CN103807259B - A kind of card slot type detachable reaming crab-bolt - Google Patents

A kind of card slot type detachable reaming crab-bolt Download PDF

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Publication number
CN103807259B
CN103807259B CN201310416601.6A CN201310416601A CN103807259B CN 103807259 B CN103807259 B CN 103807259B CN 201310416601 A CN201310416601 A CN 201310416601A CN 103807259 B CN103807259 B CN 103807259B
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locking key
key blade
bolt
shaped
sleeve pipe
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CN103807259A (en
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徐宝余
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Nanjing Mankate science and Technology Co., Ltd.
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徐宝余
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Abstract

The present invention relates to a kind of card slot type detachable reaming crab-bolt, including conical screw 1, locking key blade 2, jump ring 3, sleeve pipe 4, plain washer 5, spring washer 6 and nut 7;Wherein, described conical screw be an one end with conical head, the other end has the screw rod of a tooth;Locking key blade is the arc metal plate that there is T-shaped dop one end, and there are jump-ring slot, inner side limited location bracket in the outside of T-shaped dop;Jump ring is a C-shaped steel wire;Sleeve pipe is a hollow circular-tube, its lower end, has the T-slot mouth equal with locking key blade quantity, and the shape of notch is consistent with T-shaped dop, it is ensured that T-shaped dop can easily enter;During dismounting, unclamping nut, touch screw rod, allow expansion-head sink at the bottom of hole, catch on lifting bayonet socket with L-shaped grab, be lifted up, just can be taken off sleeve pipe and locking key blade, further take out screw rod, dismounting completes;Present configuration is simple, and tensile strength is high, does not leave any vestige, low cost during replacing, and speed is fast, does not affects the appearance;Easy to spread universal.

Description

A kind of card slot type detachable reaming crab-bolt
Technical field
The present invention relates to a kind of card slot type detachable reaming crab-bolt, especially relate to a kind of two locking key blades or three locking key blades And the card slot type detachable reaming crab-bolt of multiple locking key blades of more than three, its mainly by Nanjing Man Kate company produce can Dismounting reaming (MKT-CK) crab-bolt.The application of this reaming crab-bolt relate generally to nuclear power station, power plant, tunnel, track traffic, The rear anchoring in multiple fields such as building is installed fixing.
Background technology
Installation in the engineerings such as nuclear power station, power plant, subway, tunnel, basis be fixing is fixed, and often uses post-anchoring technology, In industrial civil building engineering, the status of post-anchoring technology is more and more important.If the inefficacy of rear anchor system can direct band next life Life and the loss of property, so it is necessary for using reliable anchor system, but aging replacing is more important.Rear anchoring product from Divide on bearing mechanism and mainly have friction, mechanical caging and chemical bonding three types, wherein realize the expansion connected with frictional force Method connects the most firm, and breakout capacity is poor;Common rear reaming mechanical anchor and cannot be carried out former after reaming mechanical anchor is installed Hole is changed, and if over the transition of time, crab-bolt is aging to be updated, and the present invention is by completely can easily can by weathered Displacement reaming crab-bolt, taking-up complete from hole, and ensure the excellent of foramen primum, in order to again implant homologous series same model Replaceable reaming crab-bolt, can exempt redrilling reaming, and ensure that basal body structure does not increase new injury, attractive in appearance not by shadow Ring.Reduce workload and the cost of replacing.The present invention uses the principle of draw-in groove and hinge to be arranged on sleeve pipe by locking key blade, Wave freely, expansible, can merge, just can easily take out from hole after merging, tensile strength and non-removable reaming anchor Bolt does not has difference, current this detachable reaming crab-bolt technology the most not to be paid attention to by people.
At present, particularly track traffic, the rear reaming crab-bolt used now is all to dismantle product, 5 years, 10 years or ten After for many years, crab-bolt is aging, how to change, and can allow a lot of enterprise and research institution is to change aging mechanical anchor to overtax one's nerves expense Power, non-removable crab-bolt replacement cost is higher, changes long in time limit, and it is attractive in appearance to affect engineering.
Summary of the invention
It is an object of the invention to provide a kind of card slot type detachable reaming crab-bolt, Nanjing Man Kate company produce, hand over for track The cause such as logical provide a kind of easy for installation, change card slot type convenient and simple, relative inexpensiveness detachable reaming crab-bolt.
In order to reach each purpose above-mentioned, present invention employs techniques below scheme: a kind of card slot type detachable reaming crab-bolt, bag Including conical screw, locking key blade, jump ring, sleeve pipe, plain washer, spring washer and nut, wherein, described conical screw is one Root one end is with the screw rod of conical head, and the other end has the silk tooth screw rod for twisting nut;Locking key blade is that an one end has T-shaped The arc metal plate of dop, and there is the most laterally jump-ring slot in the outside of blade upper end T-shaped head, and there is one blade stopper slot inner side (see Fig. 4), jump ring is a C-shaped steel wire, and it ensure that locking key blade will not be spontaneously decoupled T-slot from outside of sleeve; Under the effect by conical screw conical head pushing force, locking key blade is with jump ring as axle center, and expanding outwardly slowly, until complete The hole of complete and rear expansion matches, and tightening nuts can produce tensile strength;Sleeve pipe is a conglobate hollow circular-tube of car. Near one end i.e. lower end of locking key blade, have two or more T-slot mouth equal with locking key blade quantity, the shape of notch with The first cause of T-shaped of locking key blade upper end, it is ensured that the T-shaped head of locking key blade can easily be entered, also to leave some gaps, The size in gap is to meet in locking key blade working engineering, and the angle easily expanded outwardly is more than conical head tapering;And, One cannelure of outside car of sleeve pipe, the degree of depth of groove and width are consistent with the jump-ring slot of locking key blade, and ensure to assemble rear and lock The jump-ring slot of key blade is in same level, it is ensured that jump ring can easily block into, and not above sleeve pipe lateral surface (see Fig. 5);Bottommost connected component outside T-slot, car has the overlap of tiny one, utilize this overlap as the spacing torr of blade, Prevent locking key blade landing inside T-slot (see Fig. 6).
The other end of sleeve pipe i.e. upper end, is milled with two or more L-shaped or the lifting bayonet socket of inverted T-shaped, in order to as Extract impetus during crab-bolt sleeve pipe.
The card slot type detachable reaming crab-bolt of the present invention possesses techniques below effect: 1, possess all functions of common rear reaming crab-bolt, 2, can arbitrarily dismantle and matrix will not be produced injury, 3, aging after the crab-bolt of same specification same model that more can renew with foramen primum, Low cost, speed is fast, does not affects the appearance.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram of the card slot type detachable reaming crab-bolt of the present invention;
Fig. 2 is the card slot type detachable reaming crab-bolt duty schematic appearance of the present invention;
Fig. 3 is the card slot type detachable reaming crab-bolt structural representation of the present invention;
Fig. 4 is locking key blade figure;
Fig. 5 is sleeve pipe outline drawing;
Fig. 6 is sleeve pipe profile;
Wherein in figure, mark is described as follows: 1-conical screw, 2-locking key blade, 3-jump ring, 4-sleeve pipe, 5-plain washer, 6-bullet Spring packing ring, 7-nut.
Detailed description of the invention
Describe the card slot type detachable reaming crab-bolt of the present invention below in conjunction with the accompanying drawings in detail, Nanjing Man Kate company the draw-in groove produced Formula detachable reaming crab-bolt (MKT-CK).Refer to shown in Fig. 1-6, in conjunction with accompanying drawing, the enforcement of the present invention is explained, with Make any staff being familiar with this technology can implement according to this after studying this specification carefully.
Embodiment 1
As shown in figures 1-6, a kind of card slot type detachable reaming crab-bolt, including conical screw 1, locking key blade (such as locking key leaf Sheet is two panels) 2, jump ring 3, sleeve pipe 4, plain washer 5, spring washer 6 and nut 7;Wherein, described conical screw is one One end, with conical head, can be referred to as again expansion-head, and the other end has the screw rod of a tooth, and this conical screw can be once-forming Entirety, it is also possible to be one can be with separate assembly;Locking key blade is the arc metal plate that there is T-shaped dop an one end, And there is the most laterally jump-ring slot in the outside of blade upper end T-shaped head, there is one spacing bracket of blade inner side;Jump ring is a C-shaped Steel wire, it ensure that locking key blade will not be spontaneously decoupled T-slot from outside of sleeve;Sleeve pipe is a conglobate open circles of car Pipe.Near one end i.e. lower end of locking key blade, there are two or more T-slot mouth equal with locking key blade quantity, the shape of notch The first cause of T-shaped of shape and locking key blade upper end, it is ensured that the T-shaped head of locking key blade can easily be entered, between also leaving a bit Gap, the size in gap is to meet in locking key blade working engineering, and the angle easily expanded outwardly is more than conical head tapering;And And, one cannelure of outside car of sleeve pipe, the jump-ring slot of the degree of depth of groove and width and locking key blade is consistent, and ensures to assemble Afterwards with the jump-ring slot of locking key blade in same level, it is ensured that jump ring can easily block into, and not above sleeve pipe outside Side;Bottommost connected component outside T-slot, car falls a part, leaves one overlap, utilizes this overlap as blade Spacing torr, prevents the landing inside T-slot of locking key blade;The other end of sleeve pipe i.e. upper end, is milled with two or more The lifting bayonet socket of L-shaped or inverted T-shaped, in order to extract impetus during crab-bolt.First the T-shaped dop of locking key blade is inserted during assembling Entering the T-slot of its lower end, two panels blocks upper jump ring after being all plugged, then conical screw initially passes through locking key blade, is then passed through set Pipe, allows the conical head upper end of conical screw and locking key blade lower end contact, puts flat shim and spring washer, then screw on nut, It is completed.
During installation, holing as requested, and expanded hole, implant crab-bolt, calibrate buried depth, tightening nuts, conical head revolves at nut Tightly cause under the active force that screw rod promotes, constantly locking key blade is pushed to the hole wall of the bellmouth expanded, until taper hole wall, Locking key blade and expansion-head fit like a glove, tightening nuts, installation, just can produce optimal tensile strength.
During dismounting, unclamp nut, tap screw rod gently, allow expansion-head sink to bottom hole, catch on sleeve upper end with L-shaped grab L-shaped or the bayonet socket of T-shaped, be lifted up, and just can be taken off sleeve pipe and locking key blade, further takes out screw rod, and dismounting completes.
Can be preferred, described in autotomy between locking key blade first and second become 180 degree of settings, its locking key blade center line Pass through central axis.
Embodiment 2
A kind of card slot type detachable reaming crab-bolt, including conical screw 1, locking key blade (such as locking key blade is three) 2, card Spring 3, sleeve pipe 4, plain washer 5, spring washer 6 and nut 7;Wherein, described locking key blade is three, it is preferable that described three Become between individual locking key blade to become respectively 120 degree be uniformly arranged can also be uneven arbitrarily arrange.Other side all with embodiment 1 Identical, it is not described in detail in this.
Embodiment 3
A kind of card slot type detachable reaming crab-bolt, including conical screw 1, locking key blade (such as locking key blade is more than three) 2, Jump ring 3, sleeve pipe 4, plain washer 5, spring washer 6 and nut 7;Wherein, described locking key blade is more than three, it is preferable that Any setting that the most uniformly setting can also be uneven is become between described more than three locking key blades.Other side all with implement Example 1 is identical, is not described in detail in this.
As previously discussed, it is only the preferable case study on implementation of the present invention, and the present invention not does any pro forma restriction. All those skilled in the art utilize technical scheme, the deformation of any equivalent of making above-mentioned embodiment, modification Or differentiation etc., in the range of all still falling within technical scheme.

Claims (6)

1. a card slot type detachable reaming crab-bolt, including conical screw (1), locking key blade (2), jump ring (3), set Pipe (4), plain washer (5), spring washer (6) and nut (7);Wherein, described conical screw is one end band Having conical head, also referred to as expansion-head, the other end to have the screw rod of a tooth, this conical screw is once-forming Entirety or one can separate assembly;Described locking key blade is the curved metal that there is T-shaped dop one end Sheet, its have outside at least two panels blade, and the T-shaped dop of locking key blade upper end have together laterally jump-ring slot, There is one spacing bracket of blade inner side;Described jump ring is a C-shaped steel wire, and it ensure that locking key blade not T-slot can be spontaneously decoupled from outside of sleeve;Sleeve pipe is the hollow circular-tube of a circle, and it is near locking key blade One end i.e. lower end, there is the T-slot that at least two panels is equal with locking key blade quantity, the shape of this T-slot and lock The T-shaped dop of key blade upper end adapts, it is ensured that the T-shaped dop of locking key blade can easily enter and also leave Certain gap, the size in this gap is big with the angle easily expanded outwardly during meeting locking key blade working In conical head tapering;And there is one cannelure in the outside of sleeve pipe, the degree of depth of this cannelure and width and lock The horizontal jump-ring slot of key blade adapts, to ensure after assembling and the horizontal jump-ring slot of locking key blade is same On horizontal plane, it is ensured that jump ring can easily block into, and not above the lateral surface of sleeve pipe;Outside T-slot Bottommost connected component have the overlap of tiny one, utilize this overlap as the spacing torr of locking key blade, anti- Only locking key blade landing inside T-slot;There are at least two L-shaped or T in the other end of sleeve pipe i.e. upper end The lifting bayonet socket of shape, as impetus during extraction crab-bolt;During assembling, first locking key blade is inserted under sleeve pipe The T-slot of end, after being all plugged, the upper jump ring of card, then initially passes through conical screw lower end locking key blade, then wears Cross sleeve pipe, allow the conical head upper end of conical screw and locking key blade lower end contact, put plain washer and spring Packing ring, then screw on nut, it is completed;
During installation, hole as requested, and described hole is expanded to bellmouth, implant crab-bolt, calibrate buried depth, twist Tight nut, conical head is under nut screws the active force causing conical screw to promote, constantly by locking key blade Push to the hole wall of the bellmouth expanded, until taper hole wall, locking key blade and conical head fit like a glove, twist Tight nut, installation, just produce optimal tensile strength;
During dismounting, unclamp nut, tap conical screw gently, allow conical head sink to bottom bellmouth, use L-shaped card Hook catches on the L-shaped of sleeve upper end or the lifting bayonet socket of inverted T-shaped, is lifted up, just can be taken off sleeve pipe and locking key Blade, further takes out conical screw, and dismounting completes.
Card slot type the most according to claim 1 detachable reaming crab-bolt, it is characterised in that: described locking key leaf The opening of sheet, close, be to utilize jump ring as the axle center of locking key blade, carry out opening and closing.
Card slot type the most according to claim 1 detachable reaming crab-bolt, it is characterised in that: described sleeve pipe and lock The connection of key blade, make use of the negative and positive of T-shaped to combine.
Card slot type the most according to claim 1 detachable reaming crab-bolt, it is characterised in that: described locking key blade Having two panels blade, become 180 degree of settings between the central point of described two panels blade, its line passes through central shaft Line.
Card slot type the most according to claim 1 detachable reaming crab-bolt, it is characterised in that: described locking key blade There are three blades, between described three blades in the random sleeve bottom T-slot of insertion unevenly.
Card slot type the most according to claim 1 detachable reaming crab-bolt, it is characterised in that: described locking key blade Having at least three blades, between described at least three blades, regular uniform ground inserts sleeve bottom T-slot In.
CN201310416601.6A 2013-09-13 2013-09-13 A kind of card slot type detachable reaming crab-bolt Active CN103807259B (en)

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CN103807259B true CN103807259B (en) 2016-08-17

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
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

Citations (5)

* Cited by examiner, † Cited by third party
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
CN1032226A (en) * 1987-09-09 1989-04-05 阿图尔-费希尔股份公司费希尔厂 Expansion anchor bolts
CN1143168A (en) * 1995-08-17 1997-02-19 顾洪昌 Assembling and disassembing expanding screw
EP1532930A1 (en) * 1998-04-21 2005-05-25 Tornier SA Suture anchor with reversible expansion
CN203189449U (en) * 2013-01-21 2013-09-11 徐宝余 Self-bearizing anchor bolt

Patent Citations (5)

* Cited by examiner, † Cited by third party
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
CN1032226A (en) * 1987-09-09 1989-04-05 阿图尔-费希尔股份公司费希尔厂 Expansion anchor bolts
CN1143168A (en) * 1995-08-17 1997-02-19 顾洪昌 Assembling and disassembing expanding screw
EP1532930A1 (en) * 1998-04-21 2005-05-25 Tornier SA Suture anchor with reversible expansion
CN203189449U (en) * 2013-01-21 2013-09-11 徐宝余 Self-bearizing anchor bolt

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