CN2741303Y - Spring fastening bolt - Google Patents
Spring fastening bolt Download PDFInfo
- Publication number
- CN2741303Y CN2741303Y CN 200420074316 CN200420074316U CN2741303Y CN 2741303 Y CN2741303 Y CN 2741303Y CN 200420074316 CN200420074316 CN 200420074316 CN 200420074316 U CN200420074316 U CN 200420074316U CN 2741303 Y CN2741303 Y CN 2741303Y
- Authority
- CN
- China
- Prior art keywords
- spring
- fastening bolt
- spring fastening
- electric heater
- inserted pin
- 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 - Fee Related
Links
Landscapes
- Resistance Heating (AREA)
Abstract
The utility model relates to a spring fastening bolt used to fix the fastener of an electric heater. The spring fastening bolt comprises an inserted pin 1, a spring 2 and hollow auricles 4. One end of the inserted pin 1 is provided with the spring 2, and the other end of the inserted pin 1 is provided with a thread hole 3. A heater is connected by the fastener, and the two ends of the heater are provided with two hollow auricles 4 used to fix the inserted pin in order to automatically adjust products in a heating or cooling process.
Description
The utility model relates to the spring fastening bolt that a kind of electric heater parts, particularly plastics machinery, rubber manufacturing machinery, the supporting electric heating of chemical fibre equipment are partly used.
Background technology mica electric heater, pottery electric heater, cast aluminium electric heater are the indispensable heating elements of industry such as plastics, rubber, chemical fibre, and at home and abroad demand is bigger on the market.The plain edition fastening bolt of former employing on the electric heater, electric heater is in heating process, be in strong swelling state, and be in contraction state during the state of cooling, heating so repeatedly, it is loosening that it is produced, and can not be close to heated object, heats sharply weakens, and more seriously directly threatens life of product.
Summary of the invention can not be regulated automatically in order to overcome the electric heater securing member, remain tightening state, more can not guarantee the shortcoming in heats and useful life, the utility model provides a kind of spring fastening bolt, and product can be regulated in heating process or during the state of cooling automatically.
The technical scheme that its technical problem that solves the utility model adopts is set up a spring that contends with the geometric ratio strength of expanding with heat and contract with cold at existing plain edition fastening bolt lengthening 40～60mm; Connect outer two ends at fastened body, welding can be by the hollow ear of adorning column type nut latch, is split into the screwed hole that conforms to bolt specification at an end of two ends cylinder latch.
Below in conjunction with accompanying drawing the utility model is further described shown in figure (1), the utility model is made up of a latch 1, spring 2, hollow ear 4, latch 1 one ends are provided with a spring 2, the other end is split into screwed hole 3, the electric heater fastener connects two ends, weld two hollow ears 4 that cylinder latch 1 can be installed, be used for fixing latch.When electric heater in heating or can automatically adjust by the spring on the latch during state of cooling, prolonged the useful life of product.
Claims (1)
- A kind of spring fastening bolt comprises latch 1, spring 2, hollow ear 4.It is characterized in that: an end of latch 1 is provided with spring 2, and the other end is a screwed hole 3, is fixed in electric heating securing member outer wall by hollow ear 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420074316 CN2741303Y (en) | 2004-03-20 | 2004-06-27 | Spring fastening bolt |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420025612.8 | 2004-03-20 | ||
| CN200420025612 | 2004-03-20 | ||
| CN 200420074316 CN2741303Y (en) | 2004-03-20 | 2004-06-27 | Spring fastening bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2741303Y true CN2741303Y (en) | 2005-11-16 |
Family
ID=35351579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420074316 Expired - Fee Related CN2741303Y (en) | 2004-03-20 | 2004-06-27 | Spring fastening bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2741303Y (en) |
-
2004
- 2004-06-27 CN CN 200420074316 patent/CN2741303Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |