CN219379074U - Inclined hole processing auxiliary device - Google Patents
Inclined hole processing auxiliary device Download PDFInfo
- Publication number
- CN219379074U CN219379074U CN202320255722.6U CN202320255722U CN219379074U CN 219379074 U CN219379074 U CN 219379074U CN 202320255722 U CN202320255722 U CN 202320255722U CN 219379074 U CN219379074 U CN 219379074U
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- clamping block
- supporting seat
- plate
- adjusting plate
- rotating shaft
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- 238000003754 machining Methods 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model provides an inclined hole machining auxiliary device, which relates to the technical field of aviation component machining equipment and comprises a first supporting seat; one end of the adjusting plate is connected with the first supporting seat through a rotating shaft; the telescopic assembly is used for enabling the adjusting plate to rotate around the rotating shaft by a preset angle; and a tooling, comprising: the first clamping block is connected to the adjusting plate; the second clamping block is movably arranged on the adjusting plate, and the first clamping block and the second clamping block are matched together; one end of the connecting rod is fixed on the first clamping block, and the other end of the connecting rod is spliced with the second clamping block; and the limit nut is in threaded connection with the connecting rod and is used for limiting the movement of the second clamping block in the direction away from the first clamping block. After the workpiece is placed between the first clamping block and the second clamping block, the limit nut is screwed, and the second clamping block can be pushed to the first clamping block so as to clamp the plate-shaped, strip-shaped and rod-shaped workpiece through the joint cooperation of the first clamping block and the second clamping block, so that the applicability is stronger.
Description
Technical Field
The utility model relates to the technical field of aviation component processing equipment, in particular to an inclined hole processing auxiliary device.
Background
In the field of aeronautics, it is sometimes involved to perform oblique hole machining on aircraft structural members; the axis of the inclined hole is not parallel or perpendicular to the length direction of the structural member of the airplane, but forms a certain included angle.
The patent document with the application number of CN201920970528.X discloses a clamping device for processing inclined holes of an aircraft structural member, which clamps a strip-shaped and rod-shaped aircraft structural member through at least two clamping mechanisms, the clamping mechanisms respectively fix two ends of the aircraft structural member, so that the aircraft structural member can be prevented from being skewed, and the fixing effect is good. In addition, the surface of the adjusting plate is provided with a limit groove extending along the length direction of the adjusting plate, and two sides of the limit groove are uniformly provided with a plurality of threaded holes along the length direction of the limit groove; the clamping mechanism is limited in the limiting groove and fixedly connected with the adjusting plate through bolts; the clamping mechanisms can move along the limiting grooves, so that the positions of the aircraft structural members on the adjusting plates can be flexibly adjusted, and the distance between the two clamping mechanisms can be adjusted, and the clamping mechanism is suitable for clamping the aircraft structural members with different lengths.
Although the above-mentioned technical solutions of the patent documents can flexibly adjust the position of the aircraft structural member on the adjusting plate, the clamping mechanism is only suitable for clamping and fixing the strip-shaped or rod-shaped aircraft structural member, and is not easy to clamp and fix the wider aircraft structural member (for example, the plate-shaped aircraft structural member), and needs to be improved.
Disclosure of Invention
Aiming at the situation, the utility model provides an auxiliary device for inclined hole processing, which aims to solve the technical problems that the clamping mechanism of the clamping device for the inclined hole processing of the existing aircraft structural member is only suitable for clamping a fixing strip and a rod-shaped aircraft structural member and is not easy to clamp and fix a wider aircraft structural member.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an inclined hole processing auxiliary device, which mainly comprises:
a first support base;
one end of the adjusting plate is connected with the first supporting seat through a rotating shaft and is used for supporting a workpiece parallel to the adjusting plate;
the telescopic assembly is used for enabling the adjusting plate to rotate around the rotating shaft by a preset angle; and
Frock includes:
the first clamping block with the L-shaped cross section is connected to the adjusting plate;
the second clamping block with the L-shaped cross section is movably arranged on the adjusting plate, and the first clamping block and the second clamping block are matched together to clamp a workpiece;
one end of the connecting rod is fixed on the first clamping block, and the other end of the connecting rod is spliced with the second clamping block; and
And the limiting nut is in threaded connection with the connecting rod and is used for limiting the movement of the second clamping block in the direction away from the first clamping block.
In some embodiments of the utility model, the inclined hole machining auxiliary device further comprises a pressing assembly, wherein the pressing assembly is arranged above the first clamping block and/or the second clamping block and used for pressing the workpiece.
In some embodiments of the present utility model, a compression assembly includes:
the pressing plate is arranged above the first clamping block and/or the second clamping block;
the support plate is arranged above the pressing plate; and
The compression bar is in threaded connection with the support plate, and the lower end of the compression bar is connected with the pressing plate.
In some embodiments of the utility model, the compression assembly further comprises:
the guide rod is spliced with the support plate, and the lower end of the guide rod is fixed on the pressing plate; and
And the return spring is used for enabling the pressing plate to move upwards and return.
In some embodiments of the present utility model, the inclined hole processing auxiliary device further includes:
the pointer is connected to one end of the adjusting plate, which is close to the first supporting seat; and
The measuring plate is provided with a scale matched with the pointer for use.
In some embodiments of the present utility model, the adjusting plate has an extension portion, one end of the rotating shaft is fixed on the first supporting seat, and the other end of the rotating shaft penetrates through the extension portion and is connected with a first nut through screw threads;
the measuring plate is fixedly provided with a connecting part which is sleeved with the rotating shaft and is positioned between the extending part and the first supporting seat;
and a limiting assembly used for limiting the rotation of the measuring plate around the rotating shaft is arranged on the first supporting seat.
In some embodiments of the present utility model, the spacing assembly comprises:
the first stop block is fixed on the first supporting seat and used for limiting the rotation of the measuring plate in the anticlockwise direction; and
The second stop block is arranged on the first supporting seat and used for limiting the rotation of the measuring plate in the clockwise direction.
In some embodiments of the utility model, one end of the second stop block is connected with a plug-in part which is plugged with the first supporting seat, one side of the second stop block is provided with a slope, and the slope is abutted with the measuring plate;
the second dog is run through by the gag lever post, and the one end and the first supporting seat fixed connection of gag lever post, other end threaded connection have the second nut that is used for restricting the second dog and removes.
In some embodiments of the utility model, one side of the measuring plate has an arcuate projection, the scale is located on the arcuate projection, and one side of the pointer is located adjacent to the arcuate projection.
In some embodiments of the utility model, the telescoping assembly comprises a telescoping cylinder;
the first supporting seat is fixed on the base, the second supporting seat is fixed on the base, one end of the telescopic cylinder is hinged with the second supporting seat, and the other end of the telescopic cylinder is hinged with one end, far away from the rotating shaft, of the adjusting plate.
The embodiment of the utility model has at least the following advantages or beneficial effects:
1. the first supporting seat can be fixed at a designated place, and the adjusting plate can rotate a preset angle around the rotating shaft by changing the whole length of the telescopic assembly so as to adjust the inclination angle of a workpiece (namely the airplane structural member in the background art) which is fixed on the adjusting plate and is parallel to the adjusting plate;
2. after the workpiece is placed between the first clamping block and the second clamping block, the limit nut is screwed, and the second clamping block can be pushed to the first clamping block so as to clamp the plate-shaped, strip-shaped and rod-shaped workpiece through the joint cooperation of the first clamping block and the second clamping block, so that the applicability is stronger.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a structure of an inclined hole processing auxiliary device;
FIG. 2 is a schematic view of the adjusting plate of FIG. 1;
FIG. 3 is a cross-sectional view taken along the line A-A of FIG. 2;
FIG. 4 is an enlarged view of a portion of the B position of FIG. 2;
FIG. 5 is a schematic view of the structure of the measuring plate;
FIG. 6 is a left side view of FIG. 5;
fig. 7 is a schematic structural view of the second stop block, the stop lever and the first support base.
Icon:
1-a first supporting seat, 11-a rotating shaft, 12-a first nut, 13-a first stop block, 14-a second stop block, 141-a plug-in part, 142-a slope, 143-a limit rod, 144-a second nut,
2-adjusting plate, 21-extension,
a 3-telescopic cylinder, wherein the telescopic cylinder is provided with a cylinder body,
a 4-pointer to the position of the pointer,
5-measuring plate, 51-connecting part, 52-arc-shaped bulge,
a 6-base seat, wherein the base seat is provided with a plurality of grooves,
7-a second supporting seat, wherein the second supporting seat is provided with a first supporting seat,
8-frock, 81-first grip block, 82-second grip block, 83-connecting rod, 84-stop nut, 85-hold-down subassembly, 851-clamp plate, 852-extension board, 853-depression bar, 854-guide arm, 855-reset spring.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in numerous different ways without departing from the spirit or scope of the embodiments of the present utility model.
In the description of the embodiments of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.
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 one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.
In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Examples
Referring to fig. 1 to 7, the present embodiment provides an auxiliary device for inclined hole processing, which mainly includes: first supporting seat 1, regulating plate 2, expansion assembly and frock 8, frock 8 can have a plurality ofly, and wherein, frock 8 mainly can include: a first clamping block 81, a second clamping block 82, a connecting rod 83 and a limit nut 84.
The first supporting seat 1 can be fixed at a designated place to play a supporting role.
One end of the adjusting plate 2 is connected to the first supporting seat 1 through a rotating shaft 11, and the adjusting plate 2 is used for supporting a workpiece (i.e., an aircraft structural member described in the background art, hereinafter simply referred to as a workpiece) parallel to itself.
The telescopic assembly rotates the adjusting plate 2 by a predetermined angle around the rotating shaft 11 by changing the overall length thereof to adjust the inclination angle of the workpiece fixed on the adjusting plate 2 and parallel to the adjusting plate 2;
the first clamping block 81 has an L-shaped cross section, and the first clamping block 81 is connected to the adjusting plate 2.
The cross section of the second clamping block 82 is L-shaped, the second clamping block 82 is movably arranged on the adjusting plate 2, and the first clamping block 81 and the second clamping block 82 are matched together to clamp a workpiece.
One end of the connecting rod 83 is fixed on the first clamping block 81, and the other end is spliced with the second clamping block 82; the number of the connection bars 83 may be plural, and when there are plural connection bars 83, the connection bars 83 are parallel to each other.
The limit nut 84 is in threaded connection with the connecting rod 83 and is used for limiting the movement of the second clamping block 82 in a direction away from the first clamping block 81; the lateral spacing between the second clamping block 82 and the first clamping block 81 can be adjusted after the limit nut 84 is screwed.
After the workpiece is placed between the first clamping block 81 and the second clamping block 82, the limit nut 84 is screwed, and the second clamping block 82 can be pushed to the first clamping block 81, so that the plate-shaped, strip-shaped and rod-shaped workpiece can be clamped by the first clamping block 81 and the second clamping block 82 in a matched mode, and the applicability is higher.
The main components and principles of the bevel hole machining aid are generally described above and will be described in more detail below.
In the present embodiment, preferably, the telescopic assembly may mainly include a telescopic cylinder 3; specifically, the first supporting seat 1 is fixed on the base 6, the second supporting seat 7 is fixed on the base 6, one end of the telescopic cylinder 3 is hinged with the second supporting seat 7, and the other end is hinged with one end of the adjusting plate 2 far away from the rotating shaft 11.
In order to better fix the workpiece, the inclined hole machining auxiliary device may further include a pressing assembly 85, and the pressing assembly 85 is disposed above the first clamping block 81 and/or the second clamping block 82 for pressing the workpiece. Specifically, the compressing assembly 85 may mainly include: a pressing plate 851, a supporting plate 852 and a pressing rod 853; the pressing plate 851 is arranged above the first clamping block 81 and/or the second clamping block 82, and the pressing plate 851 can be pressed down on a workpiece; the support plate 852 is arranged above the pressing plate 851; the compression bar 853 is in threaded connection with the support plate 852, and the lower end of the compression bar 853 is connected with the compression plate 851; the pressing bar 853 is rotated to move the pressing plate 851 downward so that the pressing plate 851 is pressed down on the workpiece, thereby pressing the workpiece.
To facilitate automatic upward movement of the pressing plate 851 for resetting during the process of screwing the pressing rod 853 to move the pressing rod 853 upward, the pressing assembly 85 may further include: a guide rod 854 and a return spring 855; the guide rod 854 is spliced with the support plate 852, and the lower end of the guide rod 854 is fixed on the pressing plate 851; one end of the return spring 855 is connected to the upper side of the support plate 852, and the other end is connected to the top of the guide rod 854, and the return spring 855 can return the pressing plate 851 upward.
The inclined hole processing auxiliary device may further include: a pointer 4 and a measuring plate 5; the pointer 4 is connected to one end of the adjusting plate 2, which is close to the first supporting seat 1; the measuring plate 5 has a scale for use with the pointer 4 during rotation of the adjusting plate 2 through a predetermined angle about the rotation axis 11. During the rotation of the adjusting plate 2 by a predetermined angle about the rotation axis 11, the pointer 4 rotates synchronously about the rotation axis 11 to indicate the corresponding scale, i.e. the inclination angle of the adjusting plate 2 and the workpiece on the adjusting plate 2 with respect to the vertical plane, that is, the inclination angle of the workpiece on the adjusting plate 2 can be represented by the scale indicated by the pointer 4 without further calculation to determine the required length of the telescopic assembly, which obviously has the advantage of being more intuitive with respect to the inclination angle of the workpiece on the adjusting plate 2 in the prior art; after the inclination angle of the workpiece on the adjusting plate 2 is adjusted to a proper angle, the adjusting plate 2 can be kept at the current position, and the whole adjusting process is simple and convenient.
In the present embodiment, preferably, one end of the adjusting plate 2 is connected to the first supporting seat 1 through the rotation shaft 11 in the following manner: the adjusting plate 2 is provided with an extension part 21, one end of the rotating shaft 11 is fixed on the first supporting seat 1, the other end of the rotating shaft penetrates through the extension part 21 and is connected with a first nut 12 in a threaded manner, and the first nut 12 is used for preventing the extension part 21 from being separated from the rotating shaft 11.
In a specific implementation scenario, the measuring plate 5 is mounted on the first supporting seat 1, specifically, the measuring plate 5 is fixed with a connecting portion 51, and the connecting portion 51 is sleeved with the rotating shaft 11 and is located between the extending portion 21 and the first supporting seat 1; the first supporting seat 1 is provided with a limiting component for limiting the rotation of the measuring plate 5 around the rotating shaft 11 so as to fix the measuring plate 5 on the first supporting seat 1. More specifically, the limiting assembly may mainly include: a first stopper 13 and a second stopper 14; the first stop block 13 is fixed on the first supporting seat 1 and used for limiting the rotation of the measuring plate 5 in the anticlockwise direction; the second stopper 14 is mounted on the first support base 1 and is used for limiting the rotation of the measuring plate 5 in the clockwise direction.
Further, in order to better fix the measuring plate 5 on the first supporting seat 1, one end of the second stop block 14 is connected with a plugging part 141 plugged with the first supporting seat 1, one side of the second stop block 14 is provided with a slope 142, and the slope 142 is abutted with the measuring plate 5; the second stop block 14 is penetrated by the stop rod 143 and can slide relative to the stop rod 143, one end of the stop rod 143 is fixedly connected with the first supporting seat 1, and the other end of the stop rod 143 is in threaded connection with a second nut 144 for limiting the movement of the second stop block 14. Tightening the second nut 144, the second stopper 14 can be moved in a direction approaching the first support base 1; during the movement of the second stop 14 in a direction approaching the first support 1, the ramp 142 of the second stop 14 can suitably push the measuring plate 5, bringing both the first stop 13 and the second stop 14 into closer contact with the measuring plate 5, thus better fixing the measuring plate 5 to the first support 1.
Further, one side of the measuring plate 5 is provided with an arc-shaped bulge 52, the scale is positioned on the arc-shaped bulge 52, one side of the pointer 4 is close to the arc-shaped bulge 52, and the arrangement has the advantages that after the measuring plate 5 is installed, the distance between the pointer 4 and the arc-shaped bulge 52 is smaller because one side of the pointer 4 is close to the arc-shaped bulge 52, when an observer observes the scale on the arc-shaped bulge 52 from different angles, the reading deviation caused by the view angle is smaller, the reading is more accurate, and the inclination angle of a workpiece is favorably adjusted accurately.
Finally, it should be noted that: the above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, and various modifications and changes may be made to the present utility model by those skilled in the art, and the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without collision. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. An inclined hole processing auxiliary device, characterized by comprising:
a first support base;
one end of the adjusting plate is connected with the first supporting seat through a rotating shaft and is used for supporting a workpiece parallel to the adjusting plate;
the telescopic assembly is used for enabling the adjusting plate to rotate around the rotating shaft by a preset angle; and
Frock includes:
the first clamping block with the L-shaped cross section is connected to the adjusting plate;
the second clamping block with the L-shaped cross section is movably arranged on the adjusting plate, and the first clamping block and the second clamping block are matched together to clamp a workpiece;
one end of the connecting rod is fixed on the first clamping block, and the other end of the connecting rod is spliced with the second clamping block; and
And the limiting nut is in threaded connection with the connecting rod and used for limiting the movement of the second clamping block in the direction away from the first clamping block.
2. The bevel hole machining assist device of claim 1 further comprising a hold down assembly disposed above the first clamp block and/or the second clamp block for holding down a workpiece.
3. The bevel hole machining assist device of claim 2 wherein the hold down assembly comprises:
the pressing plate is arranged above the first clamping block and/or the second clamping block;
the support plate is arranged above the pressing plate; and
The compression bar is in threaded connection with the support plate, and the lower end of the compression bar is connected with the pressing plate.
4. A bevel hole machining assist according to claim 3 wherein the hold down assembly further comprises:
the guide rod is spliced with the support plate, and the lower end of the guide rod is fixed on the pressing plate; and
And the return spring is used for enabling the pressing plate to move upwards and return.
5. The bevel hole machining auxiliary device according to any one of claims 1 to 4, further comprising:
the pointer is connected to one end of the adjusting plate, which is close to the first supporting seat; and
And the measuring plate is provided with a scale matched with the pointer for use.
6. The bevel hole machining auxiliary device according to claim 5, wherein,
the adjusting plate is provided with an extension part, one end of the rotating shaft is fixed on the first supporting seat, and the other end of the rotating shaft penetrates through the extension part and is connected with a first nut in a threaded manner;
the measuring plate is fixedly provided with a connecting part, and the connecting part is sleeved with the rotating shaft and is positioned between the extending part and the first supporting seat;
and a limiting assembly used for limiting the rotation of the measuring plate around the rotating shaft is arranged on the first supporting seat.
7. The bevel hole machining assist device of claim 6 wherein the limit assembly comprises:
the first stop block is fixed on the first supporting seat and used for limiting the rotation of the measuring plate in the anticlockwise direction; and
And the second stop block is arranged on the first supporting seat and used for limiting the rotation of the measuring plate in the clockwise direction.
8. The bevel hole machining auxiliary device according to claim 7, wherein,
one end of the second stop block is connected with a plug-in connection part which is plugged with the first supporting seat, one side of the second stop block is provided with a slope, and the slope is abutted with the measuring plate;
the second stop dog is run through by the gag lever post, the one end of gag lever post with first supporting seat fixed connection, the other end threaded connection have be used for limiting the second nut that the second stop dog removed.
9. The bevel hole machining auxiliary device according to claim 8, wherein one side of the measuring plate is provided with an arc-shaped protrusion, the scale is positioned on the arc-shaped protrusion, and one side of the pointer is positioned close to the arc-shaped protrusion.
10. The bevel hole machining auxiliary device according to claim 1, wherein,
the telescopic component comprises a telescopic cylinder;
the first supporting seat is fixed on the base, the second supporting seat is fixed on the base, one end of the telescopic cylinder is hinged with the second supporting seat, and the other end of the telescopic cylinder is hinged with one end of the adjusting plate, which is far away from the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320255722.6U CN219379074U (en) | 2023-02-20 | 2023-02-20 | Inclined hole processing auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320255722.6U CN219379074U (en) | 2023-02-20 | 2023-02-20 | Inclined hole processing auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219379074U true CN219379074U (en) | 2023-07-21 |
Family
ID=87199712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320255722.6U Active CN219379074U (en) | 2023-02-20 | 2023-02-20 | Inclined hole processing auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219379074U (en) |
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2023
- 2023-02-20 CN CN202320255722.6U patent/CN219379074U/en active Active
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