CN202194906U - Internal expanding type expansion bolt - Google Patents
Internal expanding type expansion bolt Download PDFInfo
- Publication number
- CN202194906U CN202194906U CN 201120318385 CN201120318385U CN202194906U CN 202194906 U CN202194906 U CN 202194906U CN 201120318385 CN201120318385 CN 201120318385 CN 201120318385 U CN201120318385 U CN 201120318385U CN 202194906 U CN202194906 U CN 202194906U
- Authority
- CN
- China
- Prior art keywords
- screw
- section
- screw rod
- hole
- sleeve
- 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
Images
Landscapes
- Dowels (AREA)
Abstract
The utility model discloses an internal expanding type expansion bolt, which comprises a screw and a sleeve, wherein the screw is composed of a thread section and a non-thread section, a nut integrally connected with the screw is arranged at the end head of the thread section of the screw, and the outer diameter of the non-thread section of the screw tapers and contracts to be a sharp head on the end head. The sleeve is composed of an inner thread section and a notch section, wherein the inner thread section of the sleeve is matched with the thread section of the screw, an inner hole of the notch section of the sleeve is a waney inverted cone-shaped hole, the hole diameter of the inner hole increases gradually from the end head of the notch section to the direction of the inner thread section until to be connected with a thread hole of the inner thread section, and concave-convex grains are arranged on the outer wall of the sleeve. The internal expanding type expansion bolt can change stress mode, increase strength of the sleeve, and reinforce combination of the expansion bolt and the hole wall.
Description
Technical field
The utility model relates to a kind of EXPANSION ANCHOR BOLTS, relates in particular to a kind of internal expansion type EXPANSION ANCHOR BOLTS.
Background technique
Traditional expansion bolt is made up of the sleeve pipe of axial five equilibrium otch screw rod, nut and an end.This screw rod one end is the cone shape of footpath, the end greater than screw rod, and its bigger diameter end extends for than the path screw rod, and outside thread is arranged on the screw rod.The cone end of the gap section of sleeve pipe and screw rod is nested together during use, inserts and bores in the good hole, and the other end exposes outside the hole, and being screwed by nut is fixed on screw rod in the hole.Like this, screw rod can stretch out nut, grows one section, and not only hinder other member setting, be repugnant to the eye, mainly be that its structure stress is unreasonable.Because its important stressed member is a screw rod, its bigger diameter end is at the bottom of the hole, and during drilling operation, hand is shaken and made the control of center, hole inaccurate, and the hole collar extension that gets out is big; Dragged when askew when bolt strained, casing wall is thin, and decomposing force is poor, causes nut also to skid off the hole with screw rod, and the function of EXPANSION ANCHOR BOLTS is had a greatly reduced quality.
Summary of the invention
To the problem that above-mentioned existing technology exists, the utility model purpose is to provide a kind of internal expansion type EXPANSION ANCHOR BOLTS, can the conversion force way, increase the intensity of sleeve pipe, and strengthen combining of EXPANSION ANCHOR BOLTS and hole wall.
The technological scheme of the utility model is: a kind of internal expansion type EXPANSION ANCHOR BOLTS, comprise screw rod and sleeve pipe, and said screw rod is made up of thread section and non-threaded section; The termination of screw flight section is provided with the nut that is connected as a single entity with it; Non-threaded section external diameter of screw rod reduces gradually and is punctured into a tip in the termination, and said sleeve pipe is made up of internal thread segment and otch section, the internal thread segment of sleeve pipe and screw flight section coupling; The endoporus of the otch section of sleeve pipe is waney reverse taper hole; Its aperture is increased progressively to the direction of internal thread segment by the termination of otch section gradually, and until being connected with the tapped hole of internal thread segment, said sleeve outer wall is provided with concave-convex grain.
As preferably: said nut is provided with the screw edge of a knife away from the end face of screw rod.
As preferably: the said screw edge of a knife is the straight screwdriver mouth.
As preferably: the said screw edge of a knife is the Philip's head screw edge of a knife.
The beneficial effect of the utility model is: an end of screw rod is provided with the nut that is connected as a single entity with it, can maintain an equal level with the workpiece surface that is fixed when screwing, and has solved the problem that stretch out the screw rod outer end; And when the workpiece that is fixed need be dismantled, can also unload taking-up to screw rod at an easy rate, recover the workpiece former state; The internal thread of sleeve pipe makes itself and screw rod be torqued-up to nut fully, and non-threaded section termination of screw rod is tip, can pierce at the bottom of the workpiece hole; Even the collar extension of workpiece hole does not influence the degree of depth that screw rod gets into workpiece hole greatly yet like this; And the endoporus of the otch section of sleeve pipe is waney reverse taper hole, and its aperture is increased progressively to the direction of internal thread segment by the termination of otch section gradually, thereby makes the otch section thicker near the wall thickness of termination; Thereby strengthened the stress-bearing capability of sleeve pipe in workpiece hole; And force bearing point is in the depths of workpiece hole, and the concave-convex grain of sleeve outer wall can also increase and workpiece hole between frictional force, make the function of the utility model better; Have the screw edge of a knife on the nut, different tools loading and unloading the utility model more convenient to use.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1, screw rod; 2, sleeve pipe; 3, nut.
Embodiment
As a kind of mode of execution of the utility model, as shown in Figure 1, a kind of internal expansion type EXPANSION ANCHOR BOLTS; Comprise screw rod 1 and sleeve pipe 2; Said screw rod 1 is made up of thread section and non-threaded section, and the termination of the thread section of screw rod 1 is provided with the nut 3 that is connected as a single entity with it, and non-threaded section external diameter of screw rod 1 reduces gradually and is punctured into a tip in the termination; Said sleeve pipe 2 is made up of internal thread segment and otch section; The thread section coupling of the internal thread segment of sleeve pipe 2 and screw rod 1, the endoporus of the otch section of sleeve pipe 2 is waney reverse taper hole, its aperture is increased progressively to the direction of internal thread segment by the termination of otch section gradually; Until being connected with the tapped hole of internal thread segment, said sleeve pipe 2 outer walls are provided with concave-convex grain; Said nut 3 is provided with the screw edge of a knife away from the end face of screw rod 1, and the said screw edge of a knife is the straight screwdriver mouth or the Philip's head screw edge of a knife.
One end of the screw rod 1 of the utility model is provided with the nut 3 that is connected as a single entity with it, can maintain an equal level with the workpiece surface that is fixed when screwing, and has solved the problem that stretch out screw rod 1 outer end; And when the workpiece that is fixed need be dismantled, can also unload taking-up to screw rod 1 at an easy rate, recover the workpiece former state; The internal thread of sleeve pipe 2 makes itself and screw rod 1 be torqued-up to nut 3 fully, and non-threaded section termination of screw rod 1 is tip, can pierce at the bottom of the workpiece hole; Even the collar extension of workpiece hole does not influence the degree of depth that screw rod 1 gets into workpiece hole greatly yet like this; And the endoporus of the otch section of sleeve pipe 2 is waney reverse taper hole, and its aperture is increased progressively to the direction near internal thread segment by the termination of otch section gradually, thereby makes the otch section thicker near the wall thickness of termination; Thereby strengthened the stress-bearing capability of sleeve pipe 2 in workpiece hole; And force bearing point is in the depths of workpiece hole, and the concave-convex grain of sleeve pipe 2 outer walls can also increase and workpiece hole between frictional force, make the function of the utility model better; Have the screw edge of a knife on the nut 3, different tools loading and unloading the utility model more convenient to use.
Claims (4)
1. an internal expansion type EXPANSION ANCHOR BOLTS comprises screw rod and sleeve pipe, it is characterized in that: said screw rod is made up of thread section and non-threaded section; The termination of screw flight section is provided with the nut that is connected as a single entity with it; Non-threaded section external diameter of screw rod reduces gradually and is punctured into a tip in the termination, and said sleeve pipe is made up of internal thread segment and otch section, the internal thread segment of sleeve pipe and screw flight section coupling; The endoporus of the otch section of sleeve pipe is waney reverse taper hole; Its aperture is increased progressively to the direction of internal thread segment by the termination of otch section gradually, and until being connected with the tapped hole of internal thread segment, said sleeve outer wall is provided with concave-convex grain.
2. internal expansion type EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that: said nut is provided with the screw edge of a knife away from the end face of screw rod.
3. internal expansion type EXPANSION ANCHOR BOLTS according to claim 2 is characterized in that: the said screw edge of a knife is the straight screwdriver mouth.
4. internal expansion type EXPANSION ANCHOR BOLTS according to claim 2 is characterized in that: the said screw edge of a knife is the Philip's head screw edge of a knife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120318385 CN202194906U (en) | 2011-08-29 | 2011-08-29 | Internal expanding type expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120318385 CN202194906U (en) | 2011-08-29 | 2011-08-29 | Internal expanding type expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194906U true CN202194906U (en) | 2012-04-18 |
Family
ID=45949820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120318385 Expired - Fee Related CN202194906U (en) | 2011-08-29 | 2011-08-29 | Internal expanding type expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194906U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014085422A1 (en) * | 2012-11-27 | 2014-06-05 | Schmoll Daniel T | Interchangeable decorative panel system for shoes, apparel, and accessories |
| CN106907383A (en) * | 2015-12-22 | 2017-06-30 | 上海德也篷房技术有限公司 | A kind of self-locking screw |
| CN114633582A (en) * | 2020-12-15 | 2022-06-17 | 德安百世实业股份有限公司 | Combined strengthening structure of spoke and joint of carbon fiber rim |
| CN116329584A (en) * | 2023-03-10 | 2023-06-27 | 深圳市德威机电设备有限公司 | Numerical control machine tool spindle and workbench thereof |
-
2011
- 2011-08-29 CN CN 201120318385 patent/CN202194906U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014085422A1 (en) * | 2012-11-27 | 2014-06-05 | Schmoll Daniel T | Interchangeable decorative panel system for shoes, apparel, and accessories |
| US9144295B2 (en) | 2012-11-27 | 2015-09-29 | Daniel T. Schmoll | Interchangeable decorative panel system for shoes, apparel, and accessories |
| CN106907383A (en) * | 2015-12-22 | 2017-06-30 | 上海德也篷房技术有限公司 | A kind of self-locking screw |
| CN114633582A (en) * | 2020-12-15 | 2022-06-17 | 德安百世实业股份有限公司 | Combined strengthening structure of spoke and joint of carbon fiber rim |
| CN114633582B (en) * | 2020-12-15 | 2024-02-20 | 德安百世实业股份有限公司 | The combination of carbon fiber rim spokes and joints strengthens the structure |
| CN116329584A (en) * | 2023-03-10 | 2023-06-27 | 深圳市德威机电设备有限公司 | Numerical control machine tool spindle and workbench thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202194906U (en) | Internal expanding type expansion bolt | |
| US9228603B2 (en) | Crack-proof screw | |
| CN201384559Y (en) | Screw-thread nail for skeleton connection | |
| CN101392781A (en) | Expansion bolt | |
| CN202241120U (en) | Tool for quickly taking out copper bush of diesel injector | |
| CN201007308Y (en) | Novel expansive crew bolt | |
| CN203536166U (en) | Positioning nail for oil tank of transformer | |
| CN202125496U (en) | Energy saving self-attack conical head expansion bolt | |
| CN2695712Y (en) | Internal pressure expansion bolt | |
| EP2339189B1 (en) | Screw | |
| CN201034105Y (en) | Self-tapping locking screw | |
| CN204339671U (en) | Be applicable to the die nut regulating guitar neck | |
| CN202556519U (en) | Chisel with three-edge outer edge | |
| CN207961239U (en) | A kind of tensioning wheel central axle sleeve | |
| CN206329606U (en) | A kind of semi-hollow hexagon socket head cap screw | |
| CN201297315Y (en) | Expansion bolt | |
| CN202391889U (en) | Expansion bolt | |
| CN203578866U (en) | Head-replaceable hard alloy taper shank twist drill | |
| CN203696143U (en) | Threaded handle stepped reamer for machining titanium alloy | |
| CN204457491U (en) | Threaded drillpipe | |
| CN104070493B (en) | Universal Water Injection Pump Packing Extractor | |
| CN108868618B (en) | Cast anchoring drill bit convenient for efficient production | |
| CN202690634U (en) | Expansion screw | |
| CN202431215U (en) | Drill bit connecting bar | |
| CN204851921U (en) | Brill tail screw that reliability is high |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chengdu Minjie Manufacturing Engineering Co., Ltd. Assignor: Chengdu Zhilida Technology Co., Ltd. Contract record no.: 2012510000043 Denomination of utility model: Inner enpanding bolt Granted publication date: 20120418 License type: Exclusive License Record date: 20120511 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20120829 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chengdu Minjie Manufacturing Engineering Co., Ltd. Assignor: Chengdu Zhilida Technology Co., Ltd. Contract record no.: 2012510000043 Denomination of utility model: Inner enpanding bolt Granted publication date: 20120418 License type: Exclusive License Record date: 20120511 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |