CN116966410A - Y valve anti-reflux device with gas flow blocking function - Google Patents

Y valve anti-reflux device with gas flow blocking function Download PDF

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Publication number
CN116966410A
CN116966410A CN202311000285.4A CN202311000285A CN116966410A CN 116966410 A CN116966410 A CN 116966410A CN 202311000285 A CN202311000285 A CN 202311000285A CN 116966410 A CN116966410 A CN 116966410A
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CN
China
Prior art keywords
valve
rotating disc
valve body
liquid
piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202311000285.4A
Other languages
Chinese (zh)
Inventor
熊叶
万希晨
徐萍
江志群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
First Affiliated Hospital of Nanchang University
Original Assignee
First Affiliated Hospital of Nanchang University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by First Affiliated Hospital of Nanchang University filed Critical First Affiliated Hospital of Nanchang University
Priority to CN202311000285.4A priority Critical patent/CN116966410A/en
Publication of CN116966410A publication Critical patent/CN116966410A/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/24—Check- or non-return valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/223—Multiway valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A61M2039/0258—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body for vascular access, e.g. blood stream access
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A61M2039/027—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body having a particular valve, seal or septum
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A61M2039/0273—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body for introducing catheters into the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/24—Check- or non-return valves
    • A61M2039/2473—Valve comprising a non-deformable, movable element, e.g. ball-valve, valve with movable stopper or reciprocating element
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/75—General characteristics of the apparatus with filters

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Pulmonology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Check Valves (AREA)

Abstract

The application provides a Y-valve backflow prevention device with a gas flow blocking function, and relates to the field of medical instruments. The method comprises the following steps: a one-way valve component is arranged in a joint at one end of the main pipe; the one-way valve assembly comprises a valve body, a rotating disc is movably arranged in the valve body, and a through hole and a one-way valve which are used for communicating a main pipe are arranged on the rotating disc; the rotating disc is provided with a driving handle which is movably connected with the valve body; the one-way valve comprises a gas barrier film and a liquid anti-reflux structure; the liquid anti-reflux structure comprises a baffle, a liquid channel is formed in the baffle, a blocking ball, a limiting piece, an elastic piece and a connecting piece are arranged in the liquid channel, the rear end of the blocking ball is connected with the connecting piece through the elastic piece, and the connecting piece is fixed on the inner wall of the liquid channel. The application can improve the problem that the guide wire or the guide tube in the tube or the valve can not be easily inserted or taken out while ensuring the reflux preventing effect in the prior art; meanwhile, the air inlet can be blocked, and the problem of air misinlet in the prior art is solved.

Description

Y valve anti-reflux device with gas flow blocking function
Technical Field
The application relates to the field of medical instruments, in particular to a Y-valve backflow prevention device with a gas flow blocking function.
Background
The interventional therapy is an emerging therapeutic method between surgical and medical treatment, namely, under the guidance of image medicine, a micro channel with a diameter of a few millimeters is made on blood vessels and skin or an original pipeline of a human body, and the Y valve is auxiliary equipment commonly used in the medical field and is mainly used in interventional therapy and matched with a guide wire or a catheter. The existing Y valve is provided with a one-way valve to form a one-way circulation mechanism, so that the backflow prevention effect is achieved.
Through searching, the patent document with the patent publication number of CN217286895U provides a full-automatic vascular intervention one-way circulation valve, and the specification of the valve discloses: the full-automatic vascular intervention one-way flow valve is used for connecting and conveying contrast medium, normal saline or other liquid and preventing the liquid from flowing backwards.
The above-mentioned reference is used to illustrate that the check valve in the prior art can ensure that the Y valve can realize the effect of preventing reverse flow by setting the check valve, but in some practical cases, the whole valve body needs to be kept in a completely smooth state so as to ensure that the guide wire or the guide tube in the tube or the valve can be inserted or taken out smoothly, and the check valve in the prior art is not convenient for smooth implementation of the process. In addition, in the state of liquid circulation, the check valve in the prior art can also allow air and other gases to enter the body through the Y valve channel, and the incorrect entry of the air can easily cause complications such as infection or embolism and the like of a patient, so that the life of the patient can be seriously endangered; the check valve in the prior art cannot block air.
It is therefore necessary to design and manufacture a Y-valve with anti-reflux device.
Disclosure of Invention
The application aims to provide a Y-valve backflow prevention device with a gas flow blocking function, which can solve the problems that a guide wire or a guide pipe in a pipe or a valve cannot be easily inserted or taken out while ensuring the backflow prevention effect in the prior art; meanwhile, the air inlet can be blocked, and the problem of air misinlet in the prior art is solved.
In order to solve the technical problems, the application adopts the following technical scheme:
the Y-valve backflow prevention device with the gas flow blocking function comprises a main pipe and a branch pipe which are mutually communicated, wherein a one-way valve assembly is arranged in a joint at one end of the main pipe;
the one-way valve assembly comprises a valve body, a rotating disc is movably arranged in the valve body, the rotating disc is rotationally connected with the valve body through a central shaft, and through holes and one-way valves for communicating a main pipe are respectively arranged on two sides of the central shaft on the rotating disc; the rotating disc is provided with a driving handle which is movably connected with the valve body;
the one-way valve comprises a gas barrier film and a liquid anti-reflux structure, and the gas barrier film is arranged at the front end of the liquid anti-reflux structure; the liquid backflow prevention structure comprises a baffle, a liquid channel is formed in the baffle, a stop ball, a limiting piece, an elastic piece and a connecting piece are arranged in the liquid channel, the limiting piece is fixed on the inner wall of the liquid channel, the stop ball is arranged in the limiting piece, the rear end of the stop ball is connected with the connecting piece through the elastic piece, and the connecting piece is fixed on the inner wall of the liquid channel; when the elastic piece is in a natural state, the blocking ball and the limiting piece are mutually abutted.
Further, in the application, the baffle ball comprises an inner rubber layer and an outer air bag layer, and a one-way charging nozzle is arranged on one side of the outer air bag layer, which is close to the gas barrier film.
Further, in the application, the rotating disc is a circular disc, and the geometric centers of the through hole and the one-way valve are positioned on the same circular arc taking the central shaft as the center of a circle.
Further, in the application, the valve body is provided with a sliding groove, the driving handle penetrates through the sliding groove to extend outwards, and one end of the driving handle, which is far away from the connecting disc, is provided with an adjusting handle.
Further, in the application, a concave part which is convenient for pressing by a human finger is arranged on the outer side of the adjusting handle.
Further, in the application, the limiting piece is an annular elastic piece, an arc-shaped bulge is arranged on the inner wall of the annular elastic piece along the circumferential direction of the annular elastic piece, and the blocking ball is abutted with the arc-shaped bulge.
Further, in the application, an indicator for indicating the adjustment direction is provided on the outer wall of the valve body.
Further, in the application, the diameter of the valve body is larger than that of the main pipe, and the driving handle is arranged at the edge of the rotating disc.
The application has at least the following advantages or beneficial effects:
according to the application, the rotating disc is controlled to rotate in the valve body through the driving handle, the positions of the through holes and the one-way valve are switched to be respectively communicated with the main pipe, when the through holes are communicated with the main pipe, the device is in a bidirectional circulation state, so that the main pipe can be ensured to smoothly realize a through flow effect, and when a guide wire or a guide pipe is inserted or taken out, the guide wire or the guide pipe can be ensured to be smoothly inserted or taken out; when the one-way valve is communicated with the main pipe, the device is in a one-way circulation state, so that liquid reflux can be effectively prevented; can block gas such as air through setting up the gas barrier membrane and get into liquid passageway, and liquid can pass gas barrier membrane free access liquid passageway, when liquid is got into, promotes the check ball, thereby produces the clearance between and the locating part and open liquid passageway and supply liquid to pass through, when no liquid is got into, under the effect of elastic component, the butt is closed liquid passageway between check ball and the locating part. The application can improve the problem that the guide wire or the guide tube in the tube or the valve can not be easily inserted or taken out while ensuring the reflux preventing effect in the prior art; meanwhile, the air inlet can be blocked, and the problem of air misinlet in the prior art is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a Y-valve anti-reflux device with a gas flow blocking function according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of a one-way valve assembly according to an embodiment of the present application;
FIG. 3 is a cross-sectional view taken along section A-A of FIG. 2;
FIG. 4 is a cross-sectional view of section B-B of FIG. 2;
FIG. 5 is a schematic view of a structure of a blocking ball according to an embodiment of the present application;
fig. 6 is a schematic diagram of a structure of a turntable after rotation according to an embodiment of the present application.
Icon: 100-main pipe, 200-branch pipe, 300-check valve component, 310-valve body, 311-chute, 312-indicator, 320-rotating disc, 321-central shaft, 323-through hole, 330-driving handle, 331-adjusting handle, 332-concave part, 340-gas barrier film, 351-baffle, 352-baffle ball, 3521-inner rubber layer, 3522-outer air bag layer, 3523-one-way charging nozzle, 353-liquid channel, 354-limiting piece, 355-elastic piece, 356-connecting piece.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Examples
Referring to fig. 1 to 6, a schematic structural diagram of a Y-valve anti-reflux device with a gas flow blocking function according to an embodiment of the present application is shown;
the embodiment provides a Y-valve backflow prevention device with a gas flow blocking function, which comprises a main pipe 100 and a branch pipe 200 which are mutually communicated, wherein a one-way valve assembly 300 is arranged in a joint at one end of the main pipe 100;
the check valve assembly 300 comprises a valve body 310, a rotating disc 320 is movably arranged in the valve body 310, the rotating disc 320 is rotationally connected with the valve body 310 through a central shaft 321, and through holes 323 and check valves for communicating the main pipe 100 are respectively arranged on two sides of the central shaft 321 on the rotating disc 320; the rotating disc 320 is provided with a driving handle 330, and the driving handle 330 is movably connected to the valve body 310;
the check valve comprises a gas barrier film 340 and a liquid anti-reflux structure, and the gas barrier film 340 is arranged at the front end of the liquid anti-reflux structure; the liquid anti-reflux structure comprises a baffle 351, wherein the baffle 351 is provided with a liquid channel 353, a baffle ball 352, a limiting piece 354, an elastic piece 355 and a connecting piece 356 are arranged in the liquid channel 353, the limiting piece 354 is fixed on the inner wall of the liquid channel 353, the baffle ball 352 is arranged in the limiting piece 354, the rear end of the baffle ball 352 is connected with the connecting piece 356 through the elastic piece 355, and the connecting piece 356 is fixed on the inner wall of the liquid channel 353; when the elastic member 355 is in a natural state, the stop ball 352 and the stopper 354 abut against each other.
Next, a Y-valve backflow prevention device having a gas flow blocking function in one of the present exemplary embodiments will be further described.
In the embodiment of the present application, the check valve assembly 300 includes a valve body 310, a rotating disc 320 is movably disposed in the valve body 310, the rotating disc 320 is rotatably connected with the valve body 310 through a central shaft 321, the rotating disc 320 can rotate in the valve body 310, through holes 323 and check valves for communicating with the main pipe 100 are respectively disposed on two sides of the central shaft 321 on the rotating disc 320, and after the rotating disc 320 rotates, positions of the through holes 323 and the check valves can be changed, so that the through holes 323 and the check valves are respectively communicated with the main pipe 100; the rotating disc 320 is provided with a driving handle 330, the driving handle 330 is movably connected to the valve body 310, and the rotation of the rotating disc 320 is controlled by the driving handle 330; specifically, the diameter of the valve body 310 is larger than that of the main pipe 100, and the driving handle 330 is provided at the edge of the rotating disc 320, thereby facilitating the operation.
As a preferred embodiment, the rotating disc 320 is a disc, the geometric centers of the through-hole 323 and the check valve are located on the same circular arc with the central shaft 321 as the center, that is, after the rotating disc 320 rotates 180 °, the through-hole 323 and the check valve are mutually exchanged, so that the working states of the through-hole 323 and the check valve, which are respectively connected to the main pipe 100, can be stably adjusted, when the through-hole 323 is connected, the main pipe 100 can be ensured to realize the through-flow effect, and when the guide wire or the catheter is inserted or taken out, the main pipe 100 can be ensured to realize the through-flow effect, the guide wire or the catheter can be ensured to be smoothly inserted or taken out, and when the check valve is connected, the main pipe 100 is in the unidirectional through-flow state, so that the anti-reflux effect can be well realized, and thus the anti-reflux effect can be ensured at the through-flow level.
As a preferred embodiment, the valve body 310 is provided with a sliding slot 311, the driving handle 330 extends outwards through the sliding slot 311, the sliding slot 311 is in a circular arc shape, and the radian of the sliding slot 311 is matched with the radian of the rotating disc 320 rotating 180 degrees, namely, when the driving handle 330 moves from one end to the other end along the sliding slot 311, the rotating disc 320 rotates 180 degrees; the end of the driving handle 330 far away from the connecting disc is provided with an adjusting handle 331, the outer side of the adjusting handle 331 is provided with a concave part 332 which is convenient for the fingers to press, and the adjusting handle 331 is convenient for the medical staff to operate.
As a preferred embodiment, an indicator 312 for indicating the adjustment direction is provided on the outer wall of the valve body 310. In the actual use process, the user can distinguish and adjust the adjustment state corresponding to the direction of the driving handle 330 by observing the indicator 312, so that the user can operate conveniently and the operation efficiency is improved.
In the embodiment of the application, the check valve comprises a gas barrier film 340 and a liquid anti-reflux structure, wherein the gas barrier film 340 is arranged at the front end of the liquid anti-reflux structure, specifically, the gas barrier film 340 is a polymer film, and the polymer film is arranged at the front end of the liquid anti-reflux structure, so that the gas anti-reflux structure can be effectively blocked, and thus, the gas anti-reflux structure can be effectively prevented from entering a patient, and complications such as infection or air embolism caused by air misentering in the prior art are solved; the liquid backflow prevention structure comprises a baffle 351, wherein the baffle 351 is provided with a liquid channel 353, a baffle ball 352, a limiting piece 354, an elastic piece 355 and a connecting piece 356 are arranged in the liquid channel 353, the limiting piece 354 is fixed on the inner wall of the liquid channel 353, the limiting piece 354 is an annular elastic piece, an arc-shaped bulge is arranged on the inner wall of the annular elastic piece along the circumferential direction of the annular elastic piece, the baffle ball 352 is arranged in the limiting piece 354, the rear end of the baffle ball 352 is connected with the connecting piece 356 through the elastic piece 355, the connecting piece 356 is fixed on the inner wall of the liquid channel 353, and the connecting piece 356 is of a net-shaped structure and can not block liquid from passing through; when the elastic member 355 is in a natural state, the stop ball 352 and the stopper 354 abut against each other, specifically, the stop ball 352 abuts against the arc-shaped protrusion. When liquid enters the liquid channel 353, a certain pressure is applied to the baffle ball 352 to push the baffle ball 352 to move backwards, so that a gap is formed between the baffle ball 352 and the limiting piece, the liquid channel 353 is opened, and the liquid enters; when no liquid enters, under the elastic recovery action of the elastic piece 355, the blocking ball 352 is pushed to move forward to keep abutting with the limiting piece, and the liquid channel 353 is closed; specifically, the elastic member 355 may be a spring.
In a preferred embodiment, the blocking ball 352 includes an inner rubber layer 3521 and an outer airbag layer 3522, and a unidirectional air nozzle 3523 is disposed on a side of the outer airbag layer 3522 adjacent to the gas barrier film 340. Through setting up the check ball 352 into inside and outside two-layer structure, the skin sets up to the gasbag layer, can stretch into trachea and one-way charging connector 3523 butt joint from being responsible for 100 passageway, aerifys the gasbag for the check ball 352 inflation grow, can avoid after the spring inefficacy, lead to the check ball 352 unable to resume to the normal position, prevent that the reflux effect is poor.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (8)

1. The Y-valve backflow prevention device with the gas flow blocking function is characterized by comprising a main pipe and a branch pipe which are mutually communicated, wherein a one-way valve assembly is arranged in a joint at one end of the main pipe;
the one-way valve assembly comprises a valve body, a rotating disc is movably arranged in the valve body, the rotating disc is rotationally connected with the valve body through a central shaft, and through holes and one-way valves for communicating a main pipe are respectively arranged on two sides of the central shaft on the rotating disc; the rotating disc is provided with a driving handle which is movably connected with the valve body;
the one-way valve comprises a gas barrier film and a liquid anti-reflux structure, and the gas barrier film is arranged at the front end of the liquid anti-reflux structure; the liquid backflow prevention structure comprises a baffle, a liquid channel is formed in the baffle, a stop ball, a limiting piece, an elastic piece and a connecting piece are arranged in the liquid channel, the limiting piece is fixed on the inner wall of the liquid channel, the stop ball is arranged in the limiting piece, the rear end of the stop ball is connected with the connecting piece through the elastic piece, and the connecting piece is fixed on the inner wall of the liquid channel; when the elastic piece is in a natural state, the blocking ball and the limiting piece are mutually abutted.
2. The Y valve anti-reflux device with gas blocking function according to claim 1, wherein the blocking ball comprises an inner rubber layer and an outer air bag layer, and a unidirectional charging nozzle is arranged on one side of the outer air bag layer, which is close to the gas blocking film.
3. The Y-valve anti-reflux device with gas flow blocking function according to claim 1, wherein the rotating disc is a circular disc, and the geometric centers of the through-flow hole and the one-way valve are located on the same circular arc with the central shaft as a center.
4. The Y valve anti-reflux device with the gas flow blocking function according to claim 1, wherein the valve body is provided with a sliding groove, the driving handle extends outwards through the sliding groove, and an adjusting handle is arranged at one end of the driving handle far away from the connecting disc.
5. The Y valve anti-reflux device with air blocking function according to claim 4, wherein a concave portion for facilitating the pressing of a human finger is provided on the outer side of the adjusting handle.
6. The Y valve anti-reflux device with gas flow blocking function according to claim 1, wherein the limiting member is an annular elastic piece, an arc-shaped protrusion is arranged on the inner wall of the annular elastic piece along the circumferential direction of the annular elastic piece, and the blocking ball is abutted with the arc-shaped protrusion.
7. The Y-valve anti-reflux device with gas flow blocking function according to claim 1, wherein an indicator for indicating an adjustment direction is provided on an outer wall of the valve body.
8. The Y valve anti-reflux device with gas flow blocking function according to claim 1, wherein the diameter of the valve body is larger than the diameter of the main pipe, and the driving handle is provided at the edge of the rotating disc.
CN202311000285.4A 2023-08-09 2023-08-09 Y valve anti-reflux device with gas flow blocking function Withdrawn CN116966410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311000285.4A CN116966410A (en) 2023-08-09 2023-08-09 Y valve anti-reflux device with gas flow blocking function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311000285.4A CN116966410A (en) 2023-08-09 2023-08-09 Y valve anti-reflux device with gas flow blocking function

Publications (1)

Publication Number Publication Date
CN116966410A true CN116966410A (en) 2023-10-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311000285.4A Withdrawn CN116966410A (en) 2023-08-09 2023-08-09 Y valve anti-reflux device with gas flow blocking function

Country Status (1)

Country Link
CN (1) CN116966410A (en)

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Application publication date: 20231031