CN216692289U

CN216692289U - Novel one-way valve

Info

Publication number: CN216692289U
Application number: CN202220162857.3U
Authority: CN
Inventors: 李议建; 王光林
Original assignee: Zhejiang Rongkeduo Home Furnishing Co ltd
Current assignee: Zhejiang Rongkeduo Home Furnishing Co ltd
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-06-07
Anticipated expiration: 2032-01-20

Abstract

The utility model relates to a novel one-way valve, which comprises a one-way valve body, wherein the one-way valve body comprises a valve body, the valve body adopts a hollow structure and is provided with a fluid channel with an inlet and an outlet, a valve seat, a valve rod, a piston and a spring are arranged in the valve body of the hollow structure, the valve seat is provided with a valve rod mounting opening, one end of the valve rod is arranged on the valve rod mounting opening and can move along the valve rod mounting opening, the valve rod is sleeved with the spring, the other end of the valve rod is connected with the piston, the two ends of the spring are respectively abutted against the valve seat and the piston, and the one-way valve is characterized in that: a piston seat which is used for forming a sealing area by being in constant contact with a piston is arranged in the valve body, and a concave flow passage with the inner diameter larger than that of a fluid passage of the valve body is arranged in the valve body; the ratio of the inner diameter of the concave channel to the inner diameter of the valve body fluid channel is 1: 1.2-1.4; the valve body is integrally processed and formed. Through simple design, realized that the start-up response is fast, it is fast to intake, and the reliable intensity of structure is high, long service life, and the installation of also being convenient for is adjusted extensive applicability.

Description

Novel one-way valve

Technical Field

The utility model relates to a one-way valve, in particular to a novel one-way valve.

Background

The check valve is commonly called as a check valve, fluid can only flow along the water inlet, and the medium at the water outlet cannot flow back. Check valves are also known as check valves or check valves. For preventing reverse flow of oil in hydraulic systems or for preventing reverse flow of compressed air in pneumatic systems. The one-way valve has a straight-through type and a right-angle type. The straight-through one-way valve is installed on the pipeline by threaded connection.

The current check valve structure mainly is including disk seat, valve rod, piston and spring, utilizes the spring effort to push the spring all the time to the seal receptacle, prevents the condition of fluid reverse flow, but still exists the design unreasonablely in the current check valve structure, and the water capacity sets up unreasonablely, can appear leaking along with time uses.

The present invention is an improvement in view of the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel one-way valve, which solves the problems existing in the use process in the prior art.

The technical scheme of the utility model is realized as follows:

the utility model provides a novel check valve, including the check valve body, the check valve body includes the valve body, and the valve body adopts hollow structure, is formed with the fluid passage of import and export, installs disk seat, valve rod, piston and spring in hollow structure's the valve body, and the disk seat is opened there is the valve rod installing port, and valve rod one end is installed on the valve rod installing port, can be along the activity of valve rod installing port, and the cover has the spring on the valve rod, and the other end of valve rod is connected at the piston, and the both ends of spring are contradicted respectively on disk seat and piston, under the external pressure effect, its characterized in that: a piston seat which is used for forming a sealing area by being in constant contact with a piston is arranged in the valve body, and a concave flow passage with the inner diameter larger than that of a fluid passage of the valve body is arranged in the valve body; the ratio of the inner diameter of the concave channel to the inner diameter of the valve body fluid channel is 1: 1.2-1.4; the valve body is integrally formed.

According to the scheme, the check valve designed by the scheme has the characteristics of the check valve, and meanwhile, the inward concave flow channel in the valve body can ensure the pushing of the piston when the inlet fluid inflow pressure is greater than the outlet fluid pressure; the valve body is integrally processed and formed, and the risk of water leakage of the valve body is avoided.

Preferably, the inner wall of the valve body is processed into an internal thread structure, the outer end face of the piston seat is processed into an external thread structure, and the piston seat is connected into the valve body in a screwing mode.

According to the technical scheme, the piston seat module is designed and installed on the inner wall of the valve body in a threaded connection mode, so that the quick and convenient installation is realized, meanwhile, the installation can be adjusted according to conditions, specifically, the piston seat can be adjusted through rotating the position of the piston seat, and the distance between the pistons is ensured to be sealed.

Preferably, a sealing seat is installed on the piston seat, and the sealing seat is in surface contact with the piston when in contact.

According to the scheme, the sealing seat is additionally arranged, so that the leakage condition is prevented, and the reliability is improved.

Preferably, the piston is made of a copper sealing sheet.

Preferably, the valve rod is made of a stainless steel rod, and the valve rod is riveted with the piston.

According to the scheme, the service life is prolonged, the problem of stress concentration caused by the fact that the diameter size difference of the red punch is reduced is solved, the problem that the stress concentration caused by the fact that the diameter size difference of the existing piston and the piston rod are formed by the red punch is solved, and the piston rod is easy to bend.

Preferably, the sealing seat is provided with an inner notch, and the outer end face of the piston is provided with a contact corner which is in line contact with the edge end of the inner notch.

Preferably, the outer end face of the check valve is processed into a hexagonal structure.

According to the scheme, the one-way valve is convenient to mount.

Preferably, the outer end face of the one-way valve is also processed with a convex edge.

According to the scheme, the integral strength of the valve body of the one-way valve is increased, and the strength and the service life are guaranteed.

In conclusion, the beneficial effects of the utility model are as follows:

the check valve disclosed by the scheme has the advantages of simple structure, realization of quick start response, quick water inflow, reliable structure, high strength, long service life, convenience in installation and adjustment, and wide applicability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall construction of the check valve of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic plan view of the check valve of the present invention;

FIG. 4 is a partial cross-sectional view taken in the direction A-A of FIG. 3;

fig. 5 is a partially enlarged view of fig. 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 5 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1 to 5, the utility model discloses a novel check valve, which comprises a check valve body, wherein the check valve body comprises a valve body 1, the valve body 1 adopts a hollow structure and is provided with a fluid passage with an inlet 1-4 and an outlet 1-5, a valve seat 6, a valve rod 5, a piston 4 and a spring 8 are arranged in the hollow valve body, a valve rod mounting opening is arranged on the valve seat, one end of the valve rod 5 is arranged on the valve rod mounting opening, can move along the valve rod mounting opening, a spring 8 is sleeved on the valve rod, the other end of the valve rod is connected with a piston 4, two ends of the spring respectively abut against a valve seat and the piston, under the action of external pressure, the piston and the valve rod synchronously move upwards to compress the spring and open the channel, a piston seat 2 which is used for forming a sealing area by being in constant contact with the piston is arranged in the valve body, and a concave flow channel 7 with the inner diameter larger than that of a fluid channel of the valve body is arranged in the valve body; the ratio of the inner diameter of the concave channel 7 to the inner diameter of the valve body fluid channel is 1: 1.2-1.4; the valve body is integrally processed and formed.

The one-way valve designed by the scheme has the characteristics of the one-way valve, and meanwhile, the inward-concave flow channel 7 in the valve body can ensure that the piston can be pushed when the inlet fluid inflow pressure is greater than the outlet fluid pressure; the valve body is integrally processed and formed, and the risk of water leakage of the valve body is avoided. The check valve is exemplified by a G1/2 check valve with a 11.5 thread length and a 10 hex H26 height. But is not limited thereto. The product is tested by experiments: the pressure resistance test is 2.0MPa, and no leakage exists in 1 minute; the opening pressure is less than 0.01 MPa; no reflux under 0.1-0.6 MPa; the water passing areas under the full opening state are all larger than 171.9mm ^ 2.

The inner wall of the valve body is processed into an internal thread structure 1-3, the outer end face of the piston seat 2 is processed into an external thread structure, and the piston seat is connected into the valve body in a screwing mode. The piston seat module is designed and installed on the inner wall of the valve body in a threaded connection mode, so that quick and convenient installation is realized, and meanwhile, the piston seat can be adjusted according to conditions.

In addition, the piston seat is provided with a sealing seat 3, and the sealing seat is in surface contact with the piston when in contact.

The sealing seat is added to the scheme, so that the leakage condition is prevented, and the reliability is improved. In order to further realize quick start, an inner notch 3-1 is formed in the sealing seat, the outer end face of the piston is provided with a contact corner, and the contact corner is in line contact with the edge end of the inner notch 3-1, referring to fig. 5, the structure has the advantages that when fluid rushes upwards, namely the pressure of the inlet is greater than that of the outlet, the piston and the sealing seat can be opened, and through the additional arrangement of the inner notches, the fluid can quickly flow into the inner notch and be in line contact with the inner notch B, the fluid can quickly flow into the inner notch during the starting of the whole piston opening process and can drive the piston to move upwards, so that the effect of quick response is realized, and preferably, the length of the surface contact of the sealing seat and the piston is greater than the transverse width of the inner notch 3-1 when the sealing seat is in contact with the piston, so that the sealing can be ensured and the quick response can also be realized.

In order to prolong the service life of the product, the piston adopts a copper sealing sheet. The valve rod is made of a stainless steel bar, and the valve rod is riveted with the piston.

This scheme can reduce red diameter size difference and lead to appearing stress concentration problem, solves present piston and piston rod and adopts red towards the shaping, and product diameter size difference leads to appearing stress concentration problem greatly, and the piston rod easily takes place the bending.

The distance from the concave flow channel to the end face of the piston can be equal to the maximum height of the maximum opening state of the piston, and the flow is maximum.

For convenience of installation and use, the outer end face of the one-way valve is processed into a hexagonal structure 1-1. The outer end face of the one-way valve is also provided with a convex edge 1-2. The overall strength of the valve body of the one-way valve is increased, and the strength and the service life are ensured.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a novel check valve, including the check valve body, the check valve body includes the valve body, and the valve body adopts hollow structure, is formed with the fluid passage of import and export, installs disk seat, valve rod, piston and spring in hollow structure's the valve body, and the disk seat is opened there is the valve rod installing port, and valve rod one end is installed on the valve rod installing port, can be along the activity of valve rod installing port, and the cover has the spring on the valve rod, and the other end of valve rod is connected at the piston, and the both ends of spring are contradicted respectively on disk seat and piston, under the external pressure effect, its characterized in that: a piston seat which is used for forming a sealing area by being in constant contact with a piston is arranged in the valve body, and a concave flow passage with the inner diameter larger than that of a fluid passage of the valve body is arranged in the valve body; the ratio of the inner diameter of the concave channel to the inner diameter of the valve body fluid channel is 1: 1.2-1.4; the valve body is integrally processed and formed.

2. A novel one-way valve as defined in claim 1, wherein: the inner wall of the valve body is processed into an internal thread structure, the outer end face of the piston seat is processed into an external thread structure, and the piston seat is connected into the valve body in a screwing mode.

3. A novel one-way valve as defined in claim 1, wherein: the piston seat is provided with a sealing seat, and the sealing seat is in surface contact with the piston when in contact.

4. A novel one-way valve according to claim 3, wherein: the piston adopts copper sealing plate.

5. A novel one-way valve as defined in claim 4, wherein: the valve rod is made of stainless steel bars, and the valve rod is riveted with the piston.

6. A novel one-way valve as defined in claim 1, wherein: the sealing seat is provided with an inner notch, the outer end face of the piston is provided with a contact corner, and the contact corner is in line contact with the edge end of the inner notch.

7. The new type of check valve as claimed in any one of claims 1 to 6, wherein: the outer end face of the one-way valve is processed into a hexagonal structure.

8. A new type of non-return valve, according to any one of claims 1 to 7, characterized in that: the outer end surface of the one-way valve is also provided with a convex edge.