CN107355458B - Improved expansion screw - Google Patents
Improved expansion screw Download PDFInfo
- Publication number
- CN107355458B CN107355458B CN201710547301.XA CN201710547301A CN107355458B CN 107355458 B CN107355458 B CN 107355458B CN 201710547301 A CN201710547301 A CN 201710547301A CN 107355458 B CN107355458 B CN 107355458B
- Authority
- CN
- China
- Prior art keywords
- expansion
- conical
- screw
- screw rod
- arc
- 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
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 241000251468 Actinopterygii Species 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 description 4
- 238000000034 method Methods 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
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 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
- 239000004065 semiconductor Substances 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)
- Dowels (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses an improved expansion screw which comprises an expansion sleeve, an expansion bolt, an expansion body, a fastening nut, a plurality of supporting bodies, a plurality of expansion parts, a positioning part, a fixing nut, a plurality of grooves and a plurality of sliding seats, wherein the expansion bolt consists of a cylindrical part, a conical part integrally formed at the rear end of the cylindrical part and a screw rod body integrally formed at the rear end of the conical part, the positioning part is arranged at the free end of the screw rod body, the expansion sleeve, the expansion body, the fixing nut in threaded connection and the fastening nut in threaded connection are sequentially sleeved on the screw rod body from front to back, the expansion parts which are uniformly distributed are arranged at the front end and the rear end of the expansion sleeve, the supporting bodies are sleeved on the free ends of the expansion parts, and the sliding seats are arranged on the inner side surfaces of the supporting bodies.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of expansion screws, in particular to the technical field of improved expansion screws which are more suitable for the diameter range of mounting holes.
[ background of the invention ]
The expansion bolt is used for fixing an object on a wall body or a plate body, and the principle is that the wedge-shaped inclination is utilized to promote expansion so as to achieve the fixing effect. The existing expansion bolt consists of a bolt, a nut and an expansion sleeve, wherein the bolt is provided with a conical end head, one end of the expansion sleeve is provided with a narrow-slit notch, when the expansion bolt is used, a mounting hole is drilled on a wall or a plate body, then an expansion pipe and a screw rod are drilled into the mounting hole, then a head threaded end of a Kong Taozai drop rod of equipment is installed, and finally the nut is screwed on the head threaded end of the pull rod to fix the equipment on the wall; the fastening device is generally used for fastening guard rails, rain canopies, air conditioners and the like on materials such as cement, bricks and the like.
In the prior art, the requirement of the expansion bolt on the mounting hole is generally slightly smaller than the diameter of the expansion sleeve in a natural state, the expansion bolt needs to be knocked during mounting, and the contact surface between the action surface of the expansion sleeve and the hole wall of the mounting hole is small, so that the mounting is inconvenient, the range of the adaptive mounting hole diameter is small, and the fixing reliability is poor.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides an improved expansion screw which is convenient to install, improves the fixing reliability, and greatly improves the range of the adaptive installation aperture.
In order to achieve the purpose, the invention provides an improved expansion screw, which comprises an expansion sleeve, an expansion bolt, an expansion body, a fastening nut, a plurality of supporting bodies, a plurality of expansion parts, a positioning part, a fixing nut, a plurality of grooves and a plurality of sliding seats, wherein the expansion bolt is composed of a cylindrical part, a conical part integrally formed at the rear end of the cylindrical part and a screw body integrally formed at the rear end of the conical part, the positioning part is arranged at the free end of the screw body, the expansion sleeve, the expansion body, the fixing nut in threaded connection and the fastening nut in threaded connection are sequentially sleeved on the screw body from front to back, the expansion parts are uniformly distributed at the front end and the rear end of the expansion sleeve, the supporting bodies are sleeved on the free ends of the expansion parts, the sliding seats are arranged on the inner side surfaces of the supporting bodies, the lower ends of the sliding seats are inclined surfaces, the grooves matched with the sliding seats are arranged on the conical surfaces of the conical part and the expansion body, the lower ends of the sliding seats are attached to the bottoms of the grooves, the grooves on the conical surface of the conical part extend forwards to the peripheral surface of the expansion body, and the cylindrical surface of the expansion body.
Preferably, the front end of the fixing nut is provided with an annular body abutting against the rear end of the expansion body, and the front end of the annular body is a cambered surface.
Preferably, the outer side surface of the support body is a circular arc-shaped plane, and the scale patterns are uniformly distributed on the outer side surface of the support body.
Preferably, the support body is provided with an arc-shaped groove into which the free end of the expansion part can be inserted.
Preferably, the inner side surface of the free end of the expansion part is an inclined surface, and the high end of the inclined surface is connected with the outer side surface of the free end of the expansion part through an arc surface matched with the top end of the arc-shaped groove.
Preferably, the circumferential surface of the screw rod body is provided with accommodating grooves which can accommodate the sliding seat and correspond to the grooves on the conical surface of the expansion body one to one, and the grooves on the conical surface of the expansion body are communicated with the accommodating grooves.
Preferably, the cross section of the positioning part is square, and the length of the diagonal line of the positioning part is not greater than the diameter of the screw body.
The invention has the beneficial effects that: the expansion bolt is fixed on the positioning part through the spanner clamp to prevent rotation, then the fixing nut is rotated to push the expansion body to move forwards, the support body is opened through the conical surfaces of the conical part and the expansion body until the support body is tightly pressed and fixed on the hole wall of the mounting hole, under the condition that the diameters of the large ends of the conical surfaces of the conical part and the expansion body are fixed, the lifting height of the support body is greatly increased through the matching of the groove and the sliding seat, the contact area between the support body and the hole wall of the mounting hole is increased through the use of the support body, compared with the prior art, the expansion bolt is convenient to mount, the fixing reliability is improved, and the range of the adaptive mounting hole diameter is greatly improved.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic view of an improved expansion screw according to the present invention;
fig. 2 is a distribution diagram of fish scale marks.
In the figure: 1-expansion sleeve, 2-expansion bolt, 3-expansion body, 4-fastening nut, 5-support body, 6-expansion part, 7-arc groove, 8-fish scale pattern, 9-inclined plane, 10-arc surface, 11-positioning part, 12-fixing nut, 13-groove, 14-sliding seat, 15-ring body, 16-holding groove, 21-cylinder part, 22-cone part and 23-screw rod body.
[ detailed description ] A
Referring to fig. 1 and 2, the improved expansion screw of the present invention comprises an expansion sleeve 1, an expansion bolt 2, an expansion body 3, a fastening nut 4, a plurality of supporting bodies 5, a plurality of expansion portions 6, a positioning portion 11, a fixing nut 12, a plurality of grooves 13 and a plurality of sliding seats 14, wherein the expansion bolt 2 is composed of a cylindrical portion 21, a conical portion 22 integrally formed at the rear end of the cylindrical portion 21 and a screw body 23 integrally formed at the rear end of the conical portion 22, the positioning portion 11 is arranged at the free end of the screw body 23, the expansion sleeve 1, the expansion body 3, the fixing nut 12 in threaded connection and the fastening nut 4 in threaded connection are sequentially sleeved on the screw body 23 from front to back, the expansion portions 6 are uniformly distributed at the front and back ends of the expansion sleeve 1, the supporting bodies 5 are sleeved on the free ends of the expansion portions 6, the sliding seats 14 are arranged on the inner side surfaces of the supporting bodies 5, and the lower ends of the sliding seats 14 are inclined surfaces, the expansion part comprises a conical part 22 and an expansion body 3, wherein the conical surfaces of the conical part 22 and the expansion body 3 are respectively provided with a groove 13 matched with a sliding seat 14, the lower end of the sliding seat 14 is attached to the bottom of the groove 13, the groove 13 on the conical part 22 extends forwards until penetrating through the circumferential surface of a cylindrical part 21, the groove 13 on the conical surface of the expansion body 3 extends backwards until penetrating through the cylindrical surface of the expansion body 3, the front end of a fixing nut 12 is provided with an annular body 15 abutting against the rear end of the expansion body 3, the front end of the annular body 15 is an arc surface, the outer side surface of a support body 5 is an arc-shaped plane, fish scale grains 8 are uniformly distributed on the outer side surface of the support body 5, the support body 5 is provided with an arc-shaped groove 7 into which the free end of the expansion part 6 can be inserted, the inner side surface of the free end of the expansion part 6 is an inclined surface 9, and the high end of the inclined surface 9 is connected with the outer side surface of the free end of the expansion part 6 through an arc surface 10 matched with the top end of the arc-shaped groove 7 And then, the peripheral surface of the screw rod body 23 is provided with a containing groove 16 which can contain the sliding seat 14 and is in one-to-one correspondence with the groove 13 on the conical surface of the expansion body 3, the groove 13 on the conical surface of the expansion body 3 is communicated with the containing groove 16, the cross section of the positioning part 11 is square, and the length of the diagonal line of the positioning part 11 is not more than the diameter of the screw rod body 23.
The working process of the invention is as follows:
in the working process of the improved expansion screw, the expansion bolt 2 is fixed and prevented from rotating by clamping a wrench on the positioning part 11, then the fixing nut 12 is rotated to push the expansion body 3 to move forwards, the support body 5 is opened by the conical surface of the conical part 22 and the expansion body 3 until the support body 5 is pressed and fixed on the hole wall of the mounting hole, under the condition that the diameters of the conical part 22 and the large end of the conical surface of the expansion body 3 are fixed, the lifting height of the support body 5 is greatly increased by the matching of the groove 13 and the sliding seat 14, the contact area between the support body and the hole wall of the mounting hole is increased by using the support body, compared with the prior art, the improved expansion screw is convenient to mount, the fixing reliability is improved, and the range of the adaptive mounting hole diameter is greatly improved.
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 (4)
1. An improvement type inflation screw which characterized in that: comprises an expansion sleeve (1), an expansion bolt (2), an expansion body (3), a fastening nut (4), a plurality of supporting bodies (5), a plurality of expansion parts (6), a positioning part (11), a fixing nut (12), a plurality of grooves (13) and a plurality of sliding seats (14), wherein the expansion bolt (2) consists of a cylindrical part (21), a conical part (22) integrally formed at the rear end of the cylindrical part (21) and a screw rod body (23) integrally formed at the rear end of the conical part (22), the free end of the screw rod body (23) is provided with the positioning part (11), the expansion sleeve (1), the expansion body (3), the fixing nut (12) in threaded connection and the fastening nut (4) in threaded connection are sequentially sleeved on the screw rod body (23) from front to back, the front end and the rear end of the expansion sleeve (1) are both provided with the uniformly distributed expansion parts (6), the free end of the expansion part (6) is sleeved with the supporting bodies (5), the inner side of the supporting bodies (5) is provided with the conical surface (14), the lower end of the sliding seat (14) is provided with an inclined surface, the sliding seat (22) and the sliding seat (13) is provided with the lower end of the groove (13) which is matched with the sliding seat (14), the supporting structure is characterized in that a groove (13) in the conical portion (22) extends forwards until penetrating through the circumferential surface of the cylindrical portion (21), the groove (13) in the conical surface of the expansion body (3) extends backwards until penetrating through the cylindrical surface of the expansion body (3), an annular body (15) abutting against the rear end of the expansion body (3) is arranged at the front end of the fixing nut (12), the front end of the annular body (15) is an arc surface, the outer side surface of the supporting body (5) is an arc-shaped plane, fish scale grains (8) are uniformly distributed on the outer side surface of the supporting body (5), and an arc-shaped groove (7) into which the free end of the expansion portion (6) can be inserted is formed in the supporting body (5).
2. An improved expansion screw as claimed in claim 1, wherein: the inner side face of the free end of the expansion part (6) is an inclined face (9), and the high end of the inclined face (9) is connected with the outer side face of the free end of the expansion part (6) through an arc face (10) matched with the top end of the arc-shaped groove (7).
3. An improved expansion screw as claimed in claim 1, wherein: the peripheral surface of the screw rod body (23) is provided with accommodating grooves (16) which can accommodate the sliding seat (14) and correspond to the grooves (13) on the conical surface of the expansion body (3) one by one, and the grooves (13) on the conical surface of the expansion body (3) are communicated with the accommodating grooves (16).
4. An improved expansion screw as claimed in any one of claims 1 to 3, wherein: the cross section of the positioning part (11) is square, and the length of the diagonal line of the positioning part (11) is not larger than the diameter of the screw rod body (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710547301.XA CN107355458B (en) | 2017-07-06 | 2017-07-06 | Improved expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710547301.XA CN107355458B (en) | 2017-07-06 | 2017-07-06 | Improved expansion screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107355458A CN107355458A (en) | 2017-11-17 |
| CN107355458B true CN107355458B (en) | 2022-11-25 |
Family
ID=60291707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710547301.XA Active CN107355458B (en) | 2017-07-06 | 2017-07-06 | Improved expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107355458B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119482B (en) * | 2017-12-15 | 2019-08-20 | 晋江市青阳明扬汽配制造有限公司 | A kind of secured tire bolt |
| US10962992B2 (en) | 2017-12-25 | 2021-03-30 | Industrial Technology Research Institute | Apparatus with two anchors |
| CN109958692B (en) * | 2017-12-25 | 2021-01-08 | 财团法人工业技术研究院 | Device with double fixed ends |
| CN108661997B (en) * | 2018-07-24 | 2023-08-15 | 浙江哈特惠科技股份有限公司 | Single-side bolt fastener capable of being repeatedly disassembled and assembled |
| CN111692176B (en) * | 2020-06-18 | 2024-11-01 | 法兰泰克重工股份有限公司 | Reusable locating pin structure |
| CN112610580B (en) * | 2020-12-22 | 2022-12-13 | 泉州双益机械有限公司 | Expansion bolt |
| CN216109499U (en) * | 2021-07-07 | 2022-03-22 | 广州荷力胜蜂窝材料股份有限公司 | Wall decorative board fastener |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4322589A1 (en) * | 1993-07-07 | 1995-01-12 | Mkt Metall Kunststoff Technik | Expansion dowel |
| DE10118374A1 (en) * | 2001-04-12 | 2002-10-17 | Fischer Artur Werke Gmbh | Process for producing an expansion anchor comprises brushing the surface of a cone at the front end of the anchor with a steel brush before applying a sliding coating to produce a grooved structure with parallel grooves |
| JP2007177886A (en) * | 2005-12-28 | 2007-07-12 | Koyo Kizai Kk | Expansion type fastener |
| CN201050527Y (en) * | 2007-06-29 | 2008-04-23 | 龙信建设集团有限公司 | Expansion screw |
| CN201198859Y (en) * | 2008-05-11 | 2009-02-25 | 隋贵和 | Multi-point clamping type expansion screw |
| CN201250831Y (en) * | 2008-07-27 | 2009-06-03 | 颜丙平 | Expansion screw |
| KR20120105129A (en) * | 2011-03-15 | 2012-09-25 | 김원일 | Extended anchor bolt |
| CN102859208A (en) * | 2010-05-05 | 2013-01-02 | 费希尔厂有限责任两合公司 | Expanding anchor |
| CN203730491U (en) * | 2014-01-02 | 2014-07-23 | 德清县天创五金制品有限公司 | Expansion bolt |
| CN104769292A (en) * | 2014-01-21 | 2015-07-08 | 杨东佐 | Expansion connection assembly |
| JPWO2015162975A1 (en) * | 2014-04-23 | 2017-04-13 | 株式会社豊和 | Anchor bolt |
| CN206972689U (en) * | 2017-07-06 | 2018-02-06 | 海盐县通顺标准件厂 | A kind of modified form setscrew |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2592941Y (en) * | 2002-11-15 | 2003-12-17 | 李应清 | Guide expansion bolt |
| US20110311330A1 (en) * | 2010-06-22 | 2011-12-22 | Advanced Green Energy Tech. Corp. | Expansion bolt and frame using the same |
-
2017
- 2017-07-06 CN CN201710547301.XA patent/CN107355458B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4322589A1 (en) * | 1993-07-07 | 1995-01-12 | Mkt Metall Kunststoff Technik | Expansion dowel |
| DE10118374A1 (en) * | 2001-04-12 | 2002-10-17 | Fischer Artur Werke Gmbh | Process for producing an expansion anchor comprises brushing the surface of a cone at the front end of the anchor with a steel brush before applying a sliding coating to produce a grooved structure with parallel grooves |
| JP2007177886A (en) * | 2005-12-28 | 2007-07-12 | Koyo Kizai Kk | Expansion type fastener |
| CN201050527Y (en) * | 2007-06-29 | 2008-04-23 | 龙信建设集团有限公司 | Expansion screw |
| CN201198859Y (en) * | 2008-05-11 | 2009-02-25 | 隋贵和 | Multi-point clamping type expansion screw |
| CN201250831Y (en) * | 2008-07-27 | 2009-06-03 | 颜丙平 | Expansion screw |
| CN102859208A (en) * | 2010-05-05 | 2013-01-02 | 费希尔厂有限责任两合公司 | Expanding anchor |
| KR20120105129A (en) * | 2011-03-15 | 2012-09-25 | 김원일 | Extended anchor bolt |
| CN203730491U (en) * | 2014-01-02 | 2014-07-23 | 德清县天创五金制品有限公司 | Expansion bolt |
| CN104769292A (en) * | 2014-01-21 | 2015-07-08 | 杨东佐 | Expansion connection assembly |
| JPWO2015162975A1 (en) * | 2014-04-23 | 2017-04-13 | 株式会社豊和 | Anchor bolt |
| CN206972689U (en) * | 2017-07-06 | 2018-02-06 | 海盐县通顺标准件厂 | A kind of modified form setscrew |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107355458A (en) | 2017-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107355458B (en) | Improved expansion screw | |
| CN102094889A (en) | Method for preventing fastening nut from being stolen, anti-theft nut and special sleeve tool | |
| CN211371819U (en) | Building engineering measuring equipment strutting arrangement | |
| CN207490472U (en) | Bird-scaring unit is insulated bar | |
| CN209800477U (en) | Novel expansion bolt | |
| CN210779816U (en) | Electrified repacking instrument of equalizer ring bolt with self-locking function | |
| CN213918027U (en) | Rear oil seal pulling-out tool | |
| CN212169448U (en) | Anchor clamps lower margin adjustment mechanism | |
| CN206320484U (en) | A kind of hydropneumatic seat used suitable for non-vertical state | |
| CN112454257A (en) | Rear oil seal pulling-out tool | |
| CN201405279Y (en) | Draw rod assembly overall length regulating device | |
| CN201925316U (en) | Anti-theft nut and dedicated sleeve tool thereof | |
| CN219243005U (en) | Supporting device | |
| CN219484968U (en) | Processing clamp for positioning breaking hammer cylinder body | |
| CN221809133U (en) | Compression locking device for spindle drilling | |
| CN215854684U (en) | Bolt for crane rail pressing plate | |
| CN211029696U (en) | Clamp for machining end face of piston rod | |
| CN221495903U (en) | Screw fastening frock of convenient regulation | |
| CN215789603U (en) | Bolt and nut screwing tool | |
| CN220540054U (en) | Easy-to-detach expansion bolt | |
| CN220891306U (en) | Pipeline suspension protection device | |
| CN210232437U (en) | Clamp for grinding bearing outer ring | |
| CN209818498U (en) | Flange nut for building support | |
| CN221961548U (en) | Cable support for engineering construction | |
| CN219755019U (en) | Expansion screw |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |