CN105570257B - A kind of assembly and disassembly methods for the expansion bolt that can be removed completely - Google Patents

A kind of assembly and disassembly methods for the expansion bolt that can be removed completely Download PDF

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Publication number
CN105570257B
CN105570257B CN201610102715.7A CN201610102715A CN105570257B CN 105570257 B CN105570257 B CN 105570257B CN 201610102715 A CN201610102715 A CN 201610102715A CN 105570257 B CN105570257 B CN 105570257B
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CN
China
Prior art keywords
sleeve
screw rod
screw
bar
interior
Prior art date
Application number
CN201610102715.7A
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Chinese (zh)
Other versions
CN105570257A (en
Inventor
郭保林
江大全
吴庆东
刘龙江
单川
梅佳鸿
刘帅
张国燕
段宾
王志强
程相甫
Original Assignee
山东省路桥集团有限公司
青岛林川工程技术咨询有限公司
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Application filed by 山东省路桥集团有限公司, 青岛林川工程技术咨询有限公司 filed Critical 山东省路桥集团有限公司
Priority to CN201610102715.7A priority Critical patent/CN105570257B/en
Priority to CN201410525527.6A priority patent/CN104314944B/en
Publication of CN105570257A publication Critical patent/CN105570257A/en
Application granted granted Critical
Publication of CN105570257B publication Critical patent/CN105570257B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B13/00Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04Dowels 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
    • F16B13/06Dowels 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B13/00Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04Dowels 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
    • F16B13/06Dowels 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
    • F16B13/063Dowels 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
    • F16B13/065Dowels 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 the screw, nail or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23POTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts

Abstract

The invention provides a kind of assembly and disassembly methods for the expansion bolt that can be removed completely.The problem of solving not removing after existing expansion bolt assembling.The expansion bolt includes screw rod, screw rod small end is fastening thread bar, big end sets the dovetail post of tapered, expansion screw section is set on the body of rod, screw rod periphery is socketed inner sleeve, the tail end of inner sleeve opens up some interior stern notches and the tail end of inner sleeve is divided into several interior swollen bars, assembling thread segment is set on the internal perisporium of inner sleeve, assemble thread segment and form screw thread cooperation with expansion screw section, some interior pulling eyes are opened up on the head end of inner sleeve, the periphery socket outer sleeve of inner sleeve, the tail end of outer sleeve opens up some outer stern notches and the tail end of outer sleeve is divided into several outer swollen bars, some outer pulling eyes are opened up on the head end of outer sleeve, also include fastening cover, the fastening enclosure is connected on outer sleeve, on the head end of inner sleeve and screw rod, connected nut is covered on the fastening thread bar of screw rod.The present invention can be removed completely, so as to lift the integrality of reparation, the life-span is repaired in extension.

Description

A kind of assembly and disassembly methods for the expansion bolt that can be removed completely

The application is application number 201410525527.6,9 days October 2014 applying date, " one kind can be complete for denomination of invention The divisional application of the expansion bolt and its assembly and disassembly methods of dismounting ".

Technical field

The invention belongs to construction and installation component technology field, it is adaptable to which concrete structure repairs work under water or under tide environment The template of journey or the fixation of support, particularly a kind of assembly and disassembly methods for the expansion bolt that can be removed completely.

Background technology

Conventional expansion bolt utilizes end wedge configuration, and by the relative movement of screw rod and sleeve pipe, wedge shape struts set ttom of pipe Portion, realizes that sleeve pipe is contacted with the effective of works hole wall, so as to provide the anti-pulling ability of screw rod.

But because sleeve pipe is squeezed end gross distortion, it is impossible to normal to take out, and screw rod end wedge shape is minimum external Circular diameter is greater than the interior diameter of not deformed anterior cannula, just because of sleeve pipe can not take out, directly resulting in screw rod can not also take out.With , it is necessary in its surface fixed form, using expansion under toward repairing rehydration or when having a concrete structure surface of tidal effect Bolt fixation is the method for the most frequently used also most convenient, and the consumption of expansion bolt is relatively more toward contact, but conventional expansion Bolt just can not be removed after use.Gap between screw rod and sleeve pipe can not effectively be blocked, although concrete structure is to fix Defect area, but the passage inside some extraneous corrosive mediums intrusion works has been manufactured in repair process again.

Since installation form is the most frequently used when expansion bolt is local defect of concrete reparation, most easy method, that is just non- Often it is necessary a kind of expansion bolt that can smoothly remove after use of exploitation, can not be taken out with to make up existing expansion bolt and brought The problem of.

The content of the invention

The purpose of the present invention is there is above mentioned problem for existing technology, it is proposed that a kind of by setting up expansion sleeve, And locking mechanism is set respectively, to realize the overdose space of flexibly increase dismounting, reach the reverse dismounting operation after expansion assembling The expansion bolt and its assembly and disassembly methods that can remove completely.

The purpose of the present invention can be realized by following technical proposal:A kind of expansion bolt that can be removed completely, including spiral shell Bar, the screw rod is the cylindric body of rod of variable cross-section, and the small end of the body of rod is fastening thread bar, and the big end of the body of rod sets tapered Dovetail post, expansion screw section is set on the body of rod, and the screw rod periphery is socketed inner sleeve, and the tail end of the inner sleeve is opened vertically If some interior stern notches, the tail end of inner sleeve is divided into setting on several interior swollen bars, the internal perisporium of the inner sleeve by interior stern notch to be assembled Thread segment, assembling thread segment forms screw thread with expansion screw section and coordinated, and some interior pulling eyes, institute are opened up on the head end of the inner sleeve State the periphery socket outer sleeve of inner sleeve, the tail end of the outer sleeve opens up some outer stern notches vertically, outer stern notch is by outer sleeve Tail end be divided on several outer swollen bars, the head end of the outer sleeve and open up some outer pulling eyes, in addition to fastening cover, the fastening cover On the head end for being socketed in outer sleeve, inner sleeve and screw rod, connected nut is covered on the fastening thread bar of the screw rod.

Originally in the expansion bolt that can be removed completely, screw rod is specially variable cross-section rod-like structure, and its one end circular diameter is big, as Tail end, other end circular diameter is small, and as head end, intermediate, inclined transition forms certain taper.The dovetail post of taper platform shape, its is small Footpath end face is connected the tail end of screw rod, and its bigger diameter end is faced outwardly, overall to be set with screw coaxial line.Expansion screw section be located proximate to Dovetail post, expansion screw section has 2~4 circle screw threads, and external diameter of the external diameter more than fastening thread bar of expansion screw section.Inner sleeve On some interior stern notches be evenly distributed so that the width of interior swollen bar is consistent, and some outer stern notches on outer sleeve are evenly distributed, So that the width of outer swollen bar is consistent, the length of interior swollen bar is less than the length of outer swollen bar in addition.The head end of inner sleeve is relative to open up two Individual interior pulling eye, is easy to clamp inner sleeve by interior pulling eye, prevents that inner sleeve follows rotation in rotational lock, convenient when removing Inner sleeve is pulled out.Outer sleeve is shorter in length than inner sleeve, and the head end of outer sleeve is relative to open up two outer pulling eyes, pass through outer pulling eye It is easy to clamp outer sleeve, is easy to pull out outer sleeve in rotation and dismounting.

In the above-mentioned expansion bolt that can be removed completely, the screw thread of the expansion screw section screws direction and fastening thread The screw thread of bar is screwed in the opposite direction.Expansion screw section and one in fastening thread bar are left hand thread, and another one is right-handed thread, To ensure to prevent the threaded connection of screw rod and inner sleeve from releasing in tightening nut.

In the above-mentioned expansion bolt that can be removed completely, the internal diameter specification of the inner sleeve is divided into three sections, interior swollen bar Internal diameter is more than the external diameter of expansion screw section, and the internal diameter and the external diameter of expansion screw section for assembling thread segment match, remaining cylinder Internal diameter is more than the external diameter of fastening thread bar.

In the above-mentioned expansion bolt that can be removed completely, the outside diameter of the dovetail post is less than the internal diameter of outer sleeve, And more than the internal diameter of inner sleeve;The end diameter of the dovetail post is less than the internal diameter of swollen bar on inner sleeve.

In the above-mentioned expansion bolt that can be removed completely, recessed interior six on the outer face of the fastening thread bar of the screw rod Corner apertures, the inner hexagonal hole is centrally located on the axis of screw rod.Inner hexagonal hole is specifically opened in the small of the variable cross-section column body of rod Hold on end face, insert inner hexagonal hole and rotary screw using instrument, realize rotate in a circumferential direction movement of the screw rod relative to inner sleeve.

In the above-mentioned expansion bolt that can be removed completely, the fastening cover is ladder tubulose, and ladder tubulose is divided into aperture The three sections of bodys successively decreased successively, the large aperture body positioned at endpiece is socketed on outer sleeve, the middle aperture body set positioned at stage casing It is connected on inner sleeve, the small-bore body positioned at first section is socketed on fastening thread bar.Large aperture body is slightly larger than outside outer sleeve Footpath, its length should ensure that pulling eye in after fastening, outer pulling eye are all exposed;Middle aperture body is slightly larger than inner sleeve external diameter, its length For covering inner sleeve exposes section just after fastening;Small-bore body is slightly larger than fastening thread bar external diameter, and its length must not exceed The half of fastening thread bar.Large aperture body, the step width of middle aperture body are respectively greater than the wall thickness of outer sleeve, inner sleeve.

The installation method for the expansion bolt that can be removed completely, including following installation steps:

Step one:Screw rod is passed through into inner sleeve by the fastening thread bar of small end, then outer sleeve is pierced into again as overall, this When the dovetail post of screw rod, the interior swollen bar of inner sleeve, the outer swollen bar of outer sleeve be unanimously in end-position, then by screw rod, inner sleeve Cylinder, outer sleeve are put into the pre-drilled through hole of works in the lump, and the tail end with dovetail post is upstream end;

Step 2:The interior pulling eye of inner sleeve is clamped using instrument, while rotate screw rod with instrument rotation inner hexagonal hole, Expansion screw section on screw rod is screwed along the assembling thread segment of inner sleeve to be moved, and screw rod is gradually outwards screwed out by inner sleeve, is entered And the pillared interior swollen bar for opening inner sleeve of dovetail, the rotary course continues to the approximate aperture of interior swollen bar to be more than outer sleeve external diameter and to connect The through-hole diameter of nearly works;

Step 3:The fastening enclosure is put on the external part of screw rod, inner sleeve and outer sleeve, is close to structure object plane, so Connected nut is covered on fastening thread bar afterwards, promotes screw rod to continue to be displaced outwardly by rotating nut, so as to force the interior of inner sleeve Swollen bar gradually struts the outer swollen bar of outer sleeve, it is ensured that outer swollen bar is in close contact with works hole wall, realizes the installation of expansion bolt.

The method for dismounting for the expansion bolt that can be removed completely, including following dismantling step:

Step one:Screw off nut, remove fastening cover, make the outer pulling eye on the interior pulling eye on inner sleeve, outer sleeve exposed Outside works;

Step 2:Using instrument rotation inner hexagonal hole make screw rod along inner sleeve to through hole inside move, treat the expansion of screw rod After the assembling thread segment of thread segment and inner sleeve is completely disengaged from, screw rod is rapped into through hole, screw rod is completely disengaged from inner sleeve;

Step 3:The interior pulling eye of inner sleeve is clamped, inner sleeve is pulled out, screw rod is then taken out, finally clamps overcoat The outer pulling eye of cylinder, pulls out outer sleeve, realizes the complete dismounting of expansion bolt.

Compared with prior art, the expansion bolt and its assembly and disassembly methods that originally can be removed completely are set up in conventional expanded bolt Inner sleeve, makes it be socketed between screw rod and outer sleeve, screw rod and inner sleeve can be first released in the dismantling operation of expansion bolt Swelling between cylinder, so as to obtain dismounting overdose space, smoothly by screw rod, inner sleeve and the equal removal of outer sleeve, reaches and tears open completely The effect removed, to block the gap for repairing wall surface, prevents the intrusion of corrosive substance, lifts the integrality repaired, extension Repair the life-span.

Brief description of the drawings

Fig. 1 is the first state structure chart for the expansion bolt that originally can be removed completely.

Fig. 2 is the second structure graph of the expansion bolt that originally can be removed completely.

Fig. 3 is the structure chart of screw rod in the expansion bolt that originally can be removed completely.

Fig. 4 is the three-dimensional structure diagram for the expansion bolt use state that originally can be removed completely.

Fig. 5 is the sectional structure chart for the expansion bolt use state that originally can be removed completely.

In figure, 1, screw rod, 1-1, inner hexagonal hole, 1-2, dovetail post, 1-3, expansion screw section, 1-4, fastening thread bar, 2, Inner sleeve, 2-1, interior stern notch, 2-2, interior swollen bar, 3, outer sleeve, 3-1, outer stern notch, 3-2, outer swollen bar, 3-3, outer pulling eye, 4, fastening Cover, 5, works, 5-1, through hole, 6, nut.

Embodiment

The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described, But the present invention is not limited to these embodiments.

As shown in Figures 1 to 5, the expansion bolt that originally can be removed completely mainly includes screw rod 1, inner sleeve 2, outer sleeve 3, tight Admittedly cover 4 and nut 6.

Screw rod 1 is the cylindric body of rod, specially variable cross-section rod-like structure, and its one end circular diameter is big, is used as tail end;The other end Circular diameter is small, is used as head end;Intermediate, inclined transition forms certain taper.The small end of the body of rod of screw rod 1 is fastening thread bar 1-4, bar The big end of body sets the dovetail post 1-2 of tapered, and its path end face is connected the tail end of screw rod 1, and its bigger diameter end is faced outwardly, overall It is coaxially set with screw rod 1.Expansion screw section 1-3 is set on the body of rod, and expansion screw section 1-3's is located proximate to dovetail post 1-2, swollen Swollen thread segment 1-3 has 2~4 circle screw threads, and expansion screw section 1-3 external diameter of the external diameter more than fastening thread bar 1-4.

The periphery of screw rod 1 is socketed inner sleeve 2, and the tail end of inner sleeve 2 opens up some interior stern notch 2-1, these interior stern notches vertically 2-1 is evenly distributed, and the tail end of inner sleeve 2 is divided into several interior swollen bar 2-2, and makes interior swollen bar 2-2 width consistent.Inner sleeve Assembling thread segment is set on the internal perisporium of cylinder 2, and assembling thread segment can coordinate with expansion screw section 1-3 formation screw threads.Inner sleeve 2 Head end is relative to open up two interior pulling eyes, is easy to clamp inner sleeve 2 by interior pulling eye, prevents that inner sleeve 2 is followed in rotational lock Rotate, it is convenient to pull out inner sleeve 2 when removing.

The periphery socket outer sleeve 3 of inner sleeve 2, and outer sleeve 3 is shorter in length than inner sleeve 2.The tail end of outer sleeve 3 is along axle To some outer stern notch 3-1 are opened up, these outer stern notch 3-1 are evenly distributed, and the tail end of outer sleeve 3 is divided into several outer swollen bar 3- 2, and make outer swollen bar 3-2 width consistent, interior swollen bar 2-2 length is less than outer swollen bar 3-2 length in addition.The head of outer sleeve 3 End is relative to open up two outer pulling eye 3-3, is easy to clamp outer sleeve 3 by outer pulling eye 3-3, is easy to overcoat in rotation and dismounting Cylinder 3 is pulled out.

Fastening cover 4 is socketed on the head end of outer sleeve 3, inner sleeve 2 and screw rod 1, is covered on the fastening thread bar 1-4 of screw rod 1 Connected nut 6.

Expansion screw section 1-3 screw thread screws direction and fastening thread bar 1-4 screw thread is screwed in the opposite direction.Specifically, One is left hand thread in expansion screw section 1-3 and fastening thread bar 1-4, and another one is right-handed thread, to ensure screwing spiral shell During mother 6, prevent the threaded connection of screw rod 1 and inner sleeve 2 from releasing.

The internal diameter specification of inner sleeve 2 is divided into three sections, and interior swollen bar 2-2 internal diameter is more than expansion screw section 1-3 external diameter, assembling The external diameter of the internal diameter of thread segment and expansion screw section 1-3 matches, and the internal diameter of remaining cylinder is more than the outer of fastening thread bar 1-4 Footpath.Dovetail post 1-2 outside diameter is less than the internal diameter of outer sleeve 3, and more than the internal diameter of inner sleeve 2;Dovetail post 1-2 small end is straight Footpath is less than the internal diameter of swollen bar 2-2 on inner sleeve 2.

Recessed inner hexagonal hole 1-1 on the fastening thread bar 1-4 of screw rod 1 outer face, inner hexagonal hole 1-1 are centrally located at On the axis of screw rod 1.Inner hexagonal hole 1-1 is specifically opened on the small end end face of the variable cross-section column body of rod, is inserted using instrument Inner hexagonal hole 1-1 and rotary screw 1, realize rotate in a circumferential direction movement of the screw rod 1 relative to inner sleeve 2.

Fastening cover 4 is ladder tubulose, and ladder tubulose is divided into three sections of bodys that aperture is successively decreased successively, positioned at the large aperture of endpiece Body is socketed on outer sleeve 3, and the middle aperture body positioned at stage casing is socketed on inner sleeve 2, positioned at the small-bore body of first section It is socketed on fastening thread bar 1-4.Large aperture body is slightly larger than the external diameter of outer sleeve 3, and its length should ensure that pulling eye in after fastening, outer Pulling eye 3-3 is all exposed;Middle aperture body is slightly larger than the external diameter of inner sleeve 2, and its length is the lucky dew for covering inner sleeve 2 after fastening Go out section;Small-bore body is slightly larger than fastening thread bar 1-4 external diameters, and its length must not exceed fastening thread bar 1-4 half.Macropore Footpath body, the step width of middle aperture body are respectively greater than outer sleeve 3, the wall thickness of inner sleeve 2.

The installation method for the expansion bolt that can be removed completely, including following installation steps:

Step one:Screw rod 1 is passed through into inner sleeve 2 by the fastening thread bar 1-4 of small end, then overcoat is pierced into again as overall Cylinder 3, now the outer swollen bar 3-2 of the dovetail post 1-2 of screw rod 1, the interior swollen bar 2-2 of inner sleeve 2, outer sleeve 3 is unanimously in tail end position Put, then screw rod 1, inner sleeve 2, outer sleeve 3 are put into the pre-drilled through hole 5-1 of works 5 in the lump, and with dovetail post 1-2 tail end is upstream end;

Step 2:The interior pulling eye of inner sleeve 2 is clamped using instrument, while making screw rod 1 with instrument rotation inner hexagonal hole 1-1 Rotate, assembling thread segments of the expansion screw section 1-3 along inner sleeve 2 on screw rod 1, which is screwed, to be moved, and makes screw rod 1 gradually by inner sleeve 2 Outwards screw out, and then dovetail post 1-2 struts the interior swollen bar 2-2 of inner sleeve 2, the rotary course continues to interior swollen bar 2-2 equivalent Aperture is more than the external diameter of outer sleeve 3 and close to the through hole 5-1 diameters of works 5;

Step 3:Fastening cover 4 is nested with the external part of screw rod 1, inner sleeve 2 and outer sleeve 3, is close to works 5 flat Face, connected nut 6 is then covered on fastening thread bar 1-4, promotes screw rod 1 to continue to be displaced outwardly by rotating nut 6, so as to force The interior swollen bar 2-2 of inner sleeve 2 gradually struts the outer swollen bar 3-2 of outer sleeve 3, it is ensured that outer swollen bar 3-2 closely connects with the hole wall of works 5 Touch, realize the installation of expansion bolt.

The method for dismounting for the expansion bolt that can be removed completely, including following dismantling step:

Step one:Nut 6 is screwed off, fastening cover 4 is removed, makes the outer pulling eye 3-3 on the interior pulling eye on inner sleeve 2, outer sleeve 3 It is exposed in the outside of works 5;

Step 2:Using instrument rotation inner hexagonal hole 1-1 make screw rod 1 along inner sleeve 2 to through hole 5-1 inside move, treat spiral shell After the expansion screw section 1-3 of bar 1 and the assembling thread segment of inner sleeve 2 are completely disengaged from, screw rod 1 is rapped into through hole 5-1, makes screw rod 1 completely disengages from inner sleeve 2;

Step 3:The interior pulling eye of inner sleeve 2 is clamped, inner sleeve 2 is pulled out, screw rod 1 is then taken out, finally clamped outer The outer pulling eye 3-3 of sleeve 3, pulls out outer sleeve 3, realizes the complete dismounting of expansion bolt.

Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.

Although more having used screw rod 1 herein, inner hexagonal hole 1-1, dovetail post 1-2, expansion screw section 1-3 fasten spiral shell Rasp bar 1-4, inner sleeve 2, interior stern notch 2-1, interior swollen bar 2-2, outer sleeve 3, outer stern notch 3-1, outer swollen bar 3-2, outer pulling eye 3-3, tightly Admittedly cover 4, works 5, through hole 5-1, the grade term of nut 6, but it is not precluded from the possibility using other terms.Use these terms Just for the sake of more easily describing and explaining the essence of the present invention;Be construed as any additional limitation be all with What spirit of the present invention was disagreed.

Claims (2)

1. a kind of installation method for the expansion bolt that can be removed completely, the expansion bolt includes screw rod, the screw rod is variable cross-section The cylindric body of rod, the small end of the body of rod is fastening thread bar, and the big end of the body of rod sets and set on the dovetail post of tapered, the body of rod Expansion screw section, the screw rod periphery is socketed inner sleeve, and the tail end of the inner sleeve opens up some interior stern notches, interior stern notch vertically By the tail end of inner sleeve be divided on several interior swollen bars, the internal perisporium of the inner sleeve set assembling thread segment, assembling thread segment with Expansion screw section forms screw thread and coordinated, and some interior pulling eyes, the periphery socket of the inner sleeve are opened up on the head end of the inner sleeve Outer sleeve, the tail end of the outer sleeve opens up some outer stern notches vertically, and the tail end of outer sleeve is divided into several outer swollen by outer stern notch Some outer pulling eyes, in addition to fastening cover are opened up on bar, the head end of the outer sleeve, the fastening enclosure is connected on outer sleeve, inner sleeve On the head end of cylinder and screw rod, connected nut is covered on the fastening thread bar of the screw rod;It is characterised in that it includes following installation steps:
Step one:Screw rod is passed through into inner sleeve by the fastening thread bar of small end, then outer sleeve is pierced into again as overall, now spiral shell The dovetail post of bar, the interior swollen bar of inner sleeve, the outer swollen bar of outer sleeve are unanimously in end-position, then by screw rod, inner sleeve, outer Sleeve is put into the pre-drilled through hole of works in the lump, and the tail end with dovetail post is upstream end;
Step 2:The interior pulling eye of inner sleeve is clamped using instrument, while rotate screw rod with instrument rotation inner hexagonal hole, screw rod On expansion screw section screw and move along the assembling thread segment of inner sleeve, screw rod is gradually outwards screwed out by inner sleeve, Jin Eryan Stern post struts the interior swollen bar of inner sleeve, and the rotary course continues to the approximate aperture of interior swollen bar to be more than outer sleeve external diameter and close knot The through-hole diameter of structure thing;
Step 3:The fastening enclosure is put on the external part of screw rod, inner sleeve and outer sleeve, is close to structure object plane, Ran Hou Connected nut is covered on fastening thread bar, promotes screw rod to continue to be displaced outwardly by rotating nut, so as to force the interior swollen bar of inner sleeve Gradually strut the outer swollen bar of outer sleeve, it is ensured that outer swollen bar is in close contact with works hole wall, realizes the installation of expansion bolt.
2. a kind of method for dismounting for the expansion bolt that can be removed completely, the expansion bolt includes screw rod, the screw rod is variable cross-section The cylindric body of rod, the small end of the body of rod is fastening thread bar, and the big end of the body of rod sets and set on the dovetail post of tapered, the body of rod Expansion screw section, the screw rod periphery is socketed inner sleeve, and the tail end of the inner sleeve opens up some interior stern notches, interior stern notch vertically By the tail end of inner sleeve be divided on several interior swollen bars, the internal perisporium of the inner sleeve set assembling thread segment, assembling thread segment with Expansion screw section forms screw thread and coordinated, and some interior pulling eyes, the periphery socket of the inner sleeve are opened up on the head end of the inner sleeve Outer sleeve, the tail end of the outer sleeve opens up some outer stern notches vertically, and the tail end of outer sleeve is divided into several outer swollen by outer stern notch Some outer pulling eyes, in addition to fastening cover are opened up on bar, the head end of the outer sleeve, the fastening enclosure is connected on outer sleeve, inner sleeve On the head end of cylinder and screw rod, connected nut is covered on the fastening thread bar of the screw rod;It is characterised in that it includes following dismantling step:
Step one:Nut is screwed off, fastening cover is removed, makes the outer pulling eye on the interior pulling eye on inner sleeve, outer sleeve exposed in structure Beyond the region of objective existence face;
Step 2:Using instrument rotation inner hexagonal hole make screw rod along inner sleeve to through hole inside move, treat the expansion screw of screw rod After the assembling thread segment of section and inner sleeve is completely disengaged from, screw rod is rapped into through hole, screw rod is completely disengaged from inner sleeve;
Step 3:The interior pulling eye of inner sleeve is clamped, inner sleeve is pulled out, screw rod is then taken out, finally clamps outer sleeve Outer pulling eye, pulls out outer sleeve, realizes the complete dismounting of expansion bolt.
CN201610102715.7A 2014-10-09 2014-10-09 A kind of assembly and disassembly methods for the expansion bolt that can be removed completely CN105570257B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201610102715.7A CN105570257B (en) 2014-10-09 2014-10-09 A kind of assembly and disassembly methods for the expansion bolt that can be removed completely
CN201410525527.6A CN104314944B (en) 2014-10-09 2014-10-09 A kind of expansion bolt that can remove completely and assembly and disassembly methods thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610102715.7A CN105570257B (en) 2014-10-09 2014-10-09 A kind of assembly and disassembly methods for the expansion bolt that can be removed completely

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201410525527.6A Division CN104314944B (en) 2014-10-09 2014-10-09 A kind of expansion bolt that can remove completely and assembly and disassembly methods thereof

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Publication Number Publication Date
CN105570257A CN105570257A (en) 2016-05-11
CN105570257B true CN105570257B (en) 2017-08-04

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GB2304850A (en) * 1995-08-31 1997-03-26 Antonio Paya Polo Expanding anchor bolt
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