PCR plate loading device for PCR instrument

Abstract

The utility model discloses a PCR (Polymerase Chain Reaction) plate loading device for a PCR instrument. The PCR plate loading device comprises a clamping unit and a loading unit, the clamping unit comprises an L-shaped transverse plate, a rack extends from the outer side face of the long edge of the L-shaped transverse plate, a fixed L-shaped clamp is arranged on the inner side face of the short edge of the L-shaped transverse plate, a first linear mechanism is arranged below the L-shaped transverse plate, and a sliding L-shaped clamp opposite to the fixed L-shaped clamp is arranged at the sliding end of the L-shaped transverse plate. The loading unit is arranged above the clamping unit and comprises a vertically-arranged rotating motor, a gear meshed with the rack is arranged at the lower end of an output shaft of the rotating motor, a second linear mechanism is arranged above the rotating motor, a third linear mechanism is vertically arranged at one end of the output shaft of the rotating motor, and four three-face plates are arranged at the lower end of an output shaft of the third linear mechanism. Vertical through air holes are formed in horizontal plates at the upper ends of the three-face plates, the inner side included angles of the four three-face plates are used for being matched with the four corners of the upper end face of the PCR plate respectively, and vacuum pipes connected with the air holes are arranged at the upper ends of the three-face plates and used for being connected with a vacuum pump. According to the PCR plate loading device for the PCR instrument, PCR plates can be stably loaded into the PCR instrument conveniently, and the PCR plate loading device can be matched with various PCR instruments.

Description

Technical Field

[0001] The utility model relates to the technical field of PCR analysis related accessories, in particular to a PCR plate loading device for a PCR instrument. Background Art

[0002] PCR, or polymerase chain reaction, is a method of in vitro enzymatic synthesis of specific DNA fragments. A PCR machine is an instrument used to perform PCR. Figure 1 As shown, before performing PCR analysis, the PCR plate needs to be placed in the plate slot 31 of the PCR instrument 3. The upper end surface of the PCR plate is flat and has many holes. A reagent tank extending out of the lower end of the PCR plate is connected below the holes.

[0003] However, due to the trend of miniaturization and compactness in existing PCR instruments, after the PCR plate is placed in the PCR instrument 3, the upper end surface of the PCR plate is usually flush with the inner surface of the PCR instrument outside the plate slot 31, and there is no reserved height for the staff to place the PCR plate. Therefore, it is not convenient to load the PCR plate, and sometimes the PCR plate may be accidentally tilted, causing the reagents in it to spill out. Utility Model Content

[0004] In view of the above-mentioned defects, the utility model provides a PCR plate loading device for a PCR instrument, which is convenient for stably loading the PCR plate into the PCR instrument and can be matched with a variety of PCR instruments.

[0005] In order to achieve the purpose of this utility model, the following technologies are proposed:

[0006] A PCR plate loading device for a PCR instrument, comprising:

[0007] The clamping unit comprises an L-shaped horizontal plate, a rack extending from the outer side of the long side of the L-shaped horizontal plate, a fixed L-shaped clamp provided on the inner side of the short side of the L-shaped horizontal plate, and a first linear mechanism provided below the L-shaped horizontal plate, a sliding end of which is provided with a sliding L-shaped clamp arranged opposite to the fixed L-shaped clamp;

[0008] The loading unit is arranged above the clamping unit, and includes a vertically arranged rotating motor, a gear meshing with a rack is arranged at the lower end of its output shaft, a second linear mechanism is arranged above the rotating motor, a third linear mechanism is vertically arranged at one end of the output shaft of the second linear mechanism, four three-panel panels are arranged at the lower end of the output shaft of the third linear mechanism, and air holes penetrating from top to bottom are opened on the horizontal panel at the upper end of the three-panel panel, and the inner angles of the four three-panel panels are respectively used to match the four corners of the upper end surface of the PCR plate, and a vacuum tube connected to the air hole is arranged at the upper end of the three-panel panel for connecting a vacuum pump.

[0009] Furthermore, a slide groove is provided on one side of the first linear mechanism.

[0010] Furthermore, the clamping unit also includes a pair of bottom connecting plates, one end of a bottom connecting plate is provided with a vertical plate, an L-shaped horizontal plate is provided on the upper end of the vertical plate, the first linear mechanism is provided on the other bottom connecting plate, and the slide groove is provided on the other end of the two bottom connecting plates.

[0011] Furthermore, the loading unit also includes an L-shaped vertical plate, the inner side of which is provided with a slider that slides in the slide groove, the rotary motor is arranged on the inner side of the vertical side of the L-shaped vertical plate, and the second linear mechanism is arranged on the horizontal side of the L-shaped vertical plate.

[0012] Furthermore, a four-branch frame is provided at the lower end of the output shaft of the third linear mechanism, and each of the three panels is respectively provided at the outer end of each branch portion of the four-branch frame.

[0013] The beneficial effects of this technical solution are:

[0014] 1. When the staff holds the PCR plate, they clamp the PCR plate under the four three-panel plates from bottom to top and suck it from the top through vacuum. Since the upper end surface of the PCR plate is flat and the lower end surface is uneven, it is easier to align with the inner top surface of the three-panel plate. Therefore, this method is more stable than directly placing the PCR plate into the plate slot.

[0015] 2. The clamping unit can adjust the clamping according to the size of the PCR instrument. The three panels of the loading unit can also be adjusted according to the position of the plate slot of the specified PCR instrument by the rotating motor and the second linear mechanism, and the PCR plate is lowered by the third linear mechanism. After the PCR plate is close to the plate slot, it only needs to fall a very short distance, so it is not easy to spill reagents, and it has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram showing the positional relationship between the entire embodiment of the present application and the PCR instrument when in operation.

[0017] Figure 2 A three-dimensional diagram of a clamping unit according to an embodiment of the present application is shown.

[0018] Figure 3 The loading unit of the present application is shown in a partial three-dimensional manner. Figure 1 .

[0019] Figure 4 The loading unit of the present application is shown in a partial three-dimensional manner. Figure 2 . DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0021] like Figure 1~Figure 4 The PCR plate loading device for a PCR instrument shown comprises a clamping unit 1 and a loading unit 2.

[0022] The clamping unit 1 includes a pair of bottom connecting plates 11, one end of one bottom connecting plate 11 is provided with a vertical plate, the upper end of the vertical plate is provided with an L-shaped horizontal plate 12, the outer side surface of the long side of the L-shaped horizontal plate 12 is extended with a rack, the inner side surface of the short side of the L-shaped horizontal plate 12 is provided with a fixed L-shaped clamp 13, the other bottom connecting plate 11 is provided with a first linear mechanism 14 located below the L-shaped horizontal plate 12, a pair of connecting blocks are provided between the first linear mechanism 14 and the L-shaped horizontal plate 12, the other end of the first linear mechanism 14 is provided on a bottom block, the sliding end of the first linear mechanism 14 is provided with a sliding L-shaped clamp 15 arranged opposite to the fixed L-shaped clamp 13, and the other ends of the two bottom connecting plates 11 are provided with a slide groove 16.

[0023] The loading unit 2 is arranged above the clamping unit 1, and includes an L-shaped vertical plate 21, a horizontal portion is provided on the inner side surface of the vertical side, and a slider 22 slidably matched with the slide groove 16 is provided at the lower end of the horizontal portion. A side seat is also provided on the inner side surface of the vertical side of the L-shaped vertical plate 21, and a rotating motor 23 is vertically provided on one side of the side seat, and a gear 24 meshing with the rack is provided at the lower end of its output shaft. A second linear mechanism 25 is provided on the upper horizontal side of the L-shaped vertical plate 21, and a third linear mechanism 26 is vertically provided at one end of its output shaft, and a quarter frame 27 is provided at the lower end of the output shaft of the third linear mechanism 26. Three panels 28 are respectively provided at the outer ends of each branch of the quarter frame 27. The three panels 28 include three panels perpendicular to each other, and the horizontal panel at the upper end is provided with air holes running through the upper and lower ends. The inner side angles of the four three panels 28 are respectively used to match the four corners of the upper end surface of the PCR plate, and a vacuum tube 29 connected to the air hole is provided at the upper end of the three panels 28 for connecting to an external vacuum pump. The PCR plate under the three panels 28 is lifted up through the vacuum tube 29.

[0024] In this embodiment, the first linear mechanism 14 adopts a rodless linear cylinder, and the second linear mechanism 25 and the third linear mechanism 26 both adopt single-axis linear cylinders.

[0025] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. A PCR plate loading device for a PCR instrument, characterized in that: include: The clamping unit (1) comprises an L-shaped horizontal plate (12), a rack extending from the outer side of the long side of which, a fixed L-shaped clamp (13) is provided on the inner side of the short side of the L-shaped horizontal plate (12), and a first linear mechanism (14) is provided below the L-shaped horizontal plate (12), a sliding end of which is provided with a sliding L-shaped clamp (15) arranged opposite to the fixed L-shaped clamp (13); The loading unit (2) is arranged above the clamping unit (1), and comprises a vertically arranged rotating motor (23), the lower end of the output shaft of which is provided with a gear (24) meshing with a rack, a second linear mechanism (25) is arranged above the rotating motor (23), a third linear mechanism (26) is arranged vertically at one end of the output shaft of the second linear mechanism (25), four three-panel plates (28) are arranged at the lower end of the output shaft of the third linear mechanism (26), a horizontal plate at the upper end of the three-panel plate (28) is provided with air holes penetrating from top to bottom, the inner side angles of the four three-panel plates (28) are respectively used to match the four corners of the upper end surface of the PCR plate, and a vacuum tube (29) connected to the air hole is arranged at the upper end of the three-panel plate (28) for connecting to a vacuum pump.

2. The PCR plate loading device for a PCR instrument according to claim 1, characterized in that: A sliding groove (16) is provided on one side of the first linear mechanism (14).

3. The PCR plate loading device for a PCR instrument according to claim 2, characterized in that: The clamping unit (1) further comprises a pair of bottom connecting plates (11), one end of one bottom connecting plate (11) being provided with a vertical plate, an L-shaped horizontal plate (12) being provided at the upper end of the vertical plate, a first linear mechanism (14) being provided on the other bottom connecting plate (11), and a slide groove (16) being provided at the other ends of the two bottom connecting plates (11).

4. The PCR plate loading device for a PCR instrument according to claim 2, characterized in that: The loading unit (2) further comprises an L-shaped vertical plate (21), the inner side surface of the vertical side of which is provided with a slider (22) slidably engaged with the slide groove (16), the rotary motor (23) is arranged on the inner side of the vertical side of the L-shaped vertical plate (21), and the second linear mechanism (25) is arranged on the upper horizontal side of the L-shaped vertical plate (21).

5. The PCR plate loading device for a PCR instrument according to claim 1, characterized in that: A four-branch frame (27) is provided at the lower end of the output shaft of the third linear mechanism (26), and each of the three panels (28) is respectively provided at the outer end of each branch portion of the four-branch frame (27).

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