CN111175526A

CN111175526A - Reagent disk drive structure

Info

Publication number: CN111175526A
Application number: CN201911316828.7A
Authority: CN
Inventors: 郝书顺
Original assignee: Shijiazhuang Hipro Biotechnology Co Ltd
Current assignee: Shijiazhuang Hipro Biotechnology Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-05-19
Also published as: WO2021121151A1

Abstract

The invention relates to a reagent disk driving structure which comprises a driving motor, a positioning shaft arranged on an output shaft of the driving motor and a reagent disk arranged on the positioning shaft, wherein a plurality of convex blocks are uniformly arranged on the outer side wall of the positioning shaft, and a connecting groove used for being matched with the reagent disk is arranged between every two adjacent convex blocks; a positioning hole is formed in the center of the reagent disk, and a connecting block matched with the connecting groove is arranged on the inner side wall of the positioning hole; the reagent tray is driven by the motor, can be placed on the positioning shaft and then is driven by the positioning shaft to realize the rotating function.

Description

Reagent disk drive structure

Technical Field

The invention relates to a reagent disk driving structure.

Background

In the body fluid detection diagnosis, the body fluid of a human body needs to be collected and then the targeted item detection is carried out, in most cases, one tube of body fluid needs to be collected for each item detection, when a plurality of items are required to be detected, a plurality of tubes of body fluid need to be collected, and the collection process is time-consuming. There is a reagent disk which can perform a function of collecting a plurality of tests at a time by quantifying, separating, transporting, etc. a body fluid dropped on the disk by a centrifugal force, and for which a driving means is required to rotate the disk.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a reagent disk driving structure, which can realize the rotary driving of a reagent disk.

The technical scheme adopted by the invention is as follows: a reagent disk driving structure comprises a driving motor, a positioning shaft arranged on an output shaft of the driving motor and a reagent disk arranged on the positioning shaft, wherein a plurality of convex blocks are uniformly arranged on the outer side wall of the positioning shaft, and a connecting groove used for being matched with the reagent disk is formed between every two adjacent convex blocks; the center of the reagent disk is provided with a positioning hole, and the inner side wall of the positioning hole is provided with a connecting block matched with the connecting groove.

Furthermore, the outer side wall of the convex block is gradually inclined from bottom to top towards the direction close to the center of the positioning shaft.

Furthermore, the left side wall and the right side wall of the lug gradually incline towards the middle direction of the lug from bottom to top.

Furthermore, a bracket is arranged on an output shaft of the driving motor, and the positioning shaft is arranged above the bracket.

Furthermore, the bottom of the connecting block is a V-shaped inclined plane.

Further, the bottom of the connecting groove is in contact with the top surface of the bracket to prevent the connecting block from being removed from the connecting groove.

The invention has the positive effects that: the reagent tray is driven by the motor, can be placed on the positioning shaft and then is driven by the positioning shaft to realize the rotating function.

Be provided with the spread groove that forms by the lug interval on the location is epaxial, what correspond on the reagent dish has the connecting block, the connecting block can the joint in the spread groove, all be provided with the inclined plane of slope in the relative one side of lug and connecting block simultaneously, after the reagent dish is placed the location epaxial back, need not the deflection angle of adjustment reagent dish, can realize the cooperation of spread groove and connecting block relying on reagent dish self action of gravity down, it is simple and convenient to use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a reagent disk according to the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the locking mechanism of the present invention;

fig. 5 is a schematic view of the jaw structure of the present invention.

Detailed Description

As shown in fig. 1-3, the present invention includes a driving motor 2 fixed on a mounting plate 1, a bracket 3 sleeved on an output shaft of the driving motor 2, a positioning shaft 4 fixed on the output shaft of the driving motor 2 and located above the bracket 3, and a reagent tray 5 disposed on the positioning shaft 4, wherein the reagent tray 5 is matched with the positioning shaft 4.

Evenly be provided with a plurality of lug 7 on the lateral wall of location axle 4, be used for between two adjacent lugs 7 with reagent dish 5 complex spread groove 15, be provided with the connecting block 6 that corresponds with spread groove 15 on the locating hole inside wall of reagent dish 5.

In order to facilitate the connection between the positioning hole on the reagent disk 5 and the positioning shaft 4, the outer side wall of the projection 7 is gradually inclined from bottom to top towards the direction close to the center of the positioning shaft 4.

Meanwhile, the bottom surface of the connecting block 6 is designed to be in an approximate V shape, and the left side wall and the right side wall of the lug 7 are gradually inclined towards the middle direction of the lug 7 from bottom to top, namely, the left side wall and the right side wall are also in an approximate inverted V shape.

When installing reagent dish 5 on location axle 4, need not consider the position relation of spread groove 15 and connecting block 6, only need with reagent dish 5 on the locating hole place location axle 4 can, rely on the gravity of reagent dish 5 self, combine the lateral wall of lug 7 slope, can realize the axle center of reagent dish 5 and the coincidence of the axle center of location axle 4, even a lot of misplaces when placing, also can realize automatic adjustment. And because the connecting block 6 has a structure form of a regular V shape or an inverted V shape on one surface or two surfaces matched with the convex block 7, even if the connecting block 6 is not opposite to the connecting groove 15 in the installation process, the automatic adjustment can be carried out through the inclined surface. The connection between the reagent disk 5 and the positioning shaft 4 is simpler and easier to operate.

The top surface of the tray 3 contacts the bottom surface of the projection 7 (i.e., the bottom surface of the coupling groove 15), and prevents the reagent disk 5 from falling off from below the positioning shaft 4.

In practical use, the present invention also needs a structure for preventing the reagent disk 5 from flying out from the positioning shaft 4, which is not a little reflected in the prior art, and the present invention can adopt the prior structures.

In order to realize automatic operation and realize the locking of the reagent disk and the positioning shaft under the condition of no need of manual operation, the invention discloses a locking mechanism.

As shown in fig. 1, 3, 4 and 5, the locking mechanism includes a clamping jaw 8 disposed on the bracket 3, an opening and closing device for opening and closing the clamping jaw 8, and a clamping strip 9 disposed at the lower end of the inner wall of the positioning hole of the reagent disk 5 for cooperating with the clamping jaw 8. A space for placing the clamping jaw 8 is arranged in the bracket 3, and the upper part of the clamping jaw 8 protrudes out of the bracket 3 to be matched with the clamping strip 9.

The clamping jaw 8 comprises a claw hook 801 and a transverse plate 802 arranged below the claw hook 801, the right side end of the transverse plate 802 is rotatably connected with the bracket 3, the left side end of the transverse plate 802 is contacted with the switch device, and when the switch device is positioned at a high position, the left end of the transverse plate 802 is pushed to move upwards, so that the claw hook 801 deflects outwards, the end part of the claw hook 801 is positioned above the clamping strip 9, and the reagent disk 5 is prevented from being held out. When the switch device is in the ground position, it is deflected inwardly by the weight of the jaws 8, causing the hooks 801 to clear the raised position of the strips 9, releasing the reagent disk 5.

The switch device comprises a supporting plate 10 arranged below the bracket 3, a pressure spring 18 arranged between the motor 2 and the supporting plate 10 and a pressing device used for pressing down the supporting plate 10, wherein a top block in contact with the transverse plate 802 is arranged on the supporting plate 10, and the supporting plate 10 is pressed at the highest position by the pressure spring 18 in the non-activated state of the pressing device.

The pressing device comprises a moving plate 11 arranged on one side of the supporting plate 10, a pressing plate 12 arranged on the moving plate 11 and used for contacting with the supporting plate 10 to press the supporting plate, and a transverse moving device used for driving the moving plate 11 to move. The traverse device is only required to realize the movement of the moving plate 11, and is very common in the mechanical field, and the details are not repeated here. The corresponding side of the pallet 10 and/or the press plate 12 is an inclined ramp that presses the pallet 10 downward in the process of approaching.

A movable plate 14 for pressing the pallet 10 downward is also disposed at the other side of the pallet 10, the movable plate 14 has an approximately L-shape, one end of the movable plate 14 is used for contacting the pallet 10, the other end of the movable plate is used for contacting a contact rod 13 disposed on the movable plate 11, the middle of the movable plate 14 is rotatably disposed on the mounting plate 1 through a rotating shaft, and one end of the movable plate 14 contacting the pallet 10 is an inclined surface inclined upward to press the pallet 10 downward when contacting the pallet 10.

The locking mechanism can automatically realize the locking function of the reagent disk, and the reagent disk 5 can be connected and locked with the positioning shaft only by manually placing the reagent disk on the positioning shaft without other manual operations.

Claims

1. A reagent disk driving structure is characterized by comprising a driving motor (2), a positioning shaft (4) arranged on an output shaft of the driving motor (2) and a reagent disk (5) arranged on the positioning shaft (4), wherein a plurality of convex blocks (7) are uniformly arranged on the outer side wall of the positioning shaft (4), and a connecting groove (15) matched with the reagent disk (5) is arranged between every two adjacent convex blocks (7); the center of the reagent disk (5) is provided with a positioning hole, and the inner side wall of the positioning hole is provided with a connecting block (6) matched with the connecting groove (15).

2. A reagent disk drive arrangement according to claim 1, wherein the outer side wall of the projection (7) is inclined from bottom to top towards the centre of the positioning shaft (4).

3. A reagent disk drive structure according to claim 1 or 2, wherein the left and right side walls of the projection (7) are inclined from bottom to top gradually towards the middle of the projection (7).

4. A reagent disk drive arrangement according to claim 1 or 2, wherein the bottom of the connecting block (6) is a V-shaped bevel.

5. A reagent disk drive arrangement according to claim 1, characterized in that a carrier (3) is arranged on the output shaft of the drive motor (2), the positioning shaft (4) being mounted above the carrier (3).

6. A reagent disk drive arrangement according to claim 5, wherein the bottom of the connecting slot (15) contacts the top surface of the carrier (3) to prevent the connecting block (6) from being removed from the connecting slot (15).