CN112963054B - Automatic locking device for door and window and door and window - Google Patents
Automatic locking device for door and window and door and window Download PDFInfo
- Publication number
- CN112963054B CN112963054B CN202110316442.7A CN202110316442A CN112963054B CN 112963054 B CN112963054 B CN 112963054B CN 202110316442 A CN202110316442 A CN 202110316442A CN 112963054 B CN112963054 B CN 112963054B
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- Prior art keywords
- lock tongue
- window
- door
- lock
- transmission rod
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- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 230000000903 blocking effect Effects 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- 230000005570 vertical transmission Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/10—Bolts of locks or night latches
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- 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
- E05B15/02—Striking-plates; Keepers; Bolt staples; Escutcheons
- E05B15/0205—Striking-plates, keepers, staples
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Special Wing (AREA)
Abstract
The invention relates to the technical field of doors and windows, in particular to an automatic locking device for a door and a window and the door and the window, wherein the automatic locking device comprises a lock tongue assembly, a lock hook and a transmission rod; the spring bolt assembly comprises a spring bolt seat, a spring bolt and a torsion spring, wherein the spring bolt is hinged with the spring bolt seat and can automatically stand up under the action of the torsion spring; the striking side edge of the lock hook is an inward inclined guiding bevel edge, the tail end of the guiding bevel edge is provided with an inlet through which the lock tongue passes and enters the inner cavity of the lock hook, and the lock hook is also provided with a blocking part capable of blocking the lock tongue; one of the lock tongue component and the lock hook is fixedly arranged on the door and window frame, and the other is movably arranged on the door and window fan transmission rod and can slide along the transmission rod, and can automatically reset. The invention can realize automatic locking when the door and window sash is closed, can not influence the operation habit of the door and window in normal use, has smaller closing force required by locking, good reliability, and good silence and durability, and can not generate larger extrusion force or impact force between the lock tongue and the lock hook in the locking and unlocking processes.
Description
Technical Field
The invention relates to the technical field of doors and windows, in particular to an automatic locking device for doors and windows and the doors and windows.
Background
In order to meet the requirements of airtight, watertight, sound-insulating, wind pressure resistance, energy conservation and the like of doors and windows, the doors and windows are usually provided with locking devices, the conventional universal self-provided locking devices generally drive a transmission rod in the door and window sashes to reciprocate through rotating a handle of the door and window sashes, and then drive one or more locking points to lock or unlock through the transmission rod, so that after the doors and windows are closed, the doors and windows cannot be automatically locked (namely locked), the door and window sashes can be locked by rotating the handle, and when the weather of high wind with changed wind direction, especially typhoon weather, the door and window sashes are easy to repeatedly open and close to collide with the door and window frames to cause damage and even cause the door and window sashes to fall off to hurt people. In addition, in order to achieve higher fire protection requirements for fire doors and windows, when a fire occurs, the door and window sashes in an open state need to be automatically closed and automatically locked under the condition of no operation. Although the automatic closing device for fire detection in the prior art can realize automatic closing of the door and window sashes in the case of fire, the locking device of the door and window can not realize automatic locking, and the door handle can be manually operated by people to realize locking, so that the requirement of fire resistance is difficult to reach. Therefore, an automatic locking device is added on the basis of the self-contained locking device of the door and window so as to realize automatic locking when the door and window fan is closed, and the normal use of the self-contained locking device of the door and window can not be influenced, namely the operation habit of the door and window in normal use can not be influenced. At present, although some fireproof doors and windows have automatic locking devices capable of achieving the functions, a traditional inclined lock tongue structure is generally adopted, namely, the inclined lock tongue stretches out and draws back perpendicularly to a door and window frame or a door and window sash and can automatically pop out through a spring to achieve locking.
Disclosure of Invention
In order to overcome the defects in the prior art, one of the tasks of the invention is to provide an automatic locking device for doors and windows, which can realize automatic locking when a door and window fan is closed, does not influence the operation habit of the door and window in normal use, has smaller closing force required by locking, good reliability, does not generate larger extrusion force or impact force between a lock tongue and a lock hook in the locking and unlocking process, has good silencing property and durability, and has simple structure and convenient installation, and the other task of the invention is to provide the door and window provided with the automatic locking device.
The task of the invention is realized by the following technical scheme:
an automatic locking device for doors and windows comprises a lock tongue assembly, a lock hook and a transmission rod; the spring bolt assembly comprises a spring bolt seat, a spring bolt and a torsion spring, one end of the spring bolt is hinged with the spring bolt seat, and a limit structure for limiting the rotation range of the spring bolt is arranged on the spring bolt seat, so that the spring bolt can only rotate between a furling position close to the spring bolt seat and a unfolding position far away from the spring bolt seat, and two ends of the torsion spring are respectively abutted against the spring bolt and the spring bolt seat, so that the spring bolt can automatically reset to the unfolding position in a free state; one side edge of the lock hook used for striking the lock tongue is an inwards inclined guide bevel edge, the tail end of the guide bevel edge is provided with an inlet through which the lock tongue can pass and enter an inner cavity of the lock hook, and the outer side of the top edge and/or the bottom edge of the lock hook is provided with a blocking part capable of blocking the lock tongue; the transmission rod is arranged on the door and window sash and can reciprocate under the drive of the handle, one of the lock tongue component and the lock hook is fixedly arranged on the door and window frame, the other one of the lock tongue component and the lock hook is movably arranged on the transmission rod and can slide along the transmission rod, and the transmission rod can automatically reset through self gravity or a reset spring in a free state, the transmission rod can drive the lock tongue component or the lock hook arranged on the transmission rod to move from a first position to a second position, and the lock tongue is in an unfolding state and is opposite to the guide bevel edge position of the lock hook when the transmission rod is positioned in the first position, so that the side surface of the lock tongue can strike the guide bevel edge and rotate under the guide action of the lock tongue to enter the inner cavity of the lock hook and then automatically rotate to reset to realize locking, and the lock tongue and the lock hook position are staggered when the transmission rod is positioned in the second position, so that the blocking part can block the lock tongue component or the lock hook from automatically resetting to the first position when the door and window sash is in a closing state.
Preferably, when the lock tongue is in the unfolding position, the lock tongue is perpendicular to the lock tongue seat, and when the lock tongue is in the folding position, the lock tongue is parallel to the lock tongue seat, and the rotation range of the lock tongue is 0-90 degrees.
Preferably, the lock tongue is of a cylindrical structure, so that the lock tongue can enter the inner cavity of the lock hook from the inlet at the lower end of the guide bevel edge more easily to realize locking.
Preferably, the transmission rod is provided with a bar-shaped chute along the length direction of the transmission rod, and the lock tongue assembly or the lock hook is arranged on the bar-shaped chute through a connecting piece so as to slide back and forth along the bar-shaped chute.
Preferably, the reset spring is installed in the strip-shaped sliding groove, and the spring bolt assembly or the lock hook on the transmission rod can automatically reset under the action of the reset spring.
Preferably, mounting support legs are arranged at two ends of the lock hook, and the lock hook is arranged on the transmission rod or the door and window frame in an overhead manner through the mounting support legs.
A door and window comprises a fixed door and window frame, a movable door and window sash and the automatic locking device.
The action process and the working principle of the invention are as follows: ① When the door and window sash is in an open state, the self-contained locking device of the door and window is in an unlocking state, at the moment, the lock tongue assembly or the lock hook is positioned at a first position, and the lock tongue is in an unfolding state and is opposite to the guide bevel edge position of the lock hook; ② When a fire disaster occurs, the door and window fan is automatically closed, the side face of the lock tongue can strike the guide bevel edge and rotate towards the furling position against the elastic force of the torsion spring under the guide action of the guide bevel edge until the lock tongue enters the inner cavity of the lock hook through the inlet and then automatically rotates to return to the unfolded position under the action of the torsion spring, and at the moment, the lock tongue is inserted into the lock hook to realize the locking of the automatic locking device; ③ When a user rotates the handle in the forward direction, the handle drives the transmission rod to move in the forward direction to enable the self-contained locking device of the door and window to enter a locking state, meanwhile, the transmission rod drives the lock tongue assembly or the lock hook to move to a second position, the lock tongue and the lock hook move relatively, the lock tongue rotates towards the folding position under the pushing action of the inner side of the top edge or the bottom edge of the lock hook against the elastic force of the torsion spring until the lock tongue slides out from the lock hook and then automatically rotates and resets to the unfolding position under the action of the torsion spring, and the positions of the lock tongue and the lock hook are staggered, namely the automatic locking device is in an unlocking state; ④ When a user reversely rotates the handle again, the handle drives the transmission rod to reversely move so that the self-contained locking device of the door and window is restored to an unlocking state, but the blocking part can block the lock tongue, so that the lock tongue assembly or the lock hook slides relative to the transmission rod and cannot automatically reset to the first position, the lock tongue and the lock hook still keep staggered positions, namely the automatic locking device is still in the unlocking state, and the door and window wings can be freely pushed at the moment; ⑤ When a user pushes the door and window sash, the lock tongue is separated from the blocking part, the lock tongue component or the lock hook loses the blocking function and automatically resets to the first position, and the door and window sash is automatically locked again when waiting for the next closing.
Compared with the prior art, the automatic locking device can realize automatic locking when the door and window fan is closed, the door and window can not be damaged or fall off to hurt people due to repeated opening and closing excessive force caused by external factors such as blowing, the normal use of the door and window self-contained locking device can not be influenced, namely, the operation habit of the door and window in normal use can not be influenced, and the locking and unlocking processes of the automatic locking device are realized by the fact that the lock tongue is hinged with the lock tongue seat and is elastically connected through the torsion spring, and the locking and unlocking processes of the automatic locking device are realized by the fact that the lock tongue deflects against the elastic force of the torsion spring.
The conception, specific structure, and resulting effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.
Drawings
FIG. 1 is a schematic view showing a state in which the automatic locking device is mounted on a fire window in the present embodiment;
FIG. 2 is a schematic elevational view of the latch bolt assembly in an installed condition;
FIG. 3 is a schematic side elevational view of the latch bolt assembly in an installed condition; ;
FIG. 4 is a schematic elevational view of the shackle in an installed condition;
FIG. 5 is a schematic diagram of a front structure of a shackle;
fig. 6 is a schematic side view of a shackle.
Wherein: the automatic fire detection closing device comprises a lock tongue assembly 1, a lock tongue seat 11, a limiting structure 111, a lock tongue 12, a torsion spring 13, a lock hook 2, a guide bevel 21, a lock hook inner cavity 22, an inlet 23, a mounting support 24, a transmission rod 3, a strip-shaped chute 31, a rivet 32, a window sash 4, a window frame 5, a handle 6, a self-contained locking device 7 and an automatic fire detection closing device 8.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the description of the specific embodiments is intended for purposes of illustration only and is not intended to limit the scope of the present disclosure.
It will be understood that when an element is referred to as being "connected" or "mounted" to another element, it can be directly connected or mounted to the other element or be indirectly connected or mounted through intervening elements. In addition, the terms "upper", "lower", "left", "right", "inner", "outer" and the like are used herein for illustrative purposes only and do not represent the only embodiment.
In this embodiment, the automatic locking device is mounted on the fire window, wherein the latch hook is fixedly mounted on the vertical side of the window frame, and the latch bolt assembly is movably mounted on the vertical transmission rod of the window sash. In other embodiments, the installation positions of the latch hook and the latch bolt assembly may be exchanged, or the latch hook and the latch bolt assembly may be correspondingly installed at the top or bottom of the window frame or the window sash, but the principle and concept are the same as those of the present embodiment, and are not listed here.
As shown in fig. 1, the present invention provides a fire window, comprising a fixed window frame 5 and a movable window sash 4, wherein the window frame 5 and the window sash 4 are also provided with an automatic locking device in the present invention, and the automatic locking device 7 and the automatic fire detection closing device 8 are provided.
As shown in fig. 1 to 6, the present invention provides an automatic locking device for doors and windows, comprising a latch bolt assembly 1, a latch hook 2 and a transmission rod 3; the driving rod 3 is vertically arranged on the vertical side of the window sash 4 and can be driven by the handle 6 to reciprocate up and down, a vertical bar-shaped chute 31 is arranged on the driving rod 3, the lock tongue component 1 is movably arranged in the bar-shaped chute 31 through a rivet 32 and can slide up and down along the bar-shaped chute 31, and in a free state, the lock tongue component can be automatically reset to the bottommost end of the bar-shaped chute 31 through self gravity; the lock tongue assembly 1 comprises a lock tongue seat 11, a lock tongue 12 and a torsion spring 13, wherein the lock tongue 12 is in a cylindrical structure, one end of the lock tongue 12 is hinged with the lock tongue seat 11, and a limit structure 111 for limiting the rotation range of the lock tongue 12 is arranged on the lock tongue seat 11, so that the lock tongue 12 can only rotate up and down within a 90-degree range between a standing state (i.e. a unfolding position) perpendicular to the transmission rod 3 and a downward dumping state (i.e. a folding position) close to the lock tongue seat 11; the latch hook 2 is fixedly arranged on the vertical side of the window frame 5, one side edge of the latch hook 2 used for striking the latch tongue 12 is an inwards inclined guide bevel edge 21, the lower end of the guide bevel edge 21 is provided with an inlet 23 which can allow the latch tongue 12 to pass through and enter the latch hook inner cavity 22, and the top of the latch hook 2 is a blocking part which can block the latch tongue 12. When the handle 6 drives the transmission rod 3 to move upwards, the transmission rod 3 can drive the lock tongue assembly 1 to move from a first position to a second position, the lock tongue 12 is in an unfolding state and is vertical to the position of the guide bevel edge 21 of the lock hook 2 and is opposite to the position of the guide bevel edge 21, and the lock tongue 12 is staggered with the lock hook 2 in the second position.
The two ends of the latch hook 2 are provided with mounting support legs 24, and the latch hook 2 is overhead mounted on the window frame 5 through the mounting support legs 24. By having the latch hook 2 mounted overhead on the surface of the window frame 5, it is convenient to increase the length of the latch bolt 12 passing through the latch hook 2 when the latch bolt 12 intersects with the latch hook 2, thereby increasing the reliability of the latch bolt 12 and the latch hook 2 in the locked state.
The self-contained locking device 7 and the fire detection automatic closing device 8 of the present embodiment can be adopted by existing technologies which are already well established at present, wherein the existing technologies which can be adopted by the fire detection automatic closing device 8 include but are not limited to the following patents filed by the applicant: "CN 2016109266368-an automatic closing device for fire window", "CN 2017214906909-a temperature-control positioning integrated positioning releaser for fire door and window", "CN 2017108542238-an error-prevention and locking method for fire window and its device", "CN 201721490699X-an automatic temperature-control releaser for fire window-utility model", "CN 2017102169465-an automatic temperature-sensing opening and closing device", "CN 2018106409706-an automatic temperature-sensing opening and closing device", "CN 2019216334710-an automatic temperature-sensing, positioning and window-closing device for fire window).
The action process and the working principle of the embodiment are as follows: ① When the window sash 4 is in an open state, the self-contained locking device 7 is in an unlocked state, the handle 6 is transverse, the lock tongue assembly 1 is positioned at a first position, and the lock tongue 12 is in a standing state and is vertical to the guide bevel edge 21 of the lock hook 2 and is opposite to the guide bevel edge; ② When a fire disaster occurs, the window sash 4 is automatically closed under the action of the fire disaster detection automatic closing device 8, the side surface of the lock tongue 12 can transversely strike the guide bevel edge 21 and rotate downwards under the guide action of the guide bevel edge and the elasticity of the torsion spring until the lock tongue enters the lock hook inner cavity 22 through the inlet 23 and then automatically rises under the action of the torsion spring 13, and at the moment, the lock tongue 12 is inserted into the lock hook 2 to realize the locking of the automatic locking device; ③ When a user rotates the handle 6 downwards to be vertical, the handle 6 drives the transmission rod 3 to move upwards to enable the self-contained locking device 7 to enter a locking state, meanwhile, the transmission rod 3 drives the lock tongue assembly 1 to move upwards to a second position, the lock tongue 12 rotates downwards under the pushing action of the inner side of the top edge of the lock hook 2 against the elastic force of the torsion spring until the lock tongue 12 slides out of the lock hook 2 and then automatically rises under the action of the torsion spring 13, at the moment, the lock tongue 12 is positioned above the lock hook 2, the positions of the lock tongue 12 and the lock hook 2 are staggered, and the automatic locking device is in an unlocking state; ④ When the handle 6 is rotated upwards to the transverse direction by a user, the handle 6 drives the transmission rod 3 to move downwards so as to enable the self-contained locking device 7 to recover the unlocking state, but as the top of the lock hook 2 can block the lock tongue 12, and the lock tongue component 1 is movably arranged in the strip-shaped chute 31 of the transmission rod 3, the lock tongue component 1 is kept motionless under the condition that the transmission rod 3 moves downwards, namely, the lock tongue component 1 cannot automatically reset to the first position, the lock tongue 12 is still positioned above the lock hook 2, and the automatic locking device is still in the unlocking state, so that the window sash 4 can be freely pushed away at the moment; ⑤ When a user pushes away the window sash 4, the lock tongue 12 is separated from the top of the lock hook 2, the lock tongue assembly 1 is automatically reset to the first position without blocking, and the window sash 4 is automatically locked again when waiting for the next closing.
The automatic locking device can realize automatic locking when the window sash is closed, normal use of the automatic locking device is not influenced, operation habit of opening and closing the window sash in normal use is not influenced, the window sash can be pushed open when the handle is horizontal, the window sash can be locked when the handle is vertical, moreover, as the lock tongue is hinged with the lock tongue seat and is elastically connected through the torsion spring, locking and unlocking processes of the automatic locking device are realized through deflection of the lock tongue against the elastic force of the torsion spring, thus the closing force (impact force) required by locking is small, larger extrusion force or impact force cannot occur between the lock tongue and the lock hook in the locking and unlocking processes, even if smaller, the closing force can realize automatic locking, the reliability is good, the requirement on the automatic locking device for fire detection of the fireproof window is lower, the lock tongue and the lock hook can not be damaged or deformed for many times, the durability is good, the silence is better when the window is closed, and compared with the traditional telescopic movement type oblique lock tongue, the deflection type lock tongue is adopted, the installation cost is not required, the window tongue is not required to be installed, the window is low, the installation cost is low, the window is convenient, and the window is easy to install, and the window is air-tight, and the window is convenient to install.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the application referred to in the present application is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.
Claims (5)
1. An automatic locking device for doors and windows is characterized by comprising a lock tongue assembly, a lock hook and a transmission rod;
The spring bolt assembly comprises a spring bolt seat, a spring bolt and a torsion spring, one end of the spring bolt is hinged with the spring bolt seat, and a limit structure for limiting the rotation range of the spring bolt is arranged on the spring bolt seat, so that the spring bolt can only rotate between a furling position close to the spring bolt seat and a unfolding position far away from the spring bolt seat, and two ends of the torsion spring are respectively abutted against the spring bolt and the spring bolt seat, so that the spring bolt can automatically reset to the unfolding position in a free state;
One side edge of the lock hook used for striking the lock tongue is an inwards inclined guide bevel edge, the tail end of the guide bevel edge is provided with an inlet through which the lock tongue can pass and enter an inner cavity of the lock hook, and the outer side of the top edge and/or the bottom edge of the lock hook is provided with a blocking part capable of blocking the lock tongue;
the transmission rod is arranged on the door and window sash and can reciprocate under the drive of the handle, one of the lock tongue component and the lock hook is fixedly arranged on the door and window frame, the other is movably arranged on the transmission rod and can slide along the transmission rod, and the transmission rod can drive the lock tongue component or the lock hook arranged on the transmission rod to move from a first position to a second position through self gravity or a reset spring in a free state, and the lock tongue is in an unfolding state and is opposite to the guide bevel edge position of the lock hook when the transmission rod is positioned in the first position, so that the side surface of the lock tongue can strike the guide bevel edge and rotate under the guide effect of the lock tongue to enter the lock hook cavity and then automatically rotate to reset to realize locking; the lock tongue is of a cylindrical structure; the transmission rod is provided with a strip-shaped chute along the length direction of the transmission rod, and the lock tongue assembly or the lock hook is arranged on the strip-shaped chute through a connecting piece so as to slide back and forth along the strip-shaped chute.
2. The automatic locking device for doors and windows according to claim 1, wherein the locking bolt is perpendicular to the locking bolt seat when in the unfolded position, and parallel to the locking bolt seat when in the folded position, and the rotation range of the locking bolt is 0-90 °.
3. The automatic locking device for doors and windows according to claim 1, wherein the reset spring is installed in the strip-shaped chute, and the spring bolt assembly or the latch hook on the transmission rod can be automatically reset under the action of the reset spring.
4. The automatic locking device for doors and windows according to claim 1, wherein the two ends of the locking hook are provided with mounting legs, and the locking hook is overhead mounted on the transmission rod or the door and window frame through the mounting legs.
5. A door or window comprising a fixed frame and a movable sash, characterized in that it further comprises an automatic locking device for doors or windows according to any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110316442.7A CN112963054B (en) | 2021-03-24 | 2021-03-24 | Automatic locking device for door and window and door and window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110316442.7A CN112963054B (en) | 2021-03-24 | 2021-03-24 | Automatic locking device for door and window and door and window |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112963054A CN112963054A (en) | 2021-06-15 |
| CN112963054B true CN112963054B (en) | 2024-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110316442.7A Active CN112963054B (en) | 2021-03-24 | 2021-03-24 | Automatic locking device for door and window and door and window |
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| CN (1) | CN112963054B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115717504B (en) * | 2022-11-04 | 2023-08-01 | 广东明安防火门窗有限公司 | Enclosed fireproof window |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214835468U (en) * | 2021-03-24 | 2021-11-23 | 滦州市捷澳建材有限公司 | Automatic locking device for door and window and door and window |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29803161U1 (en) * | 1998-02-23 | 1999-08-05 | Gretsch-Unitas GmbH Baubeschläge, 71254 Ditzingen | Locking device |
| JP3982767B1 (en) * | 2006-10-04 | 2007-09-26 | 株式会社ハマダ工商 | Automatic window opening and closing device that locks and unlocks windows and opens and closes them |
| CN201723021U (en) * | 2009-08-08 | 2011-01-26 | 柳州市泽瑞窗业有限公司 | Anti-theft door/window lock with handle for driving slide rods |
| CN206233696U (en) * | 2016-10-20 | 2017-06-09 | 刘祥 | The door and window automatic blocking lock body mechanism of steel wire connection |
| JP6823142B1 (en) * | 2019-11-14 | 2021-01-27 | アルメタックス株式会社 | Window opening / closing lock device |
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2021
- 2021-03-24 CN CN202110316442.7A patent/CN112963054B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214835468U (en) * | 2021-03-24 | 2021-11-23 | 滦州市捷澳建材有限公司 | Automatic locking device for door and window and door and window |
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| CN112963054A (en) | 2021-06-15 |
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