CN206563148U - Coal gas joint expansion joint - Google Patents
Coal gas joint expansion joint Download PDFInfo
- Publication number
- CN206563148U CN206563148U CN201720213919.8U CN201720213919U CN206563148U CN 206563148 U CN206563148 U CN 206563148U CN 201720213919 U CN201720213919 U CN 201720213919U CN 206563148 U CN206563148 U CN 206563148U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- branch sleeve
- flange
- joint bearing
- shishimonoseki
- 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
Links
- 239000003034 coal gas Substances 0.000 title claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 125000006850 spacer group Chemical group 0.000 claims abstract description 7
- 210000004907 gland Anatomy 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims 1
- 239000003245 coal Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Diaphragms And Bellows (AREA)
Abstract
Coal gas joint expansion joint is related to expansion joint field.Mainly for solve metal bellows on existing expansion joint can not self-return the problem of and design.It includes having ladder type sealing ring in metal bellows, upper flange, lower flange, the O-ring seal mounting groove of lower flange；On, there is key seat on lower flange, metal bellows returning device includes upper joint bearing and ShiShimonoseki bearings, ShiShimonoseki bearings are on the key seat of lower flange, upper joint bearing is on the key seat of upper flange, on, lower cover is respectively sleeved at, in the bearings of ShiShimonoseki, branch sleeve is fixed on lower cover, on, there is spring retainer groove on lower cover, spacer pin in branch sleeve is fixed on branch sleeve inwall from the axial long hole of connecting rod by rear two ends, the bottom of upper joint bearing is threadedly coupled with connecting rod, spring is arranged with outside branch sleeve, there is lower nut in the bearings of ShiShimonoseki, there is top nut on upper joint bearing.Advantage is that metal bellows can automatically reset.
Description
Technical field：
The utility model is related to expansion joint field, is specifically related to a kind of on the gas piping being connected with bell furnace
Coal gas joint expansion joint.
Background technology：
When being given gas to bell furnace, coal supply feed channel has pressing action, makes the sealing ring on expansion joint flange in the bottom
It is in close contact with platform surface, realizes sealing, prevent gas leak.When bell furnace is stopped, gas valve is closed, coal supply
Feed channel stops pushing, and expansion joint needs to lift, and recovers to original state.But the metal bellows pressure on existing expansion joint
Powerless compression sealing ring realizes sealing after contracting, and after thrust is lost, can not also realize self-return, need to manually adjust,
Waste time and energy, increase the labor intensity of workman.
The content of the invention：
Technical problem to be solved in the utility model be to provide one kind need not manually adjust metal bellows can be automatic
Compress sealing and can self-return coal gas joint expansion joint.
What above-mentioned purpose was realized in：It includes being fixed with upper flange at the top of metal bellows, metal bellows, gold
The bottom of category bellows, which is fixed with lower flange, lower flange, offers O-ring seal mounting groove, in O-ring seal mounting groove
Equipped with ladder type sealing ring；It is characterized in that：Key seat is all fixed with upper flange and lower flange, in addition to several metal bellows are returned
Position device；
Described metal bellows returning device includes upper joint bearing and ShiShimonoseki bearings, described ShiShimonoseki bearings dress
On the key seat of lower flange, upper joint bearing is on the key seat of upper flange, and lower cover is set in the bearings of ShiShimonoseki, upper press cover
It is set on upper joint bearing, the lower end of branch sleeve is fixed on lower cover, the upper surface of the lower cover on the outside of branch sleeve
Spring retainer groove provided with annular, the bottom of connecting rod is extend into branch sleeve, and the bottom of connecting rod is provided with axial long hole,
Spacer pin is provided with branch sleeve, described spacer pin is all fixed on from the axial long hole of connecting rod bottom by its rear two ends
On the inwall of branch sleeve, offer and withstood at the top of screwed hole, connecting rod on upper press cover on the upper surface of connecting rod, connecting rod
Spring retainer groove of the lower surface of the upper press cover in outside provided with annular, the bottom of upper joint bearing extend into the screw thread of connecting rod
Kong Zhong, the bottom of upper joint bearing is threadedly coupled with connecting rod, spring is arranged with outside branch sleeve, under the lower end of spring is located at
In the spring retainer groove of gland, the upper end of spring is located in the spring retainer groove of upper press cover, ShiShimonoseki bearings below lower cover
It is provided with the upper joint bearing above lower nut, upper press cover and is provided with top nut.
The utility model has the advantages that：Due to being provided with spring outside connecting cylinder, so under the action of the spring, can drive
Metal bellows automatically resets, so as to save manpower, alleviates the labor intensity of workman.
Brief description of the drawings：
Fig. 1 is structural representation of the present utility model.
Embodiment：
Reference picture 1, it includes being fixed with upper flange 2 at the top of metal bellows 1, metal bellows, metal bellows
Bottom, which is fixed with lower flange 3, lower flange, offers O-ring seal mounting groove, and O-ring seal mounting groove is close built with ladder type
Seal 4；It is characterized in that：Key seat 5, in addition to several metal bellows returning devices are all fixed with upper flange and lower flange；
Described metal bellows returning device includes upper joint bearing 6 and ShiShimonoseki bearings 7, described ShiShimonoseki bearings
On the key seat of lower flange, upper joint bearing is on the key seat of upper flange, and lower cover 8 is set in the bearings of ShiShimonoseki, on
Gland 9 is set on upper joint bearing, and the lower end of branch sleeve 10 is fixed on lower cover, the lower cover on the outside of branch sleeve
Spring retainer groove of the upper surface provided with annular, the bottom of connecting rod 11 is extend into branch sleeve, and the bottom of connecting rod is provided with
Axial long hole, is provided with spacer pin 12 in branch sleeve, described spacer pin from the axial long hole of connecting rod bottom by it is rear its
Two ends are all fixed on the inwall of branch sleeve, are offered and are withstood at the top of screwed hole, connecting rod on the upper surface of connecting rod
On gland, spring retainer groove of the lower surface provided with annular of the upper press cover on the outside of connecting rod, the bottom of upper joint bearing is stretched into
Into the screwed hole of connecting rod, the bottom of upper joint bearing is threadedly coupled with connecting rod, and spring 13 is arranged with outside branch sleeve,
The lower end of spring is located in the spring retainer groove of lower cover, and the upper end of spring is located in the spring retainer groove of upper press cover, lower cover
The upper joint bearing that ShiShimonoseki bearings of lower section are provided with above lower nut 14, upper press cover is provided with top nut 15.
Claims (1)
1. coal gas joint expansion joint, including metal bellows（1）, upper flange is fixed with the top of metal bellows（2）, metal wave
The bottom of line pipe is fixed with lower flange（3）, O-ring seal mounting groove is offered on lower flange, and O-ring seal mounting groove is built-in
There is ladder type sealing ring（4）；It is characterized in that：Key seat is all fixed with upper flange and lower flange（5）, in addition to several wavy metals
Pipe returning device；
Described metal bellows returning device includes upper joint bearing（6）With ShiShimonoseki bearings（7）, described ShiShimonoseki bearings
On the key seat of lower flange, upper joint bearing is on the key seat of upper flange, lower cover（8）It is set in the bearings of ShiShimonoseki,
Upper press cover（9）It is set on upper joint bearing, branch sleeve（10）Lower end be fixed on lower cover, on the outside of branch sleeve under
Spring retainer groove of the upper surface of gland provided with annular, connecting rod（11）Bottom extend into branch sleeve, connecting rod
Bottom, which is provided with axial long hole, branch sleeve, is provided with spacer pin（12）, the axial long hole of described spacer pin from connecting rod bottom
In be all fixed on by its rear two ends on the inwall of branch sleeve, screwed hole is offered on the upper surface of connecting rod, connecting rod
Top is withstood on upper press cover, spring retainer groove of the lower surface provided with annular of the upper press cover on the outside of connecting rod, upper joint bearing
Bottom extend into the screwed hole of connecting rod, the bottom of upper joint bearing is threadedly coupled with connecting rod, the outer surface cover of branch sleeve
Provided with spring（13）, the lower end of spring is in the spring retainer groove of lower cover, and the upper end of spring is located at the spring limit of upper press cover
In the groove of position, ShiShimonoseki bearings below lower cover are provided with lower nut（14）, the upper joint bearing above upper press cover is provided with upper
Nut（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720213919.8U CN206563148U (en) | 2017-03-07 | 2017-03-07 | Coal gas joint expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720213919.8U CN206563148U (en) | 2017-03-07 | 2017-03-07 | Coal gas joint expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206563148U true CN206563148U (en) | 2017-10-17 |
Family
ID=60031755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720213919.8U Active CN206563148U (en) | 2017-03-07 | 2017-03-07 | Coal gas joint expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206563148U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709026A (en) * | 2018-08-06 | 2018-10-26 | 常州奥特斯丹智能装备科技有限公司 | A kind of pipe flange top opening |
| CN111998158A (en) * | 2020-08-06 | 2020-11-27 | 梁艳艳 | Bellows expansion joint and bellows thereof |
-
2017
- 2017-03-07 CN CN201720213919.8U patent/CN206563148U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709026A (en) * | 2018-08-06 | 2018-10-26 | 常州奥特斯丹智能装备科技有限公司 | A kind of pipe flange top opening |
| CN111998158A (en) * | 2020-08-06 | 2020-11-27 | 梁艳艳 | Bellows expansion joint and bellows thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 245 Anliao Road, Lishan District, Anshan City, Liaoning Province, 114000 Patentee after: Liaoning Shuangan Group Metal Hose Co.,Ltd. Country or region after: China Address before: No. 245 Anliao Road, Lishan District, Anshan City, Liaoning Province, 114000 Patentee before: ANGANG CIVIL ENTERPRISE METAL HOSE FACTORY Country or region before: China |
|
| CP03 | Change of name, title or address |