CN216877354U - A fluid one-way control structure, a directional jet generation structure and a drainage bag - Google Patents

Abstract

The utility model discloses a fluid one-way control structure, a directional jet flow generation structure and a drainage bag, and relates to the field of medical supplies. The utility model relates to a fluid one-way control structure, which comprises: a runoff channel; one end of each valve diaphragm is a fixed end and is directly or indirectly fixed to the inner wall of the runoff stack, and the other end of each valve diaphragm is a free end; wherein, the shape of the valve membrane is half of the inclined section of the runoff stack. The utility model solves the problem of difficult separation caused by vacuum adsorption or adhesion of the inner wall of the drainage bag by generating unidirectional jet flow.

Description

A fluid one-way control structure, a directional jet generation structure and a drainage bag

technical field

The utility model belongs to the technical field of medical consumables, in particular to a fluid one-way control structure, a directional jet generation structure and a drainage bag.

Background technique

The material of the drainage bag is mostly PVC material. After the drainage bag is stacked and stored for a long time, the inner wall of the drainage bag will be difficult to separate due to vacuum adsorption or adhesion.

Utility model content

The purpose of the present invention is to provide a fluid unidirectional control structure, a directional jet generation structure and a drainage bag, which can solve the problem of difficult separation caused by vacuum adsorption or adhesion on the inner wall of the drainage bag by generating a unidirectional jet.

In order to solve the above-mentioned technical problems, the utility model is realized through the following technical solutions:

The utility model provides a fluid one-way control structure, which comprises:

runoff corridors; and,

One or more pairs of symmetrically arranged valve sheets, one end of the valve sheet is a fixed end, directly or indirectly fixed to the inner wall of the runoff channel, and the other end is a free end;

Wherein, the shape of the valve sheet is half of the inclined section of the radial passage.

In an embodiment of the present invention, the tangent at any point of the circumferential edge of the radial or inclined section of the radial flow channel does not intersect with the circumferential edge of the radial or inclined section of the radial flow channel.

In an embodiment of the present utility model, the radial cross section of the inner cavity of the radial flow channel is circular;

The valve sheet is semi-elliptical.

In an embodiment of the present invention, the valve sheet is fixed to an installation ring, and the installation ring is sealed and fixed to the inner wall of the radial flow channel.

In an embodiment of the present invention, the inner diameter of the radial flow channel is greater than or equal to the outer diameter of the mounting ring;

The inner wall of the radial flow channel is also provided with a snap ring sleeve narrowed in the axial direction, and the inner diameter of the narrowest part of the snap ring sleeve is smaller than the outer diameter of the mounting ring.

In an embodiment of the present invention, a cross bar is provided in the middle of the mounting ring, and the fixed end of the valve sheet is fixed to the cross bar.

In one embodiment of the present invention, the fixed end of the valve sheet is provided with a reinforcing rib extending to the free end.

The solution also provides a directional jet generating structure, which includes,

an elastic bladder cavity, including an inlet end and an outlet end communicating with the cavity; and,

The above-mentioned fluid one-way control structure is arranged at the inlet end;

Wherein, the direction of the free end of the valve sheet in the fluid one-way control structure is in the cavity of the elastic bladder cavity.

In an embodiment of the present invention, the elastic bladder is provided with one or more elastic rings abutting on the inner wall.

The solution also provides a drainage bag, comprising a bag body and a joint connected by a hose, and the hose is connected in series with the above-mentioned directional jet generating structure.

The utility model solves the problem of difficult separation caused by vacuum adsorption or adhesion of the inner wall of the drainage bag by generating a unidirectional jet.

Of course, any product implementing the present invention does not necessarily need to simultaneously achieve all of the above-mentioned advantages.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1 is the structural representation one of a kind of fluid one-way control structure provided in the utility model;

FIG. 2 is a second structural schematic diagram of a fluid one-way control structure provided in the utility model;

3 is a schematic structural diagram three of a fluid one-way control structure provided in the utility model;

Fig. 4 is the plane shape schematic diagram of single valve sheet;

Fig. 5 is the combined top view schematic diagram of a pair of valve sheets;

Fig. 6 is a schematic diagram of a pair of valve flaps communicating in the runoff corridor;

Fig. 7 is a schematic diagram 1 of a pair of valve flaps ending up in the runoff corridor;

Fig. 8 is the fluid flow schematic diagram at A place in Fig. 7;

9 is a schematic diagram 2 of a pair of valve flaps ending up in the runoff corridor;

10 is a schematic structural diagram of a drainage bag provided in the utility model;

FIG. 11 is a schematic cross-sectional view of the elastic bladder.

In the accompanying drawings, the list of components represented by each number is as follows:

1-interface end;

2- Fluid one-way control structure,

21 - Runoff Corridor,

211 - Snap Ring Set,

22-Valve piece,

221 - Fixed end,

222 - stiffener,

23 - Mounting Ring,

24 - Crossbar,

3- elastic bladder cavity,

31 - elastic ring;

4-bag body;

5- Hose.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As a simple disposable consumable, the drainage bag is often used to save storage space during storage.

Referring to FIG. 1 , the present invention provides a fluid one-way control structure 2 . The main structure includes a cylindrically penetrating radial flow chute 21 . One or more pairs of valve flaps 22 are fixed inside the radial flow chute 21 . The valve sheet 22 in this solution can be made of hard polyethylene material, or can be made of elastic rubber material. One end of the valve sheet 22 is a fixed end 221, which is fixed to the inner wall of the runoff channel. The fixed ends 221 of the pair of valve flaps 22 are overlapped and sealed, and the directions of the free ends are the same. In this case, the direction of the free end relative to the fixed end 221 is the unidirectional flow direction of the fluid unidirectional control structure 2 .

Referring to FIGS. 1 and 4 , in order to improve the fluid sealing effect of the fluid one-way control structure 2 in the off state, the cross section of the radial flow channel 21 is set to be circular. Correspondingly, the valve piece 22 is set as a half of the ellipse. The purpose of this setting is that the half-elliptical valve piece 22 can close half of the space of the runoff passage 21 . A pair of valve pieces 22 with fixed ends 221 connected to each other can seal the entire cross-section of the radial passageway 21 .

Please refer to FIG. 2 , since the material of the valve sheet 22 is not an absolute rigid body, under the cut-off stress state, in order to avoid the valve sheet 22 being deformed greatly due to excessive static pressure and reducing the sealing performance at the cut-off, the valve sheet can be placed on the valve sheet. 22 is provided with a reinforcing rib 222 that diverges from the fixed end 221 to the free end to reduce the deformation amount of the valve sheet 22 under the overall stress condition while maintaining the elasticity of the valve sheet 22 . The sealing effect of the valve sheet 22 can be improved.

Referring to FIGS. 1 to 2 , in order to improve the sealing effect of the valve sheet 22 on the runoff passage 21 , it is necessary to maintain the sealing effect of the valve sheet 22 under stress, and it is necessary to maintain the outer edge of the valve sheet 22 and the inner diameter of the runoff passage 21 . fit. When maintaining the tangent at any point of the circumferential edge of the radial or inclined section of the radial flow chute 21 , it does not intersect with the circumferential edge of the radial or inclined section of the radial flow chute 21 . In this state, the distance from the fixed end 221 to the free end of the valve sheet 22 can be shortened under the condition of the same cross-sectional area, and the dispersion of the distance is relatively low, which can control the overall deformation degree of the valve sheet 22 under the stress state, and improve the The sealing effect of the valve flap 22 in the cut-off state.

Referring to FIGS. 2 and 3 , the mounting ring 23 is sealed and fixed to the inner wall of the radial flow channel 21 , and the valve sheet 22 is fixed to the mounting ring 23 . The installation ring 23 is fixed with a transverse rod 24 , and the transverse rod 24 is used for fixing the fixed end 221 of the valve sheet 22 . In the production process, the valve sheet 22 can be installed on the installation ring 23, and there is no need to assemble inside the radial flow channel 21, which reduces the difficulty of production while maintaining the sealing effect. The valve sheet 22 and the mounting ring 23 may be fixed in a separate type, or may be integrally formed.

Please refer to FIGS. 2 and 3 , in order to facilitate the assembly of the mounting ring 23 and the radial flow shaft 21 , the inner diameter of the radial flow shaft 21 can be processed to be greater than or equal to the outer diameter of the mounting ring 23 , and the mounting ring 23 can be slid into the radial flow shaft 21 Inside. Assembly is more convenient. After the installation ring 23 is assembled with the radial shaft 21, it is necessary to keep the relative position fixed, especially the relative position of the installation ring 23 and the inner wall of the radial shaft 21 under the stress state of the valve sheet 22 and the installation ring 23. A snap ring sleeve 211 narrowed in the axial direction can be provided on the inner wall of the radial flow shaft 21 , and the inner diameter of the narrowest part of the snap ring sleeve 211 is kept smaller than the outer diameter of the installation ring 23 . The snap ring sleeve 211 is fixed on the inner wall of the radial flow shaft 21 , or is integrally formed with the radial flow shaft 21 . Both the radial flow shaft 21 and the snap ring sleeve 211 are made of elastic materials, and the radial flow shaft 21 and the snap ring sleeve 211 are opened so that the installation ring 23 can be installed into the radial flow shaft 21 and can be kept fixed.

In order to show the in-shape structure of the valve sheets 22 in detail, please refer to FIGS. 5 to 9 , the fixed ends 221 of the two valve sheets 22 are overlapped, and the extension directions of the free ends thereof are the same. In the forward flow state of the fluid, the free ends of the valve sheets 22 are superimposed and will not block the fluid. When the fluid flows in the reverse direction, the free ends of the valve flaps 22 are separated, blocking the flow of fluid. Play a one-way control of the fluid.

When the fluid flows in the opposite direction, please refer to FIG. 8 , the section of the free end of the valve sheet 22 can be set as an arc, the fluid enters the recess formed by the two arc-shaped free ends, and the reversed fluid reverses the two free ends. dynamic pressure. The free end of the compression valve sheet 22 is sealed against the inner wall of the radial flow channel 21, and plays the role of reverse blocking. Increase the response speed of the valve flap 22 for reverse flow cut-off.

Referring to FIG. 10 , this solution also provides a directional jet generating structure, including an elastic bladder 3 and the aforementioned fluid one-way control structure 2 . The elastic bladder cavity 3 includes an inlet end and an outlet end that communicate with the cavity. The fluid one-way control structure 2 is arranged at the inlet end. And the direction of the free end of the valve sheet 22 in the fluid one-way control structure 2 is in the cavity of the elastic bladder cavity 3 . The high-pressure fluid generated when the elastic bladder cavity 3 is kept in a force-contracted state can only be ejected through the outlet end to form a directional jet.

Referring to FIG. 11 , in order to improve the working effect of the elastic bag cavity 3 , one or more elastic rings 31 may be arranged on the inner wall of the elastic bag cavity 3 to abut against. When the number of the elastic rings 31 is two, the two elastic rings 31 can be kept perpendicular to each other. The elasticity of the elastic bladder cavity 3 is improved.

10 to 11, the solution also provides a drainage bag, including a bag body 4 and an interface end 1 connected by a hose 5, and the hose 5 is connected in series with the above-mentioned directional jet generating structure. In the implementation process, when the inner wall of the bag body 4 is adhered, the elastic bladder cavity 3 is pressed and a high-pressure fluid is generated in the elastic bladder cavity 3 . Due to the obstruction of the fluid one-way control structure 2 , the high-pressure fluid can only enter the bag body 4 through the outlet end of the elastic bladder cavity 3 , and pierce the adhered inner wall of the bag body 4 .

In order to save costs, the hose 5 is in detachable communication with the fluid one-way control structure 2 and the elastic bladder 3 in this solution, and can be connected when needed, and can be removed for use after the implementation.

As a complete application of this solution, please refer to FIGS. 1 to 11 . When the inner wall of the bag body 4 is adhered, the elastic bladder cavity 3 is pressed and a high-pressure fluid is generated in the elastic bladder cavity 3 . One or more pairs of valve flaps 22 are fixed inside the runoff passage 21 , and one end of the valve flaps 22 is a fixed end 221 , which is fixed to the inner wall of the runoff passage. The fixed ends 221 of the pair of valve flaps 22 are overlapped and sealed, and the directions of the free ends are the same. Then, the direction of the free ends relative to the fixed ends 221 is the unidirectional flow direction of the fluid unidirectional control structure 2 . The cross section of the radial flow tunnel 21 is set to be circular. Correspondingly, the valve piece 22 is set to be half of the ellipse. A pair of valve pieces 22 with fixed ends 221 connected to each other can seal the entire cross-section of the radial passageway 21 . The valve piece 22 is provided with a reinforcing rib 222 that diverges from the fixed end 221 to the free end, and under the condition of maintaining the elasticity of the valve piece 22, the deformation amount of the valve piece 22 under the overall stress condition is reduced. The sealing effect of the valve sheet 22 can be improved. The installation ring 23 is sealed and fixed to the inner wall of the radial flow channel 21 , and the valve sheet 22 is fixed to the installation ring 23 . The mounting ring 23 is fixed with a transverse rod 24, the transverse rod 24 is used for fixing the fixed end 221 of the valve sheet 22, the valve sheet 22 is mounted on the mounting ring 23, and the valve sheet 22 and the mounting ring 23 are integrally formed. The fixed ends 221 of the two flaps 22 are overlapped, and the extension directions of the free ends thereof are the same. In the forward flow state of the fluid, the free ends of the valve sheets 22 are superimposed and will not block the fluid. When the fluid flows in the reverse direction, the free ends of the valve flaps 22 are separated, blocking the flow of fluid. Play a one-way control of the fluid. The section of the free end of the valve sheet 22 can be set to be arc-shaped, the fluid enters the recess formed by the two arc-shaped free ends, and the reverse fluid generates reverse dynamic pressure on the two free ends. The free end of the compression valve sheet 22 is sealed against the inner wall of the radial flow channel 21, and plays the role of reverse blocking. Increase the response speed of the valve flap 22 for reverse flow cut-off. Therefore, the high-pressure fluid generated in the elastic bladder cavity 3 can only enter the bag body 4 through the outlet end of the elastic bladder cavity 3 to punch open the inner wall of the bag body 4 which is adhered. By generating a unidirectional jet, the problem of difficult separation caused by vacuum adsorption or adhesion on the inner wall of the drainage bag is solved.

The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details, nor do they limit the invention to only the described embodiments. For example, the number of the fluid one-way control mechanism 2 and the elastic bladder 3 in this solution is not limited to only one, and can be set according to the specific real-time state. As long as the above components are used to achieve the same technical effect, they belong to this solution. protected range. Obviously, many modifications and variations are possible in light of the contents of this specification. This specification selects and describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (10)

1. A fluid one-way control structure is characterized by comprising,

a runoff corridor; and the number of the first and second groups,

one end of each valve diaphragm is a fixed end and is directly or indirectly fixed to the inner wall of the runoff stack, and the other end of each valve diaphragm is a free end;

wherein the shape of the valve membrane is half of the inclined section of the runoff stack.

2. A fluid one-way control structure as claimed in claim 1 wherein a tangent line to any point of the radial or sloped cross-section circumferential edge of the run-off shaft is not intersected by the radial or sloped cross-section circumferential edge of the run-off shaft.

3. The fluid one-way control structure as claimed in claim 2, wherein the radial section inside the inner cavity of the runoff shaft is circular;

the flap sheet is semi-elliptical.

4. The fluid one-way control structure of claim 1, wherein the flap membrane is fixed to a mounting ring, and the mounting ring is hermetically fixed to an inner wall of the runoff stack.

5. The fluid one-way control structure of claim 4, wherein the inner diameter of the flow path is greater than or equal to the outer diameter of the mounting ring;

the inner wall of the runoff stack is further provided with a snap ring sleeve narrowed along the axial direction, and the inner diameter of the narrowest part of the snap ring sleeve is smaller than the outer diameter of the mounting ring.

6. The fluid unidirectional control structure of claim 4, wherein a cross bar is provided at a middle portion of the mounting ring, and a fixed end of the flap sheet is fixed to the cross bar.

7. The fluid unidirectional control structure of any one of claims 1 to 6, wherein a fixed end of the flap sheet is provided with a reinforcing rib extending to a free end.

8. A directed jet generating structure, comprising,

the elastic bag cavity comprises an inlet end and an outlet end which are communicated with the cavity body; and the number of the first and second groups,

a one-way fluid control structure as claimed in any one of claims 1 to 7, disposed at said inlet end;

wherein, the direction of the free end of the valve membrane sheet in the fluid one-way control structure is in the cavity of the elastic sac cavity.

9. A directional jet generating structure according to claim 8, wherein the elastic bladder cavity is provided with one or more elastic rings against which the inner wall abuts.

10. A drainage bag comprising a bag body and a connector which are connected by a hose, wherein the hose is connected in series with the directional jet generating structure of claim 8 or 9.

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