CN204475987U - A kind of safety door latch - Google Patents
A kind of safety door latch Download PDFInfo
- Publication number
- CN204475987U CN204475987U CN201520009302.5U CN201520009302U CN204475987U CN 204475987 U CN204475987 U CN 204475987U CN 201520009302 U CN201520009302 U CN 201520009302U CN 204475987 U CN204475987 U CN 204475987U
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- China
- Prior art keywords
- dead bolt
- insurance
- block
- spring
- safety plate
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of safety door latch, comprise lock body, dead bolt, tongue driving device, lever handle device and safeties, described lock body comprises reveal fixed head and two door internal fixation plates, described safeties comprise safety plate, insurance drive block, insurance driving chip, double end back-moving spring, spring fitting post, safety plate interlock post and knob, described insurance drive block and spring fitting post are installed between two internal fixation plates, described safety plate is close proximity to below insurance drive block, described safety plate interlock post is fixed on safety plate, the two ends of described double end back-moving spring are sheathed on spring fitting post and safety plate joint pin respectively, described knob is installed on lever handle device, described insurance driving chip is linked in the knob on lever handle device through insurance drive block both sides, described dead bolt offers two grooves, grinding abrasive disk is fixedly connected with by pin in described groove.The utility model structure is more simple, low cost of manufacture, easy for installation, assembly technology are simple, and not fragile, longer service life in use procedure.
Description
Technical field
The utility model relates to the technical field of lock, is specifically related to a kind of safety door latch.
Background technology
Door lock is a kind of device that door-plate can be pinned, existing door lock generally comprises lock body, dead bolt, tongue driving device, lever handle device and safeties, lock body comprises reveal fixed head and two door internal fixation plates, two door internal fixation plates are parallel to each other and vertical with reveal fixed head, and tongue driving device is by being installed in lock body the dead bolt being connected to and being positioned at outside lock body, and lever handle device to be located at lock body outer and be linked in tongue driving device, the running of bolt device is driven by lever handle device, with the reciprocating motion making tongue driving device drive dead bolt, it is safer when safeties can to make to cut out.But the structure of existing safety door latch is usually comparatively complicated, and not only manufacturing cost is high, and install inconvenient, assembly technology is complicated, and easily damages in use procedure, and application life is short.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of structure is simple, low cost of manufacture, easy for installation, assembly technology simple, and not fragile in use procedure, the safety door latch of longer service life.
In order to solve the problem existing for background technology, the utility model have employed following technical scheme: a kind of safety door latch, comprise lock body, dead bolt, tongue driving device, lever handle device and safeties, described lock body comprises reveal fixed head and two door internal fixation plates, described two door internal fixation plates are parallel to each other and vertical with reveal fixed head, described lever handle device is linked in tongue driving device, tongue driving device is linked in dead bolt, described safeties comprise safety plate, insurance drive block, insurance driving chip, double end back-moving spring, spring fitting post, safety plate interlock post and knob, described insurance drive block and spring fitting post are installed between two internal fixation plates, described safety plate is close proximity to below insurance drive block, described safety plate interlock post is fixed on safety plate, the two ends of described double end back-moving spring are sheathed on spring fitting post and safety plate joint pin respectively, described knob is installed on lever handle device, described insurance driving chip is linked in the knob on lever handle device through insurance drive block both sides, described dead bolt offers two grooves, grinding abrasive disk is fixedly connected with by pin in described groove.
Pass through technique scheme, tongue driving device is driven by lever handle device, tongue driving device will drive the motion of dead bolt, thus the effect of opening the door or closing the door can be played, and as the knob, drive insurance driving chip rotates by knob, insurance driving chip just can drive insurance drive block to rotate, wherein when insuring drive block and rotating, safety plate moves down, the effect of insuring can be played, and when insuring drive block and rotating back into original position, double end back-moving spring moves on drive safety plate, safety plate is set back, thus insurance is opened, and by being provided with grinding abrasive disk on dead bolt, the flexibility of dead bolt motion can be improved, greatly can reduce the wear intensity of dead bolt simultaneously, to extend the application life of dead bolt, this Structure of safety door lock is more simple, low cost of manufacture, easy for installation, assembly technology is simple, and it is not fragile in use procedure, longer service life.
Further setting of the present utility model: described tongue driving device comprises driving wheel, driving shaft, dead bolt connecting axle, mount pad and limited block, described driving wheel and mount pad are installed between two internal fixation plates, described mount pad is provided with connecting axle through hole, described dead bolt connecting axle one end is passed connecting axle through hole and is connected to limited block, the other end connects dead bolt, the described position of dead bolt connecting axle between dead bolt and mount pad is arranged with back-moving spring, described driving wheel comprises driving wheel body and is located at the actuating arm of driving wheel body one end, described actuating arm is linked in the position of dead bolt connecting axle between mount pad and limited block away from one end of driving wheel body, described driving wheel body is provided with foursquare driving shaft through hole, described driving shaft is linked in lever handle device through driving shaft through hole both sides, reduction torsion spring is provided with in described driving wheel body.
Pass through technique scheme, when by external force rotating driveshaft, driving shaft just can drive driving wheel to drive the motion of dead bolt connecting axle, dead bolt connecting axle just can drive dead bolt to move, when after release external force, driving wheel by self-resetting under the effect of reduction torsion spring, simultaneously dead bolt connecting axle self-resetting under the effect of driving wheel, thus dead bolt connecting axle also will drive dead bolt to reset, automatic locking to realize.
Further setting of the present utility model: described lever handle device comprises handle installation panel, handle, described handle installation panel side is provided with groove, described handle is located at the handle installation panel side contrary with groove, the upper and lower side of described handle installation panel is provided with installing hole, two spacing blocks be integrated with handle installation panel are provided with in the groove of described handle installation panel, driving shaft contiguous block is respectively equipped with between described two spacing blocks, limit spring block and Compress Spring, described driving shaft contiguous block one end passes handle installation panel and is connected to handle, the described upper and lower both sides of driving shaft contiguous block abut limit spring block respectively, Compress Spring is respectively equipped with between described spacing block and corresponding limit spring block, described driving shaft is linked in driving shaft contiguous block respectively through the two ends of driving shaft through hole.
Pass through technique scheme, when using external force to rotate handle, handle just can drive driving shaft contiguous block to drive drive shaft turns, driving shaft just can drive tongue driving device, dead bolt motion is driven to make tongue driving device, driving shaft contiguous block makes limit spring block move up and down in the process of rotating, make the process that Compress Spring produces compression and resets simultaneously, and limit spring block and Compress Spring can be good at the position limiting driving shaft contiguous block, with the phenomenon avoiding it to produce off normal, and handle all can play the effect driving drive shaft turns by left-right rotation, operate more convenient.
Further setting of the present utility model: described reveal fixed head is provided with the dead bolt hole stretched out for dead bolt, described dead bolt hole and dead bolt shape suitable, described two internal fixation plates are equipped with conversion through hole by the side of reveal fixed head, described conversion through hole and dead bolt size suitable.
By technique scheme, the setting of dead bolt hole is the passage making the more smooth and easy motion of dead bolt, and the setting of ALT-CH alternate channel can facilitate the direction of dead bolt to change, to be applicable to the door of different opening direction.
Further setting of the present utility model: be provided with dead bolt limit assembly between two described internal fixation plates, this dead bolt limit assembly comprises banking stop and mounting bar, described mounting bar is fixed between two internal fixation plates, and described banking stop to be installed on mounting bar and to be mounted opposite bar and can move up and down.
By technique scheme, the setting of this limit assembly can limit the inside entering lock body when dead bolt is normally opened completely, and occurs the phenomenon of clamping stagnation, and when dead bolt is pushed travel direction conversion in lock body by needs, just can banking stop moves.
Further setting of the present utility model: described insurance drive block is by drive block body and compress arm and form, described safety plate is provided with breach near the position of insurance drive block, described compresses the left and right sides that arm and drive block body contact at described breach respectively.
By technique scheme, thus the position relationship of safety plate and insurance drive block can be made more reasonable, and then insurance drive block can be made better to drive moving down of safety plate, during to avoid insuring, produce the phenomenon of clamping stagnation.
Further setting of the present utility model: the keep left position of side of described safety plate is provided with longitudinal elongated slot, be provided with limited post through longitudinal elongated slot between two described internal fixation plates, the top described two internal fixation plates being positioned at insurance drive block is provided with spacing preiection.
Pass through technique scheme, the setting of limited post and longitudinal elongated slot can be good at path when correcting safety plate moves up and down, off normal is produced when moving up and down to avoid safety plate, spacing preiection can play effect that is fixing and restriction insurance drive block position, to prevent from producing off normal during insurance drive block return.
Further setting of the present utility model: be provided with annular cavity in described driving wheel body, described annular cavity and driving shaft through hole are coaxially arranged, described reduction torsion spring is arranged in annular cavity, the lateral wall of described driving wheel body offers two otch communicated with annular cavity, two ends of described reduction torsion spring are stretched out by two otch of driving wheel body respectively.
Pass through technique scheme; by reduction torsion spring is located in annular cavity; thus reduction torsion spring can be avoided directly to be exposed to driving wheel body exterior; the effect of protection reduction torsion spring can be played; and the setting of otch can play fixing and spacing effect to reduction torsion spring, thus can avoid reduction torsion spring that the phenomenon of skew occurs.
Further setting of the present utility model: the position that described two spacing blocks and Compress Spring compress is respectively arranged with depression, is provided with one deck pad between described limit spring block and the groove inner wall of handle installation panel.
Pass through technique scheme, the setting of depression can play the effect of restriction and fixing Compress Spring position, off normal is produced when compressing or restore to avoid Compress Spring, and pad can avoid the mutual wearing and tearing of limit spring block in the process of movement and between the groove inner wall of handle installation panel, be conducive to the application life extending limit spring block.
The beneficial effects of the utility model are: a kind of Structure of safety door lock of the present utility model is more simple, low cost of manufacture, easy for installation, assembly technology are simple, and not fragile in use procedure, longer service life, operation are also more convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of safety door latch of the utility model;
Fig. 2 is the structural representation of the lock body of a kind of safety door latch of the utility model when taking apart;
Fig. 3 is the structural representation of the lever handle device of a kind of safety door latch of the utility model.
Detailed description of the invention
In order to make content of the present utility model more clear, below in conjunction with embodiment, the utility model is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1 to Figure 3, a kind of safety door latch of the utility model embodiment, comprise lock body 1, dead bolt 2, tongue driving device 3, lever handle device 4 and safeties 5, lock body 1 comprises reveal fixed head 11 and two door internal fixation plates 12, two door internal fixation plates 12 are parallel to each other and vertical with reveal fixed head 11, lever handle device 4 is linked in tongue driving device 3, tongue driving device 3 is linked in dead bolt 2, wherein, safeties 5 comprise safety plate 51, insurance drive block 52, insurance driving chip 53, double end back-moving spring 54, spring fitting post 55, safety plate interlock post 56 and knob 57, insurance drive block 52 and spring fitting post 55 are installed between two internal fixation plates 12, safety plate 51 is close proximity to below insurance drive block 52, safety plate interlock post 56 is fixed on safety plate 52, the two ends of double end back-moving spring 54 are sheathed on spring fitting post 55 and safety plate joint pin 56 respectively, knob 57 is installed on lever handle device 4, insurance driving chip 53 is linked in the knob 57 on lever handle device 4 through insurance drive block 52 both sides, further, dead bolt 2 offers two grooves 21, and be fixedly connected with grinding abrasive disk 23 by pin 22 in groove 21.Tongue driving device 3 is driven by lever handle device 4, tongue driving device 3 will drive the motion of dead bolt 2, thus the effect of opening the door or closing the door can be played, and when turning knob 57, drive insurance driving chip 53 rotates by knob 57, insurance driving chip 53 just can drive insurance drive block 52 to rotate, wherein when insuring drive block 52 and rotating, safety plate 51 moves down, the effect of insuring can be played, and when insuring drive block 52 and rotating back into original position, double end back-moving spring 54 moves on drive safety plate 51, safety plate 51 is set back, thus insurance is opened, and by being provided with grinding abrasive disk 23 on dead bolt 2, the flexibility that dead bolt 2 moves can be improved, greatly can reduce the wear intensity of dead bolt 2 simultaneously, to extend the application life of dead bolt 2, this Structure of safety door lock is more simple, low cost of manufacture, easy for installation, assembly technology is simple, and it is not fragile in use procedure, longer service life.
In the present embodiment, tongue driving device 3 comprises driving wheel 31, driving shaft 32, dead bolt connecting axle 33, mount pad 34 and limited block 35, driving wheel 31 and mount pad 34 are installed between two internal fixation plates 12, mount pad 34 is provided with connecting axle through hole 341, dead bolt connecting axle 33 one end is passed connecting axle through hole 341 and is connected to limited block 35, the other end connects dead bolt 2, the position of dead bolt connecting axle 33 between dead bolt 2 and mount pad 34 is arranged with back-moving spring 36, driving wheel 31 comprises driving wheel body 311 and is located at the actuating arm 312 of driving wheel body 311 one end, actuating arm 312 is linked in the position of dead bolt connecting axle 33 between mount pad 34 and limited block 35 away from one end of driving wheel body 311, driving wheel body 311 is provided with foursquare driving shaft through hole 3111, driving shaft 32 is linked in lever handle device 4 through driving shaft through hole 3111 both sides, reduction torsion spring 37 is provided with in driving wheel body 311.Thus when by external force rotating driveshaft 32, driving shaft 32 just can drive driving wheel 31 to drive dead bolt connecting axle 33 to move, dead bolt connecting axle 33 just can drive dead bolt 2 to move, when after release external force, driving wheel 31 is by self-resetting under the effect of reduction torsion spring 37, dead bolt connecting axle 33 self-resetting under the effect of driving wheel 31 simultaneously, thus drive dead bolt 2 also resets by dead bolt connecting axle 33, automatic locking to realize.
In the present embodiment, lever handle device 4 comprises handle installation panel 41, handle 42, handle installation panel 41 side is provided with groove 411, handle 42 is located at handle installation panel 41 side contrary with groove 411, the upper and lower side of handle installation panel 41 is provided with installing hole 412, further, two spacing blocks 43 be integrated with handle installation panel 41 are provided with in the groove 411 of handle installation panel 41, driving shaft contiguous block 44 is respectively equipped with between this two spacing block 43, limit spring block 45 and Compress Spring 46, driving shaft contiguous block 44 one end passes handle installation panel 41 and is connected to handle 42, driving shaft contiguous block about 44 both sides abut limit spring block 45 respectively, Compress Spring 46 is respectively equipped with between spacing block 43 and corresponding limit spring block 45, driving shaft 32 is linked in driving shaft contiguous block 44 respectively through the two ends of driving shaft through hole 3111.When using external force to rotate handle 42, handle 42 just can drive driving shaft contiguous block 44 to drive driving shaft 32 to rotate, driving shaft 32 just can drive tongue driving device 3, dead bolt 2 is driven to move to make tongue driving device 3, driving shaft contiguous block 44 makes limit spring block 45 move up and down in the process of rotating, make the process that Compress Spring 46 produces compression and resets simultaneously, and limit spring block 45 and Compress Spring 46 can be good at the position limiting driving shaft contiguous block 44, with the phenomenon avoiding it to produce off normal, and handle 42 all can play the effect driving driving shaft 32 to rotate by left-right rotation, operate more convenient.
In the present embodiment, reveal fixed head 11 is provided with the dead bolt hole 111 stretched out for dead bolt 2, dead bolt hole 111 is suitable with dead bolt 2 shape, two internal fixation plates 12 lean on the side of reveal fixed head to be equipped with conversion through hole 121, conversion through hole 121 is suitable with dead bolt 2 size, the setting of dead bolt hole 111 is the passages making the more smooth and easy motion of dead bolt 2, and the setting of ALT-CH alternate channel 121 can facilitate the direction of dead bolt 2 to change, to be applicable to the door of different opening direction.
In the present embodiment, dead bolt limit assembly 6 is provided with between two internal fixation plates 12, this dead bolt limit assembly 6 comprises banking stop 61 and mounting bar 62, mounting bar 62 is fixed between two internal fixation plates 12, banking stop 61 to be installed on mounting bar 62 and to be mounted opposite bar 62 and can move up and down, the setting of this limit assembly 6 can limit the inside entering lock body 1 when dead bolt 2 is normally opened completely, and there is the phenomenon of clamping stagnation, and when dead bolt 2 is pushed travel direction conversion in lock body 1 by needs, just can banking stop 61 moves.
In the present embodiment, insurance drive block 52 is by drive block body 521 and compress arm 522 and form, safety plate 51 is provided with breach 511 near the position of insurance drive block 52, compress the left and right sides that arm 522 and drive block body 521 contact at breach 511 respectively, thus the position relationship of safety plate 51 and insurance drive block 52 can be made more reasonable, and then insurance drive block 52 can be made better to drive moving down of safety plate 51, produce the phenomenon of clamping stagnation during to avoid insuring.
In the present embodiment, the keep left position of side of safety plate 51 is provided with longitudinal elongated slot 512, limited post 58 is provided with through longitudinal elongated slot 512 between two internal fixation plates 12, the top two internal fixation plates 12 being positioned at insurance drive block 52 is provided with spacing preiection 122, the setting of limited post 58 and longitudinal elongated slot 512 can be good at path when correcting safety plate 51 moves up and down, off normal is produced when moving up and down to avoid safety plate 51, spacing preiection 122 can play effect that is fixing and restriction insurance drive block 52 position, to prevent from producing off normal during insurance drive block 52 return.
In the present embodiment, annular cavity 3112 is provided with in driving wheel body 311, and annular cavity 3112 and driving shaft through hole 3111 are coaxially arranged, reduction torsion spring 37 is arranged in annular cavity 3112, the lateral wall of driving wheel body 311 offers two otch 3113 communicated with annular cavity 3112, two ends 371 of reduction torsion spring 37 are stretched out by two otch 3113 of driving wheel body 311 respectively, by reduction torsion spring 37 is located in annular cavity 3112, thus it is outside that reduction torsion spring 37 can be avoided directly to be exposed to driving wheel body 311, the effect of protection reduction torsion spring 37 can be played, and the setting of otch 3113 can play fixing and spacing effect to reduction torsion spring 37, thus can avoid reduction torsion spring 37 that the phenomenon of skew occurs.
In the present embodiment, the position that two spacing blocks 43 and Compress Spring 46 compress is respectively arranged with depression 431, one deck pad 47 is provided with between groove 411 inwall of limit spring block 45 and handle installation panel 41, the setting of depression 431 can play the effect of restriction and fixing Compress Spring 46 position, off normal is produced when compressing or restore to avoid Compress Spring 46, and pad 47 can avoid limit spring block 45 in the process of movement and mutual wearing and tearing between groove 411 inwall of handle installation panel 41, be conducive to the application life extending limit spring block 45.
Claims (9)
1. a safety door latch, comprise lock body, dead bolt, tongue driving device, lever handle device and safeties, described lock body comprises reveal fixed head and two door internal fixation plates, described two door internal fixation plates are parallel to each other and vertical with reveal fixed head, described lever handle device is linked in tongue driving device, described tongue driving device is linked in dead bolt, it is characterized in that: described safeties comprise safety plate, insurance drive block, insurance driving chip, double end back-moving spring, spring fitting post, safety plate interlock post and knob, described insurance drive block and spring fitting post are installed between two internal fixation plates, described safety plate is close proximity to below insurance drive block, described safety plate interlock post is fixed on safety plate, the two ends of described double end back-moving spring are sheathed on spring fitting post and safety plate joint pin respectively, described knob is installed on lever handle device, described insurance driving chip is linked in the knob on lever handle device through insurance drive block both sides, described dead bolt offers two grooves, grinding abrasive disk is fixedly connected with by pin in described groove.
2. a kind of safety door latch according to claim 1, it is characterized in that: described tongue driving device comprises driving wheel, driving shaft, dead bolt connecting axle, mount pad and limited block, described driving wheel and mount pad are installed between two internal fixation plates, described mount pad is provided with connecting axle through hole, described dead bolt connecting axle one end is passed connecting axle through hole and is connected to limited block, the other end connects dead bolt, the described position of dead bolt connecting axle between dead bolt and mount pad is arranged with back-moving spring, described driving wheel comprises driving wheel body and is located at the actuating arm of driving wheel body one end, described actuating arm is linked in the position of dead bolt connecting axle between mount pad and limited block away from one end of driving wheel body, described driving wheel body is provided with foursquare driving shaft through hole, described driving shaft is linked in lever handle device through driving shaft through hole both sides, reduction torsion spring is provided with in described driving wheel body.
3. a kind of safety door latch according to claim 2, it is characterized in that: described lever handle device comprises handle installation panel, handle, described handle installation panel side is provided with groove, described handle is located at the handle installation panel side contrary with groove, the upper and lower side of described handle installation panel is provided with installing hole, two spacing blocks be integrated with handle installation panel are provided with in the groove of described handle installation panel, driving shaft contiguous block is respectively equipped with between described two spacing blocks, limit spring block and Compress Spring, described driving shaft contiguous block one end passes handle installation panel and is connected to handle, the described upper and lower both sides of driving shaft contiguous block abut limit spring block respectively, Compress Spring is respectively equipped with between described spacing block and corresponding limit spring block, described driving shaft is linked in driving shaft contiguous block respectively through the two ends of driving shaft through hole.
4. a kind of safety door latch according to claim 1, it is characterized in that: described reveal fixed head is provided with the dead bolt hole stretched out for dead bolt, described dead bolt hole and dead bolt shape suitable, described two internal fixation plates are equipped with conversion through hole by the side of reveal fixed head, described conversion through hole and dead bolt size suitable.
5. a kind of safety door latch according to claim 1 or 4, it is characterized in that: between two described internal fixation plates, be provided with dead bolt limit assembly, this dead bolt limit assembly comprises banking stop and mounting bar, described mounting bar is fixed between two internal fixation plates, and described banking stop to be installed on mounting bar and to be mounted opposite bar and can move up and down.
6. a kind of safety door latch according to claim 1, it is characterized in that: described insurance drive block is by drive block body and compress arm and form, described safety plate is provided with breach near the position of insurance drive block, described compresses the left and right sides that arm and drive block body contact at described breach respectively.
7. a kind of safety door latch according to claim 1, it is characterized in that: the keep left position of side of described safety plate is provided with longitudinal elongated slot, be provided with limited post through longitudinal elongated slot between two described internal fixation plates, the top described two internal fixation plates being positioned at insurance drive block is provided with spacing preiection.
8. a kind of safety door latch according to claim 2, it is characterized in that: in described driving wheel body, be provided with annular cavity, described annular cavity and driving shaft through hole are coaxially arranged, described reduction torsion spring is arranged in annular cavity, the lateral wall of described driving wheel body offers two otch communicated with annular cavity, two ends of described reduction torsion spring are stretched out by two otch of driving wheel body respectively.
9. a kind of safety door latch according to claim 3, is characterized in that: the position that described two spacing blocks and Compress Spring compress is respectively arranged with depression, is provided with one deck pad between described limit spring block and the groove inner wall of handle installation panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520009302.5U CN204475987U (en) | 2015-01-07 | 2015-01-07 | A kind of safety door latch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520009302.5U CN204475987U (en) | 2015-01-07 | 2015-01-07 | A kind of safety door latch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204475987U true CN204475987U (en) | 2015-07-15 |
Family
ID=53631789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520009302.5U Expired - Fee Related CN204475987U (en) | 2015-01-07 | 2015-01-07 | A kind of safety door latch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204475987U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652927A (en) * | 2015-01-07 | 2015-05-27 | 瑞安市欧之伦建筑五金有限公司 | Secure door lock |
| CN111734219A (en) * | 2020-07-30 | 2020-10-02 | 广东坚士制锁有限公司 | Transmission assembly for locking mechanism |
-
2015
- 2015-01-07 CN CN201520009302.5U patent/CN204475987U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652927A (en) * | 2015-01-07 | 2015-05-27 | 瑞安市欧之伦建筑五金有限公司 | Secure door lock |
| CN111734219A (en) * | 2020-07-30 | 2020-10-02 | 广东坚士制锁有限公司 | Transmission assembly for locking mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180712 Address after: 325204 No. 3-5 Chenzhaiwang Road, Tangxia Town, Ruian City, Zhejiang Province Patentee after: Wenzhou European building hardware Co., Ltd. Address before: 325204 No. 3-5 Chenzhaiwang Road, Tangxia Town, Ruian City, Zhejiang Province Patentee before: The human relations architectural hardware Co., Ltd in Rui'an City Europe |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20190107 |