CN104989063A - Back bolt and connection structure - Google Patents
Back bolt and connection structure Download PDFInfo
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- CN104989063A CN104989063A CN201510443652.7A CN201510443652A CN104989063A CN 104989063 A CN104989063 A CN 104989063A CN 201510443652 A CN201510443652 A CN 201510443652A CN 104989063 A CN104989063 A CN 104989063A
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- expansion
- anchor pole
- cylindrical body
- body bolt
- bolt
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Abstract
The invention provides a back bolt and a connection structure. The back bolt comprises an anchor pole and an expansion member. The expansion member has a cylinder main body and a plurality of expansion positions at one end of the cylinder main body, the external diameter of each expansion position is the same as that of the cylinder main body, each expansion position has a protruding portion, and the protruding portion is used as a bearing portion cooperating with a cone position of an bottom-expanded hole in a plate after the expansion position expands. The plurality of expansion portions at one end of the cylinder main body form an expansion segment, and the inner side of the expansion segment form a thinning position used for easily expanding and bending. The back bolt can well match a bottom-expanded hole, the anti-rotation and limiting measure does not influence cooperation between the back bolt and the bottom-expanded hole, and the cooperation having the good matching effect can be kept, permanent whole connection can be achieved, and the stress of an expansion position can be reduced to the minimum or zero. A never loosen connection structure can be formed using the back bolt, the connection structure can resist strong earthquake, and start-stop impact of a subway, and welding reinforcement is needless.
Description
Technical field
The present invention relates to a kind of back of the body bolt, for all kinds of building dry-hung plate decoration, it is by plate back anchor connection, therefore claim " back of the body bolt ", be applicable to anti-vibration and require that higher building external envelope structure and anti-braking are impacted the dry hanging curtain walls such as subway station and used, be particularly useful for the use such as porcelain plate, devitrified glass, also also can be used for other building structure connection area.The invention still further relates to the syndeton utilizing this back of the body bolt.
Background technology
At present, the cone screw rod load back of the body bolt used in building external envelope structure curtain wall, primarily of " expansion of disjunctor cylinder circle, disc-shaped expansion member, the stressed expansion member in disc-shaped set-point " three kinds.
First kind adopts disjunctor cylinder expanding, although occupation rate of market seniority among brothers and sisters is the first, there is flexible layer struts the effect of expansion member producing balanced forces effect to four, but to its section anatomical study, find that its defect is embodied in four expansion member strutted and gives prominence to cambered surface circle and sheet material and expand the bottom outlet conical surface goodness of fit and only have 40-50%; And because expansion segment external diameter is less than disjunctor outside diameter of cylinder, four expansion member can be caused to give prominence to cambered surface circle when carrying positive and negative blast tension and suspension tension is larger, the side recess that its expansion segment external diameter is less than disjunctor outside diameter of cylinder bends to hole wall place, outstanding cambered surface circle is drawn and skids off the possibility that sheet material expands the bottom outlet conical surface; Very high technology is complicated to also have disjunctor cylinder expansion part manufacturing cost, and it needs the stainless steel seamless pipe of Bian higher than STAINLESS STEEL WIRE 1.6 times of expensive price, and the machining through complexity completes, and waste of material is also quite serious, and also having more greatly can improvements further.
Second kind adopts disc-shaped expansion member, employing corrosion resistant plate is stamped to form, its expansion after due to be sheet cannot with sheet material expand the bottom outlet conical surface coincide, add section mouth and fragility stone material, the direct load of porcelain plate of its expansion metal element, especially high crisp class porcelain plate, devitrified glass, glass etc. manifest deficiency more.
The third class adopts the stressed expansion member in disc-shaped set-point, the section mouth of its expansion metal element and fragility stone material, the direct load of porcelain plate this be against mechanics principle, especially high crisp class porcelain plate, devitrified glass, glass etc. manifest deficiency more, and main cause is that stress too concentrates in little bump that expanding plate is arranged.
Summary of the invention
The present invention's first object is the back of the body bolt providing a kind of improvement, improves force-bearing situation and the installation capability of back of the body bolt.For achieving the above object, the present invention is by the following technical solutions:
A kind of limit-type back of the body bolt, comprise anchor pole, the expansion member with cone head, expansion member has cylindrical body, is in multiple expansion positions of cylindrical body one end, the inner side at expansion position has the force part coordinated with described cone head, described expansion member is enclosed within outside described anchor pole, the cone head of described anchor pole block by described expansion position and described expansion member cannot be passed; It is characterized in that:
Described expansion position external diameter is consistent with cylindrical body external diameter, and described expansion position is also provided with protruding parts, and described protruding parts is as the force part of matching with the cone position that sheet material expands bottom outlet after the expansion of expansion position;
Being formed inside the expansion segment that multiple expansion positions of described cylindrical body one end surround can for easily expansion and bending thinning area.
When being provided with protruding parts in the positive and negative blast tension of carrying and suspension stretching resistance, expansion position thinning section, being close under the effect of sheet material expansion bottom outlet wall and under the effect of expansion position and cylindrical body, guarantees that the load matched in the cone position that protruding parts and sheet material expand bottom outlet reaches optimal load power.
On the basis adopting technique scheme, the present invention also can adopt following further technical scheme:
The other end of described cylindrical body is provided with position point, described position point has the weak part that can be destroyed by handheld tool, described weak part is used for being formed with anchor pole after being destroyed by handheld tool preventing the connection of anchor pole relative distension element rotation from coordinating, and makes anchor pole form the entirety that can not relatively rotate with expansion member.
Described position point have can overlap by fixture and the anti-rotation face being mated and preventing it from rotating, described fixture is the parts needing to be fixed on matrix, and described matrix is the object arranging described expansion bottom outlet.
Described weak part is that wall thickness is less than cylindrical body and outside has the thin-walled in anti-rotation face, or, be also provided with one or both of following structure:
1) groove that interior outside communicates, is had from thin-walled top towards cylindrical body direction;
2), weak part inwall is provided with projection.
Described expansion position curves inwardly when not expanding.
Have the taper seat carrying out stressed cooperation outside described protruding parts, expansion position is not when expanding, and the maximum outside diameter of described taper seat is not more than the external diameter of described sleeve body.
Back of the body latch is prevented to be scattered and nut of screwing in order to be reduced to, lay down the duplication of labour of nut when mounted again, be provided with near cone head place the gear hobbing section being greater than bolt diameter with on the anchor pole of cone head described, the endoporus hole wall interference fit of itself and expansion member, after being press-fited by parts, expansion position also can form spacing cooperation with gear hobbing section, make together with anchor pole is preloaded in expansion member, without the need to nut of screwing on, directly can install, and after interference fit, have anti-rotation function.
The described anchor pole with cone head is provided with gear hobbing section, leaves recessed section between gear hobbing section and cone head, can block aduncate inner diameter edge line when expansion position is not expanded, make to assemble better effects if.
Described anchor pole is provided with spacing section that is greater than bolt diameter near cone head place, recessed section is provided with between spacing section and cone head, when just in time not expanded at curved expansion position, aduncate size quantity closes at recessed section, guarantee now, protruding parts place appearance and size is consistent with cylindrical body, when installing expansion, aduncate multiple expansion position is expanded along cone head.Spacing section can be and expansion member endoporus hole wall interference fit, spacing section can be above-mentioned gear hobbing section, when pre-installing, coordinate with the medial end of thinning area section and the step between thinning area section with cylindrical body endoporus and form snap-fit engagement, after interference fit, prevent anchor pole rotating function.
Described cylindrical body is except tangential expander groove, with its round external diameter band protruding parts in the present invention, the thinning expansion member that makes inside expansion position has merogenesis internal via shape, form external mold in cisoid, expansion member can adopt disposable upsetting to cause shape to complete, greatly the manufacturing cost of conservation and processing technology.
The nut of described back of the body bolt adopts and presses solidly nut, the described nut that presses solidly is provided with and presses solidly deformation section, described in press solidly deformation section and can be destroyed by handheld tool, and embed the screw thread position on anchor pole, and/or the screw thread position on destruction anchor pole, and form the syndeton of never becoming loose; Or, described in press solidly the profile of deformation section also consistent with the profile of described position point.
Described position point adopts and carries out based on two positions faced one another of parallel cutting the end of cylindrical body.
Described handheld tool is the instrument with functions of wrench or functions of pliers.
Another technical problem to be solved of the present invention is to provide a kind of syndeton utilizing above-mentioned back of the body bolt.For this reason, the present invention is by the following technical solutions:
A kind of syndeton, comprise the object arranging described expansion bottom outlet, the back of the body bolt be connected with described object, it is characterized in that: described back of the body bolt adopts above-described back of the body bolt, described position point is exposed to described expansion bottom outlet aperture place; Fixture also has the anti-rotation face coordinated with position point, and fixture and expansion member anti-rotation are connected.
Further, described expansion bottom outlet mouth is counter bore structure, in counter bore structure, be placed with pad, and when making positive wine pressure, object back is for the overall load of described back of the body bolt, prevent from anchor pole from hitting to expand bottom bottom outlet, thus described object can be made thinning and impact without the need to calculating positive wine pressure.
Owing to adopting technical scheme of the present invention, back of the body bolt provided by the present invention is good with the goodness of fit expanding bottom outlet, and without the need to arranging the spacing preiection determining anti-rotation again on cone head, the spacing measure of anti-rotation neither affects back of the body bolt and expands the cooperation of bottom outlet, the mated condition that this goodness of fit is good can be remained again, realize all-in-one-piece permanent type to connect, can by the stress drop at expansion position to minimum even unstressed; Present invention achieves the syndeton of never becoming loose, energy anti-strong earthquakes, subway start/stop impact, without the need to using reinforcement of weld again.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of syndeton provided by the present invention.
Fig. 2 is the schematic diagram in Fig. 1 when also not putting fixture.
Fig. 3 is the schematic diagram to carrying on the back bolt employing cross-sectional fashion in Fig. 2.
Fig. 4 is the schematic diagram of expansion member when not expanding.
Fig. 5 is the schematic diagram pressing solidly nut.
Fig. 6 is the schematic diagram of the another kind of embodiment of anchor pole.
Fig. 7 is the sectional view of spacing section of anchor pole.
Fig. 8 is the installation procedure schematic diagram of syndeton provided by the present invention.
Detailed description of the invention
With reference to accompanying drawing 1-5.Unstressed limit-type back of the body bolt provided by the present invention, comprise anchor pole 1, the expansion member 2 with cone 10, expansion member has cylindrical body 21, is in multiple expansion positions 22 of cylindrical body one end.
Expansion position 22 can adopt circular arc sheet.The inner side at expansion position has and cone 10 force part coordinated 221, and force part 221 can adopt and cone 10 internal conical surface matched.Described expansion member 2 is enclosed within outside described anchor pole 1, the cone of anchor pole 10 block by described expansion position 22 and cannot described expansion member 2 be passed.
Described expansion position 22 external diameter is consistent with cylindrical body 21 external diameter, also be, after being expanded, expansion position 22 is fully expanded outwardly, be consistent with cylindrical body 21 external diameter, thus the external diameter at described multiple expansion position 22 and the external diameter of cylindrical body close, there will not be the situation of the obvious inside safety in expansion position, described expansion position 22 is provided with protruding parts 222, and described protruding parts 222 is as the force part of matching with the cone position 102 expanding bottom outlet 101 after expansion position 22 is expanded.
Being formed inside the expansion segment that multiple expansion positions 22 of described cylindrical body one end surround can for easily expansion and bending thinning area 224, and the internal diameter of described thinning area 224 is greater than cylindrical body endoporus 212 diameter and produces recessed section
The other end of described cylindrical body 21 is provided with position point 23, described position point 23 has the weak part that can be destroyed by handheld tool, described weak part is used for being formed with anchor pole 1 after being destroyed by handheld tool preventing the connection of anchor pole relative distension element rotation from coordinating, such as weak part is out of shape the screw thread position embedded on anchor pole because of destroyed, and/or, the screw thread position simultaneously destroyed on anchor pole because of this distortion, and form the syndeton of never becoming loose between which, make anchor pole 1 form the entirety that can not relatively rotate with expansion member 2.Described handheld tool is the instrument with functions of wrench or functions of pliers, and such as, it is exactly pliers or spanner, or it also can be the instrument with oil pressure, the power power-assist such as pneumatic, electronic.
Described weak part for wall thickness be less than cylindrical body and the thin-walled 231 and also having that outside has an anti-rotation face 233 to open from thin-walled top towards cylindrical body direction in the groove 232 that communicates of outside.Described position point 23 adopts and carries out based on two positions faced one another of parallel cutting to the end of cylindrical body, and these two opposed facing positions are the thin-walled 231 with described anti-rotation face.This anti-rotation face also can as can overlap by fixture 300 and the anti-rotation face being mated and preventing it from rotating, described fixture 300 is for needing the parts be fixed on matrix, and described matrix is the object 100 arranging described expansion bottom outlet 101.
Described expansion position 22 curves inwardly when not expanding.Have the taper seat 223 carrying out stressed cooperation outside described protruding parts 222, when expansion position is not expanded, the maximum outside diameter of described taper seat 223 is not more than the external diameter of described sleeve body 21.
The nut of described back of the body bolt adopts and presses solidly nut 4, the described nut that presses solidly is provided with and presses solidly deformation section 41, the described deformation section that presses solidly can be destroyed by handheld tool, and the screw thread position embedded on anchor pole, and/or the screw thread position on destruction anchor pole, and form the syndeton of never becoming loose, described in press solidly the profile of deformation section 41 consistent with the profile of described position point 23, also can operated by the instrument identical by the handheld tool operated position point 23.
Syndeton provided by the present invention, comprises the object 100(such as curtain wall panel arranging described expansion bottom outlet 101), the above-mentioned back of the body bolt that is connected with described object 100, described position point 22 is exposed to described expansion bottom outlet 101 aperture place.After by pull-up anchor pole 1 expansion position 22, position point 23 can be destroyed with handheld tool, make setting element 2 and anchor pole 1 form the entirety of never becoming loose.Described expansion bottom outlet mouth is counter bore structure 103, pad 500 is placed with in counter bore structure, when making positive wine pressure, object back is for the overall load of described back of the body bolt, prevents anchor pole from hitting and expands bottom bottom outlet, thus described object can be made thinning and impact without the need to calculating positive wine pressure.
And then be inserted in fixture 300(such as suspension member at position point 23 place), also have the plane coordinated with position point 23 in the hole of ear hanging pieces, thus the anti-rotation forming fixture and expansion member is connected.
Then the nut 41 of back of the body bolt is inserted in anchor pole, fastening, can deformation section be pressed solidly with handheld tool is broken, make nut 4 and anchor pole 1 form the entirety of never becoming loose.
In addition, also can be provided with flexible boot 600 outward in described expansion member, flexible boot is provided with tear fracture mouth at the adjacent expansion position of expansion member, can open and disconnect with expanding plate, thus forms unstressed flexibly connecting in expansion member and sheet material hole wall.
With reference to accompanying drawing 6, 7, 8, described anchor pole is provided with spacing section 11 that is greater than bolt diameter near cone head place, the upper end of cone 10 can form step 101, the function of between spacing section and cone 10 recessed section 12 can be improved, not only just in time expansion member is expanded the curve inwardly size quantity of position before expansion and close at recessed section 12, guarantee now, protruding parts 222 place appearance and size is consistent with cylindrical body, when installing expansion, aduncate multiple expansion position is expanded along cone head, improve expansion effect, and, step between step 101 and the step 24 between the thinning area section expanded inside position and cylindrical body endoporus hole wall forms spacing cooperation, can degrees of expansion and the hole shape at specification expansion position identical, the swollen stress avoiding overdistension to produce causes sheet material to ftracture.
Described spacing section can pre-install time, through installing extruding, spacing cooperation is formed with the step 24 between the thinning area section inside expansion position and cylindrical body endoporus hole wall, described spacing section is stuck between the medial end 225 at step 24 and expansion position, like this, together with anchor pole is preloaded in expansion member, can avoid, in order to prevent back of the body latch to be scattered and nut of screwing on, laying down the duplication of labour of nut when mounted again.
Spacing section 11 can also be utilized and expansion member endoporus hole wall 224 interference fit, interference fit prevents anchor pole rotating function, make expansion member be close to sheet material hole wall simultaneously, effectively prevent protruding parts in expansion member firmly with flexural strength when expanding bottom outlet wall load.Spacing section can be gear hobbing section.
The foregoing is only specific embodiments of the invention, but architectural feature of the present invention is not limited thereto, any those skilled in the art is in the field of the invention, and the change done or modification are all encompassed among protection scope of the present invention.
Claims (10)
1. a back of the body bolt, comprise anchor pole, the expansion member with cone head, expansion member has cylindrical body, is in multiple expansion positions of cylindrical body one end, the inner side at expansion position has the force part coordinated with described cone head, described expansion member is enclosed within outside described anchor pole, the cone head of described anchor pole block by described expansion position and described expansion member cannot be passed; It is characterized in that:
Described expansion position external diameter is consistent with cylindrical body external diameter, and described expansion position is also provided with protruding parts, and described protruding parts is as the force part of matching with the cone position that sheet material expands bottom outlet after the expansion of expansion position;
Being formed inside the expansion segment that multiple expansion positions of described cylindrical body one end surround can for easily expansion and bending thinning area.
2. a kind of back of the body bolt as claimed in claim 1, it is characterized in that, the other end of described cylindrical body is provided with position point, described position point has the weak part that can be destroyed by handheld tool, described weak part is used for being formed with anchor pole after being destroyed by handheld tool preventing the connection of anchor pole relative distension element rotation from coordinating, and makes anchor pole form the entirety that can not relatively rotate with expansion member.
3. a kind of back of the body bolt as claimed in claim 1, it is characterized in that, the described anchor pole with cone head is provided with spacing section; Or the anchor pole with cone head is provided with spacing section, between spacing section and cone head, leave recessed section that can block aduncate expansion position medial end.
4. a kind of back of the body bolt as claimed in claim 2, it is characterized in that, described position point have can overlap by fixture and the anti-rotation face being mated and preventing it from rotating, described fixture is the parts needing to be fixed on matrix, and described matrix is the object arranging described expansion bottom outlet.
5. back of the body bolt as claimed in claim 1 a kind of, is characterized in that, described weak part is that wall thickness is less than cylindrical body and outside has the thin-walled in anti-rotation face, or, be also provided with one or both of following structure:
1) groove that interior outside communicates, is had from thin-walled top towards cylindrical body direction;
2), weak part inwall is provided with projection.
6. a kind of limit-type back of the body bolt as claimed in claim 1, is characterized in that having the taper seat carrying out stressed cooperation outside described protruding parts, and expansion position is not when expanding, and the maximum outside diameter of described taper seat is not more than the external diameter of described sleeve body.
7. a kind of back of the body bolt as claimed in claim 1, it is characterized in that, the nut of described back of the body bolt adopts and presses solidly nut, the described nut that presses solidly is provided with and presses solidly deformation section, the described deformation section that presses solidly can be destroyed by handheld tool, and the screw thread position embedded on anchor pole, and/or destroy the screw thread position on anchor pole, and form the syndeton of never becoming loose; Or, described in press solidly the profile of deformation section also consistent with the profile of described position point.
8. a kind of back of the body bolt as claimed in claim 1, it is characterized in that, described position point adopts and carries out based on two positions faced one another of parallel cutting the end of cylindrical body.
9. a kind of back of the body bolt as claimed in claim 1, it is characterized in that, described handheld tool is the instrument with functions of wrench or functions of pliers.
10. a syndeton, comprise the object that described expansion bottom outlet is set, the back of the body bolt, the fixture that are connected with described object, it is characterized in that: described back of the body bolt adopts back of the body bolt according to claim 1, the other end of described cylindrical body is provided with position point, and described position point is exposed to described expansion bottom outlet aperture place; Fixture also has the anti-rotation face coordinated with position point, and fixture and expansion member anti-rotation are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510443652.7A CN104989063B (en) | 2015-07-24 | 2015-07-24 | A kind of back of the body bolt and attachment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510443652.7A CN104989063B (en) | 2015-07-24 | 2015-07-24 | A kind of back of the body bolt and attachment structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104989063A true CN104989063A (en) | 2015-10-21 |
| CN104989063B CN104989063B (en) | 2018-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510443652.7A Active CN104989063B (en) | 2015-07-24 | 2015-07-24 | A kind of back of the body bolt and attachment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104989063B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194946A (en) * | 2016-07-11 | 2016-12-07 | 杭州斯泰新材料技术有限公司 | A kind of crab-bolt and the installation method on concrete and mounting structure |
| CN110374972A (en) * | 2019-06-14 | 2019-10-25 | 杭州斯泰新材料技术有限公司 | Embedded locking back of the body bolt and its back of the body bolt component with flexible surrounding layer |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0267148A1 (en) * | 1986-11-05 | 1988-05-11 | HILTI Aktiengesellschaft | Expansion dowel with two different expanding tapers |
| CN201078375Y (en) * | 2007-07-25 | 2008-06-25 | 吴斌 | Built-in type general use back bolt |
| CN203348282U (en) * | 2013-07-18 | 2013-12-18 | 曾祥录 | Locking device for large-specification bolt connecting piece |
| CN203462619U (en) * | 2013-08-01 | 2014-03-05 | 斯泰科技（杭州）有限公司 | Fatigue resistant long-acting back bolt |
| DE102013206387A1 (en) * | 2013-04-11 | 2014-10-16 | Hilti Aktiengesellschaft | anchor |
| CN104454865A (en) * | 2014-12-05 | 2015-03-25 | 斯泰科技（杭州）有限公司 | Back bolt |
| CN104481110A (en) * | 2014-12-05 | 2015-04-01 | 斯泰科技（杭州）有限公司 | Back bolt |
| CN205088908U (en) * | 2015-07-24 | 2016-03-16 | 杭州斯泰新材料技术有限公司 | Back of body is tied and connection structure |
-
2015
- 2015-07-24 CN CN201510443652.7A patent/CN104989063B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0267148A1 (en) * | 1986-11-05 | 1988-05-11 | HILTI Aktiengesellschaft | Expansion dowel with two different expanding tapers |
| CN201078375Y (en) * | 2007-07-25 | 2008-06-25 | 吴斌 | Built-in type general use back bolt |
| DE102013206387A1 (en) * | 2013-04-11 | 2014-10-16 | Hilti Aktiengesellschaft | anchor |
| CN203348282U (en) * | 2013-07-18 | 2013-12-18 | 曾祥录 | Locking device for large-specification bolt connecting piece |
| CN203462619U (en) * | 2013-08-01 | 2014-03-05 | 斯泰科技（杭州）有限公司 | Fatigue resistant long-acting back bolt |
| CN104454865A (en) * | 2014-12-05 | 2015-03-25 | 斯泰科技（杭州）有限公司 | Back bolt |
| CN104481110A (en) * | 2014-12-05 | 2015-04-01 | 斯泰科技（杭州）有限公司 | Back bolt |
| CN205088908U (en) * | 2015-07-24 | 2016-03-16 | 杭州斯泰新材料技术有限公司 | Back of body is tied and connection structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194946A (en) * | 2016-07-11 | 2016-12-07 | 杭州斯泰新材料技术有限公司 | A kind of crab-bolt and the installation method on concrete and mounting structure |
| CN110374972A (en) * | 2019-06-14 | 2019-10-25 | 杭州斯泰新材料技术有限公司 | Embedded locking back of the body bolt and its back of the body bolt component with flexible surrounding layer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104989063B (en) | 2018-01-12 |
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