CN215334661U

CN215334661U - One-way valve

Info

Publication number: CN215334661U
Application number: CN202121297762.4U
Authority: CN
Inventors: 汪恺
Original assignee: Hangzhou Xiaoshan Yongchao Water Pump Co ltd
Current assignee: Hangzhou Xiaoshan Yongchao Water Pump Co ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-12-28
Anticipated expiration: 2031-06-10

Abstract

The utility model discloses a one-way valve which comprises a one-way valve body, wherein the one-way valve body comprises a valve seat and a valve core assembly, a circulation channel penetrating through the valve seat is arranged in the valve seat, abutting tables are respectively arranged at the end parts of the two opposite ends of the circulation channel, a filter screen is clamped on the abutting tables, connecting outer sleeves are respectively rotatably sleeved at the two opposite ends of the outer side wall of the valve seat, first clamping tables arranged along the circumferential direction of the outer side wall of the valve seat are respectively arranged at the end parts of the two opposite ends of the outer side wall of the valve seat, second clamping tables arranged along the circumferential direction of the connecting outer sleeves are arranged on the inner side wall of the connecting outer sleeve and close to the axis of the valve seat, the second clamping tables and the first clamping tables are mutually abutted, internal threads are also arranged on the inner side wall of the connecting outer sleeve, and the valve core assembly is arranged in the circulation channel. The utility model has reasonable structural design, can effectively prevent impurities from causing adverse effects on the valve core, and is favorable for market popularization and application.

Description

One-way valve

Technical Field

The utility model relates to the technical field of valves, in particular to a one-way valve.

Background

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. Check valves conventionally used in the prior art generally include a valve seat, a poppet, a bushing, a spring, a stem, a spring seat, a bushing, disposed between the poppet and the stem. When the check valve is opened or closed, the spool slides along the bushing, and the stem and the bushing serve to guide the spool. Because the clearance between case and the bush is less, arouse the case jamming easily when impurity gets into to impurity accelerates the wearing and tearing of case easily when using, thereby influences its result of use and life, consequently can't satisfy people's requirement.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides the check valve which is reasonable in structural design and can effectively prevent impurities from causing adverse effects on the valve core.

The utility model adopts the following technical scheme:

a one-way valve comprises a one-way valve body, the one-way valve body comprises a valve seat and a valve core component, a flow passage penetrating through the valve seat is arranged in the valve seat, the end parts of the two opposite ends of the flow passage are respectively provided with an annular abutting platform arranged along the circumferential direction of the inner side wall of the flow passage, the butt joint table is clamped with a filter screen, two opposite ends of the outer side wall of the valve seat are respectively rotatably sleeved with a connecting outer sleeve, the outer side wall of the valve seat is provided with first clamping tables arranged along the circumferential direction of the outer side wall of the valve seat at the positions corresponding to the inner parts of the connecting outer sleeves, a second clamping table arranged along the circumferential direction of the connecting outer sleeve is arranged on the inner side wall of the connecting outer sleeve and close to the axle center of the valve seat, the second clamping table and the first clamping table are mutually abutted, an inner side wall of the connecting outer sleeve is further provided with an internal thread, and the valve core assembly is arranged inside the circulation channel.

As a preferable technical proposal of the utility model, a first limit station and a second limit station are sequentially arranged on the inner side wall of the flow channel along the length direction of the inner side wall of the flow channel, the first limit table and the second limit table are both annular structures arranged along the circumferential direction of the inner side wall of the circulation channel, and one end of the inner side wall of the second limit table, which is far away from the first limit table, is provided with a circular arc sealing surface arranged along the circumferential direction of the inner side wall of the second limit table, the valve core component comprises a sealing valve ball which is abutted against the sealing surface, a connecting rod which is fixed on one side of the sealing valve ball, which is close to the first limit table, a limit plate which is fixed on one end of the connecting rod, which is far away from the sealing valve ball, and a spring which is sleeved on the connecting rod, the limiting plate is located between the first limiting table and the second limiting table, one end of the spring abuts against the limiting plate, and the other end of the spring abuts against the second limiting table.

In a preferred embodiment of the present invention, an elastic seal member is provided on the inner side wall of the seal surface along a circumferential direction of the inner side wall of the seal surface.

The utility model has the beneficial effects that:

the check valve is reasonable in structural design, the filter screens arranged at the two opposite ends of the flow channel can effectively filter impurities in the fluid, and can effectively prevent the impurities in the fluid from causing adverse effects on the valve core, so that the use effect and the service life of the check valve body are improved; the connection overcoat that sets up simultaneously makes the installation of check valve body convenient and fast more.

Drawings

FIG. 1 is a schematic structural view of a check valve body according to the present invention;

the symbols in the drawings illustrate that:

disk seat 1, circulation passageway 2, butt joint platform 3, filter screen 4 connects overcoat 5, first ka tai 6, second ka tai 7, first spacing platform 8, the spacing platform 9 of second, sealed face 10, sealed valve ball 11, connecting rod 12, limiting plate 13, spring 14, elastic sealing element 15.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings.

As shown in figure 1, the one-way valve comprises a one-way valve body, wherein the one-way valve body comprises a valve seat 1 and a valve core assembly, a circulation channel 2 penetrating through the valve seat 1 is arranged inside the valve seat 1, the end parts of the two opposite ends of the circulation channel 2 are respectively provided with an annular abutting table 3 arranged along the circumferential direction of the inner side wall of the circulation channel 2, a filter screen 4 is clamped on the abutting table 3, the two opposite ends of the outer side wall of the valve seat 1 are respectively rotatably sleeved with a connecting outer sleeve 5, the end parts of the two opposite ends of the outer side wall of the valve seat 1 corresponding to the position inside of the connecting outer sleeve 5 are respectively provided with a first clamping table 6 arranged along the circumferential direction of the outer side wall of the valve seat 1, the position on the inner side wall of the connecting outer sleeve 5 and close to the axis of the valve seat 1 is provided with a second clamping table 7 arranged along the circumferential direction of the connecting outer sleeve 5, and the second clamping table 7 is abutted to the first clamping table 6 during use, the inner side wall of the connecting outer sleeve 5 is also provided with internal threads for connecting with external equipment, namely when the connecting outer sleeve 5 is used, an external joint is butted with the butting table 3 at the corresponding end of the circulation channel (at the moment, the filter screen 4 is clamped between the corresponding butting table 3 and the external joint), and then the connecting outer sleeve 5 is rotated to lead the inner side wall of the connecting outer sleeve 6 to be screwed with the outer side wall of the joint; the valve core assembly is arranged inside the flow channel 2;

further, a first limit table 8 and a second limit table 9 are sequentially arranged on the inner side wall of the circulation channel 2 along the length direction of the inner side wall of the circulation channel 2, the first limit table 8 and the second limit table 9 are both of annular structures arranged along the circumferential direction of the inner side wall of the circulation channel 2, an arc-shaped sealing surface 10 arranged along the circumferential direction of the inner side wall of the second limit table 9 is arranged at one end, far away from the first limit table 8, of the inner side wall of the second limit table 9, the valve core assembly comprises a sealing valve ball 11 abutted against the sealing surface 10, a connecting rod 12 fixed on the sealing valve ball 11 and close to one side of the first limit table 8, a limit plate 13 fixed on the connecting rod 12 and far away from one end of the sealing valve ball 11, and a spring 14 sleeved on the connecting rod 12, specifically, the limit plate 13 is located at a position between the first limit table 8 and the second limit table 9, one end of the spring 14 abuts against the limiting plate 13, and the other end of the spring 14 abuts against the second limiting table 9; furthermore, an elastic sealing member 15 is disposed on the inner side wall of the sealing surface 10 along the circumferential direction of the inner side wall of the sealing surface 10. Specifically, the specific operation principle and operation process of the valve core assembly are well known to those skilled in the art, and therefore, detailed descriptions thereof are omitted.

Finally, it should be noted that: these embodiments are merely illustrative of the present invention and do not limit the scope of the present invention. In addition, other variations and modifications will be apparent to persons skilled in the art based on the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the utility model may be made without departing from the scope of the utility model.

Claims

1. The utility model provides a one-way valve, includes the one-way valve body, the one-way valve body includes disk seat (1) and case subassembly, disk seat (1) inside is equipped with and runs through flow channel (2) that set up in disk seat (1), its characterized in that: the flow channel is characterized in that the end parts of the two opposite ends of the flow channel (2) are respectively provided with an annular butt joint platform (3) arranged along the circumferential direction of the inner side wall of the flow channel (2), a filter screen (4) is clamped on the butt joint platform (3), the two opposite ends of the outer side wall of the valve seat (1) are respectively rotatably sleeved with a connecting outer sleeve (5), the end parts of the two opposite ends of the outer side wall of the valve seat (1) and corresponding to the position inside the connecting outer sleeve (5) are respectively provided with a first clamping platform (6) arranged along the circumferential direction of the outer side wall of the valve seat (1), the inner side wall of the connecting outer sleeve (5) and close to the axis of the valve seat (1) are respectively provided with a second clamping platform (7) arranged along the circumferential direction of the connecting outer sleeve (5), the second clamping platform (7) is mutually abutted against the first clamping platform (6), and the inner side wall of the connecting outer sleeve (5) is also provided with an internal thread, the valve core assembly is arranged inside the flow channel (2).

2. A one-way valve according to claim 1, wherein: a first limiting table (8) and a second limiting table (9) which are sequentially arranged along the length direction of the inner side wall of the circulation channel are arranged on the inner side wall of the circulation channel (2), the first limiting table (8) and the second limiting table (9) are annular structures which are arranged along the circumferential direction of the inner side wall of the circulation channel (2), a circular arc-shaped sealing surface (10) which is arranged along the circumferential direction of the inner side wall of the second limiting table (9) is arranged at one end, far away from the first limiting table (8), of the inner side wall of the second limiting table (9), the valve core assembly comprises a sealing valve ball (11) which is abutted against the sealing surface (10), a connecting rod (12) which is fixed on one side, close to the first limiting table (8), of the sealing valve ball (11), a limiting plate (13) which is fixed on the connecting rod (12) and far away from one end of the sealing valve ball (11), and a spring (14) which is sleeved on the connecting rod (12), limiting plate (13) are located the position department between first spacing platform (8) and second spacing platform (9), the one end butt of spring (14) is on limiting plate (13), the other end butt of spring (14) is on second spacing platform (9).

3. A one-way valve according to claim 2, wherein: and an elastic sealing element (15) arranged along the circumferential direction of the inner side wall of the sealing surface (10) is arranged on the inner side wall of the sealing surface (10).