CN202031396U - Rotary safety lock - Google Patents
Rotary safety lock Download PDFInfo
- Publication number
- CN202031396U CN202031396U CN2011200902036U CN201120090203U CN202031396U CN 202031396 U CN202031396 U CN 202031396U CN 2011200902036 U CN2011200902036 U CN 2011200902036U CN 201120090203 U CN201120090203 U CN 201120090203U CN 202031396 U CN202031396 U CN 202031396U
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- China
- Prior art keywords
- lock
- cylinder cover
- lock cylinder
- lock housing
- clutch
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- Expired - Lifetime
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Abstract
The utility model relates to a rotary safety lock, which comprises a lock shell, a lock cylinder and a rotating tongue, wherein an assembly hole is arranged on the lock shell, and the lock cylinder is inserted into the assembly hole; the lock cylinder is axially positioned relative to the assembly hole and is rotatably matched relative to the assembly hole, and one end of the lock cylinder toward the back of the lock shell is fixedly connected with the rotating tongue; one end of the lock cylinder toward the front of the lock shell is provided with a key action section, and a lock cylinder cover is arranged in the assembly hole on the front of the lock shell; a through hole is arranged at the center of the lock cylinder cover, so that the lock cylinder cover forms slide fit in the axial direction relative to the key action section; a shaft shoulder is arranged on the lock cylinder at the root of the key action section, and an axially acted spring is arranged between the shaft shoulder and the lock cylinder cover; and the spring pushes the lock cylinder cover to an opening of the assembly hole on the front of the lock shell in an assembly state, and clutch teeth and clutch grooves are respectively arranged on the periphery of the lock cylinder cover and the inner circumference of the opening of the assembly hole on the front of the lock shell, which are corresponding to an unlocking corner position and a locking corner position. In the rotary safety lock, the unlocking and locking states are more stable.
Description
Technical field
The utility model relates to a kind of lockset, the industrial safety revolution lock of industries such as particularly track traffic, wind-power electricity generation, communication apparatus.This lockset can be applicable to a body, forms and cabinet etc.
Background technology
On the vehicle or equipment of industries such as track traffic, wind-power electricity generation, communication apparatus, a large amount of revolution locks that use come lock door body, forms and cabinet.The revolution lock is made up of lock housing, lock core and dead bolt usually, and wherein, lock core is installed in the lock housing, and lock housing is rotatably assorted relatively, and the front of lock core is a key effect end, fixedlys connected with dead bolt in the back side, and dead bolt is for changeing tongue structure.Clockwise rotate from the angle of unblanking and realize shutting when shutting angle when key drive to change tongue by lock core, change tongue and rotate counterclockwise and realize unblanking when unblanking angle from shutting angle when key drives by lock core.Though this lockset is simple in structure, it is extensive to use, but having shortcoming is that mechanism stability is poor under locking or unlocking condition, particularly be subjected to vibration, impact, during rotation under external force, lockset can become unlocking condition from lock-out state, perhaps becomes lock-out state from unlocking condition.Such as, the revolution lock is installed on the cabinet of railway carriage, owing to be subjected to vibration force, the revolution lock may be beaten opening door body automatically in the train vibration influence process; Owing to be subjected to impact force, the revolution lock also may be opened or the shutter door body automatically in the train braking process; For another example, the fan blade of large-scale wind driven generator is provided with a body, and the revolution lock is installed on the door body, descends fan blade to drive the revolution lock in working order and rotates, and under centrifugal force and action of gravity, the revolution lock also may be beaten opening door body automatically.In a word, this defective of revolution lock is to be brought by self structure, especially after the revolution lock uses for a long time repeatedly, serious wear between lock core and the lock housing, frictional force reduces gradually, easier under external force generation is above-mentioned opens or opens and closes phenomenon automatically, in case great potential safety hazard takes place to bring probably.
Summary of the invention
The utility model provides a kind of safety revolution lock higher with the stability of lock-out state of unblanking.
For achieving the above object, the technical solution adopted in the utility model is: a kind of safety revolution lock, comprise lock housing, lock core and commentaries on classics tongue, wherein, has a pilot hole on the lock housing, lock core is inserted in this pilot hole, relative pilot hole axial location of lock core and relative pilot hole are rotatably assorted, lock core is fixedlyed connected with the commentaries on classics tongue towards an end at the lock housing back side, lock core is provided with the key acting section towards an end in lock housing front, it is characterized in that: be provided with a Lock cylinder cover in the pilot hole in described lock housing front, these Lock cylinder cover central authorities are provided with a through hole, the shape of this through hole and size match with the cross sectional shape and the size of described key acting section, and are sleeved on the key acting section of lock core, and the relative key acting section of Lock cylinder cover is slidingly matched axial formation; The lock core of described key acting section root is provided with the shaft shoulder, is provided with the spring of axial action between this shaft shoulder and the Lock cylinder cover, and this spring is pushed Lock cylinder cover in the pilot hole aperture in lock housing front under confined state; The outer circumference of described Lock cylinder cover to the pilot hole aperture inner edge in described lock housing front circumferentially among both, unblank angle position and shut angle position of correspondence, one are provided with the clutch tooth, another person is provided with clutch slot, when the relative lock housing of lock core is in when unblanking angle position or shutting angle position, described spring forces the clutch tooth to embed clutch slot, making the relative lock housing of lock core circumferentially form the location in revolution cooperates, when key inserts the key acting section, the pressure that key overcomes spring forces Lock cylinder cover to retreat, the clutch tooth is separated with clutch slot, constitute revolution location clutch structure with this.
Related content in the technique scheme is explained as follows:
In the such scheme, the pilot hole aperture inner edge in described lock housing front is provided with the step that extends internally, and breaks away from the pilot hole of lock housing to stop Lock cylinder cover.
The utility model operating principle is: when lockset is in the state of shutting or unlocking condition, Lock cylinder cover is in the state of being meshed with the clutch structure of lock housing, this moment, Lock cylinder cover can only endwisely slip with respect to lock housing, and can not rotate, the lock core and the commentaries on classics tongue that fix with Lock cylinder cover also just can't rotate with respect to lock housing, change that tongue rotate in place that is the open and close state of lockset, promptly Wai Bu rotating torque can't change the state that lockset opens or closes; In the time will changing the state that lockset opens or closes, need to use key, key is inserted lockset, key is with after key acting section on the lock core cooperates, promote key, the pressure that key overcomes spring forces Lock cylinder cover to retreat, and the clutch tooth is separated with clutch slot, and lock housing no longer can limit Lock cylinder cover and the rotation of the lock core that engages with Lock cylinder cover, lock core and lock housing are rotatably assorted, key applies rotatory force to lock core, and lock core drives changes the tongue rotation, the rotation of changeing tongue has realized that promptly the state of lockset changes, lock core also drives the rotation of the Lock cylinder cover that engages with it when rotating, when unblank angle position or when shutting angle position, the clutch structure on Lock cylinder cover and the lock housing aligns once more of turning to of the relative lock housing of lock core, unclamp key, thrust to Lock cylinder cover disappears, and under elastic force, the clutch structure of Lock cylinder cover and lock housing meshes once more at spring shaft.When Lock cylinder cover is meshed with the clutch structure of lock housing, even lockset is subjected to centrifugal force or is subjected to such as other external force effects such as vibration, impacts because of self rotation, external force moment also is difficult to the engaging of overdrive clutch structure, and can not make lockset become unlocking condition from lock-out state, perhaps become lock-out state from unlocking condition, the state that opens or closes of lockset is more stable.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, because the utility model Lock cylinder cover, has limited the rotation of commentaries on classics tongue with respect to lock housing with after the clutch structure of lock housing cooperates, the state that opens or closes of lockset is more stable.
2, since the utility model key inserts, promote, rotate and unclamps with unblank or shut action in promptly finished clutch slot and clutch tooth from be engaged to by separate, misplace and align after the whole actions of meshing once more, with the common phase-locked ratio of revolution that does not have clutch structure, the user need not carry out additional act can realize securely unlocking or the function that shuts, easy to use.
3, because the utility model is pushed Lock cylinder cover the pilot hole aperture of lock housing front at the confined state lower spring, the positive concordant tight of the front of Lock cylinder cover and lock housing can prevent that dust from entering lock housing; Simultaneously, when lockset is in the intermediateness of Fei Kai and non-pass, the clutch structure of Lock cylinder cover and lock housing does not mesh, both offset, the axial overall length when axial overall length meshes greater than both, and this moment is if unclamp key, the user can observe Lock cylinder cover recessed in the lock housing, Lock cylinder cover is no longer concordant with lock housing, promptly only can judge the lockset state from outward appearance, has improved the safety that lockset uses.
Description of drawings
Accompanying drawing 2 is the structure chart of Lock cylinder cover among Fig. 1;
Accompanying drawing 3 is the structure chart of lock housing among Fig. 1;
Accompanying drawing 4 is the structure chart of lock core among Fig. 1;
Accompanying drawing 5 is the schematic diagram that the utility model among Fig. 1 is in the state of shutting, and wherein Fig. 5 a is a front view, and Fig. 5 b is a vertical view, and Fig. 5 c is the matching chart of Lock cylinder cover and lock housing, and Fig. 5 d is the state diagram that is installed on door and the doorframe;
Accompanying drawing 6 is in the schematic diagram of the intermediateness that shuts and unblank for the utility model among Fig. 1, wherein Fig. 6 a is a front view, and Fig. 6 b is a vertical view, and Fig. 6 c is the matching chart of Lock cylinder cover and lock housing, Fig. 6 d is the state diagram that is installed on door and the doorframe, and Fig. 6 e is a sectional axonometric drawing;
Accompanying drawing 7 is the schematic diagram that the utility model among Fig. 1 is in unlocking condition, and wherein Fig. 7 a is a front view, and Fig. 7 b is a vertical view, and Fig. 7 c is the matching chart of Lock cylinder cover and lock housing, and Fig. 7 d is the state diagram that is installed on door and the doorframe;
Accompanying drawing 8 is the vertical view of first kind of mated condition of Lock cylinder cover of the present utility model and lock housing, and wherein lock housing is provided with two clutch teeth, and Lock cylinder cover is provided with three clutch slot;
Accompanying drawing 9 is the vertical view of second kind of mated condition of Lock cylinder cover of the present utility model and lock housing, and wherein Lock cylinder cover is provided with a clutch tooth, and lock housing is provided with two clutch slot;
Accompanying drawing 10 is the vertical view of the third mated condition of Lock cylinder cover of the present utility model and lock housing, and wherein Lock cylinder cover is provided with three clutch teeth, and lock housing is provided with three clutch slot;
Accompanying drawing 11 is the vertical view of the 4th kind of mated condition of Lock cylinder cover of the present utility model and lock housing, and wherein lock housing is provided with four clutch teeth, and Lock cylinder cover is provided with four clutch slot;
Accompanying drawing 12 is the vertical view of the 5th kind of mated condition of Lock cylinder cover of the present utility model and lock housing, and wherein Lock cylinder cover is provided with four clutch teeth, and lock housing is provided with four clutch slot;
Accompanying drawing 13 is the vertical view of the 6th kind of mated condition of Lock cylinder cover of the present utility model and lock housing, and wherein Lock cylinder cover is provided with six clutch teeth, and lock housing is provided with six clutch slot.
In the above accompanying drawing: 1, lock housing; 2, lock core; 3, change tongue; 4, pilot hole; 5, Lock cylinder cover; 6, spring; 7, door; 8, doorframe; 9, key acting section; 10, the shaft shoulder; 11, clutch slot; 12, clutch tooth; 13, through hole; 16, step; 17, first screw; 18, lock housing lid; 19, nut; 20, toothed pad; 21, second screw; 22, O circle; 23, flat sealed circle; 24, first alignment mark; 24 ', second alignment mark.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: shown in accompanying drawing 1～4, a kind of safety revolution lock, comprise lock housing 1, lock core 2 and change tongue 3, wherein, have a pilot hole 4 on the lock housing 1, lock core 2 is inserted in this pilot hole 4, and lock core 2 relative pilot hole 4 axial location and relative pilot hole 4 are rotatably assorted, the end of lock core 2 towards lock housing 1 back side adopts second screw 21 to fixedly connected with commentaries on classics tongue 3, and lock core 2 is provided with key acting section 9 towards an end in lock housing 1 front.Key acting section 9 be on the lock core 2 with a section of key mating reaction, key acting section 9 in the present embodiment is a triangular prism, engage the groove that matches fully and have on the key with triangular prism, so that key is when inserting key acting section 9, both engagings limit the rotation of key with respect to key acting section 9.Key acting section 9 also can be quadrangular, pentagonal prism or cross section and is ellipse, cross, T shape, L shaped etc. cylinder, engage the groove that matches fully and have on the key with key acting section 9, also can be opposite, promptly be provided with the various cylinders of triangular prism, quadrangular, pentagonal prism or other non-circle in cross section on the key, engage the groove that matches with it fully and have on the key acting section 9, can limit the rotation of key with respect to key acting section 9.
Be provided with a Lock cylinder cover 5 in the pilot hole 4 in lock housing 1 front, these Lock cylinder cover 5 central authorities are provided with a through hole 13, the shape of this through hole 13 and size match with the cross sectional shape and the size of key acting section 9, and be sleeved on the key acting section 9 of lock core 2, Lock cylinder cover 5 relative key acting sections 9 are slidingly matched axial formation.Through hole 13 is the triangular column through hole that matches with triangular prism key acting section 9 in the present embodiment.
The lock core 2 of key acting section 9 roots is provided with the shaft shoulder 10, be provided with the spring 6 of axial action between this shaft shoulder 10 and the Lock cylinder cover 5, axial 10 are provided with O circle 22, offset with the pilot hole 4 of lock housing 1, water proof and dust proof, the pilot hole 4 at lock housing 1 back side adopts 18 sealings of lock housing lid, prop up the shaft shoulder of lock core 2 simultaneously, make lock core 2 relative pilot hole 4 axial location, first screw 17 passes lock housing 1 and props up lock housing lid 18 in the lock housing installation opening 4, prevents that lock housing lid 18 from rotating with respect to lock housing 1.Lock housing 1 outside sheathed nut 19, toothed pad 20 and flat sealed circle 23 all plays effect fixing and that make things convenient for lockset to install.Lock cylinder cover 5 is pushed to pilot hole 4 apertures in lock housing 1 front at confined state lower spring 6; The outer circumference of Lock cylinder cover 5 to the pilot hole 4 aperture inner edges in lock housing 1 front circumferentially among both, unblank angle position and shut angle position of correspondence, one are provided with clutch tooth 12, another person is provided with clutch slot 11, on lock housing 1, be provided with two clutch teeth 12 in the present embodiment, be provided with three clutch slot 11 at Lock cylinder cover 5, one of them clutch slot 11 size is bigger, also can play the effect of rotary spacing.
When lock core 2 relative lock housings 1 are in when unblanking angle position or shutting angle position, spring 6 forces clutch tooth 12 to embed clutch slot 11, making lock core 2 relative lock housings 1 circumferentially form the location in revolution cooperates, when key inserts key acting section 9, the pressure that key overcomes spring 6 forces Lock cylinder cover 5 to retreat, clutch tooth 12 is separated with clutch slot 11, constitute revolution location clutch structure with this.
For stopping that Lock cylinder cover 5 breaks away from the pilot hole 4 of lock housing 1, the pilot hole 4 aperture inner edges in lock housing 1 front are provided with the step 16 that extends internally.The relative turned position with lock housing 1 of second alignment mark 24 on first alignment mark 24 on the lock housing 1 and the lock core 2 ' can represent lock core 2, the state that the expression lockset opens or closes.
Referring to accompanying drawing 5, lockset is in the state of shutting, Lock cylinder cover 5 is in the state of being meshed with the clutch structure of lock housing 1, this moment, Lock cylinder cover 5 can only endwisely slip with respect to lock housing 1, and can not rotate, the lock core 2 and the commentaries on classics tongue 3 that fix with Lock cylinder cover 5 also just can't rotate with respect to lock housing 1, and outside rotating torque can't change the state that lockset opens or closes.
Referring to accompanying drawing 6～7, in the time will unblanking, need to use key, key is inserted lockset, key is with after key acting section 9 on the lock core 2 cooperates, promote key, the pressure that key overcomes spring 6 forces Lock cylinder cover 5 to retreat, clutch tooth 12 is separated with clutch slot 11, lock housing 2 no longer can limit Lock cylinder cover 5 and the rotation of the lock core 2 that engages with Lock cylinder cover 5, and lock core 2 is rotatably assorted key with lock housing 1, lock core 2 is applied rotatory force, lock core 2 drives changes tongue 3 rotations, and the rotation of changeing tongue 3 has realized that promptly the state of lockset changes, and lock core 2 also drives the rotation of the Lock cylinder cover 5 that engages with it when rotating, when turning to of lock core 2 relative lock housings 1 unblanked angle position, clutch structure on Lock cylinder cover 5 and the lock housing 1 aligns once more, unclamps key, to the thrust disappearance of Lock cylinder cover 5, under spring 6 axial elastic force, Lock cylinder cover 5 meshes once more with the clutch structure of lock housing 1.
When Lock cylinder cover 5 is meshed with the clutch structure of lock housing 1, even lockset is subjected to centrifugal force or is subjected to such as other external force effects such as vibration, impacts because of self rotation, external force moment also is difficult to the engaging of overdrive clutch structure, and can not make lockset become lock-out state from unlocking condition, the state of lockset is highly stable.
During use, key insert, promote, rotate and unclamp with unblank or shut action in promptly finished clutch slot 11 and clutch tooth 12 from be engaged to by separate, misplace and align after the whole actions of engagement once more, with the common phase-locked ratio of revolution that does not have clutch structure, need not carry out additional act and can realize securely unlocking or the function that shuts, easy to use.
Push Lock cylinder cover 5 pilot hole 4 apertures of lock housing 1 front at confined state lower spring 6, the positive concordant tight of the front of Lock cylinder cover 5 and lock housing 1 can prevent that dust from entering lock housing 1; Simultaneously, when lockset is in the intermediateness of Fei Kai and non-pass, the clutch structure of Lock cylinder cover 5 and lock housing 1 does not mesh, both offset, the axial overall length when axial overall length meshes greater than both, and this moment is if unclamp key, the user can observe Lock cylinder cover 5 recessed in the lock housing 1, Lock cylinder cover 5 is no longer concordant with lock housing 1, promptly only can judge the lockset state from outward appearance, has improved the safety that lockset uses.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (2)
1. a safety revolution is locked, comprise lock housing (1), lock core (2) and commentaries on classics tongue (3), wherein, has a pilot hole (4) on the lock housing (1), lock core (2) is inserted in this pilot hole (4), relative pilot hole (4) axial location of lock core (2) and relative pilot hole (4) are rotatably assorted, lock core (2) is fixedlyed connected with commentaries on classics tongue (3) towards an end at lock housing (1) back side, lock core (2) is provided with key acting section (9) towards the positive end of lock housing (1), it is characterized in that: be provided with a Lock cylinder cover (5) in the pilot hole (4) in described lock housing (1) front, this Lock cylinder cover (5) central authorities are provided with a through hole (13), shape of this through hole (13) and size match with the cross sectional shape and the size of described key acting section (9), and be sleeved on the key acting section (9) of lock core (2), the relative key acting section (9) of Lock cylinder cover (5) is slidingly matched axial formation; The lock core (2) of described key acting section (9) root is provided with the shaft shoulder (10), be provided with the spring (6) of axial action between this shaft shoulder (10) and the Lock cylinder cover (5), this spring (6) is pushed Lock cylinder cover (5) to lock housing (1) positive pilot hole (4) aperture under confined state; The outer circumference of described Lock cylinder cover (5) to positive pilot hole (4) the aperture inner edge of described lock housing (1) circumferentially among both, unblank angle position and shut angle position of correspondence, one are provided with clutch tooth (12), another person is provided with clutch slot (11), when lock core (2) relatively lock housing (1) be in when unblanking angle position or shutting angle position, described spring (6) forces clutch tooth (12) to embed clutch slot (11), make the relative lock housing (1) of lock core (2) circumferentially form the location cooperation in revolution, when key inserts key acting section (9), the pressure that key overcomes spring (6) forces Lock cylinder cover (5) to retreat, clutch tooth (12) is separated with clutch slot (11), constitute revolution location clutch structure with this.
2. safety revolution lock according to claim 1, it is characterized in that: positive pilot hole (4) the aperture inner edge of described lock housing (1) is provided with the step (16) that extends internally, and breaks away from the pilot hole (4) of lock housing (1) to stop Lock cylinder cover (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200902036U CN202031396U (en) | 2011-03-31 | 2011-03-31 | Rotary safety lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200902036U CN202031396U (en) | 2011-03-31 | 2011-03-31 | Rotary safety lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202031396U true CN202031396U (en) | 2011-11-09 |
Family
ID=44893698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200902036U Expired - Lifetime CN202031396U (en) | 2011-03-31 | 2011-03-31 | Rotary safety lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202031396U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306547A (en) * | 2013-05-14 | 2013-09-18 | 苏州德仕耐五金技术有限公司 | Anti-theft security tensioning lock |
| CN103321486A (en) * | 2013-05-14 | 2013-09-25 | 苏州德仕耐五金技术有限公司 | Anti-theft security rotary lock |
| CN104373000A (en) * | 2014-10-31 | 2015-02-25 | 苏州德仕耐五金技术有限公司 | Safety rotation lock |
| CN104895414A (en) * | 2015-05-12 | 2015-09-09 | 深圳市同创新佳科技有限公司 | Engaging and disengaging mechanism for door lock |
| CN107165502A (en) * | 2016-03-08 | 2017-09-15 | 秦子建 | A kind of lock |
| CN107165503A (en) * | 2016-03-08 | 2017-09-15 | 秦子建 | A kind of safety lockset |
| CN108252576A (en) * | 2018-02-01 | 2018-07-06 | 浙江中昊安防科技有限公司 | A kind of lock core converter |
| CN109339578A (en) * | 2018-10-31 | 2019-02-15 | 沈阳航天新光集团有限公司 | Integral type retaining mechanism |
-
2011
- 2011-03-31 CN CN2011200902036U patent/CN202031396U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306547A (en) * | 2013-05-14 | 2013-09-18 | 苏州德仕耐五金技术有限公司 | Anti-theft security tensioning lock |
| CN103321486A (en) * | 2013-05-14 | 2013-09-25 | 苏州德仕耐五金技术有限公司 | Anti-theft security rotary lock |
| CN103306547B (en) * | 2013-05-14 | 2015-09-09 | 苏州德仕耐五金技术有限公司 | Anti-theft security Strain lock |
| CN103321486B (en) * | 2013-05-14 | 2016-01-13 | 苏州德仕耐五金技术有限公司 | Anti-theft security rotary lock |
| CN104373000A (en) * | 2014-10-31 | 2015-02-25 | 苏州德仕耐五金技术有限公司 | Safety rotation lock |
| CN104895414A (en) * | 2015-05-12 | 2015-09-09 | 深圳市同创新佳科技有限公司 | Engaging and disengaging mechanism for door lock |
| CN107165502A (en) * | 2016-03-08 | 2017-09-15 | 秦子建 | A kind of lock |
| CN107165503A (en) * | 2016-03-08 | 2017-09-15 | 秦子建 | A kind of safety lockset |
| CN107165502B (en) * | 2016-03-08 | 2019-10-18 | 秦子建 | A kind of lock |
| CN107165503B (en) * | 2016-03-08 | 2019-10-18 | 秦子建 | A kind of safety lockset |
| CN108252576A (en) * | 2018-02-01 | 2018-07-06 | 浙江中昊安防科技有限公司 | A kind of lock core converter |
| CN108252576B (en) * | 2018-02-01 | 2023-06-09 | 浙江中昊安防科技有限公司 | Lock cylinder converter |
| CN109339578A (en) * | 2018-10-31 | 2019-02-15 | 沈阳航天新光集团有限公司 | Integral type retaining mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111109 |
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| CX01 | Expiry of patent term |