CN202468641U - Anti-loosening bolt - Google Patents
Anti-loosening bolt Download PDFInfo
- Publication number
- CN202468641U CN202468641U CN2012200758561U CN201220075856U CN202468641U CN 202468641 U CN202468641 U CN 202468641U CN 2012200758561 U CN2012200758561 U CN 2012200758561U CN 201220075856 U CN201220075856 U CN 201220075856U CN 202468641 U CN202468641 U CN 202468641U
- Authority
- CN
- China
- Prior art keywords
- expanding
- hole
- bolt
- plug
- nut
- 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
- 241001661918 Bartonia Species 0.000 abstract 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 6
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses an anti-loosening bolt, which comprises a screw stem and a nut. An expanding hole with more than one expanding seam is formed at one end of the screw stem, and an expanding plug is plugged in the expanding hole. The expanding hole with more than one expanding seam is processed in the center of the end of the screw stem, and the expanding plug which is slightly larger than the expanding hole is processed in the expanding hole. When the anti-loosening bolt is installed, the expanding plug is wedged into the expanding hole after a workpiece is fixed by the nut, so that the end of the screw stem is expanded by the expanding plug, the diameter of the screw stem is increased, and the nut cannot loosen outwards. Besides, because the expanding plug cannot be taken out easily and the bolt cannot be detached easily, the anti-loosening bolt has an antitheft function.
Description
Technical field
The utility model relates to a kind of anti-loose bolt.
Background technique
Though the bolt performance is good, and is simple in structure, reliability is high; Be widely used, but exist easily loosening this problem, we can say that also this is characteristics of screw thread; Because link exists gap and frequent vibrations, all is the reason that causes bolt looseness, even comes off.In the connection of power grid iron tower, what adopt basically is that bolt connects at present, but because iron tower receives the influence of factor of natural environment for a long time; Cause iron tower to produce frequent vibrations, the bolt that accumulates over a long period will produce loosening, if under boisterous effects such as strong wind; More can aggravate bolt gets loose; Cause the part angle steel to come off, iron tower structural instability and serious accidents such as tower take place down directly endangers power grid security.Because the part artificial origin, the iron tower bolt is dismantled by malice in addition, causes the iron tower structural instability to fall tower and also happens occasionally.
The model utility content
The purpose of the utility model provides a kind of reliable performance, be easy to process, anti-loose bolt easy for installation.
The utility model adopts following technological scheme:
A kind of anti-loose bolt is characterized in that it comprises screw rod and nut, and an end of described screw rod is provided with the bloated hole that has more than one expansion joint (E.J.), is plugged with the plug that expands in the hole of expanding.
The good effect of the utility model is following:
The content of the utility model is bloated hole that has more than one expansion joint (E.J.) of processing at center, bolt shank end, reprocesses a bloated plug that is a bit larger tham the hole of expanding, when mounted; After nut fixed workpiece, the plug wedging of will the expanding hole of expanding strutted the bolt shank end plug that expanded; It is big that the bolt shank diameter becomes, and nut can't outwards become flexible, and owing to the plug that expands can't take out easily; Bolt also can not be disassembled easily, has anti-theft feature concurrently.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model screw rod.
Accompanying drawing 2 is the bloated hole structure schematic representation of the utility model.
Accompanying drawing 3 is the bloated plug structure schematic representation of the utility model.
Accompanying drawing 4 is the utility model user mode figure
In the accompanying drawings: 1 screw rod, 2 nuts, 3 bloated plugs, 4 expansion joint (E.J.)s, 5 bloated holes.
Embodiment
Like accompanying drawing 1,2,3, shown in 4, the anti-loose bolt of a kind of formula is characterized in that it comprises screw rod 1 and nut 2.One end of described screw rod 1 is provided with the bloated hole 5 that has four expansion joint (E.J.)s 4, is plugged with the plug 3 that expands in the hole 5 of expanding.The cross crack of described expansion joint (E.J.) 4 for offering along the inwall in the hole 5 of expanding.The plug 3 that expands is taper, and point diameter is slightly smaller than hole 5 diameters that expand, and the rear end diameter is a bit larger tham hole 5 diameters that expand, and length is a bit larger tham or is equaled hole 5 degree of depth that expand.Material is selected for use than the high grade of bolt material as far as possible.Fill in the bloated hole 5 of 3 wedgings when expanding after, being expanded in screw rod 1 end fills in 3 distendings, and diameter can not become flexible bolt greater than nut 2 internal diameters.Expand and to take out after plug 3 is wedged, bolt can not be dismantled, have anti-theft feature.Shown in accompanying drawing 4, screw rod 1 passes link, uses earlier nut 2 link of screwing, and the bloated hole 5 of the plug 3 wedging screw rods 1 that will expand then makes screw rod 1 end along cross expansion joint (E.J.) 4 distendings, and nut 2 can not be become flexible.The utility model bolt cuts into four expansion joint (E.J.)s 4 along axis, also can cut into one or three expansion joint (E.J.)s 4.Its objective is making the plug 3 that expands by wedging after, the end can be prevented that nut 2 is loosening by distending.
Claims (1)
1. an anti-loose bolt is characterized in that it comprises screw rod (1) and nut (2), and an end of described screw rod (1) is provided with the bloated hole (5) that has more than one expansion joint (E.J.) (4), is plugged with the plug (3) that expands in the hole (5) of expanding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200758561U CN202468641U (en) | 2012-03-02 | 2012-03-02 | Anti-loosening bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200758561U CN202468641U (en) | 2012-03-02 | 2012-03-02 | Anti-loosening bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468641U true CN202468641U (en) | 2012-10-03 |
Family
ID=46916800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200758561U Expired - Fee Related CN202468641U (en) | 2012-03-02 | 2012-03-02 | Anti-loosening bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202468641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043130A (en) * | 2019-12-26 | 2020-04-21 | 陆美球 | Split bolt for preventing nut from loosening |
-
2012
- 2012-03-02 CN CN2012200758561U patent/CN202468641U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043130A (en) * | 2019-12-26 | 2020-04-21 | 陆美球 | Split bolt for preventing nut from loosening |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. HEBEI ELECTRIC POWER CONS Effective date: 20130320 Owner name: HEBEI ELECTRIC POWER CORPORATION ELECTRIC POWER RE Free format text: FORMER OWNER: HEBEI ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20130320 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130320 Address after: 050021 Shijiazhuang Province, Yuhua Province Sports street, South Street, No. 238, No. Patentee after: Electric Power Research Institute of Hebei Electric Power Corporation Patentee after: State Grid Corporation of China Patentee after: Hebei Electric Power Construction & Adjustment Research Institute Address before: 050021 No. 238 South Sports street, Hebei, Shijiazhuang Patentee before: Hebei Electric Power Research Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20160302 |