Cleaning head for plate washing machine

Abstract

The invention discloses a cleaning head for a plate washing machine, and belongs to the field of experimental equipment, the cleaning head comprises a cleaning head body, the cleaning head body is provided with a flow channel A and a flow channel B which are mutually independent, one of the flow channel A and the flow channel B is used for liquid feeding, and the other one is used for liquid discharging; a plurality of open holes communicated with the flow channel B are formed in the hair washing body, and pipes B are mounted in the open holes; a plurality of inserting holes used for communicating the flow channel A with the flow channel B are formed in the head washing body, a pipe A is inserted into each inserting hole in a sealed mode, and each pipe A extends into the corresponding pipe B. The pipe A and the pipe B are arranged in a sleeving mode, so that the diameter of the pipe B located on the outer side can be larger, machining and manufacturing are easy, and the pipe A with the small diameter is protected in the pipe B and cannot be broken off. And the situation that the pore plate is scratched during cleaning can be prevented only by changing the material of the pipe B. And the situation of liquid splashing in the liquid discharging process can be avoided, and eddy current possibly generated is prevented.

Description

Technical Field

[0001] The invention relates to the field of experimental equipment, in particular to a cleaning head for a plate washer. Background Art

[0002] The microplate is an important component of the ELISA instrument. It is mainly used for chemical tests and detections such as sample addition, dilution, incubation and enzyme immunoassay reaction. After use, the microplate needs to be cleaned. The microplate washer is a device used to clean the microplate.

[0003] A plate washer is generally composed of a cleaning liquid bottle, a peristaltic pump, a vacuum pump and a cleaning head, wherein the cleaning head is provided with an injection tube and a pipette. The cleaning liquid is first drawn out from the cleaning liquid storage tank by a peristaltic pump or other flushing equipment, and then discharged into the micropores of the ELISA plate through the injection tube on the cleaning head, thereby cleaning the micropores. After cleaning, the waste liquid in the micropores is sucked into the pipette through the adsorption action of a vacuum pump or other suction equipment, and then discharged into the waste liquid bottle.

[0004] The injection tube and the suction tube are arranged in pairs. In the cleaning head of the prior art, the injection tube and the suction tube are usually arranged adjacent to each other to facilitate flushing and suction operations on the same micropore, such as the technical solutions disclosed in invention patents with publication numbers CN210230802U, CN208894701U, and CN213793157U. However, this will lead to limited diameter sizes of the injection tube and the suction tube, which is not only difficult to process, but also has the risk of low structural strength and easy breakage of thin tubular components. Summary of the invention

[0005] In view of the problem in the prior art that the injection tube and the suction tube on the cleaning head are limited in diameter and thus difficult to manufacture and easy to break, the object of the present invention is to provide a cleaning head for a plate washer so as to at least partially solve the above problem.

[0006] To achieve the above object, the technical solution of the present invention is:

[0007] A cleaning head for a plate washer comprises a cleaning head body, wherein the cleaning head body is provided with a flow channel A and a flow channel B which are independent of each other, wherein one of the flow channel A and the flow channel B is used for liquid intake and the other is used for liquid discharge; the cleaning head body is provided with a plurality of openings which are all connected with the flow channel B, wherein tubes B are installed in the openings; the inside of the cleaning head body is provided with a plurality of plug holes which are used for connecting the flow channel A with the flow channel B, wherein tubes A are sealedly inserted in each of the plug holes, and each of the tubes A extends into each of the tubes B respectively.

[0008] In some preferred embodiments, a support member is provided between the outer wall of the tube A and the inner wall of the tube B, and the support member has a through hole for liquid to pass through.

[0009] In some preferred embodiments, the support member is integrally formed on the inner wall of the tube B, and a support hole adapted to the tube A is provided on the support member.

[0010] In some preferred embodiments, the number of the tubes A is the same as the number of the tubes B, and each tube A is coaxially arranged in the tube B.

[0011] In some preferred embodiments, the end of tube A is lower than the end of tube B.

[0012] In some preferred embodiments, the tube A is connected to the insertion hole by a threaded connection or an interference connection, and the tube B is connected to the opening by a threaded connection or an interference connection.

[0013] In some preferred embodiments, the outer walls of the tube A and the tube B are both provided with limiting steps.

[0014] In some preferred embodiments, a plurality of the tubes B are arranged in a row along the length direction of the flow channel B at intervals.

[0015] In some preferred embodiments, the tube A and the tube B are arranged coaxially.

[0016] In some preferred embodiments, the tube B is made of plastic.

[0017] By adopting the above technical solution, the beneficial effect of the present invention is that: the present invention can make the diameter of the outer tube B larger by mutually sleeved the tube A and the tube B, so that it is easy to process and manufacture, and the tube A with a smaller diameter is protected inside the tube B, so there is no risk of breaking. In addition, it is only necessary to change the material of the tube B to prevent scratches when cleaning the orifice plate. By mutually sleeved the tube A and the tube B, it is also possible to avoid liquid splashing during discharge and prevent possible eddy currents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a top view of the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the present invention in another direction.

[0021] Figure 4 For along Figure 2 Section view along line AA.

[0022] Figure 5 for Figure 3 A partial enlarged view of point B in the middle.

[0023] In the figure: 1-washing head body, 2-flow channel A, 3-flow channel B, 4-tube B, 5-tube A, 6-support member, 7-through hole. DETAILED DESCRIPTION

[0024] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] It should be noted that, in the description of the present invention, the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are descriptions of the structure of the present invention based on the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] The "first" and "second" in this technical solution are only used to distinguish the names of the same or similar structures, or corresponding structures with similar functions, and are not an arrangement of the importance of these structures, nor do they have a ranking, comparison of size, or other meanings.

[0027] In addition, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the two structures. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the overall idea of ​​the present invention and the specific context of the present solution.

[0028] Example 1

[0029] A cleaning head for a plate washer, such as Figure 1-3 As shown, the shampoo body 1 includes a shampoo body 1, in which a flow channel A2 and a flow channel B3 independent of each other are opened, and the flow channel A2 and the flow channel B3 are parallel to each other and are both straight.

[0030] The flow channel A2 and the flow channel B3 each have an opening formed on the shampoo body 1, and the opening is used to connect the pipe joint. Of course, the flow channel A2 and the flow channel B3 can also each have two openings formed on the shampoo body 1, and the extra opening can be closed by a plug when in use, and the two openings can be used in conjunction with each other.

[0031] A side surface of the shampoo body 1 close to the flow channel B3 (i.e., the lower side surface in the figure) is provided with a number of openings connected to the flow channel B3, for example, 12 holes, which are suitable for a 96-well plate with an 8×12 arrangement. For other types of well plates, the number of openings can be changed according to actual conditions during product manufacturing. These openings are arranged in a row along the length direction of the flow channel B3, and usually these openings are also perpendicular to the flow channel B3. A tube B4 is installed in each opening, for example, by a threaded connection, and the outer wall of the tube B4 is provided with a limiting step for limiting the screwing depth of the thread to prevent the tube B4 from excessively extending into the opening. Of course, in other embodiments, the tube B4 can also be installed in the opening on the shampoo body 1 in an interference fit manner.

[0032] The shampoo body 1 is provided with a plurality of jacks for connecting the flow channel A2 and the flow channel B3, for example, 12 jacks, which are arranged at intervals along the length direction of the flow channel A2, with the same arrangement spacing as the tube B4, and each jack is aligned with each tube B4. A tube A5 is sealedly inserted in each jack, for example, by a threaded connection, and the outer wall of the tube A5 is also provided with a limiting step for limiting the screwing depth of the thread to prevent the tube A5 from excessively extending into the jack. Of course, in other embodiments, the tube A5 can also be installed in the jack in the shampoo body 1 in an interference fit manner.

[0033] The diameter of the tube A5 is smaller than that of the tube B4, so that the tube A5 can be inserted into the tube B4 and a gap can be formed between the tube A5 and the tube B4. Usually, each tube A5 is coaxially arranged with each tube B4.

[0034] In this embodiment, flow channel A2 is used for liquid inlet, so that flow channel A2 can inlet liquid through its opening; flow channel B3 is used for liquid discharge, so that flow channel B3 can discharge liquid through its opening. Tube B4 is used for liquid discharge and is called a liquid suction tube; tube A5 is used for liquid inlet and is called a flushing tube. In other embodiments, flow channel A2 can also be used for liquid discharge and flow channel B3 can be used for liquid inlet.

[0035] The end of tube A5 is lower than the end of tube B4, which means that the end of tube A5 is located inside tube B4, and there is a certain size difference between the ends of the two tubes. Usually, tube B4 is made of non-rigid materials such as plastic, or at least the end of tube B4 is configured as a non-rigid material. In this case, materials such as rubber or silicone can also be used, so that tube B4 can be prevented from scratching the orifice plate being washed. In addition, when discharging liquid, it can also effectively prevent liquid splashing and possible vortexes.

[0036] The working process of a cleaning head for a plate washer provided by an embodiment of the present invention is as follows:

[0037] Before use, connect the opening formed by flow channel A2 on the washing head body 1 to the flushing tube, and connect the opening formed by flow channel B3 on the washing head body 1 to the suction tube; when working, close the valve on the suction tube or the device for suction, open the valve on the flushing tube or the flushing device, and the flushing liquid is provided to each tube A5 (i.e., the flushing tube) through flow channel A2, and the 8 rows and 12 holes on the 96-well plate are flushed in turn; after the flushing is completed, close the valve on the flushing tube or the flushing device, open the valve on the suction tube or the device for suction, and suction the 8 rows and 12 holes on the 96-well plate through the 12 tubes B4 in turn. After the suction is completed, close the valve on the suction tube or the device for suction.

[0038] Compared with the prior art, the embodiment of the present invention makes the diameter of the outer tube B4 larger by mutually sleeved the tube A5 and the tube B4, so that it is easy to process and manufacture, and the relatively small diameter tube A5 is protected inside the tube B4, so there is no risk of breaking. In addition, it is only necessary to change the material of the tube B4 to prevent scratches when cleaning the orifice plate. By mutually sleeved the tube A5 and the tube B4, it is also possible to avoid liquid splashing during discharge and prevent possible eddy currents.

[0039] Example 2

[0040] In this embodiment, Figure 4-5 As shown, a support member 6 is provided between the outer wall of the tube A5 and the inner wall of the tube B4, so that the stability of the tube B4 can be enhanced by the support member 6 to prevent the tube B4 with a smaller diameter from shaking during use.

[0041] In addition, the support member 6 is provided with a through hole 7 for liquid to pass through, and the through hole 7 is used to absorb the waste liquid in the orifice plate during suction.

[0042] Usually, the support member 6 is integrally formed on the inner wall of the tube B4, and a support hole matching the tube A5 is provided on the support member 6. In this way, the waste liquid can only pass through the through hole 7, which helps to reduce the occurrence of dripping during the suction process.

[0043] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A cleaning head for a plate washer, characterized in that: The utility model comprises a shampoo body, wherein the shampoo body is provided with a flow channel A and a flow channel B which are independent of each other, wherein one of the flow channel A and the flow channel B is used for liquid intake and the other is used for liquid discharge; the shampoo body is provided with a plurality of openings which are all connected with the flow channel B, and tubes B are installed in the openings; the inside of the shampoo body is provided with a plurality of plug holes which are used for connecting the flow channel A with the flow channel B, and tubes A are sealedly inserted in each of the plug holes, and each of the tubes A extends into each of the tubes B respectively.

2. The cleaning head for a plate washer according to claim 1, characterized in that: A support member is provided between the outer wall of the tube A and the inner wall of the tube B, and the support member has a through hole for liquid to pass through.

3. The cleaning head for a plate washer according to claim 2, characterized in that: The support member is integrally formed on the inner wall of the tube B, and a support hole matching the tube A is provided on the support member.

4. The cleaning head for a plate washer according to claim 1, characterized in that: The number of the tubes A is the same as the number of the tubes B, and each tube A is coaxially arranged in the tube B.

5. The cleaning head for a plate washer according to claim 1, characterized in that: The end of the tube A is lower than the end of the tube B.

6. The cleaning head for a plate washer according to claim 1, characterized in that: The tube A is connected to the insertion hole by thread or interference fit, and the tube B is connected to the opening by thread or interference fit.

7. The cleaning head for a plate washer according to claim 6, characterized in that: The outer walls of the tube A and the tube B are both provided with limiting steps.

8. The cleaning head for a plate washer according to claim 1, characterized in that: A plurality of the tubes B are arranged in a row along the length direction of the flow channel B at intervals.

9. The cleaning head for a plate washer according to claim 8, characterized in that: The tube A and the tube B are arranged coaxially.

10. The cleaning head for a plate washer according to claim 5, characterized in that: The material of the tube B is plastic.

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