CN217513778U - Positioning and assembling jig - Google Patents
Positioning and assembling jig Download PDFInfo
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- CN217513778U CN217513778U CN202220899283.8U CN202220899283U CN217513778U CN 217513778 U CN217513778 U CN 217513778U CN 202220899283 U CN202220899283 U CN 202220899283U CN 217513778 U CN217513778 U CN 217513778U
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Abstract
The utility model relates to a lens equipment technical field discloses a positioning assembly tool, including placing platform and speculum, it is used for when the lens is assembled to the work piece to place the platform, bear this work piece, the plane of reflection of speculum is then towards the lens, be used for receiving and reflecting the light that comes from the lens, the plane of reflection of speculum is equipped with counterpoint structure, the equipment position when the lens accords with predetermined standard, the counterpoint silk screen printing of lens is aimed at with this counterpoint structure, through setting up counterpoint structure on the speculum, and utilize the speculum to form images on the lens with counterpoint silk screen printing on the speculum, when the image of counterpoint silk printing and the counterpoint structure on the plane of reflection align, lens equipment meets the requirements, utilize simple speculum and counterpoint structure to realize the accurate equipment of lens, simplify the assembling process of lens, reduce the equipment cost.
Description
Technical Field
The utility model relates to a lens equipment technical field, in particular to positioning assembly tool.
Background
Mobile terminals such as cell-phone, flat board generally are provided with multi-functional module of making a video recording to satisfy the multiple demand of shooing and video recording of user, along with production technical level's promotion, multi-functional module of making a video recording receives user's favor more.
However, in the multifunctional camera module, the circular lens has a directional requirement during the assembly, and needs to perform directional alignment by using a complex visual device, so the assembly process is complex and the assembly cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a positioning assembly tool can utilize simple speculum and counterpoint structure to realize the accurate equipment of lens, simplifies the assembling process of lens, reduces the equipment cost.
In order to solve the above technical problem, an embodiment of the utility model provides a positioning assembly tool, include:
a placing table for carrying a workpiece when a lens is assembled onto the workpiece; and the reflecting mirror is used for receiving and reflecting light rays from the lens, the reflecting surface of the reflecting mirror is provided with an alignment structure, and when the assembly direction of the lens meets the preset standard, the alignment silk screen of the lens is aligned with the alignment structure.
The utility model discloses the embodiment is for prior art, including placing platform and speculum, place the platform and be used for when the lens is assembled to the work piece on, bear this work piece, the plane of reflection of speculum is then towards the lens, be used for receiving and reflecting the light that comes from the lens, the plane of reflection of speculum is equipped with counterpoint structure, equipment position when the lens accords with predetermined standard, the counterpoint silk screen printing of lens is aimed at with this counterpoint structure, through setting up counterpoint structure on the speculum, and utilize counterpoint silk screen printing formation of image on the speculum with the lens on the speculum, when the image of counterpoint silk screen printing with the counterpoint structure on the plane of reflection align, show that the lens equipment meets the requirements promptly, thereby can utilize simple speculum and counterpoint structure to realize the accurate equipment of lens, simplify the assembling process of lens, and reduce the assembly cost.
Optionally, the placing table is provided with a light-transmitting structure, light from the lens propagates to the reflecting surface through the light-transmitting structure, and the reflecting surface reflects the light and penetrates through the light-transmitting structure. The placing table is provided with a light-transmitting structure, light from the lens is transmitted to the reflecting surface of the reflector through the light-transmitting structure, and then the light is reflected out of the light-transmitting structure through the reflecting surface, so that the alignment condition of the alignment silk screen on the lens and the alignment structure on the reflecting surface can be observed conveniently.
Optionally, the light-transmitting structure includes a light-entering through hole and a light-exiting through hole, and the light-entering through hole and the light-exiting through hole are respectively arranged opposite to the reflection surface; when the lens is assembled, light rays from the lens pass through the light inlet through hole, then reach one side of the reflecting surface, are reflected by the reflecting surface to the light outlet through hole, and are emitted out through the light outlet through hole. The light-transmitting structure comprises a light-entering through hole and a light-emitting through hole, wherein the light-entering through hole is arranged opposite to the reflecting surface, the light-emitting through hole exposes the reflector, when the lens is assembled, the lens is positioned on one side of the placing table departing from the reflecting surface and is opposite to the light-entering through hole, light from the lens passes through the light-entering through hole and then reaches one side of the reflecting surface and is reflected to the light-emitting through hole by the reflecting surface, and is emitted through the light-emitting through hole, the light-entering through hole and the light-emitting through hole are directly arranged on the placing table to serve as the light-transmitting structure, the use of additional parts is reduced, and the manufacturing cost of the positioning assembly jig is reduced.
Optionally, the light inlet through hole is communicated with the light outlet through hole. The light inlet through hole and the light outlet through hole are communicated into one hole, so that the through holes can be arranged at one time during processing, the manufacturing process of the positioning and assembling jig is simplified, and the manufacturing difficulty and the manufacturing cost of the positioning and assembling jig are reduced.
Optionally, the mirror is disposed at an angle to the placement stage. The speculum and place the platform and become the angle setting, like this, the scope that the speculum can reflect the lens coverage with the light that comes from the lens, makes things convenient for the assembly personnel to observe the counterpoint condition.
Optionally, the reflector includes a first reflector and a second reflector, the first reflector is configured to receive the light from the lens and reflect the light to the second reflector, the second reflector is configured to receive and reflect the light reflected by the first reflector, and the second reflector is provided with the alignment structure. The speculum includes first speculum and second mirror, first speculum is used for receiving the light that comes from the lens and reflects to the second mirror, the second mirror is used for receiving and reflects the light that first speculum reflected, be equipped with counterpoint structure on the second mirror, the second mirror reflects the light that first speculum reflected like this out, and set up counterpoint structure on the second mirror, the assembly personnel can set up the position and the angle of the second mirror in advance, reflection through the second mirror, observe the counterpoint silk screen printing and the counterpoint condition of counterpoint structure of lens on the second mirror.
Optionally, the device further comprises a hollow cylindrical side wall with an opening at the top, the placing table is fixedly connected to the side wall and located above the opening, and the side wall and the placing table enclose an accommodating space; the reflecting mirror includes a first reflecting mirror and a second reflecting mirror, and the first reflecting mirror and the second reflecting mirror are located in the accommodating space. The positioning assembly jig further comprises a hollow cylindrical side wall with an opening, the placing table is fixedly connected to the side wall and covers the opening, the side wall and the placing table are enclosed to form an accommodating space, the first reflector and the second reflector are located in the accommodating space, and therefore the side wall and the placing table surround the first reflector and the second reflector to protect the first reflector and the second reflector and prevent the reflectors from being damaged.
Optionally, the first reflector and the second reflector both have opposite ends, one end of the first reflector is connected to one end of the second reflector, the other end of the first reflector is connected to the side wall, and the other end of the second reflector is connected to the side wall. First speculum and second mirror all have relative both ends, and the one end of first speculum and the one end of second mirror are connected, and the other end of first speculum is connected in the lateral wall, and the other end of second mirror is connected in the lateral wall, and like this, the equal fixed connection of first speculum and second mirror in the lateral wall improves the stability of first speculum and second mirror to improve the stability of positioning assembly tool.
Optionally, a positioning structure is arranged on the placing table, and the positioning structure is used for fixing the workpiece. The placing table is provided with a positioning structure, and the positioning structure is used for fixing a workpiece, so that the stability of the workpiece in the assembling process can be improved, the workpiece is prevented from shifting, and the assembling accuracy of the lens is ensured.
Optionally, the alignment structure is an alignment line marked on the reflecting surface of the reflector. The alignment structure is an alignment line marked on the reflecting surface of the reflector, and the alignment line is used as the alignment structure, so that the structure is simple and the setting difficulty is low.
Drawings
Fig. 1 is a schematic structural view of a positioning and assembling jig according to an embodiment of the present invention;
fig. 2 is a schematic view of an internal structure of a positioning and assembling jig according to an embodiment of the present invention;
fig. 3 is a schematic view of a light-transmitting structure of a positioning and assembling jig according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a positioning and assembling jig according to an embodiment of the present invention;
fig. 5 is a top view of a positioning and assembling jig according to an embodiment of the present invention;
fig. 6 is a schematic structural view of another positioning and assembling jig according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a positioning structure of a positioning assembly fixture according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
In the embodiments of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "opened," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.
The technical solution of the present invention will be further explained with reference to the following detailed description and accompanying fig. 1-7.
The utility model discloses an embodiment relates to a positioning assembly tool. As shown in fig. 1 and 2, the present invention includes:
the positioning device comprises a placing table 100 and a reflecting mirror 200, wherein the placing table 100 is used for bearing the workpiece 400 when the lens 300 is assembled on the workpiece 400, the reflecting mirror 200 is used for receiving and reflecting light rays from the lens 300, the reflecting surface of the reflecting mirror 200 is provided with an alignment structure 500, and when the assembling orientation of the lens 300 meets a preset standard, the alignment silk screen 310 of the lens 300 is aligned with the alignment structure 500.
Compared with the prior art, the utility model, including placing platform 100 and speculum 200, place platform 100 and be used for when lens 300 is assembled to work piece 400, bear this work piece 400, the plane of reflection of speculum 200 is then towards lens 300, be used for receiving and reflecting the light that comes from lens 300, the plane of reflection of speculum 200 is equipped with counterpoint structure 500, when the equipment position of lens 300 accords with predetermined standard, counterpoint silk screen printing 310 of lens 300 aligns with this counterpoint structure 500, through setting up counterpoint structure 500 on speculum 200, and utilize speculum 200 to form the image on lens 300 with counterpoint silk screen printing 310 on speculum 200, when the image of counterpoint silk screen printing 310 aligns with counterpoint structure 500 on the plane of reflection, show that lens 300 assembles the conformity with the requirement promptly, thereby can utilize simple speculum 200 and counterpoint structure 500 to realize the accurate equipment of lens 300, simplify the equipment process of lens 300, the assembly cost is reduced.
In some embodiments, the positioning stage 100 is disposed at an angle to the reflector 200, so that the reflector 200 can reflect the light from the lens 300 out of the range covered by the lens 300, thereby facilitating the alignment observation of the assembly personnel.
Specifically, the reflector 200 is one, and the alignment assembly of the lens 300 is realized by using one reflector 200, so that the structure of the positioning and assembling jig is simplified, and the manufacturing difficulty and the manufacturing cost of the positioning and assembling jig are reduced.
Referring to fig. 1 again, in some embodiments, the placing stage 100 is provided with a light-transmitting structure 110, light from the lens 300 is transmitted to the reflective surface of the reflector 200 through the light-transmitting structure 110, and the light is reflected out of the light-transmitting structure 110 by the reflective surface, so that the alignment condition of the alignment silk-screen 310 on the lens 300 and the alignment structure 500 on the reflective surface can be observed conveniently.
It can be understood that the placing table 100 may be made of a transparent material, and at this time, the placing table 100 may not be provided with the transparent structure 110, or the placing table 100 is made of a non-transparent material, and the transparent structure 110 is made of a transparent material, or both the placing table 100 and the transparent structure 110 are made of a transparent material, and the transparent material may be made of transparent glass, transparent plastic or other materials capable of transmitting light, so long as light can normally propagate through the transparent structure 110, so that an assembler can observe the alignment condition of the lens 300 and the alignment structure 500.
Specifically, the light-transmitting structure 110 includes a light-entering through hole 111 and a light-exiting through hole 112, wherein the light-entering through hole 111 is disposed opposite to the reflection surface of the reflector 200, and the light-exiting through hole 112 exposes the reflector 200, when the lens 300 is assembled, the lens 300 is disposed on one side of the placing table 100 away from the reflection surface and opposite to the light-entering through hole 111, and light from the lens 300 passes through the light-entering through hole 111, reaches one side of the reflection surface, is reflected by the reflection surface to the light-exiting through hole 112, and exits through the light-exiting through hole 112, and the light-entering through hole 111 and the light-exiting through hole 112 are directly disposed on the placing table 100 as the light-transmitting structure 110, so that the use of additional components is reduced, and the manufacturing cost of a positioning assembly fixture is reduced.
Referring to fig. 3, in some embodiments, the light-in through hole 111 and the light-out through hole 112 are communicated as a hole, that is, the light-transmitting structure 110 is a through hole, so that the through hole can be disposed at one time during processing, the manufacturing process of the positioning and assembling jig is simplified, and the manufacturing difficulty and the manufacturing cost of the positioning and assembling jig are reduced.
Referring to fig. 4 and 5, in some embodiments, the reflective mirror 200 includes a first reflective mirror 210 and a second reflective mirror 220, the first reflective mirror 210 is used for receiving light from the lens 300 (shown by a dotted line) and reflecting the light to the second reflective mirror 220, the second reflective mirror 220 is used for receiving and reflecting the light reflected by the first reflective mirror 210 (shown by a dotted line), the second reflective mirror 220 is provided with an alignment structure 500, so that the light reflected by the first reflective mirror 210 is reflected by the second reflective mirror 220, and the alignment structure 500 is provided on the second reflective mirror 220, so that an assembler can set a position and an angle of the second reflective mirror 220 in advance, and observe an alignment condition between the alignment silk-screen 310 and the alignment structure 500 of the lens 300 on the second reflective mirror 220 by reflection of the second reflective mirror 220.
It can be understood that the alignment structure 500 can also be disposed on the first reflecting mirror 210, and the second reflecting mirror 220 is only used for reflecting the alignment condition between the image of the alignment silk-screen 310 and the alignment structure 500 on the first reflecting mirror 210, or the alignment structure 500 can be disposed on both the first reflecting mirror 210 and the second reflecting mirror 220, as long as the assembling personnel can accurately observe the alignment condition between the image of the alignment silk-screen 310 and the alignment structure 500 through the positioning assembling jig, and assemble the lens 300 on the workpiece 400, the embodiment of the present invention is not limited to this.
In some embodiments, the alignment structure 500 is an alignment line marked on the reflective surface of the second mirror 220, and the alignment line is the alignment structure 500, which is simple in structure and low in difficulty in installation.
Optionally, the alignment structure 500 may also be an alignment band or other alignment structures 500, for example, a band-shaped region formed by two mutually close straight lines, when the alignment structure 500 is a line or a band, the alignment structure may be integrated or segmented, as long as the alignment structure 500 can be aligned with the alignment screen 310 of the lens 300, which is not specifically limited in this embodiment of the present invention.
Optionally, the included angle between the reflection surface of the first reflection mirror 210 and the placing table 100 may be 30 ° -60 ° (e.g. 30 °, 45 °, 60 °), or other angles, and the included angle between the reflection surface of the first reflection mirror 210 and the reflection surface of the second reflection mirror 220 may be 80 ° -120 ° (e.g. 80 °, 90 °, 100 °, 110 °, 120 °), or other angles, as long as the assembler can accurately observe the alignment condition of the alignment screen 310 and the alignment structure 500 through the positioning assembly fixture, which is not specifically limited by the present invention.
Referring to fig. 4 again, specifically, an included angle between the reflection surface of the first reflector 210 and the placing table 100 is 45 °, an included angle between the reflection surface of the first reflector 210 and the reflection surface of the second reflector 220 is 90 °, at this time, light (shown by a dotted line) from the lens 300 is reflected by the first reflector 210 and then transmitted to the second reflector 220, and then reflected by the second reflector 220 and transmitted to the outside of the positioning and assembling jig, and an assembling worker determines the alignment condition between the lens 300 and the alignment structure 500 by observing the imaging condition on the second reflector 220, and further determines whether the assembling of the lens 300 is expected.
In addition, in the present embodiment, the positioning and assembling jig further includes a hollow cylindrical side wall 600 having an opening, the placing table 100 is fixedly connected to the side wall 600 and covers the opening, the side wall 600 and the placing table 100 enclose an accommodating space, and the first reflecting mirror 210 and the second reflecting mirror 220 are located in the accommodating space, so that the side wall 600 and the placing table 100 surround the first reflecting mirror 210 and the second reflecting mirror 220 to protect the first reflecting mirror 210 and the second reflecting mirror 220 and prevent the reflecting mirror 200 from being damaged.
Alternatively, the sidewall 600 may be made of metal, plastic or other materials, as long as the sidewall 600 has a certain strength, and can cooperate with the placing table 100 to surround the first reflecting mirror 210 and the second reflecting mirror 220, so as to provide protection for the first reflecting mirror 210 and the second reflecting mirror 220, and does not affect the normal use of the positioning assembly fixture, and the embodiment of the present invention is not specifically limited to this.
In some embodiments, the first reflective mirror 210 and the second reflective mirror 220 each have two opposite ends, one end of the first reflective mirror 210 is connected to one end of the second reflective mirror 220, the other end of the first reflective mirror 210 is connected to the inner wall of the side wall 600, and the other end of the second reflective mirror 220 is connected to the inner wall of the side wall 600, so that the first reflective mirror 210 and the second reflective mirror 220 are both fixedly connected to the side wall 600, the stability of the first reflective mirror 210 and the second reflective mirror 220 is improved, and the stability of the positioning assembly jig is improved.
Referring to fig. 6, in other embodiments, when there is one reflector 200 of the positioning assembly fixture, the alignment structure 500 is disposed on the reflective surface of the reflector 200, at this time, an included angle between the reflective surface of the reflector 200 and the placing table 100 is smaller than 90 °, and the sidewall 600 is provided with a notch for emitting light (as shown by a dotted line), so as to reduce the number of additional components and reduce the manufacturing cost of the positioning assembly fixture.
Optionally, the lateral wall 600 may not set up the breach, or the position that the lateral wall 600 corresponds emergent ray adopts the printing opacity material to make, or whole lateral wall 600 has the printing opacity material to make, and whole lateral wall 600 only needs the assembler to observe counterpoint silk screen 310 and counterpoint structure 500's the counterpoint condition on the lens 300 under the reflection of speculum 200 can, the embodiment of the utility model provides a do not specifically limit to this.
Referring to fig. 7, in some embodiments, the positioning structure 130 is disposed on the placing stage 100, and the positioning structure 130 is used for fixing the workpiece 400, so as to improve the stability of the workpiece 400 during the assembling process, prevent the workpiece 400 from shifting, and improve the assembling accuracy of the lens 300.
Furthermore, the positioning structure 130 is detachably disposed on the placing table 100, so that when products with different specifications need to be assembled, only the positioning structure 130 on the placing table 100 needs to be detached, and the positioning structures 130 with other specifications need to be replaced.
It can be understood that, the positioning and assembling jig may also be provided with a CCD camera or other visual devices at the light exit position of the reflector 200 for capturing and analyzing the image of the alignment silk-screen 310 and the alignment condition of the alignment structure 500 on the reflector 200, thereby improving the alignment accuracy and further ensuring the assembling accuracy of the lens 300.
The utility model provides a location equipment tool places platform 100 and speculum 200 and is used for bearing the work piece 400 of equipment lens 300 including placing platform 100, still is equipped with counterpoint silk screen printing 310 on the lens 300, through set up counterpoint structure 500 on the plane of reflection at speculum 200, like this, when equipment lens 300, if counterpoint silk screen printing 310 like and counterpoint structure 500 are aimed at, then the equipment of lens 300 accords with anticipatedly. The utility model discloses utilize the specular reflection principle, simplify lens equipment, provide a positioning assembly tool, simplify the assembling process of lens 300, reduce the equipment cost.
The above is to the positioning assembly jig that the embodiment of the present invention provided introduces in detail, and it is right to have used specific individual example herein the principle and the embodiment of the present invention to explain, and the explanation of the above embodiment is only used for helping to understand the utility model discloses an idea all has the change part on specific embodiment and application scope, to sum up, the content of this specification should not be understood as the restriction of the utility model.
Claims (10)
1. The utility model provides a positioning and assembling jig for assemble the lens, its characterized in that includes:
a placing table for carrying a workpiece when a lens is assembled onto the workpiece; and
the reflecting mirror is used for receiving and reflecting light rays from the lens, the reflecting surface of the reflecting mirror is provided with an alignment structure, and when the assembly direction of the lens meets a preset standard, the alignment silk screen of the lens is aligned with the alignment structure.
2. The positioning and assembling jig of claim 1, wherein the placing table is provided with a light-transmitting structure, light from the lens is transmitted to the reflecting surface through the light-transmitting structure, and the reflecting surface reflects the light and penetrates through the light-transmitting structure.
3. The positioning and assembling jig of claim 2, wherein the light-transmitting structure comprises a light-in through hole and a light-out through hole, and the light-in through hole and the light-out through hole are respectively arranged opposite to the reflection surface;
when the lens is assembled, light rays from the lens pass through the light inlet through hole, reach the reflecting surface, are reflected by the reflecting surface to the light outlet through hole, and are emitted out through the light outlet through hole.
4. The jig of claim 3, wherein the light inlet hole is communicated with the light outlet hole.
5. The positioning and assembling jig according to any one of claims 1 to 4, wherein the reflecting mirror is disposed at an angle to the placing table.
6. The positioning and assembling jig according to any one of claims 1 to 4, wherein the reflecting mirror comprises a first reflecting mirror and a second reflecting mirror, the first reflecting mirror is used for receiving the light from the lens and reflecting the light to the second reflecting mirror, the second reflecting mirror is used for receiving and reflecting the light reflected by the first reflecting mirror, and the second reflecting mirror is provided with the alignment structure.
7. The positioning and assembling jig according to claim 6, further comprising a hollow cylindrical side wall having an opening at the top, wherein the placing table is fixedly connected to the side wall and located above the opening, and the side wall and the placing table enclose an accommodating space;
the first mirror and the second mirror are located in the accommodating space.
8. The jig of claim 7, wherein the first reflector and the second reflector have opposite ends, one end of the first reflector is connected to one end of the second reflector, the other end of the first reflector is connected to the sidewall, and the other end of the second reflector is connected to the sidewall.
9. The positioning and assembling jig according to any one of claims 1 to 4, wherein a positioning structure is provided on the placing table, and the positioning structure is used for fixing the workpiece.
10. The jig of any one of claims 1-4, wherein the alignment structure is an alignment line marked on the reflective surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220899283.8U CN217513778U (en) | 2022-04-18 | 2022-04-18 | Positioning and assembling jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220899283.8U CN217513778U (en) | 2022-04-18 | 2022-04-18 | Positioning and assembling jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217513778U true CN217513778U (en) | 2022-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220899283.8U Active CN217513778U (en) | 2022-04-18 | 2022-04-18 | Positioning and assembling jig |
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| Country | Link |
|---|---|
| CN (1) | CN217513778U (en) |
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2022
- 2022-04-18 CN CN202220899283.8U patent/CN217513778U/en active Active
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