CN108716309A - The door latch structure of handle idle running - Google Patents
The door latch structure of handle idle running Download PDFInfo
- Publication number
- CN108716309A CN108716309A CN201810475356.9A CN201810475356A CN108716309A CN 108716309 A CN108716309 A CN 108716309A CN 201810475356 A CN201810475356 A CN 201810475356A CN 108716309 A CN108716309 A CN 108716309A
- Authority
- CN
- China
- Prior art keywords
- locking bolt
- lock tongue
- handle
- runner
- lock
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B3/00—Fastening knobs or handles to lock or latch parts
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/10—Bolts of locks or night latches
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
-
- 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
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0057—Feeding
-
- 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
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0057—Feeding
- E05B2047/0058—Feeding by batteries
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
- Gates (AREA)
Abstract
The technical issues of the present invention relates to a kind of door latch structures of handle idle running to solve easy fracture at handle in the prior art and locking bolt control mechanism link position.When using door latch structure of the invention, when towards enabling direction swing handle, handle runner can rotate therewith, and protrusion is stirred by double wedge and is moved therewith, locking bolt runner i.e. can be around the pivot axis of itself and lock body, the movement of locking bolt runner is transferred to locking bolt sliding block through locking bolt connecting rod makes its retraction, that is, realizes unlocking bolt.It can be disengaged with protrusion after double wedge turns over certain angle, when being rotated further by handle, handle runner can dally, and locking bolt runner will not rotate therewith；Compressed spring can drive locking bolt to extend out to reset condition and realize the locking of locking bolt simultaneously, and locking bolt runner can go to reset condition therewith naturally.It removes after exerting a force to handle, extension spring can drive handle runner to return back to the home position that double wedge is abutted with protrusion, prepare for unlocking bolt next time.
Description
Technical field
The present invention relates to the door latch structures of handle idle running.
Background technology
Door lock mounted on a door is the important barrier for ensureing property and personal secrets, and common door lock includes mainly lock tongue
Control mechanism and locking bolt control mechanism two parts, lock tongue control mechanism are driven by the spinning force of key to drive the flexible fortune of lock tongue
Dynamic, locking bolt control mechanism is driven by the spinning force of handle to drive locking bolt stretching motion.When excessive to the torque of handle application
It can be broken at handle and locking bolt control mechanism link position, and influence the normal use of door lock.
Invention content
The purpose of the present invention is to provide a kind of door latch structures of handle idle running to solve handle in the prior art and lock
At bolt control mechanism link position the technical issues of easy fracture.
To achieve the above object, the door latch structure of handle idle running of the invention uses following technical scheme：
The door latch structure of handle idle running, including lock body are equipped with locking bolt control mechanism in lock body, it is characterised in that：Locking bolt control
Mechanism processed includes the handle runner being sequentially arranged, locking bolt runner, locking bolt connecting rod, locking bolt sliding block and locking bolt, handle runner and locking bolt
Runner is rotatably arranged on lock body, and locking bolt runner, locking bolt connecting rod and locking bolt sliding block together constitute slider-crank mechanism, handle
Axis is fixed on handle runner to drive its rotation, and locking bolt sliding block is for driving locking bolt stretching motion；It takes turns the part of handle runner
Double wedge is offered on face, and the protrusion for coordinating with the double wedge, normality lower raised teeth and protrusion are offered on locking bolt runner
It abuts, locking bolt runner rotates with handle runner and drives lock within the period of double wedge and protrusion cooperation when swing handle runner
Bolt slide retraction, the idle running of remaining time Internal handle runner, are additionally provided between lock body and locking bolt sliding block for driving locking bolt sliding block
The compressed spring for replying original stretching state is provided between handle runner and lock body for driving handle runner to reply raw bits
The extension spring set.
The locking bolt sliding block is the locking bolt gear that is arranged on lock body of guiding movement, locking bolt control mechanism further include for
The locking bolt rack of the locking bolt gear engagement, the locking bolt are fixed on locking bolt rack with flexible with locking bolt rack synchronous.
Lock tongue control mechanism is installed in lock body, lock tongue control mechanism include the lock tongue shaft being sequentially arranged, lock tongue runner,
Lock tongue connecting rod, lock tongue sliding block and lock tongue, lock tongue shaft are rotatably arranged on lock body, and offer be inserted into for key to drive thereon
Its lockhole rotated, lock tongue runner are assembled with lock tongue shaft rotation stop, and lock tongue slider guide is mounted on lock body, lock tongue runner, lock
Tongue connecting rod and lock tongue sliding block together constitute slider-crank mechanism, and lock tongue sliding block is for driving lock tongue stretching motion.
Lazy-tongs are provided in lock body, lazy-tongs include drive link and drive disk, and one end of drive link is hinged
On drive disk, the other end be hinged on locking bolt sliding block, drive disk, drive link, locking bolt sliding block and lock body constitute third group
Slider-crank mechanism, drive disk by unilateral bearing be sleeved on the peripheral surface of lock tongue shaft in lock tongue shaft towards unlocking direction
It is rotated with lock tongue shaft to drive locking bolt slide retraction when rotation.
The lock tongue sliding block is the lock tongue gear that is arranged on lock body of guiding movement, lock tongue control mechanism further include for
The lock tongue rack of the lock tongue gear engagement, the lock tongue are fixed on lock tongue rack with flexible with lock tongue rack synchronous.
The door latch structure of handle idle running further includes the lock frame for being fixed on doorframe, locks to offer on frame and be stretched for locking bolt
The locking bolt hole entered and the dead bolt hole stretched into for lock tongue are locked and are provided with safety instruction circuit in frame, and safety instruction circuit includes successively
The normally opened contact of concatenated power supply, mechanical switch, sounding component and normal open switch, safety instruction circuit, which further includes that delay is normally closed, opens
It closes, the normally-closed contact for the normally closed switch that is delayed is in parallel with sounding component and normally opened contact after connecting with the coil of normal open switch, delay
The delay coil of normally closed switch is also in parallel with sounding component and normally opened contact；When lock tongue extend out to end, mechanical switch touches
Point is pushed and so that sounding component is obtained in the setting delay time of delay normally closed switch electric and send out prompt tone by lock tongue.
The power supply includes household power supply and accumulator, and household power supply is obtained by household AC electric rectification amplitude limit
And it is in parallel with accumulator.
Beneficial effects of the present invention are as follows：When using door latch structure of the invention, when towards enabling direction swing handle,
Hand runner can rotate therewith, and stir protrusion by double wedge and move therewith, and locking bolt runner i.e. can be around the rotation axis of itself and lock body
Line rotates, and the movement of locking bolt runner is transferred to locking bolt sliding block through locking bolt connecting rod makes its retraction, that is, realizes unlocking bolt.Turn in double wedge
It can be disengaged with protrusion after crossing certain angle, when being rotated further by handle, handle runner can dally, and locking bolt runner will not turn therewith
It is dynamic；Compressed spring can drive locking bolt to extend out to reset condition and realize the locking of locking bolt simultaneously, and locking bolt runner can turn therewith naturally
To reset condition.It removes after exerting a force to handle, extension spring can drive handle runner to return back to the original that double wedge is abutted with protrusion
Beginning position is prepared for unlocking bolt next time.
Description of the drawings
Fig. 1 is the structural schematic diagram of one embodiment of the door latch structure of the handle idle running of the present invention；
Fig. 2 is the structure principle chart in safety instruction circuit in Fig. 1.
Specific implementation mode
The embodiment of the door latch structure of the handle idle running of the present invention：
The door latch structure of the handle idle running of the present invention is as depicted in figs. 1 and 2, including lock body 1 and lock frame 2, is equipped in lock body 1
Lock tongue control mechanism and locking bolt control mechanism.The locking bolt hole 21 stretched into for locking bolt and the lock stretched into for lock tongue are offered on lock frame 2
Tongue apertures 22 locks in frame 20 and is additionally provided with safety instruction circuit.
Safety instruction circuit includes the power supply 23 being sequentially connected in series, sounding component 24, mechanical switch K1, normally closed switch and delay
Normal open switch, normally closed switch include delay coil KT and normally-closed contact K2, and delay normal open switch includes coil KM and normally opened contact
K3, wherein delay coil KT connects with mechanical switch K1, normally-closed contact K2 is in parallel with delay coil KT after connecting with coil KM, often
It opens also in parallel with delay coil KT after contact K3 connects with sounding component 24.
The contact of mechanical switch K1 is corresponding with 22 position of dead bolt hole, when lock tongue extend out to extreme position, mechanical switch
The contact of K1 is pushed and is closed by lock tongue, be delayed at this time branch where coil KT and the places coil KM branch electric, coil KM
It is electric after normally opened contact K3 be triggered and be closed, sounding component 24 it is electric and send out prompt tone.When delay coil KT obtains electric setting
Between（Duration is uniquely determined by delay coil KT inner parameters）Afterwards, normally-closed contact K2 is triggered and disconnects, coil KM dead electricity, normally opened
Contact K3 replys original off-state, and the stopping of 24 dead electricity of sounding component sends out prompt tone.So after door lock is good, sounding component
24 can send out prompt tone in the delay period of delay coil KT prompts user that door lock is good, deepens to remember when user locks a door
Recall, reduces user because of the probability for turning back and locking a door after setting out of forgetting whether to lock a door again.
Power supply 23 in the safety instruction circuit of the present invention includes household power supply 25 and accumulator 26, household power supply electricity
Source 25 is obtained by household AC electric rectification amplitude limit, and household power supply 25 is in parallel with accumulator 26 to ensure that safety instruction circuit can
By work.It is safety instruction circuit supply of electrical energy by household power supply 25, while being filled to accumulator 26 when powering normal in family
Electricity is safety instruction circuit supply of electrical energy by accumulator 26 when having a power failure in main.
Locking bolt control mechanism 3 includes handle runner 31, locking bolt runner 32, locking bolt connecting rod 33, the locking bolt sliding block being sequentially arranged
34 and locking bolt 35, handle runner 31 is rotatably arranged on lock body with locking bolt runner 32, locking bolt runner 32, locking bolt connecting rod 33 and lock
Bolt sliding block 34 together constitutes slider-crank mechanism, and handle axle 38 is fixed on handle runner 31 to drive its rotation, locking bolt 35
It is fixed on locking bolt sliding block 34 with synchronization telescope therewith.Double wedge 36, locking bolt runner are offered on the part wheel face of handle runner 31
The protrusion 37 for coordinating with the double wedge 36, the upper end of the lower face and protrusion 37 of normality lower raised teeth 36 are offered on 32
Face abuts.So the meeting top pressure of double wedge 36 protrusion 37 when rotating clockwise handle runner 31, contacts in double wedge 36 with protrusion 37
Locking bolt runner 32 rotates with handle runner 31 and locking bolt sliding block 34 is driven to retract in the period of cooperation, remaining time Internal handle turns
31 idle running of wheel.So even if handle, by big torque, after handle runner 31 rotates more than certain angle, handle runner 31 dallies
When friction greatly reduce, damaged to can avoid handle axle 38 and the junction of handle runner 31 because stress is excessive
It is bad.
The compressed spring 6 for driving locking bolt sliding block 34 to stretch out, handle runner are provided between lock body 1 and locking bolt sliding block 34
The extension spring 7 for driving 31 homing of handle runner is provided between 31 and lock body 1.Extension spring 7 is under normality
Most short status, when handle runner 31 rotates, extension spring 7 can extend；The lower edge of double wedge 36 coordinates with 37 block of protrusion, lock
Bolt 35 is in stretching state.When enabling, handle is rotated clockwise, handle runner 31 is rotated with handle, and protrusion 37 is by double wedge 36
Top pressure and so that locking bolt runner 32 is rotated counterclockwise around the rotary centerline of itself and lock body 1, locking bolt connecting rod 33 drives locking bolt sliding block 34
Uplink, locking bolt 35 are retracted in company with 34 uplink of locking bolt sliding block.It removes after exerting a force to handle runner 31, handle runner 31 stretches spring in place
The lower homing of 7 effects, locking bolt sliding block 34 is repositioned to the reset condition of stretching under the effect of compressed spring 6, and locking bolt is driven to connect
32 return of bar 33 and locking bolt runner.
Lock tongue control mechanism includes the lock tongue shaft 45 being sequentially arranged, lock tongue runner 41, lock tongue connecting rod 42, lock tongue sliding block 43
With lock tongue 44, lock tongue shaft 45 is rotatably arranged on lock body, and offers the lockhole being inserted into for key to drive it to rotate thereon,
Lock tongue runner 41 is assembled with 45 rotation stop of lock tongue shaft to rotate synchronously therewith.Lock tongue sliding block 43, which is oriented to, to be mounted on lock body, lock tongue
Runner 41, lock tongue connecting rod 42 and lock tongue sliding block 43 together constitute slider-crank mechanism, and lock tongue 44 is fixed on lock tongue sliding block 43
To stretch therewith.
When being inserted into lock tongue shaft 45 for realization key and twisting key towards unlocking direction, lock tongue 44 contracts simultaneously with locking bolt 35
It returning, is additionally provided with lazy-tongs 5 in lock body 1, lazy-tongs 5 include drive link 51 and drive disk 52, and the one of drive link 51
End is hinged on drive disk 52, the other end is hinged on locking bolt sliding block 34, and drive disk 52 is sleeved on lock tongue by unilateral bearing and turns
On the peripheral surface of axis 45.Drive disk 52, drive link 51, locking bolt sliding block 34 and lock body 1 constitute third group slider-crank mechanism.
Drive disk 52 can rotate clockwise, therewith when drive disk 52 is inverse when the setting of unilateral bearing makes lock tongue shaft 45 rotate clockwise
When hour hands rotate lock tongue shaft 45 will not rotate therewith but can remains stationary.So when twisting lock tongue shaft 45 clockwise, one
44 uplink as shown above of aspect lock tongue is retracted；Another aspect drive disk 52 can rotate clockwise therewith, and uplink locking bolt is driven to slide
34 uplink of block, locking bolt 35 drive uplink by retracting in locking bolt hole 201 by it.Apply thrust to door leaf at this time door can be opened,
Handlebar unlocked locking bolt need not be twisted again.
After door is opened, key is removed, the twisting resistance being applied in lock tongue shaft 45 is avoided, and locking bolt sliding block 24 exists
Downlink under the action of compressed spring 6, drive disk 52 can rotate counterclockwise under the drive of locking bolt sliding block 34 at this time, but lock tongue shaft
45 and lock tongue runner 41 can remain stationary as.In other words lazy-tongs 5 only be inserted into key unlocking this during play and make
It locks select 35 and synchronizes the effect retracted with lock tongue 44, the reseting procedure of locking bolt 35 meets door lock without lock tongue 44 is influenced after unlocking
The use demand of structure.
In other embodiments, to increase the flexible stroke of locking bolt, locking bolt sliding block 34 can be set to the pattern of locking bolt gear,
In addition two groups and the locking bolt gear locking bolt rack that ipsilateral does not engage are set, one of which locking bolt rack be fixed on lock body 1 with
Movement for locking bolt gear is oriented to, and is arranged on lock body 1 with by locking bolt gear institute to another group of locking bolt rack guiding movement
Locking bolt is fixed on the amplification that the flexible stroke of locking bolt can be realized in the movement locking bolt rack end by driving；To increase stretching for lock tongue
The structure of indention journey, lock tongue sliding block also can be as above arranged.
Claims (7)
1. the door latch structure of handle idle running, including lock body, locking bolt control mechanism is installed in lock body, it is characterised in that：Locking bolt
Control mechanism includes the handle runner being sequentially arranged, locking bolt runner, locking bolt connecting rod, locking bolt sliding block and locking bolt, handle runner and lock
Bolt runner is rotatably arranged on lock body, and locking bolt runner, locking bolt connecting rod and locking bolt sliding block together constitute slider-crank mechanism,
Hand axis is fixed on handle runner to drive its rotation, and locking bolt sliding block is for driving locking bolt stretching motion；The part of handle runner
Double wedge is offered on wheel face, and the protrusion for coordinating with the double wedge, normality lower raised teeth and protrusion are offered on locking bolt runner
Portion abuts, and locking bolt runner is rotated and driven with handle runner within the period that double wedge coordinates with protrusion when swing handle runner
Locking bolt slide retraction, the idle running of remaining time Internal handle runner, are additionally provided between lock body and locking bolt sliding block for driving locking bolt to slide
Block replys the compressed spring of original stretching state, is provided between handle runner and lock body original for driving handle runner to reply
The extension spring of position.
2. the door latch structure of handle idle running according to claim 1, it is characterised in that：The locking bolt sliding block is to be oriented to move
The dynamic locking bolt gear being arranged on lock body, locking bolt control mechanism further includes the locking bolt rack for being engaged with the locking bolt gear,
The locking bolt is fixed on locking bolt rack with flexible with locking bolt rack synchronous.
3. the door latch structure of handle idle running according to claim 1, it is characterised in that：Lock tongue control is installed in lock body
Mechanism, lock tongue control mechanism include the lock tongue shaft being sequentially arranged, lock tongue runner, lock tongue connecting rod, lock tongue sliding block and lock tongue, lock tongue
Shaft is rotatably arranged on lock body, and offers the lockhole being inserted into for key to drive it to rotate, lock tongue runner and lock tongue thereon
Shaft rotation stop is assembled, and lock tongue slider guide is mounted on lock body, and lock tongue runner, lock tongue connecting rod and lock tongue sliding block together constitute song
Handle slide block mechanism, lock tongue sliding block is for driving lock tongue stretching motion.
4. the door latch structure of handle idle running according to claim 3, it is characterised in that：Synchronous machine is provided in lock body
Structure, lazy-tongs include drive link and drive disk, and one end of drive link is hinged on drive disk, the other end is hinged on locking bolt
On sliding block, drive disk, drive link, locking bolt sliding block and lock body constitute third group slider-crank mechanism, and drive disk passes through unidirectional
Bearing holder (housing, cover) is on the peripheral surface of lock tongue shaft to be rotated with lock tongue shaft to drive when lock tongue shaft is rotated towards unlocking direction
Locking bolt slide retraction.
5. the door latch structure of handle idle running according to claim 3, it is characterised in that：The lock tongue sliding block is to be oriented to move
The dynamic lock tongue gear being arranged on lock body, lock tongue control mechanism further includes the lock tongue rack for being engaged with the lock tongue gear,
The lock tongue is fixed on lock tongue rack with flexible with lock tongue rack synchronous.
6. the door latch structure of handle idle running according to any one of claim 1 to 5, it is characterised in that：Handle can be empty
The door latch structure turned further includes lock frame for being fixed on doorframe, locks and offers the locking bolt hole stretched into for locking bolt on frame and for lock
The dead bolt hole that tongue stretches into is locked in frame and is provided with safety instruction circuit, and safety instruction circuit includes that the power supply being sequentially connected in series, machinery are opened
It closes, the normally opened contact of sounding component and normal open switch, safety instruction circuit further includes delay normally closed switch, and be delayed normally closed switch
Normally-closed contact is in parallel with sounding component and normally opened contact after connecting with the coil of normal open switch, the delay coil for the normally closed switch that is delayed
Also in parallel with sounding component and normally opened contact；When lock tongue extend out to end, the contact of mechanical switch is pushed by lock tongue and makes hair
Sound component obtains electric in the setting delay time of delay normally closed switch and sends out prompt tone.
7. the door latch structure of handle idle running according to claim 6, it is characterised in that：The power supply includes household power supply
Power supply and accumulator, household power supply are obtained and in parallel with accumulator by household AC electric rectification amplitude limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810475356.9A CN108716309B (en) | 2018-05-17 | 2018-05-17 | Door lock structure with handle capable of idling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810475356.9A CN108716309B (en) | 2018-05-17 | 2018-05-17 | Door lock structure with handle capable of idling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108716309A true CN108716309A (en) | 2018-10-30 |
| CN108716309B CN108716309B (en) | 2020-04-03 |
Family
ID=63899866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810475356.9A Active CN108716309B (en) | 2018-05-17 | 2018-05-17 | Door lock structure with handle capable of idling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108716309B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114132790A (en) * | 2021-12-24 | 2022-03-04 | 江西豪润实业有限公司 | Automatic cloth placing and laminating equipment for artificial leather production |
| CN114737848A (en) * | 2022-05-23 | 2022-07-12 | 江西德沃箱柜制造有限公司 | Copper safe with multiple protection warning functions |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2359402Y (en) * | 1999-01-13 | 2000-01-19 | 沈木林 | Cylindrical lock with external handle runfree for deformed man |
| CN2445056Y (en) * | 2000-08-14 | 2001-08-29 | 常俊廉 | Spring automatic reset card inserted door lock and its key |
| CN2500761Y (en) * | 2001-10-29 | 2002-07-17 | 林清田 | Improvement of door lock structure |
| US20090152880A1 (en) * | 2007-12-14 | 2009-06-18 | Paul Donovan | Extendable bumper |
-
2018
- 2018-05-17 CN CN201810475356.9A patent/CN108716309B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2359402Y (en) * | 1999-01-13 | 2000-01-19 | 沈木林 | Cylindrical lock with external handle runfree for deformed man |
| CN2445056Y (en) * | 2000-08-14 | 2001-08-29 | 常俊廉 | Spring automatic reset card inserted door lock and its key |
| CN2500761Y (en) * | 2001-10-29 | 2002-07-17 | 林清田 | Improvement of door lock structure |
| US20090152880A1 (en) * | 2007-12-14 | 2009-06-18 | Paul Donovan | Extendable bumper |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114132790A (en) * | 2021-12-24 | 2022-03-04 | 江西豪润实业有限公司 | Automatic cloth placing and laminating equipment for artificial leather production |
| CN114132790B (en) * | 2021-12-24 | 2023-09-22 | 江西豪润实业有限公司 | Automatic cloth laying and laminating equipment for artificial leather production |
| CN114737848A (en) * | 2022-05-23 | 2022-07-12 | 江西德沃箱柜制造有限公司 | Copper safe with multiple protection warning functions |
| CN114737848B (en) * | 2022-05-23 | 2023-04-25 | 江西德沃箱柜制造有限公司 | Copper safe with multiple protection warning function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108716309B (en) | 2020-04-03 |
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