CN201401407Y - Low-temperature resistant bridge bolt - Google Patents
Low-temperature resistant bridge bolt Download PDFInfo
- Publication number
- CN201401407Y CN201401407Y CN2009200239445U CN200920023944U CN201401407Y CN 201401407 Y CN201401407 Y CN 201401407Y CN 2009200239445 U CN2009200239445 U CN 2009200239445U CN 200920023944 U CN200920023944 U CN 200920023944U CN 201401407 Y CN201401407 Y CN 201401407Y
- Authority
- CN
- China
- Prior art keywords
- bolt
- stud
- nut
- hitching post
- temperature resistant
- 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
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- Forging (AREA)
- Connection Of Plates (AREA)
Abstract
The utility model discloses a low-temperature resistant bridge bolt, which is characterized in that the bolt comprises a cap and a stud, the entire bolt is formed in one time through cold upsetting, male threads matched with a nut are arranged at one end of the stud, the cap is of a hexagonal structure, the stud is of a cylindrical structure, the nut is of a hexagonal structure and is used for matching with the stud, two washers are arranged, each washer is of a disc-shaped structure with a hole in the middle, and the two washers are sheathed with the stud and used to clamp objects. Through the arrangement, the utility model has the advantages that the comprehensive mechanical performance of the bolt is good when the bolt is used under negative 60 DEG C, and the bolt can satisfy the requirement on the use under extremely cold conditions.
Description
Technical field
The utility model relates to a kind of bolt that is used on the bridge.
Background technique
Low temperature resistant bridge bolt assembly is the important connection part of tall building, highway bridge, railroad bridge etc., the working environment of bridge bolt is to expose in atmosphere, to bear the effect of change impacts power simultaneously, working environment is more abominable, so require the bolt assembly should guarantee certain tensile strength, shock-resistant simultaneously, corrosion-resistant, anti-loosening property is good.Traditional bridge bolt normal temperature performance is passable, but performance variation is very big under the low temperature, does not reach usage requirement.
Summary of the invention
The purpose of this utility model is that a kind of low temperature resistant bridge bolt is provided, and can guarantee under-60 ℃ low temperature that product has good comprehensive mechanical performance, satisfies under the high and cold all over the world condition and uses.
For reaching above purpose, the utility model bolt is made up of bolt cap, hitching post, cold-heading molding of whole bolt arrangement is provided with the outside thread that screws with nut at an end of hitching post, and the bolt cap is a hexagonal structure, hitching post is a cylindrical structure, nut is a hexagonal structure, is used for screwing with hitching post, and packing ring is middle disc-shaped structure with holes, packing ring is provided with two, is enclosed within to be used for the clamping object on the hitching post.
The bridge bolt adopts the superior alloy steel cold-heading molding, and no cutting is finished through automation heat treatment repeatedly; The bridge nut adopts the high-quality forging to cause type, finishes through Overheating Treatment; Packing ring adopts quality steel plate, through impact briquetting, finishes through Overheating Treatment again; Last bolt assembly is through repeatedly surface treatment and postorder are finished dealing with.The external shape of bolt, nut, packing ring and every performance index satisfy usage requirement under-60 ℃ of conditions.
Description of drawings
Fig. 1 is the utility model ssembly drawing
Among the figure 1, hitching post 1.1, bolt cap 1.2 screw threads 2, nut 3, packing ring
Embodiment
As shown in Figure 1, the utility model bolt is made up of bolt cap 1.1, hitching post 1, cold-heading molding of whole bolt arrangement is provided with the outside thread 1.2 that screws with nut 2 at an end of hitching post 1, and bolt cap 1.1 is a hexagonal structure, hitching post 1 is a cylindrical structure, nut 2 is a hexagonal structure, is used for screwing with hitching post 1, and packing ring 3 is middle disc-shaped structure with holes, packing ring 3 is provided with two, is enclosed within to be used for the clamping object on the hitching post 1.
The product structure of low temperature resistant bridge bolt assembly uniqueness, the material of high-quality, advanced person's heat treatment process and process of surface treatment, make product appearance quality, dimensional accuracy, form and position tolerance and comprehensive mechanical performance good, function admirable under the low temperature particularly, and the production rate improves, labor intensity is low, the reduction of cost of production makes product export cold area in a large number, and fine economic benefit and the social benefit of getting arranged.
Claims (1)
1, low temperature resistant bridge bolt, it is characterized in that: bolt is made up of bolt cap, hitching post, cold-heading molding of whole bolt arrangement is provided with the outside thread that screws with nut at an end of hitching post, and the bolt cap is a hexagonal structure, hitching post is a cylindrical structure, nut is a hexagonal structure, is used for screwing with hitching post, and packing ring is middle disc-shaped structure with holes, packing ring is provided with two, is enclosed within to be used for the clamping object on the hitching post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200239445U CN201401407Y (en) | 2009-03-20 | 2009-03-20 | Low-temperature resistant bridge bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200239445U CN201401407Y (en) | 2009-03-20 | 2009-03-20 | Low-temperature resistant bridge bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201401407Y true CN201401407Y (en) | 2010-02-10 |
Family
ID=41661205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200239445U Expired - Fee Related CN201401407Y (en) | 2009-03-20 | 2009-03-20 | Low-temperature resistant bridge bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201401407Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895895A (en) * | 2015-06-05 | 2015-09-09 | 贵州航天精工制造有限公司 | Flat-end light-torque rivet shaft bolt connecting piece and manufacturing method thereof |
-
2009
- 2009-03-20 CN CN2009200239445U patent/CN201401407Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895895A (en) * | 2015-06-05 | 2015-09-09 | 贵州航天精工制造有限公司 | Flat-end light-torque rivet shaft bolt connecting piece and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20130320 |