CN2750108Y

CN2750108Y - Nut lock

Info

Publication number: CN2750108Y
Application number: CN 200420108800
Authority: CN
Inventors: 芮万柱
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-11-12
Filing date: 2004-11-12
Publication date: 2006-01-04
Anticipated expiration: 2014-11-12

Abstract

The utility model relates to a nut lock with magnetic performance encoding, which can be dismounted by magnetic force action. The utility model is characterized in that the utility model is a ratchet gear wheel body with an inner screw thread, and is covered with an external hexahedron; the left side of the external hexahedron is provided with a horizontal blind hole; a spring and a left horizontal pin are arranged in the horizontal blind hole; one end of the vertical angle surface of the left horizontal pin is inserted into a ratchet slot; the ratchet gear wheel body is driven only to be screwed but can not be unscrewed under the rotation of the external hexahedron; the right side of the external hexahedron is provided with a T-shaped horizontal blind hole; a right horizontal pin is provided with an iron ring and a magnetic encoding block; the right horizontal pin of which the front and the rear sides are provided with arc-shaped grooves is arranged in the T-shaped horizontal blind hole and is locked by a front and a rear vertical concave pins under the action of magnetic force. Only when the external hexahedron is sheathed with a key wrench and an upper key plate, by the magnetic force action of magnetic encoding blocks on the key wrench and the upper key plate, the locking of the right horizontal pin is released, one end with a vertical angle surface is inserted into the ratchet slot, the key wrench is reversely screwed and the ratchet gear wheel body is driven to reversely rotate. Thus, the nut lock can be dismounted.

Description

The nut lock

Technical field:

The utility model belongs to bolt, nut connects secondary, especially a kind of with the self-locking nut of encoding and just can unscrew by magnetic force.

Background technique:

Existing bolt, though connecting pair, nut can and have higher linking intensity with the fastening connection of coupled member, but can dismantle with general utility tool between the screw bolt and nut, coupled member is separated at an easy rate, so, have an opportunity to take advantage of for pilferage molecule and even terrorist, stay the hidden danger of great security incident, the Bolt Connection pair of the member of high voltage supply iron tower for example, the Bolt Connection of railway rail and member is secondary in case stolen molecule or terrorist pilferage or dismounting, will cause power supply iron tower collapse power outage and derailing, the especially big traffic accident of overturning brings great harm for the country and people's lives and properties.

Summary of the invention:

The purpose of this utility model provides a kind of band coding, lock by the nut that magnetic force just can be unscrewed, nut and bolt screw with coupled member is fastening connect after, the nut lock is with regard to self-locking, must just can unscrew, dismantle the nut lock with the Key jaw type spanner of special use, just can make coupled member separately, have high fastening reliability and the anti-Security of stealing, preventing dismounting.

The purpose of this utility model is achieved like this: a kind of nut lock, it is characterized in that tapped ratchet wheel body, the outer hexahedron of overcoat, the internal thread of ratchet wheel body is corresponding with the outside thread of bolt equipped, the profile of ratchet wheel body is up-narrow and down-wide, epimere is that cylindrical body, hypomere are the outer polyhedron of circular tower body, and the cylindrical periphery of epimere has the rectangle ratchet; Outer hexahedron is sleeved on the outside of ratchet wheel body, hexahedral in addition endoporus make and the profile of ratchet wheel body corresponding in polyhedron, on the surface of contact of ratchet wheel body and the sliding supporting dress of outer hexahedron, O-ring seals is installed, in order to prevent dust, moistureproof; A hexahedral outside side is opened horizontal blind hole, mounting spring and transverse bolt in this horizontal blind hole, one end of this transverse bolt is tight against on spring, the other end is made the back for the right angle face with preceding to form right tack pointed for the inclined-plane, and make the screw direction of right angle face towards screw thread, under the effect of spring, transverse bolt stretches out, the pointed end of right tack is inserted in the teeth groove of ratchet, hexahedron is when tightening direction rotates outside turning with spanner, right angle on the transverse bolt is worn moving ratchet wheel body and is tightened rotation synchronously, until tightening with the bolt that is through on the coupled member, with the fastening connection of coupled member, when adopting the outer hexahedron of general reverse the turning of hexagon, because the inclined-plane and the ratchet of the pointed end of transverse bolt right side tack offset, promote to contract in the transverse bolt, make outer hexahedron idle running and can not drive the ratchet wheel body, just realized the self-locking of nut lock having reached anti-dismounting, anti-purpose of stealing; In order in needs, to dismantle the nut lock, hexahedral outside opposite side is opened a horizontal blind hole of T shape, setting-in iron hoop in the shoulder hole of the horizontal blind hole of this T shape, in the horizontal blind hole of this T shape, comprise in the iron hoop hole, before the waist of sliding dress carrying magnetic encoding block and pin body, back both sides have the transverse bolt of arc groove, the inner termination of this transverse bolt is also made the back for the right angle face with preceding to form left tack pointed and make the right angle face unscrew direction towards what nut was locked for the inclined-plane, and can insert in the teeth groove of ratchet as required, this transverse bolt because of with the magnetic force of iron hoop in contract and rest in the horizontal blind hole of T shape, in addition, before this transverse bolt, the arc groove of back both sides, before the horizontal blind hole of T shape, back both sides have a tangent vertical blind hole of the horizontal blind hole of T shape therewith, then, again in these two vertical blind holes from top to bottom mounting spring and top insert the vertical recessed pin of magnetic code piece, the axle body stage casing of this vertical recessed pin is the recessed waist of arc, under normal conditions, these two vertical recessed pins are under the effect of spring, rest on the bottom of vertical blind hole, the cylindrical part of the epimere of vertical recessed pin is inserted in the arc groove of transverse bolt both sides, transverse bolt is locked in the horizontal blind hole of T shape and can not be overhanging; In addition, correspondence is equipped with the Key jaw type spanner of being with interior hexagonal on the hexahedron outside, the sidepiece of this Key jaw type spanner, position corresponding to the horizontal blind hole of T shape on the outer hexahedron, the magnetic code piece of the magnetic code piece same sex on setting-in and the transverse bolt, in addition, Key jaw type spanner and outside install between the plane on hexahedral hexagonal on the spoon plate, on the plane, top of the endoporus of Key jaw type spanner and on the spoon plate on the plane, offer the spring groove of concentricity line respectively, in this spring groove main spring is set, play and center, the effect of working in order, in the bottom of last spoon plate is the position of two vertical recessed pins corresponding to two vertical blind holes, equal opposite magnetic code pieces of magnetic of setting-in and the magnetic code piece on vertical recessed pin top, because magnetic is opposite, there is a natural attraction between the sexes, so two vertical recessed pins all by on carry, the epimere cylindrical body of vertical recessed pin all is pulled out the arc groove of transverse bolt, make the recessed waist section of arc of vertical recessed pin be positioned at the arc groove position of transverse bolt, and do not play the locking transverse bolt, at this moment, transverse bolt stretches out under the promotion of like pole and pushes the ratchet wheel body to, its left tack pointed end is inserted in the teeth groove of ratchet, court unscrews twisting of direction along with Key jaw type spanner, promoting the ratchet wheel body rotates synchronously, this nut lock is twisted from bolt, left Key jaw type spanner, just the nut lock can't be unscrewed and pull down, just can't with coupled member separately also just have high fastening reliability and anti-dismounting, anti-Security of stealing.

The nut lock construction that the utility model is carried is reasonable, safe and reliable, has high fastening reliability and the anti-Security of stealing, preventing dismounting.

The nut lock of the utility model being carried below in conjunction with drawings and Examples is further described.

Description of drawings:

Fig. 1 is the main cross-sectional schematic of the nut lock carried of the utility model.

Fig. 2 is that A-A analyses and observe schematic top plan view among Fig. 1.

Fig. 3 is a B-B cross-sectional schematic among Fig. 1.

Fig. 4 is the main cross-sectional schematic after part 13,

part

16,17, part 18, part 24 remove among hypothesis Fig. 1.

Wherein: 1, ratchet wheel body 2, ratchet 3, outer hexahedron 4, horizontal blind hole 5, spring 6, left side transverse bolt 7, O RunddichtringO 8, the vertical blind hole 9 in back, the vertical recessed pin 10 in back, the horizontal blind hole 11 of T type, right transverse bolt 12, iron hoop 13, right magnetic code piece 14, recurve pin magnetic code piece 15, rear spring 16, Key jaw type spanner 17, last spoon plate 18, back magnetic code piece 19, preceding magnetic code piece 20, front spring 21, preceding recessed pin magnetic code piece 22, preceding vertical recessed pin 23, preceding vertical blind hole 24, main spring

Embodiment:

From Fig. 1, Fig. 2, Fig. 3, Fig. 4 as can be seen: a kind of nut lock, it is characterized in that tapped ratchet wheel body 1, the outer hexahedron 3 of overcoat, the internal thread of ratchet wheel body 1 is corresponding with the outside thread of bolt equipped, the profile of ratchet wheel body 1 is up-narrow and down-wide, epimere is that cylindrical body, hypomere are the outer polyhedron of circular tower body, and the cylindrical periphery of epimere has rectangle ratchet 2; Outer hexahedron 3 is sleeved on the outside of ratchet wheel body 1, in addition the endoporus of hexahedron 3 make and the profile of ratchet wheel body 1 corresponding in polyhedron, on the surface of contact of ratchet wheel body 1 and outer hexahedron 3 sliding supporting dresses, O-ring seals 7 is installed, in order to prevent dust, moistureproof; Horizontal blind hole 4 is opened in the left side of hexahedron 3 outside, mounting spring 5 and left transverse bolt 6 in this horizontal blind hole 4, the left end of this left transverse bolt 6 is tight against on spring 5, right-hand member is made the back for the right angle face with preceding to form right tack pointed for the inclined-plane, and make the screw direction of right angle face towards screw thread, under the effect of spring 5, left side transverse bolt 6 stretches out, the pointed end of right tack is inserted in the teeth groove of ratchet 2, hexahedron 3 is when tightening direction rotates outside turning with spanner, right angle on the transverse bolt 6 of a left side is worn moving ratchet wheel body 1 and is tightened rotation synchronously, until tightening with the bolt that is through on the coupled member, with the fastening connection of coupled member, when adopting the outer hexahedron 3 of general reverse the turning of hexagon, because the inclined-plane and the ratchet 2 of the pointed end of left transverse bolt right side tack offset, promote to contract in the left transverse bolt 6, make outer hexahedron 3 idle running and can not drive ratchet wheel body 1, just realized the self-locking of nut lock having reached anti-dismounting, anti-purpose of stealing; In order in needs, to dismantle the nut lock, a horizontal blind hole 10 of T shape is opened on the right side of hexahedron 3 outside, setting-in iron hoop 12 in the shoulder hole of the horizontal blind hole 10 of this T shape, in the horizontal blind hole 10 of this T shape, comprise in the hole of iron hoop 12, before sliding dress carrying magnetic encoding block and the pin body waist, back both sides have the right transverse bolt 11 of arc groove, the left end head of this right transverse bolt 11 is also made the back for the right angle face with preceding to form left tack pointed and make the unscrew direction of right angle face towards screw thread for the inclined-plane, and can insert in the teeth groove of ratchet 2 as required, this right transverse bolt 11 with the magnetic force of iron hoop 12 under in contract and rest in the horizontal blind hole 10 of T shape, in addition, before this right transverse bolt 11, the arc groove of back both sides, before the horizontal blind hole 10 of T shape, back both sides have one therewith the horizontal blind hole of T shape 10 tangent before, the vertical blind hole 23 in back, 8, then, again before this, latter two vertical blind hole 23, before from top to bottom installing in 8, rear spring 20,15 and the top insert before, recurve pin magnetic code piece 21, before 14, the vertical recessed pin 22 in back, 9, before this, the vertical recessed pin 22 in back, 9 axle body stage casing is the recessed waist of arc, under normal conditions, before these two, the vertical recessed pin 22 in back, 9 preceding, rear spring 20, under 15 the effect, before resting on, the vertical blind hole 23 in back, 8 bottom, before, the vertical recessed pin 22 in back, the cylindrical part of 9 epimere insert right transverse bolt 11 before, in the arc groove of back both sides, right transverse bolt 11 is locked in the horizontal blind hole 10 of T shape and can not be overhanging; In addition, correspondence is equipped with the Key jaw type spanner 16 of being with interior hexagonal on the hexahedron 3 outside, the right side of this Key jaw type spanner 16, position corresponding to the horizontal blind hole 10 of T shape on the outer hexahedron 3, the right magnetic code piece 13 of the magnetic code piece same sex on setting-in and the right transverse bolt 11, in addition, Key jaw type spanner 16 and outside hexahedron 3 on install between the plane hexagonal on spoon plate 17, on the plane, top of the endoporus of Key jaw type spanner 16 and on spoon plate 17 on the plane, offer the spring groove of concentricity line respectively, main spring 24 is set in this spring groove, play and center, the effect of working in order, in the bottom of last spoon plate 17 corresponding to preceding, the vertical blind hole 23 in back, 8 promptly corresponding to preceding, the vertical recessed pin 22 in back, 9 position, equal setting-in and vertical recessed pin 22, before 9 tops, recurve pin magnetic code piece 21,14 magnetic opposite before, back magnetic code piece 19,18, because magnetic is opposite, there is a natural attraction between the sexes, before the institute, the vertical recessed pin 22 in back, 9 all by on carry, before, the vertical recessed pin 22 in back, 9 epimere cylindrical body all is pulled out the arc groove of right transverse bolt 11, before making, the vertical recessed pin 22 in back, the recessed waist section of 9 arc is positioned at the arc groove position of right transverse bolt 11, and do not play the right transverse bolt of locking, at this moment, right transverse bolt stretches out under the promotion of like pole and pushes ratchet wheel body 1 to, its left tack pointed end is inserted in the teeth groove of

ratchet

2,16 courts unscrew twisting of direction along with Key jaw type spanner, promote ratchet wheel body 1 rotation synchronously, this nut lock is twisted from bolt, left Key jaw type spanner 16, just the nut lock can't be unscrewed and pull down, just can't with coupled member separately just have high fastening reliability and anti-dismounting, anti-Security of stealing.

Claims

1, a kind of nut lock is characterized in that:

A, tapped ratchet wheel body (1), the outer hexahedron (3) of overcoat, the profile of ratchet wheel body (1) is up-narrow and down-wide, and epimere is that cylindrical body, hypomere are the outer polyhedron of circular tower body, and the cylindrical periphery of epimere has rectangle ratchet (2);

The endoporus of b, outer hexahedron (3) is made and the corresponding interior polyhedron of the profile of ratchet wheel body (1), horizontal blind hole (4) is opened in the left side of hexahedron (3) outside, mounting spring (5) and left transverse bolt (6) in this horizontal blind hole (4), the left end of this left transverse bolt (6) is tight against on spring (5), right-hand member is made the back for the right angle face with preceding to form right tack pointed for the inclined-plane, in the teeth groove of the pointed end insertion ratchet of this right side tack (2);

C, a horizontal blind hole of T shape (10) is opened on the right side of hexahedron (3) outside, setting-in iron hoop (12) in the shoulder hole of the horizontal blind hole of this T shape (10), the right transverse bolt (11) of sliding dress carrying magnetic encoding block in the horizontal blind hole of this T shape (10), before the pin body waist of this right transverse bolt (11), back both sides have arc groove, the left end head of right transverse bolt (11) is also made the back for the right angle face with preceding to form left tack pointed for the inclined-plane, before right transverse bolt (11), the arc groove of back both sides, before the horizontal blind hole of T shape (10), back both sides have the horizontal blind hole of T shape (10) therewith tangent before, the vertical blind hole (23) in back, (8), before this, the vertical blind hole (23) in back, (8) before from top to bottom installing in, rear spring (20), (15) and the top insert before, recurve pin magnetic code piece (21), (14) before, back vertical recessed pin (22), (9), before this, back vertical recessed pin (22), (9) axle body stage casing is the recessed waist of arc;

D, hexahedron (3) is gone up the Key jaw type spanner (16) of hexagonal in the equipped band outside, the right side of this Key jaw type spanner (16), and corresponding to the position of the horizontal blind hole of T shape (10), the right magnetic code piece (13) of the magnetic code piece same sex on setting-in and the right transverse bolt (11);

E, Key jaw type spanner (16) and outside hexagonal spoon plate (17) of going up is installed between the last plane of hexahedron (3), on the plane, top of the endoporus of Key jaw type spanner (16) and on the last plane of last spoon plate (17), offer the spring groove of concentricity line respectively, main spring (24) is set in this spring groove;

F, in the bottom of last spoon plate (17), corresponding to forward and backward vertical blind hole (23), (8), promptly corresponding to the position of forward and backward vertical recessed pin 22,9, the equal forward and backward magnetic code piece of setting-in (19), (18), the magnetic of this front and back magnetic code piece (19), (18) is opposite with the magnetic of the forward and backward recessed pin magnetic code piece (21) on forward and backward vertical recessed pin (22), (9) top, (14);

G, ratchet wheel body (1) and outside the O RunddichtringO is installed on the surface of contact of the supporting dress of cunning of hexahedron (3).