CN102182737B - Invisible pressing expansion screw - Google Patents
Invisible pressing expansion screw Download PDFInfo
- Publication number
- CN102182737B CN102182737B CN 201110155650 CN201110155650A CN102182737B CN 102182737 B CN102182737 B CN 102182737B CN 201110155650 CN201110155650 CN 201110155650 CN 201110155650 A CN201110155650 A CN 201110155650A CN 102182737 B CN102182737 B CN 102182737B
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- China
- Prior art keywords
- main body
- body bolt
- invisible
- expansion
- described main
- 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.)
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- 238000010276 construction Methods 0.000 abstract description 2
- 239000002360 explosive Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension 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
- F16B13/04—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
Abstract
The invention discloses an invisible pressing expansion screw which comprises a main body bolt (1), an upper sleeve (4), a pressing spring (5), an expansion pipe (2) and a round expansion head (3) which are sequentially sleeved on the main body bolt (1), wherein the round expansion head is spirally matched with external screw threads at the lower end part of the main body bolt; and the main body bolt (1), the upper sleeve (4), the pressing spring (5) and the expansion pipe (2) are removably connected together. The pressing spring is concealed in a mounting hole by the invisible pressing expansion screw provided by the invention, and working pieces can not be clamped; the screw is particularly suitable for the mounting construction for fastening thicker projects; and after the invisible pressing expansion screw provided by the invention is removed, the main body bolt can be recycled, the smoothness of the mounting field can be kept, and the screw is environmentally-friendly.
Description
Technical field
The present invention relates to a kind of fastening screw, relate in particular to a kind of quick-fried fastening screw of drawing of invisible pressed spring that has, pull explosive screw of the present invention is applicable to install the fastening engineerings such as road and bridge, guardrail, road post, communication, fire-fighting, venue seat, distribution facility, steel frame construction, is specially adapted to the installing engineering of fastening thicker workpiece.
Background technique
The pull explosive screw of prior art comprises screw rod, nut, expansion tube, spring meson, plain cushion; its shape and structure as shown in Figure 1; this kind pull explosive screw is installed loaded down with trivial details; substrate hold-down function is strong not, and the main body screw can not repeat secondary and use, and no matter is after installing or after dismounting; its main body screw all can expose long screw head; if be used for the means of transportation such as deceleration offset plate on fixing road surface, often can puncture automobile tire, make on the road potential safety hazards such as the pedestrian falls.The patent No. is that 201020575763.6 Chinese utility model patent discloses a kind of axle core formula pull explosive screw of pressing, and this pull explosive screw is socketed a Compress Spring between plain cushion and expansion tube, and its shape and structure as shown in Figure 2.Although the pull explosive screw of Fig. 2 has possessed substrate hold-down function, but main body screw also secondary uses, if but be used for fixedly suspension type workpiece, be easy to occur the situation that holddown spring blocks workpiece, if be used for the larger workpiece of fixed thickness, still can expose expansion sleeve after dismounting, can not form smooth environment, thereby occur as Fig. 1 pull explosive screw often appearance puncture automobile tire, make on the road potential safety hazards such as the pedestrian falls.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of can hiding at the use state and presses spring, and the main body bolt can recycle, and keeps the pull explosive screw of smooth environment after dismounting.
The present invention solves the problems of the technologies described above the technological scheme that adopts:
A kind of invisible pressed anchor bolt, comprise: main body bolt, the frustoconic shape expansion-head that is socketed in the expansion tube on the main body bolt and coordinates with described main body bolt underpart outside thread spiral, also comprise upper sleeve pipe and holddown spring with described main body bolt pivot bush unit, described upper sleeve pipe is positioned at the top of described expansion tube, described holddown spring is placed between sleeve pipe and expansion tube, described main body bolt, upper sleeve pipe, holddown spring, expansion tube and the frustoconic shape expansion-head is removable links together.Therefore any position due to holddown spring between upper sleeve pipe and expansion tube owing to being provided with upper sleeve pipe, can guarantee that pull explosive screw installing and using state, and its holddown spring does not expose in order to avoid causes the situation of blocking workpiece.Due to described main body bolt, upper sleeve pipe, holddown spring, expansion tube with the frustoconic shape expansion-head is removable links together, only holddown spring, expansion tube and frustoconic shape expansion-head are retained in mounting hole after pull explosive screw dismounting therefore of the present invention, remaining main body bolt, upper sleeve pipe all can take out from mounting hole, therefore can keep smooth environment after dismounting, and the main body bolt can repeat the secondary use.
The screw rod of described main body bolt is stepped that the top diameter is large, lower diameter is less, and the bottom body of rod has the outside thread that can coordinate with described frustoconic shape expansion-head internal thread spiral.Stair-stepping screw rod can guarantee that the upper end portion of frustoconic shape expansion-head can enter in expansion tube smoothly when beginning to install.
There is two schemes to form stepped screw rod, the one, the described main body bolt structure that is formed in one.Another formation scheme is: at the uniform screw rod of diameter top socket one inner sleeve; Described plain cushion, upper sleeve pipe, holddown spring and demi-inflation pipe overlap again to be received on described inner sleeve.
Be provided with flat gasket between described main body bolt nut and upper sleeve pipe.Described main body bolt and flat gasket is formed in one or flat gasket is that individual components is socketed on described main body bolt.
The profile of the nut of described main body bolt is hexagon, square.Circular or spherical, its top has interior hex-shaped recess or cross recess, and size length size all can.
The diameter of described expansion tube is greater than the outer warp of described frustoconic shape expansion-head upper end, but less than the outer warp of described frustoconic shape expansion-head lower end, there are many radial slots the middle and lower part of described expansion tube tube wall.
The outer wall of described frustoconic shape expansion-head is provided with antiskid groove.
Compare with prior art, pull explosive screw of the present invention has following useful technique effect: holddown spring is hidden in mounting hole, thereby in the situation that possess powerful substrate hold-down function, guarantees can not block workpiece.Owing to adopting main body bolt, upper sleeve pipe, holddown spring, expansion tube to be connected the structure of connection with the frustoconic shape expansion-head, therefore be specially adapted to the installing engineering of fastening thicker workpiece.After dismounting, the main body bolt can recycle and can keep the smooth of fabricating yard, environmental protection.
Description of drawings
Fig. 1 is the structural representation of pull explosive screw of the prior art;
Fig. 2 is the structural representation of the existing pull explosive screw of another kind of appearance recently;
Fig. 3 is invisible pressed anchor bolt embodiment's one of the present invention overall structure schematic diagram;
Fig. 4 is invisible pressed anchor bolt embodiment's one of the present invention plan view;
Fig. 5 is the decomposition texture schematic diagram of invisible pressed anchor bolt in the embodiment of the present invention one;
Fig. 6 is invisible pressed anchor bolt embodiment's two of the present invention overall structure schematic diagram;
Fig. 7 is invisible pressed anchor bolt embodiment's two of the present invention plan view;
Fig. 8 is the decomposition texture schematic diagram of invisible pressed anchor bolt in the embodiment of the present invention two.
Embodiment
In order to make purpose of the present invention, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is described in further details.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Please refer to Fig. 3, Fig. 5, Fig. 6 and Fig. 8, invisible pressed anchor bolt of the present invention, comprise: main body bolt 1, be socketed in successively upper sleeve pipe 4, holddown spring 5 and expansion tube 2 on main body bolt 1 and the frustoconic shape expansion-head 3 that coordinates with described main body bolt 1 underpart outside thread spiral from top to bottom.As shown in Figure 3, described holddown spring 5 between upper sleeve pipe 4 and expansion tube 2, any position that described holddown spring 5 can be between upper sleeve pipe and expansion tube.The holddown spring 5 that therefore can guarantee the use state is hidden in mounting hole and can block workpiece.
As shown in Figure 5 and Figure 8, described main body bolt 1, upper sleeve pipe 4, holddown spring 5, expansion tube 2 and frustoconic shape expansion-head 3 are independent component, described main body bolt 1 be formed in one with plain cushion 7 or plain cushion 7 on individual components is socketed in described main body bolt 1, their removable invisible pressed anchor bolts that connects into.This removable structure makes apparatus of the present invention be specially adapted to the installing engineering of fastening thicker workpiece, and after dismounting, the main body bolt can recycle and keep smooth environment.
The diameter of described expansion tube 2 is greater than the outer warp of described frustoconic shape expansion-head 3 upper ends, but less than the outer warp of described frustoconic shape expansion-head 3 lower ends, there are many radial slots the middle and lower part of described expansion tube 2 tube walls.The outer wall of described frustoconic shape expansion-head 3 is provided with antiskid groove.
The screw rod of described main body bolt 1 is stepped that the top diameter is large, lower diameter is less, and the bottom body of rod has the outside thread that can coordinate with described frustoconic shape expansion-head 3 internal thread spirals.Have following two kinds of mode of executions to form stepped screw rod:
Embodiment one: described main body bolt 1 structure that is formed in one, described upper sleeve pipe 4, holddown spring 5, expansion tube 2 overlap successively receive main body bolt 1 diameter larger screw rod top, the outside thread spiral of the screw rod that the internal thread of frustoconic shape expansion-head 3 and main body bolt 1 lower diameter are less coordinates, as shown in Figure 5.Embodiment one structure is fit to the less situation of screw diameter of main body bolt 1, and the equipment that processing this moment has the main body bolt 1 of stepped screw rod need not ad hoc requirement.
Embodiment two: described main body bolt 1 upper diameter is large, stepped screw rod that lower diameter is less is to form like this, and at the uniform screw rod of diameter top socket one inner sleeve 6, this inner sleeve 6 equals to increase the diameter of main body bolt 1 upper screw; Described upper sleeve pipe 4, holddown spring 5 and demi-inflation pipe 2 overlap again to be received on described inner sleeve 6, and the internal thread of described frustoconic shape expansion-head 3 coordinates with main body bolt 1 lower external thread spiral, as shown in Figure 8.Embodiment two structure is fit to the larger situation of screw diameter of main body bolt 1, when if the screw diameter of main body bolt 1 is larger, directly process the main body bolt 1 with stepped screw rod and need relatively large equipment, for saving equipment investment, while is energy saving also, and the present embodiment two use one inner sleeves 6 form stepped screw rod.
Be provided with flat gasket 7 between described main body bolt 1 nut and upper sleeve pipe 4, described main body bolt 1 can be one-body molded (seeing Fig. 3 and Fig. 5) with flat gasket 7, and described flat gasket 7 can be also that individual components is socketed in (Fig. 6 and Fig. 8) on described main body bolt 1.
The profile of the nut of described main body bolt 1 is hexagon or square.Or the profile of the nut of described main body bolt 1 is circular or spherical, and its top has interior hex-shaped recess or cross recess (seeing Fig. 4 and Fig. 7).
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.All any modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Claims (8)
1. invisible pressed anchor bolt comprises: main body bolt (1), the frustoconic shape expansion-head (3) that is socketed in the expansion tube (2) on main body bolt (1) and coordinates with described main body bolt (1) underpart outside thread spiral characterized by further comprising:
Upper sleeve pipe (4) and holddown spring (5) with described main body bolt (1) pivot bush unit, described upper sleeve pipe (4) is positioned at the top of described holddown spring (5), described holddown spring (5) is placed between sleeve pipe (4) and expansion tube (2), described main body bolt (1), upper sleeve pipe (4), holddown spring (5), expansion tube (2) and removable the linking together of frustoconic shape expansion-head (3);
The screw rod of described main body bolt (1) is stepped that the top diameter is large, lower diameter is less;
Described main body bolt (1) upper diameter is large, stepped screw rod that lower diameter is less is to form like this, at the uniform screw rod of diameter top socket one inner sleeve (6), described upper sleeve pipe (4), holddown spring (5) and demi-inflation pipe (2) overlap again to be received on described inner sleeve (6).
2. invisible pressed anchor bolt according to claim 1 is characterized in that: the stepped screw rod bottom body of rod of described main body bolt (1) has the outside thread that coordinates with described frustoconic shape expansion-head (3) internal thread spiral.
3. invisible pressed anchor bolt according to claim 2, is characterized in that: be provided with flat gasket (7) between described main body bolt (1) nut and upper sleeve pipe (4).
4. invisible pressed anchor bolt according to claim 3 is characterized in that: described main body bolt (1) be formed in one with flat gasket (7) or flat gasket (7) on individual components is socketed in described main body bolt (1).
5. invisible pressed anchor bolt according to claim 4, it is characterized in that: the profile of the nut of described main body bolt (1) is hexagon or square, and its top has interior hex-shaped recess or cross recess.
6. invisible pressed anchor bolt according to claim 4 is characterized in that: the profile of the nut of described main body bolt (1) is for circular or spherical, and its top has interior hex-shaped recess or cross recess.
7. according to claim 4 or 5 described invisible pressed anchor bolts, it is characterized in that: the diameter of described expansion tube (2) is greater than the external diameter of described frustoconic shape expansion-head (3) upper end, but less than the external diameter of described frustoconic shape expansion-head (3) lower end, there are many radial slots the middle and lower part of described expansion tube (2) tube wall.
8. invisible pressed anchor bolt according to claim 3, it is characterized in that: the outer wall of described frustoconic shape expansion-head (3) is provided with antiskid groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110155650 CN102182737B (en) | 2011-06-10 | 2011-06-10 | Invisible pressing expansion screw |
| PCT/CN2012/075139 WO2012167679A1 (en) | 2011-06-10 | 2012-05-07 | Invisible pressure expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110155650 CN102182737B (en) | 2011-06-10 | 2011-06-10 | Invisible pressing expansion screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102182737A CN102182737A (en) | 2011-09-14 |
| CN102182737B true CN102182737B (en) | 2013-06-19 |
Family
ID=44569007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110155650 Active CN102182737B (en) | 2011-06-10 | 2011-06-10 | Invisible pressing expansion screw |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102182737B (en) |
| WO (1) | WO2012167679A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182737B (en) * | 2011-06-10 | 2013-06-19 | 温少松 | Invisible pressing expansion screw |
| CN105351311B (en) * | 2015-12-16 | 2017-09-12 | 吴中区光福正宏园艺场 | A kind of expansion bolt |
| DE102016125201A1 (en) * | 2016-12-21 | 2018-06-21 | Ludwig Hettich Holding Gmbh & Co. Kg | System for joining or reinforcing components |
| EP3477125A1 (en) | 2017-10-25 | 2019-05-01 | HILTI Aktiengesellschaft | Expansion anchor with sleeve abutment walls |
| CN108386611A (en) * | 2018-04-04 | 2018-08-10 | 南京知行管业有限公司 | A kind of tube body fixing device of kitchen range connecting tube |
| EP3584453A1 (en) * | 2018-06-20 | 2019-12-25 | HILTI Aktiengesellschaft | Expansion anchor with a nonaxisymmetric recess |
| CN109632476A (en) * | 2018-11-22 | 2019-04-16 | 四川临界自动化设备有限公司 | A kind of connection structure of screw forces testing |
| CN109372216A (en) * | 2018-12-05 | 2019-02-22 | 北京凯盛建材工程有限公司 | One kind exempting from keel decoration of exterior wall board installation member and its installation method |
| CN109458388A (en) * | 2019-01-16 | 2019-03-12 | 贵州航太精密制造有限公司 | A kind of stealthy bolt |
| CN114576253B (en) * | 2022-02-23 | 2024-04-16 | 仲粉扣 | Traceless hidden fastener |
| CN115137536B (en) * | 2022-09-05 | 2022-12-09 | 艾柯医疗器械(北京)股份有限公司 | Bead string-shaped component, stent conveying system comprising same and stent system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5042888A (en) * | 1990-06-06 | 1991-08-27 | Yugen Kaisha Shinjoseisakusho | Anchor bolt having a spring |
| CN101765348A (en) * | 2008-12-25 | 2010-06-30 | 富准精密工业(深圳)有限公司 | Fastening device assembly |
| CN201818611U (en) * | 2010-10-25 | 2011-05-04 | 曾小奕 | Pressing core-pulling type wedge screw |
| CN202082227U (en) * | 2011-06-10 | 2011-12-21 | 温少松 | Invisible pressed anchor bolt |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1625337A1 (en) * | 1967-11-13 | 1970-06-25 | Artur Fischer | Expansion dowel consisting of an expanding part, fastening element and sleeve |
| DE2536136A1 (en) * | 1975-08-13 | 1977-03-03 | Hilti Ag | EXPANSION DOWEL |
| DE2730618A1 (en) * | 1977-07-07 | 1979-01-18 | Heinrich Liebig | Positively engaging wall bore mounting socket - has sleeve sectors round bolt swinging radially outwards to lock into undercut of hole |
| DE3110485A1 (en) * | 1981-03-18 | 1982-09-30 | Phillips Drill Co GmbH, 6971 Hütschenhausen | SPREADING ANCHOR |
| DE3121198A1 (en) * | 1981-05-27 | 1982-12-23 | Hilti AG, 9494 Schaan | SPREADING DOWEL |
| CN102182737B (en) * | 2011-06-10 | 2013-06-19 | 温少松 | Invisible pressing expansion screw |
-
2011
- 2011-06-10 CN CN 201110155650 patent/CN102182737B/en active Active
-
2012
- 2012-05-07 WO PCT/CN2012/075139 patent/WO2012167679A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5042888A (en) * | 1990-06-06 | 1991-08-27 | Yugen Kaisha Shinjoseisakusho | Anchor bolt having a spring |
| CN101765348A (en) * | 2008-12-25 | 2010-06-30 | 富准精密工业(深圳)有限公司 | Fastening device assembly |
| CN201818611U (en) * | 2010-10-25 | 2011-05-04 | 曾小奕 | Pressing core-pulling type wedge screw |
| CN202082227U (en) * | 2011-06-10 | 2011-12-21 | 温少松 | Invisible pressed anchor bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102182737A (en) | 2011-09-14 |
| WO2012167679A1 (en) | 2012-12-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210728 Address after: 221200 East Outer Ring Road, Liji Town, Suining County, Xuzhou City, Jiangsu Province (in the former siliqiao cement plant) Patentee after: Suining Xinfei Machinery Technology Co., Ltd Address before: 518115 No. 13, South Lane, shanzixia Road, Dakang community, Henggang sub district office, Longgang District, Shenzhen City, Guangdong Province Patentee before: Wen Shaosong |