit, comprising first positioning subunit and second positioning subunit;With positioning protrusion as origin, establish coordinate system, first positioning subunit is used to position in Y axis, and second positioning subunit is used to position in X axis;

[0009] First positioning subunit and second positioning subunit all include first sliding rod, first limit plate and the first slider slidingly connected with first sliding rod, and first slider is equipped with cam follower and positioning pin, and elastic member is arranged between first slider and first limit plate;

[0010] Positioning pin extends to the upper surface of positioning bearing plate through long circular hole;

[0011] The inclined surface of the cam follower connecting plate abuts.

[0012] Optionally, the positioning bearing plate is rectangular, and four sides of the positioning bearing plate are fixedly connected with support plates respectively.

[0013] The length direction of the oblong hole is parallel to the X axis or the Y axis.

[0014] Optionally, the driving unit is a lead screw motor, and the bottom of the lead screw motor is fixed to the first support base; one side of the first support base is fixed with a first connecting plate, and the first connecting plate is connected with a second connecting plate perpendicularly.

[0015] Optionally, the positioning bearing plate is fixed with a support rod at the bottom;

[0016] The side of the support rod close to the first connecting plate is provided with a second sliding rod, and the first connecting plate is slidingly connected with the second sliding rod;

[0017] The bottom of the support rod is provided with a second limiting plate for limiting the first support base.

[0018] Optionally, the bottom of the first sliding block is fixed with a first connecting block, the bottom of the first connecting block is fixed with a second connecting block, the side of the second connecting block is fixed with a rotating shaft, and the rotating shaft is arranged as the shaft center of the cam follower;

[0019] The side of the first sliding block pointing to the first limiting plate is provided with a first recess, and the first limiting plate is provided with a second recess;

[0020] The elastic member is accommodated between the first recess and the second recess.

[0021] Optionally, the first connecting block is provided with a positioning pin parallel to the first limiting plate.

[0022] Optionally, the number of the positioning pins is greater than or equal to 2;

[0023] The positioning pins are parallel to the X axis or the Y axis.

[0024] Optionally, the elastic member is a spring.

[0025] The positioning device for the reagent consumable provided by the embodiment of the utility model utilizes the connecting plate with an inclined surface arranged by the driving unit and the sliding block with the cam follower arranged by the positioning unit, so that the positioning pin can move within the range of the oblong hole of the positioning bearing plate, and the positioning of the reagent consumable is realized through the mutual cooperation between the positioning protrusions, the reagent consumable is clamped at the same position each time, and the subsequent detection work is ensured to be carried out smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The overall contour diagram of the positioning device for the reagent consumable provided by the embodiment of the utility model;

[0027] Figure 2 A plan view of the positioning device for reagent consumables provided by the embodiment of the utility model;

[0028] Figure 3 A structural schematic view of the positioning device for reagent consumables provided by the embodiment of the utility model;

[0029] Figure 4 A structural schematic view of the driving unit in the positioning device for reagent consumables provided by the embodiment of the utility model;

[0030] Figure 5 A structural schematic view of the first (second) positioning subunit in the positioning device for reagent consumables provided by the embodiment of the utility model.

[0031] In the figure: 1, positioning bearing plate; 2, positioning protrusion; 3, driving unit; 4, linkage plate; 5, positioning unit; 6, first positioning subunit; 7, second positioning subunit; 8, first sliding rod; 9, first limiting plate; 10, first sliding block; 11, cam follower; 12, positioning pin; 13, elastic member; 14, support plate; 15, screw motor; 16, first support seat; 17, first linkage plate; 18, second linkage plate; 19, support rod; 20, second sliding rod; 21, second limiting plate; 22, first connecting block; 23, second connecting block. DETAILED DESCRIPTION

[0032] The utility model will be further explained in detail in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings and not all structures.

[0033] In the process of clamping and carrying the PCR plate for placing reagent, often due to the randomness of its original position, and then the clamping jaw of the equipment cannot unify the clamping position, thereby bringing the safety hazard in the subsequent operation such as placing the PCR plate in the storage plate station, so a positioning device that can guarantee the stable placement of the PCR plate is needed.

[0034] Embodiment one

[0035] The utility model in the prior art aims at the above-mentioned defects, and provides a positioning device for reagent consumables, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , comprising:

[0036] The positioning bearing plate 1 is provided with a long circular hole for positioning and a positioning protrusion 2 corresponding to the long circular hole; wherein the reagent consumables include but are not limited to PCR plates, gun head boxes, deep well plates, test tube racks, etc., taking the PCR plate as an example; the positioning device adopts a box structure, and the positioning bearing plate 1 is rectangular, so as to facilitate accurate positioning during placing the PCR plate, and the positioning bearing plate 1 is fixedly connected with support plates 14 around the positioning bearing plate 1; the positioning bearing plate 1 and the support plates 14 are fixed by bolts.

[0037] The driving unit 3 is fixed to the bottom of the positioning bearing plate 1, and the output end of the driving unit 3 is fixed with a vertically combined linkage plate 4 with an inclined surface; the driving unit 3 includes but is not limited to a lead screw motor or an air cylinder, so as to realize the movement of the linkage plate 4 in the vertical direction.

[0038] The positioning unit 5 is fixed to the bottom of the positioning bearing plate 1 and surrounds the driving unit 3, and includes a first positioning subunit 6 and a second positioning subunit 7; a coordinate system is established with the positioning protrusion 2 as the origin, the first positioning subunit 6 is used for positioning in the Y axis, and the second positioning subunit 6 is used for positioning in the X axis; the length direction of the long circular hole is parallel to the X axis or the Y axis. The first positioning subunit 6 and the second positioning subunit 7 are vertically arranged because the adopted PCR plate is rectangular, and the first positioning subunit 6 and the second positioning subunit 7 can clamp and position the PCR plate together with the positioning protrusion 2.

[0039] The first positioning subunit 6 and the second positioning subunit 7 have the same structure and respectively include a first sliding rod 8, a first limiting plate 9 and a first sliding block 10 slidably connected with the first sliding rod 8, the first sliding block 10 is provided with a cam follower 11 and a positioning pin 12, and the first sliding block 10 and the first limiting plate 9 are provided with an elastic element 13; since the first positioning subunit 6 and the second positioning subunit 7 only differ in direction, only the first positioning subunit 6 is taken as an example here:

[0040] The first slide rod 8 and the first limiting plate 9 are vertically fixedly connected and are both fixed to the bottom of the positioning bearing plate 1, and the fixed mode includes but is not limited to bolt fixing; and the side of the first slide rod 8 is provided with a sliding groove, and the first sliding block 10 is slidably connected with the first slide rod 8 through the sliding groove; in the direction parallel to the first slide rod 8, the two ends of the first sliding block 10 are respectively fixed with a cam follower 11 and a positioning pin 12. The cam follower 11 abuts against the inclined surface of the linkage plate 4. When the driving unit 3 works to lift the linkage plate 4 in the vertical direction, the inclined surface of the linkage plate 4 extrudes the cam follower 11 to make it rotate and drive the first sliding block 10 to move towards the first limiting plate 9, at this time, the elastic element 13 is in a compressed state; on the contrary, when the linkage plate 4 descends in the vertical direction, the inclined surface of the linkage plate 4 is separated from the cam follower 11, and the first sliding block 10 is pushed away from the first limiting plate 9 in the process of the elastic element 13 returning to the original state. It should be noted here that the elastic element 13 includes but is not limited to a spring.

[0041] The positioning pin 12 extends to the upper surface of the positioning bearing plate 1 through an oblong hole; the positioning pin 12 can move in the direction of the oblong hole and parallel to the support plate 14, and cooperates with the positioning protrusion 2 to position the PCR plate. When the first sliding block 10 moves towards and / or away from the first limiting plate 9, the positioning pins 12 included in the first positioning sub-unit 6 and the second positioning sub-unit 7 are in a vertical state and move synchronously, so as to cooperate with the positioning protrusion 2 to realize clamping positioning of the PCR plate.

[0042] The positioning device for reagent consumables provided by the utility model embodiment utilizes the linkage plate provided with an inclined surface of the driving unit and the sliding block provided with a cam follower of the positioning unit, so that the positioning pin can move in the range of the oblong hole of the positioning bearing plate, and through mutual cooperation between the positioning protrusion, positioning of the reagent consumables is realized, the reagent consumables are clamped at the same position each time, and therefore the subsequent detection work is ensured to be smoothly performed.

[0043] Embodiment two

[0044] On the basis of the above-mentioned embodiment one, the driving unit 3 is a lead screw motor 15, the bottom of the lead screw motor 15 is fixed to a first support base 16; one side of the first support base 16 is fixed with a first linkage plate 17, and the first linkage plate 17 is vertically connected with a second linkage plate 18. An integral structure can be adopted between the first linkage plate 17 and the second linkage plate 18, or a spliced fixed structure can be adopted.

[0045] The bottom of the positioning bearing plate 1 is fixed with a support rod 19;

[0046] The support rod 19 is provided with a second sliding rod 20 near one side of the first linkage plate 17, and the first linkage plate 17 is in sliding connection with the second sliding rod 20; the second sliding rod 20 is provided with a second sliding block fixedly connected with the first linkage plate 17, and is used for connecting to limit the movement of the first linkage plate 17 and the second linkage plate 18 in the vertical direction.

[0047] The bottom of the support rod 19 is provided with a second limiting plate 21 for limiting the first support base 16, and the screw rod in the screw rod motor 15 is fixed on the second limiting plate 21, and the screw rod motor 15 drives the first linkage plate 17 and the second linkage plate 18 to move in the vertical direction through the screw rod.

[0048] And for the positioning unit 5, the first sliding block 10 is fixedly provided with a first connecting block 22 at the bottom, the first connecting block 22 is fixedly provided with a second connecting block 23 at the bottom, and the second connecting block 23 is fixedly provided with a rotating shaft at the side, and the rotating shaft is arranged as the shaft center of the cam follower 11; the structure of the plurality of connecting blocks is beneficial to disassembly and maintenance.

[0049] The side of the first sliding block 10 pointing to the first limiting plate 9 is provided with a first recess, and the first limiting plate 9 is provided with a second recess; it should be noted that the first recess can also be arranged at the corresponding side of the first connecting block 22.

[0050] The first recess and the second recess accommodate the elastic element 13. The elastic element 13 can be a spring, and the two ends of the spring are respectively placed in the first recess and the second recess; under the abutting action of the cam follower 11 on the inclined surface of the linkage plate 4, the second connecting block 23 drives the first connecting block 22 and the first sliding block 10 to move towards the first limiting plate 9, and the spring is compressed; on the contrary, under the action of the spring in the elastic deformation, when the cam follower 11 is not in abutting action with the inclined surface of the linkage plate 4, the second connecting block 23 drives the first connecting block 22 and the first sliding block 10 to move towards the original first limiting plate 9.

[0051] The first connecting block 22 is provided with a positioning pin 12 parallel to the first limiting plate 9. At this time, the number of the positioning pins 12 is greater than or equal to 2, and the purpose of the plurality of positioning pins 12 is to ensure the positioning effect.

[0052] The embodiment of the utility model has the same technical concept and the same technical effect as the embodiment one, and details are not repeated here.

[0053] In the utility model, some orientation words are limited, and under the condition that no opposite statement is made, the orientation words such as 'up', 'down', 'left', 'right', 'inner' and 'outer' are used for facilitating understanding, and thus do not constitute the limitation on the protection scope of the utility model.

[0054] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can include that first and second features are directly contacted, also can include that first and second features are not directly contacted but are contacted through other feature between them.

[0055] In the description of the utility model, unless another definite provision and limitation, the term "link", "connect", "fix" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication or mutual action relation of two elements inside two elements. For ordinary skilled person in the art, the specific meaning of above-mentioned term in the utility model can be understood according to specific circumstances.

Claims

1. A positioning device for reagent consumables, characterized in that, include: The positioning support plate (1) is provided with an elongated hole for positioning and a positioning protrusion (2) corresponding to the elongated hole; The drive unit (3) is fixed to the bottom of the positioning support plate (1), and the output end of the drive unit (3) is fixed with a vertically combined connecting plate (4) with an inclined surface; The positioning unit (5) is fixed to the bottom of the positioning support plate (1). The perimeter of the driving unit (3) includes a first positioning subunit (6) and a second positioning subunit (7). A coordinate system is established with the positioning protrusion (2) as the origin. The first positioning subunit (6) is used for positioning on the Y-axis, and the second positioning subunit (7) is used for positioning on the X-axis. The first positioning subunit (6) and the second positioning subunit (7) each include a first slide rod (8), a first limiting plate (9) and a first slider (10) slidably connected to the first slide rod (8). The first slider (10) is provided with a cam follower (11) and a positioning pin (12). An elastic element (13) is provided between the first slider (10) and the first limiting plate (9). The positioning pin (12) extends through the elongated hole to the upper surface of the positioning support plate (1); The cam follower (11) abuts against the inclined surface of the connecting plate (4).

2. The positioning device for reagent consumables according to claim 1, characterized in that, The positioning support plate (1) is rectangular, and support plates (14) are fixedly connected to the four sides of the positioning support plate (1); The length of the oblong hole is parallel to the X-axis or Y-axis.

3. The positioning device for reagent consumables according to claim 1, characterized in that, The drive unit (3) is a lead screw motor (15), the bottom of which is fixed to the first support base (16); a first connecting plate (17) is fixed on one side of the first support base (16), and the first connecting plate (17) is vertically connected to the second connecting plate (18).

4. The positioning device for reagent consumables according to claim 3, characterized in that, The bottom of the positioning bearing plate (1) is fixed with a support rod (19); The support rod (19) is provided with a second slide rod (20) on the side near the first connecting plate (17), and the first connecting plate (17) and the second slide rod (20) are slidably connected; The bottom of the support rod (19) is provided with a second limiting plate (21) to limit the first support seat (16).

5. The positioning device for reagent consumables according to claim 1, characterized in that, The first slider (10) is fixed with a first connecting block (22) at the bottom, and the first connecting block (22) is fixed with a second connecting block (23) at the bottom. The second connecting block (23) is fixed with a rotating shaft on its side, and the rotating shaft is set as the axis of the cam follower (11). The first slider (10) has a first groove on the side facing the first limiting plate (9), and the first limiting plate (9) has a second groove. The elastic element (13) is accommodated between the first groove and the second groove.

6. The positioning device for reagent consumables according to claim 5, characterized in that, The first connecting block (22) is provided with the positioning pin (12) parallel to the first limiting plate (9).

7. The positioning device for reagent consumables according to claim 6, characterized in that, The number of the positioning pins (12) is greater than or equal to 2; The positioning pin (12) is parallel to the X-axis or Y-axis.

8. The positioning device for reagent consumables according to claim 1 or 5, characterized in that, The elastic element (13) is a spring.

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