WO2021121151A1

WO2021121151A1 - Reagent disc driving structure

Info

Publication number: WO2021121151A1
Application number: PCT/CN2020/135699
Authority: WO
Inventors: 郝书顺
Original assignee: 石家庄禾柏生物技术股份有限公司
Priority date: 2019-12-19
Filing date: 2020-12-11
Publication date: 2021-06-24
Also published as: CN111175526A

Abstract

A reagent disc (5) driving structure, comprising a driving motor (2), a locating shaft (4) disposed on an output shaft of the driving motor (2), and a reagent disc (5) disposed on the locating shaft (4). Several projections (7) are evenly disposed on the outer side wall of the locating shaft (4), and a connecting groove (15) for matching the reagent disc (5) is provided between every two adjacent projections (7); a locating hole is provided in the center of the reagent disc (5), and connecting blocks (6) adapted to the connecting grooves (15) are provided on the inner side wall of the locating hole. The reagent disc (5) driving structure is driven by the driving motor (2), and the reagent disc (5) can be placed on the locating shaft (4) and then driven by the locating shaft (4) to achieve a rotation function.

Description

Drive structure for reagent disc

Technical field

The invention relates to a reagent disk drive structure.

Background technique

In body fluid testing and diagnosis, it is necessary to collect human body fluids and then perform targeted item testing. In most cases, one tube of body fluid needs to be collected for each item tested. When multiple tests are required, multiple tubes of body fluid need to be collected. The collection process It takes more time. At present, there is a reagent disk, which can quantify, separate, and transport the body fluid dropped on the disk by centrifugal force, and can realize the function of collecting multiple detections at a time. For this kind of reagent disk, a drive device is required. To drive it to rotate.

technical problem

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

Technical solutions

The technical solution adopted by the present invention is: a reagent disk drive structure, which includes a drive motor, a positioning shaft set on the output shaft of the drive motor, and a reagent disk set on the positioning shaft. The outer side wall of the positioning shaft is uniform A number of bumps are provided, and between two adjacent bumps is a connecting groove for matching with the reagent disk; a positioning hole is provided in the center of the reagent disk, and the inner side wall of the positioning hole is provided with a connecting groove. Adapted connection block.

Further, the outer side wall of the convex block gradually slopes from bottom to top to a direction close to the center of the positioning shaft.

Further, the left and right side walls of the bump gradually slope from bottom to top toward the middle of the bump.

Further, a bracket is provided on the output shaft of the driving motor, and the positioning shaft is installed above the bracket.

Further, the bottom of the connecting block is a V-shaped inclined surface.

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

Beneficial effect

The positive effect of the present invention is that the present invention can be driven by a motor to place the reagent disk on the positioning shaft, and then the positioning shaft can drive it to realize the function of rotation.

The positioning shaft is provided with connecting grooves separated by bumps, and there is a connecting block corresponding to the reagent tray. The connecting block can be clamped in the connecting groove, and at the same time, there are provided on the opposite side of the bump and the connecting block. With the inclined slope, when the reagent disk is placed on the positioning shaft, there is no need to adjust the deflection angle of the reagent disk, and the coupling groove and the connecting block can be matched under the gravity of the reagent disk, which is simple and convenient to use.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the present invention.

Figure 2 is a schematic diagram of the structure of the reagent tray of the present invention.

Fig. 3 is an enlarged view of part A in Fig. 2 of the present invention.

Figure 4 is a schematic diagram of the structure of the locking mechanism of the present invention.

Fig. 5 is a schematic diagram of the structure of the clamping jaw of the present invention.

Embodiments of the present invention

As shown in Figures 1-3, the present invention includes a drive motor 2 fixed on the mounting plate 1, a bracket 3 sleeved on the output shaft of the drive motor 2, and fixed on the output shaft of the drive motor 2 and located on the bracket 3. The upper positioning shaft 4 and the reagent disk 5 arranged on the positioning shaft 4, and the reagent disk 5 and the positioning shaft 4 cooperate with each other.

A number of protrusions 7 are uniformly arranged on the outer side wall of the positioning shaft 4, and between two adjacent protrusions 7 is a connecting groove 15 for mating with the reagent disk 5, and is provided on the inner side wall of the positioning hole of the reagent disk 5 There is a connecting block 6 corresponding to the connecting groove 15.

In order to facilitate the connection between the positioning hole on the reagent tray 5 and the positioning shaft 4, the outer side wall of the protrusion 7 gradually slopes toward the center of the positioning shaft 4 from bottom to top.

At the same time, the bottom surface of the connecting block 6 is designed to be approximately V-shaped, and the left and right side walls of the bump 7 gradually slope from bottom to top toward the middle of the bump 7, that is, it is also approximately in the form of an inverted V shape.

When installing the reagent plate 5 on the positioning shaft 4, without considering the positional relationship between the connecting groove 15 and the connecting block 6, only the positioning hole on the reagent plate 5 is placed on the positioning shaft 4, relying on the reagent plate 5 Own gravity, combined with the inclined outer side wall of the convex block 7, can realize that the axis of the reagent tray 5 coincides with the axis of the positioning axis 4, and it can be automatically adjusted even if it is slightly misaligned when placed. However, since there is a positive V-shaped or inverted V-shaped structure on one or both sides of the connecting block 6 and the bump 7, even if the connecting block 6 is not directly facing the connecting groove 15 during installation, it will be carried out through an inclined slope. auto-adjust. The connection between the reagent tray 5 and the positioning shaft 4 is simpler and easy to operate.

The top surface of the bracket 3 is in contact with the bottom surface of the protrusion 7 (that is, the bottom surface of the connecting groove 15) to prevent the reagent tray 5 from falling off from below the positioning shaft 4.

When the utility model is actually used, it also needs a structure to prevent the reagent disk 5 from flying out of the positioning shaft 4. This structure has many embodiments in the prior art, and the present invention can adopt these existing structures.

In order to realize the automatic operation and realize the locking of the reagent tray and the positioning shaft without manual operation, the present invention discloses a locking mechanism.

As shown in Figures 1, 3, 4, and 5, the locking mechanism includes a clamping jaw 8 arranged on the bracket 3, a switch device for opening or closing the clamping jaw 8, and a lower end of the inner wall of the positioning hole arranged on the reagent tray 5. A clip 9 for mating with the clamping jaw 8. A space for placing the clamping jaw 8 is provided in the bracket 3, and the upper part of the clamping jaw 8 protrudes from the bracket 3 to cooperate with the clamping strip 9.

The clamping claw 8 includes a claw hook 801 and a horizontal plate 802 arranged below the claw hook 801. The right end of the horizontal plate 802 is rotatably connected with the bracket 3, and the left end of the horizontal plate 802 is in contact with the switch device, which is located at a high position. At this time, the left end of the horizontal plate 802 is pushed to move upward, so that the claw hook 801 is deflected outward, and the end of the claw hook 801 is positioned above the clip bar 9 to prevent the reagent tray 5 from being lifted out. When the switch device is in position, it deflects inward under the weight of the clamping jaw 8 to make the jaw hook 801 give way to the rising position of the clamping strip 9 and release the reagent tray 5.

The switch device includes a pallet 10 arranged under the bracket 3, a compression spring 18 arranged between the motor 2 and the pallet 10, and a pressing device for pressing down the pallet 10, and the pallet 10 is provided with When the top block contacting the horizontal plate 802 is in a state where the pressing device is not working, the compression spring 18 pushes the pallet 10 to the highest position.

The pressing device includes a moving plate 11 arranged on one side of the pallet 10, a pressing plate 12 arranged on the moving plate 11 for contacting with the pallet 10 and pressing it down, and a horizontal plate for driving the moving plate 11 to move.移装置。 Move the device. As long as the traverse device can realize the movement of the moving plate 11, it is very common in the mechanical field and will not be repeated here. The side corresponding to the supporting plate 10 and/or the pressing plate 12 is an inclined inclined surface, and the supporting plate 10 is pressed downward in the process of gradually approaching.

On the other side of the pallet 10 is provided a movable plate 14 that is also used to press the pallet 10 down. The movable plate 14 is approximately L-shaped, one end of which is used to contact the pallet 10, and the other end is arranged on the movable plate. The contact rod 13 on the 11 contacts, the middle part of the movable plate 14 is set on the mounting plate 1 through the rotating shaft, the end of the movable plate 14 in contact with the pallet 10 is an upwardly inclined inclined surface, when it contacts the pallet 10, the pallet 10 Press down.

Through the locking mechanism of the present invention, the function of locking the reagent disk can be realized automatically, and the reagent disk can be manually placed on the positioning shaft, and no other manual operations are required to realize the connection and connection between the reagent disk 5 and the positioning shaft. Lock tightly.

Claims

A reagent disc drive structure, which is characterized in that it comprises a drive motor (2), a positioning shaft (4) arranged on the output shaft of the drive motor (2), and a reagent disc (5) arranged on the positioning shaft (4), A number of protrusions (7) are evenly arranged on the outer side wall of the positioning shaft (4), and between two adjacent protrusions (7) is a connecting groove (15) for matching with the reagent tray (5) A positioning hole is provided in the center of the reagent tray (5), and a connecting block (6) that matches the connecting groove (15) is provided on the inner side wall of the positioning hole.
The reagent disk drive structure according to claim 1, characterized in that the outer side wall of the protrusion (7) gradually slopes from bottom to top to a direction close to the center of the positioning shaft (4).
The reagent disk drive structure according to claim 1 or 2, characterized in that the left and right side walls of the bump (7) gradually slope from bottom to top toward the middle of the bump (7).
The reagent disk drive structure according to claim 1 or 2, characterized in that the bottom of the connecting block (6) is a V-shaped inclined surface.
A reagent disk drive structure according to claim 1, characterized in that a bracket (3) is provided on the output shaft of the drive motor (2), and the positioning shaft (4) is mounted on the bracket (3). Above.
The reagent disk drive structure according to claim 5, characterized in that the bottom of the connecting groove (15) is in contact with the top surface of the bracket (3) to prevent the connecting block (6) from coming out of the connecting groove (15). Prolapse.