CN202165369U - High-strength bolt - Google Patents
High-strength bolt Download PDFInfo
- Publication number
- CN202165369U CN202165369U CN 201120241394 CN201120241394U CN202165369U CN 202165369 U CN202165369 U CN 202165369U CN 201120241394 CN201120241394 CN 201120241394 CN 201120241394 U CN201120241394 U CN 201120241394U CN 202165369 U CN202165369 U CN 202165369U
- Authority
- CN
- China
- Prior art keywords
- bolt
- screw thread
- strength bolt
- utility
- packing ring
- 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 high-strength bolt, which comprises a bolt (1), a gasket (2) and a nut (3), wherein a circle of weld crater (4) is arranged below the head part of the bolt (1); the threaded rod part between the head part of the bolt (1) and the gasket (2) is provided with a first screw thread (5); and the threaded rod part under the gasket (2) is provided with a second screw thread (6). The high-strength bolt still keeps good tightness after the a high-strength bolt is used for a long time.
Description
Technical field
The utility model relates to the mechanical device field, especially relates to a kind of high-strength bolt.
Background technique
High-strength bolt is mainly used on the Steel Structure Work; Be used for connecting the tie point of steel structure steel plate, and only limit single to use, generally be used for permanent connection; But common high-strength bolt has only a nut; Nut can become flexible, wear out after long-term the use, and the welding part also can become flexible after long-time the use because face of weld is more stiff; Common high-strength bolt is not provided with screw thread on the screw rod between packing ring and the bolt head, be smooth cylndrical surface, and bolt is slided, and reduces its fastening ability.
The model utility content
The utility model uses the bad problem of back tightness for a long time in order to solve present high-strength bolt; A kind of high-strength bolt is provided for this reason; Comprise a bolt 1, packing ring 2 and two nuts 3; The lower head of said bolt 1 is provided with a circle soldering opening 4, and the screw portion between the head of said bolt 1 and the packing ring 2 is provided with first screw thread 5, and the screw portion of packing ring below 2 is provided with second screw thread 6.
The utility model high-strength bolt, the internal diameter of said first screw thread 5 equates with the external diameter of second screw thread 6.
The utility model high-strength bolt, said nut 3 comprises two nuts.
The beneficial effect of the utility model is:
Owing to be provided with two nuts, strengthened the tightness of bolt, the soldering opening that adds welds bolt more easily, and more firm; And two kinds of thread of various specifications, the internal diameter of first screw thread equates that with the external diameter of second screw thread it is loosening that bolt is difficult for, and has guaranteed after long-time the use tightness of bolt.
Description of drawings
The utility model will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the utility model high-strength bolt schematic representation.
Embodiment
Disclosed all characteristics in this specification, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this specification (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
High-strength bolt as shown in Figure 1 comprises a bolt 1, packing ring 2 and two nuts 3, has strengthened the tightness of bolt; The lower head of said bolt 1 is provided with a circle soldering opening 4, and bolt is welded more easily, and more firm; Screw portion between the head of said bolt 1 and the packing ring 2 is provided with first screw thread 5; The screw portion of packing ring below 2 is provided with second screw thread 6; The internal diameter of said first screw thread 5 equates with the external diameter of second screw thread 6; It is loosening that bolt is difficult for, and guaranteed that bolt maintains good tightness after long-time the use.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (3)
1. high-strength bolt; Comprise a bolt (1), a packing ring (2) and nut (3); It is characterized in that: the lower head of said bolt (1) is provided with a circle soldering opening (4); Screw portion between the head of said bolt (1) and the packing ring (2) is provided with first screw thread (5), and the screw portion below the packing ring (2) is provided with second screw thread (6).
2. a kind of high-strength bolt according to claim 1 is characterized in that: the internal diameter of said first screw thread (5) equates with the external diameter of second screw thread (6).
3. a kind of high-strength bolt according to claim 1 is characterized in that: said nut (3) comprises two nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120241394 CN202165369U (en) | 2011-07-11 | 2011-07-11 | High-strength bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120241394 CN202165369U (en) | 2011-07-11 | 2011-07-11 | High-strength bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165369U true CN202165369U (en) | 2012-03-14 |
Family
ID=45801197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120241394 Expired - Fee Related CN202165369U (en) | 2011-07-11 | 2011-07-11 | High-strength bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165369U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108838602A (en) * | 2018-07-11 | 2018-11-20 | 中车唐山机车车辆有限公司 | Body framing welding tooling |
-
2011
- 2011-07-11 CN CN 201120241394 patent/CN202165369U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108838602A (en) * | 2018-07-11 | 2018-11-20 | 中车唐山机车车辆有限公司 | Body framing welding tooling |
| CN108838602B (en) * | 2018-07-11 | 2020-08-11 | 中车唐山机车车辆有限公司 | Welding tool for vehicle body framework |
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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: 20120314 Termination date: 20120711 |