CN101526099B - Expansion bolt - Google Patents
Expansion bolt Download PDFInfo
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- CN101526099B CN101526099B CN2009100297854A CN200910029785A CN101526099B CN 101526099 B CN101526099 B CN 101526099B CN 2009100297854 A CN2009100297854 A CN 2009100297854A CN 200910029785 A CN200910029785 A CN 200910029785A CN 101526099 B CN101526099 B CN 101526099B
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- taper
- expansion
- intumescent sheet
- intumescent
- meeting stile
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Abstract
The invention relates to a high-intensity expansion bolt, comprising a conical body and at least two expansion pieces. The high-intensity expansion bolt is characterized in that a longitudinal threaded hole is arranged in the conical body, each expansion piece is longitudinally provided with a thin end and a thick end, and the expansion pieces are connected through a connecting lath; when the high-intensity expansion bolt is used, the conical body is inserted into space enclosed by the two expansion pieces, and a small end of the conical body points to the thick end of each expansion piece; an elastic locating sleeve is arranged outside each expansion piece. Because the conical body is provided with the longitudinal threaded hole, a screw rod can be screwed into the threaded hole of the conical body, screws with different lengths can be selected according to different use occasions, and the length of the expansion bolt can be regulated. When the expansion bolt is used, a nut on the screw is only needed to be screwed, and a plurality of expansion pieces can be strutted, therefore, each expansion piece can be randomly thickened according to the needs, and the intensity of the expansion bolt can be improved.
Description
Technical field
The present invention relates to a kind of EXPANSION ANCHOR BOLTS, specifically a kind of EXPANSION ANCHOR BOLTS of inserting the chap of can expanding behind petrosal foramen or the porthole is applicable to that places such as mine, tunnel are risen to strengthen or fixation.
Background technique
At present, the EXPANSION ANCHOR BOLTS of selling on the market mainly is made of basic bar, expansion tube, pad and nut, and basic bar wherein is taper, and its small end is processed with screw thread.Be processed with three longitudinal openings on the one big section of expansion tube one end, make an end of expansion tube be divided into three.During assembling, earlier expansion tube is enclosed within on the basic bar, and makes the big end of its opening one end near basic bar.The small end of base bar stretches out outside the astomous end of expansion tube, pad is enclosed within on the small end, and with the nut location, makes basic bar, expansion tube, pad and nut form one.During use, punch on wall earlier, the diameter in hole and the diameter of EXPANSION ANCHOR BOLTS are about equally.Afterwards, EXPANSION ANCHOR BOLTS is inserted in the porthole near an end of the big end of basic bar, and beaten the small end of basic bar, pad and metope are pressed close to hammer.Then, screw nut with spanner.Along with tightening of nut, basic bar outwards moves, and expansion tube is because the effect of pad keeps original position motionless.So, along with the outer of basic bar moves, the big end (inner end) of basic bar can progress in expansion tube opening one end and with expansion tube and strut, and then this EXPANSION ANCHOR BOLTS is fixed in the porthole tightly.
Because this EXPANSION ANCHOR BOLTS is to move expansion tube strutted by basic bar outer to realize that it is fixing, this just requires the thickness of expansion tube to approach, and hardness is low.Therefore, the used expansion tube of this EXPANSION ANCHOR BOLTS all is the thin sleeve pipe of aluminium matter.If adopt the higher steel sleeve pipe of hardness, only depend on and screw nut and be difficult to it is strutted.Therefore, the length of this EXPANSION ANCHOR BOLTS is short, intensity pulling force lower, that bear is little, can only be used for house decoration or household electrical appliances and install, and can not be used as strengthening and fixing of mine or tunnel, and using scope is restricted.
In addition, be that big end (inner end) by basic bar progresses into to strut in expansion tube opening one end and with expansion tube and realizes because this EXPANSION ANCHOR BOLTS is fixed in the porthole, when needing to pull down after the use, its basic bar can't be pulled down.Though can be the overhanging end of basic bar is sawed-off by the disk electric saw, can't make wall return to punching former state before.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of high-intensity EXPANSION ANCHOR BOLTS is provided, the length of this EXPANSION ANCHOR BOLTS can be regulated, and intensity height, the pulling force that bears are big, both can be used as the installation of house decoration or household electric appliance, can be used as the reinforcement in mine or tunnel or fixing again.
According to technological scheme of the present invention: described EXPANSION ANCHOR BOLTS comprises taper and at least two intumescent sheets, it is characterized in that: be provided with vertical screw in the described taper, every intumescent sheet vertically is being provided with thin end and thick end, and described intumescent sheet is connected by meeting stile; During use, in the space that two intumescent sheets of described taper insertion surround, and the small end of described taper points to the thick end of described intumescent sheet; Described intumescent sheet is outside equipped with elastic locating sleeve.
The outer surface of described taper is evenly equipped with vertical convex tendon, and described vertical convex tendon is between adjacent described intumescent sheet.Described meeting stile is a U-shaped, and its closed end is positioned at the big end of described taper, and its opening end is fixed on the described intumescent sheet.The outer surface of described intumescent sheet is provided with the groove of awl dentation.
Position near the big end of taper on described taper outer wall is provided with slot longitudinally, and described meeting stile has a closed end and opening end, and described closed end is embedded in the described slot.
Thin end at described intumescent sheet is provided with gap, near a side of thick end sunk part is set at the outer wall of intumescent sheet, and described sunk part links to each other with described gap; Described meeting stile has a closed end and opening end, and described meeting stile is partially submerged in the described gap near closed end, and the opening end of described meeting stile embeds in the described sunk part.
Technique effect of the present invention is: owing on the taper of the present invention vertical screw is arranged, screw rod can be screwed in the screw of taper, can be according to the difference of use occasion, select the screw rod of different length, make the length-adjustable of EXPANSION ANCHOR BOLTS, both can be used for house decoration or household electrical appliances and installed, and can act on the reinforcement in mine or tunnel or fixing again, using scope is unrestricted.
The expander that the present invention is made up of meeting stile and intumescent sheet replaces the expansion tube of conventional expanded bolt, during use, take off the spring setting sleeve, several intumescent sheets just are free shape, as long as screw the nut on the screw rod, some intumescent sheets can be strutted, therefore, the thickness of intumescent sheet can be thickeied arbitrarily as required, and then can improve the intensity of EXPANSION ANCHOR BOLTS, and its pulling force that bears is improved greatly.
In addition, because EXPANSION ANCHOR BOLTS of the present invention has substituted basic bar in the conventional expanded bolt by taper and screw rod, when after EXPANSION ANCHOR BOLTS of the present invention is used, needing to pull down, as long as oppositely screw screw rod it is separated with taper, and with petrosal foramen or porthole stifled on, can make crag or wall return to former state before the punching.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the right elevation of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.
Shown in Fig. 1～3, described EXPANSION ANCHOR BOLTS comprises taper 2 and two intumescent sheets 1, is provided with vertical screw 8 in the described taper 2, for the ease of matching with taper 2, every intumescent sheet 1 vertically is being provided with thin end and thick end, and described intumescent sheet 1 is connected by meeting stile 3; Described intumescent sheet 1 is outside equipped with elastic locating sleeve 4.During use, screw on screw rod in this vertical screw 8, in the space that two intumescent sheets 1 of described taper 2 insertions surround, and the small end of described taper 2 points to the thick end of described intumescent sheet 1, and the small end of taper 2 is in the thin end of intumescent sheet 1.The effect of spring setting sleeve 4 is that the present invention is positioned at intumescent sheet 1 on the taper 2 by spring setting sleeve 4 under non-working conditions such as storage or transportation, simultaneously also make taper 2 be in the intumescent sheet 1 always, meeting stile 3, intumescent sheet 1 and taper 2 are integral.Intumescent sheet 1 also can adopt 3.
The outer surface of taper 2 is evenly equipped with vertical convex tendon 5, and vertically convex tendon 5 plays the guide-localization effect between adjacent intumescent sheet 1.Meeting stile 3 is a U-shaped, and its closed end is positioned at the big end of taper 2, and its opening end is fixed on the intumescent sheet 1.The outer surface of intumescent sheet 1 is provided with the groove 6 of awl dentation, so that make the outer surface of intumescent sheet 1 form roughened surface, increases the friction of itself and grotto or between the walls in use.Position near taper 2 big ends on described taper 2 outer walls is provided with slot 9 longitudinally, described meeting stile 3 has a closed end and opening end, described closed end is embedded in the described slot 9, so that utilize the closed end of 9 pairs of meeting stiles 3 of slot to position.
Thin end at described intumescent sheet 1 is provided with gap 10, near a side of thick end sunk part 7 is set at the outer wall of intumescent sheet 1, and described sunk part 7 links to each other with described gap 10; Described meeting stile 3 has a closed end and opening end, described meeting stile 3 being partially submerged in the described gap 10 near closed end, the opening end of described meeting stile 3 embeds in the described sunk part 7, described gap 10 helps meeting stile is positioned with sunk part 7, simultaneously can guarantee that described meeting stile 3 can not exceed the outer surface of two intumescent sheets 1 in use, so that install and use.
When the present invention uses, earlier on crag or wall, accomplish fluently deep hole, in the screw 8 of taper 2, screw on screw rod, and an end of the taper 2 of EXPANSION ANCHOR BOLTS inserted in the deep hole, when inserting, spring setting sleeve 4 can come off automatically, then, continue firmly inwardly to push away screw rod, exert pressure, EXPANSION ANCHOR BOLTS is shifted tightly onto the bottom of deep hole by taper 2.Screw on nut then on screw rod, along with screwing of nut, taper 2 can move outward along with outer the moving of screw rod, and then intumescent sheet 1 is strutted, and the present invention is stuck in the deep hole on crag or the wall tightly.When dismantling EXPANSION ANCHOR BOLTS of the present invention if desired, only need oppositely to twist screw rod, it separated with taper 2, and with petrosal foramen or porthole stifled on, can make crag or wall return to former state before the punching.
Claims (3)
1. EXPANSION ANCHOR BOLTS, comprise taper (2) and at least two intumescent sheets (1), it is characterized in that: be provided with vertical screw (8) in the described taper (2), every intumescent sheet (1) vertically is being provided with thin end and thick end, and described intumescent sheet (1) is connected by meeting stile (3); During use, in the space that described taper (2) two intumescent sheets of insertion (1) surround, and the small end of described taper (2) points to the thick end of described intumescent sheet (1); Described intumescent sheet (1) is outside equipped with elastic locating sleeve (4);
Described meeting stile (3) is a U-shaped, and its closed end is positioned at the big end of described taper (2), and its opening end is fixed on the described intumescent sheet (1);
Position near the big end of taper (2) on described taper (2) outer wall is provided with slot (9) longitudinally, and described meeting stile (3) has a closed end and opening end, and described closed end is embedded in the described slot (9);
Thin end at described intumescent sheet (1) is provided with gap (10), near a side of thick end sunk part (7) is set at the outer wall of intumescent sheet (1), and described sunk part (7) links to each other with described gap (10); Described meeting stile (3) has a closed end and opening end, and described meeting stile (3) is partially submerged in the described gap (10) near closed end, and the opening end of described meeting stile (3) embeds in the described sunk part (7).
2. according to the described EXPANSION ANCHOR BOLTS of claim 1, it is characterized in that: the outer surface of described taper (2) is evenly equipped with vertical convex tendon (5), and described vertical convex tendon (5) is positioned between the adjacent described intumescent sheet (1).
3. according to the described EXPANSION ANCHOR BOLTS of claim 1, it is characterized in that: the outer surface of described intumescent sheet (1) is provided with the groove (6) of awl dentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100297854A CN101526099B (en) | 2009-04-09 | 2009-04-09 | Expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100297854A CN101526099B (en) | 2009-04-09 | 2009-04-09 | Expansion bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101526099A CN101526099A (en) | 2009-09-09 |
| CN101526099B true CN101526099B (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100297854A Active CN101526099B (en) | 2009-04-09 | 2009-04-09 | Expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101526099B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5791238B2 (en) * | 2010-06-18 | 2015-10-07 | 共同カイテック株式会社 | Double floor equipment |
| CN112081614A (en) * | 2020-08-28 | 2020-12-15 | 温州大学 | Novel expandable shell rock anchor rod device |
-
2009
- 2009-04-09 CN CN2009100297854A patent/CN101526099B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101526099A (en) | 2009-09-09 |
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Effective date of registration: 20220719 Address after: 214000 No. 22 dongdongtang Dongyuan Road, Xishan District, Wuxi City, Jiangsu Province Patentee after: Wuxi dongjinhong Investment Management Co.,Ltd. Address before: 214194, No. 69 West Tin Road, Xishan District, Jiangsu, Wuxi, Beizhen Patentee before: WUXI XIZHOU MACHINERY Co.,Ltd. |
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