CN111075813A - Novel expansion bolt - Google Patents
Novel expansion bolt Download PDFInfo
- Publication number
- CN111075813A CN111075813A CN201911411834.0A CN201911411834A CN111075813A CN 111075813 A CN111075813 A CN 111075813A CN 201911411834 A CN201911411834 A CN 201911411834A CN 111075813 A CN111075813 A CN 111075813A
- Authority
- CN
- China
- Prior art keywords
- nut
- sleeve
- expansion
- bolt
- round hole
- 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
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- F16B13/063—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 by the use of an expander
- F16B13/066—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 by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
- F16B13/068—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 by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like expanded in two or more places
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a novel expansion bolt, which comprises a bolt and a nut in threaded connection with the bolt, wherein a sleeve which slides up and down relative to the bolt is sleeved on the bolt, and the bottom end of the sleeve is welded with the nut; the sleeve is provided with at least three composite holes extending along the axial direction of the sleeve, an expansion sheet is formed between every two adjacent composite holes, the inner surface of each expansion sheet is provided with a folding groove perpendicular to the extending direction of the expansion sheet, and the folding groove is arranged in the middle of the expansion sheet; an annular shoulder plate is arranged at one end of the sleeve pipe, which is far away from the nut, and a plurality of positioning nails extending towards the direction of the nut are arranged on the annular shoulder plate; the positioning nails are distributed in an annular array around the central axis of the sleeve. The expansion bolt has the characteristics of strong grabbing force, firmness in fixation, difficulty in being pulled out, perfect overall function and strong practicability.
Description
Technical Field
The invention relates to the technical field of fasteners, in particular to a novel expansion bolt.
Background
An expansion bolt is a special screw connector for fixing pipeline branch/hanger/bracket or equipment on wall, floor and column. When the bolt is used, holes with corresponding sizes are drilled on the fixing body by using an impact electric drill, then the bolt and the expansion pipe are arranged in the holes, and the bolt, the expansion pipe, the mounting piece and the fixing body can be expanded into a whole by screwing the nut.
However, the expansion pipe on the existing expansion bolt is mostly in an expansion pipe type, the expansion degree is limited, the grabbing force is general, the expansion pipe is fixedly installed on the wall surface or the plate body and then is easily pulled out by large traction force, the safety is not high, and the overall effect is not good.
Accordingly, the invention provides a novel expansion bolt.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a novel expansion bolt which has the characteristics of strong grabbing force, firm fixation and difficulty in being pulled out.
In order to solve the technical problem, the invention aims to realize that: the invention relates to a novel expansion bolt which comprises a bolt and a nut in threaded connection with the bolt, wherein a sleeve which slides up and down relative to the bolt is sleeved on the bolt, and the bottom end of the sleeve is welded with the nut; the sleeve is provided with at least three composite holes extending along the axial direction of the sleeve, expansion pieces are formed between the adjacent composite holes, the inner surfaces of the expansion pieces are provided with folding grooves perpendicular to the extending direction of the expansion pieces, and the folding grooves are arranged in the middle of the expansion pieces.
The invention is further configured to: the one end that the sleeve pipe kept away from the nut is equipped with annular shoulder board, is equipped with a plurality of orientation on the annular shoulder board the location nail that extends of nut direction.
The invention is further configured to: the positioning nails are distributed in an annular array around the central axis of the sleeve.
The invention is further configured to: the composite hole is composed of a first round hole close to the nut, a second round hole far away from the nut, a third round hole arranged between the first round hole and the second round hole, a first strip-shaped hole connected with the first round hole and the third round hole, and a second strip-shaped hole connected with the second round hole and the third round hole.
The invention is further configured to: and the expansion sheet is provided with a reinforcing rib extending along the length direction of the expansion sheet, and the reinforcing rib is arranged above and below the third round hole.
The invention is further configured to: the number of the composite holes is four; the composite holes are distributed in an annular array at equal intervals around the central axis of the sleeve.
The invention is further configured to: the nut is a round nut and the outer diameter of the nut is not larger than that of the sleeve.
In conclusion, the invention has the following beneficial effects: according to the novel expansion bolt, the bolt and the nut are gradually close to each other in the process of rotating relative to the nut, so that the sleeve is extruded, the expansion sheet is folded and unfolded outwards, the expansion sheet is inserted into a fixed position, connection is achieved, a strong grabbing effect is achieved, the novel expansion bolt is firm in fixation, not prone to being pulled out, complete in overall function and high in practicability.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic perspective view of a cannula embodying the present invention;
fig. 3 is a schematic view of the internal structure of the casing according to the present invention.
Detailed Description
In order that those skilled in the art will better understand the novel teachings of the present invention, preferred embodiments of the present invention are described below with reference to specific examples, but it should be understood that these descriptions are only intended to further illustrate the features and advantages of the present invention, and not to limit the patent claims of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention will be further described with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1 to 3, the novel expansion bolt according to the present embodiment includes a bolt 1 and a nut 2 screwed on the bolt 1, wherein a sleeve 3 sliding up and down relative to the bolt 1 is sleeved on the bolt 1, and a bottom end of the sleeve 3 is welded to the nut 2; the sleeve 3 is provided with at least three composite holes 4 extending along the axial direction of the sleeve, expansion sheets 5 are formed between the adjacent composite holes 4, the inner surface of each expansion sheet 5 is provided with a folding groove 6 vertical to the extending direction of the expansion sheet, and the folding groove 6 is arranged in the middle of the expansion sheet 5.
In this embodiment, drill out the hole of corresponding size on the fixed body earlier with electric impact drill, again bolt 1, the welding has in the sleeve pipe 3 dress hole of nut 2, rotating bolt 1, it is close to bolt 1 tip to cause nut 2 to take sleeve pipe 3, and make sleeve pipe 3 extruded, the both ends atress of inflation piece 5, combine offering of folding tank 6, it takes place to deform to make inflation piece 5 in the thinner position of folding tank 6, it forms outside convex pointed end to make its inflation piece 5, and stretch into in the pore wall buried underground gradually, along with bolt 1's continuation rotation, inflation piece 5 expandes the degree higher, the degree of depth that stretches into the pore wall increases, reach stronger effect of snatching, it is fixed firm, be difficult for being extracted.
Wherein, the offering of folding groove 6 for behind the sleeve pipe 3 shaping operation, need not to do the moderate degree uplift with inflation piece 5 through the aftertreatment, avoid receiving extruded in both ends, make inflation piece 5 expand to the inboard, and can not reach "inflation" effect, consequently through the setting of this folding groove 6, made things convenient for sleeve pipe 3's manufacturing, practice thrift one aftertreatment process, make sleeve pipe 3 processing convenient, machining efficiency improves, practices thrift manufacturing cost.
Further, the one end that nut 2 was kept away from to sleeve pipe 3 is equipped with annular shoulder board 7, is equipped with a plurality of orientations on the annular shoulder board 7 the location nail 8 that the nut 2 direction extends, when annular shoulder board 7 pastes the wall or the face of establishing at expansion bolts installation hole site, this face of location nail 8 moderate degree insertion or butt forms fixedly, and prevention bolt 1 is in the pivoted while, pulls nut 2 and sleeve pipe 3 and makes the rotation together, has played and has avoided sleeve pipe 3 pivoted effect, helps the location installation.
Further, the positioning nails 8 are distributed in an annular array around the central axis of the sleeve 3, so that circumferential grabbing and positioning are realized, and the annular shoulder plate 7 is prevented from being driven to rotate under the circumferential steering force.
Further, compound hole 4 is by the first round hole 41 that is close to nut 2, keep away from nut 2's second round hole 42, establish the third round hole 43 between first round hole 41 and second round hole 42, connect the first bar hole 44 of first round hole 41 and third round hole 43, connect second round hole 42 and the second bar hole 45 of third round hole 43 and constitute, the setting of this shape compound hole 4, make the junction width of the last lower extreme of inflation piece 5 and sleeve pipe 3 body narrower, the middle part position width of inflation piece 5 is also narrower in addition, cause when receiving both ends extrusion power, these three position is the most easily takes place deformation, and combine the setting of folding groove 6, make the upper and lower position of inflation piece 5 outwards expand, stretch into the preset position of burying underground gradually.
Furthermore, be equipped with on the inflation piece 5 along the strengthening rib 9 of its length direction extension, strengthening rib 9 is established the upper and lower below of third round hole 43 avoids inflation piece 5 to set up the position of strengthening rib 9 and receives extrusion deformation, strengthens its bending strength.
Further, the number of the composite holes 4 is four; the composite holes 4 are distributed in an annular array at equal intervals around the central axis of the sleeve 3, so that the stress balance and the expansion degree of each expansion sheet 5 are realized, the expansion degree is similar, the sleeve 3 cannot be inclined when being embedded and installed, and the use is convenient.
Further, the nut 2 is a circular nut, the outer diameter of the nut is not larger than that of the sleeve 3, the sleeve 3 welded with the nut 2 is easily inserted into a preset mounting hole, insertion and mounting are facilitated, and operation is more convenient.
According to the novel expansion bolt, the bolt and the nut are gradually close to each other in the process of rotating relative to the nut, so that the sleeve is extruded, the expansion sheet is folded and unfolded outwards, the expansion sheet is inserted into a fixed position, connection is achieved, a strong grabbing effect is achieved, the novel expansion bolt is firm in fixation, not prone to being pulled out, complete in overall function and high in practicability.
Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship actually shown, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, it is possible for those skilled in the art to combine the embodiments and understand the specific meanings of the above terms according to specific situations.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (7)
1. The utility model provides a novel expansion bolts, includes bolt and the nut of threaded connection on the bolt, its characterized in that: the bolt is sleeved with a sleeve which slides up and down relative to the bolt, and the bottom end of the sleeve is welded with the nut; the sleeve is provided with at least three composite holes extending along the axial direction of the sleeve, expansion pieces are formed between the adjacent composite holes, the inner surfaces of the expansion pieces are provided with folding grooves perpendicular to the extending direction of the expansion pieces, and the folding grooves are arranged in the middle of the expansion pieces.
2. The new expansion bolt according to claim 1, characterized in that: the one end that the sleeve pipe kept away from the nut is equipped with annular shoulder board, is equipped with a plurality of orientation on the annular shoulder board the location nail that extends of nut direction.
3. The new expansion bolt according to claim 2, characterized in that: the positioning nails are distributed in an annular array around the central axis of the sleeve.
4. A new expansion bolt according to any one of claims 1-3, characterised in that: the composite hole is composed of a first round hole close to the nut, a second round hole far away from the nut, a third round hole arranged between the first round hole and the second round hole, a first strip-shaped hole connected with the first round hole and the third round hole, and a second strip-shaped hole connected with the second round hole and the third round hole.
5. The new expansion bolt according to claim 4, characterized in that: and the expansion sheet is provided with a reinforcing rib extending along the length direction of the expansion sheet, and the reinforcing rib is arranged above and below the third round hole.
6. The new expansion bolt according to claim 1, characterized in that: the number of the composite holes is four; the composite holes are distributed in an annular array at equal intervals around the central axis of the sleeve.
7. The new expansion bolt according to claim 1, characterized in that: the nut is a round nut and the outer diameter of the nut is not larger than that of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911411834.0A CN111075813A (en) | 2019-12-31 | 2019-12-31 | Novel expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911411834.0A CN111075813A (en) | 2019-12-31 | 2019-12-31 | Novel expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111075813A true CN111075813A (en) | 2020-04-28 |
Family
ID=70321130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911411834.0A Pending CN111075813A (en) | 2019-12-31 | 2019-12-31 | Novel expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111075813A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2464976Y (en) * | 2001-01-10 | 2001-12-12 | 罗惠琼 | Thin wall expanding screw |
| CN2861588Y (en) * | 2005-06-07 | 2007-01-24 | 上海罗凯信息技术有限公司 | Anchor bolt |
| CN202132333U (en) * | 2010-12-31 | 2012-02-01 | 江苏振亚特种螺钉有限公司 | Expansion bolt |
| CN206487734U (en) * | 2016-12-21 | 2017-09-12 | 久可工业股份有限公司 | It can prevent from expanding incomplete expansion bolt |
| CN108506304A (en) * | 2017-04-15 | 2018-09-07 | 裴志胜 | A kind of high strong pluck-resistant anchoring piece with bending slot |
| CN209398688U (en) * | 2018-11-05 | 2019-09-17 | 裴俊 | Adaptive folded expansion bolt |
-
2019
- 2019-12-31 CN CN201911411834.0A patent/CN111075813A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2464976Y (en) * | 2001-01-10 | 2001-12-12 | 罗惠琼 | Thin wall expanding screw |
| CN2861588Y (en) * | 2005-06-07 | 2007-01-24 | 上海罗凯信息技术有限公司 | Anchor bolt |
| CN202132333U (en) * | 2010-12-31 | 2012-02-01 | 江苏振亚特种螺钉有限公司 | Expansion bolt |
| CN206487734U (en) * | 2016-12-21 | 2017-09-12 | 久可工业股份有限公司 | It can prevent from expanding incomplete expansion bolt |
| CN108506304A (en) * | 2017-04-15 | 2018-09-07 | 裴志胜 | A kind of high strong pluck-resistant anchoring piece with bending slot |
| CN209398688U (en) * | 2018-11-05 | 2019-09-17 | 裴俊 | Adaptive folded expansion bolt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016094318A1 (en) | Fastener with loop or hook | |
| CN104776625B (en) | A kind of solar panels installation frame | |
| CN111075813A (en) | Novel expansion bolt | |
| CN210194608U (en) | Spiral connection structure of circular steel-pipe pile | |
| KR102195528B1 (en) | Prefabricated dome house | |
| CN202090529U (en) | Connecting member for upright posts and transverse tubes of stair | |
| CN204784057U (en) | Self -threading screw | |
| CN210263031U (en) | Ground anchor pile for solar photovoltaic power generation equipment | |
| CN209855214U (en) | Scissor-bracing steel pipe connector | |
| KR200329679Y1 (en) | An implement which fixes reinforcing pipe to unit truss structure | |
| CN108443196B (en) | Connection structure of electric fan support column | |
| CN208024674U (en) | A kind of connection inserted link | |
| CN212056106U (en) | Screw rod connecting joint for anti-seismic combined support | |
| CN101715756B (en) | Folding ice drill | |
| CN205742949U (en) | The tool temporary support of prefabricated assembled air-conditioning plate | |
| CN201574384U (en) | Foldable ice drill | |
| CN218760806U (en) | Novel expansion bolt | |
| CN203701475U (en) | Guard bar with face pipe and stand column in expansion connection | |
| CN216715483U (en) | Metal fastener capable of being assembled and disassembled quickly | |
| CN212658873U (en) | Overhead optical cable fixing device | |
| CN212360405U (en) | Improved eccentric pipe structure | |
| KR102221901B1 (en) | A method for manufacturing a stone supportingdevice for seismic design and a stone supportingdevice for seismic design | |
| CN218028584U (en) | Flexible connection guardrail at building shockproof joint | |
| CN209925373U (en) | Antiskid steel pipe fastening external member | |
| CN217419941U (en) | Connecting structure of steel pipe concrete column and steel structure cross beam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20200428 |