CN201449842U - Simply-installed type metal expander - Google Patents
Simply-installed type metal expander Download PDFInfo
- Publication number
- CN201449842U CN201449842U CN2009200163997U CN200920016399U CN201449842U CN 201449842 U CN201449842 U CN 201449842U CN 2009200163997 U CN2009200163997 U CN 2009200163997U CN 200920016399 U CN200920016399 U CN 200920016399U CN 201449842 U CN201449842 U CN 201449842U
- Authority
- CN
- China
- Prior art keywords
- expander
- type metal
- simply
- installed type
- metal expander
- 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.)
- Expired - Lifetime
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- Diaphragms And Bellows (AREA)
- Gasket Seals (AREA)
Abstract
The utility model relates to a simply-installed type metal expander which comprises an expander (1), wherein the upper portion of the expander (1) is sealed with a plug (10) and an O-shaped sealing pad (9), the lower portion of the expander (1) is directly and fixedly connected with a main body of the product through a pressing ring (4) with an inner hexagonal bolt (5), a washer (6), a spring pad (7) and a nut (8). The simply-installed type metal expander does not have a transitional flange and is directly connected with main body products, thereby reducing the manufacture cost and greatly reducing the manufacture and process time, a top cover on the upper portion of the simply-installed type metal expander adopts flanged reinforced welding and bears the extreme vacuum under 5Pa, the expander and the products can be vacuumed together, thereby the internal part can be insulated and can not be contacted with air, and the insulation performance of the applied electric device can be greatly improved. The connecting components used in the simply-installed type metal expander can be greatly reduced, and the installation efficiency can be greatly improved. All devices of the simply-installed type metal expander only have two welding lines, and thereby the possibility of generating leakage is extremely low.
Description
Technical field
The utility model relates to a kind of expander, especially relates to a kind of simple and easy installing type metal expander.
Background technology
There is following shortcoming in employed both at home and abroad expander as shown in Figure 1, 2: the bottom is furnished with counter flange, has both increased manufacturing cost, has prolonged the processing and manufacturing time again; Can not be inconjunction with expander and find time jointly with product together, this can make built-in electrical insulation be exposed to airborne overlong time, and applied insulation of electrical installation performance is significantly impaired.Bonding wire is longer, and the probability that produces seepage like this will increase greatly.
The utility model content
The technical problems to be solved in the utility model provides a kind of simple and easy installing type metal expander, this expander can Fast Installation, directly take on the body find time, oiling, can greatly reduce the time that transformer oil exposes in air, improve insulation property.
In order to solve the problem that prior art exists, the technical solution adopted in the utility model is:
Simple and easy installing type metal expander comprises expander, and expander top seals with stopper, O grommet type seal, and the bottom of described expander directly is fastenedly connected by trim ring and product main body with hexagon socket head cap screw, packing ring, bullet pad and nut.
A ripple of described expander foot is the rolling moulding, form a burnishing surface after, the middle sealing gasket of placing seals.
The top top cover of described expander is thickeied and is welded with the bellows wall flange.
Advantage and effect that the utility model had are:
1, the utility model does not have counter flange, directly is connected with main product, has reduced manufacturing cost, has shortened the processing and manufacturing time greatly again;
2, top of the present utility model top cover thickening and weld with the bellows wall flange, can tolerate the following ultimate vacuum of 5Pa, can be inconjunction with expander and find time jointly with product together, this can make built-in electrical insulation can contact with air hardly, and applied insulation of electrical installation performance significantly improves.
3, the link of the utility model use significantly reduces, and installation effectiveness can significantly promote.
4, whole device of the present utility model has only two bonding wires, and the chance that produces seepage is very little.
Description of drawings
Fig. 1 is the structural representation of folded formula metal expander in the prior art;
Fig. 2 is the structural representation of corrugated metal expander in the prior art;
Fig. 3 is the overall structure schematic diagram of the simple and easy installing type metal expander of the utility model.
Wherein: expander 1; Outer cover 2; Sealing gasket 3; Trim ring 4; Hexagon socket head cap screw 5; Packing ring 6; Spring washer 7; Nut 8; O shape sealing gasket 9; Stopper 10.
Embodiment
As shown in Figure 3: the simple and easy installing type metal expander of the utility model, comprise expander 1, expander 1 top seals with stopper 10, O grommet type seal 9, the bottom of described expander 1 directly is fastenedly connected by trim ring 4 and product main body with hexagon socket head cap screw 5, packing ring 6, bullet pad 7 and nut 8.A ripple of described expander 1 foot is the rolling moulding, form a burnishing surface after, the middle sealing gasket 3 of placing seals.The top top cover of described expander 1 is thickeied and is welded with the bellows wall flange.
Claims (3)
1. simple and easy installing type metal expander, comprise expander (1), expander (1) top seals with stopper (10), O grommet type seal (9), the bottom that it is characterized in that described expander (1) directly is fastenedly connected by trim ring (4) and product main body with hexagon socket head cap screw (5), packing ring (6), bullet pad (7) and nut (8).
2. simple and easy installing type metal expander according to claim 1 is characterized in that a ripple of described expander (1) foot is the rolling moulding, form a burnishing surface after, the middle sealing gasket (3) of placing seals.
3. simple and easy installing type metal expander according to claim 1 is characterized in that the top top cover thickening of described expander (1) and welds with the bellows wall flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200163997U CN201449842U (en) | 2009-08-18 | 2009-08-18 | Simply-installed type metal expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200163997U CN201449842U (en) | 2009-08-18 | 2009-08-18 | Simply-installed type metal expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201449842U true CN201449842U (en) | 2010-05-05 |
Family
ID=42554564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200163997U Expired - Lifetime CN201449842U (en) | 2009-08-18 | 2009-08-18 | Simply-installed type metal expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201449842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347130A (en) * | 2011-07-21 | 2012-02-08 | 无锡市锡容电力电器有限公司 | Built-in expander |
-
2009
- 2009-08-18 CN CN2009200163997U patent/CN201449842U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347130A (en) * | 2011-07-21 | 2012-02-08 | 无锡市锡容电力电器有限公司 | Built-in expander |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100505 |
|
| CX01 | Expiry of patent term |