Double-valve-plate one-way valve

Abstract

The utility model discloses a one-way valve with double valve plates, which comprises a valve pipe joint, a connecting piece and a female Luer joint, the valve plates are arranged between the valve pipe joint and the connecting piece and between the connecting piece and the female Luer joint, the valve plates can be bent under stress, the female Luer joint is provided with a second ring table, the connecting piece is provided with a second boss, a second through hole and a second convex column, and the second boss is provided with a second through hole. According to the one-way valve, the valve plate is deformed into a positive V shape or a reverse V shape under stress, one-way flowing of liquid flow is successfully achieved, meanwhile, when the one-way valve is applied to a high-pressure-resistant pipeline, the one-way valve is not prone to being opened, and the larger the borne liquid flow pressure is, the larger the one-way valve is, the larger the one-way valve is, the smaller the one-way valve is, and the more convenient the one-way valve is. The higher the speed of liquid flow passing through the device is, the infusion efficiency of an infusion system applying the device is improved, when the liquid flow passes through the device in the opposite direction, the higher the pressure of the liquid flow is, the closer the liquid flow is, a backup is reserved, and the safety of a pipeline applying the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to one -way valve technical field, concretely is a kind of double valve piece one-way valve. BACKGROUND

[0002] One-way valve can be applied to infusion system in medical process, for preventing drug solution or blood backflow and pollution, ensuring infusion safety, in addition, one-way valve also has important application in complex operation, for improving the work efficiency of medical staff.

[0003] At present, one-way valve applied in infusion process generally includes valve piece, valve piece controls the liquid flow direction, to realize the effect of one-way flow of liquid flow, however, the pipeline of one-way valve is opened or closed by the controllable sliding of valve piece, which makes the pipeline of one-way valve easy to be opened when the one-way valve is applied to high-pressure pipeline, and then the liquid in the pipeline is easy to be contaminated, at the same time, the upper limit of infusion rate after one-way valve is opened is low, which makes the infusion efficiency low.

[0004] Therefore, a double valve piece one-way valve is proposed. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing a kind of double valve piece one-way valve, to solve the problem that existing one-way valve is easy to be opened in high-pressure pipeline and the upper limit of flow rate of flow is low as proposed in above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of double valve piece one-way valve, including valve pipe joint, the port of the valve pipe joint is provided with connecting piece, the connecting piece is provided with female luer joint away from the port of valve pipe joint, valve piece is arranged between the valve pipe joint and connecting piece, between connecting piece and female luer joint, the valve piece can be bent by force;

[0007] The inner bottom surface of the side of the female luer joint close to the connecting piece is provided with second ring platform;

[0008] The inner edge of the side of the connecting piece close to the female luer joint is provided with a plurality of second side platforms at equal distances, the inner bottom surface of the side of the connecting piece close to the female luer joint is provided with second boss, the bottom end of the second boss is provided with second through hole on both sides, and the top end of the second boss is provided with second protruding column;

[0009] The inner edge of the side of the valve pipe joint close to the connecting piece is provided with a plurality of first side platforms at equal distances, the inner bottom surface of the side of the valve pipe joint close to the connecting piece is provided with first boss, the bottom end of the first boss is provided with first through hole on both sides, and the top end of the first boss is provided with first protruding column;

[0010] The inner bottom surface of the side of the connecting piece close to the valve pipe joint is provided with first ring platform.

[0011] Preferably, the valve piece arranged between the valve pipe joint and the connecting piece is located between the first annular platform and the first convex column.

[0012] Preferably, the valve piece arranged between the connecting piece and the female luer joint is located between the second convex column and the second annular platform.

[0013] Preferably, the inside of the connecting piece is through arranged.

[0014] Preferably, the inside of the valve pipe joint is through arranged.

[0015] Preferably, the inside of the female luer joint is through arranged.

[0016] Compared with the prior art, the beneficial effects of the device are as follows: the device successfully realizes the one-way flow of liquid flow by the arrangement of the second annular platform, the second convex column and the valve piece therebetween, the arrangement of the first convex column, the first annular platform and the valve piece therebetween, and the utilization of the force deformation of the valve piece into a positive V shape or a reverse V shape, is not easy to be opened when applied to a high-pressure pipeline, and the greater the liquid flow pressure, the greater the rate of liquid flow through the device, the liquid flow efficiency of the infusion system applying the device is improved, when the liquid flow passes through the device in the opposite direction, the greater the liquid flow pressure, the tighter the closing, and the arrangement of the two valve pieces leaves a backup, improves the safety of the pipeline applying the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure view of the utility model;

[0018] Figure 2 It is the sectional view of the utility model;

[0019] Figure 3 It is the structure view of the utility model in the opening state;

[0020] Figure 4 It is the structure explosion drawing of the utility model in one direction;

[0021] Figure 5 It is the structure view of the utility model in the closing state;

[0022] Figure 6 It is the structure explosion drawing of the utility model in the other direction.

[0023] In the drawing: 1, valve pipe joint; 101, first convex platform; 102, first convex column; 103, first through port; 104, first side platform; 2, connecting piece; 201, first annular platform; 202, second convex platform; 203, second through port; 204, second convex column; 205, second side platform; 3, female luer joint; 301, second annular platform; 4, valve piece. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0025] Referring to Figures 1-6 The present application provides a technical scheme of a double-valve-plate check valve.

[0026] The double-valve-plate check valve comprises a valve pipe joint 1, a connecting piece 2 arranged at the port of the valve pipe joint 1, a female luer joint 3 arranged away from the port of the valve pipe joint 1, and valve plates 4 arranged between the valve pipe joint 1 and the connecting piece 2 and between the connecting piece 2 and the female luer joint 3, wherein the valve plates 4 can be bent under force.

[0027] Further, referring to Figure 4 The inner bottom surface of the female luer joint 3 near the connecting piece 2 is provided with a second ring table 301, and referring to Figure 6 The inner edge of the connecting piece 2 near the female luer joint 3 is provided with a plurality of second side tables 205 at equal distances, the inner bottom surface of the connecting piece 2 near the female luer joint 3 is provided with a second boss 202, the bottom end of the second boss 202 is provided with a second through hole 203 on both sides, the top end of the second boss 202 is provided with a second protruding column 204, the inner edge of the valve pipe joint 1 near the connecting piece 2 is provided with a plurality of first side tables 104 at equal distances, the inner bottom surface of the valve pipe joint 1 near the connecting piece 2 is provided with a first boss 101, the bottom end of the first boss 101 is provided with a first through hole 103 on both sides, and the top end of the first boss 101 is provided with a first protruding column 102, and referring to Figure 4 The inner bottom surface of the connecting piece 2 near the valve pipe joint 1 is provided with a first ring table 201.

[0028] The valve plates 4 can be bent to the inside of the first side tables 104 and the second side tables 205, and the bending of the valve plates 4 can be limited, and the gaps between the plurality of first side tables 104 or the second side tables 205 are used for the circulation of liquid flow.

[0029] Wherein, it needs to be added that the valve piece 4 between the valve pipe joint 1 and the connecting piece 2 is located between the first ring table 201 and the first convex column 102, the valve piece 4 between the connecting piece 2 and the female luer joint 3 is located between the second convex column 204 and the second ring table 301, the inside of the connecting piece 2 is through, the inside of the valve pipe joint 1 is through, the inside of the female luer joint 3 is through, the inside of the above connecting piece 2, valve pipe joint 1 and female luer joint 3 is through, which is a conventional setting, and will not be described here, and it needs to be added that the liquid flow flows out from the inside of the second ring table 301 provided on the female luer joint 3, the liquid flow flows out from the inside of the first ring table 201 through the second through hole 203, and the liquid flow flows out from the inside of the valve pipe joint 1 through the first through hole 103.

[0030] By the setting of the second ring table 301, the second convex column 204 and the valve piece 4 therebetween, the first convex column 102 and the first ring table 201 and the valve piece 4 therebetween, the force deformation of the valve piece 4 into a positive V shape or a reverse V shape is utilized, and the unidirectional flow of the liquid flow is successfully realized, and when applied to a high pressure pipeline, it is not easy to be opened, and the greater the liquid flow pressure, the greater the rate of liquid flow through the device, which improves the infusion efficiency of the infusion system using the device, and when the liquid flow is in the opposite direction through the device, the greater the liquid flow pressure, the tighter the closure, and the setting of the two valve pieces 4 provides backup and improves the safety of the pipeline using the device.

[0031] The working principle of the device is described by the working process of the device:

[0032] Referring to Figure 3 and Figure 6 When the direction of the liquid flow is from the female luer joint 3 to the valve pipe joint 1, the valve piece 4 is forced to bend into a positive V shape under the resistance of the second convex column 204 and the first convex column 102, so that the female luer joint 3, the connecting piece 2 and the valve pipe joint 1 are connected, and because the valve piece 4 needs to be subjected to a certain degree of liquid flow pressure to bend into a positive V shape, the double-valve-piece check valve is not easy to be opened, thereby preventing the pipeline using the device from being contaminated, and when the valve piece 4 is subjected to gradually increasing liquid flow pressure, the bending degree of the valve piece 4 will be greater, thereby gradually increasing the liquid flow rate after the opening of the double-valve-piece check valve, greatly improving the infusion efficiency of the infusion system using the device, and the structure is simple and efficient, suitable for popularization and use.

[0033] At the same time, referring to Figure 4 and Figure 5When the direction of the liquid flow is from the valve pipe joint 1 to the female luer joint 3, the valve piece 4 is forced and bent into an inverse V shape under the resistance of the first ring platform 201, thereby closing the communication between the valve pipe joint 1 and the connecting piece 2, and the valve piece 4 is pressed against the first ring platform 201 more tightly as the liquid flow pressure on the valve piece 4 is greater, so that the pipeline using the device is closed more tightly, and the valve piece 4 at the second ring platform 301 serves as a backup and plays a replacement role when the valve piece 4 at the first ring platform 201 is damaged, so that the safety of the pipeline using the device is improved, the structure is simple and efficient, and the device is suitable for popularization and use.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A dual-valve check valve comprising a valve pipe joint (1), characterized in that: The port of the valve pipe joint (1) is provided with a connecting piece (2), the connecting piece (2) is provided with a female luer joint (3) away from the port of the valve pipe joint (1), and the valve pipe joint (1) and the connecting piece (2) and the connecting piece (2) and the female luer joint (3) are provided with valve pieces (4), and the valve pieces (4) can be bent under force; The female luer joint (3) is provided with a second ring table (301) on the inner bottom surface of the side close to the connecting piece (2); The connecting piece (2) is provided with a plurality of second side tables (205) equidistantly arranged on the inner edge of the side close to the female luer joint (3), and the inner bottom surface of the side close to the female luer joint (3) of the connecting piece (2) is provided with a second boss (202), both sides of the bottom end of the second boss (202) are provided with second through holes (203), and the top end of the second boss (202) is provided with a second protruding column (204); The valve pipe joint (1) is provided with a plurality of first side tables (104) equidistantly arranged on the inner edge of the side close to the connecting piece (2), and the inner bottom surface of the side close to the connecting piece (2) of the valve pipe joint (1) is provided with a first boss (101), both sides of the bottom end of the first boss (101) are provided with first through holes (103), and the top end of the first boss (101) is provided with a first protruding column (102); The inner bottom surface of the side close to the valve pipe joint (1) of the connecting piece (2) is provided with a first ring table (201).

2. A dual-valve flapper check valve according to claim 1, wherein: The valve piece (4) arranged between the valve pipe joint (1) and the connecting piece (2) is located between the first ring table (201) and the first protruding column (102).

3. A dual-land check valve according to claim 2, wherein: The valve piece (4) arranged between the connecting piece (2) and the female luer joint (3) is located between the second protruding column (204) and the second ring table (301).

4. A dual-valve flapper check valve according to claim 3, wherein: The inside of the connecting piece (2) is provided with a through hole.

5. A dual-land check valve according to claim 4, wherein: The inside of the valve pipe joint (1) is provided with a through hole.

6. A dual-land check valve according to claim 5, wherein: The inside of the female luer joint (3) is provided with a through hole.

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