CN210088077U - One-way valve - Google Patents

Abstract

The utility model discloses a check valve, including tubulose valve body and case, case fixed connection is in the tubulose valve body, the case includes straightway, bend section and stopper, the straightway is connected with the bend section, and the bend section is connected with the stopper, and whole case is made by soft materials, and under the natural state, the lower edge of stopper seals tubulose valve body lower extreme opening, during the stopper atress, its bend section takes place deformation and tensile for the stopper is followed down and is separated with tubulose valve body lower extreme opening. The utility model discloses can realize the single-phase of communicating pipe and switch on, simple structure, convenient to use, manufacturing cost is cheap.

Description

One-way valve

Technical Field

The utility model relates to a check valve belongs to valve technical field.

Background

In the prior art, the check valve is usually an electronic valve, and single-phase conduction is realized in an electronic control mode, however, the requirement on the sealing performance of the application occasions of some conduction pipes is not high, the cost of using the electronic check valve is high, the diameter of some conduction pipes is small, and the electronic check valve cannot be applied to inconvenient installation.

Disclosure of Invention

The utility model aims at providing a check valve, simple structure, convenient to use, low cost.

The technical solution of the utility model is that: the utility model provides a check valve, includes tubulose valve body and case, case fixed connection is in the tubulose valve body, the case includes straightway, bending section and stopper, the straightway is connected with the bending section, and the bending section is connected with the stopper, and whole case is made by soft materials, and under the natural condition, the lower edge of stopper seals tubulose valve body lower extreme opening, when the stopper atress, its bending section takes place to deform and stretch for the stopper is followed and is separated with tubulose valve body lower extreme opening down.

Further, the check valve described above, wherein: the valve core is made of rubber materials or silica gel materials.

Further, the check valve described above, wherein: the hollow inner tubular valve body is arranged in the tubular valve body, a conical protrusion is formed on the straight line section of the valve core, and the straight line section and the protrusion of the valve core penetrate through the inner tubular valve body from bottom to top, so that the bottom of the protrusion is supported on the upper edge of the inner tubular valve body.

Further, the check valve described above, wherein: the inner tubular valve body is fixedly connected to the inner wall of the tubular valve body through a connecting support.

Further, the check valve described above, wherein: the cross section area of the plug is gradually reduced from bottom to top, and the cross section of the plug is circular.

Further, the check valve described above, wherein: a stepped portion is formed on an outer circumferential surface of the stopper.

Further, the check valve described above, wherein: the bottom of the tubular valve body extends downwards along the peripheral surface to form an extension part, and the lower edge of the plug is positioned in the extension part.

Still further, the check valve described above, wherein: the plug bottom protrusion.

Still further, the check valve described above, wherein: the bending section is of an S-shaped structure formed by connecting two sections of curves.

Still further, the check valve described above, wherein: the outer wall of the tubular valve body is provided with a tubular valve body bulge.

The utility model discloses outstanding technological effect mainly embodies: the utility model can realize the single-phase conduction of the communicating pipe, has simple structure, convenient use and lower manufacturing cost; just the utility model discloses it is all very convenient to assemble, dismantle and change.

Drawings

FIG. 1 is a schematic view of a check valve construction;

FIG. 2 is a schematic bottom view of the tubular valve body;

FIG. 3 is a schematic view of a valve cartridge;

fig. 4 is a schematic view of the connection of the single-phase valve to the communicating pipe.

In the figures, the reference numerals have the meaning: 1-tubular valve body, 11-tubular valve body arch, 12-extension, 2-interior tubular valve body, 3-linking bridge, 4-case, 41-straightway, 42-arch, 43-bending section, 44-stopper, 441-step portion, 45-bulge, 5-communicating pipe.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.

As shown in fig. 1, the utility model discloses check valve includes tubulose valve body 1 and case 4, and case 4 fixed connection is in tubulose valve body 1, and case 4 includes straightway 41, bending section 43 and stopper 44, and straightway 41 lower extreme is connected with bending section 43 upper end, and bending section 43 lower extreme is connected with stopper 44 upper end, and the cross sectional area of stopper 44 reduces step by step from bottom to top, and whole case 4 is made by soft materials, for example, can adopt rubber materials or silica gel material. In a natural state, the lower edge of the plug 44 closes the lower end opening of the tubular valve body 1, and when the plug 44 is stressed, the bending section 43 of the plug is deformed and stretched, so that the lower edge of the plug 44 is separated from the lower end opening of the tubular valve body 11.

Specifically, as shown in fig. 1 to 3, the outer wall of the tubular valve body 1 is provided with a tubular valve body protrusion 11, the inner wall of the tubular valve body 1 is provided with a connecting support 3, the tubular valve body 1 is internally provided with an inner tubular valve body 2, the inner tubular valve body 2 is connected with the tubular valve body 1 through the connecting support 3, a tapered protrusion 42 is formed on a linear section 41 of the valve core 4, and the linear section 41 and the protrusion 42 of the valve core 4 penetrate through the inner tubular valve body 2 from bottom to top, so that the bottom of the protrusion 42 is supported on the upper edge of the inner tubular valve body 2, and the valve core 4 is not separated from the.

Specifically, as shown in fig. 3, the plug 44 has a circular cross section, and a stepped portion 441 is formed on the outer circumferential surface of the plug 44 to facilitate the force application of the plug 44. The bottom of the tubular valve body 1 extends downward along the outer peripheral surface to form an extension 12, and the lower edge of the plug 44 is located in the extension 12. The bottom protrusion 45 of the plug 44 can extend the bent section 43 by pulling the protrusion 45, and the protrusion 42 on the straight section 41 can be separated from the inner tubular valve body 2 by continuously applying force, so that the whole valve core 4 is pulled out, and the valve core 4 can be replaced.

It should be noted here that the curved section 43 in fig. 3 is an "S" shaped structure formed by connecting two curves, which is only a preferred embodiment, and the curved section 43 may also be formed by directly forming one curve or connecting three or more curves.

The utility model discloses application method as follows: as shown in fig. 4, the utility model discloses a 1 outer wall interference of tubulose valve body is connected in communicating pipe 5 inner wall, the plug the utility model discloses it is all very convenient, the protruding 11 of tubulose valve body 1 is located the lower edge of communicating pipe 5, when communicating pipe 5 leads to water or ventilates, water or gas are followed to tubulose valve body 1 down along 2 and until contact with stopper 44 on the tubulose valve body 1 to the stopper 44 application of force, because stopper 44 is made by soft materials, behind the stopper 44 atress, its bending section 42 deformation is tensile, make the lower extreme opening separation of stopper 44 and tubulose valve body 1, form and switch on. If the check valve is subjected to reverse force, only the plug body 44 is pressed, and the plug 44 and the lower end opening of the tubular valve body 1 are closed more tightly, so that single-phase conduction is realized. The utility model discloses during the installation, can directly draw straightway 41 upper end of case 4 from 1 upper end opening of tubulose valve body, pass inner tubular valve body 2 completely to arch 42 on straightway 41 and support and follow on inner tubular valve body 2, long-term the use back, the accessible draws the bellying 45 of dragging the stopper 44 lower extreme, pulls out stopper 44, then holds between the fingers stopper 44 and lasts the application of force, separates with inner tubular valve body 2 until arch 42 on straightway 41, changes case 4.

As can be seen from the above description, the utility model can realize single-phase conduction, and the utility model is connected with the communicating pipe, can realize single-phase ventilation or single-phase circulation of liquid through the communicating pipe, and has simple structure, convenient use and lower manufacturing cost; just the utility model discloses easily the equipment just is convenient for change.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims (10)

1. A one-way valve characterized by: the valve core is fixedly connected in the tubular valve body and comprises a straight line section, a bending section and a plug, the straight line section is connected with the bending section, the bending section is connected with the plug, the whole valve core is made of soft materials, the lower edge of the plug seals the lower end opening of the tubular valve body in a natural state, and when the plug is stressed, the bending section of the plug deforms and stretches, so that the lower edge of the plug is separated from the lower end opening of the tubular valve body.

2. The one-way valve of claim 1, wherein: the valve core is made of rubber materials or silica gel materials.

3. The one-way valve of claim 1, wherein: the hollow inner tubular valve body is arranged in the tubular valve body, a conical protrusion is formed on the straight line section of the valve core, and the straight line section and the protrusion of the valve core penetrate through the inner tubular valve body from bottom to top, so that the bottom of the protrusion is supported on the upper edge of the inner tubular valve body.

4. The one-way valve of claim 3, wherein: the inner tubular valve body is fixedly connected to the inner wall of the tubular valve body through a connecting support.

5. The one-way valve of claim 1, wherein: the cross section area of the plug is gradually reduced from bottom to top, and the cross section of the plug is circular.

6. The one-way valve of claim 1, wherein: a stepped portion is formed on an outer circumferential surface of the stopper.

7. The one-way valve of claim 1, wherein: the bottom of the tubular valve body extends downwards along the peripheral surface to form an extension part, and the lower edge of the plug is positioned in the extension part.

8. The one-way valve of claim 1, wherein: the plug bottom protrusion.

9. The one-way valve of claim 1, wherein: the bending section is of an S-shaped structure formed by connecting two sections of curves.

10. The one-way valve of claim 1, wherein: the outer wall of the tubular valve body is provided with a tubular valve body bulge.

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