CN211423405U

CN211423405U - Control valve with good sealing performance

Info

Publication number: CN211423405U
Application number: CN201921759008.0U
Authority: CN
Inventors: 王志俊; 孙赫; 李庆; 陆在奇; 徐永祥; 石峰; 周丽敏; 戴刘微
Original assignee: Shanghai Taopu Fluid Technology Co ltd
Current assignee: Shanghai Taopu Fluid Technology Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-09-04
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses a control flap that leakproofness is good, including valve body, valve rod, case and sealing washer, the valve body comprises valve rod and case, and valve rod and case welded connection, the valve body of case excircle department is fixed bonding on inside has the sealing washer, and the case laminates with the sealing washer mutually to the surperficial vertical welding of case has connected the horizontal pole, the horizontal pole offsets with sealed post and closes, and sealed post forms the recess towards case side surface to the opposite side surface of sealed post is connected with the sealing ring through elastic spring, the excircle of sealing ring and the inner wall welded connection of valve body, sealed post bonds to sealing ring side surface mounting and has the sealing plug. This control valve that leakproofness is good is provided with sealing washer, sealing ring and sealed post, can form the design of double seal structure, even the sealing washer appears ageing, does not influence the holistic leakproofness of valve body yet, and the leakproofness is good.

Description

Control valve with good sealing performance

Technical Field

The utility model relates to the technical field of valves, specifically be a control flap that leakproofness is good.

Background

The sealing device comprises a valve body, a valve core, a valve body, a sealing ring, a valve core, a valve body and a sealing ring, wherein the valve core is arranged on the valve body, the sealing ring is arranged on the valve body, the valve core is arranged on the valve body, the sealing ring is arranged on the valve core, the sealing ring is connected with the valve core through a sealing ring, the sealing ring is extruded by the valve core, the sealing ring is subjected to aging deformation, and can not be tightly attached to the valve core, so that a gap exists between the sealing ring and the valve core, the sealing performance is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a control flap that leakproofness is good to the sealing washer that proposes in solving above-mentioned background art receives the case extrusion for a long time, and self can take place ageing deformation, and then can not closely laminate with the case, leads to existence clearance between them, the poor problem of leakproofness.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a control flap that leakproofness is good, includes valve body, valve rod, case and sealing washer, the valve body comprises valve rod and case, and valve rod and case welded connection, fixed bonding has the sealing washer on the valve body inside of case excircle department, and the case laminates with the sealing washer mutually to the perpendicular welded connection in surface of case has the horizontal pole, the horizontal pole offsets with sealed post, and sealed post forms the recess towards case side surface to the opposite side surface of sealed post is connected with the sealing ring through the elasticity spring, the excircle of sealing ring and the inner wall welded connection of valve body, sealed post has the sealing plug towards sealing ring one side fixed surface bonding, and inserts in the interior circle of sealing ring, be welded connection between elasticity spring both ends and sealing ring and the sealed post.

Preferably, the number of the cross rods is 2, and the distance between the 2 cross rods is larger than the diameter of the groove and smaller than the diameter of the sealing column.

Preferably, the sealing ring is of a circular ring-shaped structure, and the inner circle diameter of the sealing ring is as long as the diameter of the sealing plug.

Preferably, the sealing column and the sealing plug are both cylindrical structures, the sealing plug is made of rubber, and the diameter of the sealing column is smaller than the outer diameter of the sealing ring.

Preferably, the whole groove is of a bowl-shaped structure, the cross section of the groove is arc-shaped, and the groove and the sealing column are coaxial.

Compared with the prior art, the beneficial effects of the utility model are that: the control valve with good sealing performance is provided with the sealing ring, when the sealing ring is tightly attached to the valve core, a first sealing structure can be formed, the control valve is provided with the cross rod, the sealing ring and the sealing column, the cross rod and the valve core are of an integrated structure, when the valve core is in a closed state, the cross rod can extrude the sealing column to enable the sealing column and the sealing ring to be in a sealing state, and therefore the sealing ring and the sealing column form a second sealing structure, and even if the sealing ring is aged, the overall sealing performance of the valve body is not affected, and the sealing performance is good due to the double;

when the case was opened, the horizontal pole along with rotate and with sealed post separation, sealed post and sealing ring separation like this, the medium in the valve body will flow through the sealing ring to realize opening of valve body, and then the setting of sealed post and sealing ring does not influence the normal use of valve body, the practicality is strong.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of a cross-sectional structure of the valve core in a downward view in a closed state of the valve core of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the valve core in an open state;

fig. 4 is a schematic structural view of the sealing ring, the sealing post and the sealing plug of the present invention;

fig. 5 is a schematic structural view of the valve core and the cross rod of the present invention.

In the figure: 1. a valve body; 2. a valve stem; 3. a valve core; 4. a seal ring; 5. a cross bar; 6. a seal ring; 7. Sealing the column; 8. a sealing plug; 9. an elastic spring; 10. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a control valve with good sealing performance comprises a valve body 1, a valve rod 2, a valve core 3 and a sealing ring 4, wherein the valve body 1 consists of the valve rod 2 and the valve core 3, the valve rod 2 is welded with the valve core 3, a sealing ring 4 is fixedly bonded on the inner part of the valve body 1 at the outer circle of the valve core 3, the valve core 3 is jointed with the sealing ring 4, and the surface of the valve core 3 is vertically welded and connected with a cross rod 5, the cross rod 5 is abutted against a sealing column 7, a groove 10 is formed on the surface of one side of the sealing column 7 facing the valve core 3, the other side surface of the sealing column 7 is connected with the sealing ring 6 through an elastic spring 9, the excircle of the sealing ring 6 is welded with the inner wall of the valve body 1, the sealing plug 8 is fixedly bonded on the surface of one side of the sealing column 7 facing the sealing ring 6, and the sealing plug 8 is inserted into the inner circle of the sealing ring 6, and both ends of the elastic spring 9 are connected with the sealing ring 6 and the sealing column 7 in a welding way.

Cross pole 5 is provided with 2 about 3 symmetries of case, and the interval between 2 cross poles 5 is greater than the diameter of recess 10, and be less than the diameter of sealed post 7, like this when case 3 is in the closed condition, it can drive cross pole 5 and remove to sealed post 7 direction, and the interval design between 2 cross poles 5, make cross pole 5 can just in time support on the sealed post 7 wall body of recess 10 excircle department, just so can extrude sealed post 7, make sealing plug 8 on the sealed post 7 insert to in the sealing ring 6, rational in infrastructure.

Sealing ring 6 is the ring form structure, and the interior circle footpath of sealing ring 6 is long unanimous with sealing plug 8's diameter, like this after sealing ring 6 and sealed post 7 separation, the medium can flow in sealing ring 6's interior circle, valve body 1 is in when the state of opening like this, sealing ring 6's setting can not influence valve body 1's normal operating, when sealing plug 8 inserts to sealing ring 6's interior circle in, sealing plug 8 can closely laminate with sealing ring 6's interior circle, from what form seal structure between the two, the seal structure of cooperation case 3 and sealing washer 4 formation, can make up into double seal, the leakproofness of valve body 1 has been improved.

Sealing post 7 and sealing plug 8 all are cylindrical structure, and sealing plug 8 is the rubber material, and sealing post 7's diameter is less than sealing ring 6's external diameter, sealing plug 8's structural design for it inserts back in the sealing ring 6, and the leakproofness between the two is good, and 7 structural design of sealing post makes it can not shelter from sealing ring 6, can not obstruct the flow of medium.

The whole groove 10 is of a bowl-shaped structure, the cross section of the groove 10 is arc-shaped, the groove 10 and the sealing column 7 are coaxial, when the valve core 3 is in an opening state, the cross rod 5 is separated from the sealing column 7, so that the elastic spring 9 between the sealing ring 6 and the sealing column 7 is restored to be of a natural length from a compressed state, the sealing column 7 is driven to move towards the valve core 3, the sealing plug 8 moves synchronously along with the sealing column 7 and moves out of the inner circle of the sealing ring 6, when the valve core 3 moves to be attached to the sealing column 7, the part, attached to the sealing column 7, of the valve core 3 can be embedded into the groove 10, the sealing column 7 cannot be extruded by the valve core 3 to be attached to the sealing ring 6, and therefore, the sealing column 7 and the sealing ring 6 are in an opening state, and a medium can.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a good control flap of leakproofness, includes valve body (1), valve rod (2), case (3) and sealing washer (4), its characterized in that: the valve body (1) consists of a valve rod (2) and a valve core (3), the valve rod (2) is connected with the valve core (3) in a welding mode, a sealing ring (4) is fixedly bonded on the inner portion of the valve body (1) at the outer circle position of the valve core (3), the valve core (3) is attached to the sealing ring (4), a cross rod (5) is perpendicularly welded and connected to the surface of the valve core (3), the cross rod (5) is abutted to a sealing column (7), a groove (10) is formed on the surface of one side, facing the valve core (3), of the sealing column (7), the surface of the other side of the sealing column (7) is connected with the sealing ring (6) through an elastic spring (9), the outer circle of the sealing ring (6) is connected with the inner wall of the valve body (1) in a welding mode, a sealing plug (8) is fixedly bonded on the surface of one side, facing the sealing ring (6), of the sealing column (, and both ends of the elastic spring (9) are connected with the sealing ring (6) and the sealing column (7) in a welding manner.

2. A control valve with good sealing performance as claimed in claim 1, wherein: the number of the cross rods (5) is 2, and the distance between the 2 cross rods (5) is larger than the diameter of the groove (10) and smaller than the diameter of the sealing column (7).

3. A control valve with good sealing performance as claimed in claim 1, wherein: the sealing ring (6) is of a circular ring-shaped structure, and the inner circle diameter length of the sealing ring (6) is consistent with the diameter of the sealing plug (8).

4. A control valve with good sealing performance as claimed in claim 1, wherein: sealing post (7) and sealing plug (8) all are cylindrical structure, and sealing plug (8) are the rubber material, and the diameter of sealing post (7) is less than the external diameter of sealing ring (6).

5. A control valve with good sealing performance as claimed in claim 1, wherein: the whole groove (10) is in a bowl-shaped structure, the cross section of the groove (10) is in a circular arc shape, and the groove (10) and the sealing column (7) are coaxial.