CN202971478U - Special internal forced expansion bolt for nuclear power - Google Patents
Special internal forced expansion bolt for nuclear power Download PDFInfo
- Publication number
- CN202971478U CN202971478U CN201220490020.8U CN201220490020U CN202971478U CN 202971478 U CN202971478 U CN 202971478U CN 201220490020 U CN201220490020 U CN 201220490020U CN 202971478 U CN202971478 U CN 202971478U
- Authority
- CN
- China
- Prior art keywords
- internal forced
- nuclear power
- plug
- pipe
- compel
- 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
Links
Images
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model relates to a part for nuclear power, in particular to a special internal forced expansion bolt for nuclear power. The utility model mainly solves the technical problem that in the prior art, after being used for a certain time, a screw can be loosened on a sluice gate so as to generate leakage which can cause a safety accident and the like. The special internal forced expansion bolt for nuclear power comprises an internal forced tube (1) and is characterized in that one section inside the internal forced tube (1) is provided with a threaded hole (2); one end of the threaded hole is provided with a cone internal forced plug (3); the inner wall of the internal forced tube is provided with a conical surface (4) matched with the outer surface of the cone internal forced plug; and the position of the cone internal forced plug on the internal forced tube is provided with an expansion tank (5).
Description
Technical field
The utility model relates to a kind of nuclear power component, especially relates to compeling EXPANSION ANCHOR BOLTS in a kind of nuclear power special use.
Background technique
Existing more product all needs to use screw in process of production, particularly in the field of nuclear power gate, screw need to be filled out that in sluice gate, some fixes size and structure, if fixed effect is bad, can cause more sluice gate to be revealed, waste great lot of water resources, even caused security incident.Chinese patent discloses a kind of Polycylinder combination head tapping screw (notice of authorization number: CN201810640U), there is a self tapping flute its termination at screw thread, the head that it is characterized in that screw is combined by the identical part cylinder along garden Zhou Junbu of a plurality of radiuses, at this head, part cylindrical section quantity identical a plurality of the screw grooves identical with a plurality of radiuses are arranged, this head a plurality of screw the groove center line with screw coincides by one respectively plane and the plane combination with the center line oblique of this screw and form, the angle on this two plane is spent greater than 60 less than 90 degree, with the center line oblique plane of this screw oblique be that center from the polycylindser combination head tilts to export-oriented thread section direction.Chinese patent also discloses a kind of automatic locking screw (notice of authorization number: CN201810632U), it is followed successively by from top to bottom and is provided with externally threaded screw head, screw rod and nut, it is characterized in that: screw rod is the hollow screw bar, and hollow screw bar both sides are respectively equipped with slotted hole, the width of slotted hole is less than the internal diameter of hollow screw bar, in the inner chamber of hollow screw bar, spring is set, the spring upper end is provided with plug, the both wings of plug stretch out outside the hollow screw bar by slotted hole, spring is not less than the length of hollow screw bar under free extended configuration, the distance of the both wings of plug is greater than the diameter of nut.But these two kinds of screws are after using one section, and screw can become flexible on sluice gate, leak thereby produce, and then can cause security incident.
The model utility content
The utility model is to provide and compels EXPANSION ANCHOR BOLTS in a kind of nuclear power special use, and it is mainly to solve the existing screw of prior art after using one section, and screw can become flexible on sluice gate, thereby produces leakage, and then can cause the technical problem of security incident etc.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
Compel EXPANSION ANCHOR BOLTS in a kind of nuclear power special use of the present utility model, comprise interior urgent pipe, one section of the inside of described interior urgent pipe is provided with tapped hole, one end of tapped hole is provided with and compels plug in taper, in compel pipe inwall be provided with taper in compel the conical surface that surface beyond the Great Wall is complementary, the interior urgent pipe place that compels the plug place in taper has expansion slot.Can first interior urgent pipe be inserted into fixedly in body of wall or fixed equipment, then screw bolt at the tapped hole place, bolt can promote interior urgent plug and move forward, interior end of compeling pipe just can slowly become large along the conical surface, interior expansion slot of compeling on pipe also can slowly become greatly, until the EXPANSION ANCHOR BOLTS swelling is in the mounting hole of whole fixedly body of wall or fixed equipment.
As preferably, described interior urgent tube end is provided with conical surface transition section connection end.The conical surface transition section can be strengthened the join strength between whole interior urgent pipe and termination.
As preferably, the outer end of described interior urgent pipe is provided with circular arc chamfering, and the outer end of termination is provided with chamfering.Can easily interior urgent pipe be encased in so fixedly in body of wall or fixed equipment.
Therefore, bolt of the present utility model makes the connection of bolt more firm after use, and can play the effect of sealing, and the working life of bolt is longer, thereby can avoid causing security incident, and is simple and reasonable for structure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Component, position and numbering in figure: compel plug 3, the conical surface 4, expansion slot 5, conical surface transition section 6, termination 7, circular arc chamfering 8, chamfering 9 in interior urgent pipe 1, tapped hole 2, taper.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: compel EXPANSION ANCHOR BOLTS in a kind of nuclear power special use of this example, as Fig. 1, comprise interior urgent pipe 1, one section of the inside of interior urgent pipe is provided with tapped hole 2, one end of tapped hole is provided with and compels plug 3 in taper, in compel pipe inwall be provided with taper in compel the conical surface 4 that surface beyond the Great Wall is complementary, the interior urgent pipe place that compels the plug place in taper has expansion slot 5.The interior tube end of compeling is provided with conical surface transition section 6 connection ends 7.Interior outer end of compeling pipe is provided with circular arc chamfering 8, and the outer end of termination 7 is provided with chamfering 9.
During use, at first bore mounting hole on installation base surface, interior urgent pipe 1 is inserted in installation base surface inserting bolt in interior urgent pipe.Then turn bolt, bolt can promote to compel in taper plug 3 motions, and expansion slot 5 increases gradually, and EXPANSION ANCHOR BOLTS can slowly swell along the conical surface 4 of interior urgent pipe inside, until the whole swelling of EXPANSION ANCHOR BOLTS is in the mounting hole of installation base surface.
The above is only specific embodiment of the utility model, but structure characteristic of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the variation of doing or modification all are encompassed among the scope of the claims of the present utility model.
Claims (2)
1. compel EXPANSION ANCHOR BOLTS in a nuclear power special use, comprise interior urgent pipe (1), one section of inside that it is characterized in that described interior urgent pipe (1) is provided with tapped hole (2), one end of tapped hole is provided with and compels plug (3) in taper, in compel pipe inwall be provided with taper in compel the conical surface (4) that surface beyond the Great Wall is complementary, the interior urgent pipe place that compels the plug place in taper has expansion slot (5), and interior urgent pipe (1) end is provided with conical surface transition section (6) connection end (7).
2. compel EXPANSION ANCHOR BOLTS in a kind of nuclear power special use according to claim 1, it is characterized in that the outer end of described interior urgent pipe (1) is provided with circular arc chamfering (8), the outer end of termination (7) is provided with chamfering (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220490020.8U CN202971478U (en) | 2012-09-25 | 2012-09-25 | Special internal forced expansion bolt for nuclear power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220490020.8U CN202971478U (en) | 2012-09-25 | 2012-09-25 | Special internal forced expansion bolt for nuclear power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971478U true CN202971478U (en) | 2013-06-05 |
Family
ID=48512561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220490020.8U Expired - Lifetime CN202971478U (en) | 2012-09-25 | 2012-09-25 | Special internal forced expansion bolt for nuclear power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971478U (en) |
-
2012
- 2012-09-25 CN CN201220490020.8U patent/CN202971478U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102192854B (en) | Fixture structure of large-specification bolt stretching test equipment | |
| CN202809633U (en) | Connecting structure of pre-stressed high-strength concrete (PHC) pipe pile and bearing platform | |
| CN202338350U (en) | Novel continuous resistance increasing deformation anchor rod | |
| CN204418166U (en) | A kind of prestressed concrete pipe pile expansion type fast mechanical connector | |
| CN202971478U (en) | Special internal forced expansion bolt for nuclear power | |
| CN202118049U (en) | Expansion bolt of nuclear power sluice gate | |
| CN201622206U (en) | Jig mechanism for large-sized bolt tensile tester | |
| CN202851575U (en) | Cross-shaped large flat head screw for nuclear power | |
| CN203023206U (en) | Upright post and cross beam connecting structure of screen frame | |
| CN202971505U (en) | Special inner hexagonal hexagon-head screw for nuclear power | |
| CN201605671U (en) | Pull-resistance pre-buried threaded fastening element positioning sleeve pipe | |
| CN202118077U (en) | Hexagonal flange surface bolt of nuclear power sluice gate | |
| CN202971508U (en) | Special slotted countersunk head screw for nuclear power | |
| CN203536166U (en) | Positioning nail for oil tank of transformer | |
| CN202971506U (en) | T-shaped bolt for nuclear power | |
| CN202851581U (en) | Hexagon bolt with strength shank and half threads and used for nuclear power | |
| CN204186715U (en) | A kind of metal rod connector for building of improvement | |
| CN201963689U (en) | Tower crane bolt | |
| CN203823346U (en) | Plugging device for high-strength steel penstock hole | |
| CN202851574U (en) | Double-screw bolt special for nuclear power | |
| CN202851569U (en) | Internal-hexagon-pyramid-end set screw special for nuclear power | |
| CN202833552U (en) | Filter combination screw locking structure | |
| CN202391122U (en) | Waterproof opposite-pull screw rod of wall body | |
| CN205709591U (en) | The novel flexible attachment device of derrick crane | |
| CN206422298U (en) | A kind of magazine repair member |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: AOZHAN INDUSTRIAL CO., LTD. Free format text: FORMER NAME: ZHEJIANG AOZHAN INDUSTRY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 311221, No. 519 Middle Road, Dang Wan Town, Xiaoshan District, Zhejiang, Hangzhou Patentee after: AOZHAN INDUSTRIAL CO.,LTD. Address before: 311221, No. 519 Middle Road, Dang Wan Town, Xiaoshan District, Zhejiang, Hangzhou Patentee before: Zhejiang Aozhan Industry Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |