Plate washing machine

Abstract

The utility model relates to a plate washing machine, and belongs to the technical field of biochemical equipment, the plate washing machine comprises a liquid injection head, the liquid injection head comprises a first needle seat, a first cover plate and a plurality of rows of liquid injection needles, the liquid injection needles are arranged on the liquid injection head in a rectangular array mode, the first needle seat is provided with a liquid injection channel, and the two ends of each liquid injection needle are open; the liquid injection needle is communicated with the liquid injection channel, a liquid inlet is formed in the side wall of the liquid injection needle, a blocking head used for closing the liquid inlet is arranged in the liquid injection needle in a sliding mode, the blocking head slides in the axis direction of the liquid injection needle, and the plate washing machine further comprises a driving part used for driving the blocking head to slide. The micro-pore cleaning device has the effect of conveniently cleaning rows or columns of micro-pores.

Description

Technical Field

[0001] The present application relates to the technical field of biochemical equipment, and in particular to a plate washer. Background Art

[0002] The plate washer is specially used to clean ELISA plates and is usually used in conjunction with an ELISA reader. It has been widely used in hospitals, blood stations, health and epidemic prevention stations, reagent factories, and research laboratories for cleaning ELISA plates.

[0003] At present, a patent document with authorization announcement number CN208288578U discloses a plate washer, including a liquid injection mechanism, a liquid suction mechanism and a tray mechanism, wherein the liquid injection mechanism includes a liquid injection head, the liquid suction mechanism includes a liquid suction head and a first driving mechanism, the liquid suction head and the liquid injection head are arranged side by side in the left and right direction, and the first driving mechanism is connected to the liquid suction head to drive the liquid suction head to move up and down; the tray mechanism includes a tray and a second driving mechanism, the tray is suitable for loading microplates, and the second driving mechanism is connected to the tray to drive the tray to rotate below the liquid suction head and the liquid injection head. The above-mentioned plate washer has an independent liquid injection mechanism and a liquid suction mechanism, and its structure is simple and convenient for processing. In addition, when cleaning or repair and maintenance is required, the liquid injection mechanism or the liquid suction mechanism can be disassembled in a targeted manner. Due to the simple structure of the internal pipeline and channel, its cleaning or repair and maintenance is more convenient.

[0004] However, the injection needle cannot clean one or more rows of microwells on the ELISA plate at the same time, which limits the use of the plate washer. Utility Model Content

[0005] In order to facilitate the cleaning of microwells arranged in rows or columns, the present application provides a plate washer.

[0006] The plate washer provided in this application adopts the following technical solution:

[0007] A plate washer comprises an injection head, wherein the injection head comprises a first needle seat, a first cover plate and multiple rows of injection needles, the injection needles are arranged in a rectangular array on the injection head, the first needle seat is provided with an injection channel, both ends of the injection needle are opened, the injection needle is connected to the injection channel, a liquid inlet is provided on the side wall of the injection needle, a plugging head for closing the liquid inlet is slidably provided inside the injection needle, the plugging head slides along the axial direction of the injection needle, and the plate washer also comprises a driving member for driving the plugging head to slide.

[0008] Optionally, connecting rods are provided between the injection needles in the horizontal and vertical directions, the connecting rods are slidably connected to the plugging head, the ends of the connecting rods abut against the plugging head, the driving member includes an electric push rod arranged in the injection head, the connecting rod at the end is fixedly arranged on the output shaft of the electric push rod, and the driving member also includes a fixing member for fixing the connecting rod to the plugging head.

[0009] Optionally, the fixing member includes a metal ring sleeved on the plugging head and an electromagnet arranged at the end of the connecting rod, and the electromagnet is used for electrical connection and fixed on the metal ring.

[0010] Optionally, a first magnet is further provided at the end of the connecting rod, and the first magnet is adsorbed on the metal ring to temporarily fix the connecting rod to the metal ring.

[0011] Optionally, a partition is provided in the injection head, the lower part of the partition is the injection cavity, the upper part of the partition is the suction cavity, the injection needle is connected to the injection cavity, and a plurality of suction needles are provided on the injection head, and the suction needles are located on one side of the injection needle and between adjacent connecting rods.

[0012] Optionally, the body of the electric push rod is fixedly disposed on a partition, and the output shaft of the electric push rod faces away from the partition and has a length direction perpendicular to the partition.

[0013] Optionally, an injection tube is provided in the injection cavity, the injection tube is connected to the injection channel, the injection tube surrounds the inner wall of the injection cavity, and a plurality of liquid outlets are opened on the injection tube.

[0014] Optionally, along the length direction of the injection tube, the diameter of the liquid outlet gradually increases.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. When cleaning the ELISA plate, the cleaning liquid passes through the injection channel, enters the injection needle, and then enters the ELISA plate through the injection needle to complete the flushing operation of the ELISA plate; when it is necessary to clean the cleaning holes in rows or columns, the corresponding driving parts drive the corresponding plugging heads to slide, and the plugging heads slide to open the liquid inlet, and the other liquid inlets are in a closed state, so as to facilitate the cleaning of specific cleaning holes, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a plate washer according to an embodiment of the present application;

[0018] Figure 2 It is a structural schematic diagram of a liquid injection head in a plate washer according to an embodiment of the present application;

[0019] Figure 3is a cross-sectional view of a liquid injection head in a plate washer according to an embodiment of the present application;

[0020] Figure 4 yes Figure 3 A magnified schematic diagram of part A;

[0021] Figure 5 This is a schematic diagram of the arrangement of injection needles in a plate washer according to an embodiment of the present application.

[0022] Description of reference numerals: 1, injection head; 111, first needle seat; 112, first cover plate; 113, injection needle; 2, injection channel; 3, liquid inlet; 4, plugging head;

[0023] 5. Driving member; 51. Electric push rod; 52. Electromagnet; 53. Metal ring;

[0024] 6. Connecting rod; 7. Partition plate; 8. Liquid injection tube. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-5 This application is described in further detail.

[0026] The present application embodiment discloses a plate washer. Figure 1 , Figure 2 and Figure 3 The plate washer comprises an injection head 1, the injection head 1 comprises a first needle seat 111, a first cover plate 112 and a plurality of rows of injection needles 113, the injection needles 113 are arranged in a rectangular array on the injection head 1, an injection channel 2 is provided on the first needle seat 111, both ends of the injection needle 113 are open, the injection needle 113 is connected to the injection channel 2, a liquid inlet 3 is provided on the side wall of the injection needle 113, a plugging head 4 for closing the liquid inlet 3 is slidably provided in the injection needle 113, and the plugging head 4 slides along the axial direction of the injection needle 113 The plate washer also includes a driving member 5 for driving the plugging head 4 to slide; when the ELISA plate is cleaned, the cleaning liquid passes through the injection channel 2, enters the injection needle 113, and then enters the ELISA plate through the injection needle 113 to complete the washing operation of the ELISA plate; when it is necessary to clean the cleaning holes in rows or columns, the corresponding plugging head 4 is driven to slide through the corresponding driving member 5, and the plugging head 4 slides to open the liquid inlet 3, and the other liquid inlets 3 are in a closed state, so as to facilitate the cleaning of specific cleaning holes, and the operation is simple and convenient.

[0027] Reference Figure 3 , Figure 4 and Figure 5In the embodiment of the present application, a connecting rod 6 is disposed between the horizontal and vertical injection needles 113, the length direction of the connecting rod 6 is perpendicular to the length direction of the connecting rod 6, the connecting rod 6 is slidably connected to the plugging head 4, the end of the connecting rod 6 abuts against the plugging head 4, the driving member 5 includes an electric push rod 51 disposed in the injection head 1, the connecting rod 6 at the end is fixedly disposed on the output shaft of the electric push rod 51, and the driving member 5 also includes a fixing member for fixing the connecting rod 6 to the plugging head 4;

[0028] Reference Figure 3 , Figure 4 and Figure 5 The fixing part includes a metal ring 53 which is sleeved on the plugging head 4 and an electromagnet 52 which is arranged at the end of the connecting rod 6. The electromagnet 52 is fixed on the metal ring 53 for electrical connection.

[0029] When it is necessary to clean the corresponding rows or columns of cleaning holes, start the corresponding electromagnet 52, the electromagnet 52 is adsorbed on the metal ring 53, and the connecting rod 6 is fixed on the metal ring 53. At this time, the plugging heads 4 in the rows or columns are connected as a whole due to the connecting rod 6, and then start the electric push rod 51, the electric push rod 51 drives the connecting rod 6 to move, and the movement of the connecting rod 6 drives the plugging heads 4 to move, and the liquid inlet 3 is opened. The operation is simple and convenient.

[0030] Reference Figure 3 , Figure 4 and Figure 5 In order to reduce the possibility of the connecting rod 6 and the metal ring 53 being separated, a first magnet is also provided at the end of the connecting rod 6. The first magnet is adsorbed on the metal ring 53 and is used to temporarily fix the connecting rod 6 to the metal ring 53. Under the action of the first magnet, the connecting rod 6 and the metal ring 53 are connected as a whole, thereby reducing the possibility of the connecting rod 6 falling off the metal ring 53, thereby facilitating the electromagnet 52 to connect the connecting rod 6 and the metal ring 53 as a whole.

[0031] Reference Figure 3 , Figure 4 and Figure 5 In the embodiment of the present application, a partition 7 is provided in the injection head 1, the lower part of the partition 7 is the injection cavity, the upper part of the partition 7 is the suction cavity, the injection needle 113 is connected to the injection cavity, and a plurality of suction needles (not shown in the figure) are provided on the injection head 1, the suction needles are located on one side of the injection needle 113 and between adjacent connecting rods 6; the suction needles are located on one side of the injection needle 113, which reduces the possibility of interference between the suction needles and the injection needle 113, thereby facilitating the suction needles to discharge the cleaning liquid.

[0032] Reference Figure 3 , Figure 4 and Figure 5In order to reduce the possibility of the electric push rod 51 being damaged by the cleaning fluid, the body of the electric push rod 51 is fixedly arranged on the partition 7, and the output shaft of the electric push rod 51 is away from the partition 7 and the length direction is perpendicular to the partition 7.

[0033] Reference Figure 3 , Figure 4 and Figure 5 In order to facilitate the injection of cleaning liquid into the opened injection needle 113, an injection tube 8 is provided in the injection cavity, the injection tube 8 is connected with the injection channel 2, the injection tube 8 surrounds the inner wall of the injection cavity, and a plurality of liquid outlets are provided on the injection tube 8; under the action of the injection tube 8, the cleaning liquid can be injected into the injection cavity more evenly, thereby facilitating the injection of cleaning liquid into the opened injection needle 113.

[0034] Reference Figure 3 , Figure 4 and Figure 5 Furthermore, along the length direction of the injection tube 8, the diameter of the liquid outlet gradually increases; the diameter of the liquid outlet gradually increases, which slows down the reduction of the injection pressure, thereby facilitating the injection of the cleaning liquid into the injection needle 113.

[0035] The implementation principle of a plate washer in the embodiment of the present application is:

[0036] When it is necessary to clean the corresponding rows or columns of cleaning holes, start the corresponding electromagnet 52, the electromagnet 52 is adsorbed on the metal ring 53, and the connecting rod 6 is fixed on the metal ring 53. At this time, the plugging heads 4 in the rows or columns are connected as a whole due to the connecting rod 6, and then start the electric push rod 51, the electric push rod 51 drives the connecting rod 6 to move, and the movement of the connecting rod 6 drives the plugging heads 4 to move, and the liquid inlet 3 is opened. The operation is simple and convenient.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A plate washer, characterized in that: The invention comprises an injection head (1), wherein the injection head (1) comprises a first needle seat (111), a first cover plate (112) and a plurality of rows of injection needles (113); the injection needles (113) are arranged in a rectangular array on the injection head (1); an injection channel (2) is provided on the first needle seat (111); both ends of the injection needle (113) are open; the injection needle (113) is connected to the injection channel (2); a liquid inlet (3) is provided on the side wall of the injection needle (113); a plugging head (4) for closing the liquid inlet (3) is slidably provided inside the injection needle (113); the plugging head (4) slides along the axial direction of the injection needle (113); and the plate washer further comprises a driving member (5) for driving the plugging head (4) to slide.

2. A plate washer according to claim 1, characterized in that: A connecting rod (6) is arranged between the injection needles (113) in the horizontal and vertical directions. The connecting rod (6) is slidably connected to the plugging head (4). The end of the connecting rod (6) abuts against the plugging head (4). The driving member (5) includes an electric push rod (51) arranged in the injection head (1). The connecting rod (6) at the end is fixedly arranged on the output shaft of the electric push rod (51). The driving member (5) also includes a fixing member for fixing the connecting rod (6) to the plugging head (4).

3. A plate washer according to claim 2, characterized in that: The fixing member comprises a metal ring (53) sleeved on the plugging head (4) and an electromagnet (52) arranged at the end of the connecting rod (6); the electromagnet (52) is used for electrical connection and is fixed on the metal ring (53).

4. A plate washer according to claim 3, characterized in that: A first magnet is also provided at the end of the connecting rod (6), and the first magnet is adsorbed on the metal ring (53) to temporarily fix the connecting rod (6) to the metal ring (53).

5. A plate washer according to claim 2, characterized in that: A partition (7) is provided in the injection head (1); a liquid injection cavity is provided below the partition (7); a liquid suction cavity is provided above the partition (7); the injection needle (113) is connected to the injection cavity; a plurality of liquid suction needles are provided on the injection head (1); the liquid suction needles are located on one side of the injection needle (113) and between adjacent connecting rods (6).

6. A plate washer according to claim 5, characterized in that: The body of the electric push rod (51) is fixedly arranged on the partition (7); the output shaft of the electric push rod (51) is away from the partition (7) and the length direction is perpendicular to the partition (7).

7. A plate washer according to claim 5, characterized in that: A liquid injection tube (8) is arranged in the liquid injection cavity. The liquid injection tube (8) is connected to the liquid injection channel (2). The liquid injection tube (8) surrounds the inner wall of the liquid injection cavity. A plurality of liquid outlets are provided on the liquid injection tube (8).

8. A plate washer according to claim 7, characterized in that: Along the length direction of the liquid injection pipe (8), the diameter of the liquid outlet gradually increases.

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