CN104564960A - Easy-to-disassemble expansion bolt - Google Patents
Easy-to-disassemble expansion bolt Download PDFInfo
- Publication number
- CN104564960A CN104564960A CN201510051813.8A CN201510051813A CN104564960A CN 104564960 A CN104564960 A CN 104564960A CN 201510051813 A CN201510051813 A CN 201510051813A CN 104564960 A CN104564960 A CN 104564960A
- Authority
- CN
- China
- Prior art keywords
- bolt
- expansion sleeve
- expansion
- thread portion
- plus thread
- 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
Links
- 241000587161 Gomphocarpus Species 0.000 claims description 18
- 238000012856 packing Methods 0.000 claims description 6
- 229910000639 Spring steel Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
Abstract
The invention provides an easy-to-disassemble expansion bolt and belongs to the field of bolt manufacturing. The easy-to-disassemble expansion bolt comprises a bolt body, a first nut, a clamping end and an expansion sleeve. A protrusion with a clamping face is arranged at one end, away from a screw portion, of a plus thread portion of the bolt body axially along the bolt body, and the protrusion is connected with the plus thread portion into a whole. The clamping end is arranged at one end, near the plus thread portion, of the expansion sleeve along the direction of the expansion sleeve and connected with the expansion sleeve into a whole. A gap is arranged between the expansion sleeve and the bolt body. During disassembling, the clamping end is fixed with a wrench, the protrusion is screwed clockwise, and the bolt body and the expansion sleeve are enabled to generate relative movement, so that the expansion sleeve is separated from the wall. The easy-to-disassemble expansion bolt has the advantages of high disassembling efficiency and no noise during disassembling, the expansion bolt and the wall are undamaged during disassembling, service life of the expansion bolt is prolonged, and meanwhile labor intensity of constructors is lowered.
Description
Technical field
The present invention relates to bolt and manufacture field, especially relate to a kind of easily detachable expansion bolt.
Background technique
EXPANSION ANCHOR BOLTS the assembling sets such as support, suspension bracket, bracket or equipment is fixed on a kind of special thread link that the bodies of wall such as wall, floor, post use.In prior art, EXPANSION ANCHOR BOLTS generally includes expansion sleeve, bolts and nuts, and one end external diameter of bolt is comparatively large, and the other end offers screw thread, and nut driving is on bolt.Expansion sleeve is sheathed on bolt from the screwed one end of bolt, and expansion sleeve closes on the larger one end of bolt external diameter and has the strip gab arranged along bolt longitudinal axis.During installation, use electric impact drill on body of wall, get out the hole suitable with EXPANSION ANCHOR BOLTS size, then by EXPANSION ANCHOR BOLTS load hole, tightening nut can make bolt, nut, expansion sleeve, between assembling set with body of wall swelling become to be integrated.But, due to expansion sleeve be subject to the extrusion-deformation of bolt after cannot recover voluntarily, install after EXPANSION ANCHOR BOLTS be difficult to pull out, even can damage body of wall.
Number of patent application 201320277974.5 discloses a kind of easily detachable expansion bolt, employing pressure ring designs, expansion sleeve is provided with the first groove and the second groove, by pressure ring from the first groove to the transition of the second groove, play the effect of dismounting EXPANSION ANCHOR BOLTS, but this product is in the process of dismounting EXPANSION ANCHOR BOLTS, need to use hammer bolt, removal efficiency is low, noise is large, and easily cause the damage of bolt to be out of shape, EXPANSION ANCHOR BOLTS recycling effect after dismounting is bad, more serious, during dismounting, EXPANSION ANCHOR BOLTS is embedded in body of wall and cannot extracts, great inconvenience is brought to construction.
Summary of the invention
The present invention is exactly to solve the above-mentioned problems in the prior art, a kind of easily detachable expansion bolt is provided, it is high that it has removal efficiency, noiseless feature during dismounting, EXPANSION ANCHOR BOLTS and body of wall can not be damaged in unloading process, improve the working life of EXPANSION ANCHOR BOLTS, reduce the labor intensity of workmen simultaneously.
For achieving the above object, the technical solution used in the present invention is:
A kind of easily detachable expansion bolt, comprise bolt, first nut and expansion sleeve, described bolt comprises the nail head connected successively, screw part and plus thread portion, the external diameter of described nail head is greater than described screw part external diameter, described screw part and described nail head smooth connection, described expansion sleeve is sheathed on described bolt from the plus thread portion end of described bolt, one end that described expansion sleeve closes on described nail head offer multiple along bolt axis to strip gab, described first nut driving is in described plus thread portion, described plus thread portion is axially arranged with along bolt the projection that has clamp face away from one end of screw part, and described projection is connected as a single entity with plus thread portion and has identical shaft axis, the external diameter of described projection is no more than the external diameter in described plus thread portion, one end that described expansion sleeve closes on plus thread portion is provided with clamping termination and described clamping termination and expansion sleeve are connected as a single entity, and described screw part outer wall is provided with left-hand thread, and described expansion sleeve is threaded with screw part.
The external diameter of described expansion sleeve is less than the external diameter of described clamping termination, on described bolt between the first nut and expansion sleeve, spring washer and plain washer is arranged with successively from plus thread portion, described expansion sleeve is arranged with dismounting packing ring between bare terminal end head and expansion sleeve tail end opening, described projection has at least one pair of clamp face, and described expansion sleeve adopts spring steel material to make.
Compared to existing technology, the invention has the beneficial effects as follows:
1. this device is by screwing the cooperation between the projection of bolt end and clamping termination, and the left handed screw that expansion sleeve inwall matches with screw part outer wall, bolt and expansion sleeve is made to produce relative movement, EXPANSION ANCHOR BOLTS is separated with body of wall, and dismounting is rapidly simple, improves working efficiency, reduce labor intensity, and owing to adopting the method screwed, need not knock in unloading process, avoid the generation of noise.
2. the present invention adopts screwing method to dismantle EXPANSION ANCHOR BOLTS, avoids hammering dismounting to the damage of bolt and screw problem on deformation, significantly improves the working life of EXPANSION ANCHOR BOLTS.
3. the projection of bolt end is provided with clamp face, when screwing, extracting tool can be clipped on protruding clamp face, time saving and energy saving, can prevent again the landing of extracting tool.
4. expansion sleeve of the present invention adopts and can quickly recover to original shape spring steel material making, guarantees the fast quick-recovery of expansion sleeve, ensures the effect of dismounting, improve working efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of first embodiment of the present invention;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is a kind of left side view (regular hexagon end face) of protrusions of the present invention;
Fig. 4 is the another kind of left side view (regular hexagon end face) of protrusions of the present invention;
Fig. 5 is the structural representation of second embodiment of the present invention;
Fig. 6 is the sectional view of Fig. 5;
Fig. 7 is the left side view of Fig. 5.
In figure, 1 is protruding, 2 clamping terminations, 3 first nuts, 4 bolts, 4a plus thread portion, 4b screw part, 4c nail head, 5 dismounting packing rings, 6 expansion sleeves, 7 spring washers, 8 plain washers.
Embodiment
With reference to Figure of description, a kind of easily detachable expansion bolt of the present invention is described in detail below.
Embodiment 1
As Fig. 1, shown in Fig. 2, a kind of easily detachable expansion bolt, comprise bolt 4, first nut 3 and expansion sleeve 6, bolt 4 comprises the nail head 4c connected successively, screw part 4b and plus thread portion 4a, the external diameter of nail head 4c is greater than described screw part 4b external diameter, screw part 4b and nail head 4c smooth connection, expansion sleeve 6 is sheathed on described bolt 4 from the plus thread portion 4a end of described bolt 4, screw part 4b outer wall is provided with left-hand thread, expansion sleeve 6 inwall is also provided with left-hand thread, expansion sleeve 6 is threaded with screw part 4b, one end that expansion sleeve 6 closes on nail head 4c offer multiple along bolt axis to strip gab, first nut 3 screws on described plus thread portion 4a, screw the effect that the first nut 3 plays fastening EXPANSION ANCHOR BOLTS clockwise.
As shown in Figure 3, plus thread portion 4a is axially arranged with along bolt 4 projection that has clamp face away from one end of screw part 4b, and described protruding 1 is connected as a single entity with plus thread portion 4a, protruding cross section is regular hexagon, there are three pairs of clamp faces, the external diameter of protruding 1 is less than the external diameter of described plus thread portion 4a, because external force collision causes the distortion of plus thread portion, the first nut cannot be dismantled in case install in EXPANSION ANCHOR BOLTS process; One end that expansion sleeve 6 closes on plus thread portion 4a is provided with clamping termination 2 along expansion sleeve 6 direction and described clamping termination 2 and expansion sleeve 6 are connected as a single entity.
The external diameter of described expansion sleeve 6 is less than the external diameter of described clamping termination 2, on bolt 4 between the first nut 3 and expansion sleeve 6, be arranged with spring washer 7 and plain washer 8 successively from plus thread portion 4a, the effect of spring washer 7 prevents loosening of the first nut 3, stablizes EXPANSION ANCHOR BOLTS; Expansion sleeve 6 is arranged with between bare terminal end head 2 and expansion sleeve 6 tail end opening and dismantles packing ring 5, this dismounting packing ring is that plain washer can move on expansion sleeve 6, the object of such setting is the damage in order to prevent from clamping the 2 pairs of bodies of wall in termination in unloading process, and expansion sleeve 6 adopts spring steel material to make.Dismounting packing ring 5 also can.
When installing EXPANSION ANCHOR BOLTS, the long 3 ~ 5mm of length of the punching depth ratio expansion sleeve 6 of electric drill in body of wall.
Unloading process is as follows:
1. when dismantling EXPANSION ANCHOR BOLTS, be first rotated counterclockwise the first nut 3, because expansion sleeve 6 is inner at body of wall, screwing the first nut 3 is to allow the extruding force of nail head 4c to expansion sleeve 6 weaken; After the first nut 3 exits a segment distance, due to the quick recovery effects of the cone angle design of nail head 4c and the Elastic Steel of expansion sleeve 6, the active force between expansion sleeve 6 and body of wall is weakened gradually, until nail head 4c deviates from expansion sleeve 6.
2. first clamping termination 2 fixed by spanner, the clamp face of protruding 1 is clamped again by another spanner, screw protruding 1 clockwise, because the inwall of expansion sleeve 6 is provided with left-hand thread, and be threaded with screw part 4b, therefore screw and make bolt 4 and expansion sleeve 6 produce relative movement, expansion sleeve 6 is to going out, and bolt 4 continues to be inserted in body of wall until 4c overhead in top portion is bottom porthole;
3. screw protruding 1 further, utilize body of wall to the reaction force of nail head 4c end face, expansion sleeve 6 is made to continue to move outside body of wall, in moving process, expansion sleeve opening is subject to the extruding of hole wall and external diameter diminishes, and becomes large with the gap of hole wall, when expansion sleeve opening moves to screw part 4b neutral position from nail head 4c, finally clamp clamping termination 2 and plus thread portion 4a with pliers, outwards exert oneself simultaneously, EXPANSION ANCHOR BOLTS entirety is all extracted.
Embodiment 2
As shown in Figure 4, the present embodiment and first embodiment's difference are that protruding end face is quadrilateral, have two pairs of clamp faces.
Unloading process, with embodiment 1, no longer repeats here.
Embodiment 3
As shown in Fig. 5, Fig. 6, Fig. 7, the present embodiment and previous embodiment's difference are that protruding end face is cydariform, and have two pairs of clamp faces, face is in addition curved surface.
Unloading process, with embodiment 1, no longer repeats here.
The above, just explain through diagrams principles more of the present invention, this specification be not the present invention to be confined to shown in described concrete structure and Applicable scope, therefore every corresponding modify of being likely utilized and equivalent, all belong to the scope of the claims that the present invention applies for.
Such as, clamping termination can substitute by arranging a pair clamp face in expansion sleeve end, and the external diameter of clamping termination is suitable with the external diameter of expansion sleeve pipe end, can reach the object of the present invention equally.
Except technical characteristics described in specification, all the other technical characteristicss are those skilled in the art's known technology.
Claims (7)
1. an easily detachable expansion bolt, comprise bolt, the first nut and expansion sleeve, described bolt comprise connect successively nail head, screw part and plus thread portion, described nail head external diameter be greater than described screw part external diameter, described screw part and described nail head smooth connection, described expansion sleeve is sheathed on described bolt from the plus thread portion end of described bolt, one end that described expansion sleeve closes on described nail head offer multiple along bolt axis to strip gab, described first nut driving, in described plus thread portion, is characterized in that:
Described plus thread portion is axially arranged with along bolt the projection that has clamp face away from one end of screw part, and described projection and plus thread portion are connected as a single entity;
Described screw part outer wall is provided with left-hand thread, and is connected with the inner thread of expansion sleeve;
One end that described expansion sleeve closes on plus thread portion is provided with clamping termination along expansion sleeve direction, and described clamping termination and expansion sleeve are connected as a single entity.
2. easily detachable expansion bolt according to claim 1, is characterized in that: the external diameter of described projection is no more than the external diameter in described plus thread portion.
3. easily detachable expansion bolt according to claim 1, is characterized in that: the external diameter of described expansion sleeve is less than the external diameter of described clamping termination.
4. easily detachable expansion bolt according to claim 1, is characterized in that: described expansion sleeve is arranged with elasticity between bare terminal end head and expansion sleeve tail end opening and dismantles packing ring.
5. easily detachable expansion bolt according to claim 1, is characterized in that: described projection has at least one pair of clamp face.
6. easily detachable expansion bolt according to claim 1, is characterized in that: described expansion sleeve adopts spring steel material to make.
7. easily detachable expansion bolt according to claim 1, is characterized in that: on described bolt between the first nut and expansion sleeve, is arranged with spring washer and plain washer successively from plus thread portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510051813.8A CN104564960A (en) | 2015-01-30 | 2015-01-30 | Easy-to-disassemble expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510051813.8A CN104564960A (en) | 2015-01-30 | 2015-01-30 | Easy-to-disassemble expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104564960A true CN104564960A (en) | 2015-04-29 |
Family
ID=53081793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510051813.8A Pending CN104564960A (en) | 2015-01-30 | 2015-01-30 | Easy-to-disassemble expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104564960A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172649A (en) * | 2015-09-23 | 2015-12-23 | 重庆燕蓝科技有限公司 | Vehicle-mounted water tank for off-road vehicle |
| CN105402609A (en) * | 2015-12-13 | 2016-03-16 | 重庆触视科技有限公司 | LED water-cooling lamp system |
| CN109372863A (en) * | 2018-12-17 | 2019-02-22 | 嘉兴钰丰汽车零部件有限公司 | A kind of anti-transfer expansion bolt of gasket-type |
| CN109737126A (en) * | 2018-11-12 | 2019-05-10 | 陈红印 | Superpower anti-slip bolt |
| CN110241954A (en) * | 2019-06-19 | 2019-09-17 | 江苏华特建筑装饰股份有限公司 | Assembled architecture inner partition plate mounting assembly |
| CN113357240A (en) * | 2021-06-11 | 2021-09-07 | 青岛中科国晟动力科技有限公司 | Bolt, expansion bush and expansion bolt assembly |
| CN113393782A (en) * | 2021-06-04 | 2021-09-14 | 绍兴宏通广告有限公司 | Firm shop signboard and installation process thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692076A (en) * | 1985-02-28 | 1987-09-08 | "L'oreal" | Expansion dowel with anchored state indicator |
| CN1417490A (en) * | 2002-10-12 | 2003-05-14 | 周巽 | Expasion metal bolt set capable of being detached from wall and its machining and usage |
| CN2874102Y (en) * | 2005-12-06 | 2007-02-28 | 王庆奇 | Easy dismounting expansion bolt |
| CN101825130A (en) * | 2009-03-03 | 2010-09-08 | 郭振春 | Easily detachable expansion bolt |
| CN202732586U (en) * | 2012-06-25 | 2013-02-13 | 河海大学 | Detachable expansion screw |
| CN204591908U (en) * | 2015-01-30 | 2015-08-26 | 庞平原 | Easily detachable expansion bolt |
-
2015
- 2015-01-30 CN CN201510051813.8A patent/CN104564960A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692076A (en) * | 1985-02-28 | 1987-09-08 | "L'oreal" | Expansion dowel with anchored state indicator |
| CN1417490A (en) * | 2002-10-12 | 2003-05-14 | 周巽 | Expasion metal bolt set capable of being detached from wall and its machining and usage |
| CN2874102Y (en) * | 2005-12-06 | 2007-02-28 | 王庆奇 | Easy dismounting expansion bolt |
| CN101825130A (en) * | 2009-03-03 | 2010-09-08 | 郭振春 | Easily detachable expansion bolt |
| CN202732586U (en) * | 2012-06-25 | 2013-02-13 | 河海大学 | Detachable expansion screw |
| CN204591908U (en) * | 2015-01-30 | 2015-08-26 | 庞平原 | Easily detachable expansion bolt |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172649A (en) * | 2015-09-23 | 2015-12-23 | 重庆燕蓝科技有限公司 | Vehicle-mounted water tank for off-road vehicle |
| CN105402609A (en) * | 2015-12-13 | 2016-03-16 | 重庆触视科技有限公司 | LED water-cooling lamp system |
| CN109737126A (en) * | 2018-11-12 | 2019-05-10 | 陈红印 | Superpower anti-slip bolt |
| CN109372863A (en) * | 2018-12-17 | 2019-02-22 | 嘉兴钰丰汽车零部件有限公司 | A kind of anti-transfer expansion bolt of gasket-type |
| CN110241954A (en) * | 2019-06-19 | 2019-09-17 | 江苏华特建筑装饰股份有限公司 | Assembled architecture inner partition plate mounting assembly |
| CN113393782A (en) * | 2021-06-04 | 2021-09-14 | 绍兴宏通广告有限公司 | Firm shop signboard and installation process thereof |
| CN113393782B (en) * | 2021-06-04 | 2022-12-02 | 绍兴宏通广告有限公司 | Firm shop signboard and installation process thereof |
| CN113357240A (en) * | 2021-06-11 | 2021-09-07 | 青岛中科国晟动力科技有限公司 | Bolt, expansion bush and expansion bolt assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |