CN203670383U - Self-locking expansion bolt for elevator - Google Patents
Self-locking expansion bolt for elevator Download PDFInfo
- Publication number
- CN203670383U CN203670383U CN201320756672.6U CN201320756672U CN203670383U CN 203670383 U CN203670383 U CN 203670383U CN 201320756672 U CN201320756672 U CN 201320756672U CN 203670383 U CN203670383 U CN 203670383U
- Authority
- CN
- China
- Prior art keywords
- section
- bolt
- expansion sleeve
- boss
- expansion
- 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 relates to a self-locking expansion bolt for an elevator. The self-locking expansion bolt is formed by a bolt section, a conical head section, a nut and an expansion sleeve, the nut is installed on the bolt section in a meshed mode, and the conical head section is coaxially sleeved with the expansion sleeve. The bolt section and the conical head section are integrally and coaxially manufactured, a coaxial boss is manufactured between the bolt section and the conical head section, the expansion sleeve is coaxially installed between the boss and a conical head in a sleeved mode, the outer diameter of the boss is larger than or equal to the outer diameter of the expansion sleeve, limiting blocks are manufactured on the boss, the left end of the expansion sleeve is axially and evenly provided with narrow and long opening grooves formed in a spaced mode, two opening parts of each opening groove are provided with outward dip angles respectively, U-type grooves with the diameters slightly larger than the distances between the two edges of the opening grooves are manufactured inside the opening grooves in a connected mode, and the middle of the portion, between the two narrow and long opening grooves, of the outer wall of the expansion sleeve is provided with transverse protruding ribs. By means of the self-locking expansion bolt, the boss and the limiting blocks are arranged, the expansion sleeve can be prevented from axially sliding and prevented from rotating in the radial direction, and the locking effect on the expansion sleeve is achieved.
Description
Technical field
The utility model belongs to EXPANSION ANCHOR BOLTS field, relates to elevator EXPANSION ANCHOR BOLTS, especially a kind of elevator self-lock expansion bolt.
Background technique
At present, the EXPANSION ANCHOR BOLTS of selling on market is mainly made up of conical head screw rod, expansion sleeve, pad and nut, and one end of expansion sleeve is processed with three openings.This EXPANSION ANCHOR BOLTS is to be moved expansion sleeve is strutted and realizes fixingly by conical head screw rod outer, and this just requires the thickness of expansion sleeve thin, and hardness is low.The expansion sleeve that general this EXPANSION ANCHOR BOLTS is used is all the thin sleeve of aluminum, if adopt the higher steel sleeve of hardness, only depends on to screw nut and be difficult to be strutted.Therefore the length of this EXPANSION ANCHOR BOLTS compared with short, intensity compared with low, strength is little, and expansion sleeve easily skids on screw rod, can only be used for house decoration or household electrical appliances and install, and can not be used for strengthening and fixing of elevator, using scope is restricted.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art part, provides that a kind of anchoring strength is high, bearing capacity is strong, has the EXPANSION ANCHOR BOLTS of auto-lock function.
The technological scheme that the utility model technical solution problem adopts is:
A kind of elevator self-lock expansion bolt, the nut of installing by bolt section and conehead section and in the engagement of bolt section, expansion sleeve at conehead section coaxial package forms, bolt section and conehead section one are coaxially made, conehead is built in the end of conehead section, between bolt section and conehead section, be shaped with together crown of roll platform, expansion sleeve coaxial package is between boss and conehead, in the bolt section between boss and nut, coaxial sleeve is equipped with plain washer and spring washer, the external diameter of boss is greater than or equal to the external diameter of expansion sleeve, on boss, be shaped with limiting stopper, described expansion sleeve left end shaft is shaped with slotted opening groove to uniform interval, two opening portions at opening slot are all shaped with outside inclination angle, connect and be shaped with slightly larger in diameter in the U-shaped groove of opening slot two back gauges in the inside of opening slot, between two slotted opening grooves, the middle part of sleeve outer wall is shaped with horizontal convex tendon.
And described inclination angle is 15～20 degree.
And, being coaxially shaped with a groove at right-hand member and the opening slot of expansion sleeve, two opening portions of groove are all made fillet.
And the limiting stopper on described boss is formed on the inside of groove.
Advantage of the present utility model and good effect are:
1, this EXPANSION ANCHOR BOLTS is shaped with together crown of roll platform between bolt section and conehead section, is shaped with limiting stopper on boss, not only can prevent that expansion sleeve from sliding in the axial direction, can also stop expansion sleeve to rotate diametrically, expansion sleeve is played to the effect of locking.
2, this EXPANSION ANCHOR BOLTS is shaped with opening slot at the left end of sleeve, by calculating, the inclination angle of opening slot opening portion can ensure that at 15～20 degree expansion sleeve has maximum outside deformation rate, just can expand fully large pushing force in the situation that not needing to use too, thus can better stopper in the hole wall of concrete or brick wall.
3, this EXPANSION ANCHOR BOLTS is shaped with horizontal convex tendon at the uniform interval of outer wall of sleeve, has not only increased the frictional force between sleeve and hole wall, and has strengthened sleeve support force in the axial direction.Convex tendon be shaped as left low right high arc line type, while making it in patchhole, resistance is little, is also difficult for extracting from hole simultaneously.
Brief description of the drawings
Fig. 1 is plan view of the present utility model
Fig. 2 is the rear view of Fig. 1
Embodiment:
Below in conjunction with accompanying drawing and by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of elevator self-lock expansion bolt, the nut 9 installed by bolt section 6 and conehead section and in the engagement of bolt section, form at the expansion sleeve 2 of conehead section coaxial package, bolt section and conehead section one are coaxially made, conehead 1 is built in the end of conehead section, between bolt section and conehead section, be shaped with together crown of roll platform 5, expansion sleeve coaxial package is between boss and conehead, and in the bolt section between boss and nut, coaxial sleeve is equipped with plain washer 7 and spring washer 8.
Described expansion sleeve left end shaft is shaped with slotted opening groove to uniform interval, is all shaped with outside inclination angle at two opening portions of opening slot, and inclination alpha is 15～20 degree.Connect and be shaped with slightly larger in diameter in the U-shaped groove of opening slot two back gauges in the inside of opening slot.Right-hand member and opening slot at expansion sleeve are coaxially shaped with a groove, and two opening portions of groove are all made fillet.Between two slotted opening grooves, the middle part of sleeve outer wall is shaped with horizontal convex tendon 3.
The external diameter of described boss is greater than or equal to the external diameter of expansion sleeve, on boss, is shaped with limiting stopper 4 corresponding to the inside of expansion sleeve groove.
Main innovation effect of the present utility model is:
1, the design of sleeve openings groove of the present utility model is through Calculation and Analysis of Force, can ensure that expansion sleeve has maximum outside deformation rate, just can expand fully large pushing force in the situation that not needing to use too, thus can better stopper in the hole wall of concrete or brick wall.
2, the utility model is shaped with horizontal convex tendon at the outer wall of sleeve, has not only increased the frictional force between sleeve and hole wall, and has strengthened sleeve support force in the axial direction.
3, the utility model is shaped with boss in bolt section and conehead section, is shaped with limiting stopper on boss, effectively limited sleeve in the axial direction with footpath slippage upwards, make expansion sleeve energy self-locking in hole wall, strengthened the support performance of EXPANSION ANCHOR BOLTS.
Claims (4)
1. an elevator self-lock expansion bolt, the nut of installing by bolt section and conehead section and in the engagement of bolt section, expansion sleeve at conehead section coaxial package forms, bolt section and conehead section one are coaxially made, conehead is built in the end of conehead section, it is characterized in that: between bolt section and conehead section, be shaped with together crown of roll platform, expansion sleeve coaxial package is between boss and conehead, in the bolt section between boss and nut, coaxial sleeve is equipped with plain washer and spring washer, the external diameter of boss is greater than or equal to the external diameter of expansion sleeve, on boss, be shaped with limiting stopper, described expansion sleeve left end shaft is shaped with slotted opening groove to uniform interval, two opening portions at opening slot are all shaped with outside inclination angle, connect and be shaped with slightly larger in diameter in the U-shaped groove of opening slot two back gauges in the inside of opening slot, between two slotted opening grooves, the middle part of sleeve outer wall is shaped with horizontal convex tendon.
2. elevator self-lock expansion bolt according to claim 1, is characterized in that: described inclination angle is 15～20 degree.
3. elevator self-lock expansion bolt according to claim 1, is characterized in that: right-hand member and opening slot at expansion sleeve are coaxially shaped with a groove, and two opening portions of groove are all made fillet.
4. elevator self-lock expansion bolt according to claim 3, is characterized in that: the limiting stopper on described boss is formed on the inside of groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320756672.6U CN203670383U (en) | 2013-11-25 | 2013-11-25 | Self-locking expansion bolt for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320756672.6U CN203670383U (en) | 2013-11-25 | 2013-11-25 | Self-locking expansion bolt for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670383U true CN203670383U (en) | 2014-06-25 |
Family
ID=50966686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320756672.6U Expired - Fee Related CN203670383U (en) | 2013-11-25 | 2013-11-25 | Self-locking expansion bolt for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670383U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286524A (en) * | 2016-10-27 | 2017-01-04 | 沈阳建筑大学 | A kind of torque-shear type self-locking high-strength one-way bolt auxiliary connection and using method thereof |
| CN108063529A (en) * | 2017-12-29 | 2018-05-22 | 上海崇林汽车电子有限公司 | A kind of high efficiency motor stator assembling and disassembling device |
| CN110886753A (en) * | 2018-09-08 | 2020-03-17 | 福建新锐翔机电设备有限公司 | Simple mechanical anchor bolt evaluation method |
-
2013
- 2013-11-25 CN CN201320756672.6U patent/CN203670383U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286524A (en) * | 2016-10-27 | 2017-01-04 | 沈阳建筑大学 | A kind of torque-shear type self-locking high-strength one-way bolt auxiliary connection and using method thereof |
| CN108063529A (en) * | 2017-12-29 | 2018-05-22 | 上海崇林汽车电子有限公司 | A kind of high efficiency motor stator assembling and disassembling device |
| CN108063529B (en) * | 2017-12-29 | 2022-12-13 | 山东双林新能源科技有限公司 | Efficient motor stator assembling and disassembling device |
| CN110886753A (en) * | 2018-09-08 | 2020-03-17 | 福建新锐翔机电设备有限公司 | Simple mechanical anchor bolt evaluation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203559487U (en) | Chemical anchor bolt | |
| CN203670383U (en) | Self-locking expansion bolt for elevator | |
| CN205171694U (en) | Space grid structure does not have round pin bolted connection node | |
| CN203670389U (en) | Limiting expansion bolt for elevator | |
| CN203670384U (en) | High-strength expansion bolt for elevator | |
| CN203670385U (en) | Anti-skidding expansion bolt for elevator | |
| CN203822805U (en) | Combined bolt | |
| CN206559193U (en) | A kind of magnetic suspension motor impeller of rotor quick despatch structure | |
| CN104653566A (en) | High-strength expansion bolt for elevator | |
| CN201874942U (en) | Novel expansion screw | |
| CN204284697U (en) | Petroleum pipeline | |
| CN204267473U (en) | A kind of cement bolt | |
| CN203808433U (en) | Positioning and pull-blasting dry hanging member | |
| CN202597398U (en) | Fastening bolt | |
| CN202431678U (en) | Anti-skidding threaded sleeve | |
| CN204239408U (en) | Anti-axle turns setscrew | |
| CN205780135U (en) | A kind of expansion type high-strength bolt securing member | |
| CN204344629U (en) | A kind of triangle strengthens the little quality bolt of cylinder | |
| CN204437014U (en) | Bearing nut | |
| CN204152937U (en) | For vibrating the threaded anti-loosing structure on the main shaft larger with impact force | |
| CN110762098A (en) | Expansion bolt with clamping block | |
| CN203051396U (en) | Folding head bolt | |
| CN203500225U (en) | Anchor bolt | |
| CN203384176U (en) | Quick-pulling pin of jig | |
| CN203214534U (en) | Half-thread hexagonal bolt |
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: 20140625 Termination date: 20141125 |
|
| EXPY | Termination of patent right or utility model |