CN106847577B - It is universal can offset adaptive mechanical and electrical safety lock - Google Patents
It is universal can offset adaptive mechanical and electrical safety lock Download PDFInfo
- Publication number
- CN106847577B CN106847577B CN201710016767.7A CN201710016767A CN106847577B CN 106847577 B CN106847577 B CN 106847577B CN 201710016767 A CN201710016767 A CN 201710016767A CN 106847577 B CN106847577 B CN 106847577B
- Authority
- CN
- China
- Prior art keywords
- travel switch
- sliding slot
- position travel
- pedestal
- universal
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
- H01H3/166—Self-adjusting mountings, transmissions and the like
Landscapes
- Switch Cases, Indication, And Locking (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Abstract
The invention discloses it is a kind of it is universal can the adaptive mechanical and electrical safety lock of offset, for being locked or being unlocked to special equipment, mounting base including bottom-open in a rectangular parallelepiped shape, one end of the mounting base roof is provided with the sliding slot extended along its length, and the retaining mechanism for carrying out clamping limit to sliding slot is provided on the sliding slot;The other end of the mounting base roof is fixedly installed the pedestal in hollow square body shape, and bottom is provided with unlocked position travel switch in the pedestal, and the pedestal inner sidewall is provided with latched position travel switch;The unlocked position travel switch and latched position travel switch are electrically connected with the control system of special equipment.By rotation hand wheel driving locking level triggering latched position travel switch, perhaps the realization of unlocked position travel switch is locked or is unlocked to special equipment the present invention, easy to operate, quick.
Description
Technical field
The present invention relates to mechanical and electrical safety locking device, in particular to it is a kind of it is universal can the adaptive mechanical and electrical safety of offset lock.
Background technique
In recent years, special equipment Frequent Accidents, by different degrees of influence, some is set for the production for making people, life
Standby to be damaged, some even causes casualties.The safety of special equipment receives the extensive concern of society.
With the continuous promotion of people's material and culture level, people are also higher and higher to the security requirement of special equipment.
New-type special equipment often has the safety device being in various forms, and is broadly divided into electronic type, mechanical and electromechanical linkage formula.But
It is that pure electronic type and Purely mechanical be not due to interlocking, once often to will cause personal injury or equipment impaired for failure;And it is usual
Electromechanical interlock formula safety device generally there is its particularity, often special computer for special use, versatility be not strong.In particular, some spies
Kind equipment is due to its particularity, and same model yield is seldom, but derivative version huge number, if it is each model list
Only engineered safety features must cause the loss in terms of a large amount of man power and material.Therefore, a kind of versatile, safety is designed
Property high mechanical and electrical safety lock seem particularly important, but make slow progress up to now.
Summary of the invention
Present invention aim to provide it is a kind of it is universal can the adaptive mechanical and electrical safety lock of offset, safety lock design
Have can the sliding slot of automatic adjusument considerably increase the device as long as the special equipment in adjustable range can be used
Versatility;In addition, locking level can be driven to trigger latched position travel switch or unlocked position travel switch by rotation hand wheel,
Realization special equipment is locked or is unlocked, it is highly-safe, operation it is convenient.
To achieve the above object, designed by the present invention it is universal can offset adaptive mechanical and electrical safety lock, for spy
Kind equipment is locked or is unlocked, and one end of the mounting base including bottom-open in a rectangular parallelepiped shape, the mounting base roof is set
It is equipped with the sliding slot extended along its length, the retaining mechanism for carrying out clamping limit to sliding slot is provided on the sliding slot;
The other end of the mounting base roof is fixedly installed the pedestal in hollow square body shape, and bottom is provided with unlock in the pedestal
Position travel switch, the pedestal inner sidewall are provided with latched position travel switch;It is provided with and solves on the side wall of the pedestal
Lock position travel switch corresponding first tapped through hole is provided with and latched position travel switch phase on the roof of the pedestal
Corresponding second tapped through hole, the unlocked position travel switch and latched position travel switch with the control system of special equipment
System electrical connection;
It further include the packaged type lock handle for triggering unlocked position travel switch or latched position travel switch,
The lock handle includes handwheel and the locking level that connect with handwheel keyway, and the end of the locking level may pass through the first screw thread
Through-hole or the second tapped through hole protrude into pedestal with corresponding unlocked position travel switch or latched position travel switch
It abuts.In this way, sliding slot can be according to special equipment model automatic adjusument, as long as the special equipment in adjustable range can make
With the versatility of the device being considerably increased, and since it can carry out slidable adjustment, so required precision when to installation is not yet
It is high, it might even be possible to setoff installation, it is more convenient to use, quick.
Further, the retaining mechanism includes being vertically set on the guide post that can be slid along in sliding slot, being arranged in cunning
Consolidate with the clamping cap being oppositely arranged at the top of guide post and being arranged in below sliding slot be oriented to that column bottom is fixedly connected above slot
Fixed board, is provided with the lock-screw in portion therethrough between the clamping cap and guide post, the clamping cap passes through with guide post
It screws lock-screw and limit is clamped to sliding slot.In this way, to press by screwing lock-screw when safety lock needs to lock
Tight cap and guide post clamping limit sliding slot, and operation is convenient, using safe.
Further, the locking level is the rod-shaped knot of staged being made of thin straight-bar, threaded rod, thick straight-bar and boss bar
One end of structure, the thick straight-bar is fixedly connected by threaded rod with thin straight-bar, and the external screw thread of the threaded rod and the first screw thread are logical
Hole, the second tapped through hole internal screw thread match;The other end of the thick straight-bar is fixedly connected with the boss face of boss bar, described
Boss bar is fixedly connected with the hand wheel by keyway.Such composed structure forms the optimum combination that locking level realizes its function,
Latched position travel switch or unlocked position travel switch can be triggered by rotation hand wheel, then transmit signals to control system
System, realization are locked or are unlocked to special equipment.
Further, the diameter of section at the top of the guide post is greater than the width of sliding slot opening, and the clamping cap is circle
Clamping cap, top cross-section diameter are greater than the width of sliding slot opening.In this manner it is achieved that guide post and round clamping cap are to sliding slot
It is clamped.
Further, it is additionally provided with escape between the thick straight-bar and threaded rod, can guarantees screw thread when assembly in this way
The external screw thread of bar and the internal screw thread of the first tapped through hole, the second tapped through hole are engaged into place.
Further, one end outer rim that the threaded rod is connected with thin straight-bar is provided with circular arc chamfering.In this way, passing through circle
Arc transition reduces stress and concentrates, firmly excessive when avoiding assembling to cause to damage to locking level.
Further, the sliding slot is the sliding slot that opening is in oval shape.
Still further, the mounting cylinder for installing lock handle is vertically installed on the outer wall of the pedestal, the peace
The central axis of fitted tube is overlapped with the center line of the first tapped through hole.
Further, bottom is provided with the first fixation for being used to support fixed unlocked position travel switch in the pedestal
Seat, the pedestal inner sidewall are provided with the second fixing seat for being used to support fixedly locked position travel switch.
Compared with prior art, the present invention has the advantage that
First, mechanical and electrical safety lock of the invention have can automatic adjusument sliding slot, as long as the special type in adjustable range
Equipment can be used, and considerably increase the versatility of the device, and since it can carry out slidable adjustment, so when to installation
Required precision is not also high, it might even be possible to setoff installation, it is more convenient to use, quick.
Second, mechanical and electrical safety lock of the invention has retaining mechanism, when safety lock needs to lock by screwing locking screw
Nail so that clamping cap and guide post clamping sliding slot is limited, operation it is convenient, using safe.
Third, mechanical and electrical safety lock of the invention has locking level, latched position stroke can be triggered by rotation hand wheel and opened
Pass or unlocked position travel switch, then control system is transmitted signals to, realization is locked or is unlocked to special equipment.
Fourth, mechanical and electrical safety lock of the invention has a pair of of travel switch, electromechanical interlock can be carried out with locking level, make electromechanics
The status safety of safety lock is controllable.
Detailed description of the invention
Fig. 1 be it is a kind of it is universal can the structural schematic diagram of the adaptive mechanical and electrical safety lock of offset when unlocked;
Fig. 2 is structural schematic diagram of the Fig. 1 in lock state;
Fig. 3 is the schematic diagram of the section structure of retaining mechanism in Fig. 1;
Fig. 4 is the enlarged structure schematic diagram of locking level in Fig. 1;
Fig. 5 is the enlarged structure schematic diagram of pedestal in Fig. 1;
Fig. 6 is the schematic cross-sectional view when present invention applies to turntable;
Wherein: mounting base 1, sliding slot 2, retaining mechanism 3, pedestal 4, unlocked position travel switch 5, latched position travel switch
6, the first tapped through hole 7.1, the second tapped through hole 7.2, lock handle 8, handwheel 9, locking level 10, guide post 11, clamping cap 12,
Fixed plate 13, lock-screw 14, thin straight-bar 15, threaded rod 16, thick straight-bar 17, boss bar 18, escape 19, mounting cylinder 20,
One fixing seat 21, the second fixing seat 22, special equipment 23, rotary table top 24, synchronous pulley component 25, transmission shaft 26, motor
27, frame 28.
Specific embodiment
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
One kind shown in figure it is universal can offset adaptive mechanical and electrical safety lock, for being locked to special equipment 23
Or unlock, one end of the mounting base 1 including bottom-open in a rectangular parallelepiped shape, 1 roof of mounting base is provided with along its length
The sliding slot 2 of extension is provided with the retaining mechanism 3 for carrying out clamping limit to sliding slot 2 on sliding slot 2;1 roof of mounting base it is another
End is fixedly installed pedestal 4 in hollow square body shape, and bottom is provided with unlocked position travel switch 5 in pedestal 4, in pedestal 4
Side wall is provided with latched position travel switch 6;Corresponding with unlocked position travel switch 5 is provided on the side wall of pedestal 4
One tapped through hole 7.1 is provided with second tapped through hole 7.2 corresponding with latched position travel switch 6 on the roof of pedestal 4,
Unlocked position travel switch 5 and latched position travel switch 6 are electrically connected with the control system of special equipment 23;
It further include locking hand for triggering the packaged type of unlocked position travel switch 5 or latched position travel switch 6
Handle 8, lock handle 8 include handwheel 9 and the locking level 10 connecting with 9 keyway of handwheel, and the end of locking level 10 may pass through first
Tapped through hole 7.1 or the second tapped through hole 7.2 protrude into pedestal 4 with corresponding unlocked position travel switch 5 or lock
Position travel switch 6 abuts.
In above-mentioned technical proposal, retaining mechanism 3 includes being vertically set on the guide post 11 that can be slid along in sliding slot 2, setting
Set above the sliding slot 2 with the clamping cap 12 being oppositely arranged at the top of guide post 11 and be arranged below sliding slot 2 and 11 bottom of guide post
The fixed plate 13 that portion is fixedly connected is provided with the lock-screw 14 in portion therethrough between clamping cap 12 and guide post 11, compress
Cap 12 is clamped limit to sliding slot 2 by screwing lock-screw 14 with guide post 11.The diameter of section at 11 top of guide post is big
In the width that sliding slot 2 is open.Clamping cap 12 is round clamping cap, and top cross-section diameter is greater than the width that sliding slot 2 is open.This
Sample, sliding slot 2 can slide automatic adjusument along guide post 11 according to special equipment model, as long as the special equipment in adjustable range
It can be used, considerably increase the versatility of the device, and since it can carry out slidable adjustment, so precision when to installation
It is required that also not high, it might even be possible to setoff installation, it is more convenient to use, quick.
In above-mentioned technical proposal, locking level 10 is made of thin straight-bar 15, threaded rod 16, thick straight-bar 17 and boss bar 18
One end of staged rod-like structure, thick straight-bar 17 is fixedly connected by threaded rod 16 with thin straight-bar 15, the external screw thread of threaded rod 16
Match with the internal screw thread of the first tapped through hole 7.1, the second tapped through hole 7.2;The other end of thick straight-bar 17 and boss bar 18
Boss face is fixedly connected, and boss bar 18 is fixedly connected by keyway with handwheel 9.It is additionally provided between thick straight-bar 17 and threaded rod 16
Escape 19.One end outer rim that threaded rod 16 is connected with thin straight-bar 15 is provided with circular arc chamfering.Such composed structure is formed
Locking level 10 realizes the optimum combination of its function, can pass through rotation hand wheel 9 and trigger latched position travel switch 6 or unlock
Position travel switch 5, then control system is transmitted signals to, realization is locked or is unlocked to special equipment.
In above-mentioned technical proposal, sliding slot 2 is the sliding slot that opening is in oval shape.It is vertically arranged on the outer wall of pedestal 4 useful
In the mounting cylinder 20 of installation lock handle 8, the central axis of mounting cylinder 20 is overlapped with the center line of the first tapped through hole 7.1.Base
Bottom is provided with the first fixing seat 21 for being used to support fixed unlocked position travel switch 5 in seat 4, and 4 inner sidewall of pedestal is provided with
It is used to support the second fixing seat 22 of fixedly locked position travel switch 6.
The working principle of the invention: mounting base 1 is fixed on to the operating position of special equipment by fixed plate 13, works as special type
When equipment needs to lock, by locking level 10 pass through special equipment specific pin hole, while movement can automatic adjusument sliding slot 2,
It is directed at locking level 10 and in the second tapped through hole 7.2 for being inserted on pedestal 4, rotation hand wheel 9 locks locking level 10, completes
The mechanical caging of special equipment, even if having external force special equipment that can not operate at this time, while latched position travel switch 6
The end triggering of locked bar 10, control system receive lock instruction, and special equipment is electrically locked, and cannot be operated;
When special equipment needs to operate, locking level 10 is rotated and unclamps and extracts, the mechanical caging of special equipment at this time
It is released from, while latched position travel switch 6 is also released, the mounting cylinder 20 being inserted on pedestal 4 is logical across the first screw thread
Hole 7.1 is protruded into pedestal 4, and is rotated and tightened, and unlocked position travel switch 5 is locked the end triggering of bar 10, control system at this time
System receives unlock instruction, and special equipment is electrically unlocked, in operating condition;
When check lock lever 4 be not in lock or unlock position or operation it is lack of standardization do not trigger latched position travel switch 6 or
Any of unlocked position travel switch 5 switchs or device latched position travel switch 6 occurs and unlocked position stroke is opened
Close 5 two travel switches while triggering or when the failures such as not triggering simultaneously, control system will not unlock or lock special equipment,
But electrical system, which can be in, forbids operating condition, while control system sounds an alarm, and prompts information warning.
A kind of specific embodiment mode as shown in FIG. 6: the special type that mechanical and electrical safety of the present invention lock applies to turntable is set
Standby upper, which includes rotary table top 24, synchronous pulley component 25, transmission shaft 26, motor 27, frame 28.This can be sent out
Bright mechanical and electrical safety lock is mounted on the position that turntable deviates central axis, when turntable needs to lock, by locking level of the invention
10 from the pin hole of 24 edge of rotary table top insert under, screw, latched position travel switch 6 trigger, the machinery of turntable, electrical part
Divide locked;When turntable needs to operate, locking level 10 of the invention is screwed out, be inserted into mounting cylinder 20 and is screwed, is unlocked
Position travel switch 5 triggers, and machinery, the electric part of turntable are unlocked, and turntable enters state to be launched, control system
Enabled instruction reach after, rotary table top will start to rotate.After motor 27 starts, synchronous pulley component 25 operates therewith, band
Dynamic transmission shaft 26 rotates, so that rotary table top 24 be made to rotate.Because having transmission mechanism etc. at turntable center, so safety locking fills
It sets and is not suitable for being mounted at center, simultaneously because each stall position cannot be guaranteed always in same position when turntable stops
Point, design, installation of safe locking device etc. there is a problem of very big, and this problem can be solved in the present invention.
The above description is merely a specific embodiment, it is noted that anyone skilled in the art exists
Disclosed herein technical scope in, any changes or substitutions that can be easily thought of, should all cover protection scope of the present invention it
It is interior.
Claims (10)
1. it is a kind of it is universal can the adaptive mechanical and electrical safety lock of offset, for special equipment (23) to be locked or is unlocked,
It is characterized by comprising the mounting base of bottom-open in a rectangular parallelepiped shape (1), one end of mounting base (1) roof is provided with edge
The sliding slot (2) that its length direction extends is provided with the locking machine for carrying out clamping limit to sliding slot (2) on the sliding slot (2)
Structure (3);The other end of mounting base (1) roof is fixedly installed the pedestal (4) in hollow square body shape, the pedestal (4)
Interior bottom is provided with unlocked position travel switch (5), and pedestal (4) inner sidewall is provided with latched position travel switch (6);Institute
It states and is provided with the first tapped through hole (7.1) corresponding with unlocked position travel switch (5), the base on the side wall of pedestal (4)
The second tapped through hole (7.2) corresponding with latched position travel switch (6), the solution lock-bit are provided on the roof of seat (4)
It sets travel switch (5) and latched position travel switch (6) is electrically connected with the control system of special equipment (23);
It further include locking hand for triggering the packaged type of unlocked position travel switch (5) or latched position travel switch (6)
Handle (8), the lock handle (8) include handwheel (9) and the locking level (10) that connect with handwheel (9) keyway, the locking level
(10) end may pass through the first tapped through hole (7.1) or the second tapped through hole (7.2) protrude into pedestal (4) with it is corresponding
Unlocked position travel switch (5) or latched position travel switch (6) abut.
2. it is according to claim 1 it is universal can offset adaptive mechanical and electrical safety lock, it is characterised in that: the locking machine
Structure (3) includes being vertically set on the guide post (11) that can be slid along in sliding slot (2), setting in sliding slot (2) top and guide post
(11) clamping cap (12) and setting that top is oppositely arranged are consolidated below sliding slot (2) with what guide post (11) bottom was fixedly connected
Fixed board (13) is provided with the lock-screw (14) in portion therethrough, the pressure between the clamping cap (12) and guide post (11)
Tight cap (12) is clamped limit to sliding slot (2) by screwing lock-screw (14) with guide post (11).
3. it is according to claim 1 it is universal can offset adaptive mechanical and electrical safety lock, it is characterised in that: the locking level
It (10) is the staged rod-like structure being made of thin straight-bar (15), threaded rod (16), thick straight-bar (17) and boss bar (18), it is described
One end of thick straight-bar (17) is fixedly connected by threaded rod (16) with thin straight-bar (15), the external screw thread of the threaded rod (16) and the
One tapped through hole (7.1), the second tapped through hole (7.2) internal screw thread match;The other end and boss of the thick straight-bar (17)
The boss face of bar (18) is fixedly connected, and the boss bar (18) is fixedly connected by keyway with handwheel (9).
4. it is according to claim 2 it is universal can offset adaptive mechanical and electrical safety lock, it is characterised in that: the guide post
(11) diameter of section at the top of is greater than the width of sliding slot (2) opening.
5. it is according to claim 2 it is universal can offset adaptive mechanical and electrical safety lock, it is characterised in that: the clamping cap
It (12) is round clamping cap, top cross-section diameter is greater than the width of sliding slot (2) opening.
6. it is according to claim 3 it is universal can offset adaptive mechanical and electrical safety lock, it is characterised in that: the thick straight-bar
(17) it is additionally provided between threaded rod (16) escape (19).
7. it is according to claim 3 it is universal can offset adaptive mechanical and electrical safety lock, it is characterised in that: the threaded rod
(16) one end outer rim being connected with thin straight-bar (15) is provided with circular arc chamfering.
8. it is according to claim 1 or 2 or 3 it is universal can offset adaptive mechanical and electrical safety lock, it is characterised in that: it is described
Sliding slot (2) is the sliding slot that opening is in oval shape.
9. it is according to claim 1 or 2 or 3 it is universal can offset adaptive mechanical and electrical safety lock, it is characterised in that: it is described
The mounting cylinder (20) for installing lock handle (8), the center of the mounting cylinder (20) are vertically installed on the outer wall of pedestal (4)
Axis is overlapped with the center line of the first tapped through hole (7.1).
10. it is according to claim 1 or 2 or 3 it is universal can offset adaptive mechanical and electrical safety lock, it is characterised in that: institute
It states pedestal (4) interior bottom and is provided with the first fixing seat (21) for being used to support fixed unlocked position travel switch (5), the pedestal
(4) inner sidewall is provided with the second fixing seat (22) for being used to support fixedly locked position travel switch (6).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710016767.7A CN106847577B (en) | 2017-01-10 | 2017-01-10 | It is universal can offset adaptive mechanical and electrical safety lock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710016767.7A CN106847577B (en) | 2017-01-10 | 2017-01-10 | It is universal can offset adaptive mechanical and electrical safety lock |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106847577A CN106847577A (en) | 2017-06-13 |
CN106847577B true CN106847577B (en) | 2019-01-01 |
Family
ID=59118496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710016767.7A Active CN106847577B (en) | 2017-01-10 | 2017-01-10 | It is universal can offset adaptive mechanical and electrical safety lock |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106847577B (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5717178A (en) * | 1996-02-06 | 1998-02-10 | Eaton Corporation | Locking mechanism for electrical switches |
CN104196373B (en) * | 2014-08-26 | 2016-09-07 | 杭州优迈科技有限公司 | A kind of rail transportation half-height safety door door lock and half-height safety door |
-
2017
- 2017-01-10 CN CN201710016767.7A patent/CN106847577B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN106847577A (en) | 2017-06-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU2013347682B2 (en) | Energy-saving magnetic lock | |
CN101748929A (en) | Adjustable cylindrical lock set | |
CN107045958B (en) | A kind of operating mechanism of rotary switch | |
US20170122008A1 (en) | Safety locking mechanism for lockset | |
CN203238962U (en) | Screen safety device, hopper and pumping equipment | |
CN109799867A (en) | A kind of control handle | |
CN106847577B (en) | It is universal can offset adaptive mechanical and electrical safety lock | |
CN203669569U (en) | Novel adjustable locking mechanism for helicopter | |
CN102881486B (en) | Interlocking mechanism of medium pressure switchgear | |
CN107054168B (en) | A kind of automotive seat adjustment structure | |
KR101874254B1 (en) | Hinge for Opening and Closing a Door | |
CN201033977Y (en) | Intelligent burglar-proof door lock | |
CN202905516U (en) | Medium voltage switch cabinet interlocking mechanism | |
CN210761258U (en) | Locking mechanical system and unmanned aerial vehicle cabin | |
CN211605009U (en) | Misoperation prevention knob switch | |
CN104653415B (en) | Anti-locking screw mechanism and locking device for rotating part of wind driven generator | |
DK173866B1 (en) | Electric operator unit for windows | |
CN205153834U (en) | Automatic safe of unblanking | |
KR101874255B1 (en) | Hinge for Opening and Closing a Door | |
CN213654514U (en) | Magnetic lock | |
CN220605313U (en) | Safe type switch board | |
CN205476973U (en) | A electronic lock for express delivery cabinet | |
CN216949909U (en) | Lock with violence-proof opening function | |
CN203905621U (en) | Door handle mechanism with feedback | |
CN219910352U (en) | Safety lock of power distribution cabinet |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |