CN211666507U - Manual-automatic integrated window opening device - Google Patents
Manual-automatic integrated window opening device Download PDFInfo
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- CN211666507U CN211666507U CN201820942362.6U CN201820942362U CN211666507U CN 211666507 U CN211666507 U CN 211666507U CN 201820942362 U CN201820942362 U CN 201820942362U CN 211666507 U CN211666507 U CN 211666507U
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- bevel gear
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- connecting rod
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Abstract
The utility model provides a manual-automatic integrated window opening device, which comprises a window, a window frame, a window opening mechanism, a reversing mechanism, a push rod and a slide rail arranged at the top of the window, wherein one end of the push rod is hinged with a slide block matched with the slide rail, and the other end of the push rod is connected with a first servo motor on the window frame; the window opening mechanism comprises a driving rod, a transmission gear, a first bevel gear, a second bevel gear and a handle on the window, the driving rod is arranged on the side edge of the window, one end of the driving rod is connected with a rack meshed with the transmission gear, a transmission shaft of the transmission gear is connected with one side of the first bevel gear, the other side of the first bevel gear is connected with the handle through a rotating shaft, the second bevel gear is located below the first bevel gear and meshed with the first bevel gear, and the transmission shaft of the second bevel gear is connected with a second servo motor. The door and window can be freely switched between manual and electric opening and closing, and the use is very convenient.
Description
Technical Field
The utility model belongs to the technical field of automatic door and window, concretely relates to manual-automatic formula windowing facility.
Background
Along with the improvement of life quality, people have higher and higher requirements on the environment quality of home, and the electric doors and windows are widely applied to modern life. The electric door and window is driven by electric power to open and close, so that the door and window cannot be opened once power failure or electricity is exhausted, and inconvenience is brought to life of people.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a manual-automatic formula windowing facility can switch over manual and electric switch door and window freely, and it is very convenient to use.
In order to realize the utility model discloses a purpose, the utility model discloses a technical scheme be:
a manual-automatic integrated window opening device comprises a window, a window frame, a window opening mechanism, a reversing mechanism, a push rod and a slide rail arranged at the top of the window, wherein one end of the push rod is hinged with a slide block matched with the slide rail, and the other end of the push rod is connected with a first servo motor on the window frame;
the window opening mechanism comprises a driving rod, a transmission gear, a first bevel gear, a second bevel gear and a handle on the window, the driving rod is arranged on the side edge of the window, one end of the driving rod is connected with a rack meshed with the transmission gear, a transmission shaft of the transmission gear is connected with one side of the first bevel gear, the other side of the first bevel gear is connected with the handle through a rotating shaft, the second bevel gear is positioned below the first bevel gear and meshed with the first bevel gear, and a transmission shaft of the second bevel gear is connected with a second servo motor;
the reversing mechanism comprises a main connecting rod, an auxiliary connecting rod and a limiting rod, the limiting rod is arranged in the length direction of the top end of the window and can slide along the length direction, one end of the limiting rod is connected with the driving rod through a flexible steel bar, the flexible steel bar is arranged along the side edge of the window, one end of the main connecting rod is in sliding connection with the limiting rod, the main connecting rod can slide in the length direction of the limiting rod, and the other end of the main connecting rod is hinged with the window frame; one end of the auxiliary connecting rod is hinged with the limiting rod, and the other end of the auxiliary connecting rod is hinged with the main connecting rod.
Under the condition of electrifying, the first servo motor drives the second bevel gear to rotate, so that the first bevel gear is driven to rotate, the coaxial transmission gear is driven to rotate, and the driving rod is driven to move up and down through the transmission chain. Meanwhile, under the condition of no power drive, the first bevel gear can be directly driven to rotate by the rotating handle to drive the transmission gear to rotate, and manual and automatic free switching is realized.
When the handle is rotated to the lowest position, the rack is positioned at the highest position, the rack pushes the limiting rod upwards, the auxiliary connecting rod hinged on the limiting rod drives one end of the main connecting rod to move in the same direction as the limiting rod, the other end of the main connecting rod slides on the limiting rod and moves relative to the limiting rod, so that the main connecting rod moves to be flush with the window, the window is in an inward opening state, and at the moment, the first servo motor drives the push rod to rotate towards one indoor side and drives the window to be horizontally opened towards the indoor through the slide block and the slide rail; the first servo motor drives the push rod to rotate towards one outdoor side, and the window is driven to rotate towards the outdoor side through the sliding block and the sliding rail to close the window.
When the handle is rotated to the highest position, the rack is positioned at the lowest position, the rack pulls the limiting rod downwards, the auxiliary connecting rod hinged on the limiting rod drives one end of the main connecting rod to move in the same direction as the limiting rod, the other end of the main connecting rod slides on the limiting rod and moves relative to the limiting rod, so that the main connecting rod and the auxiliary connecting rod form a certain angle, the window is pushed away from the window frame and is in a state of falling inwards, at the moment, the first servo motor drives the push rod to rotate towards one indoor side and drives the window to incline and fall inwards through the sliding block and the sliding rail, meanwhile, one end of the main connecting rod slides on the limiting rod, the other end of the main connecting rod rotates due to being hinged with the window frame, the auxiliary connecting rod rotates due to the fact that the two ends are respectively hinged with the limiting rod and the main connecting rod, triangular supports are formed among the main connecting rod, the auxiliary; the first servo motor drives the push rod to rotate towards one side of the outdoor, and the window which falls inwards is pulled back to the closing position.
Preferably, the rotating shaft is a rectangular shaft.
Preferably, the bottom of the window frame is provided with an insertion hole, one end of the rack is provided with a bolt corresponding to the insertion hole, and when the handle rotates to the lowest position, the bolt of the rack is separated from the insertion hole; when the handle is rotated to the highest position, the bolt of the rack is inserted into the insertion hole.
Further preferably, a bolt is arranged at one end of the limiting rod, which is far away from the window opening mechanism, and a jack corresponding to the bolt is arranged on the window frame; when the handle rotates to the lowest position, the bolt of gag lever post inserts in the jack, when the handle rotates to the highest position, the bolt of gag lever post with the jack breaks away from.
Further preferably, when the handle is rotated to the horizontal, the equal inserted pins of the limiting rod and the rack are inserted into the corresponding insertion holes.
Preferably, the main connecting rod is provided with a sliding block at the connecting end with the limiting rod, and the limiting rod is provided with a sliding groove corresponding to the sliding block, so that the sliding connection between the main connecting rod and the limiting rod is realized.
Preferably, the main connecting rod is provided with a limiting column facing the limiting rod at the connecting end with the window frame, and the limiting rod is provided with a limiting groove corresponding to the limiting column.
Further preferably, one end of the limiting groove, which is far away from the flexible steel bar, is in smooth transition with the surface of the limiting rod.
Further preferably, when the handle rotates to the highest position, the limiting column is just clamped at one end, close to the flexible steel bar, of the limiting groove.
Preferably, the first servo motor and the second servo motor are both arranged in the section bar of the window frame.
The beneficial effects of the utility model reside in that:
1. the utility model discloses a manual-automatic formula windowing facility is under the circumstances of circular telegram, and first servo motor drives second bevel gear and rotates to the rotation of the first bevel gear of drive drives coaxial drive gear and rotates, drives the exit up-and-down motion of actuating lever at the casing through drive chain. Meanwhile, under the condition of no power drive, the first bevel gear can be directly driven to rotate by the rotating handle to drive the transmission gear to rotate, and manual and automatic free switching is realized.
2. By arranging the reversing mechanism, the operation of opening and closing the window and the operation of falling and closing the window can be freely switched.
3. The driving rod is provided with a sliding groove, and the outlet of the shell is provided with a lug which is matched with the sliding groove, so that the limiting effect is achieved, and the driving rod can stably move up and down.
4. The rotating shaft of the handle is set to be a rectangular shaft, so that the handle can have two gears of 90-degree rotation and 180-degree rotation, the window opening and closing switching device is suitable for freely switching opening, inward falling and closing of a window, and the positioning is accurate.
5. The bottom of the window frame is provided with an insertion hole and a bolt, and when the handle rotates to the lowest position, the bolt of the rack is separated from the insertion hole, so that the window frame is suitable for the condition of opening in a window; when the handle rotates to the highest position, the bolt of the rack is inserted into the jack, so that a good positioning effect can be achieved, and the handle is suitable for the condition of falling in a window.
6. Set up the spacing post towards the gag lever post on the main connecting rod, set up the spacing groove that corresponds spacing post on the gag lever post, the spacing groove is kept away from the one end of flexible billet with the surface of gag lever post is smooth transition. Can fix a position main connecting rod better in the motion process of gag lever post and main connecting rod, when the handle rotated to the highest point, spacing post just blocked in the spacing groove is close to the one end of flexible billet, can die the lock of main connecting rod, is favorable to the stability of inwardly opened window, and when the smooth transition of spacing groove was favorable to falling in the window, spacing post on the main connecting rod can easily break away from the gag lever post.
Drawings
Fig. 1 is a schematic structural view of the manual-automatic integrated window opening device of the present invention.
Fig. 2 is a schematic structural view of the windowing mechanism.
Fig. 3 is a top view of the windowing device.
Fig. 4 is a schematic view of a window in a state of being tilted upside down.
Fig. 5 is a schematic view of the window in an inward opening state.
Fig. 6 is a schematic structural view of embodiment 2.
Labeled as: 1. the window comprises a window body, 2, a window frame, 20, a window opening mechanism, 21, a transmission gear, 22, a rack, 23, a driving rod, 24, a first bevel gear, 25, a rotating shaft, 26, a handle, 27, a second bevel gear, 28, a second servo motor, 30, a sliding rail, 31, a sliding block, 32, a push rod, 40, a reversing mechanism, 41, a main connecting rod, 42, an auxiliary connecting rod, 43, a limiting rod, 44, a limiting groove, 45, a limiting column, 46, a flexible steel rod, 47 and a plug pin.
Detailed Description
In order to illustrate the technical solution of the present invention more clearly and in detail, the present invention is further described below by referring to the following embodiments. The following examples are only for the purpose of specifically illustrating the method of implementing the present invention, and do not limit the scope of the present invention.
Example 1
As shown in fig. 1-5, a manual-automatic integrated window opening device comprises a window 1, a window frame 2, a window opening mechanism 20, a reversing mechanism 40, a push rod 32 and a slide rail 30 arranged at the top of the window 1, wherein one end of the push rod 32 is hinged to a slide block 31 matched with the slide rail 30, and the other end of the push rod 32 is connected to a first servo motor on the window frame 2;
the windowing mechanism 20 comprises a driving rod 23, a transmission gear 21, a first bevel gear 24, a second bevel gear 27 and a handle 26 on the window, wherein the driving rod 23 is arranged at the side edge of the window 1, one end of the driving rod is connected with a rack 22 meshed with the transmission gear 21, a transmission shaft of the transmission gear 21 is connected with one side of the first bevel gear 24, the other side of the first bevel gear 24 is connected with the handle 26 through a rotating shaft 25, the second bevel gear 27 is positioned below the first bevel gear 24 and meshed with the first bevel gear 24, and a transmission shaft of the second bevel gear 27 is connected with a second servo motor 28;
the reversing mechanism 40 comprises a main connecting rod 41, an auxiliary connecting rod 42 and a limiting rod 43, the limiting rod 43 is arranged in the length direction of the top end of the window 1 and can slide along the length direction, one end of the limiting rod 43 is connected with the driving rod 23 through a flexible steel bar 46, the flexible steel bar 46 is arranged along the side edge of the window, one end of the main connecting rod 41 is in sliding connection with the limiting rod 43, so that the main connecting rod 41 can slide in the length direction of the limiting rod 43, and the other end of the main connecting rod 41 is hinged to the window frame 2; one end of the auxiliary connecting rod 42 is hinged with the limiting rod 43, and the other end of the auxiliary connecting rod 42 is hinged with the main connecting rod 41.
When the power is supplied, the first servo motor drives the second bevel gear 27 to rotate, so as to drive the first bevel gear 24 to rotate, drive the coaxial transmission gear 21 to rotate, and drive the driving rod to move up and down through the rack 22. Meanwhile, under the condition of no power drive, the first bevel gear 24 can be directly driven to rotate by the rotating handle 26 to drive the transmission gear 21 to rotate, so that manual and automatic free switching is realized.
When the handle 26 is rotated to the lowest position, the rack 22 is located at the highest position, the rack 22 pushes the limiting rod 43 upwards, the auxiliary connecting rod 42 hinged to the limiting rod 43 drives one end of the main connecting rod 41 to move in the same direction as the limiting rod 43, the other end of the main connecting rod 41 slides on the limiting rod 43, the limiting rod 43 moves relatively, the main connecting rod 41 moves to be flush with the window 1, the window 1 is in an inward opening state, at the moment, the first servo motor drives the push rod 32 to rotate towards one indoor side, and the window 1 is driven to be horizontally opened towards the indoor side through the sliding block 31 and the sliding rail 30; the first servo motor drives the push rod 32 to rotate towards the outdoor side, and drives the window 1 to rotate towards the outdoor side through the slide block 31 and the slide rail 30 to close the window 1.
When the handle 26 is rotated to the highest position, the rack 22 is located at the lowest position, the rack 22 pulls the limit rod 43 downwards, the auxiliary link 42 hinged on the limit rod 43 drives one end of the main link 41 to move in the same direction as the limit rod 43, the other end of the main link 41 slides on the limit rod 43 and moves relative to the limit rod 42, so that the main link 41 and the auxiliary link 42 form a certain angle, the window 1 is pushed away from the window frame 2 and is in a state of falling inwards, at the same time, the first servo motor drives the push rod 32 to rotate towards one indoor side and drives the window 1 to incline inwards through the slide block 31 and the slide rail 30, meanwhile, one end of the main link 41 slides on the limit rod 43, the other end of the main link 41 rotates due to being hinged with the window frame 2, the auxiliary link 42 respectively hinges at two ends to the limit rod 43 and the main link 41 to rotate, a triangular support is formed among the main link 41, the auxiliary link 42 and the limit rod 43, and the top edge and the bottom, the window 1 falls inwards; the first servo motor drives the push rod 32 to rotate to the outdoor side, and the window 1 which is tilted inward is pulled back to the closed position.
Example 2
This example is based on example 1:
the rotating shaft 25 is a rectangular shaft.
As shown in fig. 6, the bottom of the window frame 2 is provided with an insertion hole, and one end of the rack 22 is provided with a latch 47 corresponding to the insertion hole.
Example 3
This example is based on example 1:
the rotating shaft 25 is a rectangular shaft.
As shown in fig. 6, the bottom of the window frame 2 is provided with an insertion hole, and one end of the rack 22 is provided with a latch 47 corresponding to the insertion hole. When the handle 26 rotates to the lowest position, the bolt 47 of the rack is separated from the insertion hole, and the window is opened; when the handle 26 is rotated to the uppermost position, the latch 47 of the rack is inserted into the receptacle and the window is inverted.
Example 4
This example is based on example 1:
the rotating shaft 25 is a rectangular shaft.
As shown in fig. 6, the bottom of the window frame 2 is provided with an insertion hole, and one end of the rack 22 is provided with a latch 47 corresponding to the insertion hole. When the handle 26 rotates to the lowest position, the bolt 47 of the rack is separated from the insertion hole, and the window is opened; when the handle 26 is rotated to the uppermost position, the latch 47 of the rack is inserted into the receptacle and the window is inverted.
A bolt is arranged at one end of the limiting rod 43, which is far away from the window opening mechanism, and a jack corresponding to the bolt is arranged on the window frame; when the handle 26 rotates to the lowest position, the bolt of the limiting rod 43 is inserted into the insertion hole, the window is opened in the window, and when the handle 26 rotates to the highest position, the bolt of the limiting rod 43 is separated from the insertion hole, and the window falls inwards.
The main connecting rod 41 is provided with a sliding block at the connecting end with the limiting rod 43, and the limiting rod 43 is provided with a sliding groove corresponding to the sliding block.
Example 5
This example is based on example 1:
the rotating shaft 25 is a rectangular shaft.
As shown in fig. 6, the bottom of the window frame 2 is provided with an insertion hole, and one end of the rack 22 is provided with a latch 47 corresponding to the insertion hole. When the handle 26 rotates to the lowest position, the bolt 47 of the rack is separated from the insertion hole, and the window is opened; when the handle 26 is rotated to the uppermost position, the latch 47 of the rack is inserted into the receptacle and the window is inverted.
A bolt is arranged at one end of the limiting rod 43, which is far away from the window opening mechanism, and a jack corresponding to the bolt is arranged on the window frame; when the handle 26 rotates to the lowest position, the bolt of the limiting rod 43 is inserted into the insertion hole, the window is opened in the window, and when the handle 26 rotates to the highest position, the bolt of the limiting rod 43 is separated from the insertion hole, and the window falls inwards.
When the handle 26 is rotated to the horizontal position, the limit rod 43 and the inserted pin of the rack 22 are inserted into the corresponding insertion holes, and the window is in a closed state.
The main connecting rod 41 is provided with a sliding block at the connecting end with the limiting rod 43, and the limiting rod 43 is provided with a sliding groove corresponding to the sliding block.
The main connecting rod 41 is provided with a limiting column facing the limiting rod 43 at the connecting end with the window frame 2, and the limiting rod 45 is provided with a limiting groove 44 corresponding to the limiting column 45.
Example 6
This example is based on example 1:
the rotating shaft 25 is a rectangular shaft.
As shown in fig. 6, the bottom of the window frame 2 is provided with an insertion hole, and one end of the rack 22 is provided with a latch 47 corresponding to the insertion hole. When the handle 26 rotates to the lowest position, the bolt 47 of the rack is separated from the insertion hole, and the window is opened; when the handle 26 is rotated to the uppermost position, the latch 47 of the rack is inserted into the receptacle and the window is inverted.
A bolt is arranged at one end of the limiting rod 43, which is far away from the window opening mechanism, and a jack corresponding to the bolt is arranged on the window frame; when the handle 26 rotates to the lowest position, the bolt of the limiting rod 43 is inserted into the insertion hole, the window is opened in the window, and when the handle 26 rotates to the highest position, the bolt of the limiting rod 43 is separated from the insertion hole, and the window falls inwards.
When the handle 26 is rotated to the horizontal position, the limit rod 43 and the inserted pin of the rack 22 are inserted into the corresponding insertion holes, and the window is in a closed state.
The main connecting rod 41 is provided with a sliding block at the connecting end with the limiting rod 43, and the limiting rod 43 is provided with a sliding groove corresponding to the sliding block.
The main connecting rod 41 is provided with a limiting column facing the limiting rod 43 at the connecting end with the window frame 2, and the limiting rod 45 is provided with a limiting groove 44 corresponding to the limiting column 45.
The end of the limiting groove 44 far away from the flexible steel bar 46 is in smooth transition with the surface of the limiting rod 43.
Example 7
This example is based on example 1:
the rotating shaft 25 is a rectangular shaft.
As shown in fig. 6, the bottom of the window frame 2 is provided with an insertion hole, and one end of the rack 22 is provided with a latch 47 corresponding to the insertion hole. When the handle 26 rotates to the lowest position, the bolt 47 of the rack is separated from the insertion hole, and the window is opened; when the handle 26 is rotated to the uppermost position, the latch 47 of the rack is inserted into the receptacle and the window is inverted.
A bolt is arranged at one end of the limiting rod 43, which is far away from the window opening mechanism, and a jack corresponding to the bolt is arranged on the window frame; when the handle 26 rotates to the lowest position, the bolt of the limiting rod 43 is inserted into the insertion hole, the window is opened in the window, and when the handle 26 rotates to the highest position, the bolt of the limiting rod 43 is separated from the insertion hole, and the window falls inwards.
When the handle 26 is rotated to the horizontal position, the limit rod 43 and the inserted pin of the rack 22 are inserted into the corresponding insertion holes, and the window is in a closed state.
The main connecting rod 41 is provided with a sliding block at the connecting end with the limiting rod 43, and the limiting rod 43 is provided with a sliding groove corresponding to the sliding block.
The main connecting rod 41 is provided with a limiting column facing the limiting rod 43 at the connecting end with the window frame 2, and the limiting rod 45 is provided with a limiting groove 44 corresponding to the limiting column 45.
The end of the limiting groove 44 far away from the flexible steel bar 46 is in smooth transition with the surface of the limiting rod 43.
When the handle 26 is rotated to the highest position, the position-limiting column 45 is just clamped at one end of the position-limiting groove 44 close to the flexible steel bar 46.
The first servo motor and the second servo motor are both arranged in the section bar of the window frame.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (10)
1. The utility model provides a manual-automatic formula windowing facility which characterized in that: the window comprises a window, a window frame, a window opening mechanism, a reversing mechanism, a push rod and a slide rail arranged at the top of the window, wherein one end of the push rod is hinged with a slide block matched with the slide rail, and the other end of the push rod is connected with a first servo motor on the window frame; the window opening mechanism comprises a driving rod, a transmission gear, a first bevel gear, a second bevel gear and a handle on the window, the driving rod is arranged on the side edge of the window, one end of the driving rod is connected with a rack meshed with the transmission gear, a transmission shaft of the transmission gear is connected with one side of the first bevel gear, the other side of the first bevel gear is connected with the handle through a rotating shaft, the second bevel gear is positioned below the first bevel gear and meshed with the first bevel gear, and a transmission shaft of the second bevel gear is connected with a second servo motor; the reversing mechanism comprises a main connecting rod, an auxiliary connecting rod and a limiting rod, the limiting rod is arranged in the length direction of the top end of the window and can slide along the length direction, one end of the limiting rod is connected with the driving rod through a flexible steel bar, the flexible steel bar is arranged along the side edge of the window, one end of the main connecting rod is in sliding connection with the limiting rod, the main connecting rod can slide in the length direction of the limiting rod, and the other end of the main connecting rod is hinged with the window frame; one end of the auxiliary connecting rod is hinged with the limiting rod, and the other end of the auxiliary connecting rod is hinged with the main connecting rod.
2. The automated manual windowing device according to claim 1, wherein: the rotating shaft is a rectangular shaft.
3. The automated manual windowing device according to claim 1, wherein: the bottom of the window frame is provided with an insertion hole, and one end of the rack is provided with a bolt corresponding to the insertion hole; when the handle rotates to the lowest position, the bolt of the rack is separated from the jack; when the handle is rotated to the highest position, the bolt of the rack is inserted into the insertion hole.
4. The automated manual windowing device according to claim 3, wherein: a bolt is arranged at one end of the limiting rod, which is far away from the window opening mechanism, and a jack corresponding to the bolt is arranged on the window frame; when the handle rotates to the lowest position, the bolt of gag lever post inserts in the jack, when the handle rotates to the highest position, the bolt of gag lever post with the jack breaks away from.
5. The automated manual windowing device according to claim 4, wherein: when the handle rotated to the level, the equal bolt of gag lever post and rack all inserted in the jack that corresponds.
6. The automated manual windowing device according to claim 1, wherein: the main connecting rod is provided with a sliding block at the connecting end with the limiting rod, and the limiting rod is provided with a sliding groove corresponding to the sliding block.
7. The automated manual windowing device according to claim 1, wherein: the main connecting rod is provided with a limiting column facing the limiting rod at the connecting end of the main connecting rod and the window frame, and the limiting rod is provided with a limiting groove corresponding to the limiting column.
8. The automated manual windowing device according to claim 7, wherein: one end of the limiting groove far away from the flexible steel bar and the surface of the limiting rod are in smooth transition.
9. The automated manual windowing device according to claim 7, wherein: when the handle rotates to the highest position, the limiting column is just clamped at one end, close to the windowing mechanism, of the limiting groove.
10. The automated manual windowing device according to claim 1, wherein: the first servo motor and the second servo motor are both arranged in the section bar of the window frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820942362.6U CN211666507U (en) | 2018-06-19 | 2018-06-19 | Manual-automatic integrated window opening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820942362.6U CN211666507U (en) | 2018-06-19 | 2018-06-19 | Manual-automatic integrated window opening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211666507U true CN211666507U (en) | 2020-10-13 |
Family
ID=72729932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820942362.6U Active CN211666507U (en) | 2018-06-19 | 2018-06-19 | Manual-automatic integrated window opening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211666507U (en) |
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2018
- 2018-06-19 CN CN201820942362.6U patent/CN211666507U/en active Active
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