CN106677634B - Axial lockset - Google Patents
Axial lockset Download PDFInfo
- Publication number
- CN106677634B CN106677634B CN201611049413.4A CN201611049413A CN106677634B CN 106677634 B CN106677634 B CN 106677634B CN 201611049413 A CN201611049413 A CN 201611049413A CN 106677634 B CN106677634 B CN 106677634B
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- CN
- China
- Prior art keywords
- locking
- lock
- clutch sleeve
- steel ball
- lock knob
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/02—Locks for railway freight-cars, freight containers or the like; Locks for the cargo compartments of commercial lorries, trucks or vans
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/06—Lock cylinder arrangements
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/10—Handles
Abstract
The invention discloses an axial lockset, and belongs to the field of locksets. The lock comprises a lock body, an unlocking device and a locking device, wherein a containing hole extending along the axial direction of the lock body is formed in the lock body, and the unlocking device is wholly or partially contained in the containing hole; the unlocking device comprises a locking and twisting part, a clutch part and a fastening part, wherein the locking and twisting part is in driving fit with the clutch part; the fastening part enables the locking and twisting part and the clutch part to be fixed in the accommodating hole; the unlocking device is detachably connected with the locking device. The axial lockset of the invention adopts the lock torsion part and the clutch part to form a double-clutch locking structure, and unlocking can be realized without rotating the lock body connected with the lock body, so that the unlocking/locking action is simple and reliable.
Description
Technical Field
The invention belongs to the field of locks, and particularly relates to an axial lock.
Background
For a locking scheme of a cabinet door of a trolley, the traditional five-prevention mode is a padlock and an accessory locking mode, generally a mode of a mesh door pin and a padlock, the locking mode is operated as unlocking, taking down the padlock, unscrewing the mesh door pin, opening the cabinet door, closing the cabinet door, screwing down the mesh door pin and hanging the padlock, the operation is troublesome, and the locking safety is not high.
And for padlock + hinge annex shutting mode, the operating procedure is equally loaded down with trivial details, and mostly need the drilling installation, has increased field personnel work load, and can destroy the original appearance of field device, still has the risk of harm equipment.
Disclosure of Invention
The invention aims to: an axial lock which is simple and reliable in unlocking/locking operation is provided.
The technical scheme adopted by the invention is as follows: an axial lock comprises a lock body, an unlocking device and a locking device, wherein a containing hole extending along the axial direction of the lock body is formed in the lock body, and the unlocking device is wholly or partially contained in the containing hole;
the unlocking device comprises a locking and twisting part, a clutch part and a fastening part, wherein the locking and twisting part is in driving fit with the clutch part; the fastening part enables the locking and twisting part and the clutch part to be fixed in the accommodating hole;
the clutch part comprises a locking clutch sleeve, a locking clutch sleeve reset spring, a locking clutch sleeve fixing seat and a locking steel ball, and the locking clutch sleeve reset spring are sequentially sleeved on the locking clutch sleeve fixing seat from top to bottom; a steel ball accommodating groove which is sunken from inside to outside is arranged on the side wall of the locking clutch sleeve; a steel ball accommodating through hole is formed in the side wall of the locking clutch sleeve fixing seat; one end of the locking clutch sleeve reset spring is fixed on the locking clutch sleeve, and the other end of the locking clutch sleeve reset spring is fixed on the locking clutch sleeve fixing seat; the locking clutch sleeve fixing seat is provided with a built-in cavity, and a locking steel ball anti-falling elastic mechanism is arranged in the cavity;
the locking steel ball anti-falling elastic mechanism comprises an unlocking push rod and an unlocking push rod return spring; the unlocking push rod can axially move relative to the locking clutch sleeve fixing seat through a guide screw and is limited in the cavity of the locking clutch sleeve fixing seat; one end of the unlocking push rod return spring is abutted with the inner side of the lower end of the unlocking push rod; the other end of the unlocking push rod return spring abuts against the inner side of the top end of the locking clutch sleeve fixing seat;
the fastening part comprises a lock body mounting flange, a lock body fastening ring and a fixing plate; the lock body mounting flange is in an inverted hollow convex ring shape, and external threads are arranged on the outer side of a convex part of the convex ring; the lock body fastening ring is a hollow ring with internal threads; the external thread of the lock body mounting flange can be meshed with the internal thread of the lock body fastening ring; the fixing plate is in a hollow ring shape; the fixed plate is nested at the lower end of the locking clutch sleeve fixed seat; the lock body mounting flange is fixed to the fixing plate through a screw;
a limiting groove matched with the locking steel ball is arranged at the upper end of the locking device, when the unlocking device is connected with the locking device, an included angle between the center of the steel ball containing groove and a perpendicular line of the axis of the clutch part and an included angle between the center of the steel ball containing through hole and a perpendicular line of the axis of the clutch part are alpha, and alpha is not zero; at the moment, the locking steel ball is positioned in the steel ball containing through hole and the limiting groove, so that the locking device cannot be separated from the unlocking device; when the unlocking device and the locking device need to be separated, the locking torsion part drives the locking clutch sleeve to rotate, so that the centers of the steel ball accommodating groove, the steel ball accommodating through hole and the limiting groove are in the same straight line; the locking steel balls radially move to the steel ball accommodating grooves and the steel ball accommodating through holes under the action of the unlocking push rod, so that the locking device can be separated from the unlocking device.
The axial lock adopts the lock torsion part and the clutch part to form a double-clutch locking structure, and can realize unlocking without rotating a handle connected with the lock body (the lock body is in a static state, so the axial lock is also called as a static axial lock), so that the unlocking/locking action is simple and reliable. And can be installed and fixed by the original hole sites of the equipment. Compared with the traditional five-prevention locking scheme, the static axial locking lockset can be more conveniently and safely applied to field equipment.
Furthermore, the lock knob part comprises a lock knob fixing sleeve, a lock knob limiting clamping plate and a lock knob return spring; the lock knob fixing sleeve, the lock knob limiting clamping plate and the lock knob reset spring are sequentially sleeved on the lock knob from top to bottom; one end of the lock knob reset spring is fixed on the lock knob, and the other end of the lock knob reset spring is fixed on the lock knob limiting clamping plate; the upper end of the lock knob penetrates through an axial through hole in an upper end plate of the lock knob fixing sleeve; the lock knob can rotate relative to the lock knob fixing sleeve.
Furthermore, a bulge is arranged on the bottom plate of the lock knob, and a groove matched with the bulge is arranged at the upper end of the locking clutch sleeve.
Further, the included angle alpha ranges from 55 degrees to 70 degrees.
Further, the locking device is a locking pin.
Furthermore, a dustproof cover and a code stacking groove are arranged on a handle of the lock body, and the dustproof cover is matched with the code stacking groove; the chip slot is provided with a chip with an identity mark.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of the overall mechanism of an axial lock;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a side sectional application view of the axial lock when locked;
FIG. 4 is a view A-A of FIG. 3;
FIG. 5 is a side sectional application view of the axial lock when unlocked;
fig. 6 is a view B-B of fig. 5.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the axial lock includes a lock body 1, a handle connected to the lock body 1 (the lock body and the handle may also be integrally formed), an unlocking device 2 and a locking device 3.
As shown in fig. 1 and 2, a dust cover 1a and a code receiving slot 1b are provided at the upper end of a handle connected to a lock body 1, the dust cover 1a corresponds to the code receiving slot 1b (the cover 1a can completely block the code receiving slot 1 b), and the dust cover 1a is hinged to the handle through a dust cover pressing plate 1 c. The code piece 1d having the identification is fastened to the code piece groove 1b by a screw.
As shown in fig. 1, 2 and 3, the lock body 1 is provided with a receiving hole extending along the axial direction thereof, and the unlocking means 2 is wholly or partially received in the receiving hole.
More specifically, the unlocking device 2 comprises a locking and twisting part, a clutch part and a fastening part which can be automatically reset, and the locking and twisting part and the clutch part can be in driving fit; the fastening portion fixes the lock knob and the clutch portion in the accommodation hole.
More specifically, the unlocking means 2 is detachably connected to the locking means 3.
As shown in fig. 2 and 3, the lock knob portion includes a lock knob fixing sleeve 4a, a lock knob 4b, a lock knob limiting clamping plate 4c, a lock knob return spring 4d and a lock knob return spring fixing pin 4 e; the lock knob fixing sleeve 4a is a hollow cylindrical body without a bottom plate, the lock knob fixing sleeve 4a, a lock knob limiting clamping plate 4c and a lock knob reset spring 4d are sequentially sleeved on the lock knob 4b from top to bottom, the lock knob reset spring fixing pin 4e is fixed on the lock knob 4b, one end of the lock knob reset spring 4d is fixed on the lock knob reset spring fixing pin 4e, and the other end of the lock knob reset spring 4d is fixed on the lock knob limiting clamping plate 4 c; the upper end of the lock knob 4b penetrates through an axial through hole in the upper end plate of the lock knob fixing sleeve 4 a. The lower end of the lock knob 4b is provided with a circular bottom plate, and one side of the circular bottom plate, which is far away from the upper end of the lock knob, is provided with a bulge 401 which is oppositely arranged. The lock knob limiting clamping plate 4c, the lock knob return spring 4d and the lock knob 4b are provided with round bottom plates at the lower ends thereof, and the round bottom plates are all positioned in the lock knob fixing sleeve 4 a. After the lock body is installed in place, the lock knob 4b can only rotate around the axis thereof and is limited in the axial direction, and cannot generate axial displacement.
When the lock knob 4b is driven to rotate, the lock knob return spring 4d is twisted and elastically deformed to form return elastic potential energy; when the driving force on the lock knob 4b disappears, the lock knob 4b resets through the return elastic potential energy; a lock knob stopper pin 1e is provided at an upper portion of the lock body 1, and the rotation angle of an operation terminal (not shown) driving the lock knob 4b can be restricted by the lock knob stopper pin 1e, and the circumferential rotation angle of the lock knob 4b is restricted by the combined action of the lock knob stopper pin 1e and the lock knob return spring 4 d.
As shown in fig. 2 and 3, the clutch part includes a substantially annular locking clutch sleeve 5a, a locking clutch sleeve return spring 5b and a locking clutch sleeve fixing seat 5c, and the locking clutch sleeve 5a and the locking return spring 5b are sequentially sleeved on the locking clutch sleeve fixing seat 5c from top to bottom; one end of the locking reset spring 5b is fixed on the locking clutch sleeve 5a through a screw, and the other end is fixed on the locking clutch sleeve fixing seat 5 c; when the locking clutch sleeve 5a is driven to rotate, the locking return spring 5b is twisted and elastically deformed to form restoring elastic potential energy; when the driving force on the locking clutch sleeve 5a disappears, the locking clutch sleeve 5a is reset through the restoring elastic potential energy.
More specifically, the upper end of the locking clutch sleeve 5a is provided with a concave part 501 matched with the bulge 401 at the lower end of the bottom plate of the lock knob, and the locking clutch sleeve 5a can be driven to rotate when the lock knob 4b rotates.
As shown in fig. 2, 3 and 4, the clutch part includes a locking steel ball 502, a steel ball receiving groove 504 recessed from the inside to the outside is provided in the locking clutch sleeve 5a, and a steel ball receiving through hole 503 is provided in the locking clutch sleeve fixing seat 5 c. When ball receiving groove 504 and ball receiving opening 503 are in the corresponding position, locking ball 502 can move radially from ball receiving opening 503 to ball receiving groove 504 under the action of external force.
The locking clutch sleeve fixing seat 5c is integrally in a hat shape (the section is in a shape of a Chinese character 'ji' with an outer folded edge), and an unlocking push rod 5e and an unlocking push rod return spring 5d are arranged in the locking clutch sleeve fixing seat; the unlocking push rod 5e and the unlocking push rod return spring 5d jointly play roles of preventing the locking steel ball from being separated from the steel ball containing through hole 503 and facilitating the receiving and unlocking of the locking device 3; of course, other locking steel ball anti-drop elastic mechanisms can be used instead. The unlocking push rod 5e can axially move relative to the locking clutch sleeve fixing seat 5c through a guide screw and is limited in the cavity of the locking clutch sleeve fixing seat 5 c. One end of the unlocking push rod return spring 5d is abutted against the inner side of the lower end of the unlocking push rod 5 e; the other end of the unlocking push rod return spring 5d abuts against the inner side of the top end of the locking clutch sleeve fixing seat 5 c.
As shown in fig. 2 and 3, the fastening portion includes a fixing plate 6a, a lock body mounting flange 6b and a lock body fastening ring 6 c; the fixing plate 6a is in a hollow ring shape; the lock body mounting flange 6b is in an inverted hollow convex ring shape, and an external thread is arranged on the outer side of a convex part of the convex ring; the lock body fastening ring 6c is a hollow ring with internal threads. The fixed plate 6a is nested at the lower end of the locking clutch sleeve fixed seat 5c, so that the bottom end of the locking clutch sleeve fixed seat 5c forms an annular plane; the lock body mounting flange 6b is then screwed to the bottom end of the locking clutch sleeve holder 5 c. When the lock body needs to be fixed on a cabinet door, the lock body 1 is fixed on a cabinet door 7 of the switch cabinet through threads on the lock body fastening ring 6c and the lock body mounting flange 6 b.
As shown in fig. 1 and 3, the locking device 3 is a locking pin, and the locking device 3 is fixed on the cabinet body 8 through a nut 3b in a threaded connection manner; the upper end of the locking pin is provided with a limiting groove 3a matched with the locking steel ball 502, and under the action of external force, the locking steel ball 502 can realize the connection or separation of the unlocking device 2 and the locking device 3 through the radial reciprocating movement formed among the steel ball accommodating groove 504, the steel ball accommodating through hole 503 and the limiting groove 3 a.
The using method and the working principle are as follows:
locking an axial lock: as shown in fig. 2, 3 and 4, the lock body 1 is fixed on the cabinet door 7 of the switch cabinet by the lock body fastening ring 6c, and the locking device 3 is fixed on the cabinet body 8 by the nut 3b in threaded connection. At this time, the horizontal relative angle between the locking accommodating groove 504 and the steel ball through hole is α, the value range of α is 55 ° -70 °, α =62 ° is preferred in this embodiment, the radial movement of the locking steel ball 502 is limited by the working position of the locking clutch sleeve 5a, and the locking steel ball 502 is limited in the steel ball through hole 503 and the limiting groove 3a, so that the locking pin is prevented from being separated from the lock body, and the purpose of locking is achieved.
The unlocking push-rod return spring 5d is in a compressed state due to the urging by the locking pin.
Unlocking an axial lock: as shown in fig. 5 and 6, the operation terminal (not shown) is used to rotate the knob 4b, and the knob 4b rotates the clutch sleeve 5a for a certain angle α. At this time, the centers of the steel ball accommodating groove 504, the steel ball through hole 503 and the limiting groove 3a are in the same straight line, so that the locking steel ball 502 has a moving space in the radial direction of the lock body, and can avoid the locking pin. At the moment, the unlocking push rod 5e pops up the locking pin under the action of the unlocking push rod return spring 5d to finish unlocking; meanwhile, the operation terminal can be removed, the lock knob 4b returns to the initial position under the action of the lock knob reset torsion spring 4d, and then the cabinet door 7 can be opened by pulling the lock body 1.
When the cabinet door is required to be locked again, the cabinet door 7 is closed by force, the unlocking push rod 5e returns to a compression state under the axial acting force of the locking pin, the locking clutch sleeve 5a returns to a locking working position under the action of the locking clutch sleeve reset torsion spring 5c, and the locking steel ball 502 is extruded to a locking position to complete locking again.
Claims (7)
1. An axial lockset, which comprises a lock body, an unlocking device and a locking device and is characterized in that,
a containing hole extending along the axial direction of the lock body is formed in the lock body, and the unlocking device is wholly or partially contained in the containing hole;
the unlocking device comprises a locking and twisting part, a clutch part and a fastening part, wherein the locking and twisting part is in driving fit with the clutch part; the fastening part enables the locking and twisting part and the clutch part to be fixed in the accommodating hole;
the clutch part comprises a locking clutch sleeve, a locking clutch sleeve reset spring, a locking clutch sleeve fixing seat and a locking steel ball, and the locking clutch sleeve reset spring are sequentially sleeved on the locking clutch sleeve fixing seat from top to bottom; a steel ball accommodating groove which is sunken from inside to outside is arranged on the side wall of the locking clutch sleeve; a steel ball containing through hole is formed in the side wall of the locking clutch sleeve fixing seat; one end of the locking clutch sleeve reset spring is fixed on the locking clutch sleeve, and the other end of the locking clutch sleeve reset spring is fixed on the locking clutch sleeve fixing seat; the locking clutch sleeve fixing seat is provided with a built-in cavity, and a locking steel ball anti-falling elastic mechanism is arranged in the cavity;
the locking steel ball anti-falling elastic mechanism comprises an unlocking push rod and an unlocking push rod return spring; the unlocking push rod can axially move relative to the locking clutch sleeve fixing seat through a guide screw and is limited in the cavity of the locking clutch sleeve fixing seat; one end of the unlocking push rod return spring is abutted with the inner side of the lower end of the unlocking push rod; the other end of the unlocking push rod return spring abuts against the inner side of the top end of the locking clutch sleeve fixing seat;
the fastening part comprises a lock body mounting flange, a lock body fastening ring and a fixing plate; the lock body mounting flange is in an inverted hollow convex ring shape, and external threads are arranged on the outer side of a convex part of the convex ring; the lock body fastening ring is a hollow ring with internal threads; the external thread of the lock body mounting flange can be meshed with the internal thread of the lock body fastening ring; the fixing plate is in a hollow ring shape; the fixed plate is nested at the lower end of the locking clutch sleeve fixed seat; the lock body mounting flange is fixed to the fixing plate through a screw;
a limiting groove matched with the locking steel ball is arranged at the upper end of the locking device, when the unlocking device is connected with the locking device, an included angle between the center of the steel ball containing groove and a perpendicular line of the axis of the clutch part and an included angle between the center of the steel ball containing through hole and a perpendicular line of the axis of the clutch part are alpha, and alpha is not zero; at the moment, the locking steel ball is positioned in the steel ball containing through hole and the limiting groove, so that the locking device cannot be separated from the unlocking device; when the unlocking device and the locking device need to be separated, the locking torsion part drives the locking clutch sleeve to rotate, so that the centers of the steel ball accommodating groove, the steel ball accommodating through hole and the limiting groove are in the same straight line; the locking steel balls radially move to the steel ball accommodating grooves and the steel ball accommodating through holes under the action of the unlocking push rod, so that the locking device can be separated from the unlocking device.
2. The axial lock according to claim 1, characterized in that: the lock knob part can be automatically reset.
3. The axial lock according to claim 1 or 2, characterized in that: the lock knob part comprises a lock knob fixing sleeve, a lock knob limiting clamping plate and a lock knob reset spring; the lock knob fixing sleeve, the lock knob limiting clamping plate and the lock knob reset spring are sequentially sleeved on the lock knob from top to bottom; one end of the lock knob reset spring is fixed on the lock knob, and the other end of the lock knob reset spring is fixed on the lock knob limiting clamping plate; the upper end of the lock knob penetrates through an axial through hole in an upper end plate of the lock knob fixing sleeve; the lock knob can rotate relative to the lock knob fixing sleeve.
4. The axial lock according to claim 3, characterized in that: the bottom plate of the lock knob is provided with a bulge, and the upper end of the locking clutch sleeve is provided with a groove matched with the bulge.
5. The axial lock according to claim 1, characterized in that: the included angle alpha ranges from 55 degrees to 70 degrees.
6. The axial lock according to claim 1, characterized in that: the locking device is a locking pin.
7. The axial lock according to claim 1, characterized in that: a dustproof cover and a code stacking groove are arranged on a handle of the lock body, and the dustproof cover is matched with the code stacking groove; the chip slot is provided with a chip with an identity mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049413.4A CN106677634B (en) | 2016-11-25 | 2016-11-25 | Axial lockset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049413.4A CN106677634B (en) | 2016-11-25 | 2016-11-25 | Axial lockset |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106677634A CN106677634A (en) | 2017-05-17 |
| CN106677634B true CN106677634B (en) | 2022-08-05 |
Family
ID=58866708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611049413.4A Active CN106677634B (en) | 2016-11-25 | 2016-11-25 | Axial lockset |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106677634B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547521B (en) * | 2018-02-08 | 2019-11-12 | 长园共创电力安全技术股份有限公司 | A kind of grip handle lock |
| CN110344674A (en) * | 2019-04-22 | 2019-10-18 | 珠海优特电力科技股份有限公司 | Lockset |
| CN110043136B (en) * | 2019-04-22 | 2024-01-23 | 珠海优特电力科技股份有限公司 | Lock set |
| CN110131290B (en) * | 2019-06-19 | 2024-03-19 | 珠海优特电力科技股份有限公司 | Screw locking lockset |
| CN112523611B (en) * | 2020-11-17 | 2022-03-29 | 广州幻方电子科技有限公司 | Unlocking and locking device of intelligent lock and intelligent lock |
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| CN202990626U (en) * | 2012-10-25 | 2013-06-12 | 酷普仕有限公司 | Double lock bolt bicycle lock structure |
| RU2013121782A (en) * | 2013-05-06 | 2014-11-20 | Дмитрий Валентинович Маслов | ELECTROMAGNETIC LOCK (OPTIONS) |
| CN204081676U (en) * | 2014-08-21 | 2015-01-07 | 宁波永望电子科技有限公司 | A kind of hanging lock locking device |
| CN104989186A (en) * | 2015-04-29 | 2015-10-21 | 上海欧一安保器材有限公司 | Magnetic lock |
| CN206290117U (en) * | 2016-11-25 | 2017-06-30 | 长园共创电力安全技术股份有限公司 | A kind of axial lockset |
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2016
- 2016-11-25 CN CN201611049413.4A patent/CN106677634B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202990626U (en) * | 2012-10-25 | 2013-06-12 | 酷普仕有限公司 | Double lock bolt bicycle lock structure |
| RU2013121782A (en) * | 2013-05-06 | 2014-11-20 | Дмитрий Валентинович Маслов | ELECTROMAGNETIC LOCK (OPTIONS) |
| CN204081676U (en) * | 2014-08-21 | 2015-01-07 | 宁波永望电子科技有限公司 | A kind of hanging lock locking device |
| CN104989186A (en) * | 2015-04-29 | 2015-10-21 | 上海欧一安保器材有限公司 | Magnetic lock |
| CN206290117U (en) * | 2016-11-25 | 2017-06-30 | 长园共创电力安全技术股份有限公司 | A kind of axial lockset |
Also Published As
| Publication number | Publication date |
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| CN106677634A (en) | 2017-05-17 |
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