CN108060835B - Anti-damage precision mechanical double-lock-cylinder safety anti-theft lock - Google Patents
Anti-damage precision mechanical double-lock-cylinder safety anti-theft lock Download PDFInfo
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- CN108060835B CN108060835B CN201711321185.6A CN201711321185A CN108060835B CN 108060835 B CN108060835 B CN 108060835B CN 201711321185 A CN201711321185 A CN 201711321185A CN 108060835 B CN108060835 B CN 108060835B
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
- E05B27/0057—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance
- E05B27/0071—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance by means preventing opening by using the bump-technique
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
- E05B17/2007—Securing, deadlocking or "dogging" the bolt in the fastening position
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
- E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying
- E05B17/2092—Means responsive to tampering or attack providing additional locking
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
- E05B27/0003—Details
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Abstract
The invention discloses a damage-proof precision mechanical double-lock-cylinder safety anti-theft lock, wherein when a key is not inserted, a rotor cannot rotate under the limiting action of a positioning ball; when a key is inserted into the outer lock cylinder, the key drives the outer rotating block to move inwards after being inserted, the outer combining structure between the outer rotating block and the rotor is combined, the rotor rotating core is driven to move inwards by the outer rotating block moving inwards, the positioning ball is separated from the limiting groove, and the rotor can be driven to rotate to unlock; when a key is inserted into the inner lock cylinder, the positioning ball is positioned between the radial groove and the limiting groove, and the rotor can be directly rotated by the key to unlock; when the lock body is broken from the tearing groove due to the action of external force, the outer rotating block moves outwards and is separated from the small-diameter section under the action of the outer reset spring, the steel ball falls to the bottom of the radial vertical groove and blocks the small-diameter section, and the rotor cannot rotate due to the limiting effect of the positioning ball on the rotor, namely, cannot be unlocked, so that the technical purpose of locking is achieved.
Description
Technical Field
The invention belongs to the technical field of locks, and particularly relates to a damage-proof precision mechanical double-lock-cylinder safety anti-theft lock.
Background
At present, a spring lock used in families generally comprises a lock shell and two lock cylinders which are transversely arranged, and the two lock cylinders are connected with a lock head shifting fork through an inner assembly. Most double-lock-cylinder locks in the existing market all have the problem of lower security, and in use, the existing standard anti-damage precision mechanical double-lock-cylinder security anti-theft locks are easy to open under the condition of using special tools, do not have higher protection function, have relatively low security, have certain potential safety hazard, and easily cause some unnecessary losses or accidents.
The Chinese patent application with publication number CN105133940A discloses an anti-damage precision mechanical double-lock-cylinder safety anti-theft lock, which comprises a lock body, a lock cylinder which can be installed in the lock body and a lock head shifting fork which is used for realizing the opening and closing of a lock head, the lock core is composed of an outer lock core and an inner lock core, one end of the lock head shifting fork is matched and installed with an inner lock core rotating head on the inner lock core, the other end of the lock head shifting fork is matched and installed with an outer lock core rotating head on the outer lock core, the lock body close to the outer lock cylinder is provided with a breaking groove, the inner component close to the inner lock cylinder is provided with a positioning hole, the lock body is provided with a marble hole matched with the positioning hole, a positioning ball is arranged in the marble hole, the lock body is characterized in that the positioning balls are fixed in the marble holes through the positioning ball upper balls, the spring and the bolt, marble holes used for installing the marble balls and the marble spring are formed in two sides of the lower end of the lock body respectively, and the bolt used for fastening the marble balls and the marble spring is installed at the port part of the marble holes.
Although the anti-damage precise mechanical double-lock-cylinder safety anti-theft lock can lock the inner lock cylinder and the inner assembly after the tear-off groove is torn off by external force, the anti-damage precise mechanical double-lock-cylinder safety anti-theft lock still has the following defects: 1) after a key is inserted into the outer lock cylinder rotating head, the anti-damage precision mechanical double-lock-cylinder safety anti-theft lock can drive the lock head shifting fork to rotate through the outer lock cylinder rotating head, and further can open the lock, so that the problem of insufficient safety exists; 2) when the breaking groove is broken by external force, the positioning bead can not be ensured to enter the positioning hole, namely, the problem of insufficient reliability exists.
Disclosure of Invention
In view of this, the invention aims to provide an anti-damage precision mechanical double-lock-cylinder safety anti-theft lock, which can effectively improve the safety protection performance and has better reliability.
In order to achieve the purpose, the invention provides the following technical scheme:
a breakage-proof precision mechanical double-lock-cylinder safety anti-theft lock comprises a lock body, wherein an outer lock cylinder hole and an inner lock cylinder hole which are coaxial are respectively arranged on the outer side and the inner side of the lock body, an outer lock cylinder is arranged in the outer lock cylinder hole, and an inner lock cylinder is arranged in the inner lock cylinder hole; a lock head shifting fork is arranged between the outer lock cylinder and the inner lock cylinder;
the lock head shifting fork is internally sleeved with a rotor, a central through hole is formed in the rotor, and a rotor rotating core is arranged in the central through hole; the central through hole comprises a small-diameter section positioned on the side of the outer lock cylinder and a large-diameter section close to the side of the inner lock cylinder, and the inner diameter of the large-diameter section is larger than that of the small-diameter section; the rotor rotating core comprises an outer section matched with the small-diameter section and an inner section matched with the large-diameter section, the outer diameter of the inner section is larger than the inner diameter of the small-diameter section, and the length of the outer section is smaller than that of the small-diameter section;
an outer rotating block is arranged between the outer lock cylinder and the rotor, a pushing pin matched with the small-diameter section is arranged on the outer rotating block, an outer reset spring used for driving the outer rotating block to move towards the outer lock cylinder is sleeved on the pushing pin, and an outer combination structure which is combined with the rotor when the outer rotating block moves towards the inner side and drives the rotor and the outer rotating block to synchronously rotate is arranged between the outer rotating block and the rotor; an inner rotating block is arranged between the inner lock cylinder and the rotor, and an inner reset spring for driving the rotor rotating core to move towards the side where the outer lock cylinder is located is arranged between the inner rotating block and the rotor rotating core; the sum of the lengths of the pushing pin and the outer side section is greater than the length of the small diameter section, and the pushing pin is in contact fit with the outer side section;
an unlocking mechanism is arranged between the inner side section and the rotor; the unlocking mechanism comprises a radial groove arranged in the rotor, a limiting groove is correspondingly arranged in the inner lock cylinder and corresponds to the radial groove, a positioning ball is arranged between the radial groove and the limiting groove, an unlocking spring used for driving the positioning ball to move towards the radial inward direction of the rotor rotating core is sleeved on the positioning ball, a abdicating groove used for abdicating the positioning ball is arranged on the outer peripheral wall of the rotor rotating core, and the positioning ball is separated from the limiting groove after the positioning ball enters the abdicating groove;
a breaking groove is further formed in the lock body and corresponds to the outer rotating block, a radial vertical groove communicated with the small-diameter section is formed in the rotor, and the minimum distance between the radial vertical groove and the large-diameter section is greater than or equal to the length of the outer side section; and steel balls for plugging the small-diameter section when falling into the bottom of the radial vertical groove are arranged in the radial vertical groove.
Further, radial slot and spacing groove all with the inboard section corresponds the setting, the groove of stepping down sets up on the periphery wall of the inboard section of rotor rotating core.
Furthermore, an outer limiting structure used for limiting the outer rotating block is arranged in the outer lock cylinder; an inner limiting structure used for limiting the inner rotating block is arranged in the inner lock cylinder.
Furthermore, an outer clamping groove is formed in the outer peripheral wall of the outer lock cylinder and corresponds to the tear-off groove, and an outer clamping ring used for axial limiting of the outer lock cylinder is arranged in the outer clamping groove; the outer peripheral wall of the inner lock cylinder is provided with an inner clamping groove located between the inner lock cylinder hole and the lock head shifting fork, and an inner clamping ring used for axial limiting of the inner lock cylinder is arranged in the inner clamping groove.
Furthermore, a rotor washer sleeved on the rotor is arranged between the lock head shifting fork and the outer lock cylinder hole.
Furthermore, an outer marble hole located in the radial direction of the outer lock cylinder hole is arranged between the outer side of the lock body and the outer lock cylinder in parallel, an outer marble component extending into the outer lock cylinder is arranged in the outer marble hole, an outer set screw is arranged at the orifice of the outer marble hole, and an outer marble spring is arranged between the outer marble component and the outer set screw.
Furthermore, the number of the outer marble holes is at least 4, which are parallel to each other, and along the direction from outside to inside, the outer marble component arranged in the third marble hole comprises a lower ball I and an anti-prying upper ball I, and the anti-prying upper ball I is positioned between the lower ball I and the corresponding outer marble spring; the outer marble component arranged in the fourth outer marble hole comprises a lower ball II and an anti-prying upper ball II, and the anti-prying upper ball II is positioned between the lower ball II and the corresponding outer marble spring; the other outer marble components comprise a lower ball III and an I-shaped ball, and the I-shaped ball is positioned between the lower ball III and the corresponding outer marble spring.
Furthermore, a first anti-drilling hole parallel to the outer spring hole is formed in the outer lock cylinder, and a short anti-drilling nail is arranged in the first anti-drilling hole; a second anti-drilling hole parallel to the outer bullet hole is formed in the outer side of the lock body, and a long anti-drilling nail is arranged in the second anti-drilling hole; be equipped with in the lock body and be located tear the third drilling of inslot side, be equipped with in the third drilling and prevent boring the nail.
Furthermore, the short anti-drilling nails are arranged into two parts and are symmetrically arranged relative to the plane where the axes of all the outer bullet holes are located; the two long anti-drilling nails are symmetrically arranged relative to the plane where the axes of all the outer bullet holes are located.
Further, an inner pin tumbler hole which is positioned in the radial direction of the inner lock cylinder hole is arranged between the inner side of the lock body and the inner lock cylinder in parallel, an inner pin tumbler assembly which extends into the inner lock cylinder is arranged in the inner pin tumbler hole, an inner set screw is arranged at the orifice of the inner pin tumbler hole, and an inner pin tumbler spring is arranged between the inner pin tumbler assembly and the inner set screw; the inner marble component comprises a lower ball VI and a flat-head ball, and the flat-head ball is positioned between the lower ball VI and the corresponding inner marble spring.
The invention has the beneficial effects that:
the invention discloses a damage-proof precision mechanical double-lock-cylinder safety anti-theft lock, which has the following principle:
when a key is not inserted, the rotor rotating core and the outer rotating block are respectively positioned at the outer side of the outer lock core under the action of the inner return spring and the outer return spring, the positioning ball is positioned between the radial groove and the limiting groove, and the rotor cannot rotate under the limiting action of the positioning ball;
when a key is inserted into the outer lock cylinder, the rotor cannot be directly rotated to unlock, namely, the key is inserted and then the outer rotating block needs to be driven to move inwards, so that the outer combination structure between the outer rotating block and the rotor is combined, the rotor rotating cylinder is driven to move inwards by the outer rotating block moving inwards until the positioning ball enters the abdicating groove under the action of the unlocking spring, and at the moment, the positioning ball is separated from the limiting groove and can be driven by the key to rotate to unlock;
when a key is inserted into the inner lock cylinder, the positioning ball is positioned between the radial groove and the limiting groove, namely, the rotor can synchronously rotate with the inner lock cylinder, the key can be directly rotated to drive the inner lock cylinder to rotate, and then the rotor is rotated to unlock the lock;
when the lock body is broken from the tearing groove under the action of external force, the outer rotating block moves outwards and is separated from the small-diameter section under the action of the outer reset spring, the steel ball falls to the bottom of the radial vertical groove and blocks the small-diameter section, and the rotor cannot rotate, namely cannot be unlocked due to the limiting effect of the positioning ball on the rotor, so that the technical purpose of locking is achieved;
in conclusion, the anti-damage precision mechanical double-lock-cylinder safety anti-theft lock disclosed by the invention can effectively improve the safety protection performance by adopting the unlocking mechanism, and has better reliability.
Drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
FIG. 1 is a schematic structural diagram of an embodiment of the anti-tamper precision mechanical double-cylinder security anti-theft lock of the present invention;
FIG. 2 is a schematic structural view of the outer cylinder with a key inserted therein and an unlocking mechanism unlocked;
FIG. 3 is a schematic view of the structure of the tear-off groove after breaking;
FIG. 4 is a schematic structural diagram of an external lock cylinder;
FIG. 5 is a cross-sectional view A-A of FIG. 4;
FIG. 6 is a bottom view of FIG. 1;
FIG. 7 is a cross-sectional view B-B of FIG. 6;
FIG. 8 is a cross-sectional view C-C of FIG. 6;
FIG. 9 is a schematic view of a rotor structure;
FIG. 10 is a schematic view of a rotor core;
fig. 11 is an exploded view of the anti-damage precision mechanical double-cylinder security anti-theft lock of the embodiment.
Description of reference numerals: 1-a lock body; 2-an external lock cylinder; 3-an internal lock cylinder; 4-a lock head shifting fork; 5-a rotor; 6-a central through hole; 6 a-small diameter section; 6 b-a large-diameter section; 7-rotor core 7; 7 a-an outer section; 7 b-inner section; 8-an external turning block; 9-pushing the pin; 10-an external return spring; 11-a coupling pin; 12-an inner turning block; 13-an internal return spring; 14-a radial slot; 15-a limiting groove; 16-a positioning bead; 17-an unlocking spring; 18-a relief groove; 19-tearing off the groove; 20-radial vertical slots; 21-steel balls; 22-external card slot; 23-an outer collar; 24-an inner collar; 25-rotor washer; 26-outer bullet holes; 27-external set screw; 28-outer spring springs; 29-lower bead I; 30-pick-proof beads I; 31-lower bead II; 32-bead II; 33-lower bead III; 34-I-shaped beads; 35-first anti-drilling; 36-short anti-drill nail; 37-second anti-drilling; 38-long anti-drill nail; 39-third prevention drilling; 40-drilling prevention of nails; 41-inner bullet hole; 42-internal set screw; 43-inner spring springs; 44-bead VI down; 45-truncated beads.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
Fig. 1 is a schematic structural diagram of an embodiment of the anti-damage precision mechanical double-cylinder security anti-theft lock of the present invention. The anti-damage precise mechanical double-lock-cylinder safety anti-theft lock comprises a lock body 1, wherein the outer side and the inner side of the lock body 1 are respectively provided with an outer lock cylinder hole and an inner lock cylinder hole which are coaxial, an outer lock cylinder 2 is arranged in the outer lock cylinder hole, and an inner lock cylinder 3 is arranged in the inner lock cylinder hole; a lock head shifting fork 4 is arranged between the outer lock core 2 and the inner lock core 3.
A rotor 5 is sleeved in the lock head shifting fork 4, a central through hole 6 is arranged in the rotor 5, and a rotor rotating core 7 is arranged in the central through hole 6; the central through hole comprises a small-diameter section positioned on the side of the outer lock cylinder 2 and a large-diameter section 6b close to the side of the inner lock cylinder 3, and the inner diameter of the large-diameter section 6b is larger than that of the small-diameter section 6 a; the rotor rotating core 7 comprises an outer section 7a matched with the small-diameter section 6a and an inner section 7b matched with the large-diameter section 6b, the outer diameter of the inner section 7b is larger than the inner diameter of the small-diameter section 6a, and the length of the outer section 7a is smaller than that of the small-diameter section 6 a.
An outer rotating block 8 is arranged between the outer lock cylinder 2 and the rotor 5, a pushing pin 9 matched with the small-diameter section 6a is arranged on the outer rotating block 8, an outer return spring 10 used for driving the outer rotating block 8 to move towards the outer lock cylinder 2 is sleeved on the pushing pin 9, and an outer combination structure which is combined with the rotor 5 when the outer rotating block 8 moves towards the inner side and drives the rotor 5 and the outer rotating block 8 to synchronously rotate is arranged between the outer rotating block 8 and the rotor 5. The outer coupling structure of the present embodiment includes a coupling pin 11 provided on the outer rotating block 8 and a coupling hole provided on the rotor 5 to be fitted with the coupling pin 11. An inner rotating block 12 is arranged between the inner lock cylinder 3 and the rotor 4, and an inner return spring 13 for driving the rotor rotating core 7 to move towards the side of the outer lock cylinder 2 is arranged between the inner rotating block 12 and the rotor rotating core 7. The sum of the lengths of the pushing pin 9 and the outer section 7a is larger than the length of the small-diameter section 6a, and the pushing pin 9 is in contact fit with the outer section 7 a. An outer limiting structure for limiting an outer rotating block 8 is arranged in the outer lock cylinder 2; an inner limiting structure for limiting the inner rotating block 12 is arranged in the inner lock cylinder 3 and used for controlling the maximum distance between the outer lock cylinder 2 and the inner lock cylinder 3 relative to the rotor 5.
An unlocking mechanism is arranged between the inner section 7b and the rotor 5. The release mechanism of this embodiment is including setting up radial groove 14 in rotor 5, correspond with radial groove 14 in the interior lock core 3 and be equipped with spacing groove 15, be equipped with location pearl 16 between radial groove 14 and the spacing groove 15, the suit is equipped with the unblock spring 17 that is used for driving its radial inward direction removal towards rotor rotary core 7 on the location pearl 16, and be equipped with the groove 18 of stepping down that is used for stepping down location pearl 16 on the periphery wall of rotor rotary core 7, and after location pearl 16 got into the groove 18 of stepping down, location pearl 16 broke away from with spacing groove 15. The radial groove 14 and the limiting groove 15 of the embodiment are both arranged corresponding to the inner section 7b, and the abdicating groove 18 is arranged on the peripheral wall of the inner section 7b of the rotor rotating core 7.
A breaking groove 19 is also arranged in the lock body 1 corresponding to the outer rotating block 8, a radial vertical groove 20 communicated with the small-diameter section 6a is arranged in the rotor 5, and the minimum distance between the radial vertical groove 20 and the large-diameter section 6b is more than or equal to the length of the outer section 7 a; the radial vertical groove 20 is internally provided with a steel ball 21 for plugging the small-diameter section 6a when the steel ball falls into the bottom of the radial vertical groove 20.
Further, an outer clamping groove 22 is formed in the outer peripheral wall of the outer lock cylinder 2 and corresponds to the breaking groove 19, and an outer clamping ring 23 used for axial limiting of the outer lock cylinder 2 is arranged in the outer clamping groove 22; the periphery wall of the inner lock cylinder 3 is provided with an inner clamping groove between the inner lock cylinder hole and the lock head shifting fork 4, and an inner clamping ring 24 for axially limiting the inner lock cylinder 3 is arranged in the inner clamping groove. A rotor washer 25 sleeved on the rotor 5 is arranged between the lock head shifting fork 4 and the outer lock cylinder hole.
Further, an outer pin hole 26 located in the radial direction of the outer pin hole is arranged between the outer side of the lock body 1 and the outer lock cylinder 2 in parallel, an outer pin assembly extending into the outer lock cylinder 2 is arranged in the outer pin hole 26, an outer set screw 27 is arranged at the orifice of the outer pin hole 26, and an outer pin spring 28 is arranged between the outer pin assembly and the outer set screw 26. The outer pin holes 26 are arranged in parallel to form at least 4, and along the direction from outside to inside, the outer pin assembly arranged in the third pin hole 26 comprises a lower ball I29 and an anti-prying upper ball I30, and the anti-prying upper ball I30 is positioned between the lower ball I29 and the corresponding outer pin spring 28. The outer ball assembly mounted in the fourth outer ball opening 26 includes a lower ball II31 and an upper pick-resistant ball II32, the upper pick-resistant ball II32 being located between the lower ball II31 and the corresponding outer ball spring 28. Other outer tumbler assemblies include a lower bead III33 and an i-bead 34, with the i-bead 34 being located between the lower bead III33 and the corresponding outer tumbler spring 28. The outer pin holes 26 of the present embodiment are arranged in parallel in 6 numbers.
Further, a first anti-drilling hole 35 parallel to the outer ball hole 26 is formed in the outer lock cylinder 2, and a short anti-drilling nail 36 is arranged in the first anti-drilling hole 35. The short anti-drilling nails 36 of the present embodiment are arranged in two and are symmetrically arranged with respect to the plane where the axes of all the outer pin holes 26 are located, and the two short anti-drilling nails 36 are arranged at both ends of the outer side of the first outer pin hole 26. A second anti-drilling hole 37 parallel to the outer bullet hole 26 is formed in the outer side of the lock body 1, and a long anti-drilling nail 38 is arranged in the second anti-drilling hole; the long anti-drill pins 38 of this embodiment are provided in two and are arranged symmetrically with respect to the plane in which the axes of all the outer pin holes 26 are located, and the two long anti-drill pins 38 are provided on both sides between the first and second outer pin holes 26. In the lock body 1 of the present embodiment, a third drilling hole 39 is formed inside the tear-off groove 19, and a nail 40 is formed in the third drilling hole 39.
Further, an inner ball hole 41 which is positioned in the radial direction of the inner lock cylinder hole is arranged between the inner side of the lock body 1 and the inner lock cylinder 3 in parallel, an inner ball assembly which extends into the inner lock cylinder 3 is arranged in the inner ball hole 41, an inner set screw 42 is arranged at the orifice of the inner ball hole 41, and an inner ball spring 43 is arranged between the inner ball assembly and the inner set screw 42; the inner ball assembly of this embodiment includes a lower ball VI44 and a flat head ball 45, the flat head ball 45 being located between the lower ball VI44 and the corresponding inner ball spring 43. In the present embodiment, 6 inner pin holes 41 are provided in parallel.
The anti-damage precision mechanical double-lock-cylinder safety anti-theft lock of the embodiment has the following principle: when a key is not inserted, the rotor rotating core and the outer rotating block are respectively positioned at the outer side of the outer lock core under the action of the inner return spring and the outer return spring, the positioning ball is positioned between the radial groove and the limiting groove, and the rotor cannot rotate under the limiting action of the positioning ball; when a key is inserted into the outer lock cylinder, the rotor cannot be directly rotated to unlock, namely, the key is inserted and then the outer rotating block needs to be driven to move inwards, so that the outer combination structure between the outer rotating block and the rotor is combined, the rotor rotating cylinder is driven to move inwards by the outer rotating block moving inwards until the positioning ball enters the abdicating groove under the action of the unlocking spring, and at the moment, the positioning ball is separated from the limiting groove and can be driven by the key to rotate to unlock; when a key is inserted into the inner lock cylinder, the positioning ball is positioned between the radial groove and the limiting groove, namely, the rotor can synchronously rotate with the inner lock cylinder, the key can be directly rotated to drive the inner lock cylinder to rotate, and then the rotor is rotated to unlock the lock; when the lock body is broken from the tearing groove under the action of external force, the outer rotating block moves outwards and is separated from the small-diameter section under the action of the outer reset spring, the steel ball falls to the bottom of the radial vertical groove and blocks the small-diameter section, and the rotor cannot rotate, namely cannot be unlocked due to the limiting effect of the positioning ball on the rotor, so that the technical purpose of locking is achieved; to sum up, the anti-damage precision mechanical double-lock-cylinder safety anti-theft lock of the embodiment can effectively improve the safety protection performance by adopting the unlocking mechanism, and has better reliability.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. A breakage-proof precision mechanical double-lock-cylinder safety anti-theft lock comprises a lock body, wherein an outer lock cylinder hole and an inner lock cylinder hole which are coaxial are respectively arranged on the outer side and the inner side of the lock body, an outer lock cylinder is arranged in the outer lock cylinder hole, and an inner lock cylinder is arranged in the inner lock cylinder hole; a lock head shifting fork is arranged between the outer lock cylinder and the inner lock cylinder; the method is characterized in that:
the lock head shifting fork is internally sleeved with a rotor, a central through hole is formed in the rotor, and a rotor rotating core is arranged in the central through hole; the central through hole comprises a small-diameter section positioned on the side of the outer lock cylinder and a large-diameter section close to the side of the inner lock cylinder, and the inner diameter of the large-diameter section is larger than that of the small-diameter section; the rotor rotating core comprises an outer section matched with the small-diameter section and an inner section matched with the large-diameter section, the outer diameter of the inner section is larger than the inner diameter of the small-diameter section, and the length of the outer section is smaller than that of the small-diameter section;
an outer rotating block is arranged between the outer lock cylinder and the rotor, a pushing pin matched with the small-diameter section is arranged on the outer rotating block, an outer reset spring used for driving the outer rotating block to move towards the outer lock cylinder is sleeved on the pushing pin, and an outer combination structure which is combined with the rotor when the outer rotating block moves towards the inner side and drives the rotor and the outer rotating block to synchronously rotate is arranged between the outer rotating block and the rotor; an inner rotating block is arranged between the inner lock cylinder and the rotor, and an inner reset spring for driving the rotor rotating core to move towards the side where the outer lock cylinder is located is arranged between the inner rotating block and the rotor rotating core; the sum of the lengths of the pushing pin and the outer side section is greater than the length of the small diameter section, and the pushing pin is in contact fit with the outer side section;
an unlocking mechanism is arranged between the inner side section and the rotor; the unlocking mechanism comprises a radial groove arranged in the rotor, a limiting groove is correspondingly arranged in the inner lock cylinder and corresponds to the radial groove, a positioning ball is arranged between the radial groove and the limiting groove, an unlocking spring used for driving the positioning ball to move towards the radial inward direction of the rotor rotating core is sleeved on the positioning ball, a abdicating groove used for abdicating the positioning ball is arranged on the outer peripheral wall of the rotor rotating core, and the positioning ball is separated from the limiting groove after the positioning ball enters the abdicating groove;
a breaking groove is further formed in the lock body and corresponds to the outer rotating block, a radial vertical groove communicated with the small-diameter section is formed in the rotor, and the minimum distance between the radial vertical groove and the large-diameter section is greater than or equal to the length of the outer side section; and steel balls for plugging the small-diameter section when falling into the bottom of the radial vertical groove are arranged in the radial vertical groove.
2. The tamper-resistant precision mechanical double-cylinder security anti-theft lock according to claim 1, characterized in that: radial groove and spacing groove all with the interior section corresponds the setting, the groove of stepping down sets up on the periphery wall of the interior section of rotor rotating core.
3. The tamper-resistant precision mechanical double-cylinder security anti-theft lock according to claim 1, characterized in that: an outer limiting structure used for limiting the outer rotating block is arranged in the outer lock cylinder; an inner limiting structure used for limiting the inner rotating block is arranged in the inner lock cylinder.
4. The tamper-resistant precision mechanical double-cylinder security anti-theft lock according to claim 1, characterized in that: an outer clamping groove is formed in the outer peripheral wall of the outer lock cylinder and corresponds to the tear-off groove, and an outer clamping ring used for axial limiting of the outer lock cylinder is arranged in the outer clamping groove; the outer peripheral wall of the inner lock cylinder is provided with an inner clamping groove located between the inner lock cylinder hole and the lock head shifting fork, and an inner clamping ring used for axial limiting of the inner lock cylinder is arranged in the inner clamping groove.
5. The tamper-resistant precision mechanical double-cylinder security anti-theft lock according to claim 1, characterized in that: and a rotor gasket sleeved on the rotor is arranged between the lock head shifting fork and the outer lock cylinder hole.
6. The tamper-resistant precision mechanical double-cylinder security anti-theft lock according to any one of claims 1 to 5, characterized in that: an outer marble hole which is positioned in the radial direction of the outer lock cylinder hole is arranged between the outer side of the lock body and the outer lock cylinder in parallel, an outer marble component which extends into the outer lock cylinder is arranged in the outer marble hole, an outer set screw is arranged at the orifice of the outer marble hole, and an outer marble spring is arranged between the outer marble component and the outer set screw.
7. The tamper-resistant precision mechanical double-cylinder security anti-theft lock according to claim 6, characterized in that: the number of the outer marble holes is at least 4, the outer marble components are arranged in the third marble hole in parallel, and the outer marble components comprise lower balls I and prying-resistant upper balls I along the direction from outside to inside, and the prying-resistant upper balls I are positioned between the lower balls I and the corresponding outer marble springs; the outer marble component arranged in the fourth outer marble hole comprises a lower ball II and an anti-prying upper ball II, and the anti-prying upper ball II is positioned between the lower ball II and the corresponding outer marble spring; the other outer marble components comprise a lower ball III and an I-shaped ball, and the I-shaped ball is positioned between the lower ball III and the corresponding outer marble spring.
8. The tamper-resistant precision mechanical double-cylinder security anti-theft lock according to claim 7, characterized in that: a first anti-drilling hole parallel to the outer spring hole is formed in the outer lock cylinder, and a short anti-drilling nail is arranged in the first anti-drilling hole; a second anti-drilling hole parallel to the outer bullet hole is formed in the outer side of the lock body, and a long anti-drilling nail is arranged in the second anti-drilling hole; be equipped with in the lock body and be located tear the third drilling of inslot side, be equipped with in the third drilling and prevent boring the nail.
9. The tamper-resistant precision mechanical double-cylinder security anti-theft lock according to claim 8, characterized in that: the short anti-drilling nails are arranged in two and are symmetrically arranged relative to the plane where the axes of all the outer bullet holes are located; the two long anti-drilling nails are symmetrically arranged relative to the plane where the axes of all the outer bullet holes are located.
10. The tamper-resistant precision mechanical double-cylinder security anti-theft lock according to claim 6, characterized in that: an inner marble hole which is positioned in the radial direction of the inner lock cylinder hole is arranged between the inner side of the lock body and the inner lock cylinder in parallel, an inner marble component which extends into the inner lock cylinder is arranged in the inner marble hole, an inner set screw is arranged at the orifice of the inner marble hole, and an inner marble spring is arranged between the inner marble component and the inner set screw; the inner marble component comprises a lower ball VI and a flat-head ball, and the flat-head ball is positioned between the lower ball VI and the corresponding inner marble spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711321185.6A CN108060835B (en) | 2017-12-12 | 2017-12-12 | Anti-damage precision mechanical double-lock-cylinder safety anti-theft lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711321185.6A CN108060835B (en) | 2017-12-12 | 2017-12-12 | Anti-damage precision mechanical double-lock-cylinder safety anti-theft lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108060835A CN108060835A (en) | 2018-05-22 |
| CN108060835B true CN108060835B (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711321185.6A Active CN108060835B (en) | 2017-12-12 | 2017-12-12 | Anti-damage precision mechanical double-lock-cylinder safety anti-theft lock |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211422134U (en) * | 2018-08-23 | 2020-09-04 | 程军 | Anti-prying double-opening safety lock |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8950226B2 (en) * | 2011-10-12 | 2015-02-10 | Moshe Dolev | Cylinder lock assembly with non-rotating elements |
| CN203347351U (en) * | 2013-06-25 | 2013-12-18 | 李英虎 | Mechanical anti-theft lock |
| GB2516430A (en) * | 2013-07-19 | 2015-01-28 | Grouphomesafe Ltd | Lock mechanism |
| CN204040653U (en) * | 2014-08-15 | 2014-12-24 | 顾煜 | The two clutch theftproof lock of tamper-proof change core |
| CN205089069U (en) * | 2015-09-09 | 2016-03-16 | 嘉兴美可泰科技有限公司 | Prevent destroying european style lock core |
| CN205089070U (en) * | 2015-09-09 | 2016-03-16 | 嘉兴美可泰科技有限公司 | Twin -lock core tapered end |
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| CN108060835A (en) | 2018-05-22 |
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