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.