CN208764391U - A kind of non-return control valve - Google Patents

Abstract

The utility model discloses a kind of non-return control valves, comprising: valve body, the valve body is interior to be equipped with valve chamber, and the valve chamber has the access road and exit passageway being connected；Ball valve core, the ball valve core are set in valve chamber, and the ball valve in-core is equipped with spherical cavity, and the spherical cavity has the first opening and the second opening being connected；Non-return component, the non-return component are set in spherical cavity, and the non-return component includes a fixes sleeve, are equipped with a guide rod, a compressed spring and a seal receptacle in the fixes sleeve.The inverse-stopping functions of check (non-return) valve are integrated on ball valve by the utility model, so that ball valve has inverse-stopping functions, it is no longer necessary to additionally concatenate check (non-return) valve after ball valve, reduce installation procedure, reduce manufacturing cost, and non-return effect is good.

Description

A kind of non-return control valve

Technical field

The utility model relates to valve technology fields, are specifically related to a kind of non-return control valve.

Background technique

Currently, ball valve is widely used in the control of valve, ball valve generally comprises a valve body, and a ball is provided in valve body Spool, valve body are equipped with a valve rod, can control ball valve core rotation by valve rod, and when ball valve core rotation can be intracorporal by valve Liquid barrier or release in flow path, but current ball valve is when in use, generally requires cooperation check (non-return) valve and uses, by check (non-return) valve string It connects in the rear end of ball valve, in this way, it is necessary to ball valve and check (non-return) valve be respectively set in flow path, installation is more troublesome, non-return effect Also bad, and need to make ball valve and check (non-return) valve respectively, manufacturing cost is higher.

Utility model content

For the above-mentioned problems in the prior art, it is desirable to provide a kind of non-return control valve, by the function collection of check (non-return) valve At on ball valve, i.e., ball valve has inverse-stopping functions, it is no longer necessary to additionally install check (non-return) valve, reduce installation procedure, reduce system This is caused, and non-return effect is good.

Specific technical solution is as follows:

A kind of non-return control valve, comprising:

Valve body, the valve body is interior to be equipped with valve chamber, and the valve chamber has the access road and exit passageway being connected；

Ball valve core, the ball valve core are set in the valve chamber, and the ball valve in-core is equipped with spherical cavity, and the spherical cavity, which has, to be connected Logical the first opening and the second opening；

Non-return component, the non-return component are set in the spherical cavity, and the non-return component includes a fixes sleeve, described Be equipped with a guide rod, a compressed spring and a seal receptacle in fixes sleeve, the both ends of the fixes sleeve respectively with the first opening and Second opening offsets fixation, and the fixes sleeve is equipped with a guide sleeve close to the first opening, and the guide rod, which is movably arranged on, leads Into set, the guide rod is connect far from one end of guide sleeve with seal receptacle, and the seal receptacle is located at the second opening, the sealing Seat is equipped with first annular groove, and the sealing ring for sealing the second opening is embedded in the first annular groove, described Compressed spring is set on guide sleeve, and one end and the guide sleeve of the compressed spring offset, the other end of the compressed spring with Seal receptacle offsets.

Preferably, the fixes sleeve is inverted cone-shaped structure close to the second opening.

Preferably, the seal receptacle offers cone tank close to the center of the second opening.

Preferably, the guide sleeve is equipped with first boss, and the seal receptacle is equipped with second boss, the compressed spring It is fastened in the groove that first boss and second boss are formed.

Preferably, the ball valve core is equipped with annular spacing groove close to the first opening, is embedded in the annular spacing groove Annular stop retainer ring.

Preferably, the fixes sleeve offers second annular groove on the outer wall of the second opening, and described second The second sealing ring is embedded in annular groove.

The good effect of above-mentioned technical proposal is:

The ball valve of the utility model is serially connected in fluid circuit, and when ball valve is opened, liquid flows into valve body from access road When, liquid opens seal receptacle from the second opening of ball valve core, and the second opening of ball valve core is opened at this time, and liquid can be normal Ball valve core is flowed through then to flow out from exit passageway；And when reverse flow occurs for liquid, liquid is flowed into ball valve from exit passageway In-core is at this time pressed against seal receptacle in the second opening of ball valve core due to compressed spring, so that the second opening quilt of ball valve core Closing, moreover, seal receptacle and the inverted cone-shaped structure of fixes sleeve offset at this time, is more towards the side of compressed spring top seal receptacle power Make power to seal receptacle, the first sealing ring on seal receptacle is pressed tighter, and the leakproofness of seal receptacle is better, in this way, inversely The liquid of flowing can not just play the role of non-return from the second opening outflow of ball valve core.In this way, by the inverse-stopping functions collection of check (non-return) valve At in ball valve, so that ball valve has inverse-stopping functions, it is no longer necessary to additionally concatenate check (non-return) valve after ball valve, reduce erector Sequence reduces manufacturing cost, and non-return effect is good.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the structural schematic diagram of the non-return component in the utility model.

In attached drawing, 1, valve body；11, valve chamber；12, access road；13, exit passageway；14, valve rod；2, ball valve core；21, ball Chamber；22, the first opening；23, the second opening；24, annular spacing groove；25, annular stop retainer ring；3, non-return component；31, fixing sleeve Cylinder；311, inverted cone-shaped structure；312, second annular groove；313, the second sealing ring；32, guide rod；33, compressed spring；34, it seals Seat；341, first annular groove；342, the first sealing ring；343, cone tank；344, second boss；35, guide sleeve；351, first Boss.

Specific embodiment

In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, with Lower embodiment combination attached drawing is specifically addressed to provided by the utility model.

Incorporated by reference to Fig. 1 to Fig. 2, a kind of non-return control valve, including valve body 1, ball valve core 2 and non-return component 3 are shown.

Valve chamber 11 is equipped in the valve body 1, valve chamber 11 has the access road 12 and exit passageway 13 being connected.

The ball valve core 2 is set in valve chamber 11, which is equipped with spherical cavity 21, and spherical cavity 21 has be connected first to open Mouth 22 and the second opening 23.

Valve body 1 is equipped with a valve rod 14, and ball valve core 2 can be driven to rotate by valve rod 14, when ball valve core 2 rotates, ball Spool 2 can make access road 12 and exit passageway 13 be connected or be blocked.

The non-return component 3 is set in spherical cavity 21, specifically, non-return component 3 include a fixes sleeve 31, a guide rod 32, One compressed spring 33 and a seal receptacle 34, wherein guide rod 32, compressed spring 33 and seal receptacle 34 are arranged at fixes sleeve 31 It is interior.The both ends of fixes sleeve 31 are respectively with the fixation that offsets at the first opening 22 and the second opening 23, i.e., fixed by fixes sleeve 31 It is mounted in the spherical cavity 21 of ball valve core 2.Fixes sleeve 31 is equipped with a guide sleeve 35 at the first opening 22, and guide sleeve 35 is located at The center of fixes sleeve 31, guide sleeve 35 are connect by connecting rod with fixes sleeve 31, and guide sleeve 35 is not complete by the first opening 22 At covering, liquid is allow to flow freely over the first opening 22.Guide rod 32 is movably arranged in guide sleeve 35, guide rod 32 and guide sleeve 35 are coaxially set, and guide rod 32 can slide axially along guide sleeve 35, and the one end of guide rod 32 far from guide sleeve 35 and seal receptacle 34 connect It connects, seal receptacle 34 is located at the second opening 23, can be an integral molding structure, can also pass through between seal receptacle 34 and guide rod 32 Conventional connection means connection, is such as threadedly coupled.Compressed spring 33 is set on guide sleeve 35, one end of compressed spring 33 and guiding Set 35 offsets, and the other end and the seal receptacle 34 of compressed spring 33 offset, that is to say, that compressed spring 33 pushes up seal receptacle 34 to ball Second opening 23 of spool 2, is covered on seal receptacle 34 in second opening 23.Fixes sleeve 31 is fallen at the second opening 23 Pyramidal structure 311, when seal receptacle 34 is covered in the second opening 23, seal receptacle 34 offsets with inverted cone-shaped structure 311, towards compression Spring 33 pushes up the direction of 34 power of seal receptacle, and the opening of the end of the second opening 23 becomes smaller, and the first ring is arranged on seal receptacle 34 Connected in star 341 is embedded with when offseting for seal receptacle 34 and inverted cone-shaped structure 311 in first annular groove 341 and plays sealing and make First sealing ring 342, the direction for being more towards the top of compressed spring 33 34 power of seal receptacle make power, seal receptacle 34 to seal receptacle 34 Leakproofness between inverted cone-shaped structure 311 is better, also just plays non-return effect, prevents from flowing backwards.

When liquid forward flow, i.e., when liquid flows into valve body 1 from access road 12, liquid is by seal receptacle 34 from ball valve core It is opened in 2 the second opening 23, compressed spring 33 is compressed at this time, and the second opening 23 of ball valve core 2 is opened at this time, and liquid can be with Ball valve core 2 is normally flowed through then to flow out from exit passageway 13；And when reverse flow occurs for liquid, liquid is flowed from exit passageway 13 Enter into ball valve core 2, is at this time pressed against seal receptacle 34 in second opening 23 of ball valve core 2 due to compressed spring 33, so that ball Second opening 23 of spool 2 is closed, moreover, seal receptacle 34 and the inverted cone-shaped structure 311 of fixes sleeve 31 offset at this time, The direction for pushing up 34 power of seal receptacle towards compressed spring 33 makes power to seal receptacle 34, and the first sealing ring 342 on seal receptacle 34 is pressed Must be tighter, the leakproofness of seal receptacle 34 is better, in this way, the liquid of reverse flow just can not be from the second opening 23 of ball valve core 2 Outflow, plays the role of non-return.

Moreover, cone tank 343 is offered at center of the seal receptacle 34 at the second opening 23, in conjunction with access road 12 Taper structure design, this section of channel of the cone tank 343 of entire access road 12 to seal receptacle 34 is what entrance was gradually reduced Channel when liquid enters ball valve core 2, can open seal receptacle 34 with the smallest pressure, open the second opening 23, logical from outlet It flows out in road 13.

In addition, guide sleeve 35 is equipped with first boss 351, seal receptacle 34 is equipped with second boss 344, and compressed spring 33 is just It is fastened in the groove that first boss 351 and second boss 344 are formed, the effect of boss is i.e. for the limit to compressed spring 33 Position guarantees the reaction force of compressed spring 33.

Ball valve core 2 is equipped with annular spacing groove 24 at the first opening 22, is embedded with annular stop in annular spacing groove 24 Retainer ring 25, this annular stop retainer ring 25 offset with fixes sleeve 31, limit the axial location and axis shift of non-return component 3, Non-return component 3 is fixed in the spherical cavity 21 of ball valve core 2.

Fixes sleeve 31 offers second annular groove 312, second annular groove on the outer wall at the second opening 23 The second sealing ring 313 is embedded in 312 prevents liquid from fixing sleeve so that fixes sleeve 31 is completely embedded with 21 inner wall of spherical cavity It is flowed between gap between cylinder 31 and spherical cavity 21.

The above is only the utility model preferred embodiments, are not intended to limit the embodiments of the present invention and protection Range should can appreciate that all with the utility model specification and diagramatic content institute to those skilled in the art The equivalent replacement made and obviously change obtained scheme, the protection scope of the utility model should all be included in It is interior.

Claims (6)

1. a kind of non-return control valve characterized by comprising

Valve body (1) is equipped with valve chamber (11) in the valve body (1), the valve chamber (11) have the access road (12) being connected and Exit passageway (13)；

Ball valve core (2), the ball valve core (2) are set in the valve chamber (11), are equipped with spherical cavity (21) in the ball valve core (2), institute Stating spherical cavity (21) has the first opening (22) and the second opening (23) being connected；

Non-return component (3), the non-return component (3) are set in the spherical cavity (21), and the non-return component (3) includes one fixed Sleeve (31), the fixes sleeve (31) is interior equipped with a guide rod (32), a compressed spring (33) and a seal receptacle (34), described solid Fixation that the both ends for determining sleeve (31) are open (22) with first respectively and the second opening (23) offsets, the fixes sleeve (31) are close A guide sleeve (35) are equipped at first opening (22), the guide rod (32) is movably arranged in guide sleeve (35), the guide rod (32) one end far from guide sleeve (35) is connect with seal receptacle (34), and the seal receptacle (34) is located at the second opening (23), institute Seal receptacle (34) are stated equipped with first annular groove (341), the first annular groove (341) is interior to be embedded with for opening second The first sealing ring (342) of mouth (23) sealing, the compressed spring (33) are set on guide sleeve (35), the compressed spring (33) one end offsets with guide sleeve (35), and the other end and the seal receptacle (34) of the compressed spring (33) offset.

2. a kind of non-return control valve according to claim 1, which is characterized in that the fixes sleeve (31) is opened close to second It is at mouth (23) inverted cone-shaped structure (311).

3. a kind of non-return control valve according to claim 1, which is characterized in that the seal receptacle (34) is close to the second opening (23) center at offers cone tank (343).

4. a kind of non-return control valve according to claim 1, which is characterized in that it is convex that the guide sleeve (35) is equipped with first Platform (351), the seal receptacle (34) are equipped with second boss (344), and the compressed spring (33) is fastened on first boss (351) In the groove formed with second boss (344).

5. a kind of non-return control valve according to claim 1, which is characterized in that the ball valve core (2) is close to the first opening (22) annular spacing groove (24) are equipped at, are embedded with annular stop retainer ring (25) in the annular spacing groove (24).

6. a kind of non-return control valve according to claim 1, which is characterized in that the fixes sleeve (31) is opened close to second It is offered second annular groove (312) on outer wall at mouth (23), is embedded with the second sealing in the second annular groove (312) It encloses (313).