GB2561135A

GB2561135A - Multi-position single-way valve for medical device cleaning equipment

Info

Publication number: GB2561135A
Application number: GB1811356.3A
Authority: GB
Inventors: Liu Jun; Zhang Jing; Zhang Chong; Zhang Fan; Wang Pengcheng; Zen Fanghua
Original assignee: Laoken Medical Technology Co Ltd
Current assignee: Laoken Medical Technology Co Ltd
Priority date: 2016-01-12
Filing date: 2016-04-16
Publication date: 2018-10-03
Anticipated expiration: 2036-04-16
Also published as: GB2561135B; CN105508235B; CN105508235A; GB201811356D0; WO2017121048A1; DE112016006207T5

Abstract

A multi-position single-way valve for medical device cleaning equipment comprises a valve body mount (1) fixed to a cleaner and a valve body assembly (2) provided on the valve body mount (1). The valve body mount (1) is provided with a motor (3), a photoelectric indexer (6), a liquid flow transfer assembly (4) and a valve body assembly (2) in sequence. The liquid flow transfer assembly (4) communicates with a liquid suction pump. The valve body assembly (2) comprises a valve housing (21) provided on the valve body mount (1) and a valve core (22) provided on a driving shaft (52). The valve housing (21) is provided with at least three diversion holes (211) corresponding to the position of water inlets (43). The valve core (22) comprises a mounting plate (221) fixed to the driving shaft (52), pin shafts (222) provided on the mounting plate (221), and movable rollers (223) provided on the pin shafts (222). The outer edge of the movable roller (223) is matched and linked with the cavity of the valve housing (21). The multi-position single-way valve for medical device cleaning equipment can ensure a stable pressure inside the lumen, with good cleaning effect and high degree of automation.

Description

(56) Documents Cited:

CN 204602715 U EP 1920797 A1 CN 205370954 U DE 1750119A1 CN 2082343 U CN 103272810 A (58) Field of Search:

INT CLA61M, B08B, F16K Other: EPODOC, WPI, CNPAT, CNKI (71) Applicant(s):

Laoken Medical Technology Co. Ltd 211 Gangtong North 3rd Road,

North Modern Industrial Area, Pixian, Chengdu 611730, Sichuan, China (72) Inventor(s):

Jun Liu Jing Zhang Chong Zhang Fan Zhang Pengcheng Wang Fanghua Zen (74) Agent and/or Address for Service:

Jinping Gong

Eggenfeldenerstr. 56, Munich, 81929, Germany (54) Title of the Invention: Multi-position single-way valve for medical device cleaning equipment Abstract Title: Multi-position single-way valve for medical device cleaning equipment (57) A multi-position single-way valve for medical device cleaning equipment comprises a valve body mount (1) fixed to a cleaner and a valve body assembly (2) provided on the valve body mount (1). The valve body mount (1) is provided with a motor (3), a photoelectric indexer (6), a liquid flow transfer assembly (4) and a valve body assembly (2) in sequence. The liquid flow transfer assembly (4) communicates with a liquid suction pump. The valve body assembly (2) comprises a valve housing (21) provided on the valve body mount (1) and a valve core (22) provided on a driving shaft (52). The valve housing (21) is provided with at least three diversion holes (211) corresponding to the position of water inlets (43). The valve core (22) comprises a mounting plate (221) fixed to the driving shaft (52), pin shafts (222) provided on the mounting plate (221), and movable rollers (223) provided on the pin shafts (222). The outer edge of the movable roller (223) is matched and linked with the cavity of the valve housing (21). The multi-position single-way valve for medical device cleaning equipment can ensure a stable pressure inside the lumen, with good cleaning effect and high degree of automation.

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Description

MULTI-POSITION ONE-WAY VALVE FOR MEDICAL INSTRUMENT CLEANING

DEVICE

Technical field

The present invention relates to an assembly of a medical instrument cleaning device, and more particularly to a multi-position one-way valve for the medical instrument cleaning device.

Background technique

An ultrasonic cleaning machine is a medical equipment cleaning device currently widely used, especially in the occasion of a pipe cavity type medical equipment cleaning instrument, the ultrasonic cleaning machines is very commonly used. Since the pipe cavity type medical instrument usually has the features of a smaller pipe diameter and a longer pipe body, medical staff generally place the pipe cavity type medical instrument in a cleaning basket or a cleaning tank for ultrasonic cleaning. However, the ultrasonic cleaning machine for the pipe cavity type medical instrument in the prior art has two major drawbacks. First, because the medical instruments are stacked on each other during a cleaning process, ultrasonic radiation is constantly absorbed by the wall of the medical instrument during propagation. As the distance from an ultrasonic transducer gradually increases, the oscillating frequency of the ultrasonic wave gradually weakens, resulting in a decrease in the cleaning effect of the pipe cavity type medical instrument. Second, the adhesion of dirt attached to the pipe cavity type medical instrument varies, especially in the pipe cavity, due to the effects of surface tension and dirt’s own gravity, the adhesion of dirt to the inner wall of the pipe cavity is greatly increased, it is difficult to ensure that the dirt in the pipe cavity can be completely removed under the effect of ultrasonic vibration when the pipe cavity medical instrument is placed intensively, especially for a plurality of the medical instrument’s pipe cavities with larger adhesive force that need to be sucked and cleaned, it is difficult to meet the requirement of completely cleaning the dirt in the pipe cavity when intensive cleaning is performed. In fact, as the ultrasonic oscillations are continuously absorbed during propagation, the amplitude of the ultrasonic wave reaching the pipe cavity is greatly reduced, and the cleaning ability is also greatly reduced.

In view of the defects of centralized placement and cleaning, those skilled in the art are also constantly improving the ultrasonic cleaning device of the pipe cavity type medical instrument and developing perfusion cleaning technology in the pipe cavity, for example, a Chinese patent No. ZL 201520315754,6 discloses a laparoscopic ultrasonic cleaning machine, the present invention utilizes a perfusion pump arranged in a box body and a perfusion joint connected to a laparoscope that are matched and used, to pump a cleaning liquid in a tank body to the pipe cavity of the laparoscope to clean the inside of the pipe cavity. However, in the above-mentioned perfusion mechanism in which the perfusion pump and the perfusion joint are combined, the perfusion pump is simultaneously connected to a plurality of the perfusion joints. When the perfusion pump supplies liquid, the perfusion pump is affected by the diversion effect of a plurality of the perfusion joints, which greatly reduces the output pressure of the perfusion joint. In addition, the perfusion pump only acts as a transport booster for the cleaning liquid. During the transmission of the cleaning liquid inside the pipe cavity, the liquid pressure thereof is continuously absorbed by the dirt in the pipe cavity and decreased, resulting in the progressive weakening of the pushing effect of the cleaning liquid in the pipe cavity, thereby greatly reducing the cleaning effect of the end of the pipe cavity. Therefore, the laparoscopic ultrasonic cleaning machine described above still fails to thoroughly clean the dirt inside the pipe cavity.

Summary of the Present Invention

The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and provide a multi-position one-way valve for a medical instrument cleaning device which can ensure stable pressure in a pipe cavity, good cleaning effect and high degree of automation, and is suitable for ultrasonic cleaning machines and other cleaning devices for a cleaning pipe cavity type medical instrument.

The purpose of the present invention is realized as follows: a multi-position one-way valve for a medical instrument cleaning device comprises a valve body mounting seat fixed on the cleaning machine and a valve body assembly provided on the valve body mounting seat, and the structure features thereof are that: the valve body mounting seat is sequentially provided thereon with a motor, a photoelectric graduator, a liquid flow transfer assembly and a valve body assembly, and the liquid flow transfer assembly is communicated with a liquid suction pump.

Further, a rotating shaft of the motor is provided with a transmission assembly, and the photoelectric graduator and the valve body assembly are arranged on the transmission assembly.

Furthermore, the transmission assembly comprises a coupling arranged on the rotating shaft of the motor, a transmission shaft arranged on the coupling and passing through and connected on the photoelectric graduator, and the transmission shaft is fixed on the valve body assembly.

Furthermore, the photoelectric graduator comprises a photoelectric induction pipe arranged on the valve body mounting seat and a grating disk arranged on the transmission shaft, the grating disk corresponds to the position of the photoelectric induction pipe, and the photoelectric induction pipe is electrically connected to the motor.

Optimized according to the above structure, the transmission shaft is provided with a positioner connected to the grating disk.

Optimized according to the above structure, a fixed plate is provided between the valve body mounting seat and the photoelectric induction pipe.

Optimized according to the above structure, a circuit board protection shell is arranged on the photoelectric graduator.

Furthermore, a liquid flow transfer assembly comprises a liquid flow transfer plate arranged on the valve body mounting seat, the liquid flow transfer plate is provided with a water outlet connected to the liquid suction pump and at least three water inlets communicated with the water outlet.

Optimized according to the above structure, the liquid flow transfer plate is with twelve water inlets.

Optimized according to the above structure, the liquid flow transfer plate is with a through hole through which the transmission shaft passes.

provided thereon provided thereon

Optimized according to the above structure, the liquid flow transfer plate is provided thereon with a sealed pressed plate.

Still further, the valve body assembly comprises a valve housing arranged on the valve body mounting seat and a valve plug arranged on the transmission shaft.

Optimized according to the above structure, the valve housing is provided thereon with at least three flow guiding holes corresponding to the position of the water inlet.

Optimized according to the above structure, twelve flow guiding holes are provided on the valve housing.

Optimized according to the above structure, the valve plug comprises a mounting plate fixed on the transmission shaft, a pin shaft arranged on the mounting plate and a movable roller arranged on the pin shaft, the outer edge of the movable roller is matched with and connected to an inner cavity of the valve housing.

Optimized according to the above structure, the two sides of the mounting plate are provided with a sealed plate, and the movable roller is arranged between the mounting plate and the sealed plate, the sealed plate and the mounting plate are both provided thereon with a groove of which the position corresponds to the positions thereof and through which a liquid guiding pipe can be passed.

Optimized according to the above structure, the outside of the valve housing is provided with a cover plate, the cover plate is provided with a liquid guide hole corresponding to the position of a flow guide hole.

Optimized according to the above structure, the cover plate is provided thereon with a positioning hole which the transmission shaft can pass through and is connected to, and the positioning hole is provided with a pointer that can be rotated with the transmission shaft.

Optimized according to the above structure, the inner side of the cover plate is provided with a shaft sleeve sleeved on the transmission shaft.

Optimized according to the above structure optimization, a valve body mounting reinforcing bar is provided between the valve housing and the valve body mounting seat.

The present invention improves the ultrasonic cleaning machine in the prior art and adds a multi-position one-way valve for the medical instrument cleaning device. The advantages thereof are as follows:

1. In the structure of the multi-position one-way valve for the medical instrument cleaning device of the present invention, the valve body mounting seat is sequentially provided thereon with the motor, the photoelectric graduator, the liquid flow transfer assembly, and the valve body assembly. Through the driving of the motor, the photoelectric graduator and the valve body assembly are rotated together, and the liquid flow transfer assembly communicated with the liquid suction pump is combined to realize the stepwise sequential liquid absorption of the control of photoelectric graduator. Besides the fact that the structure of the above-mentioned one-way valve can greatly improve the stability of the ultrasonic cleaning of the interior of the pipe cavity and the cleaning effect thereof, the present invention still truly realizes the fully automatic control of the internal cleaning.

2. In the structure of the multi-position one-way valve for the medical instrument cleaning device of the present invention, a transmission assembly is arranged on a rotating shaft of the motor, and the photoelectric graduator and the valve body assembly are arranged on the transmission assembly, the transmission assembly can act as a conductor for the rotation of the photoelectric graduator and the valve body assembly according to the rotation of the rotating shaft of the motor. At the same time, the transmission assembly comprises a coupling arranged on the rotating shaft of the motor, a transmission shaft arranged on the coupling and passing through and connected on the photoelectric graduator, the transmission shaft is fixed on the valve body assembly, the structure can ensure the rotation stability and reliability of photoelectric graduator and the valve body assembly.

3. In the structure of the multi-position one-way valve for the medical instrument cleaning device of the present invention, the photoelectric graduator comprises a photoelectric induction pipe arranged on the valve body mounting seat and a grating plate arranged on the rotating shaft, the positions of the grating plate and the photoelectric induction pipe correspond to each other, and the photoelectric induction pipe is electrically connected to the motor. Through the cooperation and use of the grating disk and the photoelectric induction pipe, when the motor rotates, the power supply of the motor can be controlled to be turned on and off according to the on/off of the photoelectric induction pipe, the rotation of the transmission assembly is indexed and controlled, and the structure can truly realize that the transmission assembly drives the valve body assembly to synchronously rotate, thus enhancing the liquid absorption of the liquid suction pump and improving the ultrasonic cleaning effect.

4. In the structure of the multi-position one-way valve for the medical instrument cleaning device of the present invention, the liquid flow transfer assembly comprises a liquid flow transfer plate arranged on the valve body mounting seat, the liquid flow transfer plate is provided thereon with a water outlet connected on the liquid suction pump and at least three water inlets connected to the water outlet. With the cooperation and use of the photoelectric graduator and the valve body assembly, the transmission shaft is rotated in a stepping manner, so that the water inlet on the liquid flow transfer plate can also be opened and closed step by step, to realize the effects that a single pipeline is communicated and the remaining pipes are closed. Therefore, the suction force generated by the liquid suction pump can avoid the influence of a shunting action, and completely acts on the communicated pipeline, thereby fundamentally ensuring the stability of the pressure of the cleaning liquid inside the pipe cavity. In addition, since the suction function of the liquid suction pump is utilized at the water outlet, as the cleaning liquid penetrates into the pipe cavity, the suction force thereof is gradually increased, and the suction pressure thereof is not affected by the absorption of the dirt on the inner wall of the pipe cavity, thereby improving the stability of the pressure of the cleaning liquid in the pipe cavity and effectively improving the effect of the ultrasonic cleaning.

5. In the structure of the multi-position one-way valve for the medical instrument cleaning device of the present invention, the valve body assembly comprises the valve housing arranged on the valve body mounting seat and the valve plug arranged on the transmission shaft, the valve plug comprises the mounting plate fixed on the transmission shaft, the pin shaft provided on the mounting plate and the movable roller arranged on the pin shaft, the outer edge of the movable roller is matched with and connected to the inner cavity of the valve housing. In addition, the mounting plate is provided thereon with a groove through which one liquid guiding pipe passed. During the rotation of the mounting plate with the transmission shaft, the sealing action of the mating connection between the movable roller and the valve housing and the communication action of the groove to the guide pipe make the movable roller and the mounting plate close and open the pipelines on the water inlet one by one when the transmission shaft is rotated, respectively. When the sealing section of the movable roller and the mounting plate rotates to the liquid guiding pipe, the movable roller and the mounting plate close the liquid guiding pipe; when the gap of the moving roller and the groove rotate to the liquid guiding pipe, the moving roller and the groove act as the communication action. Through the above-mentioned rotation and communication mechanisms, a separate passage of the water outlet and the water inlet is realized, so as to avoid the problem that the liquid pressure in the pipe cavity is greatly lost due to the multi-tubing communication during the operation of the liquid suction pump. In addition, since the other liquid guiding pipes are in a sealed state when one liquid guiding pipe is communicated to the water outlet, the pressure of the liquid in the ultrasonic cleaning machine is increased, and the pressure of the liquid in the water inlet is further increased, thereby realizing that the cleaning liquid in the pipe cavity flows quickly, improving the cleaning effect.

Brief Description of the drawings

FIG. lisa schematic structural view of a preferred embodiment of the present invention;

is a schematic structural view of another embodiment of the present invention;

FIG. 3 is a schematic view of an internal structure of another embodiment of the present invention; FIG.

FIG. 4 is a schematic view of the connection of a valve plug, a grating disk and a transmission assembly of the present invention;

FIG. 5 is a schematic structural view of a mounting plate according to the present invention;

FIG. 6 is a schematic structural view of a valve housing according to the present invention;

FIG. 7 is a schematic structural view of a cover plate according to the present invention;

FIG. 8 is a schematic structural view of a liquid flow transfer plate of the present invention; FIG.

FIG. 9 is a schematic view of the internal structure of a liquid flow transfer plate according to the present invention.

The reference signs in the drawings are marked as follows: Valve Body Mounting Seat 1, Valve Body Assembly 2, Motor 3, Liquid Flow Transfer Assembly 4, Transmission Assembly 5, Photoelectric Graduator 6, Coupling 51, Transmission Shaft 52, Photoelectric Induction Pipe 61, Grating Disk 62, Positioner 63, Fixed Plate 64, Circuit Board Protection Casing 65, Liquid Flow Transfer Plate 41, Water Outlet 42, Water Inlet 43, Through Hole 44, Sealed Pressed Plate 45, Valve Housing 21, Valve Plug 22, Flow Guiding Hole 211, Mounting Plate 221, Pin Shaft 222, Movable Roller 223, Sealed Plate 224, Groove 225, Cover Plate 23,Liquid Guiding Hole 231, Positioning Hole 232, Pointer 233, Shaft Sleeve 234, Valve Body Mounting Reinforcing Bar 24.

Detailed Description

The present invention will be further described below with reference to the accompanying drawings.

As shown in FIG. 1 to FIG. 9, a multi-position one-way valve for a medical instrument cleaning device of the present invention mainly comprises a valve body mounting seat 1 and a valve body assembly 2. Wherein, the valve body mounting seat 1 is fixed on the ultrasonic cleaning machine; and the valve body assembly 2 is provided on the valve body mounting seat 1. The valve body mounting seat 1 is sequentially provided thereon with a motor 3, a photoelectrical graduator 6, a liquid flow transfer assembly 4 and a valve body assembly 2, the liquid flow transfer assembly 4 is communicated with a liquid suction pump. The motor 3 drives the photoelectric graduator 6 and the valve body assembly 2 to rotate and the liquid flow transfer assembly 4 communicated with the liquid guiding pump is cooperated and used with the moth to achieve the stepwise sequential suction f the photoelectric indexing control of the cleaning liquid flowing through the pipe cavity type medical instrument. The rotating shaft of the motor 3 is provided thereon with a transmission assembly 5, and the photoelectric graduator 6 and the valve body assembly 2 are arranged on the transmission assembly 5. The transmission assembly 5 comprises a coupling 51 and a transmission shaft 52, the coupling 51 is arranged on the rotating shaft of the motor 3, the transmission shaft 52 is arranged on the coupling 51, and passes through and connected onto the photoelectric graduator 6. In addition, the transmission shaft 52 is fixed on the valve body assembly 2. The above connection mechanism can ensure that the motor 3 drives the transmission shaft 52 to rotate in real time through the coupling 51 and drives the photoelectric graduator 6 and the valve body assembly 2 to rotate, thus improving the stability and reliability of the operation of the valve body assembly 2 and the photoelectric graduator 6.

The photoelectric graduator 6 of the present invention mainly comprises a photo induction pipe 61 and a grating disk 62. The photoelectric induction pipe 61 is arranged on the valve body mounting seat 1; the grating disk 62 is arranged on the transmission shaft 52, and the positions of the grating disk 62 and the photoelectric induction pipe 61 corresponds to each other, the photoelectric induction pipe 61 is electrically connected to the motor 3. The photoelectric induction effect generated by the photo-electric induction pipe 61 when the grating disk 62 is rotated truly realizes that the power supply of the motor 3 can be controlled to be on/off according to the rotation angle of the grating disk 62, thereby ensuring the stability of the stepwise sequential suction. In order to make the connection between the grating disk 62 and the transmission shaft 52 more stable, the transmission shaft 52 is provided thereon with a positioner 63 connected to the grating disk 62. A fixed plate 64 is arranged between the valve body mounting seat 1 and the photoelectric induction pipe 61, the fixed plate 64 fixes the photoelectric induction pipe 61 on the valve body mounting seat 1, thus ensuring that the positions of the photoelectric induction pipe 61 and the grating disk 62 are in a corresponding state, and preventing the photoelectric induction pipe 61 from shifting due to vibration generated during operation of the ultrasonic cleaning machine. In addition, the photoelectric graduator 6 is provided thereon with a circuit board protection shell 65, the circuit board protection shell 65 can prevent the outer liquid from entering a control circuit of the photoelectric induction pipe 61 and act as a barrier to external interference.

The liquid flow transfer assembly 4 of the present invention mainly comprises a liquid flow transfer plate 41, a water inlet 43 and a water outlet 42. The liquid flow transfer plate 41 is arranged on the valve body mounting seat 1, and the water inlet 43 and the water outlet port 42 are both arranged on the liquid flow transfer plate 41, the water outlet 42 can be communicated with an external liquid suction pump. First, in order to make the liquid intake and the liquid discharge more smooth the water inlet 43 may be arranged in the axial direction of the transmission shaft 52, and the water outlet 42 may be arranged on the side of the liquid flow transfer plate 41. Second, the water outlet 42 is communicated with the liquid suction pump, and the suction force of the cleaning liquid is used to replace the conventional driving force, as the cleaning liquid penetrates into the pipe cavity, the suction force thereof gradually increases, and the suction pressure thereof is not affected by the absorption effect of dirt on the inner wall of the pipe cavity. The number of the water inlets 43 is at least three, by the control of the photoelectric graduator 6, only one of the water inlets 43 is always communicated with the water outlet 42, thereby avoiding a large drop in the pressure in the pipe cavity due to the diversion effect of the water inlet 43. In fact, twelve or twenty water inlets 43 may be provided on the flow transfer plate 41 in the present invention, as the number of the water inlets 43 increases, the number of one-time cleaning of the pipe cavity type medical instrument increases. In order to close and open the water inlet 43 in strict accordance with the stepping rotation of the photoelectric graduator 6, the water inlet 43 may be evenly distributed on the flow transfer plate 41. In addition, the liquid flow transfer plate 41 is provided thereon with a through hole 44 through which the transmission shaft 52 passes, the through hole 44 has the function of allowing the transmission shaft 52 to pass through the liquid flow transfer plate 41 and being connected to the valve body assembly 2, and the inner cavity of the liquid flow transfer plate 41 and the through hole 44 can be sealed therebetween by a sealed plate 45 arranged on the liquid flow transfer plate 41, this structure can effectively prevent the cleaning liquid from leaking onto the transmission shaft 52 during operation.

The valve body assembly 2 of the present invention mainly comprises a valve housing 21 and a valve plug 22, wherein the valve housing 21 is arranged on the valve body mounting seat 1, and the valve plug 22 is arranged on the transmission shaft 52. Corresponding to the liquid flow transfer plate 41, the valve housing 21 is also provided thereon with at least three flow guiding holes 211, the positions of the liquid guide hole 211 and the water inlet 43 correspond to each other. The flow guiding hole 211 not only has a positioning effect on the liquid guiding pipe provided with the cleaning liquid, but also ensures that the liquid guiding pipe is always in a one-to-one correspondence with the water inlet 43 during the rotation of the valve body assembly 2, avoiding the phenomena of the twists and knots of the pipeline due to the rotation of the valve body assembly 2. The number of the flow guiding holes 211 can also be set to be twelve or twenty, the flow guiding hole can likewise be evenly distributed over the surface of the valve housing 21 that corresponds to the liquid flow transfer plate 41. The valve plug 22 comprises a mounting plate 221, a pin shaft 222 and a movable roller 223, the mounting plate 221 is fixed on the transmission shaft 52, the pin shaft 222 is arranged on the mounting plate 221, the movable roller 223 is arranged on the pin shaft 222, and can be rotated around the pin shaft 222, the outer edge of the movable roller 223 is matched with and connected to the inner cavity of the valve housing 21. In the valve plug 22 of the present invention, the number of the movable rollers 223 may be set to be at least two, so that there is a gap between the movable rollers 223 that can pass through the liquid guiding pipe, so that the liquid guiding pipe is opened and closed in a stepping manner with the rotation of the movable roller 223. In addition, two sides of the mounting plate 221 are provided with a sealed plate 224, the movable roller 223 is arranged between the mounting plate 221 and the sealed plate 224, the sealed plate 224 and the mounting plate 221 are both provided with a groove 225, the positions of the grooves 22 corresponds to each other, and one liquid guiding pipe can pass through the groove. The function of the sealed plate 224 is to position both sides of the rotating shaft of the movable roller 223 to ensure that the moving roller 223 is always in a stable state during operation. The groove 225 ensures the smooth communication of the liquid guiding pipe when the movable roller 223 is rotated to ensure the stability of the suction pump for the suction of the cleaning liquid. In addition, the gap position of the movable roller 223 may correspond to the groove 225 in order to fully communicate the liquid guiding pipe when the movable roller 223 is rotated.

The outside of valve cover 21 of the present invention may also be provided with a cover plate 23, and the cover plate 23 is provided with a liquid guiding hole 231 corresponding to the position of the flow guiding hole 211, the liquid guiding hole 231 may connect the liquid guiding pipe to the water inlet 43 via the flow guiding hole 211. The cover plate 23 is provided with a positioning hole 232 which the transmission shaft 52 can pass through and be connected to, the positioning hole 232 is provided thereon with a pointer 233 which can be rotated with the transmission shaft 52, the pointer 233 can indicate the liquid guiding pipe communicated with the water outlet 42, so that it is easy for a user to understand the communicated state of the liquid suction pump. The inner side of the cover plate 23 is provided with a shaft sleeve 234 sleeved on the transmission shaft 52, the shaft sleeve 234 can improve the connection stability between the transmission shaft 52 and the cover plate 23, and reduce the phenomenon that vibration is easily caused by too many assemblies on the transmission shaft 52. . In order to make the installation of the valve body assembly 2 more stable, a valve body mounting reinforcing bar 24 may be arranged between the valve housing 21 and the valve body mounting seat 1, and the valve housing 21 is fixedly mounted on the reinforcing bar.

After the multi-position one-way valve for the medical instrument cleaning device of the present invention is installed, the cleaning liquid of a cleaning basket or a cleaning cavity is transported through a pipe cavity joint and the liquid guiding pipe, and is connected to the water inlet 43 after passing through the liquid guiding hole 231 and the flow guiding hole 211. The liquid suction pump is connected to the water outlet 42, and the cleaning liquid can be extracted by the suction action of the liquid suction pump. When the multi-position one-way valve for the medical instrument cleaning device is operated, the motor 3 is powered on, and the motor 3 drives the transmission assembly 5, the grating plate 62 and the valve plug 22 to rotate. When the grating disk 62 triggers the photoelectric induction pipe 61 to act, the motor 3 stops working, at this time, one of the liquid guiding pipes is in the gap of the movable roller 223 and the groove 225, and thus is in a communicated state, and the other liquid guiding pipes are closed by the press between the outer edge of the roller 223 and the inner cavity of the valve casing 21 to realize a separate passage of the liquid guiding pipe, the liquid suction pump on the water outlet 42 sucks the liquid guiding pipe of a passage. As the grating disk 62 is rotated, the liquid guiding pipes are sequentially communicated and also sequentially closed, thereby realizing the sequential suction of the liquid guiding pipe by the liquid suction pump.

The above specific embodiments are merely embodiments of the present invention with better effects, all the structures that are the same or equivalent to the multi-position one-way valve for the medical instrument cleaning device of the present invention are within the protection scope of the present invention.

Claims

1. A multi-position one-way valve for a medical instrument cleaning device, comprising a valve body mounting seat (1) fixed on a cleaning machine and a valve body assembly (2) provided on the valve body mounting seat (1), wherein the valve body mounting seat (1) is sequentially provided thereon with a motor (3), a photoelectrical graduator (6), a liquid flow transfer assembly (4) and a valve body assembly (2), a liquid flow transfer assembly (4) is communicated with a liquid suction pump, the valve body assembly (2) comprises a valve housing (21) arranged on the valve body mounting seat (1) and a valve plug (22) arranged on a transmission shaft (52), the valve housing is provided thereon with at least three flow guiding holes (211) corresponding to the position of a water inlet (43), the valve plug (22) comprises a mounting plate (221) fixed on the transmission shaft (52), and a pin shaft (222) arranged on the mounting plate (221) and a movable roller (223) arranged on the pin shaft (222), the outer edge of the movable roller (223) is matched with and connected to an inner cavity of the valve housing (21).

2. The multi-position one-way valve for the medical instrument cleaning device according to claim 1, wherein the transmission shaft (5) is arranged on a rotating shaft of the motor (3), the photoelectric graduator (6) and the valve body assembly (2) are provided on the transmission assembly (5).

3. The multi-position one-way valve for the medical instrument cleaning device according to claim 2, wherein the transmission assembly (5) comprises a coupling (51) provided on the rotating shaft of the motor (3), the transmission shaft (52) provided on the coupling (51) and passing through and connected on the photoelectric graduator (6), and the valve body assembly (2) fixed on the transmission shaft (52).

4. The multi-position one-way valve for the medical instrument cleaning device according to claim 3, wherein the photoelectric graduator (6) comprises a photoelectric induction pipe (61) provided on the valve body mounting seat (1) and a grating disk (62) arranged on the transmission shaft (52), the grating disk corresponds to the position of the photoelectric induction pipe (61), and the photoelectric induction pipe (61) is electrically connected to the motor (3).

5. The multi-position one-way valve for the medical instrument cleaning device according to claim 4, wherein the transmission shaft (52) is provided with a positioner (63) connected to the grating disk (62).

6. The multi-position one-way valve for the medical instrument cleaning device according to claim 4, wherein a fixed plate (64) is provided between the valve body mounting seat (1) and the photoelectric induction pipe (61).

7. The multi-position one-way valve for the medical instrument cleaning device according to any one of claims 1 to 6, wherein the liquid flow transfer assembly (4) comprises a liquid flow transfer plate (41) provided on the valve body mounting seat (1), the liquid flow transfer plate (41) is provided with a water outlet (42) connected to the liquid suction pump and at least three water inlets (43) communicated with the water outlet (42).

8. The multi-position one-way valve for medical instrument cleaning device according to any one of claims 1 to 6, wherein the two sides of the mounting plate (221) are provided with a sealed plate (224), and the movable roller (223) is arranged between the mounting plate (221) and the sealed plate (224), The sealed plate (224) and the mounting plate (221) are respectively provided thereon with a groove (225) of which the position correspond to the positions thereof and through which a liquid guiding pipe passes through.

9. The multi-position one-way valve for the medical instrument cleaning device according to any one of claims 1 to 6, wherein the outside of the valve housing (21) is provided with a cover plate (23), the cover plate (23) is provided thereon with a liquid guiding hole (231) corresponding to the position of a flow guiding hole (211).

10. The multi-position one-way valve for the medical instrument cleaning device according to claim 9, wherein the cover plate (23) is provided thereon with a positioning hole (232) that can pass through and be connected to the transmission shaft (52), and the positioning hole (232) is provided thereon with a pointer (233) that can be rotated with the transmission shaft (52).