CN111022463B - Embedded fixed expansion bolt - Google Patents
Embedded fixed expansion bolt Download PDFInfo
- Publication number
- CN111022463B CN111022463B CN201911231744.3A CN201911231744A CN111022463B CN 111022463 B CN111022463 B CN 111022463B CN 201911231744 A CN201911231744 A CN 201911231744A CN 111022463 B CN111022463 B CN 111022463B
- Authority
- CN
- China
- Prior art keywords
- threaded rod
- cutting
- thread
- fixing
- open slot
- 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.)
- Active
Links
- 238000010079 rubber tapping Methods 0.000 claims abstract description 13
- 230000036346 tooth eruption Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
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- 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
- F16B13/002—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose self-cutting
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- 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
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- 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
- F16B13/10—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 with separate gripping parts moved into their final position in relation to the body of the device by a separate operation
Abstract
The invention discloses an embedded fixed expansion bolt, which comprises a bolt body, a plurality of open slots, a plurality of pin shafts, a plurality of fixed bodies and a thread fixing mechanism, wherein the open slots are uniformly distributed at the front end of the bolt body, the upper end of each open slot penetrates through the peripheral surface of the bolt body, a rotatable fixed body is arranged in each open slot through one pin shaft, the lower end of each fixed body exceeds the front end of the open slot, a cutting part is arranged at the high end of each fixed body, a blocking body is arranged at the lower end of each open slot, the thread fixing mechanism is arranged on the bolt body and comprises a T-shaped nut, a tapping part and a thread part, and the tapping part and the thread part are sequentially arranged on the peripheral surface of a small-diameter section of the T-shaped nut from front to back.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of expansion bolts, in particular to the technical field of an embedded fixed expansion bolt.
[ background of the invention ]
The expansion bolt utilizes the wedge-shaped slope to promote expansion to generate friction bond force, thereby achieving the fixing effect. One end of the screw body is provided with a thread, and the other end is provided with a taper. The steel sheet is covered on the outer surface, a plurality of cuts are arranged on one half of the iron sheet cylinder, the steel sheet cylinder and the cuts are plugged into a hole drilled on a wall together, then a nut is locked, the nut pulls the screw body outwards to pull the taper into the steel sheet cylinder, the steel sheet cylinder is expanded, and then the steel sheet cylinder is tightly fixed on the wall and is generally used for fastening protective guards, rain awnings, air conditioners and the like on materials such as cement, bricks and the like. The fixation is realized only by the friction force between the expanded steel cylinder and the wall body, and the fixation point is only one, so that the fixation is not very reliable.
[ summary of the invention ]
The invention aims to solve the problems in the prior art and provides an embedded fixed expansion bolt which is good in fixing reliability and simple in structure.
In order to achieve the purpose, the invention provides an embedded fixed expansion bolt which comprises a bolt body, a plurality of open slots, a plurality of pin shafts, a plurality of fixed bodies and a thread fixing mechanism, wherein the open slots are uniformly distributed at the front end of the bolt body, the upper ends of the open slots penetrate through the peripheral surface of the bolt body, the rotatable fixed bodies are arranged in each open slot through one pin shaft, the lower ends of the fixed bodies exceed the front ends of the open slots, the high ends of the fixed bodies are provided with cutting parts, the lower ends of the open slots are provided with blocking bodies, the bolt body is provided with the thread fixing mechanism, the thread fixing mechanism comprises a T-shaped nut, a tapping part and a thread part, and the tapping part and the thread part are sequentially arranged on the peripheral surface of a small-diameter section of the T-shaped nut from front to back.
Preferably, the tapping portion is formed by a plurality of cutting ridges, and all the cutting ridges are sequentially cut in a front-to-rear order to finally form a thread groove matched with the thread portion on the cut object.
Preferably, the cross section of the large-diameter section of the T-shaped nut is in the shape of a regular polygon.
As preferred, the screw body includes the second threaded rod of first threaded rod, integrated into one piece on first threaded rod rear end and the polished rod body of integrated into one piece on first threaded rod front end, the diameter of the polished rod body is greater than the diameter of first threaded rod, the diameter of first threaded rod is greater than the second threaded rod, the T nut that appears is established on first threaded rod, the pitch on the first threaded rod equals with the pitch of screw portion.
Preferably, the rear end of the second threaded rod is an arc surface.
Preferably, the cutting part comprises a plurality of cutting knives, the front side of the high end of the fixing body is an inclined plane, the cutting knives are formed on the edges except the front edge of the inclined plane, and the high end of the fixing body is contacted with the rear end of the open slot.
Preferably, the cutting part further comprises a plurality of cutting teeth, and the cutting teeth are uniformly distributed on the inclined plane.
Preferably, the lower end of the fixing body is an arc surface.
The invention has the beneficial effects that: according to the invention, the fixing body is arranged in the open slot, when the fixing body is installed, the lower end of the fixing body is abutted against the blind end of the installation blind hole, then the threaded rod is knocked to move towards the blind end of the installation blind hole to drive the fixing body to rotate, the cutting part on the fixing body cuts the hole wall of the installation blind hole to form the blocking groove for embedding the high end of the fixing body, and compared with the traditional friction fixing, the fixing effect is good; be equipped with tapping portion and screw thread portion in proper order after by preceding on global with the minor diameter section of T shape nut, form with screw thread portion matched with thread groove through the cutting of tapping portion to the pore wall of installation blind hole to increase the fixed point, and screw thread portion forms embedded fixed with the screw thread groove cooperation, compare with prior art, can fix good reliability, simple structure.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic view of a construction of an insert-fixed type expansion bolt of the present invention;
fig. 2 is a schematic view of a partial installation of an expansion bolt of the invention in a snap-in fastening type.
In the figure: 1-screw rod body, 2-open slot, 3-pin shaft, 4-fixing body, 5-thread fixing mechanism, 6-inclined plane, 7-blocking body, 8-cutting knife, 9-cutting tooth, 01-blocking slot, 02-installation blind hole, 11-first threaded rod, 12-second threaded rod, 13-polished rod body, 51-T-shaped nut, 52-cutting convex tooth and 53-thread part.
[ detailed description ] embodiments
Referring to fig. 1 and 2, the invention relates to an embedded fixed expansion bolt, which comprises a bolt body 1, a plurality of open slots 2, a plurality of pin shafts 3, a plurality of fixing bodies 4 and a thread fixing mechanism 5, wherein the open slots 2 are uniformly distributed at the front end of the bolt body 1, the upper ends of the open slots 2 penetrate through the circumferential surface of the bolt body 1, the rotatable fixing body 4 is arranged in each open slot 2 through one pin shaft 3, the lower end of the fixing body 4 exceeds the front end of the open slot 2, the high end of the fixing body 4 is provided with a cutting part, the lower end of the open slot 2 is provided with a baffle body 7, the bolt body 1 is provided with the thread fixing mechanism 5, the thread fixing mechanism 5 comprises a T-shaped nut 51, a tapping part and a thread part 53, the tapping part and the thread part 53 are sequentially arranged on the circumferential surface of the small diameter section of the T-shaped nut 51 from front to back, the tapping part is composed of a plurality of cutting convex teeth 52, all cutting convex teeth 52 are sequentially cut from front to back to finally form thread grooves matched with the thread part 53 on a cut body, the cross section of a large-diameter section of the T-shaped nut 51 is in a regular polygon shape, the screw body 1 comprises a first screw rod 11, a second screw rod 12 and a polished rod body 13, the second screw rod 12 is integrally formed at the rear end of the first screw rod 11, the polished rod body 13 is integrally formed at the front end of the first screw rod 11, the diameter of the polished rod body 13 is larger than that of the first screw rod 11, the diameter of the first screw rod 11 is larger than that of the second screw rod 12, the T-shaped nut 51 is arranged on the first screw rod 11, the thread pitch on the first screw rod 11 is equal to that of the thread part 53, the rear end of the second screw rod 12 is an arc surface, the cutting part comprises a plurality of cutting knives 8, the front side of the high end of the fixed body 4 is an inclined surface 6, and the cutting knives 8 are formed on the rest edges of the front edge of the inclined surface 6, the high end of the fixing body 4 is in contact with the rear end of the open slot 2, the cutting part further comprises a plurality of cutting teeth 9, the cutting teeth 9 are uniformly distributed on the inclined plane 6, and the lower end of the fixing body 4 is an arc surface.
The working process of the invention is as follows:
during the working process of the embedded fixed expansion bolt, one end provided with a fixed body 4 is inserted into the installation blind hole 02, then the rear end of the second threaded rod 12 is knocked to enable the threaded rod body 1 to move into the installation blind hole 02, the blind end of the installation blind hole 02 forces the fixed body 4 to rotate until the front end of the first threaded rod 11 is blocked by the blind end of the installation blind hole 02, at the moment, the fixed body 4 is in a vertical state, the lower end of the fixed body 4 is blocked by the blocking body 7, the fixed body 4 drives a cutting part to cut the hole wall of the installation blind hole 02 during the rotation process to form a blocking groove 01 for embedding the high end of the fixed body 4, and then the T-shaped nut 51 is screwed to enable the small-diameter section of the T-shaped nut to be screwed into the installation blind hole 02.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (5)
1. An embedding fixed expansion bolts which is characterized in that: comprises a screw rod body (1), a plurality of open slots (2), a plurality of pin shafts (3), a plurality of fixing bodies (4) and a thread fixing mechanism (5), wherein the front end of the screw rod body (1) is provided with the open slots (2) which are uniformly distributed, the upper end of each open slot (2) runs through the periphery of the screw rod body (1), each open slot (2) is internally provided with the rotatable fixing body (4) through one pin shaft (3), the low end of each fixing body (4) exceeds the front end of the corresponding open slot (2), the high end of each fixing body (4) is provided with a cutting part, the lower end of each open slot (2) is provided with a baffle body (7), the screw rod body (1) is provided with the thread fixing mechanism (5), the thread fixing mechanism (5) comprises a T-shaped nut (51), a tapping part and a thread part (53), the periphery of the small-diameter section of the T-shaped nut (51) is sequentially provided with the tapping part and the thread part (53) from front to back, the tapping portion comprises a plurality of cutting convex teeth (52), and all cutting convex teeth (52) cut in proper order according to the order by preceding to back and finally form the thread groove with screw thread portion (53) matched with on being cut the body, the cutting portion includes a plurality of cutting knives (8), the high-end front side of the fixed body (4) is inclined plane (6), all is formed with cutting knife (8) on the other edges except the front edge of this inclined plane (6), the high-end of the fixed body (4) contacts with the rear end of open slot (2), the cutting portion still includes a plurality of cutting teeth (9), be equipped with evenly distributed's cutting tooth (9) on inclined plane (6).
2. An insertion-fixing type expansion bolt as claimed in claim 1, wherein: the cross section of the large-diameter section of the T-shaped nut (51) is in the shape of a regular polygon.
3. An insertion-fixing type expansion bolt as claimed in claim 1, wherein: the screw rod body (1) includes first threaded rod (11), integrated into one piece second threaded rod (12) and integrated into one piece light rod body (13) on first threaded rod (11) rear end on first threaded rod (11) front end, the diameter of light rod body (13) is greater than the diameter of first threaded rod (11), the diameter of first threaded rod (11) is greater than second threaded rod (12), establish on first threaded rod (11) T shape nut (51), the pitch on first threaded rod (11) equals with the pitch of screw portion (53).
4. An insertion-fixing type expansion bolt as claimed in claim 3, wherein: the rear end of the second threaded rod (12) is an arc surface.
5. An insert-fixing type expansion bolt according to any one of claims 1 to 4, wherein: the lower end of the fixed body (4) is an arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911231744.3A CN111022463B (en) | 2019-12-05 | 2019-12-05 | Embedded fixed expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911231744.3A CN111022463B (en) | 2019-12-05 | 2019-12-05 | Embedded fixed expansion bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111022463A CN111022463A (en) | 2020-04-17 |
| CN111022463B true CN111022463B (en) | 2021-09-24 |
Family
ID=70204282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911231744.3A Active CN111022463B (en) | 2019-12-05 | 2019-12-05 | Embedded fixed expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111022463B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263671B (en) * | 2021-12-29 | 2024-01-19 | 重庆交通大学绿色航空技术研究院 | Connection locking mechanism convenient to dismantle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0834658A2 (en) * | 1996-10-04 | 1998-04-08 | Kabushiki Kaisha Youma Kohboh | Bolt anchoring device |
| CN2286253Y (en) * | 1996-12-27 | 1998-07-15 | 杨卫兵 | Butterfly shape self-opening nut |
| JP2002130230A (en) * | 2000-10-23 | 2002-05-09 | Wakai & Co Ltd | Anchor device |
| CN101065585A (en) * | 2004-12-02 | 2007-10-31 | 机械工程塑料有限公司 | Self-drilling hollow wall anchor |
| CN102644642A (en) * | 2012-05-16 | 2012-08-22 | 裴春光 | Shear-type expansion bolt capable of being hammered |
| CN104564961A (en) * | 2014-12-22 | 2015-04-29 | 宁波市镇海翔遨机电有限公司 | Expansion bolt |
| CN205663714U (en) * | 2016-06-02 | 2016-10-26 | 祁守岗 | Double -disk anchor device |
| CN108397460A (en) * | 2018-03-27 | 2018-08-14 | 芜湖天梦信息科技有限公司 | A kind of expansion fixing piece |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9404992U1 (en) * | 1994-03-23 | 1994-07-28 | Emhart Inc | Holding device |
| AU2003260167B2 (en) * | 2002-09-20 | 2007-09-06 | Ian Ross Griggs | Fixation device |
| AU2002951653A0 (en) * | 2002-09-20 | 2002-10-10 | Ian Griggs | Fixation device |
| CN102359463A (en) * | 2011-08-02 | 2012-02-22 | 裴志胜 | Shear expansion bolt |
| CN102619855A (en) * | 2012-04-06 | 2012-08-01 | 苏州工业园区新凯精密五金有限公司 | Tapping back-off locking nut |
| CN103104270A (en) * | 2013-02-19 | 2013-05-15 | 裴志胜 | Shear type expansion anchor rod and extension application thereof |
| US10132344B2 (en) * | 2016-12-29 | 2018-11-20 | Kabushiki Kaisha Miyanaga | Anchor bolt |
-
2019
- 2019-12-05 CN CN201911231744.3A patent/CN111022463B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0834658A2 (en) * | 1996-10-04 | 1998-04-08 | Kabushiki Kaisha Youma Kohboh | Bolt anchoring device |
| CN2286253Y (en) * | 1996-12-27 | 1998-07-15 | 杨卫兵 | Butterfly shape self-opening nut |
| JP2002130230A (en) * | 2000-10-23 | 2002-05-09 | Wakai & Co Ltd | Anchor device |
| CN101065585A (en) * | 2004-12-02 | 2007-10-31 | 机械工程塑料有限公司 | Self-drilling hollow wall anchor |
| CN102644642A (en) * | 2012-05-16 | 2012-08-22 | 裴春光 | Shear-type expansion bolt capable of being hammered |
| CN104564961A (en) * | 2014-12-22 | 2015-04-29 | 宁波市镇海翔遨机电有限公司 | Expansion bolt |
| CN205663714U (en) * | 2016-06-02 | 2016-10-26 | 祁守岗 | Double -disk anchor device |
| CN108397460A (en) * | 2018-03-27 | 2018-08-14 | 芜湖天梦信息科技有限公司 | A kind of expansion fixing piece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111022463A (en) | 2020-04-17 |
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