CN204312751U - The valve seat combination structure of easy maintenance - Google Patents
The valve seat combination structure of easy maintenance Download PDFInfo
- Publication number
- CN204312751U CN204312751U CN201420716705.9U CN201420716705U CN204312751U CN 204312751 U CN204312751 U CN 204312751U CN 201420716705 U CN201420716705 U CN 201420716705U CN 204312751 U CN204312751 U CN 204312751U
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- valve seat
- valve
- ring
- seat
- valve body
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Abstract
The utility model relates to a kind of valve seat combination structure of easy maintenance, comprise valve body, valve seat, valve ball, back-up ring, spring seat and spring, be shaped with crosspassage in valve body, in valve body, both sides transverse uniaxial is symmetrically installed with valve seat, and between the valve seat of these both sides, coaxial rotation is provided with valve ball; The valve body of valve seat lateral outer side is shaped with internal shoulder, back-up ring, spring seat and spring is coaxially installed with successively between valve seat outer and the internal shoulder of valve body, between valve seat and back-up ring, a bracing ring is all installed, between this bracing ring and valve seat, seal ring is installed, the outer of bracing ring is diametrically greater than valve seat, between the bracing ring outer of valve ball transverse ends, equal symmetry is top-loaded with a distraction plate, and this distraction plate is positioned at the valve body of the radial outside of valve seat, and this distraction plate is Telescopic rod device.The utility model provides assembling easy to maintenance, directly can change valve seat or spheroid by line, save engineering time, promote working efficiency, and effectively reduce maintenance cost.
Description
Technical field
The utility model belongs to valve field, especially a kind of valve seat combination structure of easy maintenance.
Background technique
At present, existing upper-mounting type ball valve is mainly made up of spheroid, valve seat and seal ring.Existing upper-mounting type ball valve, the assembling of its spheroid, valve seat, maintenance difficult, and can not on-line maintenance, product maintenance cost is high.
Following published existing patented technology is found through retrieval:
The Quick change valve (CN103322225A) that valve plate, valve seat can be dismantled online, solves easily damaged parts and changes difficulty, the problem that maintenance cost is high.Valve gap and valve body bolt are connected, the inner round wall of valve gap be that the vertical face of the upper flange of L shape and horizontal plane are connected above respectively with cross section, upper flange is connected on valve gap by the first screw, seal with seal ring between upper flange and valve gap, cross section is the circular groove that the ceramic valve seat of L shape is positioned at the lower horizontal plane of upper flange, trim ring coordinates with the ring-shaped step of ceramic valve seat, trim ring is connected on upper flange by the second screw, valve plate is flexibly connected with pivoted arm, rotating shaft and pivoted arm are connected, and the interior circular diameter of valve gap is greater than the external diameter of valve plate.
A kind of exchangeable valve seat safety check (203532877U), comprise valve body, valve gap and flap, valve gap is fixed on valve body by stud, be provided with valve seat in valve body, flap coordinates with valve base sealing, and flap is fixed in valve body by snap ring, flap is provided with pin shaft hole, the both sides wall portion of valve body offers the corresponding and axis hole run through, and pin shaft hole and axis hole form hinged cooperation by the bearing pin inserted, and the end of axis hole is sealed by plug screw.The utility model overcomes the defect that in prior art, the valve seat of general check valve is non-exchange, by above-mentioned design, the valve seat of safety check can be changed easily, reduce maintenance cost, there is simple and compact for structure, that assembling is quick, reliability is strong advantage.
Comparative analysis, compared with prior art there is larger difference technical characteristics in the technology contents of present patent application.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art part, provide that a kind of structure is simple, design science, be convenient to install, the valve seat combination structure of safe and reliable easy maintenance.
The utility model solves its technical problem and takes following technological scheme to realize:
A kind of valve seat combination structure of easy maintenance, comprise valve body, valve seat, valve ball, back-up ring, spring seat and spring, be shaped with crosspassage in valve body, in valve body, both sides transverse uniaxial is symmetrically installed with valve seat, and between the valve seat of these both sides, coaxial rotation is provided with valve ball; The valve body of valve seat lateral outer side is shaped with internal shoulder, back-up ring, spring seat and spring is coaxially installed with successively between valve seat outer and the internal shoulder of valve body, the surface of contact of valve ball and valve seat is provided with elastic seal ring, it is characterized in that: between valve seat and back-up ring, a bracing ring is all installed, between this bracing ring and valve seat, seal ring is installed, the outer of bracing ring is diametrically greater than valve seat, between the bracing ring outer of valve ball transverse ends, equal symmetry is top-loaded with a distraction plate, this distraction plate is positioned at the valve body of the radial outside of valve seat, and this distraction plate is Telescopic rod device.
And the end face of described bracing ring is made as U-groove bevel structure.
Advantage of the present utility model and good effect are:
The utility model provides assembling easy to maintenance, directly can change valve seat or spheroid by line, save engineering time, promote working efficiency, and effectively reduce maintenance cost.
Accompanying drawing explanation
Fig. 1 is the broken section of sealing configuration side view of the present utility model;
Fig. 2 is sealed supporting ring structure schematic diagram in Fig. 1;
Fig. 3 is the right elevation of Fig. 2;
Fig. 4 is the utility model overall package plan structure sectional view.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of valve seat combination structure of easy maintenance, comprise valve body 4, valve seat 6, valve ball 7, back-up ring 3, spring seat 2 and spring 1, be shaped with crosspassage in valve body, in valve body 4, both sides transverse uniaxial is symmetrically installed with valve seat 6, and between the valve seat of these both sides, coaxial rotation is provided with valve ball 7; In order to keep the sealing of valve seat, the valve body of valve seat lateral outer side is shaped with internal shoulder, between valve seat outer and the internal shoulder of valve body, be coaxially installed with back-up ring 3, spring seat 2 and spring 1 successively, this spring continues the pretightening force providing transverse uniaxial, makes valve seat and valve ball keep sealing; The surface of contact of valve ball and valve seat is provided with elastic seal ring.
Innovative point of the present utility model is:
One bracing ring 5 is all installed between valve seat and back-up ring, between this bracing ring and valve seat, seal ring is installed, the outer of bracing ring is diametrically greater than valve seat, between the bracing ring outer of valve ball transverse ends, equal symmetry is top-loaded with a distraction plate 8, this distraction plate is positioned at the valve body of the radial outside of valve seat, and this distraction plate is Telescopic rod device.
Shown in accompanying drawing 3, the end face of bracing ring is made as U-groove bevel structure, thus when not tearing bracing ring open, uses distraction plate to strut the bracing ring of both sides, can by top dismounting and change valve seat or valve ball.
The installation method of this structure is as follows:
Valve component (comprising seal ring, bracing ring, back-up ring, spring seat, spring) is loaded in valve body, by 8 struts, the modular support such as bracing ring are opened (spring is compressed), spheroid and valve seat combination are loaded in cavity, strut is unclamped and takes out, valve component to be resumed work state by spring-force driven dual, only with strut, bracing ring assembly need be strutted during maintain and replace, valve seat and spheroid are taken out.This structure installment is convenient, and maintenance cost is low.
Although disclose embodiment of the present utility model and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the utility model and claims, various replacement, change and amendment are all possible, therefore, scope of the present utility model is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (2)
1. the valve seat combination structure of an easy maintenance, comprise valve body, valve seat, valve ball, back-up ring, spring seat and spring, be shaped with crosspassage in valve body, in valve body, both sides transverse uniaxial is symmetrically installed with valve seat, and between the valve seat of these both sides, coaxial rotation is provided with valve ball; The valve body of valve seat lateral outer side is shaped with internal shoulder, back-up ring, spring seat and spring is coaxially installed with successively between valve seat outer and the internal shoulder of valve body, the surface of contact of valve ball and valve seat is provided with elastic seal ring, it is characterized in that: between valve seat and back-up ring, a bracing ring is all installed, between this bracing ring and valve seat, seal ring is installed, the outer of bracing ring is diametrically greater than valve seat, between the bracing ring outer of valve ball transverse ends, equal symmetry is top-loaded with a distraction plate, this distraction plate is positioned at the valve body of the radial outside of valve seat, and this distraction plate is Telescopic rod device.
2. the valve seat combination structure of easy maintenance according to claim 1, is characterized in that: the end face of described bracing ring is made as U-groove bevel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716705.9U CN204312751U (en) | 2014-11-25 | 2014-11-25 | The valve seat combination structure of easy maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716705.9U CN204312751U (en) | 2014-11-25 | 2014-11-25 | The valve seat combination structure of easy maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312751U true CN204312751U (en) | 2015-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420716705.9U Active CN204312751U (en) | 2014-11-25 | 2014-11-25 | The valve seat combination structure of easy maintenance |
Country Status (1)
| Country | Link |
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| CN (1) | CN204312751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455530A (en) * | 2014-11-25 | 2015-03-25 | 天津百利展发集团有限公司 | Valve seat combination structure easy and convenient to maintain |
-
2014
- 2014-11-25 CN CN201420716705.9U patent/CN204312751U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455530A (en) * | 2014-11-25 | 2015-03-25 | 天津百利展发集团有限公司 | Valve seat combination structure easy and convenient to maintain |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |