CN102889278A - Stressed expansion screw rod - Google Patents
Stressed expansion screw rod Download PDFInfo
- Publication number
- CN102889278A CN102889278A CN2012104002825A CN201210400282A CN102889278A CN 102889278 A CN102889278 A CN 102889278A CN 2012104002825 A CN2012104002825 A CN 2012104002825A CN 201210400282 A CN201210400282 A CN 201210400282A CN 102889278 A CN102889278 A CN 102889278A
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- China
- Prior art keywords
- screw rod
- expansion
- stressed
- expansive
- pulling force
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Abstract
The invention discloses a stressed expansion screw rod. According to the technical scheme, the stressed expansion screw rod comprises an expanded outer cover, wherein an expansion groove is formed below the middle of the expanded outer cover, and an expanded hammer hole is machined in the lower part of the middle of the expanded outer cover; and the stressed expansion screw rod is characterized in that a stressed stop ring is connected to the upper end of a tension screw; a square core is machined on the top end of the tension screw; a thread is formed outside the tension screw; a mounting nut is movably connected above the tension screw and is used for fixing equipment or electrical appliances; an inner hole of a hammer-shaped expansive force nut is machined into an internal thread; and the hammer-shaped expansive force nut is connected to the lower end of the tension screw. The square core on the top end of the tension screw is used for screwing or loosening the hammer-shaped expansive force nut, so that an expanded hammer hole at the lower end of the expanded outer cover is enlarged or narrowed through the expansion groove.
Description
Technical field
The present invention relates to expansive screw, particularly relate to a kind of stressed expansive screw.
Background technique
The effect of expansive screw is: be used for installing or the under-chassis of the household electric appliance such as the fixing equipment that does not pre-determine the position and air-conditioning, to realize a kind of installation method of simple and fast.
Present known expansive screw is divided into two large classes, a kind of is iron-clad screw rod cable-stayed type expansion rod, another kind is that nylon outer shell is directly attacked the formula expansion rod, above-mentioned iron-clad screw rod cable-stayed type expansion rod and nylon outer shell are directly attacked the formula expansion rod, the phenomenon of screw rod and expansion rod rotation can appear in fastening nut when mounted, screw rod and expansion rod rotate the under-chassis of equipment and household electric appliance can't be fixed, this mainly contains two reasons and causes, 1: be that the too large and expansion shell of mounting hole does not closely cooperate, 2: be that screw rod bottom circle acutance is large not, the method that the installer will solve these two problems is packing between expansion shell and mounting hole, the expansion shell can not rotated, reach the purpose of energy fastening nut, but this is affected equipment and electric mounting intensity, particularly to the installation strength equipment that has certain requirements, iron-clad screw rod cable-stayed type expansion rod and nylon outer shell are directly attacked the formula expansion rod, can't satisfy the installation strength requirement especially.
Summary of the invention
Technical problem to be solved by this invention is, overcomes present iron-clad screw rod cable-stayed type expansion rod, nylon outer shell is directly attacked the technical problem that the formula expansion rod exists, and a kind of stressed expansive screw is provided.
In order to realize purpose of the present invention, the technical solution used in the present invention: comprise the expansion overcoat, the expansion overcoat has expansion slot below the centre.
Further optimize, be processed into the hammer hole of expanding in below in the middle of the expansion overcoat, it is characterized in that being subjected to the mechanical resistance circle to be connected to pulling force screw rod upper end, the pulling force screw tip is processed into Fang Xin, pulling force screw rod outside is screw thread, mounting nuts is movably connected in above the pulling force screw rod, and mounting nuts is to be used for fixing equipment or electrical equipment.
Improve as further optimization of the present invention, capitate expansive force nut inner hole is processed into internal thread, and capitate expansive force nut is connected to pulling force screw rod lower end.
The further Fang Xin of pulling force screw tip is to tighten or unscrew capitate expansive force nut to make the expansion hammer hole of expansion overcoat lower end become large by expansion slot or diminish.
Working principle of the present invention is such: when equipment or household electric appliance need to be installed in certain position, electricity consumption is drilled in and gets the mounting hole that can put into the stressed expansive screw overcoat of the present invention on the hard basis, then put into the stressed expansive screw of a cover, turn the Fang Xin of pulling force screw rod upper end, because being subjected to the reaction force of mechanical resistance circle and expansion overcoat, screw thread in the capitate expansive force nut and the engagement of pulling force external thread of screw, turn pulling force screw rod upper end Fang Xin by certain orientation, make capitate expansive force nut along with the pulling force bolt rotary constantly moves up, along with hammer nut moves up, expansion overcoat lower end expansion hammer hole outer wall and expansion slot change ambassador and mounting hole are closely cooperated, reach the purpose of warding off locking in expansion overcoat and the mounting hole, and make and draw screw rod to have necessarily by dress intensity, the mounting nuts of back-outing, peace side needs electrical equipment or the equipment of installation on the pulling force screw rod, loads onto mounting nuts and tighten mounting nuts to reach purpose of the present invention.
Description of drawings
Fig. 1 is embodiment of the invention structure sectional view:
Fig. 2 is that the embodiment of the invention is installed the distending view;
Fig. 3 is STRUCTURE DECOMPOSITION figure of the present invention;
Comprise referring to Fig. 1, Fig. 2 and a kind of stressed expansive screw of Fig. 3 the present invention: expansion overcoat 6, the expansion overcoat has expansion slot 5 below 6 centres, be processed into the hammer hole 4 of expanding in below in the middle of the expansion overcoat 6, it is characterized in that being subjected to mechanical resistance circle 7 to be connected to pulling force screw rod 3 upper ends, the side of being processed into, pulling force screw rod 3 top core 10, pulling force screw rod 3 outsides are outside threads 8, and mounting nuts 9 is movably connected in above the pulling force screw rod 3, and mounting nuts 9 is to be used for fixing equipment or electrical equipment.
Improve as further optimization of the present invention, capitate expansive force nut 1 endoporus is processed into internal thread 2, capitate expansive force nut 1 and the engagement of pulling force screw rod 3 lower ends.
The further square core 10 on pulling force screw rod 3 tops is to tighten or unscrew capitate expansive force nut 1 to make the expansion hammer hole 4 of expansion overcoat 6 lower ends become large by expansion slot 5 or diminish.
Claims (3)
1. stressed expansive screw: comprise expansion overcoat (6), expansion overcoat (6) has expansion slot (5) below the centre, be processed into the hammer hole (4) of expanding in below in the middle of the expansion overcoat (6), it is characterized in that being subjected to mechanical resistance circle (7) to be connected to pulling force screw rod (3) upper end, Fang Xin (10) is processed on pulling force screw rod (3) top, pulling force screw rod (3) outside is outside thread (8), mounting nuts (9) is movably connected in above the pulling force screw rod (3), and mounting nuts (9) is to be used for fixing equipment or electrical equipment.
2. described a kind of stressed expansive screw according to claim 1 is characterized in that, capitate expansive force nut (1) endoporus is processed into internal thread (2), capitate expansive force nut (1) and the engagement of pulling force screw rod (3) lower end.
3. described a kind of stressed expansive screw according to claim 2, be further characterized in that, the Fang Xin (10) on screw rod (3) top is to tighten or unscrew capitate expansive force nut (1) the expansion hammer hole (4) of expansion overcoat (6) lower end is become greatly by expansion slot (5) or to diminish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104002825A CN102889278A (en) | 2012-10-21 | 2012-10-21 | Stressed expansion screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104002825A CN102889278A (en) | 2012-10-21 | 2012-10-21 | Stressed expansion screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102889278A true CN102889278A (en) | 2013-01-23 |
Family
ID=47532906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104002825A Pending CN102889278A (en) | 2012-10-21 | 2012-10-21 | Stressed expansion screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102889278A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016116848A1 (en) * | 2015-01-20 | 2016-07-28 | Fci Holdings Delaware, Inc. | Point anchored friction bolt |
| CN106369031A (en) * | 2016-11-14 | 2017-02-01 | 杭州知加网络科技有限公司 | Improved expansion bolt |
| CN109751306A (en) * | 2018-11-13 | 2019-05-14 | 林仕强 | Detachable dual-purpose expansion member |
| CN111878496A (en) * | 2020-06-17 | 2020-11-03 | 杭州恒领科技有限公司 | Vehicle-mounted control host based on 5G Internet of vehicles |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10338972A (en) * | 1997-05-08 | 1998-12-22 | Illinois Tool Works Inc <Itw> | Expansible anchor and installation method thereof |
| CN2409371Y (en) * | 2000-03-09 | 2000-12-06 | 孙宗仰 | Detachable reusable expansion screw |
| CN102192223A (en) * | 2010-03-16 | 2011-09-21 | 郭振春 | Easily removable expansion bolt |
| CN202048064U (en) * | 2011-01-14 | 2011-11-23 | 邵忠炎 | Anchor bolt |
| CN202108834U (en) * | 2011-06-22 | 2012-01-11 | 王春华 | Novel combined integral bolt |
-
2012
- 2012-10-21 CN CN2012104002825A patent/CN102889278A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10338972A (en) * | 1997-05-08 | 1998-12-22 | Illinois Tool Works Inc <Itw> | Expansible anchor and installation method thereof |
| CN2409371Y (en) * | 2000-03-09 | 2000-12-06 | 孙宗仰 | Detachable reusable expansion screw |
| CN102192223A (en) * | 2010-03-16 | 2011-09-21 | 郭振春 | Easily removable expansion bolt |
| CN202048064U (en) * | 2011-01-14 | 2011-11-23 | 邵忠炎 | Anchor bolt |
| CN202108834U (en) * | 2011-06-22 | 2012-01-11 | 王春华 | Novel combined integral bolt |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016116848A1 (en) * | 2015-01-20 | 2016-07-28 | Fci Holdings Delaware, Inc. | Point anchored friction bolt |
| CN106369031A (en) * | 2016-11-14 | 2017-02-01 | 杭州知加网络科技有限公司 | Improved expansion bolt |
| CN109751306A (en) * | 2018-11-13 | 2019-05-14 | 林仕强 | Detachable dual-purpose expansion member |
| CN111878496A (en) * | 2020-06-17 | 2020-11-03 | 杭州恒领科技有限公司 | Vehicle-mounted control host based on 5G Internet of vehicles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130123 |