CN102758817A - Expansion bolt - Google Patents
Expansion bolt Download PDFInfo
- Publication number
- CN102758817A CN102758817A CN2011101031431A CN201110103143A CN102758817A CN 102758817 A CN102758817 A CN 102758817A CN 2011101031431 A CN2011101031431 A CN 2011101031431A CN 201110103143 A CN201110103143 A CN 201110103143A CN 102758817 A CN102758817 A CN 102758817A
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- CN
- China
- Prior art keywords
- nut
- screw
- screw rod
- expansion
- rod
- 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.)
- Pending
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Abstract
The invention discloses an expansion bolt which comprises a screw with a screw cap, and a nut. The nut and the screw are respectively provided with matched internal and external screw threads; the screw cap is in threaded connection with the screw; the other end of the screw cap relative to the screw is also provided with a plurality of expansion pieces with internal screw threads; and the screw passes through the screw cap to be in threaded connection with the expansion pieces. The expansion bolt has simple structure and low production cost, is easy to manufacture and has good expanding and fastening effects.
Description
Technical field
The present invention is fixed in the EXPANSION ANCHOR BOLTS in the hole about a kind of with part, relates in particular to the sheet material EXPANSION ANCHOR BOLTS and connects.
Background technique
The fastening piece that screw bolt and nut is formed is widely used on numerous occasions such as science and technology, production, processing and test and machinery and the instrument and apparatus.Common bolt does not generally all have auto-lock function, is used in general occasion and can satisfies usage requirement basically.But be used in the bigger occasion of some vibrations, because vibration can cause bolt looseness.Especially on vehicle that goes or dynamic instrument and apparatus, this loosening the lighter who is difficult for discovering influences normally carrying out of work, and weight person can lead to a disaster.So, must use to prevent the self-locking screw that becomes flexible in some special occasions.Being laid on over of stone wall surface such as marble or various nogging manyly directly is layed on the wall with cement; But stone wall surface weight is extremely heavy; The single laying with cement combines that firm inadequately problem is arranged easily, in case run into earthquake or build thing aging, will be difficult to avoid coming off of stone wall surface and the loss that causes lives and properties; The use of therefore just developing swell fixture (wall nail) is so as to strengthening combining of stone wall surface or nogging and its behind wall.Traditional swell fixture is many with the sheathed expansion sleeve be combined into of screw rod, and this expansion sleeve is provided with several profile groove, make expansion sleeve one side can receive against and expand outwardly; This screw rod then is provided with the hole enlargement district of oblique cone shape, when user's desire is fixed in metope with this swell fixture, needs to wear a cinclides at metope; Screw rod is penetrated in the cinclides together with expansion sleeve, and expose to cinclides one end spiral shell in screw rod and establish a nut, nut is screwed to expansion sleeve; Can make expansion sleeve one end urgent, and this expansion sleeve is expanded outwardly and closely be resisted against metope in the hole enlargement district of this screw rod, subsequently that a screw rod and a L shaped plate is affixed; On this L shaped plate, set firmly other sheet material B again, but the metope A that this screw is fixed often there is rough situation, makes swell fixture be difficult for being adjusted into equal length in the use by supporting element C; And for keeping the smooth laying of sheet material B; Need to prepare the L shaped plate 14 of multiple size in addition, make number of spare parts many, cause the problem that construction sequence is complicated, the construction material cost is high.Chinese patent CN200920271773.8 discloses a kind of swell fixture, it is characterized in that, includes: the body of rod, and this body of rod is provided with screw thread, and this body of rod one end is provided with linking department; Sleeve, this jacket casing is located at this body of rod, and this sleeve is provided with at least one grooving, and this grooving extends to an end of this sleeve; First nut, this first nut spiral shell is located at this body of rod, and this first nut is between this linking department and this sleeve; Second nut, this second nut spiral shell is located at this body of rod, and this second nut is positioned at the side of this sleeve away from this first nut; Fixed block, this fixed block spiral shell is located at this body of rod, and this fixed block is positioned at this second nut away from this sleeve one side; This second nut and this fixed block can rotate relative to this body of rod and move, and mutual urgent this body of rod that is fixed in of selectivity.But complex structure, cost of production is high.
Summary of the invention
For solving the deficiency of existing technology, it is a kind of simple in structure that task of the present invention is to provide, and cost of production is low, and sheet material connects EXPANSION ANCHOR BOLTS.
The present invention realizes through following technological scheme: EXPANSION ANCHOR BOLTS; Comprise the screw rod and the nut that have nut; Described nut and screw rod are respectively arranged with the internal and external threads that complements one another; Described nut is connected with screw flight, and described nut also is provided with a plurality of intumescent sheets that have internal thread with respect to an other end of screw rod, and the interspersed nut of described screw rod is threaded with intumescent sheet.
Described nut also is provided with four intumescent sheets that have internal thread with respect to an other end of screw rod.
The top of described intumescent sheet is provided with protruding hoop.
Nut of the present invention also is provided with a plurality of intumescent sheets that have internal thread with respect to an other end of screw rod, and the interspersed nut of described screw rod is threaded with intumescent sheet.Utilize the power of screwing of screw rod, the interspersed nut of screw rod is threaded with intumescent sheet, forces intumescent sheet to dilate distortion, and is firmly fixing at the basic hole perisporium of accomplishing fluently in advance, and the support swelling is solid effective.
Advantage of the present invention is: simple in structure, cost is low, easy to manufacture, the support swelling is solid effective.
Description of drawings
Fig. 1 is a specific embodiment of the invention structural representation.
Fig. 2 is the left view of Fig. 1
Sequence number among the figure: 1, nut, 2, screw rod, 3, nut, 4, intumescent sheet, 5, protruding hoop.
Embodiment
In conjunction with accompanying drawing the specific embodiment of the invention is described in further detail.
Referring to accompanying drawing 1, accompanying drawing 2; A kind of EXPANSION ANCHOR BOLTS comprises the screw rod 2 and nut 3 that have nut 1, and described nut 3 is respectively arranged with the internal and external threads that complements one another with screw rod 2; Described nut 1 is threaded with screw rod 2; Described nut 1 also is provided with four intumescent sheets 4 that have internal thread with respect to an other end of screw rod 2, and described screw rod 2 interspersed nuts 1 are threaded with intumescent sheet 4, and the top of described each intumescent sheet 4 is provided with protruding hoop 5.
Embodiment is just for the ease of understanding technological scheme of the present invention; Do not constitute restriction to protection domain of the present invention; Every interior any simple modification, equivalent variations and modification of perhaps according to technical spirit of the present invention above scheme being done that does not break away from technological scheme of the present invention all still belongs within the protection domain of the present invention.
Claims (3)
1. EXPANSION ANCHOR BOLTS; Comprise the screw rod ⑵ and the nut ⑶ that have nut ⑴; Described nut ⑶ and screw rod ⑵ are respectively arranged with the internal and external threads that complements one another; It is characterized in that: described nut ⑴ is threaded with screw rod ⑵, and described nut ⑴ also is provided with a plurality of intumescent sheet ⑷ that have internal thread with respect to the other end of screw rod ⑵, and the interspersed nut ⑴ of described screw rod ⑵ is threaded with intumescent sheet ⑷.
2. EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that: described nut ⑴ also is provided with four intumescent sheet ⑷ that have internal thread with respect to the other end of screw rod ⑵.
3. EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that: the top of described intumescent sheet ⑷ is provided with protruding hoop ⑸.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101031431A CN102758817A (en) | 2011-04-25 | 2011-04-25 | Expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101031431A CN102758817A (en) | 2011-04-25 | 2011-04-25 | Expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102758817A true CN102758817A (en) | 2012-10-31 |
Family
ID=47053407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101031431A Pending CN102758817A (en) | 2011-04-25 | 2011-04-25 | Expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102758817A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015205A (en) * | 2016-06-29 | 2016-10-12 | 上海球明标准件有限公司 | Embedded fast connection module without damaging assembly parts |
| CN108757678A (en) * | 2018-08-24 | 2018-11-06 | 殷永升 | A kind of fast self-locking mechanical fastener |
-
2011
- 2011-04-25 CN CN2011101031431A patent/CN102758817A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015205A (en) * | 2016-06-29 | 2016-10-12 | 上海球明标准件有限公司 | Embedded fast connection module without damaging assembly parts |
| CN106015205B (en) * | 2016-06-29 | 2018-07-24 | 上海球明标准件有限公司 | A kind of embedded Rapid connecting module not damaging assembly parts |
| CN108757678A (en) * | 2018-08-24 | 2018-11-06 | 殷永升 | A kind of fast self-locking mechanical fastener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121031 |