Perforated plate washing machine

Abstract

The utility model discloses a perforated plate washing machine, which comprises a washing mechanism, a conveying mechanism, a material plate positioning mechanism I and a material plate positioning mechanism II, the washing mechanism comprises a liquid supply part and a liquid discharge part, a plurality of injection needles are arranged at the bottom of the liquid supply part, and a plurality of liquid discharge needles corresponding to the injection needles one by one are arranged at the bottom of the liquid discharge part. The liquid supply part and the liquid discharge part are respectively connected with a pressure pump; the bottoms of the cleaning mechanism, the first material plate positioning mechanism and the second material plate positioning mechanism are each provided with a tray jacking mechanism, each tray jacking mechanism comprises material jacking parts arranged on the two sides of the conveying mechanism, and power pieces are arranged at the bottoms of the material jacking parts. The first material plate positioning mechanism and the second material plate positioning mechanism both comprise stacking grooves formed in the upper portion of the conveying mechanism, a first telescopic limiting piece is arranged on the lower portion of the first material plate positioning mechanism, and a second telescopic limiting piece is arranged on the lower portion of the second material plate positioning mechanism. The cleaning device has the advantages of being good in cleaning effect, high in efficiency and easy to operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning experimental tools, and in particular relates to a multi-well plate washer. Background Art

[0002] ELISA enzyme-linked immunosorbent assay is to bind known antigens or antibodies to the surface of a solid phase carrier, i.e., the wells of an ELISA plate, and then use enzyme-labeled antibodies or antigens to bind to them, and then use colorants to develop color. The depth of color development is proportional to the content of the substance to be tested and can be observed with the naked eye. In an ELISA experiment, there are three necessary reagents: known antigens or antibodies; enzyme-labeled antibodies or antigens; and colorants.

[0003] ELISA plates play a key role in ELISA. One of the key points in optimizing ELISA is washing, and there are two ways to wash the plate: manual washing and plate washing with a plate washer. The washing steps reduce the background signal caused by unbound antibodies, thereby increasing the signal-to-noise ratio of the analysis. Washing between each step ensures that only specific reagents are retained to generate a signal in the final step. Inadequate washing can lead to differences and high background, resulting in undesirable results.

[0004] The problem with the prior art is that when cleaning a porous plate for a test, such as an ELISA plate, the washing liquid easily flows between adjacent holes, affecting the cleaning effect; when cleaning the experimental plate, the cleaning efficiency is low and the amount of repetitive work is large. Summary of the invention

[0005] The utility model aims to provide a multi-hole plate washer to solve the problems existing in the prior art, which has the advantages of good cleaning effect, high efficiency and simple operation.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a multi-well plate washing machine, including a cleaning mechanism, a conveying mechanism, a material plate positioning mechanism 1 and a material plate positioning mechanism 2, the cleaning mechanism includes a liquid supply part and a liquid discharge part, the bottom of the liquid supply part is provided with a plurality of injection needles, the bottom of the liquid discharge part is provided with a plurality of liquid discharge needles corresponding to the injection needles, the liquid supply part and the liquid discharge part are respectively connected to a pressure pump; the bottoms of the cleaning mechanism and the material plate positioning mechanism 1 and 2 are both provided with a top plate mechanism, the top plate mechanism includes a material lifting part arranged on both sides of the conveying mechanism, and the bottom of the material lifting part is provided with a power part; the material plate positioning mechanism 1 and 2 both include a stacking groove arranged on the upper part of the conveying mechanism, the lower part of the material plate positioning mechanism 1 is provided with a telescopic limit member 1, and the lower part of the material plate positioning mechanism 2 is provided with a telescopic limit member 2.

[0007] In the above scheme, the stacking grooves of the first and second material plate positioning mechanisms are used for placing the material plates to be cleaned and stacking the cleaned material plates, which is convenient for centralized taking and placing of the material plates. The telescopic limiter at the lower part of the material plate positioning mechanism can be controlled by cooperating with the top material part. When working, the top material part at one part of the material plate positioning mechanism rises and drives the limiter to move so that the porous material plate falls onto the top material part. The top material part descends and places the porous material plate on the conveying mechanism for circulation. During the process, the limiter resets to prevent the porous material plate on the upper side from falling. The top material parts are arranged on both sides of the conveying mechanism to avoid interference. The power part is used to control the lifting and lowering of the top material part. The conveying mechanism conveys the multiple material plates to the cleaning mechanism; the top material part at the cleaning mechanism transfers the porous material The plate is lifted up to allow the drainage needle to extend into the bottom of the hole groove on the porous material plate. Each hole groove on the porous material plate corresponds to a group of injection needles and drainage needles. Under the action of the pressure pump of the liquid supply part, the cleaning liquid is pressed along the internal channel of the liquid supply part to the injection needle for discharge to clean the hole groove. After cleaning, the pressure pump of the drainage part works to discharge the waste liquid in the hole groove. Then the material lifting part at this place descends, so that the porous material plate flows to the second material plate positioning mechanism along the conveying mechanism. The telescopic limiter 2 on the cleaning side cooperates with the porous material plate to control. When the porous material plate rises, the telescopic limiter 2 is actuated, and the porous material plate is reset after passing through. The placed material plate descends, and the material lifting part is reset to complete the cleaning and stacking of the porous material plate.

[0008] Furthermore, the liquid supply part is arranged on the top of the liquid discharge part, the injection needle is arranged to penetrate the liquid discharge part, and the bottom height of the injection needle is higher than the bottom height of the liquid discharge needle.

[0009] By stacking the liquid supply part and the liquid discharge part up and down, it is convenient to arrange the injection needle and the liquid discharge needle accordingly. The bottom end of the liquid discharge needle is relatively low, which is convenient for absorbing all the waste liquid in the hole groove of the porous material plate.

[0010] Furthermore, the liquid supply part is connected to a liquid supply pipeline, the liquid discharge part is connected to a liquid discharge pipeline, and the liquid supply pipeline and the liquid discharge pipeline are each provided with the pressure pump.

[0011] The liquid supply pipeline is connected with the washing liquid, and the washing liquid is transported to the injection needle under the action of the pressure pump, and the liquid discharge pipeline absorbs and discharges the waste liquid under the action of the pressure pump.

[0012] Furthermore, a plurality of guide holes are correspondingly provided on the liquid supply part and the liquid discharge part, weights are slidably arranged in the guide holes, and the bottom ends of the weights are connected to a splash-proof cover plate.

[0013] The weight is guided by the guide hole so that it can be raised and lowered. The splash-proof cover at the bottom of the weight is used to cover the mouth of the hole slot when the porous material plate is raised to prevent the washing liquid in the hole slot from splashing out during the washing process and affecting the adjacent hole slots. A number of needle holes are opened on the splash-proof cover for the injection needle and the drainage needle to pass through.

[0014] Further, the first and second material plate positioning mechanisms respectively include two U-shaped guiding members arranged oppositely. A stacking groove is formed between the two U-shaped guiding members, and a first telescopic limiting member or a second telescopic limiting member is provided on the U-shaped guiding member.

[0015] The stacking groove is formed by the two U-shaped guiding members, which is convenient for the positioning and stacking of the porous material plates and automatic loading and unloading. The first telescopic limiting member or the second telescopic limiting member is arranged on the U-shaped guiding member to cooperate with the material pushing part or the porous material plate.

[0016] Further, the first telescopic limiting member includes a first inclined pressure-receiving surface for cooperating with the corresponding material pushing part. The bottom of the second telescopic limiting member includes a second inclined pressure-receiving surface for cooperating with the porous material plate. Both the first telescopic limiting member and the second telescopic limiting member are connected with return springs.

[0017] During the rising process of the material pushing part on the side to be cleaned, it contacts the first inclined pressure-receiving surface to retract the first telescopic limiting member, and the upper porous material plate can then fall onto the material pushing part. After the material pushing part descends, the return spring makes the first telescopic limiting member reset; during the rising process of the porous material plate on the side that has been cleaned, it contacts the second inclined pressure-receiving surface to retract the second telescopic limiting member. After the porous material plate passes through, the return spring makes the second telescopic limiting member reset. The material pushing part at this place does not contact the second telescopic limiting member to avoid interference.

[0018] Further, the cleaning mechanism, the conveying mechanism, the first material plate positioning mechanism and the second material plate positioning mechanism are arranged on the workbench, and guiding baffles are arranged on both sides of the conveying mechanism on the workbench.

[0019] The workbench is used for positioning and supporting the cleaning mechanism, the conveying mechanism, the first material plate positioning mechanism and the second material plate positioning mechanism. Guiding baffles are arranged on the workbench to guide and limit both sides of the porous material plate to ensure the positioning of the porous material plate.

[0020] Further, the conveying mechanism includes a conveyor belt, and a plurality of positioning blocks are equidistantly arranged on the surface of the conveyor belt.

[0021] The positioning blocks on the conveyor belt are used for positioning the porous material plate in the moving direction, avoiding the deflection of the material plate and facilitating the movement of the porous material plate.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] 1. By setting the first and second material plate positioning mechanisms, it is convenient for the material plates to be cleaned to be centrally placed and the cleaned material plates to be stacked. Under the cooperation of the top plate mechanism and the conveying mechanism, the material plates to be cleaned are sequentially moved to the cleaning mechanism for cleaning. The operation is simple, reducing the workload of manual repeated cleaning and handling; through the first and second telescopic limiting members, the positioning of the porous material plates can be controlled, the structure is simple, and the manual workload is reduced;

[0024] 2. Several groups of injection needles and drainage needles on the cleaning mechanism work in cooperation, enabling the simultaneous flushing of all the holes and grooves on the porous plate and discharging the waste liquid after cleaning, avoiding the large - scale flow of the washing liquid between the holes and grooves, causing cross - contamination, and improving the cleaning effect and efficiency;

[0025] 3. The setting of weights and splash - proof covers can prevent the washing liquid from splashing and affecting adjacent holes and grooves, ensuring the site cleanliness and improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. 9 is a three - dimensional structure diagram of a multi - hole plate washing machine in Embodiment 1 of the present utility model;

[0027] Figure 2 FIG. 13 is a schematic structural diagram of the cleaning mechanism in Embodiment 1 of the present utility model;

[0028] Figure 3 FIG. 17 is a connection schematic diagram of the first telescopic limiting member in Embodiment 1 of the present utility model;

[0029] In the figures: 1, positioning block; 2, conveyor belt; 3, guiding baffle; 4, liquid supply part; 5, liquid drainage part; 6, injection needle; 7, drainage needle; 8, pressure pump; 9, material pushing part; 10, power member; 11, stacking groove; 12, first telescopic limiting member; 13, second telescopic limiting member; 14, liquid supply pipeline; 15, liquid drainage pipeline; 16, guiding hole; 17, weight; 18, splash - proof cover; 19, C - shaped guiding member; 20, first inclined pressure - receiving surface; 21, second inclined pressure - receiving surface; 22, return spring; 23, workbench; 24, limiting projection; 25, support block; 26, porous plate; 27, support seat; 28, first plate positioning mechanism; 29, second plate positioning mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work fall within the scope of protection of the present utility model. In the description of the present utility model, it should be noted that the terms "front", "rear", "left", "right", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, and are only for the convenience of describing the present utility model or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0031] Embodiment 1

[0032] like Figure 1-3 As shown, a multi-well plate washing machine includes a cleaning mechanism, a conveying mechanism, a material plate positioning mechanism 1 28 and a material plate positioning mechanism 29, the cleaning mechanism includes a liquid supply part 4 and a liquid discharge part 5, the bottom of the liquid supply part 4 is provided with a plurality of injection needles 6, the bottom of the liquid discharge part 5 is provided with a plurality of liquid discharge needles 7 corresponding to the injection needles 6, the liquid supply part 4 and the liquid discharge part 5 are respectively connected to a pressure pump 8; the bottoms of the cleaning mechanism and the material plate positioning mechanism 1 28 and 2 are both provided with a top plate mechanism, the top plate mechanism includes a top material part 9 arranged on both sides of the conveying mechanism, and the bottom of the top material part 9 is provided with a power part 10; the material plate positioning mechanism 1 28 and 2 both include a stacking groove 11 arranged on the upper part of the conveying mechanism, the lower part of the material plate positioning mechanism 1 28 is provided with a telescopic limiter 12, and the lower part of the material plate positioning mechanism 29 is provided with a telescopic limiter 2 13.

[0033] In the above scheme, the stacking grooves 11 of the sheet positioning mechanisms 28 and 2 are used for placing the sheets to be cleaned and stacking the cleaned sheets, so as to facilitate the centralized taking and placing of the sheets. The telescopic limiter 12 at the lower part of the sheet positioning mechanism 28 can be controlled by cooperating with the top material part 9. When working, the top material part 9 of the sheet positioning mechanism 28 rises and drives the telescopic limiter 12 to move so that the porous sheet 26 falls onto the top material part 9. The top material part 9 descends to place the porous sheet 26 on the conveying mechanism for circulation. During the process, the limiter is reset to prevent the upper porous sheet 26 from falling. The top material part 9 is arranged on both sides of the conveying mechanism to avoid interference. The power part 10 is used to control the lifting and lowering of the top material part 9. The conveying mechanism conveys the multiple sheets to the cleaning mechanism; the top material part 9 at the cleaning mechanism lifts the porous sheet 26 The drainage needle 7 is extended into the bottom of the hole groove on the porous material plate 26. Each hole groove on the porous material plate 26 corresponds to a group of injection needles 6 and drainage needles 7. Under the action of the pressure pump 8 of the liquid supply part 4, the cleaning liquid is pressed along the internal channel of the liquid supply part 4 to the injection needle 6 for discharge to clean the hole groove. After cleaning, the pressure pump 8 of the drainage part 5 works to discharge the waste liquid in the hole groove. Then the top material part 9 at this place descends, so that the porous material plate 26 flows to the material plate positioning mechanism 29 with the conveying mechanism. The telescopic limit member 213 at the material plate positioning mechanism 29 cooperates with the porous material plate 26 to control. When the porous material plate 26 rises, the telescopic limit member 213 is actuated, and the porous material plate 26 is reset after passing through. The placed material plate descends, and the top material part 9 is reset to complete the cleaning and stacking of the porous material plate 26.

[0034] When the top material part 9 rises and drives the telescopic limiter 12 to move and make the porous material plate 26 fall onto the top material part 9, the height between the top material part 9 and the telescopic limiter 12 should be adjusted so that only one porous material plate 26 passes through at a time. The porous material plate 26 has a structure with a wide bottom and a narrow top. During the descent of the porous material plate 26, the telescopic limiter 12 elastically resets to block the porous material plate 26 on the upper side.

[0035] The liquid supply part 4 and the liquid discharge part 5 comprise a cubic shell. The liquid supply part 4 is used to connect with the cleaning liquid, and the liquid discharge part 5 is used to discharge the waste liquid. Four support seats 27 are provided at the bottom of the liquid discharge part 5 to ensure positioning. The cubic shells of the liquid supply part 4 and the liquid discharge part 5 are respectively provided with a liquid supply distribution channel and a liquid discharge distribution channel, which are used to connect the liquid discharge pipe 15 with each liquid discharge needle 7 and connect the liquid supply pipe 14 with each liquid supply needle, so as to disperse the cleaning liquid and concentrate the waste liquid. The connection structure of the shrinking limit part 2 13 is the same as that of the shrinking limit part 12, see Figure 3 .

[0036] Furthermore, the liquid supply part 4 is arranged at the top of the liquid discharge part 5 , the injection needle 6 is arranged to penetrate the liquid discharge part 5 , and the bottom height of the injection needle 6 is higher than the bottom height of the liquid discharge needle 7 .

[0037] By stacking the liquid supply part 4 and the liquid discharge part 5 up and down, it is convenient to arrange the injection needle 6 and the liquid discharge needle 7 accordingly. The bottom end of the liquid discharge needle 7 is relatively low, which is convenient for absorbing all the waste liquid in the hole groove of the porous material plate 26.

[0038] After the porous material plate 26 is raised, the bottom end of the injection needle 6 should be at a height that is guaranteed to be located within the hole groove, thereby ensuring the cleaning effect of the washing liquid on the hole groove.

[0039] Furthermore, the liquid supply part 4 is connected to a liquid supply pipeline 14 , and the liquid discharge part 5 is connected to a liquid discharge pipeline 15 . The pressure pump 8 is provided on each of the liquid supply pipeline 14 and the liquid discharge pipeline 15 .

[0040] The liquid supply pipe 14 is connected to the washing liquid, and under the action of the pressure pump 8, the washing liquid is transported to the injection needle 6, and the liquid discharge pipe 15 sucks and discharges the waste liquid under the action of the pressure pump 8.

[0041] The liquid discharge pipe 15 is connected to a waste liquid barrel to collect the waste liquid.

[0042] Furthermore, a plurality of guide holes 16 are correspondingly opened on the liquid supply part 4 and the liquid discharge part 5 , and weights 17 are slidably arranged in the guide holes 16 , and a splash-proof cover plate 18 is connected to the bottom end of the weights 17 .

[0043] The weight 17 is guided by the guide hole 16 so that the weight 17 can be raised and lowered. The splash-proof cover 18 at the bottom of the weight 17 is used to cover the mouth of the hole groove when the porous material plate 26 is raised to prevent the washing liquid in the hole groove from splashing out during the washing process and affecting the adjacent hole grooves. A plurality of needle holes are opened on the splash-proof cover 18 for the injection needle 6 and the drainage needle 7 to pass through.

[0044] Further, the first and second material plate positioning mechanisms 28 each include two U-shaped guiding members 19 arranged oppositely. A stacking groove 11 is formed between the two U-shaped guiding members 19, and a first telescopic limiting member 12 or a second telescopic limiting member 13 is provided on the U-shaped guiding member 19.

[0045] The stacking groove 11 is formed by the two U-shaped guiding members 19, which facilitates the positioning and stacking of the porous material plate 26 for automatic loading and unloading. The first telescopic limiting member 12 or the second telescopic limiting member 13 is arranged on the U-shaped guiding member 19 to cooperate with the material pushing part 9 or the porous material plate 26.

[0046] A support block 25 is arranged at the bottom of the U-shaped guiding member 19. A guiding groove is formed on the support block 25, and a return spring 22 is arranged in the guiding groove. The guiding groove is used for slidably connecting the first telescopic limiting member 12 and the second telescopic limiting member 13. Limiting protrusions 24 are arranged on the first telescopic limiting member 12 and the second telescopic limiting member 13 for cooperating with the U-shaped guiding member 19 to control the extended length.

[0047] Further, the first telescopic limiting member 12 includes a first inclined pressure-receiving surface 20 for cooperating with the corresponding material pushing part 9. The bottom of the second telescopic limiting member 13 includes a second inclined pressure-receiving surface 21 for cooperating with the porous material plate 26. Both the first telescopic limiting member 12 and the second telescopic limiting member 13 are connected with a return spring 22.

[0048] During the rising process of the material pushing part 9 on the side to be cleaned, it contacts the first inclined pressure-receiving surface 20 to retract the first telescopic limiting member 12, and the upper porous material plate 26 can then fall onto the material pushing part 9. After the material pushing part 9 descends, the return spring 22 makes the first telescopic limiting member 12 reset; during the rising process of the porous material plate 26 on the cleaned side, it contacts the second inclined pressure-receiving surface 21 to retract the second telescopic limiting member 13. After the porous material plate 26 passes through, the return spring 22 makes the second telescopic limiting member 13 reset, and the material pushing part 9 at this position does not contact the second telescopic limiting member 13 to avoid interference.

[0049] Further, the cleaning mechanism, the conveying mechanism, the first material plate positioning mechanism 28 and the second material plate positioning mechanism 29 are arranged on the workbench 23, and guiding baffles 3 are arranged on the workbench 23 on both sides of the conveying mechanism.

[0050] The workbench 23 is used for positioning and supporting the cleaning mechanism, the conveying mechanism, the first material plate positioning mechanism 28 and the second material plate positioning mechanism 29. The guiding baffles 3 are arranged on the workbench 23 to guide and limit both sides of the porous material plate 26 to ensure the positioning of the porous material plate 26.

[0051] Further, the conveying mechanism includes a conveyor belt 2, and a plurality of positioning blocks 1 are equidistantly arranged on the surface of the conveyor belt 2.

[0052] The positioning block 1 on the conveyor belt 2 is used to position the porous material plate 26 in the moving direction to prevent the material plate from deflecting and facilitate the movement of the porous material plate 26. The conveyor belt 2 is a belt conveyor.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-well plate washer, characterized in that: It includes a cleaning mechanism, a conveying mechanism, a first pallet positioning mechanism and a second pallet positioning mechanism. The cleaning mechanism comprises a liquid supply part and a liquid discharge part. A plurality of injection needles are arranged at the bottom of the liquid supply part, and a plurality of liquid discharge needles corresponding to the injection needles one by one are arranged at the bottom of the liquid discharge part. A pressure pump is connected to the liquid supply part and the liquid discharge part respectively. A top plate mechanism is provided at the bottom of the cleaning mechanism, the first pallet positioning mechanism and the second pallet positioning mechanism. The top plate mechanism comprises a material pushing part arranged on both sides of the conveying mechanism, and a power part is arranged at the bottom of the material pushing part. The first pallet positioning mechanism and the second pallet positioning mechanism both comprise stacking grooves arranged on the upper part of the conveying mechanism. A first telescopic limiting part is arranged at the lower part of the first pallet positioning mechanism, and a second telescopic limiting part is arranged at the lower part of the second pallet positioning mechanism.

2. The multi-well plate washer according to claim 1, characterized in that: The liquid supply part is arranged at the top of the liquid discharge part. The injection needles penetrate through the liquid discharge part, and the bottom height of the injection needles is higher than the bottom height of the liquid discharge needles.

3. The multi-well plate washer according to claim 2, characterized in that: The liquid supply part is connected with a liquid supply pipeline, and the liquid discharge part is connected with a liquid discharge pipeline. The pressure pumps are respectively arranged on the liquid supply pipeline and the liquid discharge pipeline.

4. The multi-well plate washer according to claim 2, characterized in that: A number of guiding holes are correspondingly arranged on the liquid supply part and the liquid discharge part. Weights are slidably arranged in the guiding holes, and a splash-proof cover plate is connected to the bottom end of the weights.

5. The multi-well plate washer according to claim 1, characterized in that: The first pallet positioning mechanism and the second pallet positioning mechanism respectively comprise two C-shaped guiding parts arranged oppositely. A stacking groove is formed between the two C-shaped guiding parts, and a first telescopic limiting part or a second telescopic limiting part is arranged on the C-shaped guiding parts.

6. The multi-well plate washer according to claim 5, characterized in that: The first telescopic limiting part comprises a first inclined pressure-receiving surface for cooperating with the corresponding material pushing part. The bottom of the second telescopic limiting part comprises a second inclined pressure-receiving surface for cooperating with the porous pallet. Both the first telescopic limiting part and the second telescopic limiting part are connected with return springs.

7. The multi-well plate washer according to claim 1, characterized in that: The cleaning mechanism, the conveying mechanism, the first pallet positioning mechanism and the second pallet positioning mechanism are arranged on a workbench, and guiding baffles are arranged on both sides of the conveying mechanism on the workbench.

8. The multi-well plate washer according to claim 1, characterized in that: The conveying mechanism comprises a conveyor belt, and a number of positioning blocks are equidistantly arranged on the surface of the conveyor belt.

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