CN202194915U - Casting repair bolt - Google Patents
Casting repair bolt Download PDFInfo
- Publication number
- CN202194915U CN202194915U CN2011201061095U CN201120106109U CN202194915U CN 202194915 U CN202194915 U CN 202194915U CN 2011201061095 U CN2011201061095 U CN 2011201061095U CN 201120106109 U CN201120106109 U CN 201120106109U CN 202194915 U CN202194915 U CN 202194915U
- Authority
- CN
- China
- Prior art keywords
- screw
- nut
- screw rod
- casting
- threads
- 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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Abstract
The utility model discloses a casting repair bolt, which comprises a nut and a screw. Threads of the screw are in a barb structure, the tail end of the screw is in a shape of a pointed cone, the connecting portion between the screw and the nut is in a structure capable of being twisted and with weak tensile stress, and the screw and the nut are separated when borne tension or side striking. The repair bolt adopts the technical scheme, the threads are in a barb structure, the tolerance of the threads and the gaps is small, occlusion force is large, and filling and occlusion functions are played. After the screw is screwed in a hole, the connecting portion between the screw and the nut is easy to break, only the screw can be left in the casting, heat is much less than that produced by direct welding, so that metallic crystal of the iron casting can not change, and performance of the iron casting is guaranteed.
Description
Technical field
The utility model relates to foundry goods flaw recovery technique field, specifically is a kind of reparation screw that is used to repair the foundry goods crack.
Background technique
The hardness of ironcasting and expansivity, corrosivity etc. are all more special, do not bear the intensity of the extension that produces because of being heated usually.When producing micro-cracks, do not consider hot repair modes occurred frequently such as welding usually,, thereby have influence on the performance of cast iron because can have influence on the metallic crystal structure of ironcasting.
The model utility content
To the problems referred to above, the utility model aim to provide a kind of play firm filling and interlock effect and produce the extremely little foundry goods of heat when repairing repair screw.
For realizing this technical purpose; The scheme of the utility model is: a kind of foundry goods is repaired screw; Comprise nut and screw rod, said screw flight is an overhead structure, and the end of screw rod is the pointed cone type; The connection part of said screw rod and nut is the twisted into two parts structure of weak tensile stress, and nut separates with screw rod when receiving pulling force or side impaction.
Adopt the reparation screw of this programme, because of screw thread is a barb type, the tolerance of screw thread and hole is very little, and snap-in force is bigger, can play the effect of filling, interlock; After in the screw threaded into socket, nut and screw rod connection part are twisted into two parts easily, and only remaining screw rod is stayed in the foundry goods, and little very many of the heat that produces than direct welding can guarantee that the metallic crystal of ironcasting does not change, and guarantee the performance of cast iron.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the screw portion structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is explained further details.
Like Fig. 1, shown in 2; A kind of foundry goods of the utility model is repaired screw; Comprise nut 1 and screw rod 2, the screw thread of said screw rod 2 is an overhead structure, and the end 3 of screw rod is the pointed cone type; Said screw rod 2 is the twisted into two parts structure of weak tensile stress with the connection part 4 of nut 1, and nut 1 separates with screw rod 2 when receiving pulling force or side impaction.
During use, use supporting bit bore earlier, use this screw screwin then, afterwards, pull nut or slight flank attack nut, can it be separated with screw rod, the remaining outside residue section of ironcasting that remains in of polishing can be accomplished reparation.
Nut separates with screw rod, avoids the great amount of heat of cutting and separating generation, has guaranteed the performance of ironcasting.
The above; Be merely the preferred embodiment of the utility model; Not in order to restriction the utility model, every technical spirit according to the utility model to any trickle modification that above embodiment did, be equal to replacement and improve, all should be included within the protection domain of the utility model technological scheme.
Claims (1)
1. a foundry goods is repaired screw; Comprise nut and screw rod, it is characterized in that: said screw flight is an overhead structure, and the end of screw rod is the pointed cone type; The connection part of said screw rod and nut is the twisted into two parts structure of weak tensile stress, and nut separates with screw rod when receiving pulling force or side impaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201061095U CN202194915U (en) | 2011-04-02 | 2011-04-02 | Casting repair bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201061095U CN202194915U (en) | 2011-04-02 | 2011-04-02 | Casting repair bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194915U true CN202194915U (en) | 2012-04-18 |
Family
ID=45949829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201061095U Expired - Fee Related CN202194915U (en) | 2011-04-02 | 2011-04-02 | Casting repair bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736696A (en) * | 2014-12-10 | 2016-07-06 | 西安航空动力控制科技有限公司 | High-pressure plug |
| CN109083912A (en) * | 2018-09-04 | 2018-12-25 | 上海优易嘉机械设备有限公司 | Screw, connection structure and attaching method thereof are protected in anticollision |
-
2011
- 2011-04-02 CN CN2011201061095U patent/CN202194915U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736696A (en) * | 2014-12-10 | 2016-07-06 | 西安航空动力控制科技有限公司 | High-pressure plug |
| CN109083912A (en) * | 2018-09-04 | 2018-12-25 | 上海优易嘉机械设备有限公司 | Screw, connection structure and attaching method thereof are protected in anticollision |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20150402 |
|
| EXPY | Termination of patent right or utility model |