CN204267466U - A kind of EXPANSION ANCHOR BOLTS and bearing pin thereof - Google Patents
A kind of EXPANSION ANCHOR BOLTS and bearing pin thereof Download PDFInfo
- Publication number
- CN204267466U CN204267466U CN201420720383.5U CN201420720383U CN204267466U CN 204267466 U CN204267466 U CN 204267466U CN 201420720383 U CN201420720383 U CN 201420720383U CN 204267466 U CN204267466 U CN 204267466U
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- bearing pin
- bolt sleeve
- limited impression
- anchor bolts
- extending section
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Abstract
The utility model relates to a kind of EXPANSION ANCHOR BOLTS and bearing pin thereof, a kind of EXPANSION ANCHOR BOLTS comprises the bolt sleeve and bearing pin that axis extends all in left-right direction, bolt sleeve has the extending section of the left end being positioned at bolt sleeve, extending section has pushing tow auxiliary section, described bearing pin has the pushing part expanded outwardly for coordinating to promote described extending section with described pushing tow auxiliary section pushing tow, described bearing pin is provided with the limited impression on the right side being positioned at described pushing part, described bolt sleeve is provided with and promotes to stretch in described limited impression after described extending section is expanded to coordinate with limited impression block to limit described bearing pin towards the limited part moved right at described pushing part.A kind of EXPANSION ANCHOR BOLTS of the present utility model to be coordinated with the block of limited impression by limited part carries out limit block to bearing pin towards moving right, produce the generation of loosening situation between the bolt sleeve that the bearing pin just can stopping to occur in using process is deviate to cause in bolt sleeve and matrix, avoid potential safety hazard.
Description
Technical field
The utility model relates to a kind of EXPANSION ANCHOR BOLTS and bearing pin thereof.
Background technique
A kind of EXPANSION ANCHOR BOLTS is disclosed in Chinese patent literature CN2580182Y, comprise bolt sleeve and bearing pin that axis extends all in left-right direction, bolt sleeve has the extending section of the left end being positioned at bolt sleeve, extending section offers the axially extended opening slot of length along bolt sleeve, the right-hand member of opening slot is communicated with the endoporus of bolt sleeve, and the right-hand member spiral of bolt sleeve is provided with nut.Above-mentioned bearing pin has pushing part, and above-mentioned extending section has pushing tow auxiliary section, and above-mentioned pushing part coordinates with above-mentioned pushing tow auxiliary section pushing tow and expands outwardly to realize promoting above-mentioned extending section.
During installation, first bolt sleeve is put into the blind hole of matrix, then by the bearing pin endoporus that inserting bolt is overlapped from right to left, beat bearing pin, extending section is expanded by the left end of bearing pin after the endoporus of bolt sleeve enters opening slot, prevents bolt sleeve from slippage in the blind hole of matrix by the expansion between the outer circumferential face of bolt sleeve and the inwall of the blind hole of matrix.Finally load-bearing member is set on the right-hand member of bolt sleeve, tightening nut, completes installation.
Above-mentioned a kind of EXPANSION ANCHOR BOLTS in use, due to the taper that the extending section strutted by bearing pin is left large and right small, such extending section applies except extruding force except to bearing pin, also to bearing pin applying thrust to the right, and moving axially of bearing pin does not suffer restraints, when bolt sleeve is subject to pulling force to the right, extending section is easy to bearing pin to squeeze out extending section in contraction process, produce between bolt sleeve and matrix and loosen, cause potential safety hazard.
Summary of the invention
The purpose of this utility model is to provide a kind of EXPANSION ANCHOR BOLTS, deviates to cause to solve installation rear pin shaft of the prior art the technical problem loosened between bolt sleeve and matrix from extending section.Meanwhile, the utility model additionally provides a kind of bearing pin of this EXPANSION ANCHOR BOLTS.
For achieving the above object, a kind of EXPANSION ANCHOR BOLTS of the present utility model adopts following technological scheme: a kind of EXPANSION ANCHOR BOLTS, comprise bolt sleeve and bearing pin that axis extends all in left-right direction, bolt sleeve has the extending section of the left end being positioned at bolt sleeve, extending section has pushing tow auxiliary section, described bearing pin has the pushing part expanded outwardly for coordinating to promote described extending section with described pushing tow auxiliary section pushing tow, described bearing pin is provided with the limited impression on the right side being positioned at described pushing part, described bolt sleeve is provided with and promotes to stretch in described limited impression after described extending section is expanded to coordinate with limited impression block to limit described bearing pin towards the limited part moved right at described pushing part.
The left side wall of described limited impression is connected with described pushing part, and the inwall of described extending section is convexly equipped with spacing preiection, and the left side wall of spacing preiection forms described limited part, and the right side wall of spacing preiection forms described pushing tow auxiliary section.
The left side wall of described limited impression comprises from left to right gradually near the inclined-plane of the axis of described bearing pin, and the left side wall of limited impression coincide with described limited part and coordinates.
The bearing pin of a kind of EXPANSION ANCHOR BOLTS of the present utility model adopts following technological scheme: a kind of bearing pin of EXPANSION ANCHOR BOLTS, comprise the pin body that axis extends in left-right direction, pin body has the pushing part for expanding outwardly with the extending section that the pushing tow auxiliary section pushing tow of corresponding bolt sleeve coordinates to promote described bolt sleeve, described pin body is provided with for coordinating to limit pin body towards the limited impression moved right with the limited part limit block on described bolt sleeve, and limited impression is positioned at the right side of described pushing part.
The left side wall of described limited impression is connected with described pushing part.
The shape of the left side wall of described limited impression comprises from left to right gradually near the inclined-plane of the axis of described pin body.
A kind of EXPANSION ANCHOR BOLTS of the present utility model by arranging limited impression on bearing pin, bolt sleeve is arranged and stretches into limited part in above-mentioned limited impression, limited part coordinates with the block of limited impression and carries out limit block to bearing pin towards moving right, the bearing pin that this makes it possible to stop in use to occur is deviate from bolt sleeve, produce loosening situation between the bolt sleeve caused and matrix to occur, avoid potential safety hazard.
Further, the inwall of extending section is convexly equipped with spacing preiection, the left side wall of spacing preiection forms limited part, this set makes the structure of limited part simple, without the need to setting up extra component, in turn simplify the structure of a kind of EXPANSION ANCHOR BOLTS of the present utility model, be convenient to manufacturing, be conducive to cutting down finished cost.
Further, the left side wall of limited impression of the present utility model comprises from left to right gradually near the inclined-plane of the axis of bearing pin, the left side wall of limited impression coincide with limited part and coordinates, the pressure that such expansion produces just can be delivered on the left side wall of limited impression by extending section, owing to coordinating for coincideing between limited impression with extending section, increase the area of contact of bearing pin and extending section, reduce expansionary force to the wearing and tearing of bearing pin, extend the working life of bearing pin.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of EXPANSION ANCHOR BOLTS of the present utility model;
Fig. 2 is the left view (removing band tooth flange nut) of Fig. 1;
Fig. 3 is the structural representation of bolt sleeve in Fig. 1;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the structural representation of bearing pin in Fig. 1;
Structural representation when Fig. 6 is EXPANSION ANCHOR BOLTS of the present utility model use.
Embodiment
A kind of EXPANSION ANCHOR BOLTS as Figure 1-5, comprise bolt sleeve 1 and bearing pin 2, the axis of the two extends all in left-right direction, above-mentioned bolt sleeve has the extending section of the left end being positioned at bolt sleeve, extending section offers the axially extended opening slot of length along bolt sleeve, the right-hand member of opening slot is communicated with the endoporus of bolt sleeve, and the shape of above-mentioned opening slot is cross.
Above-mentioned bearing pin 2 has pushing part, above-mentioned extending section has pushing tow auxiliary section, insert in the process of the endoporus of above-mentioned bolt sleeve from right to left at above-mentioned bearing pin, above-mentioned pushing part coordinates with above-mentioned pushing tow auxiliary section pushing tow and expands outwardly to realize promoting above-mentioned extending section.In the present embodiment, the left end of above-mentioned bearing pin forms above-mentioned pushing part.
Above-mentioned bearing pin is provided with the limited impression on the right side being positioned at above-mentioned pushing part, and bolt sleeve 1 is provided with the limited part stretching in limited impression after above-mentioned pushing part promotes extending section expansion and coordinate with limited impression block and move right to limit bearing pin court.
The left side wall of above-mentioned limited impression is connected with above-mentioned pushing part, and the inwall of above-mentioned extending section is convexly equipped with spacing preiection, and the left side wall of spacing preiection forms above-mentioned limited part, and the right side wall of spacing preiection forms above-mentioned pushing tow auxiliary section.In the present embodiment, above-mentioned spacing preiection is arranged on the left end of extending section, this set increases the arm of force that extending section expands outwardly to greatest extent, user just can complete the expansion action of extending section by less power, convenient operation, be conducive to saving man-hour, reduce labor intensity, increase work efficiency.Certainly, in other embodiments, above-mentioned spacing preiection can also be arranged on the right-hand member of extending section.In other embodiments, above-mentioned limited part can also be inserted into the stop screw on above-mentioned bolt sleeve, stop screw extends along the radial direction of above-mentioned bearing pin, above-mentioned limited impression can also be arranged on the blind hole on above-mentioned bearing pin, and above-mentioned stop screw is inserted in blind hole and coordinates to carry out limit block to moving axially of above-mentioned bearing pin with blind hole block.
The left side wall of above-mentioned limited impression comprises from left to right gradually near the inclined-plane of the axis of above-mentioned bearing pin, and the left side wall 5 of limited impression coincide with limited part and coordinates.In the present embodiment, above-mentioned limited impression is the annular groove on the outer circumferential face of the left end being arranged on above-mentioned bearing pin, and the shape of the left side wall of limited impression is taper left large and right small, and the shape of the right side wall of limited impression is that a left side is little large taper.Certainly, in other embodiments, above-mentioned limited impression can also be the v-depression running through bearing pin along the longitudinal direction.In other embodiments, the diapire that above-mentioned limited impression can also comprise left and right sidewall and be arranged between left and right sidewall.In other embodiments, above-mentioned limited part can also contact with the left side wall of above-mentioned limited impression and coordinate.
For the ease of being moved to the left of bearing pin 2, reduce pushing tow auxiliary section to the resistance of pushing part, the shape of pushing tow auxiliary section is taper left small and right large, and pushing part is provided with the taper chamfering matched with pushing tow auxiliary section.The right side wall 6 of above-mentioned limited impression coincide with above-mentioned pushing tow auxiliary section and coordinates, and certainly, in other embodiments, above-mentioned pushing tow auxiliary section can also be perpendicular to the plane of bolt sleeve.
In order to increase bolt sleeve 1 and matrix 7 blind hole inwall between frictional force, improve the anti-pulling ability of bolt sleeve further, the outer circumferential face of above-mentioned extending section is provided with multiple outer groove.
A kind of EXPANSION ANCHOR BOLTS of the present utility model also comprises the band tooth flange nut that spiral is arranged on the right-hand member of bolt sleeve 1.
The utility model additionally provides a kind of bearing pin of EXPANSION ANCHOR BOLTS, and the structure of the bearing pin of this EXPANSION ANCHOR BOLTS is consistent with the structure of above-mentioned bearing pin, does not repeat them here.
As shown in Figure 6, the present embodiment in use, bolt sleeve 1 is put into the blind hole of matrix, in the endoporus that bearing pin 2 inserting bolt is overlapped, the right-hand member of bearing pin is rapped with hammer, bearing pin is knocked in bolt sleeve 1 until the right-hand member end face of bearing pin is concordant with the right-hand member of bolt sleeve, in the process, the pushing part of bearing pin coordinates with pushing tow auxiliary section pushing tow and promotes extending section and expand outwardly, simultaneously, because above-mentioned limited part coordinates with the left side wall block of limited impression, the pressure that expansion produces is delivered on the left side wall of limited impression by limited part, this creates the terminal and prevent bearing pin towards the active force moved right, meanwhile, bearing pin is to the pressure expanded outwardly of bolt sleeve and the outer groove that is arranged on extending section, synergy increases the friction force between the inwall of the blind hole of bolt sleeve and matrix, from but bolt sleeve and matrix link together firmly.Finally, load-bearing member 4 is installed on bolt sleeve, and it is fastening to use band tooth flange surface nut 3 to carry out, and completes the installation and use of this EXPANSION ANCHOR BOLTS.
Claims (6)
1. an EXPANSION ANCHOR BOLTS, comprise bolt sleeve and bearing pin that axis extends all in left-right direction, bolt sleeve has the extending section of the left end being positioned at bolt sleeve, extending section has pushing tow auxiliary section, described bearing pin has the pushing part expanded outwardly for coordinating to promote described extending section with described pushing tow auxiliary section pushing tow, it is characterized in that: described bearing pin is provided with the limited impression on the right side being positioned at described pushing part, described bolt sleeve is provided with and promotes to stretch in described limited impression after described extending section is expanded to coordinate with limited impression block to limit described bearing pin towards the limited part moved right at described pushing part.
2. a kind of EXPANSION ANCHOR BOLTS according to claim 1, it is characterized in that: the left side wall of described limited impression is connected with described pushing part, the inwall of described extending section is convexly equipped with spacing preiection, the left side wall of spacing preiection forms described limited part, and the right side wall of spacing preiection forms described pushing tow auxiliary section.
3. a kind of EXPANSION ANCHOR BOLTS according to claim 2, is characterized in that: the left side wall of described limited impression comprises from left to right gradually near the inclined-plane of the axis of described bearing pin, and the left side wall of limited impression coincide with described limited part and coordinates.
4. the bearing pin of an EXPANSION ANCHOR BOLTS, comprise the pin body that axis extends in left-right direction, pin body has the pushing part for expanding outwardly with the extending section that the pushing tow auxiliary section pushing tow of corresponding bolt sleeve coordinates to promote described bolt sleeve, it is characterized in that: described pin body is provided with for coordinating to limit pin body towards the limited impression moved right with the limited part limit block on described bolt sleeve, and limited impression is positioned at the right side of described pushing part.
5. the bearing pin of a kind of EXPANSION ANCHOR BOLTS according to claim 4, is characterized in that: the left side wall of described limited impression is connected with described pushing part.
6. the bearing pin of a kind of EXPANSION ANCHOR BOLTS according to claim 5, is characterized in that: the shape of the left side wall of described limited impression comprises from left to right gradually near the inclined-plane of the axis of described pin body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420720383.5U CN204267466U (en) | 2014-11-26 | 2014-11-26 | A kind of EXPANSION ANCHOR BOLTS and bearing pin thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420720383.5U CN204267466U (en) | 2014-11-26 | 2014-11-26 | A kind of EXPANSION ANCHOR BOLTS and bearing pin thereof |
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| CN204267466U true CN204267466U (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420720383.5U Active CN204267466U (en) | 2014-11-26 | 2014-11-26 | A kind of EXPANSION ANCHOR BOLTS and bearing pin thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219866A (en) * | 2019-06-26 | 2019-09-10 | 汤业禧 | A kind of self-expanding semisolid installation rivet |
| CN114207304A (en) * | 2019-07-29 | 2022-03-18 | 卡迈锡控股两合公司 | Fastening element |
-
2014
- 2014-11-26 CN CN201420720383.5U patent/CN204267466U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219866A (en) * | 2019-06-26 | 2019-09-10 | 汤业禧 | A kind of self-expanding semisolid installation rivet |
| CN110219866B (en) * | 2019-06-26 | 2020-12-08 | 靖江市凯狄五金机械制造有限公司 | Self-expanding semi-solid mounting rivet |
| CN114207304A (en) * | 2019-07-29 | 2022-03-18 | 卡迈锡控股两合公司 | Fastening element |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |