CN119333019A - A connection structure and hinge structure for doors and windows - Google Patents
A connection structure and hinge structure for doors and windows Download PDFInfo
- Publication number
- CN119333019A CN119333019A CN202411498089.9A CN202411498089A CN119333019A CN 119333019 A CN119333019 A CN 119333019A CN 202411498089 A CN202411498089 A CN 202411498089A CN 119333019 A CN119333019 A CN 119333019A
- Authority
- CN
- China
- Prior art keywords
- fixing plate
- window sash
- window
- connecting rod
- hole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D5/00—Construction of single parts, e.g. the parts for attachment
- E05D5/02—Parts for attachment, e.g. flaps
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D3/00—Hinges with pins
- E05D3/06—Hinges with pins with two or more pins
- E05D3/18—Hinges with pins with two or more pins with sliding pins or guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hinges (AREA)
Abstract
本发明公开了一种用于门窗的连接结构及铰链结构。该连接结构包括窗扇固定板、连杆部、第一连接件以及第二连接件。其中，窗扇固定板分别安装窗扇上，且窗扇固定板上开设有第一连接孔；连杆部设置于窗扇固定板的远离窗扇的一侧，且连杆部上与第一连接孔相对应的位置处开设有第二连接孔；第一连接件，穿设于第一连接孔和第二连接孔，以将窗扇固定板与连杆部相铰接；并且，第一连接件的中心具有中心孔；第二连接件，穿设于中心孔，且将窗扇固定板与窗扇固定连接。利用该连接结构可通过第一连接件实现窗扇固定板与连杆部相铰接；并且，通过第一连接件与第二连接件的相互配合，实现了窗扇固定板与窗扇的固定连接，不用额外在窗扇固定板上增加螺丝孔。
The present invention discloses a connection structure and hinge structure for doors and windows. The connection structure includes a window sash fixing plate, a connecting rod portion, a first connecting member and a second connecting member. The window sash fixing plates are respectively installed on the window sashes, and a first connecting hole is provided on the window sash fixing plate; the connecting rod portion is arranged on a side of the window sash fixing plate away from the window sash, and a second connecting hole is provided on the connecting rod portion at a position corresponding to the first connecting hole; the first connecting member is passed through the first connecting hole and the second connecting hole to hinge the window sash fixing plate with the connecting rod portion; and the center of the first connecting member has a center hole; the second connecting member is passed through the center hole and fixedly connects the window sash fixing plate with the window sash. By using this connection structure, the window sash fixing plate and the connecting rod portion can be hinged through the first connecting member; and the fixed connection between the window sash fixing plate and the window sash is realized through the mutual cooperation of the first connecting member and the second connecting member, without adding additional screw holes on the window sash fixing plate.
Description
Technical Field
The invention relates to the technical field of door and window hardware, in particular to a connecting structure and a hinge structure for doors and windows.
Background
The conventional friction hinge for doors and windows generally comprises a mounting plate, a long support arm, a short support arm, a window mounting arm, a sliding block and other parts which are hinged with each other, and the friction hinge is simple in structure and convenient to mount.
However, as shown in fig. 1, the conventional friction hinge structure generally includes a plurality of through holes formed in a mounting plate, and is used for fixing the mounting plate to a frame member through screws, so that the overall strength of a base plate is reduced due to the plurality of through holes formed in the hinge mounting plate, and meanwhile, a section of the mounting plate cannot be set near a hinge side fan angle due to the rivet connection point with other support arms, so that the fan angle of a window sash is deformed to cause a larger potential safety hazard when the fan is subjected to a certain wind pressure.
Disclosure of Invention
The invention aims to provide a connecting structure for doors and windows.
Another technical problem to be solved by the present invention is to provide a hinge structure for doors and windows.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
According to a first aspect of the present technical solution, there is provided a connection structure for doors and windows, comprising:
The window sash fixing plate is fixed on a window sash, and a first connecting hole is formed in the window sash fixing plate;
A connecting rod part which is arranged on one side of the window sash fixing plate far away from the window sash, and a second connecting hole is formed in the connecting rod part at a position corresponding to the first connecting hole;
The first connecting piece is penetrated through the first connecting hole and the second connecting hole so as to hinge the window sash fixing plate and the connecting rod part, and the center of the first connecting piece is provided with a center hole;
The second connecting piece is arranged in the central hole in a penetrating mode and fixedly connects the window sash fixing plate with the window sash.
Preferably, the central hole is a threaded hole, the second connecting piece is a screw, the screw is in threaded connection with the threaded hole, and one end of the screw is screwed into the window sash.
Preferably, the central hole is a through hole, and the second connecting piece is a self-tapping screw, which passes through the through hole and self-taps into the window sash.
According to a second aspect of the present technical solution, there is provided a hinge structure using the above connection structure, including:
The window frame fixing plate is arranged on the window frame;
The window sash fixing plate is fixed on the window sash and positioned at one side of the window frame fixing plate, and a first connecting hole is formed in one end, close to the window frame fixing plate, of the window sash fixing plate;
The connecting rod assembly is connected between the window frame fixing plate and the window sash fixing plate so that the window sash fixing plate can rotate around the window frame fixing plate to realize opening or closing of the window sash;
The first connecting piece is penetrated through the first connecting hole and the second connecting hole so as to hinge the window sash fixing plate and the connecting rod part, and the center of the first connecting piece is provided with a center hole;
The second connecting piece is arranged in the central hole in a penetrating mode and fixedly connects the window sash fixing plate with the window sash.
Preferably, the link assembly includes:
one end of the connecting rod part is hinged with the window frame fixing plate, and the other end of the connecting rod part is hinged with one end, close to the window frame fixing plate, of the window sash fixing plate through the first connecting piece;
One end of the first connecting rod is in sliding connection with the window frame fixing plate, and the other end of the first connecting rod is hinged with the window sash fixing plate;
and one end of the second connecting rod is hinged with the window sash fixing plate, and the other end of the second connecting rod is hinged with the middle part of the first connecting rod.
Preferably, the link assembly includes:
a connecting rod part, one end of which is hinged with the window frame fixing plate, and the other end of which is hinged with the window sash fixing plate through the first connecting piece;
One end of the first connecting rod is in sliding connection with the window frame fixing plate, and the other end of the first connecting rod is hinged with the window sash fixing plate;
and one end of the second connecting rod is in sliding connection with the window frame fixing plate, and the other end of the second connecting rod is hinged with the middle part of the connecting rod part.
Preferably, the link assembly includes:
one end of the connecting rod part is in sliding connection with the window frame fixing plate, and the other end of the connecting rod part is hinged with the window sash fixing plate through the first connecting piece;
one end of the first connecting rod is hinged with the window frame fixing plate, and the other end of the first connecting rod is hinged with the window sash fixing plate;
And one end of the second connecting rod is in sliding connection with the window frame fixing plate, and the other end of the second connecting rod is hinged with the middle part of the first connecting rod.
Preferably, the window sash fixing plate is provided with a limit column, and the middle part of the connecting rod part is provided with a limit part;
When the window sash fixing plate rotates for a preset angle relative to the window frame fixing plate, the limiting column abuts against the limiting part so as to limit the window sash fixing plate to rotate.
Preferably, the window further comprises a sealing piece which is arranged at the end part of the window sash fixing plate and is fixedly connected with the window sash fixing plate through the limit column;
And one end, far away from the first connecting piece, of the sealing piece forms a propping tip with a preset shape, and the propping tip is used for being matched with the end wrap angle of the window frame fixing plate.
Preferably, the window fixing plate is provided with a fixing hole, and the fixing hole is fixedly connected with the window through a fixing piece.
Compared with the prior art, the invention has the following beneficial effects:
According to the connecting structure for the door and window, on one hand, the rivet is driven to realize the mutual hinging of the window sash fixing plate and the connecting rod assembly, so that a stable hinge structure is formed, the fixing position of the hinge and the window is close to the hinge side, and when wind pressure is resisted, wind pressure resistance can be provided for the window sash. On the other hand, through the mutually supporting of first connecting piece and second connecting piece, realized the fixed connection of casement fixed plate and casement to need not additionally increase the screw hole on the casement fixed plate, avoid subtracting the intensity that the material leads to and reduce.
Drawings
FIG. 1 is a prior art schematic;
Fig. 2A is a schematic structural view of a connection structure for doors and windows according to a first embodiment of the present invention;
FIG. 2B is a schematic view of another first connecting member and a second connecting member according to the first embodiment of the present invention;
Fig. 3 is a schematic structural view of a hinge structure for doors and windows according to a second embodiment of the present invention;
Fig. 4 is a schematic structural view of a hinge structure for doors and windows according to a third embodiment of the present invention;
FIG. 5 is a schematic view showing a combined structure of a seal member and a connecting rod portion according to a third embodiment of the present invention;
fig. 6 is a schematic structural view of a hinge structure for doors and windows according to a fourth embodiment of the present invention;
Fig. 7 is a schematic structural view of a hinge structure for doors and windows according to a fifth embodiment of the present invention;
Fig. 8 is a schematic structural view of a door and window according to a sixth embodiment of the present invention.
In the drawings, each reference numeral denotes:
1. A window frame fixing plate; 11, a sliding block, 12, a fixed block, 13, and an end wrap angle;
2. The window sash fixing plate, 21, a first connecting hole, 22, a limit post, 221, a large-diameter section, 222, a small-diameter section, 23, a fixing hole, 24 and a fixing piece;
3. the device comprises a connecting rod assembly, 31, a connecting rod part, 32, a first connecting rod, 33, a second connecting rod, 311, a second connecting hole, 312, a limiting part, 34, a sealing element, 341, a third connecting hole, 342, a fourth connecting hole, 343 and a propping tip;
4. 41, a central hole;
5. A second connector;
100. 10 parts of doors and windows, 10 parts of window frames, 20 parts of window sashes, 30 parts of hinge structures.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, the technical solutions according to the embodiments of the present invention will be clearly described in the following with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
A first embodiment;
as shown in fig. 2A, a connection structure for a door or window according to a first embodiment of the present invention includes a window fixing plate 2, a link portion 31, a first connection member 4, and a second connection member 5.
Specifically, in this embodiment, the window fixing plate 2 is mounted at the bottom of the window, and the window fixing plate 2 is provided with a first connection hole 21. The link portion 31 is provided at a side of the window fixing plate 2 away from the window sash (i.e., a lower side in fig. 2A), and a second connection hole 311 is opened at a position of the link portion 31 corresponding to the first connection hole 21. The first connecting piece 4 is penetrated into the first connecting hole 21 and the second connecting hole 311 to hinge the window fixing plate 2 with the link portion 31. The first connector 4 has a center hole 41 at the center, and the second connector 5 is inserted into the center hole 41 to fixedly connect the window fixing plate 2 to the window.
In the above embodiment, as shown in fig. 2A, the center hole 41 is a threaded hole, and accordingly, the second connection member 5 is a screw. The screw 5 is screwed with the screw hole 41, and one end of the screw 5 is screwed into the window sash. In another embodiment, as shown in fig. 2B, the central hole 41 is a through hole and, correspondingly, the second connector 5 is a self-tapping screw, which self-tapping screw 5 passes through the through hole 41 and self-taps into the sash. The two structural forms are only two preferred embodiments, but do not limit the invention, and a user can adaptively adjust a specific connecting structure according to needs, so that the requirements of hinging the hinge and fixing connection of the window sash fixing plate 2 and the window sash are met at the same time.
It will be appreciated that with this connection structure, on the one hand, the hinging of the sash fixing plate 2 to the link portion 31 may be achieved by the first connector 4 itself, to form a stable hinge structure. And, through the mutually supporting of first connecting piece 4 and second connecting piece 5, realized the fixed connection of casement fixed plate and casement to need not additionally increase the screw hole on the casement fixed plate, avoid subtracting the intensity that the material leads to and reduce.
Second embodiment:
As shown in fig. 3, a hinge structure for a door or window according to a second embodiment of the present invention includes a frame fixing plate 1, a window sash fixing plate 2, a link assembly 3, a first connector 4, and a second connector 5. Wherein, window frame fixed plate 1 and casement fixed plate 2 are installed on window frame and casement respectively, and link assembly 3 is connected between window frame fixed plate 1 and casement fixed plate 2 to make casement fixed plate 2 can rotate for window frame fixed plate 1. The first connecting piece 4 is connected between the window sash fixing plate 2 and the connecting rod assembly 3 so as to realize the mutual hinging of the window sash fixing plate 2 and the connecting rod assembly 3, and a stable hinge structure is formed. The second connecting piece 5 is connected to the first connecting piece 4 to be matched with the first connecting piece 4, so that the fixed connection between the window sash fixing plate 2 and the window sash is realized.
As shown in fig. 3, in the above embodiment, the window frame fixing plate 1 is mounted on the window frame in a substantially rectangular plate-like structure. The window frame fixing plate 1 is in sliding fit with a sliding block 11, the window frame fixing plate 1 is also provided with a fixing block 12, and the fixing block 12 and the sliding block 11 are arranged at intervals in the length direction of the window frame fixing plate 1.
As shown in fig. 3, in the above embodiment, the window fixing plate 2 is fixed to the window sash at one side of the window frame fixing plate 1. The window fixing plate 2 has a rectangular plate structure, and a first connecting hole 21 is formed at one end of the window fixing plate 2 near the window frame fixing plate for hinging with the connecting rod assembly 3.
As shown in fig. 3, in the above embodiment, the link assembly 3 is connected between the window frame fixing plate 1 and the window sash fixing plate 2 so that the window sash fixing plate 2 can rotate around the window frame fixing plate 1. Specifically, in the present embodiment, the link assembly 3 includes a link portion 31, a first link 32, and a second link 33. One end (i.e., the left end in fig. 3) of the link portion 31 is hinged to the fixed block 12, and the other end (i.e., the right end in fig. 3) is provided with a second connection hole 311, where the second connection hole 311 corresponds to the first connection hole 21, so that the first connector 4 can be inserted into the first connection hole 21 and the second connection hole 311, thereby hinging the window fixing plate 2 to the right end of the link portion 31. One end (i.e., the left end in fig. 3) of the first link 32 is hinged to the slider 11, and the other end (i.e., the right end in fig. 3) is hinged to the middle of the window fixing plate 2. One end (i.e., the left end in fig. 3) of the second link 33 is hinged to the fixed block 12, and the other end (i.e., the right end in fig. 3) is hinged to the middle of the first link 32. The three connecting rods form a connecting rod assembly 3 together, so that the window frame fixing plate 1 and the window sash fixing plate 2 are in transmission connection.
As shown in fig. 2, in the above embodiment, the first connection member 4 is penetrated into the first connection hole 21 and the second connection hole 311 to hinge the window fixing plate 2 with the link assembly 3. And, the center of the first connecting piece 4 has a center hole 41, and correspondingly, the second connecting piece 5 is connected in the center hole 41 of the first connecting piece 4, and one end of the second connecting piece 5 protrudes out of the center hole 41 for fixedly connecting with the window sash. Thereby, on the one hand, the mutual hinging of the window sash fixing plate 2 and the connecting rod assembly 3 is realized through the first connecting piece 4, so that a stable hinge structure is formed, the fixing position of the hinge and the window is close to the hinge side, and when wind pressure is resisted, the wind pressure resistance can be provided for the window sash. On the other hand, through the mutual cooperation of the first connecting piece 4 and the second connecting piece 5, the fixed connection of the window sash fixing plate 2 and the window sash is realized, so that a screw hole is not additionally added on the window sash fixing plate 2, and the strength reduction caused by material reduction is avoided.
In the above embodiment, it is preferable that the first connection hole 21 is a bar-shaped hole provided along the length direction of the window fixing plate 2 to adjust the installation position of the window fixing plate 2 and the link assembly 3 within a preset range. It can be appreciated that by setting the first connection hole 21 as a bar-shaped hole, the mounting position of the window sash can be adaptively adjusted according to different mounting scenes during actual mounting, thereby improving the convenience of window sash mounting.
As shown in fig. 3, in the above embodiment, it is preferable that the window sash fixing plate 2 is provided with a stopper post 22, and correspondingly, the middle of the link portion 31 is provided with a stopper 312 (i.e., a portion protruding from the middle of the link portion 31). When the window fixing plate 2 rotates a preset angle relative to the window frame fixing plate 1, the limiting post 22 abuts against the limiting portion 312 to limit the rotation of the window fixing plate 2. Specifically, in this embodiment, the limiting post 22 includes a large-diameter section 221 and a small-diameter section 222, wherein the large-diameter section 221 is used for abutting against the limiting portion 312, and the small-diameter section 222 is fixed on the window sash fixing plate 2.
Furthermore, as shown in fig. 1, in the above-described embodiment, it is preferable that the window fixing plate 2 is provided with a fixing hole 23, and the fixing hole 23 is fixedly coupled with the window sash by a fixing piece 24, thereby improving the stability of the installation of the window fixing plate 2.
Third embodiment:
As shown in fig. 4 and 5, a third embodiment of the present invention provides another hinge structure for a door or window, including a frame fixing plate 1, a window fixing plate 2, a link assembly 3, a first link 4, and a second link 5, on the basis of the above-described second embodiment. The present embodiment differs from the second embodiment in that the structure of the link assembly 3 is different.
Specifically, in the present embodiment, the link assembly 3 includes the seal 34 in addition to the link portion 31, the first link 32, and the second link 33 in the first embodiment described above. The sealing member 34 is disposed between the connecting rod portion 31 and the window sash fixing plate 2, and a third connecting hole 341 is formed in the sealing member 34 at a position corresponding to the second connecting hole 311, and the second connecting member 5 is connected and fixed to the first connecting member 4 after passing through the second connecting hole 311 and the third connecting hole 341 in sequence. In addition, a fourth connecting hole 342 is formed in the middle of the sealing member 34, and the thick-diameter section 221 of the limiting post 22 is inserted into the fourth connecting hole 342, so that the sealing member 34 is positioned and mounted.
In addition, in this embodiment, an end of the sealing member 34, which is far away from the first connecting member 4, forms a tip end 343 with a preset shape, so as to be matched with the end wrap angle 13 of the window frame fixing plate 1, thereby playing a role in guiding and sealing the closing of the window sash and improving the closing effect of the window sash.
Except for the above differences, the other structures of this embodiment are the same as those of the second embodiment, and will not be described here again.
Fourth embodiment:
As shown in fig. 6, another hinge structure for a door or window according to a fourth embodiment of the present invention includes a frame fixing plate 1, a window fixing plate 2, a link assembly 3, a first link 4, and a second link 5. The present embodiment differs from the second embodiment in the connection form of the link assembly 3.
Specifically, in the present embodiment, the window frame fixing plate 1 is provided with a slider 11 and a fixing block 12. The slider 11 can move in a telescopic manner along the longitudinal direction of the sash fixing plate 1, and the fixing block 12 is fixed to the surface of the sash fixing plate 1.
The link assembly 3 includes a link portion 31, a first link 32, and a second link 33. Wherein one end (i.e., the right end in fig. 6) of the link portion 31 is hinged to the fixed block 12 of the window frame fixing plate 1, and the other end (i.e., the left end in fig. 6) is hinged to the window sash fixing plate 2 through the first connection member 4. One end (i.e., the right end in fig. 6) of the first link 32 is hinged to the slider 11 of the window frame fixing plate 1, and the other end (i.e., the left end in fig. 6) is hinged to the window sash fixing plate 2. One end (i.e., the right end in fig. 6) of the second link 33 is hinged to the slider 11 of the window frame fixing plate 1, and the other end (i.e., the left end in fig. 6) is hinged to the middle of the link portion 31.
It will be appreciated that the movement patterns of the link portion 31, the first link 32 and the second link 33 are different during the opening and closing of the window sash based on the different connection patterns of the link assembly 3 as compared with the second embodiment.
Except for the above-described distinguishing features, the specific structures of the window frame fixing plate 1, the window sash fixing plate 2, the first connecting piece 4, and the second connecting piece 5 are the same as those of the second embodiment, and will not be described again.
Fifth embodiment:
As shown in fig. 7, another hinge structure for a door or window according to a fifth embodiment of the present invention includes a frame fixing plate 1, a window fixing plate 2, a link assembly 3, a first link 4, and a second link 5. The present embodiment differs from the second embodiment in the connection form of the link assembly 3.
Specifically, in the present embodiment, the window frame fixing plate 1 is provided with a slider 11 and a fixing block 12. The slider 11 can move in a telescopic manner along the longitudinal direction of the sash fixing plate 1, and the fixing block 12 is fixed to the surface of the sash fixing plate 1.
The link assembly 3 includes a link portion 31, a first link 32, and a second link 33. One end (i.e., the left end in fig. 7) of the link portion 31 is hinged to the slider 11 of the window frame fixing plate 1, and the other end (i.e., the right end in fig. 7) is hinged to the window sash fixing plate 2 through the first connection member 4. One end (i.e., the left end in fig. 7) of the first link 32 is hinged to the fixed block 12 of the window frame fixing plate 1, and the other end (i.e., the right end in fig. 7) is hinged to the window sash fixing plate 2. One end (i.e., the left end in fig. 7) of the second link 33 is hinged to the slider 11 of the window frame fixing plate 1, and the other end (i.e., the right end in fig. 7) is hinged to the middle of the first link 32.
It will be appreciated that the movement patterns of the link portion 31, the first link 32 and the second link 33 are different during the opening and closing of the window sash based on the different connection patterns of the link assembly 3 as compared with the second embodiment.
Except for the above-described distinguishing features, the specific structures of the window frame fixing plate 1, the window sash fixing plate 2, the first connecting piece 4, and the second connecting piece 5 are the same as those of the second embodiment, and will not be described again.
Sixth embodiment:
As shown in fig. 8, the sixth embodiment of the present invention further provides a door and window 100 including a window frame 10, a window sash 20, and the hinge structure 30 according to any one of the second to fifth embodiments.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411498089.9A CN119333019A (en) | 2024-10-25 | 2024-10-25 | A connection structure and hinge structure for doors and windows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411498089.9A CN119333019A (en) | 2024-10-25 | 2024-10-25 | A connection structure and hinge structure for doors and windows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119333019A true CN119333019A (en) | 2025-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411498089.9A Pending CN119333019A (en) | 2024-10-25 | 2024-10-25 | A connection structure and hinge structure for doors and windows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119333019A (en) |
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- 2024-10-25 CN CN202411498089.9A patent/CN119333019A/en active Pending
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