CN204572678U - A kind of EXPANSION ANCHOR BOLTS - Google Patents
A kind of EXPANSION ANCHOR BOLTS Download PDFInfo
- Publication number
- CN204572678U CN204572678U CN201520248577.4U CN201520248577U CN204572678U CN 204572678 U CN204572678 U CN 204572678U CN 201520248577 U CN201520248577 U CN 201520248577U CN 204572678 U CN204572678 U CN 204572678U
- Authority
- CN
- China
- Prior art keywords
- anchor bolts
- expansion anchor
- screw rod
- lock nut
- 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
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- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model discloses a kind of EXPANSION ANCHOR BOLTS, described EXPANSION ANCHOR BOLTS, comprise screw rod, expansion sleeve and lock nut, it is characterized in that screw rod front portion arranges apex point head, the side of apex point head be spirally connected successively CONCENTRIC REDUCER nut, be socketed expansion sleeve, be spirally connected lock nut, the screw flight that lock nut is corresponding with CONCENTRIC REDUCER nut is forward and reverse screw thread, and the opposite side of lock nut is provided with snap ring clamping screw rod.The utility model novel structure, reasonable in design, easy for installation, this EXPANSION ANCHOR BOLTS only need use electric drill directly to pierce bearing, reverse electric drill several angle again, EXPANSION ANCHOR BOLTS fastening effect can be reached, an instrument just can settle at one go, strong operability, and efficiency is high, and greatly improve the safety coefficient of worker, there is extensive dissemination.
Description
Technical field
The utility model belongs to the technical field of bolt, is specifically related to a kind of EXPANSION ANCHOR BOLTS.
Background technique
EXPANSION ANCHOR BOLTS be generally airduct propped up, hang, bracket is fixed on body of wall, the first-class bearing of floor, post is used a kind of special threaded connector.Existing EXPANSION ANCHOR BOLTS is all made up of screw rod, nut and expansion sleeve.Bearing all must first hole with electric drill by this structure, then with hammer, EXPANSION ANCHOR BOLTS is knocked in bearing, then uses spanner rotating nut, and screw front end will be walked about outward, is strutted by expansion sleeve, reaches fastening effect.Each operation all needs three actions, uses three instruments, loaded down with trivial details inconvenience.Present high building stands in great numbers, particularly high-lift operation out of doors, and every many actions all can strengthen certain risk factor.
Model utility content
For problems of the prior art, the utility model object is to provide a kind of EXPANSION ANCHOR BOLTS.
Described EXPANSION ANCHOR BOLTS, comprise screw rod, expansion sleeve and lock nut, it is characterized in that screw rod front portion arranges apex point head, the side of apex point head be spirally connected successively CONCENTRIC REDUCER nut, be socketed expansion sleeve, be spirally connected lock nut, the screw flight that lock nut is corresponding with CONCENTRIC REDUCER nut is forward and reverse screw thread, and the opposite side of lock nut is provided with snap ring clamping screw rod.
Described EXPANSION ANCHOR BOLTS, is characterized in that the enlarged head of described CONCENTRIC REDUCER nut is provided with inclined-plane.
Described EXPANSION ANCHOR BOLTS, is characterized in that described expansion sleeve is provided with away bits groove and breach.
Described EXPANSION ANCHOR BOLTS, is characterized in that described lock nut is provided with locking teeth.
Described EXPANSION ANCHOR BOLTS, is characterized in that described screw rod tail is provided with draw-in groove.
Described EXPANSION ANCHOR BOLTS, is characterized in that described snap ring is " C " type shape, and " C " type shape inner ring is provided with protuberance.
The utility model novel structure, reasonable in design, easy for installation, this EXPANSION ANCHOR BOLTS only need use electric drill directly to pierce bearing, reverse electric drill several angle again, EXPANSION ANCHOR BOLTS fastening effect can be reached, an instrument just can settle at one go, strong operability, and efficiency is high, and greatly improve the safety coefficient of worker, there is extensive dissemination.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is Snap ring structure schematic diagram of the present utility model;
In figure: 1-apex point head, 2-CONCENTRIC REDUCER nut, 3-expansion sleeve, 4-walks to consider groove to be worth doing, 5-lock nut, 51-locking teeth, 6-draw-in groove, 7-snap ring, 71-protuberance, 8-breach, 9-inclined-plane, 10-screw rod.
Embodiment
The utility model is further illustrated below in conjunction with Figure of description.
A kind of EXPANSION ANCHOR BOLTS, comprise screw rod 10, expansion sleeve 3 and lock nut 5, screw rod 10 front portion arranges apex point head 1, and bolt can be made to pierce the bearings such as body of wall easily and effectively; The side of apex point head 1 be spirally connected successively CONCENTRIC REDUCER nut 2, socket expansion sleeve 3, be spirally connected lock nut 5, screw rod 10 screw thread that lock nut 5 is corresponding with CONCENTRIC REDUCER nut 2 is forward and reverse screw thread, and the opposite side of lock nut 5 is provided with snap ring 7 clamping screw rod 10.The enlarged head of CONCENTRIC REDUCER nut 2 is provided with inclined-plane 9.Expansion sleeve 3 is provided with away bits groove 4 and breach 8.Lock nut 5 is provided with locking teeth 51.Screw rod 10 afterbody is provided with draw-in groove 6, clamping rig.Snap ring 7 is " C " type shape, and " C " type shape inner ring is provided with protuberance 71.
During use, first the EXPANSION ANCHOR BOLTS assembled is snapped in rig, rig rotates forward and EXPANSION ANCHOR BOLTS is pierced the bearings such as body of wall, having a lot of assorted bits, calcimines etc., just can flow out through walking to consider to be worth doing groove 4 when brill, prevents assorted bits, calcimine etc. from affecting the degree of blocking of bolt; Screw rod 10 screw thread that lock nut 5 is corresponding with CONCENTRIC REDUCER nut 2 is forward and reverse screw thread, namely lock nut 5 and screw rod 10 are when proceeding to the bearings such as body of wall clockwise, CONCENTRIC REDUCER nut 2 is for rotating counterclockwise, therefore when screw rod 10 is pierced the bearings such as body of wall by rig, lock nut 5 will outwards be walked about, therefore need snap ring 7, the protuberance 71 be provided with by snap ring 7 " C " type shape inner ring blocks screw thread, prevents lock nut 5 from outwards deviating from; Simultaneously CONCENTRIC REDUCER nut 2 will to apex point head 1 place near.The enlarged head of CONCENTRIC REDUCER nut 2 is provided with inclined-plane 9, is to be lockable and reserved space in order to lean on too tight of CONCENTRIC REDUCER nut 2 and apex point head 1 when preventing screw rod 10 from piercing body of wall, and namely inclined-plane 9 can make CONCENTRIC REDUCER nut 2 effectively rollback.Penetrate the bearing desired positions such as body of wall when EXPANSION ANCHOR BOLTS after, rig reverses, namely screw rod 10 rotates counterclockwise, CONCENTRIC REDUCER nut 2 will easily according to counterclockwise producing, the little head of CONCENTRIC REDUCER nut 2 will the breach 8 of dilating expansion sleeve 3, the process that expansion sleeve 3 reverses at screw rod 10, during the breach 8 of i.e. CONCENTRIC REDUCER nut 2 dilating expansion sleeve 3, outwards walk about to prevent expansion sleeve 3, lock nut 5 is provided with locking teeth 51, lock nut 5 just can eat expansion sleeve 3 along screw rod 10 screw thread, effectively prevent expansion sleeve 3 from outwards walking about, effective expansion locking.
Claims (6)
1. an EXPANSION ANCHOR BOLTS, comprise screw rod (10), expansion sleeve (3) and lock nut (5), it is characterized in that screw rod (10) front portion arranges apex point head (1), the side of apex point head (1) is spirally connected CONCENTRIC REDUCER nut (2), socket expansion sleeve (3), the lock nut that is spirally connected (5) successively, screw rod (10) screw thread that lock nut (5) is corresponding with CONCENTRIC REDUCER nut (2) is forward and reverse screw thread, and the opposite side of lock nut (5) is provided with snap ring (7) clamping screw rod (10).
2. EXPANSION ANCHOR BOLTS as claimed in claim 1, is characterized in that the enlarged head of described CONCENTRIC REDUCER nut (2) is provided with inclined-plane (9).
3. EXPANSION ANCHOR BOLTS as claimed in claim 1, is characterized in that described expansion sleeve (3) is provided with away bits groove (4) and breach (8).
4. EXPANSION ANCHOR BOLTS as claimed in claim 1, is characterized in that described lock nut (5) is provided with locking teeth (51).
5. EXPANSION ANCHOR BOLTS as claimed in claim 1, is characterized in that described screw rod (10) afterbody is provided with draw-in groove (6).
6. EXPANSION ANCHOR BOLTS as claimed in claim 1, it is characterized in that described snap ring (7) is " C " type shape, and " C " type shape inner ring is provided with protuberance (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520248577.4U CN204572678U (en) | 2015-04-23 | 2015-04-23 | A kind of EXPANSION ANCHOR BOLTS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520248577.4U CN204572678U (en) | 2015-04-23 | 2015-04-23 | A kind of EXPANSION ANCHOR BOLTS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572678U true CN204572678U (en) | 2015-08-19 |
Family
ID=53865322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520248577.4U Expired - Fee Related CN204572678U (en) | 2015-04-23 | 2015-04-23 | A kind of EXPANSION ANCHOR BOLTS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572678U (en) |
-
2015
- 2015-04-23 CN CN201520248577.4U patent/CN204572678U/en not_active Expired - Fee Related
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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: 20150819 Termination date: 20180423 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |