Plate washing device

Abstract

The utility model discloses a plate washing device which comprises a main machine provided with an operation box, a mounting plate is arranged on the main machine, a washing head and a liquid suction head are arranged on the main machine, the washing head and the liquid suction head are respectively provided with a plurality of liquid outlet needles and liquid suction needles, the washing head and the liquid suction head are respectively provided with a mounting cavity with a mounting groove, and wedge-shaped blocks are arranged in the mounting cavities. The liquid outlet needle and the liquid suction needle are both connected with fixing blocks matched with the wedge-shaped blocks and provided with springs, one end of each spring is connected to the corresponding fixing block, the other end of each spring is connected to the top of the corresponding mounting cavity, arch-shaped blocks connected through screws are arranged outside the mounting cavities, arc-shaped grooves are formed in the two ends of each arch-shaped block, and the arch-shaped blocks are rotationally connected with adjusting screw rods. The adjusting screw rod is connected to the wedge-shaped block through threads, a washing liquid bottle and a waste liquid bottle are arranged outside the main machine, the vertical position of the liquid outlet needle and the vertical position of the liquid suction needle can be adjusted independently, it is guaranteed that needle heads are located on the same plane, the liquid outlet needle and the liquid suction needle are convenient to install and replace, damaged needles can be replaced independently, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment for biological agent detection, in particular to a plate washing device. Background Art

[0002] At present, ELISA is the most widely used technology in enzyme immunoassay. Its main principle is to adsorb known antigens or antibodies on the surface of a solid phase carrier, and then allow the enzyme-labeled antigen-antibody to react on the surface of the solid phase carrier. The antigen-antibody complex formed on the solid phase carrier is then separated from other substances by washing. After the enzyme reaction substrate is added, the substrate and the enzyme react with a color reaction, and the antibody or antigen can be qualitatively or quantitatively analyzed by the depth of the color. The ELISA plate is the most commonly used solid phase carrier for ELISA. The ELISA plate generally includes a substrate with a plurality of wells arranged in a matrix. It should be carried out in the well position. After using the ELISA plate, it is necessary to use an ELISA plate cleaning device to clean some unbound substances and impurities after the reaction in the well position, so as to reduce the error caused by residues in subsequent detection. When cleaning the ELISA plate, washing liquid is injected through the discharge needle at the same time, and the waste liquid is sucked out through the aspiration needle. The needles of the discharge needle and the aspiration needle need to be on the same plane to avoid damage to the ELISA plate due to height difference. However, in the existing technology, the discharge needle and the aspiration needle often cannot adjust the position of each needle up and down separately, which increases the difficulty of processing. There are also problems such as the discharge needle and the aspiration needle being difficult to install and replace, or all of them need to be replaced when a single one is damaged. Utility Model Content

[0003] In response to the above-mentioned existing technology, the utility model provides a plate washing device, which can mainly adjust the upper and lower positions of the liquid outlet needle and the liquid suction needle separately to ensure that the needle heads are in the same plane, facilitate the installation and replacement of the liquid outlet needle and the liquid suction needle, and can replace damaged needles separately, thereby improving efficiency and reducing losses.

[0004] To achieve the above-mentioned purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0005] A plate washing device comprises a main unit provided with an operation box, a mounting plate with a transverse sliding fit is provided on the main unit, a washing head and a liquid suction head with a longitudinal sliding fit are provided on the main unit above the mounting plate, a plurality of liquid discharge needles and liquid suction needles arranged in a matrix are respectively arranged on the washing head and the liquid suction head on a side facing the mounting plate, the washing head and the liquid suction head are both provided with a mounting cavity with a mounting groove, a wedge block is provided in the mounting cavity, the wedge block is provided with a needle avoidance groove, the liquid discharge needle and the liquid suction needle are both fixedly connected to a fixed screw that cooperates with the wedge block A fixed block, the liquid outlet needle and the liquid suction needle are both sleeved with a spring, one end of the spring is connected to the fixed block, and the other end is connected to the top of the mounting cavity, and a bow block connected by a screw is provided outside the mounting cavity, and arc grooves are provided at both ends of the bow block, and the bow block is rotatably connected to an adjusting screw, and the adjusting screw is connected to the wedge block through a thread, and the liquid suction head corresponds to the liquid outlet needle one by one, and a washing liquid bottle for holding washing liquid and connected to the liquid outlet needle through a pump and a waste liquid bottle for holding waste liquid and connected to the liquid suction needle through a pump are provided outside the main unit.

[0006] Furthermore, a screw rod is rotatably connected to the host, the screw rod is provided with a matching screw rod nut, the screw rod nut is connected to the mounting plate, and the host is also provided with a guide rail with a slider, and the mounting plate is installed on the slider.

[0007] Furthermore, the main machine is further provided with a first hydraulic cylinder and a second hydraulic cylinder, and the first hydraulic cylinder and the second hydraulic cylinder are respectively connected to the washing head and the liquid suction head through lifting rods.

[0008] Furthermore, the installation cavity is provided with a positioning groove, and the wedge block is provided with a raised strip that cooperates with the positioning groove.

[0009] Furthermore, the washing head and the liquid suction head are provided with limiting bars, the limiting bars are arranged above the installation cavity, and the bow block is installed between the two limiting bars.

[0010] Furthermore, the mounting plate is provided with a first positioning plate and a second positioning plate, and both the first positioning plate and the second positioning plate are provided with waist holes.

[0011] Furthermore, the mounting plate is provided with a hinge seat and a fixed seat, the hinge seat is hinged to one end of a pressure rod, the other end of the pressure rod is hinged to a locking block with a pin hole, and the fixed seat is provided with a pin shaft that cooperates with the pin hole.

[0012] Furthermore, the wedge block is provided with a guide groove, and the fixed block is provided with a guide strip that cooperates with the guide groove.

[0013] The beneficial effect of the utility model is that after the liquid discharge needle and the liquid suction needle are installed in the installation cavity, the pressure of the spring makes the fixing block close to the wedge block, so that the position of the liquid discharge needle and the liquid suction needle is maintained, and the wedge block is moved forward or backward by rotating the adjusting screw, so that the upper and lower positions of a single liquid discharge needle or liquid suction needle can be adjusted separately, which is convenient for adjusting the needle heads of the liquid discharge needle and the liquid suction needle to be in the same plane, lowering the washing head to insert the liquid discharge needle into the hole position on the enzyme labeling plate, starting the pump to pump out the washing liquid for cleaning, and extracting the waste liquid through the liquid suction needle. For the liquid discharge needle and liquid suction needle that need to be replaced, the corresponding bow block is removed to replace the liquid discharge needle or liquid suction needle, which is convenient and quick, and there is no need to replace the entire row of liquid discharge needles and liquid suction needles, thereby improving efficiency and saving loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a plate washing device in an embodiment of the present application;

[0015] Figure 2 This is a schematic diagram of the structure of the washing head and the liquid suction head in the embodiment of the present application;

[0016] Figure 3 This is a partial cross-sectional view of the washing head and the liquid suction head in the embodiment of the present application;

[0017] Figure 4 This is a schematic structural diagram of the washing head in an embodiment of the present application;

[0018] Figure 5 This is a schematic diagram of point A in the embodiment of this application;

[0019] Figure 6 This is a structural diagram of the wedge block in the embodiment of the present application;

[0020] Figure 7 This is a schematic diagram of the wedge block structure in an embodiment of the present application;

[0021] Figure 8 This is a structural diagram of the mounting plate in an embodiment of the present application;

[0022] Description of Figure Numbers:

[0023] 1. Main unit; 2. Operation box; 3. Mounting plate; 4. Washing head; 5. Liquid aspiration head; 6. Liquid discharge needle; 7. Liquid aspiration needle; 8. Mounting slot; 9. Mounting cavity; 10. Wedge block; 11. Fixing block; 12. Spring; 13. Bow block; 131. Screw; 14. Arc groove; 15. Adjusting screw; 16. Washing liquid bottle; 17. Waste liquid bottle; 18. Screw; 19. Emergency stop switch; 20. Slider; 21. Guide rail; 22. First hydraulic cylinder; 23. Second hydraulic cylinder; 2 4. Lifting rod; 25. Positioning groove; 26. Raised strip; 27. Limiting strip; 28. First positioning plate; 29. ​​Second positioning plate; 30. Waist hole; 31. Hinge seat; 32. Fixed seat; 321. U-mouth; 33. Press rod; 34. Pin hole; 35. Locking block; 36. Pin shaft; 37. Guide groove; 38. Guide strip; 39. ELISA plate; 40. Pin avoidance groove; 41. Slope; 42. Inclined surface; 43. Hose; 44. Outer ring; 45. Inner ring; 46. Bearing seat. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the technical solution of the present invention in conjunction with the accompanying drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. In the following description, reference is made to "some embodiments", which describes a subset of all possible embodiments, but it should be understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

[0025] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0026] Example 1

[0027] Refer to the attached Figure 1-8, the present application provides a plate washing device, comprising a main unit 1 provided with an operation box 2, the main unit 1 is provided with an emergency stop switch 19, a mounting plate 3 with a lateral sliding fit is provided on the main unit 1, a washing head 4 and a liquid suction head 5 with a longitudinal sliding fit are provided on the main unit 1 above the mounting plate 3, a plurality of liquid discharge needles 6 and liquid suction needles 7 arranged in a matrix are respectively arranged on the surface of the washing head 4 and the liquid suction head 5 facing the mounting plate 3, the washing head 4 and the liquid suction head 5 are both provided with a mounting cavity 9 with a mounting groove 8, the mounting groove 8 is used to avoid air and guide the liquid discharge needle 6 and the liquid suction needle 7, a wedge block 10 is provided in the mounting cavity 9, the wedge block 10 is provided with a needle avoidance groove 40, the liquid discharge needle 6 and the liquid suction needle The liquid needles 7 are fixedly connected to a fixed block 11 that cooperates with the wedge block 10. The wedge block 10 is provided with a slope 41 on one side facing the fixed block 11, and the fixed block 11 is provided with a slope 42 that cooperates with the slope 41. The liquid discharge needle 6 and the liquid suction needle 7 are both sleeved with a spring 12, one end of the spring 12 is connected to the fixed block 11, and the other end is connected to the top of the mounting cavity 9. The outside of the mounting cavity 9 is provided with a bow block 13 connected by a screw 131, and arc grooves 14 are provided at both ends of the bow block 13. The arc grooves 14 are used to position the liquid discharge needle 6 and the liquid suction needle 7. The bow block 13 is rotatably connected to an adjusting screw 15, and the adjusting screw 15 is fixed with an outer ring 44 and an inner ring 45. The outer ring 44 and the inner ring 45 are fixed to the outer ring 44. The ring 44 and the inner ring 45 are respectively arranged on both sides of the bow plate to limit the movement of the adjusting screw 15. The adjusting screw 15 is connected to the wedge block 10 by a thread. Rotating the adjusting screw 15 can make the wedge block 10 move forward or backward. The pipette head 5 corresponds to the liquid outlet needle 6 one by one. A washing liquid bottle 16 for holding washing liquid and connected to the liquid outlet needle 6 through a pump and a waste liquid bottle 17 for holding waste liquid and connected to the pipette needle 7 through a pump are provided outside the host 1. All the liquid outlet needles 6 on the washing head 4 are connected in parallel to the hose 43 and connected to the washing liquid bottle 16 through a pump. All the pipette needles 7 on the pipette head 5 are connected in parallel to the hose 43 and connected to the waste liquid bottle through a pump. 17. During operation, first install the liquid discharge needle 6 and the liquid suction needle 7 in the installation cavity 9. Then, the pressure of the spring 12 causes the fixing block 11 to be tightly attached to the wedge block 10, so that the positions of the liquid discharge needle 6 and the liquid suction needle 7 are maintained. By rotating the adjusting screw 15, the wedge block 10 is moved forward or backward, so as to adjust the upper and lower positions of the single liquid discharge needle 6 or the liquid suction needle 7 individually, and conveniently adjust the needle heads of the liquid discharge needle 6 and the liquid suction needle 7 to be in the same plane. Lower the washing head 4 to insert the liquid discharge needle 6 into the hole on the ELISA plate 39, start the pump to pump out the washing liquid for cleaning, and extract the waste liquid through the liquid suction needle 7. During the process, for the liquid discharge needle 6 and the liquid suction needle 7 that are damaged or need to be replaced,The liquid discharge needle 6 or the liquid suction needle 7 can be replaced by removing the corresponding bow block 13, which is convenient and quick, and does not require replacing the entire row of liquid discharge needles 6 and the liquid suction needles 7, thereby improving efficiency, saving loss, and being easy to operate.

[0028] Specifically, a screw rod 18 is rotatably connected to the host 1, and the screw rod 18 is a ball screw 18. Bearing seats 46 are provided at both ends of the screw rod 18. One end of the screw rod 18 is connected to a motor, and the screw rod 18 is provided with a matching screw rod 18 nut. The screw rod 18 nut is connected to the bottom of the mounting plate 3. The host 1 is also provided with a guide rail 21 with a slider 20. The mounting plate 3 is mounted on the slider 20. The motor is started to drive the screw rod 18 to rotate, so that the mounting seat can move back and forth horizontally on the host 1. The transmission is through the screw rod 18 with high precision, so that the ELISA plate 39 is not easily displaced when moving back and forth on the mounting seat for cleaning, avoiding needle collision, and has a simple structure.

[0029] Specifically, the main unit 1 is further provided with a first hydraulic cylinder 22 and a second hydraulic cylinder 23. The first hydraulic cylinder 22 and the second hydraulic cylinder 23 are respectively connected to the washing head 4 and the liquid suction head 5 through a lifting rod 24. The first hydraulic cylinder 22 is used to independently control the lifting of the washing head 4 to spray liquid for cleaning the ELISA plate 39, and the second hydraulic cylinder 23 is used to independently control the lifting of the liquid suction head 5 to suck out the waste liquid. They do not interfere with each other and have a simple structure.

[0030] Specifically, the installation cavity 9 is provided with a positioning groove 25, and the wedge block 10 is provided with a raised strip 26 that cooperates with the positioning groove 25. The raised strip 26 and the positioning groove 25 cooperate to limit and guide, so that the wedge block 10 can be installed quickly and accurately, and it also plays a role in positioning the wedge block 10, and the structure is simple.

[0031] Example 2

[0032] Refer to the attached Figure 1-8 The difference between this embodiment and embodiment 1 is that a plurality of limit bars 27 are provided on the washing head 4 and the liquid suction head 5, and two limit bars 27 are provided above and below each of the installation cavities 9. The bow block 13 is installed between the two limit bars 27 for positioning the bow block 13, facilitating the installation of the bow block 13, and having a simple structure.

[0033] Specifically, the mounting plate 3 is provided with a first positioning plate 28 and a second positioning plate 29, and the first positioning plate 28 and the second positioning plate 29 are both provided with a waist hole 30. By installing the first positioning plate 28 and the second positioning plate 29 around the enzyme labeling plate 39, the enzyme labeling plate 39 is positioned to facilitate the placement of the enzyme labeling plate 39. The first positioning plate 28 and the second positioning plate 29 are both provided with the waist hole 30, which is convenient for adjustment when the position of the enzyme labeling plate 39 needs to be adjusted. When adjusting, first loosen the first positioning plate 28 and the second positioning plate 29, first match the holes on the enzyme labeling plate 39 with the liquid outlet needle 6 and the liquid aspiration needle 7, align the positions, and place the first positioning plate 28 and the second positioning plate 29 close to the enzyme labeling plate 39 and lock them. The structure is simple and easy to use.

[0034] The cam 33 is fixed to the top of the mounting plate 39 so as to prevent the cam 33 from sliding out of the mounting plate 39. The cam 33 is fixed to the mounting plate 39 so as to prevent the cam 33 from sliding out of the mounting plate 39. The cam 33 is fixed to the mounting plate 39 so as to prevent the cam 33 from sliding out of the mounting plate 39.

[0035] Specifically, the wedge block 10 is provided with a guide groove 37, and the fixed block 11 is provided with a guide bar 38 that cooperates with the guide groove 37. Through the cooperation of the guide bar 38 and the guide groove 37, the position of the fixed block 11 is effectively restricted to prevent deviation and cause the liquid outlet needle 6 and the liquid suction needle 7 to bend and deform, and the structure is simple.

[0036] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. The scope of protection of the present utility model should be based on the scope of protection of the claims.

Claims

1. A plate washing device, characterized in that: The invention comprises a main body provided with an operation box, a mounting plate with a transverse sliding fit is provided on the main body, a washing head and a liquid suction head with a longitudinal sliding fit are provided on the main body above the mounting plate, a plurality of liquid discharge needles and liquid suction needles arranged in a matrix are respectively arranged on the surface of the washing head and the liquid suction head facing the mounting plate, the washing head and the liquid suction head are both provided with a mounting cavity with a mounting groove, a wedge-shaped block is provided in the mounting cavity, the liquid discharge needle and the liquid suction needle are both fixedly connected to a fixed block that cooperates with the wedge block, the liquid discharge needle and The aspiration needles are each sleeved with a spring, one end of the spring is connected to the fixed block, and the other end is connected to the top of the mounting cavity. Bow blocks connected by screws are provided outside the mounting cavity, and arc grooves are provided at both ends of the bow blocks. The bow blocks are rotatably connected to an adjusting screw, and the adjusting screw is connected to the wedge block through a thread. The aspiration head corresponds to the liquid outlet needle one by one, and a washing liquid bottle for holding washing liquid and connected to the liquid outlet needle through a pump and a waste liquid bottle for holding waste liquid and connected to the aspiration needle through a pump are provided outside the main unit.

2. A plate washing device according to claim 1, characterized in that: The host is rotatably connected to a screw rod, the screw rod is provided with a matching screw rod nut, the screw rod nut is connected to the mounting plate, the host is also provided with a guide rail with a slider, and the mounting plate is installed on the slider.

3. A plate washing device according to claim 1, characterized in that: The main machine is further provided with a first hydraulic cylinder and a second hydraulic cylinder, and the first hydraulic cylinder and the second hydraulic cylinder are respectively connected to the washing head and the liquid suction head through lifting rods.

4. A plate washing device according to claim 1, characterized in that: The installation cavities are each provided with a positioning groove, and the wedge-shaped blocks are provided with a raised strip that matches the positioning groove.

5. A plate washing device according to claim 1, characterized in that: The washing head and the liquid suction head are provided with limiting strips, the limiting strips are arranged above the installation cavity, and the bow block is installed between the two limiting strips.

6. A plate washing device according to claim 1, characterized in that: The mounting plate is provided with a first positioning plate and a second positioning plate, and both the first positioning plate and the second positioning plate are provided with waist holes.

7. A plate washing device according to claim 6, characterized in that: The mounting plate is provided with a hinge seat and a fixing seat, the hinge seat is hinged to one end of a pressure rod, the other end of the pressure rod is hinged to a locking block with a pin hole, and the fixing seat is provided with a pin shaft that matches the pin hole.

8. A plate washing device according to claim 1, characterized in that: The wedge block is provided with a guide groove, and the fixed block is provided with a guide strip matched with the guide groove.

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