CN206694576U - A kind of ball seat of structure safety - Google Patents

A kind of ball seat of structure safety Download PDF

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Publication number
CN206694576U
CN206694576U CN201720407342.4U CN201720407342U CN206694576U CN 206694576 U CN206694576 U CN 206694576U CN 201720407342 U CN201720407342 U CN 201720407342U CN 206694576 U CN206694576 U CN 206694576U
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CN
China
Prior art keywords
ring
inner ring
valve seat
outer shroud
coordinates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201720407342.4U
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Chinese (zh)
Inventor
徐珍
张兆坤
卞士磊
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.)
Shanghai High & Medium Pressure Valve Co Ltd
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Shanghai High & Medium Pressure Valve Co Ltd
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Publication date
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Priority to CN201720407342.4U priority Critical patent/CN206694576U/en
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Publication of CN206694576U publication Critical patent/CN206694576U/en
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Abstract

It the utility model is related to the buried ball valve technical field of long-distance transport pipes, a kind of specifically ball seat of structure safety, inner ring rear end is provided with auxiliary seal ring, auxiliary seal ring center section is provided with ring-shaped groove, described ring-shaped groove passes through elongated hole and inner ring leading portion groove UNICOM, valve seat insert endoporus coordinates with inner ring front end external diameter to be installed, bore diameter of outer ring coordinates with outside diameter of inner ring to be assembled, it is provided between described inner ring and outer shroud and coordinates inclined-plane and integral sealing ring, outer shroud bottom surface is provided with spring, to ensure the working clearance between valve seat and valve body, valve seat insert endoporus anchor ring is provided with tooth form texture.The utility model employs multistage-combination sealing means, substantially increases sealing property, extends valve seat service life;Inner ring and outer rings ensure that the sealing property of valve seat insert is guaranteed by Type of Welding;Outer shroud bottom surface spring ensures that valve seat is brought into close contact with sphere forever, it is ensured that has good compensating effect to sealing.

Description

A kind of ball seat of structure safety
[technical field]
The buried ball valve technical field of long-distance transport pipes is the utility model is related to, specifically a kind of ball valve of structure safety Seat.
[background technology]
Ball valve is to reach sealing function by pressure caused by the close contact of valve base sealing element and spherome surface Valve, the performance of valve seat directly influence the overall performance of ball valve.
The conventional structure type of the valve seat of ball valve rubber seal at present has trim ring fixed and 2 kinds of screw-fixing-type, makes The situation that fixture is deviate from caused by the vibration in opening-closing process under medium turbulent condition all occurred during, gave Pipe-line system brings harm.
[utility model content]
The purpose of this utility model is solve the deficiencies in the prior art, there is provided a kind of ball seat of structure safety, it It can well overcome or avoid fixture present in above-mentioned prior art from disengaging, valve seat rigid deficiency, processed complex and use The problem of cycle is short.
To achieve these goals, a kind of ball seat of structure safety, including inner ring (1), auxiliary seal ring are designed (2), primary seal circle (3), spring (4), outer shroud (5), valve seat insert (6) and integral sealing ring (7), it is characterised in that described Inner ring (1) rear end is provided with auxiliary seal ring (2), and described auxiliary seal ring (2) center section is provided with ring-shaped groove, described ring By elongated hole and inner ring leading portion groove UNICOM, valve seat insert (6) endoporus coordinates with inner ring (1) front end external diameter pacifies shape groove Dress, outer shroud (5) internal diameter and inner ring (1) major diameter fit assemble, be provided between described inner ring (1) and outer shroud (5) cooperation inclined-plane and Integral sealing ring (7), outer shroud (5) bottom surface is provided with spring (4), to ensure the working clearance between valve seat and valve body, valve base sealing Circle (6) endoporus anchor ring is provided with tooth form texture.
Described inner ring (1) and outer shroud (5) are by being welded and fixed.Described outer shroud (5) internal diameter uses with inner ring (1) external diameter Gap, which coordinates, is assembled.It is provided between described inner ring (1) and outer shroud (5) and coordinates inclined-plane, is set inside described cooperation inclined-plane There is integral sealing ring (7), play a part of keeping overall sealing performance.
The utility model compared with the existing technology, combining structure simple possible, is easily installed and dismantled, the advantage is that: The utility model includes two-stage auxiliary seal ring, employs multistage-combination sealing means, substantially increases sealing property, extends Valve seat service life;Inner ring and outer rings ensure that the sealing property of valve seat insert is guaranteed by Type of Welding, will not produce Valve seat insert relative to operating position movement, this shape be advantageous to strengthen sealing property;Outer shroud bottom surface spring ensures valve seat It is brought into close contact forever with sphere, it is ensured that there is good compensating effect to sealing, this sealing structure effect is more preferable;Described valve Seat sealing ring uses import specific rubber, and wearability is high, and the long-time for being resistant to spheroid is back and forth run, the service life of product It is long.
[brief description of the drawings]
Fig. 1 is the ball seat cross-sectional view of the utility model structure safety;
In figure:1. 6. valve seat insert of inner ring 2. auxiliary seal ring, 3. primary seal circle, 4. spring, 5. outer shroud 7. is overall Sealing ring.
[embodiment]
The utility model is described in further detail below in conjunction with the accompanying drawings, the structure and principle of this device people professional to this For be very clear.It should be appreciated that specific embodiment described herein is only to explain the utility model, and do not have to In restriction the utility model.
As shown in figure 1, the ball seat of described structure safety, including inner ring (1), the rear end of inner ring (1) are provided with auxiliary Sealing ring (2), the center section of auxiliary seal ring (2) are provided with ring-shaped groove, and ring-shaped groove passes through elongated hole and inner ring leading portion ditch Groove UNICOM;Valve seat insert (6) endoporus coordinates with inner ring (1) front end external diameter to be installed, while outer shroud (5) internal diameter and inner ring (1) are outside Footpath gap coordinates assembling;Ensure to seal by integral sealing ring (7) between inner ring (1) and outer shroud (5), make valve seat overall sealing performance It is guaranteed;Outer shroud (5) bottom surface is provided with spring (4), ensures the working clearance between valve seat and valve body.Inner ring (1) and outer shroud (5) Between have a cooperation inclined-plane, it is whole that the setting fixed by inclined-plane of inner ring (1) and outer shroud (5) makes ball valve still ensure that in off position Body valve seat construction is in sealing state, ensures that ball valve working condition meets product requirement.Valve seat insert (6) endoporus anchor ring is with teeth Shape texture, ensure that stop-leak compound uniformly can be maintained in closure gasket groove when urgent greasing sealing is needed, it is ensured that urgent Greasing sealing property is reliable.
Finally it should be noted that above embodiment content is only to illustrate the technical solution of the utility model, Rather than the limitation to scope of protection of the utility model, one of ordinary skill in the art are carried out to the technical solution of the utility model Simple modification or equivalent substitution, all without departing from the spirit and scope of technical solutions of the utility model.

Claims (4)

  1. It is auxiliary seal ring (2), primary seal circle (3), spring (4), outer 1. a kind of ball seat of structure safety, including inner ring (1) Ring (5), valve seat insert (6) and integral sealing ring (7), it is characterised in that described inner ring (1) rear end is provided with auxiliary seal ring (2), described auxiliary seal ring (2) center section is provided with ring-shaped groove, before described ring-shaped groove is by elongated hole and inner ring Section groove UNICOM, valve seat insert (6) endoporus coordinates with inner ring (1) front end external diameter to be installed, and outer shroud (5) internal diameter and inner ring (1) are outside Footpath coordinates assembling, is provided between described inner ring (1) and outer shroud (5) and coordinates inclined-plane and integral sealing ring (7), outer shroud (5) bottom surface Provided with spring (4), to ensure the working clearance between valve seat and valve body, valve seat insert (6) endoporus anchor ring is provided with tooth form texture.
  2. A kind of 2. ball seat of structure safety as claimed in claim 1, it is characterised in that:Described inner ring (1) and outer shroud (5) by being welded and fixed.
  3. A kind of 3. ball seat of structure safety as claimed in claim 1, it is characterised in that:Described outer shroud (5) internal diameter with Inner ring (1) external diameter is coordinated using gap to be assembled.
  4. A kind of 4. ball seat of structure safety as claimed in claim 1, it is characterised in that:Described inner ring (1) and outer shroud (5) it is provided between and coordinates inclined-plane, integral sealing ring (7) is provided with inside described cooperation inclined-plane.
CN201720407342.4U 2017-04-18 2017-04-18 A kind of ball seat of structure safety Active CN206694576U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720407342.4U CN206694576U (en) 2017-04-18 2017-04-18 A kind of ball seat of structure safety

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720407342.4U CN206694576U (en) 2017-04-18 2017-04-18 A kind of ball seat of structure safety

Publications (1)

Publication Number Publication Date
CN206694576U true CN206694576U (en) 2017-12-01

Family

ID=60445547

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720407342.4U Active CN206694576U (en) 2017-04-18 2017-04-18 A kind of ball seat of structure safety

Country Status (1)

Country Link
CN (1) CN206694576U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108916416A (en) * 2018-09-25 2018-11-30 四川勃朗蜀威科技有限公司 A kind of compensation sealing valve seat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108916416A (en) * 2018-09-25 2018-11-30 四川勃朗蜀威科技有限公司 A kind of compensation sealing valve seat

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