CN205036884U - Two -way ball valve sealed firmly of bivalve seat - Google Patents

Two -way ball valve sealed firmly of bivalve seat Download PDF

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Publication number
CN205036884U
CN205036884U CN201520783585.9U CN201520783585U CN205036884U CN 205036884 U CN205036884 U CN 205036884U CN 201520783585 U CN201520783585 U CN 201520783585U CN 205036884 U CN205036884 U CN 205036884U
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CN
China
Prior art keywords
valve
disk seat
seat
spheroid
valve body
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Active
Application number
CN201520783585.9U
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Chinese (zh)
Inventor
张志荣
王林丰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangshan Zhicheng Valve Co Ltd
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Jiangshan Zhicheng Valve Co Ltd
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Priority to CN201520783585.9U priority Critical patent/CN205036884U/en
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Abstract

The utility model provides a two -way ball valve sealed firmly of bivalve seat relates to valve technical field. It includes valve body and spheroid, and the valve body is equipped with a pair of disk seat, and the disk seat is the tubulose appearance and is the rotary -table, and disk seat wall connection has c -shaped spring and belleville spring, and c -shaped spring and belleville spring are connected with the valve body, disk seat tip and ball sealing cooperation. The utility model provides a prior art two way seal valve holder structure complicated, make the inconvenient technical problem of installation. The utility model discloses beneficial effect does: a pair of disk seat is sealed vice to the spheroiding, and both sides pre compressed spring exerts pressure simultaneously on the valve body, and sealed face is sealed simultaneously around forcing, has improved two -way sealing performance. Disk seat terminal surface and spheroid adoption face seal form guarantee that the two way seal is reliable. Spheroid and disk seat adopt metal -to -metal sealing method, prevent effectively in the medium that the granule is to the destruction of sealed face, long service life. Compact structure, the convenient manufacturing and the installation.

Description

A kind of double-valve-seat Bidirectional rigid sealing ball valve
Technical field
The utility model relates to valve technology field, especially relates to a kind of shape metallic leak-proof structure of ball seat.
Background technique
Valve is used to block and adjustment medium, requires prolonged resistance to.Two way valve can carry out when medium positive flow regulating and carry disconnected, can prevent again medium from flowing backwards, namely have bidirectional cutting function when pressure reduction conversion or maintenance.This just requires that the existing good bidirectional cutting function of valve has again two way sealed performance.Chinese patent Authorization Notice No. CN204420171U, on June 24 2015 notice of authorization date, the utility model patent that name is called " two way sealed valve seat construction and ultralow temperature fill formula fixing ball valve " is exactly a kind of technological scheme wherein.It comprises bracing ring, valve seat and spring support, bracing ring is divided into valve pocket section and coordinates section, valve seat is arranged on valve pocket section towards on the end face of valve pocket, spring support is arranged on the end face of valve pocket section valve pocket dorsad, also comprise piston ring, piston ring packing is set in and coordinates in section and can along the axial motion of bracing ring, the end face of valve pocket section valve pocket is dorsad provided with can with the fitting surface of piston ring snug fit; The annular diameters of valve seat is greater than the outer annular diameter of bracing ring cooperation section.This technological scheme, complex structure, making and installation is inconvenient.
Summary of the invention
Complicated in order to solve two way sealed valve seat construction in prior art, the technical problem of making and installation inconvenience, the utility model provides a kind of convenient double-valve-seat Bidirectional rigid sealing ball valve structure manufacturing and install.
The technical solution of the utility model is: a kind of double-valve-seat Bidirectional rigid sealing ball valve, it comprises valve body and spheroid, valve body is provided with a pair valve seat, valve seat in a tubular form profile is Rotary-table, valve seat outer wall is connected with C shape spring and belleville spring, C shape spring is connected with valve body with belleville spring, and valve seat end coordinates with ball seal.Spheroid is positioned at the lumen centers of valve body and a pair valve seat forms sealing pair, and both sides loaded spring presses on valve body simultaneously, and before and after forcing, sealing surface seals simultaneously, improves two way sealed performance.Compact structure, saves installing space.
As preferably, valve seat end face is the sealing surface of sphere, and sealing surface and spherome surface are sealed and matched; Valve seat end face and spheroid adopt face seal form, ensure that two way sealed is reliable.The sealing means of metal to metal, effectively to prevent in medium particle to the destruction of sealing surface, long service life.
As preferably, valve seat outer wall is provided with the first groove, and the bottom land of the first groove is provided with the second groove, and the second groove is connected with the L-shaped sealing layer in cross section, and sealing layer is connected with valve seal; Convenient manufacture.
Compared with prior art, the beneficial effects of the utility model are: a pair valve seat forms sealing pair to spheroid, and both sides loaded spring presses on valve body simultaneously, and before and after forcing, sealing surface seals simultaneously, improves two way sealed performance.Valve seat end face and spheroid adopt face seal form, ensure that two way sealed is reliable.Spheroid and valve seat adopt the sealing means of metal to metal, effectively to prevent in medium particle to the destruction of sealing surface, long service life.Compact structure, convenient manufacture and installation.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model sectional view;
Accompanying drawing 2 is the enlarged view of A in Fig. 1;
Accompanying drawing 3 is valve seat sectional view.
In figure: 1-valve body; 2-valve seat; 3-spheroid; 4-C shape spring; 5-sealing layer; 6-belleville spring; 21-sealing surface; 22-first groove; 23-second groove.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1,2 and 3, a kind of double-valve-seat Bidirectional rigid sealing ball valve, it comprises valve body 1, valve seat 2 and spheroid 3.Spheroid 3 is positioned at valve body 1 central position.Spheroid 3 is provided with ball through hole, through spheroid 3 surface of ball through hole.Ball through hole is positioned at the large path position of ball of spheroid 3.Valve seat 2 has a pair, symmetrical centered by spheroid 3.Valve seat 2 in a tubular form profile is Rotary-table.The endoporus of valve seat 2 is equal with ball through-hole diameter.Valve seat 2 end and spheroid 3 are sealed and matched.Valve seat 2 end face is the sealing surface 21 of sphere.Sealing surface 21 is a part for sphere.The diameter of sealing surface 21 is identical with the large footpath of the ball of spheroid 3.Sealing surface 21 is wrapped in spheroid 3 outer surface.Valve seat 2 outer wall is connected with C shape spring 4 and belleville spring 6, C shape spring 4 is connected with valve body 1 with belleville spring 6.Valve seat 2 outer wall is provided with the first groove 22.The bottom land of the first groove 22 is provided with the second groove 23, second groove 23 and is connected with the L-shaped sealing layer in cross section 5.Sealing layer 5 and valve body 1 are tightly connected.Sealing layer 5 is that annular cross section is L-shaped, and inner ring embeds the second groove 23, and outer shroud outer wall and valve body 1 inwall are fitted, and fit in the cell wall end of outer shroud inwall and the second groove 23.C shape spring 4 and the first groove 22 trough rim, bottom land and a valve body 1 inwall fit, breach is towards sealing layer 5.Belleville spring 6 is set with valve seat 2 outer surface, and fit another end face and valve body 1 inwall of the groove outer wall of an end face and the second groove 23 is fitted.

Claims (3)

1. a double-valve-seat Bidirectional rigid sealing ball valve, it comprises valve body (1) and spheroid (3), it is characterized in that: described valve body (1) is provided with a pair valve seat (2), described valve seat (2) in a tubular form profile is Rotary-table, valve seat (2) outer wall is connected with C shape spring (4) and belleville spring (6), C shape spring (4) is connected with valve body (1) with belleville spring (6), and described valve seat (2) end and described spheroid (3) are sealed and matched.
2. a kind of double-valve-seat Bidirectional rigid sealing ball valve according to claim 1, is characterized in that: described valve seat (2) end face is the sealing surface (21) of sphere, and sealing surface (21) coordinates with described spheroid (3) face seal.
3. a kind of double-valve-seat Bidirectional rigid sealing ball valve according to claim 1, it is characterized in that: described valve seat (2) outer wall is provided with the first groove (22), the bottom land of the first groove (22) is provided with the second groove (23), second groove (23) is connected with the L-shaped sealing layer in cross section (5), and sealing layer (5) and valve body (1) are tightly connected.
CN201520783585.9U 2015-10-12 2015-10-12 Two -way ball valve sealed firmly of bivalve seat Active CN205036884U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520783585.9U CN205036884U (en) 2015-10-12 2015-10-12 Two -way ball valve sealed firmly of bivalve seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520783585.9U CN205036884U (en) 2015-10-12 2015-10-12 Two -way ball valve sealed firmly of bivalve seat

Publications (1)

Publication Number Publication Date
CN205036884U true CN205036884U (en) 2016-02-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520783585.9U Active CN205036884U (en) 2015-10-12 2015-10-12 Two -way ball valve sealed firmly of bivalve seat

Country Status (1)

Country Link
CN (1) CN205036884U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106151576A (en) * 2016-08-26 2016-11-23 武汉大禹阀门股份有限公司 A kind of self adaptation two-way floating valve seat construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106151576A (en) * 2016-08-26 2016-11-23 武汉大禹阀门股份有限公司 A kind of self adaptation two-way floating valve seat construction
CN106151576B (en) * 2016-08-26 2019-02-19 武汉大禹阀门股份有限公司 A kind of adaptive two-way floating valve seat construction

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