CN108979326A - A kind of second level lockset and safety box or safe deposit box equipped with second level lockset - Google Patents
A kind of second level lockset and safety box or safe deposit box equipped with second level lockset Download PDFInfo
- Publication number
- CN108979326A CN108979326A CN201810987890.8A CN201810987890A CN108979326A CN 108979326 A CN108979326 A CN 108979326A CN 201810987890 A CN201810987890 A CN 201810987890A CN 108979326 A CN108979326 A CN 108979326A
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- China
- Prior art keywords
- inserted sheet
- lock
- level lockset
- level
- connector lug
- Prior art date
- 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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- 230000000694 effects Effects 0.000 claims abstract description 18
- 208000006558 Dental Calculus Diseases 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 3
- 208000032370 Secondary transmission Diseases 0.000 abstract description 11
- 208000032369 Primary transmission Diseases 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000004049 embossing Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
- E05B35/08—Locks for use with special keys or a plurality of keys ; keys therefor operable by a plurality of keys
- E05B35/12—Locks for use with special keys or a plurality of keys ; keys therefor operable by a plurality of keys requiring the use of two keys, e.g. safe-deposit locks
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/02—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means
- E05B47/026—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means the bolt moving rectilinearly
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
- E05B49/002—Keys with mechanical characteristics, e.g. notches, perforations, opaque marks
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/0075—Locks or fastenings for special use for safes, strongrooms, vaults, fire-resisting cabinets or the like
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Lock And Its Accessories (AREA)
Abstract
The present invention relates to the safety boxs or safe deposit box of a kind of second level lockset for being able to achieve secondary transmission and application the second level lockset.This second level lockset includes main lock, master key and emergency key, main lock includes lock body, lock core and driving member, lock core includes plug body, it is characterized by: plug body is equipped with the first inserting-plate hole and the second inserting-plate hole, the first inserted sheet is equipped in first inserting-plate hole, it is equipped with the second inserted sheet in second inserting-plate hole, is equipped in the plug body by the first elastic component that the first inserted sheet acts on outward and the second elastic component for acting on the second inserted sheet outward.This second level lockset has two gear stages being independent of each other, and two gear stages are able to achieve different functions.Using this second level lockset, the digital phase-locking of safety box or safe deposit box and its opening relationships can be made, so that safety box or safe deposit box be made to have double insurance effect.
Description
Technical field
The present invention relates to a kind of locksets and safety box/safe deposit box, and in particular to a kind of lockset with secondary function and
Using the safety box or safe deposit box of the second level lockset.
Background technique
All there is general insurance case/safe deposit box digital phase-locking and emergency machine to lock at present, however both locksets are all independent
Work: as long as input password, digital phase-locking unlock, such door can be opened；If digital phase-locking breaks down, need to only insert a key into
Emergency machine lock unlock, such door can also be opened.It will be apparent that there are security risks for this safety box/safe deposit box, as long as others remembers
Firmly password can open security door；Or others has key, can also open security door.
Summary of the invention
In view of the shortcomings of the prior art, present invention innovation provide a kind of second level lockset for being able to achieve secondary transmission with
And safety box or safe deposit box using the second level lockset.
This second level lockset includes main lock, master key and emergency key, the main lock include lock body, lock core and
Driving member, the lock core include plug body, it is characterised in that: the plug body is equipped with the first inserting-plate hole and second and inserts
Film perforation is equipped with the first inserted sheet in first inserting-plate hole, is equipped with the second inserted sheet in second inserting-plate hole, in the plug body
Equipped with the first elastic component for acting on the first inserted sheet outward and the second elastic component for acting on the second inserted sheet outward, the lock body
Inner wall is equipped with the first card slot and the second card slot, and first card slot, which has, limits the length that the first inserted sheet rotates, and described second
Card slot has the length for allowing the second inserted sheet to turn an angle；The master key and emergency key match with lock core, the master
The tartar of key has the acting surface for allowing the first inserted sheet to come out from the first card slot, and the tartar of the emergency key, which has, allows second to insert
The acting surface that piece comes out from the second card slot.
First inserted sheet and the second inserted sheet all have the slot for allowing key to pass through, and first inserted sheet has and master key
The service portion had an effect of acting surface, second inserted sheet has the service portion having an effect with the acting surface of emergency key.
First inserted sheet has the extension having an effect with the first elastic component, and second inserted sheet has and the second bullet
The extension that property part is had an effect.
The lateral surface of the extension is the cambered surface to match with the inner wall of lock body.
First elastic component and the second elastic component are spring.
A kind of safety box or safe deposit box equipped with second level lockset includes security door and second level lockset recited above, institute
Security door is stated equipped with Password Input panel, it is characterised in that: it is connected with junction block on the lock body of the second level lockset, it is described to connect
Line seat is equipped with positive connector lug and negative connector lug, and the connection of the positive connector lug and negative connector lug is controlled with disconnection by driving member,
Plectrum is connected on the driving member, the plectrum is sequentially connected by connector and slide, and the slide is slidably arranged in guarantor
On dangerous door, it is connected with lock pin on the slide, the mobile motor drive component of control slide, the electricity are installed on the slide
Machine driving assembly, Password Input panel, positive connector lug, negative connector lug and power supply series connection.
Outside driving member, the positive connector lug is located in the first wiring hole of junction block the wiring cover for seat, and described first
Limit is equipped with the first contact head inwards in wiring hole, and the first spring is equipped between first contact head and positive connector lug, described
Negative connector lug is located in the second wiring hole of junction block, and limit is equipped with the second contact head inwards in second wiring hole, described
Between second contact head and negative connector lug be equipped with second spring, the driving member be equipped with power-off slot, first contact head with
One in second contact head acts on driving member, another is located in power-off slot.
The motor drive component includes motor, the first limit switch, the second limit switch and controls rotary head, described
First limit switch, the second limit switch and motor series connection, the motor and control rotary head transmission connection, the control rotary head tool
There is the first state acted on the first limit switch, the control rotary head has the second shape acted on the second limit switch
State.
There are two shifting block, the connector covers outside driving member the plectrum tool, and the connector is equipped with column cap, described
Column cap is located between two shifting blocks of plectrum.
According to a kind of second level lockset provided by the invention, there are two the gear stages being independent of each other for tool, and two gear stages can be real
Existing different function.Using this second level lockset, the digital phase-locking of safety box or safe deposit box and its opening relationships can be made, to make to protect
Dangerous case or safe deposit box have double insurance effect.
Detailed description of the invention
Fig. 1 is perspective view of the invention；
Fig. 2 is main view of the invention；
Fig. 3 is side view (removing lock body) of the invention；
Fig. 4 is the structural schematic diagram that key and inserted sheet are had an effect；
Fig. 5 is the main view of inserted sheet；
Fig. 6 is the cross-sectional view in Fig. 2 along the direction A-A；
Fig. 7 is the cross-sectional view in Fig. 2 along the direction B-B；
Fig. 8 is the action process figure of the first inserted sheet and the second inserted sheet；
Fig. 9 is the security door for being equipped with second level lockset；
Figure 10 is the perspective view of secondary latch concrete application；
Figure 11 is the cross-sectional view in Figure 10 along the direction C-C；
Figure 12 is the safety box for being equipped with second level lockset or the circuit diagram of safe deposit box.
Specific embodiment
As shown in Figures 1 and 2, this second level lockset includes main lock 1, master key 3 and emergency key 4；Main lock 1 and electricity
Son lock is mounted on the door of safe deposit box or safety box, wherein main lock 1 is mechanical lock.This second level lockset is due to secondary transmission
Function, and a variety of usage modes are able to achieve by secondary transmission function.
The primary structure and working principle of second level lockset are first introduced below, then introduce two kinds of users of this second level lockset
Formula.
As shown in Fig. 3-Fig. 7, the main lock 1 of second level lockset includes lock body 10, lock core 11 and driving member 12, and lock core 11
Include plug body 110, the first inserting-plate hole and the second inserting-plate hole are equipped in plug body 110, is set in the first inserting-plate hole
There is the first inserted sheet 5, the second inserted sheet 6 is equipped in the second inserting-plate hole, is in addition equipped in plug body 110 first inserted sheet 5 is past
(the first elastic component and the second elastic component are equal with the second elastic component for acting on the second inserted sheet 6 outward for first elastic component of outer effect
For spring), the first card slot 101 and the second card slot 102 are equipped on the inner wall of lock body 10, the first card slot 101 has limitation first
The length (i.e. not being able to rotate after in the first inserted sheet 5 the first card slot 101 of insertion) that inserted sheet 5 rotates, the second card slot 102, which has, allows second
The length (i.e. being able to rotate certain angle after in the second card slot of the second inserted sheet 6 insertion 102) that inserted sheet 6 turns an angle；Master key 3
Match with lock core 11 with emergency key 4, the tartar of master key 3 has the function of that the first inserted sheet 5 is allowed to come out from the first card slot 101
Face 7, the tartar of emergency key 4 have the acting surface 7 for allowing the second inserted sheet 6 to come out from the second card slot 102.
The working principle of this second level lockset is as follows: as shown in figure 8, when being in locked state (in figure), first inserts
Piece 5 is inserted in the first card slot 101 of lock body 10 under the action of the first elastic component, effect of second inserted sheet 6 in the second elastic component
Under be inserted in the second card slot 102 of lock body 10, in addition the fixture block of lock core 11 is stuck in lock body 10 that (fixture block is the prior art, is not drawn
Out), lock 1 main in this way is in above-mentioned state；When needing to open on main lock (in figure), master key 3 is inserted into lock core 11, by
There is the acting surface 7 for allowing the first inserted sheet 5 to come out from the first card slot 101, therefore the first inserted sheet 5 from first in the tartar of master key 4
Card slot 101 comes out, and the second inserted sheet 6 is able to rotate certain angle in the second card slot 102 that (such as 210 °, such master key 3 can only
Turn 210 °), while fixture block also eliminates locked state, when rotating master key 3 in this way, lock core 11 can turn an angle, thus
Realize level-one rotation；When extracting master key, (tartar of master key 3 and emergency key 4 is substantially all one when being inserted into emergency key 4
Sample, only 7 position of acting surface of tartar front end is different), allow the second inserted sheet 6 from the since the tartar of emergency key 4 has
The acting surface 7 that two draw-in groove 102 comes out, thus the second inserted sheet 6 also comes out (in figure from the second card slot 102), such emergency key
4 are just able to achieve rotation, and such lock core 11 just can turn over certain angle again, be achieved in secondary transmission.
Make inserted sheet mobile when in order to enable key to be inserted into, the first inserted sheet 5 and the second inserted sheet 6 of the invention, which all has, allows key
The slot 2 that spoon passes through, the first inserted sheet 5 have the service portion 20 having an effect with the acting surface 7 of master key 3, and the second inserted sheet 6 has
The service portion 20 having an effect with the acting surface 7 of emergency key 4.Corresponding key be inserted into when, by its embossing acting surface 7 with
The service portion 20 of inserted sheet is had an effect, to realize the movement of inserted sheet.
In addition, the first inserted sheet 5 has the extension 21 had an effect with the first elastic component, the second inserted sheet 6 also has and the
The extension 21 that two elastic components are had an effect.One end of elastic component acts in plug body 110, and the other end acts against extension
In portion 21.Inserted sheet is just stuck in card slot under the action of the elastic member in this way.The lateral surface of extension 21 is the inner wall with lock body 10
The cambered surface to match.Inserted sheet just can be bonded more preferable with lock body 10 in this way, to improve inserted sheet stability.
Two kinds of usage modes of second level lockset and digital phase-locking cooperation are described below.
The first usage mode: primary transmission realizes the locking of main lock, and secondary transmission realizes the emergency opening of digital phase-locking.
When master key, which is inserted into, to be rotated, driving member realizes primary transmission, so that the main lock pin for being driven main lock is mobile to realize unlock, and it is digital
It locks corresponding lock pin and realizes unlock by inputting password in input panel, when digital cipher lock failure can not be normally-open
When, it is inserted into emergency key, by the secondary transmission of second level lockset, mobile realize of the corresponding lock pin of digital phase-locking is driven and unlocks.In this way,
Second level lockset and digital phase-locking can play the role of double insurance, and secondary latch has the emergency function for opening digital phase-locking, thus
It combines two kinds of locksets dexterously, solves existing safety box.For this usage mode, two
The connection relationship of grade lockset and digital phase-locking is relatively simple, and only the driving member of second level lockset is sequentially connected with main lock pin, and with
The corresponding lock pin transmission connection of digital phase-locking, therefore the connection relationship of second level lockset Yu other transmission mechanisms is not further described.
Second usage mode: primary transmission is for connecting the driving circuit of digital phase-locking, and secondary transmission realizes digital phase-locking
Emergency opening.
This usage mode is complex in structure, first introduces the structure of this usage mode below.As shown in figure 9,
Second level lockset is mounted on security door 8, and security door 8 is equipped with Password Input panel (not shown), on the lock body 10 of second level lockset
It is connected with junction block 9, junction block 9 is equipped with positive connector lug 90 and negative connector lug 91, the company of positive connector lug 90 and negative connector lug 91
Make and break is opened to be controlled by driving member 12, and plectrum 87 is connected on driving member 12, and plectrum 87 is driven by connector 88 and slide 80
Connection, slide 80 are slidably arranged on security door 8, and lock pin 81 is connected on slide 80, and control slide is equipped on slide 80 and is moved
Dynamic motor drive component, as shown in figure 12, motor drive component, Password Input panel, positive connector lug 90, negative connector lug 91 with
And power supply series connection.
In use, entering master key in second level lockset interpolation and rotating, primary transmission is realized, at this moment driving member controls positive wiring
First 90 connect with negative connector lug 91, correct password are then inputted on Password Input panel 99, motor drive component can drive
Dynamic slide 80 is mobile with lock pin 81, and such lock pin 81 is just able to achieve unlock, due to opening safety door need master key with it is correct
Password Input, therefore have the function of double insurance, anti-theft capability is stronger；And if digital phase-locking breaks down when can not unlock,
It is inserted into emergency key rotation on second level lockset, realizes secondary transmission, plectrum 87 is driven by driving member 12 and connector 88 drives
Slide 80 is mobile, and such lock pin 81 is just able to achieve emergency unlock.
In order to enable driving member 12 to control the connecting and disconnecting of positive connector lug 90 with negative connector lug 91, the present invention is by wiring
9 sets of seat is outside driving member 12, and as shown in Figure 10 and Figure 11, positive connector lug 90 is located in the first wiring hole of junction block 9, and first connects
A part can only at most be stretched out equipped with the first contact head 92(i.e. the first contact head 92 inward by limiting inwards in string holes), the first contact
It is equipped with the first spring between first 92 and positive connector lug 90, negative connector lug 91 is located in the second wiring hole of junction block 9, the second wiring
A part can only at most be stretched out equipped with the second contact head 93(i.e. the second contact head 93 inward by limiting inwards in hole), the second contact head
Second spring is equipped between 93 and negative connector lug 91, driving member 12 is equipped with power-off slot 120, and the first contact head 92 is contacted with second
One in first 93 acts on driving member 12, another is located in power-off slot 120.When inactive primary transmission, first is connect
Contact 92 and the second contact head 93 are in above-mentioned state, and positive connector lug 90 is in an off state with negative connector lug 91, work as master key
When starting primary transmission, driving member 12 is rotated, and power-off slot 120 turns over an angle, the first contact head 92 and the second contact head 93
It is contacted with driving member 12, connector lug 90 positive in this way is connected with negative connector lug 91, and motor drive component is powered, defeated in password in this way
Enter and input correct password on panel, motor drive component can drive slide 80 and lock pin 81 mobile, and such lock pin 81 just can
Realize unlock.
As shown in figure 9, motor drive component include motor 83, the first limit switch 85, the second limit switch 86 and
Rotary head 84 is controlled, the first limit switch 85, the second limit switch 86 and motor 83 are connected, and motor 83 and the control transmission of rotary head 84 connect
It connects, when motor 83, which is driven forward control rotary head 84, to be rotated and turn over certain angle, control rotary head 84 acts on the first limit and opens
It closes on 85, such motor 83 just stops driving, and slide 80 just stops movement, and lock pin 81 is locked；It is controlled when motor 83 is driven reverse
When rotary head 84 rotates and turns over certain angle, control rotary head 84 is acted on the second limit switch 86, and such motor 83 just stops
Driving, slide 80 just stop movement, and lock pin 81 unlocks.
Finally it is worth mentioning that in order to enable plectrum 87 to be applicable in secondary transmission, there are two the tools of plectrum 87 of the invention
Shifting block 870, and by 88 sets of connector outside driving member 12, connector 88 is equipped with column cap 880, which is located at plectrum
Between 87 two shifting blocks 870.When primary transmission, plectrum 87 only turns over certain angle, will not act on connector 88
On, and positive connector lug 90 is connected with negative connector lug 91 at this time；When secondary transmission, the shifting block 870 of plectrum 87 acts on connector
On 88 column cap 880, at this moment connector 88 is rotated, and connector 88 will pass through linking arm 89 and drive the mobile (linking arm of slide 80
89 one end are hinged on connector 88, and the other end is hinged on slide 80), to realize that lock pin unlocks.
Claims (9)
1. a kind of second level lockset, includes main lock (1), master key (3) and emergency key (4), the main lock (1) includes lock
Body (10), lock core (11) and driving member (12), the lock core (11) include plug body (110), it is characterised in that: described
Plug body (110) is equipped with the first inserting-plate hole and the second inserting-plate hole, is equipped with the first inserted sheet (5) in first inserting-plate hole, institute
It states in the second inserting-plate hole and is equipped with the second inserted sheet (6), be equipped in the plug body (110) and to act on the first inserted sheet (5) outward
First elastic component and the second elastic component for acting on the second inserted sheet (6) outward, the inner wall of the lock body (10) are equipped with the first card
Slot (101) and the second card slot (102), first card slot (101) have the length of limitation the first inserted sheet (5) rotation, and described the
Two draw-in groove (102) has the length for allowing the second inserted sheet (6) to turn an angle；The master key (3) and emergency key (4) with
Lock core (11) matches, and the tartar of the master key (3) has the acting surface for allowing the first inserted sheet (5) to come out from the first card slot (101)
(7), the tartar of the emergency key (4) has the acting surface (7) for allowing the second inserted sheet (6) to come out from the second card slot (102).
2. a kind of second level lockset according to claim 1, it is characterised in that: first inserted sheet (5) and the second inserted sheet (6)
The slot (2) for allowing key to pass through is all had, first inserted sheet (5) is had an effect with the acting surface (7) with master key (3)
Service portion (20), second inserted sheet (6) have the service portion (20) having an effect with the acting surface (7) of emergency key (4).
3. a kind of second level lockset according to claim 2, it is characterised in that: first inserted sheet (5) has and the first bullet
Property the extension (21) had an effect of part, second inserted sheet (6) has the extension (21) having an effect with the second elastic component.
4. a kind of second level lockset according to claim 3, it is characterised in that: the lateral surface of the extension (21) be and lock
The cambered surface (22) that the inner wall of body (10) matches.
5. a kind of second level lockset according to claim 1, it is characterised in that: first elastic component and the second elastic component are equal
For spring.
It include security door and second level lockset described in claim 1 6. a kind of safety box or safe deposit box equipped with second level lockset,
The security door is equipped with Password Input panel (99), it is characterised in that: is connected with and connects on the lock body (10) of the second level lockset
Line seat (9), the junction block (9) are equipped with positive connector lug (90) and negative connector lug (91), and the positive connector lug (90) connects with negative
The connection and disconnection of the end of a thread (91) are controlled by driving member (12), are connected with plectrum (87), the plectrum on the driving member (12)
(87) it is sequentially connected by connector (88) and slide (80), the slide (80) is slidably arranged on security door (8), the cunning
It is connected with lock pin (81) on seat (80), the mobile motor drive component of control slide, the electricity is installed on the slide (80)
Machine driving assembly, Password Input panel, positive connector lug (80), negative connector lug (81) and power supply series connection.
7. a kind of safety box or safe deposit box equipped with second level lockset according to claim 6, it is characterised in that: the wiring
Seat (9) cover driving member (12) outside, the positive connector lug (90) is located in the first wiring hole of junction block (9), and described first connects
Limit is equipped with the first contact head (92) inwards in string holes, and first is equipped between first contact head (92) and positive connector lug (90)
Spring, the negative connector lug (91) are located in the second wiring hole of junction block (9), and limit is equipped with inwards in second wiring hole
Second contact head (93) is equipped with second spring, the driving member between second contact head (93) and negative connector lug (91)
(12) it is equipped with power-off slot (120), one in first contact head (92) and the second contact head (93) acts on driving member
(12) on, another is located in power-off slot (120).
8. a kind of safety box or safe deposit box equipped with second level lockset according to claim 6 or 7, it is characterised in that: described
Motor drive component includes motor (83), the first limit switch (85), the second limit switch (86) and controls rotary head (84),
First limit switch (85), the second limit switch (86) and motor (83) series connection, the motor (83) and control rotary head
(84) it is sequentially connected, control rotary head (84) has the first state acted on the first limit switch (85), the control
Rotary head (84) has the second state acted on the second limit switch (86).
9. a kind of safety box or safe deposit box equipped with second level lockset according to claim 20, it is characterised in that: described group
Piece (87) tool there are two shifting block (870), the connector (88) cover driving member (12) outside, the connector (88) is equipped with column
Head (880), the column cap (880) are located between two shifting blocks (870) of plectrum (87).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810987890.8A CN108979326B (en) | 2018-08-28 | 2018-08-28 | Secondary lock and safe or safe box with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810987890.8A CN108979326B (en) | 2018-08-28 | 2018-08-28 | Secondary lock and safe or safe box with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108979326A true CN108979326A (en) | 2018-12-11 |
| CN108979326B CN108979326B (en) | 2023-11-03 |
Family
ID=64546675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810987890.8A Active CN108979326B (en) | 2018-08-28 | 2018-08-28 | Secondary lock and safe or safe box with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108979326B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942995A (en) * | 2021-01-31 | 2021-06-11 | 温州威泰锁业有限公司 | Double-safety lock bolt device |
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| CN108979326B (en) | 2023-11-03 |
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