CN103306547B - Anti-theft security Strain lock - Google Patents
Anti-theft security Strain lock Download PDFInfo
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- CN103306547B CN103306547B CN201310177201.4A CN201310177201A CN103306547B CN 103306547 B CN103306547 B CN 103306547B CN 201310177201 A CN201310177201 A CN 201310177201A CN 103306547 B CN103306547 B CN 103306547B
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Abstract
A kind of anti-theft security Strain lock, comprise lock housing, locking bar and dead bolt, wherein, lock housing has a pilot hole, locking bar is inserted in pilot hole, the relative pilot hole axial location of locking bar and relatively pilot hole be rotatably assorted, locking bar is provided with key acting section towards the one end in lock housing front, it is characterized in that: key acting section is arranged with a Lock cylinder cover, Lock cylinder cover and key acting section are slidably matched axial formation; The locking bar of described key acting section root is provided with first shaft shoulder, is provided with the first spring of axial action between first shaft shoulder and Lock cylinder cover; Described pilot hole inwall offers the first axial channel; The inwall of described pilot hole corresponds to described flank along its circumference and offers a circle circumference guide groove, this circumferential guide groove is axially located between key acting section two ends along key acting section, and the first axial channel and circumferential guide groove communicate.The present invention has anti-theft feature, uses more safe and reliable.
Description
Technical field
The present invention relates to lockset, the industrial Strain lock of the industries such as particularly track traffic, wind-power electricity generation, communication apparatus.The dead bolt of this lockset not only has lock function and also has tension function simultaneously, can be applicable to a body, forms and cabinet etc.
Background technology
On the vehicle or equipment of the industries such as track traffic, wind-power electricity generation, communication apparatus, the industrial lockset of a large amount of use comes lock door body or forms.Chinese patent CN102155117B discloses the patent of invention that a kind of name is called " improved revolution tensioning lock ", this patent lock comprises lock housing, lock core, turns tongue, lock core is positioned at pilot hole, lock core is provided with towards the one end in lock housing front the on-off action portion coordinated with key, lock core is provided with a sleeve towards the one end in lock housing front, and the barrel of sleeve is provided with helicla flute, has a locking bar to be inserted in sleeve, on locking bar, shape has the first bearing pin, and this first bearing pin infiltrates helicla flute and forms the first guiding cooperation; The inwall of lock housing is provided with by circumferential slot " L " shape groove that form identical with axial groove, corresponding " L " shape slot is put, on locking bar, the second bearing pin is housed, this second bearing pin infiltrates " L " shape groove and forms the second guiding cooperation, by the acting in conjunction that two kinds of guiding coordinate, rotating forward in locking process, it is fixed that first paragraph corner realizes turning-bolt lock, and second segment corner realizes turning tongue tension; Rotating backward in the process of unblanking, first paragraph corner realizes turning tongue to be loosened, and second segment corner realizes turning tongue and unlocks.Above-mentioned patent improves smoothness and the reliability of lockset motion, but but there is anti-theft security problem, the termination that key insertion lock core coordinates with key is used to get final product the Kai Heguan that rotational lock core realizes lockset, this lockset is used for open air, and the termination that lock core coordinates with key be exposed to outer visible, as long as the key that can obtain coordinating with termination can open lockset, there is potential safety hazard.So how to provide a kind of anti-theft security Strain lock just to become research topic of the present invention.
Summary of the invention
The object of the present invention is to provide a kind of safe Strain lock of tool anti-theft feature.
For achieving the above object, the technical solution used in the present invention is: a kind of anti-theft security Strain lock, comprise lock housing, locking bar and dead bolt, described lock housing has a pilot hole, locking bar is inserted in pilot hole, the relative pilot hole axial location of locking bar and relatively pilot hole be rotatably assorted, dead bolt is located at locking bar one end towards the lock housing back side;
The relative pilot hole of described dead bolt is axially made up of two sections of strokes along it, be respectively sliding stroke and rotational travel, in sliding stroke, the relative pilot hole circumference of dead bolt is located and pilot hole axial sliding fit relatively, in rotational travel, the relative pilot hole axial location of dead bolt and relatively pilot hole be rotatably assorted;
Locking bar is provided with key acting section towards the one end in lock housing front;
A Lock cylinder cover is provided with in the pilot hole in described lock housing front, the outer peripheral face of this Lock cylinder cover is convexly equipped with flank, the central authorities of Lock cylinder cover are provided with a through hole, cross sectional shape and the size of the shape of this through hole and size and described key acting section match, and are set on key acting section and are slidably matched axially being formed with key acting section; The locking bar of described key acting section root is provided with first shaft shoulder, is provided with the first spring of axial action between first shaft shoulder and Lock cylinder cover, and in the assembled condition, Lock cylinder cover is pushed to the pilot hole aperture in lock housing front by the first spring; Described pilot hole inwall axially corresponds to described flank along it and offers the first axial channel, described flank stretches in axial channel the axially directed cooperation formed along key acting section axis; The inwall of described pilot hole corresponds to described flank along its circumference and offers a circle circumference guide groove, described flank and circumferential guide groove form circumference along the circumference of pilot hole and lead and coordinate, this circumferential guide groove is axially located between key acting section two ends along key acting section, and the first axial channel and circumferential guide groove communicate.
Related content in technique scheme is explained as follows:
1, in such scheme, described " lock housing front " refers to one side lock housing being inserted key, and described " the lock housing back side " is then the one side contrary with " lock housing front ".
2, in such scheme, when changing lockset and unblanking or close lock status, need to use key, the effect end of key corresponds to key acting section and offers cavity, and is also provided with the position limiting structure of restriction key insertion depth between key and lock housing.
3, in such scheme, antitheft requirement cannot open lockset within five minutes.
Operating principle of the present invention is: when lockset of the present invention is in and closes lock status or unlocking condition, flank on Lock cylinder cover embeds in the first axial channel of pilot hole inwall, now Lock cylinder cover can only slide axially relative to lock housing and can not rotate, so locking bar and dead bolt also cannot rotate relative to lock housing, dead bolt rotate in place and namely realizes the on off state of lockset, when needing the state opened or closed changing lockset, need to use key, the effect end of key offers the cavity coordinated with key acting section, the shape size of the shape of this cavity and size and key acting section matches, and between key and lock housing, be also provided with the position limiting structure of restriction key insertion depth, key is inserted lockset, after cavity on the key coordinates with key acting section, promote key, the pressure that key overcomes spring forces Lock cylinder cover to retreat, because position limiting structure on the key limits the degree of depth of key insertion, when key is inserted into the end, the flank of Lock cylinder cover is positioned at the circumferential guide groove place of pilot hole inwall just, flank embeds in circumferential guide groove and forms with it the cooperation of circumference guiding, now rotate key, locking bar can be driven to rotate, unblanking and shutting dead bolt in process all have two sections of strokes, first paragraph is sliding stroke, be used for realizing loosening of dead bolt, namely the relative pilot hole of dead bolt and locking bar are along its circumference location that slides axially, second segment rotational travel is carried out after sliding stroke, be used for realizing the rotation of dead bolt, namely dead bolt rotates relative to pilot hole, thus realize unblanking and shutting of lockset, after key is rotated in place, extract key, Lock cylinder cover is in spring restorable elastic force Regression original position, flank on Lock cylinder cover departs from circumferential guide groove, now Lock cylinder cover and locking bar, dead bolt all can not rotate relative to pilot hole.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1, the flank owing to lock housing pilot hole inwall of the present invention corresponding to Lock cylinder cover offers the first axial channel and circumferential guide groove, when not inserting key, flank embeds in the first axial channel, limits locking bar and dead bolt rotating relative to pilot hole, makes the on off state of lockset more stable, after inserting key, promote key Lock cylinder cover is inwardly promoted, when position limiting structure on the key to coordinate with lock housing stop key to continue to promote time, flank on Lock cylinder cover arrives the circumferential guide groove place of pilot hole inwall just, now rotating key can make locking bar rotate relative to pilot hole with dead bolt, the position that circumference guide groove is arranged determines the degree of depth of cavity on the key and the degree of depth of key insertion, if the degree of depth of cavity and position limiting structure do not mate with the position of circumferential guide groove on the key, just the flank on Lock cylinder cover can not be pushed into circumferential guide groove place just, then lockset cannot be opened, this just makes the use of lockset more safe and reliable and has anti-theft feature.
2, due to the present invention in the assembled condition spring Lock cylinder cover pushed to the pilot hole aperture in lock housing front, the front of Lock cylinder cover tight concordant with the front of lock housing, can prevent dust from entering lock housing.
Accompanying drawing explanation
Accompanying drawing 1 is the three-dimensional assembling drawing of the embodiment of the present invention;
Accompanying drawing 2 is embodiment of the present invention three-dimensional exploded view;
Accompanying drawing 3 is embodiment of the present invention key sectional view;
Accompanying drawing 4 is embodiment of the present invention lock housing lid stereogram one, for showing the first axial channel and circumferential guide groove;
Accompanying drawing 5 is embodiment of the present invention lock housing lid stereogram two, for showing the first axial channel and circumferential guide groove;
Accompanying drawing 6 is embodiment of the present invention locking bar stereogram, the second axial channel in figure on visible sidewall and sidewall;
Accompanying drawing 7 is embodiment of the present invention dead bolt stereogram, and the guiding surface in figure in visible dead bolt upper guide bush is spacing with tension;
Accompanying drawing 8 is embodiment of the present invention dead bolt sectional view, the guiding surface in figure in visible dead bolt upper guide bush, strains spacing and loosens spacing;
Accompanying drawing 9 is embodiment of the present invention lock housing stereogram, visible pilot hole and the spacer pin corresponding to dead bolt setting in figure;
Accompanying drawing 10 is embodiment of the present invention dead bolt stereogram, the visible stopper slot corresponding to pilot hole upper arresting pin and arrange in figure;
Accompanying drawing 11 is embodiment of the present invention tension lock-out state sectional view;
Accompanying drawing 12 loosens lock-out state sectional view for the embodiment of the present invention;
Accompanying drawing 13 loosens released state sectional view for the embodiment of the present invention;
Accompanying drawing 14 for embodiment of the present invention key extract after loosen released state sectional view.
In above accompanying drawing: 1, lock housing; 2, locking bar; 3, dead bolt; 4, pilot hole; 5, key acting section; 6, Lock cylinder cover; 7, flank; 8, guide pad is rotated; 9, the first spring; 10, lock housing lid; 11, collar; 12, key; 13, rotary action block; 14, sidewall; 15, sealing ring; 17, guide finger; 18, cavity; 19, the first axial channel; 20, circumferential guide groove; 21, the second axial channel; 23, the shaft shoulder; 24, the second spring; 25, guide pin bushing; 26, guiding surface; 27, strain spacing; 28, loosen spacing; 29, spacer pin; 30, stopper slot.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: anti-theft security Strain lock
See accompanying drawing 1, accompanying drawing 2, , shown in accompanying drawing 11 ~ accompanying drawing 14, comprise lock housing 1, locking bar 2 and dead bolt 3, wherein, lock housing 1 has a pilot hole 4, a lock housing lid 10 is provided with in pilot hole 4, lock housing lid 10 is fixedly installed relative to pilot hole 4, the cross section of lock housing lid 10 is that polygon is to locate in circumference between this and the inwall of pilot hole 4, lock housing lid 10 passes through a collar 11 relative to pilot hole 4 in axial location, lock housing lid 4 central authorities are provided with a through hole, locking bar 2 is inserted in pilot hole 4, locking bar 2 is provided with second shaft shoulder, pilot hole 4 inwall corresponds to second shaft shoulder and be convexly equipped with rotating support block, second shaft shoulder to be located on rotating support block with this make locking bar 2 relatively pilot hole 4 axial location and relatively pilot hole 4 be rotatably assorted, sealing ring 15 is provided with between locking bar 2 and pilot hole 4 inwall, its role is to water proof and dust proof, described dead bolt 3 relatively pilot hole 4 is axially made up of two sections of strokes along it, be respectively sliding stroke and rotational travel, in sliding stroke, dead bolt 3 relatively pilot hole 4 circumference is located and pilot hole 4 axial sliding fit relatively, in rotational travel, dead bolt 3 relatively pilot hole 4 axial location and relatively pilot hole 4 be rotatably assorted, locking bar 2 is provided with key acting section 5 towards the one end in lock housing 1 front, and key acting section 5 is positioned at lock housing lid 10.
Shown in accompanying drawing 11, a Lock cylinder cover 6 is provided with in the pilot hole 4 in described lock housing 1 front, the outer peripheral face of this Lock cylinder cover 6 is convexly equipped with flank 7, the central authorities of Lock cylinder cover 6 are provided with a through hole, cross sectional shape and the size of the shape of this through hole and size and described key acting section 5 match, and are set on key acting section 5 and are slidably matched axially being formed with key acting section 5; The locking bar 2 of described key acting section 5 root is provided with first shaft shoulder 23, is provided with the first spring 9 of axial action between this first shaft shoulder 23 and Lock cylinder cover 6, and in the assembled condition, Lock cylinder cover 6 is pushed to pilot hole 4 aperture in lock housing 1 front by the first spring 9; Described pilot hole 4 inwall axially corresponds to described flank 7 along it and offers the first axial channel 19, described flank 7 stretches in the first axial channel 19 the axially directed cooperation formed along key acting section 5 axis; The inwall of described pilot hole 4 corresponds to described flank 7 along its circumference and offers a circle circumference guide groove 20, described flank 7 and circumferential guide groove 20 form circumference along the circumference of pilot hole 4 and lead and coordinate, this circumferential guide groove 20 is axially located between key acting section 5 two ends along key acting section 5, and the first axial channel 19 and circumferential guide groove 20 communicate.
Shown in accompanying drawing 6, circumference along key acting section 5 on described first shaft shoulder 23 is fixedly installed a circle sidewall 14, one end of sidewall 14 is to being located on lock housing lid 10, locking bar 2 is limited relative to the activity of pilot hole 4 in axis with this, the flank 7 sidewall 14 corresponding to described Lock cylinder cover 6 offers the second axial channel 21, flank 7 is provided with along Lock cylinder cover 6 radial convex and rotates guide pad 8, under confined state, flank 7 stretches in the second axial channel 21, rotates guide pad 8 and passes the second axial channel 21 and stretch in described first axial channel 19.
Shown in accompanying drawing 7 and accompanying drawing 8, described dead bolt 3 is led with locking bar 2 by a spirally-guided mechanism and coordinates, spirally-guided mechanism comprises the guide pin bushing 25 be located on described dead bolt 3, and this guide pin bushing 25 inwall offers guiding surface 26, and guiding surface 26 is along the oblique layout of guide pin bushing 25; Described locking bar 2 is provided with two guide fingers 17 towards radial convex on the outer wall of one end, lock housing 1 back side, this guide finger 17 forms spirally-guided with guiding surface 26 and coordinates, dead bolt 3 is released pilot hole 4 by the active force be provided with between second shaft shoulder of guide finger 17 and locking bar 2 root along the second spring 24, second spring 24 of locking bar 2 axial action; The two ends of guiding surface 26 are respectively equipped with tension spacing 27 and loosen spacing 28.
Shown in accompanying drawing 9 and accompanying drawing 10, the cross section of described guide pin bushing 25 is hexagon, and in sliding stroke, shape and the size of pilot hole 4 inner chamber match with the cross section of guide pin bushing 25, limit guide pin bushing 25 with this to rotate relative to pilot hole 4, and can only relatively slide axially by pilot hole 4; In rotational travel, the inner chamber size and shape of pilot hole 4 then allows guide pin bushing 25 to rotate within it; The rotary position limiting structure limiting dead bolt 3 rotational angle is provided with between described guide pin bushing 25 outer peripheral face and pilot hole 4 inwall, this rotary position limiting structure is made up of spacer pin 29 and stopper slot 30, wherein, spacer pin 29 is located on pilot hole 4 inwall, and stopper slot 30 corresponds to spacer pin 29 and is opened in guide pin bushing 25 outer peripheral face.
Lock cylinder cover 6 is enclosed in pilot hole 4 by described lock housing lid 10, when lockset is in and closes lock status or unlocking condition, rotation guide pad 8 on Lock cylinder cover 6 stretches in the first axial channel 19 of pilot hole 4 inwall, now Lock cylinder cover 6 can only slide axially relative to pilot hole 4 and can not rotate, so locking bar 2 and dead bolt 3 also cannot rotate relative to pilot hole 4.
When needing the state opened or closed changing lockset, need to use key 12, shown in accompanying drawing 3, the effect end of key 12 offers the cavity 18 coordinated with key acting section 5, the shape size of the shape of this cavity 18 and size and key acting section 5 matches, the effect side wall of key 12 is also convexly equipped with rotary action block 13, and between key 12 and lock housing 1, is also provided with the limited block of restriction key 12 insertion depth.
Shown in accompanying drawing 12, need lockset from when to shut State Transferring be unlocking condition, key 12 is inserted lockset, cavity 18 on key 12 coordinates rotary action block 13 to stretch into after in the second axial channel 21 of sidewall 14 with key acting section 5, promote key 12, the pressure that key 12 overcomes the first spring 9 forces Lock cylinder cover 6 to retreat, because the limited block on key 12 limits the degree of depth of key 12 insertion, when key 12 is inserted into the end, the rotation guide pad 8 of Lock cylinder cover 6 is positioned at circumferential guide groove 20 place of pilot hole 4 inwall just, rotate guide pad 8 and embed the guiding of formation circumference with it cooperation in circumferential guide groove 20, flank 7 stretches in the second axial channel 21 on sidewall 14, now rotate key 12, locking bar 2 can be driven to rotate, now, dead bolt 3 is in sliding stroke, guide finger 17 on locking bar 2 and the guiding of guiding surface 26 stroke helical in guide pin bushing 25 coordinate, shown in accompanying drawing 12, accompanying drawing 12 locks relaxation state sectional view for dead bolt 3, rotating rod lock 2, under the effect of the second spring 24, dead bolt 3 is axially loosened up along pilot hole 4 outside pilot hole 4, then dead bolt 3 enters rotational travel, shown in accompanying drawing 13, next, now because dead bolt 3 enters rotational travel, and guide finger 17 arrives and loosens spacing 28 places, the rotation of locking bar 2 drives dead bolt 3 to rotate relative to pilot hole 4, is rotated further locking bar 2, dead bolt 3 can be rotated an angle, realize the unblock of lockset, shown in accompanying drawing 14, after key 12 is rotated in place, extract key 12, Lock cylinder cover 6 is in the first spring 9 restorable elastic force Regression original position, flank 7 on Lock cylinder cover 6 departs from circumferential guide groove 20, and now Lock cylinder cover 6 all can not rotate relative to pilot hole 4 with locking bar 2, dead bolt 3.
If desired lockset is converted to pass lock status from unlocking condition, concrete principle is roughly the same with above-mentioned, also be first insert key 5, when the rotation guide pad 8 of Lock cylinder cover 6 is positioned at circumferential guide groove 20 place of pilot hole 4 inwall, rotate key 5, and drive locking bar 2 to rotate, now dead bolt 3 is in rotational travel, locking bar 2 drives dead bolt 3 to rotate, then dead bolt 3 enters sliding stroke, is rotated further locking bar 2, threaded engagement between guide finger 17 and guiding surface 26, dead bolt 3 is retracted in pilot hole 4, namely complete the conversion unblanking to close lock status.
Be described below in conjunction with above-described embodiment and the accompanying drawing change possible to the present invention:
In above-described embodiment, cross section due to key acting section 5 is circular, therefore around key acting section 5, be provided with the sidewall 14 offering the second axial channel 21, the rotary action block 13 acted on end when key 12 stretches in the second axial channel 21, locking bar 2 and dead bolt 3 could be driven to rotate when rotating key 12, and in actual applications, key acting section 5 can be triangular prism, quadrangular, pentagonal prism or clean are oval, cross, T-shaped, the cylinder of L shape etc., have the cavity 18 engaging completely with key acting section 5 and match on the key, even if do not arrange sidewall 14, the effect end of key 12 does not arrange rotary action block 13, rotating key 12 also can drive locking bar 2 and dead bolt 3 to rotate, also can be contrary, namely the effect end of key 12 is provided with triangular prism, quadrangular, the various cylinders of pentagonal prism or other cross section not rounded, and key acting section 5 has the groove engaging completely with it and match, the rotation of key acting section 5 relative to key 12 can be limited, reach the object of rotating key 12 and locking bar 2 and dead bolt 3 can be driven to rotate, when changing the cross sectional shape of key acting section 5, the shape of through holes of Lock cylinder cover 6 central authorities and size also need the cross section of change and key acting section 5 and size to match.
In above-described embodiment, a lock housing lid 10 is also provided with in pilot hole 4, lock housing lid 10 is fixedly installed relative to pilot hole 4, first axial channel 19 and circumferential guide groove 20 are opened on the inwall of lock housing lid 10, this is the restriction due to processing technology, if the first axial channel 10 and circumferential guide groove 20 also without lock housing lid 10, but directly can be opened on the inwall of pilot hole 4 by processing technology license.
In above-described embodiment, described key acting section 5 and locking bar 2 are two independently component, and in actual applications, key acting section 5 and locking bar 2 also can be formed in one.
In above-described embodiment, the flank 7 of described Lock cylinder cover 6 is provided with along Lock cylinder cover 6 radial convex and rotates guide pad 8, and in actual applications, also can not arrange and rotate guide pad 8, flank 7 is only set and also can reaches same effect, namely under confined state, flank 7 stretches in the first axial channel 19, when not using key 12 to insert, circumferential location fit is formed because flank 7 is stuck in the first axial channel 19, therefore locking bar 2 and dead bolt 3 cannot rotate relative to pilot hole 4, insert key 12, Lock cylinder cover 6 is pushed away in pilot hole 4, when key 12 is inserted into the end, flank 7 on Lock cylinder cover 6 arrives circumferential guide groove 20 place of pilot hole 4 inwall just, now rotating key 12 can drive locking bar 2 and dead bolt 3 to rotate, realization is unblanked and is shut.
In above-described embodiment, described Lock cylinder cover 6 is provided with two flanks 7, inwall corresponding to two flank 7 pilot holes 4 offers two the first axial channel 19, and two flanks are arranged symmetrically with on Lock cylinder cover 6, and in actual applications, if the central angle between two flanks 7 is 90 degree, or be provided with other forms such as three flanks, 7, four flanks 7, also can reach same effect.
In above-described embodiment, dead bolt 3 by the cross section of guide pin bushing 25 is set to hexagon realize, in actual applications, if the cross section of guide pin bushing 25 to be set to other non-circular shape, also can reach same effect relative to the sliding stroke of pilot hole 4 and rotational travel; Or, the cross section of guide pin bushing 25 is set to circle, realized two sections of formation of dead bolt 3 by bearing pin and the cooperation of " L " shape guide groove between guide pin bushing 25 and pilot hole 4 inwall, also same effect can be reached, " L " shape guide groove is communicated by axial groove and circumferential slot and forms, and when bearing pin coordinates with axial groove, namely realizes the sliding stroke of dead bolt 3, when bearing pin coordinates with circumferential slot, realize the rotational travel of dead bolt 3.
Because the flank 7 lock housing 1 pilot hole 4 inwall of the present invention corresponding to Lock cylinder cover 6 offers the first axial channel 19 and circumferential guide groove 20, when not inserting key 12, flank 7 embeds in the first axial channel 19 and forms circumferential location fit, limit locking bar 2 and dead bolt 3 rotating relative to pilot hole 4, make the on off state of lockset more stable, after inserting key 12, promote key 12 Lock cylinder cover 6 is inwardly promoted, when the position limiting structure on key 12 to coordinate with lock housing 1 stop key 12 to continue to promote time, flank 7 on Lock cylinder cover 6 arrives circumferential guide groove 20 place of pilot hole 4 inwall just, now rotating key 12 can make locking bar 2 rotate relative to pilot hole 4 with dead bolt 3, the position that circumference guide groove 20 is arranged determines the degree of depth of cavity 18 on key 12 and the degree of depth of key 12 insertion, if the degree of depth of cavity 18 and position limiting structure do not mate with the position of circumferential guide groove 20 on key 12, just the flank 7 on Lock cylinder cover 6 can not be pushed into just circumferential guide groove 20 place, then lockset cannot be opened, this just makes the use of lockset more safe and reliable and has anti-theft feature.
Lock cylinder cover 6 is pushed to pilot hole 4 aperture in lock housing 1 front by the present invention in the assembled condition the first spring 9, and the front tight concordant with the front of lock housing 1 of Lock cylinder cover 6, can prevent dust from entering lock housing 1.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (3)
1. an anti-theft security Strain lock, comprise lock housing (1), locking bar (2) and dead bolt (3), described lock housing (1) has a pilot hole (4), locking bar (2) is inserted in pilot hole (4), locking bar (2) relatively pilot hole (4) axial location and relatively pilot hole (4) be rotatably assorted, dead bolt (3) is located at locking bar (2) one end towards lock housing (1) back side; It is characterized in that:
Described dead bolt (3) relatively pilot hole (4) is axially made up of two sections of strokes along it, be respectively sliding stroke and rotational travel, in sliding stroke, dead bolt (3) relatively pilot hole (4) circumference is located and pilot hole (4) axial sliding fit relatively, in rotational travel, dead bolt (3) relatively pilot hole (4) axial location and relatively pilot hole (4) be rotatably assorted;
Locking bar (2) is provided with key acting section (5) towards the one end in lock housing (1) front;
A Lock cylinder cover (6) is provided with in the pilot hole (4) in described lock housing (1) front, the outer peripheral face of this Lock cylinder cover (6) is convexly equipped with flank (7), the central authorities of Lock cylinder cover (6) are provided with a through hole, cross sectional shape and the size of the shape of this through hole and size and described key acting section (5) match, and are set in upper the formation in axis with key acting section (5) of key acting section (5) and are slidably matched; The locking bar (2) of described key acting section (5) root is provided with first shaft shoulder (23), first spring (9) of axial action is provided with between first shaft shoulder (23) and Lock cylinder cover (6), in the assembled condition, Lock cylinder cover (6) is pushed to pilot hole (4) aperture in lock housing (1) front by the first spring (9); Described pilot hole (4) inwall axially corresponds to described flank (7) along it and offers the first axial channel (19), described flank (7) stretches in axial channel (19) and is formed along the axial axially directed cooperation of key acting section (5); The inwall of described pilot hole (4) corresponds to described flank (7) along its circumference and offers circle circumference guide groove (20), described flank (7) and circumferential guide groove (20) form circumference along the circumference of pilot hole (4) and lead and coordinate, this circumferential guide groove (20) is axially located between key acting section (5) two ends along key acting section (5), and the first axial channel (19) and circumferential guide groove (20) communicate;
Described dead bolt (3) to be led with locking bar (2) by a spirally-guided mechanism and coordinates, spirally-guided mechanism comprises the guide pin bushing (25) be located on described dead bolt (3), this guide pin bushing (25) inwall offers helical guide groove, and helical guide groove is along guide pin bushing (25) oblique layout; Described locking bar (2) is provided with guide finger (17) towards radial convex on the outer wall of lock housing (1) one end, the back side, this guide finger (17) stretches into and forms spirally-guided with helical guide groove in helical guide groove and coordinate, be provided with the second spring (24) along locking bar (2) axial action between the root of guide finger (17) and locking bar (2), dead bolt (3) is released pilot hole (4) by the active force of the second spring (24).
2. anti-theft security Strain lock according to claim 1, it is characterized in that: described locking bar (2) is convexly equipped with two guide fingers (17) towards radial symmetric on the outer wall of lock housing (1) one end, the back side, described guide pin bushing (25) inwall corresponds to two guide fingers (17) and offers two helical guide grooves, and the two ends of helical guide groove are respectively equipped with tension spacing (27) and loosen spacing (28).
3. anti-theft security Strain lock according to claim 1, it is characterized in that: between described guide pin bushing (25) outer peripheral face and pilot hole (4) inwall, be provided with the rotary position limiting structure limiting dead bolt (3) rotational angle, this rotary position limiting structure is made up of spacer pin (29) and stopper slot (30), wherein, spacer pin (29) is located on pilot hole (4) inwall, and stopper slot (30) is opened in guide pin bushing (25) outer peripheral face corresponding to spacer pin (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310177201.4A CN103306547B (en) | 2013-05-14 | 2013-05-14 | Anti-theft security Strain lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310177201.4A CN103306547B (en) | 2013-05-14 | 2013-05-14 | Anti-theft security Strain lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103306547A CN103306547A (en) | 2013-09-18 |
| CN103306547B true CN103306547B (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310177201.4A Active CN103306547B (en) | 2013-05-14 | 2013-05-14 | Anti-theft security Strain lock |
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| CN (1) | CN103306547B (en) |
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| CN106382056B (en) * | 2016-10-19 | 2018-12-18 | 丁旭荣 | A kind of lockset axial lock structure |
| CN108266055B (en) * | 2018-04-04 | 2023-12-26 | 东莞市缙优实业有限公司 | Multifunctional lockset |
| CN108843152B (en) * | 2018-06-28 | 2020-02-04 | 北京无线电测量研究所 | Quick lock for vehicle-mounted electronic equipment of crawler armored vehicle |
| CN108903316A (en) * | 2018-08-13 | 2018-11-30 | 常傲寒 | A kind of desktop adjustable desk |
| CN109944501A (en) * | 2019-04-22 | 2019-06-28 | 重庆信果工贸有限公司 | A kind of lock being opened and closed using specific purpose tool |
| CN110439172A (en) * | 2019-08-09 | 2019-11-12 | 广东玖米空间科技有限公司 | Assembled architecture ceiling suspension system and its furred ceiling attachment device |
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| CN103306547A (en) | 2013-09-18 |
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