CN205001544U - Gate valve with replaceable valve seats - Google Patents
Gate valve with replaceable valve seats Download PDFInfo
- Publication number
- CN205001544U CN205001544U CN201520770877.9U CN201520770877U CN205001544U CN 205001544 U CN205001544 U CN 205001544U CN 201520770877 U CN201520770877 U CN 201520770877U CN 205001544 U CN205001544 U CN 205001544U
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- CN
- China
- Prior art keywords
- valve
- valve seat
- ring
- boss
- anticreep
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Abstract
The utility model relates to a valve, especially, relate to a gate valve with replaceable valve seats. This gate valve with replaceable valve seats, which comprises the following components: a valve body, flashboard and valve rod, the valve body is including getting into end and outlet side, the valve body is inside all to be provided with the disk seat near getting into end and outlet side department, the one end that the disk seat is close to the valve body is provided with the boss ring that the diameter is greater than the disk seat, be provided with the sealing washer between boss ring and the valve body, the outside cover in one side that the disk seat is close to the flashboard is equipped with the disk seat retaining ring, disk seat retaining ring and valve body threaded connection, run through the anticreep housing screw that is provided with a plurality of and is used for fixed disk seat retaining ring on the disk seat retaining ring, the anticreep housing screw is including integrative nail post and the anticreep boss that links to each other, the anticreep boss is located between disk seat retaining ring and the boss ring. The utility model discloses have can be effectively to valve seal, be convenient for change beneficial effect such as disk seat.
Description
Technical field
The utility model relates to a kind of valve, especially relates to a kind of gate valve of valve with changeable valve seat.
Background technique
Gate valve comprises valve seat, flashboard and valve rod, valve seat is arranged inlet end and exhaust end, discharged by exhaust end again through valve seat after gas or liquid are entered by inlet end, the valve seat of this kind of gate valve is fixed valve seat substantially, valve seat cannot be dismantled, when seat leakage reduces, whole gate valve cannot keep in repair, and reduce the working life of valve.Also have the valve seat of a class valve to dismantle, but this kind of valve seat connecting structure is complicated, needs more component, increases the cost of valve, and valve seat is easy and between valve body, relative movement occurs produces gap, causes valve leaks.
Model utility content
The utility model, mainly for the problems referred to above, provides a kind of and can be convenient to dismantle valve seat and the working life changing, extend valve entirety to valve seat, be convenient to maintenance of valve gate valve.
The purpose of this utility model is mainly achieved by following proposal: a kind of gate valve of valve with changeable valve seat, comprise valve body, flashboard and valve rod, valve body comprises inlet end and exhaust end, valve inner is provided with valve seat near inlet end and exhaust end place, valve seat is provided with the boss ring that diameter is greater than valve seat near one end of valve body, seal ring is provided with between boss ring and valve body, valve seat is provided with valve seat back-up ring near the side outer cover of flashboard, valve seat back-up ring is connected with valve body screw thread, valve seat back-up ring runs through and is provided with several anticreep housing screws for fixed valve base back-up ring, anticreep housing screw comprises the connected nail post of one and anticreep boss, anticreep boss is between valve seat back-up ring and boss ring.Valve seat is provided with boss ring near one end of valve body, the diameter of boss ring is greater than the diameter of valve seat, the joint of valve seat and boss ring forms the step surface that section is " L " shape, boss ring arranges seal ring near the side of valve body, when valve seat and boss ring are adjacent on valve body, seal ring can play seal action.Valve seat is provided with valve seat back-up ring near the side outer cover of flashboard, and valve seat back-up ring is connected with valve body screw thread, utilizes valve seat back-up ring to locate seat compression, and valve seat back-up ring to valve seat supporting and location, and can not only can play seal action.Valve seat back-up ring runs through and is provided with several anticreep housing screws for fixed valve base back-up ring, anticreep housing screw is utilized to hold out against boss ring, anticreep housing screw comprises nail post and anticreep boss, and nail post and anticreep boss one-body molded, nail post is applied in valve seat back-up ring also to adopt and is threaded, anticreep boss is between valve seat back-up ring and boss ring, load near the side of boss ring by anticreep boss, when valve seat back-up ring and valve seat are fixed, the nut of anticreep housing screw holds out against boss ring, even if be also loosen towards the direction of boss ring when anticreep housing screw loosens, prevent anticreep housing screw from departing from valve seat back-up ring, anticreep housing screw can not only fixed valve base back-up ring and valve seat, and anticreep boss can be utilized to hold out against boss ring, make boss ring press seal circle, improve integral sealing effect.Utilize the frictional force between the boss ring of anticreep boss and valve seat that valve seat back-up ring is fixed with valve seat, avoid valve seat back-up ring to depart from, the fastness that raising valve seat back-up ring and valve seat are fixed, and then the compression dynamics and the sealing that improve valve seat and valve body.Valve seat back-up ring coordinates with valve seat, and the gate valve that can be suitable for various different structure uses.When needing to change valve seat, rotary valve base back-up ring, valve seat back-up ring is disassembled from valve body, just valve with changeable valve seat, puts into valve body by the new valve seat changed, then loads in valve seat back-up ring by anticreep housing screw, by the direction of the side of anticreep boss towards boss ring, again valve seat back-up ring is screwed in valve body, make valve seat back-up ring hold out against the boss ring of valve seat, realize the replacing of valve seat.
As preferably, valve seat back-up ring top is provided with locating slot, and valve seat top radial direction is provided with positioning screwn, and positioning screwn runs through valve seat and axially to insert locating slot inner.Valve seat back-up ring top is provided with locating slot, runs through positioning screwn at valve seat top, and the locating slot inserting valve seat back-up ring after positioning screwn radial direction runs through valve seat is inner, realizes the circumferential registration of valve seat back-up ring.
As preferably, anticreep housing screw evenly distributes around the axis of valve seat back-up ring.Anticreep housing screw is evenly distributed around the axis of valve seat back-up ring, ensures valve seat back-up ring uniform force.
Therefore, the gate valve of valve with changeable valve seat of the present utility model possesses following advantage: valve seat is provided with valve seat back-up ring near the side outer cover of flashboard, valve seat back-up ring is connected with valve body screw thread, valve seat back-up ring is utilized to locate seat compression, valve seat back-up ring to valve seat supporting and location, and can not only can play seal action.Valve seat back-up ring runs through and is provided with several anticreep housing screws for fixed valve base back-up ring, anticreep housing screw is utilized to hold out against boss ring, anticreep housing screw comprises nail post and anticreep boss, and nail post and anticreep boss one-body molded, nail post is applied in valve seat back-up ring also to adopt and is threaded, anticreep boss is between valve seat back-up ring and boss ring, load near the side of boss ring by anticreep boss, when valve seat back-up ring and valve seat are fixed, the nut of anticreep housing screw holds out against boss ring, even if be also loosen towards the direction of boss ring when anticreep housing screw loosens, prevent anticreep housing screw from departing from valve seat back-up ring, anticreep housing screw can not only fixed valve base back-up ring and valve seat, and anticreep boss can be utilized to hold out against boss ring, make boss ring press seal circle, improve integral sealing effect.And utilize the frictional force between the boss ring of anticreep boss and valve seat that valve seat back-up ring is fixed with valve seat, avoid valve seat back-up ring to depart from, the fastness that raising valve seat back-up ring and valve seat are fixed.When needing to change valve seat, rotary valve base back-up ring, valve seat back-up ring is disassembled from valve body, just valve with changeable valve seat, puts into valve body by the new valve seat changed, then loads in valve seat back-up ring by anticreep housing screw, by the direction of the side of anticreep boss towards boss ring, again valve seat back-up ring is screwed in valve body, make valve seat back-up ring hold out against the boss ring of valve seat, realize the replacing of valve seat.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is D place partial enlarged drawings in accompanying drawing 1;
Accompanying drawing 3 is the radial cross section sectional views at valve seat back-up ring place in the utility model.
Illustrate: 01-valve rod, 02-valve body, 021-inlet end, 022-exhaust end, 03-flashboard, 14-valve seat, 15-valve seat back-up ring, 16-anticreep housing screw, 17-locating slot, 18-boss ring, 19-seal ring, 20-anticreep boss.
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, a kind of gate valve of valve with changeable valve seat, comprises valve body 02, flashboard 03 and valve rod 01, and valve body comprises inlet end 021 and exhaust end 022.Valve inner is provided with valve seat near inlet end and exhaust end place, and as shown in Figure 2,3, valve seat is integrally connected with boss ring 18 near the side of valve body, is provided with seal ring 19 between boss ring and valve body.Valve seat 14 is provided with valve seat back-up ring 15 near the side outer cover of flashboard, valve seat back-up ring is connected with valve body screw thread, valve seat back-up ring runs through the anticreep housing screw 16 be provided with for fixed valve base back-up ring, anticreep housing screw evenly distributes around the axis of valve seat back-up ring, anticreep housing screw comprises nail post and anticreep boss 20, and nail post and anticreep boss are formed in one structure.Anticreep boss 20 is between valve seat back-up ring and boss ring, and valve seat back-up ring top radial direction is provided with locating slot 17, and valve seat top is provided with positioning screwn, and positioning screwn runs through valve seat and axially inserts locating slot inside.
Valve seat is provided with boss ring near one end of valve body, the diameter of boss ring is greater than the diameter of valve seat, the joint of valve seat and boss ring forms the step surface that section is " L " shape, boss ring arranges seal ring near the side of valve body, when valve seat and boss ring are adjacent on valve body, seal ring can play seal action.Valve seat is provided with valve seat back-up ring near the side outer cover of flashboard, and valve seat back-up ring is connected with valve body screw thread, utilizes valve seat back-up ring to locate seat compression, and valve seat back-up ring to valve seat supporting and location, and can not only can play seal action.Valve seat back-up ring runs through and is provided with several anticreep housing screws for fixed valve base back-up ring, anticreep housing screw is utilized to hold out against boss ring, anticreep housing screw comprises nail post and anticreep boss, and nail post and anticreep boss one-body molded, nail post is applied in valve seat back-up ring also to adopt and is threaded, anticreep boss is between valve seat back-up ring and boss ring, load near the side of boss ring by anticreep boss, when valve seat back-up ring and valve seat are fixed, the nut of anticreep housing screw holds out against boss ring, even if be also loosen towards the direction of boss ring when anticreep housing screw loosens, prevent anticreep housing screw from departing from valve seat back-up ring, anticreep housing screw can not only fixed valve base back-up ring and valve seat, and anticreep boss can be utilized to hold out against boss ring, make boss ring press seal circle, improve integral sealing effect.And utilize the frictional force between the boss ring of anticreep boss and valve seat that valve seat back-up ring is fixed with valve seat, avoid valve seat back-up ring to depart from, the fastness that raising valve seat back-up ring and valve seat are fixed.Valve seat back-up ring coordinates with valve seat, and the gate valve that can be suitable for various different structure uses.When needing to change valve seat, rotary valve base back-up ring, valve seat back-up ring is disassembled from valve body, just valve with changeable valve seat, puts into valve body by the new valve seat changed, then loads in valve seat back-up ring by anticreep housing screw, by the direction of the side of anticreep boss towards boss ring, again valve seat back-up ring is screwed in valve body, make valve seat back-up ring hold out against the boss ring of valve seat, realize the replacing of valve seat.Valve seat back-up ring top is provided with locating slot, runs through positioning screwn at valve seat top, and the locating slot inserting valve seat back-up ring after positioning screwn radial direction runs through valve seat is inner, realizes the circumferential registration of valve seat back-up ring.Anticreep housing screw is evenly distributed around the axis of valve seat back-up ring, ensures valve seat back-up ring uniform force.
Should be understood that this embodiment is only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model instruction.
Claims (3)
1. the gate valve of a valve with changeable valve seat, comprise valve body, flashboard and valve rod, valve body comprises inlet end and exhaust end, it is characterized in that, valve inner is provided with valve seat near inlet end and exhaust end place, valve seat is provided with the boss ring that diameter is greater than valve seat near one end of valve body, valve seat is provided with valve seat back-up ring near the side outer cover of flashboard, valve seat back-up ring runs through and is provided with several anticreep housing screws for fixed valve base back-up ring, anticreep housing screw comprises the connected nail post of one and anticreep boss, and anticreep boss is between valve seat back-up ring and boss ring.
2. the gate valve of valve with changeable valve seat according to claim 1, is characterized in that, valve seat back-up ring top radial direction is provided with locating slot, and valve seat top is provided with positioning screwn, and positioning screwn runs through valve seat and axially inserts locating slot inside.
3. the gate valve of valve with changeable valve seat according to claim 1 and 2, is characterized in that, anticreep housing screw evenly distributes around the axis of valve seat back-up ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520770877.9U CN205001544U (en) | 2015-09-30 | 2015-09-30 | Gate valve with replaceable valve seats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520770877.9U CN205001544U (en) | 2015-09-30 | 2015-09-30 | Gate valve with replaceable valve seats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205001544U true CN205001544U (en) | 2016-01-27 |
Family
ID=55158432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520770877.9U Active CN205001544U (en) | 2015-09-30 | 2015-09-30 | Gate valve with replaceable valve seats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205001544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10718436B2 (en) | 2018-02-28 | 2020-07-21 | Ge Oil & Gas Pressure Control Lp | Valve seat replacement system and method |
-
2015
- 2015-09-30 CN CN201520770877.9U patent/CN205001544U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10718436B2 (en) | 2018-02-28 | 2020-07-21 | Ge Oil & Gas Pressure Control Lp | Valve seat replacement system and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |