CN210370296U - Opening and closing installation device - Google Patents
Opening and closing installation device Download PDFInfo
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- CN210370296U CN210370296U CN201920789127.4U CN201920789127U CN210370296U CN 210370296 U CN210370296 U CN 210370296U CN 201920789127 U CN201920789127 U CN 201920789127U CN 210370296 U CN210370296 U CN 210370296U
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Abstract
The utility model discloses an opening and closing installation device, which comprises a hidden hinge, a first connecting part, a second connecting part and a connecting rod assembly, wherein the first connecting part is provided with a first guide groove, the second connecting part is provided with a second guide groove, the connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged with the first connecting part, the other end of the first connecting rod is provided with a first guide part matched with the second guide groove, one end of the second connecting rod is hinged with the second connecting part, and the other end of the second connecting rod is provided with a second guide part matched with the first guide groove; wind props the subassembly and includes wind brace seat and wind brace connecting rod, and wind brace seat is established in the first connecting part outside, and the one end and the wind brace seat hinge of wind brace connecting rod prop the connecting rod and have and can bypass the bending or the sunken of second connecting rod. The door window structure avoids occupying too much door and window opening and closing space, is more compact in structure, avoids punching on the surface of the door and window, and is more convenient to install and operate.
Description
Technical Field
The utility model is used for building door and window field especially relates to an installation device opens and shuts.
Background
Along with the development of the building industry, the building doors and windows, especially the fireproof windows installed on the outer walls, have higher requirements on the performance of blocking smoke and flame, and prevent the occurrence of fire from causing great loss. Most of the existing building doors and windows are installed by adopting non-hidden hinges or hidden hinges, wherein holes need to be drilled on the surfaces of the doors and windows when the non-hidden hinges are installed, the installation is complicated, and the overall appearance of the building doors and windows is also damaged; although the hidden hinge can solve the above problems, it occupies a large opening and closing space of the door and window, and thus it is inconvenient to install the wind brace.
In addition, in order to have better fire-proof performance, the building doors and windows are required to have the function of automatically closing when a fire disaster happens. Meanwhile, the building door and window can be flexibly opened and closed in the daily use process, and the operation is convenient. However, in the prior art, in order to realize the function of automatic closing, an automatic closing device with a complex structure needs to be arranged on the fireproof door and window, so that the door and window is large in occupied space, poor in opening and closing flexibility in the daily use process and inconvenient to operate.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve one of the technical problem that exists among the prior art at least, provide an installation device opens and shuts, it can perfectly fuse hidden hinge and wind brace, avoids occuping too much door and window space of opening and shutting, and the structure is compacter, simultaneously, avoids punching on door and window surface, and the installation operation is more convenient.
The utility model provides a technical scheme that its technical problem adopted is: an opening and closing installation device comprises
The hidden hinge comprises a first connecting part, a second connecting part and a connecting rod assembly, wherein the first connecting part and the second connecting part are staggered to form an interval along a direction perpendicular to the opening and closing direction of the hidden hinge, the connecting rod assembly is arranged in the interval, a first guide groove is formed in the first connecting part, a second guide groove is formed in the second connecting part, the connecting rod assembly comprises a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are crossed and hinged at the crossed position, one end of the first connecting rod is hinged with the first connecting part, the other end of the first connecting rod is provided with a first guide part matched with the second guide groove, one end of the second connecting rod is hinged with the second connecting part, and the other end of the second connecting rod is provided with a second guide part matched with the first guide groove;
wind props the subassembly, prop seat and wind including wind and prop the connecting rod, wind props the seat and establishes the first connecting part outside, wind props the connecting rod and can hide the hinge in-process and advance out the interval, wind prop the one end of connecting rod with wind props the seat articulated, wind props the connecting rod and has and can bypass the bending or the sunken of second connecting rod.
Preferably, the wind brace is connected with the first connecting rod.
Preferably, the first connecting rod has a first bend along a direction perpendicular to the opening and closing direction of the hidden hinge, one end of the first connecting rod is attached to the first connecting part, and the other end of the first connecting rod is attached to the second connecting part; the second connecting rod is provided with a second bend, one end of the second connecting rod is attached to the first connecting part, and the other end of the second connecting rod is attached to the second connecting part.
Preferably, the temperature-controlled closing device is further provided, and comprises
The sliding block can be matched with the door sash or the door and window frame and can reciprocate along the door sash or the door and window frame to be far away from or close to the pivot axis of the door sash;
the locking mechanism can lock the sliding block on a door window sash or a door window frame matched with the sliding block;
a slider release mechanism capable of unlocking the locking mechanism to release the slider upon detection of a fire;
the force application part provides driving force for closing the door and window sash around the pivot axis;
and the other end of the wind bracing connecting rod is hinged with the sliding block.
Preferably, the locking mechanism comprises a positioning clamping plate, the positioning clamping plate is installed on the sliding block through a positioning shaft, positioning clamping teeth capable of being directly or indirectly clamped with the door and window sash or the door and window frame matched with the sliding block are arranged on the positioning clamping plate, and the positioning clamping plate can rotate around the positioning shaft to be clamped or separated with the door and window sash or the door and window frame.
Preferably, a glass ball mounting seat is arranged on the sliding block, a glass ball mounting position is arranged on the positioning clamping plate, the sliding block releasing mechanism comprises a temperature-sensing glass ball arranged between the glass ball mounting seat and the glass ball mounting position, the temperature-sensing glass ball limits the positioning clamping plate and enables the positioning clamping plate to be clamped with a door window sash or a door window frame matched with the sliding block, the temperature-sensing glass ball breaks after a fire disaster happens, and the positioning clamping plate rotates around a positioning shaft to be separated from the door window sash.
Preferably, the temperature-sensitive glass ball is supported between the glass ball mounting seat and the glass ball mounting position, and the glass ball mounting seat is provided with an adjusting screw.
Preferably, the slider is provided with a positioning shaft seat, the positioning shaft is arranged on the positioning shaft seat, the left edge and the right edge of the positioning clamping plate are bent to form positioning shaft arms which extend to two sides of the positioning shaft seat and are connected with the positioning shaft, the lower end of the part of the positioning clamping plate between the positioning shaft arms is provided with positioning clamping teeth, and the upper end of the part of the positioning clamping plate between the positioning shaft arms is provided with a glass ball mounting position.
Preferably, still including establishing the positioning seat in the section bar groove of door and window fan or door and window frame, be equipped with on the positioning seat can with the locating latch complex locating hole.
Preferably, the force application part comprises a spring, one end of the spring is connected with the door and window sash or the door and window frame matched with the sliding block, the other end of the spring is connected with the sliding block, and the spring can drive the sliding block to be away from the pivot axis of the door and window sash after the sliding block is released, so that the driving force for closing the door and window is provided.
One of the above technical solutions has at least one of the following advantages or beneficial effects: the hidden hinge realizes the installation of the door leaf and the window sash and realizes the opening and closing function. The wind bracing assembly realizes the functions of door leaf and window sash opening and positioning bracing. This technical scheme is with hidden hinge and the perfect integration of wind brace subassembly, avoids occupying too much door and window space that opens and shuts, and the structure is compacter, simultaneously, avoids punching on door and window surface, and the installation operation is more convenient.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural view of an embodiment of the present invention in an open state;
FIG. 2 is a schematic structural view of the embodiment shown in FIG. 1 in a closed state;
FIG. 3 is a schematic view of the hidden hinge of the embodiment shown in FIG. 1 in a closed position;
FIG. 4 is a schematic diagram of the temperature controlled closure device of one embodiment of FIG. 1 prior to breakage of the temperature sensitive glass spheres;
FIG. 5 is a schematic view of the temperature controlled closure device of one embodiment of FIG. 1 after the temperature sensitive glass ball has broken;
FIG. 6 is a schematic view of a slider configuration of the temperature controlled closure device of one embodiment shown in FIG. 1;
FIG. 7 is a side view of the positioning card configuration of the temperature controlled closure device of one embodiment shown in FIG. 1;
FIG. 8 is a rear view of the thermal closure positioning card configuration of one embodiment shown in FIG. 1.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the present invention, if there is a description of directions (up, down, left, right, front and back), it is only for convenience of description of the technical solution of the present invention, and it is not intended to indicate or imply that the technical features indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, "a plurality" means one or more, "a plurality" means two or more, "more than", "less than", "more than", and the like, which means that the number is not included; the terms "above", "below", "within" and the like are to be understood as including the number. In the description of the present invention, if there is any description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the present invention, unless otherwise explicitly defined, the terms "set," "mounted," "connected," and the like are to be understood in a broad sense, and may be directly connected or indirectly connected through an intermediate medium, for example; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.
Door and window fan (door leaf or casement) adopt to hide the hinge mount on door and window frame (door frame or window frame), and the door and window fan can be opened or close as the pivot with hiding the hinge, the utility model discloses can adopt two kinds of mounting means in the use: the first type, the second connecting part is matched with a door and window sash, and the first connecting part is matched with a door and window frame; and in the second type, the first connecting part is matched with a door sash, and the second connecting part is matched with a door frame. The embodiments of the present invention are described in detail only in the first installation mode.
An embodiment of the utility model provides an installation device opens and shuts, include
The hidden hinge, as shown in fig. 1, 2 and 3, comprises a first connecting part 11, a second connecting part 12 and a connecting rod assembly, the door and window sash and the door and window frame are generally formed into a frame by using a profile, and the first connecting part 11 and the second connecting part 12 can be directly connected with the frame of the door and window sash and the door and window frame or embedded in the existing groove of the profile. Said first connecting part 11 and said second connecting part 12 are staggered in a direction perpendicular to the opening and closing of said hidden hinge to form a space, in which said connecting-rod assembly is arranged, and connecting a first connecting part 11 and a second connecting part 12, the first connecting part 11 having a first guide groove 13, the second connecting part 12 is provided with a second guide groove 14, the connecting rod assembly comprises a first connecting rod 15 and a second connecting rod 16, the first connecting rod 15 and the second connecting rod 16 are crossed, and is hinged in a crossed position, one end of said first connecting rod 15 being hinged to said first connecting element 11, the other end of the first link 15 is provided with a first guide member 17 engaged with the second guide groove 14, one end of the second connecting rod 16 is hinged with the second connecting part 12, and the other end of the second connecting rod 16 is provided with a second guide part 18 matched with the first guide groove 13; the first guide member 17 and the second guide member 18 may employ pins, sliders, or the like. The first and second connecting members 11 and 12 can be hidden in the door sash and the jamb of the door sash, and the door sash can be opened or closed with the hidden hinge as a pivot in cooperation with the link assembly.
Wind props the subassembly, prop seat 21 and wind brace connecting rod 22 including wind, wind props seat 21 and is used for being fixed in the door and window frame with wind brace connecting rod 22, wind props seat 21 and establishes first connecting part 11 the outside, wind brace connecting rod 22 can hide the hinge in-process and advance out of opening and shutting the interval, wind brace connecting rod 22 one end with wind props seat 21 articulated, wind brace connecting rod 22 has and can walks around the crooked or sunken 23 of second connecting rod 16 makes wind brace connecting rod 22 and wind brace seat 21's articulated position as far as possible near the pivot of hiding the hinge.
Referring to fig. 1, in the opened state of the door sash, the wind bracing link 22 connects the door sash and the door frame around the end of the second link 16 through the bend or the recess 23 and supports the door sash at a certain angle, when the door sash is closed, the second link 16 pushes the second guide member 18 to move away from the pivot along the first guide groove 13, and the wind bracing link 22 automatically moves away from the pivot under the pushing action of the door sash, referring to fig. 2, until the door sash is closed. The ingenious application of this embodiment wind brace connecting rod 22 and the characteristics of second connecting rod 16 motion trail, with hidden hinge and the perfect integration of wind brace subassembly, avoid taking too much door and window space that opens and shuts, the structure is compacter, simultaneously, avoids punching on door and window surface, and installation and operation is more convenient.
In some embodiments, referring to fig. 1, the wind brace 21 is connected to the first connecting rod 15 to ensure the stability of the wind brace 21.
Referring to fig. 3, in a direction perpendicular to the opening and closing direction of the hidden hinge, the first link 15 has a first bend, one end of the first link 15 is attached to the first connection part 11, and the other end of the first link 15 is attached to the second connection part 12; second connecting rod 16 has the second and buckles, second connecting rod 16 one end with first connecting part 11 laminates, second connecting rod 16 the other end with second connecting part 12 laminates, and first connecting rod 15, second connecting rod 16 adopt the design of buckling to solve assembly space on the one hand, and on the other hand also increases laminating back structural connection's stability.
Referring to fig. 4 and 5, the temperature-controlled closing device is further provided and comprises
A slider 31 capable of cooperating with the door sash or frame and capable of reciprocating along the door sash or frame so as to be away from or close to the pivot axis of the door sash;
the locking mechanism can lock the sliding block 31 on a door and window sash or a door and window frame matched with the sliding block 31;
a slider release mechanism capable of unlocking the latch mechanism to release the slider 31 upon detection of a fire;
a force application member 32 for providing a driving force for closing the door and window sash around the pivot axis;
wherein, the other end of the wind bracing connecting rod 22 is hinged with the sliding block 31.
When not taking place the conflagration, slider 31 is locked on the door and window fan by locking mechanism, and the door and window fan that the flexible resistance of wind brace connecting rod 22 will be opened is injectd in specific angle, and after taking place the fire disaster, thereby slider release mechanism can unblock locking mechanism release slider 31, and thereby the door and window fan free motion can be followed to slider 31, and the door and window fan is closed and need not to overcome the flexible resistance of wind brace connecting rod 22 to accomplish under the effect of application of force part 32 and close, the utility model discloses can be when taking place the conflagration self-closing door and window, simultaneously, simple structure, compactness practice thrift the door and window space.
The door and window sash is generally formed by a profile, and the embodiment utilizes a profile groove of the profile as a guide structure of the sliding block 31, namely, the sliding block 31 is installed in the profile groove of the door and window sash, and the profile groove also comprises a guide groove specially formed on the door and window sash for installing the sliding block 31.
The locking mechanism can adopt a positioning buckle, a positioning screw and other structures to fix the sliding block 31 on the door and window sash, preferably, the locking mechanism comprises a positioning clamping plate 33, the positioning clamping plate 33 is installed on the sliding block 31 through a positioning shaft 34, the positioning clamping plate 33 is provided with a positioning clamping tooth 35 which can be directly or indirectly clamped with the door and window sash or the door and window frame matched with the sliding block 31, and the positioning clamping plate 33 can rotate around the positioning shaft 34 to be clamped or separated with the door and window sash or the door and window frame. The positioning shaft 34 can make the overturning of the positioning card plate 33 smoother.
In order to cooperate with the locking mechanism, the temperature control release mechanism can adopt the structural form of a temperature sensor, a control unit and a driving part to realize the unlocking operation of the locking mechanism, preferably, a glass ball mounting seat 36 is arranged on the sliding block 31, a glass ball mounting position 37 is arranged on the positioning clamping plate 33, the sliding block release mechanism comprises a temperature sensing glass ball 38 arranged between the glass ball mounting seat 36 and the glass ball mounting position 37, the temperature sensing glass ball 38 limits the positioning clamping plate 33 and enables the positioning clamping plate 33 to be clamped with a door window sash or a door window frame matched with the sliding block 31, the temperature sensing glass ball 38 is broken after a fire occurs, and the positioning clamping plate 33 rotates around the positioning shaft 34 to be separated from the door window sash.
The temperature-sensing glass ball 38 can be stretched between the glass ball mounting seat 36 and the glass ball mounting position 37, the positioning clamping plate 33 is limited, and the positioning clamping plate 33 is clamped with the door and window sash, or the temperature-sensing glass ball 38 is supported between the glass ball mounting seat 36 and the glass ball mounting position 37, and the glass ball mounting seat 36 is provided with an adjusting screw 39. The adjusting screw 39 is arranged in a screw hole of the glass ball mounting seat 36, so that the temperature-sensitive glass ball 38 can be conveniently mounted and adjusted between the glass ball mounting seat 36 and the glass ball mounting position 37.
Referring to fig. 6-8, a positioning shaft seat 310 is arranged on the slider 31, the positioning shaft 34 is mounted on the positioning shaft seat 310, the left and right edges of the positioning snap-gauge 33 are bent to form positioning shaft arms 311 extending to the two sides of the positioning shaft seat 310 and connected with the positioning shaft 34, the positioning shaft arms 311 are symmetrically designed, the balance is better, the lower end of the positioning snap-gauge 33 between the positioning shaft arms 311 is provided with a positioning snap tooth 35, and the upper end of the positioning snap-gauge 33 between the positioning shaft arms 311 is provided with a glass ball mounting position 37. The glass ball mounting position 37 can be designed with a groove or a hole, etc. for limiting the temperature-sensitive glass ball 38.
Referring to fig. 4 and 5, in order to maintain the structural integrity of the door and window sash as much as possible, the door and window sash further comprises a positioning seat 312 disposed in the profile groove of the door and window sash or the door and window frame, and the positioning seat 312 is provided with a positioning hole capable of being matched with the positioning latch 35. After the positioning latch 35 is inserted into the positioning hole, the sliding block 31 is locked with the door and window sash, and after the positioning latch 35 is separated from the positioning hole, the sliding block 31 is separated from the door and window sash. The positioning seat 312 can be arranged on the side wall or the bottom of the profile groove of the door and window sash, preferably, the positioning seat 312 is arranged at the bottom of the profile groove of the door and window sash, the bottom of the sliding block 31 is provided with a positioning seat guide groove 313, and the sliding block 31 is provided with a through hole or a through groove for the positioning latch 35 to pass through so as to be matched with the positioning hole. The positioning latch 35 penetrates through the through hole or the through groove to be matched with the positioning hole, and the whole structure is simpler. The positioning seat 312 includes a guiding portion embedded in the positioning seat guiding groove 313 and a limiting portion disposed at an end of the guiding portion close to the pivot of the door/window sash, and a section of the limiting portion is larger than that of the guiding portion for limiting the slider 31 from moving to one side of the pivot of the door/window sash. The positioning seat 312 can cooperate with the positioning hole to cooperate with the positioning latch 35.
The force application member 32 may be, but is not limited to, spring driven, electrically driven, or pneumatically driven. The electric drive is driven by a motor, a gear and other linkage modes. The pneumatic drive is driven by an air cylinder. As the utility model discloses preferred embodiment, force application part 32 includes the spring, spring one end with slider 31 complex door and window fan or door and window frame be connected, the other end is connected with slider 31, the spring can drive slider 31 after slider 31 releases and keep away from the pivot axis of door and window fan to under the interact through slider 31, wind brace connecting rod 22 and door and window fan, thereby provide the closed drive power of door and window. In the embodiment, the door and window sash does not need to overcome the driving force of the force application part 32 in the daily use process, so that the opening and closing flexibility of the door and window sash in the daily use process is better.
The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (10)
1. The utility model provides an installation device opens and shuts which characterized in that: comprises that
The hidden hinge comprises a first connecting part, a second connecting part and a connecting rod assembly, wherein a first guide groove is formed in the first connecting part, a second guide groove is formed in the second connecting part, the connecting rod assembly comprises a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are crossed and hinged at the crossed position, one end of the first connecting rod is hinged with the first connecting part, a first guide part matched with the second guide groove is arranged at the other end of the first connecting rod, one end of the second connecting rod is hinged with the second connecting part, and a second guide part matched with the first guide groove is arranged at the other end of the second connecting rod;
wind props the subassembly, including wind brace seat and wind brace connecting rod, wind brace seat is established the first connecting part outside, the one end of wind brace connecting rod with wind brace seat is articulated, the wind brace connecting rod has and can bypass the bending or the sunken of second connecting rod.
2. The opening and closing mounting device of claim 1, wherein: the wind brace is connected with the first connecting rod.
3. The opening and closing mounting device of claim 1, wherein: the first connecting rod is provided with a first bend along the direction perpendicular to the opening and closing direction of the hidden hinge, one end of the first connecting rod is attached to the first connecting part, and the other end of the first connecting rod is attached to the second connecting part; the second connecting rod is provided with a second bend, one end of the second connecting rod is attached to the first connecting part, and the other end of the second connecting rod is attached to the second connecting part.
4. The opening and closing mounting device of claim 1, wherein: also comprises
A temperature controlled closure device comprising
The sliding block can be matched with the door sash or the door and window frame and can reciprocate along the door sash or the door and window frame to be far away from or close to the pivot axis of the door sash;
the locking mechanism can lock the sliding block on a door window sash or a door window frame matched with the sliding block;
a slider release mechanism capable of unlocking the locking mechanism to release the slider upon detection of a fire;
the force application part provides driving force for closing the door and window sash around the pivot axis;
and the other end of the wind bracing connecting rod is hinged with the sliding block.
5. The opening and closing mounting device of claim 4, wherein: the locking mechanism comprises a positioning clamping plate, the positioning clamping plate is installed on the sliding block through a positioning shaft, positioning clamping teeth capable of being directly or indirectly clamped with the door and window sash or the door and window frame matched with the sliding block are arranged on the positioning clamping plate, and the positioning clamping plate can rotate around the positioning shaft to be clamped or separated with the door and window sash or the door and window frame.
6. The opening and closing mounting device of claim 5, wherein: the glass ball mounting seat is arranged on the sliding block, the glass ball mounting position is arranged on the positioning clamping plate, the sliding block releasing mechanism comprises a temperature-sensing glass ball arranged between the glass ball mounting seat and the glass ball mounting position, the temperature-sensing glass ball limits the positioning clamping plate and enables the positioning clamping plate to be clamped with a sliding block-matched door window sash or a door window frame, the temperature-sensing glass ball is broken after a fire disaster occurs, and the positioning clamping plate rotates around the positioning shaft to be separated from the door window sash.
7. The opening and closing mounting device of claim 6, wherein: the temperature-sensing glass ball is supported between the glass ball mounting seat and the glass ball mounting position, and the glass ball mounting seat is provided with an adjusting screw.
8. The opening and closing mounting device of claim 5, wherein: the positioning clamping plate is characterized in that a positioning shaft seat is arranged on the sliding block, a positioning shaft is arranged on the positioning shaft seat, the left edge and the right edge of the positioning clamping plate are bent to form positioning shaft arms which extend to two sides of the positioning shaft seat and are connected with the positioning shaft, positioning clamping teeth are arranged at the lower end of the part, between the positioning shaft arms, of the positioning clamping plate, and a glass ball mounting position is arranged at the upper end of the part, between the positioning shaft arms, of.
9. The opening and closing mounting device of claim 5, wherein: still including establishing the positioning seat in the section bar groove of door and window fan or door and window frame, be equipped with on the positioning seat can with positioning latch complex locating hole.
10. The opening and closing mounting device of claim 4, wherein: the force application component comprises a spring, one end of the spring is connected with the door and window sash matched with the sliding block or the door and window frame, the other end of the spring is connected with the sliding block, and the spring can drive the sliding block to be away from the pivot axis of the door and window sash after the sliding block is released, so that the driving force for closing the door and window is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920789127.4U CN210370296U (en) | 2019-05-28 | 2019-05-28 | Opening and closing installation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920789127.4U CN210370296U (en) | 2019-05-28 | 2019-05-28 | Opening and closing installation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210370296U true CN210370296U (en) | 2020-04-21 |
Family
ID=70262179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920789127.4U Active CN210370296U (en) | 2019-05-28 | 2019-05-28 | Opening and closing installation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210370296U (en) |
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2019
- 2019-05-28 CN CN201920789127.4U patent/CN210370296U/en active Active
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