CN2537850Y - High strength fixing expansion connection fastener - Google Patents
High strength fixing expansion connection fastener Download PDFInfo
- Publication number
- CN2537850Y CN2537850Y CN 02232489 CN02232489U CN2537850Y CN 2537850 Y CN2537850 Y CN 2537850Y CN 02232489 CN02232489 CN 02232489 CN 02232489 U CN02232489 U CN 02232489U CN 2537850 Y CN2537850 Y CN 2537850Y
- Authority
- CN
- China
- Prior art keywords
- expansion
- expansion sleeve
- sleeve pipe
- fixing
- utility
- 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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- Clamps And Clips (AREA)
Abstract
The utility model belongs to a fastener, which in particular relates to a extensive-purpose high intensity fixing expansion connection fastener for the installation of static devices of middle and small vessels and heat exchangers. The utility model is composed of a fixing bolt, a locking nut and a shock-proof enhanced washer, and the utility model is characterized in that an expansion sleeve pipe, an expansion core, and a fixing ring are arranged; a cone-shaped contraction opening is arranged at the bottom of the inner hole of the expansion sleeve pipe, and reverse tooth buckles and a plurality of expansion vertically opening grooves are arranged on the outer surface of the cylinder of the bottom end of the expansion sleeve pipe; the expansion core is transited to the cone from the cylinder and adapts with the inner hole of the expansion sleeve pipe and the cone-shaped contraction opening; the expansion core is arranged in the inner hole of the expansion sleeve pipe, the fixing ring is installed at the upper end opening of the expansion sleeve pipe, and after the locking nut and the shock-proof enforced washer are installed on the fixing bolt from the top to the bottom in sequence, the fixing bolt is penetrated through the fixing part bottom late and screwed tightly in the inner screw hole of the expansion sleeve pipe. The utility model ahs the effects of shock prevention, corrosion prevention, and enforcement fixing, and the utility model widens the fixing installation and using scope of the industrial and civic equipments.
Description
Technical field
The utility model belongs to fastening piece, and the hard-wired high strength fixed expansion of static equipments such as particularly a kind of broad-spectrum medium and small container, heat exchanger connects fastening piece.
Background technique
In the known technology, still continue to use traditional expand tube bolt for the fixed installation of mini-plant and household electric appliance and be connected on the building, and the expand tube bolt promptly is made of outer sleeve, expander roll, pad and nut.During use, usually with outer sleeve and in the expander roll of dress be embedded in the building, the equipment mounting plate is loaded on and is exposed to the outside and has on the externally threaded expander roll, fixes by pad and nut screwing clamping.This structure in use obvious defects is: the outside thread of expand tube is by open-air air corrosion and corrosion, like this, and for owing to shake the fixed equipment that becomes flexible and just can't re-use when fastening again.In addition, outer sleeve is insufficient strength owing to approach, so the fixed installation of suitable especially civilian mini-plant when mounted, when the fixed equipment mounting plate surpassed certain thickness, outer sleeve very easily damaged expander roll.Therefore, the fastening piece of known technology is only applicable to the fixedly fixed installation of civil equipment such as mini-plant and domestic air conditioning.Have certain narrow limitation and reliability for using scope.
The model utility content
Technical problem to be solved in the utility model is: overcome the deficiency in the known technology, provide the hard-wired high strength fixed expansion of static equipments such as a kind of broad-spectrum medium and small container, heat exchanger to connect fastening piece, it has shockproof, corrosion protection, powerful fixing effect, widens the fixed installation using scope in industry and civil equipment.
For addressing the above problem, the technical solution adopted in the utility model is: it be is characterized in that by fixing bolt, locking nut and shockproof reinforcing washer: it also is provided with expansion sleeve, expanded core, conical retaining ring; Described expansion sleeve endoporus bottom is provided with conical contraction mouth, several expansion longitudinal opening grooves that the cylindrical body outer surface of its expansion sleeve bottom is provided with pawl tooth button and communicates with endoporus; Expanded core transits to cone and adapts with expansion sleeve endoporus and conical contraction mouth from cylindrical body; In the expanded core device expansion sleeve endoporus, conical retaining ring device is in the expansion sleeve upper end-hole, and fixing bolt installs successively from top to bottom and passes the fixed block base plate behind locking nut and the shockproof reinforcing washer and the expansion sleeve inner bolt hole screws.
The beneficial effects of the utility model are: can be according to fixed block base plate thickness, and the bolt of apolegamy suitable length.Install and convenient disassembly, durable, solid and reliable, shockproof, corrosion protection, brute force fixes.Adopt the internal thread Placement, avoided the corrosion and the infringement of double threads such as open-air rainwater, humidity.Adopt set one's teeth on edge formula profile of tooth expansion sleeve and conical retaining ring in its structure, the fixedly dynamics after having strengthened expanding has played powerful fixing effect.The employing expanded core expands, and can avoid the damage to expansion sleeve.Shockproof reinforcing washer can avoid parts vibrations or fixed position vibrations to the fixing influence of brute force.Therefore, compared with prior art the utlity model has easy to installly, firm reliability is strong, has characteristics such as shockproof, that corrosion protection is durable.
Description of drawings
Fig. 1 structural representation of the present utility model.
Among the figure: 1 fixing bolt, 2 locking nuts, 3 shockproof reinforcing washers, 4 expansion sleeves, 5 expanded core, 6 retaining rings, 7 conical contraction mouths, 8 pawl tooth buttons, 9 opening slots, 10 fixed block base plates.
Embodiment
Below in conjunction with the drawings and specific embodiments technical characteristics of the present utility model is described further.
All adopt the parts of known technology as Fig. 1 fixing bolt 1, locking nut 2 and shockproof reinforcing washer 3, it also is provided with expansion sleeve 4, expanded core 5, retaining ring 6; Described expansion sleeve 4 endoporus bottom is provided with conical contraction mouth 7,2～4 expansion longitudinal opening grooves 9 that the cylindrical body outer surface of its expansion sleeve 4 bottoms is provided with pawl tooth button 8 and communicates with endoporus; Expanded core 5 transits to cone and adapts with expansion sleeve endoporus and conical contraction mouth from cylindrical body.In expanded core 5 device expansion sleeves 4 endoporus, powerful conical retaining ring 6 devices are embedded into it in building after expansion sleeve 4 upper end-hole, and fixing bolt 1 installs the fixed block base plate 10 that passes outside the building behind locking nut 2 and the spring shockproof reinforcing washer 3 from top to bottom successively and screws with the expansion sleeve inner bolt hole.Above-mentioned fixing bolt and locking nut also can solve the loosening and slide fastener problem of permanent use spiral shell button.If fixed block is permanent not to be dismantled, can fixing bolt and locking nut is integrally welded, can play antitheft effect.
The utility model remedies the parts of no embedded part and fixes, avoided parts be installed in the right angle face parts that remedy no embedded part fix, avoided parts be installed in right angle face dismounting difficulty, parts dismounting back is if no longer installation is easily handled former fixed position.Can be applicable to the fixed installation of static equipments such as middle-size and small-size container, heat exchanger, appliance switch box, cabinet, fixed installations such as instrument control box, cabinet, industry such as the equipment pipe support is fixed, household electric appliance and office equipment are fixing or civil equipment is fixing all can be extensive use of.
Claims (2)
1. a high strength fixed expansion connects fastening piece, and it be is characterized in that by fixing bolt, locking nut and shockproof reinforcing washer: it also is provided with expansion sleeve, expanded core, conical retaining ring; Described expansion sleeve endoporus bottom is provided with conical contraction mouth, several expansion longitudinal opening grooves that the cylindrical body outer surface of its expansion sleeve bottom is provided with pawl tooth button and communicates with endoporus; Expanded core transits to cone and adapts with expansion sleeve endoporus and conical contraction mouth from cylindrical body; In the expanded core device expansion sleeve endoporus, conical retaining ring device is in the expansion sleeve upper end-hole, and fixing bolt installs successively from top to bottom and passes the fixed block base plate behind locking nut and the shockproof reinforcing washer and the expansion sleeve inner bolt hole screws.
2. high strength fixed expansion according to claim 1 connects fastening piece, and it is characterized in that: the expansion longitudinal opening groove on the expansion sleeve is provided with 2～4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02232489 CN2537850Y (en) | 2002-04-25 | 2002-04-25 | High strength fixing expansion connection fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02232489 CN2537850Y (en) | 2002-04-25 | 2002-04-25 | High strength fixing expansion connection fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2537850Y true CN2537850Y (en) | 2003-02-26 |
Family
ID=33707861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02232489 Expired - Fee Related CN2537850Y (en) | 2002-04-25 | 2002-04-25 | High strength fixing expansion connection fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2537850Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026936A (en) * | 2018-09-30 | 2018-12-18 | 中冶交通建设集团有限公司 | A kind of expansion bolt |
-
2002
- 2002-04-25 CN CN 02232489 patent/CN2537850Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026936A (en) * | 2018-09-30 | 2018-12-18 | 中冶交通建设集团有限公司 | A kind of expansion bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |